After 6 years, has the deposit from Mobai finally arrived? Customer service response: always returnable. Reporter's actual measurement: still need to "queue up"
Illustration: A consumer successfully obtained a screenshot of the deposit refund network (the same below)Xinmin Evening News (Reporter Xu Chi): Over the past two days, some citizens have received refunds of 299 yuan in deposits from Mobiles. After uploading screenshots, they caused a lot of onlookers...
Common measurement methods for wafers (4);
1. Atomic force microscopeAFM is a device that uses van der Waals forces to measure objects...
Record breaking distance measurement for domestic 77 GHz millimeter wave chip packaged antenna
Science and Technology Daily News (Reporter Wu Changfeng): According to China Electronics Technology 38 Institute, at the 68th International Solid State Circuit Conference (ISSCC2021) held on February 17th, the institute released a high-performance 77GHz (gigahertz) millimeter wave chip and module, achieving the first international integration of two 3-transmitter and 4-receiver millimeter wave chips and 10 channel millimeter wave antennas in a single package, with a detection distance of 38.5 meters, Set a new global record for the farthest detection distance of millimeter wave packaged antennas...
Low cost mobile phone accessories for blood pressure measurement "within reach"
Technology Daily News (Reporter Zhang Jiaxin) Engineers at the University of California, San Diego have created a low-cost solution to lower the threshold for blood pressure monitoring. They have developed a simple, low-cost clip that uses a smartphone's camera and flash to monitor the user's fingertip blood pressure...