摘要:Weather proverbs about are embodiment of the wisdom of the working people. This essay makes a systematic sudy on the classification,scientific value, limitation of such proverbs as well as the points to consider in their practical use.
关键词:Weather proverbs;weather factors;changes of sky conditions.
摘要:This article tells about the whole process of manufacture and experiment of the new permeable modlel plate. Through analysing and processing the surveyed data, we can draw a conclusion that using the permeable model plate can improve the strength, density and durability ot concrete arid better its surface conditions arid reduce occurrence of concrete internal drawbacks. Drainage plate is convenient to manufacture and costs low. It is a new type of medel plate worth using and spreading.
关键词:permeable model plate;drainage plate;filter cloth;durability;density;drainage capacity
Lu Xianqi Yin Shixia Shandong Polytechnic University
Issue 3, Pages: 60-65(1994)
摘要:This paper reveals the internal relations between the amount of actual oil supply and the constant variable oil film thickness on tooth faces according to the characteristics of gear drive . It explains and analyzes the mechanism of the influence of oil supply on the lubrication effect and the cooling effect of tooth faces according to the basic theory of modern science and technology system. Therefore the research and application to the oil supply theory have been brought within the modern scientific field and the scientific basis for theory has been proveided for the analysis and reveiw of the practicable use of all the different views of oil supply and for the selection of the optimum oil supply scheme for the gear.
关键词:Mechanism of oil supply;Amount of actual oil supply;Modern science.
Liang wei Dept of physicsHong Zheng ping Dept of Shandong Normal University
Issue 3, Pages: 71-76(1994)
摘要:The classical mechanics Hamilton-Jacobi thory in detaie was studied and the relation between Hamilton-Jacobi equation and wave mechanics was discussed briefly in this paper.
摘要:The curve convergence and length of arc converpence of convergent function sequence were disussed systematically. A property theorem and a judement theorm of lenth of arc convergence were gived and proved in this paper.
关键词:convergence;consistent convergence;curve convergence;length of arc-convergence
摘要:This article use the method of Fuzzy mathematics to give the concept of the centre of sort and the centre courses of all sorts on one subject, and use this theory to work out the problem of selecting books for the university library successfully.
摘要:The interaction between the zwitterionic surfactant tetradecyl betaine(Ci4BE) and anionic polyelectrolyte sodium carboxymethyl cellulose (CMC-Na) has been investigated by measurements of surface tension viscosity and ultrovioled visible spectrosopy. As the result, it is shown that C14BE bind to CMC-Na and form complex at PH = 2 because of electrostatic force;no complex are formed at PH=7,the effect of each other are similar with electrolyte;the added NaCl impel the formation of H-binding between them, so complex are formed even at PH=7.