The dog days are coming! Meteorological data tell you how hot the weather has been recently.

Expert consultant:

Yuan Yuan, Chief Duty Officer of National Climate Center in Flood Season.

Chen Yu, Chief of Climate Service Office of National Climate Center

Li Ying, Senior Engineer of Meteorological Disaster Risk Management Office of National Climate Center

After entering the light summer solar term on July 7, it ushered in the first stage on July 16, and we are about to face the test of "steaming up and cooking down" in the dog days. Since mid-June, many places in China have started the high-temperature "roasting mode" ahead of schedule, and many cities have experienced high-temperature weather above 40 C. Meteorological data tell you how fierce this wave of high temperature is.

How hot is it this summer?

-There are 71 national weather stations that have broken through historical extremes.

Since June 13th, China has experienced the first regional high-temperature weather process this year, and many places have continued to experience high temperature and summer heat. The Central Meteorological Observatory has issued high-temperature warnings for several consecutive days.

As of July 12, the high temperature event has lasted for 30 days, covering China’s land area of 5.021 million square kilometers and affecting more than 900 million people. The average number of high temperature days in China reached 5.3 days, 2.4 days more than normal, the highest in the same period since 1961. Among them, the number of high temperature days in most parts of East China, Central China, Northeast Southwest China, southwestern Shaanxi, southwestern Shanxi and southern Xinjiang is 5 to 10 days more than normal. The number of high temperature days in northwestern Jiangsu, northern Anhui, most of Henan, northwestern Hubei, southeastern Shaanxi and northeastern Chongqing is more than 10 days than normal.

Since June, the daily maximum temperature of 238 national meteorological stations in Hebei, Henan, Tianjin, Yunnan, Sichuan, Zhejiang, Xinjiang and other places has exceeded the monthly extreme value, and the daily maximum temperature of 71 national meteorological stations has exceeded the historical extreme value. Among the top ten stations with high temperature values, the daily maximum temperature in Lingshou, Hebei (44.2℃, June 25th), Gaocheng (44.1℃, June 25th), Zhengding (44.0℃, June 25th) and Yanjin, Yunnan (44.0℃, July 11th) exceeded 44℃. The daily maximum temperature in Lanzhou, Gansu (37.6℃, June 24th), Yinchuan, Ningxia (37.2℃, June 16th), Tianjin (40.1℃, June 25th) and other provincial capitals or municipalities directly under the central government exceeded the monthly maximum. Shanghai Xujiahui Station not only had the earliest high temperature of 40℃ on July 10th, but also reached 40.9℃ at 14: 30 on July 13th, tying the highest temperature record since the local meteorological record (1873).

June 25th is the day with the largest number of high temperature extreme stations since June, in which the daily maximum temperature of 28 stations exceeded the historical extreme value, and the top ten stations with daily maximum temperature all appeared in Hebei.

According to the monitoring index of regional high temperature process, considering the influence scope, intensity and duration of high temperature events, the comprehensive intensity of this event is the sixth strongest since 1961, second only to 2013, 2017, 2003, 1966 and 2019. Since 2000, the typical years of large-scale sustained high temperature events in China are 2003, 2013 and 2017. Generally speaking, this year’s high temperature event started earlier than the above three years, and the duration and the number of historical extreme high temperature stations are not as good as these three years. Although the influence scope and the maximum temperature of a single station are not as good as 2017, they have exceeded 2003 and 2013.

Comparison between high temperature events in 2022 and typical historical events Source: National Climate Center.

Early warning data can also show the "off the charts" degree of high temperature. Since June (as of July 13th), except Heilongjiang and Liaoning, 29 provinces (autonomous regions and municipalities directly under the Central Government) have issued 15,008 high-temperature warnings, including 1,869 red warnings, 8,931 orange warnings, 4,122 yellow warnings and 86 blue warnings. Among them, the number of high temperature warnings issued on July 10 was the highest, with 857. Henan, Hunan, Shaanxi, Hebei and Sichuan are the provinces that issue the most high-temperature warnings. The top ten provinces that have issued high temperature warnings for the longest time in a row are Henan (31 days), Xinjiang (20 days), Anhui (19 days), Shaanxi (17 days), Sichuan (17 days), Shanxi (13 days), Gansu (13 days), Hebei (12 days), Jiangsu (12 days) and Yunnan (12 days)

From June 1st to July 13th, the top five provinces of high temperature warning release data source: National Early Warning Information Release Center.

 The northern hemisphere suffered a "heat wave"

-Extreme high temperatures are hitting many parts of the world.

Extreme high temperature weather is continuing around the world, and high temperature heat wave events spread in Europe, East Asia and North America, and the highest temperature at the same time exceeded the historical extreme.

In mid-June, Europe generally suffered from high temperature and heat waves. On June 10th, hot weather began to appear in Portugal. On the 13th, the temperature in central and southern Spain has exceeded 40℃; On the 18th, the highest peak of this round of high temperature weather occurred in France. As many as 70 provinces issued high temperature warnings, and high temperature records in many places were broken. On the 19th, a record high temperature occurred in Germany, and a forest fire broke out in Brandenburg, forcing about 620 residents to evacuate.

In mid-June, record high temperatures spread from the Great Plains of the United States to the Mississippi Valley and the southeast. More than 125 million people in most States in the central and eastern United States are under high temperature warning, which is more than one third of the population of the United States.

On the afternoon of June 25th, the temperature in Isezaki, Gunma Prefecture, Japan reached 40.2℃, the highest temperature in June since Japan had meteorological records.

Global average temperature anomaly in June 2022 Image source: Global Severe Weather Monitoring Monthly Report.

Why is the high temperature so fierce and strong?

-Global warming and abnormal atmospheric circulation are the main causes.

The sixth assessment report of the United Nations Intergovernmental Panel on Climate Change (IPCC) points out that global warming is happening at an unprecedented speed since 2000 in the last 50 years, and the instability of the climate system is increasing. UN Secretary-General antonio guterres called it a "red alert for all mankind". Global warming is the climate background of frequent high-temperature heat waves in the northern hemisphere, and abnormal atmospheric circulation is the direct cause of frequent high-temperature heat waves in many places around the world since June this year.

Since June this year, over the northern hemisphere subtropical zone, the western Pacific subtropical high zone, the Atlantic high zone and the Iranian high zone have all been enhanced in stages, thus forming a large-scale global warm high zone. Under the control of warm and high-pressure belts, the prevalence of downward flow is conducive to the ground warming. In addition, under the action of a wide range of high-pressure belts, the air is relatively dry and it is not easy to form clouds, which also makes solar radiation reach the ground more easily, leading to frequent high temperatures and strong intensity, which in turn leads to persistent high-temperature heat waves in many places in the northern hemisphere.

Specific to China, the ongoing La Ni? a event has provided an important climatic background for the occurrence and development of high temperature in the south since June this year, especially in July, when the development of the mid-latitude warm and high pressure belt strengthened, resulting in a large-scale high temperature weather. According to statistical analysis, in the summer following most La Nina events, the western Pacific subtropical high (referred to as subtropical high) tends to be northward. Since late June this year, the subtropical high has moved northward, especially after Typhoon Siam moved northward in early July. The subtropical high has been extended westward, and the Iranian high has been extended eastward. Combined with the mid-latitude continental high, a stable warm and high pressure zone has been formed over China, which has caused a wide range of high temperature weather. In addition, due to the water vapor carried by the subtropical high, the humidity in the central and eastern regions of China is relatively high, which makes the human body temperature higher.

Compared with previous years, since July this year, the Iranian high has been extended eastward to form a huge warm high pressure belt with the western Pacific subtropical high and the mid-latitude continental high, which is rare in history. Historically, high-temperature heat waves occurred in Jiangnan, South China, Sichuan and Chongqing due to the extension of subtropical high to the west, or high temperatures continued in northwest China and Xinjiang due to the stable maintenance of continental high. Therefore, this year, the high temperature range is relatively large, the duration is long, and the extremes are also prominent.

From June 1 to July 12, the number of high temperature days in many places in China exceeded 30 days. Source: National Climate Center.

The high temperature will continue

—— Do not treat health protection in production and life lightly.

According to the forecast of the Central Meteorological Observatory, as of July 26, there will be many hot weather in southern China and other places. From July 13th to 16th, it was hot and rainy in Sichuan Basin, Shaanxi Guanzhong, Jianghan, Jianghuai, Jiangnan and South China. From 17th to 20th, there will be rain in Sichuan Basin, Jianghan, Jianghuai, the western and northern parts of the south of the Yangtze River, and the northwestern part of South China, and the high temperature weather will be alleviated, while the southeastern part of the south of the Yangtze River and the eastern part of South China will continue to be hot and muggy. After the 21st, the high temperature in the south will develop again, and the scope will be expanded.

The National Climate Center predicts that from July 27 to August 11, the temperature in most parts of China will be higher than normal, and the temperature in western Inner Mongolia, Shanghai, Jiangsu and northern Zhejiang will be 1℃~2℃ higher, which may lead to a long-lasting high temperature weather process.

High temperature weather will have a great impact on power supply, people’s production, life and health. The public should try to avoid outdoor activities at high temperature, and shorten working hours when working at high temperature. We should pay special attention to heatstroke, prevent, identify and treat it early, especially for the old, weak, sick and young people. Attention should also be paid to the safety of electricity consumption in hot weather, and the power sector should respond to the deployment in advance to prevent the supply shortage and fire hazards caused by the surge in electricity consumption and excessive power load.

(Author: Luan Fei Yan Hong Wang Meili Cartography: Zhao Miao Source: National Climate Center National Early Warning Information Release Center Editor: Minglu Zhang)

The daughter was admitted to the university because of the aid project. The Xinjiang man rode Wan Li to thank him.

  Li Zhiyuan rested on the way to feed the horses.

  Enter the urban area of Lianyungang and be escorted by the police.

  Schools aided by Lianyungang.

  Li Zhiyuan, a 38-year-old from Kaigan Community, Mohur District, Horgos, Xinjiang, has traveled more than ten thousand miles from the terminal of Lianhuo Expressway at Horgos Port. Yesterday, he finally arrived in Lianyungang, the east bridgehead of the New Eurasian Continental Bridge.

  Li Zhiyuan, who just jumped off his horse, told Zi Niu news reporter that he "tossed" all the way to Lianyungang this time, one for gratitude, and the other for riding "slowly" in China to see the great rivers and mountains and beautiful scenery of the motherland.

  Lianyungang aided the school, and his children benefited. He must personally send a banner and thank you.

  On an empty meadow in Baita Town, Donghai County, Lianyungang City, Zi Niu news reporter saw Li Zhiyuan and two dark horses carrying him for 5,000 kilometers. "This one is my mount, and the other one is used to carry luggage. It is about to enter the city." Li Zhiyuan said with a smile.

  "I rode to Lianyungang this time and wanted to send two banners to the Lianyungang municipal party Committee and municipal government. Thank them for their aid to Horgos for so many years. My eldest daughter, Li Huimin, just graduated from Sugang Middle School and was admitted to the university. My five-and-a-half-year-old son, Li Yuxin, is in a large class at Horgos Gegan Garang Axi Kindergarten. This time I am here to thank the Lianyungang Municipal Party Committee and Municipal Government! " Li Zhiyuan’s dark face is full of sincerity.

  Su Gang Middle School in Li Zhiyuan’s mouth was formerly Horgos Port Middle School. Lianyungang participated in the aid construction of Sugang Middle School, which was officially opened in September 2013. In 2014, a high school was established and the first high school students were enrolled.

  Li Zhiyuan’s daughter was admitted to Changji Vocational and Technical College in Xinjiang from Sugang High School. The Gegan Garang Axi Kindergarten he mentioned is also one of the 10 bilingual kindergartens aided by Lianyungang in Horgos.

  Zi Niu news reporter learned that in August 2014, Lianyungang Education Bureau sent seven teachers to Sukang Middle School in Horgos City to teach for one year, which solved the problem of insufficient teachers for junior high schools.

