Abstract:The design method on the hydraulic control system is one of the key technologies of a metal V-belt continuously variable transmission(CVT).It can change the ratio of the transmission system by adjusting the pushing force of the pulley.By analyzing the structure characteristics and force relations,the design method of an important parameter of the CVT hydraulic system and the rate of transmission ratio,are put forward by simulating to the emblematical driving models.The structure parameters of the hydraulic system is gotten and validated by simulation on specific driving model.An effective design method is provided to develop the continuously variable transmission system.

Abstract:The work device of hydraulic excavator is considered as subject investigated, the parallel and distributing strategy to solve dynamic characteristic of complicated mechanical structure is put forward. When computing process isinefficient can be overcome by using high performance computing technology. The strategy can provide an effective approach to carry out system mechanical product generalized optimize.

Abstract:论述了在不同温度下对AM60B镁合金铸锭单向压缩的塑性变形试验分析.结果表明:室温下镁合金AM60B的变形能力有限,在较小的变形量下即产生裂纹;在300～400 ℃范围内,AM60B表现出良好的塑性,且温度越高,塑性越好;经过压缩变形后,试样硬度明显提高.

Abstract:When measuring, virtual instruments are inevitable to cause error damaging the precision of measuring resuits. It presents error constitution, methods of error transfer and synthesis of virtual measuring instrument. Based on the analysis of error transfer and synthesis of virtual measuring tual measuring instrument and gets the method of dealing instrument, it generalizes the error constitution formula of virwith errors. Then, errors can be modifyed.

Abstract:For a ISA HEV,the transmission gear shaft dynamic model is established and the 3-D modal analysis is carfled out. Based on above work, the structure of the gear shaft is analysed, then the diameter of the gear shaft is taken as a design variable. With first order optimization,low inherent frequencies are optimized in order to avoid resonance and decrease NVH.

Abstract:A duty valve drove hydraulic brake servo system of HEV(hybrid electric vehicle) power transmission test rig is studied.The brake performance depends on the responses of the pressure control.A PI controller is designed through analyzing the working characterizes of the hydraulic brake system and duty valve by using rapid control prototype(RCP) tool-dSPACE,all the model and control code are successfully download to the AutoBox,and rapid control prototype experiment shows that the benefits of developing duty valve drove hydraulic brake servo system with good performance has been achieved.

Abstract:The key of motor control is to control motor's torque essentially.Direct torque control,which emerged after the field-oriented control,directly stresses the instantaneous torque control of induction machine,which avoids some problems existing in field-oriented control,thus,it gets more attention.In conventional direct torque control system,switch vector is selected directly by the errors of stator flux-linkage and torque,after introducing fuzzy logic,optimal selecting switch state is realized by various strategies by distinguishing the grade of the errors of stator flux-linkage and torque,the dynamic and steady state performances of induction motors are improved.This paper presents a design method of the fuzzy controller.Simulation results demonstrate that it is effective,the stator currents pulsation at start-up and the torque pulsation are decreased.

Abstract:Phase-shifted full-bridge(FB) soft-switching converters are developing form the basic phase-shifted FB-ZVS-PWM converter to phase-shifted FB-ZVZCS-PWM converter and phase-shifted FB-ZCS-PWM converter,to a series of the other new phase-shifted full-bridge circuits,which make up of the converters with developmental and useful foreground.The topology structures,operation characteristics,as well as their merits and demerits are compared and analyzed.The improved phase-shifted FB-ZVS-PWM converter enlarge the load range of ZVS in lag-arm.Phase-shifted FB-ZVZCS-PWM converter solves the problem mentioned above,and insulated gate bipolar transistor(IGBT) is fit for the lag-arm.Phase-shifted FB-ZCS-PWM converter could achieve ZCS in every power tube,and is used in high-power occasion.What's more,the developmental trend of soft-switching converting technic without resonance network is pointed out.

Abstract:The optimal operation in hydroelectric station unit is me opumum problem,which include unit commitment,load distribution and unit maintenance. The authors research the optimal operation in units in hydroelectric station of Gezhouba by the genetic algorithm and dynamic programming to satisfy the demand of economic operation of Gezhouba. They arrange and organize the program of the units in r6ason to go for the better benefit and satisfies security, credibihty and high quality of electric production . These methods can work out the most optimum result. When the head of water and the flux is confirmed they can distribute the flux to the units to realize the optimal operation of the scheduling in Gezhotlba.

