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3U Telecom
3U or 3-U may refer to: * Sichuan Airlines's IATA code *A type of Rack unit A rack unit (abbreviated U or RU) is a unit of measure defined as . It is most frequently used as a measurement of the overall height of 19-inch and 23-inch rack frames, as well as the height of equipment that mounts in these frames, whereby th ... * Zerstörergeschwader 26, from its historic ''Geschwaderkennung'' code with the Luftwaffe in World War II *A CubeSat measuring 30×10×10 cm *The acronym for the third (3rd) catalog of Uhuru x-ray sources See also * U3 (other) {{Letter-number combination disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sichuan Airlines
Sichuan Airlines Co., Ltd. () is a Chinese airline based in Chengdu Shuangliu International Airport in Chengdu, Sichuan Province, and is the largest airline in western China, operating mainly scheduled domestic and international flights out of Chengdu Shuangliu Airport, Chongqing Jiangbei International Airport and Kunming Changshui International Airport. History The airline was established on 19 September 1986 as Sichuan Airlines Company, its first flight was on 14 July 1988 between Chengdu and Wanzhou. The airline was later restructured as Sichuan Airlines Co., Ltd. on 29 August 2002, in which the Sichuan Airlines Co., Ltd. Group became the major shareholder (40%). The other shareholders are China Southern Airlines (39%), China Eastern Airlines (10%), Air China Group (10%) and Chengdu Gingko Restaurant Co. (1%). Corporate affairs Operations Sichuan Airlines' corporate headquarters is located in its hub Chengdu Shuangliu International Airport in Shuangliu District, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rack Unit
A rack unit (abbreviated U or RU) is a unit of measure defined as . It is most frequently used as a measurement of the overall height of 19-inch and 23-inch rack frames, as well as the height of equipment that mounts in these frames, whereby the height of the frame or equipment is expressed as multiples of rack units. For example, a typical full-size rack cage is 42U high, while equipment is typically 1U, 2U, 3U, or 4U high. Definition The rack unit size is based on a standard rack specification as defined in EIA-310. The Eurocard specifies a standard rack unit as the unit of height; it also defines a similar unit, horizontal pitch (HP), used to measure the width of rack-mounted equipment. The standard was adopted worldwide as ''IEC 60297 Mechanical structures for electronic equipment – Dimensions of mechanical structures of the series'', and defines the sizes for rack, subrack (a shelf-like chassis in which cards can be inserted), and the pitch of printed circuit boards/ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zerstörergeschwader 26
''Zerstörergeschwader'' 26 (ZG 26) "Horst Wessel" was a Luftwaffe heavy fighter wing of World War II. Formed on 1 May 1939, ZG 26 was initially armed with the Messerschmitt Bf 109 single-engine interceptor due to production shortfalls with the Messerschmitt Bf 110 Zerstörer-class aircraft. The wing served on the dormant Western Front during the Phoney War stage in 1939 and 1940. During this phase ZG 26 was equipped with the Bf 110. It formed part of Luftflotte 2 and fought in the Battle of the Netherlands, Battle of Belgium and Battle of France in May and June 1940. The wing continued to operate in the Battle of Britain, albeit in a much reduced role owing to losses. In 1941 ZG 26 served again with success in the German invasion of Yugoslavia and Battle of Greece and then Battle of Crete in April and May. From June 1941, the bulk of ZG 26 fought on the Eastern Front from Operation Barbarossa which began the war on the Soviet Union. ZG 26 supported Army Group Centre and Army ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CubeSat
A CubeSat is a class of miniaturized satellite based around a form factor consisting of cubes. CubeSats have a mass of no more than per unit, and often use commercial off-the-shelf (COTS) components for their electronics and structure. CubeSats are put into orbit by deployers on the International Space Station, or launched as secondary payloads on a launch vehicle. , more than 1,600 CubeSats have been launched. In 1999, California Polytechnic State University (Cal Poly) professor Jordi Puig-Suari and Bob Twiggs, a professor at Stanford University Space Systems Development Laboratory, developed the CubeSat specifications to promote and develop the skills necessary for the design, manufacture, and testing of small satellites intended for low Earth orbit (LEO) that perform a number of scientific research functions and explore new space technologies. Academia accounted for the majority of CubeSat launches until 2013, when more than half of launches were for non-academic purposes, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Uhuru (satellite)
Uhuru was the first satellite launched specifically for the purpose of X-ray astronomy. It was also known as the X-ray Explorer Satellite, SAS-A (for Small Astronomy Satellite A, being first of the three-spacecraft SAS series), SAS 1, or Explorer 42. The space observatory, observatory was launched on December 12, 1970 into an initial orbit of about 560 km apogee, 520 km perigee, 3 degrees inclination, with a period of 96 minutes. The mission ended in March 1973. Uhuru was a scanning mission, with a spin period of ~12 minutes. It performed the first comprehensive survey of the entire sky for X-ray sources, with a sensitivity of about 0.001 times the intensity of the Crab nebula. Objectives The main objectives of the mission were: * To survey the sky for cosmic X-ray sources in the 2–20 keV range to a limiting sensitivity of 1.5 × 10−18 joule/(cm2-sec), 5 × 10−4 the flux from the Crab Nebula * To determine discrete source locations with a precision of a few square ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
