From stumbling to counterattack all the way, the original "Fengyun" is such a satellite.

  Fengyun-4 Satellite Photo courtesy of China Aerospace Science and Technology Corporation No.8 Institute

  During the Tenth Five-Year Plan period, China plans to launch seven Fengyun meteorological satellites. By 2035, China’s meteorological comprehensive strength will reach the world advanced level, and meteorology will be deeply integrated into people’s livelihood security and industry development, and a meteorological power will be basically built. ]

  Start wechat, a lonely villain stares at the earth. The first complete photo of the Earth released by NASA to the world is called "Blue Marbles". It was shot by Apollo 17 astronauts, and the perspective was over the African continent.

  Whenever Chen Xiaojie, deputy director of the General Office of Meteorology and Environment of the Eighth Academy of China Aerospace Science and Technology Corporation and chief designer of Fengyun-4 satellite, opens WeChat, his thoughts will always fly to September 25, 2017 involuntarily.

  That day was the day when China’s new generation of geostationary orbit meteorological satellite Fengyun-4 A star was officially delivered and put into use, and the WeChat startup screen changed its face accordingly — — The image is still the blue earth, but the location of the exhibition has become the Eastern Hemisphere, and it was Fengyun No.4 A star that shot it.

  "The photo perspective is the earth observed from above China, and that feeling is very different." Chen Xiaojie has been deeply impressed by this.

  At the beginning of 1969, a rare freezing rain and snow disaster swept half of China. At that time, only the Soviet Union and the United States had meteorological satellites in the world. Although China can accept foreign satellite cloud picture, it is only a simple "black-and-white image", and it is impossible to mine the original data and retrieve various meteorological elements, so its application is greatly limited.

  On January 29, 1969, Premier Zhou Enlai put forward: "We should quickly change our backwardness and build our own meteorological satellite." In February 1970, Premier Zhou personally issued documents from the Central Committee of the Communist Party of China, the State Council and the Central Military Commission, and assigned the task of developing meteorological satellites. As a result, China’s meteorological satellite industry officially started.

  Up to now, China has successfully launched 17 Fengyun series meteorological satellites, and 7 of them are currently in orbit. These satellites, which are the most "aware of people’s warmth and coldness", observe the changes of the earth in space, prompting us to add clothes and umbrellas.

  According to the China Meteorological Bureau, China plans to launch Fengyun-4 B and Fengyun-3 E satellites in 2021, and seven Fengyun meteorological satellites are planned to be launched during the 14th Five-Year Plan period. "By 2035, China will establish a meteorological business system with accurate monitoring, accurate forecasting and fine service. The comprehensive meteorological strength will reach the world advanced level, and the meteorology will be deeply integrated into people’s livelihood security and industry development, and a meteorological power will be basically built." Zhuang Guotai, director of the bureau, revealed.

  The fate was ill-fated, and the first star "died" after 39 days of launch.

  On September 4th, 1988, Astrin Zhong, the chief designer of Fengyun-1 satellite, stood on the tower with a height of tens of meters, and his heart turned upside down.

  That was the day when China’s first Fengyun satellite was originally planned to be launched. However, after the commander issued the "5-hour preparation" instruction, the control center suddenly lost all the telemetry signals of the satellite and the launch was terminated.

  Ren Xinmin, chief designer of Fengyun-1 satellite project, ordered on-site inspection. Meng Zhizhong and Xu Fuxiang, then the chief designer of the attitude control system, climbed the tower with the test team and nervously performed "surgery" on the satellite. At this time, there are no guardrails around, and there are rockets filled with propellant under the satellite. Every movement should be careful.

  What makes Meng Zhizhong feel stressed is that the scheduled launch time is approaching, and the stations around the country are already ready, constantly calling for news; From Beijing to Shanghai and then to the launch center, soldiers were deployed on the communication lines along the way, and everyone was waiting for the news of the launch at their posts. The troubleshooting work on the tower is progressing slowly, and Meng Zhizhong is both anxious and guilty.

  It was not until the evening that the cause of the fault was finally found out. It was the CMOS circuit of the telemeter that had a "bolt lock" under certain circumstances. The test team took down the telemeter and repaired it overnight, and put it back on the satellite the next morning.

  Three days later, Fengyun-1 A, which took nearly 10 years to develop, was successfully launched, making China the third country in the world with polar-orbiting meteorological satellites. However, after just over a month, the accident happened again.

  On this day, the staff of the National Satellite Meteorological Center found that the received satellite cloud image gradually deviated, and finally only the arc of the earth could be seen. The satellite is out of control.

  Zou Jingmeng, then director of China Meteorological Bureau, asked eagerly: Is there any other way? Meng Zhizhong was speechless.

  Because there was no backup equipment installed, Fengyun-1 A star "died" in space in full view, only 39 days before its launch.

  A rare satellite ground rescue in the history of world space flight

  On September 3, 1990, Fengyun-1 B star was successfully launched. It can provide weather forecast for the 11th Asian Games in time, but after only ten days, it is abnormal.

  Scientific and technical personnel completed the repair in time, but found a thorny problem: the satellite did not carry out anti-radiation reinforcement in component selection and software design. This loophole exposed the computer circuit chip to the bombardment of high-energy particles in space, which easily led to the problem of single event overturning, which would lead to computer malfunction and attitude control system failure at any time.

  The loopholes cannot be filled, and the only way is to strengthen the monitoring of satellites and correct problems in time.

  Astrin Zhonghe and Xu Fuxiang led the scientific and technical personnel to be divided into two working groups, which were on duty in Xi ‘an Satellite TT&C Center in turn. They use the opportunity of the satellite crossing the border six times a day to monitor its on-orbit work.

  On February 14, 1991, in the New Year’s Eve, the satellite cloud picture suddenly distorted and rolled. In the next 75 days, the staff took turns on duty without interruption and began a rare satellite ground rescue operation in the history of world space. Like emergency doctors, they have revived Fengyun-1 B star again and again. However, frequent "operations" have greatly damaged the satellite’s vitality and greatly reduced its life.

  Eventually, Fengyun-1 B star worked intermittently until November 1992, and accumulated normal operation for 285 days in orbit, which failed to reach the design life index of one year.

  Academician Sun Jiadong, a meritorious scientist with two bombs and one satellite, has been with Fengyun for more than 40 years as the chief designer of Fengyun-2 satellite project. He once said: "I have been a chief satellite engineer in my life, and Fengyun-2 is the most unforgettable."

  In February 1994, China’s first geostationary orbit meteorological satellite — — Fengyun-2 01 came to xichang satellite launch center. After many tests, the satellite was successfully refueled and fitted with a solid apogee engine, only to be fully tested for the last time before the transition.

  On the morning of April 2, the test began. At about 10: 50, the solid apogee engine burned and exploded, and black smoke came out with red flames. The observation window glass was shattered and the power supply of the factory building was interrupted.

  This major accident claimed the life of an assembly worker and caused more than 30 test team members to be injured and hospitalized. Astronauts suffered a painful lesson because they did not understand the performance and danger of hydrazine fuel and ignored the requirements of anti-static and environmental temperature and humidity.

  Fengyun-1 star C made a beautiful "turnaround"

  Successive accidents have caused Fengyun satellite development to fall into a downturn. But the astronauts who fell again and again stood up stubbornly again and again. They compiled heavy lessons into a book and became a typical teaching material to guide the follow-up work.

  Meng Zhizhong was 60 years old when he was appointed to preside over the development of Fengyun-1 C star. The previous setbacks made him unwilling. He analyzed that the reason why Fengyun-1 A-Star and B-Star failed to complete their tasks was not that the performance indicators did not meet the requirements, but that they died halfway due to low reliability. Developing a long-term, reliable and stable operational meteorological satellite has become the common goal of the team.

  On May 10th, 1999, Fengyun-1 C star was successfully launched. This launch was later selected as one of the three major events in the last year of the 20th century in China, which was engraved on the China Millennium Monument. In August 2000, the World Meteorological Organization listed the satellite in the world operational meteorological satellite sequence.

  Fengyun-1 star C made a beautiful "turnaround". It has been running stably in orbit for 7 years, and is known as "the first long-lived satellite in sun-synchronous orbit", which has opened a new page in China’s meteorological satellite industry.

  Since then, Fengyun Satellite’s development has become smoother and smoother.

  In 2002, Fengyun-1 D star was launched, becoming one of the longest-lived remote sensing satellites in China. Fengyun-2 C satellite launched in 2004 was the most widely used operational satellite in China at that time, and was highly appraised by the World Meteorological Organization, and was listed as one of the important operational satellites of the global meteorological satellite observation network. From 2006 to 2014, China launched four Fengyun-2 series satellites, which provoked the burden of meteorological support for major national events.

