bluuebunny/crossref_metadata_2025 huggingface dataset:
Fuzzy PID Control in the Casting of Hydraulic AGC System Application
Authors: Chen Xiao Hong , Yu Xiao Guang , Yao Yao , Xie Sheng Jian
Published: May 2013

In view of the existing casting hydraulic AGC control system with time-varying nonlinear and time-delay and problems of the traditional PID control parameters is not easy to adjust,the intelligent fuzzy adaptive PID controller is used for thickness optimization control loop control scheme.Based on the original PID controller combines fuzzy inference function.
The Theoretical Analysis of Chain Drive System for Heavy Duty Apron Feeder
Authors: Huo Jun Zhou , Yu Shi Qiang , Li Tao , Yang Jing
Published: May 2013

Taking a certain type of heavy duty apron feeder inmobile crushing station as the object of study, this paper proposed a five-barmechanism to research the velocity fluctuation problems of chain drive systemin an apron feeder. The effects of impulsive loads were analyzed, and amechanics model of meshing area was proposed. The research results are asfollows. 1. In the conveying direction, the number of teeth and sprocket pitch hasthe most influential effect on the vibration. 2. External impulsive loads causea significant increment of chain force, in particular the loads caused by largematerials. 3. The teeth and rollers near the tight-side chain play a major rolein transferring the torque, and the initial pressure angle affects their stressconditions immensely.
Research on Network Coding Based on Convolutional Codes
Authors: Liu Hai Ping , Su Shi Bin
Published: May 2013

For the system with two sources, three relays and one destination, cooperation network convolutional code scheme is presented to solve the relay sharing problem. The scheme searches out convolutional code corresponding to system model, and then decides relay coding structure. Outage Probability analysis and BER simulation show that 3-order diversity is achieved.
Research on Theory of Set Knowledge Granularity Logic Based on the Decision Logic
Authors: Feng Li , Yuan Shu Juan , Wang Jing , Shi Li Nan
Published: May 2013

Combined set pair analysis and knowledge granularity theory, the author puts forward set pair granularity space, and extended rough logic of Pawlak and the decision logic to set pair granularity space, Studied the formula and some special properties of set pair granularity space, thereby expand the application scope of the logic theory.
Design of Audio-Video Player System Based on Android Platform
Authors: Li Xiang Jun , Ma Qiao Zheng , Zhang Xiao Fei
Published: May 2013

The wide application of audio and video technology is becoming more and more popular, involving the development of audio and video players, video conference, digital television, video on demand software, etc. This paper first studies and analyzes the structures of audio and video systems; then according to the analytical results, this paper expands the audio-video system by transplanting the FFmpeg framework, enabling it to support the parsing and decoding of a variety of audio and video formats. At last, this paper proposes the player development scheme by adopting the expanded audio-video system.
Hiding Sensitive Association Rules by Sanitizing
Authors: Wang Hui
Published: May 2013

The goal of knowledge discovery is to extract hidden or useful unknown knowledge from databases, while the objective of knowledge hiding is to prevent certain confidential data or knowledge from being extracted through data mining techniques. Hiding sensitive association rules is focused. The side-effects of the existing data mining technology are investigated. The problem of sensitive association rule hiding is described formally. The representative sanitizing strategies for sensitive association rule hiding are discussed.
A Study on Co-Simulation for Rotating Mechanism of Bogie Separation Device Based on ADAMS/MATLAB
Authors: Liu Chun Lei , Ren Guang Sheng
Published: May 2013

In the process of bogie separation device operations, rotating system is required to push bogie and settlement beam to rotate . After the completion of bogie wheel replacement and maintenance, they need to be pushed back to original position. This paper explains working principle of rotating mechanism of monorail vehicle bogie separation device and performs co-simulation and analysis of rotating mechanism based on ADAMS/MATLAB. Analysis results show that the rotating hinge mechanism and its proportional control system can completely meet the requirements of the rotary motion.
Online Biological Literature MRI Image Classification Study
Authors: Yang Yun Feng , Tang Feng Xian
Published: May 2013

In order to construct a certain standard structure MRI (Magnetic resonance imaging) image library by extracting and collating unstructured literature data information, an identification method of the image and text information fusion is proposed. The method makes use of PHOW (Pyramid Histogram Of Words) to represent image features, combines with the word frequency characteristics of the embedded icon note (text), and then uses posterior multiplication fusion method to complete the classification and identification of the online biological literature MRI image. The experimental results show that this method has better correct recognition rate and better recognition performance than feature identification method only based on PHOW or text. The study can offer use for reference to construct other structured professional database from online literature.
Research and Implementation of Check-In System Based on Android Smart Phone for Meeting
Authors: Chen Ya Bing , Jiang Feng
Published: May 2013

