bluuebunny/crossref_metadata_2025 huggingface dataset:
Design for the Real-Time Three-Dimensional Digital Platform of GIS-Based Mine Safety Monitoring
Authors: Liu Tai An , Yuan Qiu Xin , Wang Yin Lei , Xu Jia Chang , Cha Zheng
Published: April 2011

With the applications of GIS technology, 3D modeling, programming, database technology and network communication technology, combining with Visual C ++6.0 and OpenGL, a real-time three-dimensional digital platform of GIS-based safety monitoring was designed. In the platform, a GIS-based mine simulation model and database framework were built; an overall data integration structure of the three-dimensional digital platform was designed; the GIS-based safety monitoring platform model and platform architecture were designed too. The platform has been designed and implemented in some one mining area in Shandong province and the application works well. This platform’s design and implementation, one of the most typical and successful cases in digital mine construction, provides viable ideas and methods for the construction of the real-time and three-dimensional digital safety monitoring building.
Optimization on Uniform Design for Preparing Monodisperse P(St/BA/AA) Microsphere by Dispersion Polymerization
Authors: Lin Jin Xian
Published: April 2011

The uniform design method is used to arrange experiment of dispersion polymerization of styrene, butyl acrylate and acryl acid. The stepwise regression technique is adopted to analyze the results. The mathematical models are built by regression equations between the microsphere conversion rate, the size and its distribution. There are many influencing factors, such as, 3 monomer concentrations, stabilizer concentration, initiator concentration, ratio of alcohol and water, temperature established, and their reliabilities evaluated. Although the predicted values from regression equation different from the observed values (relative divergences less than 10%)，the regression equation can be used for designing particles and mechanism research. All above researches can be used for optimizing dispersion polymerization reaction conditions.
Judgment of Resources-Environment-Economy Coordinative Efficiency in China on DEA Model
Authors: Jin Bo
Published: April 2011

If the resources-environment-economy coordinated development is in good mode in China？In this article, DMU were various provinces, municipalities and autonomous regions. Operating for our DEA analysis model using math software LINGO8.0, we obtained the DEA relative efficiency value of every DMU including scale efficiency and technology efficiency.We consider reducing environmental pollution under the premise of ensuring economic development must to adjust their energy consumption structure.
Research and Application of Virtual Dressing System Based on AR
Authors: Xie Bo , Ye Feng , Li Xiao Jun
Published: April 2011

Augmented reality (AR) strengthens the elements of a live direct or indirect view of a physical, real-world environment with sound or graphics. It can be applied in virtual dressing for online shopping, and provide a good solution for online product display. This paper presents a virtual dressing system framework including features capture, tracking and location, register and augmented display. It also designs a layer based application system and implements a prototype of virtual dressing system for glasses online shopping. The system can provide a brand new user experience than before.
Sectoral Differences in the Effect of Industrial Agglomeration
Authors: Yang Jing
Published: April 2011

This paper derives related-industry from input-output method, and is the first to apply the result into the study of the externality effect of within-industry agglomeration and related-industry co-agglomeration. As a main form of externality, localization economy can be resolved into within-industry agglomeration and related-industry co- agglomeration, this paper used Input-Output method and principle component analysis to identify related-industry. This paper finds the empirical evidence of within-industry agglomeration and related-industry co-agglomeration, within-industry agglomeration is the main source for labor-intensive industries, and related-industry co-agglomeration is the main source for capital-intensive and high-tech industry industries. This paper also finds that productivity will vary in an "inverted U" shape with the increase of within-industry agglomeration and related-industry co-agglomeration degree. These findings are beneficial for Government to make decisions of industry transfer.
Application of Statistical Analysis Methods to Optimize Fracturing Measures of Polymer Flooding in Sub-Layers
Authors: Yang Er Long , Deng Jing Fu
Published: April 2011

At present, fracturing is one of the most important stimulation measures during polymer flooding process, but the selection of well is mainly given by qualitative analysis. Deep researches are needed to provide optimal design based on the quantitative analysis. In this paper, combined with statistical analysis method and static data, using cluster analysis method to classify single wells into groups. Using single dependent variable multi-factor variance analysis method to realize the individual design of single well program of polymer flooding in Sub-layers. The results of this paper will provide technical supports for the quantitative analysis influenced by multiple factors, and also offer references to further enhanced oil recovery of Sub-layers in Sazhong development area.
Research on Excessive Investment with DEA Analysis for Chinese Listed Companies
Authors: Long Jing , Li Yan Xi
Published: April 2011

This paper measured level of corporate over-investment with DEA method. In this paper, the empirical research tested the excessive levels of investment in listed companies. Studies have been shown by investment-cash flow sensitivity and growth function in metrics when excessive levels of investment in listed companies in China. Tobin Q values are not objective enough in China's capital market, while DEA method can be more scientific measure of Chinese listed companies for the level of over-investment.
Analysis and Design of a Management System for the Seedling Production Based on ERP
Authors: Ding Ming , Lu Sheng Lian , Li Lei , Huang Dan Feng
Published: April 2011

