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VT-Patrol
VT-Patrol is a short-range military unmanned aerial vehicle (UAV) manufactured by Viettel, the telecom + R&D branch of the Army. It saw its first flight in 2013. Specifications Each VT-Patrol has a height and width and weight of 2.31x0.78 m respectively. It also has a wingspan of 3.35; weights 26 kg; flight velocity of 100 - 150 km/h and an operational radio range of 50 km. HD and infrared camera sources can transmit back humanoid enemies in a range up to 600 meters. Plans for the UAV to enter services are done in 2013 File:2013 Events Collage V2.png, From left, clockwise: Edward Snowden becomes internationally famous for leaking classified NSA wiretapping information; Typhoon Haiyan kills over 6,000 in the Philippines and Southeast Asia; The Dhaka garment fa ..., and other plans for bigger Vietnamese designed-and-made UAVs are still on the way. References Unmanned military aircraft of Vietnam {{UAV-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Viettel
The Viettel Military Industry and Telecoms Group (), less formally recognized as Viettel Group () or simply Viettel, is a Vietnamese multinational telecommunications company headquartered in Hanoi, Vietnam. Viettel is the largest telecommunications service provider in Vietnam. It is a state-owned enterprise and operated by the Ministry of National Defence. Viettel Telecom is currently the dominant network operator with the largest market share in Vietnamese telecommunications services market. For 30 years, Viettel has grown from a construction company to a complex of five business lines including telecommunications and information technology (IT); research and manufacture of electronic and telecommunications equipment; defense industry; cyber security and digital services. Viettel is considered one of the largest and most effective state-owned enterprises of Vietnam, thanks to its highest revenue, largest contribution to the State budget and highest brand value. Since 2000, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Unmanned Aerial Vehicle
An unmanned aerial vehicle (UAV), commonly known as a drone, is an aircraft without any human pilot, crew, or passengers on board. UAVs are a component of an unmanned aircraft system (UAS), which includes adding a ground-based controller and a system of communications with the UAV. The flight of UAVs may operate under remote control by a human operator, as remotely-piloted aircraft (RPA), or with various degrees of autonomy, such as autopilot assistance, up to fully autonomous aircraft that have no provision for human intervention. UAVs were originally developed through the twentieth century for military missions too "dull, dirty or dangerous" for humans, and by the twenty-first, they had become essential assets to most militaries. As control technologies improved and costs fell, their use expanded to many non-military applications.Hu, J.; Bhowmick, P.; Jang, I.; Arvin, F.; Lanzon, A.,A Decentralized Cluster Formation Containment Framework for Multirobot Systems IEEE ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
People's Army Of Vietnam
The People's Army of Vietnam (PAVN; vi, Quân đội nhân dân Việt Nam, QĐNDVN), also recognized as the Vietnam People's Army (VPA) or the Vietnamese Army (), is the military force of the Socialist Republic of Vietnam and the armed wing of the ruling Communist Party of Vietnam. The PAVN is a part of the Vietnam People's Armed Forces and includes: Ground Force, Navy, Air Force, Border Guard and Coast Guard. However, Vietnam does not have a separate Ground Force or Army branch. All ground troops, army corps, military districts and specialised arms belong to the Ministry of Defence, directly under the command of the Central Military Commission, the Minister of Defence, and the General Staff of the Vietnam People's Army. The military flag of the PAVN is the flag of the Socialist Republic of Vietnam, with the words ''Quyết thắng (Determination to win)'' added in yellow at the top left. During the French Indochina War (1946–1954), the PAVN was often referred to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2013
File:2013 Events Collage V2.png, From left, clockwise: Edward Snowden becomes internationally famous for leaking classified NSA wiretapping information; Typhoon Haiyan kills over 6,000 in the Philippines and Southeast Asia; The Dhaka garment factory collapse in Bangladesh kills over 1,000 people; The streak from the Chelyabinsk meteor that rocketed across the Russian morning sky; Protests occur amid the coup d'état that overthrew President Mohamed Morsi of Egypt; Smoke rises as a result of the Westgate shopping mall attack in Nairobi, Kenya, carried out by Al-Shabaab militants; The Boston Marathon bombing marks the first terrorist attack in the United States since 9/11; Pope Francis is elected to the Papacy in the 2013 papal conclave., 300x300px, thumb rect 0 0 200 200 Edward Snowden rect 200 0 400 200 Typhoon Haiyan rect 400 0 600 200 Dhaka garment factory collapse rect 0 200 300 400 2013 papal conclave rect 300 200 600 400 Chelyabinsk meteor rect 0 400 200 600 Bosto ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Meter
