Results 11 to 20 of about 49,837 (219)
Enthalpy-composition Diagram Plotting for R134a/R23
Zhileng xuebao, 2005 R134a/R23 is a new refrigerant mixture and friendly to environment. In this research, the vapor-liquid equilibrium, enthalpy, and entropy of this mixture were calculated based on Peng-Robinson(PR)equation of state(EOS). To make PR equation more accurate,
王雁, 杜垲
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Effect of the "RNA control" locus in Escherichia coli on RNA bacteriophage R23 replication [PDF]
Journal of Virology, 1976 The effect of the rel gene of Escherichia coli on the RNA synthesis induced by phage R23 was studied. This RNA phage has the property of inhibiting ribosomal RNA formation and completely dominating the RNA synthesis of the host. Phage-specific RNA formation was found to be dependent on the allelic state of the rel gene.
J, Ernberg, O, Sköld
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Thermodynamic Analysis Of R507A-R23 Cascade Refrigeration System
, 2011 The present work deals with thermodynamic analysis of cascade refrigeration system using ozone friendly refrigerants pair R507A and R23. R507A is azeotropic mixture composed of HFC refrigerants R125/R143a (50%/50% wt.). R23 is a single component HFC refrigerant used as replacement to CFC refrigerant R13 in low temperature applications.
A. D. Parekh, P. R. Tailor
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Journal of Biological Chemistry, 1971 Abstract 1. A cell membrane-DNA-RNA polymerase complex which contains virtually all of the RNA-synthetic capacity of the cell has been isolated from uninfected and R23-infected Escherichia coli. 2. Infection of E. coli by RNA bacteriophage R23 inhibits the RNA synthetic capacity of the membrane complex.
D, Hunt, Y, Saito, M, Watanabe
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Thermodynamic Analysis Of Cascade Refrigeration System Using R12-R13, R290-R23 And R404A-R23
, 2014 The Montreal protocol and Kyoto protocol underlined the need of substitution of CFC’s and HCFC’s due to their adverse impact on atmospheric ozone layer which protects earth from U.V rays. The CFCs have been entirely ruled out since 1995 and a long-term basis HCFCs must be replaced by 2020.
A. D. Parekh, P. R. Tailor
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Optimization Of R507A-R23 Cascade Refrigeration System Using Genetic Algorithm
, 2010 {"references": ["Montreal Protocol on substances that deplete the ozone layer.\nUnited Nations Environment programme (UNEP), 1987.", "UNEP Assessment report of the technology and economic assessment\npanel, UNEP Ozone Secretariat, Nairobi, Kenya-2007.", "Kruse. H., Ru.. ssmann. H.
A. D. Parekh +2 more
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Comment on "Statistical nature of multifragmentation" (A.S.Botvina and D.H.E.Gross, Phys.Rev. C56, R23 (1998) [PDF]
, 1998 1 ...
Toke, Jan, Schroeder, W. Udo
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Thermal Analysis of Cascade Refrigeration System Employing the Refrigerant Pair R23-R404A
Journal of Physics: Conference SeriesAbstract In this study, a thermal analysis is conducted on a refrigeration cycle utilizing the refrigerant pair R23-R404A, specifically designed for ultra-low temperature applications reaching as low as -80°C. The study is motivated by the growing demand for ultra-low temperatures in applications such as automotive cold hardening and ...
Narendra Jagtap, Prafulla Hatte
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The structural heterogeneity of AKT autoinhibition. [PDF]
Protein SciAbstract AKT is key to controlling cell growth through the PI3K/AKT/mTOR pathway. In the cytosol, in the absence of stimulus, AKT is autoinhibited to prevent uncontrolled activation. Increased AKT activity contributes to tumor growth by phosphorylating numerous downstream targets.
Xu L +6 more
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Plants, 2021 Previously, an efficient regeneration protocol was established and applied to regenerate plants from calli lines that could grow on eggplant leaf explants after a stepwise in vitro selection for tolerance to salt stress.
Sami Hannachi +4 more
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