bluuebunny/crossref_metadata_2025 huggingface dataset:
Surface Phase Transformation Analysis of Nanozirconia Toughened Alumina Ceramics under Two-Dimentional Ultrasonic Vibration Grinding
Authors: Yan Yan Yan , Xu Pei Lin , Zhao Bo
Published: November 2010

Based on good processing property of two-dimentional ultrasonic vibration assisted grinding (TUVAG), phase transformation in the grinding surface of nanozirconia toughened alumina ceramics (ZTA ceramics) is studied by XRD analysis. Experimental results show different processing method and grinding depth may lead to surface phase transformation of ZTA ceramics. Under the same grinding parameters, phase transformation ratio of grinding surface under TUVAG is higher than that under diamond grinding (DG), and its phase transformation ratio increases with the increasing of grinding depth. Phase transformation ratio can effectively inhibit generation and expansion of microcracks of grinding surface.
The Simplest Mathematical Model and Simultaneous-Control Structure for Hobbing Helical Non-Circular Gear
Authors: Tian Fang Yong , Hu Chi Bing , Jiang Yan Cang
Published: November 2010

To solve helical non-circular gears manufacturing problem, the simplest mathematical model for hobbing helical non-circular gear and simultaneous-control structure which the machine tool should have were researchedbeen researched. By comprehensive using of helical teeth meshing principles and helical tooling rack generation method, the simplest mathematical model for hobbing helical non-circular gear was deduced. The structure was a 4-axes simultaneous-control structure. Then, by applying the electronic-gear circuit module and electronic differential combination circuit module developed by the authors, simultaneous-control structure of CNC system which hobbing helical non-circular gear required was designed. Based on this, hobbing helical non-circular gears can be achieved, and helical non-circular gears manufacturing problem can be solved.
Study on the Thermal Effect of Adding Coal Cinder to the LCZ of Solar Pond
Authors: Wang Hua , Liu Jun Li , Zou Jia Ning
Published: November 2010

In this study, adding coal cinder to bottom of solar pond as a means of increasing temperature of the solar pond is presented. A series of small-scale tests are conducted in the simple mini solar ponds. These small-scale tests include the temperature evolution comparisons of this mode with other normal modes; the comparisons of the material added to LCZ and the comparisons of the different soaking times for coal cinder. In addition, a numerical calculation on predicting temperature evolution in large area of salt gradient solar pond is also given. Both of the experimental and numerical results suggest that adding porous media with low thermal diffusivity (e.g. coal cinder) could significantly increase the temperature in the vicinity of the bottom of the pond. From the view of long-term, this effect is supposed to enhance the average temperature of the solar pond.
Recognition of Crack Damages Based on Wavelet Transforms
Authors: Li Chang You , Zhang Sheng Kui , Cheng Xiao Qi
Published: November 2010

To recognize whether there exist crack damages in the inner structure of aircraft engine based on the borescope images, a method is presented by estimating the coarse feature of edges extracted from borescope images. The method first decomposes an edge into the approximation and details using wavelet transform at all of the possible scales. For the coefficients of the wavelet transform, the logarithm entropy is presented to represent the respective strength of the approximation and details, and the ratio of the two logarithm entropies is defined as coarseness factor. The coarseness factor can be used to estimate the coarseness of an edge. The greater the coarseness factor is, the coarser the edge is. Experiment results show that using coarseness factor as recognition feature of borescope images, the crack damages of the inner structure of aircraft engine can be recognized successfully.
Research on Vibration Stress Relief Based on FEM
Authors: Li Chun Mei , Cui Feng Kui
Published: November 2010

In order to improve VSR(Vibration Stress Relief) effect, finite elements method is applied to study VSR process factors. Simulation on moulding process, rough machining process and heat treatment are used to study the residual stress distribution of casting. The modal analysis is carried out to determine exciting frequency, exciting position and support position. Based on residual stress distribution, harmonic response analysis is applied to find relationship between dynamic stress and exciting force. Then the exciting force can be determined. The research results indicate that finite elements method can be used to determine VSR process parameters quickly and accurately.
Experimental Study on Ultrasonic Milling Acoustic System
Authors: Li Zhang Dong , Zhao Bo , Ma Jun Jin
Published: November 2010

Composite materials have good mechanical properties. In order to solve the difficult process of composite materials, this paper proposes to use a method of ultrasonic milling on the composite materials processing, we mainly studies the effect of the length of the arbor, arbor diameter and arbor end milling platform on the acoustic resonant frequency, amplitude, and anti-resonance frequency. With the decreased in the length of the tool bar, tool bar's resonant frequency increased，and the oscillation amplitude also obviously increased. In the vicinity of 35 KHz amplitude of vibration are largest. Along with tool bar diameter's increasing, the resonant frequency is increases gradually. Milling platform has little effect on the resonant frequency and amplitude.
Study on Fault Diagnosis for Turbocharging System of Diesel Engine Based on Support Vector Machine
Authors: Zhang Xiao Ming , Chen Dong Hai
Published: November 2010