  In 2008, on the eve of the opening of the Beijing Olympic Games, Fengyun-3, China’s second-generation sun-synchronous orbit meteorological satellite, was launched. Since then, Fengyun-3′ s B, C and D stars have been launched one after another, realizing the upgrading of Fengyun-1. They operate in a network with complementary functions, and realize the detection from two-dimensional imaging to three-dimensional detection, and from single optics to full-spectrum wide-spectrum detection, which greatly shortens the update time of global numerical weather forecast, prolongs the forecasting time and further improves the forecasting accuracy.

  In the international "dark war", one star does the work of two stars.

  On January 15, 2021, the price of Taihu short-legged vegetables in Shanghai vegetable market doubled compared with 10 days ago. The local media found that this has something to do with the recent cold wave. According to the forecast of the Meteorological Observatory, there was another cold wave on January 16, and the local vegetable supply unit deployed ahead of schedule to fully carry out the emergency supply work.

  Weather changes affect people’s clothing, travel and even all aspects of life. Tang Shihao, director of the Remote Sensing Application Office of the National Satellite Meteorological Center and chief designer of Fengyun Meteorological Satellite Application System, said that it is only one of Fengyun Satellite’s "basic skills" to provide support for accurately forecasting the cold wave and monitoring its development and influence.

  In particular, a new generation of geostationary meteorological satellites — — The successful launch of Fengyun-4 A satellite has made China’s meteorological satellite technology change from following and running in parallel to running in parallel and leading, which has further improved China’s meteorological comprehensive ability.

  Recalling the development and launch of Fengyun-4 A star, Chen Xiaojie felt like a fierce competition.

  In 2016, as if agreed in advance, the development of a new generation of geostationary meteorological satellites in China, the United States, Europe and Japan all reached a critical juncture, and everyone was secretly struggling.

  In addition to the fact that European satellites have not yet been launched for various reasons, in early November 2016, Japan took the lead in launching the "Himawari 9" satellite. This satellite adopts many American technologies and products and will replace the "Sunflower 8" previously launched by the country.

  On November 19th, a new generation of geostationary meteorological satellite GOES-R was launched. According to industry evaluation, compared with previous meteorological satellites, the leap brought by this satellite is like changing from black-and-white TV to high-definition color TV.

  On December 11th, China’s Fengyun-4 A star was launched.

  Chen Xiaojie said that Fengyun-4 A star not only leads the world in its comprehensive observation ability to the earth, but also is the first geostationary meteorological satellite in the world to realize the comprehensive observation of "multi-spectral two-dimensional imaging+hyperspectral three-dimensional detection+ultra-narrow-band lightning imaging" by a single satellite.

  In the past, the interference between vertical detection instruments and imaging observation instruments has always been an international problem. The previous practice in Europe was to put the two on two satellites respectively.

  Compared with international competitors, the performance of Fengyun-4 A star is not inferior. Some people describe this star as doing the work of two stars at the same time.

  According to Dong Yaohai, chief designer of Fengyun-4 satellite system, the satellite has realized the simultaneous operation of multiple loads with moving optical components through the self-developed SAST-5000 satellite platform, and all loads coexist harmoniously.

  The multi-channel scanning imaging radiometer carried by the satellite was the most advanced radiation imager for geostationary satellites in China at that time, which could scan the eastern hemisphere every 15 minutes with the highest spatial resolution of 500 meters. "The accuracy of 500 meters is equivalent to placing a few candles a few kilometers away for a geostationary orbit close to 36,000 kilometers high, and it can be seen clearly." Dong Yaohai said that this accuracy is equivalent to the GOES-R satellite launched by the United States at the same time.

  At the same time, the interferometric atmospheric vertical detector carried by Fengyun-4 A star can detect the atmosphere vertically; China’s first satellite-borne lightning imager can be used to stare at China and its surrounding areas with wide-angle lenses, and it can take 500 photos every second to record the frequency and intensity of lightning.

  Fifteen years later, meteorological comprehensive strength leads the world.

  Starting this year, Fengyun family will be "added".

  According to the China Meteorological Bureau, the second satellite of Fengyun-4 — — Fengyun-4 B star, the development work has been basically completed. According to the plan, it will be launched this year.

  The load of Fengyun-4 B star has been optimized. For example, multi-channel scanning imaging radiometer, some channels have been locally optimized; The spatial resolution of the atmospheric vertical detector has also been improved.

  At the same time, a fast imager has been added to this satellite, which can flexibly observe different areas according to instructions by adjusting the lens, and the resolution is the highest among the global geostationary meteorological satellites at present.

  Tang Shihao is looking forward to this. He said that at present, Fengyun-4 A star images China and its surrounding areas once every five minutes, with the highest resolution of 500 meters. Some weather phenomena with smaller scale and shorter duration may be missed. The fast imager carried by Fengyun-4 B star can image millions of square kilometers once a minute, with the highest resolution of about 250 meters, which has stronger monitoring ability for small and medium-sized weather systems.

  E-Star Fengyun-3, which China plans to launch this year, will be the world’s first meteorological satellite in the morning and evening orbit. At present, the global polar-orbiting meteorological satellites are all in the morning or afternoon orbit, which means that their observation period is in the morning or afternoon. The E-Star Fengyun-3 will be observed at dawn and dusk, which can make up for the current observation gap and improve the accuracy and timeliness of global numerical weather forecast.

  Tang Shihao introduced that after the E-Star Fengyun-3 and Fengyun-3 series satellites currently in orbit are networked, the daily observation time distribution will be more uniform, and the meteorological data of morning and evening time will be obtained. In addition, in the past, Fengyun satellite could only be observed by infrared and microwave instruments at night, while Fengyun-3 E-star was equipped with low-light-level observation equipment, which had the ability to observe visible light at night.

  The reporter learned from the China Meteorological Bureau that the Fengyun satellite planned to be launched in China during the "14th Five-Year Plan" period will further enrich its orbital types. For example, in the geostationary orbit, there will be Fengyun satellites with different orbital positions, which will be observed by optical and microwave means. In low orbit, in addition to the morning and afternoon orbit and the morning and dusk orbit, China will also launch precipitation satellites to the low inclination orbit, mainly to monitor the precipitation in low latitudes.

  Tang Shihao said that the development of Fengyun satellite in the future mainly includes improving the monitoring ability of atmospheric wind field, cloud and rain atmosphere and its vertical structure, improving monitoring accuracy and monitoring timeliness, and enhancing the cooperative mobile observation ability of satellites.

  Produced by Shentong Studio

  Written by: Reporter Fu Yifei

  Planning: Chen Lei

Five pictures to understand the annual report cards of the three giants of home appliances

[annual report analysis]Gree Electric, Midea Group and Haier Zhijia, the three giants of home appliances, have released their 2020 financial reports one after another. It also allows investors to comprehensively compare the "transcripts" of the three giants last year.

Comparison of income and profit

The income and profit are still the same, and Midea Group has won the double champion. Midea Group achieved a revenue of 285.7 billion yuan last year, a year-on-year increase of 2.27%; The net profit attributable to shareholders of the parent company was 27.223 billion yuan, a year-on-year increase of 12.44%. Midea Group’s revenue has been growing in single digits for three consecutive years from 2018 to 2020, but its net profit has maintained double-digit growth, which is also commendable.

Gree Electric achieved a revenue of 170.5 billion yuan last year, down 15% year-on-year; The net profit attributable to shareholders of the parent company was 22.175 billion yuan, a year-on-year decrease of 10.21%. Both revenue and net profit are double-digit refinement.

Gree Electric’s income declined for the first time in many years, but its net profit declined for two consecutive years, which also made Gree Electric give up the throne of the first profit in the home appliance industry. In 2019, Midea Group’s net profit returned to its mother was 24.2 billion yuan, lower than Gree Electric’s 24.7 billion yuan.

Haier Zhijia achieved a revenue of 209.7 billion yuan last year, a year-on-year increase of 4.46%; The net profit attributable to shareholders of the parent company was 8.877 billion yuan, a year-on-year increase of 8.2%. For Haier Zhijia, after its income surpassed that of Gree Electric in 2019, its income surpassed that of Gree Electric again last year. But the net profit is much less than that of Gree Electric.

Comparison of gross profit margin and net interest rate

Although Midea’s group income is 100 billion yuan more than that of Gree Electric, its net profit is only about 5 billion yuan more than that of Gree. Haier Zhijia’s income is nearly 40 billion yuan more than that of Gree Electric, but its net profit is less than half that of Gree Electric, which is related to the gross profit margin.

Last year, the gross profit margin of Gree Electric’s sales was 26.14% and the net profit margin was 13.25%. Compared with 2019, the gross profit margin was reduced by about 1.44 percentage points, but the net profit margin increased by 0.72 percentage points.

