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　　At 8 o’clock every day, CCTV will sort out the big and small things that happened around us within 24 hours.

　　[Focus]

　　● According to the official WeChat news of the Emergency Management Department, there will be heavy rainfall in Guizhou, Guangxi and other places from July 7 to 15, and some small and medium-sized rivers in the rainstorm areas in Guizhou and Hunan may have major floods.

　　● Guangxi recruited 1,515 retired teachers from all over the country to teach in rural areas, with a subsidy of 30,000 per academic year.

　　● On July 6th, Beijing time, at the 43rd World Heritage Conference held in Baku, Azerbaijan, the site of Liangzhu Ancient City was approved to be included in the World Heritage List. The total number of world heritage sites in China has reached 55.

　　● Under the coordination of the China Embassy in Vietnam, the Vietnamese police handed over a fugitive suspect, Liu, to the Chinese side. Liu and others were suspected of illegally absorbing deposits of 1.8 billion yuan.

　　● The Propaganda Department of Shenze County Committee of Hebei Province issued a notice saying that the problem of falsely reporting the number of toilets in the village was true. Liu Moumou, the person in charge of toilet renovation in Shenze County, was suspected of cooperating with Wu Moumou, the village cadre, to collect funds, and the amount and destination of the funds were under investigation.

　　● According to the Shandong Provincial Commission for Discipline Inspection, Liu Zhenxue, deputy secretary and deputy director of the Party Group of Zaozhuang Municipal People’s Congress Standing Committee and chairman of the Municipal Federation of Trade Unions, is suspected of serious violation of the law and is currently undergoing disciplinary review and supervision investigation.

　　● The People’s Procuratorate of Yuhua District of Shijiazhuang City has approved the arrest of Yang Zhuoshu, the actual controller of Zhuo Da Group, and Yang Hanqing, the CEO of Zhuo Da Group, the suspects suspected of illegally absorbing public deposits.

　　● Recently, Xu Chengbin, an associate professor of Jilin University of Engineering and Technology, was suspected of plagiarizing other people’s papers, which caused social concern. Jilin University of Engineering and Technology responded on the 6 th that the academic Committee of the school had started the investigation procedure.

　　● On the 6th, the Propaganda Department of Suzhou University confirmed that Yang Xiangjun, the vice president of the Institute of Clinical Medicine of Suzhou University, who had been reported by doctoral students for "taking back the buckle of improperly installed stents", had recently been expelled from the Party for violating discipline, and was removed from the positions of director of internal medicine and director of cardiovascular medicine.

　　● According to the reports from the masses, Beijing Municipal Market Supervision and Administration Bureau carried out supervision and inspection of the city’s sweet tea beverage shops. At present, four stores under Ganchadu have been investigated.

　　[Expo]

　　● The Russian Defense Ministry said that a Russian Su -27 fighter plane intercepted the US anti-submarine aircraft near the Russian border over the Black Sea a few days ago.

　　● On July 8, local time in the United States, the YINGYING ZHANG case will enter the sentencing stage, and the US federal jury will decide whether the defendant Christensen is sentenced to death.

　　● South Korea officially dissolved the "Reconciliation and Healing Foundation" jointly established by Japan and South Korea to assist former comfort women. In this regard, the Japanese side reacted strongly and said it was absolutely unacceptable.

　　● Jeff Bezos, the world’s richest man and founder of Amazon, officially divorced Mackenzie Bezos, paving the way for Mackenzie to acquire a 4% stake in Amazon worth $38.3 billion. Bezos will hold 12% of the company’s shares, worth $114.8 billion, and remain the richest man in the world.

　　● Recently, in the circus of Marina Monti Orfei performed in a city near Bari in southern Italy, four tigers suddenly attacked the animal trainer, causing the animal trainer to die on the spot.

　　[hundred States]

　　● At 6 o’clock on the evening of July 5, two China citizens and a local diving instructor were killed while diving in the waters near Kulapuan Island in Semporna, Sabah.

　　● Recently, an auxiliary police officer of the High-tech Zone Brigade of the Traffic Police Detachment of Binzhou City, Shandong Province was dragged by an escaped off-road vehicle for hundreds of meters while on duty at the south end of the Yellow River Bridge. The auxiliary police officer died after being rescued.

　　● At 10: 00 a.m. on July 6, the Shanghai Higher People’s Court publicly pronounced the case of the defendant Zhu Xiaodong’s intentional homicide appeal according to law, ruled that the appeal was dismissed, upheld the original judgment that Zhu Xiaodong was sentenced to death for intentional homicide and deprived of political rights for life, and submitted it to the Supreme People’s Court for approval according to law.

　　● On the 6th, the reporter learned from the police in Luohe and Xuchang that the suspect Yan Honglei absconded after committing a crime in Luohe on July 4th, and committed a crime in Xuchang the next day. Both cases were homicides and the victims were women. The police offered a reward for the murderer.

　　● Recently, Maserati in Yongcheng, Henan Province crashed into a BMW, causing two deaths, and three suspects have been taken criminal compulsory measures. According to the investigation of Yongcheng Public Security Bureau, on the evening of July 3, after three people, Tan (female, 23 years old, unemployed), Liu (male, 24 years old, student) and Zhang (female, 21 years old, employee of Yongcheng municipal enterprise), drank, Tan drove a Maserati car and took Liu and Zhang away. Chasing the BMW car in the process of escaping, causing the BMW car to burn.

　　● Longnan county, Ganzhou, Jiangxi Province, an ancient bridge with a history of 500 years has survived the flood peak despite being hit by floods, and its main structure is intact. The local authorities are studying the restoration scheme.

　　● According to the Xi ‘an Public Security Bureau, a man got his driver’s license and drank with his friends to celebrate. After the party, the man met the traffic police to check the drunk driving after driving for ten minutes, and this "short-lived" driver’s license was cancelled after more than ten hours.

　　Visual sense

　　● Since the flood season, affected by upstream rainfall and reservoir flood discharge, the No.2 flood occurred in the upper reaches of the Yellow River this year. The water volume of Hukou Waterfall at the junction of Shanxi and Shaanxi continued to increase, and the roaring Yellow River water rolled down.

　　● Guangzhou Customs recently seized a live crocodile in the travel inspection channel of Guangzhou Airport Port, which was identified as Nile crocodile by the South China Wildlife Species Identification Center, belonging to the species listed in Appendix I of the Convention on International Trade in Endangered Species of Wild Animals and Plants (CITES).

　　[sound]

　　● "The husband is strong and confident, and there is no end to poverty."

　　— — President of Tsinghua University sent a message to graduates.

　　● "Too much money? ! Why not listen? ！”

　　— — My parents will spend 9000 yuan to buy a mattress when they sign up for a group trip abroad! My daughter made more than 20 international phone calls.

　　[face]

　　● Academician Shen Shuzhong of Nanjing University won the highest international gold medal in stratigraphy at the Third International Stratigraphic Congress. The prize is awarded every four years, and only one person wins each time. Academician Shen Shuzhong is the first Asian scientist to win this award.

