The Chinese bio-specific immunoglobulin made its first public appearance at the Service Trade Fair

At the 2020 China International Trade in Services Fair held in Beijing from September 5th to 9th, Sinopharm Sinopharm, which was invited to participate in the public health and epidemic prevention special exhibition area, presented two new inactivated vaccines for the new crown. The identity of "Main Coffee" made a stunning debut for the first time and attracted the attention of the audience.

　　 It is understood that the two COVID-19 inactivated vaccines exhibited at the exhibition have now entered the final phase III clinical trials, and are being carried out intensively in the UAE, Bahrain, Peru, Morocco, Argentina and other countries and regions. The enrolled 50,000 people were vaccinated, and the sample population has now covered 115 countries, and progress in all aspects is leading the world. At the same time, China National Biotech has established high-level biosafety production facilities in two biological products research institutes in Beijing and Wuhan, and the total annual production capacity of the two vaccine production workshops can reach 300 million doses.

In addition, China's bio-specific immunoglobulin, which has played an important role in the prevention and control of the epidemic in Hubei and Wuhan, as well as in the emergency treatment of critically ill patients in Beijing Xinfadi, Urumqi, Xinjiang, etc., is also in the service trade fair. Made its first public appearance on In the context of the continuous deterioration of the new crown pneumonia epidemic situation in many countries around the world, China's biotechnology anti-epidemic achievements have attracted attention.

The People's Liberation Army launched two missiles into the South China Sea yesterday (26th) morning, one of which is the Dongfeng 21D aircraft carrier killer anti-ship missile. This move is to warn the United States.

On Tuesday, the U.S. U-2 high-altitude reconnaissance plane once broke into the no-fly zone for live-fire exercises in the northern theater of the People's Liberation Army, prompting the Chinese Ministry of Defense to protest, saying that the United States was provoking. Yesterday the People's Liberation Army conducted a test-fire of anti-ship ballistic missiles in the South China Sea, and the US military dispatched reconnaissance planes to conduct reconnaissance.

The report pointed out that the PLA launched Dongfeng 26B and Dongfeng 21D missiles, intended to warn the United States. The two missiles were launched from Qinghai and Zhejiang, respectively, towards the sea between Hainan Province and the Paracel Islands.

Previously, the Hainan Maritime Safety Administration had announced that it would conduct military training in the waters southeast of Hainan Island from the 24th to the 29th, and both missiles fell into the exercise prohibited zone.

Science and Technology Daily, Beijing, August 25 (Intern Gao Xingjian) According to a recent report on the "Nature" website, through in vivo experiments on small laboratory animals, two groups of researchers in the United States and China have discovered that the infusion of candidate new crown vaccines in the nasal cavity can start To achieve the immune effect, and may be more effective than traditional injection vaccines, it is expected that after the vaccine is put into use, it can be provided to the public more efficiently, and its social benefits cannot be underestimated.

In order to implement the nasal vaccination experiment, a team from the University of Washington School of Medicine designed a candidate vaccine that can encode the spike protein of the new coronavirus. It is through this spike protein that the new coronavirus completes the infection process by binding to the host cell. The researchers injected the vaccine into mice that have the human receptor corresponding to the protein after bioengineering.

According to records and observations, after the injection of the vaccine, no infectious virus was found in the lungs of the mice exposed to the new coronavirus, but a small amount of viral RNA was indeed detected. In contrast, no viral RNA was detected in mice vaccinated nasally, combined with other evidence that nasal vaccination can achieve complete immunity.

At the same time, the research team of the First Affiliated Hospital of Guangzhou Medical University used another vaccine that encodes the spike protein of the new coronavirus to conduct experiments on rhesus monkeys. The researchers found that nasal vaccination is the same as traditional injection. Play the effect of preventing virus infection. At the end of the experiment, the trachea and bronchus of rhesus monkeys who received different doses of injection or nasal drops were sampled to detect viral nucleic acid at 9 sites, and the results were all negative. In contrast, monkeys that have not been vaccinated have detected high levels of virus in different locations.

The researchers said that the discovery of nasal vaccination methods can enable people to instill vaccines by themselves, which makes vaccination more convenient and easy. At the same time, the method of nasal immunization is expected to reduce the potential immune problems caused by the adenovirus vector itself and achieve better The immune effect.

