年度归档 2024年3月17日

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"Geek All-Star Game" TCTF2019 goes to war: Top Geek Team Competition

  Beijing, June 8 th, "Geek All-Star Game" — — The offline final of the 3rd Tencent Capture The Flag (TCTF) started at 10:00 am on June 8th, Beijing time, at Shanghai West Coast Art Center. Twelve top international teams from eight countries and regions around the world gathered here to launch a 30-hour uninterrupted competition for the last place in the DEF CON CTF 2019 global finals of the "Hacker World Cup".

  CTF is a popular form of information security competition. DEF CON CTF, the birthplace of CTF, is the CTF competition with the highest technical level and influence in the world, which is equivalent to the "Hacker World Cup". As the earliest and only wild card tournament authorized by DEF CON CTF in Chinese mainland for three consecutive years, TCTF has become one of the most professional and largest CTF events in China, with the "Starlight Glimmer" on the field, which brings together the world’s top geek teams and is called "Geek All-Star Game". The quality of the competition questions has also improved year by year. This year, a new competition question that is close to the forefront of the industrial Internet has been added. In the past three years, TCTF has accumulated more than 10,000 contestants, which has helped China’s new security forces to grow rapidly.

  The number of participating teams has increased by over 30%, and the world’s top geeks have gathered in the "All-Star" lineup.

  TCTF, as a professional CTF challenge initiated by Tencent Security, sponsored by Tencent Security College and Tencent Security Joint Laboratory, undertaken by Tencent Security Cohen Laboratory and co-organized by 0ops security team, has received positive responses from many top international teams and domestic universities. TCTF is divided into international competition for the whole world (0CTF) and RisingStar CTF for domestic universities. This year, 1,248 teams participated, and the number of participating teams increased by 30.4% year-on-year.

  Teams shortlisted for this TCTF International Competition come from eight countries and regions, including China, Japan, South Korea, the European Union, Russia, Germany and Poland. Star teams gather and live in Starlight Glimmer. The Polish team Dragon Sector, which won the first and second TCTF International Competition in CTF TIME2018, the Balsn team in Taipei, China and the LC BC team in Russia, which ranked second in the world, and the traditional Korean team CyKor, etc., have covered recent years.

  The competition in the final of Nova Invitational Tournament is equally fierce. There are three nova teams at home in Shanghai: Ph0t1n1a team of Shanghai Jiaotong University, and sixstars team and Whitzard team of Fudan University. There are also 12 famous teams, including Emmmm and Nu1L, the well-known joint teams of universities in China, and L team of xidian university, who have participated in the international professional CTF competition as challengers.

  Add Yunan Quancheng and other frontier competition questions to train industrial Internet security talents in actual combat.

  High-quality competition questions are a highlight of TCTF this year. The high quality of TCTF events has always been highly respected by the industry, and the 2018 international competition was also rated as the only CTF event in Chinese mainland by CTF TIME. This year, TCTF continued the international standard problem-solving competition system. Tencent Security Joint Laboratory and 0ops team of Shanghai Jiaotong University jointly issued the competition questions, deeply integrating the long-term offensive and defensive experience of both research teams, and trying to meet the actual requirements to the greatest extent. At the same time, this year, more innovative has integrated into the frontier hot fields such as AI, cloud computing, Internet of Things, etc., closely following the actual field and security demands of the industrial Internet, so that participants can challenge and experience the real-world network security attack and defense technology in the process of solving problems.

  In order to let the audience better participate in this international top-level event, a visual big screen was used in the final scene to broadcast the wonderful offensive and defensive trends in real time, and the whole process was explained by the security researcher of Tencent Security Cohen Laboratory with rich practical experience. The contest also specially customized the "geek suit" to hide an interesting CTF test question. The audience and netizens who watched the live broadcast through Tencent University can participate in solving the "mystery" and win rewards such as cash and TCTF commemorative gifts.

  It is worth mentioning that this year’s TCTF Offline Finals is dedicated to creating a geek culture with China characteristics. It will change the traditional award ceremony, and directly transform the arena into a Party site after the competition, so that the award ceremony will change "every second" and feel the geek culture with China characteristics.

  Help the growth of young geeks in China and forge a "double-class" network security talent training platform

  Different from the traditional CTF competition focusing on information security technology confrontation, TCTF also deeply undertakes the function of discovering and cultivating network security talents. After the precipitation of three TCTF events, Tencent Security strives to build a "double-first-class" network security talent training platform: by holding "first-class" CTF events to compete with the world’s top teams; Create a "first-class" talent training platform to accelerate the growth of the younger generation of cyber security talents in China.

  At present, Tencent Security has formed a full-chain talent training model: relying on the TCTF competition platform, combining Tencent Security College and the Joint Security Laboratory to build safety talents, building a cooperation and exchange platform in Industry-University-Research, and forming an ecological chain of discovery-training-transformation. We will select potential students through TCTF platform, and then provide professional training opportunities and employment resources through the "words and deeds" of Tencent Security Joint Laboratory. At the same time, we will also have the opportunity to participate in top information security competitions at home and abroad, forming a complete talent training closed loop from theoretical education in colleges and universities to enterprise skills training to international competitions.

  Tencent security "double first-class" network security talent training platform construction has also achieved phased results. At present, Tencent Security has established joint laboratories and research institutes with Guangzhou University, Beihang University, xidian university, Wuhan College and other universities to cultivate applied talents with strong practical ability and further enhance the research and development capabilities of universities and enterprises in the frontier information security technology field. In terms of events, the Tencent eee team, with Tencent Security Cohen Lab as the main force, successively won the online and offline champion of the Strong Net Cup, the champion of the first "Net Ding Cup" network security competition, the overall champion of the "Guard Net Cup" and the first place in the single prize in 2018. Tencent Security Team, which was jointly established by several departments, won both the "attack" and "defense" titles in the "2018 Guiyang Big Data and Cyber Security Attack and Defense Exercise", which is the most rigorous cloud security practical exercise in China, and defended Tencent security in the field of cloud services. Leading position; Shanghai Jiaotong University 0ops, Fudan sixstars and Zhejiang University AAA teams hatched by TCTF platform have also repeatedly entered the forefront in the three major competitions.

