bluuebunny/crossref_metadata_2025 huggingface dataset:
Design and Implementation of Module Hot-Plugging in Equipment Management Platform
Authors: Wang Shu Rong , Meng De En , Zhao Jin Song
Published: December 2012

Due to present situation of equipment management in power plant, a development platform for equipment management application which is to achieve hot-plugging module has been presented. The functions of business framework platform and technology of hot-plugging module have also been introduced. Some base functions of business framework platform have been elaborated, such as design of base class, module management function, and menu authority management etc. How to plan module file hierarchy, plan function file hierarchy, design business page, release business module, and install or uninstall business module in the process of business development have been illustrated.
Classification of Men’s Shoulder Shapes Based on Pyramid Method
Authors: Cui Ming Hai , Choi Young Lim , Nam Yun Ja
Published: December 2012

This study conducted 3-dimensional grouping of shoulder shapes based on the feature points of the neck and shoulder by using 3-dimensional technologies. The study first extracted four feature points on the shoulders using the Pyramid method and formed a pyramid, and then projected them on tangent planes on the x-, y- and z-axis. This step was followed by an analysis of 45 measurements, including the angles and distances between the vertexes of the projected pyramid. The factor analysis of the measurements found out five major factors. The explanatory power of the factors was 92.29 percent.
Study on Custom Service Combination Based on BPEL
Authors: Cai Yang Jun , Le Zhao
Published: December 2012

A custom service combination based on Business Process Execution Language was put forward. It mainly studied one-off recipient and keeping the business logic order unchanged. It was proposed a solution that made the serial workflow realize the local parallelism from three aspects such as message dependency, a directed acyclic graph to workflow, and the implicit message dependency. The algorithm of implementation was also discussed. A custom service combination application of ‘stocking house transactions’ and ‘stocking house mortgage’ showed the feasibility and validity of this algorithm. The system generates the BPEL by analyzing various business stakeholders’ Web Service Description Language interface thereby determining the dependence of each business order, together with maintaining the existing business logic. The BPEL enhances the local parallel processing, and makes the overall processing time reduced.
Flow and Density Difference Lattice Model and its Numerical Simulations Analysis
Authors: Dai Hao , Yuan Zhen Zhou , Tian Jun Fang
Published: December 2012

Based on Nagatani’s model, an extended car following model named flow and density difference lattice model (FDDLM) was proposed. Using the linear stability theory, the stability condition of the new model was obtained. The phase diagram presents that density difference effect is more efficiently than flow difference effect in improving the traffic flow stability and FDDLM could suppress traffic jam effectively. The numerical simulations are consonant with the analytical results and show that considering the flow and density difference leads to the stabilization of the system.
An Intelligent Method Optimizing BP Neural Network Model
Authors: Xing Hai Hua , Lin Hong Yan
Published: December 2012

How to build the model represents the complex relationship of data and how to optimize the model has been the core issue of data mining research. BP neural network was able to characterize the nonlinear data relationships by training. But BP neural network is easy to fall into local minimum, and its hidden nodes, the connection weights and thresholds are not easy to determine. To overcome the shortcomings of the BP neural network model, this paper presents an intelligent method based on genetic algorithm optimizing the BP neural network according to the error minimization principle. Experimental results with function approximation and remote sensing image classification indicate that the optimized model can be an effective way to improve forecasting accuracy.
Research on Particle Swarm Optimization for Protein Structure Prediction
Authors: Wang Shi Gang , Wang Feng Juan , Jiang Shu Feng , Zhang Hong Jun
Published: December 2012

Protein structure prediction occupies an important position on bioinformatics science. In this paper, basic theory of particle swarm optimization and some theory models of protein folding study are introduced. Using modified particle swarm optimization, the protein structure prediction is predicted, and good performance of algorithm is verified by testing results of Fibonacci sequence. In the end, the future on protein structure prediction solving by particle swarm optimization is prospected.
Development of Information Management System Used in Laboratory
Authors: Hu Yu
Published: December 2012

The aim of this paper is to develop a Laboratory Information Management System (LIMS). The system will act as a secure repository for both public and proprietary data. The public repository will contain all the data from other public repositories as well as the data released by the researchers into the public domain. The secure repository will manage the data and maintain its privacy until the researcher who owns it shares it with the public. This secure repository needs login credentials that should be validated to access the system. It is this type of system that would be used to design the experiments that would be submitted to the LIMS system.
Application of Red Spider Software in Multimedia Network Classroom
Authors: Jia Song Mao , Dai Xi Liang , Chen An Yu , Zhou Xiang
Published: December 2012

Red Spider software is introduced in line with the features of multimedia network teaching. First introduced are the features of Red Spider software, and then described are the main functions of the software. Finally, several problems concerning practical application are listed out.
Slicing Objects Using UML State Diagram
Authors: Wang Xi , Wei Fang , Cheng Chuan
Published: December 2012