　　See you at 8 o’clock tomorrow!

　　Editor: Xiao Xiao

　　"Star" hospital preparations were sold on the Internet, and "life-saving" medicines were in short supply, so it was difficult to distinguish the authenticity of traditional Chinese medicine … … In the future, these problems related to people’s "taking medicine" are expected to find a solution. On December 1st this year, the newly revised Drug Administration Law of People’s Republic of China (PRC) will be officially implemented. In the new version of "Drug Administration Law", a series of new policies have been introduced to ensure that people eat drugs more standardized and safely.

　　Change one

　　Online sales of hospital preparations will be illegal.

　　The provisions of the new law: preparations prepared by medical institutions should be inspected for quality in accordance with regulations; Qualified, with a doctor’s prescription in this unit. With the approval of the drug supervision and administration department of the State Council or the drug supervision and administration department of the people’s governments of provinces, autonomous regions and municipalities directly under the Central Government, the preparations prepared by medical institutions can be used among designated medical institutions. Preparations prepared by medical institutions shall not be sold in the market.

　　At present, due to the difficulty in finding a medicine or trying to save trouble, many merchants in Wechat business and Taobao have increased their prices to sell "star" hospital preparations in major hospitals online, and they have repeatedly banned them. In the interview, the reporter found that there are many kinds of in-hospital preparations sold online, such as "Fule Cream" used by the first child to treat eczema in children, diphenhydramine hydrochloride Cream used by Union Medical College Hospital for pruritic skin diseases, and "Chushi Pill" & HELIP; … It can be described as oral and external use, and everything is available.

　　The "popular trauma cream" in the Third Hospital of Beijing Medical University was formerly called trauma massage cream, which is a kind of "star" preparation for external use in the Third Hospital of Beijing Medical University, and is mostly used for sports injuries and rheumatoid arthritis. Because of the good effect, many people rushed to the Third Hospital of Beijing Medical University for this medicine, and some even opened more than a dozen bottles. As a result, the hospital later had to limit the purchase of the drug, and each person could only open 2 bottles at a time. There is also the famous medicine "Brown Ammonium Mixture" made by Union Medical College Hospital, which has always been highly praised by many people: "This cough medicine, although it tastes bad, is more effective than other cough medicines."

　　The new "Drug Administration Law" issued this time is undoubtedly a "prohibition order" for hospital preparations prepared by medical institutions.

　　"The behavior of selling hospital preparations online is terrible and must be severely cracked down." Liu Qingquan, president of Beijing Association of Integrated Traditional Chinese and Western Medicine and president of Beijing Hospital of Traditional Chinese Medicine, said that hospital preparations should not and cannot be sold in the market. Because in-hospital preparations are not over-the-counter drugs, and not everyone can use them at will, they must be used in a standardized, scientific and reasonable way under the guidance of relevant experts in specific hospitals.

　　"It is very likely that patients will blindly use hospital preparations in private." He said, for example, Dingtong Ointment, an in-hospital preparation for treating traumatic injuries in Beijing Hospital of Traditional Chinese Medicine, patients must use this external medicine according to the symptoms and scope of pain under the guidance of medical staff. Under different circumstances, the thickness and duration of application are different. If the patient applies the medicine for too long, it is likely to cover the skin, which will aggravate the condition after infection. Another example is the "Chushi Pill" developed by Zhao Bingnan, a leading dermatologist in Beijing Hospital of Traditional Chinese Medicine. This classic medicine for eczema may cause a series of problems such as diarrhea, abdominal pain and loss of appetite if people with spleen and stomach deficiency and cold take it.

　　Liu Qingquan reminded the general public that hospital preparations can only be used after being diagnosed by doctors. He revealed that in the future, hospital preparations may be gradually converted into prescription drugs after further research, so that they can be circulated among major hospitals and convenient for patients to use.

　　Change 2

　　Take many measures to "ensure supply" of drugs in short supply

　　Provisions of the new law: The state encourages the research and production of drugs in short supply, and gives priority to the review and approval of drugs in short supply urgently needed in clinic and new drugs for preventing and treating major infectious diseases and rare diseases. The State Council may restrict or prohibit the export of medicines in short supply. When necessary, relevant departments in the State Council can take measures such as organizing production, price intervention and expanding imports to ensure drug supply.

　　Recently, it was reported that the commonly used drugs such as nitroglycerin tablets and allopurinol tablets for treating gout were once out of stock in Beijing, and many pharmacies could not find them anywhere. In fact, in recent years, there has been a shortage of drugs, especially cheap drugs.

　　"To solve urgent problems quickly, a long-term mechanism must be established." In this regard, a pharmacist in a top-three hospital in this city said that the reasons for the shortage of drugs are very complicated. Although some drugs are not expensive, they are clinically necessary, but the profit-seeking characteristics of enterprises determine that they lack motivation to produce such cheap drugs; The supply of raw materials for some drugs is greatly affected by the seasons, which may cause shortages in a specific period. He bluntly said that it is very meaningful for the country to write the shortage of drugs into the legal provisions this time, especially the article "restricting or prohibiting the export of shortage drugs", which is very tough and also provides a guarantee for the supply of drugs.

　　He suggested that in the future, a monitoring and early warning platform for the production and supply of short drugs should be established all over the country, and real-time dynamic monitoring of clinically short-lived drugs should be started from the production end and even the raw material end. At the same time, government departments can also require relevant pharmaceutical manufacturers to regularly submit the inventory of drugs, so as to warn the risk of drug shortage in advance and respond in time.

　　Relevant government departments are also actively responding to the "New Drug Administration Law". The National Medical Insurance Bureau has also indicated that it will study the establishment of a record system for the suspension of production of medicines and APIs in short supply, and screen a number of medicines that are urgently needed in clinic and are prone to shortage in market supply to implement normal storage.

　　Change three

　　Ensure the traceability of Chinese herbal medicines

　　The provisions of the new law: Chinese herbal pieces production enterprises fulfill the relevant obligations of drug marketing license holders, implement the whole process management of Chinese herbal pieces production and sales, and establish a traceability system for Chinese herbal pieces to ensure the safety, effectiveness and traceability of Chinese herbal pieces.

　　There is a popular saying in the field of traditional Chinese medicine, "Good medicinal materials make good medicine". Chinese herbal medicine is the source of Chinese medicine, and it is also the foundation of industry development. The primary processing of Chinese herbal medicine is closely related to the processing of Chinese herbal pieces. Nowadays, there are many adulteration methods, such as dyeing, weight gain, sulfur fumigation and shoddy, which are used by some unscrupulous operators in pursuit of economic benefits.

　　This time, "establishing the traceability system of Chinese herbal pieces" was formally written into the new version of the Drug Administration Law.

　　"The same medicinal material, such as different places of origin, will have great differences in medicinal properties." Liu Qingquan said that Zhejiang Fritillaria and Sichuan Fritillaria, although both of them are Fritillaria, have different medicinal properties, which can be said to be completely different. There has been a saying that "one piece is worth one gold" since ancient times in Huazhou, Guangdong Province. The reason why the orange here is good is that the soil contains lapis lazuli, so the orange has a good expectorant effect. The orange in other places, compared with the orange, is much weaker.

