bluuebunny/crossref_metadata_2025 huggingface dataset:
A Picture Filtering Algorithm Used in Mobile 3D Face Modeling System
Authors: Wang Qiang , Wang Wen Dong , Wang Kong Qiao
Published: June 2013

Three dimensional modelingis an important issue in the field of computer vision and computer graphics.And because of its universality and usability, human face is one of the mainfocuses of three dimensional modeling. At the same time, the wide spread of mobile internet makes people’s demand of mobile-working and mobile-entertainment become larger and larger.Based on this background, this paper designs and implements a mobile environment compatible 3Dface modeling system based on client-serverarchitecture, and proposes a solution to handle the useless and redundantface data during the pre-processing period of face modeling based on the frames’ continuity assumption.
Design of Assistance System Based on OpenCV for Color-Blindness
Authors: Feng Zhan Rong , Wang Li Xia , Zhao Gang Yao
Published: June 2013

With the wide application of image processing as well as continuous improvement of processing means, carrying out rotation transformation of H component of the color space with OpenCV can improve the resolution for color and make up for the color discrimination capacity of the achromat effectively. Experiments have shown that when the type of color-blindness is given and the colors of the image are confusing for the given achromat, rotate the H component by 105~130°, the achromat can identify the colors well.
Triple-Network Convergence of Power Lines as a Transmission
Authors: Li Chen Wu , Zhang Jian , Xie Qin
Published: June 2013

By analyzing the transmission characteristics of power line and the orthogonal frequency division multiplexing (OFDM) communication system, the concrete scheme of triple-network convergence based on the transmission medium of power line was given out. The Methods of constructing the intelligent triple-network convergence based on the OFDM technology, the system model and the hardware realization methods of power line communication system based on the DSP chip were given. Combining the latest OFDM technology, the channel coding technology and the modulation and demodulation technology in the power line communication system were researched, and new technology to high-speed data transmission on the radio channel was achived. And the simulation results of system design was given.
Sparse Signal Recovery Based on Simulated Annealing
Authors: Liang Rui Hua , Du Xin Peng , Zhao Qing Bo , Cheng Li Zhi
Published: June 2013

Sparse signal recovery is a hot topic in the fields of optimization theory and signal processing. Two main algorithmic approaches, i.e. greedy pursuit algorithms and convex relaxation algorithms have been extensively used to solve this problem. However, these algorithms cannot guarantee to find the global optimum solution, and then they perform poorly when the sparsity level is relatively large. Based on the simulated annealing algorithm and greedy pursuit algorithms, we propose a novel algorithm on solving the sparse recovery problem. Numerical simulations show that the proposed algorithm has very good recovery performance.
Parameter Matching Research of On-Board Synergic Electric Power Supply System Based on Secondary Development of ADVISOR
Authors: Zhang Jing Ming , Wang Hui Lin
Published: June 2013

Taking a series-parallel combined hybrid city bus as the prototype, the synergic electric power supply system (SEPS system) consisted of Ni-Mh battery pack and ultra-capacitor(UC)pack was designed to replace the original single electric power source which was battery pack. The element parameters were determined. By secondary development of ADVISOR, the simulation model and control strategy of the SEPS system and then the vehicle simulation model were built. Then the paper combined the ADVISOR with genetic algorithm to find the best capacity values of the battery pack and UC pack. The simulation results show that the vehicle with SEPS system can reduce the charge-discharge current of the battery pack, recapture more energy when braking which means better safety and fuel economy for the vehicle.
The Power Tracking Control Design for Wind Power Generation Systems with DFIG
Authors: Shi Bing Jie , Wang Yin He , Wang Qin Ruo , Gao Zi Lin
Published: June 2013

Because of the complex structure and the changeable parameters of the DFIG and the shortcomings of the traditional PI controller, a new nonlinear P+C (C for constant) controller is raised to achieve the active power and reactive power decoupling control. The simulation results show the validity, effectiveness and robustness of the method in this paper.
The New Identification Method for Low Frequency Oscillation Mode in Power System Based on Prony Algorithm and Neural Network
Authors: Tang Ying Jie , Tang Ying Jun , Xie Xin Liang
Published: June 2013