The support vector machine technology is applied to study the fault diagnosis for supercharge system of diesel engine. Based on the different features under various faults of supercharge system of diesel engine and the signal variables of the fault of the system’s components, dimensionless daters can be gotten after normalization processing. The utilization of SVM with good generation ability wad adopted to establish the diagnosis model for supercharge system of diesel engine, which can make the system failure diagnosis through inputting the diagnosis data. The average accuracy is 99.8% in twenty tests. The diagnosing results are consistent with the factual results.
Stator Structure Optimization of Cylindrical Bending-Type Ultrasonic Motor
Authors: Wang Zhong Ying , Liu Bao , Cao Xian Zhou , Deng Zun Yi , Ren Bao Chen
Published: November 2010

In order to satisfy the design requirements of the stator structural of a cylindrical bending-type ultrasonic motor (CBTUSM) and improve the design methods at present, a new optimization program based on the parametric language APDL was used to optimize the stator structural, and a stator prototype (diameter of 30 mm, lenth of 34 mm) was fabricated. Optimized and measured results indicated that the center of the piezoelectric ceramics is very close to the wave peak of the stator bending mode, the calculated and measured values of the amplitude ratio of the stator driving side and terminal side are well consistent.
Flow Characteristic of Axial Piston Pump with Conical Cylinder Block
Authors: Li Lei , Xu Ming Heng , Ke Jian , Yu Lan Ying
Published: November 2010

To examine the flow characteristic of axial piston pump with conical cylinder block, a comprehensive mathematical model of flow condition within a single cylinder bore was developed by utilizing discrete approximation. Each step of the discrete analog was fallen into three successive phases with oil compressibility and classical orifice equation. Besides, the discharge flow equation of whole pump was obtained with lumped parameter method. Based upon this model, a simulation system was built in the simulation software. The novel aspect of this research is that analysis of cylinder block cone angle. From the result of numerical simulation, it can be concluded that cylinder block cone angle has a significant impact on the flow characteristics, and conical cylinder block design is more feasible than cylindrical cylinder block from a flow characteristic point of view.
Relationship between Electrical Parameters in Combined EDM and Surface Quality
Authors: Kang Xin Long , Yu Dong Man , Guo Hui , Shang Chang Pei
Published: November 2010

This paper presents a deep analysis for the effects of the principles and Electrical Parameters of ultrasonic vibration aided EDM in gas on the roughness of finish machined surface by briefly describing the principles and process characteristics of EDM and combined ultrasonic discharge machining technology, and qualitatively obtains the law of the effects of electrical parameters on the quality of machined surface from the analysis of experimental results. The comparison among the three EDM methods shows the superiority and development prospect of ultrasonic vibration aided EDM in gas.
Thermodynamic Analysis of Interfacial Reaction between Diamond and Ni-Cr Alloys
Authors: Yang Zhi Bo , Zhang Gui Bin , Xu Jiu Hua
Published: November 2010

Brazing diamond grits to steel substrate using Ni-based filler alloy was carried out via laser in an argon atmosphere. Thermodynamic analysis was performed in order to research the interfacial reaction mechanism of diamond and Ni-Cr alloy during high temperature brazing. Meanwhile, microstructure of the interfacial layer was experimentally detected by scanning electron microscope (SEM), energy dispersion spectrometer (EDS) and X-ray diffraction (XRD) in this paper. The results indicate that according to the thermodynamic theory the interfacial reaction has been proved feasible, and during brazing high strength bonding between diamond grits and the steel substrate has been successfully realized because the chromium in the Ni-based alloy segregated preferentially to the surface of the diamond to form a chromium-rich reaction product Cr3C2, and the bond between the alloy and the Diamond was established through the reaction product.
Numerical Simulation of Fluid Dynamics in a Two-Dimension Gas-Solid Bubbling Fluidized Bed
Authors: Zeng Tao , Zhang Xiang , Lin Hai Bo , Zhou Min , Cheng Kai
Published: November 2010

The process of bubbles from formation to eruption was simulated by using the two-fluid model combined with the particle kinetic theory to investigate the flow characterization of gas-solid in a bubbling fluidized bed. The velocity distributions of solid-phase in different axial height were also studied. The results show that the numerical simulation method can success simulates the flow characterization of gas-solid bubbling fluidized bed. The flow characterization in bubbling fluidized bed is circulating flow structure, while the central region is upward flow and the wall region is downward flow. The simulation results agree with the experiment results.
Research on the Definition of Armature Components Composite Stiffness
Authors: Wang Hui Feng , Wang Guang Lin , Lu Ze Sheng
Published: November 2010

. The importance of the armature components and two kinds of whose definition have been illustrated. The concept of tandem and parallel stiffness has been proposed. The definition of armature components has been provided based on analyzing the working principle of the electro-hydraulic servo valve
Design of a Switched Reluctance Generator Drive System for Hybrid Electric Vehicles
Authors: Wu Ai Hua , Mao Jing Feng , Wu Guo Qing , Li Zhi , Zheng Fei
Published: November 2010