　　However, the medicinal materials are similar in appearance. How can ordinary people tell the authenticity of these Chinese medicinal materials?

　　"The traceability system of Chinese herbal pieces is directly related to the quality of Chinese herbal medicines and the safety of people’s medication. This is a huge national project. From local governments, pharmaceutical companies, medical institutions, to the entire Chinese medicine industry, we should pay attention to this matter. " Liu Qingquan bluntly said that in the past, the prescriptions of old doctors all indicated the origin of traditional Chinese medicine, such as "Radix Codonopsis Lu, Sichuan Yalian, Sichuan Brocade Rhubarb" … … In the future, we should strive to realize that every Chinese medicine prescribed by doctors to patients has its own "ID card". In addition, the information codes of Chinese herbal medicines can be found by means of modern science and technology, and the origin of these Chinese herbal medicines can be known by simply scanning the codes, so that the sources of Chinese herbal medicines can be traced back.

　　"At present, our hospital is exploring the traceability system together with relevant Chinese medicine experts." Liu Qingquan said that when Chinese herbal pieces are truly "traceable in source, verifiable in destination and accountable", Chinese herbal pieces will be truly brought into the scientific and standardized management system.

　　Change four

　　Chinese medicine will be more convenient to take.

　　Provisions of the new law: The state encourages the use of modern science and technology and traditional Chinese medicine research methods to carry out scientific and technological research and drug development of Chinese medicine, establish and improve a technical evaluation system that conforms to the characteristics of Chinese medicine, and promote the inheritance and innovation of Chinese medicine.

　　In the past, the classic Chinese medicine preparations commonly used by people, such as pills, powders, ointments and Dan, have great advantages, but they also have obvious disadvantages. With the rapid development of society, the soup is bitter and difficult to eat, and the black pill is even more difficult to swallow. There are also some external ointments that are smeared on the body in a dark place, and people can’t even go out after using the medicine … …

　　"Chinese medicine must be integrated with modern science and technology in order to truly move towards a new era." Liu Qingquan said that with the legal basis, in the future, Chinese medicine experts can use modern scientific and technological means to form brand-new Chinese medicine preparations in accordance with the theoretical system of Chinese medicine, making Chinese medicine look good, delicious and easy to use. "Now there are many new dosage forms of traditional Chinese medicine, such as dropping pills, which concentrate the medicine into tiny dropping pills and have good curative effect; Another example is effervescent tablets. After adding corrective, Chinese medicine becomes better and more convenient to take. "

　　"In the future, we can consider applying nano-wrapping technology in traditional Chinese medicine, that is, using different techniques to wrap different pharmaceutical ingredients, and designing the path, time and target of drug release in advance to accurately reach the disease." According to Liu Qingquan, according to the theory of meridian introduction of traditional Chinese medicine, ephedra belongs to the lung meridian, that is to say, drugs will act on the lungs, but affected by various factors, and there are not many drug components that eventually reach the lungs. With the advanced technology of nano-coating, the effective components of ephedra can reach the lungs of patients directly, and the efficacy is more accurate.

　　Liu Qingquan said that the changes in the new version of the Drug Administration Law have brought more opportunities for the development of China’s pharmaceutical industry, but the relevant detailed rules and documents supporting the law should be implemented as soon as possible, otherwise the law may become a dead letter once it fails to land. (Reporter Liu Huan)

1905 movie network news　A few days ago, the animated film of DC superhero first exposed stills. The main characters of the film include Superman’s super dog Krypton (voice), Batman’s bat dog ace (voice), Merton the tortoise (voice), PB the pig (voice) and Chip the squirrel (voice).

The concept of the film originated from the pets in the comic book Adventure Comics in 1962. In the original comic book, each super pet belongs to a different superhero in DC. This film focuses on Superman’s super dog Krypton and Batman’s bat dog ace, and tells the story of DC super pets forming a team to fight crime together in the city.

Screenwriter Jared Stern wrote the script and directed it with wreck-it ralph screenwriter Sam J. Levine. This is their first animated film. Jared Stern expressed the hope that the audience can feel that this movie is not only an animated film, but also a superhero movie, with both action scenes and fun.

At present, DC Super Pet Alliance is scheduled to be released in North America on May 20th, 2022.

In automobile theory, there are a series of indexes to evaluate engine performance, such as power index, economy index, reinforcement index, compactness index, environmental index, reliability index, durability index, manufacturability index, speed characteristics of internal combustion engine and so on.

These performance indicators are used to characterize the performance characteristics of engines and serve as the basis for evaluating the performance of various engines. Let’s talk about the specific meaning of these indicators.

Power performance index is an index to characterize the engine’s working capacity. Generally, the effective power, effective torque, average effective pressure and engine speed of the engine are used as indicators to evaluate the engine’s power performance.

1. Effective power:Effective power refers to the effective work output by the engine in unit time, which is what we often call the power of the engine.

It is the most important index of engine performance, which is directly proportional to the effective torque and engine speed. The engine power on an automobile is marked with total power and net power.

The total power refers to the power generated by the engine without any auxiliary equipment, while the net power refers to the power output from the flywheel with all auxiliary equipment including the generator, water pump, fan, steering booster pump and air conditioning compressor. Obviously, net power is more practical to us.

2. Effective torque:Effective torque refers to the torque output from the flywheel of the engine, which is what we often call the torque of the engine. Generally, the greater the torque of an engine, the stronger its acceleration and climbing ability.

The earlier the maximum torque of the engine appears and the wider the continuous speed range, the better the power performance of the car. Generally, high-torque engines are characterized by large cylinder bore and long stroke, and such engines generally have large displacement, so some old drivers often say that "displacement is king", and the larger the displacement, the more energetic it is. This is the truth.

3. Average effective pressure:The average effective pressure refers to the effective work issued by the working volume of the unit cylinder, that is, the force that pushes the piston downward. Generally, the greater the average effective pressure of the engine, the stronger the working function of the engine, and the greater the maximum power and torque.

4. Engine speed:Engine speed refers to the number of revolutions per minute of the engine crankshaft. The higher the engine speed, the more times the engine does work per unit time, and the greater the engine power.

For example, compared with a diesel engine, the maximum torque of a gasoline engine is not as large as that of a diesel engine, but the maximum power is higher than that of a diesel engine, which is due to the higher rotational speed of the gasoline engine.

In addition, the same kind of engine is also divided into two types: low-speed engine and high-speed engine. Therefore, when explaining the effective power of the engine, the corresponding speed must be indicated at the same time.

It must be noted here that the power of the engine is not equal to the power of the car, and the power of the engine is not equal to the power of the car. The dynamic performance of a car refers to the maximum speed, acceleration time and maximum climbing degree of the car, which is a comprehensive index.

Engine economy index includes two indexes: effective thermal efficiency and effective fuel consumption rate.

