bluuebunny/crossref_metadata_2025 huggingface dataset:
The Analysis of Industry Organization Model Based on the Economic and Ecological Benefits
Authors: Cai Shao Hong , Li Ren Fa
Published: February 2011

This paper studies the production effectiveness of industrial cluster production and recycling production from the dual perspective of the economic and ecological benefits, and put forward a new model of recycling industry cluster which can get the best economic and ecological benefits. It has a great significance on harmonious development of resources, environment and economy.
Accounting Method of Intensity for Double Telescopie Props of Hydraulic Supports
Authors: Cao Lian Min , Zeng Qing Liang , Xiao Xing Yuan
Published: February 2011

This paper mainly analyses the force state for upper telescopie prop, down telescopie prop and cylinder of double-telescopie props for hydraulic supports. It builds up the mathematic model for accounting intensity of double-telescopie props, and presents the calculating method of accounting intensity for double-telescopie props.
Game Model of Homebuyer’s Behavior under Housing Security System
Authors: Guo Wei Qi , Sun Shao Rong , Cui Xiao Li
Published: February 2011

Economically affordable housing (EAH) system is aimed to resolve the housing problem for people without housing or poorly-housed families. However, driven by the economic benefit, increasing homebuyers ineligible to purchase EAH provide fake materials to acquire EAH, which makes EAH system deviate from its original aim. In the paper, we put forth the critical value of surveillance intensity by the government through the game analysis on the government and the fraudulent purchasers and conclude that the fraudulent purchase can be effectively controlled as long as the critical value is satisfied. Based on this, punishment measures and intensities for the fraudulent purchase are surveyed and quantified, and thus come up with the various supervision and surveillance intensities needed by the government for each punishment measure. This provides a theoretical basis and quantitative standard for the government to formulate an effective management system.
Current Research of Soft Denture Liner
Authors: Yan Zhi Ling , Qin Yi Fei , Sun Hui Qiang
Published: February 2011

Having been applied in oral cavity rehabilitation for more than one century, soft denture liner still can not meet clinical requirements now. This article puts forward a review on the research achievements of its physical and chemical properties (including bond strength between soft liner and denture base, soft liners’ elasticity, water sorption and solubility), factors influencing microbes’ adherence, prevention and cure measurements, and recent major tasks in this field and so on.
Information Delay Protocol Using Quantum Entangled States
Authors: Li Xiao Yu , Zhang De Xi
Published: February 2011

In this paper we provide a information delay protocol using quantum entangled states. By sharing EPR(Einstain-Rosen-Podolsky) pairs one person can give the other person some information which cannot be read until he or she lets the latter do. The principles of quantum mechanics guarantee that the protocol is unconditionally secure. When the one decides to let the other get the information, he or she need only to send some dictates through a public classical channel. So the protocol is easier to carry out and more robust in practice.
Analysis and Evaluation Research on Intellectual Property Formal Conflicts in Knowledge Transferring among EC Enterprises
Authors: Su Shi Bin , Gao Rui
Published: February 2011

To deepen the existing research, this paper analyzes the intellectual property formal conflicts in knowledge transferring among enterprises in EC environment. Then it researches intellectual property conflicts evaluation in knowledge transferring in EC environment, raises hypothesis of related questions and notation hypothesis, and accomplishes the evaluation research on intellectual property conflicts in knowledge transferring among enterprises in EC environment by AHM and Bayesian. Finally it gives the future research orientations.
Compensation of Phase Noise Effects for IEEE 802.16e OFDMA Systems
Authors: Chen Chien Sheng , Lin Yung Chuan , Shou He Nian , Sun Chi Tien
Published: February 2011

Orthogonal frequency division multiplexing (OFDM) system which provides high spectral efficiency has obvious advantages in robustness against the multipath delay spread and the fading channel. One of the major disadvantages of such a multi-carrier modulated system is the sensitivity of its performance to synchronization error, such as phase noise and frequency offset. Phase noise is caused by the mismatch between the transmitter and the receiver oscillators. Phase noise in an OFDM system can destroy the orthogonality of the subcarriers and cause inter-carrier interference (ICI). Phase noise resulting in common phase error (CPE) and Inter-Carrier Interference is a critical challenge to the implementation of OFDM systems. In this paper, the phase noise effects of the IEEE 802.16e OFDMA systems are compensated. The practical cluster-based method which is used to estimate either the CPE or the ICI coefficients in the fading channel and compensate the effects of phase error is also proposed. Numerical results demonstrate that the proposed algorithm can effectively improve the performance caused by phase noise.
Applying System Theory to Transient Fault Tolerance and Safety Enhancement of Tunnel Construction Wireless Monitoring and Control System
Authors: Huang Xiong Feng , Zhou Chun Jie , Qing Yuan Qing , Wang Ye , Yang Ming Yue
Published: February 2011

