bluuebunny/crossref_metadata_2025 huggingface dataset:
Simulation Analysis of Meiliao Trench-Buried Inverted Siphon
Authors: Liu Ke Ding
Published: September 2013

This paper adopts universal finite element calculation software to carry out force analysis for Meiliao trench-buried inverted siphon,computer is applied in analysis of trench-buried inverted siphon. Deducing variation law of the inverted siphons stress and displacement in construction process and operational process. The calculation results further shown design schemes rationality and safety. Analysis results show that, force of Meiliao trench-buried inverted siphon structure is explicit, it meets the requirements for design.
Skill Evaluation in Point-to-Point Human-Machine Operation
Authors: Antunes Rui , Coito Fernando V. , Duarte-Ramos Hermínio
Published: September 2013

Point-to-point reaching manual actions are present in numerous human-machine tasks. This is due to the fact that machines are commonly handled by a human operator through simple multiple interfaces. Therefore, task-performance evaluation methods based on extending the Fitts' law can be used as a skill estimator for the resulting human-machine system. This paper proposes a methodology for qualifying operator skill in point-to-point (p-t-p) man-machine operations, based on several task-performance index evaluation criteria. A 2-D real-time setup was built for the execution and evaluation of the p-t-p tracking experiences over a predefined process dynamics, using a pen tablet as the human-machine interface device. The analysis from the collected data reveals a correlation between operator performance and the fitting error to Fitts' law.
Integrate Personal Healthcare Devices into Smart Home with ISO/IEEE 11073 PHD Standard
Authors: Song Jian , Kong Xiang Yong , Wu Hao Chen , Wei Yu
Published: September 2013

The recent ISO/IEEE 11073 PHD standard presented a way to achieve the communication between personal healthcare devices, but it didnt specified how to interact with the other smart homes component. The paper designed an interaction model composed of three kinds of service pack and signal-slot mechanism, the model provided a simple way to identify the device status and manage x73 messages. And it did an experiment about R wave detection to verify the interaction model successfully. The paper promotes the application of x73 standard in the interaction between healthcare devices and the other smart homes component.
Case Study on Employee Competence Regarding Competitiveness and CSR Issues of the Forest Industry Companies
Authors: Fedotova Kristine , Geipele Ineta , Geipele Sanda , Stamure Iveta
Published: September 2013

t would be helpful if the companies operating in the forest industry in Latvia in the management process used advantages of strategic management. To make further progress in competitiveness management, the developed strategy should be effectively managed and the achieved progress - assessed. [8.;13.;14.] The strategy consists of the intended activities and the required improvements. [5.]
The aim of the case study on forest industry employees competitiveness competence is to find out internal problems of the companies operating in the forest industry, as well as to provide recommendations to balance potential changes of the external environment of forest industry. [9.]
If to choose optimal and economically, socially and environmentally balanced way of the development, an appropriate strategy and tactics of competitiveness management, based upon employees competence within the industry competitiveness and CSR should be applied.
Optimization Design Study of Loader Working Mechanism Based on MATLAB Complex Method
Authors: Yang Hua Lin , Zhang Tong Qiang , Gao Gong Ru
Published: September 2013

The paper makes an analysis on the working device of loader, which plays an important role in the performance and economic benefit of the overall unit. The paper tries to develop the mathematical model of a loader working device, apply complex method taking the maximum breakout force of cylinder of rotating bucket as well as maximum lifting force of boom cylinder as the objective function and finally realize the optimization design of its design based on MATLAB software, probing into finding a efficient solution for the technical problems existing in the working device design and manufacturing.
Research on Re-Use Reverse Logistics Network of Disused Electric Appliances Based on Election Campaign Algorithm
Authors: Xie Qing Hua , Zhang Xiang Wei , Lv Wen Ge , Cheng Si Yuan , Huang Hao Xiang , Cai Si Da
Published: September 2013

Disused electric appliances have become new urban polluter because of the replacing of appliances households and corporates throw away. Recycling systems of disused electric appliances in a few Chinese cities have been put on the agenda. On the basis of summarizing domestic and overseas research about reverse logistics management, this paper proposes re-use reverse logistics system model of disused electric appliances and use election campaign algorithm to solve the problem. Finally, the paper provides an optimization method of reverse logistics network for electric appliances recycling system.
A Nearly Optimal Peak Reduction Tone Set Selection Algorithm
Authors: Zheng Jin Quan , Wang Ya Jun
Published: September 2013

In tone reservation-based OFDM systems, the peak to average power ratio (PAPR) reduction performance mainly depends on the selection of peak reduction tone (PRT) set. it is known that finding the optimal PRT set requires an exhaustive search of all combination of possible PRT sets, and this search is infeasible for the number of tones used in practical systems. The existing selection methods perform poorly or incur high computational complexity. In this paper, an efficient scheme based on particle swarm optimization algorithm (PSO) is proposed to search the nearly optimal PRT set.Simulation results show that our proposed algorithm can obtain a nearly optimal PRT set and good PAPR reductions.
Rapid Prototyping Design for In-Wheel Motor Controller
Authors: Song Chuan Xue , Peng Si Lun , Jin Li Qiang , Li Jian Hua , Song Shi Xin , Zheng Zhu'an
Published: September 2013

