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The influence factors of the synthesis were discussed, and the best reaction conditions were found: the molar ratio of n-butyraldehyde to 1,2-propanediol is 1:1.5, the amount of catalyst used is 1.2% of feed stock, and the reaction time is 1.0 h.
      
It was found that the content of AGE in the copolymer increases with the increase in monomer conversion and molar faction of the AGE in the monomer feed.
      
However, the polymerization could slow down when the fraction of AGE increases in the monomer feed.
      
A feed rate self-adjusting method was proposed to uniform the grinding speed with the changes of sectional curvature.
      
Implementation of an adaptive feed speed 3D NURBS interpolation algorithm
      
However, most of them focus on a constant feed speed without considering the contour accuracy.
      
In order to deal with this problem, an adaptive feed speed interpolation algorithm for 3D NURBS parametric curves with confined chord errors is proposed.
      
When the instantaneous radius of the curvature is small enough, the proposed interpolation algorithm automatically reduces the feed speed to meet the specified chord error.
      
In the other situation it uses the second-order Taylor's expansions approximation interpolation algorithm to obtain a constant feed speed so that the contour accuracy in the CNC system is guaranteed.
      
The fabricated PEN cell generated electricity between 600°C and 680°C using H2S as fuel feed and air as oxidant.
      
Reaction feed was prepared by dissolving dibenzothiophene (DBT), which was selected as a model organosulfur compound in diesel fuels, in n-octane.
      
The resulting copolymers were characterized by FTIR, 1H NMR and Gel Permeation Chromatography (GPC) analyses, and it was found that the enchained ratio of AMO in the copolymers is far lower than its feed ratio.
      
The experimental results show that temperature and chloride content in the feed have significant influence on the volatility of heavy metals, especially those of lower boiling point such as Hg, Cd and Zn.
      
The addition of CO2 or H2O to the feed gas promoted NO conversion by increasing the maximum discharge voltage, and NH4NO3 was formed in the presence of NH3.
      
The sensitivity of enzyme immunoassay with immobilized gelatin-based conjugates for determination of zearalenone in solution was 1 ng/ml, and this allowed us to determine this substance in feed at a threshold concentration of 200 μg/kg.
      
The species that feed on abundant and highly aggregated plankton are able to molt during breeding.
      
The effect of feed composition on nitrogen-fixing activity of the symbionts living in the digestive tract of sibling vole Microtus rossiaemeridionalis was experimentally studied.
      
In vitro feed testing (with soybean meal and soybean byproducts enriched with galactooligosaccharides as substrates) demonstrated that both α-galactosidases from P.
      
canescens could be successfully used as feed additives.
      
The investigation is based on the nano-or ultrafiltration of inorganic salts in the presence of a polyelectrolyte in the feed solution.
      
 

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