bluuebunny/crossref_metadata_2025 huggingface dataset:
The Construction of Intelligent Supply Chain
Authors: Lv Guang Ren , Yu Qiang
Published: May 2013

Some people said the 21st century enterprise competition is the competition between industries, so force of the modern enterprise operation and management in upstream and downstream toward the industry chain to extend and expand, so also grows the hot topic in the supply chain management. Early supply chain management is a tandem management mode and method, pays great attention to the enterprise information flow, logistics and cash flow between the track and manage, however, with the modern network communication technology transformation and the artificial intelligence technology of application, make upstream and downstream firms in the supply chain won the equal access to information, ability, information becomes more transparent, become a kind of resources and even became a service, in order to better satisfy the supply chain and the corresponding different users for information needs, must use more intelligent management means of supply chain. This paper, starting from the concept, intelligent supply chain of the supply chain implementation, content networking technologies application and future prospects from several aspects such as how to explore new generation network technology with implementation and impose the supply chain.
The Important Role of Green Supply Chain Management in the Context of Land-Sea Overall Strategy
Authors: Kang Min Jie , Luan Wei Xin
Published: May 2013

This paper explores the mechanism between supply chain and marine environment, describes the concepts and elements of GSCM, and discusses the prospects of implementation of GSCM, conclude that GSCM would be a good practice for Chinese enterprises to improve both their economic and environmental performance, it would play an important role in marine environment management, prospectively it would be a possible way to solve the Bohai sea environmental problem in the context of land-sea overall strategy.
Performance Evaluation and Research on Automobile Manufacturing Enterprise Based on Analytic Hierarchy Process
Authors: Wu Fan
Published: May 2013

The status of auto industry is enhancing in our national economy with the economic boom of China and rapid growth of economic globalization. Meanwhile, automobile manufacturing industry also has to faced with the increasingly fierce global competition. Based on this opportunities and challenges coexist situation, comprehensive evaluation of automobile manufacturing enterprises’ performance has more and more realistic significance. This paper utilized the analytic hierarchy process to evaluate the performance of automobile manufacturing enterprises. In this assessment system, we considered the financial indicators and non-financial indicators which related to the performance of automobile manufacturing enterprises. Based on the systematically analysis, we summarized the influence degree of each evaluation index and provided the basis for automobile manufacturing enterprises to make scientific decisions.
Study of the Advance Payment Financing Model Based on E-Commerce Platform
Authors: Cheng Gou Ping , Tu Jian Ping
Published: May 2013

Electronic information network technology is growing faster with the rapid development of information technology, the advance payment financing model based on e-commerce platform becoming mature step by step. We proceeded a discussion about the mechanism of the advance payment financing model based on e-commerce platform. Then we analysed the principal parts which participate in this financing procedure, and made the traditional advance payment compared with this new financing model. At last we concluded that advance payment financing model based on e-commerce platform can not only reduce the risk of relevant parties, but also can increase the financing efficiency.
B2C E-Commerce Enterprises Decision Making on Logistic Suppliers
Authors: Chen Jia Juan , Feng Qian , Cai Xiao Qi
Published: May 2013

Nowadays, enterprises adopt outsourcing to conduct their logistic distribution. In order to choose the appropriate logistic provider, a detailed, in-depth logistic plan should be designed. This paper adopt BSC theory and GAHP-grey correlation method, based on the condition mentioned above, put forward a method of choosing logistic provider forB2C e-commerce enterprise. Finally, a case shows that this method is feasible.
Digital Products Pricing in Network Expansion - Based on Network Economic Theory
Authors: Zhang Qing Yuan , Zhang Fu Jin
Published: May 2013

One of the characteristics of the network economy is the emergence of digital products. Digital products, the core of the network products, the pricing issue has drawn increasing attention. Precisely because of the network externalities demand-side economies of scale, positive feedback and increasing marginal returns and other features of the network economy, as well as the characteristics of high initial investment costs and low marginal costs of the digital products, digital products cannot be simply priced by traditional economic pricing method. Monopolist does not like the traditional monopolist which limits production and raises prices to earn high profits. Of course, the manufacturers will not simply rely on the demand and supply in accordance with the marginal revenue and marginal cost pricing. Therefore, based on the characteristics of the digital products itself, cost of production, network market environment and the characteristics of the analysis of the consumers’ behaviors, proceeding from the point of view of the network expansion, then the theory of groups pricing based pricing strategy is put forward.
An Experiment Investigation to the Radial Tire Noise
Authors: Tong Guang , Wang Qiang , Yang Kun , Wang Xian Chuan
Published: May 2013

Tire noise is an effective noise source of vehicles. The mechanism of tire noise is very complex. Moreover, the external factors can affect tire noise. Then, it is very difficult to estimate the tire noise with mathematic models and computational methods. Therefore, the test experiment using anechoic and semi-anechoic chamber is important to study the characteristics of the tire noise. In this paper, the factors affecting the noise of radial tire are analyzed; the noise characteristics of the radial tire are obtained by experiments. From the experiment results, it can be seen that tire wear is the main factor of tire noise.
Study on the Functional Zones Layout of Fresh Food Distribution Center Based on the SLP Method
Authors: Wu Chun , Hu Tian Jun , Wang Xi Fu , Zheng Chao
Published: May 2013

