bluuebunny/crossref_metadata_2025 huggingface dataset:
Research of Basic Computer Course Based on Computational Thinking
Authors: Wang Lin
Published: September 2014

Computational thinking is one of the top topics of research in basic computer course. This paper proposed that training computational thinking is the key task of basic computer course according to the status of basic computer course. This paper also focuses on how to develop computational thinking of college students and proposed several suggestions for the reformation of basic computer course. It is concluded that training of thinking ability should be added into the teaching to improve the comprehensive quality and ability of college students and excavate students’ learning potential and enhance their academic competitiveness.
The Study of Influencing Factors of the Online Banking Information Security Products Service Quality
Authors: Lei Ting , Wang Yan
Published: September 2014

The service quality of the online banking information security product has become the important bottleneck of every financial institution to further explore online market and development potential customers. Through study the domestic and overseas scholars about the quality of service fields putting the part of the research extends to the service quality of the online banking information security product measurement process, and trying to build the measurement model suit for the service quality of the online banking information security product. We survey the university student of shaanxi Xian and use the internet to investigation while using the factor analysis and multiple regression method to verify the evaluation model and assessment index of rationalities. We extract the main influence factors of the service quality of the online bank information security products, preceding a deeper analysis. Finally, we derive the main influence factor of the service quality of the online bank information security products.
Cloud Computing Application in Medical Education
Authors: Huang You Liang , Liu Ren Quan , Ma Xing Guang , Yin Xiao Xuan
Published: September 2014

With the development of information technology, cloud computing is growing rapidly in many area, including education. The school or the teacher can use the cloud computing provide education, realize the sharing of curriculum resoures.The cloud platform to build personalized information teaching environment, can effectively support the teachers’ teaching and students’ active learning and promote the development of students’ thinking ability and wisdom, improve the quality of education and teaching. This paper discusses the current development of education services, the concept of cloud computing and the use of cloud computing in the education, and puts forward a online education service framework based on cloud computing.Finally,the application of the framework are briefly described.
"E-Learning" Thinking and Application of Teaching Mode in Colleges and Universities
Authors: Li Bing Yue , Nie Sen
Published: September 2014

E - learning is an indispensable part of modern education in colleges and universities, with the continuous development of the Internet has brought new opportunities for education, E - learning can use a new way of learning to make people more convenient to master all kinds of cultural knowledge. But the author in the survey found that there has been a very strongly conflicts between E – learning, as a new concept of education, and the traditional concepts of education. Therefore, how to do E-learning this mode of education is also our concern.
Development of Logistics Tracking System Based on RFID, GPS, GPRS
Authors: Xu Da Wei , Deng Lei Lei , Ren Shan
Published: September 2014

Introduced based on RFID, GPS, GPRS technology, logistics tracking system. The system uses a combination of GPRS data transmission PC monitor management , the use of low-power control chip STM32F103RBT fusion technology GPS technology , GPRS and ARM , and other industrial areas , to achieve the objects of the logistics chain in real-time tracking , logistics links ensure that items do not lost and replaced.
Research of Branded Apparel Collaborative Design Based on Product Platform
Authors: Zhang Chao Yang
Published: September 2014

In the context of Chinese textile and apparel industry revitalization, innovation and technology reformation, building Chinese independent brand system, improving the branded fashion enterprise R&D capabilities by IT integration has become essential for the apparel industry competition. In this context, we focus on introducing the branded apparel collaborative design, the product platform and the methods of branded apparel collaborative based on product platform.
Research on Smartphone Application Malicious Behavior Evaluation Using Fuzzy Analytical Hierarchy Process
Authors: Wu Yin He , Li Dai Ping
Published: September 2014

Due to the highly developed modern technology,Smart phones and other mobile devices are become more and more universal. Most of those devices are used to process or store sensitive and confidential data.Consequently,it may cause many problems,such as privacy disclosure,mobile phone virus,spyware,etc. In order to solve those issues,We need a smart phone security evaluation system to evaluate malicious applications.In this paper we starting from classifying the effects of attack caused by all kinds of malicious mobile applications and analyzed malicious code database.according to the consequence those applications have made, we pointed that a smartphone application`s malicious behaviour can be divided into five classifications.and based on this classification,we proposed a smartphone application security evaluation system and by using Fuzzy Analytical Hierarchy Process to determine the security target weight.
Analysis of Characteristics and the Structure of the College Students' Entrepreneurial Quality
Authors: Li Yue
Published: September 2014

