Three-Effect Catalytic Converter of Vehicle Exhaust and the Latest Development

How to control exhaust of vehicle has become a hot topic in China. In the system of out engine's purification, a three-effect catalytic converter should be the preferential technique undoubtedly because of its maturation and reliability. All new Chinese cars have been now installed a three effect catalytic converter which is imported. However it is not able to hold up a national automobile industry. China should seek its own three effect catalytic converter to fit the specific situation. This paper expounds harm of the exhaust, configuration, catalytic theory, manufacturing processes, deactivation mechanism and others like that on the converter. Particularly, it discuses its demands and some approaches to satisfy ones. Out of that, how China should develop a catalytic converter is indicated which is suitable for the present situation.     

Development and Application of the Modelbase in Water Pollution Control Planning Geographic Information System

Modelbase(MB) takes an important role in Water Pollution Control Planning Geographic Information System(WPCPGIS),which endows the system with functions of water environmental simulation,data analysis,predicting,and providing feasible advices.Modelbase(MB) is the focus of this paper,with VB as the programme language,GeoMedia as the system developing platform and Microsoft Access as the database software.At the same time,the WPCPGIS Modelbase is applied in the water pollution control planning of Daxi River in the Three Gorges Reservoir Region,the water environment system relatively is simulated well,provicling planning-maker and decision-maker numerous useful informations:the distribution of pollution source,the situation of water quality,the environmental capacity of water,the situation of water quality in designing year,etc.The result of Modelbase can also be visually displayed in the digital map of GIS,therefore WPCPGIS can be directly applied to the decision-making of Water Pollution Control Planning.     

Strategy to Control Motor Vehicle Emission Particulate Matter

Particulate matter has become one of the major pollutants causing environmental pollution and affects human health. Motor vehicle particulate matter emissions accounted for more than 60% of the pollutants. At present, research on motor vehicle particulate matter emissions has inadequate systematic control strategies. This paper first analyzes the draw of the motor vehicle particulate matter formation mechanism and influencing factors. According to the statistics of the China Motor Vehicle Pollution Prevention Annual Report, mathematical models of the number of cars, the number of low speed motor vehicles and the number of motor vehicles with particulate matter emissions are presented using MATLAB, and the total amount of motor vehicle particulate emissions in the next five years is predicted. The results show that the motor vehicle particulate emissions increases every year and reached 1.032 2 million tons in 2015. Low-speed vehicle number PM emissions will gradually be reduced slowly, mainly influenced by national policies. Finally, according to the analysis and forecasting results, an effective motor vehicle particulate matter emission control strategy is put forward.     

The Research on Organization Structure of Enterprise Information Engineering

Based on the analysis of the available organization related to informationalization, a new organization structure of enterprise information engineering that suits the situation of China is presented. This organization structure is composed of the leader group of enterprise information engineering, the chief information officer, information center and the group of specialist. The CIO is responsible for information management and knowledge management. The specialist is come from the enterprise and other organization. The responsibility of CIO and information center is also discussed. The organization structure presented in this paper is useful to the enterprise in china.     

Hybrid Electric Vehicle and Its Electrical Drive System

Hybrid electric vehicle (HEV) is a mixture of electric vehicle and conventional vehicle, which has the merits of reducing exhaust gas and the consumption of gasoline HEV is the new development way of automobile industry. This paper introduces HEV, and discusses the essential framework of HEV drive system,the basic types of the electrical drive and their features and the present state of the development at home and abroad.Some key technologies are also proposed which determine the drive and control performance of HEV.     

Current Situation and Prospects of Atrium Smoke Management Research

This paper surveys the current situation of atrium smoke management research at home and abroad. Recent research such as the types and configurations of atrium buildings, atrium smoke management system, smoke exhaust system modes and smoke exhaust effectiveness, atrium smoke filling process and its time constant, pre_stratification and detection, air flow for smoke control between the atrium and adjoining space, sprinkler effect are discussed. Regulations of atrium design and some problems in current national code (Code for Fire Protection Design of Tall Buildings GB50045-95) are also discussed and areas of further research are specified.     

