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Abstract: 1. Basic situation: The discipline of materials science and engineering is one of the most challenging discipline today. The progress of a country’s overall science and technology is inseparable from the support of the development of materials science and engineering. New materials have become an important symbol of the development of today’s society. The majors of this discipline obtained the right to award the master’s degree in 1986, and now 32 graduate students have been trained. Four professors, 13 associate professors, 17 lecturers, (including 5 doctors). Professor Shen Ningfu, one of the main academic leaders and doctoral supervisors, has jointly trained four doctoral students with Tsinghua University, Beijing University of Science and Technology, Xi’an Jiaotong University, and Southeast University. At the same time, a group of young academic bones

Abstract: This article mainly solves two problems with the variable coefficient linearly differential equations with characteristic heavy root types: ① If the type of equation has Y heavy characteristics roots, this type of equation can be reduced to N Y -level equations at one time, and the principle of reduction of the constant coefficient equation is promoted. ② This type of equation can find some special solutions on the premise of not knowing any features in advance.

Abstract: This article uses the same geometric method as [1], and the fatigue law of the oval arc equation under the bend and twisting composite stress obtained the fatigue conditions of the two -way and three -way main transformer.

Abstract: Based on the analysis of the biological degradation mechanism of single -ring aromatics, the factors that affect the biodegradation of single -ring aromatics are mainly to replace the electronic effects and bit resistance effects of the base, and establish the relationship between the biodegradation and electronic effect constant and the bit resistance constant. The test results have verified this relationship.

Abstract: In the study of the synthetic chloride industrial waste catalyst, 350 ° C, and the speed of sublimation loss of mercury chloride under water steam. Prove that the mathematical model proposed by Liu Dazhuang and others can be promoted and applied to this situation. The result of the obtained can also be used for environmental workers for reference.

Abstract: Low -concentration organic phosphorus pesticide photocatalytic degradation is in line with the first -level dynamic equation. Based on the LangMuir-Hinshelwood equation, this article applies the theory of gas solid catalytic reaction dynamic dynamics to the liquid solid catalytic reactions, and an organic phosphorus pesticide photocatalytic dynamic model has been established to verify the experimental results.

Abstract: This article studies the effects of different solvents on the chlorine nitrifying process, and the effects of organic solvent dosage, reaction raw material ratio, response temperature and time are selected from the selection of the position in one yuan nitric heterogeneous product. The results show that the addition of appropriate organic solvents is conducive to the production of nitrochlorobenzene, and as the amount of its dosage increases, the ratio of the ratio of nitrochlorobenzene to tan nitrate (P/O) is a certain regularity.

Abstract: The text studied the solution chemical treatment of wood chips, giving the optimal condition and material ratio of reactions, and using a cheap catalyst instead of expensive hydroxyzenesulfonate catalysts. The experimental results show that this new non -pollution process can be used for preparation of high -soluble liquefied wooden adhesives.

Abstract: This article pointed out the inconsistency of the radial distribution curve of the hydrogen atomic, and the principles of structural chemistry were applied to some inappropriate curve charts through computer analysis.

Abstract: This article mainly explains the disadvantage of the changes in the concentration of the reaction or product in the reaction system. It shows the advantages of the reaction rate when the response rate is used to indicate the superiority of the reaction rate.

Abstract: The curvature strain meter is a mechanical measurement instrument that can be used to measure bending strain. By studying the principles and performance of this article, this article determines that the transformation of the curvature in the first -end curved meter is transformed into a sufficient necessary condition for curvature strain meter, and the corresponding charts are listed. Based on this chart, a series of tables can be easily designed at the one -end curvature strain meter. The curvature strain can meet the requirements of the laboratory measurement of errors.

Abstract: This article introduces the working principle and structure of the mechanical stepless transmission test table, and gives the output torque, efficient theoretical and measured value of the XYZW-750 mechanical stepless transmission.

Abstract: This article first uses a certain dynamic planning method to solve the use of a comprehensive use of a reservoir with a combination of flood prevention and irrigation to obtain the optimal trajectory, and then use a diverse return method to formulate the scheduling function within one year. Based on this as the basis, a long series of simulation operation was performed. The technical route used in this article is successful.

Abstract: On the basis of analyzing the working conditions and characteristics of the floating gates, this article uses the theory of system reliability, and proposes a new way to synchronize the reliability of floating gates and research.

Abstract: This article studies the type of space leap in the trapezoidal anti -power tank through a model test and measures to improve its energy efficiency. The space jump of the trapezoidal anti -power tank is divided into three waves and four districts. With the help of the physical cents in the consumer tank, the space jump type of the consumer pond is improved, thereby improving the energy efficiency.

Abstract: This article is equivalent to the stability problem of the sticky soil slope at the problem of the generalization of the generalization of a generalized boundary of a single parameter function. Use the change method to derive the differential division equation (Euler equation) and cross -deeper conditions that should be met by the slide surface. This method can determine the shape function and safety factor of the sliding surface. As a special case, this article discusses the sliding surface shape that may appear in simple soil slopes, as well as the conditions that should be met in various parameters of the soil slopes in the critical state, so as to determine the critical slope height or critical slope.

Abstract: At present, the upper and lower water pipelines of general industries and civil buildings are mostly made of steel. If such pipelines are in air with a large high humidity or acidity concentration, rust and rust occurs. Although some of them are treated with anticorrosive rust, it is often difficult to achieve the purpose of protection and cause trouble for users. The key to preventing corrosion of steel pipelines is anti -corrosion membrane. Only by trying to create a protective layer with a highly attached intensity and adapting to humidity, corrosion and oxidation and resistance can we be competent. After repeated analysis and research test, explore two simple economic treatment methods, ① Before installing the pipeline, it is used as a thermal wrap with anti -corrosion treatment; The use of these two anticorrosive rust and anti -rust methods can achieve once and for all.

Abstract: This article discusses and analyzes the three production methods of X195 diesel engine crankshaft assemblies, and determines the production method that can ensure accuracy and economy.

Abstract: Shen Ningfu, born in August 1935, was born in Shanghai. He graduated from the former Soviet Union Ural University of Technology in July 1959 and obtained the "Soviet Metallurgical Engineer" degree. From October 1979 to February 1982, the State Public School sent to the Department of Materials Science at the University of Birmingham University in the Materials Science of Materials Science, and was a place researcher. Since October 1959, he has taught at Zhengzhou Institute of Technology, calendar

Abstract: This article explains more detailed designs of the hardware system of the radar servo system and its implementation. This system is a prerequisite for effectively controlling the radar servo system. In the design of a complete and reliable hardware system, a variety of technical measures were adopted, and finally the design and implementation of all hardware systems were successfully completed. The successful completion of the neural network intelligent PID control experiment has further proved the practicality and reliability of the system.

Abstract: This article introduces the interface circuit of the MCS-51 single-chip microcomputer and the disk drive according to the working principle of the disk drive and the corresponding driver. Using this technology, data exchange between the MCS-51 application system and IBM microcomputers can be achieved by disk. In the design, fault diagnosis technology is used to judge and deal with the faults in the system, thereby improving the reliability of the system.

Abstract: This article briefly introduces the basic structure and functions of the residential design expert system (ESASD), and discusses the basic structure of ESASD’s knowledge base, graphics library, software support library and its library construction technology.