In order to design a management information system to satisfy the demand for the seedling production in China, this article takes the grafted seedling production as an example to analyze the management process (inventory management, production planning, quality control, and so on) in a seedling enterprise. The ERP (enterprise resource planning) management method is applied to design the system. In order to achieve the information management and provide decision support for the overall management, expert knowledge in the form of database and models is used as a key solution to uncertainties that affect the agricultural production. The browser/server architecture (B/S) is adopted to design the system for a flexible deployment and a low total cost of ownership (TCO). The result shows that the system is steady and effective to manage information during the seedling production, and could be a tool for data processing and information management. The research and analysis of the seeding production management system based on ERP provide theoretical basis for the standard business process of agricultural enterprises.
Cluster Supply Chain Self-Organization Evolution Based on Cross-Chain Co-Opetition Game
Authors: Wu Qun
Published: April 2011

Cluster supply chain network as a new organizational system, which co-opetition is different from general enterprises and single supply chains because of their determined structural features and operational characteristics. There are single-chain co-opetition and cross-links dynamics co-opetition in cluster supply chain network organization. It analyzes cross-links non-cooperative game and cooperative game of two third-order supply chains through the expansion research of Cournot game. The results indicate that supply chain cooperative game is the best option for supply chain win-win.
Analysis of Power Quality Treatment Solutions for Electrified Railway
Authors: Xu Xiang Zheng , Zhang Feng Quan
Published: April 2011

Thanks to multi-stage full-wave or bridge rectifier energy conversion method is commonly used in electric locomotive, the resulting harmonic, reactive power and negative sequence and other hazards not only endanger the public power grid and other users, but also endanger electrified railway own safe and reliable operation. In this paper, the current electrified railway power quality control methods and means adopted are analyzed in detail, and their advantages and disadvantages are pointed out. Aiming at power quality control situation of electrified railway, the power quality comprehensive control development tendencies of electrified railway are proposed.
The Effects of Customer Participation on Service Quality, Customer Value and Customer Satisfaction
Authors: Ren Shu Xia , Zhang Ming Li , Tang Sai Li
Published: April 2011

Companies are increasingly focusing on customer participation to create value for the firms and their customers. To date, evidence regarding the effects of customer participation as a marketing tool has been primarily anecdotal. Relying on customer behavior theory and marketing theory, we develop a framework that explores the effects of customer participation on service quality, customer satisfaction and customer value. On the basis of which, an SEM analysis was conducted on the personal development industry. The results show that information exchange, cooperative behaviors and personal interaction have positive effects on service quality, customer satisfaction and customer value. Based on the results, this study explains the practical and academic implications for companies promoting customer creative participation.
A Holistic Schema Matcher
Authors: Gudala Archana , Li Long Zhuang , Kar Dulal , Mahdy Ahmed M. , Xiao Ming
Published: April 2011

The capability of matching the schemas of the databases has led to its wide use in e-commerce, data integration, and data warehousing. In this paper we develop a holistic schema matcher, which provides a match between two schemas by combining the match results from the element-level techniques as well as instance-level techniques. The experimental results demonstrate good performance of the proposed matcher.
Research on Powertrain Production Line Modeling and Design
Authors: Zheng Yong Qian , Li Jie , Zhao Ya Ling , Wang Deng Jun
Published: April 2011

Nowadays in automotive industry JIT production mode is an overwhelming trend. And it resulted in an unprecedented challenge to the traditional mode of production designing, operation and information transaction. To solve the problems mentioned above a novel method is proposed to establish planning system models with tree discrete view structure, to visualize control and optimization in designing production line based on processing work flow. This model gave attention to various paths to access and control the production line, and also to communications with other systems among enterprises. Finally, this paper proposed a prototype system and took a production line of 5V engine cylinder head for example to examine the planning method. The results show it helps a lot in improving the efficiency and accuracy of production line planning.
Study on Improved Genetic Algorithm for Min-Max Vehicle Routing Problem
Authors: Ren Chun Yu
Published: April 2011

The present study is focused on the Min-Max Vehicle Routing Problem (MMVRP). Improved genetic algorithm is used to get the optimization solution. First of all, use natural number coding so as to simplify the problem; apply insertion method so as to improve the feasibility; retain the best selection so as to guard the diversity of group; adopt self-adaptive method to strengthen the partial searching ability of chromosome. Finally, the good performance of improved algorithm can be proved by experiment calculation and concrete examples.
The Existence of Analytic Invariant Curves for a Planar Map
Authors: Liu Ling Xia
Published: April 2011

