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• Variable length intake manifold — (VLIM) is an automobile engine manifold technology. As the name implies, VLIM can vary the length of the intake tract in order to optimize power and torque, as well as provide better fuel efficiency.There are two main effects of variable intake… …   Wikipedia

• Variable compression ratio — is the technology to adjust internal combustion engine cylinder compression ratios on the fly. This is done to increase fuel efficiency while under varying loads. Higher loads require lower ratios to be more efficient and vice versa. Variable… …   Wikipedia

• Mixture distribution — See also: Mixture model In probability and statistics, a mixture distribution is the probability distribution of a random variable whose values can be interpreted as being derived in a simple way from an underlying set of other random variables.… …   Wikipedia

• Mixture model — See also: Mixture distribution In statistics, a mixture model is a probabilistic model for representing the presence of sub populations within an overall population, without requiring that an observed data set should identify the sub population… …   Wikipedia

• Mixture density — In statistics, a mixture density is a probability density function which is a convex combination of other probability density functions.Consider a probability density function p ( x , a ) for a variable x , parameterized by a . That is, for each… …   Wikipedia

• Variable Seedeater — Taxobox name = Variable Seedeater image width = 240px image caption = A male from near Panama City, Panama. status = LC status system = iucn3.1 regnum = Animalia phylum = Chordata classis = Aves ordo = Passeriformes familia = Thraupidae genus =… …   Wikipedia

• Mixture density — Densité mélange En statistiques, on appelle densité mélange, ou loi mélange une fonction de densité qui est issue d une combinaison linéaire de plusieurs fonctions de densité. En prenant une fonction f(x,θ), densité d une variable aléatoire x… …   Wikipédia en Français

• Dummy variable (statistics) — In statistics and econometrics, particularly in regression analysis, a dummy variable (also known as an indicator variable) is one that takes the values 0 or 1 to indicate the absence or presence of some categorical effect that may be expected to …   Wikipedia

• Continuous variable valve timing — offers a unique ability to have independent control of the intake and exhaust valves in an internal combustion engine. For any engine load criteria, the timing of intake and exhaust can be independently programmed [1]. The main variations of… …   Wikipedia

• Latent variable model — A latent variable model is a statistical model that relates a set of variables (so called manifest variables ) to set of latent variables. It is assumed that 1) the responses on the indicators or manifest variables are the result of an individual …   Wikipedia

• Semi-Variable Cost — A cost composed of a mixture of fixed and variable components. Costs are fixed for a set level of production or consumption, becoming variable after the level is exceeded. Also known as a semi fixed cost. This type of cost is variable in the… …   Investment dictionary