THM Wetzlar
THM, Thm, thm or ThM may refer to: *Turbo-Hydramatic, GM vehicle transmission *Ton of heavy metal in a nuclear power plant *Ton of hot metal in the steel industry *Trihalomethanes in chemistry *Therm, a unit of heat energy * Technische Hochschule Mittelhessen—University of Applied Sciences *Master of Theology Master of Theology ( la, Theologiae Magister, abbreviated MTh, ThM, or MTheol) is a post-graduate degree offered by universities, divinity schools, and seminaries. It can serve as a transition degree for entrance into a PhD program or as a stand ...

Turbo-Hydramatic
Turbo-Hydramatic or Turbo Hydra-Matic is the registered tradename for a family of automatic transmissions developed and produced by General Motors. These transmissions mate a three-element turbine torque converter to a Simpson planetary geartrain, providing three forward speeds plus reverse. The Turbo-Hydramatic or Turbo Hydra-Matic (THM) series was developed to replace both the original Hydra-Matic models and the Buick Dynaflow. In its original incarnation as the Turbo-Hydramatic 400, it was first used in the 1964 model year in Cadillacs. The Buick version, which followed shortly thereafter, was known as the Super-Turbine 400. By 1973, THM units had replaced all of GM's other automatic transmissions including Chevrolet's Powerglide, Buick's Super Turbine 300, and Oldsmobile's Jetaway. Starting in the early 1980s, the Turbo-Hydramatic was gradually supplanted by four-speed automatics, some of which continue to use the "Hydramatic" trade name. Although the Turbo Hydra-Matic n ...
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Trihalomethane
In chemistry, trihalomethanes (THMs) are chemical compounds in which three of the four hydrogen atoms of methane () are replaced by halogen atoms. Many trihalomethanes find uses in industry as solvents or refrigerants. THMs are also environmental pollutants, and many are considered carcinogenic. Trihalomethanes with all the same halogen atoms are called haloforms. Table of common trihalomethanes Industrial uses Only chloroform has significant applications of the haloforms. In the predominant application, chloroform is required for the production of tetrafluoroethylene, precursor to teflon. Chloroform is fluorinated by reaction with hydrogen fluoride to produce chlorodifluoromethane (R-22). Pyrolysis of chlorodifluoromethane (at 550-750 °C) yields TFE, with difluorocarbene as an intermediate. :CHCl3 + 2 HF -> CHClF2 + 2 HCl :2 CHClF2 -> C2F4 + 2 HCl Refrigerants and solvents Trifluoromethane and chlorodifluoromethane are both used as refrigerants. Trihalomethanes re ...
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Therm
The therm (symbol, thm) is a non- SI unit of heat energy equal to 100,000 British thermal units (BTU), and approximately megajoules, kilowatt-hours, kilocalories and thermies. One therm is the energy content of approximately of natural gas at standard temperature and pressure. However, the BTU is not standardised worldwide, with slightly different values in the EU, UK, and USA, meaning that the energy content of the therm also varies by territory. Natural gas meters measure volume and not energy content, and given that the energy density varies with the mix of hydrocarbons in the natural gas, a 'therm factor' is used by natural gas companies to convert the volume of gas used to its heat equivalent, usually being expressed in units of 'therms per CCF' (CCF is an abbreviation for 100 cubic feet). Higher than average concentration of ethane, propane or butane will increase the therm factor and the inclusion of non - flammable impurities, such as carbon dioxide or nitrogen will red ...
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Technische Hochschule Mittelhessen—University Of Applied Sciences
The Technische Hochschule Mittelhessen University of Applied Sciences (German: ''Technische Hochschule Mittelhessen'', or THM) is a German Fachhochschule for bachelor's and master's studies in the cities of Giessen, Friedberg, and Wetzlar. History Giessen The University of Applied Sciences of Central Hesse (Technische Hochschule Mittelhessen (THM)) traces back to Giessen. On the 14 January 1838 by the National Trade Association Darmstadt, Giessen "school for technical drawing" was founded ("Schule für technisches Zeichnen"). This led to the founding of this school were widespread complaints that artisans could not read and understand the plans of the architects were fostered. Just four weeks into Darmstadt on December 1837 the trade school was founded, the predecessor of today's TU Darmstadt (Technische Universität Darmstadt). Thus, the THM is only a month younger than the TU Darmstadt and thus the second oldest higher technical educational institution in the German state of He ...
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