Yi Deming , Liao Gang , Long Meibiao , Lin Cheng , Yang Shouzhang
Abstract:We have proposed the mathematical model on the rake faces, major flanks end cutting edges of the ball-nose end mill with "S" shape major cutting edges,based on the analyses of their mechanical sharpening method. They possess important theoretical sense fo
Abstract:The influences of the H-Q characteristic curves of industrial centrifugal pumps on the rotating stability, characteristics and applicable fields are studied. A stable rotating criterion of pumps with hump shape curve is proposed. It is pointed out that th
Shi Bao , Wang Zhicheng , Li Zhixiang
Abstract:Using some new techniques such as accretive operator,etc.,the asymptotical behavior of the solutions of a class of new type of functional differential equations was studied,the works of Dunkel, Eder, Wang and the author were furtherly generalized,and bett
Abstract:The Cauchy principal value of intergral with a Kernel density having infinitely discontinuous points on the real axis was discussed. Under certain condition,some results were obtained.
Abstract:Some concept and basic theorems of total boundedness and total overall asymptotic stability of functional differential equations with infinite delay were given.
Chen Xiaohua , Peng Jingcui , Chen Zongzhang
Abstract:Thermodynamic model for ordered phase transition in C60 crystal is presented. The thermodynamic properties for C60 crystal is calculated using this model. The ordering parameter, entropy, inter-energy and specific heat occur sudden change at the critical
Zeng Yun , Yan Yonghong , Zeng Jianpin
Abstract:A new method to analyze the phosphours-doping efficiency was proposed. It solved the calculation problem of doping efficiency on a-Si film in the range of high-doping and low-doping. The method is simple and convenient. The accurate date of doping concent
Wang Lingling , Zhang Bangwei , Zhang Heng , Wu Lijun , Li Xueqian , Li Liwen
Abstract:由行星式高能球磨机采用机械合金化法成功地将纯元素粉末Co和P合成为非晶态Co80P20合金。其结构由X射线衍射仪分析。讨论了交流磁性能随球磨时间的变化规律。在球磨时间为30h附近出现完全非晶相时样品的交流磁化率x达极大值;而反映铁磁物质磁损耗性能的损耗因子tgδ出现极小值。
Abstract:针对工程中常见的δ/R=1/6 ̄1/10的壳体,采用中厚壳的基本假定,整理和指导了基本方程,得出了在球壳轴对称变形的特定情形下,薄壳理论的全部公式与结论均适用于中厚壳的结论,从而为这种情况下薄壳理论的研究成果开辟了新的应用范围。
Huang Shasheng , Li Bifen , Lin Huikai , Yu Ruqin
Abstract:The polymer films of naphthalene, including naphthylamine, naphthalenol and aminonaphthalenol, were obtained by electrochemical polymerization method. The polymerization form of 1-naphthylamine was studied by the infrared spectroscopy, X-photoelectron spe
Chen Tongsen , Luo Minghui , He bo , Li Ouyan
Abstract:研究了铝(Ⅲ)或铁(Ⅲ)-二溴苯基荧光酮(DB-PF)-溴化十六烷基二甲基氨基乙酸(CDMAA)体系的显色条件。提出用双波长分光光度法同时测定铝和铁的简便、快速和灵敏的方法,测定铝的波长对为562 ̄648nm,测定铁的波长对为596 ̄551nm,该法用于无机材料立方氮化硼中微量氧化铝和氧化铁的直接测定,结果满意。
Abstract:The computer program design of production ingredient of silicium carbide was carried out, computer real-time control in silicium carbon process was realized.
Abstract:An experimental research on the properties of centrifugal and spray wet collector is given. The collection efficiency, pressure drop,and water removal for different air capacity and different water consumption are reported. The work of some ports of wet c
Lu Yaojiao , Zhang Jishuang , Zhang Li , Liu yuelong
Abstract:采用氨浸、蒸馏、酸化和结晶的工艺方案对难选的氧化铜矿类矿渣进行处理,最后得到五水硫酸铜产品,实验中探讨了氯浸的机理,研究了影响铜浸出率的主要因素,确定了合理的浸出液配比,得出了氨浸、蒸氨、酸化、浓缩和结晶等过程的工艺条件,为从难选氧化铜类矿石及其废渣中回收铜提供了有效的方法和基本工艺参数。
Abstract:Design properties and operation functions of the new special spray system for carriageway marking vehicles are discussed.
Zhang Jing , Zou Ajing , Tong Tiaosheng
Abstract:Based on the function approximation theory, this paper presents a threelayer forward neural network firstly. It is an orthonormal basis SISO neural network model. The neurons' output character in the middle layer is an orthogonal system of polynomial, and
Xiao Yanhong , Peng Chuwu , Zhong Qingchang
Abstract:The interface technique of Network Basic Input/output System(NetBIOS) is discussed, and the design method for reciprocity communication program based on NetBIOS is introduced. The method has been applied to the National "Eight-Five"key science research pr
Abstract:A new concept of short time Energy-Frequency-Value(EFV) is proposed, and a new valid algorithm using short time EFV parameter is designed to evaluate the start-stop points of chinese speech signal. Resolution power is improved between speech signal and ba
Abstract:Based on the theory of composite, the analysis of stability of filamentwound circular cylindrical shells is performed. A algorithm for calculating the critical load under axial pressure is presented.
Abstract:The foundation, earth and superstructure are regarded as a whole. Having calculated the elastic resisting force of earth, the unified calculation is given to both the superstructure and substructure of the many-span hingeless arch bridge or continuous rig
Abstract:In the design of isolated spread footings under individual column for the calculation to define the size, the amount of steel in it, the strength of shear, we should choose separatly the control forces in the all forces combined exerted on the top of foun
Lu Yingping , Qiu Guangyi , Pen Shenbiao
Abstract:The architecture and design method of distributed monitor-control system based on client/server model are put forward. On this basis, the design and implementation of 500 kV transformer substation monitor-control system is present.
Abstract:The structural principle and realized technique of expert system by multi-model integration are derived and applied to the implementation of the expert system for detecting error by multi-model integration. It indicates that the mechanism is reasonable an