According to domestic media reports, at the Luoyang-Gree China Intelligent Manufacturing Summit Forum on August 1, Gree Electric’s Dong Mingzhu said that companies should have higher-end R&D centers in China, and Gree’s 15,000 R&D personnel do not have a foreigner or A returnee.

　　 Dong Mingzhu said that the money we make as a business is not placed in our pockets, but rather willing to take it out, cultivate our own team, and cultivate outstanding R&D personnel.

"I remember every time I went to a company at that time, everyone said that I had introduced the most advanced equipment in the world. I also said where my talents come from, and some people said which country the R&D center is located in. Just advanced."

　　 Dong Mingzhu said frankly that he is different from what others think. I think we should have a higher-end R&D center, which is in China. Therefore, all of Gree Electric's 15 research institutes are in Zhuhai, and none of them are abroad. None of our 15,000 R&D personnel is a foreigner, nor is there a returnee.

　　 It is worth mentioning that Dong Mingzhu, chairman and president of Gree Electric, said in an interview that no company now dares to advertise "one kilowatt per night". This statement is actually a secret change.

　　 Dong Mingzhu said that now some of the more than 1,000 cheap air conditioners are sold to renters, because they do not live for rent, so they are the cheapest to buy. But when the tenants live in, they are unlucky, not only the electricity bill is very expensive, but also the noise is very loud.

　　 Regarding the previous corporate propaganda of "one kilowatt-hour of electricity", they actually changed the concept. The actual situation is that the ambient temperature is constantly changing, and the air conditioner needs to be adjusted according to temperature changes. And often shutting down and restarting is the most power-consuming, this process may require one or two kilowatt-hours of electricity. Gree's air conditioner cannot be said to be "one kilowatt per night", but it should be no problem to save half of the electricity.

The completion and opening ceremony of the Beidou-3 global satellite navigation system was held in Beijing on the morning of July 31.
It was learned on July 29 that the 55th Beidou satellite navigation system (Beidou-3 geostationary orbit satellite) has completed in-orbit testing and network access evaluation, and has officially entered the network recently, using the ranging code number 61 to provide positioning and navigation timing. service. The satellite was developed by the China Academy of Space Technology and launched at the Xichang Satellite Launch Center on June 23, 2020.

Big Dipper has five abilities

The short message communication function is a "unique skill"

The Beidou satellite navigation system is an important space infrastructure independently constructed and operated by my country. It is also the largest complex space system with the largest scale, the widest coverage and the highest service performance requirements in my country so far.

Speaking of Beidou, the first reaction of many people is "navigation and positioning." Real-time navigation and fast positioning are the most basic functions of a satellite navigation system. In addition, Beidou also has three characteristic functions: precise timing, position reporting and short message communication.

"The Beidou satellite itself is a time service system in our country." Lu Xiaochun, deputy director of the National Time Service Center of the Chinese Academy of Sciences, said that the accuracy of the satellite-borne rubidium atomic clock on the Beidou-3 satellite is at the international leading level, reaching 5/10 billionths of a second per day. At present, this function has been widely used in communication, power, financial and other systems.

The position report function is closely related to the characteristics of Beidou's "active positioning". Active positioning is a major innovation of China's Beidou. It uses radio measurement technology and two geosynchronous orbit satellites to work together. It can not only answer the user "Where am I", but also tell related parties who follow the user's whereabouts "Where are you". Widely used in search and rescue, fishery and other fields, it is a "clairvoyance" to ensure people's livelihood safety.

The short message communication function is the "unique skill" of the Beidou system. Navigation satellites and communication satellites are two types of satellites, but Beidou navigation satellites have additional communication functions. Wang Bo, deputy secretary-general of the China Satellite Navigation and Positioning Association, said that Beidou users can not only know their location through the terminal, but also tell others about their situation through short messages. This function is essential in areas where there is no network coverage such as deserts, oceans, deep mountains, and forests, or when disasters occur and communications are blocked.

In the Beidou No. 3 system, the ability of short message communication has been significantly improved. The ability to send information has increased from 120 Chinese characters at a time to 1,200 Chinese characters. It is widely used in many fields such as ocean fishing, rescue and disaster relief, and global search and rescue.