1. Effective thermal efficiency:The percentage of heat generated by fuel combustion converted into effective work is called effective thermal efficiency. Obviously, the higher the effective thermal efficiency of an engine, the better its economy.

At present, the thermal efficiency of gasoline engines is generally between 30% and 38%, but the thermal efficiency of diesel engines is higher than that of gasoline engines, which can generally reach 35% to 45%. The efficiency of electric vehicles can be as high as 90% or even 100%. Therefore, many countries are supporting the development and research of new energy vehicles and gradually restricting the production of fuel engines.

2. Effective fuel consumption rate:The amount of fuel consumed per 1kw of effective work output by the engine is called effective fuel consumption rate.

Obviously, the lower the effective fuel consumption rate of an engine, the better its economy. Generally, the effective fuel consumption rate of an engine is about 20g/kW h, that is, when the engine works for one hour and emits one kilowatt of power, it needs to consume about 20g of fuel.

Here, we should also pay attention to distinguish the economy of the engine from the economy of the car. The economy of a car refers to the fuel consumed by a car for a certain mileage, which is related to many factors. Good engine economy is only one of them, which does not mean that a good engine economy is necessarily good.

The reinforcement index refers to the evaluation index of the engine’s ability to withstand thermal load and mechanical load, which generally includes the power rise and reinforcement coefficient.

1. Power rise:The effective power output per unit engine displacement is called rising power when the engine is in calibration condition. The greater the lift power, the greater the effective power per liter of cylinder working volume, and the higher the thermal load and mechanical load of the engine.

Generally, the more advanced the engine, the higher the power. The engine with supercharging technology also has higher power rise than the naturally aspirated engine.

2, strengthening coefficient:The product of the average effective pressure and the average piston speed is called the reinforcement coefficient. The average piston speed refers to the average reciprocating speed of the piston when the engine works at the rated speed.

Obviously, the higher the reinforcement coefficient of the engine, the better its power performance, but the higher the requirements for the mechanical strength of the engine.

Compactness index is an index used to characterize the compactness of the overall structure of the engine, which is usually measured by specific volume and specific mass. Specific volume refers to the ratio of engine profile volume to its rated power, and specific mass refers to the ratio of engine dry mass (dry mass refers to the engine mass without fuel and coolant) to its rated power.

Obviously, the smaller the specific volume and specific mass of the engine, the more compact the engine structure.

Environmental indicators are used to evaluate engine exhaust quality and noise level. Exhaust quality refers to the amount of pollutants in engine exhaust, which is directly related to the living environment and health of human beings. At present, automobile exhaust pollution is an important factor of air pollution, so governments all over the world have formulated strict control laws and regulations to reduce the environmental pollution caused by engine exhaust and noise.

Reliability index is an index to characterize the normal and continuous working ability of the engine under the specified use conditions. The indicators for evaluating reliability include the mileage of first failure, the average mileage between failures, the damage rate of main parts, etc. This indicator is obtained by monitoring the whole life cycle of the engine.

Generally, it is bathtub-shaped, so it is also called "bathtub curve". At the initial stage of use, the failure rate is high, then the failure rate gradually decreases, and then it remains at a low level for a long time, and then the failure rate suddenly rises and remains high. At this time, the car will reach the end of its life.

Durability index refers to the limit time when the main parts of the engine are worn to the point where they cannot continue to work normally. It is usually measured by the mileage of engine overhaul, that is, the mileage traveled by the car between the factory and the first overhaul.

The manufacturability index refers to the index to evaluate the manufacturability and maintenance manufacturability of the engine. The engine structure has good manufacturability and is convenient for manufacturing and maintenance, so the production cost and later maintenance cost can be reduced.

This should be "painful" for many repairmen. Some engines are so compact that even if a small part is changed, many accessories have to be dismantled to do it. This kind of engine can be said to have poor manufacturability.

The relationship between engine performance indexes and adjustment conditions and operating conditions is called engine characteristics. There are speed characteristics, load characteristics and universal characteristics for gasoline engines.

The relationship between the effective power, effective torque and effective fuel consumption rate of the engine and the engine speed is called the speed characteristic of the gasoline engine. When the engine speed is fixed, the relationship between the fuel consumption per hour and the effective fuel consumption rate changes with the load is called the load characteristic of gasoline engine.

Universal characteristic curve is to synthesize multiple performance curves of the engine on a coordinate diagram, and comprehensively describe various performances of the engine. From the universal characteristic curve, we can see the running relationship of the engine at any speed and load, and can make economic analysis.

The speed characteristic of the engine is a very complicated concept. Analyzing it can deeply understand the relationship among engine power, torque and fuel consumption, which is of great guiding significance for us to know the engine and use it better.

The above are the main indicators to evaluate the performance of the engine. In fact, these indicators are a bit too academic. It is impossible for us ordinary consumers to understand all these indicators, and it is impossible for automobile manufacturers to mark all these indicators. So how can we judge the quality of the engine by simple methods when buying a car?

Generally speaking, we can look at the characteristic curve of the engine, which can clearly see the power output characteristics of the engine, see what the speed of the maximum torque of the engine is, how big the continuous speed range is, the economic working range of the engine, and so on.

Another situation is that we buy it. How can we identify the quality of the engine? This requires a wealth of experience, and it is difficult for an ordinary person to identify the advantages and disadvantages of engine performance.

Generally speaking, we can observe from several aspects:

First, whether the engine runs smoothly and whether the acceleration is smooth;

The second is the exhaust emission of the engine and the color of the exhaust gas. For example, if the exhaust gas temperature is too high, it means that the combustion is not good, if the exhaust gas is blue, it means that the engine works irregularly, and so on.

The third is to observe the lower exhaust of the engine. If the lower exhaust is too large, the engine is seriously worn. The fourth is to observe the carbon deposition inside the exhaust tailpipe. It is dry and has no carbon deposition under normal conditions. If there is a large amount of black carbon deposition, the engine will not burn well. If there is oil stain, the engine oil consumption is too large, and so on.(Text/KajiaNo.: Lao Hou Jie Che)

Directed by Gaopeng Tang and starring Wang Xuebing, Ma Yili and Zhu Gengyou, the film will land in the national cinema on September 14th. Yesterday, the film exposed the latest notices and posters of the sentient beings edition. Melodious music combined with poetic lens language highlighted the characteristics of the film, and their different "bad and cowardly" declarations attracted a lot of attention and sparked heated discussions among the audience.

The discussion of character attributes is booming, and the audience spontaneously looks for "bad advice"

The movie "The Road Not Taken" tells a story that takes place in the depths of the Gobi Desert in northwest China, which is both dangerous and full of warmth. In the film, Er Yong (Wang Xuebing) is entrusted by the creditor’s fifth brother, and takes a gloomy and taciturn child, Gawa (Zhu Gengyou), to pursue his wife. On the way, Er Yong meets a lonely truck driver, Xiaomei (Ma Yili), and the three meet many people along the way, and their fate changes quietly. With the announcement of all beings’ edition exposed yesterday, several main characters in the journey have become more stereoscopic, and their different "bad advice" declarations have become hot topics for fans to discuss, and they have begun to spontaneously look for hidden "bad advice".

