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H4SiW12O40-PAn is an excellent catalyst for synthesizing n-butyraldehyde 1,2-propanediol acetal, and the yield can reach more than 95.2%.
      
The yield of glutaric dialdehyde by this method can reach 73%.
      
The yield of the final product was 78%, and the melting point was 231-233°C.
      
Effect of the reaction time, mole ratio of reactants, and amount of catalyst on the yield of benzodioxoles were investigated.
      
The starting material used abroad is expensive and the yield is low (16%-28%); furthermore, to our best knowledge, no characterization of Compound A is available in the open literature.
      
We now use low-cost L-lysine as starting material, succeed in raising the yield of Compound A to about 66%, and characterize it.
      
Benzoxycarbonyl chloride was selected as amino group protection agent, and the yield was elevated by replacing sodium bicarbonate with triethyl amide as the acid's neutralizer.
      
Comparisons of the new and circular models in the experiment show that the new model can predict yield caused by real defects more accurately than what the circular model does, which is of significance for the prediction and improvement of the yield.
      
The pyrolysis process of wood was altered and the yield of volatile pyrolytic products was decreased by FRW treatment.
      
The correlation of prediction and experiments is very good, and the new criterion is used to predict the yield stresses of an internal single-crystal, Nickel-based superalloy, DD3, which is more accurate than that of Hill's at 760°C.
      
Thinking of the yield function as a plastic potential function from the associated flow rule, the elastic-plastic constitutive model for the FCC single-crystal material is constructed, and the corresponding elastic-plastic matrix is educed.
      
On the basis of the yield criterion and constitutive model of cubic single crystal materials, a subroutine to calculate the thermo elastic-plastic stress-strain of the material on an ANSYS platform was developed.
      
When bagasse was used as substrate and mixed with wet koji at a 1:1 (wt/wt) ratio, the yield of reducing sugars was 36.4%.
      
The yield of methyl esters was over 90% under the conditions of 230°C, methanol/oil mole ratio of 12:1, reaction time 8 h and catalyst amount (catalyst/oil) of 2% (w).
      
Experimental results showed that under acid pretreatment, the yield of bio-oil decreased while the production of gas and char increased.
      
Over this promising catalyst, the conversion of m-dinitrobenzene and the yield of m-phenylenediamine could reach 97.0% and 93.1%, respectively, under proper reaction conditions of hydrogen pressure 2.6 MPa, temperature 373 K, and reaction time 1 h.
      
The yield and enantiomeric excesses (e.e.) could respectively reach 75% and 90% for Pichia pastoris, and 80% and 70% for Geotrichum candidum, much higher than those catalyzed by baker's yeast.
      
Effects of reaction time, temperature, solvents, catalysts and feeding molar ratio on the yield and quality of products were investigated, and an improved procedure suitable for industrial production was established.
      
By increasing the acetylene flow rate from 10 to 90 sccm (standard cubic centimeter per minute), the yield and the diameter of CNTs increase.
      
Effects of exogenous folic acid on the yield and amino acid content of the seed ofPisum sativum L.
      
 

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