  The vice-president of Jiangsu Port High School’s aiding Xinjiang told Zi Niu news reporter that Lianyungang City also sent a large number of excellent teachers to teach in Jiangsu Port Middle School, which brought the concept and mode of school teaching management in Jiangsu into middle schools, and the quality of education and teaching in local schools has been significantly improved.

  This year, Sugang High School welcomed eight teachers who helped Xinjiang in the ninth session. They founded Lianyungang Class in the first and third grades of high school, which had a great influence on students’ learning.

  At present, there is only one high school in Horgos, Su Gang Senior High School, with 784 students, 91 faculty members and 21 classes. In 2019, there were 198 candidates who took the college entrance examination, 56 of them were online, the online rate was 28.5%, and 19 of them scored above 500. The school ranked among the top high schools in counties and cities in Yili.

  Li Zhiyuan told Zi Niu news reporter that his children have benefited from Lianyungang’s aid to Horgos for so many years. Li Huimin is a student who just graduated from Sugang High School this year. Zi Niu news reporter learned from the teacher that Li Huimin usually studies hard and practically. "He is a very good child." The news that Li Zhiyuan rode his horse from Horgos to Lianyungang to send the pennant this time also touched many teachers in the school. Zeng Baoshan, a former principal of Horgos Sugang Middle School, said that he was surprised by his father’s actions and was deeply moved by his persistence. The changes brought by education are not only reflected in the achievements, but also infected the ardent hearts of every child and parents.

  Li Zhiyuan said that because of this, his idea of riding to Lianyungang to send a pennant became stronger and stronger. After four years of consideration and preparation, with the support of relatives and friends, he embarked on a journey on April 27th this year.

  Pain & Gain

  Wan Li sent a banner, and it was hard to get support from family and community.

  From Horgos to Lianyungang, we have to cross many provinces and cities such as Gansu, Inner Mongolia, Beijing and Jiangsu, and pass through many no-man’s land, which is full of dangers along the way. For Li Zhiyuan, this is his first trip.

  At first, Li Zhiyuan’s father thought that it was not a matter of a few days for his son to ride to Lianyungang, and it would take at least half a year to get there once and for all. He didn’t trust or understand. However, when he learned that his son had made a report with the community branch to the relevant departments at the higher level, and also wrote an application with the public security department, he was relieved.

  Li Zhiyuan’s wife, Dan Yulan, told reporters on the phone that at first Zhiyuan said that he was going to Lianyungang. She didn’t know where Lianyungang was, but it was good to think that her husband had been in this ravine all his life, so she supported her husband’s idea. Now that people have arrived in Lianyungang safely, she has nothing to worry about.

  Li Zhiyuan never reported good news but not bad news when talking to his family. When it comes to her father’s feat, Li Huimin, the eldest daughter, is very proud: "Dad should have worked very hard all the way, but he did a very meaningful thing. He set a good example for us and I am proud of my father."

  Liu Yanchun, secretary of the Party branch of Kaigan Community in Mohur District, told Zi Niu news reporter that Lianyungang has given great support to Horgos in recent years, especially the construction of Su Gang High School in Horgos, where Li Zhiyuan’s children are located, and they have been admitted to the university as expected this year. He sent a banner to the Lianyungang working group, which is also the simplest expression of residents in Kaigan community.

  In order to ride a horse, I walked more than 1000 kilometers and gained friendship and touch in more than 140 days.

  Li Zhiyuan said that it is more than 4,000 kilometers from Horgos to Lianyungang if driving normally, but he has to find a place with grass and water when riding, and he has to walk around frequently, so it takes nearly 1,000 kilometers more than driving normally. At his speed, he walks five or six kilometers every hour, rides eight to ten hours a day, and travels about 60 kilometers a day at most.

  Wan Li trip, although hard, but also moved. On June 1st, he went to a desert Gobi Desert in Dashitou Township, Mulei County, Changji Prefecture. After two horses ate the weeds on the roadside, they suddenly started to slobber and shook their heads, and then they couldn’t walk. It turns out that the kind of weeds that horses eat are called inebriated weeds, also called poisonous weeds. Ma Jianguo, an enthusiastic local villager, not only helped Li Zhiyuan watch the horse, but also instructed him to go to a pharmacy 50 kilometers away to buy an antidote. After three or four days in Majian country, the horse’s condition gradually improved. Before he left, Li Zhiyuan thanked him for paying, but the other party didn’t want any money.

  经过哈密市巴里坤哈萨克自治县大河镇干渠村时,李志远突然接到妻子的电话,说她母亲病重让他抓紧返家。他把两匹马托付给当地一位考姓村民,并掏出一沓钱交给这位考大哥,结果考大哥说,“你要是给钱,就把马儿牵走,我不帮你照看了。”

  李志远匆忙买票返回霍尔果斯,回家后老人第四天就因病不幸去世,他过了岳母的头七后才买票返回考大哥家中,继续他的行程。

  一路下来,李志远觉得最大的收获就是收获了友情和感动,每到一个地方总有热心村民免费给他和他的马儿送吃的送喝的,什么都有,牛肉干、月饼、矿泉水,还有村民自家腌制的咸菜。

  行程继续

  带着母亲的遗愿 去天安门看升国旗

  今年38岁的李志远,从小就是一个孝顺的孩子,由于妈妈生前一直有一个愿望,要去北京天安门广场观看一次升国旗仪式,但是直到倒下也没能如愿。

  李志远告诉紫牛新闻记者,他妈妈糟兰香生于1959年,1998年加入中国共产党,生前一直是霍城县莫乎尔牧场开干村卫生室的一名村医。2011年9月11日,因连续多日带病奋战在脊髓灰质炎强化免疫工作一线,不幸因公殉职。

  李志远说,他在十几岁的时候,就曾听妈妈说她想去北京天安门广场,观看一次升国旗仪式。但是她平时工作太忙了,一直没有时间去,直到这次他打算给连云港市委市政府送完锦旗后,从连云港直接骑马转道北京,替母亲在天安门广场前观看一次升旗仪式,他预计11月初才能到达北京。

  昨天,李志远骑着马还没进城便引起市民围观,连云港市交警支队获悉后,立即派出三辆警用摩托车为李志远护航。连云港市援疆办南方处长表示,他得到消息后,立即将此事向连云港市委办、市政府办进行了汇报,并妥善接待了李志远,将其两匹马安置在新浦公园动物园里的笼舍,由公园饲养员照料。

  连云港市新浦公园管理处主任苗学勇介绍,李志远的两匹马经历了5000多公里行程,非常疲劳,昨天下午到达之前,饲养员已经把笼舍打扫好,并进行消毒,接下来该园将精心照料。

  采访结束前,南方告诉紫牛新闻记者,18日9点半,连云港市委办和市政府办相关人员将在市政府南广场举行相关的接收锦旗仪式。(紫牛新闻记者 张凌飞 见习记者 艾陆琦 )

The cancellation of state compensation forced car companies to raise prices, and the "head-on confrontation" between new energy vehicles and oil vehicles opened.

[Lead: New energy vehicles that are licensed after December 31, 2022 will no longer enjoy the purchase subsidy, and the "state subsidy" will become history, which makes a number of car companies face the pressure of price increase. The price increase of battery raw materials is another main reason for the price increase of new energy vehicles. This means that the new energy vehicle has officially opened the "head-on confrontation" mode with the fuel vehicle. 】

Author | Cai Jialun, Editor | Hezi

The price increase of new energy vehicles is imminent. Is it the foil of marketing strategy or the influence of dynamic changes of policies and markets? 2022 is coming to an end, and major car companies have also reached the stage of sprinting at the end of the year. The sales volume at the end of the year determines the development direction of the next year. According to the overall market sales this year, major new energy vehicle companies will inevitably have a fierce battle at the end of the year. Although the marketing strategy is a way to drive the purchase, this time it is not aimless. Because as early as the end of last year, the Ministry of Industry and Information Technology and other four departments have informed that the policy subsidies will end on the last day of this year.

"National compensation" will eventually become history.

In order to vigorously develop the new energy vehicle market, after discussion by relevant departments, since 2010, consumers who purchase new energy vehicles can enjoy state subsidies according to the types of vehicles they purchase. According to the relevant data of China Automobile Association, from January to October this year, the production of new energy vehicles in China reached 5.445 million units, an increase of 111% over the same period last year; Sales reached 5.28 million units, up 105% year-on-year. It can be seen that the development of new energy vehicles in China is quite outstanding, and both products and technologies have achieved a qualitative leap. "National compensation" plays a vital role in promoting the development of China’s new energy vehicle market.

With the continuous growth and maturity of the new energy vehicle market, the sales volume and ownership of new energy vehicles are also rising. At this time, the role of "subsidy" to promote the development of new energy vehicles will naturally not be as "important" as when the market just started. According to the current market situation, the relevant departments made timely adjustments and decided to cancel the subsidy policy for new energy vehicles: new energy vehicles that are licensed after December 31, 2022 will no longer enjoy the purchase subsidy, and the "state subsidy" will become history.

Subsidies have been cancelled, and manufacturers have "made moves"

With the withdrawal of the state subsidy policy, car companies have to face the cost "pressure" again. In order to ensure that their profits are not affected by a large area, many car companies have "made moves" to open their own marketing strategies. The first move is. A few days ago, the official issued a price adjustment statement, announcing the price increase of a variety of products including its Dynasty series and Ocean series, with the price increase ranging from 2,000 to 6,000 yuan. As the first car company in China to stop selling fuel vehicles, this is the third price increase this year. In the explanation, it is also clear that the reason for the price increase is directly related to the cancellation of subsidies.

It was Ian who announced the price increase. On November 30th, Ai ‘an released the explanation about the price adjustment of the vehicle models, which clearly stated that it would raise the price of its related models by 3,000 to 8,000 yuan. Similarly, consumers who pay the deposit before January 1, 2023 and complete the contract will not be affected by this price adjustment and continue to enjoy the relevant rights and interests. At the same time, many enterprises such as Wenjie, Tucki, etc. have also issued the statement of "National Supplementary Insurance Price" according to their own conditions. For example, in Tucki, as long as the order payment is completed on December 31st, they can enjoy subsidies, and even if the listing time is delayed, the corresponding difference will be borne by the enterprises.

Of course, not all car companies choose to raise prices in response to the withdrawal of the national subsidy policy. Not long ago, on the basis of the highest price reduction of more than 30,000 yuan, the official announced the second "price reduction". This price reduction will be given back to consumers in the form of subsidy insurance. If the car is picked up on time in November, the owner will enjoy an insurance subsidy of 8,000 yuan, while the corresponding subsidy will be halved for consumers who pick up the car in December. There is also a zero-run for price reduction promotion. For its hot-selling models, consumers can complete the deposit payment before December 4 and complete the licensing before December 31, and then they can get a cash back subsidy of up to 12,000 yuan.

Is it really the best time to buy new energy vehicles?

To put it bluntly, it is only a matter of time before the new energy car companies raise prices after the withdrawal of the state compensation. In recent years, the price of new energy vehicles has been unstable. Due to the epidemic, the cost of raw materials and the price of power batteries have soared. Many car companies once announced the suspension of production because of "lack of core". High costs and meager profits can be said to make major manufacturers miserable, and canceling the subsidy policy is tantamount to adding a "heavy burden" to enterprises. In order to protect their own interests, price increase is definitely the most effective and direct way. But for consumers, the "extra" increase in car purchases is undoubtedly a big loss.

Whether it is the best time to buy new energy vehicles now mainly depends on whether the new energy vehicles are actually bought. First of all, let’s look at the price. After the withdrawal from the market, the most serious impact will be the pure electric vehicles from 150,000 to 250,000. After all, in this price range, fuel vehicles still have strong competitiveness, and it is difficult to completely replace its "Jianghu status" in a short time; Secondly, most consumers who choose this price will pay more attention to the practicality of vehicles. The problem of charging energy and mileage anxiety of pure electric vehicles is also the main reason why they keep waiting and seeing. After the withdrawal of the state compensation, the product strength of new energy vehicles has once again ushered in a test.

