bluuebunny/crossref_metadata_2025 huggingface dataset:
Study on Mass and Thickness Measurement of Chicken Meat Using X-Ray Image
Authors: Zhao Jin Hui , Liu Mu Hua , Shen Jie , Tu Dong Cheng , Yu Fang
Published: November 2010

The mass and thickness measurement of chicken meat were investigated using X-ray image in the paper. The relation model between pixel value of X-ray image and thickness of chicken breast was established using the exponential fitting and the exponential fitting equation is y = 2610.2e-0.0283x. The relation model between pixel value of X-ray image and average mass of chicken breast was established using the exponential fitting and the exponential fitting equation is y =0.3575e-0.0308x. The experimental results showed that the modeling regression coefficient and predicted regression coefficient for thickness measurement were 0.9604 and 0.976, respectively. The modeling regression coefficient and predicted regression coefficient for mass measurement were 0.844 and 0.881, respectively.
Texture Classification Research Based on the Logarithmic Polar Coordinates Transform and Support Vector Machine
Authors: Gao De Cheng , Liu Bin , Wang Jian Guo
Published: November 2010

In this paper, we have investigated an approach based on log-polar transform and support vector machine (SVM) for texture classification. Firstly, we convert rotation into translation, which reduced the effect of rotation and scale changes using the characteristics of logarithm Polar transformation. Then we extract texture feature after eliminating translation using smooth discrete wavelet transform (SWT) with translation invariant. Finally, support vector machines(SVM) are adopted to the texture classification. The experiment results show the proposed approach can get improved results for texture classification.
Risk Assessment of Geological Hazard in Wudu Area of Longnan City, China
Authors: Liang Shou Yun , Wang Yun Xing , Wang Yu
Published: November 2010

Risk assessment of geological hazard is the study of damage degree of human life and property affected by the geological disaster. It is of great importance for reducing harm level of geological hazard fatalness, preventing and controlling of geological disaster. As an example in Wudu area of Longnan City, we choose topography, lithology, meteorology, hydrology and human activity as the hazard assessment factors, on the basis of detailed investigation of geological conditions in study area. Then, adding the importance of the residents activity area as a risk assessment factor, we have finished the geological hazard assessment and its risk assessment by GIS combined with AHP. The result shows that the proportions of geological hazard risk of non-risk, low-risk, medium-risk and high-risk area are respectively 31%, 14%, 25% and 30%.
Two-Dimensional FIR Filter Design on Wideband Speech Enhancement in Microphone Array
Authors: Su Xiao Fei , Zhang Xin Hong
Published: November 2010

Due to complexity of sound environment, the performance of speech enhancement is degraded greatly based on traditional beam-forming when directivity of arrival of sound and number of sound are not been estimated precisely. In this paper, according to characteristics of handle-communicated equipment, a method on suppression of environmental noise and disturbance is provided. Beam-forming on speech wideband in desired angle is realized by designing a two-dimensional FIR filter which has fan structure in pass-band and wedge-shaped structure in transition-band. The filter can suppress noise and disturbance out of main-lobe desired. The simulations demonstrated that the filter designed is effective.
Experimental Measurement of Wind Velocity Fluctuation and its Influences on Sand Particle Trajectory
Authors: Wu Jian Jun , He Li Hong
Published: November 2010

The wind flow, the main driving force of sand movement, has already been known for its random fluctuation characteristics especially in the boundary layer. An experimental test for the wind velocity fluctuation is conducted for naturally mixed sands with a wind profiler in a field wind tunnel. On the basis of the experimental data, a fitting form of an empirical formula for the wind velocity fluctuation in the horizontal direction is obtained. After that, the influences of the wind velocity fluctuation are simulated on the particle trajectories, which demonstrate that the fluctuating velocity of the wind has greater influences on the trajectories of the particles with smaller diameter. The trajectory forms of the smaller sand particles, computed from the instantaneous velocity, might be in continuous saltation or even suspension besides smoothing parabola forms, which are obviously different from those computed only from the average velocity of the wind. For the particles with larger diameter, all the trajectories are almost the same in smoothing parabola forms under both fluctuating velocity and average velocity of the wind.
Design of Anti-Disturbance H∞ Controller of Automotive Electric Power Steering System
Authors: Geng Guo Qing , Long Chen , Zhao Jing Bo
Published: November 2010

Automotive EPS controller is easy to be affected by the parameter perturbations, road agitations, sensor noises and the lateral wind disturbance in the process of vehicle operation. These uncertainties affect the accuracy of assist current, the EPS performance and the driving safety. The mathematical model of EPS system was established including the internal uncertainty and external disturbance. The LFT linear fractional transform representing model and M matrix with stripped uncertainty were designed. The robust H∞ controller and weight function were designed according to the H∞ control theory and performance indexes of EPS system. The comparative performance with PD controller was made. The results showed that the H∞ controller had better robustness and robust stability than the PD controller. It also had great anti-disturbance performance to satisfy the performance requirements of EPS system.
Multi-Granularity and Many-to-Many Associative Memory Based on Incidence of Patterns
Authors: Yang Guo Wei , Yu Xiao
Published: November 2010