SLP method is one kind of rational layout methods with strongly logicality and it stresses that logistics analysis is closely combined with the relationship of functional zones. Through repeated modifications and adjustments in the process of applying the method, the result has a strong practicality.Combining with the particularity of fresh products logistics, this paper improved the traditional SLP method including basic logistics elements analysis and calculating the area,and proved the new method through a case.
A Fuzzy DEA/AR Method for Manufacturing Mode Selection
Authors: Wang Yu Fang , Yan Hong Sen
Published: May 2013

In order to guarantee manufacturing enterprise to choose the most effective manufacturing mode it’s essential to evaluate relative effectiveness of manufacturing mode of manufacturing system. A fuzzy data envelopment analysis/assurance region evaluation method is proposed. Assurance region prevents input and output parameters from being ignored or interdependent in excess during the process of evaluating manufacturing modes. Triangular fuzzy number is adopted to represent uncertain input and output parameters of complex manufacturing system. By introducing cuts to calculate upper and lower bound of fuzzy effectiveness of manufacturing mode. Ranking method based on fuzzy effectiveness bound is provided to determine the manufacturing mode with the optimal relative performance. An example demonstrates the validity of proposed method.
Technology Spillover and Enterprise Innovation Cooperation in Complementary Products of Different Industrie
Authors: Lu Xi , Liu Yong Xian , Pang Hong Mei
Published: May 2013

R&D activities have become the embodiment of an enterprise's core competitiveness. Based on the classic AJ model, this paper constructs the expected profit model in the non-cooperation, cooperation and social welfare maximizing conditions, and analyses the behavior effects to R&D and production behavior in the heterogeneous complementary enterprises. Through comparing Nash equilibrium R&D investment and production output, we conclude that R&D behavior plays a positive role on the cooperation between the heterogeneous complementary enterprises.
Higher Education Sustainable Development in Sichuan Province: Problems and Solutions
Authors: Hu Jie , Huang Qiong
Published: May 2013

There is an increasing concern about higher education sustainable development in the context of social progress requiring higher educational talents. This Paper presents the background and current situations of higher education development in Sichuan province. On that base, some problems which affect higher education development are given out. To achieve higher education sustainable development in Sichuan province, this study presents some policy suggestion.
Exploring Non-Traditional Machining Training
Authors: Liu Jian Wei , Wei De Qiang , Lv Ru Jin
Published: May 2013

As a new-emerging force of modern manufacturing technology, non-traditional machining plays an important role in cultivating engineering quality, raising innovation ability and innovative consciousness to students. In order to adapt the development of practice teaching of engineering training in higher education, an innovative training mode is explored and implemented to non-traditional machining combined with the actual situation of the Mechanical and Electrical Engineering Training Center of Guilin University of Electronic Technology. The results show that the exploration is feasible completely.
Comparative Test Analysis for Determining Dynamic Deflection by Using GNSS/RTK, Trigonometric Leveling and Elevation of Sight
Authors: Liao Zhong Ping , Wang Zheng Jun , Zhao Wen Yu
Published: May 2013

Respectively applied Trimble R8 GNSS/RTK, Leica TCA2003 3D coordinates measurement and SPRINTER 200M elevation of sight to synchronously monitor the deflection displacement of an underdamped oscillation, it has a 0.5 Hz design frequency and mm level amplitude in this test. Based on the FFT algorithm, spectral information was independently calculated out from these observed data of deflection displacement. Combined the spectrogram with the deflection displacement of R8, TCA2003 and SPRINTER 200M monitoring points, this paper makes a comparative analysis. The results show that the TCA2003 automatic tracking measurement can not only accurately measure the dynamic changes in the process of the damped oscillation dynamic deflection but truly reflect the structure of the dynamic deformation characteristics; the SPRINTER 200M digital leveling can monitor the overall trend of dynamic deflection, but get a harmonic frequency; and GNSS/RTK only acquires a harmonic.
Gearcase’s Modal Analysis
Authors: Cai Yun Peng , Li Ji , Ji Ming Hui , Lin Xiang Hua
Published: May 2013

Using PROE software build the model of gearcase, and guide into ansys software for modal analysis in free state. It can get inherent frequency, here only take the ten order frequency, then calculate the pressure that lid applied, add to the role of theshell surface, using ansys for modal analysis to calculate the inherent frequency. When gearcase in the working, bearing and frame will constrain it. Considering this, on this condition, continue analyse the inherent frequency of gearcase, work out the results. Finally, compare these and analyse results, we can know that external conditions have a great influence on gearcase’s inherent frequency
Finite Element Modal Analysis of Large-Scale Composite Wind Turbine Blade
Authors: Zheng Yu Qiao , Zhao Rong Zhen , Liu Hong
Published: May 2013