Abstract:Based on the second method of Lyapunov stability theory, the stability of non-equilibrium state for multiphase system is analysed. The results show that the dV/dt is always less than zero ff the V-function, which is defined as the entropy generation of the system, is greater than zero for the non-equilibrium state in linear zone, and the system is absolutely stable. On the other hand, the stability of the system in non-linear zone is determined with the symbol of dV/dt.

Abstract:Mg-Ni基储氢合金以其比容量高、成本低而倍受关注.采用感应熔炼法,在不高于900 ℃的温度下成功制备出Mg2Ni合金,X射线衍射及金相组织分析表明,合金中主相为Mg2Ni.对制备出的Mg2Ni合金进行气态吸放氢性能测试,结果表明,经粉碎后的合金粉体经第1次活化,吸氢量为3.15 wt%,2次活化后吸氢量达到3.49 wt%,接近其理论值,而合金块体在第2次活化后的吸氢量远小于合金粉体的吸氢量,且第3次活化后未见明显增大.

Abstract:Employing the stability theory of linear non-autonomous impulsive differential equations, some sufficient conditions for the synchronization of unified chaotic systems and Lorenz chaotic systems are derived. This method can be applied to most of chaotic systems. The numerical simulations also demonstrate the efficiency of impulsive control.

Abstract:Incomplete information of the poker games make the research progress lags behind the chess games in AI. Although it is still very difficult to find a fast algorithm to solve a poker game with complete information which is the foundation of some advance researches. This paper gives a standard way to encode and store a game state into hash table, so the memory of hash table can be used more effectively and higher hit rate can be gotten in Scout search meth od. With the new encoding method, the total expanding leaf nodes reduces by around 5%.

Abstract:Along with the rapid increase in information of internet,the information research technology was confronted with more and more challenge.Traditional WEB search engine is not satisfied with users' special demand any more,therefore there comes forth a trend to join intelligent technique with Web search engine.This paper puts forward a Multi-agent based architecture for WEB search engine based on traditional architecture.An effective securities business search engine,which is can satisfy user's especial request which is created by means of intelligent technique.If the system is used in many other special fields,good results of information research can also be acquired.

Abstract:The sole note is a regular cyclical signal. The best frequency domain resolution can be gotten with FFT. However, the harmonic components of the note are extremely rich, so FFT is unable to examine the fundamental frequency accurately. DWT can decompose the signal to low pass rapidly,and has a smooth low frequency approximation. This article brings forward DWT and FFT union musical note recognition method, which realizes the precise frequency recognition of the musical note and is an expected method.

Abstract:提出了一种新颖的主动队列管理算法--基于TTL(Time to Live)的ECN及BECN的综合.ECN和BECN在指示拥塞的过程中各有优缺点,二者的综合可望提高拥塞指示的效率.TTL是在网络上传输的分组必须具有的属性,且每一次转发都要经过检测,以决定该分组的处理方式--转发或丢弃.通过对TTL的判断来决定网络拥塞指示的方式--ECN或BECN.建立了一个数学模型,对模型的分析结果表明该算法对控制拥塞、提高网络吞吐量等有更好的效果.在NS环境下对算法进行了仿真,仿真结果支持了理论分析.

Abstract:This paper discusses how to design and implement a security subsystem, which based on the Role-based Access Control technology. By taking a teaching web system as a practical example, the paper establishes an access control matrix, so dynamic menu, page jump, and data access control are loaded. The experimental shows that, the system can controls the access authorized data, and to avoid the illegality access. The practicability and robust in the system is evident.

Abstract:Based on the geometrical optics and vector diffraction theory, mode converter is studied the output mode of which is converted to line polarization Gauss beam of gyrotron and high power microwave device, the radiation characteristic of quasi-optical mode conversion is simulated. Quasi gauss mode HEll can be realized with Vlasov launcher and quasi-optical reflector.