To takes advantage of the convenience of Android smart phone, this paper has researched and designed the meetings check-in system based on it. With the SQLite database background to store users check-ins, the system can import and export the attendance data easily to implement manual meeting check-in function. Meanwhile, this paper has researched the automatic check-in function which is based on the premise that the conference room is covered by WI-FI network, and proposed one algorithm for the attendance personnel position. The experiments show that check-in system running well.
Study on the Correctness of Web Service Composition Evolution
Authors: Cheng Yong Shang , Wang Zhi Jian
Published: May 2013

When Internet has been becoming a platform of all kinds of resources sharing and integrating, service computing can just satisfy this kind of computation. When the users needs and the running environment change frequently, the original structure of the composite service should be rebuilt and reconfigured to need these alterations. Since the availability and the reliability of service composition will not be guaranteed, the correctness of service composition evolution must be verified. In this paper, a formal model-WSPN was presented to describe service composition evolution, WSPN can express the structure of service composition and also can simulate the evolving process of the composite service. In order to keep the evolving correctness of Web service composition, an algorithm was provided to verify the composition relationship between both component services, in this way, the reasonable relationship can be obtained. Finally, the concluding remarks and the future work were pointed out.
Function Model of Management System of Workshop Resources
Authors: Cui Su Hua , Feng Gui Chen
Published: May 2013

Management system of workshop resources is one of the subsystems of Manufacturing Execution System (MES).The design of management system of workshop resources is based on its function model.In this paper the functional requirements of management system of workshop resources are analyzed and its IDEF0 function model is presented,which provide a basis for the development of management system software.
The Design and Simulation Analysis of Virtual Prototype Model for One Kind of Breech Mechanism
Authors: Yang Su Min , Shao Xin Jie , Tian Guang , Han Yue Xia
Published: May 2013

The structural character of breech mechanism is studied and analyzed in order that the virtual prototype model is the best. By the CAD software Pro/Engineer the XX breech mechanism virtual prototype is built. At first, the 3D modeling of the XX Breech Mechanism is generated with the parametric design and virtual assembling, and experiment platform of virtual prototype including all kinds of conditions is set up. At last, the quantitative analysis is performed on the above experiment platform, the experiment resulting is accord with specification data by and large, which validates that the designed breech mechanism virtual prototype is proper and appropriate.
Vehicle Design and Realization of Virtual Maintenance Training System
Authors: Zhou Jing Tao , Wang Huai Guang , Ren Guo Quan , Cao Feng Li
Published: May 2013

This article in view of the problem that the traditional maintenance training methods and means can't adapt to the development of vehicles, based on EON and virtual maintenance training platform, by using virtual reality (VR) which has developed a set of interactive virtual maintenance training system for vehicles. The system on the basis of analysis virtual maintenance training system function and information needs, constructed the system framework, established the key technology and implementation scheme of the system, and studies the process and function of maintenance training system, confirmed the grading rules, grading standards and evaluation standards, including key technology. The development of this system has great practical significance to improve the training effect, effectively solved the problem of high cost and low efficiency in teaching training.
A Quasi-Real-Time MapReduce Schedule Algorithm
Authors: Fu Chun Yan , Zhou Hong , Ge Mao Song , Qu Xiao , Wang Yong Li
Published: May 2013

In this paper, we extend and rewrite MapReduce dispatcher and its quasi-real-time schedule algorithm to support operation scheduling in time-limited. MapReduce dispatcher has an evaluation of completion time of tasks in dependence of rate of progress of tasks at hand, and allocated resource dynamically to every task when they are running. Experimental investigation shows that, the algorithm increase the resource utilization of the MapReduce system, and the goals of quasi-real-time MapReduce schedule has been achieved.
Manufacturing Industry in China Informatization Development Analysis Based on the Internet of Things
Authors: Jia Ming Yu , Gao Qiu Hong
Published: May 2013

In order to speed up the integration of industrialization and informatization in China, to promote the transformation and upgrading of enterprises. This article introduces the project of manufacturing informatization based on internet of things (IOT), analyzes the development of IOT technology, expounds the application of IOT in informatization development, and points out the development trend of manufacturing informatization in China based on IOT.
Intelligent Decision Support System in Damage Control of Damaged Ship
Authors: Li Ang , Pu Jin Yun
Published: May 2013

An intelligent decision support system in damage control of damaged ship combined with data mining is constructed in this paper. The human-computer interaction subsystem, the database management subsystem, the model management subsystem and the knowledge management subsystem are introduced in detail and some programming technologies of the system are displayed. The pivotal technology of the realization of this system is discussed briefly at last.
Application of Fitting Estimation Method in GPS Height Fitting
Authors: Cheng Qian Wen , Zhang Lu Ben , Chen Hong Hua
Published: May 2013

The key point researched by many scholars in the field of surveying and mapping is how to use the given geodetic height H measured by GPS to obtain the normal height. Although many commonly-used fitting methods have solved many problems, they all value the pending parameters as the nonrandom variables. Figuring out the best valuations, according to the traditional least square principle, only considers its trend or randomness, which is theoretically incomprehensive and have limitations in practice. Therefore, a method is needed not only considers its trend but also takes randomness into account. This method is called the least squares collocation.
Analysis of Minimum Decoding Complexity Quasi-Orthogonal Space-Time Block Code for 6 Transmit Antennas
Authors: Liao Mang , Wang Meng Xing , Jin Ling Xu
Published: May 2013

