Abstract:In order to satisfy the safety of vehicle braking and the fuel economy,a control strategy for regenerative braking force distribution is proposed by considering of battery SOC and braking severity.In addition,a CVT speed ratio control strategy is proposed to operate the motor in the high efficiency area to improve motor generating efficiency.A simulation model of mild hybrid electric vehicle is set up.Simulation result on ECE+EUDC typical driving cycles show that the effectively regenerating energy of braking of hybrid vehicle with CVT is lager than that of hybrid vehicle with MT by 2.5%.

Abstract:Based on. generalized topological figures of kinematical chains, all-loop-link-join-matrix is built, which contains all information of kinematical chains. The constructive principle and method of that matrix is put forward. It is applied in the research of the Isomorphism Identification of kinematical chains. The method and the main process of the Isomorphism Identification of kinematical chains is given out further. Some practical examples are solved by the new method. The matrix contains all loops of kinematical chains, and solves forky problems in the choice of loops. It cannot be constrained by the bars and the freedom of kinematical chains. In the matrix, elements are fewer; the amount of calculation is little, and the speed of calculation is high, so the method can be realized in computer. Because of the use in computer, the method is efficient and reliable. The method is certified by tremendous examples, especially in the Isomorphism Identification of kinematical chains which contain many bars and loops.

Abstract:Facing the complicacies of motorcycle frame and the fact that the motorcycle frame is subjected to ground dynamic loads,considering the interaction between all parts of the motorcycle,the paper takes all these factors into account and builds a detail transient intensity explicit finite element analysis model,to simulate the motorcycle frame's dynamic intensity time variation during the motorcycle working.The studies indicate: according to the result of transient analysis,the paper joins the characteristic of the motorcycle frame and stress distribution status,can make the transient intensity analysis more accurate and offer some reliable suggestions for dynamic intensity design of motorcycle frame.

Abstract:With unique configuration characteristic,dual-clutch transmission(DCT)overcomes the shortcoming of power interruption when shifting in traditional AMT,which results in good power performance,fuel economy and driving comfort,and recently it becomes a new development trend in the field of transmission.Basing on the analysis of starting control principle of DCT,control principle and method that both the dual clutch engaged in the starting process simultaneously with engine constant speed are proposed.And the starting characteristic of the dry dual-clutch transmission is simulated and analyzed,providing theory foundation for the development and research of the dual-clutch transmission.

Abstract:Based on the discussion of MCU technology and its application in online test and process equipment for vehicle & motorcycle's accessory recent years,the paper elaborates the function of online test and process equipment for vehicle & motorcycle's accessory,brings up the hardware and software developing method which is applied to the C8051F020 MCU in electric controlling module of online test and process equipment for magneto.The test equipment has been made and tested the application effect of the MCU technology,on which works on with the real magneto product on line test in the factory,and this detected equipment is stability,unfailing apparatus through the real test.

Abstract:In dynamic reactive power optimization problem(DRPO), action number constraints of discrete variables should be considered.By integrating immune genetic algorithm(IGA) and nonlinear interior point method(NIPM), a hybrid method for DRPO is proposed.First,the original DRPO problem is converted to a continuous optimization problem by relaxing the discrete variables,and the solution is obtained by NIPM.Then,according to the feature of control variables,the original DRPO problem is decomposed into a continuous optimization sub-problem and a discrete optimization sub-problem.The discrete optimization sub-problem is solved by IGA,and the continuous one is solved by NIPM.By solving the two sub-problems alternately,the optimal solution of the DRPO can be obtained.The proposed hybrid method combines advantages of IGA and NIPM,and finds the approximate optimal solution of DRPO.Numerical simulations on the IEEE 14 bus system illustrate that the proposed hybrid method is effective.

Abstract:Distribution Network Structure planning is a complex combinatorial optimization problem,which is difficult to solve properly by using traditional optimization methods.In order to solve this problem,Improved Immune Genetic Algorithm is introduced to the distribution network optimal planning. Improved Immune Genetic Algorithm draws into the immune diversity and antibody's density mechanism to maintain the individual's diversity and remains evolution algorithm's global stochastic searching ability,so it can promote diversity and the whole optimal-searching ability of genetic algorithm.The optimal module takes the minimum annual cost as its object,and the capacity and voltage drop of feeder and the radiation of distribution network as its restrictions.According to the require of radiation of distribution network,the spanning tree of the alternative network is taken as the initial solution to speed up the calculation.And the branch-exchange method is used in designing crossover operator and mutation operator to avoid the radiation checking and enhance the optimizing ability.This algorithm has been illustrated effectively by examples,at the same time,the calculation example demonstrates that,the algorithm has higher calculation speed than the traditional immune genetic algorithm.

