Results 11 to 20 of about 4,812,338 (197)

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

Risk-based Reliability Assessment of Subsea Control module for Offshore Oil and Gas production [PDF]

open access: yes, 2014
Offshore oil and gas exploitation is principally conducted using dry or wet tree systems, otherwise called the subsea Xmas tree system. Due to the shift to deeper waters, subsea production system (SPS) has come to be a preferred technology with ...
Umofia, Anietie Nnana
core   +7 more sources

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

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

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

Heart Failure Statistics in Korea, 2020: A Report from the Korean Society of Heart Failure [PDF]

open access: yes, 2021
Background and Objectives Heart failure (HF) is a disease with high morbidity and mortality. With ageing society and increasing prevalence of risk factors of HF, the prevalence of HF is expected to increase, as well. In this official report of the Korean
이찬주, 강석민, 최의영
core   +1 more source

Criteria for opening an axial cavity in cross-wedge rolling

open access: yesВесці Нацыянальнай акадэміі навук Беларусі: Серыя фізіка-тэхнічных навук, 2023
The application of empirical, phenomenological deformation and energy theories of metal fracture in relation to the process of cross-wedge rolling is considered.
G. V. Kozhevnikova   +2 more
doaj   +1 more source

Advanced chronic heart failure: A position statement from the Study Group on Advanced Heart Failure of the Heart Failure Association of the European Societyof Cardiology [PDF]

open access: yes, 2007
Therapy has improved the survival of heart failure (HF) patients. However, many patients progress to advanced chronic HF (ACHF). We propose a practical clinical definition and describe the characteristics of this condition.
METRA, Marco   +1 more
core   +3 more sources

Home - About - Disclaimer - Privacy