System modeling reduces ambiguity, misunderstanding, and misinterpretation of system specifications. Modern systems tend to be very large and complex and they are hard to understand, difficult to modify and test. There is a need to analyze a particular functionality, such as a requirement of interest or a transition, a particular system feature. In this paper, we present a slice approach to generate the slices based on the UML state diagram. The slice algorithm and slice criteria are proposed in the paper. The UML state diagram slices can be applied in the fields of the software testing such as regression test, debugging and maintenance.
The Optimization Design of Overhead Traveling Crane’s Box Girder
Authors: Tian Guo Fu , Zhang Shi Zhou , Sun Shu Hui
Published: December 2012

The box girder overhead traveling crane is one kind of hoisting machine, which is widely used in factories, mines and other enterprises. Its main structure is box girder, which accounted for the largest proportion of the whole weight. In order to improve the performance of the whole machine and reduce energy consumption, an optimization model is established on the basis of the whole stress analysis and it was applied to make specific optimization design.
Accessories’ Matching Design Study and Development
Authors: Yu Xin Qiu , Fan Li Xia , Zhang Hong Xia , Chen Yu Xian , Yang Pei Lin , Wang Zhe Feng
Published: December 2012

The style of romanticism is treated as the main garment and the independent development of apparel fabrics as the point cut. The matching design of fashion accessories combined with the patterns, colors, styles, materials, functions and so on. The main manufacturing techniques were the pattern weaving technique, heat transfer digital printing method and weaving and printing combined multiple processing comprehensive approaches. Meanwhile, a set of spring and summer bags and hats were designed, achieved good application effects.
Optimization Design of Stack Package Warpage Based on Moldflow Software
Authors: Zang Ming Xiang , Wang Ting , Liu Chen , Zhao Yong Rui
Published: December 2012

Currently, 3D multi-chip stack assembly is becoming the future development direction of advanced manufacturing process for printed circuit board. However, during the process of Components stacked packages, Warpage control of chips in the reflow soldering is particularly important. By Combining Taguchi method and injection molding simulation software – Moldflow, this paper studied FBGA and PBGA warpage deformation in the POP, setted four design factors, such as the mold temperature, melt temperature, injection pressure and injection time , find out the minimum warpage combination of design and critical design factors affecting the warpage. Then the factors are ranked according to the degree of the impact of the above experiments. The best combination of levels for these factors is getted, the stacked package parameter is optimized. Experiments show that the value of warpage decreased significantly.
Improvements in Manufacturing Processes in a Graphical Analysis as Result of Kaizen Events
Authors: Rieger Benjamin Thomas , Sebastián Miguel
Published: December 2012

Today every production worldwide has to improve their. Based on several concepts and philosophies such as Kaizen and others, it is possible to realize an increase of productivity. Since it is of great interest to know and to evaluate the improvement, a suitable method that allows not only analyzing the improvement of cost but also of time is of interest. Based on the value stream map (VSM) and the profile of cost and time (PCT) the author has developed the PECOTA method, a graphical method of analysis. The concept of investment in time and cost by PECOTA allows first-time analysis and evaluation of a change in a manufacturing process in an easy and fast way. The method includes also the possibility to define the limit of lean manufacturing with the current processes.
A Comparison Study of Small Displacement Torsor and Analysis Line Methods for Functional Tolerance Analysis
Authors: Li Chun Li , Yang Jian Xin , Wang Jun Ying , Ma Wen Xin
Published: December 2012

Tolerance analysis plays an important role in the stage of product design and has great influences on the product assembly quality and manufacturing costs. Two major methods are used for three-dimensional functional tolerance analysis, which are small displacement torsor and analysis line. A positioning mechanism with two parts is presented for tolerance accumulation calculation. Through the comparison of these two methods on computation processes and results, analysis line method can establish the explicit relationship between the functional requirement and the tolerances of the influential part, which allows finding the accumulation results in the worst-case and statistical conditions. However, it requires the determination of transfer relationship case by case. For small displacement torsor model, it permits a set of inequalities to express the tolerance zones, which yields a linear programming problem. It is applicable to different tolerance chains for its general characteristic. However it is adopted only for the worst-case analysis and requires more computation time.
Ontology-Based Knowledge Representation for Mechanical Products
Authors: Li Jia , Yang Yun Bin , Wei Li Fan
Published: December 2012

Knowledge Based Engineering (KBE) helps sharing and reusing knowledge in modern mechanical design field. As a core part of KBE, various methods of knowledge representation were studied. In order to reuse the mechanical design knowledge, the methodology of ontology-based knowledge representation was discussed. First, the concepts, formal description, specialties and languages of ontology were described. Then, three categories of ontology in the field of mechanical design, general ontology, domain ontology and product ontology, were discussed. The product ontology was analyzed by the configuration design method. Finally, an example of ontology-based knowledge representation for mechanical products was studied. The work about ontology-based knowledge representation methodology may support the application of KBE in mechanical design field.
A Parametric Study of the General Profile for Hydrodynamic Journal Bearings
Authors: Pang Xiao Ping , Wei Si Yuan , Niu Kun
Published: December 2012

