Definiciones con K

K truss: A building truss in the form of a K due to the orientation of the vertical member and two oblique members in each panel.

Kalman filter: A 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 generated by white noise.

Kapitza balance: A magnetic balance for measuring susceptibilities of materials in large magnetic fields that are applied for brief periods.

Kapitza expander: Reciprocating-piston gas expander used for helium liquefaction, relies on close fit rather than packing or rings on the pistons.

Kaplan turbine: A propeller-type hydraulic turbine in which the positions of the runner blades and the wicket gates are adjustable for load change with sustained efficiency.

Karrer method: An industrial method for the chemical synthesis of riboflavin.

Kata thermometer: An alcohol thermometer used to measure low velocities in air circulation, by heating the large bulb of the thermometer above 100°F (38°C) and noting the time it takes to cool from 100 to 95°F (38 to 35°C) or some other interval above ambient temperature,

Kater's reversible pendulum: A gravity pendulum designed to measure the acceleration of gravity and consisting of a body with two knife-edge supports on opposite sides of the center of mass.

Kauertz engine: A type of cat-and-mouse rotary engine in which the pistons are vanes which are sections of a right circular cylinder, two pistons are attached to one rotor so that they rotate with constant angular velocity, while the other two pistons are controlled by a

Kelvin absolute temperature scale: A temperature scale in which the ratio of the temperatures of two reservoirs is equal to the ratio of the amount of heat absorbed from one of them by a heat engine operating in a Carnot cycle to the amount of heat rejected by this engine to the other rese

Kelvin body: An ideal body whose shearing (tangential) stress is the sum of a term proportional to its deformation and a term proportional to the rate of change of its deformation with time. Also known as Voigt body.

Kelvin bridge: A specialized version of the Wheatstone bridge network designed to eliminate, or greatly reduce, the effect of lead and contact resistance, and thus permit accurate measurement of low resistance. Also known as double bridge, Kelvin network, Thomson bridge

Kelvin equation: An equation giving the increase in vapor pressure of a substance which accompanies an increase in curvature of its surface, the equation describes the greater rate of evaporation of a small liquid droplet as compared to that of a larger one, and the great

Kelvin network: NULL

Kelvin scale: The basic scale used for temperature definition, the triple point of water (comprising ice, liquid, and vapor) is defined as 273.16 K, given two reservoirs, a reversible heat engine is built operating in a cycle between them, and the ratio of their temper

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