Previous work on quasi-orthogonal space-time block code (QO-STBC) has been designed to achieve full rate and full diversity gain for four antennas. However this conventional QO-STBC scheme decoding is complex. For achieving more diversity gains, an extended QO-STBC scheme is provided to achieve full diversity with one rate for six antennas. Furthermore, by transforming the detection matrix to an orthogonal one, this novel scheme can achieve a simple linear decoding. Therefore it proposes an extended minimum decoding complexity QO-STBC (MDC-QO-STBC) for six antennas. Due to eliminate the interference from different equivalent channels, the novel extended MDC-QO-STBC scheme improves transmission reliability and linear decoding complex compared with the conventional QO-STBC scheme. At last extensive simulation results are presented to prove the theoretical analysis.
Design of an Information Integration Control Network for Hybrid Electric Trucks
Authors: Xu Jun , Li Gang Yan , Yang Fei
Published: May 2013

In view of the requirements on multi-target information interaction and implementing complicated control strategies among different ECUs in hybrid electric trucks, an information integration control network based on CAN bus is proposed. A HCS12 dual-core processor MC9S12XDG128 is adopted to design an information integration module for sensor signal acquisition and data transmission in the network. Application layer protocol is defined to optimize the message transmission mechanism. Meanwhile, Rate Monotonic Analysis (RMA) method is adopted to analyze bus load rate and real-time performance of the network. Bench test results have shown that the designed information integration control network for hybrid electric trucks owns good real-time performance and is reliable to implement communication and control tasks with low bus load rate.
Research on IEC 61850 Gateway Based on MMS Mapping
Authors: Hou Si Zu , Kong Feng Ying , Liu Wei
Published: May 2013

IEC 61850 is an international standard developed by the International Electrotechnical Commission TC57 substation automation communication networks and systems. It uses MMS (Manufacturing Message Specification) as a real-time communication protocol of the application layer, and achieves the communication between the substation layer and the spacer layer. This paper describes the features and functions of the IEC 61850 and MMS technology and focuses on the principle of MMS mapping in the application of IEC 61850 , then preliminarily leads to the overall design framework of the IEC 61850 gateway.
Embedded Analyzer of Crude Oil Design and Implementation Based on Nuclear Electronics
Authors: Guan Xiao Dan , Liang Wan Lei
Published: May 2013

The component indicators of crude oil are very important in the field of oil transfer measurement. It is the parameters related to crude oil production. This paper describes a moisture/gas content of crude oil measurement system based on MCU and nuclear electronics. The measurement principle, the hardware circuits of the system and the analysis of the system error in the application process are introduced. This measurement system can realize non-contact continuous measurement, so it avoids pipeline corrosion environment on the measurement equipment. At the same time, it uses a low power MSP430F149 microcontroller chip, so it has high cost performance compared with similar measuring devices.
Research and Implementation of Embedded CNC System Based on Linux
Authors: Xu Wei , Liu Zhao Ming
Published: May 2013

Through the in-depth analysis of the existing embedded CNC system software, this paper presents a design of embedded CNC system based on Linux, and describes the key technologies of the implementation in detail. This design is based on open Linux systems, can improve the system performance, reliability, reduce system development costs, so has some practical value.
The RF Amplifier Remote Monitoring System Based on Gigabit Ethernet
Authors: Bao Ji Long , An Peng
Published: May 2013

Based on the Gigabit Ethernet Protocol, the RF (Radio Frequency) power amplifier remote monitoring system was designed. The system collect digital signal from predistortion module, transmit the gigabit Ethernet network to outside, and improve the system efficiency. It adopts the SOPC technology hardcore and softcore, which makes the whole system realized in the single piece of chip. Softcore is the Alteras IP core--Nios II processor, design processors, make use of the custom parts and programs gigabit Ethernet transceiver and internal driving in processor. The integration and reliability of the system are in great improvement. Through testing, system function can satisfy transmission requirements of normal transceiver RF power amplifier state information and control information.
Study on Debugging Method Based on Embedded System Development Platform
Authors: Yang Peng Hao , Wang Rong Liang , Fan Zi Guo
Published: May 2013

U-boot is an open source project under the protocol of GPL, which has been widely used as boot application on embedded system. Normally, U-boot initializes hardware and send to hardware information to the embedded OS. In mobile thermals, especially in the arm-based mobile device, U-boot has played an important role. U-boot supports many kinds of development boards. However it does not support every board, so it needs to be modified to fit other board. This paper analyses the boot procedure and the source code of U-boot, studies how to add a custom command on U-boot source, analyses the protocol of USB, then gives us a new way to download the binary U-boot file or the kernel directly to RAM and run. In this way, we do not need to burn the binary U-boot file or the kernel to Flash. This has save a lot of time in embedded system development.
The Design and Verification of Online-Programming IP Based on SOC
Authors: Hu Yue Li , Jiang Chao , Zhu An Ji , Yu Chao
Published: May 2013

