[Deep Science Popularization] What exactly is nuclear wastewater? What can we do in the face of nuclear wastewater

  On April 13th, 2021, the Japanese government announced that it would discharge the nuclear waste water stored in the Fukushima Daiichi nuclear power plant of Tokyo Electric Power Company into the sea, and the total amount of discharge would exceed 1 million tons, which caused an uproar all over the world.
Nuclear wastewater, what is nuclear wastewater, and what can we do in the face of nuclear wastewater?
  (This is the Fukushima Daiichi nuclear power plant in Japan, which was filmed on April 13th. Xinhua News Agency/Kyodo News Agency)
Nuclear wastewater, what is nuclear wastewater, and what can we do in the face of nuclear wastewater?
  (On April 13th, a citizen browsed the news of Japan’s decision to discharge Fukushima nuclear sewage into the sea through his mobile phone in Tokyo, Japan. Xinhua News Agency reporter Du Yiyi photo)
  I. Unveiling the Mystery of Nuclear Waste Water
  At the beginning of the article, let’s first understand what nuclear wastewater is. Under normal circumstances, the nuclear waste water we refer to refers to radioactive waste liquid which contains radioactive elements and thus has certain radioactivity. So where did these waste liquids come from and how were they treated?
Nuclear wastewater, what is nuclear wastewater, and what can we do in the face of nuclear wastewater?
  (This is the nuclear sewage storage tank of the Fukushima Daiichi nuclear power plant in Japan, which was shot on February 13th. Xinhua News Agency/Kyodo News Agency)
  As we all know, water resources are an important element to ensure the normal operation of nuclear power plants. The production water of nuclear power plants is mainly cooling water, and the cooling mode of coastal nuclear power plants generally adopts seawater direct current cooling, so the amount of fresh water used is less. However, inland nuclear power plants not only need a large amount of water, but also require high water quality, and the normal operation of nuclear power plants cannot be separated from a stable supply of water resources, so they need a high water supply guarantee rate. The annual water consumption of a single million installed units in nuclear power plants with circulating cooling mode is 40 million ㎡, and the water withdrawal is about 11 million ㎡. In order to ensure that the concentration of radioactive elements in the discharged waste liquid reaches the safety standard, a considerable amount of water must be required for dilution.Therefore, the water resources condition is one of the key factors in the site selection of nuclear power department, which requires sufficient and reliable water resources guarantee, and fully considers the water quantity and water resources dispatching conditions during the extremely dry period.
  Long-term discharge of low-level radioactive waste water will lead to the formation of radioactive element enrichment areas in areas with weak water flow exchange, and can also form radioactive element enrichment through sediment adsorption, food chain transfer and groundwater lateral infiltration, which will affect the downstream water quality. The sudden events of inland nuclear power plants have potential risks to the water supply safety downstream of them. Once the nuclides in the nuclear island leak out and enter the downstream water body, it will have a great impact on the safety of downstream water supply.
  The increasing shortage and pollution of water resources in China, as well as the increasing water quantity and population of river-type drinking water sources, have become the main limiting factors for the development of inland nuclear power construction, and the water resources management of nuclear power construction projects has also received widespread attention from the society. Under the new situation that the country implements the strictest water resources management system, the water resources management of nuclear power construction projects will also be highly valued. This shows that the water demand of nuclear power plants is huge.
  Fresh water resources will form radioactive wastewater containing radioactive elements after being used by nuclear power plants.Under the normal operation of nuclear power plants, radioactive elements in radioactive waste liquid mainly come from radionuclide ions produced during fission and activation. During the operation of the reactor, the dissolved boric acid in the primary coolant reacts to produce tritium, which causes the tritium concentration in the coolant to increase and accumulate. However, there is no economically feasible technology to separate tritium from the primary coolant, so we can only adopt the way of discharging coolant to maintain the activity level of tritium in the primary coolant, and the discharged coolant is the main source of radioactive waste liquid in nuclear power plants. Tritium, fission products from fuel, fission products from fuel pollutants and activated corrosion products are the main components in radioactive waste liquid.
Nuclear wastewater, what is nuclear wastewater, and what can we do in the face of nuclear wastewater?
  (Nuclear waste water storage tank photographed in Fukushima Daiichi nuclear power plant, Japan. Xinhua News Agency)
  At present, there are many ways to treat the radioactive waste water produced by nuclear power plants under normal working conditions, such as flocculation, filtration, evaporation, ion exchange, membrane separation technology, etc., so that the radioactive elements contained in it can be reduced to within the standard range and then discharged into the receiving water body. In reality, engineers will adopt different treatment processes or reasonable process combinations according to water quality conditions, so as to achieve ideal treatment results.
  After a series of treatments, the radioactivity of radioactive waste liquid becomes very low, which we call low-level radioactive waste liquid.Although its radioactivity level is very low, China has issued relevant emission standards to fundamentally ensure the safety of people’s production and life, such as the dual control of concentration index and total index of low-level radioactive substances in nuclear power drainage, and requires relevant units to attach great importance to the design of the discharge mode of low-level radioactive waste liquid from nuclear power and create more favorable dilution and diffusion conditions as much as possible.
Nuclear wastewater, what is nuclear wastewater, and what can we do in the face of nuclear wastewater?
  Second, the appalling nuclear accident in history
  Although people have accumulated a lot of experience in the use of nuclear energy, and the security technology has become more and more mature, these valuable experiences have been returned by a series of regrettable disasters. Let’s briefly review several relatively serious nuclear accidents in human history.
  1. Three Mile Island nuclear power plant accident
  Three Mile Island Nuclear Power Plant is located near 16km southeast of Harrisburg, the capital of Pennsylvania, USA. Its Unit 2 (TMI-2) is a 950MW electric power (880MW net electric power) pressurized water reactor designed by Babcock and willcocks and operated by Metropolitan Edison. On March 28th, 1978, it reached the critical point. One year later, on March 28th, 1979, the most serious accident in the history of commercial nuclear power plants in the United States-Three Mile Island nuclear power plant accident occurred. The accident started with a transient caused by the loss of water supply. After a series of events, the core melted and a large number of fission products were released into the containment. Although the radioactive release to the environment and the radiation consequences to people and the environment are very small, and the accident rating is only 5, the accident has had a far-reaching impact on the development of the nuclear industry in the world.
  The accident was caused by the accident cooling system of the secondary circuit of the nuclear power plant automatically starting after the water pump in the secondary circuit failed. However, the water in the secondary circuit was still in a cut-off state after the system was automatically started because the workers failed to open the valve of the accident cooling system after overhaul a few days ago. When the temperature and pressure in the reactor rise in this case, the reactor will automatically stop and the pressure relief valve will automatically open, releasing part of the steam-water mixture in the core. At the same time, when the pressure in the reactor dropped to normal, the pressure relief valve failed to return to its seat automatically due to a fault, so that the core coolant continued to flow out and the pressure dropped below normal, so the emergency core cooling system was automatically started. However, the operator did not judge that the pressure relief valve did not return to its seat, but turned off the emergency core cooling system and stopped injecting water into the core. This series of management and operation errors are intertwined with equipment failures, which makes a small failure expand sharply and causes a serious accident of core melting.
  About 70% of inert gas (mainly 133Xe (tritium -133)), 30% of I and 50% of Cs (cesium) and a small amount of other fission products were released into the main cooling system. Some radioactive materials entered the pressure relief box at the bottom of the containment through the open pressure relief valve. After 15 minutes, the pressure relief box overflowed, the bursting valve burst, radioactive water entered the pit, and fission gas entered the containment. After that, a part of radioactive water was sent to the drainage tank in the auxiliary plant, causing some radionuclides to overflow; In addition, the operator opened the main system drainage system, which also caused the leakage of radionuclides. The operator thinks that there is too much water in the main system, so he opens the drain system and introduces part of the coolant into the volume control box through the purification system, thus communicating with the degassing system. The degassing system compresses the released gas to the decay box and discharges it to the chimney through the filter. In the accident, the main system produced a large amount of gas, which made the degassing system overloaded. The gas was discharged from the safety valve of the container control box, and about 5% of inert gas and 10-5% of gaseous I entered the environment.
  Very little radioactive material was released in the accident at Sanli Island, indicating that containment is very important. Although the containment is not absolutely leak-free, it is basically not mechanically damaged. Due to the addition of sodium hydroxide to the containment spray, most iodine and cesium are trapped in the containment. The gas leaked from the containment passes through the auxiliary building, so most radioactive materials are collected by the filter.
  2. Chernobyl nuclear power plant accident
  In the early morning of Saturday, April 26, 1986, the first highest-level 7-level nuclear power plant accident occurred in Chernobyl Unit 4 of the Soviet Union. The accident of this nuclear power plant is a serious accident caused by prompt critical caused by power transient during the test of reactor safety system. The reactor core, reactor building and steam turbine building were destroyed, and a large amount of radioactive materials were released into the atmosphere.
  At the time of the accident, four 1000MW RBMK reactors were in operation, and two other reactors were under construction nearby. The accident of Unit 4 was put into operation in December 1983. The Chernobyl nuclear power plant plans to build eight nuclear power units with 1 million kilowatts of electric power. Under the enthusiasm of building socialism, Chernobyl Unit 1 was put into operation in 1977, followed by Unit 2 in 1978, Unit 3 in 1981 and Unit 4 in 1983. At this time, units 5 and 6 are under construction, while unit 5 has completed about 80% of the project progress, and units 7 and 8 are also preparing to start construction.
  There is no problem for these units to operate under normal and safe conditions. However, in the event of an accident, when a large amount of radioactive material leaks, there is no protective measure to prevent it from entering the atmosphere. The original design of the reactor body and the main cooling circuit of the steam-water separator are respectively placed in the radiation protection shielding isolation chambers of concrete, and these adjacent isolation chambers form the main power house of the reactor, which is not sealed, can not bear the pressure, and can not play the role of containment, and its safety precautions are worse than those of the pressurized water reactor.
  After the Chernobyl accident, the relevant departments have taken many measures to protect the water resources in this area to a certain extent, to prevent radioactive materials from expanding the scope and to avoid further pollution to the local water system.
Nuclear wastewater, what is nuclear wastewater, and what can we do in the face of nuclear wastewater?
  (Near Kiev, Ukraine, the new bunker of Chernobyl nuclear power plant was officially completed, covering the reactor of Unit 4. Xinhua News Agency reporter Chen Junfeng photo)
  In order to prevent rainfall pollutants near the factory from being transferred into important water systems, the Soviet Union set up a meteorological aircraft fleet to eliminate rain clouds, and threw cartons containing special substances into the clouds in the air to disperse the rain clouds. After throwing these "weather missiles", the rainfall within 30 kilometers of Fiona Fang was completely eliminated, and the Dnieper River flowing through Kiev was prevented from causing serious pollution. When cleaning up the radioactive materials in the factory area, in order to prevent the water system from being polluted by radioactive materials caused by rain, the emergency repair personnel temporarily built a dike in the factory area.
  In essence, the Chernobyl accident was a serious accident caused by excessive reactivity, but it developed into the most serious nuclear power plant accident in human history for the following reasons.First of all, the management is chaotic and the violation of regulations is serious. The operator seriously violated the operation regulations during the operation. Secondly, the reactor has serious defects in design and does not have inherent safety. The reactor has a moderate reactivity coefficient. Although the comprehensive power response coefficient is negative at the normal operating point, the comprehensive effect is positive when the east-west power is lower than 20% of the rated power. Therefore, when the reactor runs below 20% rated power, it is prone to great instability. In the presence of various other external factors (the operator has seriously violated the operating procedures for many times), it is this internal and positive reaction coefficient that leads to the prompt critical of the reactor, resulting in the accident of core breakage. In addition, the lack of containment in the nuclear power plant is also a reason for the serious impact on the environment caused by the accident.
  Iii. Fukushima nuclear power plant accident
  This Fukushima nuclear power plant is located in Shuangye County, Fukushima Industrial Zone, Japan, including the Fukushima Daiichi nuclear power plant (6 units) and the Fukushima II nuclear power plant (4 units), all of which use mixed oxide fuel. Unit 1 of the Fukushima Daiichi nuclear power plant was put into commercial operation in March 1971, and Unit 1 of the second nuclear power plant was put into commercial operation in April 1982. The nuclear reactors of Fukushima nuclear power plant are all single-cycle boiling water reactors with only one cooling loop, and steam is directly generated from the core to drive the steam turbine. Unit 1 has been in service for 40 years, and there are many signs of aging, including embrittlement and corrosion of reactor pressure vessels and corrosion of exhaust gas treatment system in heat exchange area. In February 2011, the Atomic Energy Safety and Security Agency approved the application of Tokyo Electric Power Company for extending the life of Unit 1 of Fukushima Daiichi Nuclear Power Plant, and agreed to extend the life of this unit for 20 years, and officially retired in 2031.