Transient faults are hard to be detected and located due to their unpredictable nature and short duration, and they are the dominant causations of system failures, which makes it necessary to consider transient fault-tolerant design in the development of modern safety-critical industrial system. In this paper an approach based on system theory is proposed to tolerate the transient faults in tunnel construction wireless monitoring and control systems (TCWMCS), in which the effects of transient faults are expressed by dysfunction of interactions among software applications. After analyzing the dysfunctional interactions of the system by the operational process model and educing the causes of dysfunction in the functional control diagram, a safety enhancement way was proposed for the designers, in which effictive safety constraints were set up to tolerate the transient faults. The experiment evaluation indicated that the effects of transient faults could be exposed by the causal factors of dysfunctional interactions and system safety could be enhanced by the enforcement of appropriate constraints.
Risk Assessment for Remanufacturing System Based on Neural Network
Authors: Wang Qiu Lian , Li Cong Bo
Published: February 2011

To provide referenced risk assessment model for implementing remanufacturing program in enterprise, a set of evaluating indicators was proposed according to the characteristics of the remanufacturing program’s life cycle, which includes acquisition, assessment, disassembly, reproducing and reprocessing phases; And Back Propagation neural network (BPNN) was applied to measure the risk of the remanufacturing system as evaluating method; In addition, the influence of the evaluating indicators on the output was calculated by the Relationship Function between the networked weights, so the key indicators can be found out. The risk assessment model is trained by five samples obtained from the Internet, and is verified by the case of one machining tools company.
Efficient Robust Blind Beamforming Algorithm
Authors: Song Xin , Wang Jin Kuan , Wang Bin
Published: February 2011

Because blind adaptive beamforming algorithms do not depend on any reference signal, they have found numerous important applications in signal processing. However, the conventional constrained constant modulus algorithm (CMA) may suffer significant performance degradation in the presence of the slight mismatches between the actual and assumed signal steering vectors. In this paper, to combat the mismatches, a novel robust constrained CMA is proposed for implementing double constraints with recursive method updating, which is based on explicit modeling of uncertainties in the desired signal array response. The proposed robust constrained CMA provides an improved robustness against the signal steering vector mismatches, enhances the array system performance under random perturbations in sensor parameters and makes the mean output array SINR consistently close to the optimal one. The performance of the proposed algorithm is compared with that of linear constrained CMA algorithm by computer simulations, the results of which demonstrate a marked improvement in the robustness against signal steering vector mismatches.
Ant Colony-Based Load Balancing Algorithm for Multi-Source Multicast Networks
Authors: Wang Ling Xiu , Cao Ye Wen
Published: February 2011

IP multicast protocols tend to construct a single minimum spanning tree for a multicast source (i.e., group), in which only a few internal nodes supply multicast traffic. In multicast networks especially with multiple multicast sources where bottleneck effects may occur frequently, frequently used multicast service leads to inefficient network utilization problems. This paper presents a new network utilization algorithm for multicasting called load distribution algorithm (LDA). The LDA algorithm uses selecting candidate path based on ant colony algorithm and multicast scheduling to distribute the contention multicast packets onto their corresponding candidate paths. The numerical results show that a multicast protocol with LDA has higher efficiency of resource utilization and meanwhile maintains less end to end delay compared with the original one without LDA.
Data Processing and Error Analysis of Phased-Array Doppler Sonar Velocity System
Authors: Zhang Kai , Shang Kun
Published: February 2011

The basic test of the phased-array Doppler sonar velocity system made by us indicates that the positioning errors are large. From the positioning result, it can be known that compass error is the dominant factor. Therefore, to improve the measurement precision of compass and revise its course deviation is one of the keys to improve the accuracy of Doppler positioning. From the speed processing result, it shows that the positioning accuracy can be further improved through averaging the speed (smoothing).
The Experimental Data Analysis of Vector Hydrophone
Authors: Zhang Kai , Shang Kun
Published: February 2011

The paper gives out the calibration method of the sensitivity and phase to a vector hydrophone; it analysed the data from the lake trial and the sea trial. The results indicate that, in the isotropic noise field, the sound pressure and the velocity are not related, but the signals are completely relevant. When there is no coherent interference, both the average sound intensity device and the diagram of the target orientation estimation can efficiently estimate the target orientation; when there is the interference of a strong line spectrum, the average sound intensity device cannot work properly, but the diagram can still effectively estimate the target position; when the target radiates spectrum, the line spectrum of the target orientation estimation can still have very good performance.
Design of the Distributed Web Crawler
Authors: Chen Xing , Li Wei Jiang , Zhao Tie Jun , Piao Xing Hai
Published: February 2011

On the current scale of the Internet, the single web crawler is unable to visit the entire web in an effective time-frame. So, we develop a distributed web crawler system to deal with it. In our distribution design, we mainly consider two facets of parallel. One is the multi-thread in the internal nodes; the other is distributed parallel among the nodes. We focus on the distribution and parallel between nodes. We address two issues of the distributed web crawler which include the crawl strategy and dynamic configuration. The results of experiment show that the hash function based on the web site achieves the goal of the distributed web crawler. At the same time, we pursue the load balance of the system, we also should reduce the communication and management spending as much as possible.
Research on Location Accuracy of UAV Based on DGPS/INS Technique
Authors: Su Guo Hua , Shu Jian Sheng , Cui Ping , Lei Gang
Published: February 2011