The study of many-to-many associative memory models have obtained some achievement. The present many-to-many associative memory models can not carry out the multi-granularity association. In this paper, a kind of multi-granularity many-to-many associative memory model based on incidence of patterns is proposed by use of introducing logic calculation network and granularity control network. The model can control the granularity of output and carry out multi-granularity association
Application of Probabilistic and Interactive Information in Verifying Machine System and Kernels Based on Relational Modality
Authors: Qu Zhi Ming
Published: November 2010

The networking approach to the World Wide Web is defined not only by the exploration of architecture, but also by the confirmed need for interrupts. Given the current status of authenticated archetypes, steganographers dubiously desire the analysis of scatter/gather I/O. the focus in this position paper is not on whether Moore's Law can be made concurrent, distributed, and pervasive, but rather on proposing an analysis of 32 bit architectures (Grange). Using the probabilistic and interactive information, the machine system and kernels are verified based on relational modality, which is proved to be very practicable.
Multiway Temperature and Humidity Measurement System
Authors: Chen Xiao
Published: November 2010

Temperature and humidity is the important physical quantities within the measurement field. Separated temperature and humidity sensors commonly used are nonlinear output and less consistently, resulting that temperature and humidity measurement methods are relatively complex. This paper presents a multi-channel temperature and humidity monitoring system with SoC MCU. It consists of microprocessor, temperature and humidity sensors, display circuit, keyboard input module, communication interface module, voice playback module and other components. The digital sensor SHT21 collects temperature and humidity information and send into SPCE061A MCU. The system has real-time LCD display and voice broadcast function. If the temperature and humidity exceed the set range, an alarm will be given. Microcontroller transfers measurement data to the computer through USB-UART converter circuit with SPCP825A and MAX232 chips. Real-time temperature and humidity changes are dispalyed and recorded on computer. The system has a simple structure, low power consumption, cheap cost, small volume and good prospects.
Multiway Responder with Wireless Communication Technology
Authors: Chen Xiao , Yao De Xin
Published: November 2010

Responder as an electronic product have been widely used in intelligence and knowledge competitions occasions. This paper developed a multiway responder with wireless communication technology. Its components, function, working principle and interface with microcontroller programming were described in detail. It consists of six modules - competition answer module, answering signal receiver module, SCM system, enactment module, display module, voice prompt module. It uses wireless transceiver chips FSK-2A/CZS-3 for short-range wireless data transmission. It uses codec chips PT2262/PT2272 for data encryption and decryption. It uses AT89S52 microcontroller as the core controller. Simulation by protues software well achieved the expected results. The designed responder is not only simple and easy to implement, but also practical and cheap.
A Wireless Sensor Network Route Algorithm for Mine Environment
Authors: Qiao Gang Zhu , Zeng Jian Chao
Published: November 2010

The routing protocol which can meet the requirement of underground wireless sensor network plays a decisive role in improving the monitoring quality and the survival time of network. Because of the different energy supplement method of anchor nodes and unknown nodes, these two types of nodes are different energy levels, which determines that the task of the data forwarding should be completed by the blind node as far as possible. By combining the position information and cluster routing technology, a position-based cluster routing (PBCR) protocol is proposed. In the protocol the tunnel is divided into a number of regions and the nodes within the region form a cluster. The protocol chooses the blind node nearest to the base station in the region as cluster head and builds up the chain between the cluster heads as the network data transmission backbone which can help achieve the high-speed data transmission. Simulation results show that the PBCR protocol can ensure a balanced use of node energy and prolong the life cycle of the network.
Complementary Pass-Transistor Adiabatic Logic Using Dual Threshold CMOS Techniques
Authors: Lu Bin Bin , Hu Jian Ping
Published: November 2010

With rapid technology scaling down, the energy dissipation of nanometer CMOS circuits is becoming a major concern, because of the increasing sub-threshold leakage in nanometer CMOS processes. This paper introduces a dual threshold CMOS (DTCMOS) technique for CPAL (complementary pass-transistor adiabatic logic) circuits to reduce sub-threshold leakage dissipations. The method to size the transistors of the dual-threshold CPAL gates is also discussed. A full adder using dual-threshold CPAL circuits is realized using 45nm BSIM4 CMOS model. HSPICE simulation results show that leakage dissipations of the CPAL full adder with DTCMOS techniques are reduced compared with the basic CPAL one.
Fatigue Analysis of Diesel Engine Connecting Rod Based on Finite Element Method
Authors: Fan Xin , Pan Mao Hui , Zhang Cheng Song
Published: November 2010