  During the current TCTF, the third China University Information Security Talent Training Salon will also be held simultaneously, bringing together information security teachers from major universities across the country to offer suggestions and suggestions on network security talent training. In addition, TCTF2019 linked with TenSec Tencent Security International Technology Summit for the first time, opening up the connection between technical practicality and professionalism, creating opportunities for young geeks in China to communicate with the world’s top security cafes, and further improving the closed-loop mode of personnel training.

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Premier League

At 23: 30 pm Beijing time on October 29th, the 10th round of the 2023-24 Premier League ushered in the first Manchester City Derby of this season, and Manchester United played against Manchester City at Old Trafford Stadium. In the first half, Hoyle pulled Rodley down and sent a penalty, and Harland took the penalty and hit it; In the second half, Harland scored twice with another goal, and before the end, he assisted Foton to seal the victory. Onana made many dives in the audience. In the end, Manchester City beat Manchester United 3-0 away.

This game is the 191st Manchester City Derby in history. Before the game, a series of activities were held at Old Trafford Stadium to commemorate the legendary Sir Bobby Charlton.

In the second minute, Manchester United stole the ball in midfield, and McTominay took the ball to the front of the penalty area and shot it with his left foot. The ball was not strong enough for Edersen. In the 8th minute, Rodley in the frontcourt hoisted the ball into the right side of the penalty area, Walker put it in front of the baseline and knocked the ball across the middle. Foden’s header was saved by Onana.

In the 12th minute, Grali took the ball to the left side of the penalty area, but he passed it back to his opponent in an inverted triangle. Hoyle took the ball and pushed it forward. Unfortunately, his teammates responded too slowly, and the fast break turned into a sports war. In the 15th minute, Foton sent a straight plug from the midfield, and Onana rushed out of the penalty area to clear the ball before Harland did.

In the 20th minute, Manchester City kicked the left tactical corner, Grali grabbed the ball from the right side of the restricted area and shot the far corner, and Onana saved the ball.In the 26th minute, Manchester City won a free kick in the frontcourt, and the ball was hoisted into the penalty area. Rodley, who was fighting for the landing point, was pulled down by Hoyle, and the referee awarded a penalty after watching VAR.

The penalty was taken by Harland, who shot his left foot low in the lower right corner of the goal and tricked Onana into scoring the ball. Manchester City led Manchester United 1-0.

In the 31st minute, Manchester City made a mistake in the frontcourt return, and Hoyle got the ball and got a half-single-handed chance. After he passed the goalkeeper, he didn’t have an angle to shoot, and then he crossed the middle. Unfortunately, B shot high from a small angle.

In the 36th minute, Manchester City made a cross from the right in the frontcourt. Maguire’s header in the penalty area was on Dallot, and he was almost attacked by Grali. In the 37th minute, Manchester City got a free kick from the left outside the penalty area, and Alvarez shot directly, and Onana saved the ball.

In the 45th minute, Manchester United made a long pass from the right side of the midfield. At the top of the arc, McTominay stopped the ball and turned to volley. Edersen saved the ball with one hand. In the 45th+4th minute, Seat B made a forward pass on the left baseline of the restricted area, and Harland headed Taishan in the small restricted area, and Onana flew to dedicate himself. At the end of the first half, Manchester City temporarily took the lead.

In the second half, Yi Bian fought again. In the 48th minute, B Fei received a tactical corner kick in front of the penalty area and made a long shot. Edersen saved the ball. In the 56th minute, Grali took the ball to the far corner from the left side of the restricted area, and Onana saved the ball sideways.In the 50th minute, the B-seat caught the ball and came to the bottom line on the left side of the penalty area. Harland in the middle headed the goal. This time, Onana had no choice. Manchester City led Manchester United 2-0.

In the 58th minute, Alvarez directly blocked the left side of the restricted area at the top of the arc, and Grali made a small-angle volley, and the ball missed the far post. In the 66th minute, Seat B shot with his left foot in front of the penalty area, and Onana hugged the ball. In the 69th minute, Rachford moved forward into the restricted area, and after receiving a long pass from the midfield, he shot low from a far corner at a small angle, and the ball missed slightly.

In the 71st minute, Grali sent a straight plug in the frontcourt, and Harland caught the ball to form a single knife. His volley on the left side of the restricted area was blocked by the attacking Onana. A minute later, Lindelov and Onana’s continuous mistakes almost gave Manchester City a goal.

In the 80th minute, Rodley took the ball and made a long-range shot in front of the restricted area. Onana saved the ball sideways, Harland got the ball on the left side of the restricted area and then passed it horizontally. Foden in the middle of the road easily shoveled the empty net and Manchester City led Manchester United 3-0.

In the 82nd minute, Manchester City made a cross from the left side of the penalty area. Before the penalty spot, Foden turned his back and hit the door, and the ball only missed a little.

In the end, the whole game ended and Manchester City beat Manchester United 3-0.

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The 2023 FISU Football World Cup ended and Beijing Normal University won the women’s team championship.

People’s Daily Online, Beijing, November 1 (Reporter Yang Lei) On October 31, the 2023 FISU Football World Cup ended in Jinjiang, Fujian. Beijing Normal University beat paulista University of Brazil in the women’s final and won the championship, while paulista University men’s soccer team won the men’s championship.

On the afternoon of October 31st, the battle for the women’s championship of the 2023 FIFA World Cup in Jinjiang was held at the training ground of Jinjiang Football Center. The team of Beijing Normal University, which represented China, played against the team of paulista University in Brazil, and the two sides fought for 120 minutes and drew 2:2. In the final penalty shootout, Beijing Normal University won the championship with a total score of 7:6.

"Today, we made full preparations for playing for 120 minutes and presented a very wonderful game to everyone. It is our honor to stand on the highest podium again after 12 years. " Bi Yan, former China international and head coach of Beijing Normal University, said after the game.

