Results 1 to 10 of about 1,644,884 (307)

Mortality in ST-segment elevation myocardial infarction patients without standard modifiable risk factors: A race disaggregated analysis

International Journal of Cardiology: Heart & Vasculature, 2022
Background: Individuals who present with STEMI without the standard cardiovascular risk factors (SMuRFs) of diabetes, hypercholesterolemia, hypertension, and smoking, coined SMuRF-less are not uncommon.
Saadiq M. Moledina, Ofer Kobo, Hammad Lakhani, Abhishek Abhishek, Purvi Parwani, Annabelle Santos Volgman, Rachel M. Bond, Muhammad Rashid, Gemma A. Figtree, Mamas A. Mamas   +9 more
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Predictors of the effects of treatment for shoulder pain: protocol of an individual participant data meta-analysis

Diagnostic and Prognostic Research, 2019
Background Shoulder pain is one of the most common presentations of musculoskeletal pain with a 1-month population prevalence of between 7 and 26%. The overall prognosis of shoulder pain is highly variable with 40% of patients reporting persistent pain 1 
Danielle A. van der Windt, Danielle L. Burke, Opeyemi Babatunde, Miriam Hattle, Cliona McRobert, Chris Littlewood, Gwenllian Wynne-Jones, Linda Chesterton, Geert J. M. G. van der Heijden, Jan C. Winters, Daniel I. Rhon, Kim Bennell, Edward Roddy, Carl Heneghan, David Beard, Jonathan L. Rees, Richard D. Riley   +16 more
doaj   +1 more source

Fatigue Crack Evaluation with the Guided Wave–Convolutional Neural Network Ensemble and Differential Wavelet Spectrogram

Sensors, 2021
On-line fatigue crack evaluation is crucial for ensuring the structural safety and reducing the maintenance costs of safety-critical systems. Among structural health monitoring (SHM), guided wave (GW)-based SHM has been deemed as one of the most ...
Jian Chen, Wenyang Wu, Yuanqiang Ren, Shenfang Yuan   +3 more
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Research on site selection model for underground coal gasification based on fuzzy evaluation and BP neural network: A case study of Fukang Mining Area, Xinjiang

Meitan xuebao
As a strategic alternative to enhance natural gas reserves and production in China, Underground Coal Gasification (UCG) technology relies heavily on precise geological evaluation and site selection for safe and efficient development. However, traditional
Yu YU, Shuguang YANG, Na ZHANG, Xin LI, Haichao WANG, Shuxun SANG, Zhiwei ZENG, Jijun TIAN, Peng LAI, Jian TAO, Yunxuan LIU   +10 more
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Design of a Large-Scale Piezoelectric Transducer Network Layer and Its Reliability Verification for Space Structures

Sensors, 2020
As an effective structural health monitoring (SHM) technology, the piezoelectric transducer (PZT) and guided wave-based monitoring methods have attracted growing interest in the space field.
Yuanqiang Ren, Jingya Tao, Zhaopeng Xue
doaj   +1 more source

Geological Evaluation of In-Situ Pyrolysis Development of Oil-Rich Coal in Tiaohu Mining Area, Santanghu Basin, Xinjiang, China

Energies
The applicability of the in-situ pyrolysis of oil-rich coal is highly dependent on regional geological conditions. In this study, six major geological factors and 19 key parameters influencing the in-situ pyrolysis of oil-rich coal were systematically ...
Guangxiu Jing, Xiangquan Gao, Shuo Feng, Xin Li, Wenfeng Wang, Tianyin Zhang, Chenchen Li   +6 more
doaj   +1 more source

Guided Wave-Convolutional Neural Network Based Fatigue Crack Diagnosis of Aircraft Structures

Sensors, 2019
Fatigue crack diagnosis (FCD) is of great significance for ensuring safe operation, prolonging service time and reducing maintenance cost in aircrafts and many other safety-critical systems.
Liang Xu, Shenfang Yuan, Jian Chen, Yuanqiang Ren   +3 more
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Sex Differences in Ischemic Stroke Outcomes in Patients With Pulmonary Hypertension

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2021
Background The association between systemic hypertension and cerebrovascular disease is well documented. However, the impact of pulmonary hypertension (PH) on acute ischemic stroke outcomes is unknown despite PH being recognized as a risk factor for ...
Tiberiu A. Pana, Dana K. Dawson, Mohamed O. Mohamed, Fiona Murray, David L. Fischman, Michael P. Savage, Mamas A. Mamas, Phyo K. Myint   +7 more
doaj   +1 more source

Differences in molecular structure and pyrolysis behavior of tar-rich coals influenced by accumulation conditions of coal-forming materials: a comparative study of coals from the Xishanyao Formation and Badaowan Formation in the Santanghu basin

Geomechanics and Geophysics for Geo-Energy and Geo-Resources
The Santanghu Basin in Xinjiang, China, hosts significant tar-rich coal resources, yet marked disparities in tar yields exist between coals derived from the Badaowan and Xishanyao formations, complicating resource exploration and utilization.
Hao Chen, Xin Li, Bo Wei, Lin Meng, Xing-gang Wang, Shuo Feng, Xiao-mei Zhang, Yong Tang, Zi-qiang Wang   +8 more
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Evidence of Aalenian-stage palaeofires in an extremely thick coal seam of the eastern Junggar Basin, Xinjiang, China

Frontiers in Earth Science
Scholars increasingly support the hypothesis that inertinite in coal is the product of incomplete combustion of plants in coal-forming peat swamps during fire events.
Qin Zhang, Shuo Feng, Bo Yang, Xin Li, Wenfeng Wang, Wenfeng Wang, Jijun Tian, Jijun Tian, Xingli Wang   +8 more
doaj   +1 more source