In this paper, the design and implementation of a 12/10 poles 6-phase switched reluctance generator (SRG) drive system for hybrid electric vehicles (HEVs) is investigated. Firstly, the principle of the SRG, its control parameters and operation characteristics are analyzed. Then, according to the requirements of the SRG using as an integrated starter generator for HEVs, an optimized switch angle position with current chopping control method is proposed to regulate the SRG power output. In order to improve the charge performance and extend the service life, the lead-acid battery group uses a two-stage charge mode, which is realized by two digital power regulators of the SRG. After that, an experimental system is set up and the controller's internal circuit is described. At last, the proposed SRG drive system is verified by experimental results.
A Distributed Monitoring and Information Announcing System
Authors: Li Bo , Wang Yi Ding , Qiao Shuang , Ma Zhi Qing , Yang Gui Fu
Published: November 2010

This paper describes a distributed system for monitoring the cameras and controlling the pan tilt zoom, banners and slogans. The system satisfies that users can operator the devices in any computer in the LAN of the express way system, and all video stream can be showed in both a video matrix and any computer in the LAN of the express way system as well. We employ web service and converter between network and serial communication line to implement the anywhere-accessing requirement.
An Improved PSO-ACO Algorithm for Solving Large-Scale TSP
Authors: Ouyang Ai Jia , Zhou Yong Quan
Published: November 2010

In this paper, an improved particle swarm optimization-ant colony algorithm (PSO-ACO) is presented by inserting delete-crossover strategy into it for the shortcoming which PSO-ACO can’t solve the large-scale TSP. The experiments results show that the PSO-ACO has better performance than ant colony algorithm (ACO) on searching the shortest paths, error and robustness for the TSP.
The Mid-Long Term Power Load Forecasting Based on Gray and SVM Algorithm
Authors: Li Wei , Zhang Zhen Gang , Yan Ning
Published: November 2010

Generally, the power load forecasting sequence has stochastic growth and nonlinear wave characteristics, grey SVM can effective reflect the growth properties of the sequence and fit the nonlinear relation. The whole forecasting precision of the sequence was optimized, and the transfer matrix for the forecasting sequence was decided, then the accuracy for power load forecasting was greatly improved. Through the demonstration test, the precision is better than single method, the method in this paper have feasibility in practice.
The Research on the Wind Energy Distribution over Complex Terrain of Wind Power Plant
Authors: Liu Yong Qian , Tian Zi Chan , Li Fen Hua , Xing Jian
Published: November 2010

The accurate prediction of the wind energy distribution over terrains is important for making an appropriate selection of a suitable site for installing wind power plant. In this study, numerical simulations of the two-dimension hill over smooth and roof surface have been done using three different turbulence model :standard model and other revised models ,and the simulation results have been prepared with wind tunnel experiments ,in order to obtain the best turbulence model
Research on Lyapunov Exponent of Chaos Feature in Different Stress Stage of Concrete Joint System
Authors: Song Jun Wei
Published: November 2010

: According to the research on whole curves of strain-stress of concrete materials, the paper illustrates in evidence features of stages and shows that the discrete feature of curve often occurs in strain-softening stage. After chaotic dynamic analysis of testing datas, it presents that system of whole process of strain-stress evolves from ordered steady state to low chaotic state and then to high chaotic state along with increase of compressive strength. The linear relationship of strain- stress grows evident and the system evolves from strong ordered steady state to low chaos state. The strain-stress system before compressive strength peak is basically in weak chaotic state. The is proposed to be the stability criterion of concrete features in different stress stages, and the is regarded as the representative value of the system stability degree. The calculation of example shows that the stability criterion definited by the proposed method is consistent with the actural situation.
Algorithm of Sparse Least Squares Support Vector Machine
Authors: Zhang Yong Li , Zhu Yan Wei , Lin Shu Fei , Sun Xiu Juan , Zhang Qiu Na , Liu Xiao Hong
Published: November 2010

Support Vector Machine has been widely studied in recent years. The algorithm of least squares support vector machine is studied, the shortcomings of the algorithm are given. The result of algorithm is lack of sparseness. In this paper greedy algorithm is introduced into the least squares support vector machine. Sparseness is obtained again. A new algorithm of sparse least squares support vector machine is given. The new algorithm was used to sewage treatment plant daily monitoring. Experimental results demonstrate the improved algorithm of support vector machine was successful.
Access Process of Data-Flow in Cross-Domain Usage Control Model Based on XACML
Authors: Dai Chang Ying , Gong Wen Tao , Liu Jing
Published: November 2010