At the 2011 Shenzhen Universiade, Bi Yan helped the Beijing Normal University women’s football team win the championship by beating the Japanese team 2-1. Twelve years later, as the head coach, she led the team to the highest podium in the world college football again.

In the men’s final, paulista University of Brazil beat the Ukrainian National University of Economics and Business men’s soccer team 7-6 in a penalty shootout and won the championship. Hohai University’s men’s soccer team, representing China, created the best result of China University’s men’s soccer team in the FIBA World Cup, and finally won the eighth place.

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Ankle swelling is not as simple as drinking too much water.

  Swelling is called edema in medical terminology, which is more common in the ankle. Many people think that ankle swelling is caused by drinking too much water, but it is not. The website of American Journal of Prevention recently analyzed this and summarized 12 reasons for ankle swelling. Swelling If left untreated, swollen ankles will become painful, it will be difficult to walk, the joints will be stiff and the skin will be elongated. Even worse, swelling or blood clots, infections, and even signs of heart problems.

  Sit or stand all day: If your work requires standing (or sitting) in one place for a long time, then ankle swelling is a natural phenomenon. Dr Steven winfield, director of the Department of Foot and Ankle Surgery at Mount Sinai Hospital in new york, explained: When you move around, the muscles involved in exercise help you to import body fluids and blood into and out of your limbs. However, without the help of muscles in motion, blood and body fluids will gather in the feet and ankles.

  Side effects of pregnancy: among the many changes experienced by pregnant women during pregnancy, ankle swelling may be the most common. According to the American Pregnancy Association, this is mainly because the extra blood and body fluids produced by women during pregnancy soften the body and help it expand as the baby grows. Changes in hormone function and extra pressure in veins may also cause ankle swelling during pregnancy.

  Injury: Whether you hit a table or sprained your ankle while running, injury is a common cause of ankle swelling. When the ankle is injured, the body will send extra blood to this area; This will not only bring healing cells, but also cause swelling, thus keeping the injured joint still. In the case of injury, swelling may also be accompanied by redness or bruising.

  Infection is brewing: although untreated wounds around the ankle joint will infect the inside of the joint, any bacteria that enter the blood may eventually enter the joint. The most obvious signs of infection are swelling, tenderness, fever and redness.

  Infants and the elderly are particularly prone to suppurative arthritis, that is, bacterial or fungal infection leads to joint inflammation, accompanied by redness, pain and fever. In addition, some skin diseases (such as cellulitis, a rapidly spreading bacterial infection, which makes the skin appear red and blistered) can also cause swelling of the ankle, because it often appears in the lower leg of adults.

  Lymphedema: Lymphatic system transports lymph (including white blood cells and waste) to the whole body. However, for patients with lymphedema, their lymphatic system is damaged or blocked, resulting in lymph deposition at the distal end of the limb. Although some cancers (and cancer treatments) can cause lymphedema, infection can also stimulate swelling. Symptoms of lymphedema also include heavy or tight arms or legs, inability to move normally, repeated infections, skin hardening or thickening, and difficulty sleeping.

  Weight gain: Overweight and obese people have swollen ankles for two reasons. First of all, the extra weight applied around the joint will cause fluid retention around the joint. In addition, excessive hormone storage in excess fat cells will also lead to changes in hormone function, resulting in fluid retention.

  Taking certain drugs: Due to the complex interaction between drugs (including over-the-counter drugs) and the body, they may cause ankle swelling. Some drugs can cause fluid retention. Some drugs for treating blood pressure, anti-inflammatory steroids and even non-steroidal anti-inflammatory drugs (such as ibuprofen) have such side effects. Estrogen and some antidepressants can also cause ankle swelling.

  Arthritis: Symptoms of arthritis include joint swelling, pain, stiffness and difficulty in moving. This disease is very common in the elderly and will affect all joints of the body, including the ankle. Inflammation associated with arthritis causes joint swelling.

  Signs of blood clots: One of the most shocking causes of swelling around the ankle is blood clots (which usually spread further up the leg). If the swelling on one side continues to spread upward, it needs to be checked in time. In some cases, blood clots can enter the lungs and lead to life-threatening pulmonary embolism. If you notice other signs of thrombosis (such as pain, shortness of breath, dizziness, redness or discoloration of the skin), you should see the emergency department immediately.

  Intravenous work is inefficient: venous dysfunction will affect blood circulation back to the heart, allowing blood to collect on the feet and ankles. With the passage of time, the stretching function of the one-way valve of vein becomes worse, which leads to liquid leakage. This happens when the valve is damaged or weakened due to aging or sedentary, which is more common in middle-aged and elderly women over 50 years old.

  It may also be a symptom of heart problems: patients with congestive heart failure (caused by coronary heart disease or hypertension) have at least one ventricle that cannot pump blood normally. If the heart can’t pump enough fluid, the fluid will flow back. This usually happens in the feet and ankles, causing swelling. In more serious cases, it can extend up to the legs. Other symptoms of heart failure include shortness of breath or irregular heartbeat, persistent cough and chest pain.

  There are liver or kidney problems: kidney and liver dysfunction will affect the content of body fluids, causing fluid retention and swelling of ankle joints. In the case of kidney damage or nephropathy, the kidney either leaves too much fluid and sodium, or there is not enough protein in the blood, which will lead to fluid accumulation in the lower limbs. When renal failure occurs, swelling and tenderness will affect the whole leg below the knee. Liver disease also involves a low level of protein in the blood, resulting in fluid leakage and swelling of the lower limbs.

  Compile/Guo Shaoshan

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Russia develops saucer-shaped aircraft with a load of 1500 tons (Figure)

  The military prospect of saucer-shaped aircraft is attractive


    Although the relevant Russian reports so far have not explained the reasons why the Russian military is interested, people are convinced that the aircraft will be used by the military in the future.


