Results 31 to 40 of about 4,679,228 (305)

Reactivation of natural fractures network by hydraulic fracturing [PDF]

E3S Web of Conferences, 2020
Modelling the process of induced fracture initiation, propagation and interaction with natural fractures is a very challenged task. Significant progress has been made in recent years in the development of complex fracture models to address the needs for more suitable design tools than the conventional planar fracture models.
L. L. Alvarez, Leila Brunet de Sá Beserra, Leonardo José do Nascimento Guimarães, Osvaldo L. Manzoli   +3 more
openaire   +2 more sources

Prevalent morphometric vertebral fractures in professional male rugby players. [PDF]

, 2014
There is an ongoing concern about the risk of injury to the spine in professional rugby players. The objective of this study was to investigate the prevalence of vertebral fracture using vertebral fracture assessment (VFA) dual energy X-ray ...
Beck, B., Hind, K., Birrell, F., Birrell, Fraser, Birrell Fraser, Hind, K, Belinda Beck, Beck, Belinda, Fraser Birrell, Hind Karen, Hind, Karen, Beck Belinda, Karen Hind, Beck, B, Birrell, F   +14 more
core   +1 more source

Interference fracturing: Nonuniform distributions of perforation clusters that promote simultaneous growth of multiple hydraulic fractures [PDF]

, 2015
One of the important hurdles in horizontal-well stimulation is the generation of hydraulic fractures (HFs) from all perforation clusters within a given stage, despite the challenges posed by stress shadowing and reservoir variability.
Bunger, AP, Peirce, AP
core   +1 more source

Integrated Reservoir Engineering-Geological Evaluation of Fracability and Optimization of Hydraulic Fracture Propagation

Cejing jishu
To optimize the complexity of the fracture network during hydraulic fracturing in reservoirs for enhanced oil and gas recovery, it is essential to integrate geological heterogeneity and engineering parameters, and establish a fracability evaluation model
JIE Zhijun, ZHANG Min, SUN Chao, LIU Hongguo, CHEN Xing, ZHANG Zhuo, TANG Jizhou   +6 more
doaj   +1 more source

Hip fractures and area level socioeconomic conditions: a population-based study [PDF]

, 2009
Icks A, Haastert B, Wildner M, et al. Hip fractures and area level socioeconomic conditions: a population-based study. BMC Public Health. 2009;9(1):114.Background: Only a limited number of studies have analyzed the association between hip fracture ...
Becker Clemens, Icks, Andrea, Wildner, Manfred, Wildner Manfred, Rosenbauer, Joachim, Joachim Rosenbauer, Burkhard Haastert, Nico Dragano, Becker, Clemens, Andrea Icks, Clemens Becker, Meyer, Gabriele, Haastert Burkhard, Dragano Nico, Meyer Gabriele, Manfred Wildner, Haastert, Burkhard, Rosenbauer Joachim, Gabriele Meyer, Kilian Rapp, Dragano, Nico, Rapp, Kilian, Icks Andrea, Rapp Kilian   +23 more
core   +2 more sources

The Lupus Damage Index Revision Program: Results From the Item Generation and Reduction Phases

Arthritis Care &Research, EarlyView.
Objective A data‐driven and expert/patient consensus‐based project to develop a revised Systemic Lupus International Collaborating Clinics (SLICC)/American College of Rheumatology (ACR) Damage Index (SDI) is under way supported by SLICC, ACR, and the Lupus Foundation of America. Our objective is to report the item generation and reduction phase results
Burak Kundakci, Megan R. W. Barber, Ann E. Clarke, Sindhu R. Johnson, Anselm Mak, Hermine I. Brunner, Murat Inanc, Rosalind Ramsey‐Goldman, Guillermo Ruiz‐Irastorza, Ellen M. Ginzler, John G. Hanly, Alexandra Legge, Cynthia Aranow, Laurent Arnaud, Nathalie Costedoat‐Chalumeau, Dafna D. Gladman, Søren Jacobsen, Michelle Petri, Clovis A. Silva, Évelyne Vinet, Alexandre E. Voskuyl, SDI Revision Literature Review Groups, SDI Revision Delphi Panel, SDI Revision Item Reduction Committee, SDI Revision Clinical Domain Groups, Ian N. Bruce   +25 more
wiley   +1 more source

Neurovascular complications in displaced extension-type supracondylar fractures in children : outcome of conservative management [PDF]

, 2010
Includes bibliographical referencesThe aim of our study was to review our conservative management of neurovascular complications in displaced extension-type supracond ylar fractures of the humerus in children. We critically analysed the outcomes.
Louw, Frederik Marthinus
core   +1 more source

Damage Model for Reservoirs with Multisets of Natural Fractures and Its Application in the Simulation of Hydraulic Fracturing

Energies, 2022
The presence of natural fractures can significantly affect the quality of hydraulic fracturing operations in tightsand and shale or oil/gas formations.
Huifang Hu, Tian Shen, Naiyuan Zheng, Xinpu Shen, Jinbiao Yu   +4 more
doaj   +1 more source

Tibia Pathology and Fractures [PDF]

, 2020
The tibia is the larger, stronger, and anterior (frontal) of the two bones in the leg, which connects the knee with the ankle bones. The tibia, or shinbone, is the most fractured long bone in the body.

core   +1 more source

Employment Trajectories of Patients With Systemic Lupus Erythematosus and Factors Driving Transitions Between States

Arthritis Care &Research, EarlyView.
Objective Systemic lupus erythematosus (SLE) significantly impacts employment capacity. This study aimed to investigate the impact of burden of disease activity, damage, and treatment on employment outcomes and transitions in patients with SLE. Methods Using data from a single center, we analyzed employment transitions, adjusted mean disease activity ...
Javier Mencia‐Ledo, Zahi Touma, Laura Whittall Garcia, Dafna D. Gladman, Behdin Nowrouzi‐Kia   +4 more
wiley   +1 more source