Midea Group’s gross sales margin is 25.11% and its net sales profit rate is 9.68%. Compared with Gree Electric, Midea Group’s gross profit margin is about 1 percentage point lower, but its net profit rate is 4.57 percentage points lower.

Haier Zhijia’s gross profit margin is 29.68% and its net profit margin is 5.4%. Among the three giants of home appliances, Haier Zhijia’s gross profit margin is even the highest. Why is the net profit rate the lowest?

It is related to four expense rates, namely, sales expenses, management expenses, financial expenses and R&D expense rates. The data shows that the sum of these four expense rates of Haier Zhijia is 27.94%; Midea’s group rate is 19.03%; Gree Electric’s rate is 15.74%, which is much lower than Haier Zhijia and Midea Group.

Comparing the sales rates with the largest proportion, Gree Electric is 7.65%, Midea Group is 9.63%, and Haier Zhijia is 16.04%, which is more than twice that of Gree Electric. In other words, last year, the sales expenses of Gree Electric and Midea Group were 13 billion yuan and 27.5 billion yuan respectively, while the sales expenses of Haier Zhijia were 33.6 billion yuan.

Comparison of return on assets and price-earnings ratio

Return on assets is divided into return on total assets (ROA) and return on equity (ROE). ROA in Gree Electric last year was 8.43%, and the average ROE was 18.88%.

Midea Group’s ROA was 8.85% last year, with an average ROE of 24.84%. Haier Zhijia is 7.37% and 15.48% respectively. Similarly, Midea Group takes the lead, followed by Gree and Haier.

Before the market opened on April 30, Midea Group’s price-earnings ratio PE(TTM) was 24 times, and its market value was 587.5 billion yuan. Gree Electric PE is 15 times, with a market value of 358 billion yuan; Haier Zhijia PE is 35 times, and its market value is 308.3 billion yuan, which is pressing Gree Electric.

Although Haier Zhijia has the lowest market value, the market gives it a higher valuation, even more than double that of Gree Electric. In terms of the total market value, Midea Group still holds the throne of "Home Appliances One Brother".

Experts on the Defence of Blue Sky (5) Dust is an important source of particulate matter, and control should be continuously strengthened.

  The causes, sources and control of heavy air pollution are one of the hot issues in society. During the Spring Festival and epidemic control, the National Joint Center for Air Pollution Prevention and Control thoroughly analyzed the characteristics and laws of the heavy pollution process, providing continuous scientific and technological support for winning the blue sky defense war in 2020. The National Joint Center for Air Pollution Prevention and Control has recently launched a series of expert interpretations, which we forwarded to further respond to public concerns. In this issue, experts from Nankai University and china environmental science Research Institute are invited to analyze and interpret the impact of dust on air pollution.
  1. Dust is atmospheric particulate matter (PM10And PM2.5Etc.).
  According to China’s Technical Code for Prevention and Control of Urban Dust Pollution (HJT393-2007), dust sources can be divided into four categories: road dust, construction dust, soil dust and yard dust. The research results of source inventory show that the emission of PM10 in Beijing-Tianjin-Hebei and the surrounding "2+26" cities reaches 1.7 million tons/year, and PM2.5It reaches 450,000 tons/year, of which roads and construction are the main sources of dust in most cities, and together they can account for more than 80% of the total dust emission. The results of urban particulate matter source analysis for many years also show that although dust has been controlled to some extent in recent years, the sharing rate of dust in most cities to PM2.5 concentration is still 15%~25%.
  Urban dust has the characteristics of uncertain source intensity, random emission, diverse emission locations and types. The impact of dust is mainly affected by two factors: one is the amount of particles (such as road dust load) and the physical properties of particles (such as water content) on the carrier (such as roads) carrying dust, and the other is the disturbance degree of human activities or natural forces. The more dust accumulated, the greater the disturbance, and the more serious the impact of dust. There are a lot of cars driving in the road environment, and human activities are very intense, so road dust is one of the most important sources of dust. But the problem is that our roads don’t produce much particulate matter, and the road dust is very high on most roads. Many roads have more than 10 grams/square meter of dust, and good roads only have 1-2 grams/square meter, or even lower. So where does the dust on the road mainly come from? The research results for many years show that road dust is closely related to the material transportation in the construction site. In addition to the dust pollution caused by various construction operations (especially ground-breaking operations), it is more important to have its "long chain" emission, that is, a construction site will cause a large area of dust pollution due to the transportation and scattering of various raw materials, earthwork and other materials. Therefore, construction and roads are important sources of dust, and are the focus of urban dust control.
  2. Changes in the activity level of dust-related pollution sources during the Spring Festival and the epidemic.
  According to the big data of construction machinery based on the Internet of Things, the average operating rate of construction machinery during the Spring Festival in 2020 was about 5%, and it was about 23% in the same period in 2019, and the operating rate of construction machinery decreased by 77% year-on-year. After the Spring Festival in 2020, affected by the epidemic (from the seventh day to the 23rd day of the first month), the operating rate of construction machinery did not gradually return to the pre-holiday level as in previous years, but the operating rate remained at around 7%, and it did not show signs of recovery until after the 24th day of the first month. This shows that there are fewer construction projects and fewer "direct sources" of construction dust.
  Operating rate of construction machinery during the Spring Festival in 2019 and 2020
  (Source: Tiejia. com-Rolling Broadcasting of Operating Rate of National Construction Machinery)
  In addition, motor vehicle traffic is also significantly affected by the epidemic. In 2020, the cross-sectional traffic volume of passenger cars and trucks in the six provinces of Beijing, Tianjin and Lu Yu will be 50% and 53% respectively compared with last year. From the first day of the first month to the seventh day of the first month in 2019, the cross-section traffic volume increased rapidly from a low value, and the cross-section traffic volume on the seventh day of the first month has basically reached a normal level, while in the same period in 2020, the cross-section traffic volume has remained at a low level due to the epidemic situation. This shows that there are fewer cars on the road and fewer disturbances caused by human activities.
  Variation trend of cross-section traffic volume during Spring Festival in 2019 and 2020.
  (Source: Planning Institute of Ministry of Transport)
  3. The change of particulate pollution characteristics during the Spring Festival this year just shows the impact of dust.
  During the Spring Festival and the epidemic, the sources of dust have decreased, so let’s take a look at the corresponding changes in the characteristics of particulate pollution. For "2+26" cities, the whole year of PM in 20192.5/PM10The average ratio was 0.57, and it reached 0.77 in January 2020, up 10% from 0.7 in the same period of 2019. It even rose to 0.84 during the Spring Festival and the epidemic period, up 38% from 0.61 in the same period of 2019, and even reached 0.9 in some cities during the Spring Festival and the epidemic period.
  We know, PM10With PM2.5It is an inclusion relationship, and the ratio of the two can reflect the source and characteristics of particulate pollution to a certain extent. In more than 300 cities in China, the ratio is between 0.3 and 0.8. Generally speaking, the ratio will be higher in cities with higher level of urban dust management, usually around 0.7, or even up to 0.8. The proportion of cities with low level of urban dust management or affected by sandstorm is relatively low, which can reach about 0.3. Theoretically, it affects PM.2.5/PM10The main factors of the ratio include source composition and meteorological factors. In addition to the influence of meteorological factors such as static weather and high humidity conditions, the particle size distribution law of different source sources is very different. Such as PM in dust emission2.5It only accounts for about 5-10%, and the particulate matter emitted by motor vehicles can be considered as PM.2.5Organized emissions from industrial enterprises are also dominated by fine particles. That is to say, the higher the proportion of fine particles in particulate matter, the lower the proportion of coarse particles, indicating the lower the contribution of dust sources. On the other hand, the source analysis results of some cities show that the contribution rate of dust to PM2.5 in January 2020 is only 5%, which is a quarter of the usual state. Therefore, the recent changes in the characteristics of particulate pollution in Beijing, Tianjin and Hebei show that the sharp reduction of social activities during the Spring Festival and the epidemic has reduced the contribution of dust sources to particulate matter, which has reduced PM.10The concentration has obvious effect, and it also has some influence on reducing the concentration of PM2.5.
  4. Suggestions on dust pollution control
  Compared with other sources of particulate matter, the technical threshold of dust source prevention and control is not high, the cost is low, the effect is quick, and there is still a large controllable space. However, in view of the characteristics of dust sources, it is still difficult to have a set of technical systems such as emission standards, monitoring norms, treatment and evaluation like other source management, so there are still many difficulties in practical work. In practice, there is a common phenomenon that one pipe is effective and it will rebound as soon as it is loosened.
  We believe that management is the core, implementation is the key, infrastructure is the cornerstone and system is the guarantee in dust prevention and control. The first thing is to carry out education and technical training on dust pollution prevention and control for sanitation workers, construction site workers, front-line workers and managers of dust-prone industrial enterprises, so that dust prevention and control will become a spontaneous and conscious behavior of front-line personnel; Second, it is necessary to strengthen the global prevention and control of dust pollution, focusing on the urban-rural fringe, taking the urban built-up area as the standard, implementing urban and rural bare ground greening, and hardening the dirt roads in the urban-rural fringe and rural areas; Third, we should strengthen the whole process control of dust generation, transportation, stacking and unloading, optimize and improve the relevant assessment mechanism, and establish a public supervision mechanism; Fourth, we should establish and improve the index system and normalization evaluation mechanism of dust prevention and control in engineering construction site; Fifth, we must rely on advanced technical means to realize online monitoring and control of dust pollution and realize all-round control of dust pollution.
  China’s air pollution has gone from pollution source management to total amount management to current quality management, and pollution control has gone from single-source management to multi-source management to current multi-source and multi-pollutant collaborative management, so pollution prevention and control has embarked on a comprehensive, refined and scientific road. The same is true for dust prevention and control. We should not only pay attention to those visible construction sites and mounds, but also unswervingly follow the route of comprehensive prevention and control of multiple pollutants, pay attention to all sources that can produce dust, and carry out in-depth and meticulous control on pollution sources such as industry, coal burning and motor vehicles, so as to finally achieve the goal of comprehensive air quality standards.