    As we all know, the early attempts to develop saucer-shaped aircraft began in the early days of aviation development. As early as 1911, American inventors made umbrella-shaped aircraft. In the 1940s, especially during World War II, the research and development of saucer-shaped aircraft was supported by the US military, and Germany was the one that made small achievements in this field at that time. In 1950s, Britain, Canada, the former Soviet Union and the United States used the technology obtained from German experts at the end of World War II to set off the research and development climax of military flying saucers. For decades, aviation powers such as Russia and the United States have never given up the research on "flying saucer", because compared with ordinary fixed-wing aircraft, saucer-shaped aircraft has many unique properties, such as: small aspect ratio and small wave resistance, suitable for high-speed flight; Suitable for using ground effect, easy to realize vertical take-off and landing; It can quickly point to the attack target without hovering maneuver, and this feature will undoubtedly change the basic concept of air combat tactics.


  How far is Russia from the real "flying saucer"


    Through years of unremitting research, Russia has made great progress in the field of saucer-shaped aircraft and is expected to create a real "flying saucer." As early as the 1980s, the famous Russian flying saucer designer Hugh King successfully launched the saucer-shaped aircraft scheme named "Ekipi". For more than 20 years, Russia has successively introduced various civil and military modifications of the "Ekipi" program, including civilian unmanned flying saucers, fire fighting flying saucers, passenger flying saucers that can carry 2,000 passengers, and military flying saucers that can be used for anti-submarine, patrol and force and weapon delivery, and completed the production and testing of various scale models and individual full-scale prototypes. In 1993, the Russian government decided to provide budget funds for the "Ekipi" project, and the Russian Ministry of Defense and other departments also supported the mass production of an "Ekipi" flying saucer with a take-off weight of 9 tons. However, due to insufficient funds, mass production has not been realized. The successful research and development of "Ekipi" series of flying saucers has aroused great interest in the United States. At the beginning of this century, the United States reached an agreement with saratov Aircraft Factory, the main contractor of "Ekipi" facing financial difficulties, to jointly promote the "Ekipi" flying saucer project, but the implementation situation is still unclear.


    As for this "flying saucer" newly launched by Russian experts, this giant aircraft should have a very broad military application prospect in the long run. If it is used for military transportation, the carrying capacity of 1,500 tons will make it a super strategic delivery platform. However, the scheme is still in the scale model test stage, and there is no doubt that there is still a long way to go compared with the mature and fully tested "Ekipi" UFO project.


    Core Tip: At present, Russian experts are developing a flying saucer-like aircraft, which is said to have attracted the attention of the Russian military. Compared with ordinary fixed-wing aircraft, dish-shaped aircraft has many unique properties, such as small aspect ratio and wave drag, which are suitable for high-speed flight; You don’t need to do hovering maneuvers, and you can quickly point to the target.



    Before and after the disintegration of the Soviet Union, the "Ekipi" disc flight verification machine produced by saratov factory.


Editor: Wei Yu

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Zhou Fengxiang: "The discipline of walking" guarantees more than 5,700 hours of safe flight.

Zhou Fengxiang is checking the plane.

Zhou Fengxiang is checking the plane.

CCTV News:After 30 years of dedication, he devoted himself to aviation maintenance as a lifelong pursuit, and took flight safety as the goal of struggle and always adhered to it. After 30 years of hard work, he left a solid and shining track with hard work day after day and sincere loyalty year after year. The comrades-in-arms said that the aircraft he maintained had the best performance, the cleanest skin and the most assured flight.

He is Zhou Fengxiang, an aerial mechanic of the Second Mechanical Team of the Maintenance Squadron of a certain regiment of the Air Force Aviation Corps. He has flown safely for more than 5,770 hours, and won the second class merit twice and the third class merit four times successively. In 2014, he was awarded the "Excellent Aviation Maintenance Personnel" and the "Silver Medal of Honor for Air Force Maintenance Personnel" by the Air Force. In 2016, he was awarded the Excellent Communist party member of the Air Force and was elected as the representative of the 19th National Congress of the Communist Party of China this year.

As the competent aerial mechanic of the plane, Zhou Fengxiang is famous for being willing to endure hardships and dare to be true. Every time he prepares for a flight, he is always the first to arrive and get on the plane to work; Every time he works overtime at the airport, he always rushes to the front, scrambling to do the heaviest and most tiring work; After each flight, he always stayed to work with the ground maintenance team and was the last to leave. In the process of flight implementation, he insisted on strictly observing flight discipline, and every sortie and every take-off and landing was strictly carried out in accordance with rules and regulations. Everyone called him "the discipline book of walking".

Zhou Fengxiang is conducting a post-flight inspection.

Zhou Fengxiang is conducting a post-flight inspection.

In Zhou Fengxiang’s view, airplanes need careful care just like their own children. Over the years, he has successively summarized the maintenance practices of "four noes", "four noes", "four haves", "four presses" and "four one", which was condensed by the Communist Youth League Party Committee to form the "Zhou Fengxiang Maintenance Inspection Law" and popularized in the maintenance front of the whole regiment. The pilots all said: "flying the plane maintained by Zhou Fengxiang just feels different. The aircraft windshield slide rail is particularly clean, without a little dust, and the lubrication is very good. "

Zhou Fengxiang often said: "New party member and old party member are both party member, and old party member can only be a good example if he does better." Over the years, he has always been with absolute loyalty to the party and great love for the maintenance work, sticking to his original heart in the details and writing greatness in the ordinary.

This year, Zhou Fengxiang was elected as the representative of the 19th National Congress of the Communist Party of China. Facing the new identity and new responsibilities, he said with emotion: "It is the cultivation of the organization that has made my achievements today. I must earnestly participate in the agendas of the 19 th National Congress of the Communist Party of China with a spirit of hard work and a struggle for the future, correctly exercise democratic rights, faithfully perform my duties, and live up to the trust of officers and men! " (Source: Air Administration Propaganda Bureau)

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"Bring the highest quality fruit to mainland compatriots" —— A visit to the annona fruit farmers in Taitung

  Xinhua News Agency, Taipei, August 26th (Reporter Wang Chenghao, Chen Jun) "As soon as the news came out, we immediately gained confidence and started to move." Cai Hongyi, a fruit grower in Taitung, couldn’t suppress the joy on his face. The good news in his mouth is that in June this year, the mainland resumed the import of annona in Taiwan Province.

