Polytetramethylene ether glycol (PTMEG), also known as polytetrahydrofuran, polytetramethylene ether glycol, tetrahydrofuran homopolyether, etc. Its English name is Polytetramethylene Ether Glycol, abbreviated as PTMEG. Its molecular formula is HO[CH2CH2CH2CH2O]nH, which is a homopolymer obtained by cationic ring-opening polymerization of tetrahydrofuran (THF) in the presence of a catalyst. It is a primary hydroxyl end linear polyether…
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A point-of-sale (POS) terminal is a hardware system for processing card payments at retail locations. Software to read magnetic strips of credit and debit cards is embedded in the hardware. Portable devices (i.e., not terminals anchored to a counter), either proprietary or third-party, as well as contactless capabilities for emerging forms of mobile payments, represent…
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Disposable Sterile Acupuncture Needles has its origin from China. It involves the insertions of thin needles into certain locations of the human body. These locations are generally termed as acupuncture points and form the main focus of the acupuncture treatment. The procedure may also involve the application of pressure, heat or laser light at the…
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A class-D amplifier or switching amplifier is an electronic amplifier in which the amplifying devices (transistors, usually MOSFETs) operate as electronic switches, and not as linear gain devices as in other amplifiers. They are rapidly switching back and forth between the supply rails, being fed by a modulator using pulse width, pulse density, or related…
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The Americas was the leading revenue contributor to the market and the region’s dominance is expected to continue during the next four years as well. Global Building Management System Market Professional Survey Report 2019 is a professional and in-depth study and available exclusively through Trusted Business Insights. Annual estimates and forecasts are provided for the…
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In the aerospace industry, the development of new materials with reduced weight improved application-specific performance, and the reduced cost has significant importance. Increasing demand for these characteristics is expected to have a positive impact on the global aerospace lightweight materials market. One-Piece design reduces the number of components in overall assemblies, which ultimately reduces the…
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Ceramic foam is a kind of tough foam made from ceramics. Manufacturing techniques include impregnating open-cell polymer foams internally with ceramic slurry and then firing in a kiln, leaving only ceramic material. The foams may consist of several ceramic materials such as aluminum oxide, a common high-temperature ceramic, and gets insulating powers from the many…
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The baobab tree is one of the largest and oldest trees in the world carbon dating indicates that these trees can live 3,000 years or more. In addition to providing food and shelter, the fruit, leaves, and bark of the mighty tree have been used medicinally for centuries in natural remedies for everything from fever…
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Anesthesia equipment is often used by medical professionals during surgical procedures to help prevent a patient from feeling pain and relax surrounding muscles. Oftentimes, anesthesia can make a patient drowsy or even unconscious, both of which are completely normal reactions to the medicine. During the procedure, an anesthesiologist will monitor the patients’ vitals to ensure…
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Electromagnetic clutches are the clutches function under the effect of electromagnetic force, control the joint and separation of the clutch based on the power on/off of the coil. It makes the torque transmission from the active side to the passive side with the function of electromagnetic energy, so as to complete the connection of mechanical…
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