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16th Bombardment Group
The United States Air Force's 16th Bombardment Group was a very heavy bombardment group that participated in combat in the Pacific Ocean Theater of World War II. History World War II The 16th Bombardment Group was activated on 1 April 1944 at Dalhart Army Air Field, Texas. Its initial operational squadrons were the 15th, 16th,Maurer, ''Combat Squadrons'', p. 88 17thMaurer, ''Combat Squadrons'', p. 93 and 21st Bombardment Squadrons,Maurer, ''Combat Squadrons'', pp. 110–111 and equipped with Boeing B-29B Superfortresses. The group was also assigned a photographic laboratory. However the 21st squadron was inactivated a month after activation as the Army Air Forces reorganized its B-29 units as three-squadron groups. The unit trained for combat initially at Dalhart, then moved to Fairmont Army Air Field, Nebraska on 15 August 1944. The B-29B was a limited production aircraft, built solely by Bell-Atlanta. It had all but the tail defensive armament removed, since experience had s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Twentieth Air Force - Emblem (World War II)
20 (twenty; Roman numeral XX) is the natural number following 19 and preceding 21. A group of twenty units may also be referred to as a score. In mathematics *20 is a pronic number. *20 is a tetrahedral number as 1, 4, 10, 20. *20 is the basis for vigesimal number systems. *20 is the third composite number to be the product of a squared prime and a prime, and also the second member of the (''2''2)''q'' family in this form. *20 is the smallest primitive abundant number. *An icosahedron has 20 faces. A dodecahedron has 20 vertices. *20 can be written as the sum of three Fibonacci numbers uniquely, i.e. 20 = 13 + 5 + 2. *20 is the number of moves (quarter or half turns) required to optimally solve a Rubik's Cube in the worst case. (e.g. the newspaper headline "Scores of Typhoon Survivors Flown to Manila")."CBS News"''Scores of Typhoon Survivors Flown to Manila'' (November 2013) In sports * Twenty20 is a form of limited overs cricket where each team plays only 20 overs. * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fire-control Radar
A fire-control radar (FCR) is a radar that is designed specifically to provide information (mainly target azimuth, elevation, range and range rate) to a fire-control system in order to direct weapons such that they hit a target. They are sometimes known as targeting radars, or in the UK, gun-laying radars. If the radar is used to guide a missile, it is often known as a target illuminator or illuminator radar. A typical fire-control radar emits a narrow, intense beam of radio waves to ensure accurate tracking information and to minimize the chance of losing track of the target. This makes them less suitable for initial detection of the target, and FCRs are often partnered with a medium-range search radar to fill this role. In British terminology, these medium-range systems were known as tactical control radars. Most modern radars have a track-while-scan capability, enabling them to function simultaneously as both fire-control radar and search radar. This works either by hav ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Show Of Force
A show of force is a military operation intended to warn (such as a warning shot) or to intimidate an opponent by showcasing a capability or will to act if one is provoked. Shows of force may also be executed by police forces and other armed, non-military groups. Function Shows of force have historically been undertaken mostly by a military actor unwilling to engage in all-out hostilities, but fearing to 'lose face' (to appear weak). By performing a carefully calculated provocation, the opponent is to be shown that violent confrontation remains an option, and there will be no backing off on the principle that the show of force is to defend. Shows of force may be actual military operations, but in times of official peace, they may also be limited to military exercises. Shows of force also work on a smaller scale: military forces on a tactical level using mock attacks to deter potential opponents, especially when a real attack on suspected (but unconfirmed) enemies might harm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Akita (city)
'Autumn field' is the capital city of Akita Prefecture, Japan, and has been designated a core city since 1 April 1997. , the city has an estimated population of 305,625, 136,628 households and a population density of 340 persons per km2. The total area of the city is . History The area of present-day Akita was part of ancient Dewa Province, and has been inhabited for thousands of years. The Jizōden ruins within the city limits are a major archaeological site with artifacts from the Japanese Paleolithic period through the Jōmon and Yayoi periods. During the Nara period, the Yamato court established Akita Castle in 733 AD to bring the local Emishi tribes under its control. The area was ruled by a succession of local samurai clans in the Sengoku period, before coming under the control of the Satake clan of Kubota Domain during the Edo period. Under the Tokugawa shogunate, a castle town developed around Kubota Castle. Meiji and Taishō Eras With the start of the Meiji perio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nippon Oil
, formerly , or NOC or ''Shin-Nisseki'' (新日石) is a Japanese petroleum company. Its businesses include exploration, importation, and refining of crude oil; the manufacture and sale of petroleum products, including fuels and lubricants; and other energy-related activities. It is the largest oil company in Japan, and in recent years it has been expanding its operations in other countries. Its products are sold under the Eneos brand, which is also used for service stations. It also previously operated service stations under the Esso and Mobil brands under license from ExxonMobil. In 2019, as a result of JX Holdings' merger with TonenGeneral Group in 2017 to form JXTG Holdings, both brands were phased out in favour of Eneos EneJet. History The company was established 1888 as the , or "Nisseki" (日石) for short. In 1999, the company merged with and absorbed the former . The merged company was called until 2002, when it adopted its present name. Worldwide operations The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radar