Abstract:In the coherent M-ary Orthogonal Code Spread-Spectrum System,the maximal value decision of the output signals from the multiple matched filters is needed before channel decoding.Based on the Log-likelihood Radio(LLR),a suboptimal soft-information extracting scheme in the M-ary Orthogonal Code Spread-spectrum System is proposed and the performance of the system in the AWGN channel is analyzed.Then the architecture of the system implemented on FPGA is presented.The practical results indicate that the scheme is effective and can be implemented on FPGA easily and conveniently.

Abstract:In view of color image characteristic, the paper improves the zero algorithm in the application of concrete algorithm, draws a new algorithm-incomplete scanning method, which is applied to color image compression. The authorsconvert color image from the RGB space into luminance-chrominance YUV space, then compress the converted image to encode/decode. Theoretical analysis and simulation experiment indicate that the compression ratio and encoding/decoding speed are increased, at the sase time the quality of restored image is guaranteed.

Abstract:To guarantee the safety and reliability of steam-injection boiler, the real-time supervisory control system of steam-injection boiler is developed. This system consists of host computer and slave computer two levels system. The run parameters and run status of steam boiler are automatic supervisory with the host computer. The important parameters acquisition and manual adjustment to run parameters of steam boiler are accomplished by the slave computer. The practice proves the validity of this system.

Abstract:Engineering designed mode has entered a new stage because of the development of network. New calculating system based on network appeared. By analyzing the common B/S architecture, this paper brings forward an reformative architecture based on Web services and ASP. NET in order to build the new mode of engineering calculation. It can fully implement the sharing of the resources and provide the engineering designers a wonderful calculating environment, and the working eifficiency of designers can be enhanced.

Abstract:In today's manufacturing enterprise,material,energy and information are three basic elements,and energy system is a sub-system in it.Based on the static input-output relationship derived from the energy flow and material flow net diagram,W.Leontief type dynamic input-output model with one step delay is developed.With LQR optimal control method,a dynamic input-output energy system of manufacturing enterprise has been built for planning of production capacities,the distribution of resources,and the dynamic balancing of system.An illustrated example is presented.

Abstract:The alarm system in controlling the automobile speed is presented, without change of the original structure, and the design scheme of the system implements sampling, measurement, computing, real-time alarm and delay-time control for the automobile speed according to the safety of the automobile driving. Then, the speed is randomly stored so as to insure the correct data and to effectively analyze the data. Especially, the key techniques of the speed measurement and the refresh storage are pesented in datail in the system.

Abstract:The crystal polymer's correlation function of threephase structure with linear electron density interphase layers is calculated.The corresponding relation about invariant,interphase layers' thickness and scatter figure are found.The conclusions are compared with that G.R.Strobl got in the extension from two-phase model to three-phase model.Strobl's errors are pointed out and corrected the errors in the extension.The authors get long period,lamellar thickness,invariant and interphase layers' thickness from the correlation function figure of three-phase model,but the conclusion is that the definitions of lamellar thickness and invariant are not the same as those in the two-phase structure.

Abstract:紫锥菊提取物属于目前国际上流行的草本植物药,其主要运用于增强免疫力等方面.以加拿大狭叶紫锥菊愈伤组织为材料,研究影响其原生质体分离的因素,结果表明选用浅黄绿色、质地均匀且呈疏松颗粒状的紫锥菊愈伤组织易游离出原生质体;采用纤维素酶浓度为2.0%,果胶酶浓度为1.0%,半纤维素酶浓度为0.5%,甘露醇浓度为0.7 mol·L-1的酶液配方酶解时间为8 h时,原生质体的产量为每克鲜重含50.0×104个.由此归纳出一套完整的愈伤组织诱导,组织培养,原生质体分离纯化,原生质体鉴定及计数的方法.

Abstract:The research of plant genome has been transferred from the structural genomics focusing on determining the complete sequences of the genome to the functional genomics focusing on elucidating the biological function of genes. Now cloning differential expressed genes is of prime interest in molecular biology. In the past ten years, some methods used for studying changes of gene expression in plants have been developed. The authors review the developments of techniques and studies for the plants related gene cloning in RNA level and expound their principles, technical routes, improved methods, advantages and defects. Moreover, their applications and prospects in plants related studies are discussed.