Location accuracy of UAV which adopts DGPS location technique was studied. Introduced principle of DGPS technology, Built state and measurement formulizations of DGPS/INS mixed navigation system, and location accuracy of UAV which adopts DGPS/INS mixed navigation system was performed. Simulation results indicate adopting DGPS location technique can raise location accuracy notably and make the purpose of UAV point hitting really.
The Core Applications and Experience of Typical 3G Operators
Authors: Chen Xia , Lu Ting Jie
Published: February 2011

3G applications have developed rapidly in some countries. The experience of operating 3G core applications from some operators is worth learning. This paper summarized five main principles based on describing the core applications of typical 3G operators: 1. Provide personalized services: provide practical services to meet the needs of customers in all aspects, act as customers’ personal assistant; 2. Provide personalized and customized services, according to the needs of different customers: According to the different characteristics of different customers, customize personalized services; 3. Provide integrated services: connect mobile phones with other tools, develop converged services; 4. Innovate services continuously: Combine with the original advantages of the companies, innovate services continuously, seek for the development of differentiation; 5. Expand the cooperation among the industrial chain, attract and develop customers: make multilateral cooperation, provide a variety of services and promote mutual development of the industry.
Research on Power Transformer Fault Forecast
Authors: Zheng Rui Rui , Zhao Ji Yin , Li Min , Wu Bao Chun
Published: February 2011

To forecast power transformer fault, this paper proposed a integrated algorithm. Research found that discrete time series of power transformer dissolved gases concentration have 2 main types: the s type and the monotone increasing type. The gray verhulst model was chosen for forecasting the s type series, while the gray model predicted the monotone increasing type data. The two models combined a new integrated forecast model. The fault diagnosis method combines the improved three-ratio method and gray artificial immune algorithm, so it can diagnoses both single and multi power transformer faults, and give the fault location. Experiments show that the power transformer fault forecast algorithm is effective and reliable.
Research on Diesel Particulate Filter Regeneration Equipment Based on LPG
Authors: Hui Zhang , Xu Bo Yan , Wang Chuan Sheng
Published: February 2011

This paper give a LPG (Liquefied Petroleum Gas) burning regeneration DPF(Diesel Particulate Filter), which the filter bodies of both the DPF were made of winded metal mesh, to fit for the high sulfur diesel. The DPF were re-designed and optimized according to a long time bus installation in-situ experiments. The LPG burning regeneration DPF could trap the most part of the particulate matter (PM) (85% at maximum) and did not have noticeable effect on engine performance. Development of performance external LPG heating regenerative devices can be completed within 20 minutes DPF regeneration. It is cheap, good durability, a high degree of confidence. Because they do not use the catalyst can be regenerated, so it can be used in high-sulfur diesel.
Experimental Study on Elastic Modulus of a Steel-Plastic Composite Pipe
Authors: Wang Fei , Yan Guan Long , Wang Guo Wei
Published: February 2011

A pit experimental investigations on elastic modulus of the dn160 steel-plastic composite pipe are carried out in the paper. The experimental results show that the elastic modulus of steel-plastic composite pipe is 10.93 GPa. In order to verify the pit experimental, buried-heating experiments are conducted. It was found that the deviation is within 6%. The excellent agreement indicated that the elastic modulus data by pit experiment are reliable and can be used as basic data for directly buried heating pipeline design.
The Research of Composite Nonlinear Discrete Chaos Dynamical Systems to Mechanism Synthesis
Authors: Liu Qi Yuan , Luo You Xin , Zeng Bin
Published: February 2011

Many questions in natural science and engineering are transformed into nonlinear equations to be found. Newton iterative method is an important technique to one dimensional and multidimensional variables and iterative process exhibits sensitive dependence on initial guess point.　A composite discrete chaos dynamical system was constructed by two special discrete chaos dynamical systems and initial points were produced by proposed chaos system. For the first time, a new method based on composite discrete chaos dynamical system to obtain locate initial points to find all solutions of the nonlinear questions was proposed. The numerical examples in linkage synthesis and approximate synthesis show that the new method is correct and effective.
The Information Sharing Mechanism of the Supply Chain of Chained Enterprises Based on E-Commerce
Authors: Guo Wei Jie , Qi Huan , Guo Qiu Jun
Published: February 2011

Effective information sharing mechanism is a very important part of the supply chain. For the supply chain of chained enterprises based on e-commerce, we use the game theory to analyze the necessity of information sharing. The incentive model of information sharing for the participators of the supply chain is proposed based on the given cost and weighing of each participator.
The Research of Elite Multi-Parent Crossover Evolutionary Optimization Algorithm to Mechanism Synthesis
Authors: Liu Qi Yuan , Che Xiao Yi , Luo You Xin , Zeng Bin
Published: February 2011