With the rapid development of information technology, more and more requesters need accessing the services in different access domains, which make the access process in cross-domain become more difficultly. The traditional access control models couldn’t solve the access process for their design limitations and diversity access policies. Usage control model (UCON) was proposed to strengthen the expression of access control model, but UCON is only a conceptual model. How to use the UCON in access process? It is worthwhile to further study. Extensible access control markup language (XACML) is an open standard XML-based language, which can be used to describe the security policy. In order to solve the access process in different access domains, based on XACML, access process of data-flow in cross-domain usage control model is proposed in the paper. Access process of data-flow cross different domains in XACML is introduced to solve the cross-domain problem. Finally, a small example is given to verify the effectiveness of access process.
Research of Tent Map Based Chaotic Particle Swarm Optimization Algorithm for Emotion Recognition
Authors: Wang Hai Ning , Sun Shou Qian , Wu Jian Feng , Shi Fu Qian
Published: November 2010

For the problem of feature redundancy of emotion recognition based on multi-channel physiological signals and low efficiency of traditional feature reduction algorithms on great sample data, a new chaotic particle swarm optimization algorithm (TM-CPSO) was proposed to solve the problem of emotion feature selection by combining tent map based chaos search mechanism and improved particle swarm optimization algorithm. The problem of falling into local minimum can be avoided by mapping the search process to the recursive procedure of the chaotic orbit. The recognition rate and efficiency was increased and the algorithm's validity was verified through the analysis of experimental simulation data and the comparison of several recognition methods.
A Novel Discriminant Non-Negative Matrix Factorization and its Application to Facial Expression Recognition
Authors: Zhu Yan Li , Chen Jun , Qu Pei Xin
Published: November 2010

The paper proposes a novel discriminant non-negative matrix factorization algorithm and applies it to facial expression recognition. Unlike traditional non-negative matrix factorization algorithms, the algorithm adds discriminant constraints in low-dimensional weights. The experiments on facial expression recognition indicate that the algorithm enhances the discrimination capability of low-dimensional features and achieves better performance than other non-negative matrix factorization algorithms.
The Relationship of Nonfinancial Performance Measures and Earnings Management
Authors: Xu Yan , Zhang Jun
Published: November 2010

By using 62 China’s listed companies’ data and considering environmental uncertainty, I analyze the links of earnings management to nonfinancial performance measures, and then the relationships of earnings management and three suborder nonfinancial performance measures. The empirical results test that nonfinancial performance measures can help to control earnings management under increased environmental uncertainty, and so do internal process measures and learning & growth measures.
CUGrid and VGE Based Air Pollution Dispersion Simulation
Authors: Xu Bing Li , Lin Hui , Cui Wei Ning , Hu Ya , Zhu Jun , Tang Sammy
Published: November 2010

Air pollution dispersion is a typical geographic process. A reasonable way to simulate air pollution dispersion is to modeling the dispersion and presents the results in a geographically referenced virtual environment. In this research, we apply the concept of virtual geographic environments (VGE), which is coined in the community of geographic information science, to facilitate air pollution dispersion by integrating MM5 and VGE. Because MM5 is computation intensive, the CUGrid is used in this research to decrease the computation time. Our research focuses on three key points, which are the platform design, MM5 integration and computation on CUGrid, and geographical visualization of air pollution dispersion in VGE. Based on the prototype system, a case of simulating air pollution dispersion in Pearl River Delta is employed to validate and test the rationality of the methodology. As shown in this case study, VGE can provide a good way to visualize air pollution dispersion and the CUGrid can decrease model computation time significantly.
Sweet Spot and the Influence of Corking and Materials on Baseball Bat
Authors: Song Ze Cheng , Zhang Tian Long , Zhang Chao , Song Xin Hang
Published: November 2010

In Section 1, we describe process of ball-bat collision using kinetic model, and derive the post-collision ball speed as a function of the hitting location. Then we differentiate the function and find out where the sweet spot is. The result successfully explains the best location is not at the end of the bat in consistent with our practical experience. In Section 2, based on the model in Section 1, we add two assumptions, supposing corking only influences mass and moment of inertia of bat. Then the maximum outgoing ball speed is only depended on mass of bat. The result shows properly corking will enhance the bat performance. In Section 3, we explain “trampoline effect” in dynamic model and throw light on energy transformation in collision process. We conclude that COR is related to materials, and aluminum bats perform better than wood bats.
Based on Wireless Network Migration Multimedia in Education Application
Authors: Lu Dong , Dai Jian Guo
Published: November 2010

Moves the multimedia studies is one kind of new study form. Today which in the Internet high speed development, the multimedia technologies renew unceasingly, use wireless network merit, constructs the transportable multimedia digital classroom, by “scientific style” the way helps the school solution training facilities to reform the question, has enlarged the school educational reform step.
Simulation and Analysis of Roller Eccentricity Compensation in Cold Mill
Authors: Gao Qi Ming , Zhao Guo Qing , Wang Hai Fei
Published: November 2010

