United States President Donald Trump is invoking emergency powers to boost the ability of the U.S. to produce critical minerals — and potentially coal — as part of a broad effort to ramp up the ...
6 小时
The Daily Galaxy on MSNUCLA Physicists Discover Mysterious Spiral Patterns On Solid SurfacesA team of physicists at UCLA has uncovered a strange and unexpected phenomenon—spiral patterns forming spontaneously on solid ...
Hundreds of regular patterns spontaneously emerge on a small germanium chip. A curiosity about tiny dots on a germanium wafer ...
On September 6, 2024, the US Department of Commerce’s Bureau of Industry and Security (BIS) introduced an interim final rule that imposed ...
Curiosity about a mistake that left tiny dots on a germanium wafer with evaporated metal films led to the discovery of beautiful spiral patterns etched on the surface of the semiconductor by a ...
These curbs will be expanded in October 2023 and December 2024 — when China responds with a ban of U.S. exports for various high-tech materials like gallium and germanium. Biden also hikes tariffs on ...
16 天
AZoQuantum on MSNUnlocking Cosmic Secrets with Germanium DetectorsDuring WWII, germanium was primarily used in point-contact diodes for radar pulse detection. After the war, from the 1950s to ...
MOE Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry, IGCME, Sun Yat-sen University, Guangzhou 510275, China ...
ARECOMS, established in 2019, oversees the regulation of strategic minerals such as coltan, cobalt, and germanium. It aims to stabilize markets, formalize the artisanal sector, and ensure ...
Lehigh University researchers developed germanium selenide and tin sulfide materials demonstrating photovoltaic absorption of 80% efficiency in solar cells, far exceeding the theoretical ...
一些您可能无法访问的结果已被隐去。
显示无法访问的结果