nonlinear variation
91Effet photoréfractif — L´effet photoréfractif, ou photoréfractivité, consiste en une modification locale de l’indice d’un milieu par l’onde lumineuse incidente qui l’éclaire. En conséquence, le faisceau lumineux modifie lui même les conditions de sa propagation. Cette… …
92Photoréfractivité — Effet photoréfractif L´ effet photoréfractif, ou photoréfractivité, consiste en une modification locale de l’indice d’un milieu par l’onde lumineuse incidente qui l’éclaire. En conséquence, le faisceau lumineux modifie lui même les conditions de… …
93Comparison of analog and digital recording — This article compares the two ways in which sound is recorded and stored. Actual sound waves consist of continuous variations in air pressure. Representations of these signals can be recorded using either digital or analog techniques. An analog… …
94Mechanism of sonoluminescence — Sonoluminescence is a phenomenon that occurs when a small gas bubble is acoustically suspended and periodically driven in a liquid solution at ultrasonic frequencies, resulting in bubble collapse, cavitation, and light emission. The thermal… …
95Climate change in the Arctic — Very substantial decrease in Arctic Sea ice in 2007 from 2005 and also from 1979–2000 average …
96El Niño-Southern Oscillation — El Niño redirects here. For other uses, see El Niño (disambiguation). ENSO redirects here. For other uses, see Enso (disambiguation). The 1997 El Niño observed by TOPEX/Poseidon. The white areas off the tropical coasts of South and North America… …
97Multivariate statistics — is a form of statistics encompassing the simultaneous observation and analysis of more than one statistical variable. The application of multivariate statistics is multivariate analysis. Methods of bivariate statistics, for example simple linear… …
98Statistical inference — In statistics, statistical inference is the process of drawing conclusions from data that are subject to random variation, for example, observational errors or sampling variation.[1] More substantially, the terms statistical inference,… …
99Genetic algorithm — A genetic algorithm (GA) is a search heuristic that mimics the process of natural evolution. This heuristic is routinely used to generate useful solutions to optimization and search problems. Genetic algorithms belong to the larger class of… …
100Ronald Fisher — R. A. Fisher Born 17 February 1890(1890 02 17) East Finchley, London …