Although the withdrawal of the state subsidy will have a certain impact on the new energy vehicle market, it will also "sound the alarm" for the new energy vehicle market. Cars really can’t be built by anyone. There are no "genuine" products that can be obtained, and no matter how good-looking PPT is, it is also a verbal check. Those "empty shell" companies that "fill in the blanks" and take policy subsidies will eventually be eliminated by the market.

comment

Without the blessing "protection" of the national subsidy policy, new energy vehicles finally ushered in a "positive confrontation" with fuel vehicles. This also urges car companies to increase investment in technology research and development, product upgrading and other aspects. With the delisting of the state, the new energy automobile industry will eventually usher in a transformation. Although the price is no longer "cheap", the more standardized market environment is undoubtedly a major benefit to consumers. After all, only excellent products can be invincible in the market. Some "weak" car companies will also fall in the "post-subsidy era".

(This article is the original of "Heyan Reading Car" and cannot be reproduced without authorization.)

Team Lu Baoliang of Shanghai Jiaotong University published the latest research results at the machine learning summit ICLR 2024.

Recently, The 12th International Conference on Learning Presentations (ICLR 2024), one of the top conferences in the field of international machine learning, announced the paper recruitment list. Professor Lu Baoliang from the Department of Computer Science and Engineering of School of Electronic Information and Electrical Engineering, Shanghai Jiaotong University, together with Shanghai Zero Unique Technology Co., Ltd., has been selected as the ICLR 2024 Spotlight paper "Large Brain Model for Learning Generic Representations with Tremendorus EEG Data in BCI". There are 7,262 papers submitted worldwide, with an overall acceptance rate of about 31%, of which 5% were selected as Spotlight papers.

Research background

At present, deep learning models based on electroencephalogram (EEG) signals are usually designed for specific data sets or brain-computer interface (BCI) application tasks, which limits the scale of the model and fails to give full play to the representation ability of EEG signals. Recently, Large Language Model (LLM) has made epoch-making progress in text processing. Under this background, Professor Lu Baoliang’s team started to study large-scale EEG model (LEM). Although they are in different fields, they have something in common in the task of data decoding. Researchers use the successful concept of text processing for reference to explore new methods for analyzing EEG signals and building brain-computer interface models, and expand the scientific research vision and application prospects in this field.

However, compared with text data, EEG data sets are usually very small in scale and different in format. The development of large-scale EEG models faces the following challenges:

1) Lack of sufficient EEG data

Compared with natural language and image data, it is extremely difficult to collect large-scale EEG data. In addition, the annotation of EEG data usually requires a lot of energy from domain experts, resulting in only a small number of labeled data sets can be used for specific tasks in BCI, and the EEG signals of these tasks are usually collected from a few subjects, and the duration is usually less than tens of hours. Therefore, there is not a large enough EEG data set to support the training of LEM.

2) Diversified configuration of 2)EEG signal acquisition.

Although there is an international 10-20 system to ensure the standardization of EEG signal acquisition, users can still choose to use EEG caps with different electrode numbers or patch electrodes to collect EEG data according to actual application needs. Therefore, how to process EEG data in different formats to match the input unit of neural Transformer is still a problem to be explored.

3) Lack of effective learning paradigm of EEG representation.

The low signal-to-noise ratio (SNR) of EEG data and different types of noise are very difficult problems. In addition, balancing temporal and spatial features is very important for effective EEG representation learning. Although there are various EEG representation learning paradigms based on deep learning (such as CNN, RNN and GNN) that can be used to process the original EEG data, many researchers still tend to design artificial EEG features because of the above problems.

research results

The goal of this paper is to design a general large-scale EEG model called LaBraM. The model can effectively process various EEG data with different channels and lengths. Through unsupervised training of a large number of EEG data, the research team envisages that the model will have universal EEG representation ability, so that it can quickly adapt to various downstream tasks of EEG. In order to train LaBraM, researchers collected more than 2,500 hours of EEG data of various tasks and formats from 20 public EEG data sets.

Firstly, the original EEG signal is divided into EEG signal channel segments to solve the problem of different electrodes and time lengths. Neural markers with rich semantics are trained by vector quantization neural spectrum prediction to generate neural vocabulary. Specifically, the marker is trained by predicting the Fourier spectrum of the original signal. During the pre-training, some EEG segments will be masked, and the goal of neural Transformer is to predict the masked marks from the visible segments. The research team pre-trained three models with different parameter sizes, 5.8 million, 46 million and 369 million, which is by far the largest model in BCI field. Subsequently, the research team fine-tuned them on four different types of downstream tasks, including classification and regression.

640.png

Fig. 1 overall architecture of lab ram. First, all the input EEG signals will be divided into EEG signal segments through a fixed-length time window, and then the time characteristics will be extracted by applying a time encoder to each segment. Then, temporal and spatial embedding is added to segment features to carry temporal and spatial information. Finally, the embedded sequence is transmitted to the Transformer encoder in fragment order to obtain the final output.

In this paper, neural Transformer is introduced, which is a general architecture for decoding EEG signals, and can process any input EEG signals with any number of channels and length of time, as shown in Figure 1. The key operation to achieve this goal is to divide EEG signals into blocks, which is inspired by fragment embedding in images. Because of the high resolution of EEG in time domain, it is very important to extract time features before segment interaction through self-attention. A time domain encoder composed of multiple time domain convolution blocks is used to encode each EEG segment into segments for embedding. Temporal convolution block consists of one-dimensional convolution layer, group normalization layer and GELU activation function. In order to make the model aware of the temporal and spatial information of fragment embedding, the researchers initialized a temporal embedding list and a spatial embedding list. For any fragment, the corresponding temporal embedding and spatial embedding are added to the fragment embedding. Finally, the embedded sequence will be directly input into the Transformer encoder.

This paper verifies the effectiveness of LaBraM on two downstream task datasets: TUAB and TUEV. We designed three different configurations of LaBraM: LaBraM-Base, LaBraM-Large and LaBraM-Huge. The parameters of LaBraM-Base are 5.8M, LaBraM-Large is 46M and LaBraM-Huge is 369M.

640 (1).png

Tables 1 and 2 above list the best baseline results of TUAB and TUEV and the results of LaBraM. Obviously, LaBraM-Base model is superior to all baseline models in various evaluation indexes of these two tasks. Especially in the more challenging TUEV multi-class classification task, the model has achieved significant performance improvement. It is observed that with the increase of model parameters, LaBraM-Huge model performs best, followed by LaBraM-Large model, and finally LaBraM-Base model. The research team believes that this good performance is attributed to the increase of pre-training data and model parameters. The paper concludes that as long as there is enough EEG data, large-scale EEG models can learn more general EEG representations, thus improving the performance of EEG signals in various downstream tasks.

640 (3).png

Figure 2 compares the performance of the model on TUAB and TUEV data sets, and whether it is included in the pre-training process.

In the pre-training process, the research team hopes that the model can learn the general EEG representation that is not specific to any specific task. Although tag data is not used in the pre-training, in order to eliminate the influence of pre-training data on downstream tasks, this paper compares whether the downstream task data set is included in the pre-training results. It is worth noting that the records of TUAB and TUEV do not intersect with the records of pre-training data sets. As shown in Figure 2, whether the downstream task data set is included in the pre-training process of the model has little influence on the performance of the model on downstream tasks. This shows that the model has the ability to learn general EEG representation, and provides guidance for collecting more EEG data in the future, that is, researchers do not need to spend a lot of energy labeling EEG data in the pre-training process.

Author information

Jiang Weibang, a Ph.D. student in the Department of Computer Science and Engineering, School of Electronic Information and Electrical Engineering, Shanghai Jiaotong University, is the first author of this paper, and Dr. Zhao Liming from Shanghai Zero Unique Technology Co., Ltd. and Professor Lu Baoliang from the Department of Computer Science, Shanghai Jiaotong University are co-authors of this paper.

02.jpg

Lv Baoliang, Professor of Computer Science and Engineering Department of Shanghai Jiaotong University, Professor Guangci of Ruijin Hospital affiliated to Shanghai Jiaotong University School of Medicine, doctoral supervisor, IEEE Fellow. He is currently the director of Shanghai Key Laboratory of Intelligent Interaction and Cognitive Engineering of Shanghai Jiaotong University, the executive dean of Qingyuan Research Institute of Shanghai Jiaotong University, the co-director of Brain-Computer Interface and Neural Regulation Center of Ruijin Hospital affiliated to Shanghai Jiaotong University School of Medicine, the director of the joint laboratory of encephalopathy center-Mihayou of Ruijin Hospital affiliated to Shanghai Jiaotong University School of Medicine, and the founder and chief scientist of Shanghai Zero Unique Technology Co., Ltd. He is the editorial board member of IEEE Transactions on Affective Computing, Journal of Neural Engineering, IEEE Transactions on Cognitive and Developmental Systems, Pattern Recognition and Artificial Intelligence and Journal of intelligence science and technology.Won the 2022 Asia-Pacific Neural Network Society Outstanding Achievement Award, ACMM 2022 Top Paper Award, and 2021 IEEE Transactions on Affective Computing Best Paper Award. The first prize of Wu Wenjun Artificial Intelligence Natural Science in 2020 and the Best Paper Award of IEEE Transactions on Autonomous Mental Development in 2018 were selected into Elsevier’s list of highly cited scholars in China in 2020, 2021 and 2022. The main research fields include the theory and model of bionic computing, deep learning, emotional intelligence, emotional brain-computer interface and its application in the diagnosis and treatment of emotional disorders.

Paper linkhttps://openreview.net/forum? id=QzTpTRVtrP

Stay at home and "go to court". This online trial guide is useful for everyone!

Click on the blue word to follow us

During the epidemic period, how should the parties participate in the trial?

Don’t worry, the most comprehensive Internet trial operation guide makes it easy for you to participate in the trial!

Internet trial operation guide

I. Preparations

Party preparation work

1. Prepare a mobile phone. (Android or IOS phones are available)

2. Store the relevant materials that need to be displayed in the Internet court in the mobile phone in the form of pictures or videos in advance.

3. Add the APPlet "Yunting" to WeChat search or download the mobile app. The download address is:

Client download address: https://cov.tcloudspace.com/ots/download/48707457.

Preparatory work for judges

1. Users log in to Huayuyun conference system.

Website: http://39.106.82.140:8080/libra/login

2. Create a trial: After logging in, users can click the "Create Meeting" button to create a meeting.

3. Court hearing information: fill in the case information.

(1) Name of the case: fill in the name of the case.

(2) court session time: select the start and end time of the case.

(3) Participants’ information: The mobile phone number is used for the participants to receive the short message notice of the trial, and it is necessary to ensure the accuracy of the input information.

(4) After the creation is successful, the data can be viewed in the meeting list. After booking the online court session, participants will receive SMS notification and log in according to the prompts.

Second, the landing trial

1. The parties enter the trial number on the short message through the mobile phone client to enter the trial.

You can also search for the applet "Yunting" from WeChat, and authorize WeChat to log in. The mobile phone number bound by WeChat must be consistent with the information provided in the trial before entering the trial. (app login is recommended, and Apple phones can only log in with applets.)

2. The judges log in by inputting the trial code on the received SMS through their corresponding computer clients.

Third, the trial began

(Computer client screen)

1. After the judge clicks "Start", the trial officially begins. Judges can also screen their own voices and pictures, and view the information of the parties; In the lower left corner of the video screen, the role+name is displayed.

(Mobile phone screen)

2. During the trial, both parties conducted evidence, cross-examination and debate through the system.

(1) Switch the evidence directory and display the evidence list uploaded by different parties.

(2) By clicking the arrow icon in the upper right corner, the parties can upload and display the information stored in the mobile phone in advance. Uploading materials only support pictures (png, jpg), videos MP4, MP3, Word and Pdf.

(3) View the current transcript and click the file icon in the upper right corner to display the current transcript.

(4) Apply for comments: issue the right to apply for comments to the judge.

(5) Apply for desktop sharing: issue the right to apply for desktop sharing to the judge.

(6) Annotation icon: different characters are displayed, and different annotation colors are displayed when annotating.

(7) Toolbar: you can enlarge, shrink, annotate, cancel, erase, rotate left and right the picture evidence; When clicking "Annotate", you can draw on the picture evidence; The three functions of annotation, cancellation and erasure require the parties to apply to the judge for annotation and the judge agrees before they can be used.