Do you miss the online class for a few years?

Original serious demographic gossip group serious demographic gossip

Author | Wang Han Ph.D. student in sociology, University of Saskatchewan, Canada

Editor | Zhao Menghan Associate Professor, Population and Development Research Center, Renmin University of China

After the outbreak of COVID-19, all aspects of our lives have been greatly impacted, and education is also an area that has been deeply influenced and changed. Due to the demand of prevention and control, face-to-face teaching was forced to stop. In order to solve the teaching problems of all kinds of students, especially those in the basic education stage, an upsurge of online teaching has been set off around the world since 2020.

Our country has also responded quickly in developing online teaching. As early as January 29, 2020, the Ministry of Education issued a notice: advocating the use of online platforms to achieve "suspension of classes without stopping teaching and learning", so as to gradually restore the order of education and teaching. Subsequently, major universities, primary and secondary schools responded to the call and began to implement online teaching. Although offline teaching was also carried out during the slow epidemic, it was not until this year that offline campus teaching was basically completely restored. It should be said that the implementation of online teaching not only protects the health of teachers and students, but also minimizes the impact of the epidemic on teaching activities.

Of course, the emergence and application of anything new has a complicated impact. There are many difficulties and challenges, but it also brings innovation and hope. With the small series, we will sort out and summarize the influence and enlightenment brought to us by the online courses in the next three years in stages.

Chapter 1

Past lives of online class

As a new teaching method, Internet teaching has two main ways: live teaching and recorded teaching. Live teaching is the real-time classroom teaching and interaction with the help of the network platform, such as the popular Zoom abroad, the Tencent conference commonly used in domestic universities, and all kinds of nails that are collectively scored low by primary school students. Live teaching is equivalent to "moving" the classroom to the network platform. Recording and broadcasting teaching means uploading course videos and related materials made in advance on the network platform for learners to view and learn by themselves. The pioneer of recording and broadcasting teaching is the famous Coursera, and there are similar platforms in China, such as Netease Open Class and China University MOOC.

In fact, before the epidemic, Internet teaching had a broad audience in China, mainly concentrated in college students and adult self-learners. Online courses are widely used in all kinds of postgraduate entrance examinations, overseas examinations and civil service examinations, which makes large-scale training and teaching possible. When Xiao Bian was preparing to go abroad for the exam n years ago, he participated in the GRE full-course and braille class of an institution. At that time, YY voice platform was adopted for online teaching.

Compared with adult learners, students in the basic education stage had less opportunities to contact online teaching before the "online class tide". For basic education, classroom education is not only a form of imparting knowledge, but also an important place for students to make friends and complete socialization. Therefore, compared with the online teaching of graduate students like Xiaobian, students and teachers in primary and secondary schools have encountered many problems in the process of accepting online teaching.

Chapter 2

Difficulties and challenges in online courses

The first challenge that online classes bring to teachers and students in primary and secondary schools is the technical problem. First of all, in terms of network and equipment, some students can’t get a stable network connection due to economic constraints, or they don’t have computers at home. Many students use mobile devices to attend online classes, which may damage their eyesight because of the small screen. In terms of acceptance, primary school students’ acceptance is greater than that of high school students, which may be related to the complexity of the teaching content.

Teachers also have similar network and equipment problems, but what teachers reflect more is their unfamiliarity with teaching software and lack of live broadcast experience. How to organize teaching and interaction in virtual environment is a big challenge for teachers, especially for older teachers, who need to spend more time getting familiar with and applying new technologies. The research points out that most primary and secondary school teachers have negative emotions such as "nervousness and anxiety" when they just turn to online teaching. After using it for a period of time, with the improvement of teachers’ mastery of new technologies, their self-confidence in online teaching has also improved significantly. Technology-related problems are obvious in the initial stage of online course application. With the increase of familiarity, most of the problems have been solved.

Compared with technical problems, the quality of online teaching is the focus of attention. In a nationwide survey of online classes in primary and secondary schools, most parents said that they didn’t recognize the effect of their children’s learning. The main reason was that parents thought that their children’s autonomous learning ability was poor, and they could not effectively supervise and restrain their children because the teachers were not present. Common problems such as absent-mindedness, inattention in listening, and inattention in completing homework. On social media, Xiao Bian also saw a post. A teacher opened the teaching software to check the homework, only to find that the homework photos uploaded by the students were net maps, and all the students uploaded the same photo. What’s even more outrageous is that in order to avoid the teacher’s discovery, some students added different filters to the photos, and when they saw the students’ "Sao operation", the teacher also said that he was speechless.

The classroom in colleges and universities needs more interaction and discussion between teachers and students, while in online courses, teachers and students lack opportunities for face-to-face communication. The form of online teaching is like a "enough paper" for communication and interaction. Although it is only a thin layer, it is difficult to attract students to break it in class. Without asking to turn on the camera, many students are confused, lying down and listening to classes while walking, and the learning effect is naturally not good.

In addition, due to the differences of students’ family environment and family relationship, online teaching will amplify the influence of family background on students. Children from wealthy families will have a better learning environment and a better learning effect than children from low-income families. Therefore, how to improve the teaching quality of online teaching for students in compulsory education stage is a subject worth studying in the future.

Chapter 3

Surprises and opportunities brought by online courses

The popularity of online teaching has promoted the development of internet teaching technology, innovated teaching methods and promoted the development of various online teaching platforms and software. As a nail, the school-based function is convenient for teachers to check and correct homework and improve teaching efficiency. In the process of developing online courses, teachers have innovated teaching methods and accumulated teaching experience supported by new technologies.

Although some students are even more reluctant to participate in interaction in online classes, due to the absence of the Internet, some students who are usually silent in the classroom can participate in classroom interaction more actively after switching to the Internet platform, which is also a pleasant surprise in online teaching.

In the process of online teaching, parents’ participation in their children’s education has increased significantly. Due to the absence of teachers, parents assume the role of supervision and management of their children, which gives many parents who are usually busy with their work and less involved in their children’s studies an opportunity to get to know their children better. In the process of supervising and tutoring children’s homework, the interaction between parents and children has also increased significantly, which is helpful to improve family relations (of course, when the academic performance is not good, it will also have the opposite effect).

The popularity of online courses has also greatly enriched Internet educational resources. In the past, some teaching resources that were difficult to retrieve on the Internet can now be easily found on various platforms, which will help reduce the cost of education and give everyone a more equal opportunity to obtain educational resources. Some things that you used to have to take remedial classes can now be found on the Internet. At the same time, the online teaching resources have realized "paperless" teaching and learning, which is conducive to saving resources and protecting the environment.

More importantly, the popularity of online courses is a new opportunity for friends who are interested in lifelong learning and improve themselves through self-study. For example, on Coursera, you can hear courses from top universities in the world, such as Harvard University and University of California, Berkeley, and most of them are provided free of charge. If your English is not very good, there are many Chinese Coursera courses for you to choose from in Netease open class. The bridge of the internet allows many people who have no chance to study abroad to dream of famous schools. The popularity of online courses is a great boon for lifelong learners.

To sum up, although online education has encountered some difficulties and challenges in the initial stage of application, it is very valuable in the long run. Online teaching not only promotes the innovation of teaching technology, but also greatly enriches educational resources; It greatly reduces the cost of receiving education, is conducive to the popularization and sinking of knowledge, and improves the overall quality of the people. Therefore, in the future, as educators, we should pay more attention to the value of online education and focus on solving the problems found in the teaching process, so that online education can benefit a wider group.

References:

Pokhrel, S., & Chhetri, R. (2021). A literature review on impact of COVID-19 pandemic on teaching and learning. Higher education for the future, 8(1), 133-141.

