G-efficiency

A nickel hydride complex, NiHCl(diphenylphosphinoethane), catalyses the tandem isomerization-aldolization reaction of allylic alcohols with aldehydes.156 The atom- (g) efficient process proceeds at or below ambient temperature with low catalyst loading, and works well even for bulky aldehydes. Magnesium bromide acts as a co-catalyst, and mechanistic investigations suggest that a free enol is formed, which then adds to the aldehyde in a hydroxyl-carbonyl-ene -type reaction. 

Kolios, G., Frauhammer J., Eigenberger G., Efficient reactor concepts for coupling of endothermic and exothermic reactions, Chem. Eng. Sci. 2002, 57,1505-1510. 

Wasilewska, M., Goessler, W., Zischka, M., Maichin, B., Knapp, G. Efficiency of oxidation in wet digestion procedures and influence from the residual organic carbon content on selected technique for determination of trace elements. J. Anal. At. Spectrom. 17, 1121-1125 (2002)... 

Cobum WA, Heath G. Efficient and effective dmg development. In Applications of Pharmacokinetic Principles in Drag Development. Krishna R, ed. 2004. Kluwer Academic/Plenum Publishers, New York. pp. 1—20. 

The experimental campaign is aimed at assessing combustion characteristics, operating performances (e.g. efficiency, flexibility and hours of operation) and noxious emission levels of a small size Diesel fuelled with the BCO/Diesel oil emulsions. 

Yamada, M., Yashiro, S., Yamano, T., Nakatani, Y., Ouhsson, G. Efficient acylation of alcohols with acylthiazolidine-2-thiones and cesium fluoride. Bull. Soc. Chim. Fr. 1990, 824-829. 

Guerbet M, Guyodo G. Efficiency of 22 online databases in the search for physicochemical, toxicological and ecotoxicological information on chemicals. An Occup Elyg 2002 46 261-8. 

Rehbock, B., Ganber, D., and Berger, R.G., Efficient generation of 2E-hexenal by a hydroperoxide lyase from mung bean seedlings, Food Chem., 63, 161, 1998. 

Page, P.G. Efficient cost management through chemical conservation and waste minimization for the electroplating industry. Proc. AESF Ann. Tech. Conf. 1997, 84, 321-327. 

D5. de Ligny, C. L., and Remijnse, A. G., Efficiency of chromatographic procedures. IV. The efficiency of chromatography on various kinds of Whatman paper and of thin-layer chromatography on various kinds of cellulose powder for the separation of amino acids. Rec. Trav. Chim. Pays-Bas 86, 421-435 (1967). 

B29. Byars, B., and Jordan, G., Efficient packed column for free fatty acids. J. Gas... 

Material Theoretical Heat of Combustion BTU/lb (kj/g) Efficiency Chemical Heat of Combustion BTU/lb (kj/g)... 

Oberg KC, Pira CU, Revelli J-P, Ratz B, Aguilar-Cordova E, Eichele G. Efficient ectopic gene expression targeting chick mesenchyme. Dev Dyn 2002 224 29i 302. 

Because the extraction efficiency was determined by the direct comparison of dye concentration in the spiked dyebadi before and after the extraction, the higher SFE recoveries (e.g. efficiency >99%) should have relative standard deviations <1%. For the purpose of this study, >99% of recovery is sufficient to illustrate the effectiveness of the SFE technique. According to our experiments, no decomposition or breakdown of these disperse dyes was observed during SFE at the specified experimental conditions described atove. The restrictor flow rates of SC-CO2 often dominate the success of SFE, and can be varied to provide information on the dynamics of the extraction process. It is known that if the flow of supercritical fluid is sufficient to sweep the ceil void volume, the effectiveness of the extraction is enhanced. In fact, changing the flow rate is a simple way to determine the extraction efficiency (7). In this study, no obvious difference in extraction efficiency was observed at the SC-C02 flow rate of 2.0, and S.O mL/min. It is also noted that SFE of samples with high concentrations of water tends to plug fused silica restrictors 19). Therefore, a restrictor temperature controller was used in our experiments to avoid restrictor plugging. 

Heinrich, R. Holzhutter, H.-G. Efficiency and design of simple metabolic systems. Biomed. Biochim. Acta 1985, 44, 959-969. 

To compensate for a reduced gas- to liquid phase oxygen transfer driving force that results from lower temperatures, technical solutions to improve the oxygen mass transfer from gas to liquid will have to be used (e.g., efficient stirrer designs). 

Trade-offs may not be needed in aU situations, however. Jobs can often be improved on one approach while still maintaining their quality on other approaches. For example, in a recent redesign study, the motivational approach was applied to a group of clerical jobs to improve employee satisfaction and customer service (Campion and McQeUand 1991). The expected benefits occurred along with some expected costs (e.g., increased training and compensation requirements), but not all potential costs occurred (e.g., efficiency did not decrease). 

P G Efficient Consumer Response Adoption as a Change Program... 

Though this work proposes an alternative approach to imperfect maintenance models available so far in the literature, it is far from being complete. Indeed, the characterization of e.g. efficiency as a decreasing function with time is the plasticity region needs... 

Chemical Hydride Catalysis System Amount of Catalyst (g) Hj Generation Rate (L min ) Hj Generation Rate per Amount of Catalysis (L min g ) Efficiency (%) Reference... 

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