BEIJING, Aug. 2 (Xinhua) -- The following are the highlights of China's major technology news from the past week:
COMMISSIONING OF BDS-3
China declared the official commissioning of the BeiDou Navigation Satellite System (BDS) on Friday, marking the formal launch of the newly completed BDS-3 system for global users.
The BDS system involves efforts of more than 400 agencies and 300,000 research personnel and technicians.
China's Mars probe Tianwen-1 successfully carried out its first orbital correction Sunday morning, according to the China National Space Administration.
The probe conducted the orbital correction at 7 a.m. (Beijing Time) after its 3000N engine worked for 20 seconds, and continued to head for Mars. All the systems of the probe were in good condition.
ARJ21 REGIONAL JETLINER
China's independently-developed ARJ21 regional jetliner has been verified capable of operating in all high-plateau airports, its developer announced Thursday after due testings.
An ARJ21 airplane returned to Shanghai on Thursday after completing a half-month flight test, which thoroughly examined the aircraft's operation capacity in a high-plateau airport environment, said the Shanghai-based Commercial Aircraft Corporation of China (COMAC).
Chinese researchers have developed an early-warning system for myocardial infarction by combining electrocardiogram diagnoses and artificial intelligence technologies.
Early treatment is key to boosting the survival rate of myocardial infarction patients. An accurate warning system based on electrocardiograms may help prevent delayed treatment.
IMPERVIOUS SURFACE MAPPING
Chinese researchers have generated a global 30-meter impervious surface map with high accuracy.
The amount of impervious surface is an important indicator in monitoring the intensity of human activities and environmental changes. The use of remote sensing techniques is crucial to undertake global mapping of impervious surfaces covering large areas.