Zhang Huirong, Zhu Yuqiong, Nianchuang, & Xiong Zhangxiao. (2020). Online teaching in primary and secondary schools under major epidemic: opportunities, challenges and countermeasures. Curriculum. Teaching methods, 40(5), 58-63.

Tang Xueping,&Li Chen. (2021). Analysis of public awareness of online teaching in primary and secondary schools during the COVID-19 epidemic. Distance education in China.

Zhang Binglin, Fu Rui,&Li Dingding. (2020). Rational Thinking on Webcast Teaching in Post-epidemic Period. Curriculum. Textbook. Teaching Method, 40(6), 73-80.

Original title: "Do you miss the online class for three years? 》

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Consumption upgrades, where does the money go? Where can consumption tap the potential?

  CCTV News:This year’s "Government Work Report" pointed out that it is necessary to promote the steady growth of consumption, and take measures to increase the income of urban and rural residents and enhance their spending power.

  In 2018, the total retail sales of consumer goods in China exceeded 38 trillion, and consumption became the "main engine" of economic growth for five consecutive years; In 2019, we will promote the formation of a strong domestic market, continuously release the potential of domestic demand, make up for shortcomings in services, and adapt to new demands. Consumption upgrades, where does the money go? Where can consumption tap the potential?

  News link:

  According to the preliminary accounting data of the National Bureau of Statistics, China’s GDP in 2018 was 90.03 trillion yuan, an increase of 6.6% over the previous year. The contribution rate of final consumption expenditure to GDP growth in the whole year was 76.2%, an increase of 18.6 percentage points over the previous year.

  Where does the consumption upgrade money go?

  Yang Chengzhang: Information, health, culture and tourism are the new consumption trends.

  Yang Chengzhang, member of Chinese People’s Political Consultative Conference: The proportion of digital consumption and information consumption is increasing, and a large amount of consumption is obtained through digital information. Healthy consumption and cultural consumption are also a trend of high-quality consumption. For example, it can be seen from a family of four generations that each level has its own consumption hotspots and consumption patterns, especially the elderly and children, who were relatively disadvantaged groups in consumption, but now these two groups are precisely places with great potential. On the whole, China’s consumption potential is still very large. The problem is how to release the potential, become the current consumption hotspot, and drive consumer demand, which is very important for our current economic growth.

  Crown: Engel coefficient innovation is low, "good life" becomes mainstream

  Wang Guan, financial commentator of Yangguang: Engel coefficient refers to the percentage of money spent by a person or a family on food, which accounts for the income of the whole family. In 1978, China’s Engel coefficient was 58%, and about 60% of Chinese’s money was spent on food. Last year, our Engel coefficient dropped to 28.4%, which is a very great achievement. Today, Chinese spends less than 30% on food.

  So where did the money go? It is understood that in 2018, the box office of Chinese movies reached about 60 billion yuan, while domestic tourism reached 5.5 billion, and outbound travel was close to 150 million. In other words, people have turned to cultural consumption, from traditional dietary consumption to more consumption that meets people’s needs for a better life.

  Where does the potential of consumption go?

  News link:

  According to the Ministry of Commerce, there are three major measures to promote consumption this year: First, promote urban consumption and promote consumption upgrading, including upgrading a number of pedestrian streets and optimizing the layout of convenience stores; The second is to expand rural consumption and promote agricultural products to enter the city and industrial products to the countryside; The third is to develop service consumption, optimize service supply, and focus on filling shortcomings such as old-age care services and domestic services.

  Yang Chengzhang: The consumption concept should be innovated when changing the consumption pattern.

  Yang Chengzhang, member of Chinese People’s Political Consultative Conference: The consumption concepts of different income groups are in the process of collision between the old and the new. For example, older people may not understand the moonlight clan born in 1980s and 1990s, because the traditional culture of China advocates frugality and housekeeping, so they should save money to live, not borrow money. But saving money to live is a way, and borrowing money to live is also a way. Saving money is to use the value created now in the future, and borrowing money to live is to have confidence in the future, so everyone’s consumption concept is changing, and there is still a lot of room for improvement here.

  In addition, consumption patterns should be constantly innovated. For example, a house should not only be large, but also comfortable. In some developed countries, although the house area is not large, the decoration is particularly particular. Therefore, we should follow the house to explore consumption, follow the car to explore consumption, follow the mobile phone to explore consumption, follow the high-speed rail to explore consumption and fully tap the consumption potential.

  Crown: Driving High-quality Employment by Consumption Upgrading Dongfeng

  Wang Guan, commentator of Yangguang Finance and Economics: It is very important to promote consumption in order to stabilize growth. Steady growth is actually to stabilize employment, and employment is the biggest livelihood.

  With stable employment and increased income, we will have confidence. We should take advantage of the east wind of consumption upgrading to promote high-quality employment. For example: B&B renovation. In some rural areas of Shandong and Zhejiang, the rebuilt homestay is even more expensive than a five-star hotel, and it brings a series of production work, such as water and electricity heating, pipeline design and construction of the whole appearance, and so on.

  In addition, how to develop and use the network online and how to publicize it have brought more detailed work needs, so with the consumption upgrading, the whole employment will be upgraded.

  Yang Chengzhang: Consumption is the stabilizer of economic growth.

  Yang Chengzhang, member of Chinese People’s Political Consultative Conference: Consumption is the stabilizer of current economic growth, because the contribution rate of consumption reaches 78%. At present, GDP growth in the world is on the decline, and it is still difficult for our external demand to increase substantially. What does China rely on under such circumstances? It depends on consumption. When consumption stabilizes, the economy will naturally stabilize. This year, the government’s series of policies focus on two points: one is consumption, and the other is private enterprises. The consumption potential is the greatest, because the population of 1.4 billion is the largest market.

  Crown: Seize the strategic opportunity period of consumption upgrading to promote the high-quality development of China economy.

  Wang Guan, financial commentator of Yangguang: Seize the strategic opportunity period of consumption upgrading and promote the high-quality economic development of China. In the past 40 years of reform and opening up, we have enjoyed huge dividends, and the domestic demand is unprecedented. Not only China, but also the whole world is very optimistic about this strong consumer demand, so our supply-side structural reform should keep up with this rhythm.

  Today, consumers in China have changed from buying cheap and affordable products to buying quality and brands. Under such circumstances, how can China’s economy reach a new level? We bid farewell to the shortage economy in the past and entered the quality economy today. To realize the high-quality development of China’s economy, we need a series of supporting measures. This issue deserves our long-term consideration.

A case of asymptomatic infection was found in Rizhao, Shandong Province, which was a tourist from other provinces.

Cctv newsAccording to "Healthy Sunshine" WeChat WeChat official account, on August 15th, the office of the Leading Group (Headquarters) of the Party Working Committee of Shanhaitian Tourism Resort issued a notice saying that at 2 am on August 15th, Shanhaitian Tourism Resort was positive for the initial screening of nucleic acid test of a provincial tourist who was investigated by the provincial CDC, and the municipal CDC was positive for the reexamination. The positive patient has been transferred to the designated hospital by negative pressure ambulance and diagnosed as asymptomatic infection by the expert group.

According to epidemiological investigation, asymptomatic infected people arrived at Rizhao Airport at about 10: 00 on August 13th on flight PN6247 from Chongqing, and the landing nucleic acid test was negative. Check in at Lijiatai B&B Hotel at 11: 00. At 9: 00 a.m. on the 14th, I went to the sampling point in Lijiatai (wearing a mask all the time), and the nucleic acid test was negative. After receiving the information of provincial disease control investigation, isolation and control measures shall be taken immediately. The activity area is mainly near Lijiatai.

At present, 9 close contacts have been preliminarily investigated, and the results of nucleic acid test are all negative. There are 37 sub-close contacts, and isolation control measures have been taken. The flow tracing and isolation control work is in progress.

The chairman of Guangxi Yicheng Investment Company took bribes of 4.93 million yuan and donated 500,000 yuan to his hometown.

On August 20th, Feng Rong Zhen was sentenced to 12 years’ imprisonment by Fangchenggang Intermediate People’s Court for gambling. @ Guangxi News Network

Fangchenggang, Guangxi Zhuang Autonomous Region, with its back to the southwest and facing Southeast Asia, has experienced rapid economic development and rapid urban construction in recent years with its special geographical advantages along the coast. With the large-scale development of urban construction, corruption has also been quietly bred. Feng Rong Zhen, former chairman and general manager of Fangchenggang Urban Construction Investment Co., Ltd. (hereinafter referred to as Urban Investment Company), embarked on the road of corruption in the process of urban road construction. Feng Rong Zhen’s bribery case, which was investigated and prosecuted by Fangchenggang City Procuratorate, was recently pronounced by the court in the first instance. Feng Rong Zhen was sentenced to 12 years’ imprisonment for accepting bribes of 4.93 million yuan and confiscated 500,000 yuan of personal property.

