The manuscripts of the "original" column of the Voice of the Chinese Academy of Sciences are all from the front-line researchers of the Institute of the Chinese Academy of Sciences. Today we will take stock of the 10 most enthusiastic articles in the "original" column in the past month.
1. The heart of the Hall thruster in the "Tianhe" core cabin
Not long ago, the Long March 5B carrier rocket carrying the core module of the "Tianhe" of the Chinese space station was successfully launched at the Wenchang Cosmodrome in Hainan, and the mission was a complete success. In addition to four rail-controlled engines and 22 attitude-controlled engines, the "Tianhe" core capsule propulsion system is also equipped with four Hall electric propulsion engines for the first time. The Hall thruster cavity in the electric propulsion system uses a boron nitride ceramic matrix composite material developed by the Institute of Metal Research of the Chinese Academy of Sciences.
2. AI vs AI: How to identify the deep forgery with the false and real? 丨Zhizhi
In recent years, the rapid development of deep generation models has spawned a series of mature face deep forgery technologies such as Deepfake and face fusion. With the launch of entertainment applications such as Zao, the cost of face-forging technology has been rapidly reduced and rapidly promoted. The potential abuse of face forgery technology and the corresponding detection technology have aroused extensive discussion in all walks of life. Realistic fake images make it difficult to judge the authenticity of RGB images alone.
3. "Huan", coming soon! 丨 Earth Simulation Laboratory
With the development of society, human civilization is advancing rapidly, the natural environment is also quietly changing, global warming continues, environmental pollution intensifies, natural disasters occur frequently, and human beings are experiencing unprecedented questions and tests - what happened to the earth? To answer this question, we must scientifically understand the planet on which humanity depends.
4, the eye of heaven takes you to lianyungang 丨 look at the sky and the earth
Lianyungang City, a prefecture-level city under the jurisdiction of Jiangsu Province, is also known as Gangcheng, because it faces Liandao Island and leans back on Yuntai Mountain, named Lianyungang. It is home to China's important seaport, and in February 2021, Lianyungang was named one of the eleven international hub seaports in China. Today we follow Tianyan to see the changes in Lianyungang.
5, the magic flat firefly
Fireflies are the most famous terrestrial luminescent creatures. "Fireflies, flying slowly; summer nights, the wind blows softly...", such a beautiful scene is an ordinary picture in the childhood memories of people born in the 600s and 1970s. Nowadays, people are always lamenting that fireflies are far away, they either exist in memory or only appear on television.
6. "Birds must not be disguised" of the collared partridge
When you think of birds of prey, you usually think of large and medium-sized birds like golden eagles, vultures, and goshawks, tall as children and with wide wings. Unexpectedly, there is a petite bird with a body as long as a sparrow and as heavy as an egg, which is also selected as a bird of prey, and is ranked in the first echelon of the biological chain with golden eagles, vultures and goshawks. It is the protagonist of this article, the collared partridge.
7, the reality of the "snow mountain flying fox", to understand
“... no zoologist has dared to describe it（...... No zoologist would dare to describe it! In 1888, Oldfield Thomas, a phyologist at the Natural History Museum in London who had described 2,000 new species/subspecies, said this when he established the genus Cashmere shrew.
8. Radiation from seed plants may be the direct cause of the late Paleozoic glacial period
In recent years, climate issues have attracted much attention, of which global warming has become one of the most concerned climate issues. But we live in a time when the earth is not the hottest time on earth, will you be surprised?
9, the Banner of the Four Sons of The King - today's space landing field, tomorrow's space "watchtower" 丨Calling space
Last year, the much-anticipated "Chang'e" No. 5 probe returned with the soil dug up on the moon, not into the sea, but fell into the grassland, and many people knew a "king's breath" place name - the Four Sons Of The King Banner.
10, vegetables can not be "partial" Oh
Vegetables are the most important source of minerals, dietary fiber, vitamins and antioxidants that our body needs, and are an important part of our dietary structure. You know what? Like humans, vegetables need to be "eaten and drunk"!