This paper presents a dynamic response analysis of the blade of horizontal axis wind turbines using finite element method. The blade is treated as a thin-walled beam based on the classical lamination theory, and accounts for arbitrary material layup and non-linear anisotropic fibre-reinforced composites. Applying the proposed method,A 29 m rotor blade, previously reported in specialized literature, was chosen as a case study the dynamic behaviour built in a FEM software tool. It is developed to predict natural frequencies and corresponding vibration modes in rotating blade in-plane and out-of-plane. Numerical results are serve as a design tool for the large composite wind turbine blade structure required during design and optimization.
Experimental Study on the Eligibility Percentage of Fuel WTD Valve Flow Test of X Engine
Authors: Xu Yong Gang , Wang Qiang
Published: May 2013

Experimental study was made to raise the eligibility percentage of the fuel WTD valve flow test of X engine, thus advancing the reliability of fuel distribution of the WTD valve. The spring--valve housing matching test of this paper demonstrates that the eligibility percentage is dependent not only on the spring height, but also intimately on the geometrical regularity of gain slots and return holes. The height-variable spring--valve housing matching test of this paper testifies that the eligibility percentage of spring matching vs. height has the characteristic of normal distribution, with the pre-calculated height at the normal peak. Therefore, the spring design calculation method referenced in this paper is practicable and reliable. The valve flow test shows it is improper to decide whether a spring can be used or not just on one spring--one valve housing basis. A suitable way is to match one spring to at least two to three valve housings in order to raise productivity and application of reliable springs.
Numerical Simulation for Transient Flow of Field of Water Jet Based on Euler Method
Authors: Dong Fei , Xing Shou Chen , Guo Chen Hai
Published: May 2013

It is hard to accurately predict the shape and the characteristic of jet because of the dynamic characteristic of water jet in the atmosphere. The Eulerian model was used to calculate the water jet numerical simulation of two-phase flow. The distribution of the velocity, pressure and the component of the nozzle flow field were obtained under the condition of the initial pressure of nozzle is 100 MPa and the outlet diameter of nozzle is 0.2 mm. The results show that fluid velocity increases rapidly in the nozzle contraction section and appears the isokinetic core area after leaving the nozzle; the fluid dynamic pressure rapid rises in the nozzle contraction section and keeps invariant at the isokinetic core area; the ratio of the contraction flow radius and the nozzle radius is 7:10.
The Performance Simulation of One-Way Inlet Valve of Reflux Scavenging Free Piston Engine
Authors: Li Zhen Xin , Yuan Zhao Cheng , Ma Jia Yi , Li Shi Yu
Published: May 2013

The performance of one-way inlet valve directly impacts the effect of the reflux scavenging two-stroke engine intake. It’s discovered that the intake air flow rate, the weight of valve and the spring constant have the greatest impact on the opening, closing and the lift change of one-way inlet valve, by simulating the movement of piston and valve using CFD software. The greater the flow rate, the smaller the weight of valve, or the smaller the spring constant, then the faster the opening of valve. Meanwhile, in order to ensure that the valve quickly returns, the bigger of spring constant is the better. The phases of opening and closing of valve lag fall behind the phases of piston getting to bottom dead center (BDC) and top dead center (TDC).
Numerical Simulation of Combined Mixing and Separating Flow in Cannel Filled with Porous Media
Authors: Khokhar R. B. , Chen Y. K. , Xu Y , Calay R. K.
Published: May 2013

Various flow bifurcations are investigated for two dimensional combined mixing and separating geometry. These consist of two reversed channel flows interacting through a gap in the common separating wall filled with porous media of Newtonian fluids and other with unidirectional fluid flows. The Steady solutions are obtained through an unsteady finite element approach that employs a Taylor-Galerkin/pressure-correction scheme. The influence of increasing inertia on flow rates are all studied. Close agreement is attained with numerical data in the porous channels for Newtonian fluids. Keywords: mixing-separating geometry, flow bifurcation, porous media, finite element method, Newtonian fluid.
Research on Design of High-Efficiency Fire Turbopump Supplying Water from Low-Level Water Resources
Authors: Wang Li Jing , Yuan Ye , Xue Lin
Published: May 2013

According to requirements of fire service, turbopump is used to supply water from low-level water resources. The efficiency of agricultural irrigation turbopump is too low to provide sufficient water to fire control, so a fire turbopump is designed in this paper. It is common to design a turbopump by empirical methods, but this causes turbopump not to operate at best efficiency point. Therefore, three design concepts of new turbopump model, existing hydraulic match model and turbopump conversion model are discussed. Their theories and application conditions are also listed. After design of fire turbopump by new turbopump model, numerical simulation is conducted to analyze the pressure field to predict operating status. The open rig experiment is also presented to confirm its performance characteristics. The pump head and flow rate of the designed turbopump meets the requirements of fire ground and it is proved that the efficiency of fire turbopump is much higher than irrigation turbopump, which indicates the new turbopump model is an effective strategy to design turbopump.
The Hydrodynamic Analysis of Propeller Based on ANSYS-CFX
Authors: Wang Da Zheng , Wang Dan , Mei Lei , Shi Wei Chao
Published: May 2013

