Laboratory measurement of noise generation by shoaling breakers
نویسندگان
چکیده
منابع مشابه
NOISE: Measurement and Generation
It is difficult to improve something unless we are able to measure it. Measurement of noise in receivers does not seem to be clearly understood by many amateurs, so I will attempt to explain the concepts and clarify the techniques, and to descrive the standard “measure of merit” for receiver noise performance: “noise figure.” Most important, I will describe how to build your own noise generator...
متن کاملIdentification of static distortion by noise measurement
ELECT Many active devices exhibit gross nonlinearity, which is traditionally mitigated using negative feedback. In those cases where negative feedback is not desired, compensation for the distortion can be carried out at the postprocessing stage by inverting the transfer function of the device. A new technique is demonstrated where the inherent noise in the system is exploited to estimate the r...
متن کاملGeneration of Blue Noise Arrays by Genetic
Halftoning or quantizing by means of a threshold array is simple, fast, and easily parallelized: a matrix of threshold values is tiled across the image and each output pixel is colored white if the image value exceeds the threshold value and is colored black otherwise. The computational eeciency and locality of the compare operation makes this technique suitable for applications in printing and...
متن کاملnoise-induced stress assessment by salivary cortisol measurement
background noise exposure is known as a risk factor for hearing loss and one of its effects is noise-induced stress. cortisol as a stress hormone is used in noise-induced stress assessments. objectives the aim of this study was to measure and compare saliva cortisol concentrations in the morning and evening in normal work day and rest day in both case and control groups and to assess the associ...
متن کاملNoise generation by turbulent flow in ducts
The aim of this work is to estimate the sound power generated by a turbulent flow in a duct from the knowledge of mean quantities which can be computed with a K-e turbulence model when only the plane wave can propagate, i.e., when the characteristic frequency of the turbulence is low. It does turn out to be possible for the simplest configuration of a duct free of internal obstruction. The resu...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Acoustics Research Letters Online
سال: 2005
ISSN: 1529-7853
DOI: 10.1121/1.1839611