(8) There is a blockchain mark in the evidence list. You can check the winding of this evidence by clicking the mark, and you can check the trial transcript in real time.

Fourth, close the court

At the end of the trial, click before the court closes, and the judge initiates the signature. The judge scans the QR code for signature.

(After the parties click "Confirmation Record", the mobile phone will sign)

After the court is closed, the case data shall be kept and filed.

Step 1: Log in and create a trial system.

Step 2: Download evidence and transcripts.

1. Reservation information: you can view the meeting information after the meeting is created, including the meeting name, scheduled time, meeting time, names of participants and other information.

2. Download transcripts and videos: transcripts can be downloaded after the case is closed, and trial videos can be downloaded 24 hours later for filing case information.

Internet trial prompt

1. How do the parties use the applet?

A: Search for "Yunting" in the WeChat applet, and authorize the login, or download the "Trial" APP client to log in.

2. Can’t you see the case when the applet logs in?

A: The mobile phone number bound by WeChat must be the same as the mobile phone number of the party when the trial was created.

3. What do I need to prepare for using the Internet to hold a court session?

A: Judges need to prepare computers with audio and video capabilities (such as laptops); The parties can use a computer with audio and video capabilities, or download the "trial" APP and WeChat search "Yunting" applet through their mobile phones to participate in the trial. Apple does not support the APP session for the time being.

4. A court account creates multiple courts. Can these cases be held at the same time?

A: An administrator can apply for multiple trial meetings at the same time; Multiple courts can hold sessions at the same time, regardless of account creation.

5. What should I do if the following error occurs when installing the client?

A: Just download the. NET version NET4.5.2 and install it.

6. What is the resolution recommended by the client?

A: 1920*1080, 1600*900, 1366*768.

7. Can a judge log in with the APP?

A: At present, judges can’t use the APP to log in, because judges have many operating functions and the operating experience on the APP side is not good.

8. How to deal with the howling when the judge and the clerk are together during the court session?

A: Judges and clerks use headphones; Or turn off the computer sound of the clerk.

9. How to increase the number of judges in the collegiate bench?

A: At present, the computer judge client only supports one judge to log in, and judges and people’s jurors can log in through the people’s jury computer client to participate in the trial.

10. Will it become full screen after opening the judge or client?

A: At present, in order to ensure the best display mode of video images at 16: 9, you can switch to the desktop through Win+D.

11. What if the client can’t hear the sound?

A: The pinion icon in the upper right corner is the function of setting video and audio, and selecting the appropriate output device.

12. Why did clicking on the opening prompt expire?

A: I can’t enter because the opening time of this session has passed. If the trial process exceeds the end time, the meeting will not be forced to end.

13. Why can’t I see the video after the court is closed?

A: The video will be generated uniformly at night, and you can view and download the video the next day. Note: Because the storage space is limited, please download the backup video within one week after the trial, otherwise the video will be deleted!

14. Why can’t you see or hear the video and voice of the clerk?

A: The clerk doesn’t need to speak in court, so the video and voice of the clerk are not provided for the time being.

15. Does the transcript support importing?

Answer: Import is not supported at the moment, but copy and paste can be supported.

16. Do you support batch uploading?

A: At present, batch upload is not supported, only single upload is allowed.

17. After uploading the evidence, others can’t see it?

A: Sometimes the display is delayed due to network instability.

18. Do mobile phones have to download and view evidence materials?

A: At present, mobile apps and applets need to download and then view evidence materials, and direct preview is not supported.

19. What is the scope of application of the function of giving evidence and cross-examination?

A: At present, only picture evidence can be circled, and word and pdf do not provide this function; Only when the parties and judges use the PC client can they use the circling function. Apps and applets do not support the circling function.

20. What file formats are supported for uploading evidence in Internet court trial?

A: Picture formats are png and jpg;; Video format MP4, audio format MP3;; Document format word, pdf

21. Can a judge take notes?

Answer: A judge can take notes through the function of obtaining the permission of taking notes. After the judge returns the permission of taking notes, the clerk can continue to take notes.

22. The words "speech recognition" are indicated on the transcript, but is there any speech recognition function?

A: The current version does not have speech recognition function, and relevant prompts will be blocked later.

23. Can closed cases be deleted?

A: Evidence, transcripts, videos and other data have been generated in closed cases, and they are not allowed to be deleted at will. If it is a test case data, you can contact to delete it.

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Laohekou city people’s court

Original title: "Go to court without leaving home", this set of online trial guide is useful for everyone! 》

Skin ulceration! It’s contagious once it’s touched? Parents: I just went to …

  In hot weather

  Can soak in the water and have fun with it.

  It is one of the few projects to relieve summer heat.

  Although playing with water is enjoyable.

  But if you’re not careful, you may

  Play yourself into the hospital.

  Doctor’s reminder

  Pay more attention to playing with water in summer.

  Otherwise, the end of playing with water may be dermatology

  01

  Return from playing with water

  Covered with purple pustules.

  A week ago, the 3-year-old fruit was held by her family and came to the children’s dermatology department of Hangzhou First People’s Hospital.

  Bu Zhangyu, deputy director of dermatology in the first hospital of the city, saw the fruit after the chief physician opened his clothes.There are huge purple pustules on the body and legs. These pustules are densely packed together, which is particularly conspicuous and has a low fever.

Skin ulceration! It's contagious once it's touched? Parents: I just went to ...

  According to Guoguo’s mother, she took Guoguo to a temporary building next to her home a week ago."water paradise" to play with water.

  Soon after I got home, I found some red pimples on my legs. I didn’t take them seriously at first, so I put on some calamine lotion that I used to have when I was allergic to skin.

  But the next day, she found outThere were more and more erythema and blisters on the body and thighs of the fruit, which soon turned into blisters and started to burn, so I quickly took the fruit to see a doctor.

  After receiving the consultation, Bu Zhang made a detailed examination of the fruit and found that most pustules had festered.It was preliminarily determined that he had "impetigo".

  In order to further clarify the cause, the fruit was examined by blood routine and pus culture. The results showed that:"Leukocytosis" and "a lot of Staphylococcus aureus" confirmed that the fruit suffered from impetigo.

  Fortunately, after 3 days of symptomatic treatment, his body temperature returned to normal, and after a week of reexamination, his skin lesions also recovered obviously.

  02

  This pathogen is easy to hide in

  In public places to play with water

  impetigo herpetifomisIt occurs in children aged 1-7 with relatively low immunity and is an infectious disease.Often in the sweaty and sultry summer and autumn seasons, it is generally direct or indirect contact with patients with impetigo, leading to pustules.

  Because impetigo is contagious, it is prone to occur in exposed parts such as head, face and limbs.

  In the case of Guoguo, it is very likely that the disinfection of the area where the water is played is not thorough, and in addition, in summer, there are fewer clothes and more exposed parts, which just happened to be played by people with this kind of bacteria, and it may be infected like this.

  03

  It’s cool to play with water.

  But not for everyone.

  "Summer is the high season of skin diseases, and there are not a few patients who suffer from skin diseases because of improper playing with water." Bu Zhangyu said that skin diseases caused by bacterial infection, such as impetigo, can be transmitted upon contact after ulceration. For example, if the skin is allergic at ordinary times and the skin barrier is damaged, it is more likely to be infected.

  In addition,Fungal infections of the skin layer, such as tinea cruris, tinea pedis and onychomycosis, which are common in summer, are also easily transmitted through slippers and towels.

  In summer, when playing with water, the skin will be in a hot and humid environment for a long time, which will aggravate some original non-infectious skin diseases, such as atopic dermatitis and eczema, which are common among children.

  There are also adult psoriasis (psoriasis) and so on, which are not suitable for long-term soaking in water. Recently, there are many people who get sunburned because of playing with water. Many people think that people will not get sunburned if they soak in water, but they don’t know that the refraction and scattering of light in water are more serious, so it is easier to get sunburned if they swim without protection.

  Doctor’s reminder

  Pay attention to these aspects when playing with water in summer:First of all, don’t play in the polluted water.

  Secondly, we should avoid wearing wet clothes for a long time.Wash and dry your body in time after playing with water, so as not to give bacteria a chance to grow.

  In addition, forPeople who already have infectious skin diseases such as impetigo and fungal infection should try not to go into the water to avoid infecting others.

  Xiaobian said

  Remind parents

  When taking children to play with water

  Be sure to keep your eyes open all the time.

  Look after the children

  Don’t chat and play with your mobile phone.

  Don’t let the children leave your sight.

[Editor in charge:

]

Seven points of longevity and health Chinese medicine teaches you how to keep in good health.

Editor’s note: With the improvement of living standards, health has become our most concerned topic. What is healthy food? How to prevent physical diseases in life? This has become the focus of attention. People’s Health Network launched the column "Jintai Health Park" to take stock of the most healthy lifestyle for you every week and take you into the health park.

There are five decisive factors for human health, and seven points for longevity and health.

According to research, although many studies show that people’s natural life span can reach more than 100 years old, most people can’t live this age for various reasons.

There are five major determinants of human health: parental inheritance accounts for 15%, social environment accounts for 10%, natural environment accounts for 7%, medical conditions account for 8%, and lifestyle accounts for 60%, which almost plays a decisive role.

There are seven main points for a long and healthy life:

1 Be sure to eat 3 meals;

2 Be sure to sleep for 8 hours;

③ Exercise for half an hour every day;

(4) Laugh every day and be healthy physically and mentally;

⑤ Be sure to defecate every day and expel toxins;

6. Be sure to have a harmonious family;

All landowners don’t smoke, don’t drink, and walk every day.[detailed]

Beginning of autumn has just passed the summer heat to cool down, and Chinese medicine will teach you how to keep fit.

After beginning of autumn, the influence of cold air will be gradually strengthened, activities will tend to be frequent, the temperature will drop obviously, the temperature difference between day and night will increase, and there will be "one autumn rain and one cold".

Just after beginning of autumn, from the point of view of disease prevention and health care, we should take precautions against "cold", pay attention to strengthening cold-proof exercise and improve cold-resistant ability, so that we can adapt to the climate environment when strong cold air and winter season come, and avoid inducing or aggravating diseases due to meteorological reasons, such as influenza, tracheitis, pneumonia, rheumatoid arthritis and various cardiovascular and cerebrovascular diseases.

The ancients said: spring covers autumn and freezes, and no miscellaneous diseases are born. After beginning of autumn, we should correctly understand "thin clothes to keep out the cold", don’t add clothes and pants immediately when the temperature drops slightly, and cover yourself up. Instead, we should add clothes as late as possible, wear short-sleeved shirts, try not to wear long sleeves, wear single clothes and try not to add coats.[detailed]

Several bad habits hurt blood vessels the most.

Smooth blood vessels are the foundation of human health, and different living habits will have a great impact on blood vessel health. To protect blood vessels, it is best to understand the bad habits that damage blood vessels in life. Bad eating habits can do great harm to blood vessels.

Long-term irregular diet, overeating, thick oil and red sauce, high oil, high salt, high sugar, and more meat than vegetarian will all lead to excessive intake of nutrients. Excess lipids will not only deposit on the blood vessel wall to block blood vessels, but also increase blood viscosity, which is easy to cause thrombosis. Therefore, it is recommended to eat seven full meals, eat less grilled and pickled processed foods and fried foods, and eat less meat and more vegetables to avoid excessive fat intake.

Long-term smoking can lead to obvious atherosclerosis. Cigarettes contain many harmful substances, such as nicotine, carbon monoxide, oxygen free radicals, polycyclic aromatic hydrocarbons and butadiene, which exchange with the gas in blood through alveoli and reach blood vessels, interfere with fat metabolism in blood, destroy vascular elasticity, damage vascular endothelium, and lead to the occurrence, development and thrombosis of atherosclerosis.[detailed]

Four ways to make up the yang at the end of the day and raise the back.

The dog days are the best time to treat winter diseases in summer, and the most important thing to get rid of cold evils in the body is to replenish yang qi, and to replenish yang qi, you must raise your back more! Now that we have entered the last stage, it is better to grab the last stage to support our backs.