Mechanism synthesis questions are transformed into nonlinear solving equations. On the basis of GuoTao algorithm, we present an elite multi-parent crossover evolutionary optimization algorithm by introducing the elite-preservation strategy and enhancing the selection pressure of parents in the process of crossover. Using the proposed optimization method, we can find quickly all solutions of nonlinear equations of mechanism synthesis. The numerical examples in linkage synthesis show that the method is correct and effective.
Influence of Carbon Source Concentration on Characterization of Boron-Doped Diamond Electrodes
Authors: Chen Yu Qiang , Lv Jiang Wei , Jiang Hong Wei , Peng Hong Yan , Feng Yu Jie , Yin Long Cheng , Wang Dan , Wang Hai Liang
Published: February 2011

A set of boron-doped diamond (BDD) electrodes were deposited on silicon substrates by direct current plasma chemical vapor deposition (DC-PCVD) system using different carbon source concentrations. The influence of carbon source concentration on characterization of BDD electrodes was investigated by scanning electron microscopy (SEM), X-ray diffraction (XRD), Raman spectroscopy and phenol degradation. It was found that BDD films with different carbon source concentrations were polycrystalline films with (111) dominant orientation. The films grew well when carbon source concentration was less than 2.5%, while graphite phase began to form when carbon source concentration was increased to 3%. Boron atoms were located at the substitutional site or interstitial sites in the crystalline lattice of diamond films, and didn’t damage the structure of diamond crystal. Within 4 h, 100 mg/L phenol solution in 80 ml could be oxidized by all the electrodes with removal efficiency higher than 90%.
Study on Vehicle Stability Control Based on Yaw Following and 4WS
Authors: Zhang Si Qi , Zhou Shu Wen , Zhao Guang Yao
Published: February 2011

Because of the high speed and insufficient stopping distance, a sudden obstacle will force the vehicle to perform a lane change maneuver to avoid a crash or rear-end collision. A vehicle yaw following control system was designed in this paper to prevent vehicles from spinning and drifting out on high speed obstacle avoidance under emergency. However, yaw following control system, in some situation, may not react properly to, or even deteriorate on-road rollover events. Four-wheel steering control system can reduce the excessive yaw movement due to yaw following control system. An integration control system, including yaw following control system and four-wheel steering control system was presented and discussed. With this improved control system, the vehicle lateral stability can be improved on high speed obstacle avoidance.
Exploring Effect Factors of E-Learning Behavioral Intention on Cross-Level Analysis
Authors: Liao Pei Wen , Yu Chien , Yi Chin Cheh
Published: February 2011

The study, based on the unified theory of acceptance and use of technology (UTAUT), investigates the determinants of e-learning acceptance. We create a cross-level variable of the incentive and social influence to explore with the other variable context effect and the interaction effects in the acceptance of e-learning. Data collected from 932 respondents in Taiwan were tested against the research model using the hierarchical linear model approach. This model improved Yu, Liao, Wen’s research to detailed intended the learning environment. The results showed that individual-level variables (performance expectations, effort expectancy, perceived behavioral control), and group-level variables (incentive, social influence) have a positive effect on behavioral intention. The incentive has an effect on behavioral intention through the moderating role of manager influence.
The Information Optimal Algorithm Based on Poly-Scaled Wavelet Wraps and Wavelet Frames with Finite Support
Authors: Zhang Tong Qi
Published: February 2011

In this paper, we propose the notion of vector-valued multiresolution analysis and the vector-valued mutivariate wavelet wraps with multi-scale factor of space L2 (Rn, Cv), which are ge- neralizations of multivariate wavelet wraps. An approach for designing a sort of biorthogonal vec- tor-valued wavelet wraps in higher dimensions is presented and their biorthogonality trait is charac- -terized by virtue of integral transform, matrix theory, and operator theory. Two biorthogonality formulas regarding these wavelet wraps are established.
Staff Similarity Computation in Technology Innovation Team
Authors: Sun Wei , Yu Yang
Published: February 2011

The main objective of this investigation is to explore new similarity algorithms of staff similarity in technology innovation team. First, this paper proposes the knowledge representation model of technology staff based on network, and the cliques after clustering according to network feature expresses the sub-fields. Second, from the view of knowledge contained in technology staff, this paper proposes the similarity algorithm based on VSM and the similarity algorithm based on sub-field. Finally, we use the staff classification of one technology innovation team as case study. The experiment results reveal that the similarity of the new methods is accurate than that of the old method, and the information obtained by the new methods is more than that obtained by the old method.
Color Feature Extraction Method in the Video Surveillance System
Authors: Zhang Li , Yu Hai Bin , He Zhi Wei
Published: February 2011

A human color feature extraction method based on the improved Mean shift algorithm and kernel density estimation was proposed with respect to the human feature extraction in the video surveillance system with multi-cameras. It first gets suitable region partition of each person through the improved Mean shift algorithm. Afterwards, kernel density estimation is done to each region’s pixels to attain the color density function. Then, the color feature extraction of each person is realized. The proposed method could attain accurate color model because it automatically gets reasonable region division not by fixed region division fashion, but by human appearance color distribution. Experimental results show the method’s feasibility and robustness. It lays foundation of the human tracking with multi-cameras.
Polygonal Mesh Partitioning for NURBS Surface Generation
Authors: Tong Gang , Savchenko Maria , Hagiwara Ichiro
Published: February 2011

