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Water Surface Searches
Water surface searches are procedures carried out on or over the surface of a body of water with the purpose of finding lost vessels, persons, or floating objects, which may use one or more of a variety of search patterns depending on the target of the search, as the direction and rate of Drift (nautical), drift vary depending on the characteristics of the target and the water and weather conditions at the time. The effectiveness of a search pattern is also influenced by the characteristics of the search platform. One or more search platforms may be used. Factors influencing choice of search pattern and search asset: *Drift speed and direction, which is affected by **Type of object **Windage and hydrodynamic drag of the target *Visibility of object **Size and colour of object **Height above the water of the observers **Illumination and atmospheric conditions **Water surface conditions *Confidence of last known position and elapsed time *Geographical factors Datum and last known po ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Search Pattern
Searching may refer to: Music * "Searchin', Searchin", a 1957 song originally performed by The Coasters * Searching (China Black song), "Searching" (China Black song), a 1991 song by China Black * Searchin' (CeCe Peniston song), "Searchin" (CeCe Peniston song), a 1993 song by CeCe Peniston * "Searchin' (I Gotta Find a Man)", a 1983 dance song by Hazell Dean * Searching (INXS song), "Searching" (INXS song), a 1997 song by INXS * Searching (Pete Rock & CL Smooth song), "Searching" (Pete Rock & CL Smooth song), a 1995 song from the Pete Rock & CL Smooth album ''The Main Ingredient'' * ''Searching'', a 2013 album by Jay Diggins * "Searching", a 1980 single by Change (band), Change * "Searching", a 2004 song by Joe Satriani from his album ''Is There Love in Space?'' * "Searchin", a 1981 song on the Blackfoot album Marauder (Blackfoot album), ''Marauder'' * "Searching", a 1976 song by Lynyrd Skynyrd from the album ''Gimme Back My Bullets'' * "Searching", a 1976 song by Roy Ayers from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parallel Track Search - 2 Ships
Parallel may refer to: Mathematics * Parallel (geometry), two lines in the Euclidean plane which never intersect * Parallel (operator), mathematical operation named after the composition of electrical resistance in parallel circuits Science and engineering * Parallel (latitude), an imaginary east–west line circling a globe * Parallel of declination, used in astronomy * Parallel, a geometric term of location meaning "in the same direction" * Parallel electrical circuits Computing * Parallel (software), a UNIX utility for running programs in parallel Language * Parallelism (grammar), a balance of two or more similar words, phrases, or clauses * Parallelism (rhetoric) Entertainment * ''Parallel'' (manga) * ''Parallel'' (2018 film), a Canadian science fiction thriller film * ''Parallel'' (2024 film) an American science fiction thriller film * ''Parallel'' (video), a compilation of music videos by R.E.M. * ''Parallel'' (The Black Dog album), 1995 * ''Parallel'' (Fou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radar Reflector
A corner reflector is a retroreflector consisting of three mutually perpendicular, intersecting flat reflective surfaces. It reflects waves incident from any direction directly towards the source, but translated. The three intersecting surfaces often are triangles (forming a tetrahedron) or may have square shapes. Radar corner reflectors made of metal are used to reflect radio waves from radar sets. Optical corner reflectors, called corner cubes or cube corners, made of three-sided glass prisms, are used in surveying and laser ranging. Principle The incoming ray is reflected three times, once by each surface, which results in a reversal of direction. To see this, the three corresponding normal vectors of the corner's perpendicular sides can be considered to form a basis (a rectangular coordinate system) (''x'', ''y'', ''z'') in which to represent the direction of an arbitrary incoming ray, . When the ray reflects from the first side, say ''x'', the ray's ''x'' component, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radar
Radar is a system that uses radio waves to determine the distance ('' ranging''), direction ( azimuth and elevation angles), and radial velocity of objects relative to the site. It is a radiodetermination method used to detect and track aircraft, ships, spacecraft, guided missiles, motor vehicles, map weather formations, and terrain. The term ''RADAR'' was coined in 1940 by the United States Navy as an acronym for "radio detection and ranging". The term ''radar'' has since entered English and other languages as an anacronym, a common noun, losing all capitalization. A radar system consists of a transmitter producing electromagnetic waves in the radio or microwave domain, a transmitting antenna, a receiving antenna (often the same antenna is used for transmitting and receiving) and a receiver and processor to determine properties of the objects. Radio waves (pulsed or continuous) from the transmitter reflect off the objects and return to the receiver, giving ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thermal Imaging
Infrared thermography (IRT), thermal video or thermal imaging, is a process where a thermal camera captures and creates an image of an object by using infrared radiation emitted from the object in a process, which are examples of infrared imaging science. Thermographic cameras usually detect radiation in the long-infrared range of the electromagnetic spectrum (roughly 9,000–14,000 nanometers or 9–14 μm) and produce images of that radiation, called thermograms. Since infrared radiation is emitted by all objects with a temperature above absolute zero according to the black body radiation law, thermography makes it possible to see one's environment with or without visible illumination. The amount of radiation emitted by an object increases with temperature; therefore, thermography allows one to see variations in temperature. When viewed through a thermal imaging camera, warm objects stand out well against cooler backgrounds; humans and other warm-blooded animals becom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Night Vision Goggles
