Abstract:Continuously variable transmission is the ideal transmission mode, the Metal Pushing Continuously Variable Transmission (CVT) is the most mature CVT used in vehicle at present. By studying the transmission mechanism and ratio change characteristics of Metal Pushing Continuously Variable Transmission system, and using the bond graph theory, a bond graph model of continuously variable transmission is established in this paper, and the state space function is derived. Based on the model, The simulation of transmission characteristics of a CVT car is studied, the simulation result shows that the dynamic characteristics of continuously variable transmission could be expressed in this model. The research results can provide the theoretical analysis method and design basis for CVT vehicle.[WT5HZ]

Abstract:Continuously variable transmissions have attracted a great deal of interest in recent years because they shift with very little shock and offer significant advantages of acceleration performance and fuel economy for automobile.The slide angle is very important physical parameter in belt study. It's magnitude expresses the changing of direction of friction force's and makes the distribution of force very complicated. In this paper,the reason of the slide angle has been discussed. The formulae of wrapping angle relation with slide angle is put forward. The magnitude of slide angle is computed by used the Runge Kutta method in different speed ratios. On the basis of study a new descrete numerical analyse approach is proposed to analysis and calculate the tension and thrust of the key work piece's the metal rings and the metal blocks of the metal pushing type continuously variable transmission respectively under different speed ratios and torque ratios. The research result in this paper can be used to analyse the strength of the metal rings and the metal blocks and improve the load capability of the CVT gearbox. [WT5HZ]

Abstract:The rheological property of small intestinal mucus of dogs was studied, and the Casson's rheological model of small intestinal mucus of dogs was obtained in this paper. The results obtained indicate that small intestinal mucus is a kind of Non-Newtonian fluid. Its apparent viscosity decreases with increasing shear rate. When the shear rate is high enough, the apparent viscosity of small intestinal mucus becomes a constant. [WT5HZ]

Abstract:Based on the investigation of engaging points' displacement of gear pump with three idle gears ,the radial components of instantaneous hydraulic pressure and the engaging force of the compound pump are analyzed .The research comes to the conclusions that the instantaneous radial forces acting on center and inner gears can be balanced so long as the center gear has triple times tooth ,and the idle gear of even tooth makes less radial hydraulic pulsation than those of odd ones. [WT5HZ]

Abstract:对于多相流体介质在准直管内有阻流动过程进行了数值分析，讨论了准直管结构参数对磨粒加速效果的影响。理论与试验研究表明，磨粒在准直管入口径加速度很大，经过０．５ｍ的加速距离后基本达到了最大速度。

Abstract:The bi-directional Hybrid Fiber/Coaxial (HFC), which has almost 1GHz frequency bandwidth to transmit information, is the best access mode except Fiber to the Home (FTTH). Initial experiences indicate that real-world HFC networks are susceptible to a variety of radio-frequency impairments that significantly reduce the benefits of using high-speed cable modems. In this paper, the performance of data services in the TCP sub-layer of a HFC network is discussed and an agent server is used to enhance the performance of remote data transmission.[WT5HZ]

Abstract:The R S T algorithms structures of usual digital regulator are researched and the results are given. It has solved the problem of relationship between the digital regulator and dynamical characterization of system. It is a direct and quick algorithm of the digital regulator based on the characteristic equation of control system. This algorithm is especially suitable for numerical simulation of control system which contains digital regulator.[WT5HZ]

Abstract:The problem of computer vision in the vehicle intelligent auxiliary driving system is studied. It discusses the way of image segment based on region growing to follow road and points of its two sides. In this paper, one effective and real time method in highway surface searching and following is presented; it applies the polynomial data fitting to find the both sides of the driving area; with its help,it also can figure out the way stretching correctly, therefore, the vehicle can self anti deviation. It also supplies some valuable discussion on problems existing in its experiments. [WT5HZ]

Abstract:A new fluid artificial neural network circuit model for routing communication traffic is proposed.The features of the model are that it can make use of all topology information of the network,and the optimization calculation is performed with electric circuit,and the most optimum route for communication traffic in the network can be obtained in circuit reaction time.Simulation results indicate that the model is correct and feasible. [WT5HZ]

Abstract:The paper studies the graphical significance of n 1 order adjoint matrix of conduction matrix of an n order connected simple digraph.It introdues the real value vector and its arithmetic of the subgraph and obtains the graphical character of the right inverse of the incidence matrix of the connected simple digraph.And it proposes a method for finding all spanning tree in a connected simple digraph. [WT5HZ]

Abstract:The freezing curve of the Sr modificated Al-11.7%Si eutectic alloy is obtained by experiment,and the solid phase grow speed curve is calculated.The results show parameter that the maximum of solid phase grow speed is an effective parameter for describing Al-Si alloy modification,and the accurate forecasting on modification result can be realized by computer test. [WT5HZ]