In this paper, the open water performance of a pod propeller in the viscous flow fields is numerically simulated by the Computational Fluid Dynamics (CFD) method. Based on the coordinate transformation formula for transforming the local to the global coordinate, mathematical model of a propeller is created. Thrust and torque coefficients corresponding to different advance coefficients of the model are calculated by ANSYS-CFX with three different turbulence models. The pressure distributions on the blade surface are also presented. Comparisons show that experimental results and numerical results agree well, with SST k-ω and RNG k-ε more accurate than the standard k-ε.
Dynamic Characteristics Investigation on Hydraulic System of Array Nail Machine Based on Simulink
Authors: Qi Xi Juan , Qin Zhi Ying , Zhao Yue Jing
Published: May 2013

The power bond graph of hydraulic array nail machine was built on the basis of analyses on its hydraulic system and actual working cases. Dynamic model of array nail machine hydraulic system was built. At the same time, making use of Simulink, dynamic simulation of hydraulic system of array nail machine was carried out. Influence law of primary technology parameters on dynamic characteristics of the hydraulic system was expounded. The simulation results will provide theory bases for performance analysis and optimal design of array nail machine hydraulic system.
Evaporation-Air-Cooled Heat Exchanger Heat Pipe Research
Authors: Zhao Xiu Ting
Published: May 2013

The evaporation-air-cooled (methanol) heat exchanger the actual condition, in the same conditions, five different heat exchanger tube simulated temperatures and stress field. The results show the elliptical tube and corrugated tube heat exchangers are best, built-spring pipe is better. Elliptical tube's stress is the maximum, corrugated pipe has stress concentration. Application enhanced heat transfer technology, a relatively compact structure can be used to transfer the required heat, using enhanced tubes instead of smooth tube is an effective method.Considering the safety, cost, and heat transfer efficiency and other factors, the final evaporation-air-cooled (methanol) built-spring heat exchange tube is more reasonable choice.
Experimental Study on Adsorption Water Tube from Atmosphere Using Solar Energy
Authors: Liang Hai Bin , Zhao Hui Zhong
Published: May 2013

The solar adsorption water tube was put forward in this research paper, which producing water from atmosphere with solar energy. When the ambient temperature range is 30.7°C-41.6 °C and the solar transient radiation range is 284 W/m2-1007 W/m2, a solar adsorption water tube could produce 78ml water after adsorbed 10m3 air. The highest temperature of the adsorption bed can reach to 200°Cin the process of desorption.
Influence of the Structure and Material Parameters on the Temperature Field in a Vacuum Near-Infrared Hot-Pressing Furnace
Authors: Shi Tian Yi , Shen Lian Guan , Li Mu Jun , Zhou Jian , Hu Yang , Ji Yue Liang
Published: May 2013

With its rapid temperature response and high thermal efficiency, near-Infrared (NIR) heating technology is widely used in modern industry, especially in heating furnace. In order to investigate influence of structure and material properties on the heating performance of a vacuum NIR hot-pressing furnace, a series of numerical simulations are utilized. On a variety of factors of power, insulating materials, shielding layers, an optimal proposal is revealed. As a result, the central temperature of the furnace can be up to over 600°C within 20 minutes and the temperature on the outside wall of furnace can be kept to a safe degree for operator, with only one shielding layer of Mo and a silica aerogel layer of 20mm thickness, a kind of excellent heat insulating material.
Multi-Objective Optimization Methods of Plate Solid Oxide Fuel Cell's Temperature System
Authors: Liu Xin , Hao Xiao Hong , Yang Xin Hua , An Ai Min , Zhang Hao Chen
Published: May 2013

The working environment of Solid Oxide Fuel Cells (SOFC) includes high temperature and speedy chemical reaction. The improved control structure and optimization method for the simplified temperature system of SOFC are proposed in this paper. It designs a real-time cascade PID controller for dynamic reactive temperatures of SOFC which vary significantly as the external disturbance or operating mode changes. Considering the efficiency of fuel utility and output power are incommensurable multiple goals, some fuzzy-based rules are introduced to solve these complex multi-objective optimization problems. The experiments’ result shows that the controllers have good robustness and quickness when the system is under the mode with external disturbances.
Design of Brake Pedal Stroke Simulator for Hybrid Electric Car
Authors: Wang Cong , Liu Hong Wei , Yao Liang , Wang Yan Bo , Chu Liang , Zhang Yong Sheng
Published: May 2013

A brake pedal stroke simulator is a key component of realizing a Regenerative Braking System. It provides a good pedal feeling to a driver, improves energy recovery and ensures braking security. This paper presents the hardware solution of the braking control system, the structure and key design parameters of a brake pedal stroke simulator. Through simulation, the energy recover rate and brake pedal feeling of drivers can be improved. The simulator can be used to realize the regenerative braking system in hybrid or electric vehicles.
Temperature Field Research of Intelligent Van Tobacco Baking Room
Authors: Wei Jian Yu , Zhang Da Bin , Luo Jian Qin , Wu Feng , Zhang Ji Li , Hu Xiang Dan , Wang Feng
Published: May 2013

