Results 1 to 10 of about 59,695 (266)
Prediction model of casing annulus pressure for deepwater well drilling and completion operation
Petroleum Exploration and Development, 2013 Casing collapse and fracture may be caused by the rise of casing annulus temperature and pressure in the initial stage of production and testing of deepwater wells.
Zhengli Liu, De Yan
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International Journal of Anatomy Radiology and Surgery, 2022 Introduction: Measurement of the aortic and pulmonary valve dimensions is critical in diagnosing stenotic diseases as well as preparation of prosthetic valves.
Sandhya Rani Chatripalli +1 more
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TTC6-Mediated Stabilization of the Flagellum Annulus Ensures the Rapid and Directed Motion of Sperm
Cells, 2023 Sperm motility and structural integrity are essential for successful fertilization in vivo, and any hindrance of the correct assembly of the axoneme and peri-axonemal structures in the sperm flagellum can lead to fertility problems.
Ziqi Wang +11 more
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Nagoya Mathematical Journal, 1961 Let C and C′ be two simple closed curves in the complex z-plane which have no point in common and surround the origin. Denote by D the annulus bounded by C and C′. Consider a family {γ} of rectifiable curves γ in D and the family P of all non-negative lower semi-continuous functions ρ = ρ(z) in D ...
Akaza, Tohru, Kuroda, Tadashi
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Combing a Linkage in an Annulus
SIAM Journal on Discrete Mathematics, 2023 This is an extension of the combinatorial results appeared in [Petr A. Golovach, Giannos Stamoulis, Dimitrios M. Thilikos: Hitting Topological Minor Models in Planar Graphs is Fixed Parameter Tractable. SODA 2020: 931-950].
Golovach, Petr +2 more
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Experimental Investigation of Critical Heat Flux on Different Surfaces at Low Pressure and Low Flow
Energies, 2020 Steady state flow boiling experiments were carried out on several heated tubes with outer diameter 9.14 mm at outlet pressures 120, 200 and 300 kPa, inlet temperatures 64, 78 and 91 °C and approximately 400, 500, 600 and 800 kg/(m2·s) mass flux entering ...
Ladislav Suk +4 more
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Reviews in Cardiovascular Medicine, 2023 Background: Hypereosinophilic syndrome (HES) is a peripheral eosinophilia characterized by elevated absolute eosinophil cell count (>1.500 cells/μL) and consequent tissue and end-organ damage.
Attila Nemes +5 more
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Swirl flow in annular geometry with varying cross-section
Engineering Applications of Computational Fluid Mechanics, 2022 Swirling gas flow is an important topic of research that helps in the design of rockets, atomizers,and gas turbine combustors. In the present work, swirl flow inside annular geometries with constant and varying cross-sectional areas are examined using ...
Mohammad Raghib Shakeel +1 more
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Reducing Subspaces on the Annulus [PDF]
Integral Equations and Operator Theory, 2011 We study reducing subspaces for an analytic multiplication operator M_{z^{n}} on the Bergman space L_{a}^{2}(A_{r}) of the annulus A_{r}, and we prove that M_{z^{n}} has exactly 2^n reducing subspaces. Furthermore, in contrast to what happens for the disk, the same is true for the Hardy space on the annulus.
Douglas, Ronald G., Kim, Yun-Su
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Transient generalized Taylor-Couette flow: a semi-analytical approach
Journal of Taibah University for Science, 2020 Semi-analytical solution of transient generalized Taylor-Couette flow of a viscous, incompressible fluid between the gaps of concentric rotating cylinders under applied azimuthal pressure gradient ispresented.
Basant Kumar Jha, Yahaya Jibrin Danjuma
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