The thesis mainly proposed the design of a reliable online-programming IP core for MV10, a SOC, which is an 8-bit MCU integrated with PWM, ADC, CAN and other function modules. In this thesis the online-programming IP core can write BIN file into the on-chip SRAM for program debugging with high accuracy-communication and error self-detection. The IP core embedded in MV10 has passed the silicon verification with Global Foundry 0.35um mix-signal library. The online-programming IP core proposed in this thesis can also be used in other SOCs.
A New Hybrid Ant Colony Optimization Algorithm for Permutation Flow-Shop Scheduling
Authors: Zhang Xiao Xia , Liu Shao Qiang , Ma Yun Yong
Published: May 2013

This paper presents a novel hybrid ant colony optimization approach (ACO&PR) to solve the permutation flow-shop scheduling (PFS). The main feature of this hybrid algorithm is to hybridize the solution construction mechanism of the ACO with path relinking (PR), an evolutionary method, which introduces progressively attributes of the guiding solution into the initial solution to obtain the high quality solution. Moreover, the hybrid algorithm considers both solution diversification and solution quality, and it adopts the dynamic updating strategy of the reference set to accelerate the convergence towards high-quality regions of the search space. Finally, the experimental results for benchmark PFS instances have shown that our proposed method is very efficient to solve the permutation flow-shop scheduling compared with the best existing methods in terms of solution quality.
Prediction of Short-Term Transportation Flow Based on Optimizing Wavelet Neural Network by Genetic Algorithm
Authors: Yang Sheng Long , Ma Jun Jie , Wang Cui Hua , Zhang Sheng Ma
Published: May 2013

The weights and the parameter of Wavelet basis of the Wavelet neural network function are always initialized randomly, so the evolution of network tends to be local optima and each forecast results will vary widely. Genetic algorithm is used to optimal the weights and the parameter of Wavelet basis function of the Wavelet neural network, to construct a Wavelet neural network which is on the basis of genetic algorithm. In this paper, we apply this method to forecast short-term time traffic flow, verify with instances, and compare with Wavelet Neural Network Method. The results indicates that this method is not only more stable, but more precise.
Application of QFD in the Design of Fire Main Fight Vehicles
Authors: Zhu Wu Ba
Published: May 2013

Quality function deployment (QFD) is a powerful tool of the customer requirements into technical characteristics. With QFD, the design of fire main fight vehicles can be expressed more credibility via the correlation matrix. After the client important degree is calculated through AHP method, requirement is deployed and correlation matrix is built, the requirement important degree is decided. And an example is presented to express and verify the method. It shows that the method is simple and reflects the requirement of users.
Scheme Selection of Camouflage Screen Design Based on Hierarchical Grey Relational Analysis
Authors: Jia Qi , Lü Xu Liang , Zeng Zhao Yang , Xu Wei Dong , Hu Jiang Hua
Published: May 2013

As many influence factors and technical problems should be taken into account in the scheme selection decision of multi-band camouflage screen design, a method based on hierarchical grey relational analysis combing analytic hierarchy process (AHP) and grey relational analysis (GRA) was developed. The hierarchy model was constructed firstly, and the judging matrixes were established through analytic hierarchy process. The weight value for each index which effects the evaluation was determined accordingly. The relational degree between an individual alternative scheme and the ideal alternative and the worst alternative are calculated by grey correlation degree, and the evaluation degree is calculated according the grey correlation degree and weight value. Based on the relational degree a quality order for the alternative schemes can be obtained. Experiment was carried out, which proved that the method mentioned in this paper had both strict mathematical theory basis and good practical utility. This method can be also used in scheme selection decision of other camouflage designs.
The Genetic Algorithm with Two Heuristic Rules for TSP
Authors: Wang Yong
Published: May 2013

Many complex discrete manufacturing problems, such as manufacturing sequencing problem or machine scheduling problem etc, can be converted into a general traveling salesman problem (TSP). TSP has been proven to be NP-complete. The genetic algorithm is improved with two heuristic rules for TSP. The first heuristic rule is the four vertices and three lines inequality. It is applied to the local Hamiltonian paths to generate the better solutions. The second heuristic rule is executed to reverse the local Hamiltonian paths, which generates new better solutions. The two heuristic rules coordinate with each other and they are merged into the optimization process of genetic algorithm to improve its performance. The computation results show that the improved genetic algorithm can find the near optimal solutions for most of the TSP instances.
Periodic Solutions for Higher Order Delay Differential Equation
Authors: Liang Xin , Cong Fu Zhong , Ma Ming Juan , Zhang Yu
Published: May 2013

