Results 71 to 80 of about 2,352,224 (278)
利用导波震相分析阿拉斯加俯冲带东端Yakutat地体的洋壳结构特征
Dizhen xuebao低速俯冲洋壳附近震源激发的部分地震波被困在低速层内以导波传播，弧前地震台站所记录的导波可用于洋壳结构成像。阿拉斯加俯冲带具有丰富的地震事件且布设了相对密集的永久性地震台站，为利用导波探测洋壳结构提供了天然试验场。本文对区域密集台站记录到的阿拉斯加俯冲带东端Yakutat地体两侧中源地震事件的导波震相传播特征进行了深入分析。结果显示：阿拉斯加俯冲带东端的Yakutat地体范围内，受低速俯冲洋壳影响的导波震相到时延迟随传播距离的增大而增加 ...
Xiaoyu Guan, Yuanze Zhou
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Fiber-Optic Sensor-Based Remote Acoustic Emission Measurement in a 1000 °C Environment
Sensors, 2017 Recently, the authors have proposed a remote acoustic emission (AE) measurement configuration using a sensitive fiber-optic Bragg grating (FBG) sensor. In the configuration, the FBG sensor was remotely bonded on a plate, and an optical fiber was used as ...
Fengming Yu, Yoji Okabe
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Arthritis Care &Research, EarlyView.Objective To investigate the association between rheumatoid arthritis (RA) and coronary artery calcium (CAC) prevalence, incidence, and progression over four years in adults without prior cardiovascular disease. Methods A case‐cohort study within the Brazilian Longitudinal Study of Adult Health (ELSA‐Brasil) included 585 participants (86 patients with ...
Patrícia Fonseca Estrada +7 more
wiley +1 more source
Applied Sciences, 2020 The use of mechanic waves for assessing structural integrity is a well-known non-destructive technique (NDT). The ultrasound applied in the guided wave in particular requires significant effort in order to understand the complexities of the propagation ...
Eduardo Becker Groth +4 more
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Anorectal Dysfunction in Systemic Sclerosis: Clinical Phenotypes and Functional Patterns
Arthritis Care &Research, EarlyView.Objective The aim of this study was to characterize specific physiologic defects in anorectal dysfunction in systemic sclerosis (SSc) using anorectal manometry (ARM), evaluate associations with gastrointestinal (GI) and extraintestinal clinical phenotypes, and explore potential serologic markers for risk stratification.
Timothy Kaniecki +6 more
wiley +1 more source
A Graphical Analysis Method of Guided Wave Modes in Rails
Applied Sciences, 2019 The cross-section of a rail has a complex geometry, and there are many propagating modes of ultrasonic guided waves in a rail. The analysis of mode shapes or the cross-sectional wave structure is of high significance to the design of an appropriate wave ...
Xining Xu +4 more
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Arthritis Care &Research, EarlyView.Objective The aim of this study was to test the hypothesis that multijoint osteoarthritis would modify the relation between time and frailty progression, in which more affected joints would lead to larger declines over six years compared to those without osteoarthritis using data from the Canadian Longitudinal Study on Aging.
Carson Halliwell +2 more
wiley +1 more source
A Blueprint for Ocean Energy Development 2010-2015 [PDF]
In an effort to foster a collaborative approach to advancing the ocean energy industry, OWET convened the OWET 2010 Developersʼ Summit on September 27 and 28, 2010 in Portland, Oregon.
Oregon Wave Energy Trust
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Sensors, 2014 The non-contact magnetostrictive sensor (MsS) has been widely used in the guided wave testing of pipes, cables, and so on. However, it has a disadvantage of low excitation efficiency.
Pengfei Sun +3 more
doaj +1 more source