How to ensure the quality of fast pickled vegetables with low salt;

A new method applying on the fast breaststroke teaching for the youngster;

On rapid prototype manufacturing technology for plastic products as well as its application;

On the basis of it,tridimensional molding for the sample piece by the use of rapid prototype technology was formed and the resin master model was made.

The principle, classification and main technology of rapid prototype have been introduced in comparison with conventional working processes.

Review of Progress in Investment Casting Technology at Abroad PartⅫ:Application of Rapid Prototyping Technology to Investment Casting;

Study of an effective laser redius compensate algorithm for rapid prototyping;

Reasearch on Adaptively Slicing the Unchangeable Thick Layer in Rapid Prototyping;

Experimental data were analyzed based on the computation models of formation rate and volumetric proportion.

Based on hydrate formation rate theory,the experiment data were calculated.

crystallization kinetics was studied for dipentaerythritol and pentaerythritol by analyzing the nexus of crystal size and crystal population density and the nexus of crystal growth rate and nucleation rate.

The nucleation rate indicated by inducement temporal hour was measured.

The nucleation rates exceeding 10 35 m -3 s -1 were determined in molecular dynamics simulations at 300K to 600K for the freezing of molten (RbCl) 108 clusters.

The results demonstrate that the formation rate of CO2 hydrate is rather slow in a quiescent system without surfactant,and hydrates are formed only at the gas-water interface.

Then the data were analyzed combined with the calculation theories of hydrate's induction time,formation rate and void fraction.

This paper analyzes the mechanism of methyl acetate formation, the influencing factors of ester formation rate in the terephthalic acid production process, and also analyzes the improvement of Amoco process variables.