The reason why we have to raise our backs is because according to Chinese medicine, our backs are yang and our bellies are yin. As long as the back is well maintained, it can make the back of the human body glow and generate a steady stream of energy. Because the yang meridian is basically distributed on the back of the human body, the spine is the main meridian of yang, and the meridian is the "sea of yang meridian", which controls the yang of the whole body, and the operation of yang of the whole body is all related to it.

On both sides of the spine are the bladder meridian of Foot-Taiyang, and the points on the back of all zang-fu organs are on the bladder meridian of the back. These points are channels for running qi and blood and connecting zang-fu. Stimulating these points can invigorate yang, harmonize qi and blood, and restore the functions of zang-fu. It can be seen that the back of human body is a very important part, which plays an important role in regulating visceral function, reconciling yin and yang and prolonging life.[detailed]

A brisk walk of 6,000 steps is enough.

Walking is the most affordable way of health care. A few days ago, researchers at Stanford University in the United States analyzed the activity level of residents in 46 countries and regions around the world based on the number of walking steps per day. The results show that Hong Kong, China and Chinese mainland are the top two favorite places to go.

It should be reminded that although walking exercise is good, it should not be excessive. Lu Yuanzhen said that modern people are polarized in sports. Many young and middle-aged office workers are used to driving, and the amount of exercise drops sharply, so that their physical strength is weak and their weight rises; Others are keen on taking steps every day and ranking, which leads to excessive exercise.

In order to be healthy, you have to walk 10 thousand steps every day, but this 10 thousand step also depends on the situation. If you walk slowly, including sporadic walking every day, 10,000 steps of exercise is acceptable, but if you choose to walk quickly, 6,000 steps a day is enough.[detailed]

Some traditional Chinese medicines are harmful to the liver if abused.

Some people think that Chinese medicine has no toxic and side effects at all, and even is abused as a health care product. Generally speaking, there are two main mechanisms of drug-induced liver damage: one is the direct toxicity of drugs and their intermediate metabolites to the liver; The second is the individual’s specific reaction to drugs. The first one is mainly related to the type and dosage. The second is mainly related to physical fitness. In life, we should pay special attention to liver injury when using the following drugs.

Polygonum multiflorum Thunb. Polygonum multiflorum Thunb. purchased or collected by itself may contain chrysophanol, an anthraquinone derivative, if it is not processed. If it is abused without authorization, it will have certain toxicity to the body. The most important manifestation is liver damage and intestinal congestion.

Senna leaf When constipation occurs, many patients will choose senna to treat it themselves. If it is taken in excess for a long time, it will metabolize anthrone-like active products in the intestine, which is easy to harm the liver. It is also not suitable for those who often have cold-aversion, warm-liking, loose stools, etc.[detailed]

☆ Wonderful review ☆

The life span of blood vessels determines the life span of people. "Skipping food after noon" is very harmful.

The secret that running can prolong life is not reliable.

Are you a long-lived face? How to prevent cancer with six constitutions?

Hip is an important health area. Three cups of tea can reduce blood fat.

What do you eat for health in summer? Eat less than one third and live more than 20 years!

Bad habits make moisture-ridden. How to get rid of moisture in the body in summer

Chinese medicine family rules forbid touching cold drinks. Shouldn’t Chinese medicine be used for health preservation in summer?

See a doctor, remember nine don’t pit the elderly’s health misunderstanding.

Often eat sweet potato leaves to delay aging. Is it too thin for the elderly to live long?

 

Safety "no holiday", all-round inspection of Daligang Town in Yiyang to build a safe defense line

Wechat picture _20220502125554.marked.jpg

Daligang Town, Taojiang County, Yiyang City held a special meeting to plan and deploy the comprehensive improvement action of safety production.

Red Net News Reporter Liu Zhixiong Correspondent Yang Caizhen Zhang Ruimei Yiyang Report

Recently, the rescue situation of the collapse accident of Changsha residents’ self-built houses has touched the hearts of countless people and sounded the alarm for everyone. Safety is no small matter. In order to effectively protect people’s lives and property, Daligang Town, Taojiang County, Yiyang City urgently launched a comprehensive rectification campaign for safety production during the "May 1" holiday, striving to prevent delays and build a safe line of defense.

On April 30th, all the team members of Daligang Town and relevant departments canceled their vacations, held special meetings, set up special classes, worked out plans, and made arrangements for the construction field, epidemic prevention and control, road traffic, flood control and drought relief. Led by the town emergency office, ten professional groups of the safety production professional committee jointly conducted inspections in three groups, including the law enforcement brigade, the municipal supervision office and villages (communities), covering key industries such as construction mines, dangerous chemicals, construction and fire protection, ensuring that a problem is found and a place is rectified immediately.

Wechat picture _20220502125617.marked.jpg

The staff is checking the fire control facilities.

Ensure that you live in peace of mind, and strictly check both new houses and old houses.

Fire safety is directly related to whether people can live with peace of mind. On the afternoon of April 30th, Wang Feng, secretary of the Party Committee of Daligang Town, once again came to Zhujiacun and Lishanhe nursing homes. He was worried about the two failed fire extinguishers found during the fire safety inspection the day before yesterday. "It’s a good thing you found it after inspection. It’s a bad thing if you find it can’t be used when you need it!" The person in charge of Zhujiacun nursing home said that after the inspection found that the fire extinguisher was invalid, he contacted the previous fire extinguisher supplier for the first time and replaced it in time to be prepared.

On May 1st, Daligang Town organized villages (communities) to build houses and held a deployment meeting for the special rectification of safety production in the construction field. Next, the town will conduct a safety hazard investigation on 26,137 houses in the town, and adopt the "four packages and one" responsibility system for 16 houses with safety hazards in the previous investigation, and "look back", requiring villages (communities) to report the situation once a day and set warning signs for dangerous and abandoned houses; Strictly implement the "three-on-the-spot" policy and the "four-package one" responsibility system for building safety in rural areas to ensure that the quality of new houses can pass the customs and live with peace of mind.

In this comprehensive rectification action of safety production, Daligang Town also inspected seven liquefied gas supply stations within the town’s jurisdiction to ensure that all stations implemented standardized gas management as required.

Wechat picture _20220502125608.marked.jpg

The staff supervises the epidemic prevention and control work at the expressway intersection, and needs to check the health code and travel code when leaving the Daligang toll station.

Ensure that travel is relieved and epidemic prevention is smooth.

Holidays are the peak time for returnees and the masses to travel. It is necessary to ensure the safety and smoothness of roads and prevent and control the epidemic at the same time, so that the masses can travel with ease.

There are 8 big ferries and 1 high-speed exit in Daligang Town. Liu Xiangbin, deputy secretary of the town party Committee and mayor, said: "Safety is the first requirement for the ferry to sail safely and be a good ferryman for the masses." Expressway service stations are the primary line of defense for epidemic prevention and control, and police stations, traffic police, traffic control, health centers and other departments should do a solid job in joint prevention and control. "

"may dayDuring the period, at least two volunteers will be on duty at Daligang Town Expressway Service Station, each important section and persuasion station to ensure smooth roads, and three leading cadres will be on duty every day to implement "three shifts" for 24 hours. Normalization of epidemic prevention and control in various departments, units and villages (communities).

The Epidemic Prevention and Control Office conducts daily epidemic prevention and control supervision, keeps abreast of the dynamics of returnees in villages (communities), strengthens the control of key personnel, and ensures that the responsibility of "five guarantees and one" is implemented to people. At the same time, all the township and village cadres sank into the villages, mobilized those who had not been vaccinated to actively vaccinate, and widely publicized the epidemic prevention work.

12.marked.jpg

The staff is inspecting the reservoir before the flood season.

Care must be taken in production to prevent fire, flood and negligence.

In the flood season, the flood control work is gradually "clockwork", and Daligang Town will start the annual flood control training and drills to check the leakage of flood control materials and ensure the necessary needs of flood control.

The town has supervised each village to post flash flood geological disaster emergency cards. At present, two town-level hidden geological disaster points and four county-level hidden geological disaster points in the town have posted "two cards and one book" and set up warning signs nearby. In this operation, Daligang Town will once again conduct special inspections on potential safety hazards and flood prevention and preparation for 18 small reservoirs and 59 backbone mountain ponds, and rectify problems in time to ensure safety during the flood season.

When summer comes, forest fire prevention must also be vigilant. At present, the leading group for fire prevention and extinguishing has been set up in Daligang Town, and the town-level emergency firefighting team is composed of nearly 30 government functionaries. Eighteen forest rangers have been identified, and a volunteer emergency team has been set up in each village (community). The town emergency office has established a 24-hour duty system including full-time (part-time) firefighters to ensure that the fire is known at the first time.

"May Day" holiday, safety "no holiday". Wang Feng said that the special campaign of safety inspection will last for one month, during which the safety situation in key places such as residents’ self-built houses, crowded places, dangerous chemicals, road traffic, construction, non-coal mines, metallurgical industry and trade, special equipment, fireworks and firecrackers and gas fields will be strictly investigated.

Record the whole process of 2009 Fox upgrade calibration software.

  On May 31st, 2010, it was officially announced that 236,643 09 models would be recalled due to the possibility of flameout at low speed. In this matter, we contacted Changan Ford according to the recall maintenance items that netizens are concerned about and the problems that need time and later use, and recently went to a 4S shop in Changan Ford in Beijing to make a full report on the handling method of Fox recalled vehicles, and consulted with the after-sales staff in the store. In the following, I will give you a detailed report.


Home of the car


  This recall of’ 09 Focus will mainly upgrade the version of PCM electronic control program for vehicles to improve the problem of flameout under low load. TCM (Transmission Computer) system will also be upgraded for automatic transmission models to improve the unstable speed when parking or starting.


I. Record of relevant data before vehicle maintenance


  From the discussion in the current domestic auto forum, we know that Fox owners are mainly concerned about whether they will increase the idle speed of vehicles to control the flameout when upgrading the calibration software. Will fuel consumption increase? This time, the editor dedicated his own car (09 Focus 1.8AT models produced in March 2010 within the scope of recall) to do this "meat cutting test".


Home of the car


  The above picture shows the idling situation of parking P gear before upgrading before entering the repair shop. It can be seen from the picture that before the upgrade, it was 800 rpm.


Home of the car


  From the signboard on the left side of the vehicle, you can see the owner registration information reserved every day. According to what we learned from the after-sales staff of the 4S shop, it is necessary to wait until the end of July for the recall. In addition, when asked about the process to be handled in the recall, the after-sales staff said: We will clean the recalled vehicle festival first, and then upgrade the calibration software. It is estimated that the whole process will take one and a half hours.


Home of the car


  After entering the maintenance workshop, the basic inspection of the vehicle should be carried out first, such as whether the lights are on normally, the chassis situation and the basic inspection of the engine.


Second, the maintenance process records


1. Clean the throttle valve


  When the technicians began to deal with the faults of the recalled vehicles, we first recorded the starting time of the whole process: 16: 05pm.


Home of the car


Home of the car


Home of the car Home of the car


First of all, according to the process, to clean the throttle, the technician is removing the throttle.


Home of the car


  As can be seen from this picture, the removed throttle has a thick yellow layer. (Little knowledge: Too much carbon deposit in the throttle will affect the intake efficiency and normal combustion effect, thus causing problems such as unstable idle speed of the vehicle, weak acceleration of the vehicle, increased fuel consumption and slow response of the throttle. )


Home of the car


Home of the car Home of the car


  To start cleaning the throttle, we need to use a special throttle cleaning agent. According to our knowledge and technicians, we need to use half a bottle of cleaning agent every time and dry it with a cleaning cloth.


Home of the car


Home of the car


  When the throttle cleaning is finished, record the completion time of throttle cleaning: 16: 22pm. Judging from this time, it takes 17 minutes to clean the Fox throttle.

