|
Auv0175
An autonomous underwater vehicle (AUV) is a robot that travels underwater without requiring continuous input from an operator. AUVs constitute part of a larger group of undersea systems known as unmanned underwater vehicles, a classification that includes non-autonomous remotely operated underwater vehicles (ROVs) – controlled and powered from the surface by an operator/pilot via an umbilical or using remote control. In military applications an AUV is more often referred to as an unmanned undersea vehicle (UUV). Underwater gliders are a subclass of AUVs. Homing torpedoes can also be considered as a subclass of AUVs. History The first AUV was developed at the Applied Physics Laboratory at the University of Washington as early as 1957 by Stan Murphy, Bob Francois and later on, Terry Ewart. The "Self-Propelled Underwater Research Vehicle", or SPURV, was used to study diffusion, acoustic transmission, and submarine wakes. Other early AUVs were developed at the Massach ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seaglider
The Seaglider™ is a deep-diving Autonomous Underwater Vehicle (AUV) designed for missions lasting many months and covering thousands of miles. In military applications the Seaglider is more commonly referred to as an Unmanned Underwater Vehicle (UUV). Seaglider was initially developed by the University of Washington (UW) in the 1990s by a team led by professor of oceanography Charles C. Eriksen, with funding primarily from the US Office of Naval Research. In June 2008, iRobot received an exclusive five-year license to produce the Seaglider for customers outside the University of Washington. In May 2013 Kongsberg Underwater Technology, Inc. (part of Kongsberg Maritime) announced that they had completed negotiations with the University of Washington's Center for Commercialization to obtain the sole rights to produce, market and continue the development of Seaglider technology. The Seaglider license was in Kongsberg's subsidiary Hydroid, Inc., which was sold to Huntington Ingalls ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MK18 Mod 2 Kingfish Underwater Unmanned Vehicle
Mark XVIII or Mark 18 often refers to the 18th version of a product, frequently military hardware. "Mark", meaning "model" or "variant", can be abbreviated "Mk." Mark XVIII or Mark 18 may refer to: Technology * De Havilland Mosquito NF Mk XVIII; a Royal Air Force night fighter radar modification * De Havilland Mosquito FB Mk XVIII, also called ''Tsetse''; RAF ground-attack aircraft carrying a QF 6-pounder (57 mm) anti-tank gun * Supermarine Spitfire Mk 18; a further development of the Mk XIV, arriving too late to serve in World War II *Mark 18 torpedo, 1944 US Navy electric torpedo *Mark 18 nuclear bomb; 1953 American nuclear bomb *CQBR Mark 18 Mod 0; a modification of the M4 Carbine *Mk 18 Mod 0 grenade launcher The Mk 18 Mod 0 was a 40x46mm grenade launcher used by the United States Navy during the Vietnam War and also the last known hand crank operated firearm since the Gatling gun. It was replaced by the Mk 19 grenade launcher in service with the U ...; former U ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MK 18 MOD 2 Swordfish UUV
MK or mk may refer to: In arts, entertainment and media Fictional characters * Moon Knight, a Marvel Comics superhero * M.K., an ''Into the Badlands'' (TV series) character * Mary Katherine "M.K." Bomba, the protagonist in ''Epic'' (2013 film) Video games * '' Makai Kingdom: Chronicles of the Sacred Tome'', a tactical role-playing game * ''Mario Kart'', a series of racing video games developed and published by Nintendo featuring characters from the ''Mario'' franchise * ''Mortal Kombat'', a series of fighting video games developed and published by Midway Games, and later Warner Bros. Other media * MK (channel), a defunct, South African, Afrikaans-language music television channel * Moskovskij Komsomolets, a Russian newspaper In business and finance * Markup (business), a term for the difference between the cost of a good or service and its selling price * Mark (designation), a designation used to identify versions of a product or item, e.g. Mk. II * Finnish markka (symbol: M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Malaysia Airlines Flight 370
Malaysia Airlines Flight 370 (MH370/MAS370) was an international passenger flight operated by Malaysia Airlines that disappeared from radar on 8 March 2014, while flying from Kuala Lumpur International Airport in Malaysia to its planned destination, Beijing Capital International Airport in China. The cause of its disappearance has not been determined. It is widely regarded as the greatest mystery in aviation history, and remains the single deadliest case of aircraft disappearance. The crew of the Boeing 777-200ER, registered as 9M-MRO, last communicated with air traffic control (ATC) around 38 minutes after takeoff when the flight was over the South China Sea. The aircraft was lost from ATC's secondary surveillance radar screens minutes later but was tracked by the Malaysian military's primary radar system for another hour, deviating westward from its planned flight path, crossing the Malay Peninsula and Andaman Sea. It left radar range northwest of Penang Island ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bluefin-21