Study on bearings profiles is one of important factors in the hydrodynamic bearings shape optimization. In order to build a unity shape optimization model, the study on the general profile of hydrodynamic journal bearings was proposed. Firstly, the geometrical theory was studied. Secondly, four kinds of general profiles based on points, Taylor series, Bezier curve and Fourier series were introduced. Thirdly, analyzed and compared with the four kinds of general profiles, the general profile based on Fourier series was proved to be the most suitable to set up the unity shape optimization model. The general profile breaks through the performance limitation of that formed by the inherence characteristics of mathematical model of the known bearing, which not only integrates existing profiles but also develops some other new arbitrary profiles. The shape optimization can be realized by taking coefficients of the general profile as design variables.
Customer Evaluation and Selection Method of Real-Time Innovative Design Based on the Network
Authors: Luo Jian She , Wang Bang Guo , Wang Xiao Li , Cheng Hong
Published: December 2012

In the early stages of the design process, the conceptual design is the stage that can determine the product cost up to 80% on average. In this stage, there are more than one product concept program to choose from. However, to make a concept prototype, and to survey a sufficient number of consumers need, a lot of time and cost need to be spent. In order to solve the above problems, this paper introduces a real-time innovative design of the network-based customer evaluation and selection methods. This method makes full use of the internet and information technology which is able to quickly transport consumer demand to the conceptual scheme at a lower cost and by calculating the extent of consumer preferences on a variety of conceptual design schemes in a short period time allow consume make their decision on a real-time basis during the design phase.
Optimization of Micro Wind Turbine for Dental Fiber Handpiece Based on the Taguchi Method
Authors: Hsien Kuang Hung , Huang Shyh Chour
Published: December 2012

This paper presents the use of the Taguchi method, Computational-Fluid-Dynamics and electromagnetic field analysis to optimize the design of a micro wind turbine for a dental fiber handpiece. An orthogonal array, the signal-to-noise ratio and analysis of variance were used to study the multiple-objectives in the micro wind turbine design. The results showed that: (1) the wire slot fill factor and stator angle have a significant influence on the flow rate, whereas wire slot fill factor and inlet dimensions have a significant effect on the pressure drop; (2) the micro wind turbine reduces electricity usage by 25 watts in a day and produces brightness of 20,000-23,000 lux. The proposed design of the micro wind turbine not only saves energy but also reduces the need for replacement halogen lamp.
Study on the Novel Spinning Technology of Broken Silk Fancy Yarn
Authors: Huang Yan , Zhong Jia Ye , Chen Jia , Yang Li Li , Chen Xian , Yi Hong Lei
Published: December 2012

Broken silk thread is one of the numerous fancy yarns, and has been used in development of yarn-dyed textiles. However, the processing technology of traditional broken silk thread is very complex, and has restricted its wide application in the development of new textile products. Therefore, the aim of this paper is to develop a novel spinning technology of broken silk fancy yarn. Some examples of broken silk thread, which spun silk or cotton yarn is used as core yarn and binding yarn, polyester filament is as used as effect yarn, are spun on the ring fancy yarn twisting machine, and physical properties of these fancy yarns are tested and analyzed. The better technical program about choice of fiber material on the fancy component yarn and technological processes is put forward, and some tips on the operation are also given.
An Investigation on Development of Seat Cooling Fan for Vehicle
Authors: Kim Joo Han , Seo Jung Moo , Jung In Soung
Published: December 2012

There is representative part among convenience items which increase convenience of driver while part that driver contacts most and recognizes easily sensuously among this convenience function drives into vehicles seat part. On high-reliability, high-tech of vehicles, convenience function in seat part is expanded greatly. Air conditioning ventilation system that can keep temperature comfortable environment on deluxe car among them is raised by important convenience function. This paper deals with a design of the seat cooling fan for vehicle, especially brushless DC (BLDC) motor and blade for cooling fan module. We achieved blade flow analysis about high effectiveness and presented various design data. We have used the 2D Finite Element Method for calculating the characteristics of brushless DC (BLDC) motor, computing fluid mechanics (CFD) as numerical analysis for blade design.
A New Cast Stone Roller Kiln and its Combustion Control Approach
Authors: Chen Jing , Luo Ai Jun , Yuan You Xin , Xiao Chun , Wang Wang Lin , Li Zhong Xiang , Li He Cai , Mao Bao Ping , Chen Zhuo
Published: December 2012

The domestic cast stone industrial production is of high energy consumption and low productivity, so a new cast stone roller kiln is firstly developed. A combustion control approach is advanced to accommodate the new roller kiln architecture and meet the combustion control requirements. Continuous proportion and pulse control methods are adopted to the high-speed isothermal burners with internal dense distribution. Two controllers mutually collaborated in pairs to obtain the internal uniform temperature. The implementation of the combustion control scheme is put forward. The application results demonstrated that the new roller kiln and combustion controller could effectively decrease the furnace temperature difference, increase stability of the combustion atmosphere, improve product quality, reduce energy consumption and NOx emissions.
High-Efficiency Solar Power Supply Design
Authors: Yang Hong , Huang Wen Qi , Wang Zhen Fei , Chen Long Guang , Yin Yao
Published: December 2012