In this paper, we obtained the existence of periodic solutions for a class of even order delay differential equations. It is available in the Vibration, Noise Analysis and Control. Based on combining a method of Fourier analysis and the Use of the Schauder fixed point theorem, we give the proofs. This generalizes results developed by W. Layton to higher order equations.
Static Analysis and Optimization of the Slide’s Structure of Slider-Crank Type Cluster well Pumping Unit(SCTCWPU)
Authors: Sun Wen , Wang San Min , Ren Tao , Qu Wen Tao
Published: May 2013

Centric slider-crank mechanism forms the main mechanism of slider-crank type cluster well pumping unit(SCTCWPU). The friction and wear is the core problem of (SCTCWPU). The pressure of the slide upon the rail is one of the major factors of the friction and wear between the roller and rail.This paper presents the static analysis and optimization of the structure of the slide. In addition,a comparative analysis of the two types of the slide’s structure is made on the basis of actual working conditions.
Research on a Photovoltaic Generating System Based on High Step-Up Ratio Boost Converter
Authors: Shi Ji Ying , Wang Zi Man
Published: May 2013

In order to improve the performance of photovoltaic generating system, an improved interleaved boost converter was used as Maximum Power Point Tracker (MPPT) to match the power with the load. Compared with the traditional boost converter, the advantage of improved interleaved boost converter is high step-up ratio, low input ripple current and improved reliability. Based on this topology, the MPPT control strategy of variable step size perturbation and observation (P&O) method is adopted, photovoltaic array can track the maximum power point by adjusting PWM duty ratio of the boost converter. The simulation results certify the correctness of theoretical analysis.
Balance and Vibration Analysis on an in-Line Five Cylinders Engine
Authors: Li Shi Yu , Yuan Zhao Cheng , Ma Jia Yi , Liu Meng , Yu Ying Xiao
Published: May 2013

Based on an existing in-line six cylinders engine, this paper built a model of in-line five cylinders engine, and analyzed this engine’s balance property in theory. In order to improve the balance of this in-line five cylinders engine, a kind of double-shaft balance system was used, and it turned out to be effective by simulating with multi-body dynamic software-AVL Excite.
Tower Equipment Lifting Crane and Tools Selection and Optimization
Authors: Sun Ai Ping , Jia Hong Wu , Ma Yong Peng
Published: May 2013

Combined with a low temperature methanol wash unit tower equipment lifting practice, analysis the integral lifting method of large equipment selection, process route establish and lifting machines and tools selection and lifting scheme optimization, and points out that the heavy machinery used in large equipment lifting is the direction of future development.
Design and Research of YGD450 Cut Tobacco Filling Value Tester
Authors: Huang Wei Dong , Yu Yong Min
Published: May 2013

YGD450 intelligent tobacco filling value tester is a new type of intelligent filling value apparatus which uses the new technology and new process development and production. It uses Chinese color liquid crystal display with good man-machine interface that the height measuring, filling value, variation coefficient, working state can be read on the screen; for it can be directly through the keyboard to set parameters, so it is simple operation.Meanwhile it has a self-diagnosis fault function, convenient repair and maintenance. It has a RS232 interface, so the test data can be uploaded directly to the host computer form statistical report, in order to realize the production of modern management.It has a very important role to improve quality, reduce cost, guide cigarette production process, evaluate cut tobacco and tobacco stem indicators .
Brief Analysis of Torsional Vibration of Vehicle Engine
Authors: Zhang Li Rong
Published: May 2013

This article has established the machine shop truck with the engine shafting torsional vibration model, analyzed the engine rotation inertia and the torsional rigidity, established the engine crank torsional vibration equation, analyzed the machine shop truck to have the torsional vibration reason with the engine, proposed the engine torsional vibration reduced the method, has certain reference value to the engine design and the use.
Simulation and Experiment for the Position of Standing Wave Levitation
Authors: Liu Jia Jun , Jiao Xiao Yang , Chen Hong Xia , Liu Qin , Yang Zhi Gang
Published: May 2013

It is important to find the proper levitated positions in the standing wave levitator. Using ANSYS and MATLAB, the standing wave field and the time average potential are simulated with the levitator whose radiating surface and reflecting surface are concave spheres. The simulation results show that the position close to reflecting surface deviates from the central axis, the others in the central axis. Levitation experiments for the light specimens are carried out with the standing wave levitator, which conforms to the simulation results.
CFD Simulation and Computation of Pressure Loss of Resistance Muffler
Authors: Ren Jia Wei , Jiang Qin Yu , Wang Zhen
Published: May 2013

Computational fluid dynamics (CFD) software was used to simulate the internal flow field of an example muffler, and compared the results with the experimental data, verifying the reliability of the simulation algorithm. On this basis, changed the example muffler structure, researched the pressure loss of muffler which was influenced by the insert duct, the position of the baffle and the inlet air velocity. The corresponding regularities have been obtained with the results of computations, which provide a basis for the design of the muffler.
AC/DC Permanent Magnet Synchronous Generator Design and Research
Authors: Sun Yu Ping , Kang Kai
Published: May 2013