In this paper, we study the existence of analytic invariant curves for two-dimensional maps in the complex field C. Employing the method of majorant series, we discuss the eigenvalueof the mapping at a fixed point. We discuss not only thoseat resonance, i.e., at a root of the unity but also thosenear resonance under Brjuno condition.
A Solution Method for Engineering Equilibrium Mathematics Modeling under Mild Conditions
Authors: Li Guo Cheng
Published: April 2011

In this paper, a solution for engineering equilibrium mathematics modeling (EEMM) is considered. To obtain a solution of EEMM, we present a new type alternating direction solution method, and then its convergence is also shown under mild conditions. The results obtained in this paper can be taken as an extension of the existing method for EEMM.
Teaching System Construction and Optimization of Environmental Monitoring
Authors: Ma Yan Fei , Feng Xue Dong , Lu Jie
Published: April 2011

Environmental monitoring is one special and basal course of environmental engineering. This course has the characteristic of theory and practice, and there are some problems in teaching practice. The paper optimizes the course in three fields, such as teaching content of theory, teaching content of experiments and teaching methods. The object of course reforms is that students can grasp and understand the course contents well, at the same time they can improve the ability of innovation and solving problems.
Research on the Entity Relation Extraction of Field Based on Semi-Supervised
Authors: Guo Jian Yi , Zhao Jun , Yu Zheng Tao , Su Lei , Xian Yan Tuan , Tian Wei
Published: April 2011

Aim at the problem of supervised learning needing much labeled data for training, this paper proposes a new method based on Semi-Supervised learning. Firstly, to construct a classifier of certain accuracy, small-scale training data was used.Secondly, with the self-expanding idea, we applied the method of information entropy to select some new instances of higher credibility from candidate instances, which were to be predicted by the classifier. Finally, with the expansion of training data, training classifier re-iteratively, classification performance tended to be stable iteration termination, which achieved the entity relation extraction of tourism field by semi-supervised learning. The experiments result show that the new classifier which applies information entropy to iteratively expand training data to be trained makes the precision rate increase by 7% and the F-score increase by 15%.
Investigation of Design for Campus Roaming System
Authors: Qin Li Juan
Published: April 2011

At present, virtual reality technology is research hot spot in computer science. Campus roaming system is one application aspect of virtual reality technology. It provides a new means for digital campus. This paper gives a detail discussion for the design plan for three-dimensional virtual campus system with the aim to provide a practical avenue for the establishment of virtual campus roaming system.
Artificial Neural Network Used for Urban Rain-Flood Utilizing
Authors: Yan Jun , Zhang Ju , Zhang Yu Hua
Published: April 2011

The acceleration of urbanization and global warming are making urban rain-flood disaster more ordinary and more serious recently. Summing up the characters of urban rain-floods, the mechanism of urban rain-flood disasters is analyzed. More ever, the main countermeasures to prevent urban rain-flood disasters are stated. Finally, the optimal method to utilize urban rain-flood comprehensively is put forward with the aid of artificial neural network.
Discussion on Strategy to Achieve Mass Customized Logistics
Authors: Qin Yan Hong , Wei Guang Xing
Published: April 2011

Based on the analysis of concept and elements of mass customization which is mainly related to the area of production, the concept of mass customized logistics is proposed and analyzed. And then, the operational modes of mass customized logistics are illustrated at length. Finally, some strategies to achieve mass customized logistics are proposed and discussed.
A Method for Approximate Reasoning about Knowledge
Authors: Li Jun
Published: April 2011

In many of the application areas for reasoning about knowledge, it is important to reason about the possibility of certain events as well as the knowledge of agents. This paper introduces the concept of belief degree of an agent with respect to a fact at a given point. Moreover, based on the belief degree of agent i , a pseudo metric on the set of agent i’s graded knowledge are established. Lastly, two kinds of models for approximate reasoning are proposed, which provides a possible framework for an agent to develop approximate reasoning at a given point by using its graded knowledge.
The Approximation Properties of a Rational Cubic Spline
Authors: Tian Meng , Geng Hong Ling
Published: April 2011

This paper deals with the approximation properties of a rational cubic spline with quadratic denominator. The rational cubic spline has two families of parameters and based on function values only. From the point of view of the magnitude of the optimal error constant, it found that this kind of spline give good approximation to the function being interpolated.
Constrained Control of a Rational Interpolant
Authors: Tian Meng , Geng Hong Ling
Published: April 2011

In this paper, a rational cubic spline interpolation has been constructed using the rational cubic spline with quadratic denominator and the rational cubic spline based on function values. The spline can preserve monotonicity of the data set. The spline not only belongs to in the interpolating interval, but could also be used to constrain the shape of the interpolant curve such as to force it to be the given region. The explicit representation is easily constructed, and numerical experiments indicate that the method produces visually pleasing curves.
Double Compression Algorithm with Linear Interpolation of Dynamic Threshold
Authors: Tang Shi Xi , Tang Ke Ming
Published: April 2011