Abstract:As one-cycle controlled single-phase active power filter(APF) only can compensate harmonics and reactive currents simultaneously,this paper detects circuit based on instantaneous reactive theory and current traces control circuit based on one-cycle control with harmonic current.The control equations and circuit are set up.The results of simulation verify that this scheme is effective and APFs can compensate harmonic and reactive current according to requirement with the distorted source voltages.

Abstract:Based on the structure of cost factor in transmission lines project and the characteristic of neural networks, the paper shows up using artificial neural networks to estimate the cost of project and provide a method to investigate them. By analyzing the structure of project cost and influence factor, the paper builds both input and output neural cell for cost of transmission line project. The paper builds the model of artificial neural networks and exports the steps of the algorithmic. The project sample is used in history to train and test the model. At last, the model gets satisfactory result and meets the investigation requirement of engineering budgetary estimation. Therefore, the paper provides an impersonality and quick investigation method for budgetary estimation of power projects.

Abstract:In order to obtain the effect rules of control parameters of speed regulator on performance indexes of induction vector-controlled system and the setting rules of control parameters of speed regulator,according to rotor flux oriented control principle,a vector control model of induction motor is established and simulated with the software of Matlab/Simulink.This vector control system is proved that it possesses good static and dynamic performance.This paper analyzes the effect of control parameters' variations of speed regulator on performance indexes and gives simulation results.

Abstract:Image restoration is aimed to recover the original scene from its degraded version. Based on the customary regularization technology and the property of the human visual systems, a new method for image restoration based on adopted regularization technology is presented. This technique is achieved by adopting the parameters of the residual term and the regularization term of each pixel in different part of the image. We can get the parameters of each pixel by computing the local variance at each point. Simulation results demonstrate that the method improves restored image quality and does not slow down the convergence of the evaluation function.

Abstract:In wireless sensor networks that consist of a large number of low-power sensors.Because the sensor's energy is limited,one of the main design is to obtain long system lifetime.The authors firstly analyse LEACH and LEACH-C clustering routing for wireless sensor networks.Aimming at their shortcoming,they present a new routing LEACH-NEW.This routing uses multi ho Pinstead of one hop.At last,they use NS2 to simulate them.Simulation show results that new routing exhibits noticeably longer system lifetime than rouing LEACH and LEACH-C.

Abstract:The paper advances a new calculation method improved by using(2~5)/1.2rm rule which concerns the influence of the fluctuation of molecules on the results of molecular dynamics simulation of the interface.The densities of saturated vapor and liquid of homogeneous phase and the surface tension of inhomogeneous phase of CH4 are obtained by applying this new calculation method.Compared with the traditional molecular dynamics simulation,this method has less error in calculating the surface tension of inhomogeneous phase and takes less calculating time.

Abstract:空调蓄冷是实现电网"移峰填谷"的重要手段.为缩短蓄放冷时间,以R134a为工质,在气体水合物蓄冷循环中加入引射器,研究结果表明:引射器增强了水和R134a气体的混合,在引射器内生成了部分水合物晶核.与无引射循环相比,水合物的成核过冷度降低约2～4 ℃,水合物的生成时间缩短13%～25%,获得了较好的蓄冷效果.并提出"热势"理论对实验现象进行解释,采用引射器后,水合物形成需要的"热势"降低,从而使水合物的成核过冷度和形成时间有明显降低.

Abstract:Lamellar-like reaction microstructures were obtained by means of study on the reaction between magnesium and silica glass. The experimental results show that, the thickness of lamellar continuously decrease from the reaction front to core of sample, the thickness of reaction layer and lamellar increase with the increase of temperature and reaction time. Linear reaction kinetic of reaction between magnesium and silica is aresuh of microcrack existed in lamellar. The whole reaction layer has good bonding with magnesium matrix, and the hardness change gradually from the surface to core of sample indicating that typical gradient material is obtained by the reaction.