College students' entrepreneurship education, as education forms with the improvement of students' entrepreneurial quality as the core, is an integral part of the implementation of quality education of colleges and universities. To better play the role of entrepreneurship education and develop students' entrepreneurial quality, it needs to have a comprehensive understanding and awareness of entrepreneurial quality. This paper, on the basis of the summary of existing point of the entrepreneurial qualities, has proposed the structural model of college students entrepreneurial quality through questionnaire survey and other methods, and analyzed the weight of each index in the model in detail, attempting to be helpful for the development of future entrepreneurship education in colleges and universities. Increasingly serious problem of university students' employment promotes higher education in talent training mode to make a new attempt and exploration to cultivate students' entrepreneurial quality concerned. so this article analyzes the structure of the entrepreneurship quality for college students.
Numerical Simulation of the Harmonic Response of Front Frame for FRSTV
Authors: Zhang Hong
Published: September 2014

In order to eliminate the resonant of engine bracket and front frame caused by the vibration during engine work period, the damping bracket was introduced between front frame and explosion-proof diesel engine for Framework-type Roof-Supporter Transport Vehicle (FRSTV). The harmonic response analysis of front frame was conducted with ANSYS Workbench. The results can be used for the vibration prediction.
Research on Emergency Management Methods of Incident Contingency in City Administration
Authors: Lou Xiao Chun , Yu Xie
Published: September 2014

In recent years, the situation that a great number of cities in our country are facing sudden-onset natural disasters has become increasingly serious. And therefore, it has a very important significance to establish a rational and effective emergency management and effective response to all types of sudden-onset natural disasters in our cities. This article firstly classifies the urban disasters, summarizes its dangers, and analyzes the formation for the urban disasters. It elaborates the further approaches and strategies of the urban disaster contingency management. Among them, contingency management methods include the Global Positioning Systems (GPS) and Remote Sensing technologies (RS). And emergency management strategies are analyzed from prevention and preparation, formulating contingency plans, practicing emergency plans and other aspects. Additionally, the process is deduced from the practical application and has strong value to be promoted.
Personal Credit Evaluation System Based on Decision Tree
Authors: Tan Li Na , Wu Hai Long
Published: September 2014

This paper analyzed personal credit evaluation system in rural area based on decision tree model. Firstly, it reviewed some references about credit evaluation methods and found that decision tree was a linear adaptive data-driven model with induction ability and a wide range of function approximation ability so that it could be applied into personal credit evaluation. Secondly, decision tree classified data samples consisting of two phases: constructing decision tree model and then classification stage. The first stage was to train data samples to establish a decision tree, and this process was divided into three steps which included feature selection, node splitting and tree pruning. The second stage was to put test samples into the established decision tree, and let it to classify from a new set of data. After that, it took advantage of the model to evaluate personal credit and selected the twenty indicators. The results showed that household assets, net assets and the existing current account balance were the most important three indicators for evaluating personal credit in rural area.
Dynamic Mechanism of Effect Factors for Railway Passenger Volume
Authors: Wang Chen
Published: September 2014

The railway passenger volume is a non-linear, dynamic and complicated issue which is affected by many factors. Using the principle and method of system dynamic, this paper has analyzed the effect factors for railway passenger volume, including the economic factors, rail infrastructure factors and travel choice behavior factor. Considering about the causality among the factors, a dynamic model has been built based on the relevant data from . At the same time, the model has been run for making predictions (2014-2030). This paper focuses on the influences caused by the fare increase and the increase of GDP growth rate.
Empirical Research on Corelation between Energy Resources Constraints and Economic Growth and the Shift of Economic Development Mode
Authors: Wang Kun
Published: September 2014

In the process of developing regional economy, economy is limited a lot by energy resources. In this paper, we use indices of coal price, industrial structure, marketization, and an economic model of correlation between energy resources constraints and economic growth, as well as put forward a proposal for eliminating negative effects of energy resources constraints and speeding up the shift of the economic development mode.
Comparative Study on Eco Tourism Development Potential between the Yellow River Delta and the Nansi Lake Wetland Nature Reserve
Authors: Tian Su Qin , Zhang Wei
Published: September 2014

The wetland nature reserve has the contradiction between tourism development and environmental protection. Eco tourism is the route one must take to realize the tourism sustainable development of area wetland nature reserve. Measuring the potential development of ecological tourism through quantitative method has great reference value and guiding significance for promoting the rational tourism planning and development of wetland nature reserve. This paper selects three aspects of ecological tourism demand potential, ecological tourism supply potential, ecological tourism security potential, which influence and restrict the ecological tourism potential of nature reserve to construct evaluation index system of the potential for wetland eco tourism development, and uses the set pair analysis method to carry out a comparative evaluation between the Yellow River Delta and the Nansi Lake Wetland Nature Reserve. Studies shows that there are some differences in ecological tourism demand potential, ecological tourism supply potential and ecological tourism security potential.
Research on Moderating Effects of Job Satisfaction in Employee Turnover Intention of Insurance Enterprise
Authors: Chen Wei Ke , Guo Ming Yu
Published: September 2014