  Previously, the mainland suspended the import of annona squarrosa from Taiwan Province for nearly two years due to the repeated detection of quarantine pests such as mealybug.

  This is a annona orchard photographed in Taitung County (photo taken on August 9). Xinhua News Agency reporter Wang Chengyu photo

  Annona is called Sakyamuni in Taiwan Province. Taitung County, on the west coast of the Pacific Ocean, is the largest producing area of annona in Taiwan Province with abundant sunshine and rain. As the main category, "pineapple Sakya" has a planting area of about 2,700 hectares and an annual export of about 15,000 tons, of which more than 90% were once sold to the mainland.

  Leaving Taitung County and heading for the depths of east rift valley, the Benanxi River rushes out of the beaches between the central mountain range and the coastal mountain range, and the annona fruit trees full of pits and valleys are green. The reporter followed Cai Hongyi to his orchard before the morning dew.

  "Pruning in July, pollination in August, and fruit thinning in a month or two … …” Cai Hongyi introduced and pollinated. He held the pollinator in his hand, pushed aside the petals, stuck the pollinator nozzle into the stamen, rotated the pollinator and pinched the powder spraying ball with his hand. After a few times, the pollen reached the stamen along the powder spraying tube. Cai Hongyi, who has 16 years of planting experience, is familiar with this set of movements.

  By December, the fruit flowers in front of us will grow into fruity and Q-elastic annona. "We now have a production and sales resume, and every fruit can be traced back." Cai Hongyi’s dark face was soaked with sweat.

  Cai Hongyi, a fruit grower, is pollinating annona (photo taken on August 9). Xinhua News Agency reporter Wang Chengyu photo

  Since September, 2022, in order to ensure the safety of annona exported to the mainland, Taitung cooperated with Taitung University to study the quality improvement plan, and organized fruit farmers, packaging factories and other operators to carry out training and rectification. "In 2020, we heard that the fruit was flawed." Rao Qingling, the county magistrate of Taitung County, said that the key to solving the problem is to remove harmful organisms.

  Li Junlin, a professor at Taitung University, visited a number of packaging factories and found that "secondary pollution" caused by nonstandard cleaning was the main cause of residual fruits of pests.

  “‘ Pineapple Sakyamuni ’ If it is washed with water, it is inconvenient to transport and store, so you can only manually hold a high-pressure air gun to blow off the mealybug on the fruit. " Li Junlin said that before, because the packaging factory was not well separated and the cleaning staff did not standardize the process, the blown-off scale insects easily attached to other fruits for the second time.

  The reporter went to a local packaging factory and saw that there were white insect nets in the operation areas such as "purchase area", "clean area" and "packaging area", and there were air guns and special cleaning baskets covered with insect nets in the clean area.

  While the facilities of the packaging factory are perfect, cleaning skills are also the key. The cleaner should hold an air gun with one hand and hold the fruit in the palm of his hand, and the fruit pedicle should be blown upward and from top to bottom. The air gun should always be downward to avoid blowing pests or eggs to other places, and the cleaning time of each fruit should not be less than 30 seconds.

  "Although the new standard will increase the cost, we have to do this for the sake of fruit quality." Wu Mengtai, head of the packaging factory, said.

  Li Junlin said that Taitung University will conduct on-site counseling and rectification inspection on each packaging factory one by one. According to the new cleaning standards, the pest removal rate can be increased from about 80% before to 99% today, which meets the quality standards of mainland China.

  Walking into Taitung University, the reporter found that there are also a group of special "students" who are also looking forward to returning to the mainland market. Since the beginning of August, Taitung has held five training courses on quality certification of annona in Taitung University, covering the space allocation of packaging plants, certification of production and marketing resumes, pest control methods, etc. About 100 packaging plant managers and technicians participated in each course.

  Yang Zhenqi, agricultural Commissioner of Taitung County, said that the rectification process is complicated and meticulous, but farmers are very cooperative. In the next step, experts will complete the on-site counseling of all packaging factories, provide suggestions for improvement, and give certification after improvement.

  "Now I have great confidence in fruit, and I will put the highest quality ‘ Pineapple Sakyamuni ’ Bring it to mainland compatriots. " When talking about the future, Cai Hongyi said that only when there is a market can he earn money. Resuming sales to the mainland can triple his income, and the day of "laughing and laughing" is coming.

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There are three reasons why some people have negative views on running.

In the eyes of different people, the meaning of running is different. People who insist on running will regard running as a part of their lives. They enjoy running and at the same time, running brings them health and positive energy. Most people who don’t run think that running is a very boring and tiring exercise; And there are some people who have little knowledge of running. Instead of realizing the joy of running, they think they are self-righteous.

It is worth noting that among the above three categories of people, the first category is in the minority, and the second and third categories are in the majority. Because the latter is in the majority, their understanding of running has affected the direction of public opinion, which has led to low or even negative evaluation of running among the people. There are three typical examples:

Because of the above views, many people are discouraged from running, and some even advise their running relatives and friends to stay away from running in case of accidents. We can also see arguments between runners and non-runners on the Internet. Now I will talk about the above three typical problems from the perspective of runners.

01 > > Does running really hurt your knees?

"Running hurts my knee" is the most popular negative view of running. The author was once asked by several friends whether running hurts my knee. The actual situation is that I have been running for more than 2,000 kilometers, and I have never had knee pain. My running friends have never had knee pain. Most of the running injuries I know are foot pain, muscle strain and falls, of which foot pain is mostly related to sprain, and muscle strain is a situation that occurs in most sports. In addition, every running friend has no knee pain.

As for knee pain, it is said that there is only one kind of person who will have knee pain when running, and that is "running knee". This kind of person is not suitable for running by nature, and there are elements of abnormal knee bone development in it. So as long as you are not a "running knee", you can rest assured that there will be a problem of running knee pain.