Abstract:在试验的基础上，探讨了镧基轻稀土、钇基重稀土对镍铁型铸铁焊缝的石墨化石墨形态的影响。结果显示，镧具有较强的石墨化效果，能减少或消除焊缝组织中的晶间共晶组织，所获得焊缝硬度较低；钇基重稀土具较弱的石墨化效果和较强的石墨球化效果，所获石墨球细小均匀，但易形成晶间共晶组织，使焊缝硬度增高。用气泡理论对实际结果进行了较好的解释。

Abstract:The effect of UPC on energy distribution and each smelting index of blast furnace smelting process under a large amount of injection coal with oxygen enriched by an energy management optimizing and expert prognosis system is discussed.[WT5HZ]

Abstract:Based on the analysis of the phase shift Full Bridge Zero Voltage Switched PWM Converter(FB ZVS PWM converter),a smal signal model is derived,and simulation results of frequency domain and time domain are given.[WT5HZ]

Abstract:In this paper apply the Current Mode Technology,adopt single chip integration data amplifier AMP 01 which have the specificity of electric current feedback,high-speed,wide band frequency,lower noise and higher precision,to Study Piezoelectric effect and arbitrary dispersed specificity about PVDF film.The equation of Piezoelectric specificity is built.Talk over the integration intelligence structure sensor model of tactility which have the specificity of arbitrary dispersed.Discuss application in bionics skin. [WT5HZ]

Abstract:On the basis of test results of meso-scopic fracture process and evolution of microcracks of rock in uniaxial compression,the number and orientation of microcracks at each stress level are obtained.A mathematical model for describing the germination and evolution of microcracks is proposed.The bifurcation and chaos behaviours of the evolution of microcracks and meso-scopic fracture process are studied for the first time with the bifurcation and chaos theory of modern nonlinear science.When the characteristic values which represent the gernimation and closure effect of microcracks take certain values,the evolution of microcracks can be described by the Logistic equation.Therefore,the evolution of microcracks of rock has the bifurcation and chaos characteristics.[WT5HZ]

Abstract:On the basis of modeling with structural stochastic parameters,an idea of probability diagnosis of structral failure is presented.It regards the variation of parameter of fault structure as a perturbation on the perfect structure.Crack fault of the double decker space frame is probability diagnosed as an example.The concept of probability is firstly introduced into the field of failure diagnosis, thus we successfully make an attempt of diagnosing the structures failure from qualilative stage to quantitative stage. [WT5HZ]

Abstract:The connections of frame structure elements at a node are ofen an elastic connection between hinged and rigid.In this paper,the stiffness matrix and the loading transfer matrix of frame element with turn elastic connections is deduced,the cross shear effect has been taken into consideration simultaneously.The stiffness matrices of some bar elements,such as both ends of the bar are hinged or rigid and one end is hinged but the other is rigid,are special cases of the stiffness matrices presented in this paper.After pointing out that the elastic coefficient at a node of a bar element with elastic joint is really a fuzzy quantity,the fuzzy stiffness matrix of the bar element is obtained,and a solution to structural fuzzy finite element equilibrium equations is presented.The fuzzy solution obtained from above is not only containing the solution of ordinary finite element method but also providing some additional informations with practical value.[WT5HZ]

Abstract:The numerical simulations of the casting process for making metal matrix composite by infiltrating melting alloys into a fiber preform arestudied. The evaluation of the infiltration flow, the thermal conduction, the stress and strains of the matrix are studied with finite element method, and the corresponding finite element program for axi-symmetry condition is programmed. The influences of the controllable initial and boundary conditions on the casting process, residual stress and residual plastic strains, and selection of optimal technological parameters are researched. The reliability of the numerical simulation is analyzed by comparison between the calculated results andsimilar experimental data.[WT5HZ]

Abstract:A shear vibrational model applied assemblage of multiple particles is proposed for the seismic response analysis of masonry building with R/C frame wall in the two bottom floors.On the basis of analyses,some problems are discussed,these mainly are:dynamic properties,main factors that have influence on seismic behavior,earthquake resistant reliability of this building under strong earthquake and the rational ratios of lateral rigidity.[WT5HZ]

Abstract:On the basis of theoretical analysis, this article describes the experiment of the absorption of Radon 222 Rn and Thoron 220 Rn in air on active charcoal under condition of varying humidity and temperature. The result of experiment shows that, under the condition of lower humidity, the absorption of 222 Rn reduce as the temperature raises. Since the half life of 220 Rn is short, the influence of the temperature is small. But as the relative humidity raises, the absorption of 222 Rn and 220 Rn reduces significantly.

