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D4 Enterprise Games
D4, D.IV, d4 or variants may refer to: Science and medicine * 22-Dihydroergocalciferol, vitamin D4 * D4-isoprostane, a type of isoprostane * ATC code D04, ''Antipruritics, including antihistamines, anesthetics, etc.'', a subgroup of the Anatomical Therapeutic Chemical Classification System * D04, Carcinoma in situ of skin ICD-10 code * Dopamine receptor D4, a human gene * Octamethylcyclotetrasiloxane, called D4 Mathematics * Dihedral group of order 4, otherwise known as the Klein four-group * Dihedral group of order 8, the symmetry group of a regular 4-gon * D4 (root system) Technology and computing * D4 (programming language), a programming language of the Dataphor system * D4 video connector, a type of analog video connector found on Japanese consumer electronics * D4 framing standard, a framing standard for traditional time-division multiplexing Aircraft * Albatros D.IV, a World War I experimental German fighter aircraft * Auster D.4, a 1960 two-seat British light ai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
22-Dihydroergocalciferol
22-Dihydroergocalciferol is a form of vitamin D, also known as vitamin D4. It has the systematic name (5''Z'',7''E'')-(3''S'')-9,10-seco-5,7,10(19)-ergostatrien-3-ol. Vitamin D4 is found in certain mushrooms, being produced from ergosta-5,7-dienol (22,23-dihydroergosterol) instead of ergosterol. See also *Vitamin D#Types, Forms of vitamin D, the five known forms of vitamin D *Lumisterol, a constituent of vitamin D1 References External linksDihydroergocalciferols at lipidmaps.org Vitamin D {{biochem-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fokker D
Fokker (; ) was a Dutch aircraft manufacturer that operated from 1912 to 1996. The company was founded by the Dutch aviator Anthony Fokker and became famous during World War I for its fighter aircraft. During its most successful period in the 1920s and 1930s, Fokker dominated the civil aviation market. The company's fortunes declined over the course of the late 20th century; it declared bankruptcy in 1996, and its operations were sold to competitors. History Fokker in Germany At age 20, while studying in Germany, Anthony Fokker built his initial aircraft, the ''Spin'' (Spider)—the first Dutch-built plane to fly in his home country. Taking advantage of better opportunities in Germany, he moved to Berlin, where in 1912, he founded his first company, Fokker Aeroplanbau, later moving to the Görries suburb just southwest of Schwerin (at ), where the current company was founded, as Fokker Aviatik GmbH, on 12 February 1912. World War I Fokker capitalized on having sold several ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
D4 Motorway (Slovakia)
D4 motorway () is a Slovak motorway which, when completed, will form the outer ring road around Bratislava, speed up access to motorway networks and partially reduce traffic on the road network in the catchment areas of Bratislava. The D4 is one of Europe's largest public-private partnership ( PPP) projects. For decades, there was only a short stretch from Austrian border at Jarovce to the junction with D2 (part of the former D61), construction of which started in 1996 and was opened in 1998. Construction of various other parts started in the late 2010s, with several openings throughout 2020 and 2021. The extension to the motorway D1 in Bratislava is underway, in order to connect the southern bypass of Bratislava to the country's main traffic artery. The outer ring road also intersects with expressway R7; parts of which are already open as well. Chronology The connecting motorway on the Austrian side, Nordost Autobahn A6 was opened on 19 November 2007. The highway con ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
D4 Motorway (Czech Republic)
D4 motorway (), until 31 December 2015 formerly Limited-access highway, Expressway R4 () is a Controlled-access highway, motorway running from Prague in the Czech Republic, in a southwesterly direction. Some of the sections are managed through the Public–private partnership, PPP project called ''Via Salis'' (Salt Road). A total of is in operation. The route roughly follows the route of the historic Golden Trail and the I/4 road, which connects Prague and the western half of the South Bohemian Region. The highway starts at the exit from the I/4 Jíloviště road, because the section between Prague and Jíloviště, although it is four-lane, lacks an accompanying road, and therefore this section cannot be classified as a highway and tolled. A Vignette (road tax), vignette is therefore required only further south of Jíloviště, and along the entire route of the highway. On the second newest section between Mirotici and Třebkovo, the D4 highway is still free of tolls. The free ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Spokane, Portland And Seattle Railway Locomotives