To solve the problem that the duration is too long when the change of the measuring process data of industrial real-time database appears slow, the double compression algorithm with linear interpolation of dynamic threshold is advanced. Good compression quality and reduction effect of process data is accessed. The compression and fitting times are less than 1ms, and the compression ratio is 6:1 on the 6000 real-time data compression. The compression time is short, and the compression ratio is high. The fitting error between each fitted value and the original value is within the threshold 1.0. The comprehensive performance is better than SLIM and Swinging Door compression algorithm.
Data Transmission Based on Guaranteeing QoS in Broadband Access Networks
Authors: Zhang Yan , Yu Wen Yu
Published: April 2011

For the unsymmetrical bandwidth in HFC network, this paper proposes a data transmission scheme of Cable Modem based on DOCSIS1.1. This scheme can meet different kinds of data’s demands. It can guarantee fine grading data transmission management and low ratio of packet loss. Then, this paper proves the validity of the scheme. Lastly, in order to improve the quality of data transmission, it gives the difficulties and research perspective in the future.
Cutting Temperature in Internal Minimum Quantity Lubrication Drilling of Superalloys
Authors: Kong Fan Xia , Zhang De Yuan
Published: April 2011

Super alloys is the ideal material for high temperature components although it has a great difficulty to cut, especially drilling. Minimum Quantity Lubrication (MQL) has a good advantage of green, lubricating and cooling effect. Comparison experiments of MQL cooling drilling and pouring cooling drilling were done with coolant holes in drill. The results show that: the maximum measure temperature is less than 100°C and the amount of wear is very small. Internal Minimum Quantity Lubrication drilling is an effective process to solve problems of high temperature and wear fast for super alloys drilling.
Experimental and Study of an Direct-Injection, Single Fuel CNG Engine
Authors: Guo Hui , Zhang Zhen Dong , Yin Cong Bo , Sun Yue Dong
Published: April 2011

In this paper, a single fuel in-cylinder, direct injection compressed natural gas (CNG) engine was presented, which was modified form a 175F gasoline engine, with the 80C196KC single chip microprocessor as the controller. The structure and function of the CNG engine control system, the drive circuits of the injection system, matching its parameters and establishing the control algorithms are introduced. An oxygen sensor was used to adjust the mixture ratio to restore the engine power and reduced the exhaust emission; peak-holding drive circuit of injector was applied to improve its responsibility and spare more electrical energy; high energy ignition system was designed to produce and distribute high enough energy. The result of experimental shows that the power of CNG engine is no lower than 95% of the power of gasoline engien in the most conditions. The exhaust emissions of HC and CO are obviously reduced, compared with the gasoline engine.
A Study of Image Weak-Edge Detection Combination of BP Neural Networks
Authors: Yang Jing Bing , Ding Hui , Zhang Shu Dong
Published: April 2011

This paper proposes an image weak-edge detection method based on the combination of edge features and BP neural networks. Through analyzing the basic characteristics of the image edge points, we construct 8 groups 3-D feature vectors as the training sample set, combining with the learning function based on gradient descent momentum and the Levenberg-Marquardt training function, to train the BP neural network, further complete the image edge detection. Finally, compared with the traditional edge detection methods, the experimental results show that this method can detect the weak-edge and corner-edge much better.
Study on Suddenly Extrusion Mechanism and Forecasting of Deep Mine Fully Mechanized Mine Head Face
Authors: Zhang Yong Jiang
Published: April 2011

In view of the Huai Nan mining area deep mine Dingji mine fully mechanized mine head face low-index outburst suddenly extrusion the region gas geological feature, analysis mechanism of the suddenly extrusion frictional sliding instability. The research gain sensitive index critical value drilling bits S and depth of hole coefficient S′, drilling gas inrush initial velocity q and attenuation coefficients Cq, its innovative index S′ the forecast enhanced the rate of accuracy take the ground stress as the leading role low- index outburst. The results show that the forecasting non-outbursting risk rate is 87%, and the forecasting non-outbursting accuracy rate is 100% during 2000m tunnel driving in test area.
Research on the Rate Control Scheme of Networked Control Systems
Authors: Kang Jun
Published: April 2011

The Quality of performance of Networked control system (NCS) depends on the quality of network service. To guarantee the limit of quality of network service of NCS, the mechanism of end-to-end rate control is applied to NCS. An novel end-to-end rate control scheme of guaranteeing minimal rate for each control loop of NCS is proposed. This scheme can guarantee to meet the requirements of quality of network service of NCS and show TCP friendly. Finally, the simulation results show that the proposed algorithm is effective.
A Real Option Model Suitable for Real Estate Project Investment Decision
Authors: Ke Xiao Ling , Diao Feng Qin , Zhu Ke Jun
Published: April 2011

