heat index — (HI or HX) a measure of the combined effect of heat and humidity on the human body. U.S. meteorologists compute the index from the temperature T (in °F) and the relative humidity H (as a fraction; that is, H = 0.65 if the relative humidity is… … Dictionary of units of measurement
heat unit — an alternate name, coined by Americans, for the British thermal unit (Btu). This is not the same as the Celsius heat unit (Chu) … Dictionary of units of measurement
Heat transfer — is a discipline of thermal engineering that concerns the exchange of thermal energy from one physical system to another. Heat transfer is classified into various mechanisms, such as heat conduction, convection, thermal radiation, and phase change … Wikipedia
Measurement and Signature Intelligence — Measurement and Signature Intelligence, or MASINT, refers to intelligence gathering activities that bring together disparate elements that do not fit within the definitions of the major disciplines mentioned above. As a means of collecting… … Wikipedia
Measurement and signature intelligence — (MASINT) is a branch of intelligence gathering activities. MASINT, may have aspects of intelligence analysis management, since certain aspects of MASINT, such as the analysis of electromagnetic radiation received by signals intelligence are more… … Wikipedia
Heat (disambiguation) — Heat, in physics, is energy which is spontaneously flowing from an object with a high temperature to an object with a lower temperature.Heat can also refer to:In physics: *Thermal energy, the sum of a body s latent and sensible forms of energy… … Wikipedia
Heat flux — or thermal flux is a flow of energy per unit of area per unit of time. In SI units, it is measured in [W·m 2] . It has both a direction and a magnitude so it is a vectorial quantity. To define the heat flux at a certain point in space, one takes… … Wikipedia
Heat flux sensor — A heat flux sensor is a commonly used name for a transducer generating a signal that is proportional to the local heat flux. This heat flux can have different origins; in principle convective , radiative as well as conductive heat can be measured … Wikipedia
Measurement microphone calibration — In order to take a scientific measurement with a microphone, its precise sensitivity must be known (in volts per Pascal). Since this may change over the lifetime of the device, it is necessary to regularly calibrate measurement microphones. This… … Wikipedia
heat — I (New American Roget s College Thesaurus) I n. high temperature (see heat); passion, rage, vehemence; rut, mating period. See sex, excitement. Ant., cold. II Quality of warmth Nouns 1. heat, caloric; warmth, ardor, fervor, fervency; incalescence … English dictionary for students