Results 31 to 40 of about 3,374,783 (301)
Cejing jishuTo solve the problems of difficult fracture identification and low evaluation accuracy in the Cretaceous ultra-deep tight sandstone reservoir of the Bozi-Dabei area in the Tarim basin under the background of oil-based drilling fluid, clarify the fracture
GUO Qingbin +5 more
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Journal of the Japanese Association for Petroleum Technology, 1961 The factor connected most closely with the effect of fracturing is the permeability of fracture made in oil reoervoir by fracturing. In this treatise, therefore, I showed the effect of fracturing in numerical value, based on the permeability of the fracturing sand. Of course, the real condition of oil reservoir is very complex and the flowing condition
openaire +2 more sources
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
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Flexoelectric Fracture-Ratchet Effect in Ferroelectrics [PDF]
Physical Review Letters, 2019 The propagation front of a crack generates large strain gradients and it is therefore a strong source of gradient-induced polarization (flexoelectricity). Herein, we demonstrate that, in piezoelectric materials, a consequence of flexoelectricity is that crack propagation is helped or hindered depending on whether it is parallel or antiparallel to the ...
Cordero-Edwards, Kumara +4 more
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Effect of fracture roughness on the hydrodynamics of proppant transport in hydraulic fractures [PDF]
Journal of Natural Gas Science and Engineering, 2020 Abstract The effect of fracture roughness is investigated on proppant transport in hydraulic fractures using Joint Roughness Coefficient and a three-dimensional multiphase modelling approach. The equations governing the proppant transport physics in the fracturing fluid is solved using the hybrid computational fluid dynamics model.
Yatin Suri +2 more
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Symptoms of anxiety or depression and risk of fracture in older people: the Hertfordshire Cohort Study [PDF]
, 2012 SummaryThe aim of this study was to examine the prospective association between symptoms of anxiety and depression and risk of fracture in older people.
Sayer, A.A. +13 more
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Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Reduced bone mineral density (BMD) has been reported in survivors of childhood and young adult acute lymphoblastic leukaemia (ALL); however, data from cohorts treated with contemporary protocols and including matched controls remain limited.
Karen Schow Jensen +10 more
wiley +1 more source
Electronic Physician, 2016 Introduction: Fractures caused by osteoporosis are prevalent among elderly females, which reduce quality of life significantly. This study aimed at comparing cost-effectiveness of Zoledronic acid in preventing and treating post-menopause osteoporosis ...
Fateme Rostami Golmohamdi +3 more
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The Effect of Age on Fracture Healing Time in Metacarpal Fractures
HAND, 2018 Background: Older patients are treated for fracture with increasing frequency. Although studies on animals suggest that older mice and rats heal fractures more slowly, the clinical implications remain unclear. A better understanding of differences in healing with age can help customize fracture treatment.
Ronit, Wollstein +5 more
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Scaling of fracture response in Over-height Compact Tension tests [PDF]
, 2015 An experimental investigation into in-plane scaled Over-height Compact Tension (OCT) [45/90/-45/0]4s carbon/epoxy laminates was carried out to study the scaling of fracture response.
Hallett, Stephen R. +3 more
core +1 more source