Real estate investment is distinctively different from others with its high input capital, long period of recycling, huge fluctuation of house price and high sensitivity to other factors. The traditional decision method could not make a rational judgment of the flexible management value in real estate project investment. With regards to the policy and market features of real estate investment in China, a real option model suitable for real estate project investment decision under high uncertainty in China is constructed. At last, a case of a real estate company is studied to test the real estate investment decision model.
Energy Consumption and Economic Analysis to Residential Building Meeting the Criterion of 65% Energy Saving in Zhangjiakou
Authors: Ma Hong Lei , Niu Jian Hui
Published: April 2011

An energy saving residential building in Zhangjiakou was took as research object, which was designed and constructed according to the criterion of 65% energy saving of the third stage, utilizing simulation software Dest, which was developed by Qinghua University, energy consumption simulation and economic analysis were done to the building. The results show that compared with the former residence which was built according to the non-energy saving design, the implementation of new design standard for building energy saving can not only achieve better energy saving effect, but also its payback period is short, so the new design standard for building energy saving is worth spreading.
An Improved Realization of the Digital Multiplexer Based on Electric Power Carrier Communication
Authors: Liu Bin , Liu Hai Yan , Wang Fang , Lu Ming Jing
Published: April 2011

The electric power carrier communication is the special communicated way of electrical power system , one kind of double CPU, the low power loss, the low cost digital multiplexer has been designed in conducted the full research to this communicated way, which is satisfied the need of the electric power correspondence transmission system. In respect of hardware designing, dual-port RAM and double CPU are adopted for coordinating work and greatly improving efficiency; dual-port RAM , which functions as a shared mailbox of double CPU, is used to store markers, pointer and coordinate the work of double CPU.
Empirical Research on Top Management Incentive Mechanism and Performance of Companies
Authors: Yan Shao Bing , Lv Ting , Song Chun Qing , Zhu Wen Qi
Published: April 2011

This paper makes an examination on the sensibility between top management incentive mechanism and performance of listed companies by taking data of annual salary of the top management, shareholding ratio and performance of listed companies from 2006 to 2008, adopting systematic and empirical methods to state and analyze the related documents both at home and abroad in combination with the current situation and problems of salary of the top management and shareholding incentive mechanism in China. For the above empirical results, this paper in the end makes some proposes which is referable and instructive for future company rules and project of top management incentive mechanism.
Integration of Modern Information Technologies and Mathematics Teaching
Authors: Geng Hong Ling , Tian Meng
Published: April 2011

The application of information technology in mathematics teaching has been a main direction in mathematics course reform all over the world. The paper expounds the methods of integrating the modern information technology and mathematics teaching, discusses the value and principles of the integration of the two, and proposes the questions that should be paid attention to at the end of the paper. The increasing mature of information technologies and its wide application influence people’s living and learning method profoundly. Since modern information technology can transmit information on the network, and information is displayed in various ways and is stored conveniently, the value, goal contents and learning methods of mathematics education are influenced by it. Therefore, the integration of modern information technologies and mathematics teaching is the key element related to the improvement of college teachers’ information abilities.
Research on the Customer Equity Measurement of Banking Industry under the Condition of Mutative Demand Market Scale
Authors: Shao Jing Bo , Chen Ke Ke , Tang Gui
Published: April 2011

Existing customer equity(CE) measurement models presume that market demand scale is constant and without considering the influence of cross-purchases and propaganda of public praise, which is actually not in line with the market.Therefore,this paper puts forward a new measurement model of CE under the condition of mutative demand market scale.Then further apply this model to study the CE measurement of banking industry.Study results show that this model can make more accurate measurement of CE and is operable, so it can guide practice more effectively.
On Hybrid Impulsive and Switching Stochastic Systems
Authors: Pu Xing Cheng , Zeng Fan Hai
Published: April 2011

This article formulates and studies a model of Hybrid Impulsive and Switching Stochastic Systems (HISSS). Using integral Inequality、Ito Isometry、The Gronwall Inequality、Doob’s martingale Inequality and Borel-Cantelli Lemma, we has got a existing and unique result for HISSS. On the other hand, to the best of author’s knowledge, date up to now, seldom stability result has been arrived for HISSS. In order to fill this gap, p—moment asymptotic stability and p—moment exponential stability are considered. Some theorems on p—moment asymptotic stability and p—moment exponential stability of HISSS are established by using Lyapunov-Krasovskii function and stochastic analysis theory.
Multi-User Detection Analysis via Aitken-δ2 EM Acceleration Algorithm
Authors: Xian Jin Long , Li Jian Wu
Published: April 2011

The EM iterative algorithm is commonly used in recent years for missing data, which has the character of easy and popular applicability. But the EM algorithm has a fatal weakness that the convergence speed is slowly; Acceleration of the EM algorithm using the Aitken method is proposed in order to solve this problem.In Multi-user Detection, via this accelerated algorithm, we get a good performance which trends to ML performance, and compared its speed of convergence with the EM algorithm that Aitken-acceleration algorithm has faster convergence than the standard EM algorithm, and we also illustrate the performance of simulation.
Design and Simulation Analysis of Attachments for Fire Robot
Authors: Wang Xiao
Published: April 2011