Based on the study of the Matlab rapid prototyping technology, the rapid prototyping design approach is presented, which is widely applicable to all kinds of microcontroller. Through the modification of the system target file, the automatic code generation function of the Matlab could support more microcontrollers. The rapid prototyping of in-wheel motor controller is designed through this approach. Then the embedded C codes are generated according to the vector control algorithm model which is validated by simulation, and the rapid prototyping of in-wheel motor controller is achieved. The proposed approach is validated through the comparison to hand-written code.
The Optimization of the PID Controller Using the Least Squares Method and the Improved Lbest PSO Algorithm
Authors: Yang Chuan Gui , Yang Zhao Jun , Chen Fei , Zhu Yan , Kan Ying Nan , Zheng Zhi Tong
Published: September 2013

A self-adaptive PID tuning scheme is presented for the electro-hydraulic servo loading system. It requires the least squares method to identify the parameters of the transfer function of the electro-hydraulic servo loading system and utilizes the improved lbest PSO algorithm to optimize the PID controller. The scheme can provide the optimal PID parameters so that the dynamic performance and stability of the electro-hydraulic servo loading system are improved. Results show the fact that the dynamic performance and stability of the system are improved by the scheme. And in terms of optimization of PID controller, the improved lbest PSO algorithm is better than the lbest PSO algorithm and Ziegler-Nichols method.
A Study of High-Speed Angular Contact Ball Bearing Thermo-Mechanical Coupling Characteristics
Authors: Lei Chun Li , Rui Zhi Yuan , Zhou Bao Cheng , Fang Jing Fang
Published: September 2013

Heat generation and deformation of bearing are key factors that influence the rigidity and machining accuracy of the high-speed precision spindle system. Based on heat transfer and thermodynamics, the finite element model of angular contact ball bearing is established for thermal deformation. The contact stress and thermal deformation are analyzed and obtained at a speed of . The results show that the maximum contact stress and thermal deflection appeared at contact region, which is in accordance with actual status. The results provide the reference and the theory basis for research into thermal deformation of bearing.
The Study of Detection System of Two-Wire Flowmeter Based on Virtual Instrument Technology
Authors: Liu Fu Xiang , Wang Liu Min , Deng Li Xin
Published: September 2013

In order to test the performance of the two-wire flowmeter, the detection system based on virtual instrument technology is designed in this paper. This system mainly consists of four parts: master control unit, flow rate signal measurement unite, standard instrument and Measured instrument.The master control unit of the detection system is PC. With the communication protocol of MODBUS, PC control the detection device to synchronous sample the standard flow meter and the measured flow meter, and output 4 ~ 20mA current signal. The test analysis software is developed in LabWindows/CVI programming environment to achieve the test data automatically generated. Practice has proved that the system operation is simple, fast, and efficiency.
Real-Time Auto-Light System for High-Speed Camera
Authors: Yang Hua , Liang Min Hua
Published: September 2013

In order to obtain stable and high quality image from high-speed camera in real time under different environment, the system hardware based on TMS320DM642 is designed and a complex control method is proposed to realize auto-light control rapidly by harmonizing alterable diaphragm and camera exposure time. The algorithm of the auto-light system mainly consists of two parts: the analysis of brightness information based on Variance weighted information entropy, camera exposure time control and alterable diaphragm control based on data analysis. The project results show that the algorithm has rapid convergence and strong adaptability, and the system can realize large-scale and real-time auto-light at different conditions.
A Novel Texture Spectrum Descriptor
Authors: Yan Shen Hai , Huang Xian Tong , Liu Yang
Published: September 2013

A concept of equivalence classes of texture pattern is put forward according to the visual consistency between the rotation texture and the flip texture. An improved texture spectrum descriptor (iTS) is proposed based on the equivalence classes. The iTS depicts the grayscale variation pattern of the pixels in the image neighbour domain and denotes the texture content of an image with a histogram of texture spectrum. Compared with the basic texture spectrum descriptor (TS), local binary pattern (LBP) and Shis local binary pattern (sLBP), iTS has best precision in the image retrieval experiments. The iTS has stronger ability to describle the texture and more adapt to the image rotation transformation.
Design and Analysis of a Micro-Motion Platform Based on Flexible Mechanism
Authors: Yu Yue Min
Published: September 2013

Piezoelectric materials is a kind of the most common smart materials whose geometric shape can be related to an energy input in the form of electric field. In the application of active materials to electromechanical energy conversion, electrical energy may be input to the material and the resulting deformation of the material can be used to move a load. In this paper, a micro-motion platform is designed based straight circular flexure hinge and driven through piezoelectric ceramic stack. The calculation formula of the natural frequency of the new micro-motion platform structure is derived. From the analysis, the deformation and stress of it are all under allowed value of 65Mn. The results indicate that, the micro-motion platform all are satisfy the need of design.
Binocular Stereo Vision Calibration System Implementation of Grid Strain Measurement in Sheet Forming
Authors: Xiang Hui Yu , Han Bao An , Li Zhe , Huang Jia Jun
Published: September 2013

