Results 211 to 220 of about 308,966 (268)

Multifactoral Nature of Spinal Cord Circulation

Seminars in Thoracic and Cardiovascular Surgery, 1998
Since 1988, our paraplegia risk has been one-tenth the risk of the standard Crawford technique with or without assisted circulation. This significant reduction in paraplegia risk was accomplished with a factoral problem-solving approach that demonstrated the additive effects of early intercostal artery ligation, moderate surface cooling, cerebral ...
C W, Acher, M M, Wynn
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Circulating natural killer cells in psoriasis

British Journal of Dermatology, 2003
Psoriasis is an immunologically mediated, probably autoimmune, disease in which T-helper type 1 cytokines play an important role. Established autoimmune diseases, with similar mechanistic characteristics to psoriasis, include multiple sclerosis, rheumatoid arthritis, type 1 diabetes mellitus and systemic lupus erythematosus.
Cameron, A. L., Kirby, Brian, Griffiths, C. E M   +2 more
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Nature of the Circulating Thyroid Hormone

Nature, 1949
Taurog and Chaikoff1 have presented strong evidence in support of the view that in the normal animal the circulating thyroid hormone consists of thyroxine loosely attached to plasma protein. They observed in rat plasma that the protein-bound iodine labelled with radioactive iodine (I131) followed thyroxine carrier quantitatively when the latter was ...
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Modeling and control of a natural circulation loop

Journal of Process Control, 2003
Abstract In this paper some theoretical and experimental results concerning the modeling and control of rectangular natural circulation loops are presented. These thermo-fluid-dynamic systems are used to refrigerate heat sources by means of natural circulation of a fluid without mechanical pumping.
MUSCATO, Giovanni, XIBILIA M. G.
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Scaling of natural circulation in PWR systems

Nuclear Engineering and Design, 1991
Abstract This paper deals with the problem of scaling complex thermalhydraulic scenarios measured in experimental facilities which simulate Pressurized Water Reactor systems. Phenomena occurring during different phases of natural circulation between the core and the steam generators are considered. The experimental data obtained in some integral test
D'AURIA, FRANCESCO SAVERIO, GALASSI G. M., VIGNI P., CALASTRI A.   +3 more
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Natural Circulation Loops

Journal of Heat Transfer, 1988
Natural circulation loops encompass a broad range of applications and phenomena. Basic experimental and theoretical studies as well as overall performance and systems testing and analyses have been carried out on natural circulation loops. Research in this important area is being vigorously conducted throughout the world and a number of representative ...
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Supercritical Natural Circulation Loop

2021
Supercritical natural circulation loop is a compelling technology for cooling of modern nuclear reactors, which promises enhanced thermal-hydraulic performance in a simple design. Being a new concept, related knowledge base is relatively thin and involves several conflicting theories and controversies.
Tanuj Srivastava, Pranab Sutradhar, Milan Krishna Singha Sarkar, Dipankar Narayan Basu   +3 more
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Optimization of forced circulation to natural circulation transition characteristics of IPWR

Annals of Nuclear Energy, 2021
Abstract For nuclear power plants, the operating characteristics of the forced circulation to natural circulation are particularly critical. In this paper, a simulation-based optimization method integrating the RELAP5 code and a multi-population genetic algorithm, is applied to investigate the characteristics of transition from forced circulation to ...
Yifan Xu, Minjun Peng, Genglei Xia, He Shang   +3 more
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Natural Circulation and Cable Conductors

1984
Natural circulation cooling, combining the advantages of cable conductors with a passive cooling system, is proposed and evaluated. This will be especially attractive if it is necessary to design the conductor for low AC losses. Such a cooling system is proposed for upgrading the axisymmetric diverter experiment (ASDEX) at the Institut fur Plasmaphysik
Hilal, M., Arendt, F., Jentzsch, K.
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Circulations and metabolisms: (Hybrid) Natures and (Cyborg) cities

Science as Culture, 2006
Imagine standing on Piccadilly Circus in London and considering the socio-environmental metabolic relations that come together in this global–local place.
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