The road has been transformed into a "road to collect money"

Beibu Gulf Avenue (formerly Xinggang Avenue) in Fangchenggang City is the main road of the city. It comes out of the toll station in Fangchenggang City and directly enters Beibu Gulf Avenue. In order to meet the needs of urban development, in 2010, Fangchenggang Municipal Government decided to completely transform the original Xinggang Avenue to improve the overall taste of the city.

Fangchenggang City Investment Company is a wholly state-owned enterprise invested and established by the municipal government. Its business scope mainly includes: construction investment and management of urban infrastructure projects, comprehensive development of real estate, wholesale and retail of building and decoration materials, nursery stock management and greening project undertaking, etc. It is also the owner of the above-mentioned Xinggang Avenue reconstruction project. Feng Rong Zhen, the chairman and general manager of the company, holds the important decision-making power in the construction, project payment, completion acceptance, project settlement and other aspects of the project, and is of course the object of public relations of many bosses of the project construction party.

In two blocks of road reconstruction project from Yuluoling to Daoshuiao on Xinggang Avenue, a construction engineering company is the contractor, and Ma is the manager of the contractor. Feng Rong Zhen and Ma know each other because of their business ties. In order to get Rong Zhen’s attention, Ma often sends some gifts to bring them closer together.

One night in May 2011, Ma called Feng Rong Zhen and said that he would send some tea, and agreed to meet him at Taoyuan Street in the port area. Rong Zhen drove to Taoyuan Street and stopped. When Ma saw that Rong Zhen’s car arrived, he came to Rong Zhen’s car with a schoolbag and said, "Mr. Feng, this is the tea I gave you." Say that finish and left. Holding this heavy schoolbag, Feng Rong Zhen knew it well. When he opened it, he found that there was RMB cash in 100 yuan denomination, and each bundle was bound with plastic tape, making a total of 1 million yuan in cash.

Why did Ma send 1 million yuan in cash? There is not much communication between them. Afterwards, Feng Rong Zhen said: Maybe because I am the chairman and general manager of the city investment company, I will send money to me in order to get my care in the construction, project payment, completion acceptance and project settlement of the project. However, Ma has never verbally asked me for any care and help, and I have never deliberately taken care of or made things difficult for Ma or the construction party in my work. In Feng Rong Zhen’s view, even accepting money, as long as it is not deliberately taken care of at work, is not a bribe.

As a matter of fact, Feng Rong Zhen took care of the construction party in the process of organizing two blocks of projects, and received a total of 1.47 million yuan from Ma, the person in charge of the construction party, for six times.

In addition, Feng Rong Zhen also took care of the construction party in other bid projects, and received 560,000 yuan and 200,000 yuan from two other construction party leaders, Yang and Liu, five times.

The reconstruction project of Xinggang Avenue has become a "way to collect money" for Rong Zhen. After the completion of the project, there are serious quality problems, especially the section from Yuluoling to Daoshui ‘ao. Not long after the renovation, the pavement is pitted and uneven, which seriously affects the travel of citizens and the overall image of the city. The masses are quite complaining about this.

Bonded Logistics Center in Fangchenggang City

Building a "road network" is good for "fishing" money

In the process of urban construction in Fangchenggang City, "road network engineering" is a word with high frequency. The owners of major road network engineering such as "three horizontal and two vertical" road network engineering in the administrative center area and the road network engineering in the municipal bonded logistics center are all Fangchenggang City Investment Company. As the head of the company, Feng Rong Zhen will naturally receive many "sugar-coated shells".

One afternoon before the Spring Festival in 2010, Liu, the owner of the road network project, called to meet Rong Zhen. After the meeting, Liu took out two bags of things from the car and put them in the trunk of Rong Zhen’s car. He said, "Mr. Feng, this is 2 million yuan in cash, of which 800,000 yuan was returned to you by a friend of yours, and the other 1.2 million yuan is my own gift." Liu left after he finished speaking.

Rong Zhen didn’t say much and didn’t check the money, so he took it back to Fangchenggang and lent it to his brother to run his personal business. Feng Rong Zhen knows very well that the money came entirely for his own rights. Liu is the manager of the construction party of Fangchenggang’s "three horizontals and two verticals" road network project and Fangchenggang Bonded Logistics Center road network project. Liu wants to be taken care of in terms of project construction, project payment, completion acceptance and project settlement before sending this 1.2 million yuan.

After verification, in addition to the above-mentioned road network project, Feng Rong Zhen took care of the construction party in the process of organizing the construction of a bid section of North-South Avenue, the earthwork project of Fangchenggang Vocational Education Center, the Bailu Park project, and the road reconstruction project of Yuluoling-Daoshuiao section of Xinggang Avenue, and received a total of 2.5 million yuan from Liu, the person in charge of the construction party, three times.

Feng Rong Zhen not only lavished money on big projects, but also spared some small projects. Feng Rong Zhen gave convenience to the project contractor in the process of purchasing and installing weak current system engineering equipment for Fangchenggang City Investment Company’s comprehensive building project, and accepted 100,000 yuan; In the process of building a bid section of Dongwan Avenue in Fangchenggang City, he gave convenience to the project contractor Yang and accepted 100,000 yuan in cash.

500,000 yuan of stolen money was donated to my hometown.

In 2014, the procuratorate of Fangchenggang launched a massive special campaign to crack down on duty crimes in state-owned enterprises. During this campaign, nine people, including Feng Rong Zhen, chairman and general manager of Fangchenggang City Investment Company, and Zhang Hengyu, deputy general manager, were investigated for criminal responsibility.

Feng Rong Zhen was born in an ordinary family in Gongcheng County, Guilin. He was determined to get ahead from an early age, and then he was admitted to the university through hard work and worked as a postgraduate. Because of his outstanding work performance, Feng Rong Zhen had a smooth career path. At the age of 31, he was appointed as the director of Fangchenggang Fangcheng District Construction Bureau. Before he was 40, he became the chairman and general manager of Fangchenggang Urban Construction Investment Co., Ltd., a member of the party group of the Municipal Development and Reform Commission, and the deputy director and deputy director of the municipal major project construction office. Because of the struggle as a child, Feng Rong Zhen has a deep affection for his hometown, and he never forgets what he can do for his hometown. In fact, Rong Zhen also took action, but in a shameful way.

In the process of investigating Feng Rong Zhen’s case, when tracing the whereabouts of the stolen money, a sum of stolen money attracted everyone’s attention: from 2010 to the end of 2013, Feng Rong Zhen invested about 500,000 yuan in building bridges, roads and Little Square in his hometown of Gongcheng County, and the money was paid by his brother Feng.

The 4.93 million yuan illegally accepted by Feng Rong Zhen was mainly used for buying houses, investing in mining partnerships and personal consumption, in addition to investing in public welfare undertakings. Feng Rongzhen spent 1.4 million yuan to buy a property in Nanning at the end of 2009; In 2012, in my hometown of Gongcheng County, I invested 500,000 yuan to mine in partnership with my relatives.

In the investigation stage, the case-handling organ recovered 489,000 yuan from Feng Rong Zhen’s bank account and stock account, and recovered 100,000 yuan from others, and his relatives withdrew 300,000 yuan from the court during the trial stage, and a total of 889,000 yuan was withdrawn before and after Feng Rong Zhen.

On February 2nd this year, Feng Rong Zhen’s suspected bribery case was heard in the Fangchenggang Intermediate People’s Court. Facing the accusation of the procuratorate, Feng Rong Zhen confessed his criminal facts. Because he voluntarily surrendered himself and truthfully confessed his criminal behavior, he pleaded guilty with a good attitude and withdrew part of the money, the court finally gave him a lighter punishment and made the above judgment according to law.

When the gavel fell, Feng Rong Zhen’s expression was dim, and his hard work and high spirits were all gone with a verdict.

The 4th Member Congress of Guangdong Guangdong, Hong Kong and Macao Cooperation Promotion Association was held. Li Xi, Ma Xingrui and Zhu Xiaodan met with representatives from all walks of life.

On December 14th, the 4th member congress of Guangdong Guangdong-Hong Kong-Macao Cooperation Promotion Association was held in Guangzhou. Before the meeting, Li Xi, secretary of the provincial party committee, Ma Xingrui, governor, and Zhu Xiaodan, director of the Overseas Chinese Committee of Chinese People’s Political Consultative Conference, met with representatives from all walks of life in Guangdong, Hong Kong and Macao.

