Satellite constellation has been applied in communication, reconnaissance, navigation, and other space missions, such as GPS, Glonass, Beidou, Starlink, etc. With the rapid development of Low Earth Orbit (LEO) constellations, mega constellation will inevitably become an important means of Earth observation and a key point in the development of future satellite technology. The configuration optimization design of LEO observation mega constellation in complex space environment is a nonlinear problem that is difficult to solve analytically. During the development, constellation design principles have shifted from the uniform coverage requirement to application requirements. However, previous method cannot provide solutions to constellation configuration optimal design based on high-precision orbital propagation.

A research paper by scientists at Peking University Third Hospital presented a study on the regulatory mechanisms of the ECS in the substantia nigra (SN) of PD rats following STN-DBS.A research paper by scientists at Peking University Third Hospital presented a study on the regulatory mechanisms of the ECS in the substantia nigra (SN) of PD rats following STN-DBS.

Surgical face masks help prevent the spread of airborne pathogens and therefore were ubiquitous during the COVID-19 pandemic. Now, a modified mask could also protect a wearer by detecting health conditions, including chronic kidney disease. Researchers reporting in ACS Sensors incorporated a specialized breath sensor within the fabric of a face mask to detect metabolites associated with the disease. In initial tests, the sensor correctly identified people with the condition most of the time.

New research has shown how small, inexpensive drones combined with free, open source software can be used by community forest organisations to calculate and monitor the amount of carbon stored in their forests.  

The Singapore-MIT Alliance for Research and Technology (SMART), Massachusetts Institute of Technology’s (MIT) research enterprise in Singapore, has launched a new interdisciplinary research group (IRG), Wafer-scale Integrated Sensing Devices based on Optoelectronic Metasurfaces (WISDOM), focused on developing next-generation 3D-sensing technologies for practical use across industries such as automotive, consumer electronics, aerospace and healthcare, among others.