Benefit domestic services to the world

It is understood that the "Beidou" industrial chain is mainly concentrated in the user segment of the Beidou system, which is divided into three major links: upstream basic components, midstream terminals, and downstream operation services. Among them, the upstream basic components are mainly chips, boards, antennas and other basic components; midstream terminals mainly refer to navigation and positioning devices that can receive "Beidou" signals; downstream operation services mainly refer to government and enterprise users, industry users, Service providers and mass consumers provide various basic services such as positioning, navigation, timing, and short message communication based on "Beidou".

From providing services for the Asia-Pacific region to providing services for the world, Beidou's global networking not only means that Beidou has a wider service coverage, but also benefits the entire industry chain. Related industry chain products have an additional support system. These products The user experience, stability, and reliability of the device will be greatly improved, especially in the chip and terminal industries.

The efforts of Beidou's entire industrial chain benefit both domestically and globally. "In 2019, Beidou's overseas application cooperation and trade exchanges will become more frequent. Domestic Beidou basic products have been exported to more than 120 countries and regions. Based on Beidou's land right confirmation, precision agriculture, smart construction, smart ports, etc., it has been in ASEAN, South Asia, and Eastern Europe. , West Asia, Africa and other places have been successfully applied." Yu Xiancheng said.

Applications are only limited by imagination

The signal is on the horizon and applied around.

From clothing, food, housing, transportation to water, electricity, gas, and heat, from agriculture, forestry and fishery to disaster relief and mitigation... Beidou satellite navigation system is deeply integrated into social life and penetrates into all aspects of economic and social development.

Which way is smoother when driving on the road? How long does it take for the bus to arrive at the station for public transportation? How can I find a bike quickly when sharing a ride? No matter what mode of transportation you choose, you cannot do without the Beidou satellite navigation system.

The transportation industry is one of the largest users of Beidou satellite navigation systems. Beidou system is widely used in key transportation process monitoring, highway infrastructure safety monitoring, port high-precision real-time dispatch monitoring and other fields.

According to the "White Paper" data, as of the end of 2019, there were more than 6.5 million operating vehicles, 40,000 express and postal vehicles, about 80,000 buses in 36 cities, more than 3,200 inland navigation facilities, and more than 2,900 maritime navigation facilities in China. The Beidou system has been applied to the facilities, and the world's largest dynamic monitoring system for operating vehicles has been built.

When agriculture meets Beidou, planting is more labor-saving, seedling emergence is more worry-free, and labor productivity is greatly improved. In the farmland of Dashetai Town, Uradqian Banner, Bayannaoer City, Inner Mongolia Autonomous Region, unmanned planters are changing from "rare" to "common". Based on the Beidou positioning function, the planter operates on its own along a preset route. With this precise and scientific method, the seeding deviation per kilometer does not exceed 2 cm, and the seedling emergence rate per acre can increase by 10%.

When disaster warning meets Beidou, people are safer and property is guaranteed. Not long ago, in Leijiashan, Shimen County, Hunan Province, thanks to the "Beidou Satellite High-precision Earth Disaster Monitoring and Early Warning System", a timely warning was issued. Villagers located in the landslide-risk area were moved in time without any casualties. Through 24-hour real-time monitoring of the deformation and displacement of mountains, reservoirs, and rivers, Beidou provides early warning of possible landslides, subsidence, cracks, reservoir distress, and river water level surges to protect lives and reduce losses.

On the special battlefield, Beidou also responded quickly and played as sharply as possible. At the beginning of 2020, a battle against the new crown pneumonia epidemic was fought in the land of China. Vulcan Mountain and Leishen Mountain Hospitals rose on the ground. It was Beidou that achieved high-precision positioning and accurate mapping of complex terrain and landforms. The "location-finding" online drone platform can realize the precision spraying of drones and other epidemic prevention operations. It is also Beidou that provides high-precision data for it; material transportation vehicles are monitored and controlled in real time, and intelligent robots quickly send medical supplies from various places. The support system behind the hospital quarantine area is Beidou...

The Beidou system collides with new technologies such as 5G mobile communications, blockchain, Internet of Things, and artificial intelligence to build an emerging industrial ecological chain with Beidou space-time information as the main content, and promote changes in production and lifestyles and continuous innovation of business models. Create huge economic and social benefits.

In the future, Beidou has unlimited possibilities. Just as Academician Sun Jiadong, the first chief designer of the Beidou satellite navigation system, once said, “The application of Beidou is only limited by human imagination.”