02 > > About accidents caused by running.

It is widely circulated that marathon running may cause accidents, and there is a lot of related information on the Internet. In fact, if you explore it carefully, you will find that accidents caused by marathon are actually very few and belong to very small small probability events. However, accidents caused by marathon are easy to attract social attention, mainly because marathon events are often local high-level sports events, and the media are more concerned. If there is an accident, news will easily fly all over the place. In fact, the accidents of marathon running are far less than those of swimming, cycling, racing, boxing, football and other sports.

03 > > Can you lose weight by running?

There is also a widespread negative comment on running, that is, running can’t lose weight. This understanding exists not only among ordinary people, but also among some so-called fitness experts. The reason for this situation is that some unreliable fitness theories mislead people’s views, one of which is "running takes 30 minutes to start burning fat". In fact, this statement belongs to the fitness theory of Jianghu School, and there is no scientific basis, but it is just a rumor on the Internet.

Someone ran only a few times at intervals, only a few hundred meters at a time, and arbitrarily said that running can’t lose weight. In fact, this is an irresponsible behavior and excuses his laziness. In the final analysis, losing weight is not an easy task. If you want to lose weight, you have to pay sweat, time and energy. For running, the threshold for losing weight is to run 3 kilometers a day. As long as you can do it, you will definitely lose weight.

Summary:

Running is the king of physical training. Sports and military physical training will take running as the primary means. The main reason is that running can quickly create exercise and its exercise efficiency is very high. At the same time, running is a simple and easy exercise, with low requirements for venues, equipment and teams, and anyone can participate, so running is a very good choice for a person in the process of fitness.

通过admin

What do you think of "prices around": the year-on-year increase in fresh fruit prices has dropped significantly.

  According to the data released by the National Bureau of Statistics on September 10th, food prices rose by 10% year-on-year, of which pork prices rose by 46.7% and fresh fruit prices rose by 24%, which was an important reason for the increase in food prices. So, what is the current fruit price trend? Can the price of fruit come down gradually? The reporter conducted an interview on this.

  The price increase of fresh fruit in August dropped by 15.1 percentage points compared with the previous month.

  At 6 o’clock in the evening, Tianshixin Life Market in Beijing Shifoying is very lively. "Fruits are all reduced in price!" Sister Fan, a fruit vendor, pointed to her own fruit and said, "When grapes first came into the market, Kyoho was more than a kilo of 10 yuan, but now it is about a kilo of 4 yuan. Mo Tong watermelon also dropped from a catty of 3.5 yuan to 3 yuan. Compared with this time last year, the price has not risen, and the price of Apple has dropped a lot! "

  In Urumqi, more than 2,500 kilometers away, Mr. Zhang, who is waiting in line at the fruit shop, pointed to the peaches in the basket and said, "Such a good flat peach was sold to 32 yuan for one kilogram at the most expensive last year, and it was not in 20 yuan when it was first listed this year. Now it can be bought in 10 yuan."

  The sales price of fruit in the market has dropped, and the purchase price of fruit beside the orchard is relatively stable.

  Luochuan County, Yan ‘an, Shaanxi Province, has an apple planting area of 530,000 mu. It is estimated that the output of apples will exceed 930,000 tons this year, and the output value is expected to exceed 5 billion yuan. It is a veritable "hometown of apples". Today, it is the most prosperous time for Luochuan Apple to trade.

  "Early-maturing apples are 4 yuan per catty on the first day, 3.5 yuan on the second day, 2.5 yuan on the third day, and then stabilized in 2 yuan." Jia Jiali, a villager in the third group of Zhuniu Township, Luochuan County, planted 6 mu of apples this year. On September 4, foreign wholesalers went to the street to start buying apples. "Most of my family are late-maturing Fuji, and this year’s output is high. It is estimated that the purchase price will be one catty in 3 yuan, slightly lower than last year."

  In Shanxi, Yang Xinmin, a fruit grower in Xicun, yongji city, planted 7 mu of red Fuji apples. He has the same feeling about the change of fruit purchase price. "The early-maturing apples planted in the village, when they first went on the market, the purchase price was one kilogram and one piece of seven or eight, followed by only one piece of four or five. Late-maturing Fuji apples are estimated to be only seven or eight cents a catty, which is less than one dollar, which is more than half lower than last year. " Yang Xinmin said.

  According to the national data, since July, with the large number of seasonal fruits such as watermelon, melon, peach and apricot on the market, the prices of various fruits in the market have gradually dropped. In August, the price of fresh fruit rose by 24% year-on-year, and the growth rate dropped by 15.1 percentage points from the previous month.

  According to the price monitoring of China Fruit Circulation Association, on September 6th, the wholesale price of Red Fuji (above the second grade of 80mm) in China dropped from the highest point of 14.71 yuan per kilogram on July 2nd to 13.15 yuan, a decrease of 7.6%. The wholesale price of Huangguan pear (weighing more than 250g) dropped from the highest point of 15.19 yuan per kilogram on June 25th to 6.09 yuan, down by over 59.9%. The national average wholesale price of Kyoho grapes also dropped to 7.98 yuan per kilogram from 9.8 yuan on August 6th.

  Factors such as widespread low-temperature freezing weather and reduced fruit production in southern China have pushed up fruit prices.

  The price of fresh fruit attracts people’s attention, mainly because since Tomb-Sweeping Day this year, the prices of bulk fruits, such as apples and pears, have risen rapidly, and the speed and range of increase have exceeded those of previous years.

  According to the data released by the National Bureau of Statistics, in April, the national fresh fruit price rose to double digits year-on-year. Since then, the fresh fruit price has been rising all the way. In June, the fresh fruit price rose by 42.7% year-on-year, which reached the peak of this year, affecting the CPI increase by about 0.71 percentage points. However, the year-on-year increase in fresh fruit prices in July has narrowed to 39.1%; From the ring comparison, the price of fresh fruit decreased by 6.2% in July.

