Active Denial System — Humvee with ADS mounted The Active Denial System (ADS) is a non lethal, directed energy weapon developed by the U.S. military.[1] It is a strong millimeter wave transmitter primarily used for crowd control (the goodbye effect [ … Wikipedia
active — actively, adv. activeness, n. /ak tiv/, adj. 1. engaged in action; characterized by energetic work, participation, etc.; busy: an active life. 2. being in a state of existence, progress, or motion: active hostilities. 3. involving physical effort … Universalium
Active Solar Heating Systems — A solar water or space heating system that use pumps or fans to circulate the heat transfer fluid from the solar collectors to a storage tank subsystem … Energy terms
active solar heater — A solar water or space heating system that moves heated air or water using pumps or fans. Solar Electric Glossary … Energy terms
Active solar energy system — A system designed to convert solar radiation into usable energy for space, water heating, or other uses. It requires a mechanical device, usually a pump or fan, to collect the sun s energy. California Energy Comission. Dictionary of Energy… … Energy terms
Water heating — is a thermodynamic process using an energy source to heat water above its initial temperature. Typical domestic uses of hot water are for cooking, cleaning, bathing, and space heating. In industry, both hot water and water heated to steam have… … Wikipedia
solar heating — Use of solar radiation to heat water or air in buildings. There are two types: passive and active. Passive heating relies on architectural design; the building s siting, orientation, layout, materials, and construction are utilized to maximize… … Universalium
Solar heating — is the usage of solar energy to provide process, space or water heating. See also Solar thermal energy. The heating of water is covered in solar hot water. Solar heating design is divided into two groups: * Active solar heating uses pumps which… … Wikipedia
Inerting system — An inerting system is a device that attempts to increase the safety of a fuel tank, ball mill, or other sealed or closed in tank that contains highly flammable material, by pumping nitrogen, steam, carbon dioxide, or some other inert gas or vapor … Wikipedia
High Frequency Active Auroral Research Program — HAARP is often confused with Project HARP, the High Altitude Research Project (a joint project of The Pentagon and the Canadian Department of National Defence).The High Frequency Active Auroral Research Program (HAARP) is an investigation project … Wikipedia
Central solar heating — is the provision of central heating and hot water from solar energy by a system in which the water is heated centrally by arrays of solar thermal collectors (central solar heating plants CSHPs) and distributed through district heating pipe… … Wikipedia