Abstract:Based According to the on the careful investigation in site of highway tunnel, the classification of tunnel disease is obtained. , design and construction of tunnel, in relation to the distribution of stress and loading of tunnel by numerical analysis and back analysis, the existing condition and reasons of tunnel diseases are carefully analyzed. At the same time, the disease management methods are provided, which are important to guide similar tur/nel to search diseases reasons and manage diseases.

Abstract:Considering the character of slope resistant engineering invest benefit, in line with security and economy balmaced, combining initial investment and anticipated hazard loss, disaster resistant engineering should be satisfied with the criterion of minimum cost. Decision tree model is adopted as analyzing means, and risk decision-making of slope design is carried out. Project input-output radio adopting dynamic analysis can reflect project investment benefit more accurately. At last this paper analyzes some questions in process of slope resistant engineering with benefits enumerate.

Abstract:The paper aims at ANN disaster-possibility identifying of Wujiawan Landslide. ANN construction and parameter setup are analyzed for landslide disaster identifying by ANN, based on a typical landslide-Wujiawan landslide in Wanzhou urban, by confirming evaluation factor and establishing sample data. The ANN model is trained by the similar landslide sample in Wanzhou urban, then the disaster is identified in several different conditions of Wujiawan landslide. Finally, the same conclusion are found by analyzing combined ANN Disaster-Identifying and limit-equilibrium-method calculation. The results show that AAN is accurate and satisfied to be used landslide disaster-possibility identifying.

Abstract:From the view of economic early warning, the authors summarize the developing actuality and particular flow and methods combined with the living study to Guiyang and explaining its unique advantages. This system and its theory can be used widely to the other cities or regions of China in implementing and studying the real estate early warning system.

Abstract:The deposition effects of the total phosphorous(TP) and phosphate(PO_(4)-P)in TEDA Reuse Water & Landscape River are studied,and the sedimentation reason of TP,PO_(4)-P are analyzed,then the settling curve of TP and PO_(4)-P is drawn in recycled water which is changed with time.When the reuse water is used as the water source,TP and PO_(4)-P deposit bottom silt.In laboratory simulation test,the needed time of the max deposition ratio for TP and PO_(4)-P is 1 day,meanwhile,the max deposition ratio of TP and PO_(4)-P are 95.15%,96.56% respectively.According to practical observation,the needed time of the deposition ratio is 7.5 days,longer for TP and PO_(4)-P to reach max deposition level than in the laboratory test,and the deposition ratio of the TP and PO_(4)-P is 85.10% and 87.43% respectively, lower than in the laboratory test.

Abstract:The paper aims to investigate natural frequency of delaminated advanced grid stiffened composite plates by hump resonance method.The composite laminated plate element and the rib element are adapted to simulate the laminated plate and the ribs.Based on the composite laminated plate and beam element model considering first-order shear effect,a damping model on the basis of Rayleigh damping model in conjunction with Adams' strain energy method(MSE) and a Hertz nonlinear dynamic contact model to avoid the overlap and penetration phenomenon between the upper and lower sub-laminates at the delaminated region.A numerical analysis method of dynamic response for the delaminated composite plates is carried out by precise time-integration method,and then the natural frequencies are achieved when the dynamic deflections reach the hump peak.For the frequency-domain analysis provided in the former research papers,it is a difficult problem to avoid the embedded phenomenon in the mode shapes at the delamination zone,while in the current time-domain analysis,the embedded phenomenon can be successfully overcome by using nonlinear contact model.By vibration excitation test,the specimens were excited by different excited frequency and the amplitude frequency response characteristics obtained are used to extract the frequency.The extracted frequencies of the narrow delaminated composite plates measured,which agrees well with the predicted natural frequencies.

Abstract:ANSYS program is applied to the numerical analysis on the space flexibility and elastoplasticity of a spiral(V-notch),which suggests that: 1)The stress distribution is uneven inside the spiral V-notch as tensile stress is focused near the tip of the notch.2)Tensile stress and compressive stress areas are located alternatively inside the whole notch,the stress changes slower at a point farther from a crack tip,and much faster at a nearer point.3)Elastoplasticity study finds that there exists at the tip of the crack a plastic zone that expand and extend to the direction of the tip with increase load so that cracks initiate at the tip of the notch and extend in the direction of the tip.