Surface reconstruction and NURBS surface generation based on 3D surface mesh partitioning are more essential today. In this paper, we present a new method of automatic partitioning complex surface meshes into the bounded regions with four corner points (quadrilateral regions) based on using control points (notches) for NURBS surface generation. The procedure of this method consists of 4 major steps: (1) the 3D polygons mapping into 2D polygons; (2) convex decomposition of the polygons in the 2D space; (3) subdivision of each polygons into quadrilateral regions; (4) mapping the received 2D regions onto the 3D original surface mesh. Main contribution in this paper is automatic partitioning of the 3D segmented parts of complex surfaces into quadrilateral regions based on combination of segmentation, mapping, and subdivision techniques. Automatic partitioning allows us to create not rectangular but quadrilateral regions without using any user-dependent parameters for further NURBS surface generation.
Data Mining: Associating Information Literacy with Regulating Rules
Authors: Lin Chia Chia , Shih Dong Her
Published: February 2011

The Internet is filled with opportunities for learning, communicating, and sharing information. It is a valuable resource for children and adults alike. Like any large community, however, the online world presents some underlying risks, especially for children. Parents need to be aware of some of the potential problems their children could encounter, and try to take adequate measures to protect their children from injury. In this paper, research will try to explore the relationship between parent’s information literary, the confidence in child’s ability of self-defense on the internet, and adequate measures to promote child using the internet more effectively. Association rules, a kind of data mining strategies, will be the main tool to manipulate the dataset. Apriori, a classic algorithm for learning association rules, is designed to operate on databases containing transactions.
CAN Bus Based on Intelligent Built-In Test Technique in Complex Electronic System
Authors: Lei Lin , Wang Hou Jun
Published: February 2011

Built-in Test (BIT) technique is a important equipment in complex electronic system. In this paper, the CAN bus based on intelligent built-in test technique in complex electronic system was presented to make use of the advantages of CAN bus to solve the problems of communication and reliability of the distributed intelligent BIT system. This paper elaborates the structure of intelligent BIT system and the fault-detection technique, and the nodes in intelligent BIT system are equipped with the CAN bus interface. It also describes the software and hardware design of intelligent BIT node. The high-speed communication and reliability of CAN bus facilitate the communication and timely disposal of the testing signal and the intelligent BIT design. Experiments and practical applications approved that this technical method was feasible and effective.
Computer-Aided Design of the Mine Hoist Spindle Based on Case-Based Reasoning
Authors: Chen Shuang , Wang Jun
Published: February 2011

CBR(Case-based reasoning)is an important research direction of artificial intelligence field,which start a new way for it. The mine hoist spindle is the most critical equipment to hoisting equipment.It is the main part of the machine which relates to the upgrading of equipment life.With the platform of Visual C++,we analysised the design methods of the mine hoist spindle based on CBR in this experiment.It will combine computer-aided design technology with artificial intelligence factors.
Synthesis of Nano-Hydroxyapatite Surface-Grafting Poly(L-Lactide) under Microwave Irradiation
Authors: Luo Bing Hong , Hsu Chung En , Yang Jing , Zhao Jian Hao , Zhou Chang Ren
Published: February 2011

Nano-hydroxyapatite (n-HAP) surface-grafting poly(L-lactide) (g-HAP) was synthesized by ring-opening polymerization of L-lactide (L-LA) using stannous octoate as initiator and n-HAP as co-initiator under microwave irradiation. An optimal reaction condition was obtained as follows: temperature of 140 °C, irradiation time of 45 min and microwave power of 50 W. The products were characterized by FTIR, TGA, x-ray scattering and particle size analysis. Results showed that the feeding ratio of nn-HAP：nL-LAhad a significant influence on the grafting percentage of g-HAP. With increasing the nn-HAP:nL-LA feeding ratio from 1:50 to 1:400, the grafting percentage of g-HAP increased correspondingly from 14.91% to 35.88%. The g-HAP particles showed a smaller size than that of pristine n-HAP, suggesting that the grafted poly(L-lactide) segment facilitated to prevent the g-HAP particles from aggregating.
The Design of Embedded Detecting and Tracking System
Authors: Li Zhong Hai , Liu Dan , Cui Jian Guo , Li Shen
Published: February 2011

On the basis of analyzing the character of target detecting and tracking algorithm, referencing the successful application of embedded system in the fields of electronics，signal processing and computer technology, combining target detecting and tracking and embedded technology, an embedded target tracking system is proposed which based on s3c24lO on which running clipping Linux system, and a tracking example of flying target is given. The whole system reaches the target of small size and good real-time. It’s a useful attempt to realize the small and intelligent of target tracking system.
Surface Inspection Using Computer Vision and Gradient Spectrum
Authors: Song Qiang
Published: February 2011

