Results 31 to 40 of about 5,095,342 (309)

Hip fracture risk assessment: Artificial neural network outperforms conditional logistic regression in an age- and sex-matched case control study [PDF]

, 2013
Copyright @ 2013 Tseng et al.; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution,
Li-Wei Hung, Shieh, J-S, Abbod, MF, Wo-Jan Tseng, Jinn Lin, Hung, L-W, Jiann-Shing Shieh, Maysam F Abbod, Tseng, Wo-Jan, Tseng, W-J, Lin, J   +10 more
core   +2 more sources

A Fracture Mechanics-based Method for Prediction of Cracking of Circular and Elliptical Concrete Rings under Restrained Shrinkage [PDF]

, 2014
This article has been made available through the Brunel Open Access Publishing Fund.A new experimental method, utilizing elliptical ring specimens, is developed for assessing the likelihood of cracking and cracking age of concrete subject to restrained ...
Dong, W, Wu, Z, Zhou, X
core   +1 more source

Fracture toughness characterization of thin Ti/SiC composites [PDF]

, 2011
Titanium based alloys reinforced uniaxially with silicon carbide fibres (Ti/SiC) are advanced and innovative materials for aerospace vehicles.
Ma, Wei
core   +3 more sources

rahulprabhakaran/Fracture-Graphs:

, 2021
Code supplement to the manuscript, "Prabhakaran et al (2021), Large-scale fracture network patterns: Insights from automated mapping in the Lilstock (Bristol Channel) limestone ...
rahulprabhakaran
core   +1 more source

Study on Deliverability Evaluation of Staged Fractured Horizontal Wells in Tight Oil Reservoirs

Energies, 2021
At present, the existing deliverability evaluation models mainly consider the impact of specific factors on production, and the description of the complex fracture network structure primarily remains at the stage of an ideal dual-pore medium with uniform
Siyu Liu, Shengchun Xiong, Dingwei Weng, Peng Song, Rou Chen, Ying He, Xuewei Liu, Shasha Chu   +7 more
doaj   +1 more source

Effect of uneven distribution of proppant in fracture network on exploitation dynamic characteristics

工程科学学报, 2020
Proppant injection during hydraulic fracturing is to prevent the closure of hydraulic fractures. As a result, the distribution of proppant in the fracture impact the productivity to a great extent.
Wei-yao ZHU, Qi-tao ZHANG, Ming YUE, Liao-yuan ZHANG   +3 more
doaj   +1 more source

Experimental study on characterization hydraulic fracturing coal fracture network and evolution of fracture forming performance

Meitan kexue jishu, 2023
The accurate characterization of coal fracture network can effectively evaluate the fracturing effect of the deep coal seam after hydraulic fracturing.
Changbao JIANG, Yinlan FU, Guangqi WANG
doaj   +1 more source

Evidence for gas hydrate-filled fractures forming at the sulfate-methane transition zone, Hikurangi subduction margin, New Zealand

Frontiers in Earth Science
Using high-resolution X-ray computed tomography (X-CT) of sediment cores from International Ocean Discovery Program Expedition 372 offshore New Zealand, we identify a network of near-vertical, low-density structures interpreted as relics of gas hydrate ...
Morgane Brunet, Morgane Brunet, Ann Cook, Saffron Martin, Joshu Mountjoy   +4 more
doaj   +1 more source

Numerical Study of Fracture Network Evolution during Nitrogen Fracturing Processes in Shale Reservoirs

Energies, 2018
This paper develops a numerical model to study fracture network evolution during the nitrogen fracturing process in shale reservoirs. This model considers the differences of incompressible and compressible fluids, shear and tensile failure modes, shale ...
Xiangxiang Zhang, Jianguo Wang, Feng Gao, Xiaolin Wang   +3 more
doaj   +1 more source

Fracture of model end-linked networks

Proceedings of the National Academy of Sciences, 2022
Significance Fracture of polymer networks is molecular in nature as chains must rupture for a crack to propagate. Predicting macroscopically measured fracture properties from molecular parameters a priori has remained elusive, even for well-defined networks.
Christopher W. Barney, Ziyu Ye, Ipek Sacligil, Kelly R. McLeod, Han Zhang, Gregory N. Tew, Robert A. Riggleman, Alfred J. Crosby   +7 more
openaire   +2 more sources