News on China's scientific and technological development.

weig2000

Captain

China is quite close to Japan and Germany, the two manufacturing powerhouses. It will very likely catch up with those two in a few years.

Overtaking the US in robot density is impressive enough, before you start to ponder the implication of the absolute robot quantities. Note that robot density is measured in robots per 10,000 manufacturing employees, and considering that the number of Chinese manufacturing employees is probably order of magnitude larger than that of the US's, it's staggering.

Singapore is too small for a meaningful comparison with China.

South Korea, of course, is something else altogether.
 

Strangelove

Colonel
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Chinese scientists complete rice, Arabidopsis life-cycle experiments in space​

Xinhua | Updated: 2022-12-06 00:15

BEIJING -- Chinese scientists have completed the life-cycle growth experiments of rice and Arabidopsis in the Chinese space station and successfully obtained their seeds, said the Chinese Academy of Sciences (CAS) on Monday.

With the safe landing of the Shenzhou-14 spaceship's return capsule at the Dongfeng landing site Sunday night, the seeds of rice and Arabidopsis, which have undergone a 120-day life cycle, were delivered to China's manned space program's space application system along with other samples.

According to the CAS website, previously, scientists worldwide have only managed to obtain the seeds of a few crops like Arabidopsis, rape, wheat, and peas in space, except for the major food crop -- rice.

The Chinese research team has completed the full life-cycle growth experiment of rice for the first time in the world. It has also systematically studied the effects of microgravity on flowering in space using the model plant Arabidopsis, the CAS said.
The experiments, undertaken by the Center for Excellence in Molecular Plant Sciences under the CAS, were conducted from July 29 to Nov 25.

During this period, the astronauts collected the rice samples at the germination stage on Sept 21, the Arabidopsis samples at the flowering stage on Oct 12, and both samples at their seed maturity stage on Nov 25. The samples were then stored in the cryogenic storage device.

According to the CAS, the samples will be transferred to the laboratory in Shanghai for further scientific testing and analysis.
Through analyzing images acquired from space, scientists have discovered the effects of space microgravity on a variety of agronomic traits of rice, including plant height, growth rate, water regulation, response to light, etc.
 

henrik

Senior Member
Registered Member
China is quite close to Japan and Germany, the two manufacturing powerhouses. It will very likely catch up with those two in a few years.

Overtaking the US in robot density is impressive enough, before you start to ponder the implication of the absolute robot quantities. Note that robot density is measured in robots per 10,000 manufacturing employees, and considering that the number of Chinese manufacturing employees is probably order of magnitude larger than that of the US's, it's staggering.

Singapore is too small for a meaningful comparison with China.

South Korea, of course, is something else altogether.

Many of these robots are used in car manufacturing. As China dominates the car industry worldwide, many of these robots in Japan and Korea will be displaced. Guangdong province as a car making power house should have more robots than Korea.
 

Strangelove

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Chinese scientists develop ECG radar that can detect heart health from a distance​


  • Most ECG devices depend on skin sensors, but a University of Science and Technology of China team has developed a contactless alternative
  • Radio wave scanner can detect cardiac motion and transform the data into electrical signals with 90 per cent morphology accuracy, study says

Chinese scientists have developed a radio wave scanner that can detect the heart’s electrical activity from a distance, making remote monitoring of vital signs possible for the first time.

Regular ECG monitoring is known to play a crucial role in diagnosing and preventing heart disease. However, most such devices require sensors, or electrodes, which are placed on the patient’s chest area to record electrical signals from the heart.

Although this allows for efficient monitoring of cardiac health, the need for skin attachment can “restrict the reliability, adaptability and continuity of monitoring”, researchers from the University of Science and Technology of China said.
 

weig2000

Captain
Easy enough to manipulate this measure by massaging the number of "employees". I suspect you would be better off simply counting the number of industrial robots and dividing by working-age population...

Not exactly. Today's robots are mostly industrial robots. It makes sense to measure robots per 10,000 manufacturing employees as an index of robot density. In a service-dominated economy such as US or UK, it's not very "fair" to include all working-age population as the denominator. It would make more sense to use a different index, e.g. measuring the usage of digital tools, for white-collar workers or service business. In that department, I suspect the US would take the lead.
 

luosifen

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Chinese scientists establish first deep-sea in-situ spectroscopy lab in South China Sea

By Yu Xi Published: Dec 07, 2022 08:50 PM Updated: Dec 07, 2022 08:48 PM
The lander-based deep-sea multi-channel Raman spectroscopy system conducts operation in the deep-sea cold seep. Photo: Courtesy of Institute of Oceanology, Chinese Academy of Sciences

The lander-based deep-sea multi-channel Raman spectroscopy system conducts operation in the deep-sea cold seep. Photo: Courtesy of Institute of Oceanology, Chinese Academy of Sciences


Chinese scientists have successfully developed the first lander-based multi-channel Raman spectroscopy system, which can be mounted on the lander to form a deep-sea, in-situ spectroscopy lab in the South China Sea.

This lab is a step further in exploration for in-situ long-term experiments in extreme deep-sea environments, which can be used for study of the deep-sea marine ecology, global climate change and the origin of life, the project leader told the Global Times on Wednesday.

This project is led by Zhang Xin, a professor at the Qingdao-based Institute of Oceanology under the Chinese Academy of Sciences (CAS) in East China’s Shandong Province, which is the first ocean research institute in China.

Raman spectroscopy is an optical technique that detects intrinsic vibrational, rotational and other low-frequency modes in molecules upon inelastic scattering of monochromatic light.

The lander-based lab is an unmanned station, which is deployed in the seabed for scientists to carry out long-term and continuous regular research in the deep sea, to help us better understand how extreme environments like cold seep and hydrothermal vents affect the marine environment, Zhang told the Global Times.

“The concept of the lab was proposed in 2020. We want to introduce an in-situ lab that can work for a long term in deep-sea environments, as the previous deep-sea vehicles, such as ROV (remote operated vehicle) and HOV (human occupied vehicle), worked for a short term,” Zhang said.

His team worked on the project in 2021 and completed testing applications with deep-sea scientific research vessel Dongfanghong No.3 this year.

The lab can withstand deep-sea high pressure up to a depth of 4,500 meters, which means it can operate in most areas of the South China Sea, according to Zhang.

In the future, it could be deployed in deep-sea hydrothermal vents to study deep-sea hydrothermal sulfides and minerals, and these resources could be future strategic metal resources, said Zhang.

China has proposed the use of an in-situ scientific experiment station in recent years, which takes a deep-sea base station as the center, carrying unmanned submersibles, labs and other platforms to conduct in-situ experiments and exploration, according to the CAS in November.

Zhang said that this in-situ lab has worked in deep-sea cold seep areas of the South China Sea during the past three years, and the team will wait for peer review before publishing some of its other findings. The team published an article in the scientific journal Deep-Sea Research Part I this year.

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