Results 1 to 10 of about 1,019,010 (264)

Numerical Modeling of the Amount and Rate of Sand Produced in Oil Wells [PDF]

open access: yesJournal of Petroleum Science and Technology, 2021
Nowdays, sand production is one of the most important challenges in the oil and gas industries, making numerous issues. To prevent these problems, it is necessary to use mathematical models to estimate the sand production onset and the amount of sand ...
Ali Zalakinezhad, Saeid Jamshidi
doaj   +1 more source

Criteria used to define tumor necrosis factor-alpha inhibitors failure in patients with moderate-to-severe psoriasis: a systematic literature review

open access: yesAnnals of Medicine, 2023
Background Determining tumor necrosis factor-alpha inhibitors (anti-TNF-α) failure is still a challenge in the management of moderate-to-severe psoriasis.
Isabel Belinchon Romero   +5 more
doaj   +1 more source

Evaluation of Effective Parameters on Bearing Strength of Bolted Joints with GLARE Construction through FEM [PDF]

open access: yesمجله مدل سازی در مهندسی, 2020
This paper focuses on identification of bearing failure mechanisms in double sided bolted joints whith GLARE construction meanwhile to get a comprehensive analysis for bolted joint including GLARE type laminates.
Mahmood Zabihpoor   +2 more
doaj   +1 more source

Failure in Confined Brazilian Tests on Sandstone

open access: yesApplied Sciences, 2021
Strength of rocks in the confined tension region, where the minimum principal stress is tensile, has only infrequently been measured and is not well understood. Quasi-static confined Brazilian tests under a range of confining stresses (2.76 to 27.58 MPa)
Tyler Hagengruber   +4 more
doaj   +1 more source

Finite Elements Analysis of Biomechanical Behavior of the Bracket in a Gradual Horizontal Periodontal Breakdown—A Comparative Analysis of Multiple Failure Criteria

open access: yesApplied Sciences, 2023
This study assessed the stress distribution (in eighty-one 3D models of the second lower premolar) in a stainless-steel bracket and enamel crown under 0.5 N of intrusion, extrusion, rotation, translation, and tipping during a horizontal periodontal ...
Radu Andrei Moga   +4 more
doaj   +1 more source

ACR Appropriateness Criteria® Renal Failure [PDF]

open access: yesJournal of the American College of Radiology, 2021
Renal failure can be divided into acute kidney injury and chronic kidney disease. Both are common and result in increased patient morbidity and mortality. The etiology is multifactorial and differentiation of acute kidney injury from chronic kidney disease includes clinical evaluation, laboratory tests, and imaging.
Jade J, Wong-You-Cheong   +16 more
openaire   +2 more sources

Gas-dynamic roof fall during the potash deposits development

open access: yesЗаписки Горного института, 2020
In the development of practically all potash salt deposits, the study of gas-dynamic phenomena (GDP) is one of the most difficult tasks to ensure mining safety.
Alexander A. Baryakh   +2 more
doaj   +1 more source

Tensile validation tests with failure criteria comparison for various GFRP laminates [PDF]

open access: yesArchives of Civil Engineering, 2021
The paper studies the mechanical properties of glass fibre reinforced polymers (GFRP) with various types and orientation of reinforcement. Analyzed specimens manufactured in the infusion process are made of polymer vinyl ester resin reinforced with glass
Tomasz Wiczenbach, Tomasz Ferenc
doaj   +1 more source

Study on Failure Criteria and the Numerical Simulation Method of a Coal-Based Carbon Foam under Multiaxial Loading

open access: yesAerospace, 2023
Coal-based carbon foam (CCF) has broad application prospects in aerospace, composite material tooling and other fields. However, the lack of failure criteria limits its promotion.
Qikai Zhuang   +4 more
doaj   +1 more source

Instrument referral criteria for PlusoptiX and SureSight based on 2021 AAPOS guidelines: A population-based study

open access: yesFrontiers in Public Health, 2022
ObjectiveThe study aims to assess two refractive instrument-based methods of vision screening (SureSight and PlusoptiX) to detect refractive amblyopia risk factors (ARFs) and significant refractive errors in Chinese preschool children and to develop ...
Qi Yan   +15 more
doaj   +1 more source

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