For the research of camera calibration in the system of grid strain measurement in sheet forming, the pinhole camera model, the nonlinear model of the camera and the binocular stereo model are analyzed, drawing a binocular stereo calibration method based on HALCON, which detailedly describes the calibration principle and specific calibration process. A binocular stereo vision calibration system based on VC6.0 is established, by which the influence on camera focus, distortion factor and principle points from the number of calibration images is verified by experiments.
Study on Dynamic Characteristics of Parallel Robot with 2-DOF
Authors: Chen Mei Yu , Xin Hong Bing , Li Quan Lai , Xin Yue Fei , Cui Deng Qi , Liu Long , Wang Tan
Published: September 2013

The experimental system of dynamic characteristics is set up to improve the dynamics performance and motion control quality of 2-DOF robot. The vibration acceleration response of the end actuator is measured at different speeds in two directions vertical and parallel to the workbench plane. The frequency spectrum is obtained through frequency analysis to provide a basis to improve the performance of robot.
Design and Manufacturing of Cylinder-Beam Integrated Hydraulic Press
Authors: Zhang Wei Wei , Wang Xiao Song , Yuan Shi Jian , Wang Zhong Ren
Published: September 2013

For a cylinder-beam integrated hydraulic press (CBIHP), the hydraulic cylinder is also functioned as an upper beam. It is the key structural component that outputs the driving force to forge parts. Compared with the traditional three-beam and four-column hydraulic press which has a cylindrical hydraulic cylinder, the structure and force distribution are significantly different for CBIHP. It is able to have higher nominal force and larger section of plunger which the pressure is applied on when the contour geometric dimension is the same. Also, CBIHP has lighter weight and larger section modulus when the nominal force is the same than the traditional hydraulic press. Finally, a 6300KN cylinder-beam integrated hydraulic press, which is the first CBIHP in the world and designed by Harbin Institute of Technology (HIT) in 2012, is also introduced in this paper. It can be seen from the results of numerical simulation for the CBIHP that both of the stresses and displacements on the press in the loading process are allowable.
The Control of Fuel System for Combustion Piston Type Hopping Robot
Authors: Samo Saifullah , Yuan Ma Shu , Sameh Bdran
Published: September 2013

Various hopping robots use the different methods to release energy for hop. The use of fuel with oxidant can provide enough potential energy for hopping by combustion. The fuel control system for combustion type hopping robot is presented. Maximum power of explosion can be obtained for high hop by mixing, fuel & oxidant in correct amount of ratio. The feedback fuel control system is presented which adjusts the ratio of fuel and oxidant to generate the desired pressure inside cylinder by controlling the fuel & oxidant pressures individually. The mixing process of fuel and oxidant takes place inside the cylinder. A simulation model of system in SIMULINK is established by using MATLAB software.
Design and Implementation of Gas Detector Position Computer System Based on ARM
Authors: Shi Liang , Zhao Heng , Cai Hao
Published: September 2013

Relying on the author-designed new gas detector the system completes the ARM - based processor hardware platform software design, the using of smart home products design concept and the Internet of Things technology. The system had unattended receiving data, network remote query, data warning functions and with good prospects.
Research of Bearing Raceway Ultra-Lapping Unmanned Manufacturing System Based on Embedded Technology
Authors: Huang Zong Xiang , Li Chun Guang , Li Bin , Luo Hao
Published: September 2013

By analyzing the bearing raceway ultra-lapping process and equipment, we can set up an automatic device replacing oilstone and automatic detection mechanism of machining precision. By adapting the modular method to define respectively various functions of the automatic cycle processing module, automatic device replacing oilstone module, detection module, machining precision of automatic machine automatic feeding module, machine automatic feeding module, network monitoring module, and analyzing those functions to find logical relationship between the modules, we aim at establishing communication between these modules. Through the use of embedded microprocessor and its application software, connected by the CNC system and the external host computer network, we can realize long-distance control and unmanned operation, long-distance processing program transmission, long-distance diagnosis and repair services, technical services, and coordinating and efficient operation of each functional module of ultra-lapping process, eventually establishing the bearing raceway lapping unmanned manufacturing system, improving the efficiency and stability of the equipment, saving human resources, creating conditions for constructing unmanned automatic production system for bearing.
Study on AES and its Efficient Implementation on STM32F103 Processor
Authors: Zhang Xin He , Liu Guan Nan
Published: September 2013

A optimized Rijndael algorithm which can execute effectively on STM32F103 processor is presented. Firstly, a theoretical analysis of the Rijndael algorithm and code optimization are carried out, and then simulation results of the optimized algorithm on stm32f103 processor are given. Subsequently, the conclusions as follow can be drawn. The cycles of key schedule for decryption are more than those for encryption. Key schedule for decryption demands larger memory than that for encryption. Decryption is slower than encryption. At last, the experiment shows that the algorithm can be executed on STM32F103 processor efficiently.
Compact DC-DC Power Design in Half-Bridge IGBT Driver
Authors: Wang Qiu Yan , Liu Yan , Xu Ping , Luo Da Cheng
Published: September 2013