In the film, Er Yong, Xiao Mei and Jia Wa are three people who connect the whole story in series, and they all seem to bear an unspeakable past. Er Yong has always been labeled as "bad coward", but the slogan "I just want to go back to the past, I am not a bad coward" has given the audience a new understanding of this character and made people more curious about the burden on him; The image of Xiaomei is becoming more and more full. In the new preview, the weak side hidden behind the strength is gradually highlighted, which makes the audience feel very distressed. In addition, the five elder brothers, big ears, general manager Li and other characters who are fascinated by the story line have gradually entered the audience’s field of vision. Many people have set up their own networks and expressed their expectation that the film will be released soon and they will see the complicated life on the road that they have no choice.

The first wave of word-of-mouth seizes the market highland and is praised as a conscience work of domestic road films

The character attributes in the film have caused a lot of discussion on the Internet, and in the roadshow of Beijing Railway Station that ended a few days ago, the audience present spoke highly of the completion of all aspects of the film. As a road movie that focuses on the little people, the film not only has an interpretation of the fate of the characters, a deep exploration of human nature, but also has a lot of black humor, which adds a touch of brightness to the slightly heavy plot development. As the film critics and ordinary audiences who saw the first wave of movies said, "Laughter is frequent in plain, warmth is more than rough" and "a rare road film and conscience work, without too fancy content, simple story and simple relationship between characters." In addition, the audience was deeply impressed by the superb performances of the actors. Wang Xuebing’s image of "bad cowardice" was praised for being online all the time, while Ma Yili’s performance that broke through the image made many audiences bluntly say "I didn’t recognize it", "I was too hard" and "I was very surprised" and "played the little eyebrow on the Gobi Desert".

At present, the film "The Road Not Taken" has been selected as the best new director competition unit of Chicago International Film Festival, the main competition unit of Cape Town International Film Festival and the Discovery unit of Warsaw Film Festival. After winning the best film in the Asian New Prize of the 21st Shanghai Film Festival, it has been recognized in international film circles. The strength of the first wave of high reputation also shows that the film has withstood the test of the audience.

　　Xinhua News Agency, Chengdu, January 15 (Reporter Yu Li) On the 15th, the Giant Panda National Park Administration released the image of the only white giant panda in the world. Since the infrared camera recorded this white giant panda in the wild for the first time in May 2019, by the end of 2020, the infrared camera controlled by Wolong, Sichuan Province photographed this white giant panda twice in February 2020, and the picture was extremely precious.

　　The white giant panda in the picture is either walking in the snow or "meditating". It sat down close to the tree where the infrared camera was installed, with its back to the camera all the time, like a quiet "little girl", and thought thoughtfully for more than 3 minutes. Three days later, the white giant panda passed through the dense forest and the small river ditch, appeared in another infrared camera on the ridge 1 km away, and then it took about 10 minutes to reach the foot of the mountain. The infrared camera at the foot of the mountain recorded its leaving back.

　　According to Tan Yingchun, executive of Sichuan Wolong White Giant Panda Protection Research Project, judging from the images taken by infrared cameras, this white giant panda has grown up a lot from May 2019 to February 2020, with a strong physique. Compared with the whole body white when I was a child, the hair of its limbs in adulthood still shows a faint golden color. In the two records in 2020, this white giant panda was active alone. From this, it is estimated that it is about 3 years old now and has left its mother to "stand on its own feet".

　　According to Li Sheng, a member of IUCN’s bear expert group and a researcher from Peking University College of Life Sciences, the white giant panda in the video has a steady pace, a strong body and a bright coat, so it can be seen that it is a healthy wild giant panda. Albinism is a rare phenomenon, but it exists widely in various groups of vertebrates. "Albinism" is usually caused by gene mutation of animals, which hinders the synthesis of pigments in animals and appears white, golden white or light gold in external form. Simple "albino" mutation does not necessarily affect the survival of individual animals. This white giant panda can grow up to about 3 years old, which shows that it has basically adapted to the living environment and is in good living condition.

　　Li Sheng said: "Judging from the fact that it has not been photographed in this area since then, it may have migrated and spread from its birthplace to its surrounding habitats. Judging from the habit of wild giant panda females spreading out, it is likely to be a female individual, who will leave her mother’s home and look for a new habitat when she becomes an adult. In order to further understand the situation of this individual and the distribution of albino mutant genes in the local wild giant panda population, it is necessary to expand the monitoring scope and use DNA testing and other technologies to find more evidence. "

　　Apart from the change of coat color, it is still inconclusive whether the albino mutation of the white giant panda will have other collateral effects on its physiology and health. Further study on this issue will help to further enhance human understanding of the ancient giant panda species, and scientifically evaluate the impact of albino mutant genes on the genetic diversity of giant panda wild population, which is of great significance to the cause of giant panda protection.

　　It is reported that about 15 people from Sichuan Wolong White Giant Panda Research and Protection Team participated in the project. It took one year to deploy high-density gridded infrared cameras around the 15 square kilometers where the white giant panda was first discovered, in order to further study and evaluate the specific impact of albinism symptoms on the individual’s survival and adaptability through continuous tracking.

　　From December 2019 to November 2020, more than 71,100 wildlife image files were obtained through infrared camera monitoring. In addition to the giant panda, other animal species recorded in the preliminary statistics include: Sichuan golden monkey, Tibetan Emirates monkey, red panda, black bear, leopard cat, pig badger, yellow-throated mink, water deer, hairy-crowned deer, wild boar, Sichuan antelope, Chinese impala, Chinese porcupine, rock squirrel, red-bellied pheasant, red-bellied golden pheasant, etc. Among them, the frequency of giant panda, Sichuan golden monkey, yellow-throated mink, water deer, crested deer, wild boar, Chinese impala, Chinese gazelle, Chinese porcupine and red-bellied pheasant is very high.

　　CCTV News:This is where you care about the progress of epidemic prevention and control on February 13th.

　　Report good news

　　The first batch of cured patients in Huoshenshan Hospital were discharged, including seven people.

　　The first severe child patient in COVID-19 in China was cured.

　　A small COVID-19 patient under 2 years old in Jingzhou, Hubei Province was discharged smoothly.

　　The Civil Aviation Administration of China has taken back 1,185 China citizens stranded overseas.

　　There are more than 40 designated medical institutions in COVID-19, Wuhan, and the total number of beds has increased to 12,000.

　　Ministry dynamics

　　Rural Agriculture Department: "Point-to-point" in production and marketing to cope with the difficulty of unsalable sales caused by the epidemic.

　　The Ministry of Justice introduced measures to strengthen public legal services for epidemic prevention and control.

　　Ministry of Industry and Information Technology: Promote enterprises to resume work and production in batches, guide enterprises to conscientiously implement the requirements of epidemic prevention and control, and increase assistance to small and medium-sized enterprises.

　　Ministry of Ecology and Environment: Medical wastes involved in epidemic situation basically achieve daily production and daily liquidation.

