heating by the resistance method

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• Resistance welding — refers to a group of welding processes that produce coalescence of faying surfaces where heat to form the weld is generated by the resistance of the welding current through the workpieces. Some factors influencing heat or welding temperatures are …   Wikipedia

• Resistance thermometer — Resistance thermometers, also called resistance temperature detectors (RTDs), are temperature sensors that exploit the predictable change in electrical resistance of some materials with changing temperature. As they are almost invariably made of… …   Wikipedia

• heating — I Process of raising the temperature of an enclosed space. Heat can be delivered by convection, radiation, and thermal conduction. With the exception of the ancient Romans, who developed a form of central heating, most cultures relied on direct… …   Universalium

• The Darkness Series — is a series of six fantasy novels by Harry Turtledove. Though a fantasy the general history, geography, and combatants are analogs of World War II, or the Derlavai War in this universe.[1] Many of the characters are also the equivalents of… …   Wikipedia

• Van der Pauw method — The van der Pauw Method is a commonly used technique to measure the sheet resistance of a material. The Van der Pauw method is often used to measure the Hall effect, which characterises a sample of semiconductor material and can be successfully… …   Wikipedia

• Contact resistance — The term contact resistance refers to the contribution to the total resistance of a material which comes from the electrical leads and connections as opposed to the intrinsic resistance, which is an inherent property, independent of the… …   Wikipedia

• History of the Caribbean — The history of the Caribbean reveals the significant role the region played in the colonial struggles of the European powers since the fifteenth century. In the twentieth century the Caribbean was again important during World War II, in the… …   Wikipedia

• 1966 Flood of the River Arno in Florence — The Arno River flood of November 4, 1966 killed many people and damaged or destroyed millions of masterpieces of art and rare books in Florence. It is considered the worst flood in the city s history since 1557. With the combined effort of… …   Wikipedia

• Central heating — unit A central heating system provides warmth to the whole interior of a building (or portion of a building) from one point to multiple rooms. When combined with other systems in order to control the building climate, the whole system may be a… …   Wikipedia

• Electric resistance welding — (ERW) refers to a group of welding processes such as spot and seam welding that produce coalescence of faying surfaces where heat to form the weld is generated by the electical reistance of material vs the time and the force used to hold the… …   Wikipedia

• Trace heating — Electric Trace Heating, also known as Electric Heat Tracing and Electric Surface Heating, is a system used to maintain or raise the temperature of pipes and vessels. Trace heating takes the form of a electrical like heating element run in… …   Wikipedia