Results 251 to 260 of about 2,816,092 (285)

A PHASE‐CONTRAST MICROSCOPE WITH VARIABLE AMPLITUDE AND PHASE

Journal of the Royal Microscopical Society, 1950
SYNOPSIS.A phase‐contrast microscope is described in which the properties of polarized light are employed in order to vary the relative amplitudes and phases of the direct and diffracted beams over a wide range. The two beams, which are plane polarized, have their vibration directions rendered orthogonal by passage through a quartz phase plate.
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The Significance of Variable Amplitude Fatigue Testing

1994
Experimental fatigue and durability assessment plays a prominent role in light-weight design. There is broad evidence, however, that the fatigue strength of materials and structures determined under constant amplitude loading may be not relevant—quantitatively or even qualitatively—for variable amplitude or spectrum loading. Various phenomena both on a
D Schütz, P Heuler
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NDVI seasonal amplitude and its variability

International Journal of Remote Sensing, 2008
NDVI (Normalized Difference Vegetation Index) is a remotely sensed index of vegetation greenness.
Y. Julien, J. A. Sobrino
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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.
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Unraveling the Science of Variable Amplitude Fatigue

Journal of ASTM International, 2011
Abstract Conventional methods to estimate variable-amplitude fatigue life revolve either around cumulative damage analysis using the local stress-strain approach, or, around one of the crack growth load interaction models. Despite advances in modeling the mechanics of fatigue, none of these methods can faithfully reproduce the near ...
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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 ...
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Lensless complex amplitude demodulation based on deep learning in holographic data storage

Opto-Electronic Advances, 2023
Jianying Hao, Xiaodi Tan, Guohai Situ
exaly  

Large amplitude oscillatory shear flow: Microstructural assessment of polymeric systems

Progress in Polymer Science, 2022
Giovanniantonio Natale, Simon A. Rogers
exaly  

Full Complex-Amplitude Engineering by Orientation-Assisted Bilayer Metasurfaces

Advanced Optical Materials, 2023
Guoxing Zheng, Liangui Deng
exaly  

On the utility of P3 amplitude as a measure of processing capacity

Psychophysiology, 2001
Albert Kok
exaly