　　National Development and Reform Commission: The capacity utilization rate of masks in China is 94%, and the daily production of masks in Hubei is 158,000.

　　Health and Health Commission: The role and significance of gastrointestinal (fecal-oral) transmission in all transmission still need further observation and research.

　　The latest everywhere

　　Inner Mongolia implements closed management for all units, communities and Gacha villages.

　　Nanjing tourist attractions are open to medical workers nationwide for one year free of charge.

　　The Hong Kong Education Bureau continues to postpone the resumption of classes: classes will start no earlier than March 16th.

　　Focus on Hubei

　　Comrade Ying Yong was appointed member, standing committee member and secretary of Hubei Provincial Party Committee, while Comrade Jiang Chaoliang no longer served as secretary, standing committee member and member of Hubei Provincial Party Committee.

　　Comrade Wang Zhonglin was appointed member and standing committee member of Hubei Provincial Party Committee and secretary of Wuhan Municipal Party Committee, while Comrade Ma Guoqiang no longer served as deputy secretary, standing committee member and secretary of Wuhan Municipal Party Committee.

　　Hubei included the number of clinically diagnosed cases in the new data for the first time.

　　Notice of the Prevention and Control Command of Pneumonia Infection in novel coronavirus, Hubei Province: Continue to delay the resumption of school.

　　Hankou Bank responded to employees’ "posing in protective clothing": apologizing to the society.

　　Foreign correlation

　　There are 44 new cases of COVID-19 patients on the Japanese cruise ship Princess Diamond, and a total of 218 people have been infected.

　　Vietnamese Ministry of Health confirmed the 16th confirmed case of COVID-19.

　　Russian Foreign Ministry spokesperson Zacharova supported China in fighting the epidemic in Chinese at a regular news conference.

　　Epidemic prevention tips

　　Is it suitable to go out for square dance during the epidemic?

　　Wang Xiaojuan, Chief Physician, General Department, Beijing Chaoyang Hospital: At special times, we don’t recommend people to go out for square dancing. Wearing a mask and dancing in the square dance may cause difficulty breathing. A large amount of gas exhaled during exercise will make the mask wet, and then the mask has no protective value. We can change some sports methods, and it’s harmless to jump at home by ourselves.

　　All parties rushed to help.

　　The army sent 2,600 additional medical staff to support Wuhan in fighting the COVID-19 epidemic.

　　More than 20,000 medical staff have been mobilized to support Hubei.

　　The seventh batch of 700 members of Jiangsu medical aid team in Hubei assembled and set off for Wuhan.

　　Sichuan sent more than 200 medical team members to Wuhan.

　　A medical team of 160 people from Chongqing went to Wuhan to take over the intensive care unit of Wuhan First Hospital.

　　The most beautiful retrograde person

　　Among the seventh batch of medical staff from Jiangsu who rushed to Wuhan, Dr. Shi Ping from jiangsu province hospital worked in the fever clinic of his hospital for 14 days, and then observed it in isolation for 14 days as required. On February 13th, she just finished her medical observation, and on the 14th, she took the initiative to leave for Wuhan with the medical team.

　　make a loud sound when thrown to the ground―(of a speech) powerful and rousing

　　At this difficult time, Russia is with China. Russia sincerely supports the people of China and wishes the people of China final victory!

　　— — Russian Foreign Ministry spokesperson Zacharova supported China in fighting the epidemic in Chinese at a regular news conference.

　　Because of the travel, all the medicines we brought have been used up. We turned to the global consular hotline of the Ministry of Foreign Affairs. Thanks to your efforts and coordination of various departments, all our medicines have been received. Thank you for all your efforts! Thanks to the great motherland!

　　— — Hong Kong compatriots on the cruise ship "Diamond Princess" sent a thank-you letter to the China Embassy in Japan.

　　Seeing is believing

　　At the beginning of spring, Hangzhou West Lake Scenic Area is exceptionally clean. Recently, affected by the epidemic situation in COVID-19, it is hard to find tourists in the West Lake Scenic Area.

　　The Union Medical College Hospital affiliated to Fujian Medical University sent a 139-member medical team consisting of 39 doctors and 100 nurses to help Hubei. Dr. Lin Kai is eating the flat surface prepared by the hospital for the medical team with her daughter in her arms.

　　Daily "epidemic" map

　　Editor: Wang Ruoyi, Dong Shuyun

Soda soda, chemically called sodium carbonate, is a chemical raw material widely used in glass manufacturing, detergent production, pulp and paper industry and other fields. In recent years, the price of soda ash futures has been falling continuously, which has aroused widespread concern in the market. In this paper, the reasons for the price drop of soda ash will be discussed in depth, and the corresponding countermeasures will be put forward.

First of all, the change of supply and demand relationship is one of the main reasons for the decline of soda ash price. In recent years, the global soda production capacity has continued to expand, especially in China, where the newly built and expanded soda production lines have been increasing, resulting in oversupply in the market. At the same time, the demand growth is relatively slow, especially in the main application fields such as glass manufacturing and detergent production, and the demand growth fails to keep pace with the supply growth. This imbalance between supply and demand directly led to the decline in the price of soda ash.

Secondly, the decline of raw material cost is also an important factor in the decline of soda ash price. The main raw materials of soda ash are salt and limestone. In recent years, the prices of these raw materials have generally declined, reducing the production cost of soda ash. The decline in production costs enables manufacturers to sell their products at a lower price level, thus further depressing market prices.

In addition, the intensified competition in the international market has also affected the price of soda ash. With the development of globalization, the supply of soda ash in the international market is increasing, and the competition among manufacturers in various countries is becoming increasingly fierce. In order to compete for market share, some manufacturers have adopted a price reduction strategy, which has further pushed down the price of soda ash.

Faced with the continuous decline in the price of soda ash, manufacturers and investors need to take corresponding countermeasures. First of all, manufacturers can reduce costs by optimizing production technology and improving production efficiency, thus maintaining an advantage in price competition. Secondly, manufacturers can consider developing new application fields, expanding the market demand of soda ash and alleviating the imbalance between supply and demand. In addition, investors can spread risks through diversified investment portfolios and avoid over-reliance on a single product or market.

The following is a brief comparison table of the relationship between supply and demand and price changes of soda ash:

As can be seen from the table, the supply of soda ash is increasing year by year, while the demand is increasing relatively slowly, resulting in the price decreasing year by year. This trend shows that the imbalance between supply and demand is the main driving force for the price drop of soda ash.

In a word, the continuous decline of soda ash price is the result of multiple factors, such as imbalance between supply and demand, falling raw material costs and intensified competition in the international market. Manufacturers and investors should adopt corresponding coping strategies to cope with market changes and maintain competitiveness.

[Disclaimer] This article only represents the author’s own views and has nothing to do with Hexun. Hexun.com is neutral about the statements and opinions in this article, and does not provide any express or implied guarantee for the accuracy, reliability or completeness of the contents. Readers are requested for reference only, and please take full responsibility. Email: news_center@staff.hexun.com.