In order to improve the efficiency of solar module, we have designed the Fresnel lens concentrated system and charging system, their schematic diagrams are depicted detailed in this paper. The experimental data show that adding Fresnel lens parts can improve the solar panels' power from 130% to 200% and incident angle can affect solar panels' voltage current characteristic deeply. All of these results can give some support to design the tracking system.
Simulation Research about Web Press Paper Tape the Second Time Tension Control Based on MATLAB
Authors: Sun Yu Qiu
Published: December 2012

It is an important factor that the paper tension for web press printing and roll paper manufacture. Especially commerce web press is the more important. The commerce web press has not only the first tension control, but also the second tension control. The second tension control would control tension wave restrict accurate bound. The simulation method was discussed about paper tape tension the second tension control on some problems of high speed Web press controlling system in actual adjustment course, and different respond graph was obtained on the different controlling parameter by MATLAB and controlling system capability target. Intuitionistic and exact foundation was offered for system analysis, comparison and choice arithmetic, which benefits the further research.
Research on Ride Comfort of Nonlinear Vehicle Suspension
Authors: Zhao Zi Yue , Fan Zhi Hong , Zhang Jing Jun , Xia Zi Qiang
Published: December 2012

In this paper, in order to study the effect of nonlinear suspension system, a nonlinear dynamic model considering nonlinearity of suspension is built and another model with the respective of linear suspension system is developed which is for comparison. Then the dynamic equation of the model is set up. The simulation is accomplished through MATLAB/SIMULINK. It is found that the band-limited white noise module can simulate the power spectral density of road surface well. Finally, numerical simulation results indicates that an appropriate nonlinear suspension model fits reality better than a linear one and using relative control can provide the best ride comfort.
Study on Torque Converter with Adjustable Guide Vanes of Hydrodynamic Speed-Adjusting Wind Turbines
Authors: Cai Wei , Ma Wen Xing , Liu Chun Bao , Du Wei Wei
Published: December 2012

As the core component of hydrodynamic variable speed transmission system of wind turbine, there exist some problems in domestic adjustable torque converter, such as simple products and poor performances. A three-dimensional flow simulation method is employed to design the adjustable torque converter. Circulatory circle is determined after the structure optimization of the torque converter. The blades are designed by the conformal projection law, and then the adjustable device’s structure is determined. The performance of torque converter with the variation guide vanes is analyzed by using numerical simulation. The calculated results show that the new torque converter could meet the needs of the wind turbine transmission system.
Research on Exhibition Logistics Information System Designing
Authors: Zhang Shi Xiang
Published: December 2012

Concept and characters of exhibition logistics are introduced in this paper. Exhibition logistics operation process is also analyzed. Differences between traditional logistics and exhibition logistics are pointed out. An exhibition logistics system and its information system are designed with several advantages.
The Intelligent Forecasting Method of Mine Equipment Maintenance Plan
Authors: Huang Wu Xin
Published: December 2012

Aimed at the actuality of the Mine-Concentrator, Dexing Copper-mine, the paper comprehensively apply such technology as the statistics analysis, the forecasting theory, the pattern recognition, the neutral networks and the expert system etc, to study the intelligent method of equipment maintenance management. By utilizing the information of BP network, on the base of learning, the classify system is established. By equipment practical state, scientific and reasonable dynamic decision is established in order to cut down surplus detection and surplus maintenance, which provides technology support for mine equipment’ long-periodic operation.
Application of Improved Genetic Algorithm to Traffic Equipment’s Rush-Repair in the Wartime
Authors: Wu Geng Sheng , Zhang Qi Yi
Published: December 2012

Traffic equipment’s rush-repairs in the wartime optimal assignment model was established. Combining the features of Job-shop scheduling problems, described the complexity of this problem. In order to find global optimal results efficiently, traditional GAs were improved and used for study of this problem. Though genetic algorithm, as an effective global search method, had been used in many problems, it had the disadvantages of slow convergence and poor stability in practical engineering. In order to overcome these problems, an improved genetic algorithm was proposed in terms of creation of the initial population, genetic operators, etc. At the end, the steps to solve the optimal model were put forward. With this model we had obtained ideal results. This shows that the method can offer a scientific and effective support for a decision maker in command automation of the traffic equipment’s rush-repairs in battlefield.
Study on Coal Lean Mining Theory and Practice
Authors: Liu Zhao Xia
Published: December 2012

Through in-depth research and analysis of coal production process, the concept of "lean mining" is puts forward in this paper, and Lean mining system is structured which includes objective, code of practice, technical solution, operation foundation and circumstance basis. Finally the theory is carried out in coal mining practice activities, by which the working efficiency is improved and the profit of enterprises is increased, by which the clean production and lean mining are achieved.
Optimization of Port Supply Chain Super Network under Electronic Commerce
Authors: Xie Hai Yan , Liu Xiao , Zhao De Peng
Published: December 2012