The Spokane, Portland and Seattle Railway (SP&S) used a combination of new and used locomotives. For more information see the SP&S Historical Society Resources.https://www.spshs.org/resources/ Steam locomotives Most of these locomotives were purchased or leased from the SP&S's parent roads Great Northern Railway and Northern Pacific Railway. The 4-8-4 Northerns and 4-6-6-4 In the Whyte notation for classifying steam locomotives by wheel arrangement, a 4-6-6-4 is a railroad steam locomotive that has four leading wheels followed by two sets of six coupled driving wheels and four trailing wheels. 4-6-6-4's are comm ... Challengers were purchased new. This roster groups steam locomotives by their wheel arrangement and the railroad's designated class. Diesel locomotives Most of these locomotives were purchased new by the SP&S. Some were, however, purchased second-hand from the Great Northern. The SP&S gained some popularity with railroad fans for its large proportion of d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SP&S Class D-4
The Spokane, Portland & Seattle Railway (SP&S; ) was a railroad in the northwest United States. Incorporated in 1905, it was a joint venture by the Great Northern Railway and the Northern Pacific Railway to build a railroad along the north bank of the Columbia River. The railroad later built or acquired other routes in Oregon. The SP&S was merged into the Burlington Northern in March 1970. Remnants of the line are currently operated by BNSF Railway and the Portland and Western Railroad. History The railroad was chartered in 1905 by James J. Hill to connect the two transcontinental railroads owned by him, the Northern Pacific (NP) and Great Northern (GN), to Portland, Oregon from Spokane, Washington, to gain a portion of the lumber trade in Oregon, a business then dominated by E. H. Harriman's Union Pacific and Southern Pacific railroads. Construction began in 1906"Greatest Year for Railroad Construction: Building in Territory Tributary to Portland During 1906 Breaks All Reco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PRR D4
The Pennsylvania Railroad's steam locomotive class D4 (formerly Class C (anthracite), pre-1895) comprised thirty-seven anthracite-burning locomotives intended for general passenger and freight service on the PRR's New Jersey lines, constructed at the railroad's own Altoona Works (now owned by Norfolk Southern) during 1873–1890. They shared many parts with other standard classes. This design differed from the Class C (later D3) mainly in its longer firebox to burn slower-burning anthracite Anthracite, also known as hard coal and black coal, is a hard, compact variety of coal that has a lustre (mineralogy)#Submetallic lustre, submetallic lustre. It has the highest carbon content, the fewest impurities, and the highest energy densit ... coal. Like all the early standardized 4-4-0s on the PRR, the Class C (Anthracite) had a wagon-top boiler with steam dome and a firebox between the two driving axles. In 1875, fifteen locomotives were either built or converted (sources differ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
LNER Class D4
D4, D.IV, d4 or variants may refer to: Science and medicine * 22-Dihydroergocalciferol, vitamin D4 * D4-isoprostane, a type of isoprostane * ATC code D04, ''Antipruritics, including antihistamines, anesthetics, etc.'', a subgroup of the Anatomical Therapeutic Chemical Classification System * D04, Carcinoma in situ of skin ICD-10 code * Dopamine receptor D4, a human gene * Octamethylcyclotetrasiloxane, called D4 Mathematics * Dihedral group of order 4, otherwise known as the Klein four-group * Dihedral group of order 8, the symmetry group of a regular 4-gon * D4 (root system) Technology and computing * D4 (programming language), a programming language of the Dataphor system * D4 video connector, a type of analog video connector found on Japanese consumer electronics * D4 framing standard, a framing standard for traditional time-division multiplexing Aircraft * Albatros D.IV, a World War I experimental German fighter aircraft * Auster D.4, a 1960 two-seat British light ai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steam Locomotives Of Ireland
A wide variety of steam locomotives have been used on History of rail transport in Ireland, Ireland's railways. This page lists most if not all those that have been used in the Republic of Ireland and Northern Ireland. Irish railways generally followed British practice in locomotive design. The list that follows is roughly geographic (north to south) order. Northern Ireland The Ulster Transport Authority, which controlled the railways in Northern Ireland between 1948 and 1966, replaced Steam locomotive, steam haulage on passenger trains with diesel multiple units, but had only two diesel shunting locomotives, which meant a continued role for steam on freight work. Twenty-three locomotives passed to Northern Ireland Railways in 1967, but most were not used again and all had been withdrawn by 1971. Belfast and County Down Railway The Belfast and County Down Railway was founded in 1848. It absorbed the Belfast, Hollywood and Bangor Railway in 1884 and continued operating until it w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