On June 10th, after 7: 00 a.m. Eastern Time in North America, I woke up uneasily and felt a little hoarse. After drinking a few mouthfuls of water, I quickly opened the curtains and looked at the sky outside the window. Fortunately, the sky is still blue, but I feel a little cloudy, and I can’t see the white clouds in the past. Turn on the weather forecast on the mobile phone, "london, Ohio, AQI air quality index 90", which is in a yellow area and belongs to medium air quality. The prompt is "the air quality is acceptable, but people who are extremely sensitive to PM2.5 particles may have respiratory diseases."

This is the fifth day of the worst air pollution in recent decades in the northeastern United States due to wildfires in Canada. Since June 6, major cities in the eastern United States have been haunted by smoke from wildfires. On June 7th and 8th, new york’s AQI (Air Quality Index) exceeded 300, and sometimes even exceeded 400. According to the data of the Air Quality Index of the US Environmental Protection Agency, on the morning of June 8, the air quality in North American cities was the worst in the world.

At this time, the air quality in new york has returned to a good level, and Philadelphia and Washington are still on the edge of the yellow area; With the drift of smog, Indiana and Ohio in the central United States have become the most polluted areas. Newcastle, Indiana has an AQI index of 156, which is rated as unhealthy and may affect everyone’s health. It is currently the highest pollution index in the United States.

Newcastle, Indiana, is where we drove through last night! I suddenly remembered the popular word "running poison" in the circle of American Chinese friends in recent days.

We are on a trip to the East of America at the wrong time. At 11 o’clock last night, when driving through Newcastle, we didn’t know we were in the center of poisonous smoke. I smelled an obvious burning smell in the car and began to cough involuntarily. Street lamps illuminate the air at night, and it seems that you can see smoke and dust repeatedly. Open the weather forecast software, AQI153! We had planned to park next to Newcastle for the night, but we were choked and had to drive for more than 100 miles. It was not until after midnight that we rushed out of the orange pollution area.

The average air quality index of the United States in 2022 is 37, and the average index of Oak Ridge, Ohio, the most polluted city, is 96. By contrast, it is not difficult to understand the panic that the American people feel about this air pollution. Among them, I interviewed L and S, citizens of new york, and Dr. Jacob Bendix, honorary professor of the School of Geography and Environment of Syracuse University, who has been tracking wildfires for a long time, trying to interpret the climate metaphor brought by this sudden wildfire crisis.

On June 7, 2023, a man looked at the George Washington Bridge through the smog and made a phone call. Image source: vision china "I have experienced the worst air quality in new york for three days!"

"There is an obvious burning smell, choking voice, red smoke sky, and everything is full of doomsday." L, who moved to new york from the north of China, recalled his experience a few days ago. "From June 6th to 8th, it was undoubtedly the three days with the worst air quality in new york!"

On June 7th, L went out without wearing a mask, only to find that most new york people in the street were wearing medical masks left over from the COVID-19 epidemic. "Medical masks actually have no effect on PM2.5 The New York City Government issued N95 masks at the subway entrance, and many people went to collect them." L told me that both the New York State Government and the municipal government issued notices to remind sensitive people to stay indoors, and the school cancelled outdoor activities, but did not suspend classes. Urban public services have not been affected, and the number of street people has not decreased significantly.

However, some outdoor public activities were forced to be cancelled. On Broadway, the performances of Hamilton and Camelot were cancelled on June 7th, and Jodie Comer, the star of The Surface, left the matinee 10 minutes later because of breathing difficulties. Shakespeare in the park canceled the performance of Hamlet on Thursday and Friday. Major League Baseball’s new york Yankees and Philadelphia Phillies postponed the game.

On June 8, Washington issued a rare code purple alert-which means that air quality is "very unhealthy" for everyone, not just those with respiratory diseases. The National Zoo of the United States was also forced to close, and animals, including three giant pandas, were taken indoors for refuge. Harmful air stretches all the way to Virginia and Indiana.

On TikTok, the most clicked videos these days include some videos that teach people how to make their own air purifiers with tape. The self-made filter stuck on the air inlet side of box fan with adhesive tape works very well, and the price is only 10 dollars. It is better to stick four filters together.

"Many people who have been living in the United States still have a great reaction to this air pollution. Hiding in the room with the air purifier on is a way of refuge." L said that these days, I have been driving a purifier at home.

Marshall Burke, an associate professor of earth system science at Stanford University, said on Twitter that the scale of smog events in new york this week was bigger than any time in the past two decades, and the PM2.5 value had reached off the charts. Although air pollution in eastern cities such as new york has temporarily eased, as long as Canadian wildfires are still burning, billowing smoke may come back at any time.

Zack Taylor, a meteorologist with the National Weather Service, warned that although air pollution in the northeastern United States may be suspended, smog may come back this summer. "The direct source of all this is obviously the fire in Canada. Until these fires are better controlled, smoke will continue to drift into the atmosphere. Depending on the wind direction and weather patterns-some of them may sometimes fall into the United States. "

The neglected truth: PM2.5 emission from wildfire or superman as the emission source.

How did it happen? The main source of this round of air pollution in the United States comes from wildfires in Canada.

At present, there are more than 400 forest fires burning all over Canada. Since last month, the smoke from the fire in Canada has been spreading to the United States, but it has been aggravated with the recent fire in Quebec. Last week alone, there were 150 wildfires in Quebec, and about 100 fires were considered completely out of control.

Due to climate change, the fire season in Canada came earlier and lasted longer than before. All 10 provinces in Canada are extremely dry or experiencing a total drought, which means that there is a lot of fuel ready to be ignited by the inevitable spark. The area burned by fires all over Canada is 12 times of the 10-year average at this time of year. The United States has sent more than 600 firefighters and equipment to Canada, and other countries are also providing help, but the fire is not decreasing. Canadian officials say this will be the worst wildfire season in the country’s history.

The worst wildfire season in history has also brought the worst air pollution in history. For a long time, people have pointed the finger at industrial pollution and exhaust emissions, ignoring the threat of wildfire to air pollution.

Wildfire, also known as forest fire, jungle fire and wasteland fire, is an unplanned, uncontrolled and unpredictable fire in combustible vegetation region. A lot of combustible materials, drought and high temperature usually cause serious wildfires. Wildfire will release a large amount of carbon dioxide, black carbon and brown carbon particles, as well as ozone precursors such as volatile organic compounds and nitrogen oxides (NOx) into the atmosphere, and these emission areas can cross national boundaries and continental boundaries.

Dr. Nidhi Kumar, a cardiovascular expert, wrote that we are now in a high concentration of pollutants and toxins. The concentration of carbon monoxide in the atmosphere is so high that it will not only cause heart problems of patients, but also cause lung problems and general inflammation of the body.

