China’s Long March-8 Y1 rocket was vertically transported to the launching area of the Wenchang Spacecraft Launch Site in south China’s Hainan Province on Wednesday. Next, the rocket will be filled with propellant and readied for launch in late December.
12-10-20 China sent two satellites for the detection of gravitational waves into planned orbit from the Xichang Satellite Launch Center in Sichuan Province.
The two satellites, which compose the Gravitational Wave High-energy Electromagnetic Counterpart All-sky Monitor (GECAM) mission, were launched by a Long March-11 carrier rocket( 355th mission).
The GECAM satellites will be used to monitor high-energy celestial phenomena such as gravitational wave gamma-ray bursts, high-energy radiation of fast radio bursts, special gamma-ray bursts and magnetar bursts, and to study neutron stars, black holes and other compact objects and their merger processes.
In addition, they will also detect high-energy radiation phenomena in space, such as solar flares, Earth gamma flashes and Earth electron beams, providing observation data for scientists.
China launched Gaofen-14, an optical satellite, onboard the Long March 3B carrier rocket on Sunday 11:58 am from Xichang Satellite Launch Center in SW China’s Sichuan Province.
The first ArF photoresist production line by Nanda Optoelectronics has been officially put into production. It is estimated that the annual sales will reach 1 billion yuan after the project is fully operational.
Photoresist 光刻胶 is the core material for the production of integrated circuits, which mainly plays the role of “transferring the designed image from the template to the appropriate position on the wafer surface”. Therefore, the quality and performance of the photoresist have an important impact on the final product and performance of the chip. High-end types such as ArF photoresist almost rely 100% on imports.
It is the first time to verify the oblique detonation engine concept successfully with wind tunnel tests and the standing oblique detonation undergoes the initiation, transition and full-developed stages. The experiments also demonstrated well the criteria proposed in this paper. According to research progresses on oblique detonation engines, the Sodramjet engine is very promising for hypersonic airbreathing propulsion because that the engine system is simple in its structure, efficient in the thermo-cycle, broad in its operation Mach number range and low in aerothermodynamic heating load.
12-4-20 The world’s highest power transmission and transformation project at over 4,300 meters above sea level became fully operational in Tibet on Fri. This marked the completion of electric power coverage in Tibet and also in the Chinese mainland.
12-4-20 Chinese scientists announced the construction of 76 photons (quantum bits) of quantum computing prototype “Jiuzhang九章”. In terms of speed, the speed of solving the mathematical algorithm Gaussian boson sampling is only 200 seconds, while the current supercomputer will take 600 million years. It is generally accepted that 50 quantum bits is the critical threshold to prove that a quantum computer has the potential to surpass traditional computers. The “九章” is named after a well-known mathematical treatise 九章算术 from ancient China.
The speed is 10 billion times faster than the 53 superconducting bits of quantum computing prototype released by Google last year. This achievement enables China to successfully reach the first milestone in quantum computing research: the superiority of quantum computing (also known abroad as “quantum supremacy”).