With the development of insurance enterprises, the frequent employee turnover increases the human cost in insurance enterprise. It also reduces profit of insurance enterprise. This study conducts hierarchical regression analysis based on the sample of insurance enterprise employees. It will research the regulation of job satisfaction for turnover intention in insurance enterprises. This study will help the human resource management in insurance enterprise.
Study on the Influence of Key Factors in Sichuan Province Energy Conservation that Based on the Fixed Effect Model
Authors: Chen Ce , He Xing Qi
Published: September 2014

According to Sichuan Province 2006~2012 21 local power and energy consumption panel data, on the basis of the analysis of the electric consumption and energy consumption, the relationship between economic growth, unit GDP energy consumption and unit GDP electricity consumption, the relationship between the electricity consumption and energy consumption in the industry and the region, established analysis model of measurement of time individual fixed effects model. Have quantitative evaluation for the electricity consumption, the level of economic development, and the industrial structure to assess effects of saving energy and reducing consumption, and put forward the corresponding proposal.
Research on the Development of Wisdom Logistics of Regional Economical Integration of Beijing, Tianjin and Hebei Base on Low Carbon Economy
Authors: Liu Wen Feng , Gong Hu Jiang , Jie Sun
Published: September 2014

Low-carbon economy is the driving force for sustainable regional economic development. The logistics industry is the fastest growing industry in recent years. In this paper, for example Beijing, Tianjin and Hebei, analyzes the development of the metropolitan area's logistics industry. In the context of low-carbon economy, the use of wisdom logistics to build a new logistics industry, the integration of resources, to reduce waste, improve efficiency, and protect the environment.
The Analysis of Constructing Sports Brand in the Vision of Building Powerful Sports Nation
Authors: Cao Xi Dong
Published: September 2014

With the fast economic development of our country, sports cause is facing new challenge and opportunity in the process of development. Through the logical analysis of the meaning and significance of powerful sports nation and sports brand, it shows that sports brand is a very important symbol for a powerful sports nation. According to the fact, the article comes up with the methodology and ways of establishing sports brand in the vision of building a powerful sports nation, which is embodied in the following aspects: establishing sports event brand and holding famous international sports event, constructing sports economy brand, reinforcing development efforts of sports agency industry, building urban sports brand to expand the influence of the city, establishing the sports goods brand to promote the development of the industry of sports goods, building professional sports club brand to increase competitiveness among sports clubs and creating sports star brand to forge international sports stars.
Research on Relevance between Minority College Students’ Satisfaction of Outdoor Sports and their Sports Performance Based on the SEM Mathematical Model
Authors: Li Shan Shan
Published: September 2014

Based on the survey data, carry out scale factor analysis, establish the SEM model, and discuss the interrelation between the minority college students’ satisfaction in outdoor exercise and their inputs and achievement in outdoor exercise based on this model.
Analysis of the Tourism Image Orientation about the Interaction between the Release of Tourism Destination Information and Tourists Perception
Authors: Ye Xiao Qing
Published: September 2014

Based on the interaction between the release of the tourism destination information and the perception of tourists, it will analyze the tourism image positioning of Zhejiang Lishui and give advices.
Multiple Levels Analysis of Group EI Infecting Employee EI and Performance
Authors: Mei Zhan Jun , Ma Qing Hai , Shen Xin Xin
Published: September 2014

On the one hand, as the basic work forms, team is paid more and more attention. Team is a important view of research. At same time, studies find that emotional intelligence is not only a tool in management, but also is antecedent variables. But, on the other hand, according to the previous study, the researches on relation between emotional intelligence and performances are limited in individual level, and don’t make a deep study to the mechanism between them. Based on the two points, this paper chooses team members as object of study, and researches the mechanism from individual level and team level. These results open the black box that emotion intelligence effects performance. At same time, these results provide a good research perspective and bases for follow-up research and in human resource management practices.
Evaluation Model of College English Teaching Based on the Theory of Cloud Gravity Center
Authors: Yang Liu Qun , He Lei , Li Gang
Published: September 2014

College English teaching evaluation is an important step to improve the quality of teaching and to promote students' development and assessment of teachers' performance, which is characterized by many factors and multidimensional structure. The current college English teaching evaluation method faces such problems: fuzzy evaluation criteria, subjective judgment and the difficulty to quantify evaluation results. Based on cloud theory, this article will explore college English teaching evaluation, and establish a comprehensive evaluation model based on cloud gravity center by using weight deviation to measure the quality of teaching. This article will also build an inter-relationship mapping between qualitative and quantitative evaluation, which supports the whole process of comprehensive evaluation with the combination of qualitative and quantitative indexes. Finally this article gives an example of specific application of this method.
Optimization Design of Excavator Working Device
Authors: Guo Yin Sai , Zhang Yi , Cheng Ming Ke
Published: September 2014

