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O. A. Petrov 《Power Technology and Engineering (formerly Hydrotechnical Construction)》2007,41(6):346-350
Results are presented for a model study of wave formation in the lower pool of a hydroproject.
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Translated from Gidrotekhnicheskoe Stroitel’stvo, No. 10, October 2007, pp. 43–47. 相似文献
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E.O. Adamov I.I. Grozdov S.P. Kuznetsov A.A. Petrov M.I. Rozhdestvensky Yu.M. Cherkashov 《Nuclear Engineering and Design》1994,147(1)
Following the search for new design solutions to develop within the framework of channel trends the reactor with enhanced safety the Research and Development Institute of Power Engineering has developed the design of the multiloop boiling water reactor (MKER). The MKER enhanced safety is attained when involving the inherent safety features, passive safety systems as well as the accident consequences confinement devices. The design realizes several advantages which are typical of the channel-type reactors, namely: the design desintegration simplifying the manufacture, control, equipment delivery and decreasing, versus the pressure vessel reactors, the accident effect if it proceeds in an explosive manner; small operating reactivity margin and fuel burnup increased due to continuous refuelling; fuel cycle flexibility allowing comparatively easily to adopt the reactor to the conjuncture of the country fuel balance; multiloop circuit of the main coolant which reduces the degree and effect of the accidents connected with the equipment and pipings rupture; monitoring of the channels and fuel assemblies leak-tightness. 相似文献
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Varlinskaya Elena I.; Petrov Evgeniy S.; Robinson Scott R.; Smotherman William P. 《Canadian Metallurgical Quarterly》1994,108(2):395
Arginine–8 vasopressin (AVP) was administered to rat fetuses on Embryonic Day 20 via intracisternal (IC), intrahemispheric (IH), or intrathecal (IT) injection. The IC administration of AVP promoted a 4-fold increase in motor activity, including the uncommon patterns of mouthing, licking, and facial wiping. The IH injection of AVP had little effect on fetal behavior, but IT injection resulted in pronounced increases in fetal activity, including mouthing, licking, and wiping. The IT administration of a V? antagonist blocked AVP effects, whereas IH injection potentiated AVP-induced changes in fetal behavior. The IC blockade of V? receptors suppressed facial wiping to a chemosensory fluid (lemon) and reduced oral grasping of an artificial nipple, whereas IH injection of the V? antagonist promoted facial wiping responses and increased grasping of the nipple. These data suggest that AVP may play a role in the development of responsiveness to stimuli encountered in the context of suckling. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
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E. V. Chernyshev E. N. Veprov V. A. Petrov S. L. Bogdanov T. Yu. Levina T. I. Petrova V. I. Kashinskii A. A. Zonov A. E. Verkhovskii 《Power Technology and Engineering (formerly Hydrotechnical Construction)》2006,40(1):34-37
Results of a study of tube specimens cut from hot-water boilers show that film-forming octadecyl amine (ODA) used in the process
of preservation removes deposition from the surface of the metal. An ODA film is preserved on the surface after repeated washing
of the latter with hot water. The concentration of chlorides at the surface of the metal after treatment with ODA is lower
than before the treatment.
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Translated from élektricheskie Stantsii, No. 11, November 2005, pp. 15–18. 相似文献
27.
Transfer coefficients behind a system of parallel channels and in an annular channel of complex form
As a result of measuring the temperature (concentration) field behind the source, the transfer coefficients are determined for flow in a tube behind a system of parallel channelsZ/d = 50) and in an annual channel of complex cross section.Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 55, No. 6, pp. 897-902, December, 1988. 相似文献
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Yu. V. Petrov A. N. Erykalov L. M. Kotova M. S. Onegin É. G. Sakhnovskii 《Atomic Energy》2003,95(4):674-683
Calculations of the possibility of switching the matrix of the fuel-element cores and the vessel with the reactor envelope to weakly neutron-absorbing aluminum and lowering at the same time the fuel content in the fuel elements by 40% are performed for the high-flux PIK reactor which is under construction in Gatchina. As a result, the flux density of the thermal neutrons in the heavy-water reflector increases by a factor of 1.4–1.5 and the maximum unperturbed flux reaches a world record value – 1.9·1015 sec–1·cm–2. The nonuniformity of the volume energy-release decreases to 2.3. The weight of the control rods and reactor safety increase. As a result of the decrease of the fuel content in the fuel elements and the increase of the run duration, about 60 kg of high-enrichment uranium 235U are saved annually, decreasing annual fuel costs by one third. 相似文献