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Shunt Vaults
Shunt may refer to: * Shunt (medical), a hole or passage allowing fluid to move from one part of the body to another * Shunt (electrical), a device allowing electric current to pass around a point in a circuit * Shunt, a British term for rear-end collision of road vehicles * Shunt (railway operations), sorting items of rolling stock into trains, also called "switching" * Shunt (sailing), a maneuver for sailing upwind on reversible single-outrigger boats * Shunt (theatre company), an experimental theatre company based in London * Shunt, an alternative metabolic pathway In biochemistry, a metabolic pathway is a linked series of chemical reactions occurring within a cell. The reactants, products, and intermediates of an enzymatic reaction are known as metabolites, which are modified by a sequence of chemical reac ... * Shunt, a house robot in the TV series ''Robot Wars'' {{disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shunt (medical)
In medicine, a shunt is a hole or a small passage that moves, or allows movement of, fluid from one part of the body to another. The term may describe either congenital or acquired shunts; acquired shunts (sometimes referred to as iatrogenic shunts) may be either biological or mechanical. __TOC__ Types * Cardiac shunts may be described as right-to-left, left-to-right or bidirectional, or as systemic-to-pulmonary or pulmonary-to-systemic. * Cerebral shunt: In cases of hydrocephalus and other conditions that cause chronic increased intracranial pressure, a one-way valve is used to drain excess cerebrospinal fluid from the brain and carry it to other parts of the body. This valve usually sits outside the skull but beneath the skin, somewhere behind the ear. Cerebral shunts that drain fluid to the peritoneal cavity (located in the upper abdomen) are called ''ventriculoperitoneal'' (''VP'') shunts. * Lumbar-peritoneal shunt (a.k.a. ''lumboperitoneal'', ''LP''): In cases of chronic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shunt (electrical)
In electronics, a shunt is a device that creates a low- resistance path for electric current, to allow it to pass around another point in the circuit.Rudolf F. Graf, ''Modern dictionary of Electronics'', Mc-Graw Hill, 1968 Library of Congress 68-13873 ''Shunt'' page 454. The origin of the term is in the verb 'to shunt' meaning to turn away or follow a different path. Defective device bypass One example is in miniature Christmas lights which are wired in series. When the filament burns out in one of the incandescent light bulbs, the full line voltage appears across the burnt out bulb. A shunt resistor, which has been connected in parallel across the filament before it burnt out, will then short out to bypass the burnt filament and allow the rest of the string to light. If too many lights burn out however, a shunt will also burn out, requiring the use of a multimeter to find the point of failure. Photovoltaics In photovoltaics, the term is widely used to describe an ''unwan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rear-end Collision
A rear-end collision (often called simply rear-end or in the UK a shunt) occurs when a vehicle crashes into the one in front of it. Common factors contributing to rear-end collisions include driver inattention or distraction, tailgating, panic stops, and reduced traction due to wet weather or worn pavement. Rear-end rail collisions occur when a train runs into the end of a preceding train. According to the National Highway Safety Administration (NHTSA), rear-end collisions account for only 6% of fatal automobile crashes. However, they account for 28% of all automobile accidents, making them one of the most frequent types of automobile accidents in the United States. Overview Typical scenarios for rear-ends are a sudden deceleration by the first car (for example, to avoid someone crossing the street) so that the driver behind it does not have time to brake and collides with it. Alternatively, the following car may accelerate more rapidly than the leading one (for example, lea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shunt (railway Operations)
Shunting, in railway operations, is the process of sorting items of rolling stock into complete trains, or the reverse. In the United States this activity is known as switching. Motive power Motive power is normally provided by a locomotive known as a ''shunter'' (in the UK) or switcher (in the US). Most shunter/switchers are now diesel-powered but steam and even electric locomotives have been used. Where locomotives could not be used (e.g. because of weight restrictions) shunting operations have in the past been effected by horses or capstans. Hazards Coupling The terms "shunter" and "switcher" are applied not only to locomotives but to employees engaged on the ground with shunting/switching operations. The task of such personnel is particularly dangerous because not only is there the risk of being run over, but on some railway systems—particularly ones that use buffer-and-chain/screw coupling systems—the shunters have to get between the wagons/carriages in order to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shunt (sailing)
The crab claw sail is a fore-and-aft triangular sail with spars along upper and lower edges. The crab claw sail was first developed by the Austronesian peoples some time around 1500 BC. It is used in many traditional Austronesian cultures in Island Southeast Asia, Micronesia, Island Melanesia, Polynesia, and Madagascar. Due to its extraordinary performance and ease of operation, it has also become very popular in modern sport sailing. It is sometimes known as the Oceanic lateen or the Oceanic sprit, even though it is not restricted to Oceania, is neither a lateen sail nor a spritsail, and has an independent older origin. History Crab-claw sails were invented by the Austronesians somewhere in Island Southeast Asia at no later than 1500 BCE. It was derived from a more ancient mast-less V-shaped square rig consisting simply of a square or triangular sail on two spars perpendicular to the hull converging at the base. It spread with the Austronesian migration to Micronesia, Island ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shunt (theatre Company)
Shunt is a London-based performance collective, founded in 1998. Most of the co-founders of Shunt met at Central School of Speech and Drama in London on the Advanced Theatre Practice MA in 1997/1998, which specializes in collaborative practice. In summer 1998 Shunt's final term show 'Twist' was taken to Hill Street Theatre for the Edinburgh Festival under the company name Stephanie's Fridge. The members of the company at that time were David Rosenberg, Lizzie Clachan, Louise Mari, Mischa Twitchin, Gisele Edwards, Su Jin Lee, Laura Cockcroft, Catherine Bowman Shaw, Kirsty Yuill, Hannah Ringham, Serena Bobowski, Gemma Brockis and Heather Uprichard. Shunt's work is centered on immersive, site-specific performance, usually in a grand scale, and has been supported by Britain's Royal National Theatre, NESTA (the National Endowment for Science, Technology and the Arts) and Arts Council England. Shows and projects ''The Ballad of Bobby Francois'' "On October 12th, 1972, a Fairchild F-2 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metabolic Pathway
In biochemistry, a metabolic pathway is a linked series of chemical reactions occurring within a cell. The reactants, products, and intermediates of an enzymatic reaction are known as metabolites, which are modified by a sequence of chemical reactions catalyzed by enzymes. In most cases of a metabolic pathway, the product of one enzyme acts as the substrate for the next. However, side products are considered waste and removed from the cell. These enzymes often require dietary minerals, vitamins, and other cofactors to function. Different metabolic pathways function based on the position within a eukaryotic cell and the significance of the pathway in the given compartment of the cell. For instance, the, electron transport chain, and oxidative phosphorylation all take place in the mitochondrial membrane. In contrast, glycolysis, pentose phosphate pathway, and fatty acid biosynthesis all occur in the cytosol of a cell. There are two types of metabolic pathways that are character ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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