Connecting rod fatigue in a certain type of diesel engine is analyzed by using finite element analysis method and the FEM software ANSYS. According the actual working conditions, the three-dimensional model with multi-body contact is established to simulate the contact between the connecting rod parts; By using APDL language programming, the work load on the connecting rod, calculated according all the link work loads, is applied to the connecting rod bearing and bushing through the oil film pressure distribution. By finite element method structural strength of the connecting rod was calculated, that can effectively guide the connecting rod design, which has been proved by practice.
A New Method of Multiple Factors Analysis of Cell Coverage Based on GIS
Authors: Lan Li Na , Gou Xue Rong , Xie Yun Han , Wu Meng
Published: November 2010

In mobile network, cell coverage analyses are vital to network optimization. The traditional check method is road testing by manpower which costs much time and resources. This paper presents a multiple factors analysis method of cell coverage, and designs the relevant system based on GIS platform. Based on a huge number of mobile measure data in OMC, this method derives a cell coverage analysis chart and identification of the problem cells by analyzing multiple factors such as signal level distribution, sample point distribution, category of interferences, neighborhood relationship, and azimuth ward and so on. The calculation and analysis results are presented in map based on GIS platform. This method and system are validated by a large number of actual datasets from an in-service GSM network.
Computer-Aided Design of Curved Assistance Characteristic of EPS System
Authors: Zhou Bing , Bei Shao Yi , Zhao Jing Bo
Published: November 2010

The control strategy is one of the key technologies of EPS system, and the assistance characteristic has great importance to the vehicle handiness and road feeling. Based on the EPS dynamic model, the curved assistance characteristic is designed. The curved assistance characteristic has the superiority to find the better balance between handiness and road feeling. It has engineering significance to the overall design, function enhancement and optimization and steering manipulation and safety improvement.
Leakage Reduction of P-Type Logic Circuits Using Pass-Transistor Adiabatic Logic with PMOS Pull-up Configuration
Authors: Jiang Jin Tao , Ye Li Fang , Hu Jian Ping
Published: November 2010

Leakage power reduction is extremely important in the design of nano-circuits. Gate leakage has become a significant component in currently used nanometer CMOS processes with gate oxide structure. The structure and operation of the PAL-2P (pass-transistor adiabatic logic with PMOS pull-up configuration) circuits that consist mostly of PMOS transistors are complementary to PAL-2N (pass-transistor adiabatic logic with NMOS pull-down configuration) ones that consist mostly of NMOS transistors. This paper investigates gate leakage reduction of the PAL-2P circuits in nanometer CMOS processes with gate oxide materials. An s27 benchmark circuit from the ISCAS89 sequential benchmark set is verified using the PAL-2P scheme. All circuits are simulated with HSPICE using the 65nm CMOS process with gate oxide materials. Based on the power dissipation models of PAL-2P adiabatic circuits, active leakage dissipations are estimated by testing total leakage dissipations using SPICE simulations. The PAL-2P circuits consume low static power compared with traditional PAL-2N ones.
Robust Absolute Stabilization of Time-Varying Delay Systems with Maximum Admissible Perturbed Bound
Authors: Jin Jie
Published: November 2010

This paper is concerned the problem of robust absolute stabilization of time-varying delay systems with admissible perturbation in terms of integral inequality. A linear state-feedback control law is derived for one class of delay systems with sector restriction based on linear matrix inequality (LMI). Especially, this method does not require input terms are absolutely controllable for nonlinear delay systems. Numerical example is used to demonstrate the validity of the proposed method.
An Exact Algorithm for 3-Biclique Vertex Partition
Authors: Liu Pei Qiang , Zhu Da Ming , Xie Qing Song , Xiao Jin Jie
Published: November 2010

The paper aims to study the problem of biclustering for gene expression data, which arises in the program of characterizing DNA clone libraries, especially in the oligonucleotide fingerprinting of ribosomal RNA genes method. Gene expression data are arranged in data matrices. The goal of biclustering is to find a submatrix, i.e., subset of rows and a subset of columns. If each element of a matrix is 0 or 1, biclustering is closely related to finding bicliques in a bipartite. The k-BVP (short for k biclique vertex partition problem) is to decide whether the vertices of a bipartite can be partitioned into k groups, and each group induce a biclique. 2-BVP can be solved in polynomial time, but it is an open problem whether or not k-BVP is in P for all k3. On the one hand, present an O(2|V|-3) algorithm to decide whether or not a bipartite graph contains a 3 biclique vertex partition. On the other hand, give an algorithm to produce simulation data. The testing results show that the algorithm can find a 3-BVP of a bipartite if there exist a 3-BVP in the bipartite.
Fuzzy Aggregation Queries in Relational Databases
Authors: Ye Xiao Ling , Wang Hui , Chen Yi Fei
Published: November 2010

Much of the existing work on fuzzy queries in relational databases has focused on simple queries, compound queries, multi-relational queries, sub-queries with weights etc. What has received less attention, however, is the fuzzy aggregation querying. In this paper, this kind of fuzzy queries is dealt with. The general forms of fuzzy aggregation queries are presented and the corresponding algorithms are also proposed. Weights are introduced into fuzzy aggregation queries. The calculations of these queries are illustrated by examples in detail.
Optimization of T-Tree Index of Main Memory Database in Critical Application
Authors: Zhu Zhi Lin
Published: November 2010