It has heavy workload, imprecision, not intuition, and other shortcomings by utilizing the traditional methods to optimize excavator working device (bucket). Structural optimization of main working parts excavator (bucket) is performed by finite element analysis technology. Defect of bucket is found out on the basis of static analysis results. Optimization scheme is put forward to meet the job requirements.
Discussion on the Construction of the Network Teaching Platform
Authors: Huang Le Hui , Gui Bin
Published: September 2014

Network teaching based on web is lashing the traditional teaching model, and will become the mainstream in the new century. The paper discusses the necessity, strategy of function building, and safeguard of the organization and implementation of network teaching platform.
The Research of City Safety Evaluation Method
Authors: Wang Yan
Published: September 2014

On the basis of the major hazards of fire and explosion accident model, through the investigation and analysis of several chemical accident, based on existing models of Domino effect, advances in a wide variety of new model of transfer factor synthesis influence level after the accident, on the basis of the fault tree are used to determine the initial event, with software by probability combination method to calculate the impact of the secondary accidents in the area of the largest combination probability of storage tank, and, in turn, calculated based on the combination of the tank farm Domino effect probability. By various initial tank area after the accident the Domino effect probability calculation is not only beneficial to the reasonable layout of the storage tank can also be used for accident emergency decision-making and accident rescue aspects to provide data support [1].
The Application of Information Technology in Modern English
Authors: Xu Dao Ping , Li Ying , Zhao Wei Hong , Cui Gui Ying
Published: September 2014

According to the English teachers' professional development and evaluation system research, it is known that English teaching mode has been changed in advanced methods because of the development of information technology application. The information technology and English teaching can be effective integration with the college English teachers’ professional development, thereby creating a new teaching model which can strive for the best education effect and provide rich and colorful education environment and powerful learning tools for students' learning and development.
Optimization Decision Promotion Model of Supply Chain Networks with Logistics Speed
Authors: Liao Lang , Huang Yong Hong , Zhao Chang Jiang
Published: September 2014

Commercial logistics speed has the dynamic characteristics of the impact on supply chain. In order to establish the relationship between logistics speed and supply chain network decision model, accurately grasp the logistics effect on supply chain decision, an optimization decision model of supply chain networks with logistics layer weighting was proposed. The whole complex network model of hierarchical supply chain was established. The product pricing and logistics strategies and optimization decision were proposed for realizing the maximum total profit. The simulation results show that the optimal decision model is shown in small world property, and it can reflect the product consumption demand reality effectively, the total profit of the whole supply chain is significantly increased compared with the traditional method, and the network system is adaptive and robust.
Design of the Experimental System of Electromechanical Control Based on Soft PLC
Authors: Niu Hai Long , Gao Qin He , Liu Xin Jiang
Published: September 2014

Aimed at the disadvantage of the experiment of electromechanical control, such as the high cost of the hardware and the unchangeable experiment, an experimental system based on soft PLC was designed which consists of a personal computer with a CP5611 communication card, CPX terminal, FESTO hydraulic platform and software of soft PLC; it also had human-computer interface programmed by LabVIEW to monitor the system and implement control. This system has advantages of strong universality, good flexibility, low cost and simple development process.
The Application of CALL Mode Based on Information Technology
Authors: Liu Hua
Published: September 2014

With the rapid development of computer technology and network, computer, as an assistant means of teaching, finds a broad use of foreign language instruction. In particular, it is worth mentioning that computer assisted language learning (CALL), as a newly booming science, plays an increasingly important role in language teaching and learning and has become an important solution to the current education problems encountered in the process. However, CALL can only play a supporting role in foreign language teaching. In the foreign language teaching with CALL,it is proper to develop the advantages of advanced technology,and meanwhile to deny the traditional teaching mode and inappropriate teaching methods. Therefore, combined with the reality, this paper makes an argument that in the process of teaching, we must keep in the reasonable application of CALL to avoid the negative effects of abusing it while actively and prudently promote the reform of college English to cultivate interdisciplinary talents in the new century.
Pharmaceutical Supply Chain Management Research Based on RFID
Authors: Jiang Ying
Published: September 2014

In order to improve the efficiency of the pharmaceutical supply chain management and strengthen the supervision of medicines distribution, it is proposed that RFID technology is applied to the pharmaceutical supply chain management. The article puts forward the solution to pharmaceutical supply chain management system based on RFID technology and conducts in-depth study on its corresponding processes.
Research on the Application and Improvement of Supply Chain Network Model in the Automobile Industry
Authors: Deng Ya Qing , Liu Jian Qing , Jia Wen Jing
Published: September 2014