Nuclear wastewater, what is nuclear wastewater, and what can we do in the face of nuclear wastewater?
  (This TV screenshot photo shows white smoke after the explosion of Unit 1 of the Fukushima Daiichi nuclear power plant in northeastern Japan on March 12. )
  At 14: 46 p.m. on March 11th, 2011, with a strong earthquake measuring 9.0 on the Richter scale, the power grid system in northern Japan was severely damaged, resulting in a large-scale power outage in northeastern Japan. The operating 1c3 reactor unit of Fukushima Daiichi Nuclear Power Plant, located in the hardest hit area, immediately took emergency measures-stopping the nuclear fission reaction inside the reactor due to the earthquake and power failure. However, there are still a lot of radioactive fission products in the reactor, which still release energy in the form of decay. This part of the decay heat power is between 25 and 45 MW, which is equivalent to 30,000 to 50,000 electric furnaces burning at the same time. If this part of heat is not transferred out quickly by cooling water, the temperature of the reactor core will rise rapidly and be melted down quickly. Therefore, the reactor still needs long-term cooling after it stops running.
  After the external power grid is cut off, the diesel generator set as an emergency power supply automatically starts to maintain the normal operation of the circulating water cooling system of the reactor. However, the secondary disaster caused by the earthquake-tsunami followed. Less than an hour after the earthquake, waves as high as 10m reached the Fukushima coast, while the breakwater of Fukushima nuclear power plant was less than 6.5m The flood rushed into the nuclear power plant, which quickly flooded the emergency diesel generator set on the shore, making the generator set stop working. At this time, the battery as the third set of emergency power supply is automatically connected. However, the battery pack of Unit 1 was exhausted after 1 hour, and the battery pack of Unit 3 was exhausted after 3.5h hours, and the cooling systems of both units were completely paralyzed. The water pump valve of Unit 2 failed after 3 days, and the cooling system also stopped running. So far, units 1 ~ 3 have been in a state of no cooling. Subsequently, the liquid level in the reactor core container drops, and the fuel rods are exposed to water vapor.
Nuclear wastewater, what is nuclear wastewater, and what can we do in the face of nuclear wastewater?
  (This is the No.1, No.2, No.3 and No.4 reactors (from left to right) photographed in the Fukushima Daiichi nuclear power plant in Japan on October 12, 2017. Xinhua News Agency)
  If the exposed fuel rods are not effectively cooled, the temperature will rise rapidly. When the fuel rod temperature reaches above 1200℃, zirconium alloy will react with water vapor to release a large amount of hydrogen, and the heat released by this reaction will further heat the fuel rod. When the temperature reaches 1800℃, the cladding material begins to melt; When the temperature reaches 2500℃, the fuel rods will melt and collapse to the bottom of the core; When the temperature reaches 2700℃, uranium (U) as fuel will form a high-temperature molten state with zirconium as cladding material.
Nuclear wastewater, what is nuclear wastewater, and what can we do in the face of nuclear wastewater?
  (This photo provided by Tokyo Electric Power Company on April 10th, 2011 shows the No.3 reactor of Fukushima Daiichi Nuclear Power Plant. )
  It is roughly estimated that in the accident, Unit 1 may release 300kg of hydrogen, and Units 2 and 3 may release 300 ~ 1000 kg of hydrogen. This part of hydrogen will enter between the pressure vessel (the second protective barrier of nuclear fuel) and the containment (the third protective barrier of nuclear fuel) through the condensate pool. The design pressure resistance of containment is 4 ~ 5 atm. However, if the internal pressure reaches 8atm or more in an accident, it must be depressurized immediately to avoid explosion and serious radioactive leakage. At this point, the only measure is to take the way of bypass deflation to relieve pressure. Therefore, the mixed gas of hydrogen and water vapor with a small amount of gaseous radioactive substances is discharged into the working area at the upper part of the reactor. Because the concentration of hydrogen in the air exceeds 4%, it will explode. Therefore, hydrogen explosions occurred in units 1 ~ 3, which blew up the roof and walls of the upper part of the building. At the same time, radioactive gas entered the environment and formed radioactive pollution. Fortunately, the structure of the lower part of the reactor is very solid, the explosion did not damage the lower part of the reactor, the pressure vessel and containment did not appear serious damage, and most radioactive materials were still shielded inside the reactor.
  When the earthquake occurred, Units 4 ~ 6 were in shutdown for maintenance, and the spent fuel was stored in the storage pool, but it still needed to be cooled. Also due to the lack of power, the water temperature in storage of spent fuel pool rises rapidly under the action of heat energy generated by radioactive decay, reaching a boiling state. With the evaporation of water vapor, the liquid level drops and the fuel rods are exposed, repeating the process similar to the damage of the fuel rods in the core. What is particularly serious is that the storage of spent fuel pool is not a closed pressure vessel, and the generated gas is easy to leak, and the melted solid radioactive materials are easy to be released into the external space, so it is easier to form a large number of radioactive materials to leak, which is more dangerous. A hydrogen explosion also occurred in Unit 4, and the radiation of radioactive materials around it increased after the explosion.
Nuclear wastewater, what is nuclear wastewater, and what can we do in the face of nuclear wastewater?
  (Nuclear waste water storage tank in Fukushima Daiichi nuclear power plant, Japan. Xinhua News Agency)
  In order to prevent the accident from getting worse, Tokyo Electric Power Company used mobile pumps to inject seawater into the reactor core, containment and even the whole building, which was a last resort emergency measure.However, at the same time, a large number of high-concentration radioactive waste liquid is produced. Improper storage or poor treatment of these waste water will produce secondary disasters and create obstacles for subsequent accident treatment.On April 12, 2011, Japan decided to raise the accident level of Fukushima nuclear power plant to the highest level of 7. With the passage of time, the calorific value of nuclear fuel will be attenuated, and with the access of external power supply, the cooling water circulation system of the reactor has been restored, and the situation of the reactors with accidents has been basically stable. At present, TEPCO has begun to clean up the accident site, and the main task is to treat a large number of high-level radioactive wastewater accumulated on the site.
  On April 13, 2021, the Japanese government announced that it would discharge the nuclear wastewater stored in the Fukushima Daiichi nuclear power plant of Tokyo Electric Power Company into the sea, with a total discharge of more than 1 million tons. It is difficult for the Japanese government to convince the world in this way.
  Fourth, the national "nanny level" plan
  With the successful conclusion of China’s 2020 Central Economic Work Conference in Beijing on December 18th, it was clearly pointed out that eight key tasks should be done well next year. This includes doing a good job in peak carbon dioxide emissions, carbon neutrality and other related work. Because of its high quality, stability, cleanliness, economy, safety and other characteristics, nuclear energy has become the main force of new energy in China, and it is an important energy utilization mode to realize peak carbon dioxide emissions and carbon neutrality in China. Its healthy development is of great significance for improving people’s quality of life, protecting the ecological environment and promoting the harmonious development of social economy. However, the explosion of the Fukushima nuclear power plant in Japan has caused serious nuclear leakage accidents and water resources safety hazards, which has put forward new warnings for China’s nuclear power water resources management. In the 14th Five-Year Plan for People’s Republic of China (PRC)’s National Economic and Social Development and the Outline of Long-term Goals in 2035 (the 14th Five-Year Plan), it is clearly proposed to "promote coastal nuclear power construction safely and steadily". After the Chernobyl nuclear accident and the recent Fukushima nuclear accident, people can’t help asking, how should we "safely and steadily" promote the development of nuclear power? Once a similar serious accident happens, what can the country and we do?
Nuclear wastewater, what is nuclear wastewater, and what can we do in the face of nuclear wastewater?
  (On October 12, 2017, in the Fukushima Daiichi nuclear power plant in Japan, the staff used a radiometer to measure the radiation value near the No.3 reactor. Xinhua News Agency)
  First of all, under the normal operation process of nuclear power plants, the radioactive wastewater discharged from them will also have some impact on the surrounding ecological environment. For nuclear power plants, especially inland nuclear power plants, the influence of low-level radioactive wastewater in its backwater on the downstream water quality safety is a matter of great concern to everyone.As mentioned above, the long-term discharge of low-level radioactive waste liquid may lead to the enrichment of radioactive elements in areas with weak water exchange, and it can also form the enrichment of radioactive elements through sediment adsorption, food chain transmission and groundwater lateral infiltration, thus affecting the water quality in the lower reaches of the river.
  The actual operation monitoring results and mathematical simulation calculation results of nuclear power plants in service in China for many years show that the radioactive concentration is slightly higher than the natural background value only in a certain area of the drainage outlet, and it will return to the natural background value when it exceeds this area, which has not caused radioactive pollution to the surrounding water environment and has not affected the water quality safety in the area. In addition, according to the test results of the concentrations in nearby seawater, seabed sediments and organisms, the results of the radiation dose estimation study of surrounding organisms, especially fish, show that the biological radiation dose is far less than the internationally recommended non-human biological radiation dose limit, and no harmful reactions to organisms have been observed.Therefore, for a normal nuclear power plant, even if it discharges radioactive wastewater into the surrounding water, its radioactivity level is low, and it will not cause great damage to the surrounding environment and ecosystem.After all, all wastewater discharged from nuclear power plants is allowed to be discharged to the outside world after a series of processes to reduce its radioactive concentration below the standard value.
  Secondly, for the residents, the low-level radioactive waste water discharged from nuclear power plants does little harm to human body. As early as the 1980s, China calculated the concentration distribution of liquid discharge from Daya Bay nuclear power station in the nearby sea area by numerical simulation of tidal current pollution diffusion, and on this basis, calculated the dose equivalent of external exposure to human activities in the sea area and internal exposure to local seafood, and calculated the dose rate of low-level radioactive waste liquid to various marine organisms. According to the calculation results, it is concluded that, The discharge of low-level radioactive waste liquid during the normal operation of Daya Bay Nuclear Power Station is not harmful to the health of residents and has no harmful effect on aquatic organisms. Later, the long-term monitoring and investigation results of the actual operation of Daya Bay Nuclear Power Station also confirmed this conclusion. So you don’t have to worry that the radioactivity of its wastewater will harm your own influence.
  In the event of a serious nuclear accident, everyone does not need to panic, because the country has already made enough emergency plans. The only thing we have to do is to comply with the government’s requirements.
  With the occurrence of nuclear accidents and radioactive hazards in history, the concept of safe nuclear power has been deepened and the safety technology of nuclear power has been continuously developed. Nuclear power developing countries and international organizations in the world have established corresponding nuclear safety systems, including nuclear reactor safety technologies (four barriers, safety injection system, decompression and hydrogen elimination system and other technologies to improve safety margin, etc.), safety management standards for nuclear power plants, storage and management specifications for high and low radioactive wastes, technical standards for radioactive material discharge, and emergency response plans and preplans for nuclear accidents in and outside the plant area. These technical specifications for nuclear power safety mainly prevent the hazards caused by nuclear power plant accidents from the perspective of reducing radionuclide leakage and protecting the public from radiation hazards. Although the above safety technologies and measures have controlled the leakage of radionuclides, it is beneficial to reduce its impact on water safety.
  If the nuclear power accident really happens, the government and relevant departments will quickly start emergency countermeasures because the nuclide will spread rapidly through various media and channels, causing radioactive effects. Emergency countermeasures for nuclear power accidents mainly include the following aspects:
  ① Start the emergency plan for nuclear power accident;
  ② Surface water isolation measures and groundwater seepage control measures under accident conditions;
  ③ Moderate and high-level radioactive effluents;
  ④ Measures to seal the sarcophagus;
  ⑤ Emergency water dispatching and regulation measures under the condition of inland nuclear power accident;
  ⑥ Emergency monitoring of water quality in case of accident;
  ⑦ Water safety information release scheme under accident conditions.
Nuclear wastewater, what is nuclear wastewater, and what can we do in the face of nuclear wastewater?
  In addition, as early as 2016, People’s Republic of China (PRC) Ministry of Water Resources has been drafting the corresponding construction and operation system to ensure the safe and stable operation of China’s nuclear industry. The Guidelines for Water Resources Demonstration of Coastal Nuclear Power Construction Projects (SL/T 777-2019) is one of them. This guideline, issued on May 31, 2019 and implemented from August 31, 2019, gives specific guidance in view of the relevant characteristics of water intake, water use and drainage in the construction and operation of coastal nuclear power. This guideline not only puts forward guiding opinions on liquid radioactive wastewater, but also puts forward corresponding general guiding opinions on common pollution forms such as concentrated brine and warm drainage that may be involved. It can be seen that its consideration is comprehensive. Therefore, as an ordinary person, resolutely obeying the government’s command and cooperating with relevant departments is our best performance in reducing accident losses.
  The above are some measures taken by China to promote the development of nuclear power safely and steadily, and I hope that more targeted guidance and regulations can be put forward in the future to protect the stable and reliable operation of nuclear power.
  (Author: Fan Guohua)
  Scientifically: Professor and Doctoral Supervisor of Environmental Science and Engineering, North China Electric Power University, Ding Xiaowen.