Abstract:This paper makes a comparison of high strength concrete prepared with Metakoalin and that prepared with silica fume in terms of their workability, compressive strength , shrinkage and resistance to sulphate attack. The research results indicate that high strength concrete prepared with Metakoalin is better than that prepared with silica fume in terms of workability. When the water to binder ratio is high, concrete prepared with Metakoalin has a greater compressive strength than that prepared with silica fume. In contrast, when the ratio is low, it is the concrete prepared with silica fuma has a higher strenth. Concrete prepared with Metakoalin has a smaller auto -shrinkage and dry-shrinkage than that prepared with silica fume. And concrete prepared with Metakoalin will be just as good as concrete prepared with silica fume in terms of resistance to sulphate attack. It is indicated by the research that Metakoalin has same high activity as silica fume in the preparation of high strength concrete.

Abstract:According to different deformation conditions required in working process for manufacturing of 3104 aluminum alloy, the authors design the simulation experiments of hot rolling process at different deformation temperature and strain rates, analyze the relationships of deformation resistance, flow stress and strain rate, deformation temperature when alloy deformation. Based on experimental data analysis, it was concluded that the dominant factors affecting flow stress were the strain rate and deformation temperature, and the two parameters were also important for deforming process control.

Abstract:传统的仪器仪表软件系统设计中,大多采用单任务顺序机制,存在中断延迟与频繁复位的问题,导致系统的实时性与安全性差,难以满足设计要求.通过引入实时操作系统μC/OS-Ⅱ,给每个核心任务分配不同优先级,利用操作系统提供的消息邮箱服务,由监控任务通过收发消息管理各个任务的正常运行.该方法为仪器仪表的软件系统设计提供了一种任务管理新途径,有利于提高系统的实时性与可靠性.

Abstract:A dual closed-loop automatic cruise control system is proposed according to the properties of the AMT system with cruise control function inside, which is developod by the authors. The human simulated intelligent fuzzy control is applied to the inner loop of throttle position control while the conventional fuzzy control is applied to the outer loop of vehicle speed control. The scheme of the whole control system and the design process of the controller are presented. The experimental results show that with the proposed dual closed-loop control system, the unstable phenomena of engine speed can be eliminated and the throttle control responses fast without buffeting. Moreover, the system has the advantages of easy manipulation and reliable operation. The controller has the advantages of free of accurate mathematical model and easy to carry out and high robust and so on.

Abstract:Mobile Ad Hoc Networks(MANET) is a multi-ho Pand instant self-organized autonomous system of a collection of wireless mobile nodes.A multi-domain full-distributed Certification Authorities system model was proposed founding on its trait of territorial communication.The thesis researched this model and proposes a new model for the interoperability between virtual Certification Authorities named extended recommending trust model based on behavior.It can improve the system's security,retractility and robustness by dynamic trust chain maintenance with feedback information in the actual course.

Abstract:How to effectively locate resources is a very important factor affecting the performance of Grid environment.The authors propose a novel method which utilizes trust relations existed implicitly among network nodes to construct a secure and available resource trust network(SARTN),meanwhile provide the theory and method of SARTN.Combining passively discovery with actively discovery,applying Small World theory,optimized time complexity is achieved, and the performance of Grid resource discovery is promoted.Through analysis,the proposed solution is scalable,secure and efficient in Grid.

Abstract:In order to improve general adaptive capability of algorithm,the new color image segmentation algorithm based on feature divergence and fuzzy theory(FDCIS) is proposed.The algorithm introduces feature divergence and fuzzy dissimilarity function into calculation in order to measure the dissimilarity of feature vector,clusters data by means of feature divergence,and accomplishes the merge of image region.The experimental results demonstrate that the color image segmentation result of the proposed approach reduce calculation on large sample of color image,simply and effectively solve over-segmentation of color image,avoid the dependence of the algorithm on initial condition,and hold favorable consistency in terms of human perception.

Abstract:The DSP(digital signal processor) of TMS320C6000 series,has a special structure VLIW(very long instruc-tion word),which makes the functions of hardware depend on the efficiency of software.Therefore,when DSPs of thisseries are used to design a real-time tracking system,the executing efficiency of software will directly affect the real-timespeciality of the system.Several methods of optimizing software based on C6000 DSPs are researched,including choo-sing compiler options,use of DS Pkey words and intrinsics,data packed and software pipelining.Optimizing software ofthe whole system by using these methods,primely can solve the problem of bad real-time in processing.Consequently,the stability of the whole system is improved.

Abstract:In the electromagnetic minimum coupling model, the authors study the expansion of the finite quantity function in the momenta renormalization e - e loop propagator function, and find that if they use the matrix function expansion they can approach the separation of the finite quantity function, but also can get a strictly analytic solution for one dimension integral calculation method of it. This will give an effective new way to study the question about the exact solving to the renormalization finite quantity function.