After the analysis of the principles of the Supply Chain Network Model (SCNM), this paper attempts to apply the model to the automobile industry and then analyze the character of SCNM of the automobile industry considering flows of material, service, information and capital. Consequently, the improved SCNM with detailed directions of those flows are put forward. The improvement is meaningful and will be beneficial to enhancing the efficiency of supply chain management in the automobile industry.
Development and Application of Economic Management Information System of Enterprises Based on VC++ Technology
Authors: Yang Xing
Published: September 2014

With the constant expansion of Chinese enterprises, the enterprise’s personnel system becomes increasingly large, increasingly difficult to manage, for the information management has become increasingly important. Personnel information management is an important and delicate and complex, so to establish utility personnel information management system in order to maintain a stable business operation, reduce management investment, improve productivity, enhance IT management tools to improve the unit earnings. Further information management system applications conform to the current trend of the information society and shorten the cycle of social production. The personnel information management system is the use of C++ language as the development language, My SQL database as a backend database.
A Study on the Effects of Regulatory Fit and Framing
Authors: Chen Li
Published: September 2014

Regulatory fit theory is based on regulatory focus theory which was from hedonism and decision-making motives, explaining individual consumer’s decisions making processes from both psychological and mental point of views. Regulatory fit theory proposed consumers in the face of different forms of information representation will lead to match or mismatch of consumer wants. And the effect of adjusting the matching value will affect the perception of the product or service, thereby affecting the consumer’s buying wish.Framing effect is originated from prospect theory indicate that people will make different choices when they face the same, but different forms of expression scheme. This article tries to explore the inherent nature of impulsive buying behavior mechanisms, drawing on regulatory fit theory and framing effect theory.
Setting Conditions of Long and Short Routing Mode of Rail Transit
Authors: Yue Chen
Published: September 2014

This paper analyzes the setting conditions on long and short routing mode of urban rail transit both qualitatively and quantitatively. The extended routing and the nested routing are selected to establish the evaluation system of train routing operation effect. Based on the sensitivity analysis of passenger flow and comparison of the operation effects of the train routing above, a conclusion when it is necessary to set long and short routing mode is drew. The instance of Metro Line 3 of City B verificates the method above and it is found the advantage of setting long and short routing mode is smaller as the passenger flow becomes balanced.
Discussing the Characteristics of MOOCs
Authors: Li Xin Fang , Li Jing , Qiu Jing Ling , Sun Shu Wen
Published: September 2014

Recently, Massive Open Online Courses (MOOCs) attracted scholars and experts in education, IT industry, and business. Such as Coursera and Edx, they have more influential in MOOCs. And the enrollment of them is more than million. Why MOOCs will receive such attention? The main reason is that MOOCs has the advantages of network course which others not comparable to. MOOCs meets the learners' self-independent, fragmented, personalized learning paradigm. Learners have a preference for MOOCs. In order to further explore the potential of MOOCs, the study discusses from two aspects: the research background, the characteristics of MOOCs.
Study on Intelligent Maintenance Service Mechanism and Realization
Authors: Yu Shi Dong , Wu Peng , Ding Yuan , Gao Feng
Published: September 2014

Taking on the features of agility, intelligence, Internet and socialization in the wake of rapid expansion of global manufacture and cutthroat competition, to establish an e-intelligence maintenance system is crucial for manufacturing enterprise to reduce costs and increase profits in the global market. Based on the analysis of requirement for e-intelligence maintenance in manufacturing industry of our country, this paper puts forward the remote coordination mechanism, the risk control mechanism and the security mechanism. Then explores the eMS strategy formation and optimization which based on Case-based reasoning, intelligent evaluation model of eMS and an effective integration schemes of realizing an enterprise web e-manufacturing and an e-business tool.
The Laser Focus Position Control System Based on Motion Controller
Authors: Zhang Yun Li
Published: September 2014

Laser cutting focus position automatic tracking system of control precision directly affects the quality of laser cutting processing. There is a low anti-jamming capability, poor quality,poorer openness and poorer dynamic response short comings in the inductive sensor or the capacitive sensor and constitute of the single chip microcomputer control system. This paper introduces a laser focus automatic tracking system based on motion controller, using optical encoder as displacement sensor, use the motion controller of master-slave tracking (electronic gear) function implementation focus position error compensation quickly. Improve the quality of system control, openness, the stability and reliability.
Design of Sewage Treatment Automated Control System
Authors: Hong Yun
Published: September 2014

Advanced fieldbus technology has solved the DCS system of communication caused by special network of the closed system defects, the closed, proprietary solutions into the open, standardized solution.Therefore, in this paper, according to the technological process in sewage treatment plant, combining with the distribution and characteristics of process equipment, the overall structure of the design of the sewage treatment plant automation system, and the overall structure of each component has carried on the detailed analysis and research.
Nonlinear Force Distribution for Multi-Finger Robot Hand Using Impedance Control Based on EtherCAT
Authors: Hou Ming Xin , Jiang Li , Chen Zhao Peng
Published: September 2014

