Principle and infiltration kinetics of molten salt infiltrating porous ceramic are analyzed. Infiltration depth expressions are educed. Main influence factors and some problems for instruction and foundation of future experiments are discussed.

Pressure-sensitive adhesive used for polyethylene film is prepared via solution polymerization.Effects of main monomer,functional monomer,initiator,cross-linking agent and solvent on performances of the pressure-sensitive adhesive are also studied.It is found that the product has high peeling strength(0.92 N/mm)and better adhesion.

Methods of producing high-strength and high-electrical conductivity copper alloys are reviewed in this paper. It is pointed out that Cu-Cr alloy in-situ composite material with directional solidification structure made by heated mold continuous casting has good properties, for it utilizes the high electrical conductivity of copper matrix and high strength of the chromium phase,and it will be widely used in industry.

The nanocrystalline pure copper powders are prepared by using KBH4,CuSO4,KOH,EDTA and PVP by reduction in acqueous solution. The impurity such as Cu2O can be removed by adjusting the content of reactant. The effect of dispersing agent PVP on the purities of copper powders is studied. The result shows that dispersing agent PVP is benefit to the disperse of powders.

The teaphenols and coffeic alkali are extracted under the condition of 166 of the ratio of water to tea at 80℃ for 8 min. The contents of teaphenols and coffeic alkali in tea soup are respectively to be (1.130～1.140 g/L )and 0.297～0.310 g/L, and the relative extracted efficiency is 93%～99% and 84%～95%. When the concentrations of teaphenols and Coffeic alkali in solution of tea soup surpass (3.0g/L) and 0.5 g/L, the teaphenols and coffeic alkali can interact to produce the associated polymers, to lead to form the turbid solution for greentea drink, and furthermore to reduce the quality of greentea drink.

This paper discusses the influences of initial total Nitrogen, total Phosphorus and ρTN/ρTP on algae blooming. On the basis of ρTN<2.0mg/L and ρTP<0.1mg/L, a good regulation exists between the algae growth quantity and ρTN/ρTP. According to different distributions of ρTN/ρTP rate,ralative regression momels of algae blooring are presented. They　can be used to predict an algae blooming.

Recent applications of TiN coating are summarized in this paper. Effect of ternary element addition on its properties is presented. The behaviors of multilayer coatings including TiN film are introduced. The future development trend of TiN coating is expected.

This article introduces a particular hydroforming equipment.This equipment has some advantages. It is simple,doesn’t need hydraulic press, and can provide variable blank holder force.So it can produce high quality parts.

A kind of real-time seam tracking based on CCD camera sensor and the fuzzy controller used in this system are presented in this paper. The test shows that this system could effectively improve the seam tracking precision.

This paper discusses the method of realizing punching machine with high precision and equidistance, mentions and studies thoroughly, the technology of PLC-servo electromotor achieving location control, presents the framework of system and part of the program design.

This paper describes the advantages of using the P87LPC76X and P89LPC900 CPU family as the hardware monitor of the 8XC5X (including 8XC5XX2 and P98C6XX2) CPU family, the methods of hardware connection, and the main points of the monitor CPU’s interrupt service procedure programming.

In this paper,the growth rate of energy in next year has been predicted by applying artificial neural network theory and Back-propagation based on neural network,on the basis of statistics and analysis of the growth rates of gross output value of industry and of energy in Gueizhou over the years.

Extension detecting is a new detecting method that is based on the extension analysis method of extenics.Many detecting problems that can not be solved with the traditional detecting method can be detected in the way of detecting the detectable matter-element rather than the undetectable matter-element based on the extension transformation method.Related matter-element is a bridge to connect the undetectable matter-element and the detectable one.The method of finding related matter-element and its application in the extension detecting are presented in the paer.

This paper describes the basic work principle and system structure of Bro which is a very popular, opening source codes and lightweight Network Intrusion Detection System, and provides several instances of policy script for some network intrusions. It simply compares Bro with Snort. Both of them are opening sources code NIDS.

This paper introduces the work flows and the configuration of the CNCnet IP telephone remote auto-recharge system, and gives two design methods of applying CTI examples in the system,and technological problems which meed to be solved.

Based on characteristics of content-based retrieval multimedia database system, integrating object-oriented data models, semantic data models with conceptual models, a practical content-based retrieval multimedia system is complished.

This paper studies the application of data mining in a web instructional resource base. A system of web instructional resources mining and text categorization has been developed and applied successfully in the instructional resource base of Guangdong Commercial College.

This paper develops and extends MAOCW, which is a new system based on mobile Agent, with its application in choosing courses on Web. In condition of CSCW, it effectively improves work efficiency and quality, as well as solves load balance and optimization configuration, etc.

Based on the tests of seven simply supported reinforced concrete beams strengthened with continuous carbon fiber sheet, the influence and effect on flexural strength in different layers and lengths of carbon fiber sheet are analyzed, including cracking load, ultimate load, stiffness and stress distribution of carbon fiber sheet. The conclusions of the tests and the results calculated with finite element method are compared and can prove the credibility and generality of finite element method for reinforced concrete beams strengthened with carbon fiber sheet. The results show that the bearing capacity, stiffness and modality of crack are obviously improved. Strengthening method with carbon fiber sheet is convenientand efficient. 

In the excavation engineering of Huimei Jingtai buildings, which are located on the bank of the Pearl River, the swing-spray wall together with theanchor tube is employed as retaining structure for the excavation. The practice shows that the seepage-prevented property of the structure has met the requirement for both construction code and the engineering design. The retaining structure has created an obvious economic interest in the foundation construction due to good seepage-prevented result and its low cost.

According to the asphalt concrete covering surface project in north approach of Shantou Haiwan Bridge for Shanfen Expressway in Guangdong Province, the different degrees of disease that were produced by the transitional pavement of the soft base sections in north approach of Shantou Haiwan Bridge finished in 1997 are investigated and analyzed, and the problems to be noted for the design and construction of the covering structures for the asphaltic concrete pavement are presented. The practices have proved that these covering structures are effective.

This paper introduces how to control the construction of large-size and large-span concrete beam in some project and how to restrain the heat check to application by an economic and effective means,in order to provid reference for the other constructions of large-size concrete beam.

This paper deals with the unconditional stability of a class of neutral linear large scale system with variable delays. Applying Lyapunov function with verctor norm, a lower order mass system is obtained by massing the model of neutral type linear large scale system. The stability criterias are obtained by means of the differential and integral inequlity.

A numerical method is proposed for solving a sort of nonlinear continuous constrained minimax problem,in which the objective function and the constrained functions are both continuously differentiable.The maximum-entropy function of discrete maximum problem and the maximum-entropy function of continuous maximum problem and the penalty function are used to transform the continuous constrained minimax problem into unconstrained differentiable problem.Basic algorithm is established.Numerical examples are given and show the efficiency and the reliability of the algorithm.

The great fixed point in logic programming is discussed. If the mapping of Herbrand interpretations T_p preserves filtered infs, or there are no function symbols in a definite program, or each variable in the body of the clause also appears in the head for each clause in the definite program, the set　T_p↓ω is the great fixed point of the mapping T_p. By Defined another mapping of Herbrand interpretations F_p, some Lloyd J W’s results on the fixed points are generalized.

Aiming at the enlargement of the difference of income distribution among people,this paper is contributed to study and discuss Gini coefficient,which is one of the most efficient indexes and methods to measure income inequality.The paper systematically introduces Gini’s familiar algorithm,and applies it to the measurement of the income inequality among city dwellers and to the measurement between cities and countries.Finally the data results are analyzed.