The Bluefin-21 is an autonomous underwater vehicle (AUV) developed by Bluefin Robotics for defence, commercial or scientific use. It found its most famous use in April 2014 in the search for the wreckage of the missing Malaysia Airlines Flight 370. Design The Bluefin-21 is torpedo shaped and has interchangeable payload and battery components. This allows for the rapid deployment of the robot in time-bound missions. It has a modular design that can be adapted to carry a variety of sensors and payloads at one time, making it suitable for diverse deep-sea missions including offshore survey, marine salvage, marine salvage detection, marine archaeology, marine archeology survey, oceanography, mine countermeasures, and the detection of unexploded ordnance. It is said to take two hours to descend to the bottom of the ocean and a further two hours to surface, with the ability to search for sixteen hours. Bluefin-21 is powered by nine lithium-polymer batteries, each rated at . This allow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Air France Flight 447
Air France Flight 447 was a scheduled international passenger flight from Rio de Janeiro/Galeão International Airport, Rio de Janeiro, Brazil, to Charles de Gaulle Airport, Paris, France. On 1 June 2009, inconsistent airspeed indications and miscommunication led to the pilots inadvertently Stall (fluid dynamics), stalling the Airbus A330. They failed to recover the plane from the stall, and the plane crashed into the mid-Atlantic Ocean at 02:14 Coordinated Universal Time, UTC, killing all 228 passengers and crew on board. The Brazilian Navy recovered the first major wreckage and two bodies from the sea within five days of the accident, but the investigation by France's Bureau of Enquiry and Analysis for Civil Aviation Safety (BEA) was initially hampered because the aircraft's flight recorders were not recovered from the ocean floor until May 2011, nearly two years after the accident. The BEA's final report, released at a press conference on 5 July 2012, concluded that the aircr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DPDT
In electrical engineering, a switch is an electrical component that can disconnect or connect the conducting path in an electrical circuit, interrupting the electric current or diverting it from one conductor to another. The most common type of switch is an electromechanical device consisting of one or more sets of movable electrical contacts connected to external circuits. When a pair of contacts is touching current can pass between them, while when the contacts are separated no current can flow. Switches are made in many different configurations; they may have multiple sets of contacts controlled by the same knob or actuator, and the contacts may operate simultaneously, sequentially, or alternately. A switch may be operated manually, for example, a light switch or a keyboard button, or may function as a sensing element to sense the position of a machine part, liquid level, pressure, or temperature, such as a thermostat. Many specialized forms exist, such as the toggle switch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Syringe
A syringe is a simple reciprocating pump consisting of a plunger (though in modern syringes, it is actually a piston) that fits tightly within a cylindrical tube called a barrel. The plunger can be linearly pulled and pushed along the inside of the tube, allowing the syringe to take in and expel liquid or gas through a discharge orifice at the front (open) end of the tube. The open end of the syringe may be fitted with a hypodermic needle, a nozzle or tubing to direct the flow into and out of the barrel. Syringes are frequently used in clinical medicine to administer injections, infuse intravenous therapy into the bloodstream, apply compounds such as glue or lubricant, and draw/measure liquids. There are also prefilled syringes (disposable syringes marketed with liquid inside). The word "syringe" is derived from the Greek σῦριγξ ('' syrinx'', meaning "Pan flute", "tube"). Medical syringes Medical syringes include disposable and safety syringes, injectio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polyvinyl Chloride
Polyvinyl chloride (alternatively: poly(vinyl chloride), colloquial: vinyl or polyvinyl; abbreviated: PVC) is the world's third-most widely produced synthetic polymer of plastic (after polyethylene and polypropylene). About 40 million tons of PVC are produced each year. PVC comes in rigid (sometimes abbreviated as RPVC) and flexible forms. Rigid PVC is used in construction for pipes, doors and windows. It is also used in making plastic bottles, packaging, and bank or membership cards. Adding plasticizers makes PVC softer and more flexible. It is used in plumbing, electrical cable insulation, flooring, signage, phonograph records, inflatable products, and in rubber substitutes. With cotton or linen, it is used in the production of canvas. Polyvinyl chloride is a white, brittle solid. It is soluble in ketones, chlorinated solvents, dimethylformamide, THF and DMAc. Discovery PVC was synthesized in 1872 by German chemist Eugen Baumann after extended investigation and experimenta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bile Salts
Bile acids are steroid acids found predominantly in the bile of mammals and other vertebrates. Diverse bile acids are synthesized in the liver in peroxisomes. Bile acids are conjugated with taurine or glycine residues to give anions called bile salts. Primary bile acids are those synthesized by the liver. Secondary bile acids result from bacterial actions in the colon (anatomy), colon. In humans, taurocholic acid and glycocholic acid (derivatives of cholic acid) and taurochenodeoxycholic acid and glycochenodeoxycholic acid (derivatives of chenodeoxycholic acid) are the major bile salts. The salts of their 7-alpha-dehydroxylated derivatives, deoxycholic acid and lithocholic acid, are also found, with derivatives of cholic, chenodeoxycholic and deoxycholic acids accounting for over 90% of human biliary bile acids. Description Bile acids comprise about 80% of the organic compounds in bile (others are phospholipids and cholesterol). An increased secretion of bile acids produces an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