This paper presented a new improved Prony algorithm based on neural network to train weights.The algorithm solved some problems that difficulty and low precision during matrix inversion in Prony method. According to real-time transform characteristics of low frequency oscillation in power system, the algorithm used limited data windows in on-line parameter estimation and pattern recognition, and improved pattern recognition precision. The simulation results proved that this proposal algorithm has some features of directly ,effective, high reliability, less calculation amount and minor error when it be used to analysis oscillation characteristics and mode identification. So it is suitable for identification of low frequency oscillation mode in power system.
A New Power Train System of Electric Hybrid Vehicle
Authors: Wang Ren Guang , Yang Zhen Lin , Zhang Lin Tao , Yu Chao , Shi Guang Kui , Chen Heng Tao
Published: June 2013

A new hybrid power train using variable displacement pump/motor was developed for electric vehicle. It mainly includes engine, brake, clutch, variable displacement pump/motor, hydraulic accumulator, output gear, planetary gear set, controller. The planetary gear set, brake, clutch, output gear, power output shaft are integrated to form power split and coupling mechanism. In this new power train, the hydraulic variable displacement pump/motor is used instead of the electric generator/motor with different operation modes, which are pure hydraulic motor driving, pure engine driving, parallel hybrid driving, and compound hybrid driving.
The Transmission of Locomotive Overspeed Information from Speedometer to USB Flash Drive Based on CH376
Authors: Jia Shi Sheng
Published: June 2013

A device, which can be called locomotive speedometer, is discussed. Its main controller is STC89C58RC, USB interface chip is CH376S, display is LCD12864, clock chip is DS1302, and its memory is AT24C64. The result shows that the speedometer can show the corresponding information such as speed, time and date, store the messages in the memory, and transmit them to the USB Flash Drive correctly. Its parameters can be set easily though the keys if necessary. The locomotive speedometer has been applied on coal mine locomotives successfully.
A Time-Varying MIMO Generalized Minimum Variance Controller for Servo Application
Authors: Li Zheng , Wang Guo Li
Published: June 2013

A generalized minimum variance controller is developed for multiple input and multiple output systems having time-varying dynamics. The plant to be controlled is described using a controlled autoregressive moving average model and the control objective is to minimize a generalized minimum variance performance index for servo applications.
Research on Chaotic and Control of the Rolling Mill Main Drive System
Authors: Li Xiao Ying , Zhang Rui Cheng , Shi Tao , Cheng Jia
Published: June 2013

Rolling mill as a class of key iron and steel industry metallurgical equipment, responsible for the national production of heavy plate strip, its productivity and product quality of course become the focus of attention. In a large rolling mill equipment, rolling mill drive system as the interface with the electrical system, electrical energy into mechanical energy, and rolled steel production process to meet the torque and speed required for high precision and high dynamic control performance. In this paper, plate and strip rolling mill of the early nonlinear dynamic system as the research object, through theoretical analysis, numerical simulation and experimental study, done the following work.For the beginning of the process of rolling mill main drive system of the nonlinear characteristics of chaotic motion, through the theoretical analysis has proved that the original vibration system to become passive equivalent non-linear systems, the use of passive non-linear system characteristics, a class of moving boundary mechanical vibration system to exert control over the chaotic behavior, simulation experiments show that the control strategy is not only achieved rapid control of the system, and control is simple, easy to achieve.
Thickness Calculation of Roof Sloping Layer
Authors: Wang Qi Heng
Published: June 2013

Sloping layer is an important level of Flat Roof. It usually have both slope and heat insulation double function. Its thickness is obtained through energy conservation. But because its thickness is variable, in engineering practice it is difficult to accurately determine the thickness. The sloping layer thickness depends on the requirements of the roof energy saving. It is important to thoroughly analyze the principle of roof heat transfer and to establish the mathematical model of roof heat transfer. Then through rigorous mathematical calculation, the common law of how to determine the sloping layer thickness can be summed up. According to the slope gradient, slope length and layer thickness calculation value, the maximum thickness and the minimum thickness can be ultimately determined.
Fuzzy Adaptive Integral Sliding Mode Control of Suspension Altitude for Single Maglev Guiding System in Linear Elevator
Authors: Hu Qing , Du Hong Bin , Yu Dong Mei
Published: June 2013

