Results 21 to 30 of about 165,045 (285)
Vertebral Fractures Predict Subsequent Fractures
Osteoporosis International, 1999 This population-based study documents an increase in most types of fractures following the occurrence of a clinically recognized vertebral fracture among 820 Rochester, Minnesota, residents. During 4349 person-years of follow-up, 896 new fractures were observed.
Melton, L +4 more
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Pan African Medical Journal, 2021 A fracture that lasts for a minimum of nine months without signs of healing for three months is the standard description of nonunion. Plethora of literatures highlights the determinants that increase the risk of nonunion as infections, older age, diabetes, anti-inflammatory drugs, use of tobacco/nicotine, open/compound fracture, low vitamin-D ...
Pragadeesh Palaniappan +1 more
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Numerical Analysis of Pulsed Eddy Current Testing for Erosion Defects of High-pressure Manifold
Shiyou jixie, 2023 In fracturing operation, erosional damage easily occurs in high-pressure manifold running for a long time under bad working conditions, and the online testing of high-pressure manifold is particularly important to ensure safe production.Based on pulsed ...
Li Jie +4 more
doaj
Prediction model of decompression wave velocity in supercritical CO2 pipelines containing impurities
You-qi chuyun, 2021 Once a supercritical CO2 pipeline fractures, decompression wave will appear at both end of the crack. Hence, the calculation of the decompression wave velocity during the pipeline fracturing is critical for the prediction and control of pipeline fracture.
Yuxing LI +3 more
doaj +1 more source
L-Shape based Layout Fracturing for E-Beam Lithography
, 2014 Layout fracturing is a fundamental step in mask data preparation and e-beam lithography (EBL) writing. To increase EBL throughput, recently a new L-shape writing strategy is proposed, which calls for new L-shape fracturing, versus the conventional ...
Gao, Jhih-Rong, Pan, David Z., Yu, Bei
core +1 more source
Field experiments and main understanding of shale oil hydraulic fracturing
Frontiers in Earth ScienceTo understand the key processes of hydraulic fracturing in shale oil reservoirs, such as artificial fracture initiation and extension, proppant transportation and settlement, and the influencing factors of post-fracture production, many hydraulic ...
Mengyun Zhao, Mengyun Zhao, Mengyun Zhao
doaj +1 more source
Development and Laboratory Test of All-Metal Bridge Plug for Ultra-High Temperature Environments
Shiyou jixie, 2023 Soluble bridge plugs are deficient for low compressive strength,slow degradation rate,and inapplicability to ultra-high temperature environment.For these problems,an innovative design of all-metal bridge plug for ultra-high temperature environments was ...
Cheng Yuxiong +5 more
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Cataclastic Characteristics and Formation Mechanism of Dolomite Rock Mass in Yunnan, China
Applied Sciences, 2023 The dolomite rock mass on the slope of the Yanhe domestic waste incineration power plant was used as the research object. The macro- and micro-structural characteristics of intact rock blocks and rock discontinuities were analyzed qualitatively and ...
Lin Tian +3 more
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Hydraulic fracture propagation in naturally fractured reservoirs: Complex fracture or fracture networks [PDF]
Journal of Natural Gas Science and Engineering, 2019 Understanding the behavior of fluid-driven hydraulic fracture in naturally fractured reservoirs is crucial in the development of geothermal energy and unconventional reservoirs. This study presents a fully-coupled numerical model to investigate hydraulic propagation in naturally fractured reservoirs, along with a comprehensive discussion on field ...
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A Computational Study of Polymer Solutions Flow Regimes during Oil Recovery from a Fractured Model
Applied Sciences, 2023 Increasing the efficiency of hydrocarbon field development is an important issue. One of the methods for increasing oil recovery is the injection of aqueous solutions of polymers.
Dmitriy Guzei +3 more
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