The integrated half-bridge IGBT driver need compact, high efficiency and high power density isolated DC-DC power supply, a set of two magnetic cores share a high-frequency full-bridge switches are designed. A simple circuit generates four channel drive signals, without isolation, to achieve compact on-board power supply and the best combination with the integrated half-bridge IGBT driver. The key signals are simulated, and experimental results show that the power supply is simple, reliable.
The Research and Application of Reactive Compensation Technology for Oilfield 10kV Lines
Authors: Wu Xiao Meng , Feng Yuan , Xiang Xiao Mei
Published: September 2013

There are three modes of reactive compensation. Analysis on the present situation of oilfield distribution, the on-spot mode is adopted in this paper. An approach for 10kV lines reactive power compensators of oil field distribution networks is put forward. At the same time, combined with the concentrated compensation and grouping compensation, the total number of capacitors and the investment are calculated. The feasibility of the proposed method is showed by the results of an example. the power factor is improved, the quality and reliability are also mended.
Application of Wireless Communication in Multi-Channel Temperature Control System
Authors: Wen Li Mei
Published: September 2013

In the technology of temperature measurement, the sensor is an important part of system. But with the increase of the number of sensors, it will undoubtedly bring with a lot of data cable. Compared with wired communication technology, wireless communications technology has the advantages of low cost, simple structures, low impact of environment. So the wireless communication technology meeting with the requirements of data communications has become a more practical, fast and efficient way. This paper describes a multi-channel temperature monitoring system using nRF905 wireless transmission module, STC89C52RC MCU and DS18B20 temperature sensor as core. Functions such as sampling, analysis, display, alarm and others can be done automatically by the system, dates transmitted by wireless module, and the system can realize the function of real-time monitoring of temperature.
Investigating the Impact of Hybrid Energy Storage System on Isolated Power System
Authors: Wang Xin Zhi , Xia Li , Zhang Chao
Published: September 2013

Based on new ship isolated power system, the models of power station, loads and hybrid energy storage system (HESS) are built. Fuzzy control theory is adopted to control different energy storage modules (ESM) coordinately, effectively level the fluctuation of loads and improve system stability. Simulations in Matlab/Simulink investigate the impact of different control filter parameters on compensation effect of HESS, and the impact of ESMs performance on HESS compensation.
Low-Rate Application-Layer DDoS Attacks Detection by Principal Component Analysis (PCA) through User Browsing Behavior
Authors: Di Xiao Qiang , Yang Hua Min , Qi Hui
Published: September 2013

Application-layer distributed denials of service (DDoS) attacks are becoming ever more challenging to internet service security, since firewall and intrusion detection system work on network layer while these attacks are launched on application layer. In contrast to prior work focusing on detection of high-rate DDoS attacks at static web sites, we propose a novel approach to detect low-rate application-layer DDoS attacks at dynamic web sites. A feature matrix is introduced to characterize user browsing behavior. Principal component analysis (PCA) is applied to profile the user browsing behavior pattern. Outliers from this pattern are used to identify anomaly users. Experiments are conducted to validate our approach. Experimental results show that our approach is accurate to detect low-rate application-layer DDoS attacks.
A Polling Control Protocol with Energy-Saving for Wireless Sensor Network
Authors: He Min , Bao Li Yong , Deng Lei
Published: September 2013

A polling control protocol for wireless sensor network (WSN), namely Sleeping controlled Point Coordination Function (S-PCF) was proposed based on IEEE 802.11 PCF and then the access control method of S-PCF was analyzed. In S-PCF, the center AP decides the sleeping time for every node so that it can synchronize the service with the nodes and maximize the sleeping time of each node to reduce the energy consumption coming from center APs empty polling and the idle listening of the active nodes in PCF. The single direction transfer mode was introduced to simplify the data transmission for the data acquisition environment and the number of the data frames subkinds was cut down so that the control can be lighten. Moreover, the transmission of the polling frame and data frame were also described in detail. Finally, the experimental results indicate that S-PCF can greatly save energy of idle nodes and extent the lifetime of wireless sensor nodes and the simulations also show that S-PCF can satisfy the system performance.
An Application of the Frequency-Domain Experience Mode Decomposition to Enhance Deconvolution Results
Authors: Zhang Ya Nan , Dai Yong Shou , Ding Jin Jie , Zhang Man Man , Wang Rong Rong
Published: September 2013