This paper establishes a three-layer port supply chain super network model for multiple decision criteria which consists of M suppliers, N port agents and K customers. The establishment of the model is based on the principles of competition in the same layer and cooperation between different layers. Then, from the perspective of suppliers, port agents and customers, we respectively model the optimizing behavior of the various decision makers by using variational inequalities, and we derive the equilibrium conditions of the entire supply chain by using improved projection algorithm. Finally, we prove the feasibility of the model by experiment.
Design of the Process and Equipment of Melt PEK Filter
Authors: Wu Xue Jing , Qiao Qian
Published: December 2012

During the production of PEK, the dust and foreign matters will be bring into PEK by raw materials and refining process. The impurities enter into extrusion die can make runner block and make products incomplete, and then the application of PEK will be influenced. The following methods can be took to obtain pure PEK, PEK was first added to the extruder to melt, and then through the melt pump to increase the pressure, finally using certain mesh screen to filtrate. According to the request of filtration, a new filter device and process was designed.
Study of Container Transport Planning Model and Algorithm
Authors: Zhang Xin , Lin Jing Song , Zhao Zhiqiang
Published: December 2012

The Container transport has rapidly developed into a modern means of transportation because of their significant advantages. With the development, it also exacerbated the flaws of transport in the original. One of the most important problems was that the invalid transport had not still reduced due to the congenital imbalances of transportation. Container transport exacerbated the invalid transport for the empty containers. To solve the problem, people made many efforts, but they did not make much progress. There had two theoretical flaws by analyzing the previous management methods in container transport. The first one was the default empty containers inevitability. The second one was that they did not overall consider how to solve the problem of empty containers allocation. In order to solve the unreasonable transportation’s problem, and overcome the traditional models’ two shortcomings, the article re-built the container transport planning model—gravity model. It gave the general algorithm and has analyzed the final result of model.
Optimization Design of a Bus Body Frame
Authors: Wang Feng , Wu Yong Hai
Published: December 2012

This paper selects a certain type of Golden Dragon bus body structure as the research object, by using ANSYS parametric modeling, and achieve optimization process through the ISIGHT software integration ANSYS. Choose the body frame minimum total quality as optimal objective; the average stress level is introduced to the objective function when the body frame is under the bending and twisting joint working conditions. According to the bus operating conditions, restrictions including strength, stiffness, and frequency of the body frame are put forward .NSGA-II algorithm is employed to optimize the design. The results showed that: 8.08% total mass reduction of Bus Body Structure. The NSGA-II method combined with finite element method this article uses has a certain reference value on the similar structure optimization design.
Simulation of Crank-Rocker Mechanism on Finite Element by ANSYS
Authors: Zhang Xin Yu
Published: December 2012

This paper has analyzed the movement of the crank-rocker mechanism by a simple finite element model, to study the establishing of the model and the constraints imposed. It has simulated the movement by software ANSYS, and gets the results which is consistent to the theoretical analysis. It accesses kinematical and dynamic characteristics for the mechanism, and provides the necessary foundation to analysis and design of the complex machinery.
Study on the Design Method of Testing Fixture for Bent Tube Based on UG
Authors: Zhao Xiu Jun , Pang Gui Bing , Yuan Chang Feng , Zhou Mao Jun , Li Shu
Published: December 2012

According to the analysis of the bent tube's characteristics and the problems existing in the testing fixture design, the design method of testing fixture for bent tube based on UG are presented. The detail steps of the design and the use method for the testing fixture is described by a designing example. With this method, the designer can achieve new testing fixture just through partly modifying the parameters of the existing designing example owing to UG software possessing the feature of parameterized modeling. The design process of testing fixture design becomes easier, more reliable and efficient.
3D Modeling and Motion Simulation of Single Surface Corrugated Machine Based on SolidWorks
Authors: Yan Ming Xia
Published: December 2012

With SolidWorks software, 3D model of a single surface corrugated machine was developed, and virtual assembly and motion simulation got realized. During virtual design, faults of the single surface corrugated machine can be found out prior to be made, which is helpful to optimize it. And further, it can improve design efficiency greatly and save development cost.
Optimization and Application of STL Model Slicing Algorithm in Rapid Prototyping
Authors: Wang Chun Xiang , Li Zhen Hua
Published: December 2012

The stratification of STL files model is an important link of rapid prototyping systems. In order to improve the efficiency of layered, this paper puts forward a layered optimization algorithm: According to the triangle mesh generation's two axis coordinates, we can group and sort from small to large, then get the line intersection on these triangular mesh, and output section contour line and data in turn. This algorithm can not only save time, but also improve the layered efficiency, because it is not necessary to establish topology relation of the triangle mesh and to deal with the connection relationship of delivery line. Through analysis of the turtle and bucket teeth model stratified, the practicality and high efficiency of the proposed algorithm is verified.
System Dynamic Characteristic Simulation of Spacecraft Propulsion System Based on AMESim
Authors: Yan Zheng , Peng Xiao Hui , Cheng Yu Qiang , Wu Jian Jun
Published: December 2012