One approach to achieving high performance in the DBMS in the critical application is to store the database in main memory rather than on disk. One can then design new data structures and algorithms oriented towards increasing the efficiency of the main memory database -MMDB. In this paper we present some results on index structures from an ongoing study of MMDB. We propose a new index structure, the T-tail Tree. We give the main algorithm of the T-tail Tree and the performance of these algorithms. Our results indicate that T-tail Tree provides good overall performance in main memory.
Construct and Perfect the System of China’s Energy Policy
Authors: Li Jin Kai , Yang Li , Ji Xi
Published: November 2010

Based on sustainable energy development strategy，this article has a deep research on the energy policy and the corrective measure from five aspects such as energy demand, consumption, energy supply, energy reserves, energy structure and energy system. The article points out our country should establish the national economic system of energy conservation and the environmental protection，diversified energy supply system，energy reserve system includes of material object reserve, habitat reserve and technological strength. The author also indicate that the energy policy should initiate the energy structure optimization positively. Finally, the article puts forward the policy proposal to our country energy management system, the energy pricing economy, the investment system, the legal framework.
A Microstrip to Rectangular Waveguide Transition Using Coupling Loop in Millimeter-Wave Band
Authors: Han Jiang An , Xu Jun
Published: November 2010

A novel millimeter-wave transition from microstrip to rectangular waveguide is introduced in this paper. The theory for this design is explained. The strip conductor on microstrip, which is introduced from the center of a rectangular waveguide broad-wall to its E-plane, is shaped into a triangular loop in the waveguide terminated by a short circuit. A back to back transition operating at Ka band was simulated and fabricated. The experimental results showed the insertion loss of a back to back transition is less than 2.2dB with its return loss greater than 9.1dB from 26.5 GHz to 35.5 GHz.
Research on Intelligent ECU for Engine Based on CAN
Authors: Liu Jian Hui , Ji Chang Peng , Gao Mo
Published: November 2010

As the core of automotive engine control system, carrying out intelligence research for ECU’s own intellectual property rights is necessary. In the foundation of combining domestic actual and analysis and summary to the existing system, we propose the design proposal of motor car engine intelligence electron controller based on CANBUS, and exposit how the factors of human, automobile, environment and so on to be coordinated to achieve optimal performance of overall system. By computer communication and network technology, seamlessly integration of GPS navigation system, radio telephone and bus distributed network can be realized, which enables the entire automobile electron system have the ability of data fusion, failure diagnosis and certain self-repair ability. ECU has huge potential commercial profit, because it uses field bus technology so that cable quantity in automobile was reduced greatly, and the field bus uses pure digital technique so that many measuring appliances and equipments can be connected on single electric cable to transmit more information, in addition, it has stronger interference immunity, lower cost of installment, running and maintenance. This system can coordinate with transportation automatic monitoring visual system, and it’s the key link to realize intelligence transportation system.
OPNET-Based Computer Simulation of MPLS VPN Security Solutions
Authors: Fan Ya Qin , Fan Hao , Sun Chao
Published: November 2010

This paper features of IPSec and MPLS technologies, proposes a suitable MPLS VPN security solutions. The program to solve the VPN using MPLS backbone network in the public transport there is a second layer of information can not automatically encrypt, or connect easily made because of errors due to the interruption of information disclosure and other issues. To verify the proposed security program, the actual MPLS VPN can be simplified, abstracestablishing a simulation system MPLS VPN, and using OPNET simulation software simulation, simulation results of VPN officers practical reference value.
Study of Adaptive Routing Method in Peer-to-Peer Network
Authors: Fan Den Ming , Zhu Qi
Published: November 2010

This paper aim To analyze and discuss a Query-based Routing Method in P2P network (QRM) , In this algorithm,the node records the received query and the nodes that can answer the query very well,in these nodes, Simulation experiments demonstrate that the method can enhance the searching efficiency very well with the number of queries becoming more and more.
Wind Farms Real-Time Supervisory Information System Based on MapGuide
Authors: Zhang Bao Feng , Chang Xiao Kun
Published: November 2010

According to the requirements of wind farms real-time supervisory information system, a WebGIS with Browser/Server (B/S) architechture is developed based on MapGuide to implement wind farms supervisory information system. It has the functions such as map browse, roaming,.dynamic appending data, real-time display and so on, thus achieving 0-4 hours super-short-term accurate prediction of wind power.
The Research and Improvement of Routing Protocol in Adhoc Network
Authors: Chen Xiao Yun , Liu Guo Hua , Yao Yu Kai , Su You Li , Li Long Jie
Published: November 2010

