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TMA Mine
TMA may refer to: Science * Tense–Modality–Aspect or ''tense–aspect–mood'', grammatical system * Tetramethylammonium ion or its salts * Thermomechanical analysis * Third man argument, a philosophical criticism of Plato's theory of Forms * Thrombotic microangiopathy * Tissue microarray, device for analysing many histological tissue samples * Transcription mediated amplification * Trimethylamine, (CH3)3N, a simple amine * Trimethylaluminium, (CH3)3Al * Psychedelic or hallucinogenic drugs that are isomeric-substituted amphetamines: ** 3,4,5-trimethoxyamphetamine ( TMA) ** 2,4,5-trimethoxyamphetamine ( TMA-2) ** 2,3,4-trimethoxyamphetamine ( TMA-3) ** 2,3,5-trimethoxyamphetamine ( TMA-4) ** 2,3,6-trimethoxyamphetamine ( TMA-5) ** 2,4,6-trimethoxyamphetamine ( TMA-6) * '' Tristeza y muerte de agave'', a collective term for diseases of blue agave Transportation Aviation * Terminal Manoeuvring Area / Terminal Control Area - aviation term for a controlled high-volume airspac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tense–aspect–mood
Tense–aspect–mood (commonly abbreviated ) or tense–modality–aspect (abbreviated as ) is a group of grammatical categories that are important to understanding spoken or written content, and which are marked in different ways by different languages. TAM covers the expression of three major components of words which lead to or assist in the correct understanding of the speaker's meaning: * Tense—the position of the state or action in time, that is, whether it is in the past, present or future. * Aspect—the extension of the state or action in time, that is, whether it is unitary (perfective), continuous or repeated (imperfective). * Mood or Modality—the reality of the state or action, that is, whether it is actual (realis), a possibility or a necessity (irrealis). For example, in English the word "walk" would be used in different ways for the different combinations of TAM: * Tense: He walked (past), He walks (present), He will walk (future). * Aspect: He walked (uni ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Soyuz TMA-1
Soyuz TMA-1, also catalogued as Soyuz TM-35, was a 2002 Soyuz spacecraft, Soyuz mission to the International Space Station (ISS) launched by a Soyuz FG launch vehicle with a Russian-Belgian cosmonaut crew blasted off from the Baikonur Cosmodrome in Kazakhstan. This was the fifth Russian Soyuz spacecraft to fly to the ISS. It was also the first flight of the Soyuz-TMA, TMA-class Soyuz spacecraft. Soyuz TM-34 was the last of the prior Soyuz-TM spacecraft to be launched. Crew Mission parameters *Mass: 7,220 kg (15,910 lb), gross *Perigee: 193 km *Apogee: 235 km *Inclination: 51.6° *Period: 88.7 minutes Docking with ISS *Docked to ISS: November 1, 2002, 05:01 UTC (to Pirs (ISS module), Pirs module) *Undocked from ISS: May 3, 2003, 22:43 UTC (from Pirs (ISS module), Pirs module) Specifications :''Section ref: Astro'' [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tower Mounted Amplifier
A Tower Mounted Amplifier (TMA), or Mast Head Amplifier (MHA), is a low-noise amplifier (LNA) mounted as close as practical to the antenna in mobile masts or base transceiver stations. A TMA reduces the base transceiver station noise figure (NF) and therefore improves its overall sensitivity; in other words the mobile mast is able to receive weaker signals. The power to feed the amplifier (in the top of the mast) is usually a DC component on the same coaxial cable that feeds the antenna, otherwise an extra power cable has to be run to the TMA/MHA to supply it with power. Benefits in mobile communications In two way communications systems, there are occasions when one way, one link, is weaker than the other, normally referenced as unbalanced links. This can be fixed by making the transmitter on that link stronger or the receiver more sensitive to weaker signals. TMAs are used in mobile networks to improve the sensitivity of the uplink in mobile phone masts. Since the transmitte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
TMA-4 Mine