Single-point preview control for unmanned high-speed4WID-4WIS vehicle path tracking

As for the actuation redundancy, strong nonlinearity and uncertainty, a kind of single-point preview control approach for the unmanned high-speed four-wheel-independent-drive & steering (4WID-4WIS) vehicle path tracking is proposed based on the control allocation and the Active Disturbance Rejection Control(ADRC) methods. The vehicle single-point preview system dynamic model for path tracking is built. The control system architecture with the control allocation unit as the core is constructed. The decouple single-point preview ADRC controller for path tracking is designed. Then the quasi-inertial parts used to generate control objectives are proposed and its rationality is discussed. The control allocation solution method for the 4WID-4WIS vehicle path tracking is subsequently presented. The simulations are conducted to illustrate the validity of the single-point preview control method proposed. The results show that the unmanned high-speed 4WID-4WIS vehicle can track the circular arc double-lane change path rapidly and accurately.     

Simulation of The Torque Control System of Motor for Hybrid Vehicle

A strategy for induction motor control based on the grade of errors is developed to improve the performance of hybrid vehicle drive system. The stator flux error, electric magnetic torque error and flux position angle are used as control variables, and rules for the switching states are chosen according to the errors and the principle of the Direct Torquc Control. This strategy improves efficiently the electric magnetic torque response of the system. The result of simulation shows that this strategy is an ideal control strategy of hybrid vehicle, which can make the motor generate the electric magnetic torque efficiently, steadily and quickly.     

The Legal Reflection on Establishing the ModernFinancial Supervision System in China

The marketization, internalization and electronization of financial industry in China are inevitable. Adapted to this situation, the financial supervision has to be strengthened. The modern financial supervision system is the base and guarantee to strengthen the financial supervision; it has the character of unity of supervision organization, perfect instrument of supervision, harmonization of supervision legality and internalization of supervision thought etc. Establishing the modern financial supervision of China should consummate the financial supervision legal institutions in China. Although the laws were constituted, such as and some related regulations, yet cannot conform to the WTO rules and the market economy development and be not enough to structure the legal institution base of the modern financial supervision in China. As a result, it has to be revised further, improved and to work out financial laws and regulations in order to form a modern financial supervision system in our country.     

Design of a Motion Control System of Confocal Scanning Laser Microscope

A confocal scanning laser microscope is presented. Its motion control system is built with the DSP - based motion controller. The system worked on a double CPU structure that includes industrial control computer and motion controller, the system adopt friendly man - machine interface In the design of software. The systems tasks are divided into real - time tasks and no - real - time tasks. The lower computer deals with the real - time tasks such as position control and velocity control and the upper computer is used to deal with the non - real - time tasks. The system structure of con-focal scanning laser microscope and the constitute of motion control system as well as the software is introduced .     

SQLite数据库在嵌入式果蔬保鲜运输车监测系统中的应用

在嵌入式果蔬保鲜运输车监测系统中,需要记录和查询车内温度、湿度等大量数据.本研究使用SQLite开源数据库来实现这些功能,设计了数据库的功能和结构,对数据库进行了移植,将数据库集成到监测系统中.同时,对所设计的SQLite数据库进行了实验验证,结果表明达到了设计目的,可以满足果蔬保鲜运输车监测系统的要求.     

日美国家农业立法的发展趋势及启迪

农政管理法制化,它是政府进行调控、干预、管理、监督农业经济活动的主要手段。日美国家为实施《农业基本法》、《农业法》专门修改有关法律和制定大量相配套的新法律。制定完善农业基本法,为农业各种政策提出一个基本方向;重视农业投入立法,建立完善投入机制;通过农产品市场立法,稳定发展农产品市场;加强自然资源保护和环境及其它方面的立法;制定调整农业经济关系和技术推广及强化农业主体、粮食保护等其他法律。 形成了较为完善的农业法律体系,真正实现了以法治农。     

Concurrent Design of the Petroleum Equipment CAD System

Military petroleum equipment is one of main logistical equipment. The characteristics and organization of the petroleum equipment are analyzed and the design flow chart and concurrent design frame of the petroleum equipment CAD system is built up . The CAD system includes three subsystems, which are engineering subsystem, management subsystem and supporting environmental system. A solid model, assembly structure and strength of oil tank in vehicle are analyzed by integrated CAD/CAE/CAM software I-DEAS. Through concurrent design environment, design efficiency and quality of petroleum equipment are greatly improved.     

