Vaginal infections like bacterial vaginosis (BV) can be diagnosed and treated by a doctor. However, if you are unable to see a healthcare professional, you can use an at-home BV test. These over-the-counter testing kits can measure the pH levels in t…
The application of fourth-generation and fifth-generation rapid test kits is currently high. The adoption and innovation of digital HIV self-testing tools have increased in recent times, with website-based innovation becoming highly popular.…
Acrylic, also known as PMMA or plexiglass, is derived from English acrylic (acrylic plastic), and the chemical name is polymethyl methacrylate. It is an important plastic polymer material developed earlier, with good transparency, chemical stability,…
The Evolution History of Boron Nitride Boron nitride , a synthetic ceramic with beneficial physical and chemical properties. It first became commercially available from 1954 through the Carborundum Corporation. It was purchased by Saint-Gobain in 199…
According to the different molecular structure, it can be divided into four generations of polycarboxylate series superplasticizer, the first generation is acrylic acid copolymer, the second generation is propylene ether type, the third generation is…
The purity of carbonaceous raw materials such as petroleum coke and pitch coke is relatively high, and the ash content is usually less than 0.5%, while the purity of natural graphite treated by flotation is relatively low, and the carbon content is u…
Boron nitride is a crystal composed of nitrogen atoms and boron atoms. The chemical composition is 43.6% boron and 56.4% nitrogen with four different variants: hexagonal boron nitride (HBN), rhombic boron nitride (RBN), cubic boron nitride (…
What is slitting line? A slitting line works by cutting a large roll of metal into multiple, narrower rolls. It’s a continuous production process that is very precise. Slitting is a metal manufacturing process wherein a coil of material, such as alum…
The impact of new composite bearing research and development on the development trend and direction of 368a 362a bearingss…
Successfullydeveloped new composite bearing Recently,the China Machinery Industry Federation organized a review meeting in Harbinfor the Hualong No. 1 Nuclear Power Unit Reactor Coolant Pump ThrustBearing independently developed by Harbin Electric Po…
Researchand development of new bearings June17, 2021-Saint-Gobain has developed a new type of bearing that makes it easierfor automakers to provide end users with the comfort they need. This innovativetechnology perfectly combines the low friction pe…
Researchand development of new bearings June17, 2021-Saint-Gobain has developed a new type of bearing that makes it easierfor automakers to provide end users with the comfort they need. This innovativetechnology perfectly combines the low friction pe…