Professor Li Zhuofen’s speech: How to spend all the hardships in the "epidemic" environment

Professor Li Zhuofen's speech "How to spend all the hardships in the" epidemic "environment" (photo source: Fenghuang. com Buddhism)

The following is a transcript of the speech:

Moderator Zeng Yiyi:Hello everyone! I’m Zeng Shuyi, the host of Phoenix Satellite TV, and welcome to the 12th lecture on Buddhist culture of the 6th Guanyin Cultural Festival, "How to spend all the sufferings in the epidemic area". We all know that life is bitter, but in this COVID-19 epidemic, people feel different levels of suffering. There is the fear of death after being infected, the pressure of fear of being infected to others after being diagnosed, and the fact that the epidemic has affected work, so how can we get through the pain of the immediate predicament? This kind of physical suffering and mental suffering is particularly obvious in this epidemic.

It has been a whole year since the outbreak of the COVID-19 epidemic. Over the past 300 days, we have encountered the greatest threat in our lives, that is, the troubles that Covid-19 has brought to human life and life. Although for thousands of years, human beings have been suffering from various disasters in heaven and earth, as well as epidemics, but we have spent it again and again, but human beings are forgetful. And this epidemic for us, what do humans remember? How to spend all the misery? Now, let’s invite Mr. Li Zhuofen, academician of China Academy of Engineering, former vice-president of HKU and professor of lectures, to give us a lecture today on "How to spend all the hardships in an epidemic area", and please welcome the president.

Professor Li Zhuofen:Hello everyone! Happy new year! Just after 2020, many friends feel that 2020 is a very extraordinary year; The Covid-19 epidemic has had a great impact on the whole world, a great disaster. If we look back at the history of the development of human society, we can see that in the past 2000 years, this virus and this epidemic occasionally occurred. Like the book we are reading now, there are detailed statistics on the impact of plague on human society. You can see that in the past 2000 years, there were often various plagues and epidemics that affected the development of human society.

For example, in ancient Rome, measles and smallpox killed almost 5 million people. You can also see that this plague affected different countries in different historical stages, from Europe to Latin America, to China and even to the whole world. The virus may be related to measles and smallpox, typhoid fever, plague or influenza virus.

Last year, pneumonia was mainly caused by the new coronavirus. If you look at the chart (on the right), there are quite a few people killed each time, some are millions, some are tens of millions. In the course of our human history, this plague also happens from time to time. In the process of the development of our human society, besides the plague, there are some other natural disasters, such as the well-known earthquake.

Take a look at our chart. Earthquakes also have a great influence, so in Europe, in the era of the Roman Empire, in the Middle East and even to China, and even to Peru and Southeast Asia in South America, the influence is quite severe, and the number of people killed each time ranges from tens of thousands to hundreds of thousands.

If we compare the plague with the earthquake, there is a difference. The plague does not pass in a day or two. Take the Covid-19 in front of us (for example), everyone has been affected for a very long time, almost one year has passed. What about the earthquake? It’s fierce, but it usually passes at once. Of course, its impact (very serious) and the reconstruction process will take time.

However, this kind of natural disaster, like an earthquake, has less impact time than the epidemic. Speaking of natural disasters, apart from earthquakes, we all know that floods often occur in our human society, and this one has also occurred since the ancient Roman Empire. Floods in the Yellow River and the Yangtze River in China are also frequent, as are floods in other countries, and the impact of floods is also very severe. Some floods killed tens of thousands of people, and some affected millions of people. Floods are also relatively short-lived, usually lasting a few weeks or a month. Of course, the process of reconstruction is still relatively long, but it doesn’t take longer like a plague.

We talked about these plagues, earthquakes and floods. How can our human society face these disasters? How to prevent these disasters? Let’s take a look at this plague epidemic. Generally, what we can do is to work hard to develop a vaccine, develop this vaccine, and then widely apply it. If we can widely use this vaccine, we can have an effect of preventing the spread of infection.

Looking back on vaccines against plague, we can see that smallpox was introduced in 1796, cholera was introduced in 1879, and others like typhoid, plague and measles. If you look at the time when this vaccine was developed, it actually appeared in the past about 200 years. This is the development of times medicine or modern medicine.

After we had these vaccines, they were widely used, and the threats of smallpox, cholera, diphtheria, typhoid fever and plague gradually decreased. It is not completely zero, but it can be controlled. Today, we are not too worried about the impact of smallpox on the whole human society, because we have a good vaccine, and so are other epidemics.

Modern medicine has made great contributions to controlling these plagues, but it has been more than two hundred years. We are now facing Covid-19, and we all know that in the past few weeks, different countries have made great efforts to develop this vaccine, and then it has been widely used in all aspects of society. They attach great importance to the development of this vaccine, mainly because of the serious impact of Covid-19 on the whole social economy. If this vaccine is not widely used immediately, it will be even worse for the economic situation of these countries.

Everyone knows that it was Britain that first used vaccines and applied vaccines. This vaccine was first used in Britain, and it has been used for almost several weeks now. The National Health Service says that more than one million people are vaccinated every week, so are other countries. We see that it is widely used in Russia, the United States, the Middle East and Latin America, and even the vice president and president-elect of the United States have been vaccinated.

Experts in the medical field expect that after the vaccine is used, our life will gradually return to normal. This is the opinion of our frontline experts. For example, professors from the medical school of the University of Hong Kong estimate that the epidemic situation will be gradually controlled in the second half of this year after the vaccine is widely used. We can’t return to zero immediately, but most of them can be controlled, and life will gradually become normal. Maybe in another year, the situation will be greatly improved. Of course, there may be some occasional outbreaks.

Our country has also made a lot of efforts in vaccine development. Now China’s vaccine is not only widely used in China, but also very popular in many countries around the world. There are hundreds of thousands of people, many of whom have been vaccinated, and there is no special infection. It will definitely be of great help for the future life to gradually become normal.

Looking back, what happened to Hong Kong? Director Chen (Food and Health Bureau of the SAR Government) said that he hoped that Hong Kong people would be widely vaccinated in the second half of the year, and he was also prepared to vaccinate all Hong Kong people with COVID-19 vaccine free of charge. It is estimated that the situation will gradually improve in the second half of the year, and society will gradually return to normal, so next year will be even better.

I just talked about the situation in Covid-19 and mentioned other natural disasters. How do we deal with other natural disasters? Earthquakes just mentioned, such as Wenchuan earthquake and Tangshan earthquake, have a very serious impact on human beings and the country. As a scientist, I should tell you truthfully, if you ask me, when and where will the next earthquake happen? Actually, we don’t know, really. Does that mean that I don’t know where the next earthquake will happen and how big it will be, so I’ll just sit and do nothing? That’s not true either.

We can use other methods to reduce the impact of earthquakes on our human society. How can we reduce it? This kind of work is called disaster reduction and prevention, reducing its disasters. Although we can’t accurately predict the coming earthquake, we can reinforce houses and various buildings. Reinforcement is to keep them from collapsing when the earthquake comes. Although the impact of the earthquake is still there, it will not collapse, that is to say, if we strengthen the house and improve its seismic standard, then it can reduce its disasters.

There are many houses in the earthquake zone now. Where is the earthquake zone? Japan, China, Tangshan and Northwest China, California, USA. We can use these methods to strengthen the house. Here are some concrete examples. This is some methods of earthquake-resistant building design. In fact, there are several methods. In our earthquake-resistant work, one of them allows us to design the house to be more elastic. It is more elastic. It can shake around during the earthquake, but it will not collapse. This is a method called "earthquake resistance", which means it can withstand this earthquake.

The second one is called "earthquake suppression". Earthquake control means controlling the earthquake, using steel bars and various reinforcement methods to control the amplitude of the earthquake, which is also a design scheme. Another scheme is called "earthquake-free". What does it mean? It’s the foundation, the foundation, which collects the seismic energy of earthquake waves. It’s a bit like driving. The car has a vibration control device. We also put this device on the building foundation, which can also reduce the vibration amplitude. That is, I can’t accurately predict when the earthquake will happen, but I can minimize the impact of the earthquake and prevent it from causing a major disaster.

Everyone knows that there are not many earthquakes in Hong Kong. Hong Kong is not an earthquake zone. Although there are no earthquakes, there are landslides. Landslides are called "landslides" in Hong Kong and "landslides" in the Mainland. Landslide and debris flow all refer to the same thing, that is, the hillside slides down. For example, in 1972, there was a big landslide on Baoshan Road next to the University of Hong Kong. When the landslide slipped down, it washed down a building with it and bumped into a part of the building below. Think about it, the impact of this disaster is still quite great. At that time, 67 people were killed, (known as the "618 disaster"). On the same day, in addition to the landslide on Baoshan Road, there was also a landslide in Xiumaoping, Kowloon. At that time, there was heavy rain, and 71 people were killed in Xiumaoping landslide. Together, almost 140 people were killed. This kind of disaster also happened frequently in Hong Kong that year.

In the mid-1990s, there was a team in the University of Hong Kong, and I was in charge of this work. We developed a method to reinforce and stabilize the hillside, which was called soil nailing. Soil nailing is called "soil nai" in English. At that time, we had several doctoral students engaged in various research work, some of them were indoor research, and some were doing various field experiments in the wild. We have done a lot of experiments on the slope of a road in Ma ‘anshan, and also some experiments on field soil nailing to strengthen the slope in Kadoorie Farm near the rural areas of the New Territories, to ensure that this soil nailing reinforcement method is effective and usable. After we have done a good job in this field, the method of soil nailing reinforcement has been widely used.

How to do it? First, drill a hole in the hillside, put a steel bar in it, then drill a hole to fill the surrounding space with cement, and then put a nail head on each soil nail. After the soil nail reinforcement, I tied the whole hillside together. The soil and rocks on this hillside are bound together, which plays a reinforcing role, and this hillside will not slide down. After it is reinforced, it will not slide down when it is tied together. I can also plant grass and trees outside the slope. I have a safe slope, which is safe after reinforcement. At the same time, my planting grass and trees also has an environmental protection effect. When you look outside, you can only see my grass and my trees, but you can’t see my soil nails, which means safe and environmentally friendly. This is also a creation of Hong Kong.

This method of soil nailing has been widely used in Hong Kong for more than 20 years. Driving soil nails into all slopes, this is the method of soil nailing reinforcement, and this is the whole set of tools. In the past twenty years or so, tens of thousands of slopes in Hong Kong have been reinforced by this method. After reinforcement, it looks like this. You see the grass, you see the tree, you can’t see my soil nails, because the soil nails are hit inside and you can’t see them. Before using this method, we temporarily put some cement slurry on the slope to separate the rainwater, but this method looks very environmentally unfriendly. In the 1980s, many people wrote to newspapers saying that this method was not environmentally friendly. Later, we adopted the method of soil nailing and greening, and it became like that (on the right).

At present, tens of thousands of slopes in Hong Kong are planted with soil nails (reinforced), which is done everywhere. This has been done for more than 20 years, and this method has been adopted everywhere. I think if you recall, in the early years, landslides often caused casualties in Hong Kong. In the past ten years or so, you have rarely heard this kind of thing, that is, you have never heard of how many people were killed in landslides. This story has been rarely heard, basically not. Over the past decade or so, there have been basically no casualties caused by landslides and landslides. Even this method is quite useful. This method was first developed in Hong Kong. Now in China, in other countries like Britain and Canada, this method of soil nailing is used everywhere, and then planting grass and trees is an environmentally friendly method. That is to say, the landslide disaster in Hong Kong in the past, now we can basically control and solve this problem through this soil nail reinforcement and this safe and environmentally friendly method.

Another natural disaster that everyone is familiar with is flood. China used to have frequent floods, and it is a big country with many floods in the Yellow River and the Yangtze River. If we look back, why are there frequent floods in China? In fact, there are two main reasons, one is that heavy rain has caused disasters, and the other is heavy rain. In July and August of the summer of 2020, there were several weeks of heavy rain in the southern part of China, which was a disaster caused by heavy rain.

Another important reason is that we have needed a lot of wood for building houses for thousands of years. People need wood to build a house, and the emperor also needs a lot of wood to build a house. Qin Shihuang built "Epang Palace". How do you write Du Mu’s poems? "A Fang goes out, Shu Shan is bald" is bare "bald". That is, if you build a "Epang Palace" of Qin Shihuang and cut down all the mountains (trees on it) in Sichuan, then the hillside will become bare without planting any more. It’s bare and the vegetation is gone. If it rains a little, it will wash all the sediment on the hillside into the river below. After rushing into the river, the water generally flows at a higher speed in the upper reaches of the river, that is, it flows very fast, and the sediment will not settle.