Abstract:Growth and diffusion models have been introduced in such diverse fields such as psychology, economics, marketing, epidemiology, and biology. In this paper, a new nonlinear combinatorial diffusion model is also proposed to remove deficiencies associated with the current diffusion model such as trend curve models, hybrid models. Furthermore the corresponding back propagation learning algorithm is put forward. Theoretical analysis and forecasting examples all show that the new technique has reinforcement learning properties and universalized capabilities. With respect to combined modeling and forecasting of innovation diffusion time series in nonlinear systems, which have some uncertainties, the methods are feasible and effective.[WT5HZ]

Abstract:Results of numerical simulation for viscous incompressible turbulent flow field over a tiny rearward facing step on circular cylinder are presented.The Domain Subdividing and Matching method and the Simplified SOLA solution are engaged in the simulation. The effects of the step's height,installed position and Reynolds number on the flow field are obtained and discussed. The results show that, if the rearward facing step is installed on the cylinder surface at a suitable point, a reattached boundary layer will be produced at the downstream of the step lagged in a small distance on the cylinder s surface and will re separate from the cylinder s surface.The reattachment point and the re separated point will exchange as the step's height and installed point exchanging.There is an effective reattachment region. If the fluid flow separated from the sharp edge of the rearward step reattaches in the effective region, the re separated point will occur at the downstream of the cross section of the cylinder and the drag will be reduced. This pattern is not directly connected with the flow in laminar nor in turbulent.[WT5HZ]

Abstract:The parallel operation mechanism of 13 Bit lattice gas automata model, which can quickly compute and include more sites, is presented. Via coding and computing for particles of sites by bit, the parallel computing is achieved by transfering the particles propagation and collision into its backup and reloading. This mechanism can simulate correctly and validly some fluid motion with complex geometry boundary, such as flow through coke porous media. [WT5HZ]

Abstract:Using the equivariant Ljusternik-Schnirelmann theory,the estimates of the lower bound of functional values on collision sets and the estimates of the critical values for the variational functional,we obtain some results in the large concerning multiple geometrically distinct noncollinear periodic solutions of any fixed mininal period for a class of planar N body type problems. [WT5HZ]

Abstract:将神经网络用于线性系统方程的求解问题，但所用的准则函数不是通常的最小二乘函数而是ｌ∞范数准则函数，即Ｅ∞（ｘ）＝ｍａｘ／ｘ∈Ｒ＾ｎ｛｜ｒｉ（ｘ）｜｝或Ｅ∞（ｘ）＝ｍａｘ／ｘ∈Ｒ＾ｎ｛１／２ｒ＾２ｉ（ｘ）｝。先将Ｅ∞（ｘ）光滑化，再利用神经网络来求解无约束光滑优化问题。并讨论了网络的收敛性和稳定性。

Abstract:Various detecting methods for poisonous fake wine are studied and their advantages and disadvantages are analysed. On the base of these works the paper putsforwarda new detecting method and verifies it by some experiments. After the chemical reaction, components of sampleshould be split on the filmy board,methanolshould be oxidized by potassium permanganateand turn into formaldehydewhich should change its color with sulfurous acid. The change can be detected by sensitive-color device and detecting result can determineif contentof methanolin wine is exceeding the standard. [WT5HZ]

Abstract:By the study of the technics of dry method milling,glazing and once moulding between matrix and glazing,and with the X rays and SEA methods, it is testified that using the new technics is in reasonable and advanced by the study of the microstructure and macroscopieial performance and character.The performance of the product is stable and the link between matrix and glazing is excellent. [WT5HZ]

Abstract:The circumstances of rich data and lack of knowledge lead to the emergence of technology of data warehouse and data mining, and arouse the interests of people in various fields. This paper gives a comprehensive introduction about the basic ideas of data warehouse and data mining, key techniques, and the content of the main researches. This paper have also discussed the characteristics as well as developing potential of the combination of data warehouse and data mining.[WT5HZ]

Abstract:The Postal Transportation Problem(PTP)is a very complex transportation problem. It has not any very effective solving method at present. This paper systemically analyze and define the problem according to its range, capability and time limit restrictions, random factors, dynamic factors, preferential factors, optimization objectives, cost composing, and so on. The multiobjective optimization mathematical modelof PTP is established and its relational problems are also analyzed. And the model is made up of 12 kinds of restraint conditions and three optimization objectives which are the whole transportation cost, average transportation time of mail and average use ratio of cars. This will be in favor of further study of PTP. The successful development of a logistics scheduling and dispatching optimization software based on the model and its corresponding algorithm proves the correctness of the model.[WT5HZ]

Abstract:The quantitative method for cysteamine was discussed.Iodimetry was applied to determine cysteamine products,2 mercapto thiazoline saturated cysteamine,and 2 mercapto thrazoline saturated hydrochloric solution(blank).Then the experimental data were analyzed by means of statistics,and an easily and effectively quantitative method was set up. [WT5HZ]