Results 261 to 270 of about 927,137 (277)

Relation of Alpha Frequency to Amplitude Variability

Perceptual and Motor Skills, 1968
Kleitman (4) has suggested that the frequency of the alpha EEG partern is related to level of consciousness. He presented studies which showed a decrease in alpha frequency during sensory isolation, an increase in alpha frequency in hyperthermia, a decrease in alpha frequency associated with hypothyroidism, and an association of alpha frequency and ...
openaire   +2 more sources

Variable Amplitude Fatigue Life Estimation Models

SAE Technical Paper Series, 1982
<div class="htmlview paragraph">This paper reviews fatigue life estimation techniques. The methods are the result of many researchers and practicing engineers. No attempt is made to cite individual contributions. A bibilography of useful sources of information is included.</div>
openaire   +1 more source

Prediction uncertainties at variable amplitude fatigue

International Journal of Fatigue, 1997
Abstract Predictions of variable amplitude fatigue life suffer from uncertainties originating from different sources. In this paper, important sources are discussed and estimated, by means of a variable amplitude fatigue model, based on level crossing counts and a version of the Palmgren–Miner cumulative damage rule.
openaire   +1 more source

Cyclic plasticity and variable amplitude fatigue

International Journal of Fatigue, 2003
Load history effects are observed both in cyclic plasticity and during fatigue crack growth. History effects in cyclic plasticity of bulk material are inherited from material strain hardening (isotropic and kinematic hardening). Kinematic hardening is usually attributed to the development of plastic strain gradients inside the material.
openaire   +1 more source

Are resonance decay amplitudes Gaussian variables?

Zeitschrift f�r Physik A Atoms and Nuclei, 1984
Higher moments of Gaussian statistical variables can be expressed in terms of second moments. Such relations can be experimentally tested on resonance decay amplitudes. In the present paper, the error of such a test is derived. The error is due to the finite numberN of resonances analyzed.
openaire   +1 more source

Methodology of Variable Amplitude Fatigue Tests

1989
Fatigue life prediction by experiment, that is variable amplitude testing, is becoming more and more widespread in industry. The many engineering decisions necessary before a useful variable amplitude test can be carried out are explained in detail, such as measurement of the stress time history in service which couting procedure to use and ...
openaire   +1 more source

Reinforcement of variability in saccadic amplitude

2009
no ...
Paeye, Céline, Rahmouni, S., Madelain, Laurent   +2 more
openaire   +1 more source

Variable Amplitude Fatigue

Jin-Chao He, Shun-Peng Zhu, Qingyuan Wang   +2 more
openaire   +1 more source

FATIGUE IN CFRP UNDER VARIABLE AMPLITUDE LOADING

1983
DE IORIO, ANTONIO, S. Mignosi, M. Schiavone   +2 more
openaire   +2 more sources

Variable amplitude loading and testing

2006
openaire   +1 more source