With the increase request of strip quality, the roller eccentricity has become the important factor of influencing product quality. On the practical model of Cold-rolling Mill of 300, this paper establishes eccentricity compensation control practice of Cold-rolling Mill of 300 which applies wavelet transform method. Based on mufti-resolution decomposition of roll force signal by use of wavelets, eccentricity signals are separated from disturbances and noise，and self-optimization is employed to real-time control the roller eccentricity. The results show that the method is effective.
Design and Application of Real-Time Embedded Software Simulation Testing Object Framework
Authors: Yin Yong Feng , Liu Bin , Ni Hong Ying
Published: November 2010

At present, the automated real-time embedded software testing is a hot topic. Automated testing is essentially based on user programming and how to build test script quickly and effectively is one of the key problems to be resolved. In this paper, the object-oriented and framework technologies are introduced into the real-time embedded software testing field and the real-time testing object framework (RT-TOF) is studied firstly. And then, the test script generation process based on RT-TOF is proposed. Furthermore, the design of RT-TOF is put forward. Finally, the test script sample of the avionics embedded software system testing is given. Practical application of RT-TOF in engineering shows that the method proposed in this paper can improve the efficiency of automated testing greatly and the test script based on RT-TOF has better maintainability and reusability.
The Study on Personalized Guidance in Intelligent Library Based on Multi-Agent
Authors: Ji Zhi Gang
Published: November 2010

The system integrated RFID technique, wireless and mobile phone which apply in the intelligent guidance and book management of large scale of library, and to collate the real time information by different functional mobile agents to provide customized information and service, according to the favorite of each reader. Meanwhile, to display forgoing information by multimedia video of book introduction for readers to replace traditional looking for some particular book provide the customized knowledge search style and effective book introduction. In addition, our article set forth System Environment Aware and Recommending Mechanism which bring up considerations for customized information, besides to analyzing personal favorite, should think about the environmental factors in the library, such as, moving path of readers, service and so on such synthetic factors to have a complete analysis and consideration, so as to know what the most appropriate guided service and information is for readers and to make it as a customized intellectual guided service.
A Novel 3D Model Retrieval Approach Based on Model-Partitioning and Fuzzy Relevance Feedback
Authors: Zou Kuan Sheng , Wu Chun Ho , Ip Wai Hung , Chan Ching Yuen , Yung Kei Leung , Chen Zeng Qiang
Published: November 2010

3D models play an important role in many applications, so there is an urgent need for an effective content based 3D model retrieval system. A variety of 3D model retrieval methods have been proposed in recent years. Shape distributions show superiority over other methods due to ease of computation and invariance to Euclidean motion, but there is poor retrieval performance for the loss in information. This paper introduces two model-partitioning methods to improve shape distributions, in which the two enhanced descriptors are combined with a fuzzy feedback method. Experimental results show that the proposed methods can achieve better retrieval performance.
Ancient Books Chinese Characters Segmentation Based on Connected Domain and Chinese Characters Feature
Authors: Zhu Lei , Yang Jing
Published: November 2010

During the processing of handwritten Chinese characters recognition, pretreatment and segmentation has great effect to the recognition. On the base of review upon the often-used algorithm, the article proposes the methods which get the connected domain of binary image use the non-recursion Marking algorithm, and design the algorithm to coherent noise and delete image frame line and segment the character. The article segment the character in the whole scope with the connected domain merging algorithm to overcame the difficult about the tilt; and segment the Chinese character in the part scope with the projection to overcome the difficult about conglutination. The fact proved that this algorithm solves the problem by using single method.
The Research and Development of On-Line Inspection Work-Pieces Using CNC Machines
Authors: Wang Ya Qing , Qu Wei Dong
Published: November 2010

This document explains and demonstrates the module design and function of the on-line inspection system using the CNC machine. We designed the system for the five axes of the Shenyang Machine Tool Co. LTD’s CNC SSK-U6035 machine. The system could automatically shape and monitor the procedure, then according to the inspection outcomes align the machine and check the machine was correct. Using this system greatly improved the inspection speed and the measurement accuracy.
On the Calculation of Bounds of Probability of System Performance Using Evidence Theory
Authors: Suo Bin , Cheng Yong Sheng , Zeng Chao , Li Jun
Published: November 2010

To evaluate the system performance with limited experimental data and uncertainty information, a method to calculate the bounds of probability of system performance is proposed, in which evidence theory is used. CBF and CPF formulations are deduced as lower and upper bounds of probability of system performance respectively, and the estimations of them using Monte Carlo method are employed by sampling the random intervals of uncertainty parameters. With this method, a less structured representation of uncertainty is possible than is the case with probability theory. The simulation results indicate the proposed algorithm is correct and effective, and can provide a basis for design, performance evaluation, and reliability evaluation of system.
Using Stress Wave Based Technology for Wood Material Nondestructive Testing
Authors: Feng Hai Lin , Fang Yi Ming , Li Jian , Li Guang Hui
Published: November 2010