A night-vision device (NVD), also known as a night optical/observation device (NOD) or night-vision goggle (NVG), is an optoelectronic device that allows visualization of images in low levels of light, improving the user's night vision. The device enhances ambient visible light and converts near-infrared light into visible light which can then be seen by humans; this is known as I2 ( image intensification). By comparison, viewing of infrared thermal radiation is referred to as thermal imaging and operates in a different section of the infrared spectrum. A night vision device usually consists of an image intensifier tube, a protective housing, and an optional mounting system. Many NVDs also include a protective sacrificial lens, mounted over the front/ objective lens to prevent damage by environmental hazards, while some incorporate telescopic len ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Expanding Square Search
Water surface searches are procedures carried out on or over the surface of a body of water with the purpose of finding lost vessels, persons, or floating objects, which may use one or more of a variety of search patterns depending on the target of the search, as the direction and rate of drift vary depending on the characteristics of the target and the water and weather conditions at the time. The effectiveness of a search pattern is also influenced by the characteristics of the search platform. One or more search platforms may be used. Factors influencing choice of search pattern and search asset: *Drift speed and direction, which is affected by **Type of object **Windage and hydrodynamic drag of the target *Visibility of object **Size and colour of object **Height above the water of the observers **Illumination and atmospheric conditions **Water surface conditions *Confidence of last known position and elapsed time *Geographical factors Datum and last known position A search i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Expanding Box Search
Expansion may refer to: Arts, entertainment and media * ''L'Expansion'', a French monthly business magazine * ''Expansion'' (album), by American jazz pianist Dave Burrell, released in 2004 * ''Expansions'' (McCoy Tyner album), 1970 * ''Expansions'' (Lonnie Liston Smith album), 1975 * ''Expansión'' (Mexico), a Mexican news portal linked to CNN * Expansion (sculpture) (2004) Bronze sculpture illuminated from within * ''Expansión'' (Spanish newspaper), a Spanish economic daily newspaper published in Spain * Expansion pack in gaming, extra content for games, often simply "expansion" Science, technology, and mathematics * Expansion (geometry), stretching of geometric objects with flat sides * Expansion (model theory), in mathematical logic, a mutual converse of a reduct * Expansion card, in computing, a printed circuit board that can be inserted into an expansion slot * Expansion chamber, on a two-stroke engine, a tuned exhaust system that enhances power output * Expansion joint ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Barrier Search On River
A barrier or barricade is a physical structure which blocks or impedes something. Barrier may also refer to: Places * Barrier, Kentucky, a community in the United States * Barrier, Voerendaal, a place in the municipality of Voerendaal, Netherlands * Barrier Bay, an open bay in Antarctica * Barrier Canyon, the former name of Horseshoe Canyon (Utah) * Barrier Lake, Alberta, Canada * Barrier Mountain, the former name of Mount Baldy (Alberta) * Barrier Ranges, a mountain range in New South Wales, Australia * Division of Barrier, a former Australian Electoral Division in New South Wales * The Barrier, a common synonym for the city of Broken Hill, New South Wales :*''The Barrier Miner'', the city's newspaper :* Barrier Highway, in Australia, from SA to NSW via Broken Hill * The Barrier, a lava dam in British Columbia, Canada * The Barrier (Kenya), an active shield volcano in Kenya * The Barrier, an early name for the Ross Ice Shelf, Antarctica In arts and entertainment Film * '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Creeping Line Search Pattern
The Committee for the Re-election of the President (or the Committee to Re-elect the President, CRP, but often mocked by the acronym CREEP) was, officially, a fundraising organization of United States President Richard Nixon's 1972 re-election campaign during the Watergate scandal. In addition to fundraising, the organization also engaged in political sabotage against Nixon's opponents, the various Democratic politicians running in the election. History Planning began in late 1970 and an office opened in the spring of 1971. Besides its re-election activities, CRP employed money laundering and slush funds, and was involved in the Watergate scandal. The CRP used $500,000 in funds raised to re-elect President Nixon to pay legal expenses for the five Watergate burglars. This act helped turn the burglary into an explosive political scandal. The burglars, as well as G. Gordon Liddy, E. Howard Hunt, John N. Mitchell, and other Nixon administration figures (Watergate Seven), were ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sector Search Relative To Ground With Moving Datum 1
Sector may refer to: Places * Sector, West Virginia, U.S. Geometry * Circular sector, the portion of a disc enclosed by two radii and a circular arc * Hyperbolic sector, a region enclosed by two radii and a hyperbolic arc * Spherical sector, a portion of a sphere enclosed by a cone of radii from the center of the sphere Social and economic * Business sector, part of the economy which involves the trading and sale of products by companies * Economic sector, the manufacturing, finance and production of goods for consumers * Private sector, business activity created by private enterprise for profit * Public sector, delivers social services, infrastructure and institutions administered by government * Voluntary sector, a non-profit and voluntary part of an economy provided by organisations * The sector of the sector directive in government procurement in the European Union Computing * Cylinder-head-sector, an early method for giving addresses to blocks of data on a hard drive * Dis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drift (nautical)
Drift or Drifts may refer to: Geography * Drift or ford (crossing) of a river * Drift (navigation), difference between heading and course of a vessel * Drift, Kentucky, unincorporated community in the United States * In Cornwall, England: ** Drift, Cornwall, village ** Drift Reservoir, associated with the village Science, technology, and physics * Directional Recoil Identification from Tracks, a dark-matter experiment * Drift (video gaming), a typical game-controller malfunction * Drift pin, metalworking tool for localizing hammer blows and for aligning holes * Drift (geology), deposited material of glacial origin * drift (in mining), a roughly horizontal passage; an adit * Drift, linear term of a stochastic process * Drift (motorsport), the controlled sliding of a vehicle through a sharp turn, either via over-steering with sudden sharp braking, or counter-steering with a sudden "clutch kick" acceleration * Incremental changes: ** Drift (linguistics), a type of language cha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