Abstract:Interest in DNA computing has increased overwhelmingly since Adleman successfully demonstrated its capability to solve Hamiltonian Path Problem. This article introduces the improving method in virtue of the biological thery of DNA technology, a new molecular algorithm is advanced. After a numerical simulation, the result shows that it avoids the prematurely and lower convergent speed of the classic genetic algorithm, and inherits global search capability, the validity and the speed of the genetic algorithm have been increased. The best result can be obtained in few iterative times. It is fit for solving path planning problem.

Abstract:采用水热法成功合成了ZnO纳米板条.XRD谱表明该条板六方晶系结构,格点对称群为P63 mc(186),格点参数a=3.249 (A),C=5.505 2 (A).SEM图表明该ZnO纳米板条的长度大约为20μm、宽度为50～300 nm,厚度约为30 nm.并详细介绍了合成ZnO纳米板条的实验过程及生长机理.分析结果表明ZnO纳米板条的形状与生长热系统的压力、温度、溶液的pH值以及锌在参加反应前的存在状态有关.

Abstract:采用光子与电子(正电子)的最小电磁耦合模型,获得了光子链图传播子重整化的有限量.对其辐射修正作了相关的计算和讨论,从而得到了电子-正电子碰撞在链近似下的散射截面,并与最低阶的散射截面作了比较.

Abstract:利用支持向量机分析了发生在美国加州中部的2次6级以上地震的震前大地脉动.通过对离地震最近的3个地震台站的地震数据进行震前大地脉动分析,结果表明:支持向量机能有效地区分震前大地异常脉动和平静时期的大地脉动,并且随着地震的临近预报准确率逐渐增加;2次地震的震前大地异常脉动分别始于地震前48 h和12 h.分析了加州CI地震台网内的14个地震台站记录的2003年12月22日发生在加州中部的6.4级地震所观测的震前脉动数据,发现处在震中附近的12个地震台站均观测到震前大地的异常脉动,且距离震中附近的断层越近,监测到震前脉动异常的几率越大.对3个观测站进行连续监测,结果表明:监测到大地震(M≥5)所引发的震前脉动异常的概率大于小地震(M＜5).因此,该方法有望发展成为地震预报的一种有效手段.

Abstract:This paper investigates the biological effect of intracardiac ultrasound irradiating myocardium in dogs.A ultrasound catheter was inserted into the dog's left ventricular chamber and the therapeutic ultrasound energy(1w/cm2,one minute)was delivered.The immediate change of myocardial pathobiology and microstructure were observed,meanwhile hemodynamics was measured.Compared with controls,mitochondria generally little swell,capillary endothelium cell also swell after the dogs were irradiated by ultrasound.In general,intracardiac ultrasound irradiating myocardium can enhance the permeability of capillary and myocardial cell membrane,which may be a new,safe and effective method for interventional ultrasound therapy of cardiovascular disease.

Abstract:应用超声波法提取金银花中的绿原酸.采用紫外分光光度法测定不同提取工艺下制备的提取物中绿原酸的含量,并与传统的水提法、乙醇回流提取法比较,根据绿原酸的得率及抑菌效果确定金银花提取的优化工艺.实验结果表明,超声波法的绿原酸提取率高于水提法、乙醇提取法,但超声波法、水提法及乙醇提取法制备的绿原酸提取物对大肠杆菌的抑菌效果没有明显差异,其最小抑菌浓度(MIC)均为250μg/g.

Abstract:A rapid method for DNA extraction from Pennisetum hybrid was developed.Using the method,leaves of the Pennisetum hybrid was treated by the 0.05 mol NaOH solution and heated in the boiling water for 10 min,followed by the neutralization with TE solution(ph=3.0),and the DNA extraction was used for RAPD-PCR and SSR-PCR analysis.The result indicates.The quality of the DNA by the simplified method is amount to DNA extracted by the CTAB method,and the DNA extracted by this method an meet the requirement of molecular marker analysis based on PCR technology.Combined with the 96-well plate,it can realize the high-throughput DNA extraction.

Abstract:The specific ACC oxidase 1 gene fragment of tomato was cloned and prepared for a probe which was used to hybridize with total RNAs that were extracted from the materials treated with ethylene and different environmental stresses, such as drought, water recovery, flood, wound and temperature, respectively. Northern blot analysis indicated that the expression of LeACO1 was restrained by drought, while strongly induced by water recovery and exogenous ethylene. After treated by flood stress, the expression level of I_eACO1 in leaves had no distinctively changes, while its expression level in stems was rapidly increased. Moreover, the expression of LeACO1 in tomato stems could be induced at the temperature of 37 degree. In addition, wounding had no influence on the expression of LeACO1.