A novel strategy of online force distribution for multi-finger robot hand is developed based on impedance control. The real-time controller system including the finger dynamics and multi-fingers constraints is considered as a nonlinear system. Because when the robot hand grasps the object, the fingertip force is usually changed which could cause the grasp unstable. Our method gains the ability to deal with online grasping force distribution and can satisfy the real-time requirements at the same time. Experiment shows that our method provides the most feasible grasp configurations in real-time performance.
Analysis on Oil Extraction Progressing Cavity Pump Three-Dimensional Finite Element Model
Authors: Han Guo You , Wang Ming Qi , Hou Yu , Li Qiang
Published: September 2014

The finite element analysis of PCP involves three nonlinear of geometry, material and contact, and the load of PCP is diversity, leading to it difficult to establish the finite element model and calculate by finite method. This article takes GLB120-27 as an example, to establish 3D solid model of PCP by using SolidWorks; to determine M-R model constant of stator rubber by using the data of uniaxial tensile test: to separate the seal band from the stator chamber by using Boolean operation and set up contact pairs, to achieve the correct simulation of stator chamber fluid pressure; to correctly simulate the interference fit between stator and rotor through setting correlation parameters; to establish 3D finite element analysis model and verify the correctness by using the experiment data of hydraulic characteristics of PCP.
A Novel Direct Torque Control of Fault Tolerant Three-Phase Four-Switch Inverter Brushless DC Motor
Authors: Wang Song Lin , Xie Shun Yi
Published: September 2014

Because of the reliability requirement for the motor driving system in practical application, and based on analysis of the working principle of a fault-tolerant inverter, the direct torque control (DTC) for brushless direct current motor (BLDCM) fed by four-switch three-phases inverter (FSTPI) when the inverter faults is widely studied. According to the characteristics of (BLDCM), the voltage space vector for BLDCM-DTC fed by FSTPI is redefined due to the dissymmetric voltage space vector of TPFSI. To reduce the number of power device switching, the implementation method of four-switch SVPWM with seven-segment scheme was presented. Therefore, the system model is established as a result of the detailed analysis of voltage space vector and the control principle of the BLDCM-DTC without flux linkage observation fed by FSTPI. The validity and effectiveness of the proposed scheme have been verified through the simulation and experimental results.
Research on Finite Element Model of Wheel-Rail Contact
Authors: Zhang Hai , Hu Xiao Yi , Lin Feng Tao , Zhou Xin Jian
Published: September 2014

Many researchers applied creepage to calculating creep force, but relation between creepage and creep force are very complex and it has been a major problem for solving rolling contact theory. The paper uses the finite element method for studying directly creep forces and apply it to the studies of wheel-rail rolling contact. Paper establishes the finite element model of wheel-rail rolling contact based on ALE method in ABAQUS, and simulated unsteady state of wheel-rail rolling contact and research normal force of wheel-rail contact pitch. Results show that the normal maximum pressure in left wheel have a trend toward the center of contact pitch and the normal maximum pressure in right wheel have a trend toward the other center of contact pitch with increasement of displacement
Research on Stator Flux and Rotor Speed Estimation for Induction Motor Based on Extended Complex Kalman Filter
Authors: Pan Yue Dou , Guo Ying Wei , Li Hua De
Published: September 2014

This paper proposes a stator flux and rotor speed estimation method for induction motor (IM) based on extended complex Kalman filter (ECKF). A complex-valued model is adopted that allows a simpler and more effective state estimation of IM. And a third order ECKF has been designed for IM model by neglecting the mechanical equation, which is a valid hypothesis when the motor is operated at a constant rotor speed. The stator flux and rotor speed estimation obtained from ECKF are applied for direct torque control (DTC) of induction motor. This method for state estimation is more effective and easier than the one performed on the corresponding real-valued model, as it obtains observability conditions directly in terms of stator current and flux complex-valued vectors. The proposed ECKF achieves a good performance in DTC of IM. Simulation experiment results in Matlab/Simulink environment validate the proposed method.
A New Intelligent CNC Compound Machine
Authors: Li Ai Qin , Tang Kun
Published: September 2014

The new intelligent computer number control (CNC) compound machine is introduced.The machining can load and unload automatically by industrial robot,and can synchronously carry on three processes for drilling,chamfering and tapping with high-composite and high-efficiency .Thus this machining can achieve unmanned intelligent operation in production .
Design of Traditional Hydraulic Steering System with Variable Power
Authors: Li Jie , Song Jian Tong , Wang Li Hong , Yao Jv Biao
Published: September 2014