An ad hoc network is a dynamically wireless mobile network. It can construct network automatically and quickly. Because of the importance and universality of application, ad hoc network is trend to become a research hotspot. It is necessary to research an effective routing protocol so as to be adapted to mobility of terminal equipment and to provide the reliable data transmission. This paper firstly studied and analyzed existed routing protocols, and simulated these protocols. Finally we proposed an improved routing protocol based on DSR and AODV, in which we divided all nodes into different clusters, and every cluster has only one cluster head. These nodes within the same cluster communicate using DSR protocol while those nodes in the different cluster communicate through the cluster head using AODV protocol. So, the data packet can go through the shortest link, thus it can decrease transmission delay and reduce energy consumption remarkably. Finally we use the network simulation software named NS2 to simulate experiment result. The results show that this protocol can improve the performance and the service quality of the network.
Applications of Laser Underwater Communication on Diving Operation
Authors: Li Chang Chun , Wang Zhi Guang
Published: November 2010

SCUBA diving is popular used ,while its safety is not ensured as underwater communication can not be established, in order to improve the safety of scuba diving ,here through the study on features of different ways of underwater communication, we think that the laser underwater communication is best way .
The Research of Operation Model for Electronic Contract Services Platform
Authors: Wang Xin , Sun Jing
Published: November 2010

Electronic contract platform based on electronic signature technology effectively compensates for the defects of traditional paper contract, reduces the human, material and financial expenditure and improves working efficiency, which has become a new profit growth point of the enterprises. It meets the needs of fast-paced business mode and promotes supply chain operations. Comprehensive research on operation model foe Electronic contract services platform is discussed in this paper.
Research of Zero-Cross Modulation Technology
Authors: Chu Yong Li , Chen Yong Li
Published: November 2010

The zero-cross modulation technology is a communication technology for distribution network, different from the traditional distribution network power line carrier communication technology. Its basic principle is to use the TWACS of the power frequency voltage fundamental wave to realize the signal transmission, and the modulation signal frequency is low It can be long-distance communication across the transformer. The data reliability and data through rate are high. It has broad application prospects in real-time communication less demanding situations. This paper first introduces the principle of the zero-cross modulation technology, and then details the generation and the identification of the voltage modulation signal. Practice shows that the transmission success rate of zero-cross modulation signal is up to100%. Meet the actual needs.
A Multimedia System Based on OMAP3530
Authors: Cui Yuan , Li Bo Nian
Published: November 2010

JPEG images decoded and encoded rapidly and effectively based on OMAP3530 chip. USB camera deployed as images’ acquisition equipment, and used the ARM + DSP multi-core OMAP3530 processor as image decode-encode processing chip. The results sent to the user interface ultimately. System’s development was based on DVSDK. The result proved system fast than others.
Design on a Single Sign-On Scheme
Authors: Lei Wen , Liang Xing Jian , Zhang Hong
Published: November 2010

In practice, the single sign-on system is likely to suffer password attack and replay attack, etc. For the purpose of resolving these problems, a new single sign-on scheme is raised, which is based on dynamic password method. In the new scheme, a specific design is given, and the security of this scheme is analyzed in details. In this scheme, through the universal dynamic password authentication, the user can visit all the services in the visiting range. At the same time, the scheme implements the connect authentication between the client and application servers.
A Novel Method for Fatigue Detection Based on Fuzzy Logic
Authors: Dong Huai Lin , Chen Wei Jin , Wu Qing Feng
Published: November 2010

The problem of fatigue is becoming one of the factors impacting on the working and studying people. Therefore, how to detect whether the people are tired simply and effectively is paid attention to by more and more researchers. A novel method of fatigue testing based on fuzzy logic and image processing is proposed in this paper. Firstly, positive map and side elevation are extracted through camera device. Then motion detection determined to locate human faces and the frequency of eyes opening and closing is derived by using image processing techniques. Finally the angle between the head and the shoulder is calculated combined with a representation of time function and a fatigue threshold is set up. All of these are determined to estimate the degree of fatigue. Experimental results show that, the method can quickly detect the degree of fatigue simply.
Research on Traditional Manufacturing Upgrading in Yantai City Based on Informatization Theory
Authors: Yang Xue Kun
Published: November 2010

There exists relationship of mutual benefit and interaction between informatization¬ and the traditional industrial upgrading. Penetration of information technology can promote sustainable development of traditional industry, so as to carry out industrial structure upgrading. We should transform traditional manufacturing of Yantai by informatization and build up the new industry system which has international competitiveness. The key is to strengthen system innovation, information technology innovation, and dominant industries informatization and supply chain management informatization.
Image Registration Based on Feature Points Krawtchouk Moments
Authors: Hui Fan , Wang Hai Feng , Li Jin Jiang
Published: November 2010

