Results 31 to 40 of about 1,741,299 (263)

Monitoring of Fatigue Crack Propagation by Damage Index of Ultrasonic Guided Waves Calculated by Various Acoustic Features

Applied Sciences, 2019
Under cyclic and repetitive loads, fatigue cracks can be further propagated to a crucial level by accumulation, causing detrimental effects to structural integrity and potentially resulting in catastrophic consequences.
Hashen Jin, Jiajia Yan, Weibin Li, Xinlin Qing   +3 more
doaj   +1 more source

RFID-Based Crack Detection of Ultra High-Performance Concrete Retrofitted Beams

Sensors, 2019
Ultra-high-performance concrete (UHPC) is a novel material with multiple known uses and many still yet to be discovered. Recently, the use of encasing welded shear studs in UHPC on the web of corroded steel beams was developed.
Benjamin Bruciati, Shinae Jang, Pierre Fils   +2 more
doaj   +1 more source

Quantitative Limit State Assessment of a 3-Inch Carbon Steel Pipe Tee in a Nuclear Power Plant Using a Damage Index

Energies, 2020
Seismic motions are likely to cause large displacements in nuclear power plants because the main mode of their piping systems is dominated by the low-frequency region.
Sung-Wan Kim, Da-Woon Yun, Sung-Jin Chang, Dong-Uk Park, Bub-Gyu Jeon   +4 more
doaj   +1 more source

Hole-Edge Corrosion Expansion Monitoring Based on Lamb Wave

Metals, 2020
Corrosion is a critical issue for engineered metallic components in mechanical and aerospace industries. Due to the complexity of aerospace aluminum alloy structure, corrosion is particularly tend to occur and expand in stress concentration areas, such ...
Xiangyu Wang, Wei Dai, Duo Xu, Weifang Zhang, Yunmeng Ran, Rongqiao Wang   +5 more
doaj   +1 more source

Heart rate variability and target organ damage in hypertensive patients [PDF]

, 2012
Background: We evaluated the association between linear standard Heart Rate Variability (HRV) measures and vascular, renal and cardiac target organ damage (TOD).
2003 European Society of Hypertension, A Garcia-Garcia, A Kluttig, A Musialik-Lydka, A Shehab, AI Vinik, AL Goldberger, AS Levey, B Dahlof, D Sahn, DH O'Leary, DJ Brotman, DW Kitzman, EB Schroeder, Expert Panel on Detection, Evaluation, and Treatment of High Blood Cholesterol in Adults, G de Simone, G Ferrari, G Iaccarino, G Lembo, G Mancia, G Martini, G Parati, GN Arbolishvili, JF Thayer, K Jensen-Urstad, K Oikawa, KH Tseng, L Pecchia, L Pecchia, LE Chambless, Leandro Pecchia, LM Ueno, Lomb, M Hollander, M Malik, M Zabalgoitia, MW Lorenz, N De Luca, N de Luca, Nicola De Luca, P Alter, P Chandra, P Hamilton, P Melillo, P Melillo, P Melillo, Paolo Melillo, R Izzo, Raffaele Izzo, RB Devereux, RB Devereux, RF Berntsen, RM Lang, S Kodituwakku, S Yusuf, U Rajendra Acharya, Z Bajko   +56 more
core   +4 more sources

Development of Seismic Fragility Function for Underground Railway Station Structures in Korea

Buildings
This study describes the methodology employed to construct a seismic fragility function based on a pre-existing numerical model tailored for underground stations.
Sun Yong Kwon, Jongkwan Kim, Dongyoup Kwak, Seunghoon Yang, Mintaek Yoo   +4 more
doaj   +1 more source

Damage Evolution of Frozen-Thawed Granite Based on High-Resolution Computed Tomographic Scanning

Frontiers in Earth Science, 2022
Freeze-thaw damage of rocks is one of significant natural causes for geo-hazards such as collapse and rockfall in alpine areas. To explore damage evolution in granite in a freeze-thaw environment, specimens of granite in Nyingchi Prefecture, Tibet, China
Bo Li, Bo Li, Guanghua Zhang, Gang Wang, Gang Wang, Jiaxing Qiao   +5 more
doaj   +1 more source

Early renal damage assessed by the SLICC/ACR damage index is predictor of severe outcome in lupus patients in Pakistan [PDF]

, 2010
We investigated Patients with systemic lupus erythematosus with the objective of assessing whether early damage accrued in systemic lupus erythematosus as measured by the SLICC/ACR Damage Index predicts mortality in lupus Patients that have been followed
Ahmad, A., Ahmed, Bilal, Habib, H. B., Islam, M., Merchant, D., Rabbani, M. A., Shah, S. M. A., Tahir, S.   +7 more
core   +1 more source

Ship–Bridge Collision Real-Time Alarming Method Based on Cointegration Theory

Sensors
Ship–bridge collisions in inland waterways pose a serious threat to bridge infrastructure, often resulting in structural damage and jeopardizing safety.
Wanwen Zhong, Deling Liu, Chunhui Xie, Kuijun Zhang, Wenkai Zhan, Maosen Cao, Yufeng Zhang   +6 more
doaj   +1 more source

Correlating low energy impact damage with changes in modal parameters: a preliminary study on composite beams [PDF]

, 2009
This paper is an experimental study of the effects of multi-site damage on the vibration response of a composite beam damaged by low energy impact. The variation of the modal parameters with different levels of impact energy and density of impact is ...
Amir Shahdin, Amraoui, M.Y., Arkaduiz, J.Z., Cheraghi, N., Colakoglu, M., Iglesias, A.M., Joseph Morlier, Li, V.C., Linder, D.K., Morlier, J., Richardson, M.H., Richardson, M.H., Tsai, S.W., Yves Gourinat   +13 more
core   +3 more sources