In the middle and lower reaches, the Yangtze River reaches the Jianghan Plain in Hubei, the Jianghuai Plain in East China, and the Yellow River reaches the North China Plain. In the plain area, the velocity of water is relatively low, and the sediment will settle down when it flows slowly. When the sediment settled, it silted up the channels of the Yellow River and the Yangtze River, and the sediment piled up on the riverbed, slowly raising the riverbed, and after raising it, it was higher than the surrounding area.

Let’s take a look at it later. It is more than ten meters higher than the Yellow River in some places around, and the Yangtze River may be about 5 to 7 meters higher than the surrounding area. Because of this, there are often floods. Because the riverbed is high, when the rainstorm (coming), the water level of the river overflows the riverbank, and there is another big flood around it, which may be affected every time. There may be tens of thousands to hundreds of thousands of people killed. How can we face the threat of such floods?

We can’t avoid the rainstorm, even if it rains, you can’t help it. It will still rain, but we can use water conservancy projects to control and regulate the flow of rivers, which can be done. For example, in July and August last year, the whole southern region, especially Sichuan, had almost a year’s rainfall in two or three days. Not only did evening rain rise in the autumn pool, but all the rivers in Sichuan experienced a severe water rise. However, we can adjust the water levels in the upper reaches of the Yangtze River and the rivers in Sichuan through the Three Gorges Dam of the water conservancy project.

Through the Three Gorges Project, we will not let the flood suddenly flood into the Jianghan Plain downstream. What’s in Jianghan Plain? There are Wuhan and Jingzhou, all on the same plain. If this flood comes down, it will be terrible, and tens of millions of people will be affected. Through these water conservancy projects and the Three Gorges Dam, we control the flow, that is, we should stop it from rushing down immediately, and then release it slowly. When you put it slowly, control the flow under the condition of control.

I used to have many friends who lived in Wuhan. In 1998, when there was a flood in Huazhong University, almost 1 million people went to protect the embankment in Wuhan. This embankment is not only for ordinary people, but even the secretary and mayor went up and the Prime Minister came down to help. Everyone has heard about these situations. Last year, although it rained heavily in Sichuan for several weeks, the water level was quite high, and there were many flood peaks, but the flood peaks were also controlled by the Three Gorges Dam water conservancy project. It was slowly released step by step, and my friend who lives in Wuhan was also by the river, but he was enjoying the cool by the river, and he didn’t do any dike protection work. Even this water conservancy project can still work, and the flood peaks can still be safely spent.

More importantly, what our country has done in the past is that since the flood in China in 1998, we have rebuilt the mountainous areas in the west of China, that is, the vegetation forest areas in the upper reaches of the Yellow River and the Yangtze River. Rebuilding vegetation can (can) reduce soil erosion, reduce river sediment and improve the ecological environment. I’ll tell you later. I just mentioned that for thousands of years, due to the need of building houses and heating in winter, we often went to the mountains to cut down trees. After cutting, we didn’t plant them again. As a result, the vegetation on the hillside disappeared, and the topsoil was exposed on the surface. When it rained, the sediment was washed into the riverbed.

What about the result of cutting down trees? Almost all the trees in the western mountainous areas have been cut down. Before you traveled to the Loess Plateau, you would see the bare Loess Plateau, just like this. Sediment rushed into the river, and the sediment concentration in the river was relatively high. The Yellow River is even worse. Why is it called the Yellow River? In fact, many rivers in China have a relatively high amount of sediment, such as Hongshui River, Qishui River and Honghe River. Why do you call it red and yellow? That’s why its sediment concentration is particularly high.

As I mentioned just now, when the sediment rushes to the river channel, it raises the riverbed. The riverbed of the Yellow River is 13 meters higher than the surrounding ground. This means that the Yellow River is in Henan and in Kaifeng. There is a famous Kaifeng Tower in Kaifeng. You can see that the riverbed is more than 10 meters higher than the surrounding area. In this case, we call it "hanging river". It means that the river hangs in the sky, hanging in the sky.

The Yangtze River is not much better. This is a situation in the middle reaches of the Yangtze River, near Jingzhou. When you see Jingzhou, it is all above it. There is a Jingzhou levee, and there is a house below. The local people say that "people walk at the bottom of the river and water flows on their heads". This is called "Jingjiang Hanging River", and Jingjiang is the name of the Yangtze River in Hubei. The Yangtze River is called Chuanjiang in Sichuan and Jingjiang in Hubei, which are actually the Yangtze River. You see this situation, where is Jingzhou section? You see the land next to it, which is the middle reaches of the Yangtze River. After crossing the street, it is basically a plain area.

You can think about it, this river is above your head. If it rains heavily and the water overflows the embankment, it will definitely be another big flood. In the history of China, if you look at some records of the Ming and Qing Dynasties, there are often such big floods, and there are tens of millions of people (affected). This is a cross-sectional view of the north and south, and (the far right) is the Yangtze River. The red section of this topographic map is calculated in kilometers, and the other is in meters. But you can also see that the Yangtze River is protected by a riverbank, and the riverbed of the Yangtze River is about five or six meters higher than the surrounding area.

The same is true of Hanshui River, the largest tributary of the Yangtze River in Central China, and the same is true of Dongjing River, a tributary of Hanshui River. That is to say, the big rivers and riverbeds in China are generally higher than the surrounding areas, and they are all suspended rivers, and every time it rains heavily, there is a threat of floods. It is for this reason that many water conservancy projects have been built since the founding of the People’s Republic of China. Like the Three Gorges Project on the Yangtze River and the Xiaolangdi Project on the Yellow River, they can basically control and regulate the flow. When the flood peak comes, it controls the flow well to prevent the flood from leaking to the downstream great plains at once.

After the flood in China in 1998, it was Premier Zhu Rongji’s time. He discussed with you how to solve the flood threat in China for a long time. At that time, he adopted the suggestions of several academicians of the Academy of Engineering. At that time, I also took part in some work in this field. We suggested that we should not cut down trees in the middle and upper reaches of the Yellow River and the Yangtze River in the future, and rebuild the vegetation in the central and western regions and the forest areas in the mountainous areas in the central and western regions.

After 1998, the vegetation reconstruction project was started in the middle and upper reaches of the Yellow River and the Yangtze River. The vegetation reconstruction project is literal. We generally call it the "Green Long March", which is to rebuild trees in our mountainous areas from generation to generation. In the western mountainous areas, including the Loess Plateau and Inner Mongolia Plateau, many deserts and deserts have replanted trees for more than 20 years. If you go to the Loess Plateau today, you will see trees planted in many places, which is different from before.

After planting trees, the problem of soil erosion will be gradually reduced. There are trees on the hillside to hold all the sediment, so that the sediment will not flow to the river bed, thus reducing soil erosion. The sediment transport capacity of the Yellow River and the sediment concentration in the Yellow River water have greatly decreased in the past twenty or thirty years, mainly because trees have been planted, and soil erosion has been reduced after trees have been planted.

If you travel to the Yellow River today, if we can go back today, you can go to Hukou Waterfall. The water in the Yellow River is much clearer. The same is true of the Yangtze River, where the sediment concentration has dropped significantly. This was observed at a hydrological station in the middle and lower reaches of the Yangtze River, and the annual sediment discharge has obviously decreased significantly.

I just said that in the past few decades, trees have been planted everywhere in the "Green Long March", including in desert areas and the Loess Plateau. If you look at the national forest coverage rate, it has tripled from 8% in the founding of the People’s Republic to about 23% today. This is a very big growth. After planting trees, the whole ecological environment has gradually improved. According to the statistics of the United Nations, the annual increment of forest area in China ranks first in the world, while other countries combined can’t keep up with the increase of forest coverage in China. This work is very remarkable. Of course, it is the result of continuous efforts of generations, and its impact on the whole ecological environment is very clear.

Just now, we talked about plagues, earthquakes, landslides and floods. These are called natural disasters, and such natural disasters continue to occur. We live on the earth, and the earth is our home to settle down. The nature around us is beautiful, but it also has an impermanent story, whether it is nature or the earth. If we look back at history, after every disaster and plague, we human beings are born through robbery. After learning from one thing, looking back at the development process of human society, we have developed on the basis of constantly overcoming difficulties and disasters.

In the face of disasters and epidemics, we need to do a lot of disaster reduction and prevention work and anti-epidemic work. This mainly depends on scientific control of this plague, mainly on modern medicine. We are in this "epidemic" environment, like for a long time in the past. As human beings, we inevitably feel anxious. Therefore, in addition to doing a good job in epidemic prevention, disaster reduction and prevention, there is also a very important need for peace of mind. How to make us face these disasters more calmly is the need for peace of mind.

But how can we reassure everyone in a disaster and an epidemic? I suggest here that we can borrow some religious philosophy and humanistic care from our eastern civilization. For example, we can refer to it. Before the disaster last year, you may remember that there was an Asian financial turmoil about 20 years ago. The Asian financial turmoil also had a great impact on Hong Kong at that time. Let’s take this as an example. If you look at this kind of news in Hong Kong newspapers in those days, what kind of big stock market crash broke out, causing many shops to stop operating, and many people became negative assets. What is "negative assets"? That is, I borrowed money and went to the bank for a loan to buy a house. The house I bought may be 10 million yuan, and the bank may lend me 7 million yuan. When the Asian financial turmoil comes, the price of that house may drop to 5 million yuan, so the money I sold the house is not enough for the bank to repay the loan of 7 million yuan, which is what I mean. Many people commit suicide because they can’t stand it.

You may remember that in the face of this adversity at that time, we had an old gentleman, a master of Chinese studies in Tsung i Jao in his 90s. Rao Lao knew that many people in Hong Kong were very unhappy at that time, and he used his methods to reassure everyone and send them a blessing. He is a great scholar and a great calligrapher. He is the president of Hangzhou Xiling Printing Society. He wrote 260 words of Heart Sutra in calligraphy. You can see that every word of Prajna Paramita Heart Sutra is quite big. At that time, after he finished writing, he hung it on the wall, and every word was written in such a big size. He asked us to help him carve this 260-word Heart Sutra on 38 pieces of wood and put it in the Heart Sutra Simple Forest in Ngong Ping, Lantau Island. Now when we go to Ngong Ping, we will see the "Heart Sutra Simple Forest", and this is how the "Heart Sutra Simple Forest" came about.

Rao Lao also went to see the Heart Sutra when it was built. Why did he write this calligraphy of Heart Sutra? Rao Lao feels that you want to make people feel at ease. You can’t just say a few words and people will feel at ease. The best thing is for us to reflect on it and study it. A Buddhist sutra full of wisdom like Heart Sutra, from which you can set your mind at ease, was Rao Lao’s idea at that time.

Why do you say that? What is the magic weapon of the Heart Sutra? I’ll give you a supplementary explanation here. The Heart Sutra is actually not long at all. It is divided into two sections. The first paragraph is actually just a few words, very short. In the first paragraph, it is said that "when you look at the Bodhisattva, you can walk deeply like Paramita for a long time, and when you see that the five aggregates are empty, you will suffer all kinds of hardships". It is written in classical Chinese, which seems not easy to understand. If we use modern words, it’s probably like this. In the vernacular, it means "observing the Buddha". Who is the Buddha? Viewing from the Bodhisattva means representing the "Guanyin Bodhisattva" next to it. Why is he called Guanyin Bodhisattva and Guanyin Bodhisattva?

In fact, it is very simple. Buddhist bodhisattvas practice both compassion and wisdom. In Buddhist language, this is called "double luck of compassion and wisdom". Both compassion and wisdom are practiced at the same time and are used in our lives. Bodhisattva If he practices compassion, like Guanyin Bodhisattva, he practices compassion to help the poor, and he will help you solve your immediate difficulties whenever you need it. That is, when you hear that you need him, he will come to help you. This is (yes) hearing about it. So when he practices compassion, we call him avalokitesvara. It is when he hears the sound of salvation and shows compassion that we call him Guanyin Bodhisattva.