Wolfgang Knorr, a Swedish scientist, wrote in the paper "The Impact of Climate and Population on the Air Pollution Hazards of Wildfire in the 21st Century", "Wildfire poses great risks to human life and health due to the emission of toxic smoke. At present, in most parts of the world, the emission of PM2.5 from wildfires exceeds that from human sources, while the emission from deforestation or peat fires is a secondary source. This means that controlling man-made emissions will not be enough to achieve the World Health Organization’s air quality goals. "

The United States has always been seriously affected by air pollution caused by wildfires. Jia Coco Liu analyzed the level of fine particulate matter (PM2.5) directly caused by wildfires in 561 counties in the western United States during the fire season from 2004 to 2009 in the paper "Particulate air pollution caused by wildfires in the western United States under climate change". They found that wildfires contributed an average of 71.3% of the total PM2.5 in the days when PM2.5 regulatory standards were exceeded in these six years.

Why did this Canadian mountain fire have such a severe impact on the air in North America? Professor Jacob Bendix told me that, first of all, the unusually hot and dry weather conditions led to unprecedented fire outbreaks, both in quantity and scale. Secondly, we encountered a rare but not unprecedented weather pattern, which gave us a few days of strong north wind and brought the smoke from those fires to the eastern United States. The combination of these events produced an unusually large amount of smog, and most of it was transported to densely populated areas.

Under the global climate change, no one can escape the "smoky sky"

"Welcome to a smoky day!" S had been living and working in the Bay Area before, and moved to new york last year. For a Californian, she is familiar with the weather in new york these days. "Red sky? Do you have black smoke secretion when you blow your nose? We all went through it in California. I moved from the west to the east to avoid smoking. Ironically, it seems that the smoky days have followed me. "

Every summer and autumn, arid California will experience a difficult wildfire season. In 2020, 4.3 million acres of land in California were burned. Researchers at Stanford University estimate that in 2020, smoke inhalation caused 1,200 additional deaths in California. When the same story happened in new york, a global metropolis, people’s attention to wildfire was pushed to a new height.

Since the industrial age, the world has warmed by about 1.2 degrees Celsius, and climate change has increased the probability of hot and dry weather that may contribute to wildfires. A 2021 study supported by the National Oceanic and Atmospheric Association found that climate change has been the main reason for the increase of hot and dry fire weather in the western United States.

A United Nations report last year warned that the intensity of global wildfires is expected to increase by 57% by 2090 due to climate change. Jia Coco Liu estimates that under the future climate change, from 2046 to 2051, the frequency and intensity of more than 82 million people experiencing wildfire smoke will increase by 57% and 31% respectively. Northern California, western Oregon and the Great Plains may suffer the worst fire smoke exposure in the future. In the changing climate, extreme events may have a significant impact on human health.

"This is a good metaphor for how complex and interconnected the global climate system is." Illinois climatologist Trent Ford said. Wildfire smoke can spread hundreds or thousands of miles, and can cross national boundaries and even continents. In the face of mountain fires in other countries and illusory smoke, what people can do seems to be very limited except hope for wind and rain. "Destiny community" and "common powerlessness" came together.

Professor Jacob Bendix told me that some smoke from this wildfire in Canada will even reach Asia. "It is expected that the concentration will be very low at that time and will not cause major problems. However, he mentioned that what is more worrying is that Siberia has also experienced more and more serious wildfires in recent years. As this trend continues in the future, it is likely that enough smog will reach the northeast of China, which will have a significant impact on health.

Is there anything else we can do? In the United States, the latest "less sparks, less wildfires" action is obviously still in force, but it has not yet reached its goal. Studies have shown that 80% of wildfires in the United States are caused by human carelessness. "Less sparks, less wildfires" calls on people to put out campfires, tighten trailer chains to prevent them from sparking on asphalt pavement, cut grass as soon as possible, do not cut grass where blades can hit rocks, prepare fire-fighting tools to deal with debris burning, and shoot at safe targets.

In the long run, we must make greater efforts to mitigate climate change. Jacob Bendix said that although there are many factors leading to wildfire disaster, including past and present forest management methods, where people live and the way they build houses and other buildings, natural or man-made fire sources and so on. However, there is one factor that will lead to the increase of disasters in various environments, and that is climate change. So far, the most important thing we can do is to reduce greenhouse gas emissions.

Jacob Bendix told me that because climate change is increasing the frequency and severity of heat waves and droughts, it is almost certain that the number and scale of wildfires in most parts of the world will increase in the coming decades.

"We have seen this growth trend and have every reason to believe that it will continue. These fires will directly harm human society by destroying houses and infrastructure, destroying wood resources, generating smoke that restricts human activities and endangers human health, and occasionally killing people who cannot escape from the flames. There will also be collateral damage, because the fire itself will release carbon into the atmosphere, which will lead to climate change. In addition, the smoke from North American fires may darken Greenland’s glaciers, making them absorb more sunlight and melt faster. Melting glaciers cause sea levels to rise, thus creating additional problems. "

Professor Jacob Bendix said that all these impacts remind us of the urgency of mitigating climate change. Although it may be too late to stop some of these effects, our actions can at least prevent the situation from getting worse. At least, it’s never too late to try to reduce the damage.

1905 movie network news Recently, a talk show actor Yang Li’s performance on the program caused a hot discussion among netizens. In the program, Yang Li said, "There is a bottom line for men." "You feel that I am the most hateful old witch in the world, and all the sufferings in his life are due to my saying, why do you look so ordinary but so confident?"

Netizens also hold different views on Yang Li’s remarks. One side expressed strong support for Yang Li’s views, while the other side expressed dislike. Some netizens even reported Yang Li that what she said was "suspected of gender discrimination".

In this regard, many actor stars expressed their views on the Internet. Chi, who is also a talk show actor, sent two Weibo in succession. He said: "Someone always asks me what a talk show should look like. I think it is probably like Luo Xiang, but it is definitely not like Yang Li." Then he said, "Actually, I know myself as a woman." Chizi’s remarks have been denounced by many netizens, who think that this kind of strange tone is very undesirable.

On the evening of December 27th, actor Yao Chen voiced his support for Yang Li on his personal social platform. Yao Chen wrote: "Whenever such an offense is slowly accepted, our world will have more possibilities about life and humanity."

Some netizens said that Yao Chen had to get involved in everything to shut her up. Yao Chen wrote back: "A woman is full of such malice towards a female star she is completely unfamiliar with, so I can only wish you a happier life." Yao Chen, who was not understood, revealed some helplessness in her words.

Some netizens think that Yang Li’s point of view may not be to stir up opposition, but the report and the marketing number add fuel to the fire, which makes the situation become like this, saying that "Yao Chen’s vocal support is an arch fire", while Yao Chen replied: "There is no arch fire, just support. Opinions vary. "

Not only Yao Chen, but also Wu Zhenyu posted on social platforms, which was suspected to support Yang Li. He said, "It is difficult for a person to have a sense of humor, and it is even more difficult for a person to appreciate it! It’s about someone sitting in the right place, and they will turn the joke into a knife and plunge it into themselves, and then they will cry out in blood and be hurt! No wonder crosstalk talks about partners on stage! Obviously, this number is the gentleman next to it, so everyone will not rush to sit in this number! May the world be more humorous and happy. "