This paper carries on research for the temperature field distribution of the intelligent van tobacco baking room,first analyzes the temperature field model in the baking room on the basis of the principle of heat transfer, then makes the simulation computation with the analog software to obtain the temperature field distribution,after that,makes use of field baking experiment with the existing laboratory equipments to measure the temperature change curve in key points in baking room during baking process, and further analyzes the distribution trend of temperature field. The experiment result shows that the analog computation of temperature field distribution is in line with real situation,which can provide theoretical basis for the improvement of structure and technology of baking room .
Numerical Simulation of Heat Flow in a Vehicle Cabin Using the Personal Air Conditioning System
Authors: Zeng Yang , Katsuta Masafumi , Anamizu Tomohiro
Published: May 2013

The personal air conditioning system is used in the battery electric vehicle instead of the traditional one and the experiment validated that this system can make passengers feel comfort after four minutes. All the system can only consume electric power 338.8 W, which is less than the traditional air conditioning of cabin. A simplified 3-D N box vehicle cabin model was created to simulate the thermal distribution under this system by using the CFD analysis and the results of calculation have good agreement with the experiment recording.
Optimization of the Cold-End System of the 1000MW Ultra-Supercritical Units by VB
Authors: Zheng Li Kun , Chen Chang , Xie Dan Mei , Zhang Heng Liang
Published: May 2013

The cold-end system of steam turbine is an important auxiliary system in thermal power plant, its operating mode has a direct impact on the output of the unit and auxiliary power. This paper uses an optimization analysis method to calculate the cold-end system of a 1000MW ultra-supercritical(USC) unit, and establishes a cold-end optimization system by using VB6.0 for a domestic ultra-supercritical unit, which provides an online guide for the operator by calculating the condenser. The results show that this system can provide some guidance for unit operation.
Analysis on De-Icing Methods for 4-Bundle 500kV Transmission Lines
Authors: Liu Shun Xin , Guo You Han
Published: May 2013

In view of the massive transmission lines suffered disaster of ice coating at the beginning of 2008 in south China. In this paper, several typical schemes for the prevention and treatment of ice coating occurred in power networks home and abroad are analyzed. Common melting ice methods can be divided into three kinds: thermal ice-melting, mechanical de-icing and new de-icing. This paper describes a 500 kV transmission line and analyses each of these measures briefly. At the same time, the advantages and disadvantages of various measures and their applications were summarized. At last, the development trend and the research direction were pointed out．
Simulation and Experimental Studies on Magnetic Valve Controlled Reactor
Authors: Liu Gang , Li Guang You , Li Wei
Published: May 2013

Some simulation and experimental researches on magnetic-valve controlled reactor (MCR) have been done in this paper. Firstly, the equivalent circuit of MCR is derived according to the operational principle. Secondly, based on MATLAB/Simulink, the simulation model is established, in addition, the simulation researches are carried out. Thirdly, a MCR, with rated voltage 220V and rated capacity 600VA, is designed and tested. Comparing the experimental results with simulation results prove the validity of simulation model.
Optimization of Distribution Network Voltage Deviation Control Measures Based on LCC Theory
Authors: Fan Yun Tan , Liu Kai Pei , Chen Xiao Qiang , Tong Xiao Ning , Le Jian
Published: May 2013

This paper presents an optimization method for distribution network voltage deviation control measures based on life cycle cost (LCC) theory. The overall process of this method had been introduced, and the LCC decomposition model of distribution network reconstruction had been analyzed in details. The existing statistical data were used to build the LCC cost models for changing the cross section of the conductor, reactive power compensation and adjusting the transformer tap. Finally, a 10kV feeder was taken as an example to illustrate the application of the proposed method, it included the voltage deviation estimation, voltage improvement plan development and plan optimization based on LCC theory. The method proposed in this paper can be used to improve scientificalness and economical efficiency in planning distribution network voltage deviation control measures by power supply department.
UPFC Device Application on Power System Oscillations to Improve the Damping Performance
Authors: Hussain Ali Nasser , Malek F. , Rashid Mohd. Abdur , Mohamed Latifah , Daut Ismail
Published: May 2013

UPFC is considered as an important modern device in the flexible ac transmission systems family that provides the controllability and flexibility for transmission lines. It is also capable of enhancing the stability of the power system by the addition of a supplementary damping controller, which can be installed on any control channel of the UPFC inputs to implement the task of power oscillation damping controller. This paper presents the application of UPFC to enhance damping of low frequency oscillations by the simultaneous coordinated design between power system stabilizer and different UPFC supplementary damping controller in order to identify the design that provided the most robust damping performance in a single machine infinite bus. The parameters of the damping controller were tuned in the individual and coordinated design by using a chaotic particle swarm optimization algorithm that optimized the given eigenvalue-based objective function. The results analysis reveals that the proposed coordinated designs have high ability in damping Low-frequency oscillations and improve the system damping over their individual control responses. In addition, the coordinated design PSS & δE provides superior performance in comparison to the all coordinated designs.
Wind and Solar Micro-Grid Including Energy Storare System
Authors: Lv Li Xia , Jin Yue Xia
Published: May 2013