In addition to practicing compassion, he also practices intelligence. How to cultivate wisdom? He practices wisdom in deep meditation, that is, through deep meditation, he can observe everything in the world, and everything has its reasons, causes and causes. Is that everything will not happen for no reason, there are his reasons behind it, and it will not happen for no reason. He saw this truth, he realized this truth, he realized this truth. Realizing this truth, he can clearly find out the causes behind everything, and he can understand the reasons behind everything, and there is also a process of karma birth and death. That is, if this reason exists, it will happen; If this reason did not exist, it would not have happened.

Let me give you an example. Don’t say something as serious as this epidemic. It’s winter now, and it will be Spring Festival in two months. Spring, what’s wrong with spring? Spring is blooming! You see a tree with flowers growing. Why do flowers grow? It is spring that comes. There is sunshine, rain and dew, sun and soil, and these conditions are all met. In spring, the temperature is warmer and there is rain. Under this condition, the tree in front of us will grow flowers, maybe a peach blossom. We like peach blossoms during the Chinese New Year, and when we see them, we come out at that time.

Why doesn’t it come out in the middle of winter and December? It is the twelfth month of winter that does not have the conditions for it to bloom. After two months, spring has come, and spring blossoms are the conditions for flowering. Everything, including the flowering of a tree, has its conditions. With conditions, it will blossom, but without conditions, it will not. Of course, I can build a greenhouse, and that’s another way. Is a simple thing, like flowering, it needs flowering conditions, flowering conditions are sunshine, rain and dew will bloom, after this condition is gone.

So what does it mean to say "karma is born and died"? That is, if conditions permit, it will blossom; if conditions do not permit, it will not blossom, as simple as that. The epidemic is the same! A condition makes the epidemic appear, and it will be there. Earthquakes and natural disasters are the same! Natural disasters also have their reasons. If conditions change, it may not happen again. Then you understand that everything has its reasons and karma behind it, so you may face it more calmly.

For example, if I am a student and my exam results are not good, then I must be very upset. No (good) may also have a reason. Why didn’t I do well in the exam? Didn’t get into my favorite university? One of the reasons is that I may not study hard, or I can’t study properly, that is, I can’t read my book effectively (efficiently). You don’t study well and you don’t study hard, which is one of the reasons why you can’t get into the university and your favorite university.

You’ll understand when you find out the reason, and it doesn’t mean you just sit there all the time. Think about it, I didn’t study hard, so I should study hard next time. I study hard, I improve this condition, I improve this karma condition, then I study harder next time, and I can be admitted to my favorite university. That is to say, you understand the reasons behind everything. If you improve this condition, you can do better. This is the reason.

If we understand every situation, every epidemic situation and epidemic situation, we understand the reasons behind it, find out its reasons and find out the solutions, we can face it more calmly, and you will be more calm in your heart, so you will not be too upset and you will be able to tide over the difficulties. The meaning of "going through all the hardships" is to get through this difficulty. To get through this difficulty, you don’t just sit there, you just (want to) find out the problem and try to solve it. Solve it, and you will be able to tide over the difficulties. This is a short first paragraph of the Heart Sutra, which may only be more than 20 or 30 words. We call it "karma view", the most important truth of Buddhism, and write this "karma view".

If you look back at these words, it’s only 25 words. These 25 words are included, telling you that there are reasons and conditions behind every suffering. If you change this condition, you can solve the problem and you can "get through all the hardships". That’s what it means.

I just said that this is the "karma view" of Buddhism. According to legend, it is one of the two truths that Sakyamuni realized under the bodhi tree that year. The first one is called "karma view", which is the truth I just talked about in the first paragraph of Heart Sutra. Second, another important truth that the Buddha realized under the bodhi tree in those days was called "four truths view". Let me introduce the "four truths" here. In Buddhist language, the "four truths" are suffering, gathering, extinction and Taoism. If we use our modern language, what is "suffering"? Suffering means that there is a problem, and trouble comes, which makes you feel very painful and unhappy. This is "suffering".

What does "set" mean? It is suggested that instead of complaining, you should try to find out the root of the problem and think calmly. Why did this problem appear? Find out the root of the problem. For example, I didn’t do well in the exam and didn’t go to college, which made me very painful and annoyed. This is "bitter". "Set", find out the root of the problem, the root of the problem is that I didn’t study hard, and my method of studying is not right. These are all, and this is the root of the problem. Find out this "set".

It is not enough to find out the "set", but the third step is to "destroy". "Extinction" means finding a solution to the problem. I know that my grades are not good, and the main reason is that I don’t study hard. I always play computer games and don’t study well. This is the problem. After finding out the root cause, I know that if I want to get better grades, I can only work harder. Then the way to find out this problem is to study harder and study my book well. This is "extinction", which means reducing this problem.

The meaning of "Tao" is to carry out this (method), stick to it, and implement the solution to the problem. I will study hard in the future, but I don’t have the final say. I have to implement it seriously. I have to stick to it to get good grades. Bitterness, concentration, extinction and Tao are actually the "four steps" to solve the problem; Is to find out the problem first, find out its reason, find out the solution, and conscientiously implement the solution, that is, suffering, concentration, extinction and Taoism.

No matter what problems you encounter in your life, you can use this "four-step" method to solve them. If we are doing scientific work, this is also a basic step of scientific methodology, which is applied to those natural disasters and major earthquakes I just mentioned. The Wenchuan earthquake brought great pain, and about 90,000 people were killed. This is a great pain. How to solve it with the "four truths" of "suffering, gathering, extinction and Taoism"?

Earthquake is "bitter", I find out its root. The root cause is that the Longmenshan fault in central Sichuan, that is, the fault on the southeast edge of the Qinghai-Tibet Plateau, is often dislocated and displaced, and the displacement has caused the earthquake. Just now, we don’t know when there will be another earthquake, but we can improve our seismic standards and do a good job in building reinforcement projects, which can reduce its damage and disaster; This is a process of suffering, gathering, extinction and Tao.

Earthquake is like this, tsunami is like this, you find out the reason and try to solve it. The same is true of floods. I just reported to you that the root cause of floods is that we cut down trees, rain heavily, and soil erosion. Then we should rebuild vegetation and improve our ecological environment now. This is the method of prevention and control, and it is also the method of extermination and Taoism. It is that every disaster and every problem can find some solutions.

Many years ago, we had a SARS, and we also used an epidemic prevention method, that is, we found the cause of this SARS, that is, there was a non-coronavirus or something. Now it’s the same in COVID-19. You find the root cause and try to find a solution, which is to develop vaccines. Find out the root of every problem, find out its solution, and try to implement this method. That’s it.

If people want to feel at ease, the first thing is that you should be wise first. This is what the first paragraph of Heart Sutra says. You must "see that the five aggregates are empty" before you can "overcome all the hardships". The meaning of "seeing the five aggregates is empty" means that you should find out the root of the problem and understand what is behind everything. If you can be so wise, you can feel at ease, and you can live in the present and live in the present.

Buddhism often talks about the phrase "live in the present". What does it actually mean? That is, if you can feel at ease, you can concentrate on what you need to do right now. For example, I am a teacher. I am a teacher. I concentrate on doing a good job as a teacher and teaching my books well. If I live in the COVID-19 epidemic, as I have lived in the past almost a year, I will concentrate on the epidemic prevention work, do my part, wear my mask, and I will do the isolation work. These tasks need to be done. This means "living in the present".

If I’m unlucky and I’m sick, I still have to concentrate on doing the patient’s job, cooperating with the medical staff’s treatment plan, etc., that is, you need to do a good job in every post and every moment, so you just have to concentrate on doing it well. If we can concentrate on the work at hand, then we won’t be distracted, and we won’t be paranoid. If we can’t be distracted, naturally we will have no worries.

Therefore, in fact, the so-called "living in the present" is the same thing as "having a free mind", that is, two sides of the same coin. If you can "live in the present", you can "have no worries", that’s what it means. Finish one thing, just like pressing "clear" on your computer. Clear it, and don’t dwell on it. What has been done is over, let him go, and then you can concentrate on the next job. If you can do this, even though you have endless things to do every day, you can be busy. When everything is done, just put it down. That’s what it means.

Repeating this "view of karma" teaches us that everything in the world has its reasons, whether it is prosperity or adversity. Even when the scenery is very beautiful, we won a lot of honors. Of course, there are reasons. When we encounter difficulties, there are also reasons. Difficulties also have a process of birth and death. With conditions, it will appear, and without conditions, it will not. There are conditions, but there will be no conditions, which will change.

The so-called change is impermanence, and impermanence seems a little worrying, but if you think about it seriously, it is precisely because of impermanence that you have a chance to improve. That is, I am in the middle of the epidemic, and now I am in a very difficult epidemic situation in COVID-19. Because of the development of the vaccine, I have a chance to improve, and it will not remain unchanged forever.

In the face of adversity, the method we adopt is to face it, accept it, deal with it well, and put it down after doing it well. This is also the same reason as the "four-part" of suffering, concentration, extinction and Tao I just mentioned, and put it down after finishing it. There is a short story. When Ma Yun was running, a fan told him, "You have gone through many difficult days to achieve this achievement today. If I were you, I would have been crazy after so many difficulties! " Ma Yun said: "Hard days are not sad, because you understand that hard days are impermanent, and it will change. You can actively improve the environment and make it a good day!"

Don’t be too pessimistic in suffering, but try to improve it. This kind of suffering is part of our growth. Finally, I will share a little story with you. This short story is that in a farm in the western part of the United States, there is a farmer who grows wheat, and in the United States, he grows wheat. Besides being a farmer, he is also a very devout believer. He prays to his God every night, which means praying every day. As a farmer, what do you think his prayer is asking for? Of course, it is to seek good weather and a bumper harvest in the coming year. This is what most farmers will say, and he also talks about it.

His god feels that I am still a very devout believer, so I will promise you that you will have a good weather next year, and there will be no wind injuries or pests, so that you can get a bumper harvest. The farmer was so happy that he planted the wheat seeds. I planted it in spring and saw it grow well in summer. When I harvested it in autumn, I knocked down this wheat valley and waited happily for a bumper harvest. After opening the wheat valley, he saw that the inside of the wheat was empty, and many of them were not in the millet.

What’s going on? You think that as a farmer expecting a bumper harvest, you are certainly unhappy when you encounter this situation again. Just pray with his god again, I hope god will show him. When God saw it, he understood, and said to him, "You should know that the wheat you planted is a plant, and the growth process of the plant is a natural process. This natural process includes the days when the sun shines and the days when the wind hurts the insects. The wind hurts the insects is actually a part of its growth process. Without it, its growth process is incomplete. The growth process is incomplete, and the growth of wheat is also incomplete, so you can’t grow millet. "

Of course, this story is fictional, but we must understand that in the process of wheat growth, wind injury and insect pests are part of it. The same is true in our life. We encounter all kinds of challenges and difficulties, which makes us stronger and more able to face these difficulties and hardships. It makes us more capable of facing greater challenges and may be more successful in the future. So we say that suffering is one of the growth genes of human society. Because of this hardship, we will become more capable and stronger in the process of overcoming difficulties, and there will be more successful conditions in the future.

Finally, I want to say that this epidemic reflects that there is not an ideal and harmonious relationship between us and nature. Looking ahead, we should pay more attention to the harmonious coexistence between man and nature. The Chairman of the Supreme Leader said not long ago, he said: "Humans can no longer follow the old road of only taking, not investing, only developing, not protecting, only using and not repairing." That is, you can’t always bully nature, you can’t always take the benefits of nature, you should give back to nature.

Many years ago, I listened to Mr. Tsung i Jao, who also talked about a concept called "mutual benefit between man and nature", that is, everyone takes good care of each other, that is, nature gives you many benefits, and you should also give back to nature and do something good for nature. In English, this is called "mutually beneficial". Everyone should help each other. If we can do this, slowly, this disharmony between man and nature will gradually reduce these problems. My report for today ends here. Thank you very much for your patience, thank you, thank you!