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A loss-of-pressure-control accident (LOPA) is a mode of failure for a nuclear reactor that involves the pressure of the confined coolant falling below specification. [1] Most commercial types of nuclear reactor use a pressure vessel to maintain pressure in the reactor plant. This is necessary in a pressurized water reactor to prevent boiling in ...
Hot box. A hot box is the term used when an axle bearing overheats on a piece of railway rolling stock. [1] The term is derived from the journal-bearing trucks used before the mid-20th century. The axle bearings were housed in a box that used oil-soaked rags or cotton (collectively called "packing") to reduce the friction of the axle against ...
Boiler blowdown. Boiler blowdown is water intentionally wasted from a boiler to avoid concentration of impurities during continuing evaporation of steam. The water is blown out of the boiler with some force by steam pressure within the boiler. Bottom blowdown used with early boilers caused abrupt downward adjustment of boiler water level and ...
A flame ionization detector ( FID) is a scientific instrument that measures analytes in a gas stream. It is frequently used as a detector in gas chromatography. The measurement of ions per unit time makes this a mass sensitive instrument. [ 1] Standalone FIDs can also be used in applications such as landfill gas monitoring, fugitive emissions ...
Was Facebook down today? According to DownDetecto r.com, there have been 20,668 reports of Facebook issues reported at 12:11 p.m. ET. The number of outages is currently falling. The peak was ...
(Reuters) -Microsoft's LinkedIn said on Wednesday it was back up after a brief outage that had impacted thousands of users. At one point during the day there were more than 48,000 reports of ...
Valve Anti-Cheat ( VAC) is an anti-cheat tool developed by Valve as a component of the Steam platform, first released with Counter-Strike in 2002. When the software detects a cheat on a player's system, it will ban them in the future, possibly days or weeks after the original detection. [ 1] It may kick players from the game if it detects ...
April 3, 2024 at 3:49 PM. (Reuters) -Meta Platforms-owned WhatsApp was down for thousands of users on Wednesday, even as the smartphone messaging app resumed service for some people, according to ...