In order to solve the problems which are caused by wind power and solar power on-grid, such as power quality, stability, reliability and so on, this paper proposes wind and solar micro-grid including energy storage system(ESS). The micro-grid uses two buses: AC bus and DC bus. Micro-source current is connected to the grid with the same inverter, which can reduce the micro-grid control difficulties. The energy storage system connected to the grid through the inverter could directly absorb energy from the grid. The DC side of the energy storage system using bidirectional DC / DC converter, which can keep the DC side of the battery storage stable.
Analysis and Research of Short-Circuit Fault for SRD Based on Maxwell and Simplorer
Authors: Xiao Li , Sun He Xu , Liu Wei Peng , Zhang Pei Pei
Published: May 2013

Switched reluctance motor (SRM) has the characteristic of fault tolerance inherently. Short-circuit in motors windings and the power converter are ones of the most common faults. Based on finite element analysis software Maxwell and circuit analysis software Simplorer, this paper takes an in-depth look at the principle of short-circuit fault, and two cases are simulated, one where a few turns are shorted, and one where a complete pole is shorted, and analysis the effect of main faults on SRD performances based on asymmetric half-bridge power converter, respectively from the view of magnetic circuit and field circuit. Results of simulation show that these failures have exert some negative effects on parameters of current and torque of the entire system.
Study on Fault Diagnosis Tree Generation Technology Based on Correlation Matrix
Authors: Wang Wei Wei
Published: May 2013

Based on correlation matrix, that paper discused fault diagnosis tree generation method, and show diagnosis tree generation steps by introducing fault diagnosis tree generation process of a equipment system. Finally, apply the diagnosis tree to maintenance the actual equipment to verify its correction and practicality.
Failure Effects of Anti-Hunting Damper on High-Speed Train
Authors: Zhang Ji Min , Man Li Wen
Published: May 2013

The multi-body dynamic model of the high-speed train is established in order to study the failure effects of anti-hunting damper. Four kinds of failure case of the anti-hunting damper are compared, specifically including: one anti-hunting damper of the front bogie is broken; two anti-hunting dampers of the front bogie are broken; three anti-hunting dampers of the front bogie are broken; all four anti-hunting dampers of the front bogie are broken. The results have shown: when only one anti-hunting damper is broken, the influence to the dynamic performance of the high speed train is small, but once two anti-hunting dampers or more out of work, the critical speed of the vehicle decreases much more and the curve-passing performance also become worse.
Assessing the Reliability of Power Transformer by Quantitative Fault Tree Analysis
Authors: Sihite Josep Franklin , Kohda Takehisa
Published: May 2013

The purpose of this paper is assessing the reliability of power transformer for a switchyard by quantitative fault tree analysis. First step is determines if the fault tree is static or dynamic. To generated exact calculated results, the static entities are computed using standard combinatorial techniques. The dynamic entities are transformed into equivalent Markov models. The results for these various entities are then brought together using techniques employed for generalized fault tree analysis to produce exact calculations. The reliability of power transformer systems of GI Simangkuk switchyard in Indonesia was assessed and the main contributors have been identified. This result will help the decision maker to improve the reliability of power transformer system.
Broken Rice Detection Based on Transmission Power Measurement Using a Microstrip Wide-Ring Sensor
Authors: Mun Hou Kit , You Kok Yeow , Dimon Mohamad Ngasri
Published: May 2013

This paper proposes a microstrip wide-ring sensor for percentage of broken rice determination based on transmission power measurement. The microstrip wide-ring sensor with low insertion loss was designed to operate at frequency range from 1 GHz to 3 GHz. Calibration equations for measurement of percentage of broken rice at 1.93 GHz and 2.50 GHz were obtained and validated with white rice for percentage of broken rice ranging from 0% to 100%. The lowest error in percentage of broken rice prediction was 11.03% at 1.93 GHz.
Fatigue Life Analysis for Motor Base of Vehicle Glass Lifter Based on ANSYS Workbench
Authors: Liu Jian Guo , Liu Yu Long , Li Xi
Published: May 2013

It is important to analyse the fatigue life of components. We introduced the mechanism of metal fatigue, and systematically discussed the basic methods of fatigue life analysis and its development. The use of nominal stress method and the law of Miner in the fatigue damage accumulation theory are highlighted. The fatigue life analysis for motor base of the glass lifter was completed using this theory on ANSYS Workbench platform and according to the result, structure optimization was completed to make its life longer.
Forest Fire Detection System Based on Zigbee Wireless Sensor Network
Authors: Zhu Ying Li , Xie Ling Qing
Published: May 2013

According to the grim situation of current global forest and wildland fires, the article presents a real-time fire detection system based ZigBee wireless sensor network and GPRS network. The system gives the hardware design of wireless sensor node and software implementations. The ZigBee nodes are mainly responsible for collecting and transporting the special environment parameters of the forest including temperature, humidity and smoke concentrate and so on, and send the data through the GPRS module to the remote monitoring center. It has a simple structure, low power consumption, flexibility of the node and other advantages that accomplish data acquisition and long distance transmission.
System Design of a Fifth-Order Close-Loop ΣΔ Accelerometer
Authors: Lang Wei , Wan Pei Yuan
Published: May 2013