The fuzzy adaptive integral sliding mode control is used, take advantage of sliding mode switching surface weaken the steady-state error and improve robust performance and the precision of steady-state of single maglev guiding system. the output of fuzzy adaptive controller is used to replace the output of switch control for the chattering problem of sliding mode control, and the adaptive control is introduced to estimate and adjust the fuzzy and clear gravity center value. Simulation results show that system achieves good performance with strong robustness.
Sliding Mode H∞-Control with Stochastic Time Delay Systems
Authors: Kumar Ravi , Chong Kil To
Published: June 2013

In this paper, we concerned the problem of sliding mode of-control with stochastic stabilization of uncertainty. Some sufficient conditions are derived for this class of robust feedback stabilization of time delay systems. The stochastic time delay systems may switch from one to one corresponds of linear filter, such that the dynamics of estimation error is guaranteed to be stochastically stable in mean square. Moreover, it is shown that for a class of special linear stochastic neutral systems, the H-sliding mode control design can be obtained by solving linear matrix inequalities (LMIs).
Study on the Method to Create the 3D Arterial Trees of Human Tongue
Authors: Xie Hai Wei , Zhang Yan
Published: June 2013

Simulation of the 3D temperature field of the organism as the arterial tree is taken as a heat source is an accurate way to calculate the bio-heat transfer. Based on the corrosion casts of real arterial tree of human tongue, a vessel model tree is grown by a stepwise method. Firstly, the profunda lingual artery and the branches of first level were constructed by statistical rule. And then else arteries were modeled based on physical laws and optimization criterion. The arterial tree of human tongue formed by the stepwise method is compared with the corrosion cast of real arterial tree. Result shows that this arterial model tree is in good agreement with the actual structure of arterial tree of human tongue. This method can substitute the vessel cast experiment, and can create arterial trees with different configuration which is the basis to research the process of heat transfer of organism deeply.
A Technology of CNC Punching of Chinese Characters
Authors: Kang Chang Lin , Yao Bin , Zhang Dong Sheng
Published: June 2013

The punching process with CNC is getting more and more important in the modern metal stamping field. But it is still difficult to realize NC punching the Chinese characters in manufacturing. Furthermore, it is expensive for processing forms of Chinese characters like thread cutting, laser cutting, etc. In addition, the ability to process the characters in a large size is restricted by the efficiency and the size of the machine. Therefore, this paper shows the details about programmable automation which is used in the characters processing on CNC punching machine. The content includes: getting the font parameter of character from DXF file, building the curve function for contour of characters, and creating G code for NC punching process. This technic provides a new method on processing big-size Chinese characters. And this technology can improve the efficiency and precision, and reduce the distortion of contour gotten by traditional program.
Study on Microstructure and Formability of DP Steel of Lightweight Automobile
Authors: Wu Jin
Published: June 2013

Dual phase (DP) steel is a high strength steel for auto-panel. In this paper, mechanical property, forming ability of high strength steel DP450 are studied by experiments and compared with those of steel MS6000. And theoretical research on predicting the forming limit of steel DP450 by the NADDRG model. The established mathematic model for relativity is of practical usefulness. Experimental results reveal that the yield strength of steel DP450 is about 7.2% lower than the MS6000, and the break strength increases by 18.9%, while the elongation increases by 19%. The results show that mechanical property of high strength steel DP450 is better than that of MS6000, while forming ability of DP450 is not lower than that of MS6000.
T-S Fuzzy Model and Optimal Reaching Law-Based Sliding Mode Control for Nonlinear Trajectory Tracking
Authors: Wang Jun Xia , Zhu Qun Xiong
Published: June 2013

A novel sliding mode controller based on Takagi and Sugeno (T-S) fuzzy system model and optimal reaching law is presented to design the output tracking controller for the nonlinear system. The T-S fuzzy logic theory is used to build a global fuzzy state-space linear model, the sliding surface is defined by using pole assignment method, and the optimal switch control law which can drive the state variables to the sliding surface as soon as possible is designed under the condition of minimizing the defined cost function. The gains of optimal switch control law designed by using fuzzy logic algorithm alleviate the chattering phenomenon. Lyapunov equation is applied to prove the stability of controlled system. The simulation results show that the proposed approach can achieve nonlinear trajectory tracking with better performance and less chattering problem.
α-Stabilization Criterion for Networked Control Systems
Authors: Wei Li Sheng , Mei Zhi Hui , Jiang Ming
Published: June 2013