To improve the resolution of the seismic section after deconvolution, a method based on frequency-domain experience mode decomposition was proposed. Empirical mode decomposition (EMD) method is usually used to analyze the time domain non-stationary signal, in order to better recover original reflection coefficient sequence, empirical mode decomposition was implemented for frequency-domain amplitude spectrum. Through the different characteristics between the equivalent filter amplitude after deconvolution and reflection coefficient sequence amplitude in frequency-domain, the real reflection coefficient sequence was recovered. Simulation results indicate that the method is effective and feasible.
Improved Elastic Model Matching Algorithm for Facial Expression Recognition
Authors: Zhao Wen Dong , Zhang Jie , Zhang You Dong
Published: September 2013

Key frames detected in Video stream contain sufficient expression information. In order to classify and recognize these expression information, a new elastic model matching algorithm is proposed in this paper. Firstly, expression template is transformed by Gabor wavelet , and the detection algorithm of the key expression in the template image is used. According to the feature information of the key expression, structure expression elastic graph, then by changing the key location in the expression template graph and doing non-rigid match of the expression template and expression elastic graph which is measured, so that similar degree between them is got. Finally, by improving the K-nearest neighbor classification strategy, the effective classification and recognition of measured image expression is achieved.
Compressed Sensing with Generalized Hebbian Algorithm in Video Frame Prediction
Authors: Gu Ming Ming , Jing Qi
Published: September 2013

Compressed Sensing with Generalized Hebbian Algorithm (GHA) in Video Frame Prediction is proposed in the paper. After analyzing the inter-frame correlation among the images of video sequences, GHA, as neural network algorithm of PCA, is adopted to remove the transform coefficients with lower value according in order to implement video compressed sensing. Furthermore, for statistics of the adjacent frames are similar enough, the algorithm processes superiority in video frame prediction. Simulation results show that, the proposed algorithm can not only improve the reconstructed quality and the visual effects of the video sequence, but also save the sampling resources. Moreover, video frames can be predicted capitally through the application of the algorithm.
Improvement Hardware Design of High Power and Ultra-Low Frequency Signal Source in Cased Hole Resitivity Logging
Authors: Gao Cheng Fang , Wu Xiao Meng , Zhang Jia Tian
Published: September 2013

The cased hole resistivity logging technology is one of high-tech logging technologies being studied in China. The signal source requires high voltage, high current, ultra-low frequency, high stability, high resolution, etc. Based on the characteristics, proposed were the ideas that the direct digital synthesis technique should be applied to produce the required sine logging exciting signals, and high-power FET were used to produce the signals with high power and high voltage. The results show that the output frequency of signal source is 0~ 10 Hz, frequency resolution 0. 002 Hz, output voltage range -300 V~+300V, output current less than 6 A. The design has been successfully applied in the research project of extremely weak nV-level electric signal acquisition theory and experimental study on formation resistivity measurement through metal casing.
The Analysis and Data Mining of Students’ Online Data Based on Digital Campus
Authors: Shi Quan , Qian Yuan , Gong Yan , Zhu Xiao Min , Yan Jun Qiang
Published: September 2013

The research takes the campus network users logging on the Internet as the analysis object, using the data preprocessing technology to clean up the original data, combined with statistical analysis and data mining technology to analyze the users access log records, which will result in the form of dynamic charts for Web display, by using Microsoft SQL Server 2008 and Microsoft Visual Studio 2010. Take use of intelligent .NET platform, combined with K-means algorithm to cluster the students information. DMX (Data Mining Extensions) will be used to show the mining results on the Web. The realization of the system can not only carry on correct guide to Internet users and regulate the behavior of students, but also have important guiding meaning to managers and policy makers for analysis and making decision.
Applying MPC08SP Motion Control Card to the Development of Open CNC System of Grooving Machines
Authors: Song Chao , Yin Ming Fu
Published: September 2013

This article take CNC grooving machine as the study project, take the design of open control system based on PC+motion control card as study method, take use of the powerful motion control function and abundant DLL function library of MPC08SP motion control card, apply Visual C++ 6.0 to the development of the underlying process, gives the design of open CNC system of grooving machine, which satisfies the real-time performance and accuracy of control system.
Analysis of the Data Mining Application Based on Cloud Computing
Authors: Li Xiao Hui , Liu Wei , Wang Le Le
Published: September 2013

Cloud computing as a new network technology has been widely used in various fields, a important role of cloud computing is the storage and management for massive information data, therefore the cloud computing provides a good platform for data mining. This paper first describes simply on cloud computing, and then expounds and analyzes data mining application which based on cloud computing, finally introduces the data mining application based on cloud computing platform.
The Design of Universities Resource-Sharing Network Teaching System Based on Cloud Computing
Authors: Guo Qiu Yan
Published: September 2013

This paper based on the ideology of cloud computing, using the cloud platform of Google App Engine and Web Services technology, utilizing the eclipse, Google Plugin for Eclipse and Java Web, building a sharing platform for university network teaching resources. The design and implementation of the system reduce the capital investment and the burden of system development and maintenance costs, and will bring a great convenience to teachers "teaching" and students "learning. Practice shows that the cloud platform of teaching resources has high stability and scalability than traditional services technology, and can provide new ideas for the system design, so online teaching resource sharing cloud model can be achieved.
The Research on Vehicle Routing Problem Based on Improved Ant Colony Algorithm
Authors: Jiang Zheng Qiang , Wu Yue
Published: September 2013

