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Definition[edit] The Hounsfield unit (HU) scale is a linear transformation of the original linear attenuation coefficient measurement into one in which the radiodensity of distilled water at standard pressure and temperature ( STP) is defined as 0 Hounsfield units (HU), while the radiodensity of air at STP is defined as −1000 HU. In a voxel with average linear attenuation coefficient , the ...
Weather stations typically have these following instruments: Thermometer for measuring air and sea surface temperature. Barometer for measuring atmospheric pressure. Hygrometer for measuring humidity. Anemometer for measuring wind speed. Pyranometer for measuring solar radiation. Rain gauge for measuring liquid precipitation over a set period ...
An operating temperature is the allowable temperature range of the local ambient environment at which an electrical or mechanical device operates. The device will operate effectively within a specified temperature range which varies based on the device function and application context, and ranges from the minimum operating temperature to the ...
Electrical equipment in hazardous areas. This inspection lamp is constructed so that it cannot set off an explosion when surrounded by specified flammable gases or dust. In electrical and safety engineering, hazardous locations (HazLoc, pronounced haz·lōk) are places where fire or explosion hazards may exist.
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A quirk with one of the most popular tech ETFs has seen the product lag this year because it couldn't own enough Nvidia. On Friday, that looks set to change.
Amazon founder Jeff Bezos disclosed in a filing that he is selling 25 million shares of the e-commerce giant, worth around $5 billion, after the company's stock hit a record high.
These metals tarnish slowly in air at room temperature and react slowly with cold water to form hydroxides, liberating hydrogen. ... are high-technology equipment ...