This paper presents the system design of a high order single loop electromechanical ΣΔ accelerometer. The noise-coupled is employed in the fourth-order feed-forward micro-accelerometer ΣΔ modulator to provide fifth-order noise shaping performance. It is implemented without degrading the loop stability and without changing original loop coefficients of the fourth-order accelerometer.
A Torque Measuring Method for Robot Joints with Harmonic Drives
Authors: Pan Xi Nan , Wang Hong Guang , Jiang Yong
Published: May 2013

To meet the demand of joint torque measurement for a modular reconfigurable robot, a harmonic drive built-in torque measuring method was proposed. The robot and its joint module and the torque measuring principle were introduced. Based on the two-order ripple model, strains on the flexspline were then analyzed. A new measuing method based on double compensations was proposed. This method cancels out the first order ripples by individual channels, and then cancels out the remain ripples by weighted stacking the signals. The relationship between output signal and torque was given, and a new gain-tuning method was presented. Finally, a simulation was conducted. The simulation proves that the proposed torque measuring method is correct and of high accuracy.
3D Thermo-Mechanical Simulation Coupled with Adaptive Remeshing for Metal Milling
Authors: Zhang Jie , Cherouat Abel , Borouchaki Houman
Published: May 2013

As a material removal process, metal milling process involves large geometry deformation, material thermo-visco-plastic flow coupled with damage and complex contact-friction problems. During simulation of metal milling, the finite elements distort severely at the local regions with high gradient of physical field such as stress, strain and temperature due to these problems. This paper presents numerical adaptive remeshing procedure dedicated to metal milling process. The procedure integrates Explicit solver of ABAQUS, OPTIFORM mesher and python script program transfer to execute step by step the incremental milling process. At each step, the meshes are refined and coarsened automatically based on geometrical and physical error estimations; the physical fields are transferred (point to point) from old to the new one using advanced algorithm. Johnson-cook material model is used to simulate the material plastic flow with ductile damage. Some numerical results are given to demonstrate the efficiency of the proposed procedure.
Kinematic Behaviour Modeling of the Axes of a Machining Center in High Speed Milling
Authors: Gassara B. , Dessein Gilles , Baili Maher , Hbaieb M. , Saï W. Bouzid
Published: May 2013

In the context of high speed milling HSM, the feed rate does not always reach the programmed value during the machining process which implies an increase of machining time and non compliance with the programmed feed rate. This phenomenon leads to productivity issues and an underestimation of the cost of machining for the industry.
The aim of this study is to identify the kinematic behaviour of the machine tool during any type of discontinuity between linear and circular contours in different combination by taking into account the specific machining tolerances. In order to achieve this, a model of the law of the axes motion and the actual trajectory at discontinuities is necessary. This method is based on the subdividing of the trajectory into elementary geometries according to the type of interpolation (circular or linear). The proposed method can estimate the cycle time with a maximum error of 5% between the actual and the prediction cycle time.
Finally, an experimental study was carried out on a high speed machine. It is based on elementary tests in order to analyze the axes behavior during any type of discontinuity and to validate the developed models.
Comparative Study of Tools in Drilling Composites T700-M21 and T800-M21
Authors: Le Dref John , Eyma Florent , Dessein Gilles , Denaud Louis Etienne , Landon Yann
Published: May 2013

The drilling of composite materials can produce, around the hole, defects and damages which decrease the mechanical resistance of the drilled workpiece. This study shows the influence of several tools (drill, mill and reamer) on the hole quality obtained, in the context of reference parts where surface integrity is a priority. An experimental study is suggested and the criteria used to assess the hole quality are defined. Results show the behavior of each type of cutting tool and their influence on the defects generated. Finally, this study helps creating a scale of recommended cutting conditions to reduce the tool wear and improve the hole quality.
Applications of Nanostructured Materials as Gas Sensors
Authors: Singh Ravi Chand , Singh Manmeet Pal , Virk Hardev Singh
Published: May 2013