Vehicle Routing Problem (VRP) plays a vital role in mathematical and logistics research. Its a typical NP-Hard problem, and ant colony algorithm has been proven to be an effect way in solving these problems. An improved ant colony algorithm is proposed to solve VRP on the basis of depth analyzing VRP and ant colony algorithm. It proposes the mathematical model of VRP and designs an improved ant colony algorithm, considering the inefficient solving, easy to partial stagnation shortcomings of ant colony algorithm and the attraction, repulsion, time constraint phenomena in VRP. This paper redesigns the pheromone update rule and the state transition rule and then it makes a simulation experiment by MATLAB programming, the results show that the improved ant colony is feasible and very valid in solving VRP.
A Design of Ubiquitous Learning Environment with the Support of Pervasive Computing
Authors: Zhang Jing , Zhang Li Wei , Liu Bing
Published: September 2013

Application of pervasive computing in education is attracting more and more attention. Wireless communication technology and context-aware technology is widely applied in ubiquitous learning environment. This paper discussed the function, characteristics and component of ubiquitous learning environment, aims to build a campus integrated learning environment and provide adaptive learning contents and service in an intelligent way for learners.
Logistics Simulation and Optimization Design of One Production Line Based on Flexsim
Authors: Tang Xiu Ying , Shi Jie , Chen Li Chang , Yang Lin Lin , Leng Xue Mei
Published: September 2013

At present, with the rapid development of manufacturing industry, the problem in the production process is constantly exposed. This kind of production system is very complicated that it is often the spatial variable, time variable and random variable interdependent dynamic problems. The computer simulation software is the one of the best effective way to find out the problems existing in the production process. This paper takes one product line as example, using Flexsim simulation software in the production line for modeling and simulation. Then the simulation test and simulation analysis is done to find out the bottleneck of the system. Finally proposal is given to solving the bottleneck problem, and Flexsim simulation of new distribution is proved that it could improve the efficiency of the production line.
Model Innovation of Exhibition Logistic Supply Chain
Authors: Wang Xiao Ming
Published: September 2013

Exhibition has been widely recognized as a strong booster of market economy in the world. Exhibition logistics is the basic guarantee for the development of exhibition industry. In this study, some improvement and innovation ideas of Chinese traditional exhibition logistics were proposed through the characteristic analysis of international exhibition logistics. A new supply chain structure model of international exhibition logistics is needed to accelerate the specialization, speed, standardization and informatization of exhibition logistics.
Research on Group Decision Making Model of Low-Speed Pure Electric Vehicle's Technology Integrated Innovation
Authors: Liu Cheng Qiang , Cheng Guo Ping
Published: September 2013

In this paper, on the basis of previous research on group decision making, it summed up the concept and features of group decision making model of the low-speed pure electric vehicles technology integration innovation; and carried on the detailed elaboration about the elements (objectives, standards, support systems, decision-making body, the object and programs, etc.) of group decision making.
Social Impact Assessment of AMT Project Based on the Information Entroy Theory
Authors: Wang Guo Hong
Published: September 2013

The traditional assessment to investment project is difficult to measure accurately the impact that AMT investment project brings to the region including in the social inviroment,regional economy and natural ecological environment,and so on. The theory of information entroy theory gives the weight to the index set according to the amount of information passed by the indexes,which would be more objective. In combine with the traditional AHP method the assessment could get the comprehensive quantitive conclusion judging through which the decision maker could make more wise.
Teaching Reform and Thinking of the Course Electro-Mechanical Systems Dynamics Based on Higher Engineering Education Mode
Authors: Wang Qiao Yi , Chen Juan
Published: September 2013

Electro-mechanical system dynamics is a professional course of integrated post-graduate, it combined with basic theory and practical applications, it belongs to cross - disciplinary of mechanics and mechanical engineering, it not only has the highly abstract and exact science of basic theory , but also has the extensiveness and depth of the practical application.For graduate students’ strong interest and desire involved in taking part in the actual subject actively, electro-mechanical system dynamics course content and teaching model are reformed, case teaching method is introduced, assessment methods are innovated, enable students to master the problem-solving approach and apply it to their own research projects.At the same time，it also guides the students to discover and ask new questions from the actual phenomenon and achieves good results in the practice of the process in training research - oriented students.
The Prediction and Analysis of Helicopter Rotor Rotation Noise in Hover
Authors: Liu Da Wei , Huang Pei Lin , Ji Jin Zu
Published: September 2013

A prediction program for analysis of helicopter rotor rotation noise was developed based on Farassat1A formulation. The acoustic prediction program was validated by the comparison with the WOPWOP program results in the literature.The loads input for the acoustic calculation are obtained from CFD calculation. The directional characteristic analysis was conducted by this program. Some calculations were conducted for evaluating the influence of rotor parameters including rotor speed , blade pitch ,and blade dihedral for the helicopter rotor rotation noise in hover. The results show that some proper changes of rotor parameters can bring benefit in thickness and loading noise of helicopter rotor. Several conductive conclusions were summarized for the helicopter rotor noise reduction.
Design of Midcourse Trajectory for Tactical Ballistic Missile Intercept on the Basis of Zero Effort Miss
Authors: Li Luo Gang , Jing Wu Xing , Gao Chang Sheng
Published: September 2013