Man touched the sun for the first time! Parker probe launched into space.

  CCTV News:Early this morning (12th) local time, that is, this afternoon Beijing time, NASA’s "Parker Solar Detector" was launched from Cape Canaveral, Florida.

  This "car-sized" unmanned probe costs $1.5 billion and is named after American astrophysicist Eugene Parker. It is reported that "Parker Solar Detector" can be closer to the sun than other detectors, which will help people know more about the solar corona and solar wind. The exploration plan is expected to end in June 2025 for a period of seven years.

  Previously, the "Parker Solar Detector" was originally scheduled to be launched in the early morning of the 11 th local time. However, with only 1 minute and 55 seconds left before the launch, the launch was forced to be postponed because the rocket helium device issued a red alarm.

  Parker, the first human coronal probe, stood shoulder to shoulder with the sun.

  As the first "corona detector" in human history, Parker is really shoulder to shoulder with the sun. Although the Parker is only the size of a car, in order to meet multiple tests, scientists armed it with high technology.

  The magical protective cover keeps the detector from being "baked" by the sun.

  The biggest test of detecting the sun is high temperature. When Parker detector works near the sun, it receives about 500 times the solar radiation near the earth. In order to prevent the detector from being "baked" by the sun, engineers designed a protective cover using carbon composite materials. In the working process, the protective cover with a thickness of only 11.43 cm faces the sun, and the highest temperature can reach about 1400 degrees Celsius. However, under its protection, the working environment temperature of the detector is only 29 degrees Celsius, which is cooler than that of Beijing in summer! Although the temperature of the solar wind in the corona is as high as several million degrees, it will not affect the normal work of the detector because of its extremely low density.

  The micro sensor allows the detector to adjust its orientation in time.

  It takes eight minutes for the signal from the sun to reach the earth. Eight minutes may not seem like a long time, but if the instructions are not in place, the Parker is likely to be buried in the sea of fire. Therefore, Parker had a self-protection system at the beginning of its design. Many micro-sensors were distributed on the edge of the shadow of the heat shield. If any one felt the sunlight, the central computer would receive a reminder and adjust the orientation of Parker to ensure safety.

  If all goes well, in 2024, 150 million kilometers away, Parker will send back the first batch of solar data to the earth’s home. Parker is not only exploring the sun, but also exploring the whole universe through the opportunity of exploring the sun.

  Source of this article: CCTV News Synthesis

The National Glossary of Common Sign Language and the National Braille Program will be officially implemented on July 1.

  Cctv newsRecently, the reporter learned from the regular press conference of China Disabled Persons’ Federation that the National Glossary of Common Sign Language and the National Braille Program were examined and approved by the Standardization Examination Committee of state language commission, and released as language norms with the consent of the China Disabled Persons’ Federation, the Ministry of Education and state language commission, and will be implemented on July 1, 2018.

  The National Glossary of Commonly Used Sign Language and the National Braille Program are important language norms to meet the requirements of the Outline of the National Medium-and Long-term Language and Character Reform and Development Plan (2012-2020) and the Thirteenth Five-Year Development Plan of the National Language and Character, to serve the language needs of special people, and to implement the requirements of the 19th National Congress of the Communist Party of China for "running a good special education" and the "Building a Well-off Society in an All-round Way" of the Supreme Leader General Secretary.

  Language is the most important communication tool and information carrier for human beings. There are more than 30 million people with hearing disabilities and visual disabilities in China. Sign language and Braille are the special languages used by them, and they are important components of the national language. Standardizing the use of national common sign language and common Braille is a necessary condition for promoting exchanges between disabled people and regions and promoting the development of education, culture, information technology and other undertakings. Common sign language and Braille are the supplements of the national common language, and their standardization is an important part of promoting and standardizing the use of the national common language, and it is also the basic work of education and cultural undertakings, the development of the cause of the disabled and information construction.

  Since the founding of New China, the country has carried out a series of standardization of sign language and Braille, and achieved remarkable results. The 13th Five-Year Development Plan of National Language and Characters puts forward that "the standardization of sign language braille is an important part of national language and character work". In 2010, the State Language Committee and the China Disabled Persons’ Federation jointly set up a major scientific research project to support the development of national standards for common sign language and Braille. In 2015, two major projects, "National Standard for Universal Sign Language" and "National Standard for Universal Braille", were successfully completed, resulting in two achievements, namely, National Scheme for Universal Sign Language and National Scheme for Universal Braille. The pilot project was carried out in 55 units (including special education colleges, special associations for the disabled and braille publishing units) for one and a half years, and was revised and improved on the basis of the pilot project, forming the "National Common Sign Language"

  The National Common Words List of Sign Language and the National Common Braille Scheme are the summary, inheritance and promotion of the standardization of sign language Braille since the founding of New China, and also a new starting point for the standardization of sign language Braille in the information age. The publication of the National Glossary of Common Sign Language and the National Braille Program enriches and supplements the national common language, and guarantees the language rights of hearing-impaired and vision-impaired people to use sign language and Braille. Facilitating their equal and full participation in social life and sharing the development achievements of building a well-off society in an all-round way will further accelerate the standardization of sign language and Braille, and greatly promote the prosperity and development of culture and education for the disabled.

  The two specifications have recently been published by Huaxia Publishing House and China Braille Publishing House respectively.

Wang Baoqiang’s new work "Octagonal Cage" was presented with hand-painted posters.


