A wave of layoffs that has swept the entire Internet industry has intensified. China's Internet industry has experienced several crises and major changes in the past development process. There is also a "brief history of layoffs by major Internet
Diamonds are forever, Gold is precious but which is rarer? Gold is a heavy metal formed during the collision of neutron stars and is one of the rarest elements on Earth.During the formation of the earth, heavy elements gradually accumulated towards t
There are many types of printers. In addition to our common printers for printing some flat documents, there are also 3D printers. 3D printers are also called three-dimensional printers and three-dimensional rapid prototyping machines.
Titanium hydride , also known as titanium dihydride, chemical formula H2Ti.Insoluble in water.A gray-black powder resembling a metal. As one of the intermediate products of titanium smelting, it is widely used in metallurgy and other chemic
Titanium powder , titanium hydride powder: purity:95-99.4% and other specifications: Titanium powder: the product is silver-gray irregular powder, has a large suction capacity, high temperature or electric spark conditions under flammable.
Titanium nitride is a compound with a molecular formula of TiN and a molecular weight of 61.88. The tiN powder is generally yellowish-brown, the ultrafine TiN powder is black, and TiN crystals are golden yellow.
2021 could be the calm before the storm. Aside from a few new Apple Silicon Macs, 2021 was a quiet year for Apple. The new iPhone has improved camera and battery life but is otherwise nearly identical to the 2020 model. Aside from a slight c
Silicon single-electron/hole transistors (SETs/SHTs) and super-high frequency nanoelectromechanical resonators show great potential in quantum computation, sensing and many other areas. Recently, a group led by Prof. Guo Guoping from the Un
There are two types of BN materials in boron nitride (BN) ceramics: hexagonal and cubic structures. The hexagonal boron nitride crystal structure has a similar graphite layered structure, presenting a loose, lubricating, easily hygroscopic, lightweight white powder, also known as "white graphite.". Theoretical density: 2.27g/cm3; The Mohs hardness is 2. Hexagonal boron nitride has excellent electrical insulation, thermal conductivity, and chemical stability; No obvious melting point, and sublima
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