|
A Band (other)
A band may refer to: * A band (NATO), a range of radio frequencies * A-band, an absorption band for molecular oxygen * A Band, a musical improvisation group, originally from Nottingham, England * A band (anatomy), the anisotropic band in sarcomeres * A (band), a rock band from Suffolk, England * A band, a group of musicians See also * A (other) {{disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
A Band (NATO)
The NATO A band is the obsolete designation given to the radio frequencies from 0 to 250 MHz (equivalent to wavelengths from 1.2 m upwards) during the cold war period. Since 1992, frequency allocations, allotment and assignments are in line with the NATO Joint Civil/Military Frequency Agreement. However, in order to identify military radio spectrum requirements, e.g. for crisis management planning, training, electronic warfare activities, or in military operations, this system is still in use. NATO Radio spectrum designation ; Examples to military frequency utilisation in this particular band: *HF long distance radio communications *tactical UHF radio communications *aeronautical mobile service Aeronautical mobile service (short: AMS; also aeronautical mobile radiocommunication service) is a form of aviation communication conducted through Radio communication station, radio. The ITU Radio Regulations divide AMS into communication used ... References Radio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Absorption Band
In spectroscopy, an absorption band is a range of wavelengths, frequency, frequencies or energies in the electromagnetic spectrum that are characteristic of a particular transition from initial to final state in a substance. According to quantum mechanics, atoms and molecules can only hold certain defined quantities of energy, or exist in specific Quantum state, states. When such quantum, quanta of electromagnetic radiation are emitted or absorbed by an atom or molecule, energy of the radiation changes the state of the atom or molecule from an Ground state, initial state to a Excited state, final state. Overview When electromagnetic radiation is absorbed by an atom or molecule, the energy of the radiation changes the state of the atom or molecule from an Ground state, initial state to a Excited state, final state. The number of states in a specific energy range is discrete for gaseous or diluted systems, with discrete energy levels. Condensed matter physics, Condensed systems, lik ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
A Band
A band may refer to: * A band (NATO) The NATO A band is the obsolete designation given to the radio frequencies from 0 to 250 MHz (equivalent to wavelengths from 1.2 m upwards) during the cold war period. Since 1992, frequency allocations, allotment and assignments are in line ..., a range of radio frequencies * A-band, an absorption band for molecular oxygen * A Band, a musical improvisation group, originally from Nottingham, England * A band (anatomy), the anisotropic band in sarcomeres * A (band), a rock band from Suffolk, England * A band, a group of musicians See also * A (other) {{disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
A Band (anatomy)
A sarcomere (Greek σάρξ ''sarx'' "flesh", μέρος ''meros'' "part") is the smallest functional unit of striated muscle tissue. It is the repeating unit between two Z-lines. Skeletal muscles are composed of tubular muscle cells (called muscle fibers or myofibers) which are formed during embryonic myogenesis. Muscle fibers contain numerous tubular myofibrils. Myofibrils are composed of repeating sections of sarcomeres, which appear under the microscope as alternating dark and light bands. Sarcomeres are composed of long, fibrous proteins as filaments that slide past each other when a muscle contracts or relaxes. The costamere is a different component that connects the sarcomere to the sarcolemma. Two of the important proteins are myosin, which forms the thick filament, and actin, which forms the thin filament. Myosin has a long fibrous tail and a globular head that binds to actin. The myosin head also binds to ATP, which is the source of energy for muscle movement. Myosi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
A (band)
A are a British alternative rock band from Suffolk, England, which formed in 1993. They have released 4 studio and 2 live albums, including their debut '' How Ace Are Buildings'' and the UK top 20 album '' Hi-Fi Serious''. Single releases have also achieved chart success, with one UK top 10, four UK top 40 and seven UK top 100 singles. Shortly after releasing their fourth album, '' Teen Dance Ordinance'', in 2005, the band briefly split. In 2007 'A' reunited for a one-off gig, and have been touring sporadically ever since including playing the main stage at Download Pilot on June 19, 2021. They have not released any further albums since 2005. History Formation, ''How Ace Are Buildings'' and ''A vs. Monkey Kong'' (1993–2000) The band began in Suffolk in the mid 1980s as Grand Designs, named after the song by Rush. The founder members were twins Jason and Adam Perry and their friend Mark Chapman, with bassist Stevie Swindon and the twins' younger brother Giles Perry. They ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Musical Ensemble
A musical ensemble, also known as a music group, musical group, or a band is a group of people who perform Instrumental music, instrumental and/or vocal music, with the ensemble typically known by a distinct name. Some music ensembles consist solely of instrumentalists, such as the jazz quartet or the orchestra. Other music ensembles consist solely of singers, such as choirs and doo wop, doo-wop groups. In both popular music and classical music, there are ensembles in which both instrumentalists and singers perform, such as the Band (rock and pop), rock band or the Baroque chamber group for basso continuo (harpsichord and cello) and one or more singers. In classical music, trios or quartets either blend the sounds of musical instrument families (such as piano, strings (music), strings, and wind instruments) or group instruments from the same instrument family, such as string ensembles (e.g., string quartet) or wind ensembles (e.g., wind quintet). Some ensembles blend the sounds ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