In order to investigate the dynamic characteristic of the spacecraft propulsion system, numerical simulation was carried out based on the modular and extensible simulation model UPSSim. The model accurately predicts the global behavior of the spacecraft propulsion system in the priming and shutdown process, and also correctly describes the transient behavior of the subsystems. Due to the distributaries of the attitude control thruster supply pipelines, the propellant flow fluctuation attenuates rapidly in the priming process and the waterhammer peak pressure of main engine supply pipelines decreases significantly. The waterhammer waves of the main supply pipelines propagate to the attitude control thruster supply pipelines and dissipate gradually. The farther from the main engine, the later the pressure fluctuates.
The Common Mode Failure Analysis Based on Markov Model
Authors: Zhao Yue , Jiao Jian
Published: December 2012

Common Mode Failure (CMF) analysis is an important method for evaluating the reliability, safety and risk of complex systems. As the increasing in the system complexity, the common-mode question has become an important factor for conditioning the reliability and security of the control system. Based the discussion on the concepts of CMF, this paper provided a CMF analysis method using Markov model, including the modeling and analysis process. A case study was also presented to verify the feasibility of the analysis method.
Research on Intelligence Inspections of Gear Profile Deviation
Authors: Zhang Hai , Xu Zhou , Fu Wei
Published: December 2012

Gear profile deviation means deviation of actual gear profile compared with normal gear profile which is calculated in the gear end plane erected with gear involutes. And it is a main project for assessing moving tranquility. But tradition measuring machines couldn’t own universality well, and they were prone to being impacted by human beings. The paper shows a new method that DMIS programs for inspecting gear profile deviation can be generated automatically in Pro/CMM software according to CAD model of gear and then coordinate measuring machine will be driven by them to inspect gear profile deviation. The measurement method can achieve high-precision measurement collection points, high efficient measurement process, less manual intervention and low-level error.
Multiple Reference Impact Testing for Bridge Assessment with Drop Hammer
Authors: Liao Yu Juan , Zhou Yun , Qin Peng
Published: December 2012

A new drop hammer was designed and used for multiple reference impact testing of two bridges. The drop hammer utilizes a multiple-rebound control system for successfully applying a single impact with repeatable high-level force for bridge testing. Signal analysis results indicate that the drop hammer provides a higher signal-noise ratio and a better coherence even when the response signals are subject to pollution due to traffic on the bridge. Modal flexibility was computed by using the impact data from the drop hammer, and meaningful deflected shapes could be generated demonstrating the potential of the envisioned structural assessment system.
Large Pendulum Shaft Failure Analysis and Countermeasure Research
Authors: Lin Wei Ming , Zhang Yong , Xiang Hui Yu , Li Zhe
Published: December 2012

With respect to the failure of drive shaft of a large pendulum, a finite element software is used to analyze its stress. The results indicate that the failure is caused by inadequate design of the fatigue strength of the output shaft. Chamfer is the main reason for changing the fatigue strength safety factor, in addition, the drive system may also cause the stress of output shaft too large. At last, specific equipment improvements and shaft failure countermeasures is put forward.
Thermal Design and Simulation for Lithium-Ion Power Battery Pack Assembly
Authors: He Zhan Jun , Hu Xin Ju , Di Si Zhong , Song Bing Bing , Yang Chang Fu
Published: December 2012

At present, the power of electric vehicle mainly relies on li-ion battery module. The temperature field of lithium-ion power battery pack assembly is an important factor which affects the security and reliability of EV when the vehicle is running [1,2]. In this paper, by simulating the typical discharge condition of Li-ion battery module, it is realized that the detailed temperature field and air flow field of battery pack assembly. According to the results of thermal analysis, li-ion battery module layout can be improved, and the high-temperature region of battery pack assembly can be found clearly
Research on Parameter Distribution of Interval Deleted Data with Turnbull Estimation
Authors: Wu Jin Huang , Wang Jun Sheng , Liu Hai Bo , Lei Jun Wei
Published: December 2012

A kind of selection method of parameter distribution is proposed to solve the distributive parameter selection problem of packet data by using common Turnbull estimated curve as a standard curve. This method can meet the requirements of data distributive selection for data analysis such as reliability assessment, and it can guide the engineering and technical researchers to choose a reasonable fitting of the data distribution, and to improve the accuracy and efficiency of reliability assessment
Fault Location for Transmission Line with Shunt Reactors
Authors: Liu Xin Dong , Guo Rong , Zeng Rui Ming
Published: December 2012

Taking the influence caused by shunt reactors into account, proposes a new fault location algorithm. Based on distributed modal, the algorithm constructs frequency spectrum equations of the faulty network with line parameters to identify, extracts fundamental wave and harmonics of transient signal to solve equations to obtain fault position and exact parameters.
The Fatigue Life Research on the Crossbeam of Automatic Hydraulic Tile Press
Authors: Pan Yuan
Published: December 2012