On behalf of the provincial party committee and government, Li Xi expressed his gratitude to the representatives from all walks of life who have long cared for and supported the development of Guangdong and promoted the cooperation between Guangdong, Hong Kong and Macao. He pointed out that the construction of Guangdong-Hong Kong-Macao Greater Bay Area is a national strategy personally planned, deployed and promoted by the Supreme Leader General Secretary, which provides a great historical opportunity for the cooperation and development of the three places. From October 22nd to 25th, the General Secretary visited Guangdong and delivered an important speech. He personally attended the opening ceremony of the Hong Kong-Zhuhai-Macao Bridge and announced the official opening of the bridge, demanding that Guangdong shoulder the important responsibility of Guangdong-Hong Kong-Macao Greater Bay Area’s construction and make good use of the great opportunities and articles of Greater Bay Area’s construction. We will keep in mind the earnest entrustment of the General Secretary, make full use of the province’s efforts to promote the construction of Guangdong-Hong Kong-Macao Greater Bay Area, and push the reform and opening up to a higher starting point, a higher level and a higher goal. It is hoped that the Guangdong-Hong Kong-Macao Cooperation Promotion Association will thoroughly implement the principle of "one country, two systems", continue to play the role of an important platform for non-governmental exchanges and cooperation between Guangdong, Hong Kong and Macao, actively contribute wisdom and strength around the construction of Greater Bay Area, and make new and greater contributions to deepening the cooperation between Guangdong, Hong Kong and Macao, maintaining the prosperity and stability of Hong Kong and Macao, and promoting their better integration into the overall situation of national development.

Vice Governor Ouyang Weimin delivered a speech at the meeting. He said that Guangdong has conscientiously studied and implemented the spirit of the important speech made by General Secretary Supreme Leader during his visit to Guangdong, and made solid efforts in accelerating the construction of an international science and technology innovation center, improving supporting construction and policy arrangements for major projects, steadily promoting cooperation in the field of people’s livelihood, and strengthening cooperation in ecological environment protection and governance, so as to promote the implementation of Greater Bay Area’s construction. I hope that the Guangdong-Hong Kong-Macao Cooperation Promotion Association will focus on Guangdong-Hong Kong-Macao Greater Bay Area’s development, make suggestions and suggestions, and promote all walks of life in Guangdong, Hong Kong and Macao to jointly build Greater Bay Area and write a new chapter in cooperation and development.

The meeting elected a new leading body of the Guangdong-Hong Kong-Macao Cooperation Promotion Association. Provincial leader Lin Xiong, Chief Secretary for Administration Zhang Jianzong of the Hong Kong Special Administrative Region Government and Financial Secretary Liang Weite of the Macao Special Administrative Region Government attended the meeting.

Ten tips on the Spring Festival: Why is the Spring Festival also called Xinzheng and Yuanri?

  BEIJING, Beijing, January 22 (Reporter Shangguan Yun) "The sound of firecrackers is one year old, and the spring breeze warms Tu Su." Another Spring Festival is coming, and people greet the long-awaited Lunar New Year with rich and varied festival customs.

  Meng Lingfa, an associate professor at chongqing technology and business university College of Law and Sociology, mentioned in an exclusive interview with Zhongxin.com that the Spring Festival reflects the exchange between the old and the new in natural time and space, and has a beautiful meaning of getting rid of the old, praying for the good fortune, giving thanks first and reuniting the family.

  In fact, no matter how the customs change, the Spring Festival is always a reunion festival valued by Chinese, and it also reflects the profoundness and long history of Chinese excellent traditional culture from all aspects.

  1. What is the meaning of the Spring Festival?

  Spring Festival is one of the most important traditional festivals in China. As the saying goes, "one hundred years is the first" and "four seasons spring is the first", which reflects the exchange of old and new natural time and space.

  Therefore, as a title of "Year", the Spring Festival has a beautiful meaning of getting rid of the old and spreading the new, praying for happiness, giving thanks and family reunion in various sacrificial ceremonies and celebrations.

  In essence, "Chinese New Year" can also be regarded as a time period. In ancient times, there was no word "Spring Festival", but "the first day of the first month" was often called Yuanshuo, Yuanri, SGD, New Year’s Day, Zhengri, Yuanchen or Xinzheng.

  Meng Lingfa said that until the Republic of China, "the first day of the first month" was named "Spring Festival" and it has been used ever since.

  Second, why is the Spring Festival called Xinzheng?

  Among the various names of the Spring Festival, "Xinzheng" has been widely used since the Sui and Tang Dynasties. For example, Meng Haoran’s poem "The New Year’s Eve will be a happy house in Zhang Shaofu" says: "The old plum blossoms sing, and the new Zhengbai wine bottle."

  In Yuan Xi, an old story of Wulin, Zhou Mi of the Song Dynasty wrote: "As soon as you enter the new school, the lights are getting brighter." In the Ming and Qing Dynasties, the name "Xinzheng" was also continued. In "Cold Swallow in Pingshan", a mountain man wrote: "Because I spent the New Year at home at the end of the year, Xinzheng got up and took office."

  The title of "Zhengri" may have appeared in the Han Dynasty. In the Book of Beginners of Tang Xujian, four quotations from the Four People’s Moon Order of Han Dynasty said: "The first day of the first month is called Zhengri." Whether it’s a new day or a new day, these titles all reflect the ancient people’s understanding of the first day of the New Year.

  In essence, these words have certain beautiful meanings. No matter which word is used to refer to "the first day of the first month", the concepts such as "new", "positive" and "yuan" embodied in it all show people’s time positioning for the beginning of a year and their recognition of Vientiane’s renewal.

  Third, how to set the festival with the beginning of the year?

  The Spring Festival can become a traditional festival in China, and it has experienced a long development process, which is also related to the choice of calendar.

  According to Meng Lingfa, China has a very long history of observing images and giving time, but there are still differences from one dynasty to another, which has a direct impact on the tradition of observing festivals at the beginning of the year.

  In ancient times, people took the Big Dipper as the benchmark, and determined that "bucket handle Huiyin" was Chunzheng and "beginning of spring, who built Zhengyin Moon", was the beginning of the year. This is exactly the method of the era of the main branch, or the star calendar.

  Simply speaking, the first month of the summer calendar is in Meng Chun, the first month of the business calendar is in winter and December, and the first month of the week calendar is in winter and November. After Qin unified the six countries, the Qin calendar (Zhuan Xu calendar) was adopted, and the first month was set in October.

  In the early Han Dynasty, the Qin calendar was used. By the time of Emperor Wu of the Han Dynasty, astronomers Tang Dou, Luo Xiahong, Deng Ping, etc., while absorbing the solar terms, made the "taichu calendar" and restored the first day of the spring of the summer calendar as the beginning of the year. This laid the time foundation for today’s Spring Festival, and Luoxiahong, a native of Langzhong, Sichuan, became the "first person in the Spring Festival" recognized by contemporary scholars and was regarded as the "grandfather of the year".

  4. Why was "Nian" extended to the name of the year?

  Nowadays, when people mention the Spring Festival, they always say "Spring Festival". Meng Lingfa explained that "Nian" belongs to the word "He", and Xu Shen wrote "Nian" as "Bang" in Shuo Wen Jie Zi, which means "which is the valley".

  "Gu Liang Chuan Huan Gong Three Years" records that "all grains are ripe for years". Based on this, "year" has the meaning of "year achievement", that is, "one year’s harvest" Based on this original meaning, "year" gradually extended to the meaning of expressing time, and thus concepts such as "year festival", "age", "anniversary" and "age" appeared.

  The same is true of the "year" of "Chinese New Year". As the so-called "spring planting", "summer hoeing", "autumn harvest" and "winter storage" go round and round, it is not difficult to understand that people regard "Chinese New Year" as a festival to celebrate the harvest.

  In addition, "food is the most important thing for the people" and "community" and "millet" are extremely important to people, and in such an important period of the Spring Festival, posting Spring Festival couplets with the meaning of "bumper harvest", holding performances of "social fire" and "social drama", and praying for "good weather" and "bumper harvest" have become very important belief activities.

  5. What is the relationship between New Year’s Eve and Spring Festival?

  From the time point of view, New Year’s Eve is connected with the Spring Festival, but it has its origin, that is, "expelling diseases and ghosts". Han stone reliefs have "Nuo Opera Map", and Song Yi’s painting "Da Nuo Map" is proof.

  Meng Lingfa explained that the original meaning of "except" is "transaction" and "evening" means "night", and this day is generally on the 30 th of the twelfth lunar month, commonly known as "the 30 th of the year" It is night people who "stay up all night", which is commonly called "keeping the old age".

  Therefore, from its original meaning, it can mean "abandoning the old and welcoming the new" and "exorcising evil spirits and avoiding filth" on the last night of the year. Therefore, there are similarities and differences between Spring Festival and New Year’s Eve, and the former can also include the latter to some extent — — Folk custom says that "it is the year after Laba", and "Year" is called "Spring Festival" in modern and contemporary society.