This paper has designed and produced an ac/dc permanent magnet synchronous generator which used in ac/dc power system independent. The design of the motor and the basic properties of the motor is discussed in this paper. In order to reduce the voltage regulation of the permanent magnet generator, installation of a soft magnetic material in the generator permanent magnetic pole tail, by increasing the motor load quadrature axis reactance drop improves motor voltage regulation. A prototype is made and test analysis, the generator voltage regulation rate of small, high efficiency, and the simulation result is consistent with the basic design to achieve the requirements.
A Optimization Design of the Tire Gravity-Type AS/RS
Authors: Cui Yuan Bo , Shen Min De , Zhao Yu Xin
Published: May 2013

Types of tire storage and their advantages and disadvantages were introduced, a optimization design method for the tire gravity-type AS/RS with tire rolling principle was proposed in paper.
An Algorithm of Inter Satellite Links Based on Ranging and Access
Authors: Peng Pai , Zhu Yi Fan , Hou Hong Tao , Zhang Wang Xun
Published: May 2013

It is a problem to build Inter Satellite Links so that Region Navigation System has optimal performance. Therefore, the article puts forward an algorithm, which synthesizes the time of satellites accessed and the distance of satellites. And then it carries out a simulation in navigation system to certify the superiority of the algorithm. The experimental result shows that the ISLs can effectively improve the performance of navigation system. And comparing with the traditional Minimum Distance Algorithm, the proposed algorithm has the same effect on improving the performance of navigation system and needs fewer times of changing links.
Estimation for Variation of the Damping Force Induced by the Expansive Movement of Shock Absorber
Authors: Kim Gi Man , Yun Seong Ho , Choi Seong Dae
Published: May 2013

In this paper, the damping force loci of a twin tube shock absorber were estimated by using the empirical data. The variation of the damping force was investigated for movements of piston such as the expansion. The relationship between the piston velocity and the damping force were estimated by using the empirical data of four different conditions of coil spring turns. Also the relationship between the coil spring turns and the damping force were estimated by using the empirical data of four different piston velocities. Based on the experiment results, the estimated damping force variation functions provide the physical information of the components of the main piston valve system to save the manufacturing time and cost for the shock absorber
Using Axiomatic Design and TRIZ in (re)Designing of Product Architecture Toward Upgradable Products
Authors: Janthong Nattawut
Published: May 2013

The movements to personalized products and up-to-date technology speed up the time of products become obsolete (partially obsolete) before the end of their life. Thus, the capability to design product more flexible is the key competitive factor leads to secure product cost and extend the product life time. In this paper, the (re)design methodology that leans on Axiomatic design and TRIZ has been developed and implemented to enhance flexibility of a product meeting customer’s requirements and support future change. The paper shows, through a case study, how the flexible are created for specific industrial product: electric towing vehicle.
Work Principle and Application of Linear Motion Unit
Authors: Zhao Yu Xin , Shen Min De , Cui Yuan Bo
Published: May 2013

This article introduces the structure, working principle, simple calculation and main application of the linear motion unit.
Calculation of Bridge Transverse Load Distribution Coefficient Based on Generalized Rigid Cross-Beam Method
Authors: Liu Han Bing , Wang Bai Ying , Wang Xian Qiang , Jiao Yu Bo
Published: May 2013

Rigid cross-beam method is one of the most widely used calculation strategy for bridge transverse load distribution coefficient, which is based on grillage theory. However, the shear deformation of the main girder and the difference of transverse load distribution in longitudinal direction are ignored in the calculation process. In this paper, a generalized rigid cross-beam method are proposed based on the displacement beam theory and torsion theory of thin-walled bars, which can take account of the influence of shearing deformation, the difference of the transverse load distribution in longitudinal direction, and torsional behavior of the beam. Numerical simulation demonstrated that the proposed method possesses favorable accuracy and applicability.
Inverse Design of Airfoils Using Target Pressure Optimization
Authors: Liu Ya Feng , Ma Dong Li
Published: May 2013

The Direct Iterative Surface Curvature (DISC) airfoil design method developed by NASA Langley, which is one of the inverse design methods, is robust and effective. In order to determine the target pressure distributions of airfoils, this paper used the uniformed B-spline interpolation for the parameterization of the target pressure, and a Genetic Algorithm (GA) was used to optimize the coordinates of the control points of the B-spline functions. Two cases were given to prove the effect of the DISC design method. A laminar flow airfoil was then designed using DISC after a target pressure had been determined by a GA. Results show that the DISC method based on target pressure optimization using GAs is pretty effective.
Research on Bridge Transverse Load Distribution Coefficient of Beam System Theory Based on Finite Difference Method
Authors: Liu Han Bing , Wang Bai Ying , Zhang Peng , Jiao Yu Bo
Published: May 2013