Gas detection instruments are increasingly needed for industrial health and safety, environmental monitoring, and process control. To meet this demand, considerable research into new sensors is underway, including efforts to enhance the performance of traditional devices, such as resistive metal oxide sensors, through nanoengineering. The resistance of semiconductors is affected by the gaseous ambient. The semiconducting metal oxides based gas sensors exploit this phenomenon. Physical chemistry of solid metal surfaces plays a dominant role in controlling the gas sensing characteristics. Metal oxide sensors have been utilized for several decades for low-cost detection of combustible and toxic gases. Recent advances in nanomaterials provide the opportunity to dramatically increase the response of these materials, as their performance is directly related to exposed surface volume. Proper control of grain size remains a key challenge for high sensor performance. Nanoparticles of SnO2have been synthesized through chemical route at 5, 25 and 50°C. The synthesized particles were sintered at 400, 600 and 800°C and their structural and morphological analysis was carried out using X-ray diffraction (XRD) and transmission electron microscopy (TEM). The reaction temperature is found to be playing a critical role in controlling nanostructure sizes as well as agglomeration. It has been observed that particle synthesized at 5 and 50°C are smaller and less agglomerated as compared to the particles prepared at 25°C. The studies revealed that particle size and agglomeration increases with increase in sintering temperature. Thick films gas sensors were fabricated using synthesized tin dioxide powder and sensing response of all the sensors to ethanol vapors was investigated at different temperatures and concentrations. The investigations revealed that sensing response of SnO2nanoparticles is size dependent and smaller particles display higher sensitivity. Table of Contents
TLR3-Triggered Reactive Oxygen Species Contribute to Inflammatory Responses by Activating Signal Transducer and Activator of Transcription-1
Authors: Yang Chul-Su , Kim Jwa-Jin , Lee Sung Joong , Hwang Jung Hwan , Lee Chul-Ho , Lee Myung-Shik , Jo Eun-Kyeong
Published: May 2013

Intracellular reactive oxygen species (ROS) are essential secondary messengers in many signaling cascades governing innate immunity and cellular functions. TLR3 signaling is crucially involved in antiviral innate and inflammatory responses; however, the roles of ROS in TLR3 signaling remain largely unknown. In this study, we show that TLR3-induced ROS generation is required for the activation of NF-κB, IFN-regulatory factor 3, and STAT1-mediated innate immune responses in macrophages. TLR3 induction led to a rapid increase in ROS generation and a physical association between components of the NADPH oxidase (NOX) enzyme complex (NOX2 and p47phox) and TLR3 via a Ca2+-c-Src tyrosine kinase–dependent pathway. TLR3-induced ROS generation, NOX2, and p47phox were required for the phosphorylation and nuclear translocation of STAT1 and STAT2. TLR3-induced activation of STAT1 contributed to the generation of inflammatory mediators, which was significantly attenuated in NOX2- and p47phox-deficient macrophages, suggesting a role for ROS-STAT1 in TLR3-mediated innate immune responses. Collectively, these results provide a novel insight into the crucial role that TLR3-ROS signaling plays in innate immune responses by activating STAT1.
L’impermanence du musée
Authors: Landry Anik , Schiele Bernard
Published: May 2013

Les auteurs décrivent la mise en perspective de l’évolution récente de l’institution muséale en trois phases successives. La première couvre grosso modo la période qui va de la fin de la Seconde Guerre mondiale aux années 1990 ; elle fait fond sur la volonté de démocratiser le musée. La seconde coïncide avec l’arrivée de l’interactivité et l’autonomisation de l’exposition dans le contexte de la poussée néo-libérale. Cette tendance, qui s’affirme à partir des années 1980, domine aujourd’hui. La troisième est marquée par une affirmation identitaire déjà manifeste dès les années 1990. Mais comme le montrent Anik Landry et Bernard Schiele, cette poussée de l’identitaire est multiforme et déstabilise, de ce fait, l’édification d’un monde commun qui était placée au fondement même de la fonction symbolique du musée depuis la Révolution.
Représentations du féminin : sexe, concept et définitions
Authors: Courbières Caroline
Published: May 2013

Le féminin est ici étudié à partir de ses catégorisations langagières et définitionnelles. Partant de sa réalité biologique, la décontextualisation de la chose féminine confirme le sexe comme élément de catégorisation préalable à toute autre de ses saisies. Le critère sexuel ordonne l’inscription du féminin par opposition au masculin sur le plan conceptuel. Cette pré-catégorisation se projette sur le plan linguistique, au niveau duquel se figent des représentations féminines. Les dictionnaires de langue construisent ainsi un discours où le féminin versus le masculin se trouve à la fois dénoté et diversement connoté en tant que sexe.
Nursing Activities Identified through Pediatric Nursing Simulation.
Authors: Shin Hyun Sook , Shim Ka Ka , Lee Yu Na
Published: May 2013

PURPOSE: This research was a descriptive study of nursing activities observed in nursing simulation during a senior nursing student practicum. Content and frequencies of nursing activities during the simulation practice were identified.METHODS: Thirty-six episodes of pediatric nursing simulation were videotaped. Both verbalizations and descriptions of nonverbal behaviors were recorded from the videotapes. The data were coded and analyzed. The coded nursing activities were evaluated for frequency and purpose of interaction.RESULTS: Average time per simulation episodes was 27 minutes and ranged from 3.30 to 32.54 minutes. Nursing activities in these simulation episodes included nursing assessments such as vital sign measurement, associated symptom assessment, and check of patient condition, nursing interventions such as medication, tepid water massage, fluid therapy, provision of oxygen, suctioning, hyperglycemia and hypoglycemia management, communication such as parent education, procedure guidance, and communication among providers.Activities in assessment were most frequent, and among them, vital sign measurement and check of patient condition were more frequent than others.CONCLUSION: Students showed enhanced nursing activities such as more frequent nursing assessment, communication and interventions in their simulation experience. Therefore simulation experience can be considered as one strategies to provide nursing students with better and more intense practicum experience.