  Is the increase in fruit prices caused by the increase in production costs? The reporter learned from interviews in Xinjiang, Shaanxi and Shanxi that the planting cost and transportation cost have not changed much in recent years. "The labor cost is about one day from 100 yuan to 120 yuan, plus the cost of chemical fertilizers, pesticides and fruit bags. The total cost of 6 mu of land is 17,000 yuan, and the cost has been relatively fixed in recent years." Jia Jiali said.

  So what is the reason for pushing up the price of fresh fruit?

  "In the first half of this year, especially in the second quarter, fruit prices rose sharply and quickly, which was caused by the superposition of comprehensive factors." Lu Fangxiao, president of China Fruit Circulation Association, said.

  First of all, last year, the weather was bad, and the fruit output declined, which led to a decrease in inventory this year and pushed up the fruit price. According to Lufang School, during the period of Tomb-Sweeping Day in 2018, the nationwide low-temperature freezing weather had a great impact on the fruit producing areas. The output of the main apple and pear producing areas such as Shandong, Shaanxi, Hebei, Gansu, Henan, Shanxi and Xinjiang all decreased to varying degrees. The main reasons for the general increase in fruit prices were the decline in output, the lack of stocks and the changes in the relationship between supply and demand in the market.

  "April and May are the off-season of fruit supply every year. In summer, fruits have not been listed in large quantities, and the varieties are not rich. There are fewer types of fruits to choose from, and the stocks of apples and pears are small, which further increases the prices of fruits such as apples and pears." Lu Fang said.

  Secondly, in the first half of this year, the extreme weather was "difficult to destroy flowers", which led to the reduction of fruit production in the south and further increased the price of fresh fruit. Zhao Junye, a researcher at the Institute of Agricultural Information, Chinese Academy of Agricultural Sciences, said that in the first half of the year, due to adverse weather, southern fruits such as litchi were reduced due to disasters, and the listing of watermelons and melons was delayed, which overlapped with the low inventory of stored fruits such as apples and pears, and the staged supply in the fruit market was tight, which led to a significant increase in fruit prices in the first half of the year, especially in May and June.

  Finally, digesting high-priced stocks has also led some fruit vendors to be reluctant to cut prices. Li Bingliang, a fruit merchant who is engaged in fruit purchase and wholesale in Urumqi, told reporters that most of the red Fuji apples on the market are still in stock last year. Because of the high purchase price and long-term storage in cold storage, these costs can’t be reduced too low, but with a large number of fruits in season this year, there is no market for high-priced apples in stock last year.

  There is a bumper harvest of fruit this year, and the price will return to a reasonable level.

  "From the price curve of the past years, July and August are the times when apples are green and yellow. Most of the apples sold are frozen last year, and the price is the most expensive, while the harvest season is often the low price." Qu Zhigang, director of the Apple Marketing Office in Luochuan County, Shaanxi Province, said, "It can be expected that the price of apples will fall from a high level and tend to be stable in the next few months."

  According to the investigation of China Fruit Circulation Association, only a few small areas have abnormal weather during flowering this year, and most apple and pear producing areas have a bumper harvest in sight. According to the main producing areas, the amount of apple bagging in 2019 has increased significantly compared with that in 2018. The newly-built orchards in western producing areas such as Shaanxi, Gansu and Xinjiang will be put into production one after another, and the total output will increase. In addition, the purchase price of fruits in the 2018 season is high and the benefits are good. Fruit farmers will increase investment and strengthen management in the orchards in the 2019 season, and the quality will also be improved.

  "It is estimated that the total output of apples and pears will reach or exceed the historical peak in 2019. In addition, imported fruits will continue to enter the China market, and the domestic market supply is sufficient to fully meet the market demand, and the fruit price will return to a reasonable level." Lu Fang said.

  According to reports, the origin of China’s imported fruits has expanded to more than 60 countries and regions. According to the data released by the Ministry of Agriculture and Rural Affairs, the import of fruits and products in the first half of the year was 4.17 million tons, up 31% year-on-year. The import channels were basically smooth and the import momentum was strong.

  "The overall supply of fruit is abundant, which will drive the price of fruit to continue to fall. Homogenized ordinary and low-end fruits may be difficult to sell at low prices during the centralized listing period, while high-quality and characteristic fruits that meet the needs of consumption upgrading can still sell at higher prices. " Zhao Junyi said.

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A bowl of glutinous rice balls is full of energy.

