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t. e. Orthogonal frequency-division multiple access ( OFDMA) is a multi-user version of the popular orthogonal frequency-division multiplexing (OFDM) digital modulation scheme. Multiple access is achieved in OFDMA by assigning subsets of subcarriers to individual users. This allows simultaneous low-data-rate transmission from several users.
Access control matrix. In computer science, an access control matrix or access matrix is an abstract, formal security model of protection state in computer systems, that characterizes the rights of each subject with respect to every object in the system. It was first introduced by Butler W. Lampson in 1971. [1]
The 1871–1945 Japanese military and naval ranks were phased out after World War II. The Self-Defence Force breaks away from the Sino-centric tradition of non-branch-specified ranks; each JSDF rank with respect to each service carries a distinct Japanese title, although equivalent titles in different branches are still similar, differing only ...
Microsoft Bing, commonly referred to as Bing, is a search engine owned and operated by Microsoft. The service traces its roots back to Microsoft's earlier search engines, including MSN Search, Windows Live Search, and Live Search. Bing offers a broad spectrum of search services, encompassing web, video, image, and map search products, all ...
Thích Quảng Đức ( chữ Hán: 釋 廣 德, Vietnamese: [tʰǐk̟ kʷâːŋ ɗɨ̌k] ⓘ; born Lâm Văn Túc; 1897 – 11 June 1963) was a Vietnamese Mahayana Buddhist monk who died by self-immolation at a busy Saigon road intersection on 11 June 1963. [2] Quảng Đức was protesting against the persecution of Buddhists by the South ...
A) A superhydrophobic surface with a high contact angle nearing 180 degrees. B) A surface with a low water sliding angle. C) A surface with a higher sliding angle which will be less efficient when self-cleaning water from its surface. Control over surface wettability is a critical aspect of self-cleaning surfaces.
The weather service said there could be a threat of strong to severe storms for late Sunday afternoon into the night. Locally heavy rain will also be possible. There is also a chance of storms on ...
An autonomous building is a building designed to be operated independently from infrastructural support services such as the electric power grid, gas grid, municipal water systems, sewage treatment systems, storm drains, communication services, and in some cases, public roads . Advocates of autonomous building describe advantages that include ...