An image registration based on feature points Krawtchouk moments is proposed. Moments are the shape descriptors based on region. Krawtchouk moments are a set of discrete orthogonal moments and are more suitable for describing two-dimensional images compared to Zemike, Legendre moments. In the image registration based on feature points Krawtchouk moments, Krawtchouk moment invariants of the feature points neighborhood that have been extracted are solved, and then these Krawtchouk moment invariants constitute feature vectors used to describe the feature points, finally feature points are matched by calculating the Euclidean distance of feature vectors. The results of experiments show that Krawtchouk moment is simple and effective to describe image and is independent of rotation, scaling, and translation of the image.
Image Denoising Algorithm Based on Dyadic Contourlet Transform
Authors: Hui Fan , Wang Yong Liang , Li Jin Jiang
Published: November 2010

This paper constructs a dyadic non-subsampled Contourlet transform for denoising on the image, the transformation has more directional subband, using the non-subsampled filter group for decompositing of direction, so has the translation invariance, eliminated image distortion from Contourlet transform’s lack of translation invariance. Non-subsampled filter reduces noise interference and data redundancy. Using the feature of NSCT translation invariance, multiresolution, multi-direction, and can according to the energy of NSCT in all directions and in all scale, adaptive denoising threshold. Experimental results show that compared to wavelet denoising and traditional Contourlet denoising, the method achieves a higher PSNR value, while preserving image edge details, can effectively reduce the Gibbs distortion, improve visual images.
Research of Ontology-Based Coal Enterprise Knowledge Management Model System
Authors: Liu Xin Rong , Yang Guang
Published: November 2010

To facilitate the share and reuse and effective retrieval of knowledge, an ontology-based knowledge system model was presented focusing on the coal enterprises application. Coal ontology was introduced to represent domain knowledge and solve semantic heterogeneity problems. These practices provide experience for further implementation of enterprise knowledge management system. The paper describes the structure of knowledge management system which has the competitive power in the market competition.
Study on the Expended-Enterprise Information Portal Based on the Role Control Theory
Authors: Gao Qun
Published: November 2010

Adopting the role-based access control solution, this paper focuses on the study of access level, the most important part of the enterprise information portal. In this paper, the original RBAC model was modified, methods such as domain and permission levels are applied to simplify and improve the access control, reducing the computation; client-side cache is adopted to improve the performance of the access control system. Finally, this paper uses the development of the portal modules to increase information portal functions, so that the needs of different users can be met.
Identity Management Architecture: Paradigms and Models
Authors: Cao Yuan , Yang Lin , Fu Zom Bo , Yang Feng
Published: November 2010

This paper provides an overview of identity management architecture from the viewpoint of paradigms and models. The definition of identity management architecture has been discussed, paradigms are classified by the development stage and core design principle transmission of the architecture which include network centric paradigm, service centric paradigm, and user centric paradigm; models are grouped by components varying and functions changing to isolated model, centralized model, and federated model. These paradigms and models have no collisions among them for they are views of identity management from different viewpoint.
Analysis of Speed Servo System of Pneumatic Manipulator Based RBF Neural Network PID Control
Authors: Luo Jing , Yuan Rui Bo , Yuan Yu Bi , Ba Shao Nan , Zhang Zong Cheng
Published: November 2010

Through analysis and comparison of simple PID control and RBF neural network-PID hybrid control of the pneumatic servo system, then compared the stability and quick response under the two control system. Concluded that RBF neural network-PID hybrid control has better stability and fast response than the simple PID control.
Test and Analysis of Exhaust Pollutants from Automobiles Based on GPS Technology
Authors: Xian Ming Li , Yong Qing Huang
Published: November 2010

Taking the actual running vehicles on the urban roads of Ningpo City as the object of study, by using the brand-new on-vehicle automobile exhaust real-time testing system, and through actual testing by tracking the running vehicles and real-time data gathering, The paper analyzed urban road operating conditions, the vehicle emission situation on the actual roads, obtained the relations between the operating conditions, the speed and emissions and the law by which the automobile operating conditions affect the automobile exhausts.
Study on Enhancing the Strength and Life of Mining Flat Type Chain Connector Units Based on CAE
Authors: Mao Jun , Li Wei Kang , Li Jian Gang
Published: November 2010

ANSYS finite element software was utilized to simulate contact non-linear finite element analysis of chain connector for enhancing the structure strength and working life and productivity and manufacture craftwork of the existed ladder-type chain connector. Static and dynamic experiments were carried on several samples to test the broken positions of the chain connectors. The simulation results show that the main part of stress concentration is in teeth roots; experimental results also show that the teeth roots are the fragile parts in the chain connector. So experimental results conform to the results of simulation, it is reasonable for the simulation of contact non-linear finite element analysis of chain connector by ANSYS software. Then a structure of cambered surface tooth is promoted to enhance the strength and life of teeth parts, and petal-type clamps structure is adopted, that can carry out volume-producing to improve the productivity and processing precision.
Modeling Flight Dynamics of Tactical Missile with Morphing Wing
Authors: Zhang Gong Ping , Duan Chao Yang , Liao Zhi Zhong
Published: November 2010

