Results 11 to 20 of about 4,679,228 (305)

Fracture propagation model accounting for intersection among hydraulic fractures and natural fractures in three-dimensional space

Meitan xuebao
Due to development of a large number of natural fractures in unconventional gas and oil reservoirs, the fracture expansion patterns during hydraulic fracturing are complicated. It is crucial to clarify the intersecting and expanding mechanical mechanisms
Yuwei LI, Yanru YANG, Aiwen WANG, Lianpeng DAI   +3 more
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Proximal humeral fractures with a severe varus deformity treated by fixation with a locking plate [PDF]

, 2010
We treated 47 patients with a mean age of 57 years (22 to 88) who had a proximal humeral fracture in which there was a severe varus deformity, using a standard operative protocol of anatomical reduction, fixation with a locking plate and supplementation ...
B. Olabi, J. R. Wylie, Robinson, C M, M. A. Akhtar, Akhtar, M A, C. M. Robinson, Wylie, J R, Dempster, N J, K. T. M. Seah, Ray, A G, A. G. Ray, Olabi, B, Seah, K T M, N. J. Dempster   +13 more
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Simulation of Fracturing and Well Pattern Optimization of Fractured Tight Sandstone Reservoirs

Frontiers in Earth Science, 2022
The fracturing and well pattern optimization of fractured reservoirs is a hot spot in petroleum engineering. In this study, taking the tight oil reservoirs of the Yanchang Formation in the Ordos Basin as an example, an optimized plan of hydraulic ...
Jianbo Liao, Zhongyi Zhang, Haizhong Tang, Jun Yang, Xiaolei Zhang, Bing Wang   +5 more
doaj   +1 more source

The epidemiology of fractures in England [PDF]

, 2008
Introduction: Fractures are a considerable public health burden in the United Kingdom but information on their epidemiology is limited. Objective: This study aims to estimate the true annual incidence and lifetime prevalence of fractures in England ...
Reckless, IP, Mindell, J.S., Reckless, I.P., Shelton, N.J., Donaldson, LJ, Donaldson, L.J., Scholes, S, Scholes, S., Mindell, JS, Shelton, NJ   +9 more
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Bone fractures after menopause [PDF]

, 2010
Every year 30% of individuals above age 65 fall, and falls are the principal cause of bone fractures. To reduce fracture incidence requires both prevention of falls and maintenance of bone strength.PubMed searches were performed, for studies of the ...
Ralston, Stuart H., J. L. Evers, Baird, D. T., A. Volpe, Ralston, S.H., Brandi, M.L., G. Benagiano, Brandi, Maria Luisa, S. H. Ralston, P.G. Crosignani, P. Bouchard, Rizzoli, R., ESHRE Capri Workshop Grp, Barlow, David H., La Vecchia, C., Negri, E., M. L. Brandi, P. G. Crosignani, Rizzoli, Rene, Benagiano, G., S. E. Papapoulos, Evers, J.L.H., D. H. Barlow, J. Collins, C. La Vecchia, Baird, D.T., Negri, Eva, Crosignani, P. G., Papapoulos, Socrates E., Glasier, A., R. Rizzoli, Barlow, D.H., A. Glasier, Vecchia, C. la, Collins, J., D. T. Baird, Volpe, A., Bouchard, P., Crosignani, P.G., Bouchard, Philippe, ?, ?, Papapoulos, S.E., E. Negri, Evers, J. L. H.   +43 more
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The Natural Fracture of Flint [PDF]

Nature, 1912
SIR E. RAY LANKESTER, K.C.B., in his learned and comprehensive article in NATURE of November 21, has suggested the various lines of research which it will be necessary to follow if a thorough-going knowledge of the mode of origin, structure, and fracture of flint is to be obtained.
openaire   +2 more sources

When, where and how osteoporosis-associated fractures occur: An analysis from the global longitudinal study of osteoporosis in women (GLOW) [PDF]

