Results 1 to 10 of about 2,503,254 (233)

Numerical analysis of hydrogen-assisted rolling-contact fatigue of wind turbine bearings [PDF]

Fracture and Structural Integrity, 2014
Offshore wind parks at locations further from the shore often involve serious difficulties, e.g. the maintenance. The bearings of offshore wind turbines are prone to suffer hydrogen-assisted rolling-contact fatigue (HA-RCF).
J. Toribio , M. Lorenzo , D. Vergara , V. Kharin   +3 more
doaj   +3 more sources

Global Epidemiology of Hip Fractures: Secular Trends in Incidence Rate, Post‐Fracture Treatment, and All‐Cause Mortality

Journal of Bone and Mineral Research, 2023
In this international study, we examined the incidence of hip fractures, postfracture treatment, and all‐cause mortality following hip fractures, based on demographics, geography, and calendar year. We used patient‐level healthcare data from 19 countries
C. Sing, Tzu-Chieh Lin, S. Bartholomew, J. Bell, Corina Bennett, K. Beyene, P. Bosco-Lévy, B. Bradbury, A. Chan, M. Chandran, C. Cooper, M. Ridder, Caroline Y. Doyon, C. Droz-Perroteau, G. Ganesan, S. Hartikainen, Jenni Ilomaki, H. Jeong, D. Kiel, Kiyoshi Kubota, E. Lai, J. Lange, E. Lewiecki, Julian Lin, Jiannong Liu, J. Maskell, M. Abreu, J. O’Kelly, Nobuhiro Ooba, A. Pedersen, A. Prats-Uribe, D. Prieto-Alhambra, S. Qin, Ju-Young Shin, H. Sørensen, K. B. Tan, Tracy Thomas, A. Tolppanen, K. Verhamme, Grace Hsin-Min Wang, S. Watcharathanakij, S. Wood, C. Cheung, I. Wong   +43 more
semanticscholar   +1 more source

Impact-induced damage accumulation at micro- and nanostructural scale levels in sintered powders SiO2, SiC, and Al2O3 and in their single crystal counterparts [PDF]

Science of Sintering, 2016
The acoustic emission (AE) and fractoluminescence (FL) techniques were applied to study the impact damage in sintered powders of SiO2, SiC and Al2O3 and their single crystal counterparts.
Chmel Alexandre, Kadomtsev Andrej, Shcherbakov Igor’   +2 more
doaj   +1 more source

Atomic mechanism of near threshold fatigue crack growth in vacuum

Nature Communications, 2022
It is challenging to understand failure mechanisms under a prolonged low-amplitude loading. Here the authors perform large-scale simulations to better understand the fatigue crack growth mechanism in vacuum, providing an atomic-scale origin for a ...
Mingjie Zhao, Wenjia Gu, Derek H. Warner
doaj   +1 more source

Patient-reported outcome measures after hip fracture in patients with chronic cognitive impairment: results from 34,675 patients in the Norwegian Hip Fracture Register

Bone & Joint Open, 2021
Aims: Hip fracture patients have high morbidity and mortality. Patient-reported outcome measures (PROMs) assess the quality of care of patients with hip fracture, including those with chronic cognitive impairment (CCI).
Malfrid H. Kristoffersen, Eva H. Dybvik, Ole M. Steihaug, Torbjørn B. Kristensen, Lars B. Engesæter, Anette H. Ranhoff, Jan-Erik Gjertsen   +6 more
doaj   +1 more source

Prevalence of Osteoporosis and Fracture in China

JAMA Network Open, 2021
This cross-sectional study evaluates the prevalence of and factors associated with osteoporosis, clinical fractures, and vertebral fractures among adults 40 years or older in mainland China by sex, age group, and urban vs rural residence.
Linhong Wang, Wei Yu, X. Yin, L. Cui, Shunyu Tang, Ning Jiang, L. Cui, Nan Zhao, Qiang Lin, Lin Chen, Hua Lin, Xiao-lan Jin, Zhong Dong, Zeping Ren, Zhulin Hou, Yongqing Zhang, Jieming Zhong, Shunxiang Cai, Yuan Liu, R. Meng, Ying Deng, Xianbin Ding, Jingang Ma, Zhongjian Xie, Lin Shen, Wen Wu, Mengmeng Zhang, Qifeng Ying, Yuhong Zeng, Jin Dong, Steven R Cummings, Zhixin Li, Weibo Xia   +32 more
semanticscholar   +1 more source

Is there a weekend effect after hip fracture surgery? A study of 74,410 hip fractures reported to the Norwegian Hip Fracture Register

Acta Orthopaedica, 2020
Background and purpose — The term “weekend effect” describes differences in outcomes between patients treated at weekends compared with weekdays. We investigated whether there is a weekend effect for the risk of reoperation and mortality after hip ...
Andrea Boutera, Eva Dybvik, Geir Hallan, Jan-Erik Gjertsen   +3 more
doaj   +1 more source

Fractures in Brief: Olecranon Fractures [PDF]

Clinical Orthopaedics & Related Research, 2012
Olecranon fractures are relatively common injuries, accounting for approximately 10% of upper extremity fractures in adults [26]. These fractures may result from a direct blow to the proximal ulna, or indirectly, via the forceful contraction of the triceps against resistance (typically, during a fall onto an outstretched hand).
Laura, Wiegand, Joseph, Bernstein, Jaimo, Ahn   +2 more
openaire   +2 more sources

Hydrogen-Assisted Fatigue Propagation in Corner Cracks at Holes Located in Plates under Tensile Loading

Metals, 2021
In this study, hydrogen-assisted fatigue propagation (a kind of corrosion fatigue phenomenon) in corner cracks at holes located in plates under tensile loading was studied, the results compared with those obtained for propagation by fatigue in air.
Jesús Toribio, Beatriz González, Juan-Carlos Matos   +2 more
doaj   +1 more source

Effect of Indirect Neural Decompression by Minimally Invasive Oblique Lumbar Interbody Fusion in Adult Degenerative Lumbar Spine Disease and Its Limitations [PDF]

Journal of Minimally Invasive Spine Surgery and Technique, 2019
Objective To study efficacy of minimally invasive oblique lumbar interbody fusion (MIS OLIF) to achieve indirect decompression in degenerative lumbar spine disorders.
Nisarg P. Parikh, Manish Mistry, Amit Chandrakant Jhala   +2 more
doaj   +1 more source