1905 movie network news A few days ago, the film director, the leading actor, the leading actor, the leading actor, appeared in the road show of Xiamen Station, exchanged the details of the film with the audience, and chatted about the behind-the-scenes shooting story. The film conveys strength and hope to the audience through the inspirational growth stories of a group of children, and the audience said that "it has been cured". "octagonal cage" was screened nationwide from July 2 to July 5, and will be released nationwide on July 6. As of the five days before the release, the total box office of the film screening and pre-sale has exceeded 200 million.

 

Xiangyang Energy Cures Audience Wang Baoqiang’s "Actor Powder" to "Director Powder"

The atmosphere at the roadshow was hot, with the audience "brushing two times" and "brushing three times", and said that they would continue to enter the cinema with friends and family to support the film. At the scene, some viewers were cured by the energy of breaking through the fate of Teng Hui and the children in the film: "My feeling is that this is a particularly cured film. I am very grateful to Bao Qiangge for making this film and encouraging us to be anxious. A group of people." For the excellent works brought by director Wang Baoqiang this time, some viewers said that they changed from "actor powder" to "director powder" in Wang Baoqiang. The audience also said that whether it is just the right BGM or wonderful fighting, people are excited.

The inspirational spirit of "being like a weed and being indomitable" in the film moved many audiences. After watching the movie, some small fans shouted "This film was made very well". Encouraged, he said, "They can all break through the cage of fate, and we have better conditions. Why not work hard? We should strive to become the pillars of the country. Anything can be done as long as you work hard! " The passionate speech won thunderous applause from the audience present. Director Wang Baoqiang also responded: "This is the significance of making this film, so that after watching it, children will struggle and have strength, and they are not afraid of anything!" At the scene, there were enthusiastic audiences who sent hand-painted movie posters, hoping that "octagonal cage" would sell well at the box office.

 

The master talked about the shooting details and encouraged the audience to inspire energy and fighting spirit.

At the scene, the masters not only shared the behind-the-scenes shooting story, but also chatted with the audience about the detailed presentation and profound expression of the film. Many viewers were poked by Sumu’s game in the film, and the black-and-white picture was impressive. Director Wang Baoqiang also shared the original intention of the design of the play. "These children are born in black and white, and no one pays attention to them, and they have no glory. They just have to rely on their own fists to their fate, and only when they win will they have a rainbow. No one can succeed casually, which also means the change of life. " Director Wang Baoqiang also encouraged everyone to stimulate their own energy: "You can’t doubt yourself when others doubt you. The more difficult it is, the more you should think about the good direction and success. That’s how I have come all the way. Be confident, have a fighting spirit, and inspire your greatest energy. "

Wang Xun, who has cooperated with Wang Baoqiang for many years, called The Octagonal Cage a composition for college entrance examination directed by Wang Baoqiang, and the audience gave full marks for this composition. Wang Xun also shared: "Baoqiang has always maintained his true colors and initial intentions. He has made films like his life experience for everyone in a down-to-earth manner. I believe everyone has already felt what Baoqiang wants to express" and praised him: "In the past six years, from his director’s 1.0 era to the current director’s 2.0 era." Shi Pengyuan also shared his feelings about this cooperation with director Wang Baoqiang: "Because I was very nervous and under great psychological pressure in the first scene, I never found my state. Director Bao Qiang sat on the bed and comforted me, saying that it doesn’t matter, not everyone can instantly enter the state, calm down and feel it slowly, it doesn’t matter, come back if you can’t, it’s okay. " Zhang Wei said that after filming, he gained a lot: "This is a rare opportunity for me, not only to gain experience in performance, but also to gain a group of good friends and the audience’s recognition of our film."


The new darling of the whole family! The new Zhiji LS6 is officially listed from 216,900 yuan

At the tail end of September, a much-anticipated new car – brand new, with an equity price of 216,900 yuan to 279,900 yuan – was launched in Shanghai. It is not just a car, but another perfect fusion of technology and life, a disruptive innovation to the traditional driving experience.

The new LS6, with its unique "digital chassis" and "four-wheel steering" technology, stands out among its class of SUVs, like a knight in a technical robe, elegantly shuttling between the city and nature. Its appearance allows people to find the perfect balance between SUV and sedan, no longer torn by choice. This is a smart SUV that the whole family is rushing to drive and loves to ride, redefining the meaning of driving with the power of technology.

In terms of driving experience, the new Wisdom LS6 is undoubtedly the best. Zero hundred acceleration is 3.48 seconds at the fastest, 100 kilometers braking distance is only 33.76 meters, and the elk test score is as high as 82.7 km/h. These data are not just cold numbers, behind them is the ultimate pursuit of driving texture by engineers. When the vehicle drives over speed bumps or potholes, it is calm and stable, like a gentleman dancing lightly on the dance floor, elegant and without losing power.

The addition of the "Lizard Digital Chassis" has made the new Zhiji LS6 have unlimited possibilities. It can not only continuously realize the iteration of new chassis functions through OTA upgrades, so that the vehicle always maintains a leading position in the industry, but also gives the rear-drive SUV a powerful ability comparable to traditional four-wheel drive. Whether it is city travel or light off-road exploration, the new Zhiji LS6 can be used with ease, perfectly adapting to the user’s diverse and colorful life scenarios.

In terms of intelligent driving, the new Smart Self LS6 also performs well. Equipped with lidar and NVIDIA Orin X chips, it has "no map city NOA capability", and it will be available nationwide upon delivery. This means that no matter where the user is, they can enjoy the convenience and safety brought by high-end smart driving. The improvement of the safety level of IM AD smart driving makes driving easier and more comfortable, as if there is an invisible guardian by their side at all times.

In addition to the improvement of technology and driving experience, the new Smart Self LS6 has also made great efforts in design and comfort. With the design inspiration of St. Martin in the UK, the exterior and interior of the vehicle are full of international style. Soft sculpture design and the use of high-end accessories and fabrics make every drive a visual and tactile feast. The Italian light luxury POPO Sofa and three full relaxation modes are equipped throughout the car, allowing passengers to enjoy the driving pleasure while also feeling the warmth and comfort of home.

The launch of the new Zhiji LS6 is not only a powerful impact on the traditional SUV market, but also a profound exploration of future travel methods. It brings users an unprecedented driving experience with the perfect combination of technology and comfort. In this era of rapid change, the new Zhiji LS6 is undoubtedly a brave pioneer, leading us to a better future.

408 Research Group | Health England: Five Elements of Health-oriented Spatial Planning

The following article comes from environmental design research, written by the Ministry of Public Health of England.

Environmental design research

Urban design research exchange platform based on [408 Research Group]

author

English Ministry of Public Health

Andre Pinto; Jacy McGaw-Césaire;

Carl Petrokofsky,; Paul Pilkington

University of the West of England

Emma Bird; Janet lge; Jilla Burgess-Allen

translate

Meng dancheng and tan yuxing, master students of Tongji university, 408 research group

According to the literature review of the impact of built environment on health, this report draws a series of practical charts to explore the relationship between built environment and natural environment and health results. Based on the literature review of the University of the West of England, this report was summarized by the British Ministry of Public Health in 2017.

http:/eprints.uwe.ac.uk/31390/

brief introduction

Built and natural environment are the key environmental determinants of health and happiness. In this report, "built and natural environment" refers to the physical environment where people live, work and play, including: schools, workplaces, families, communities, parks/entertainment areas, green spaces (i.e. visible grasslands, trees and other vegetation) and waters.

The relationship between health and man-made and natural environment has long been established, and the role of environment in shaping the social, economic and environmental environment that determines health is increasingly recognized and understood. More and more studies show that the environment in which we live is inextricably linked with our health all our lives. For example, the design of our community can affect the level of physical activity, travel mode, social contact, physical and mental health and happiness results. However, it must be recognized that the causal relationship between built environment and health is often complicated, because they are influenced by many factors and sometimes contradictory.

Health map-based on Barton, H. and Grant, M. (2006).

Content summary

This assessment mainly focuses on five aspects of the built and natural environment:

These five aspects of completion and natural environment are considered to be the main aspects affected by local planning policies. These aspects can be designed and shaped by planners to promote health.

I. Neighborhood Design

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Principles of building a healthy neighborhood

Click to enlarge for details.

1. Strengthen the walkability of the neighborhood:

Characteristics of pedestrian-friendly blocks: good street connectivity, mixed land use and compact residential design.

There is evidence that walkable communities can encourage travel and promote physical activity.

Improving recreational and non-recreational destinations (such as grocery stores, schools and other facilities) can also have a positive impact on the social interaction of the elderly.

The improvement of infrastructure can encourage all ages to travel and increase the level of physical activity.

2. Build a complete and compact community:

In communities with higher street connectivity, the grid pattern design is more detailed, which is conducive to mixed land use, improved residential density and non-motorized transportation.

Improving facilities can improve the mobility and social participation of the elderly. Giving priority to the development of schools, recreation centers and social facilities can increase the sports activities of children, teenagers and the elderly.

3. Strengthen interconnection with safe and efficient infrastructure:

Providing infrastructure for walking and cycling and improving public transport can enhance the connectivity of streets.

Improvements in the public sphere. The improvement of the overall environment may reduce the fear of crime. If street lighting is provided in residential areas, traffic accidents will be reduced and pedestrian activities will be increased.

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case

Case 1: Vibrant Street Pedestrians

The "Vibrant Street Pedestrian" project (2008-2012) aims to improve specific walking routes and promote walking in 12 regions of 5 regions in England. The level of community sports activities in these areas is low and the obesity rate is high. Taking Bolton as an example, with the help of local schools, on the way from two residential areas to towns and schools, the project team upgraded the road signs and artistic design to improve the walking route.

Community participation is advocated in the work of living streets; Experience shows that contact with local residents is the best way to understand the problems they live in.

Case 2: Pedestrian block

Lack of exercise is associated with diabetes, heart disease and some cancers. Participants in this study came from 14 cities in 10 countries and surrounding areas.

The communities sampled in this study are different in socio-economic status and walkability. This study uses Geographic Information System (GIS) to measure the density of residents, street connections, public transport stations, the number of parks, mixed land and the nearest public transport points. Researchers wear a small electronic device called an accelerometer around their waist for a week to record every minute of exercise.

The overall survey results of all 14 cities are as follows:

Characteristics of activity-friendly community: residential density, number of public transport parking spots, number of street connections, etc.

Adults living in the most active and friendly communities exercise 48 to 89 minutes more every week than those living in the least active and friendly communities.