The calculation methods of transverse load distribution coefficient based on beam system theory include hinge method and rigid connected beam method. The calculation process is complicated and can usually be used through special tables. However, the traditional tables for ten beams can not satisfy the design requirements with the development of transportation. Therefore, a series of simple and practical analytical formula are proposed based on finite difference method. A numerical simulation of simply supported beam bridge is used to verify the effectiveness of the proposed method. The results reveal that the proposed method possesses favorable accuracy.
Research on Sustainable Design Strategies of Campus Building
Authors: Song Sheng , Xu Jian He , Zhang Chun Hui
Published: May 2013

Sustainability is an important concept in todays architecture and will be even more so in the future. This paper explores sustainable design strategies through several cases of campus building. Five strategies of sustainability are studied: context, aesthetic, materials, energy and enhance lives of inhabitants. The conclusions show that sustainable design strategies are naturally producing building with a regional character. The approach varies according to the opportunities and constraints of each project, and with the ecological characteristics of each region.
Applications about the Internal Circulation Anaerobic Reactor in Wastewater Treatment Industry
Authors: Zhang Guang Yan , Deng Chao Bing , Zhang Juan , Zhu Hong Xiang
Published: May 2013

With the study of internal circulation reactor, we can know more about the improved technology about it working principle and application. Its application in industry has become increasingly mature and widespread. This paper introduces the internal circulation anaerobic reactor, the working principle and technical characteristics, and different areas of application of wastewater treatment within the circulation reactor and its operation instance. The last part is the outlook for the broad application prospects of the internal circulation anaerobic reactor.
Evaluation on Public Bicycle Traffic System
Authors: Feng Tian Jun , Liang Chun Yan , Wu Li Xin
Published: May 2013

First, the public bicycle traffic evaluation index system is established by six indicators measured, including system characteristics, environmental pollution and service levels. Further, the function models are established. Last, comparing comprehensive evaluation index value of bicycle, bus and motor vehicle three traffic kinds of transportation by a case, the result shows that public bicycle traffic has an absolute advantage among them within 3 kilometers.
The Design of Railway Information System Integration Based on IOT
Authors: Li Li , Wang Xi Fu , Lei Xiang
Published: May 2013

When IOT applies in practice, the domain of railway is the most promising field. Through elaborating the essence of railway information sharing, combining Internet of Things (IOT) technology characteristics in railway transport system, this paper analyzed the integrated process. It designs railway information systemintegration scheme based on IOT in term of realizing railway informationsharing, so as to provide the theoretical and technical support for therealization of railway business and system information sharing and collaborative.
Study on Business Model of Motorway Service Area Based on TOPSIS-Entropy Method
Authors: Peng Feng , Zhan Bin
Published: May 2013

This paper firstly points out the concept of the Motorway Service Area. With the features it included being analyzed, a reasonable index system of Motorway Service Area is being set up. Then the TOPSIS-Entropy analysis model is presented. For this part, entropy method is used for empowering the evaluation indicators of business model, thus the business model is evaluated and sorted. Finally, an example verifies the validity and applicability of the model.
A Genetic Algorithm for the Mixed-Model U-Line Balancing Problem
Authors: Dong Hai , Cao Jian Hua , Zhao Wei Ling
Published: May 2013

This paper presents a multi-objective genetic algorithm to solve the U-shaped assembly line balancing problem. The performance criteria for the number of workstations and the variation of workload are considered. The results of experiments show that the proposed model produced as good or even better line efficiency of workstation integration and improved the variation of workload.
Design for Enterprise Asset Management Evaluation System of Power Generation Enterprises Based on KPI
Authors: Zhang Ke Wei
Published: May 2013

Design for enterprise asset management (EAM) evaluation system of power generation enterprises based on key performance indicator (KPI) is proposed according to application of enterprise asset management system in power generation enterprises. KPIs preparations for implementation, goals and design principles are discussed. KPI-based EAM indicators of power generation enterprises are divided into operation management indicators, maintenance management indicators and materials management indicators in three parts. Finally benchmarking management analysis, comparative analysis of time trends and horizontal comparative analysis are used to analyze and evaluate the indicators.
Optimum Charge Plan of Steelmaking Continuous Casting Based on the Modified Multi-Objective Evolutionary Algorithm
Authors: Song Hong Xi , Zhang Jian Xin , Gao Kun , Meng Wei , Cheng Li
Published: May 2013

The charge plan is a basic problem of the metallurgical industry. Through a comprehensive consideration of the process constraints and production costs, charge plan is a typical multi-objective optimization problem. A multi-objective optimization model of charge plan was built in this paper. As direct encoding is hard to be used in the many constraints problem case, a new method of generate feasible solutions based on constraint satisfaction was proposed. A novel adaptive grid algorithm was also proposed to improve the current multi-objective evolutionary algorithm’s population maintain strategy. Finally, the proposed multi-objective charge plan model was solved, and more meaningful solutions for this problem were obtained.
Research on Collaborative Management Strategy of Spare Parts Based on E-Marketplaces
Authors: Liu Jun , Jiang Tian
Published: May 2013

