Results 221 to 230 of about 182,598 (263)

Flow reversal in natural circulation systems

Applied Thermal Engineering, 2003
Boiling flow in natural circulation systems can be susceptible to thermohydrodynamic instabilities which can be the cause of mechanical damage. This paper presents an analysis of a circulation system where two unequal heated riser circuits are connected to a common downcomer. It can be shown that for such systems a critical heat absorption ratio exists
W. Linzer, H. Walter
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Reversible Cessation of Blood Circulation in Deep Hypothermia

Journal of Applied Physiology, 1958
In rats at body temperatures below 15℃, the arterial pressure reflected immediately the temperature of the heart.
E F, ADOLPH, S, KLEM, L B, MORROW
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Influence of Substrate Conductivity on Circulation Reversal in Evaporating Drops

Physical Review Letters, 2007
Nonuniform evaporation from sessile droplets induces radial convection within the drop, which produces the well-known "coffee-ring" effect. The evaporation also induces a gradient in temperature and consequently a gradient in surface tension, generating a Marangoni flow.
W D, Ristenpart, P G, Kim, C, Domingues, J, Wan, H A, Stone   +4 more
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[Significance of collateral circulation in reversible asynergy].

Journal of cardiology, 1991
The functional role of collateral circulation in reversible asynergy of the left ventricle was evaluated. Cineventriculograms were obtained before and after the administration of sublingual nitroglycerin (0.3 mg) in 19 patients with complete occlusion of the proximal portion of the left anterior descending coronary artery.
K, Yamanishi, M, Fujita, T, Hirai, A, Ohno, E, Araie, M, Ejiri, O, Sakai, K, Miwa, S, Sasayama   +8 more
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Reversible Stoppage of the Blood Circulation in Sabellids

Nature, 1933
SABELLIDS are marine polychaete worms, the blood system of which is peculiar, both anatomically and physiologically. Numerous capillaries are present, in the body wall, in the branchial crown, and projecting freely into the body cavity, all of them ending blindly. Most of the blood vessels in the body contract rhythmically.
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Extravascular circulation of lipoproteins: their role in reverse transport of cholesterol

Atherosclerosis, 1994
The transfer of lipoproteins out of plasma into peripheral tissues, their flow through the interstitium and their return to blood has been reviewed. In this context special emphasis has been given to reports dealing with the movement of lipoproteins into and out of the wall of arteries.
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Reverse Circulation Models

2021
William C. Lyons, James H. Stanley, Francisco J. Sinisterra, Tom Weller   +3 more
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The reverse flow among parallel U-tubes in steam generator under natural circulation condition: A review

Annals of Nuclear Energy, 2023
Hao Jianli, Ma Junjie, Huang Yanping
exaly  

Assessment on the reverse circulation performance of slurry shield pipeline system assisted with CFD-DEM modeling under sandy cobble stratum

Powder Technology, 2023
Yidong Guo, Xinggao Li, Dalong Jin
exaly  

Digitalization in Reverse Circulation Drill Rigs

Deep Foundations Institute 50th Annual Conference Proceedings
The integration of digital technologies into reverse circulation drilling (RCD) rigs represents a pivotal advancement in the foundation drilling industry, facilitating semi-automated operations with potential upgrades for full automation. This paper discusses the enhancements in efficiency and safety achieved through these technological upgrades ...
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