These beneficial characteristics are related to sports activities independently. The relationship with physical activity is also linear; For example, the higher the level of residential density. The higher the level of physical activity.

In different cities, the relationship between community characteristics and residents’ sports activities is usually similar.

There is no significant relationship between mixed land use and the nearest public transportation point and the level of physical activity.

Impact on public health and planning professionals:

Similar findings in different cities and different socio-economic groups show that changing the built environment is a solution that can be used to improve international health.

This study strengthens the previous call to prevent major chronic diseases by changing policies in urban planning, public transportation, developing parks and recreational facilities, and increasing sports activities.

In order to keep healthy, adults are advised to do 150 minutes of physical activity every week, and living in an activity-friendly community can provide 32-59% of it.

Because the relationship between activity-friendly community characteristics and sports activities is linear, it means that no matter whether the starting point of urban residents is high or low, the improvement of the built environment is expected to increase sports activities.

The great difference in sports activities between participants living in the most suitable community and those living in the least suitable community provides a strong reason for public health institutions to cooperate with other institutions to create a healthier city, especially urban planning, parks and entertainment, and transportation departments.

Making cities more conducive to activities may be an important part of solving the global problems of death and disease.

A comprehensive method is needed to add as many walking functions as possible to design an activity-friendly community.

Second, the residential design

one

Principles of building healthy housing

Click to enlarge for details.

1. Improve the quality of housing

There is evidence that living in a warm and energy-saving property can improve general health outcomes, reduce breathing conditions, improve mental health and reduce mortality. Renovation to improve housing temperature and energy efficiency may help reduce health inequality among low-income groups, especially the elderly and those with chronic acquired diseases.

High-quality housing can also reduce the risk of accidental injury or death. For example, interventions to improve residential lighting and reduce indoor hazards can improve social outcomes. Reduce the injuries caused by falls of the elderly.

There is evidence that house renovation, including moistureproof, re-roofing and installation of new windows, is related to the improvement of overall health outcomes.

The impact of fuel poverty on health is beyond the scope of research. However, in a report, fuel shortage has been proved to be related to excessive death in winter, increased prevalence of chronic diseases and poor mental health.

However, this review has not found any reliable evidence related to sunlight, ventilation and health results, that is, there is a link between poor indoor air quality and diseases.

2. Increase the supply of affordable housing and diversified housing:

Providing various forms and types of housing is related to increasing physical activity.

The attached conditions of mixed land use and affordable housing are closely related to improving the safety perception nearby. Especially individuals from low-income groups. However, the impact of this housing supply on improving health outcomes and reducing health inequalities is unclear.

3. Increase the provision of affordable housing for groups with specific needs:

Providing housing for vulnerable groups, including adults with mental retardation and adult drug users, may improve social, behavioral and health-related outcomes.

Provide safe and affordable housing for those with chronic diseases, such as AIDS; This can increase participation in health care services.

In addition, the provision of affordable housing and affordable housing has also been proved to reduce participation in risky health-related behaviors.

Providing affordable housing for the homeless can increase participation in medical services, improve the quality of life and increase employment. It has also been proved to help improve mental health.

two

case

Case 1: improving housing and childhood asthma

One in 11 children in Britain suffers from asthma, which is the most common long-term disease in childhood. The NHS spends about 1 billion pounds a year on treating and caring for asthma patients. The Kalisma project aims to improve the living conditions of children with moderate and severe asthma in Rexham and improve their asthma health and quality of life. The study evaluating the project investigated the effect and cost-effectiveness of strengthening indoor ventilation in the homes of 177 children with "moderate" or "severe" asthma in Rexham.

Housing officials of the local government visited each child’s house, and they assessed the areas that needed improvement. The ventilation system is installed in the roof space of the house. The central heating system is improved to reach a certain standard; If the new system does not exist, install the new system. These improvements are free for these families.

After tailor-made ventilation and heating transformation, the proportion of children in the intervention group who changed from "severe" asthma to "moderate" asthma was 17%, while that in the control group was 3%, with an average cost of 1,718 pounds per child. However, the plan has no obvious impact on the cost of medical services. At each point, the specific scale of asthma improvement is 234 pounds, and this measure is considered to be a cost-effective resource use. The analysis shows that there are differences in cost-effectiveness between children with severe asthma and children with mild asthma. Therefore, improving the housing situation of children with "severe" asthma is even more convincing than improving the housing situation of children with "moderate" asthma.

Iii. Food environment

one

Principles of building a healthy food environment

Click to enlarge for details.

1. Provide healthy and affordable food for the general public:

Provide more healthy and affordable food for the general population. It also shows that improving eating behavior, such as increasing the consumption of fruits and vegetables, is related to increasing the access to healthy and affordable vegetables.

The increase of access to unhealthy food retail stores is related to the increase of the weight of the general population, the obesity of children living in low-income areas and the increase of unhealthy eating behavior.

Increasing retail channels to sell healthier food is related to improving eating behavior and adult weight.

2. Strengthen community food infrastructure:

There is a positive relationship between urban agriculture and the improvement of people’s attitude towards healthier food, the increase of sports activities and social contact opportunities, and the increase of fruit and vegetable consumption.

The impact of providing and obtaining allocation funds and adequate garden space on health is beyond the scope of this all-inclusive review. However, the findings of a recent non-systematic literature review show that gardening may have a lot of positive physical and mental health-related effects and results in the distribution environment in Britain.

two

case

Case 1: Garden of Life

The Women’s Environmental Network (WEN) was entrusted by the Ministry of Public Health in Lai Ci, Tauerham, London, to help build 15 community gardens in this area. This 15-month project (April 2014 to July 2015) aims to help improve residents’ well-being by providing more healthy food, and to create community cohesion through joint efforts and develop planting space with the support of Wen’s community garden coordinator.

Fifteen community gardens were successfully established by using two gardening coordinators, who employed 4,485 residents of Tower Hamlets. 178 residents actively participated in gardening activities, mainly growing food, and were supported by training courses, which covered practical and theoretical topics such as base planning, garden design, organic food planting, healthy eating and cooking, and tailored each workshop according to the needs of the group.

The "Garden of Life" project shows that more than half (59%) of the participants (12.5%) have improved their happiness. "Life Garden" provides people with new opportunities to meet their neighbors and build a sense of community around the garden itself. The project has successfully promoted these five ways of happiness; By learning new skills, sharing their achievements with friends and family, and increasing their sports activities, including contact, activity, concern, continuous learning and giving. The project provides local food and encourages healthy eating. Personal feedback highlights a lot of community interests and how gardens help build social capital.

IV. Natural and sustainable environment

one

Guidelines for natural and sustainable environment

Click to enlarge for details.

1. Reduce exposure to environmental hazards

Living in areas with fresh air will have a positive impact on people’s health behavior. The improvement of air quality is related to the increase of physical activities of the elderly.

Exposure to air pollutants has obvious adverse effects on the health of all people. Poor air quality will increase the risk of heart disease and develop into a chronic disease. Such as neonatal complications, cancer, worsening respiratory outcome and child mortality, and so on. It is worth noting that there is consistent evidence that exposure to particulate matter (PM2.5 and PM10) will have adverse effects on health.

Exposure to excessive noise is associated with poor mental health outcomes, especially among the elderly and children. It is also related to the higher anxiety level of adults.

Floods will affect people’s physical and mental health, including increased risk of mental illness and chronic diseases.

In case of flood/disaster, the risk of carbon monoxide poisoning and mental health problems increases.

2. Contact and participation in the natural environment:

Contact and participation in the natural environment are related to many positive health outcomes, including improving physical and mental health. Reduce the risk of cardiovascular disease, death and other chronic diseases.

There is consistent evidence that there are recreational facilities. For example, parks and playgrounds can reduce the risk of obesity among teenagers and increase physical activities. Living near green spaces, such as parks and other open spaces, can improve health.

The improvement of aesthetic parks can increase the visits of children and the elderly and improve physical activities. There is also evidence that improving the appearance of parks can increase the use of children and the elderly and increase physical activity.

Taking part in sports activities in natural environment can improve mental health results more than taking part in sports activities in indoor environment.

3. Adaptation to climate change:

Evidence shows that greening (planting trees) has a cooling effect on the environment, and urban parks are about 1 degree Celsius lower than non-green sites. Empirical research shows that the implementation of green infrastructure may have the ability to reduce the urban heat island effect.

The effects of high temperature and severe cold on health are beyond the scope of this review. However, the UK Climate Change Risk Assessment (CCR, 2017) lists the health risks of extreme temperatures unique to the UK, and these extreme temperatures are likely to increase due to climate change. Extreme heat and cold are associated with potentially fatal diseases, such as heatstroke or hypothermia, and increased death from cardiovascular and respiratory diseases. The rising temperature indicates that there will be more heat waves in Britain. However, due to the aging population, extra deaths caused by cold weather will still be challenging.

Additional findings show that stagnant weather can reduce air quality and have a negative impact on health by trapping warm air and cold air, leading to smog.

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case

Case 1: Would you prefer living in a green urban area?

This study uses large national representative data from the longitudinal survey of British households. The survey contacted the same people at regular intervals (up to 18 consecutive times) and asked them a series of questions every time, including their current work, marital status, address, income and happiness.

The focus of the analysis is those who have moved between different cities in England for 18 years (or less). What researchers want to know is whether they are "happy" (with greater life satisfaction and fewer symptoms of anxiety and depression). In the same period, understand how many green spaces they live in urban areas, the income changes after the changes in their lives, and their marital status.

Even considering other changes in personal life (such as income, employment and marital status), people have higher life satisfaction and fewer symptoms of anxiety and depression when they live in urban areas with better greening. For individuals who migrate from low to high green urban areas, this growth is immediate and lasts for at least three years (the longest post-migration time we can explore). For those who move from high green areas to low green areas, this pattern is not so clear, probably because their motives for moving are more diverse (for example, to get a better job).

Case 2: Mortality of Urban Heat Island Effect during West Midlands Heat Wave

Average temperature model of West Midlands from August 1 to 10, 2003.

W = wolverhampton wanderers, B= Birmingham, C= Coventry.

The researchers established a regional climate model with a resolution of 1 km, covering most areas of the West Midlands. The model includes the urban surface and buildings in the West Midlands, so it can visualize the spatial distribution of temperature in the whole area and quantify the UHI intensity. By deleting the regional model of urban surface and comparing two maps with different temperatures, we can estimate the local temperature of urban surface, and then use the relationship between temperature and mortality to estimate the impact of mortality caused by high temperature on heat island and estimate the increase of temperature caused by climate change.