This paper is concerned with the problem of automatic inspection of hot-rolled plate surface using computer vision. An automated visual inspection system has been developed to take images of external hot-rolled plate surfaces and an intelligent surface defect detection paradigm based on gradient spectrum technique is presented. Gradient spectrum characterizes the spatial configuration of local image texture and is robust against any monotonic transformation of the gray scale. Texture features based on gradient spectrum are extracted from ROI in hot-rolled plate surface images and integrated into a feature vector which uniquely differentiates the abnormal regions from normal surface. Classification accuracies using the gradient spectrum and gradient-based method are compared. The results indicate that gradient spectrum performs well in classifying the samples with the lowest classification error.
Temperature Control of Batch Reaction Based on Genetic Fuzzy Neural Network
Authors: Man Chun Tao , Cui Jia , Yang Xin Xin , Wang Jun Kai , Wang Tian Feng
Published: February 2011

The batch reactor has strong nonlinearity and hysteresis, the conventional control method is hard to meet the control requirements. According to the batch processes temperature control, this thesis proposed an intelligent control scheme. Combined neural networks with fuzzy logic control, searching and optimized parameters of fuzzy neural network by using Genetic Algorithm (GA), displayed the design method and optimization steps, and the simulation results verify the control scheme which proposed is feasible and effective.
A Corpus-Based Study of College English Coursebooks
Authors: Liu Yan Hong , Liu Ze Quan
Published: February 2011

This study aims to create a college English coursebook corpus of coursebooks widely used in universities in China to form the basis of an analysis. The comparative study based on Cunningsworth [1] coursebook evaluation theory, in view of several checklist items and the adoption of quantitative and qualitative approach, involves: vocabulary size, the coverage of vocabulary and collocations and the readability of texts. The statistics of evaluation show that there is a gap between requirements and coursebooks. It is hoped that the indices examined in this study would be of some help for English teachers to take vocabulary and collocation size and text readability into account in teaching practice and possibly for administrators to adjust curriculum design and for editors or publishers to revise existing coursebooks.
Credit Problem in E-Commerce
Authors: Zhou Rui Jin , Fang Qiang , Li Wei , Wang Gai Xing
Published: February 2011

As an advanced trade mode, E-commerce is widely be used in various fields of national economy. The status of E-commerce has been analyzed by the paper and some restrictive factors have been proposed what about credit problem in E-commerce. In order to solve these restrictive factors, some concrete countermeasures have been proposed based on seriously analyzing the restrictive factors. It is hoped to provide some reference to the development of E-commerce.
Competitive Analysis of Multi-Attribute On-Line Auction
Authors: Ding Li Li , Wang Song , Kang Wang Lin
Published: February 2011

The emergence of auction that supports bids characterized by several attributes is one of the most recent evolutions within auction theory. The purpose of this paper is to introduce multi-attribute into the on-line auction mechanism, proposed by Lavi and Nisan. Our mechanism is designed for auctioning multiple units of a good when the bidders arrive and depart dynamically. To incorporate the buyer’s preferences across attributes in an auction setting, we adopt a novel application of a scoring function. Furthermore, we describe a competitive reservation utility strategy (RUS), which helps the buyer decide when and how many goods he should buy. Finally, we also perform numerical examples showing our results.
On the Capacity of MIMO Channels with Outdated Channel State Information
Authors: Li Ying , Zhu Yi Jun , Ma Lan , Zhu Yao
Published: February 2011

A Multiple-input multiple-output (MIMO) time-varying flat fading channel is considered. The transmitter obtained the channel state information (CSI) relying on the reciprocity principle or by the feedback from the receiver. Thus, channel state information at the transmitter (CSIT) is outdated due to the delay between the estimation of the channel and the transmission of the data. In order to achieve the maximum channel capacity, the transmitter linearly precoded the signal before transmission based on the outdated CSIT. Under the assumptions of wide-sense stationary uncorrelated scattering Rayleigh fading channels and Jake’s model, the instantaneous mutual information and ergodic capacity is derived for MIMO channels with outdated CSIT. The information outage probability of MIMO channel with outdated CSIT is also presented.
Analysis of a Delayed Predator-Prey Reaction-Diffusion System with Beddington-DeAngelis Functional Response and Two Stage Structure
Authors: Zhang Fang Wei , Xu Shi He , Shi Bao
Published: February 2011

In this paper, we study a delayed predator-prey reaction-diffusion system with Beddington-DeAngelis functional response and two stage structure on prey, an immature and a mature stage. The time delays are the time lengths between the immature’s birth and maturity prey species. Under some simple assumptions, using upper and lower solutions method and a comparison principle we prove that the unique constant positive steady states solution is global asymptotic stability. The results shows that the dynamic behavior of solutions to this model is similar to that of solutions to corresponding model without diffusion.
The Simulation and Test of Anti-Torsion Frame for Off-Road Vehicle
Authors: Yue Jing Tao , Dou Peng , Li Xin Yao
Published: February 2011