The TMA-4 is a circular plastic cased Yugoslavian minimum metal anti-tank blast mine. It is a modernized version of the TMA-3. The mine is basically a cast block of TNT with three fuze wells cut into it, encased in plastic. Three black plastic UTMA-4 fuzes are installed into the top surface of the mine. A thin rope carry handle is also provided. The small pressure plate area of the fuzes make the mine resistant to overpressure from explosive demining techniques. Additionally the low metal content of the mine make it very difficult to detect. Although no secondary fuze well is provided, it is possible that the mine could be fitted with improvised anti-handling devices. The mine is found in Albania, Angola, Bosnia, Chad, Croatia, Kosovo, Lebanon, Namibia, Sudan, and Western Sahara. Specifications * Diameter: 284 mm * Height (with fuse): 110 mm * Weight: 6 kg * Explosive content: 5.5 kg of TNT Trinitrotoluene (), more commonly known as TNT, more specifically 2,4,6-trinitrotolue ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
TMA-3 Mine
The TMA-3 is a circular Yugoslavian minimum metal anti-tank blast mine. It is very similar in appearance to the TMA-4. The mine consists of a cast circular block of explosive cased in resin reinforced fabric. The top of the mine has three fuze wells which each take a UTMA-3 fuze, and a fourth secondary fuze well is provided in the base of the mine to fit an anti-handling device. The fuze wells may also accept a number of other fuzes, including the UPROM-1, and other fuzes, potentially allowing tripwire activation. The small pressure plate area of the UTMA-3 fuzes gives the mine good resistance to minefield clearance techniques which used blast overpressure techniques i.e. explosive charges. The mine is found in Albania, Angola, Bosnia, Croatia, Kosovo, Lebanon, and Namibia. Specifications * Diameter: 265 mm * Height (with fuze): 110 mm * Weight: 7 kg * Explosive content: 6.5 kg of TNT Trinitrotoluene (), more commonly known as TNT, more specifically 2,4,6-trinitrotoluene, an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
TMA-2 Mine
The TMA-2 is a rectangular plastic cased Yugoslavian minimum metal anti-tank blast mine. It is very similar in appearance and size to the PT-56, which it replaced. The mine consists of two sections, an upper ribbed pressure plate with two large circular fuze caps, and a lower base section containing the main charge and two primary fuze wells containing UANU-1 fuzes. A secondary fuze well is provided in the base of the mine for an anti-handling device. Sufficient pressure causes the top pressure plate of the mine to collapse downwards, forcing one or both of the fuze's plungers into a friction sensitive explosive, triggering the main charge. It is found in Angola, Bosnia, Croatia, Kosovo, and Namibia Namibia (, ), officially the Republic of Namibia, is a country in Southern Africa. Its western border is the Atlantic Ocean. It shares land borders with Zambia and Angola to the north, Botswana to the east and South Africa to the south and ea .... Specifications * Length: 260 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
TMA-1 Mine
The TMA-1 and TMA-1A are circular, plastic cased Yugoslavian minimum metal anti-tank blast mine. The mine consists of an upper plastic pressure plate, and the lower body containing the main charge. The pressure plate has eight triangular raised sectors, and a central fuze cap. The pressure plate is held in place by four plastic pins, which when sufficient pressure is applied, shear allowing the pressure plate to collapse onto the mine body, triggering the UANU-1 fuze. A secondary fuze well is provided in the base of the mine, allowing the use of anti-handling devices. The mine is found in Bosnia, Croatia and Kosovo. Specifications * Diameter: 315 mm * Height: 100 mm * Weight: 10 kg * Explosive content: 5.4 kg of TNT Trinitrotoluene (), more commonly known as TNT, more specifically 2,4,6-trinitrotoluene, and by its preferred IUPAC name 2-methyl-1,3,5-trinitrobenzene, is a chemical compound with the formula C6H2(NO2)3CH3. TNT is occasionally used as a reagen ... * Operating pres ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tanzania Military Academy