The metre (British spelling) or meter (American spelling; see spelling differences) (from the French unit , from the Greek noun , "measure"), symbol m, is the primary unit of length in the International System of Units (SI), though its prefixed forms are also used relatively frequently. The metre was originally defined in 1793 as one ten-millionth of the distance from the equator to the North Pole along a great circle, so the Earth's circumference is approximately km. In 1799, the metre was redefined in terms of a prototype metre bar (the actual bar used was changed in 1889). In 1960, the metre was redefined in terms of a certain number of wavelengths of a certain emission line of krypton-86. The current definition was adopted in 1983 and modified slightly in 2002 to clarify that the metre is a measure of proper length. From 1983 until 2019, the metre was formally defined as the length of the path travelled by light in a vacuum in of a second. After the 2019 rede ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wingspan
The wingspan (or just span) of a bird or an airplane is the distance from one wingtip to the other wingtip. For example, the Boeing 777–200 has a wingspan of , and a wandering albatross (''Diomedea exulans'') caught in 1965 had a wingspan of , the official record for a living bird. The term wingspan, more technically extent, is also used for other winged animals such as pterosaurs, bats, insects, etc., and other aircraft such as ornithopters. In humans, the term wingspan also refers to the arm span, which is distance between the length from one end of an individual's arms (measured at the fingertips) to the other when raised parallel to the ground at shoulder height at a 90º angle. Former professional basketball player Manute Bol stood at and owned one of the largest wingspans at . Wingspan of aircraft The wingspan of an aircraft is always measured in a straight line, from wingtip to wingtip, independently of wing shape or sweep. Implications for aircraft design and a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Km/h
The kilometre per hour ( SI symbol: km/h; non-standard abbreviations: kph, km/hr) is a unit of speed, expressing the number of kilometres travelled in one hour. History Although the metre was formally defined in 1799, the term "kilometres per hour" did not come into immediate use – the myriametre () and myriametre per hour were preferred to kilometres and kilometres per hour. In 1802 the term "''myriamètres par heure''" appeared in French literature. The Dutch on the other hand adopted the kilometre in 1817 but gave it the local name of the ''mijl'' ( Dutch mile). Notation history The SI representations, classified as symbols, are "km/h", "" and "". Several other abbreviations of "kilometres per hour" have been used since the term was introduced and many are still in use today; for example, dictionaries list "kph", "kmph" and "km/hr" as English abbreviations. While these forms remain widely used, they are explicitly disallowed by the International Bureau of Weights and Measure ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
High-definition Television
High-definition television (HD or HDTV) describes a television system which provides a substantially higher image resolution than the previous generation of technologies. The term has been used since 1936; in more recent times, it refers to the generation following standard-definition television (SDTV), often abbreviated to HDTV or HD-TV. It is the current de facto standard video format used in most broadcasts: terrestrial broadcast television, cable television, satellite television and Blu-ray Discs. Formats HDTV may be transmitted in various formats: * 720p (1280 horizontal pixels × 720 lines): 921,600 pixels * 1080i (1920×1080) interlaced scan: 1,036,800 pixels (~1.04 MP). * 1080p (1920×1080) progressive scan: 2,073,600 pixels (~2.07 MP). ** Some countries also use a non-standard CEA resolution, such as 1440×1080i: 777,600 pixels (~0.78 MP) per field or 1,555,200 pixels (~1.56 MP) per frame When transmitted at two megapixels per frame, HDTV provides about five times ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Infrared Camera
Infrared (IR), sometimes called infrared light, is electromagnetic radiation (EMR) with wavelengths longer than those of visible light. It is therefore invisible to the human eye. IR is generally understood to encompass wavelengths from around 1 millimeter (300 GHz) to the nominal red edge of the visible spectrum, around 700 nanometers (430 THz). Longer IR wavelengths (30 μm-100 μm) are sometimes included as part of the terahertz radiation range. Almost all black-body radiation from objects near room temperature is at infrared wavelengths. As a form of electromagnetic radiation, IR propagates energy and momentum, exerts radiation pressure, and has properties corresponding to both those of a wave and of a particle, the photon. It was long known that fires emit invisible heat; in 1681 the pioneering experimenter Edme Mariotte showed that glass, though transparent to sunlight, obstructed radiant heat. In 1800 the astronomer Sir William Herschel discove ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