Abstract:To prevent and reduce the threats to the sustainable development of agriculture of Three Gorge Reservoir caused by the serious soil erosion and degradation of sloping cultivated land, seeking the means of suitable utilization of sloping cultivated land is very necessary. Due to the different cultivating modes make great influence to the lost of water, soil, and fertility, aiming at the utilization status and existing problems of sloping cultivated land in Three Gorge Reservoir, the characteristics and respective adaptability of different cultivating modes are analyzed using the relation between different cultivating modes and the water and soil lost of sloping cultivated land. And the research methods of lost of water, soil, and fertility of sloping cultivated land in different cultivating modes are summarized and the perspective of the development, utilization and protection of sloping cultivated land are given as well.

Abstract:因为道路照明亮度水平一般在中间视觉范围内,所以目前依据明视觉光谱光视效率函数确定光源在道路照明条件下光效的方法是不合适的.为了得到道路照明常用光源在中间视觉条件下的光效,正确选择道路照明光源和使道路照明设计达到节能要求,采用中间视觉的实用模型和国内外利用多种方法得到的实验数据,研究高压钠灯和金属卤化物灯(镝灯)这2种道路照明常用光源在中间视觉条件下的光学特性,计算出了这2种光源在中间视觉条件下的光效,分析了在中间视觉条件下的光效随适应亮度水平变化而变化的规律,并提出应根据道路照明所需要的亮度水平选择合适的照明光源.

Abstract:通过室内模拟的方法研究了用自来水作为试验水,当TN/TP在25∶1～4∶1的范围变化时,藻类的产生周期及产生量的变化情况.试验设置了25∶1,20∶1,15∶1,12∶1,10∶1,4∶1 6个比值.为了探讨温度对藻类产生的影响,分别在夏季和冬季做了对比试验.结果表明:当TN/TP在25∶1～12∶1的范围时,藻类的产生周期随TN/TP的减少而缩短,产生量随着TN/TP的减少而增加.在TN/TP为12∶1时藻类的产生周期最短,产生量最多.而TN/TP从12∶1～10∶1时,藻类的产生周期却随TN/TP的减少而增加,产生量随TN/TP的减少而减少.在TN/TP为4∶1时,没有产生藻类.季节对藻类的产生影响比较大.在夏季,藻类的产生周期较短,生产量较多;在冬季,藻类的产生周期较长,生产量相对较少.

Abstract:In Chongqing,the South Hot Spring,Small Hot Spring,and West Hot Spring,do not flow automatically;the flux of North Hot Spring and East Hot Spring Have fallen.The geothermal water did not flow through the geothermal water hole of East Hot Spring.However,the exploitation of "city of hot spring" is plan after 5 year.The paper discusses the hydro-geological conditions,the dynamic hot springs and correlativity among hot springs,analyzes the replenishment conditions and capacity of store water,and the correlativity among the exploitation points of "city of hot spring".It shows that the exploitation of "city of hot spring" is feasible.But in order to exploit "city of hot spring" sustain-ably,the whole yield of "city of hot spring" along with should be planned the every hot spring yield in a geothermal water system of anticline.

Abstract:The relationship between efficiency and fairness of individual income tax is analyzed to get to know which one should be the first. By empirically researching on individual income tax and GD Pand analyzing on economic distributive rate and social unfair cost, the anthors conclude that efficiency of individual tax becomes weak and unfairness of it becomes strong. Thus, individual income tax should be reformed more fairly.

Abstract:Valuation based on the bill of quantifies will change the existing valuation mode of tender and bidding. For the standardized management of tender and bidding for power projects and the inteUigentized information management of power enterprises, it is an inevitable trend of reform to apply the valuation mode based on the bill of quantifies. According to the characteristics of power projects, this paper expounds the working process of the valuation mode based on the bill of quantities and analyzes the goal and function need of the tender and bidding management system. Considering the calculation procedure of the valuation and the quote strategy of quantities bill, the composition of fees for the valuation is settled and the calculation method is designed. To establish the management system of tender and bidding with a valuation based on the bill of quantities is beneficial for the costing reform of power projects and the perfection of the tender and bidding market. Therefore it is of great significance to spread the new management mode of project costing with a valuation based on the bill of quantities.