Since the maneuverability of the tactical ballistic missile, the midcourse trajectory of interception missile needs design online. Firstly, this paper reasonably simplifies the models and explores the analytical expressions of their relative motion state to obtain a kind of rapid and high-precision computing method of zero effort miss. Secondly, it applies constant thrust for the interception missile, burns out shut-down solid engine, reflects on the index requirement of overloaded interception missile, and designs midcourse trajectory of the interception missile with Pontryagin maximal principle, in accordance with the analytical expressions of zero effort miss. Finally, with the simulating calculation, the prediction methods of zero effort miss and trajectory design method provided by this paper are applied to a situation simulation which is close to the fact as much as possible so as to verify the applicability in the interception of tactical ballistic missile.
Wave Filtering of Ship Dynamic Positioning System Using Particle Filter
Authors: Li Wen Juan , Xu Hai Xiang , Feng Hui
Published: September 2013

This paper presents a nonlinear filter which is particle filter. The filter produces accurate estimates of low-frequency position and velocity only from measured values of ship position and heading in Dynamic Positioning System. The results of simulation confirm the validity and adaptability of the particle filter algorithm.
Simulation and Study on Ultimate Bearing Capacity of Stretcher Bracket for Aeromedical Evacuation
Authors: Wan Jun Lin , Lv Kang , Mao Qin Jian , Zhou Yuan Yuan , Yang Shan Shan
Published: September 2013

As the important airborne equipment of casualty aeromedical evacuation, the structure design of aeromedical evacuations stretcher bracket not only has to meet the mounting interface in the civil aviation aircraft and meet the medical rescue requirements during the casualty evacuation, and also has the good bearing capacity of limit load. A structure design of frame-type aeromedical evacuations stretcher bracket is presented in this paper. Based on the finite element method (FEM), the ultimate bearing capacity of the bracket attachment of this structure is analyzed with nonlinear mechanics, and then the intensity and stiffness under the case combinations of limit load are simulated and analyzed to ensure the good security and reliability of the stretcher bracket during the casualty aeromedical evacuation.
Research on Modern Product Design Method and Procedure Based on the Concept of Full Life Cycle
Authors: Guo Xiao Wen , Guan Pai , Xie Qing Sen
Published: September 2013

This paper analyzed the application of whole life cycle design in product design,and put forward the flow chart of product design method ,then expounds how to use full life cycle design thought in product design method of design thought .At last ,an example of the children’s bed is introduced for illustrating how to use the design method .
Visual Perceptions of Materials in Emotional User Experience Design
Authors: Xia Hui Chao , Zhang San Yuan
Published: September 2013

There is a widely accepted concept that sentimental people are much more than rational people. People usually make their purchasing choices by visual perceptions. In this study, we want to gain the main visual perceptions of materials in some special furnitures in the early phases in user experience design. We used Ethnography and self-reporting to study. We discovered that the main visual perceptions of materials in furniture user experience design of the target users in the near future of the next 1-2 years are comfortable, emotional, and simple. We proposed three basic solutions of emotional user experience design, which were based on context and scenarios. The actual demand of the target users could be more easily understood by designers, and more visual solutions could be used by designers.
Optimal Design of Gears by Means of Genetic Algorithm and Neural Network
Authors: Li, Yong Gang , Ma Yong Mei
Published: September 2013

Optimal design of gears was complicated with much difficulty to determine the parameter of strength constraint equation, and find the optimal solution. Used BP Neural Network to approximate the relative parameter of gears optimization design which was shown by chart. Used Genetic Algorithm to search the optimal solution. The result shows that the application of Genetic Algorithm and Neural Network in gear optimization is effective.
Artistic Techniques for Developing Creativity in Design
Authors: Hassan Furat J. , Bian Xiang Yang
Published: September 2013

The design of future will still be the most confusing and puzzling issue and misgivings that arouse worry and leading to the spirit of adventures to make progress and arrive at the ways of reviving, creativity and modernism. The idea of prevailing of a certain culture or certain product in design depends on the given and available techniques, due to the fact that the computer and their artistic techniques become very important and vital to reinforce the image in the design. Thus, it is very necessary to link between these techniques and suitable way to reform the mentality by which the design will be reformed, from what has been said, (there has no utilization for the whole modern and available graphic techniques in the design processes for developing the creativity in design).
Digital Design of Automotive Wire-Harness
Authors: Liu Yong , Yuan Sheng Rui , Zhou Na , Dang Xun Yi
Published: September 2013