Taken a certain type of crossbeam of automatic hydraulic tile press as research object, discussed its comprehensive fatigue life by using damnification-limit design method and Finite element. It provided some theory basis and reference for automatic hydraulic tile press’s safe operation and fatigue lift design.
Safety Analysis and Design of Wireless Monitoring System
Authors: Qian Bin , Zhang Hong Ying
Published: December 2012

In recent years, China's coal industry, a gas explosion frequently on people's lives and property caused a great threat, in order to reduce this from happening, our large, medium and small coal mines with high gas or gas outburst after another mine monitoring and control system in the equipment, particularly equipment wireless monitoring system has greatly enhanced the level of mine safety and production safety management efficiency. In this paper, computer technology allows for wireless monitoring system for a more detailed analysis of the description.
Research on Storage Life of Electronic Equipment Based on Goodness of Fit Test Method
Authors: Wang Jun Sheng , Wu Jin Huang , Wang Yi Dong , Lei Jun Wei
Published: December 2012

The test of distribution is to infer that whether the life of produce can satisfy the distribution chosen by a simple analysis of the test data or the alive using data . Based on the principle of fit goodness test and the Pearson test method , which is one of a common distribution test methods, a kind of special F test method is researched for the situation that the product life obeys to exponential distribution. With that method, the distribution of the storage life of electronic devices is researched.
Classification of Floral Origins of Honey by NIR and Chemometrics
Authors: Liang Xiu Ying , Li Xiao Yu , Wu Wen Jun
Published: December 2012

Near-infrared (NIR) spectroscopy combined with chemometrics methods has been investigated to discriminate type of honey. 147 NIR spectra of six floral origins of honey samples were collected within 4000~10000cm-1 spectral region. Spectral data were compressed using partial least squares (PLS). Back propagation neural networks (BPNN) models were constructed to distinguish the type of honey. Six spectral data pretreatments including first derivative, first derivatives followed by mean centering(MC), second derivatives, Savitzky-Golay smoothing, standard normal variate transformation (SNV) and multiplicative scattering correction (MSC) were compared to establish the optimal models for honey discrimination. Savitzky-Golay smoothing proved more effective than the other data pretreatments. BPNN models were developed within the full spectral region, 5303～6591cm-1 and 7012～10001cm-1, respectively. Results have shown that the highest(100%) classification rate was achieved within 5303～6591cm-1 wave range. Our results indicated that NIR spectroscopy with chemometrics techniques can be applied to classify rapidly honeys of different floral origin.
Feature Extraction of Leaf Images for Mite Disease in Cotton Fields
Authors: Diao Zhi Hua , Song Yin Mao , Wang Yun Peng , Wang Huan
Published: December 2012

To realize timely and reliable diagnosis of the cotton mite disease, the leaves image features of mite disease were extracted by using computer image processing technology. First the average value and variance of the hue H and G/R as the color features were extracted by the histogram. Secondly, the entropy and inertia value were extracted by the algorithm of co- matrix. Then, according to the binary images of leaves for mite disease, two morphological features of leaf lesion, such as circularity and elongation were extracted. Experiments results indicated that the characteristic values could distinguish the cotton mite disease leaves and normal leaves better. The method which was applied to diagnose the cotton mite disease would improve the accuracy of disease identification and achieve effective governance of cotton mite disease.
Research on Non-Invasive Measurement of Optical Parameters of the Tissues by Support Vector Machine
Authors: Li Yang , Xu Jia Jia , Liu Hong Peng
Published: December 2012

To measure optical parameters of biological tissues, support vector machine was adopted. The diffuse reflected light on the surface of the biological tissue corresponding to optical characteristic parameters of human tissue were obtained by Monte Carlo simulation. The nonlinear relationship model had been established between the diffuse reflected light and the optical parameters. The optical parameters were obtained by the support vector machine and the diffuse reflected light. That were compared with the given values of the same sample, and they were coherent basically. It was shown that support vector machine used to measure optical parameters had a high accuracy.
Granary Temperature and Humidity Detection System Based on MCU
Authors: Jin Lin , Zhao Tong
Published: December 2012

The granary temperature and humidity detection system, it is used AT89C51 as the main control core, and used the RS232 bus communication to realize the granary temperature and humidity control. The host microcontroller is depended on the AT89C51 to drive, and to display temperature, humidity and brightness, at the same time through the keyboard to enter the master information. The attached master machine used STC12C2052AD as the control unit, the Digital Temperature and humidity data acquisition used sensor SHT11, in each of the master machine and attached machine use of serial communication. When the temperature and humidity exceed the set values, it will alarm.
Flow Rate Measurement Method and Apparatus of Thick Pastes
Authors: Zhang Shuang Yu , Wang Zhi Nan , Hao Xue Di , Wu Miao
Published: December 2012

