Results 21 to 30 of about 216,626 (261)
An Index for T:wave Pointwise Amplitude Variability Quantification [PDF]
2016 Computing in Cardiology Conference (CinC), 2016 The comparison between the pointwise amplitude of different T-waves provides insight into ventricular repolarization liability. However, T-wave pointwise amplitude variability can be confounded by time-domain variability. We, first, compared two algorithms for removing (warping) time-domain variability, one using the original and another one using a ...
Ramirez, J. +4 more
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Eccentricity Correction of Acoustic Variable Density Logging and Its Application
Cejing jishu, 2023 In order to solve the problems of acoustic wave amplitude reduction and inaccurate cementing quality evaluation caused by the eccentricity of acoustic variable density instrument in logging process, the principle of eccentricity influence of acoustic ...
LIU Dongming +6 more
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ProceedingsIntroduction: The three-period minimal surface (TPMS) structure has great potential in the fields of lightweight and energy absorption due to its high strength, high porosity, and self-supporting characteristics [...]
Xiaofei Ma, Ce Guo, Xiao Wang
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Some Aspects of Variable Amplitude Fatigue [PDF]
International Journal of Metallurgy and Metal Physics, 2019 Fatigue crack growth behavior of selected aluminum alloys under variable amplitude loading is discussed in this study, based principally on experimental observations. The tests include single overloads tests in different environments, and tests using an aircraft wing loading spectrum.
Gwider, Albashir +1 more
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Latin American Journal of Solids and StructuresThis paper focuses on analysis in determining the behaviour of variable amplitude strain signals based on extraction of segments. The constant Amplitude loading (CAL), that was used in the laboratory tests, was designed according to the variable ...
M. F. M. Yunoh +4 more
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Nihon Kikai Gakkai ronbunshu, 2018 In order to design a rotating shaft, it is necessary to investigate the fatigue characteristics under the variable amplitude loading by using a rotating bending fatigue machine.
Toru TAKASE +2 more
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Amplitude Effect in Cepheid Variables [PDF]
Nature, 1945 IN the interesting review1 of the pulsation theory in his George Darwin Lecture of 1943 before the Royal Astronomical Society, Prof. S. Rosseland has indicated the importance of unharmonic oscillations in explaining the Cepheid characteristics, and brought out the effect of the amplitude in lengthening the pulsational period, pointed out by Kluyver2 in
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Three-graviton amplitude in Berkovits–Vafa–Witten variables [PDF]
Physics Letters B, 2002 We compute the three-graviton tree amplitude in Type IIB superstring theory compactified to six dimensions using the manifestly (6d) supersymmetric Berkovits-Vafa-Witten worldsheet variables. We consider two cases of background geometry: the flat space example R6xK3, and the curved example AdS3xS3xK3 with Ramond flux, and compute the correlation ...
Bobkov, K., Dolan, L.
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A two-step multiaxial racetrack filter algorithm for non-proportional load histories [PDF]
Fracture and Structural Integrity, 2017 The recently proposed multiaxial racetrack filter (MRF) is able to deal with general non-proportional multiaxial load histories. While only requiring a single user-defined scalar filter amplitude, the MRF is able to synchronously eliminate non-damaging ...
Marco Antonio Meggiolaro +2 more
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Sulla stima della vita a fatica di giunti saldati soggetti a carichi multiassiali ad ampiezza variabile [PDF]
Fracture and Structural Integrity, 2009 Nel presente articolo viene proposta una nuova metodologia di progettazione a fatica, basata sull’utilizzo del metodo delle Curve di Wöhler Modificate, per la previsione della vita a fatica di giunzioni saldate, sia in acciaio che in alluminio, soggette
R. Tovo, D. Benasciutti, L. Susmel
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