The Tanzania Military Academy (TMA) is a military training academy located in Monduli in northern Tanzania. It is regarded as a prestigious training institution and has trained officers from a number of countries across the region. History The academy was constructed with assistance from the Government of China and was formally inaugurated by President Julius Nyerere in 1976. At inception, it was known as the National Leadership Academy ( sw, Chuo cha Taifa cha Uongozi) before being renamed its present name in 1992 after the country's transition to a multiparty system. Over the years, it has trained officers from Kenya, Lesotho, Seychelles, South Africa, Zambia and Uganda. Notable alumni * Jakaya Kikwete, 1976 * Katumba Wamala * Elly Tumwine * Joseph Semwanga * Makongoro Nyerere * Yusuf Makamba * Venance Salvatory Mabeyo * John Mutwa * Sam Magara See also * Tanzania People's Defence Force The Tanzania People’s Defence Force (TPDF) ( sw, Jeshi la Ulinzi la Wananchi w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Target Motion Analysis
Target Motion Analysis (TMA) is a process to determine the position of a target using passive sensor information. Sensors like passive ''RADAR'' and ''SONAR Sonar (sound navigation and ranging or sonic navigation and ranging) is a technique that uses sound propagation (usually underwater, as in submarine navigation) to navigate, measure distances (ranging), communicate with or detect objects on o ...'' provide directional and occasionally frequency information. TMA is done by marking from which direction the sound comes at different times, and comparing the motion with that of the operator's own ship. Changes in relative motion are analyzed using standard geometrical techniques along with some assumptions about limiting cases. There are two different ways to execute TMA: manual and automated. Manual TMA Manual TMA methods involve computation executed by humans instead of computers. There exist several manual TMA methods such as: Ekelund Ranging, 1934 Rule, Spears Wheel etc. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Soyuz TMA-6
Soyuz TMA-6 was a human spaceflight to the International Space Station (ISS). It carried three crew members of Expedition 11 to the International Space Station. It was the 26th crewed flight to the ISS. It was launched by a Soyuz FG and returned to Earth after performing operations at the ISS. Crew Docking with ISS *Docked to ISS: April 17, 2005, 02:20 UTC (to Pirs module) *Undocked from ISS: July 19, 2005, 10:38 UTC (from Pirs module) *Docked to ISS: July 19, 2005, 11:08 UTC (to nadir port of Zarya) *Undocked from ISS: October 10, 2005, 21:49 UTC (from nadir port of Zarya) Mission highlights Soyuz TMA-6 is a Soyuz TMA spacecraft which was launched on April 15, 2005 by a Soyuz-FG rocket from Baikonur Cosmodrome. During the return flight from the ISS, instruments in the descent module of the Soyuz spacecraft indicated a cabin-pressure-leak that is still under investigationThe Expedition 11 crew, Sergei Krikalev-Cdr Russia, John Phillips-U.S.A. replaced the Expedition 10 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Soyuz TMA-5
Soyuz TMA-5 was a Soyuz mission to the International Space Station (ISS) launched by a Soyuz-FG launch vehicle. Crew TMA 5 ISS 10 Crew patches were designed by Seán O'Mara for USSR Airspace. Docking with ISS *Docked to ISS: October 16, 2004, 04:16 UTC (to Pirs module) *Undocked from ISS: November 29, 2004, 09:29 UTC (from Pirs module) *Docked to ISS: November 29, 2004, 09:53 UTC (to nadir port of Zarya) *Undocked from ISS: April 24, 2005, 18:44 UTC (from nadir port of Zarya) Mission highlights 25th crewed flight to ISS. Soyuz TMA-5 is a Soyuz spacecraft that was launched on October 14, 2004 by a Soyuz-FG rocket from Baikonur Cosmodrome. The Expedition 10 crew, Leroy Chiao of the US and Salizhan Sharipov of Russia replaced the Expedition 9 crew, Gennady Padalka - Cdr. Russia and Edward Fincke U.S.A. The launch of Expedition 10 was delayed beyond its scheduled October 9, 2004 launch date. During preflight testing, an explosive bolt was accidentally activated on the So ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