Research on the rheological characteristics and delivery resistance needs precise flow rate in pipes of thick pastes which is the basis of delivery capacity calculation and equipment selection for a pipeline system. However, the existing apparatuses are not suitable for flow rate measurement of the thick pastes, so it is necessary to design a kind of apparatus applicable to the above requirements. This paper by using an electromagnetic induction coil as a sensor, designs a kind of flow rate measurement apparatus of thick pastes. It describes the measurement method and its principle, and analyzes the error of this apparatus. A loop-pipe transportation test of coal slime was conducted, and it shows the relative test experimental error of this apparatus is less than 1%.
Virtual Shaping Design of Electrically Driven Hunting Cart
Authors: Du Qiu Lei , Jiang Xiao Wei , Cheng Zi Xuan
Published: December 2012

This paper mainly presents those aspects about electrically driven hunting cart design as follows: the main structure design including the designs of the cart frame, the hanger bracket and the axle; the overall modeling design including the designs of the shaping and the color; the virtual design including the major methods and steps of it and the content of electrically drive hunting cart design as well.
Study Progress of Li-Ni-Co-Mn-O System as Cathode Material for Li-Ion Battery
Authors: Zhou Luo Zeng , Xu Qun Jie , Yang Xuexuan , Liu Ming Shuang , Jin Xue
Published: December 2012

Li-ion batteries have been widely used to power portable electronic equipments, and have been considered as an alternative source of power for electric or hybrid vehicles. Cathode is a key part of Li-ion battery and determines the battery performance. In this paper, we briefly introduced an important and promising Li-Ni-Co-Mn-O cathode with high capacity and working voltage. The development status, modification methods, and existent issues of Li-Ni-Co-Mn-O cathode were also introduced. And in the end, we propose a possible solution to the issues blocking in application processes.
The Study on the Properties of Zinc-Nickel Battery
Authors: Lin Song Zhu , Zhou Xiao Qing , Jia Ruo Kun
Published: December 2012

A novel method was showed to the preparation of zinc electrodes with step heat. The process is not only simple for the preparation of electrodes, but also better for the performance. Zinc nitrate and calcium nitrate were selected as raw materials for preparing calcium zincate electrodes. Preparation of zinc electrodes under different conditions were studied and compared. The results shows that the performance of a battery which is composed of electrodes with step heat can meet the requirements for high power zinc-nickel batteries.
Electric Vehicle Charging Battery Swap Station Harmonic Generation and Hazard Control
Authors: Jin Jie , Niu Rong Yi , Gong Dong Liang , Jin Yan
Published: December 2012

Analysis of harmonic generation and hazards of electric vehicle charging/ battery swap station, suitable harmonic control method was proposed. Introduced new low-harmonic charger applications, the calculation of the harmonic content, the harmonic treatment data analysis.
A Compensation Method of Dynamic Voltage Sag Based on SMES
Authors: Mao Zhen Peng , Bao Guang Qing
Published: December 2012

In order to reduce the DVR manufacturing cost, we had better expand the range of the DVR compensation as far as possible in a certain energy storage capacity under the restricted condition of maximum output compensation voltage of the device. This paper adopted a fast- detection method in which the single-phase voltage is delayed 60ºso as to structure the virtual three-phase voltage, and ensured the minimum energy output of DVR based on the phasor diagram of the pre-sag load voltage. The characteristics of the fast response and the high conversion of the super conductor magnetic energy storage (SMES) are made full use of. Finally, through simulating MATLAB, this compensation method is proved to be capable of effectively reducing the active power output of DVR, fast compensating the voltage sag, as well as enlarging the compensation scope of DVR.
Energy-Saving Application of Heat Pipe GGH in Wet Flue Gas Desulfurization System
Authors: Liang Hui Min , Zhang Jie , Cai Yuan Yuan
Published: December 2012

In order to heat the gas of Boiler tail to comply with request of emission temperature of environmental regulations, heat pipe gas to gas heater (GGH) is used in the wet flue gas desulfurization (FGD) system. Heat pipe GGH is characterized by high efficiency, small losses of fluid resistance, and no leak of the flue gas, and desulfurization system possesses higher desulfurization efficiency, no additional power consumption, low costs of operation and maintenance, and it also solves the problem of acid corrosion and scaling, which is more suitable for wet flue gas desulfurization system.
Structural Optimization Design for Metal Honeycomb Used in Continuous Waste Heat Recovery
Authors: Ren Ling , Hu Yu , Xia De Hong
Published: December 2012

Metal honeycomb is a kind of new plug-in unit for enhancing heat transfer, which is easy to adjust its specific surface area, excellent in heat conduction and flexible in geometrical transformation. The structures of honeycomb are optimized by FLUENT and orthogonal experiments. It is concluded that the heat exchange capability of honeycomb is most affected by the relative size representing screw pitch or screw diameter to metal wire diameter, less by the diameter of metal wire, and least by extensional rate under continuous heat recovery process. Moreover, it is found that the honeycomb has the best performance in heat transfer with metal wire diameter of 1.0 mm, relative size 8(corresponding to screw pitch and screw diameter 8.0mm) and extensional rate 0.7.