Abstract:The article constructs a game model between asset management corporation and enterprises during the course of operation of debt-to-equity swaps in the state-owned enterprises, which is theoretical foundation to perfect the operation function of asset management corporation, and with it to annotate the rational causes which the operational course of the debt-to-equity swap was not advancing, and gives a primary explain that a deviation appears between the reality of operation of debt-to-equity swaps and theoretical anticipation. Based on aforementioned viewpoints, the article brings forward countermeasures to perfect operation of debt-to-equity swaps for asset management corporation finally.

Abstract:The authors summarize the emerging backgroun technology, development trend of green remanufacture. The d, definition, current situation in China and aboard, key signification to establish industrialization integration-base of automobile and motorcycle of Chongqing. According as current scale, technological level, development trend of automobile and motorcycle industry of Chongqing, the feasibility to establish industrialization remanufacture-base of automobile and motorcycle of Chongqing is analyzed.

Abstract:By the monthly economic date about Chinese automobile and other relevant date,an analysis is first conducted that whether the automobile stock of China can significantly adjust the demand of automobile market or not.Second,a regression model and a time-series model which are used to forecast the demand of automobile of China are founded.Third,the income elasticity and price elasticity about the monthly demand of automobile of China are also analyzed.Conclusions are that automobile stock of China can't significantly adjust the automobile demand,that lag-two income of consumer and automobile price significantly affect the monthly demand of automobile,and that the price elasticity of automobile demand is big than lag-two income elasticity.At last,some proposal is put forward.

Abstract:Modern economy depends on money,but money is created by the bank system.So,as the main body of finance institution in one state,banks have the importance influence upon the economy of one country.Center bank constitutes the money policy and executes the money policy in one country,then it is the core of the whole financial system.But the validity for the money policy must rely on the activity of commercial banks to the money policy.Being based on the money policy transmitting mechanism,this Article analyzes how to establish a kind of bargain relation between Center bank and commercial bank so that commercial bank may work hard toward the aim of the money policy for the center bank under the asymmetric information,which was the bases of the Commercial Banks' innovation.

Abstract:This paper makes an economic analysis of the Financial Supporting Policy to invite outside investments in the Economic Development Zones(EDZs),deduces the formula of the optimal ratio of the quantity of financial support to the local financial income and draws figures of the curve.The EDZs should consider the effectiveness of financial subsidy before they use this policy;technical progress is the precondition of subsidy.The Financial Supporting Policy should first help those industries that can promote local economic growth best get subsidy.Under the conditions of low initial economic level and subsidy combining with other preferred policies,the ratio of financial subsidy should reduce;properly by prolonging the time limit and the EDZs' paying more attention to long-run objection lead to lower subsidy ratio.

Abstract:Chongqing, the old industry base of China, whose main economic support is mass manufacturing that make up of traditional industries such as mechanism, enginery and metallurgy. This mass has come into being middle system organizations whose core is some big firms like Changan and Jialing, in addition, many related kit factories act as branches. These organizations have agility operation and high efficiency, but there are problems because of technology asymmetry which leads to low efficiency of the industry gathers supply chain when facing high informationization market cornpetition. By analyzing the character and deficiency of the Chongqing manufacturing industry gathers, through providing a framework of information service platform to enhance the mid-rain enterprises innovation capability and complex competition. Research on building method and operation method of enterprises informationization platform has been done successfully.

Abstract:Loyalty is a good character that a person is loyal to his enterprise's goal,symbol and aim.The employee who has high loyalty is a very important basement to efficiency and competency to the development for the enterprises.The authors use ingredient analysis method to deal with the data collected from questionnaires done by 225 enterprise employees,and put forward Eight-factor model of loyalty education solution to enterprise employees.Based on this model,the study compares the differences of the eight factors to enterprise male and female employees and employees in both state-owned enterprise and privately owned enterprise,but also discovers the differences between the employees mentioned above.