Search results
Results From The WOW.Com Content Network
Fin (extended surface) In the study of heat transfer, fins are surfaces that extend from an object to increase the rate of heat transfer to or from the environment by increasing convection. The amount of conduction, convection, or radiation of an object determines the amount of heat it transfers. Increasing the temperature gradient between the ...
Expectation–maximization algorithm. In statistics, an expectation–maximization ( EM) algorithm is an iterative method to find (local) maximum likelihood or maximum a posteriori (MAP) estimates of parameters in statistical models, where the model depends on unobserved latent variables. [1] The EM iteration alternates between performing an ...
Peg (unit) A peg is a unit of volume, typically used to measure amounts of liquor in the Indian subcontinent. Informally, a peg is an undefined measure of any alcoholic drink poured in a glass. The terms "large (badda) peg" and "small (chota) peg" are equal to 60 ml and 30 ml, respectively, [1] with "peg" alone simply referring to a 60 ml peg. [2]
In the study of differential equations, a boundary-value problem is a differential equation subjected to constraints called boundary conditions. [1] A solution to a boundary value problem is a solution to the differential equation which also satisfies the boundary conditions. Boundary value problems arise in several branches of physics as any ...
Ampère's circuital law. Bernoulli's equation. Bogoliubov–Born–Green–Kirkwood–Yvon hierarchy of equations. Bessel's differential equation. Boltzmann equation. Borda–Carnot equation. Burgers' equation. Darcy–Weisbach equation. Dirac equation.
Molar concentration (also called molarity, amount concentration or substance concentration) is a measure of the concentration of a chemical species, in particular, of a solute in a solution, in terms of amount of substance per unit volume of solution. In chemistry, the most commonly used unit for molarity is the number of moles per liter ...
A rocket's required mass ratio as a function of effective exhaust velocity ratio. The classical rocket equation, or ideal rocket equation is a mathematical equation that describes the motion of vehicles that follow the basic principle of a rocket: a device that can apply acceleration to itself using thrust by expelling part of its mass with high velocity and can thereby move due to the ...
Planck–Einstein equation and de Broglie wavelength relations. P = ( E/c, p) is the four-momentum, K = (ω/ c, k) is the four-wavevector, E = energy of particle. ω = 2π f is the angular frequency and frequency of the particle. ħ = h /2π are the Planck constants. c = speed of light.