Health impact assessment is applicable to the whole modeling area, and includes the whole population (about 5 million people) in the area. In the heat wave in 2003, people in the most developed areas were most likely to be affected by heat, and they were most vulnerable to UHI. Older African National Congress (anc) people who have diseases are the most vulnerable to the threat of high temperature. Some housing types (such as loft apartments) will also increase this risk.

Impact on public health and planning professionals: The high-resolution spatial modeling demonstrated here can help highlight the spatial vulnerability of built-up areas. Health impact assessment using rough climate models to assess future temperature impacts may underestimate the mortality associated with high temperatures. In this case, if the urban impact is not included, the health impact assessment will only capture 50% of the mortality rate, and UHI is included. Planners should consider the extra warming caused by UHI effect. And the potential impact on health when planning future infrastructure. Measures such as green space, green roof, blue space or high albedo surface should be considered to reduce these health effects, and the same model is being used for research.

V. Transportation

one

Principles of healthy traffic

Click to enlarge for details.

1. Provide active tourism infrastructure:

Investing in infrastructure to support walking can increase the level of physical activity and improve the mobility of children. Adults and the elderly. By investing in bicycle infrastructure, giving priority to active travel can bring a lot of health benefits. For example, the implementation of new bicycle lanes can improve the cardiovascular status and weight status of children, adults and the elderly.

2. Provision of public transportation:

Evidence shows that combining public transport with other forms of activities such as walking and cycling can improve cardiovascular health. Providing high-quality public transportation for children is related to high-level activities.

Active travel in low pollution areas is related to the increase of physical activity of the elderly. The perception of air pollution seems to constitute an obstacle to participating in outdoor sports activities and active traffic activities.

3. Give priority to active travel and road safety:

Giving priority to pedestrians and cyclists by changing infrastructure is related to positive behavior and health outcomes. For example, separating bicycle and pedestrian infrastructure from road traffic can encourage people to travel actively.

Traffic calming measures, including deceleration and speed limit meter.

Improvements in public areas, such as street lighting, have been proved to increase the participation of other adults in sports activities and reduce the incidence of road traffic collisions.

4. Mobility for all ages and activities:

The architectural environment strategy to promote sports activities can have a positive impact on participating in sports activities.

The positive relationship between active school or work travel and improving cardiovascular outcomes.

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case

Case 1: Improve the connectivity of local walking and cycling routes.

Connect2 is a major new project to promote walking and cycling by improving local walking and cycling routes in 79 locations in the UK. The travel physical activity and carbon emission impact of Connect2 project are mainly evaluated by three case study projects in Cardiff, Kenilworth and Southampton, and residents within 5km.

Each Connect2 base includes a key project to overcome physical obstacles (a bridge in Cardiff Bay, a bridge in Kenilworth’s two lanes, and a boardwalk along the river in Southampton), plus the improvement of the signed roads and feeder roads, leading to key projects. The projects are tailor-made for individual locations, but they all reflect the desire to create new routes for "every day". Travel by foot or bike to schools, shops, parks and villages.

Living near the new route can’t predict the change of activity level after one year. But with those who live far away (walking and cycling for 15.3 minutes more every week, each kilometer is closer; The extra time for total strength activities per week is 12.5 minutes). The new route may replace walking or cycling in the short term, but it will produce new trips in the long term, especially for those who can’t travel to distant destinations by car. These findings support the potential of walking and cycling infrastructure to promote sports activities.

Case 2: Cambridge University Taxi

Improving transportation infrastructure and supporting walking and cycling on the way to and from work may help promote physical activity and improve the health of the population. The commuting and health research of Cambridge University aims to assess whether the investment in new high-quality transportation infrastructure is related to the increase of active commuting; The broader impact of tourism behavior changes on health; Determinants of active commuting land absorption; And how the changes in travel behavior are distributed among the population and related to the broader social background. These goals are achieved through an experimental cohort study, which studies commuters who live within 30 kilometers from Cambridge and work in Cambridge, and combines interesting and supplementary in-depth quantitative and qualitative research.

Guided bus lanes in Cambridgeshire were opened in 2011, including a new bus network, 22km long guided lanes (dedicated bus tracks) and a free road for pedestrians and cyclists.

Commuting practice is complicated and is influenced by various changeable social and environmental factors. Walking and cycling are often included in the long commuting distance, mainly by car or public transport. In the three-year follow-up survey, living closer to the bus line is more likely to greatly increase the proportion of commuting trips involving any active travel, greatly reduce the proportion of completely driving trips, and increase the weekly commuting time. There is a mixed effect model at the individual level, and intervention provides a more positive commuting environment for some people, but not for others. There is evidence that this effect is most obvious among those who report that they do not commute actively at baseline, and the observation results show that there is a link between active commuting, greater overall physical activity, improved health and weight status. These findings provide new empirical support and direction for reconfiguring transportation system to improve population health and reduce health inequality.

conclusion

This review summarizes the evidence of the relationship between built and natural environment and health. The five key aspects of built and natural environment are neighborhood design, housing, healthy food, natural and sustainable environment and transportation. In this paper, all fields of built and natural environment are studied, and the evidence shows that there is an inseparable relationship between built and natural environment and health.

The environment in which people live has a far-reaching impact on health and happiness. In addition to the direct health benefits. The completion and improvement of the natural environment will affect people’s attitude, behavior and perception of the environment. For example, reducing air pollution can improve people’s safety awareness and promote outdoor sports activities and social interaction. That is, to solve the main obstacles to a healthy life and improve the environment that produces unhealthy behaviors. It is essential to establish communication between environmental and health professionals. By incorporating health needs and impacts into the concept, design and planning of infrastructure projects, decision makers, planners and building professionals can promote the development of sustainable communities.

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Original title: 408 Research Group | Health England: Five Elements of Health-oriented Spatial Planning

The Russian-Ukrainian agreement is about to expire. What is the situation at the Ukrainian grain port? Listen to Odessa farmers talk about grain export.

[Global Times special correspondent Wu Duoke Enron Global Times reporter Li Xiaotong] Seven ships carrying food left the Ukrainian port on the 23rd local time and sailed for other countries in Asia and Europe. After the outbreak of the Russian-Ukrainian conflict, more than 20 million tons of Ukrainian grain were stranded in Odessa Port, which once caused the global food price to soar to a record level. Thanks to the "Black Sea Grain Export Agreement", official Ukrainian data show that the country’s agricultural exports have now recovered to the level close to that before the conflict between Russia and Ukraine. However, the agreement is about to expire on November 19. In the context of the intensified conflict between Russia and Ukraine, there is suspense about whether the agreement can be renewed after its expiration. At present, what’s the situation in Ukraine’s grain transportation ports? Can the agreement be renewed? What impact will it have on global food prices? The Global Times reporter investigated this.
"A little breath"
Despite the reduction in grain production, Gourier, a grain farmer living in Odessa, a major Ukrainian grain export port city, benefited from the "Black Sea Grain Export Agreement" reached in July this year, and told the Global Times reporter that the agreement made him breathe a little. The family grain export company he runs has exported about 50 tons of grain in the last two months to solve the problem of grain storage and cash flow for several months. He said that in Odessa and other traditional Ukrainian grain export ports, ships carrying grain go to Ethiopia, Kenya and other countries almost every week.
Reuters said that since the conflict between Russia and Ukraine, Ukrainian ports have suspended the export of grain. After many mediations, Russia, Ukraine, Turkey and the United Nations reached a 120-day grain export agreement on July 22nd this year. The agreement allows Ukrainian grain to be exported through the Black Sea port, ensuring that Russian grain and fertilizer are normally exported without Western sanctions.
Port Odessa, Ukraine. (vision china)
Gourier told reporters that the situation in Odessa has eased slightly in the last two days. Just two weeks ago, explosions could still be heard in the area. At present, the Ukrainian army is still strictly guarding against the sea, and the security control from the port to the urban area is very strict. Odessa is relatively calm during the day, but there are still few pedestrians on the road. Locals will intermittently store basic daily necessities, such as filling up their cars.
"The situation is still not good, especially the recent war in southern Ukraine, which not only reflects the strong counterattack of the Ukrainian army, but also makes us worry that the Russian army will increase its military counterattack." Gourier also mentioned that under the attack of Russian troops, there was a problem in Ukrainian power supply, which brought trouble to future grain storage and transportation. However, Gourier and the people around it believe that Odessa, as an important international port city, will not be easily attacked by Russian troops. In addition, there are many descendants of Russian residents there, and more people hope to call a truce as soon as possible.
Regarding the export of grain trade next year, Gourier said that no one in the same trade dared to make a bold prediction, only to harvest mature grain as soon as possible and transport it out through all safe channels. Regarding the price and profit, he believes that the international food price can’t fall back to the pre-conflict level in the short term, but in fact, Ukrainian small grain merchants never expect to make huge profits. More profit margins have always been controlled by international grain merchants, and they and their peers only want to live a stable life.
Ukraine benefits and Russia is blocked?
According to the information recently released by the Ukrainian Ministry of Agriculture, during the one and a half months from September to mid-October, Ukraine exported 10.4 million tons of cereals, beans, vegetable crops and by-products. This is 1 million tons higher than the export volume in the whole summer of 2022. In the seven and a half months since the conflict between Russia and Ukraine began, 23 million tons of agricultural products have been shipped out of Ukraine.
Has Russia benefited from the grain export agreement? Russia’s export of grain, grain and fertilizer has been restricted, and the export speed has slowed down. Statistics show that in 2021, 54 countries bought Russian wheat, while this year only 24 countries.
Turkish media reported that Vahit Kirisci, Turkey’s Minister of Agriculture and Forestry, confirmed on October 17th that 63% of the 7.5 million tons of agricultural products exported from the Black Sea port were shipped to Europe, 24% to Asia and 13% to Africa. Kirisci mentioned that only 5.6% of the food exported by Ukraine under the relevant food agreement was sent to poor countries.
Russia has repeatedly indicated that it may withdraw from the agreement. The Russian side has repeatedly complained that the West has not taken enough measures to facilitate the export of Russian grain and fertilizer. Russia said that the impact of western sanctions on logistics, payment, shipping and insurance prevented it from exporting grain and fertilizer, and relaxing these restrictions was a key part of the Black Sea Agreement. The US media analysis said that the Moscow authorities may oppose extending the agreement to allow Ukraine to export food beyond the end of November.
"After the Black Sea Grain Export Agreement expires in November, the renewal is not optimistic." Zhang Hong, a researcher at the Russian Institute of Eastern Europe and Central Asia of the Russian Academy of Social Sciences, said in an interview with the Global Times on the 26th that at present, China-Ukraine relations are still very tense, and the two sides have not reached an agreement on security, territory and food, and even gone further and further.
He believes that the resistance to the renewal of the agreement is mainly in Russia. When the Black Sea Grain Export Agreement was reached in July, the additional condition was to lift the export restrictions on Russian agricultural products and fertilizers. Judging from the implementation, the restrictions on Russia are only lifted verbally, and Russia still faces difficulties in selling grain and fertilizer. At the same time, Russia believes that most of the food exported by Ukraine through this agreement flows into developed countries, and only a small part flows to developing countries, which is of little help to alleviate the food problem in developing countries. In this regard, Russia asked for a list of Ukrainian food export destinations.
Zhang Hong believes that from Russia’s point of view, the grain export agreement should benefit both sides or even many parties. If only Uzbekistan benefits, then Russia is not interested in renewing the agreement. Russia shows that it will not renew its contract, and it also wants to put pressure on the West to fulfill its commitment to lift restrictions on Russia.
Consequences of non-renewal
Russia and Ukraine are both major grain exporters in the world. At least about 50 countries in the world import grain from Russia and Ukraine, and at least half of them rely on the grain import trade between Russia and Ukraine. According to the official statistics of Ukraine, this year, the production of corn and wheat in Ukraine has been reduced by 35%-40%. In 2022, Russia’s grain output is expected to reach 150 million tons and wheat output will reach 100 million tons. It is estimated that 50 million tons of grain will be exported this year.
UN Secretary-General antonio guterres and his team are working hard to extend the Black Sea Grain Export Agreement for one year. Zhang Hong believes that if the agreement cannot be renewed, it will have little impact on China and great impact on the world. The main destination of Ukraine’s grain export to Asia is China, and China and Ukraine have long-term commercial contracts. Once Ukraine cannot deliver the grain normally, it needs to fulfill its corresponding obligations. Most importantly, China’s food supply and security are fully guaranteed, and whether the agreement is renewed or not will have little interference with China’s food prices.
Zhang Hong believes that if the agreement cannot be renewed, it will threaten the food security of the whole world, especially developing countries. "Failure to renew the contract will definitely make the international food price rise sharply again, and the cost of food purchase will increase greatly, which will aggravate inflation. Developed countries have the ability to bear these consequences, and ultimately the hunger problem in developing countries, especially poor countries, will further deteriorate. "
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Folk literature and art: take root in the fields and enter the times.