This article is based on marching hydraulic pressure excavator, determine the manipulator and the mechanical arm’s plan through these movement in the actual situation request. Then the artical establish the robot mechanical arm and manipulator's simplified model on the two-dimensional blueprint, and according to design proposal preliminary establish rough plan, after finishing sketch design, we establish and assembly components model by PRO/E in the actual situation request, then we will have it stress analysised through ANSYS after making sure that there is no movement interference to guarantee the sizes of each part satisfy the request.
Detection and Correction of Linear Phase Error for Fourier Transform Spectrometer Using Phase Correction Method
Authors: Wang Cai Ling , Li Yu Shan , Liu Xue Bin , Hu Bing Liang , Liu Cai Fang
Published: April 2011

Idealy, an interferogram is an even function of the path differences; it suffices to computer the cosine Fourier transform of the interferogram from the zero optical path to the max to produce the spectrum. However, the interferogram is always asymmetry of the scanning function in reality. A method for the phase correction of interferograms in Fourier transform is presented. It is shown that phase error can be canceled to within an arbitrary angular precision by phase correction method. Three original spectrums are provided in which phase correction over a frequency range of 400nmto 1000nm,they are shown that using Phase Correction Method resulted in a error is less than those of the Mertz Method, and the purchased time is much less than the Mertz Method. The method can be used in most experiments, including emission spectroscopy, where conventional techniques are inadequate.
A Self-Adaptive Filtering Algorithm Based on Consistency QoS in CVE Systems
Authors: Hu Xiao Mei , Cai Hong Xia , Yu Tao
Published: April 2011

In the Collaborative Virtual Environments (CVE), there is a conflict between maintaining the state consistency and supporting more users sharing the virtual environment. A self-adaptive message filtering algorithm based on consistency QoS is proposed to improve both the consistency and scalability. Each user in the virtual environment has active workspace, influence area and dormancy zone according to the different requirement of consistency QoS. Time-space bounding sphere is defined to predict user’s active workspace to provide high consistency QoS. When two users’ time-space bounding spheres overlap, the key updates of two users are sent to each other in time to keep the state consistency. A self-adaptive threshold function model is used when two users’ influence areas overlap, which makes a tradeoff between consistency and scalability and provides a medium consistency QoS. Heart-beat packets are sent when two users’ dormancy zones overlap to filter messages in order to reduce the system traffic since the low consistency QoS is required. The results of traffic test and consistency QoS test in the experiment show that our algorithm can maintain the state consistency and reduce the consumption of network resources simultaneously.
An Improved Genetic Algorithm-Based Web Service Composition
Authors: Hao Long
Published: April 2011

In this paper a novel web service composition approach based on improved genetic algorithm is proposed. Firstly the relative vector is defined to represented the input and output parameters of user requirements and web services, by comparing the relative vectors, a composed service can be evaluated how much it match user requirements, thus the web service composition is transferred as a linear programming problem. Secondly an improved genetic algorithm is used to search optimum composite services. Compared with the existing approaches, this method supports dynamic service composition, bears component services with multiple input & output parameters, and enables inclusion of parallel and choice structure inside the composite services.
Coal Bed Methane Resources: Hazard and Exploitation
Authors: Yang Wei , Lin Bai Quan , Qu Yong An , Zhao Wu Qiang , Jiang Yong Ming , Wang Jian Li
Published: April 2011

This paper points out that the coal-bed methane can not only cause gas outburst and explosion, but is also the greenhouse gas. At the same time, methane is un-renewable clean energy. In order to exploit methane effectively, the numerical simulation method was used to investigate the stress distribution and evolution during the process of mining the upper protective coal seam. The results match well with the filed experiment. The result revealed that the stress drops significantly and the cracks are much more developed in the “core stress relieved area” within 10 m in front of the coal face and -30 m behind the coal face, where the methane extraction concentration is usually more than 60%. The results have important significance on methane exploitation.
Mining of Global Maximum Frequent Itemsets Based on FP-Tree
Authors: He Bo
Published: April 2011

As far as we know, a little research of mining global maximum frequent itemsets has been done. The paper proposed an algorithm for mining global maximum frequent itemsets based on FP-tree, namely, AMGMFI algorithm. AMGMFI algorithm makes computer nodes computed local maximum frequent itemsets independently with DMFIA algorithm, then other computer nodes exchanged data with the center node, finally, global maximum frequent itemsets were gained. AMGMFI required far less communication traffic by the search strategy of top-down. Theoretical analysis and experimental results suggest that AMGMFI algorithm is effective.
Gender Differences in E-Mail Communication
Authors: Fan Li Ping
Published: April 2011