Radar is a detection system that uses radio waves to determine the distance ('' ranging''), angle, and radial velocity of objects relative to the site. It can be used to detect aircraft, ships, spacecraft, guided missiles, motor vehicles, weather formations, and terrain. A radar system consists of a transmitter producing electromagnetic waves in the radio or microwaves 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 information about the objects' locations and speeds. Radar was developed secretly for military use by several countries in the period before and during World War II. A key development was the cavity magnetron in the United Kingdom, which allowed the creation of relatively small systems with sub-meter resolution ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tactic (method)
A tactic is a conceptual action or short series of actions with the aim of achieving a short-term goal. This action can be implemented as one or more specific tasks. The term is commonly used in business, protest and military contexts, as well as in chess, sports or other competitive activities. The word originated from the Ancient Greek ''taktike'', meaning ''art of arrangement''. Distinction from strategy A strategy is a set of guidelines used to achieve an overall objective, whereas tactics are the specific actions aimed at adhering to those guidelines. Military usage In military usage, a military tactic is used by a military unit of no larger than a division to implement a specific mission and achieve a specific objective, or to advance toward a specific target. The terms tactic and strategy are often confused: tactics are the actual means used to gain an objective, while strategy is the overall campaign plan, which may involve complex operational patterns, activity, and d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ube, Yamaguchi
is a city located in Yamaguchi Prefecture, Japan on the Seto Inland Sea. As of October 2016, the city has an estimated population of 168,398 and a population density of 590 persons per km2. The total area is . History as a modern municipality was established in Yamaguchi's Asa District as part of the modernization of municipalities in most prefectures in 1889. It became on November 1, 1921 in a rare direct elevation from village to city, without being a town in between. Previously a coal mining town, the city has developed an effective policy to improve its environment. In particular it has combated the problem of air pollution and its success in doing so saw it being recognised by the United Nations Environment Programme as among UNEP's Global 500 Roll of Honour in 1997. On November 1, 2004, the town of Kusunoki (from Asa District) was merged into Ube. This brought the city to its current extent, together with previous municipal mergers (Fujiyama in 1931, Kōnan in 194 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kawasaki, Kanagawa
is a city in Kanagawa Prefecture, Japan, one of the main cities of Greater Tokyo Area and Keihin Industrial Area. It is the second most populated city in Kanagawa Prefecture after Yokohama, and the eighth most populated city in Japan (including the Tokyo Metropolitan Area). , the city has an estimated population of 1,503,690, with 716,470 households, and a population density of 10,000 persons per km2. Kawasaki is the only city in Japan with more than one million inhabitants that is not a prefectural capital. The total area is . History Prehistoric and Ancient era Archaeological evidence from the Japanese Paleolithic and Jōmon period can only be found in the northwest Tama Hills. The course of the Tama and the coast of the Bay of Tokyo have also changed in historical times, so that large parts of the urban area are geologically young. Classical era Nara period to the Sengoku period With the introduction of the Ritsuryō legal system, the area came to the Musashi Provin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mitsubishi
The is a group of autonomous Japanese multinational companies in a variety of industries. Founded by Yatarō Iwasaki in 1870, the Mitsubishi Group historically descended from the Mitsubishi zaibatsu, a unified company which existed from 1870 to 1946. The company was disbanded during the occupation of Japan following World War II. The former constituents of the company continue to share the Mitsubishi brand and trademark. Although the group of companies participate in limited business cooperation, most famously through monthly "Friday Conference" executive meetings, they are formally independent and are not under common control. The four main companies in the group are MUFG Bank (the largest bank in Japan), Mitsubishi Corporation (a general trading company), Mitsubishi Electric and Mitsubishi Heavy Industries (both diversified manufacturing companies). History The Mitsubishi company was established as a shipping firm by Iwasaki Yatarō (1834–1885) in 1870 under the n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shimotsu, Wakayama
was a town located in Kaisō District, Wakayama Prefecture, Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north .... As of 2003, the town had an estimated population of 14,481 and a density of 363.57 persons per km². The total area was 39.83 km². On April 1, 2005, Shimotsu was merged into the expanded city of Kainan. External linksOfficial town website(in Japanese) Dissolved municipalities of Wakayama Prefecture {{Wakayama-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oil Refinery
An oil refinery or petroleum refinery is an industrial processes, industrial process Factory, plant where petroleum (crude oil) is transformed and refining, refined into useful products such as gasoline (petrol), diesel fuel, asphalt, asphalt base, fuel oils, heating oil, kerosene, liquefied petroleum gas and petroleum naphtha. Petrochemicals feedstock like ethylene and propene, propylene can also be produced directly by Cracking (chemistry), cracking crude oil without the need of using refined products of crude oil such as naphtha. The crude oil feedstock has typically been processed by an oil production plant. There is usually an oil depot at or near an oil refinery for the storage of incoming crude oil feedstock as well as bulk liquid products. In 2020, the total capacity of global refineries for crude oil was about 101.2 million barrels per day. Oil refineries are typically large, sprawling industrial complexes with extensive piping running throughout, carrying streams of f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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