  General Secretary of the Supreme Leader has repeatedly stressed that it is necessary to promote the creative transformation and innovative development of Chinese excellent traditional culture.

  The general secretary’s important exposition on "double innovation" further broadens the development horizon for folk literature and art, promotes the cultural height and carries out the literary mission, which makes folk literature and art eliminate the gap between professional research and practical practice, breaks the dilemma of protection and development, breaks through the bottleneck of traditional folk literature and art empowering contemporary life, and makes it glow with new vitality and vitality in the new era and new life.

  The inheritors of Miao Xiu, Guizhou Province taught the villagers skills.

The pictures in this article are all taken by Li Yun except the signature.

  From rescue and protection to inheritance and communication

  China civil writers and artists associationFrom the beginning of its establishment, the fundamental task was established as "collecting all the folk literature and art materials in our country now and in the past extensively, and sorting them out and studying them with scientific viewpoints and methods". In 1950s, a nationwide movement of collecting and creating folk songs was launched. By the 1980s, we adhered to the academic standpoint of national folk culture and art, and started the investigation and compilation of China Folk Stories, China Ballads and China Proverbs. In the 21st century, faced with the impact of the rapid economic development, under the leadership of President Feng Jicai, China Folk Writers and Artists Association organized and implemented the "China Folk Cultural Heritage Rescue Project" in 2001, and conducted a comprehensive and in-depth survey, filing, publication and research on a series of folk cultural and artistic events and carriers such as woodblock New Year pictures, folk paper-cutting, Tangka culture and traditional villages.

  In the new era, the inheritance, dissemination and development of Chinese excellent traditional culture has become the core task. We carried out the general secretary’s instructions on inheriting Chinese excellent traditional culture and promoting "creative transformation and innovative development", initiated the project of inheriting and developing Chinese excellent traditional culture, led by the China Federation of Literary and Art Circles, and implemented the "Publishing Project of Chinese Folk Literature Department" and "Inheritance and Communication Project of China Folk Craft" by the China Folk Writers Association, systematically collected and disseminated the cultural creations of the people throughout the ages, and made a record for the folk oral literature and craft experience. Among them, the Series of Chinese Folk Literature selects and publishes the original literature of Chinese folk literature on the basis of comprehensively collecting and sorting out the texts of Chinese folk literature and integrating the theoretical system of folk literature, so as to preserve precious cultural memories for the Chinese nation and retain the series of folk literature shared from generation to generation. China Folk Arts and Crafts Integration systematically collects and sorts out folk arts and crafts that have been lost for a long time, filling the gap in the compilation of folk literature and art integration in China. This is to promote the inheritance and transformation of folk crafts from the strategic level of national cultural development, thus playing an active role in cultural inheritance, craft development and rural revitalization.

  From rescue and protection to inheritance and dissemination, we should also maintain and stimulate the unremitting pursuit and creative vitality of the beauty of life among the people with solid folk literature and art practice, so that folk literature and art can have tradition, life, grounding and re-development.

  The inheritor of Tieguanyin production skill is showing the "shaking green" craft.

  From study study to empowerment era

  For decades, China Folk Writers’ Association has been adhering to the tradition of academic establishment, taking rigorous academic research as the support and guarantee for the protection, inheritance and creative development of folk literature and art, uniting experts and folk writers to carry out theoretical research and field research, establishing academic journals and conducting discussion and exchange, laying a solid theoretical foundation for the practical development of folk literature and art, and providing academic support. The research and arrangement of folk literature and art pays special attention to field work, emphasizing the scientificity and comprehensiveness of the collection and research of folk literature and art, including the principle of "faithful record", "paying attention to preserving vivid folk language" and "combining collection and research", etc., and integrating the research experience, research methods and concepts of national folk literature and art into work practice. In the 21st century, during the implementation of "China Folk Cultural Heritage Rescue Project", the academic method system of field work has been further improved.

  In the new era, the research and arrangement of folk literature and art is further extended to practical application, making the achievements of theoretical research not only the method support for protecting practice, but also the core driving force for production development and life construction.

  At present, Weibo, WeChat, short videos and webcasts have become the main platforms for the public, especially young people, to accept culture. On these emerging platforms, the stereotype of folk literature is being changed. Folk literature, such as folk stories, ballads, epics, proverbs, myths and legends, which have been passed down from mouth to mouth for thousands of years, has been activated through micro-movies, short videos, online literature, mobile games, cultural and creative designs and other forms, and has become an important carrier to express the new era and tell a new life.

  Similarly, the study of folk arts and crafts further empowers the design of "national style", explains and explores the characteristics of folk arts and crafts in visual form, craft experience and style, so as to further transform them into the form language and style charm of national style design and become the cultural expression of fashion brand and life trend. Many folk craft resources with logo significance can drive one industrial belt or form a cross-border alliance of brands after being fully excavated, sorted out, researched and explained, and become a veritable "cultural IP".

  The study of folk literature and art has gone from study to field and from text to practice. While devoting itself to constructing the academic system, discipline system and discourse system of China folk literature and art,Make the things, principles and beauty of folk art become the life content, industrial kinetic energy and cultural power of today.Realize creative transformation, take root and grow in the soil of life, blossom and bear fruit.

  Pan Lusheng (second from right) and his colleagues are doing a field survey in Huangshan City. Photo courtesy of China ADPL

  From Professional Guardianship to Social Participation

  The development of folk literature and art can not be separated from the development of people. In the past few decades, through the experience inheritance of "mentoring" in professional fields and the training of professional colleges, the talent construction has achieved positive results. Since the 21st century, with the systematic construction of national intangible cultural heritage protection mechanism and the cultivation and support of inheritors, the construction of talent team related to folk literature and art has further developed.

  In the new era, the cause of folk literature and art has been comprehensively promoted and expanded from guardian training to innovative development. The vitality of folk literature and art lies not only in the long historical tradition and profound cultural accumulation, but also in the new life, new culture and new people. The development of folk literature and art needs not only the inheritance and continuous development of professional talents and professional teams, but also the conscious confidence and concern of the broadest social groups. The inheritance of folk literature and art not only needs the efforts of professional workers, but also needs the joint help of the "Z generation" and the vast number of youth groups in the network era. Therefore, combining the inheritance and improvement of folk literature and art to make the aesthetic tradition and cultural spirit of folk literature and art continue to inherit and develop is the mission entrusted to folk literature and art workers by the times. 、

  In recent years, in order to effectively strengthen cultural heritage, continue to write life epics, and continue to spread the ingenious context, the China Association for Democracy and People’s Livelihood has held various forms of "inheritor training courses" all over the country, and the thematic inheritor training activities for different fields and different age groups have been continuously carried out. At the same time, we will actively promote the participation in the construction of intangible cultural heritage in colleges and universities, the "non-legacy" in primary and secondary schools, carry out a series of cultural activities involving the public, such as "our festivals", build an aesthetic education system of folk literature and art, and give play to the role of folk literature and art in beautifying life, nourishing people’s hearts and moistening things silently.

  As you can see,Folk literature and folk storiesBecome a precious resource to tell the story of China in the new era,Folk craftA fashion industry that empowers the tide of domestic products,Folk activities and traditional festivalsBecome an important cultural experience such as rural tourism,folk songThe strongest voice of sing the chinese’s local art,folk danceInto the aesthetic education in colleges and universities, andResearch achievements of folk literature and artBecome an important part of social science and participate in the construction and development of Chinese modernization … … Folk literature and art return to the essence of life, the essence of people’s creation and people’s writing, thus gaining endless power for innovative development; It also makes the folk literature and art undertakings in the new era deepen and expand from the professional guardian inheritance to the socialized innovative development.