Stress wave based technology has its special advantages in the field of wood nondestructive testing and quality evaluation. To analysis the propagating properties of stress wave in the wood material, a transmitting model in anisotropic material was introduced in rectangular and cylindrical polar coordinate system. The relationship between stress wave propagation and elastic constants was shown. The propagating of stress wave in wood material and the possible solutions with different parameters were studied. The transmitting character of stress wave in symmetry planes was analyzed, and the elastic constants of woods were used to compute the stress wave propagation in wood material.
Pressure Prediction Technology of the Deep Strata Based on BP Neural Network
Authors: Li Wei , Yan Tie , Liang Ying Jie
Published: November 2010

. The accurate prediction of strata pressure is the base for safely, quality and efficiently drilling, decreasing hole problems and reasonable development of the reservoir. Because of the high cost, long cycle of the formation pressure measured method, which may influence the safety of drilling operation, thus a new method for predicting strata pressure, based on the BP neural network, is presented in this paper, and establishing process of the neural network forecast model are discussed in detail. This method takes the acoustic time, natural potential, natural gamma ray log data and pipe pressure test data as study sample, which has a very high accuracy. The paper predicts strata pressure of the Saertu oil field and Xingshugang oil field in Daqing, and the results show that relative error between the predicted data and experimental data is less than ±8.9%.
Application of Genetic Algorithms in Particle Inversion
Authors: Li Jie , Jiang Hai Ying
Published: November 2010

In the general light scattering particle size measurement methods, the inversion error of results is nonuniform distribution. To solve this problem, genetic algorithms based on real number coding were proposed to be applied in the inversion of particle size distribution. In this method, the fitness function was further improved in order to reduce the individual error, it not only considered sum of all errors but also took into account the individual maximum error. With this improved fitness function, the error distribution is homogenized. The light spectrum about measurement and calculation are basic entirely fitting. The results show that the algorithm is accurate and reliable.
Design and Implementation of Maxi-Linear Deviation Search Algorithm Based on Improved ICP
Authors: Liu Li Zhao , Chen Yu Feng , Zhang Tian Hua , Wang Ying , Li Mao Qing
Published: November 2010

To solve the problem of calculating the maximum linear deviation in block cipher algorithm linear analysis, the paper has proposed a search method and improved algorithm based on iterative closest point (ICP) of the maximum deviation. The ciphertext and its coefficient matrix is initialized as range image matrix, using ICP algorithm to calculate the best match state of adjacent range image, and the linear deviation value of round function transformation of this time was proved to be the maximum linear deviation by applying generalized Walsh spectrum; by proposing the initial rule corresponding distance, determined the initial corresponding relation of iterative algorithm, each round of transformation matrix would be assigned to the next round as the initial transformation matrix which has improved the matching speed of the ICP algorithm; the rationality and effectiveness of this new search algorithm can be proved by comparing with the maximum linear deviation search algorithm put forward by M.Matsui.
Rough Dual Ideal in Lattices
Authors: Shao Yi Xing , Liao Zu Hua , Wu Lian , Cao Shu
Published: November 2010

In 2009, Zuhua Liao and his students induced rough sets into inclines. They put forward the concepts of upper and lower approximations of a subset in an incline, and studied some properties of and . This paper , based onthose researches ,investigated rough dual ideal in lattices, and discussed the properties of and when is a dual ideal, a prime dual ideal and a convex sublattice of .
Temperature Profile of Microencapsulation for Self-Healing Application
Authors: Li Ting Ting , Liu Xing , Wang Rui
Published: November 2010

Healing agents significantly affect the efficiency of healing microcracks, which produced from life-time service in composites. And microencapsulating 5-ethylidene-2-norbornene (ENB) with Melamine-Urea-Formaldehyde (MUF) shell possessing higher self-healing efficiency is sensitive to the manufacture temperature profile which is difficult to control but crucial to the microcapsule performance and thus the reproducibility. In this paper, we studied the relationship between heating curve (rate, steps and time) and microcapsule performance (surface morphology, thermal stability and shell thickness). It shows that fast-slower heating stage produces the best quality of microcapsule with proper outer and inner surface which can endure 285°C, and the particle size is about 100m with 400-700nm shell thickness.
Running Simulation System of Distillation Columns Based on MATLAB
Authors: Liu Cai Xia
Published: November 2010

Establish the mathematical model for distillation columns running system, and calculate configurable and performance parameter. Using MATLAB to simulate and analyze dynamic external load such as wind load and earthquake load, do the curve fitting. That provides theoretic results and simulating curve for designing and modifying column structure. New dynamic continuous computation in external load is substituted for the traditional subsection computation for the first time. Numerical superposition and curve fitting of load along the entire tower is completed. That avoids discontinuous stress in the junction point generated by subsection computer with deviation value to the full. Bending moment calculated can infinitely close to the ground beyond section numbers, and describes the external load more truly and reliably. Simulation results of an actual system demonstrate that precision of continuous computation is obviously higher than that of subsection computation. Simulation software based on MATLAB has high efficiency, good stability, which is convenient to checkout columns strength, rigidity and stability under dynamic external load.
Intelligent Job Service Scheduling Scheme in Campus Grids
Authors: Yan Shu
Published: November 2010