Traditionally it is widely accepted that there are gender discrepancies in using language. Nowadays with the fast development of Internet and widespread use of e-mail, the problem is proposed whether gender differences in the real-word communication exist in the virtual-world communication. Through reviewing the current researches done by Paolo Rossetti, Robert Kraut and so on, it is found that the gender-specific communication does exist in E-mail communication. And then reasons are explored for the existence of the phenomenon. Through analysis, it is found that male and female try to extend their different roles in real world to the virtual world. Men try to use technology to further their influence while women use it to nurture and develop close relationships.
Study on Remote Distributed Fault Diagnosis System in Modern Agricultural Machinery
Authors: Sun Pei Feng , He Yong
Published: April 2011

A remote distribution based agricultural mechanical fault diagnosis system was proposed against the characteristics of high technology and difficult fault diagnosis in the modern agriculture and the time-sensitive requirements in agricultural production. The paper introduced the overall system architecture and working principle, analyzed the development of site monitoring and diagnostic system, remote diagnosis center, network communication systems, and software systems development, and investigated the system’s main implementation techniques, which include network database technology, data compression and transmission technology and system security technology.
GASD Based Relayout Method in Mass Customization Manufacturing Quality Assurance
Authors: Fan Shu Hai , Li Jin Hong , Catherine Amanda , Pan Mi Mi
Published: April 2011

Mass Customization is the most advanced production mode. In Mass Customization Manufacturing (MCM), facility relayout is needed frequently in an instant, costless, seamless and frictionless mode. Three kinds of production line layouts are brought forward which are probably suitable for the MCM. These three types are the child production lines type, the C-shape lines type and the flower type, whose nature characteristics (the optimization of weak coupling relations) are also analyzed. Using a Genetic Algorithm with Sex Differentiation under the concept of quality loss, its model in MCM is built. Then a real small MCM production line in our lab and its digital model in e-Factory are described. Finally, the algorithm was integrated in the model and a petal type production line layout was implemented in a QUEST based simulation system.
Research on Exact Minkowski Sum Algorithm of Convex Polyhedron Based on Direct Mapping
Authors: Geng Qing Jia , Guo Xi Juan , Zhang Ya
Published: April 2011

Minkowski sum has become an effective method in collision detection problem, which is a branch of computation geometry. Separated from the previous algorithm based on the traditional Gaussian Map, a new algorithm of computing exact Minkowski sum of convex polyhedron is proposed based on direct mapping method in the paper, and the correctness of direct mapping method is testified. The algorithm mapping the convex polyhedron into the bottom of regular tetrahedron according to the definition of Regular Tetrahedron Mapping and Point Projection, so the problem become form 3D to 2D. Comparing with the previous algorithm, the algorithm posed in the paper establishes mapping from 3D to 2D directivity, and only compute the overlay of one pair of planar subdivision. So, the algorithm’s executing efficiency has been improved in compare with the previous algorithm.
Suggestion of Introducing the Human Reliability into Dam Risk Analysis
Authors: Li Dan Dan , Li Lei
Published: April 2011

Now human error has caused lots of accidents of dam break, but there is no direct method to calculate the probability of human error in dam risk analysis. So the paper invite the suggestion of introducing the human reliability into dam risk analysis, which can perfect the dam risk theory. It used improved HCR(Human Cognitive Reliability) method to calculate human reliability of dam risk, but the concrete parameters need further research combined with engineering practice.
Research on Moving Human Positioning in Complex Background Video
Authors: Zhang Xin , Wang Xiao Tao , Wang Bing , Gao Yue Hua
Published: April 2011

Human Skin Color(HSC) features have been widely used in video moving human positioning. However, in complex background video sequences, due to illumination changes or other moving objects which have similar HSC regions, the effect of moving human positioning is not satisfactory. A new method of moving human positioning applied on complex background video sequences is presented in this paper. Firstly, brightness information of the video sequence images is detected and analyzed based on HSV color model. Secondly, adopt the multi frame subtraction method to extract the moving object regions from motionless background. Then, the regions with distinctive HSC features are separated from other moving objects using the data fusion model of HSC and brightness information. Finally, identify human object among regions with HSC features according to the prior knowledge of human. The experimental results show that the method provided in this paper is effective in moving human positioning of complex background video, and has the strong illumination change adaptability and anti-jamming ability.
The Integration of Wireless Location Technology and GIS in the Logistics Information System and its Application
Authors: Feng Feng , Hou Sheng Yu , Xu Qi
Published: April 2011

With the rapid development and integration of Mobile communications, Internet and GIS technology, as well as the diversity of market demand, the commercialization of wireless location business process was accelerated. With the development of logistics information system, the combination of wireless location technology and logistics are increasingly closed. In this paper we introduced several kinds of popular wireless positioning technology, analyzed many factors which the operator selection of these technologies need to considered, and then discussed the necessity of combing the wireless location technology with GIS technology, and provided the architecture of system integration. Finally, the paper summarized the integration system in logistics of some typical application.
Finite Element Analysis of Slider in High-Speed Horizontal NC Center
Authors: Cong Ming , Han Tao , Zhao Qiang , Lan Tie Jun , Ju Xiu Yong
Published: April 2011

