The effect of process conditions such as microwave reactant ratio catalyst and solvent etc on the nucleophilic substitution and yield of product were investigated .

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Solid clay brick is prohibited by no means of simply make substitution of product

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The Market Structure Investment Substitution and Capital Marginal Product & The Diversification Character and its Cause of China 's Different Province Capital Marginal Product in the Transition Period

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The low degree of substitution cationic starch was synthesized in dry process by using petroleum ether as dispersant . The reaction efficiency was more effective and the product was more homogeneous .

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A Graphics Substitution Approach to Product Structural Design

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The applications of BSO-PROM for OSS ( optical symbolic substitution ) MOPC ( matrix outer product calculation ) and NI ( network interconnection ) are also implemented .

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The result indicates that optimal reacting temperature was 50 u2103 its optimal reacting time was 4 h its optimal soda concentration was 40 % and its optimal catalyst was 5 % . The substitution degree of product is highest .

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The author described the restrictions in China and other countries on alkyl halide extinguishing agent and extinguishers the substitution technology and his understanding of the restriction regulation on alkyl halide product in the current fire_fighting code and pointed out the principle of substitution of alkyl halide product .

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The sodium carboxy-methyl starch was synthesized via carboxymethylation reaction between sodium starch and alcohol solution of chloracetic acid by quaternary ammonium salt catalysis process . The degree of substitution of the product is higher than tradition one .

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The high degree of substitution product was purified and graded with dialysis bag . Two kinds of sulfated agarose ( AGS ) with different molecular weights were obtained .

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When substitution effect does exist between energy products one product 's price rise can cause benefit growth of other energy industries .

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Beginning with the factors analysis affecting new product launch time the article sets up two models-product substitution model and product competition model . By the analysis on the models this article illustrates how to choose the optimal launch time for the new product in various situations .

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The first is the speed of industry substitution and product renovation got extremely rapidly the cycle of technology transfer shortened . That makes global industry situation complicated . The second is that technology development increased industry distribution and brought new industry .

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Range analysis of orthogonal experiments showed that the sequence of the factors affecting the degree of substitution of the product was as follows : mass fraction of substrate pH reaction temperature reaction time . 4 .

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The results showed that with increasing the amount of u03b1 Al 2O 3 substitution for HAC the unreacted cement content was reduced and the pore radius was smaller in the MDF composite but the hydration product content and the compositions of the binder phase were unaffected significantly .

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In this reaction besides substitution products thiophenol etc the reduction product benzene is formed .

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Considering the substitution relationship between standardized product and customized product this paper focus on the analysis on the market elasticity of customizing degree and price rising rate .

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