, 2013
Objective: To examine when, where and how fractures occur in postmenopausal women. Methods: We analyzed data from the Global Longitudinal Study of Osteoporosis in Women (GLOW), including women aged ≥55 years from the United States of America, Canada ...
Anderson, Frederick A, Adachi, JD, Stephen H Gehlbach, Universitat Autònoma de Barcelona. Departament de Medicina, Adachi, Jonathan D., Chapurlat, Roland D., Frederick H Hooven, Díez Pérez, Adolfo, Nelson B Watts, Adachi, Jonathan D, Nieves, JW, Netelenbos, J.C., Lyn March, Boonen, S, Saag, Kenneth G., Compston, Juliet E., Roux, Christian, Pfeilschifter, Johannes, Rossini, Maurizio, Boonen, Steven, Pfeilschifter J, Ethel S Siris, Boonen S, Siris, E.S., Anderson, F.A., LaCroix, Andrea Z., Siris, Ethel S., Adami, Silvano, Adami, S., Watts NB, Jeri W Nieves, Lacroix, A.Z., Watts, NB, Gehlbach SH, Roux, C., Maurizio Rossini, Compston, JE, Gehlbach, S.H., Costa AG, Pfeilschifter, J., Rossini, M., Christian Roux, Boonen, S., Greenspan SL, Susan L Greenspan, Watts, N.B., Compston JE, Costa, Aline G. [UNIFESP], Greenspan, Susan L., Gehlbach, SH, March, L., Adami, S, Saag KG, Roux, C, Adachi JD, Saag, KG, Anderson, Frederick A., Greenspan, SL, Compston, Juliet E, Anderson FA Jr, Saag, Kenneth G, Hooven, Frederick H., Netelenbos JC, Cooper, C., March, Lyn, Díez Pérez A, Nieves, Jeri W., Cooper, C, Adachi, J.D., March, L, Nieves, Jeri W, Hooven, F.H., Andrea Z LaCroix, Silverman S, LaCroix, Andrea Z, Kenneth G Saag, Watts, Nelson B, Adolfo Díez-Pérez, Chapurlat, RD, Saag, K.G., Aline G Costa, Silverman, Stuart, Rossini, M, Juliet E Compston, Compston, J.E., Diez-Perez, A., Diez-Perez, Adolfo, Wyman, Allison, Stuart Silverman, Chapurlat, Roland D, Anderson Jr, Frederick A., Nieves JW, Silverman, S., Netelenbos, J. Coen, Jonathan D Adachi, Roux C, Cyrus Cooper, Gehlbach, Stephen H., Siris, Ethel S, Netelenbos, J Coen, Roland D Chapurlat, Siris, ES, Frederick A Anderson, March L, Pfeilschifter, J, Costa, A.G., Hooven, FH, Allison Wyman, LaCroix, AZ, Gehlbach, Stephen H, Lacroix AZ, Chapurlat, Roland, Wyman, A., Chapurlat, R.D., Greenspan, Susan L, Díez-Pérez, A, Silvano Adami, Anderson, FA, Cooper, Cyrus, Costa, Aline G, Chapurlat RD, Wyman, A, J Coen Netelenbos, Hooven, Frederick H, Hooven FH, Siris ES, Steven Boonen, Wyman A, Silverman, S, Costa, Aline G., Greenspan, S.L., Watts, Nelson B., Johannes Pfeilschifter, Netelenbos, JC, Nieves, J.W., Costa, AG, Cooper C   +136 more
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Delayed surgical debridement in pediatric open fractures: a systematic review and meta-analysis. [PDF]

, 2014
Purpose: Open fractures are considered orthopedic emergencies that are traditionally treated with surgical debridement within 6 h of injury to prevent infection.
Erwin, PJ, Abdelsalam Hegazy, Riaz, M, Ibrahim, T, Muhammad Riaz, Tleyjeh, IM, Talal Ibrahim, Hegazy, A, Imad M. Tleyjeh, Patricia J. Erwin   +9 more
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Numerical study failure characteristics of natural fracture under induced stress

Energy Reports, 2023
Hydraulic fracturing is an effective method for developing oil and gas in unconventional reservoirs. The openings of natural fractures directly affect the complexity of the fracture body.
Changgui Xu, Shusheng Guo, Hao Liang
doaj   +1 more source

The Fractured Nature of British Politics

CoRR, 2015
13 pages, 7 figures, 1 ...
Carlos Molinero, Elsa Arcaute, Duncan Smith, Michael Batty   +3 more
openaire   +3 more sources