Vehicle Monitoring Control and Scheduling Management System in a Scenic Area

In order to help tourists choose satisfying scenic spots, content hotels, convenient lines and convenient vehicles, vehicle monitoring control and scheduling management system in a scenic area is presented, which dispatches vehicle by appointments and the statistic of tourists at a sight spot and recommends the tour line by broadcasting in vehicle. Vehicle monitoring control and scheduling management system in a scenic area, a integrative vehicle management system, is an integration of GPS, GIS, trunked radio system, a management system of booking room and a tourist statistic system at a sight spot.     

近10年尺度成都市空气污染指数变化小波分析

为了找出成都市空气污染的变化规律与影响因素,为空气污染治理提供依据。基于一维连续Meyer小波,对2000年6月底以来近10年成都市逐日空气污染指数(air pollution index, API)的时间序列进行小波分析,得到该市API时间序列的多尺度变化特征、主周期,对影响因素进行了分析。结果表明：成都市API“高—低”交替演化规律明显,主周期约320天,次周期约120天;受盆地地形与气候等条件影响,大气污染呈“冬重夏轻”格局,春季污染次高峰常伴随北方沙尘暴而产生;成都市10年来大气污染状况总体趋向于好转,但局部时段污染加重的现象时有发生。结果表明,小波变换分析对于研究API时间序列的变化规律非常有效,也适用于其他污染物的时间演变规律的研究。     

枣园节肢动物群落生态学研究进展

从枣园群落的物种的基本组成、多样性,种群数量的时空动态,种间相互作用与协同进化等方面对枣园节肢动物生态学研究进行了综述,分析了枣园管理方法、害虫防治方法、耕作制度等生境变化对节肢动物群落结构及多样性的影响,为充分揭示害虫、天敌、植物、生境之间的关系,实现枣园害虫的生态治理提供科学依据。     

从一起种子案件探讨《种子法》对农民特权的规定和法律适用

从甘肃省C县农业行政执法机关依法查处一起农民个人销售假油菜种子"春华501油菜"案例出发,探讨了《中华人民共和国种子法》(以下简称《种子法》)对农民特权的法律规定,从不同法律要素解析了"农民销售、串换自繁自用剩余常规种子"行为合法与违法的界线,为今后各级农业行政执法机关依法管理类似种子案件提供参考和借鉴.     

Accelerated Vehicle Exterior Noise Control of Minicar SC6360B

This paper studyies the method of controlling SC6360B's accelerated vehicle Exterior noise. First, the main noise is found, which is from engine compartment and from exhaust noise by the identification of vehicle noise resource. Second, this paper carris out the farther noise identification experiment on engine and the insert-loss experiment on the exhaust gas muffler. In the end, the authors make sure that the noise is mainly infected by direct leaked noise from engine compartment, radiation-noise caused by the vibration of engine accessories and loud exhaust noise because the muffler has dficient elimination . The corresponding methods has been adopted according to the analysis. Through the test, the noise is lowered 2.5 dBA than it was and reach the new requirement.     

农民合作经济组织内部限制因素与适应性对策研究

针对目前限制农民合作经济组织发展的3个重要因素资金、人力和管理水平缺乏有效供给进行分析。认为农民合作经济组织的发展需要一定的制度空间和合作土壤,只有在政府扶持、制度约束和自我完善等前提下,加强这三方面的有效供给才能使农民合作经济组织在市场竞争中生存和发展。在目前中国市场化进程和社会转型期,通过不断调整内部生产关系并完善内部组织结构,构建适应性农民合作经济组织,以增强其内在的凝聚力和外在的竞争力,减弱外部环境的负面影响。对于现阶段增加农民收入、促进农村可持续发展具有积极推动作用。     

Countermeasure in Consultation for Project Prospecting and Designing after the Access of China to WTO

The consultation in project prospecting and designing plays a very important role in the project construction and it is facing a great challenge after the access of China to WTO. In this paper, the countermeasure in consultation of project prospecting and designing is put forward as follows: change the idea; cultivate and develop a perfect market system; to build a market operating system in keeping with the requirement of international practice and market; to reform and perfect the trade management system; to enhance the level of the project prospecting and designing unit; to change the government's function; to strengthen the quality control to ensure the quality of the project; to form a perfect law and regulation system; to encourage and strengthen the technology reform to set a fine base for the sustainable development and to adjust and work out the encouraging policy to help the trade development.