  In the history of the Chinese nation, the creative achievements of folk literature and art are as brilliant as those of Xinghan, so we should watch over and inherit them and carry them forward. The mission, ideals and feelings of folk literature and art require us to take root in the field of life, devote ourselves to the struggle of the times, and advance from the road of rescue, protection, research and cultivation of folk literature and art to a new realm of creative transformation and innovative development and to a broad journey of a better life.

  The inheritor of kite-making skills in Cao Shi is showing the "painting" process.

"The whole world is speaking Chinese"? The official data is coming!

At the press conference held by the Ministry of Education on June 28, the reporter learned that in the past ten years, the language and writing front has insisted on coordinating the two overall situations at home and abroad and promoting exchanges and mutual learning between Chinese and foreign civilizations.

Promote the high-quality development of international Chinese education. We have formulated and published the first standard for foreign learners to comprehensively evaluate their Chinese proficiency, the International Chinese Level Grading Standard for Chinese Education, and actively promoted it to the world. We have published 8 language versions overseas and conducted standard docking with more than 20 language education institutions. Establish overseas Putonghua proficiency test stations and build the brand of Chinese Proficiency Test (HSK). The international status and influence of the Chinese language have increased significantly with the improvement of the country’s comprehensive strength. By the end of 2021, 10 specialized agencies under the United Nations, including UNESCO, the Food and Agriculture Organization of the United Nations and the World Tourism Organization, have adopted Chinese as the official language, more than 180 countries and regions have carried out Chinese education, 76 countries have incorporated Chinese into the national education system, and the number of people studying Chinese in foreign countries has exceeded 25 million, and the cumulative number of people learning and using Chinese has reached nearly 200 million.

Contribute to China’s wisdom and China’s plan. In 2014, the World Language Conference with the theme of "Language Ability and Human Civilization and Social Progress" was jointly held in Suzhou with UNESCO, and the Suzhou Consensus was released; In 2018, the World Conference on the Protection of Language Resources was jointly held in Changsha, and the Yuelu Declaration, the first UNESCO permanent document with the theme of "Protecting Language Diversity", was released, contributing to the wisdom of China and China. Publish the English, Russian, Japanese and Korean versions of the Report on Language Life in China overseas to expand the international influence of China’s language and writing industry.

Strengthen bilateral and multilateral language and cultural exchanges. We will promote international exchanges and cooperation in bilateral and multilateral languages such as China and Russia, China and France, China and Germany, and China and ASEAN, and further expand the "international circle of friends" in China’s language and writing industry. Holding the Sino-Russian Language Policy Forum and the First China — The ASEAN Language and Culture Forum fills the gap in high-level language and culture exchanges between China, Russia, China and ASEAN. Hold a seminar on language policy and planning between China and France, and sign the first bilateral cooperation agreement between the State Language Commission and the French Ministry of Culture on language policy exchange and cooperation. Since 2017, with the theme of "Language makes the world more harmonious and civilization more splendid", three Beijing, China International Language and Culture Expositions and a series of international language and culture forums such as "Language Technology and Human Welfare" have been successfully held to fill the gap in the Chinese-speaking area of the world, attracting nearly 100 representatives of international organizations and foreign diplomatic envoys to China, nearly 1,000 experts to participate in exchanges and discussions, and more than 100,000 people to watch the exhibitions.

The TV series "Ming Long Teenager" ended, witnessing the two-way growth of passionate teachers and students with music.

   The TV series "Ming Long Teenager" was produced by Youku Information Technology (Beijing) Co., Ltd. and Wow Wow Wow, jointly produced by Hunan Education TV Station, with Peng Li and Shang Na as the chief producers, directed by Ding Hei, written by Alex Chen, starring Ruoyun Zhang and Huang Yao. It started broadcasting on CCTV-8 on December 10, 2023, and Youku broadcasted independently on the whole network, and officially closed on CCTV-8 last week.

   This youth campus drama series attracted much attention before its launch, and won the "Annual Expecting Innovative Drama Series" of Weibo Vision Conference, and also topped the list of reservations for Youku Modern Drama Series. After the official broadcast, the heat of the series quickly warmed up and detonated the hot search. The heat in Youku Station broke through 10,000, and Douban scored 8.0, which also caused great concern and discussion on major social platforms.

Different youth group images, all kinds of "life" before the college entrance examination

   "Ming Long Teenager" focuses on the topic of "College Entrance Examination", and mainly tells an inspirational story of a group of senior three students led by an excellent teacher, Lei Ming (Ruoyun Zhang) and a psychological teacher, Sang Xia (Huang Yao), aiming at sprinting for the college entrance examination, bravely pursuing their dreams and interweaving laughter and tears. In order to let the students regain their dreams, Lei Ming and Sang Xia taught students in accordance with their aptitude, guided them to form good study habits, helped each student to face difficulties, improve family relations and establish an optimistic attitude, thus winning the trust and love of the students and getting growth and healing from each other. In the end, these students started a new life journey by trying to get into an ideal university.

   The play continues the deep shaping of group images and individuals by director Ding Hei, and depicts a vivid and unique group image of youth for the audience. The drama focuses on the campus of senior three, focusing on students with different problems, teachers with conflicting ideas and parents with different styles … telling their daily lives and personal experiences, and sketching out the growth trajectory and mood changes of the characters in narrative and camera performance, which gives the characters a "real" foundation and deepens the audience’s substitution, understanding and understanding of stories and characters.

    Several main characters who focus on ink are also the epitome of "life". While creating a group image, the drama also extends the discussion to the eager attention to topics such as psychological pressure, school education and family education of freshmen in senior three, so as to make the fate of the characters in the story reflect you and me outside the story, which not only takes care of reality deeply, but also has more humanistic care temperature.

Rooted in the "real" soil, realistic themes are combined with romanticism.

   The "truth" and "temperature" of characters and emotions in Ming Long Teenager also benefit from the creative team’s deep cultivation in creation and various stages. It is understood that the creative team of the drama has been preparing for the drama for nearly three years, and after the project started, it has carried out policy study and investigation for nine months, visited more than 10 colleges and universities, conducted in-depth interviews with more than 300 teachers and students, and invited a "learning guide" with the experience of "attacking the college entrance examination" to check the details of the learning methods in the drama. A large number of research on real people and events, rooted in the polishing of reality, laid the foundation for the real background color and life-oriented expression of this work. The drama also uses romantic expression techniques and expressions, showing a positive mood and youthful appearance, which makes this story about "turning over against the wind and attacking the college entrance examination" bloody and establishes emotional connection with the audience.

   Taking truth as the basic point, taking emotion as the core, combining reality with romance, and paying attention to the retention and extension of ambiguity are also closely linked and hoped to be realized by the music creation team of Ming Long Juvenile. Yang Bingyin, a young composer and music producer, led the team of Bing Yin to produce the soundtrack and interludes in the play. Before the official shooting, the team started the initial planning and creative preparation in music, which is another cooperation with the director team of Ding Hei after Police Honor. Regarding the sharing and thinking in the creative process, Yang Bingyin said: "Although this drama is a campus theme, in fact, many contents and topics are quite profound and realistic, but it also has the imagination and enthusiasm to make people step out of reality. Balancing these two aspects, helping to better restore the authenticity of stories and scenes, and helping to establish characterization are the topics of our music creation this time. "

Healing, reconciliation and resonance, witnessing two-way growth with music.

   The rich amount of music and the stylization of the combination of music with pictures and stories have also left a deep impression on the audience of Ming Long Teenager. The soundtrack of the play uses diverse and innovative musical elements, and presents the teenagers’ special dream-chasing journey in the music scene after scene in the variety of styles such as pop, electronics and rock. In the collision of different notes, music wrote their own unique keywords for each character. In addition to the enthusiasm and blood of the college entrance examination, there is also the youth and ignorance that belong to the student era, and the confusion and shaking when pursuing the heart. In this growth process, endless warmth, firmness and beauty grow. Teachers around teenagers are not only silently expecting and indulging, but also encouraging and moving forward, and achieving mutual growth.

   "Understanding" and "reconciliation" are the key words mentioned by producer Yang Bingyin for this play. "The characters in this drama are actually very three-dimensional and complicated. Everyone is constantly learning about themselves and recognizing themselves. They are all on the road to reconciliation with the past and themselves. This is actually a very difficult thing to grow up. Many plots and lines have multiple meanings, so music should also be able to show ambiguity, rather than deliberately and subjectively guiding and controlling, in order to give the audience as much understanding and feeling as possible. " Yang Bingyin said: "In addition, the production volume is really large, and the choice of music and music style is also very important. We also hope that in such rich music, different scenes and characters can be more visualized, and at the same time, more innovations can be displayed, so that everyone can hear refreshing things while seeing good stories, which can make everyone feel more and resonate."

In addition to the soundtrack, Yang Bingyin and his team also created many episodes of characters’ plots, and at the same time tailored several songs for the music-loving "Jiang Qinglang" in the play. The episode "To the Best Teenager" was written by Wang Xiaoqian, composed by Yang Bingyin, and produced by Bingyin. In the play, it appeared as an egg at the end of the film, combined with the pictures of teachers cheering for the students of Minglong. Textbooks and life may have to face difficult problems, but in the end, they and we will get the answer to growth. In order to lead the students to improve their English learning enthusiasm, Lei Ming sang the English version of "Ordinary Day", which was composed by Mao and composed by Wang Xiaoqian, and recorded the beautiful memories of Class 11 and youth in the song. "Double-faced Man" is composed by Wang Xiaoqian and Fu Xin, composed by Yang Bingyin, and produced by the sound. The song reveals and presents the confusion and rebellion of adolescence in the form of rap, and at the same time, it combines the picture plot to realize the emotional expression of the role at the musical level. In the last few episodes, the key plots, written by Orphan Ya, composed by Yang Bingyin and Orphan Ya, and produced by Bingyin and Chuangsheng, also met the audience one after another. The two songs are presented in the form of stage performances, which write those true feelings and thoughts on self and the world into the rhyme of each sentence, reflect the growth and reconciliation of teenagers along the way, and express their sincerity and enthusiasm for their dreams.

Last Friday, CMG’s second annual China TV drama festival hosted by China Central Radio and Television General Station was held in Beijing. The event reviewed the blooming and splendid dramas in China in the past year, and the actors and creators of Ming Long Boys were also invited to participate. Nowadays, more and more high-quality dramas with deep creativity, polishing details and focusing on innovation have flooded into the market, representing the high-quality creative power of China TV series today. In the future, we also expect more fine TV dramas to continue to enter the public eye.