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Irrigation Dictionary : Table of Contents (members login required)\t
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Term No.Term NameTerm Description
8670Kalman-filterA linear system in which the mean-squared error between the desired output and the actual output is minimized when the input is a random signal genera.....
8843Kanat, Foggara, Karez (used in Baluchistan), Rhettara (used in Morocco), or Qanat (used in Iran)Subsurface gallery for water supply starting from below the water table and sloping downwards to the ground surface with a gradient flatter than both .....
5511Kankar, Bloc kankar, Nodular kankarA nodular variety of limestone that is of spongy nature, containing some quantity of clayey and siliceous matter. It is found either in layers or bloc.....
5461Kaolin, China clay, or Porcelain clayA white clay, essentially hydrated aluminium silicate, resulting from the decomposition of feldsparic rocks......
5460KaoliniteA group of clay minerals, crystallizing in the monoclinic system, with chemical formula 2SiO2, Al2O3,2H2O and occurring as minute equidimensional flak.....
4516Kaplan pumpA propeller type pump having adjustable blade impeller......
8754Karman street, or Karman vortex trailThe trail of vortices occurring in the wake of a body, after boundary layer separation has taken place......
2133KattekleiA Dutch term. Iron sulphide containing material formed from brackish-water clay as the result of the oxidation of iron sulphate which gave acid and ir.....
8191kbps (kilobits per second)A unit of data rate where 1 kb/s = 1000 bits per second. This contrasts with units of storage where 1 Kb = 1024 bits (note upper case K)......
4335Kelly, or Grief stem The uppermost joint of the drill string, square or hexagonal in cross-section, rather than circular, which permits the string to be rotated by the rot.....
4336Kellydrive bushingA cylindrical connection or drive with two lugs on opposite sides, between the kelly and the drill......
347Kelvin (K)The kelvin, unit of thermodynamic temperature, is the fraction 1/273.16 of the thermodynamic temperature of the triple point of water......
1210Kelvin tubeA device for measuring the depth of water, consisting of a glass tube with a chemical inside fixed in a lead tube. It is thrown into the water and tak.....
3143Kennedy`s equationAn empirical equation that applies to channels with erodible boundaries in alluvial soils carrying small sediment loads expressed as Vo = 0.55 db0.64 .....
3817Kerb inlet, or ScupperApertures at the bottom of the kerb face to dispose of rain water......
3816Kerb, Kirb, Curb, Wheel guards, Fender curbs1 - Raised strips on the sides of the roadway width of a bridge for use by pedestrian traffic and also for confining vehicular traffic within the road.....
8485KernelThe essential part of Unix or other operating systems, responsible for resource allocation, low-level hardware interfaces, security etc. See also micr.....
2553Key wallA cutoff wall extending from the cutoff trench into the bed rock or the impervious subsurface stratum......
2515Key way, or OffsetIndentation or projection of some geometrical shape built or formed into poured surfaces to provide a degree of integral action with subsequent struct.....
8373KeyboardA peripheral device consisting of alphanumerics, punctuation marks, and other special function keys that are mechanically arranged to allow the entry .....
9326Keystone SpeciesA species that has a central servicing role affecting many other organisms and whose demise is likely to result in the loss of a number of species and.....
4454KharbauwyAn Egyptian water lifting device used in areas where the lift is from 0.6 to 1.0 metre. It is an improved paddle wheel worked by animal power. Instead.....
3984Kharif crop (Bangladesh, India and Pakistan)Summer crop or monsoon crop......
4446KiliA term used in India for a system of working the rope-and-bucket lift. In this system, the rope is fastened to the yoke by a wedge and when the cattle.....
737Killing frost, Ground frost (UK)A freezing condition sufficiently injurious to vegetation to end the growing season. In the United Kingdom this is considered to have occurred when a .....
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