In allusion to the current existing problems of automotive wire-harness design, which are no interaction between 2D design and 3D design, and disconnect between design level and simulation level, the advanced design methods are needed. In this paper, it puts forward a kind of automotive wire-harness design method based on CHS and PRO/E software. Then it details its design steps including schematic / layout / harness design, 3D interaction, data management, etc. Finally, it summarizes the advantages of this advanced design method.
A Design of Ginkgo Cleaner
Authors: Zhang Li Hua , Liu Tao Tao , Li Guang Hui
Published: September 2013

In order to solve the cleaning problem of ginkgo after husking, the author puts forward a design scheme of air-shaker cleaning device for ginkgo kernel and husk. The device consists of feed, fan, shaker and outlet. The parameters of shaker are determined: sieve motion direction angle is 8o, sieve angle of inclination is 20o, crank radius is 0.020m, crank rotational speed n is 320rmp. Test results show that the cleaner has steady transmission, low noise, stable performance and its productivity is 2.2t/h, loss ratio is 1.20%, cleaning ratio is 95.21%. It can meet the production requirements.
Numerical Simulation of Lateral Jet Interaction a Slender Body in Supersonic Flow
Authors: Luo Shi Jie , Liu Yao Feng , Cao Ning
Published: September 2013

A numerical investigation has been conducted to research the interaction flowfield of lateral jet not in the longitudinal symmetry plane on a slender body with rudders in supersonic flow. The surface and space flow features of jet interaction flowfield with different angles of attack was analyzed. The paper also compared with and without jet interaction flowfield characteristics. As a result, the jet interaction destroys pressure distributions of the slender body, and causes normal and lateral loads. With angle of attack, the pressure distributions of the after body and rudders surfaces are change tempestuously. The results also show that the far-field interference played a major role in the lateral jet interaction. Besides, the force/moment amplification factors present highly nonlinear with angle of attack.
Research of Electrolytic-Plasma Carbonitriding and Nitriding Influence on Phase Composition of the Stainless Steel
Authors: Skakov Маzhyn , Kurbanbekov Sherzod , Zhilkаshinova Almira
Published: September 2013

In the present work we have studied the phase structure of surface modified layer of austenitic steel 12Cr18Ni10Ti after electrolytic-plasma carbonitriding and nitriding. It was determined that the carbonitriding and nitriding with the subsequent hardening formed carbide and nitride phase. Also it is revealed that steel 12Cr18Ni10Ti after the electrolyte-plasma processing has high hardness. The microstructure of samples surface is presented by martensite and residual austenite. Optimum modes of steel 12Cr18Ni10Ti carbonitriding and nitriding by electrolytic-plasma way have been identified.
The Study of Outdoor Water Cooling System Suitable for Cold Regions
Authors: Zhang Jian , Zheng Zong Da , Lin Shan
Published: September 2013

Aiming at Air cooling way that is plenty used by HVDC outdoor water cooling system for cold regions, however,Air cooling way has disadvantages of high price,wasteful land and the high cost of running.In this paper,a new type of outdoor water cooling system is designed.The application of this system in the northern cold region will bring huge economic benefits and popularizing value.
Electric Vehicle Battery Distribution Network Optimization
Authors: Xie Chuan Sheng , Zhou Cheng Ying , Zhao Chen Chen
Published: September 2013

Along with the wide spread of electric vehicles in China, the popularity of related facilities are popularizing and improving gradually, and in the meantime, requirements for the efficiency and effectiveness of the facilities arises. This article focuses on problems concerning the efficient electric vehicle battery distribution network, and obtains the feasible distribution programs by optimal model of cost; then evaluates feasible programs by fuzzy comprehensive evaluation method to determine the optimal layout of the distribution network. Numerical results show that the model is flexible, scientific and rational.
An Incremental Locally Linear Embedding Algorithm with Non-Negative Constraints of the Weights
Authors: Hu Jian Zhong , Xu Qing Cheng
Published: September 2013

Locally Linear Embedding (LLE) is a batch method. When new sample is added, the whole algorithm must be run repeatedly and all the former computational results are discarded. In the paper, the LLE algorithm processing on new sample points is analyzed. For the insufficient precision of the processing of traditional incremental LLE, an incremental LLE algorithm based on non-negative constraints of the weights is proposed. Non-negative constraints of linear weights are imposed on the new sample points in the projection process. The simple fitting of the original algorithm from the engineering application is avoided by the proposed algorithm and the problem of the constantly updating of the whole manifold is solved at the case of new samples being added. Compared with the traditional incremental LLE method, S-curve simulation data and engineering examples analysis show the feasibility and effectiveness of the proposed algorithm.
Design of Micro-Positive Pressure Control System for Clean Plant Air Conditioning
Authors: Dong Jie
Published: September 2013

With the increasing demands on heating and cooling, ventilation and cleanliness of modern clean plant, one of the most important topics for modern plant is to learn how to effectively control and management the air conditioning system to meet the requirements of production process on the air conditioning system. This article describes the specific circumstances of the air conditioning system in a coating line clean plant, brings up the design ideas and scheme of realizing plant air conditioning micro-positive pressure with network group control, and provides the control strategy of micro-positive pressure. It has been proved that the scheme has high application and promotion value.