NHT Airlines
NHT may refer to: * National historic trail, in the United States * Natural Heritage Trust, an Australian government body * Naval Historical Team, of the United States Navy * NHT Airlines, a defunct Brazilian airline * NHT Loudspeakers, an American electronics company * Number theoretic Hilbert transform * Ometepec Náhuatl language * RAF Northolt, a Royal Air Force station in Greater London * Union Station (Northampton, Massachusetts) Union Station is a historic building in Northampton, Massachusetts, that served as a train station from 1897 until 1987. Built at the close of the nineteenth century, the structure incorporates many features of the Richardsonian Romanesque archite ...

National Historic Trail
The National Trails System is a series of trails in the United States designated "to promote the preservation of, public access to, travel within, and enjoyment and appreciation of the open-air, outdoor areas and historic resources of the Nation". There are four types of trails: the national scenic trails, national historic trails, national recreation trails, and connecting or side trails. The national trails provide opportunities for hiking and historic education, as well as horseback riding, biking, camping, scenic driving, water sports, and other activities. The National Trails System consists of 11 national scenic trails, 19 national historic trails, over 1,300 national recreation trails, and seven connecting and side trails, as well as one national geologic trail, with a total length of more than . The scenic and historic trails are in every state, and Virginia and Wyoming have the most running through them, with six. In response to a call by President Lyndon B. Johnson ...
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Natural Heritage Trust
The Natural Heritage Trust (NHT), or National Heritage Trust Account was set up in 1997 by means of the ''Natural Heritage Trust of Australia Act 1997'', with the main objective of conserving the "natural capital infrastructure" of Australia. Money from the NHT Account must be spent on the environment, sustainable agriculture and natural resources management (NRM). Since its establishment, a considerable number of community groups and organisations have received funding for environmental and natural resource management projects, delivered via a number of different initiatives since 1997. , the NHT account is funding a program known as Phase Two of the National Landcare Program. The original National Landcare Program was launched in 1992, but in 2014 merged with the Caring for our Country program (established 2008, and funded through NHT). The Natural Heritage Ministerial Board was established under the Act, to provide a mechanism for liaison between the Environment and Agricultu ...
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Naval Historical Team
The Naval Historical Team (NHT) was established by the U.S. Navy in 1949. It was a group of German naval officers under American orders to reappraise the naval war history of World War II from the German perspective. The group was under control of the Office of Naval Intelligence. At the end of 1952, the NHT was disbanded, but was re-established in Karlsruhe in 1954. Under the leadership of Captain Arthur H. Graubart, Chief of Naval Intelligence in Germany, the NHT first met on 9 April 1949 in Bremerhaven. The staff included '' Generaladmiral'' a. D. Otto Schniewind,''außer Dienst'' (a.D.) stands for out of office or retired. ''Vizeadmiral'' a. D. Friedrich Ruge, ''Vizeadmiral'' a. D. Hellmuth Heye, ''Konteradmiral'' a. D. Gerhard Wagner and ''Oberst'' a. D. Gaul. Temporarily it was further augmented by ''Konteradmiral'' a. D. Eberhard Godt, ''Kapitän zur See'' a. D. Hans-Rudolf Rösing and ''Fregattenkapitän'' a. D. Karl-Adolf Zenker. The group considered itself an incubator ...
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NHT Airlines
NHT may refer to: * National historic trail, in the United States * Natural Heritage Trust, an Australian government body * Naval Historical Team, of the United States Navy * NHT Airlines, a defunct Brazilian airline * NHT Loudspeakers, an American electronics company * Number theoretic Hilbert transform * Ometepec Náhuatl language * RAF Northolt, a Royal Air Force station in Greater London * Union Station (Northampton, Massachusetts) Union Station is a historic building in Northampton, Massachusetts, that served as a train station from 1897 until 1987. Built at the close of the nineteenth century, the structure incorporates many features of the Richardsonian Romanesque archite ...

NHT Loudspeakers
NHT Loudspeakers (Now Hear This), often colloquially referred to as NHT Audio, is an American loudspeaker and audio component company based in Benicia, California. The company was founded by Chris Byrne and Ken Kantor in December 1986. NHT home theater products have historically included loudspeakers, A/V processors, and amplifiers. NHT professional processors and speakers are used in recording and production studios. The current NHT lineup consists solely of acoustic suspension loudspeakers and in-wall/in-ceiling speakers. History Byrne primarily handled sales and marketing, while Kantor (introduced to Byrne by Michael Riggs, then at ''High Fidelity'' magazine) was responsible for design and engineering. In 1987, NHT shipped its first product, the Model 1 loudspeaker. In 2004, NHT unveiled its XdS line of speakers and supporting processors. XdS speakers are DSP DSP may refer to: Computing * Digital signal processing, the mathematical manipulation of an information si ...
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Number Theoretic Hilbert Transform
The number theoretic Hilbert transform is an extension of the discrete Hilbert transform to integers modulo a prime p. The transformation operator is a circulant matrix. The number theoretic transform is meaningful in the ring \mathbb_m, when the modulus m is not prime, provided a principal root of order ''n'' exists. The n\times n NHT matrix, where n =2m, has the form : NHT= \begin 0 & a_ & \dots & 0 & a_ \\ a_ & 0 & a_ & & 0 \\ \vdots & a_& 0 & \ddots & \vdots \\ 0 & & \ddots & \ddots & a_ \\ a_ & 0& \dots & a_ & 0 \\ \end. The rows are the cyclic permutations of the first row, or the columns may be seen as the cyclic permutations of the first column. The NHT is its own inverse:NHT^\mathrm NHT = NHT NHT^\mathrm = I \bmod\ p, \, where ''I'' is the identity matrix. The number theoretic Hilbert transform can be used to generate sets of orthogonal discrete sequences that have applications in signal processing, wireless systems, and crypt ...
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Ometepec Náhuatl Language
Ometepec is a city and the seat of the municipality of Ometepec, in the state of Guerrero, south-western Mexico Mexico (Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guatema .... Instituto Nacional de Estadística y Geografía. Principales resultados por localidad 2005 (ITER). Retrieved on December 23, 2008 References Populated places in Guerrero {{Guerrero-geo-stub ...
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RAF Northolt
("Ready to carry or to fight") , pushpin_map = Greater London , pushpin_label = RAF Northolt , pushpin_map_caption = Shown within Greater London , coordinates = , type = Royal Air Force station , code = , site_area = , height = , ownership = Ministry of Defence , operator = Royal Air Force , controlledby = No. 2 Group (Air Combat Support) , condition = , built = , builder = , used = 1915–present , materials = , fate = , battles = , events = , current_commander = , past_commanders = , garrison = , occupants = * No. 32 (The Royal) Squadron * No. 63 Squadron RAF Regiment * No. 600 Squadron (RAuxAF) * No. 38 Expeditionary Air Wing * HQ RAF Music Services * Central Band of the RAF * Band of the Royal Air Force Regiment * 621 Explosive Ordnance Disposal Squadron * British Forces Post Office * No. 1 Aeronautical Information Documents Unit * Service Prosecution Authority , open_to_public = , website = , IATA =NHT , ICAO =EGWU , FAA = , TC = , LID ...
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