Lantern Festival lights
When it comes to Lantern Festival, what comes to mind first? It’s a soft, glutinous and elastic Lantern Festival, a lively and exploding fireworks; Or is it the romance after dusk, when people suddenly look back? I believe that no matter what you think, there must be lights.
Lantern Festival on the fifteenth day of the first month, the night of the first full moon after the Spring Festival, is the first reunion season on earth. As the saying goes, "A moon without lights is not entertaining, and a moon without lights is not spring." Lantern Festival is also called "Lantern Festival". Opening lanterns and watching lanterns on Lantern Festival night has long been a traditional holiday custom, and it has been passed down to this day.
Most people tend to think that the custom of lighting lanterns on the Lantern Festival originated in the Han Dynasty. A popular saying is that Emperor Wen of Han started to celebrate the Lantern Festival to commemorate the suppression of the "Zhulu Rebellion" and advocated having fun with the people, so every family decorated with lanterns and colored decorations on this day. According to records, after the death of Emperor Gaozu Liu Bang, Lv Hou monopolized state affairs. This situation did not improve because of Lv Hou’s death. Instead, the Lushi clan wanted to seize power. The day when Emperor Wendi put down the rebellion happened to be the fifteenth day of the first month.
There is also a saying that this tradition originated from religion. Those who insist on the origin of Taoism believe that the fifteenth day of the first month is Shangyuan Festival, the fifteenth day of July is Zhongyuan Festival, and the fifteenth day of October is Xiayuan Festival. The three officials in charge of the three elements are heaven, earth and water, and the celestial official in charge of the three elements is happy, so the lantern festival should be lit. Those who advocate the theory of the origin of Buddhism believe that Emperor Hanming believed in Buddhism. He heard that Buddhism observed Buddhist relics and lit lanterns to worship Buddha on the fifteenth day of the first month, so he ordered that "lanterns were lit to show Buddha" in palaces and temples on this day. This practice gradually spread to the people.
It is difficult to find out which statement is more true about the origin of Lantern Festival custom, but more importantly, for ancient people, the curfew can be temporarily lifted on the night of Yuanxi, and they can walk in the brightly lit streets and enjoy the lanterns. Although thousands of years have passed, people are eager to celebrate festivals and yearn for a better life.
Shangyuan Lantern Color Map (Ming Dynasty) (Source: Network)
If someone looks at the lights, of course, someone has to make them. The production of ancient lanterns originated in the Han Dynasty, flourished in the Tang Dynasty and matured in the Song Dynasty. After continuous inheritance and development, it has reached a state of perfection in the Ming and Qing Dynasties.
According to the way of viewing, lanterns can be roughly divided into two categories: one is dynamic performance lanterns, such as dragon lanterns and lantern lanterns; There is also a static ornamental lantern, such as palace lantern, gauze lantern, Suzhou lantern and Yangzhou melon lantern. According to the placement method, it can also be divided into chandelier, seat lamp, wall lamp, lantern and so on. In the Tang Dynasty, large-scale lantern groups began to appear, and lanterns of various colors formed a lamp tree, a lamp tower and a lamp mountain, which were brilliant and varied.
The production of ancient lanterns combines a variety of techniques, materials, techniques and procedures, presenting a comprehensive art form. Commonly used techniques include painting, paper binding, weaving, paper cutting, embroidery, pasting and so on. Commonly used materials are bamboo, wood, rattan, metal, silk, paper and so on.
There is a general process for making lanterns, including about 20 processes: first, press the bought paper out of wrinkles, dye it in various colors, and wait for the stains to dry; Then according to a certain size, bamboo is broken, made into bamboo sticks and tied into a skeleton; Then start paper-cutting, origami, and make it into various needed shapes; Finally, hang up red tassels and other decorations. Such a simple lantern is ready.
In addition to simple lanterns, there is also a kind of lanterns that are meticulous and complicated, that is, palace lanterns known for their exquisite beauty, grace and elegance. Ancient palace lanterns were named after being made and used by palaces and officials, so they also represented the royal style to some extent.
Palace lanterns have a variety of shapes, including square, hexagonal, octagonal, square victory, flower basket, dragon and phoenix, fan and so on, among which hexagonal palace lanterns are the most representative. The materials used in the framework are also mahogany, rosewood, rosewood and carved copper, and the materials used in the lamp surface are gauze, glass or horn pieces. Decorative patterns are colorful and auspicious, including landscapes, flowers and birds, figures and so on.
Palace lantern was founded in Luoyang, which has been a national intangible cultural heritage project. There are more than 70 processes to make a Luoyang palace lantern, mainly including lighting, pinching, screening, pasting, mending, painting, setting, washing and decorating, which can be roughly divided into several steps. Skeleton making: in the process of skeleton making, the bamboo should be steamed and dried in a pot, and then the rough skin of the bamboo should be scraped clean, and the bamboo should be cut into a certain length according to the size of the lantern made; After the bamboo is ready, we start to make bamboo sticks, first break the bamboo pole, then split the bamboo sticks, cut the bamboo sticks, drill bamboo holes and other nearly ten processes; Then connect these bamboo sticks in series, and the skeleton of the palace lantern becomes. Lamp cloth: paste must be evenly spread on each bamboo stick, and then the previously cut cloth should be gently covered on the open lamp holder, and then the brush should be dipped in the paste to brush it flat. Decorate: After the paste is dried, you can decorate it with paper cuts or write on it. It usually takes a day or two to make a palace lantern.
Palace lanterns (source: Qiantu. com)
Compared with the ancient palace lanterns on the tall buildings, there is also a kind of lantern with distinctive features, which is closer to the people, and that is the lantern. The lantern is also called the lantern. As the name implies, the lantern is a lantern that can be turned. In ancient times, the lantern was generally made of sorghum straw as a lamp holder, and a flat wind wheel was installed. The patterns formed by paper-cutting were evenly arranged around the wind wheel, and the candles in the lantern were lit. The candlelight heated the air and pushed the wind wheel to rotate, and the patterns "walked" up. The most commonly used pattern in ancient times was the pattern of military commanders riding horses. When the lights turned, these people were like riding horses, and you chased each other, which is the origin of the name of the lantern.
The production of the lantern makes use of the principle that hot air rises to generate thrust, which seems simple, but it is also the original application of the working principle of modern gas turbines. On the occasion of the festive season, you might as well do it yourself and experience the wonderful ideas and skills of the ancient working people in China thousands of years ago.
The principle of the lantern (Source: China Digital Technology Museum)
references
[1] Liang Manman. Luoyang Palace Lantern production skills and inheritance [J]. Art Jian, 2017(03):122-123.
[2] Zhang Tongsheng. The origin of the Lantern Festival and its traditional construction [J]. Central Plains Cultural Studies, 2021,9 (02): 101-108. Doi: 10.16600/j.cnki.41-1426/c.2021.02.012. 。
[3] Zhang Jing. Analysis of Lantern Festival culture in China [J]. Changjiang Series, 2018(27):39-40.
[4] Jin Kaicheng. Lantern Festival: China cultural knowledge reader [M]. Changchun: Jilin Literature and History Publishing House, 2012.
[5] Chen Xiulian, Dong Sheng. Shangyuan Period: Lantern Festival [M]. Changchun: Jilin Publishing Group Co., Ltd., 2012.
[6] Lu Xiang. Chinese traditional festival poetry story: Spring Festival Lantern Festival [M]. Shanghai: Shanghai Far East Publishing House, 2017.
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Source: Damei Science
Editor: sweeping monk
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