  In addition, according to different kinship, people go to relatives’ homes to pay New Year greetings at different times from the first day of junior high school. For example, in some places, they "return to their parents’ homes" on the second day of junior high school and "aunts and uncles" on the third day.

  6. When does New Year’s Eve appear at the earliest?

  People in China often refer to New Year’s Eve as "New Year’s Eve", which is called "New Year’s Eve" if it is a day or a night. In some areas, the day before New Year’s Eve is also called "New Year’s Eve".

  From the perspective of classics, the appearance of "New Year’s Eve" may be much later than the Spring Festival. The earliest reference to "New Year’s Eve" in the existing literature is the "Records of Local Customs" written by the Western Jin and Zhou Dynasties. "On New Year’s Eve, if you don’t sleep, it is called keeping the year."

  Most of New Year’s Eve falls on the 30th of the twelfth lunar month, but it also falls on the 29th of the twelfth lunar month. Meng Lingfa said that the traditional calendar in China is generally a combination of yin and yang, which considers both the sun and the moon, and the Big Dipper and the Twenty-eight Nights. However, in order to bridge the time difference between the sun, the moon and the stars, a flat year and a leap year were established.

  Therefore, there are 30 days and 29 days in the last month of the lunar year, but there are more than 30 days.

  Seven, why do you want to keep the age?

  "Shounian" is also called "Shounian Fire", according to the age, etc. Simply put, after dinner, the whole family entered the first day of the first month from "New Year’s Eve" until dawn.

  Meng Lingfa believes that one of the reasons for this custom may be that "Shounian" originated from ancient nature worship and people’s reasonable explanation of it. People take the behavior of "staying up late" to resolve the survival crisis brought by the imaginary "Nian beast".

  In other words, people hope to build an invisible force in the span of two periods to drive away all evil diseases and epidemics, so as to realize the effective protection of family or collective members.

  In a word, the custom of "keeping the old age" on New Year’s Eve mainly comes from a symbolic expression of people’s alternation between the old and the new, which embodies people’s perceptual cognition and treatment of the cyclical changes in natural time series, and gradually moves towards national entertainment.

  8. What are the main customs of the Spring Festival?

  During the Spring Festival, there are various festival customs, such as eating jiaozi, setting off fireworks, paying lucky money and visiting temple fairs.

  After eating the New Year’s Eve dinner, I also took back the Kitchen God. When the first day of the first month, everyone went to visit relatives and friends as usual, and "Happy New Year" in turn. People put on their favorite new clothes, prepare refreshments and sweets, and entertain guests warmly.

  In the old folk customs, from the first day to the seventh day, everything is exquisite every day, which is quite ceremonial.

  Nine, why do you want to eat "five spicy dishes"?

  Interestingly, some places eat "five spicy dishes" during the Spring Festival, which are cold dishes composed of five kinds of plants: raw leeks, raw onions, Polygonum cuspidatum, Polygonum cuspidatum and Artemisia scoparia, and some also use onions, garlic sprouts, ginger, peppers and mustard.

  In the Southern Dynasties, Liang Zonggu’s Chronicle of the Age of Jingchu recorded: "Spring cakes, radishes and spiced spring plates are eaten in the New Year". It can be seen that the "five-spice plate" was widely distributed in Chu.

  The "five-spice plate" is basically based on spicy dishes, and its homonym is "new", which means the beginning of a new year. In addition, eating "five spicy dishes" has the meaning of eliminating evil and diseases, and praying for "good health in the new year".

  Ten, saying goodbye to the old and welcoming the new is the core topic of the Spring Festival?

  "Thousands of families always change new peaches for old ones every day." Meng Lingfa said that "saying goodbye to the old and welcoming the new" is indeed the core topic of the Spring Festival. It can be said that most Spring Festival activities are inseparable from this.

  Sticking Spring Festival couplets, door gods, etc. generally appear on New Year’s Eve (noon); The bowing in New Year’s greetings on the first day of the first month, the auspicious words when greeting each other, etc., can all show that both of them have the characteristics of "resigning the old and welcoming the new".

  Meng Lingfa believes that, comparatively speaking, the "farewell to the old" attribute of New Year’s Eve is prominent, and the custom of the first day of the first month is more inclined to "welcome the new".

  In his view, celebrating the Spring Festival is an important activity that China has inherited for thousands of years. We should pay attention to the role of traditional culture in the development of contemporary society, do a good job in the process of protection and inheritance, and better maintain the cultural identity function of traditional festivals. (End)

South Korea’s president responded to his wife’s acceptance of brand-name bags: she was not "ruthless"

South Korea’s "first lady" Jin Jianxi continued to attract attention after privately accepting the video exposure of brand-name bags. According to Yonhap News Agency, South Korean President Yin Xiyue responded for the first time to the accusation that his wife, Kim Jianxi, accepted a brand-name bag in an interview broadcast on the evening of the 7th local time, saying that she was not "heartless" enough to refuse the other party’s gift.

According to the report, Yin Xiyue said in an interview with KBS TV in South Korea that this video of Jin Jianxi’s "receiving the package" shot through a hidden camera in 2022 was exposed before the Korean election last year, which was a "political means".

"The problem is that she can’t refuse mercilessly. If you can call this a problem, this is a bit regrettable. " Yin Xiyue added, "It is not important to say that this is a political strategy, but that we should draw a clearer line to ensure that such things will not happen again."

The report said that Yin Xiyue has been under increasing pressure since the video of "First Lady Receiving Bags" was exposed. When asked whether he planned to appoint a special investigator to investigate the corruption of the president’s family members, or set up the office of the private secretary of the first lady, Yin Xiyue said that the special investigator should be elected by the National Assembly, and his office was considering setting up the office of the first lady’s affairs, but he also had reservations about the effectiveness of these measures in preventing such incidents. In addition, when asked if he and Jin Jianxi would have a dispute over accepting brand-name bags, Yin Xiyue replied with a smile: "Not at all."

According to previous reports from Korean media, on September 13th, 2022, Jin Jianxi accepted a Dior bag worth about 3 million won (about RMB16,000) from Cui Zaiying, a pastor of overseas Chinese living in the United States. The related video was shot by the built-in camera of Cui Zaiying’s watch, which caused a huge storm after being exposed. Han Dongxun, chairman (temporary leader) of the Emergency Countermeasures Committee of the ruling National Power Party of South Korea, has repeatedly stated that he should deal with this matter from the "national line of sight" and adhere to the position of "or cause national concern and should be treated from the national point of view", but the president’s office believes that the relevant dispute is purely a "sneak shot trap" and Jin Jianxi is only a victim.

It is reported that South Korea’s first lady, Jin Jianxi, was born in 1972 and married Yin Xiyue in 2012. After marriage, they had no children. In 2022, Yin Xiyue was elected as the president of South Korea, and Jin Jianxi was also called the "most beautiful first lady" in South Korea.

However, Jin Jianxi was later exposed to many scandals, including plagiarism of papers and falsification of resumes. Among them, the most controversial issue is that Jin Jianxi is involved in stock manipulation, tax evasion and relatives breaking the law.

According to previous reports, Jin Jianxi was accused of being involved in manipulating the share price of Deutsch Motors, a BMW dealer in South Korea, from 2009 to 2012. During Moon Jae in’s administration, the South Korean government conducted a 19-month investigation on the case, but Jin Jianxi was not prosecuted. On January 4th, the South Korean National Assembly submitted two special investigation bills to the South Korean Presidential Palace, one of which called "the independent inspection law of Kim Jianxi". On January 5, Yin Xiyue exercised the right of reconsideration (veto) and returned the relevant bill to the National Assembly for reconsideration.

In 2019, a report pointed out that the property under Jin Jianxi’s name had been detained by the relevant departments for "unpaid taxes". According to the report of East Asia Daily, according to the information of personnel hearing submitted by Yin Xiyue to the National Assembly, the Tax Section 1 of Seocho District Office of Seoul seized the commercial and residential apartment in Seocho District of Seoul under the name of Jin Jianxi in November 2012, November 2013 and January 2015. According to Yonhap News Agency’s previous report quoted by Zhongxin.com, on July 21st, 2023, Cui Enshun, the mother-in-law of South Korean President Yin Xiyue, was sentenced in the second instance. The court rejected the appeal filed by the defendant, sentenced Cui Enshun to one year’s imprisonment, upheld the judgment of the first instance and arrested her in court. It is reported that the mother-in-law of the current president was arrested in court, which is the first time in the history of Korean constitutionalism.

In addition, Jin Jianxi is also considered to have academic misconduct. Plagiarism in doctoral dissertations and other academic works has been criticized by the public. After an eight-month investigation, the National Power Party said that although Jin Jianxi’s works have "shortcomings" and "do not meet the current standards", they do not constitute academic misconduct. 

(Yangcheng Evening News Yangcheng School Comprehensive Global Network, The Paper, vision china)