Conventional hydraulic steering system has the problems of "low-speed heavy, high-speed flight" and energy-wasting when steering, the main reason is after the system is designed, the power characteristics are fixed. To solve this problem it is necessary to achieve the power characteristics of changing power steering system according to speed of vehicles, in order to offer the power that matches the speed. Using vehicle speed sensor signal to control pilot solenoid unloading valve to regulate the pressure of hydraulic system, can achieve the regulation of power characteristics, this article is based on such idea to design variable hydraulic power steering system for hydraulic power steering system of light trucks.
Design of Quadrotor Helicopter Based on STM32
Authors: Huang Z.W. , Chen Z. , Bian B.P. , Tang Y.
Published: September 2014

Quadrotor helicopter is light and very agile aerial robots which attracted much attention of scientists. A practical implementation of a quadrotor helicopter based on STM32 is described in this article, applying MPU6050 and other inertial sensors. The hardware structures and software flow chart of flight control are both presented. The discussions with the key problems during the process of implementation are also made.
Design and Development of Economic Type Mechanical Engraving Machine
Authors: Chen Yun Xin
Published: September 2014

This paper discusses and analyzes the development process of economic type mechanical engraving machine, including the system overall layout, structure scheme, the movement mode of numerical control system, mechanical system design process and the design process of the control system and the "mechanical engraving" the choice of interpolation algorithm, analysis and implementation process. Compared to the same function of the CNC engraving machine, has certain advantages in terms of price, to fill the gaps in the domestic and foreign enterprises, to meet the market demand.
The Application of Polling System in Intelligent Transportation System
Authors: Li Chao , Ding Hong Wei , Liu Qian Lin , Lu Xu
Published: September 2014

With the advancement of society, transport plays an increasingly important role in human society, but more and more traffic problems are constantly plagued mankind. Aiming at the problems facing the traffic and improve the traffic situation, the polling system is applied to intelligent traffic control system in this paper. Based on the type of paper feed of the arrival rate theory, the vehicle arrives at different rates, the wait time is different. Arrival rate is high, the longer the waiting time. Then we simulate system and get the simulation results, and compare the theoretical and simulation results. Finally, the theory to practical systems is using in microprocessor hardware simulation, and actual results further validate the correctness. Through the intelligent traffic control system, a good solution to traffic jam phenomenon is got and traffic management plays an important role.
Design of Energy-Saving Control Software Algorithms in Large Industrial Network
Authors: Liu Wen Lai
Published: September 2014

In the operation process of large industrial control network, with conventional fuzzy PID control algorithm for industrial control networks energy-saving control, excessive industrial networks will aggravate machine wear of the single network, thereby reduce the effect of energy-saving for industrial network. This paper presents an approach for industrial network energy-saving control based on non-uniform data production rate. According to the relationship between the network load and loss, the loss model of industrial control network can be established. Adaptive linear genetic method is utilized to control industrial control network energy-saving load, so as to achieve energy-saving control of industrial control network. Experimental results show that the algorithm can effectively improve the energy-saving efficiency of industrial control network, and achieve satisfactory results.
Hydraulic System Reliability Analysis of Slurry Transportation Based on Stochastic Failure Petri Net
Authors: Wang Dong Dong , Liu Lu Xi , Sun Ping
Published: September 2014

As the development of the slurry pipeline transportation system complexity and intelligent,it is more difficult to establish the reliability of the system.This pape take advantage of the descriptions of dynamic systems of stochastic failure petri net,applying in the field of slurry pipeline transport system reliability analysis.At same time,with the combination of Markov theory, it established the model of the hydraulic system reliability analysis.The feasibility and availability of the method is proved through an example of hydraulic system of slurry pipeline transportation.
Strategic Analysis and Experimental Research on Synchronization Control of Dual-Motor in Crane
Authors: Liu Yong Qiu , Liu Xiao Feng , Wang Hai Xia
Published: September 2014

In order to ensure work safety, large cranes generally use two motors together to upgrade the load, so often there is a synchronization error, control accuracy is affected. To address this issue, the paper crane hydraulic lifting system to study proposed control strategy based on fuzzy PID's. The results show that the method used to effectively reduce the synchronization error between the two motors to improve the control precision crane, a certain reference value.
Research on Aero-Engine Lubricating Real-Time Oil Measurement Method
Authors: Shan Bao Feng , Mo Fan Chen , Li Jing Chun , Tian Zhi Ping
Published: September 2014