Campus grid is to use grid technology, the existing campus network, distributed, heterogeneous computing resources and information resources to the virtual integrated together to form a pool of available computing resources and can provide information platform for users to query information. This paper presents job scheduling model based on open grid service architecture by analyzing the current status of campus network and grid technologies. The simulation results show that the models are feasibility and validity.
Resource Sharing Campus Grid Platform Based on Load Balancing and Open Grid Service Architecture
Authors: Yan Shu
Published: November 2010

In order to share distributed resources in the campus network and save relevant cost, This paper presents an extended campus services, data integration middleware grid middleware, grid data integration gives the campus a key middleware technology and architecture, and discusses the integration of grid middleware architecture of the campus's role and how grid services and other interactive components to complete the application request
A New Method of Extraction of Mobile Robot Navigation Line Based on Edge Detection
Authors: Dong Ji Wen , Lv Hui Ming
Published: November 2010

The extraction of ground navigation line is one of the basic technologies of mobile robot visual navigation. Due to the shortcomings of traditional Hough transform and the least square method to extract navigation line, a new method of navigation line extraction based on edge detection is proposed in this paper, which includes three stages: image preprocessing, morphology de-noising and edge detection. First, using monocular camera to collect image of navigation line laid on the ground in advance and preprocesses the collected image, and then using morphology to remove separated points and empties, finally, detects the edge of the processed image, and calculates the slope of navigation line according to the calculated midpoints, then computed the deviated angle of the robot according to the slope and adjusted in real time in order to achieve navigation. Results of experiments show that the method has good feasibility.
Research on Torsional Vibration of Gear-Shafting System Based on an Extended Lumped Parameter Model
Authors: Xu Xiang , Zhou Rui Ping
Published: November 2010

In this paper, gear-shafting system dynamics theory has been introduced into the torsional vibration calculation of the marine propulsion shaft and the vibration equations of a marine gear-shafting system were established using the lumped parameter model by taking the gear-shafting system in marine propulsion shaft as the research object. In order to solve the problem of vibration equation, dynamic simulation has been done in MATLAB software, in which the natural frequency of the system has been obtained from the simulation curve by changing the input frequency, meanwhile, the conclusion that the gears pair comprehensive meshing error is independent of the system natural frequency has been achieved. Thus, the analysis method presented in this work is available for the torsional vibration calculation of the marine gear-shafting system.
The Insulator’s Pollution Raining Flashover Forecast under GARCH-Based Forecast of Rainstorm Disasters1
Authors: Yi Jun , Yang Hong Ming , Lai Ming Yong , Li Shu Kui
Published: November 2010

In this paper,it proposes insulator flashover probability prediction model based on Markov chain and ARMA-GARCH. It provides a foundation for risk evaluation of rainstorm of power system. First,this model daily precipitation forecasting model which combined Markov chain with ARMA-GARCH based on self-dependency and time-varying of atmosphere factor; and then according to rainfall’s impact on insulator’s pollution raining flashover,the paper raises the probability prediction model of insulator flashover;Ultimately, we can predict the insulator flashover’s probability. Through Historical data of Hunan Grid to calculate the probability of flashover, and compares with the actual situation it shows that the method can achieve rapid, accurate prediction of power insulator flashover probability.
Control System Based on PLC and Touch Screen for Energy-Saving in Public Lighting
Authors: Zhu Shu Xian , Wang Bang Fu , Zhu Xue Li , Guo Sheng Hui
Published: November 2010

PLC dynamically adjusts power voltage by controlling switches of transformers with different combinations, which is based on the theory of 8421, and makes voltage changes in a very small range. By using this system, energy is saved, and the damage of illumination equipment from voltage instability is greatly reduced, and the life of lamps is effectively extended. Meanwhile, by using the touch screen, this system not only can realize the real time parameter display, but also achieve the real time operation on the panel.
Economic Evaluation and Chaos Control of Dynamic Cournot Game in Power Market
Authors: Wang Ying , Zhang Meng , Yang De Lun
Published: November 2010

The dynamic model of Cournot game with bounded rationality in power market is established. The different dynamic behaviors are analyzed, such as Nash equilibrium, period and chaos. The economic performances of dynamic behaviors are analyzed and compared for duopoly dynamic Cournot game. For the chaotic market status which has lower economic efficiency, the parameter perturbation control method is proposed. Finally, by means of the proposed control method, the chaotic state is controlled to the stable equilibrium point so that the economic performance of power market is effectively improved.
Hybrid Effect of Carbon Fiber on Piezoresistivity of Carbon Nanotube Cement-Based Composite
Authors: Luo Jian Lin , Duan Zhong Dong , Zhao Tie Jun , Li Qiu Yi
Published: November 2010