Slider is one of the most important parts in High-Speed Horizontal Machining NC center, it plays a great role in the performance of static and dynamic. In order to assure the working accuracy and dynamic characters, slider must be analyzed to verify the reasonable of original design. According to the structure of slider and based on the theoretical and finite element simulation analysis method, a more reasonable boundary condition is carried out. To be noted that in this paper a method using the conception of combination is introduced. On the other hand the counterforce can be more accurate than before and it makes the following analysis easier.
A Novel Approach of Face Detection Based on Skin Color Segmentation and SVM
Authors: Zhang Jing , Li You
Published: April 2011

Nowadays, face detection and recognition have gained importance in security and information access. In this paper, an efficient method of face detection based on skin color segmentation and Support Vector Machine(SVM) is proposed. Firstly, segmenting image using color model to filter candidate faces roughly; And then Eye-analogue segments at a given scale are discovered by finding regions which are darker than their neighborhoods to filter candidate faces farther; at the end, SVM classifier is used to detect face feature in the test image, SVM has great performance in classification task. Our tests in this paper are based on MIT face database. The experimental results demonstrate that the proposed method is encouraging with a successful detection rate.
A Weighted Scale-Free Network with Triad Formation
Authors: Li Shu Liang , Wang Dan , Zhang Le
Published: April 2011

We propose an evolutionary model for weighted network according to characteristics of real-life network, and the weighted model integrates the triad formation and the preferential mechanism. The two mechanisms provide a wide variety of scale-free behaviors depending on the parameter that govern the new nodes and new links growth. The model gives power-law distributions of degree, weight, and strength. In particular, the average strength displays scale-free property , , as confirmed in many real networks. While in BBV weighted model, the scaling exponent . This implies that the strength of nodes grows faster than their degree. This denotes a strong correlation between the weight and the topological properties in the model, which can be considered as a meaningful development of weighted network model.
The Algorithm for Constructing Software Cost Estimation Model Based on Rough Set
Authors: Huang Long Jun , Wang Feng Bin , Wei Yuan Wang
Published: April 2011

Software cost estimation is a very important activity in software development, but the existing methods can not do it accurately. In particular, various methods are based on the data of some mature companies. As a result, they can’t be applied to many small- and medium-sized enterprises (SME) and can not meet the demands of the increasingly refined industries. Based on rough set theory, an algorithm generating from a structured cost estimation model is proposed in this paper. Taking advantage of rough set theory which can analyze and reason the data, some tacit knowledge is discovered and the characteristics of some potential laws are revealed, thus improving the accuracy of cost estimation and meeting the demands of general businesses.
Study on the Formation and Evolvement Mechanism of the Knowledge Service Network in the Agile Supply Chain
Authors: Wang Dao Ping , Zhou Ye , Wang Yun Zhu
Published: April 2011

Knowledge service network, a new mode of knowledge symbiosis in the agile supply chain, emphasized the main body of knowledge service and knowledge requirement in the network, and provided the more specialized, marketed and individual knowledge service. Expatiated the related concepts of the Knowledge Service Network in the Agile Supply Chain (KSN-ASC), analyzed the composition and network mode of the KSN-ASC, and reckoned the push of the exterior environment and the pull of the organization interior requirement as the main reasons of the formation and development of the KSN-ASC. Furthermore, it analyzed the evolvement from knowledge sharing, knowledge chain, knowledge network to knowledge service network of the agile supply chain, which can better comprehend the formation and development of the KSN-ASC.
Efficient Associative Memory Based on a Nonlinear Function Constitution and Dynamic Synapses
Authors: Xia Min , Zhang Ying Cao , Ye Xiao Ling
Published: April 2011

Nonlinear function constitution and dynamic synapses, against spurious state for Hopfield neural network are proposed. The model of the dynamical connection weight and the updating scheme of the states of neurons are given. Nonlinear function constitution improves the conventional Hebbian learning rule with linear outer product method. Simulation results show that both nonlinear function constitution and dynamic synapses can effectively increase the ability of error tolerance; furthermore, associative memory of neural network with the new method can both enlarge attractive basin and increase storage capacity.
Control of Catalytic Divided Wall Column
Authors: Sun Lan Yi , Qi Cai Xia , Li Jun , Li Qing Song
Published: April 2011

A control strategy which is based on the Catalytic Divided Wall Column (CDWC) for hydrolysis of methyl acetate (MeAc) is studied and a feasible control structure is obtained. The manipulated variables and controlled variables are selected and paired. Two kinds of disturbances are employed to test this control configuration and the result shows that a simple PI control scheme with three temperature loops can obtain reasonable control performance and maintains the desired purity of two products and stoichiometric balance between reactants.