Spare parts are a kind of protective materials for normal equipment maintenance and emergency treatment. Effective management of spare parts can not only guarantee the continuity and safety of production, but also improve the productivity. Firstly, the paper summarized the characteristics of spare parts and current problems existing in their management. Then it established the collaborative management model of spare parts around procurement management and inventory management of spare parts. Finally, the paper proposed the operation mode of collaborative management based on e-marketplaces – the third-party e-marketplace. Furthermore, there provided the functions and operation process of the third-party e-marketplace. Third-party e-marketplaces can realize the collaborative management of procurement and inventory through integrating members of the company alliance in horizon and associating suppliers with purchasers in vertical.
An Order Fulfillment Model for the LED Chip Manufacturing Plant
Authors: Wu Horng Huei , Li Ming Feng , Hsu Tzu Fang
Published: May 2013

The LED chip manufacturing (LED-CM) is an important process in the LED supply chain. The make-to-order production strategy is a general production model for the LED-CM plants to satisfy the variety requirement of their customers. However, the special features of the unstable production output and a product composed of the chips of different feasible Bins exist in the LED-CM plant. The production planner will confront the issue of effective inventory control and exact due-date performance under the severely competitive pressure. Therefore an effective order fulfillment procedure for production planners is a required key issue to accomplish the inventory control and exact due-date performance. An order fulfillment model for production planner is thus proposed in this paper to meet the requirement of the LED-CM plants. A real-life LED-CM case is also utilized to demonstrate and evaluate the application and effectiveness of the proposed model.
Forecasting and Analysis the Demand of Agricultural Mechanization for Economic Development
Authors: Ju Jin Yan , Zhu Rong Xin , Geng Lei
Published: May 2013

The development of agricultural mechanization not only has to consider its development speed, but also should coordinate with economic development. Therefore, taking economic development as the independent variable, and agricultural mechanization development as the dependent variable, the nonlinear relationship model was established. Then, on the basis of forecasting GDP which on behalf of the economic development level, the demands of agricultural mechanization for economic development was predicted. Given the limitations of single forecast model, the nonlinear combination forecast models based on BP neural network was established to forecast the development relationship between economic and agricultural mechanization. The predicted results show that the fitting mean absolute percentage error is 2.61% for the relationship of economic development with agricultural mechanization development, and the fitting mean absolute percentage error is 2.14% for the GDP, which are all far less than the fitting error of traditional forecast models. The validation forecast was carried out; the results show that the combined forecast model can effectively improve the prediction accuracy. The demand of agricultural mechanization for economic development was forecasted from 2012 to 2020 in China using the established nonlinear combined forecast model based on BP neural network. The results show that the demand of total power of agricultural machinery for economic will be 1232298.2 MW by 2015 and 1560579.6 MW by 2020.
SNA Based Expert Knowledge Map Design for Ship-Block Scheduling Decision-Making
Authors: Huang Yong Wen , Jiang Zu Hua , Liu Li Jun
Published: May 2013

To organize the experts rationally and facilitate the sharing of expert knowledge, an expert knowledge map framework based on social network analysis (SNA) for ship-block scheduling is proposed. The function of expert knowledge map is analyzed, and the approaches of SNA based knowledge map building are introduced. Then, the network structure was analyzed quantitatively to find the factors that hold back the spreading and innovating of knowledge by SNA. The result indicates that SNA can offer the reliable basis on how to take strong measures to organize the experts, which can improve the expert knowledge map’s structure and the effectiveness of knowledge navigation and sharing.
A Quantitative Model for Safety Evaluation of Food Supply Chain Based on CAS
Authors: Mu Jing , Jia Wen Xin
Published: May 2013

Food safety is a challenge not only faced by a single firm but the whole food supply chain. Traditionally, food supply chain is simply recognized as a system. Instead, it is a complex adaptive system (CAS). In this paper, we investigate the complex adaptive features of food supply chain, and propose four main food safety influencing factors: environment sanitation, safety awareness, information sharing and technology level. Then based on CAS, a quantitative model for safety evaluation of food supply chain is set up. This paper helps us to better understand the problems and phenomena in food supply chain.
A Study on Competitiveness Evaluation of Cloud Outsourcing Vendor
Authors: Liu Lu , Tao Jian Ying , Shan Xiao Hong
Published: May 2013

The paper analyzes the changes of factors that influence competitiveness of cloud outsourcing facilitators under the promotion of cloud computing technology from perspective of vendor, and gives a fuzzy comprehensive model of competitiveness of vendor.
Dynamic Truckload Pick-Up and Delivery Problem with Time Windows
Authors: Zhou Chang Feng
Published: May 2013

A rolling horizon framework for the dynamic assignment and sequencing of trucks to jobs consisting of picking up and delivering full truckloads when requests for service arise on a continuous basis. A mathematical formulation of the problem faced at each stage is presented; its solution allows for the dynamic reassignment of trucks to loads. Loads have associated time windows for pickup and delivery, and the objective function includes explicit penalty cost for not serving a particular load. A solution algorithm is presented and implemented, and computational results are presented.