With the rapid development of aviation technology, the performance of aero-engine continues to increase in China. However, Chinese Aero-engine lubricating oil real-time measurement technology is not mature, active airplane almost have no Aero-engine lubricating oil real-time measurement system, It requires further in-depth study.By research on Aero-engine lubricating oil measurement technology. First, it outlined the method and principles of measurement, and based on UG Open the analysis of Aero-engine lubricating oil system was developed. Through which an analysis of the model of Aero-engine lubricating oil, the spatial databases about sensor depth of immersion oil, aircraft attitude and fuel volume were built.,which can provide the data for the subsequent lubricating real-time oil measuring analysis .
3-D Dynamic Simulation of the High-Speed Measurement Turbine under Cavitation
Authors: Chen Yong , Zhang He , Ma Shao Jie
Published: September 2014

The external turbine can be used on underwater high-speed moving body to measure its own velocity. By establishing the rotating turbine dynamic equations and using UDF programming for secondary development on fluent software, the three-dimensional dynamic simulation of water speed measurement turbine model was achieved. Using this model, under the complex flow environment like cavitation and small attack angle, the dynamics simulation was performed and the results was analyzed to get the turbine movement characteristics. Simulation results show that the simulation model can reflect the variation in characteristics of the turbine caused by the small attack angle at cavitation situation.
Research on Complex System of Prognostics and Health Management
Authors: Li Xiao Ming , Lin Xue Dong , Li De Gang , Feng Zhi Shu , Zhao Peng
Published: September 2014

With the increasingly large and complex systems issues in the aspect of reliability, availability, economy and maintenance, the advantages of condition based maintenance become more and more marked which requires the system itself has the prognostics and health management capabilities. Based on this, the integrated framework and applied technology of prognostics and health management to complex systems are studied, and the advantages of prognostics and health management techniques are summarized.
Contact Stress Analysis of Hard Coating Rolling Bearing
Authors: Guo Yong
Published: September 2014

Take large-scale general finite element software ANSYS as the analysis tool and the cylindrical roller bearing as the research object, we establish the ideal contact numerical model of roller and analyze the Hertz contact stress. That calculation results of the ideal model are correspond to that of the finite element verifies the correctness of the finite element analysis method. In this paper, we establish the model of cylindrical roller bearing with coating, studying the distribution of contact stress in coatings with different thickness and analyzing the effect of coatings.
Research on Acoustic Characteristics Measurement by Using LabVIEW
Authors: Zhang Ben Hua , Sun Shi Ming , Zhang Shuai
Published: September 2014

In this article, a quality testing system was developed based on LabVIEW trail version. A pc-controlled electronic universal testing machine was applied to acquire mechanical characteristics. Through this system, muskmelon interior quality had been tested by using acoustics characteristics. Origin8.1 is used for treatment the signals, including data smoothing, FFT analytical, data fitting, baseline peak value analysis and other methods, then modeling according to these analysis data. The nonlinear regression analysis is available to the characteristics’ establishment for other agricultural products, which can supply theoretical references in order to appraise the quality of fruits and vegetables.
Study on Computer Failure Analysis and its Testing Methods
Authors: Shi Xiao Ling , Shi Xiao Ping , Zhang Zhi Tian
Published: September 2014

In the process of using the computer, there will often be some failures which causes the computer not working properly or even cause data loss. This article analyses and discusses the maintenance method of computer hardware from the perspective of common faults of computers, hoping to help you to find the computer's fault quickly and accurately, effectively trouble shooting.
An Design Method of Underwater Positioning System Based on USBL
Authors: Zhang Ling
Published: September 2014

According to the array size,underwater positioning system can be divided into long baseline array, short baseline array and Ultra-short baseline array (USBL). This paper introduces USBL space positioning principle, describes the essence of direction estimation based on the phase measurement , analyses the factors that affect the positioning error, in view of the phase error, this paper introduces the method of improving positioning accuracy from extension formation.
Research on Fault Diagnosis Technology for Aviation Equipments Based on IETMs
Authors: Jiang Wei Wei , Yin He , Yan Jin , Hou Xue Qiao , Zhang Liang
Published: September 2014

In this paper on the basis of fault diagnosis for aviation equipments, an complex behavior of maintenance, IETMs are studied with respect to fault modules, data description and storage, fusion of fault trees and case-based reasoning, as well as integration with external diagnosis and other expert systems, etc., and solutions for fault diagnosis technology of IETMs are investigated to add new contents for fault diagnosis technology, so that IETMs are capable of providing further fault diagnosis strategies to maintenance personnel based on the traditional IETMs.
A Lane Detection Method Based on Feature Point Segmented Fitting
Authors: Bai Meng , Li Min Hua , Lv Ying Jun
Published: September 2014

To detect lane from structured road, this paper presents a novel lane detection method based on feature point segmented fitting approach. Firstly, feature points are extracted from the edge image, and then segmented fitting approach based on least squares is used to obtain the line equation of feature points, and the lane recognizing criterion for fitted line equation is further proposed to detect lane. Finally, the lane tracking method is proposed to detect lane in video frames. Experimental results demonstrate that the proposed lane detection method can effectively detect lane of structured road.