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Sharp Corporation (シャープ株式会社, Shāpu Kabushiki-gaisha) is a Japanese electronics company. [4] [5] It is headquartered in Sakai, Osaka, and was founded by Tokuji Hayakawa in 1912 in Honjo, Tokyo, and established as the Hayakawa Metal Works Institute in Abeno-ku, Osaka, in 1924. [6]
Convection is caused by yeast releasing CO2. In fluid dynamics, a convection cell is the phenomenon that occurs when density differences exist within a body of liquid or gas. These density differences result in rising and/or falling convection currents, which are the key characteristics of a convection cell. When a volume of fluid is heated, it ...
Convection is often categorised or described by the main effect causing the convective flow; for example, thermal convection. Convection cannot take place in most solids because neither bulk current flows nor significant diffusion of matter can take place. Granular convection is a similar phenomenon in granular material instead of fluids.
A convection heater, also known as a convector heater, is a type of heater that utilizes convection currents [1] to heat and circulate air. These currents move through the appliance and across its heating element, [ 2 ] using thermal conduction [ 3 ] to warm the air and decrease its density relative to colder air, causing it to rise.
In 1988, a Sharp research team led by engineer T. Nagayasu demonstrated a 14-inch (36 cm) full-color LCD display, [34] [41] which convinced the electronics industry that LCD would eventually replace the CRT as the standard television display technology. [34] The first wall-mountable TV was introduced by Sharp Corporation in 1992. [42]
Some PTC heating elements are designed to have a sharp change in resistance at a particular temperature. These elements are called self-regulating because they tend to maintain that temperature even if the applied voltage [1] or heat load [2] changes. Below that temperature, the element produces a large amount of heating power, which tends to ...
Marklund convection, named after Swedish physicist Göran Marklund, is a convection process that takes place in filamentary currents of plasma.It occurs within a plasma with an associated electric field, that causes convection of ions and electrons inward towards a central twisting filamentary axis.
Diagram of a vacuum flask Gustav Robert Paalen, Double Walled Vessel. Patent 27 June 1908, published 13 July 1909. The vacuum flask was designed and invented by Scottish scientist James Dewar in 1892 as a result of his research in the field of cryogenics and is sometimes called a Dewar flask in his honour.
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