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C Cells
C cell may refer to: Biology and medicine * parafollicular cell, neuroendocrine cells in the thyroid gland which secrete calcitonin Technology * C battery, a common household 1.5 volt dry cell battery * C battery (vacuum tube), a battery used to power vacuum tubes in early electronic devices See also * Cell C Cell C Limited (stylised as Cell ©) is as a private mobile operator based in Sandstone, South Africa. It was founded in November 2001 by Lambert Moloi. As of August 2019, the Company’s current CEO is Douglas Craigie Stevenson Douglas may re ..., a South African cellular phone provider * Cell (other) * C (other) * * {{disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parafollicular Cell
Parafollicular cells, also called C cells, are neuroendocrine cells in the thyroid. The primary function of these cells is to secrete calcitonin. They are located adjacent to the thyroid follicles and reside in the connective tissue. These cells are large and have a pale stain compared with the follicular cells. In teleost and avian species these cells occupy a structure outside the thyroid gland named the ultimobranchial body. Structure Parafollicular cells are pale-staining cells found in small number in the thyroid and are typically situated basally in the epithelium, without direct contact with the follicular lumen. They are always situated within the basement membrane, which surrounds the entire follicle. Development Parafollicular cells are derived from pharyngeal endoderm. Embryologically, they associate with the ultimobranchial body, which is a ventral derivative of the fourth (or fifth) pharyngeal pouch. Parafollicular cells were previously believed to be derived fr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
C Battery
The C battery (C size battery or R14 battery) is a standard size of dry cell battery typically used in medium-drain applications such as toys, flashlights, and musical instruments. As of 2007, C batteries accounted for 4% of alkaline primary battery sales in the United States. In Switzerland as of 2008, C batteries totalled 5.4% of primary battery sales and 3.4% of secondary (rechargeable) battery sales. Properties A C-battery measures length and diameter. The voltage and capacity of a C-size battery depends on the battery chemistry and discharge conditions. The nominal voltage is 1.5V. Alkaline C batteries have a storage capacity up to 8000 mAh while rechargeable NiMH C batteries can hold up to 6000 mAh. Zinc-carbon C batteries usually hold up to 3800 mAh. Compared to the AAA and AA batteries, C-batteries' storage capacities are significantly higher. Standardisation Like the D battery, the C battery size has been standardized since the 1920s.Ron Runkles (ed) ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
C Battery (vacuum Tube)
A generic vacuum_tube.html" ;"title="triode vacuum tube">triode vacuum tube circuit showing "A", "B" and "C" batteries In the early days of electronics, vacuum tube (called ''valves'' in British contexts) devices (such as radios) were powered by battery (electricity), batteries. Each battery had a different designation depending on which tube element it was associated with. Initially, the only such device was a diode with only a filament (cathode) and a plate (anode). Following the direction of electron flow, these electrodes were identified as "A" and "B", respectively and thus the associated batteries were referred to as the "A" and "B" batteries respectively. Later, when the control grid element was added to create the triode tube, it was logically assigned the letter "C" and supplied from a "C" battery. Subsequent addition of further internal elements to improve the performance of the triode did not require an extension to this series of batteries – these elements ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cell C
Cell C Limited (stylised as Cell ©) is as a private mobile operator based in Sandstone, South Africa. It was founded in November 2001 by Lambert Moloi. As of August 2019, the Company’s current CEO is Douglas Craigie Stevenson Douglas may refer to: People * Douglas (given name) * Douglas (surname) Animals * Douglas (parrot), macaw that starred as the parrot ''Rosalinda'' in Pippi Longstocking *Douglas the camel, a camel in the Confederate Army in the American Civi .... Challenger Network Cell C is a mobile operator in South Africa, acting as a disruption and pushing for regulatory changes such as lower and asymmetrical mobile termination rates. A study commissioned by the South African National Treasury and conducted by the University of Johannesburg's Center for Competition, Regulation and Economic Development found that the lower termination rates introduced in 2011. References External links {{South African telecommunication companies Mobile phone companies ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cell (other)
Cell most often refers to: * Cell (biology), the functional basic unit of life Cell may also refer to: Locations * Monastic cell, a small room, hut, or cave in which a religious recluse lives, alternatively the small precursor of a monastery with only a few monks or nuns * Prison cell, a room used to hold people in prisons Groups of people * Cell, a group of people in a cell group, a form of Christian church organization * Cell, a unit of a clandestine cell system, a penetration-resistant form of a secret or outlawed organization * Cellular organizational structure, such as in business management Science, mathematics, and technology Computing and telecommunications * Cell (EDA), a term used in an electronic circuit design schematics * Cell (microprocessor), a microprocessor architecture developed by Sony, Toshiba, and IBM * Memory cell (computing), the basic unit of (volatile or non-volatile) computer memory * Cell, a unit in a database table or spreadsheet, formed by the int ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