This paper studied the calculation and design of anti-torsion vehicle frame to reduce the torque transmission via the frame and advance the reliability of off-road vehicle’s loading equipment. Two kinds of projects are designed and analyzed by the tools of FEA on the extreme condition, then tested the prototypes of the two projects to compare the distributing of the load equipment’s stress and analyzed the road reliability of the whole system to validate the feasibility of the projects. The test data indicates that the average principal stress decreased to 43.6% ~49.2% after equipped flexible vehicle frame. This paper gives a helpful trial for decreasing the stress transmission from the ground to the vehicles on the off-road terrains and improving the reliability of the special’s load equipment.
Refining Response of Fibre Materials with Medium Consistency Refiners
Authors: Lei Li Rong , Huang Zhi Wen , Li You Ming
Published: February 2011

Several kinds of fibre materials including waste paper, wheat straw, bamboo and hardwood pulp were refined by using medium consistency refiner (MC refiner) at pulp consistency of 6-10%, and fibre fractions classification and length distribution after refining, paper physical properties and specific energy consumption during refining were compared with the refining process by using traditional low consistency refiner (LC refiner) at pulp consistency of 3-4%. The objective of this study is to investigate the effect of pulp consistency on refining response of the fibre materials. Results show that refining at consistency of 6-10% with the MC refiners effectively preserves fibre length, and the pulp after refining contains higher proportion of long fibre fractions in comparison with the pulp refined at consistency of 3-4% with LC refiners. It is also found in the experiments that physical properties of the paper made from the pulp refined at consistency of 6-10% with the MC refiners obviously enhance, and specific energy consumption during refining reduces by 30% compared with the refining at consistency of 3-4% with LC refiners.
Research on Monitoring System of 220 kV High-Voltage Substation Based on Bluetooth Technology
Authors: Wang Wen Xing , Cao Xing Lin
Published: February 2011

Through the construction of substation monitoring system based on Bluetooth, the separate monitoring systems of environment is integrated with the former comprehensive automation system into a unique system. It's a new step of substation automation. The system architecture, software, hardware and the necessary factions of this system are introduced in detail for reference of practical design.
The Safety Monitoring on 200-Meter High CFRDs
Authors: Yang Jie , Hu De Xiu , Wu Xiao Long
Published: February 2011

Compared with CFRDs in about 100-meter height, the high CFRDs in about 200-meter height are more sophisticated in dam deformation, seepage, stress and strain, structure and loads standing characteristics, etc. Thus it is very important to intensify the monitoring research on them. It was suggested to regard the safety monitoring of high CFRD as systems engineering, to pay equal attention to safety monitoring of both concrete face slab and to interconfirm their monitoring results. The overall analysis and discussion on high CFRD monitoring were presented at each aspects varying from the monitoring targets and tasks, monitoring principles and requirements, selection of monitoring items to monitoring implementation.
Super-Resolution Time-Delays Estimation in HF Channel Sounding Based on Chirp Sequence
Authors: Fu Long Fei , Xin Gang , Zhang Shui Lian
Published: February 2011

According to the characteristics of HF channel and chirp signal, an innovative multipath time-delay model of wide-band HF channel was proposed, by which the estimation problem of time-delay was converted into an estimation problem of spectrum.Then the MUSIC algorithm with super-resolution ability was applied to the problem above. The feasibility of estimating multipath time-delays based on single measurement data was deeply discussed. Meanwhile, the performance of applying MUSIC and root MUSIC algorithm to the model proposed in the paper was presented. The simulation results suggested that the method proposed in the paper owned super-resolution ability and robust in estimation of multipath time-delay.
Multiuser Beamforming Using Weighted Orthogonal Constant Modulus Algorithm
Authors: Xia Tai Wu , Liu Hong Jun
Published: February 2011

Beamforming is a core technique in intelligent antenna signal processing and has been receiving a prevalent focus by researchers. Common orthogonal constant modulus algorithm (OCMA) doesn’t guarantee that the weights of different beamformers converge to corresponding signals when the array of receivers takes in signals with same feature. Thereby a weighted orthogonal constant modulus algorithm (WOCMA) is proposed in which weights of different beamformers are ensured to be disparate by controlling their relevance down to a low level, which concludes different weight converges to corresponding signal. Simulation has proved that WOCMA possesses fast convergent speed and favorable facility in receiving signals.
Study on Zhongmou 500kV High Voltage Substation Monitoring System Based on Bluetooth Technology
Authors: Wang Wen Xing , Chu Qing He
Published: February 2011

The power structure of main electrical wiring diagram outgoing line in Zhongmu 500kV substation is analyzed firstly, and then the substation communication system based on Bluetooth technology was put forward in this paper. The power and critical loads are important, the connection lines and the connection modes in the substation are very complicated. Bluetooth technology can replace wired cable connection with the wireless interface in the short distance, prevent from complicated line in industry. This paper analyzes and designs model of the network in the substation, enhancing the automatic and intelligence level. Substation monitoring system was composed of meters, relays and other communication devices with Bluetooth components. The structure of the system can be divided into three layers, the bottom is monitor， the terminal in high-voltage chamber is the middle layer, the central processor in Control Building is the most top, bottom communicate with middle layer by Bluetooth technology.The system architecture, software, hardware and the necessary factions of this system are introduced.
Control Plane Functions and Multiple Connection Method in Switched Optical Network
Authors: Zhang Ning , Xu Xue Mei
Published: February 2011