Cement-based nanocomposite filled with only 0.1 wt.% multi-wall carbon nanotube (MWNT) (MNFRC), or hybrid with 0.1 wt.% MWNT and 0.5 wt.% microsized short carbon fiber (SCF) (SF/MNFRC), were prepared employing surfactant ultrasonic dispersion and high-speed mixing process. The electrical resistivities (ρ), compressive stresses (σ), and longitudinal strains (εl) of these cured nanocomposites under cyclic uploading/unloading were simultaneously collected, to characterize their stress/strain-sensitive properties. There exists good piezoresisitivity and high strain sensitivity for MNFRC. The fractional change in ρ (Δρ) regularly descends or ascends following the σ, or the εl of MNFRC (the Δρ/εl sensitivity near 68). Hybrid of SCF is found to be more effective to improve the self-sensing repeatability and variation stability of the SF/MNFRC rather than the self-sensing sensitivity (the Δρ/εl sensitivity only about 64).
A Multi-Objective PSO Algorithm for Energy-Efficient Scheduling
Authors: Yang Tian Qi
Published: November 2010

Based on the basic model of economic dispatch and energy-efficient power generation scheduling rules, the multi-objective optimization model of energy-efficient scheduling is given. The model is transformed into unconstrained optimization problem by means of penalty factor and the dynamic penalty function, and then solved by PSO algorithm. The results obtained demonstrate the rationality and effectiveness of the proposed model.
Application of Probabilistic and Interactive Information in Verifying Machine System and Kernels Based on Relational Modality
Authors: Li Dong Ping , 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). It is concluded that, using probabilistic and interactive information and based on relational modality, the machine system and kernels are verified, which is widely used in the future.
Virtual Serial Port in the Construction of the CAN-Bus Network Technology Research
Authors: Tu Li , Liu Jun'an , Song Juan Juan
Published: November 2010

This paper Introduces a simple and reliable method to connect an ordinary twisted pair RS-232 up to 2048 devices and transmit the communication data more than 10 kilometers by using ZLGCAN interface card, CAN232MB converters and other equipment. The virtual serial port server makes use of CAN-bus network for data communications, guaranteeing the reliability of communic-ation, improving the RS-232 transmission distance, and simplifying the wiring process. Meanwhile user’s operation of the virtual serial port and a standard PC are compatible with the basic serial port operation. However, if there is a large number of continuous transmission of data to the case, the ac-tual serial data transfer rates is determined by the number of virtual serial port.
Construction and Application of Hierarchical Knowledge Granularity
Authors: Liu Chun Feng , Feng Li
Published: November 2010

As one aspect of granular computing, hierarchical knowledge granularity can speed up solution, and reduce computational complexity. This paper describes the structure and hierarchy analysis of granularity simply, details the current methods of construction algorithms in granular computing, and emphasizes the performance comparisons of various construction algorithms, and finally reviews the applications of knowledge granularity in rule extraction, attribute reduction, cluster analysis, optimization theory, neural network and fuzzy control and so on.
New Problems and Solutions for Accounting in Internet
Authors: Wang Na
Published: November 2010

With the development of information technology, accounting attracts more and more peoples' attention. In this paper, we proposed the impact of network technology for accounting. This paper focuses on the design and implementation of some key techniques for accounting in the Internet. Simulation results are presented and have verified the validity of the proposed strategy
Wind Load Monitoring System Based on ZigBee Technology
Authors: Li Zong Xing , Ding Jian Ning , Yan Chao , Wang Bing
Published: November 2010

A wireless sensor network system is put forward that is applied in the field of monitoring wind load based on ZigBee technology. The hardware of the system adopts the SOC chip CC2530 as the core of the wireless communication model, and its front end CC2591 to extend the communication distance so as to reach the requirement of the specific application. In addition, the data acquisition model chooses pressure sensor monitoring wind load which connects to the microcontroller on the wireless communication model. The system software introduces sleep mode to realize the low power consumption when there’s no task in the system. The system is designed to monitor colossal buildings in typhoon situation, which will be applied to monitor the wind load on the cooling tower in power station soon.
A Porous Carbon Prepared by Using a Mordenite Mineral as Template and its Cyclic Voltammetry Study in H2SO4
Authors: Liu Gui Yang , Li Yan Nan , Guo Jun Ming , Wang Bao Sen
Published: November 2010

A natural mordenite mineral has been used as a template to prepare a templated carbon. X-ray diffraction (XRD), nitrogen adsorption, scanning electric microscope (SEM) and cyclic voltammetry (CV) are used to analyze the phase composition, pore structure, micro morphology and electrochemical performance. The specific surface area of the templated carbon is 724m2/g, and the mesoporosity is high to 63.8%. In H2SO4 medium, the carbon has large capacity and good rate capability. The capacity of the carbon decreases from 103 to 94F/g (the capacity remains more than 92%) when the scan rate increases from 10 to 200mV/s. The CV curve of the templated carbon exhibits rectangle-like shape, and the shape keeps well at high scan rate.