physical noise
31Electronic noise — is an unwanted signal characteristic of all electronic circuits. Depending on the circuit, the noise put out by electronic devices can vary greatly. This noise comes from many different electronic effects.Thermal noise and shot noise are inherent …
32Roadway noise — is the collective sound energy emanating from motor vehicles. In the USA it contributes more to environmental noise exposure [Senate Public Works Committee, Noise Pollution and Abatement Act of 1972, S. Rep. No. 1160, 92nd Cong. 2nd session] than …
33Flicker noise — is a type of electronic noise with a 1/f, or pink spectrum. It is therefore often referred to as 1/f noise or pink noise, though these terms have wider definitions. It occurs in almost all electronic devices, and results from a variety of effects …
34Adapted Physical Education — is a sub discipline of physical education. It is an individualized program created for students who require a specially designed program for more than 30 days. The program involves physical fitness, motor fitness, fundamental motor skills and… …
35Mathematics and Physical Sciences — ▪ 2003 Introduction Mathematics Mathematics in 2002 was marked by two discoveries in number theory. The first may have practical implications; the second satisfied a 150 year old curiosity. Computer scientist Manindra Agrawal of the… …
36Signal to noise ratio (image processing) — The Signal to Noise Ratio (SNR) is used in image processing as a physical measure of the sensitivity of an imaging system. Industry standards measure SNR in decibels (dB) and therefore apply the 20 log rule to the pure SNR ratio. In turn,… …
37Extreme physical information — (EPI) is a principle, first described and formulated in 1998 Frieden, B. Roy Physics from Fisher Information: A Unification , 1st Ed. Cambridge University Press, ISBN 0 521 63167 X, pp328, 1998 ( [ref name= Frieden6 ] shows 2nd Ed.)] by B. Roy… …
38Interfering noise — Interfering noises(or interfering sounds) are sounds with a negative sound quality, that is,the sound event leads to a hearing event, which is perceived asunpleasant, disturbing and interfering. This sound event usuallyreleases negative… …
39Pink Noise — Das 1/f Rauschen (auch „Rosa Rauschen“ genannt) bezeichnet ein Rauschen, das mit steigender Frequenz abnimmt. Die Amplitude kann als normalverteilt angesehen werden, der Frequenzgang verläuft umgekehrt proportional zur Frequenz ( 1/f) und die… …
40Working Environment (Air Pollution, Noise and Vibration) Convention, 1977 — Infobox ILO convention code= C148 name= Working Environment (Air Pollution, Noise and Vibration) Convention, 1977 adopt= June 20, 1977 force= July 11, 1979 classify= Physical Hazards, Noise and Vibration subject= Occupational Safety and Health… …