Morphing wings for winged tactical missile are gaining increasing concern for their potential to improve flight performance. However, morphing wings bring some new challenges to modeling flight dynamics due to movable components. This paper develops a set of complete nonlinear model, where some additional inertial terms are included. These terms account for the impact of morphing wing on flight states and make it difficult to study dynamic characteristics of missile. Therefore, a simplified model is deduced based on some reasonable assumptions. As a result, a longitudinal dynamic model is decoupled from the complete model. To verify the model, a numerical simulation is completed. The results show that the speed of wing changing has a notable effect on motion parameters during transition from one configuration to another, that is, the rapid wing changing means the larger amplitude and the higher frequency of motion vibration.
Development a CNC System of Micro WEDM
Authors: Huang R.N. , Wang T. , Liu B.
Published: November 2010

A Micro WEDM (Micro Wire Electrical Discharge Machining) CNC system is presented in this paper. Its hardware platform adopted PC with movement control card. For Micro WEDM system is a typical multitasking and real-time system, the CNC software adopted multithread and module structure to perform the parallel tasks and real-time tasks. It also adopted fuzzy control algorithm to control the feeding speed and acceleration. Practical proved that the CNC system is not only low cost and easy to development, but also satisfied the need of Micro WEDM.
Digital Electro-Hydraulic Proportional Control for Bulldozer Working Device
Authors: Cao Qing Hua
Published: November 2010

In order to improve the steering and braking of the bulldozers, electro-hydraulic proportional control technology is adopted without change the transmission system of bulldozer, two hydraulic rams are used to control the steering and braking valves in both sides of bulldozer, one electromagnetic direction valve to select controlling side, and proportional reduced valve to control the pressure of hydraulic ram. Then Matlab/Simulink to imitate the dynamic characteristic is used, The single stick steering and braking control system designed improve the maneuverability and operating condition of bulldozer. The result of this paper can apply to practice directly and use for reference for other engineering machine as to single stick centralized control.
Control of Hopf Bifurcation in Power System
Authors: Ma You Jie , Li Xiao Shuang , Zhou Xue Song , Li Ji , Wen Hu Long , Jia Li Ying
Published: November 2010

In power system, when the overload of large-scale power grid results in serious disaster, the nonlinear dynamic bifurcation is obvious. It will be effective to delay the occurrence of bifurcation through the bifurcation control method, so workers have enough time to take protective measures. We can also design an appropriate controller to prevent these kinds of dangerous disaster effectively. This paper outlines a number of common bifurcation control method, and use one of these method to design a bifurcation controller so as to control the hopf bifurcation in power system and make a Simulation on it.
Based on the Grey Prediction Methods Forecasting the Logistics Development of FuJian Province
Authors: Wang Ying Chun , Liu Wen Juan
Published: November 2010

With The uncertainty and not repetitive of economic society and the incomplete of relevant statistics data, the paper uses grey prediction methods establishing mathematical model to forecast the developing trends of quantity of shipment, according to FuJian’s almanac socioeconomic statistics and development trend of quantity of shipment. On this basis, it also summarizes the application environment of grey prediction methods and some suggestion of the application.
An Empirical Analysis of International Trade Network of Iron Ore
Authors: Wang Cong Cong
Published: November 2010

This paper uses data of international iron ore trade in 2009, which cover 61 countries and 134 trade relationships, to evaluate the bargaining power of both export and import countries from the perspective of social network. The countries’ positions in the iron ore trade network and their bargaining power are examined through analysis of their Freeman degree centralities, Bonacich powers, betweenness centralities, and flow centralities. The results of these analyses identify prominent exporters, importers and brokers with great bargaining power, and countries with potential to improve their bargaining positions. The results also reveal the reason why the international negotiations of iron ore trade were almost always in favor of exporters.
Application of Virtual Instrument in Time Delay Signal Analysis
Authors: Li Ming , Jiang Chun Lan , Wang Zai Cheng
Published: November 2010

Time delay estimation is the basis of target location of multi-sensor network, while the basic analysis of the signal is of key importance to the time delay estimation. In this paper, a time delay analysis system is designed by virtual instrument development tools. The analysis system contains: virtual oscilloscope, virtual spectrum analyzer, virtual filter and virtual time delay analyzer. Using this analysis system on a set of field collected acoustic target signal, spectrum analysis and filtering is made. Then the time delay estimation has been carried out for several sampling data segments selected by certain rules, and curve of the time delay vs. time is given. Analysis shows the main frequency of the target signal: 85Hz, 13Hz, 170Hz and 125Hz. The regular pattern of the time delay curve is consistent with the target motion. Application reveals that the system is helpful in the research of time delay estimation.
Research on the Topography Feature of the Diamond Grinding Wheel under Elliptical Ultrasonic Assisted Dressing with Diamond Stylus
Authors: Wang Quan Cai , He Nan Fang , Gao Guo Fu , Zhao Bo
Published: November 2010