In this article, we present a multiple connection method for a optical switching architecture and discuss the control plane to connection. In optical network, there are three function planes and every plane has its important role. Fast provisioning enables bandwidth on demand service, where a user or its proxy can directly request a connection by using appropriate signaling via the user-network interface. A call may embody any number of underlying connections, including zero. Benefits of this separation include supporting such optical services as scheduled bandwidth on demand, diverse circuit provisioning, or bundled connection.
A Neuron-Fuzzy Technique for Fault Diagnosis in Rotating Machinery
Authors: Yao Zheng , Zhao Qing Xin
Published: February 2011

The on-line fault diagnostics technology for machines is fast emerging for the detection of incipient faults as to avoid the unexpected failure. On the basis of fault diagnosis theory and method, this paper presents a applications of techniques for fault detection and classiﬁcation in rotating machinery based on fuzzy theory and neural network theory, the basic structure and working principle of the fault intelligent diagnosis system are introduced, the knowledge stored in the neuron-fuzzy system has been extracted by a fuzzy rule set with an acceptable degree of interpretability, the model of fuzzy fault diagnosis and the self-study principle are described. The practice proves that this is an effective method of large-scale and complicated electronic equipment, and it can also be applied to other fault diagnosis of complex systems and has certain portability.
Abrasion Failure Lives Simulation and Prediction of Key Parts for Breech Mechanism Based on Virtual Prototype
Authors: Hu Hui Bin , Cao Xin Wen , Chen Shu Xiao , Ma Ji Sheng
Published: February 2011

Breech mechanism is the key and important device to improve reliability and maintenance for large caliber guns. It’s major fault mode is grain abrasion caused by dry sliding friction. There is no feasible and practical technologies to simulate and predict the abrasion failure life of key parts for breech mechanism. A new simulation and prediction method is firstly put forward in this paper. Based on Pro/E and ADAMS, the virtual prototype of breech mechanism of semiautomatic vertical sliding-wedge type is established. To validate its precision and effectivity, qualitative and quantitative verification method are adopted to check the virtual prototype of breech mechanism. Virtual prototype produces key parts’ load spectrums and failure theresholds. Dry sliding friction and abrasion experiment provides abrasion rules of typical materials. Finial simulation and prediction results are given as abrasion thresholds and operating items, which provide sufficient references for breech mechanism’s maintenance and safeguard.
Study on Assessment of Enterprise Intellectual Capital Based on the Genetic Neural Network
Authors: Jiang Tian Ying
Published: February 2011

Compared to the neural network BP algorithm, the optimized model of genetic neural network based on the genetic algorithm has a more close assessed result to the expected one and smaller relative mistakes. Practical applications show that the new assess way of enterprise intellectual capital is rational and accessible, and it provides as an important tool to enterprise for intellectual capital decision.
Coupled ZnO/TiO2 Nanorods Deposited in the Pores of Expanded Graphite Prepared by Microwave Irradiation
Authors: Zhu Min Cong , Wang En Qiang , Zhang Ying Chen , Li Deng Xin
Published: February 2011

Expanded graphite (EG) was prepared by microwave irradiation at 1000W for 60s. The growth of coupled ZnO/TiO2 nanonods in the pores of EG by using hydrolysis method without harsh conditions was investigated and their microstructure was studied by scanning electron microscopy (SEM). Results show that pores of EG, which can load catalytic nanoparticles, is the physical base for growth of catalytic nanorods. The active edges of graphene of freshly EG is a key factor for the growth of coupled ZnO/TiO2 nanorods under non-catalytic and normal temperature and pressure conditions.
Rank Reversal and Rank Preservation in TOPSIS
Authors: Kong Feng
Published: February 2011

TOPSIS has been in use for more than 20 years in many fields. However, few researches have studied its defect of rank reversal. This paper, by studying the fundamental cause for the rank reversal problem in TOPSIS, put forward an improvement on TOPSIS based on the decision maker’s subjective preferences, which can, proved by a numerical example, overcome the rank reversal problem and lead to more scientific decision result that is in more agreement with the decision makers’ subjective intensions.
Negative Selection Algorithm Based on Double Matching Rules
Authors: Hu Yu , Li Bin
Published: February 2011

The theory of artificial immune had been widely used in the research of network intrusion detection. Nowadays, the existing detector generating algorithms based on negative selection usually use a certain matching rule, as a result, too many detectors may generate, and the false alarm rate will become more serious. This paper proposes an improved negative selection algorithm using double matching rule: candidate detectors should be selected by the improved Hamming distance matching first, then the remaining detectors go through the segmented r-chunks(rch) matching rule. Experiments show that compared with traditional algorithms, this method brings a small number and more efficient detectors, reduces the false alarm rate and guarantees the efficiency of detectors.