Engine problems caused China’s J-20 production to be delayed. Photo: SCMP The South China Morning Post (Hong Kong, China) reported that the country has developed a new coating material for the engine, contributing to solving technical flaws and increasing the thrust of the engine. The new coating material was designed by Yuanke Energy-saving and Environmental Technology Development Co., Ltd. in Hebei Province. This material can withstand temperatures of 1,800 degrees Celsius and helps protect the engine from the risk of corrosion while ensuring higher power. The current widely used military aircraft engine in China is the WS-10, which can withstand a temperature of about 1,470 degrees Celsius and the improvement can make a significant contribution to increasing the engine’s output power. . The propeller has long been considered the “Achilles heel” of China’s military aircraft engine development program. An obvious example is the delay in the development of a new engine that slows down the production of China’s fifth-generation stealth fighter J-20. Chinese scientists have spent years trying to get the WS-15 engine designed for the J-20 to work, but still have problems with the propellers that constantly heat up at high speeds. As a result, the Chinese Air Force is forced to use Russian-made engines or an improved version of the WS-10. Both of these engines are said to reduce the combat and stealth capabilities of the fighter. The new coating material consists of a fullerene, a ball-shaped carbon molecule. The manufacturer says the coating has a “2,000-hour lifespan” and is resistant to corrosion. The special thing is that this material can withstand the heat required for the J-20 to operate at its maximum capacity.

Illustration. “We don’t want to talk, because people ask me to share. Actually, Bkav researched Corona virus vaccine (Covid-19) a year ago, ”Mr. Quang told VnEconomy a few minutes ago, regarding a recent online discussion about Covid-19 and he revealed. Bkav has established a new generation vaccine research group. Bkav Chairman said that after finishing the first epidemic, around May 2020, Bkav went to meet with representatives of the Central Epidemiological Party to learn about vaccines, and this activity of Bkav came. Currently still in theoretical research phase. Mr. Nguyen Tu Quang. The new technology vaccine is like making a chemical – 3D printed – that gives the shape of a virus “to fool the body into making antibodies”. “At that time, Bkav’s Institute of AI Technology set up a group to specialize in researching vaccines and epidemic prevention issues, which Mr. Quang said he often shared. Research activities on this vaccine are still going on, ”said Bkav Chairman. According to Mr. Quang, now the new generation vaccine mainly uses technology. Vaccines are like 3D printing. Conventional vaccines have to be grown on other hosts or have real samples and then transplanted to other things before it can be replicated and vaccinated. While new technology vaccines are like creating chemicals, but in 3D printing with nanotechnology, the technology content is very high. This vaccine can be produced in large quantities, and cultured normally cannot do much. According to this leader, the field of research and production of vaccines is very potential because the technology is very high. Because you can imagine virus variation very quickly. If the traditional method of making vaccines responds to variations is many years. But the new method can be adjusted immediately by technological measures … like programming. To put it simply, it is very related to Bkav as programming anti-virus software in your computer, this is a program to create a new virus shape corresponding to a variant virus, like programming anti-virus software. So, Mr. Quang added. Vietnam’s current vaccine technology, according to Bkav President, is still using mainly culture, of course there is also new technology in culture, but the efficiency is still low – it is difficult to produce hundreds of millions of doses. Whereas the new technology vaccine is like making a chemical – in 3D printed form – that gives the shape of a virus “to fool the body into making antibodies”. This is like programming to make vaccines, and technology plays an important role. Mr. Quang also said that when he met with the leader of a vaccine manufacturing company, the leader also analyzed research and production of new generation vaccines now that the technology factor occupies more position – the computer, programming, is information technology, with a lot of content. Of course, there must be knowledge about biomedical science, so Bkav has recruited more human resources in this biomedical field. However, according to Mr. Quang, this is a long-term story, of many decades, not a day or two. And in fact, new technology vaccines have been studied for decades, so when facing the urgent “Covid” period, they were immediately brought to the market and confirmed that they are effective. Why does Bkav want to participate in this field? Mr. Quang questioned and explained to VnEconomy that, as the “Covid disaster” has been going on, the coming here will not be a nuclear weapon and a biological weapon, which everyone can see. And if there is no technology to make vaccines with new technologies, it is “difficult to survive” with viruses similar to Corona virus. Second, according to Quang, in the world today, the production of vaccines depends on several companies, so Vietnam must also master new vaccine production technologies. . “Especially in Vietnam with a hundred million people, we have to master such things, as before, other vaccines we also have to master. Bkav’s goal in entering this field is to master new vaccine technologies, and this is something technology companies must take part in, ”said Bkav Chairman Nguyen Tu Quang. And only that, according to Mr. Quang, if an epidemic occurs, Vietnam can take the initiative. Bkav’s “Vaccine Journey” is a long story with a vision of a biological weapon, after the Covid-19 story, there will certainly be more (large) countries that have more motivation to manufacture weapons. biogas, but Bkav must prepare (research vaccine) right now ”, said Mr. Nguyen Tu Quang.