In this paper, topography feature of the diamond grinding wheel under the diamond stylus elliptical ultrasonic vibration assisted dressing was studied experimentally. The results indicate that: the increase in dressing power of elliptical ultrasonic vibration will result in the increase in amplitude, and that can increase abrasive protrusion height of the dressing grinding wheel, and also increase the depth of chip pocket. With the increase of feed rate, surface peak and valley values of elliptical ultrasonic vibration dressing grinding wheel increase, that is the average protrusion height of abrasive grain increases. With the increase of dressing depth, surface peak and valley values of elliptical ultrasonic vibration dressing grinding wheel increases, while the number of static effective abrasive grain reduces. In comparison with the ordinary dressing grinding wheel, elliptical ultrasonic assisted dressing in the same parameters can bring about more static effective abrasive grain , more uniform abrasive distribution, a higher abrasive protrusion height and more chip space.
Numerical Simulation of High-Aspect-Ratio Micro-Hole Electroforming with External Magnetic Field
Authors: Li Wei , Ming Ping Mei , Jiang Wu Ji , Lv Yin Ding
Published: November 2010

In this paper, the influences of applied magnetic field on flow state during electroforming of the high-aspect-ratio (HAR) blind micro-hole were numerically analyzed using the Fluent software. The results showed that, when microelectroforming of nickel without external agitation, three vortexes could form due to the magnetohydrodynamic (MHD) effect within the HAR micro-hole with magnetic field in parallel to cathode-electrode surface, and the flow rate in the micro-hole increased with the increase of the magnetic field and current density. The MHD effect helped to enhance mass transfer during the microelectroforming of HAR microstructures.
Analysis of Pressure Vessel Manufacturing Technology Development
Authors: Chen Ping , Ma Jian
Published: November 2010

With the rapid development of modern industry, pressure vessel technology has been widely applied in research and industrial production, and some of pressure vessels have been required under more harsh applied conditions such as severe bearing loads and large-sizes, making higher demands on the manufacturing and security for them. This paper outlines the various pressure cylinder structures that have emerged in history and their evolution processes, and proposes a reasonable interlocking steel strip wound cylinder and analyses its structural characteristics. It can not only resolve the issue of the axial bearing load of the winding cylinder well but also be manufactured economically
The Lower Control System Development of 3 DOF Parallel Machine Tool CNC System Based on DSP
Authors: Gao Tie Hong , Li Rui , Yang Shi Zhong , Zhuang Yan
Published: November 2010

The 3 DOF parallel machine tool CNC system based on DSP takes 3-HUU configuration of parallel machine tool as the control object, and adopts TMS320F2812 of TI DSP as control core of the CNC system. This paper mainly studies hardware design and software design of the lower control system of the 3 DOF parallel machine tool, and does practical test which shows that the CNC system can well control the parallel machine tool and finish machining movement.
Simulation Analysis for Rotor’s Strength of Impact Crusher
Authors: Wang Qing , Zhang Hai
Published: November 2010

The impact process of the hammer and the rock in impact crusher has been simulated with the software MSC.Dytran. Through the analysis of stress distribution in hammer and square plate, the region which stress is greater and the maximum stress loaction was founded. The result of the simulation will provides the basis for the improvement of the crusher’s performance.
Study on Grinding Force in Two-Dimensional Ultrasonic Grinding Nano-Ceramics
Authors: Li Xiang Dong , Wang Quan Cai
Published: November 2010

In this paper, the characteristic of grinding force in two-dimensional ultrasonic vibration assisted grinding nano-ceramic was studied by experiment based on indentation fracture mechanics, and mathematical model of grinding force was established. The study shows that grinding force mainly result from the impact of the grains on the workpiece in ultrasonic grinding, and the pulse power is much larger than normal grinding force. The ultrasonic vibration frequency is so high and the contact time of grains with the workpiece is so short that the pulse force will be balanced by reaction force from workpiece. In grinding workpiece was loaded by the periodical stress field, which accelerates the fatigue fracture.
The Influence of Modeling Methods on the Meshing when Solid Element Was Used in ANSYS - Taking the Design by Analysis of Dry Welding Experiment Module as an Example
Authors: Lv Tao , Zhao Jie , Xue Long
Published: November 2010

In this paper, we take the design of the dry welding experiment module analysis, which by using the finite element analysis software ANSYS, as an example to elaborate the influence of different modeling methods on meshing, and to show how to select a better method for qualified mesh.
Based on the Online Monitoring and Fault Diagnosis System of the Main Hoist for Mine
Authors: Pan Zhi Yong , Wang Quan Cai , Ren Wei Hong
Published: November 2010

According to the reality, an online monitoring and fault diagnosis system of the main hoist for Mine was designed in this article. The system adopts the signal acquisition and processing, fault diagnosis, Web visualization, network real-time database and other related technologies, Real-time monitoring the current, voltage, temperature, speed, vibration and other parameters of the main elevators to Achieve the goals that Increasing efficiency by downsizing, protecting the safe operation of equipment, reducing the maintenance costs.