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Vanta Education
Vanta may refer to: * Vantaa, a city in Finland * Nvidia Vanta, a graphics accelerator manufactured by Nvidia * Vertically aligned carbon nanotube arrays, an advanced material surface ** Vantablack, a super-black surface coating based on nanotubes *"Vanta", a song by the British progressive metal band Monuments. {{disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vantaa
Vantaa (; , ) is a city in Finland. It is located to the north of the capital, Helsinki, in southern Uusimaa. The population of Vantaa is approximately . It is the most populous municipality in Finland. Vantaa is part of the Helsinki Metropolitan Area, which has approximately million inhabitants. The administrative centre of Vantaa is located in the Tikkurila district. Vantaa lies in Southern Finland and shares borders with Helsinki, the Finnish capital, to the south, Espoo to the southwest, Nurmijärvi to the northwest, Kerava and Tuusula to the north, and Sipoo to the east. The city covers a total area of , of which is water. Vantaa's significant attractions include Vantaa River (''Vantaanjoki''), which runs through the city before flowing into the Gulf of Finland. The Helsinki Airport, situated in Vantaa, serves as the largest airport in Finland and the primary airline hub for the Helsinki metropolitan area. Companies headquartered in Vantaa comprise Finnair, F ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vertically Aligned Carbon Nanotube Arrays
In materials science, vertically aligned carbon nanotube arrays (VANTAs) are a unique microstructure consisting of carbon nanotubes oriented with their longitudinal axis perpendicular to a substrate surface. These VANTAs effectively preserve and often accentuate the unique anisotropic properties of individual carbon nanotubes and possess a morphology that may be precisely controlled. VANTAs are consequently widely useful in a range of current and potential device applications. Synthesis There are a handful of experimental technologies available to align a single or an array of CNTs along a pre-determined orientation. The techniques rely on different mechanisms and therefore are applicable to different situations. These techniques are categorized into two groups pertaining to when the alignment is achieved: (a) in-situ techniques where alignment is achieved during the CNT growth process and (b) ex-situ techniques where CNTs are originally grown in random orientations and alignmen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vantablack
Vantablack is a class of super-black coatings with total hemispherical reflectances (THR) below 1% in the visible spectrum. The name is a portmanteau of the acronym ''VANTA'' ( vertically aligned nanotube arrays) and ''black''. The original Vantablack coating was grown from a chemical vapour deposition process (CVD) and is claimed to be the "world's darkest material" absorbing up to 99.965% of visible light measured perpendicular to the material. The coatings are unique in that they are super-black and retain uniform light absorption from almost all viewing angles. Original CVD Vantablack is no longer manufactured for commercial applications as it has been superseded by Vantablack spray coatings that offer similar optical performance in key parts of the electromagnetic spectrum. History Ben Jensen, founder and CTO of Surrey NanoSystems, invented the coatings, which were publicly unveiled in July 2014, and eventually commercialized by the scientific team from Surrey NanoSystem ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