This study focus on α-Stability constraints for uncertain networked control systems (NCSs) subject to disturbance inputs, where the network transmission is connected with time-delay and packet dropout. The overall NCSs model is derived. In order to obtain much less conservative results, the sufficient condition for feasibility is presented in term of 2nd Lyapunov stability theory and a set of linear matrix inequalities (LMIs). This LMI approach can be the optimization problem of computation of the maximal allowed bound on the time-delay for NCSs.
Assessment Model of Accident Emergency Management System Performance for Chemical Industrial Park Based on Immune Mechanism
Authors: Chen Qing Guang , Chen Guo Hua , Ye Qing
Published: June 2013

Chemical accidents happen in workplaces all around the world. To improve the accident emergency management system is an important methodology to reduce the casualty and loss caused by accidents. In the light of the principles of immune system, the paper tried to analyze the accident emergency management system of chemical industrial park. It elaborated the similarities between immune system and accident emergency management system in the aspects of their existing environment, action object, function and adjustment mechanism. Immune mechanisms were used to formulate the assessment indexes of accident emergency management system performance. Inspired by immune system that keeps the living body healthy in “no antigen condition” and “touching antigen condition”, the assessment index system was formulated from the perspectives of “non-emergency condition” and “emergency condition”. Through the improved analytic hierarchy process, the weights of assessment indexes were calculated. Furthermore, the linear weighted model was applied in the building of the assessment model, which was then used to analyze the accident emergency management system of a chemical industrial park in Guangdong province, China. Through the data from expert investigation questionnaires, the scores of nine assessment indexes reflected accident emergency management system performance were obtained. The result showed that the model is helpful in analyzing the accident emergency management system performance and in improving the accident emergency management system in chemical industrial parks.
Fault Diagnosis Method for Rectifier Circuit Based on Self-Organizing Map
Authors: Shen Run Xia , Lu Yi Min , Liang Qian Qian
Published: June 2013

Fault feature extraction and recognition play crucial role in fault diagnosis. In this paper, a fault diagnosis method for three-phase fully-controlled bridge rectifier circuit based on Self-Organizing Map network is proposed. The method utilized the three phase AC input current as fault detection data. Then, perform spectrum analysis with the FFT, the fault data is trained through a Self-Organizing Map network for diagnosis. Simulation and relevant experiment verifying the proposed algorithm can classify various types of power electronics device faults accurately and rapidly.
A Novel Clustering Ensemble Method Based on One-Class Support Vector Machine
Authors: Gu Lei
Published: June 2013

A clustering algorithm based on one-class support vector machine has been proposed recently. Because the kernel technique is used, this approach can appear preferable to the traditional k-means clustering. Clustering ensemble method can combine several divisions of all unlabeled data into a single clustering to gain the better clustering results. In this paper, the clustering ensemble method is applied to the clustering algorithm based one-class support vector machines. Several partitions of multiple runs with different random initial data sets are combined into a final clustering result. Experiments show that the new approach can improve the clustering performance.
Application of Fuzzy Control Technology in a Sonar-Based Obstacle Avoidance Intelligent Wheelchair
Authors: Su Ting , Cao Guo Hua , Hu Ji Hua
Published: June 2013

The paper presents a kind of application system combining fuzzy control technology and ultrasonic obstacle avoidance technology for the intelligent wheelchair (iwheelchair). The system use the ultrasonic measured-distance as the input signal and the output signal is the speed of the iwheelchair to avoid obstacle. The fuzzy controller is designed in Matlab platform and simulated according to the obtained fuzzy control strategy. The fuzzy control technology has been applied successfully in ultrasound obstacle avoidance system for the intelligent wheelchair.
Terminal Airspace Sector Optimum Partition Based on Way Points
Authors: Luo Jun , Lv Huan Liang
Published: June 2013

Abstract. In order to reduce air traffic controller workload, optimized terminal sector partition was studied. The terminal way point capacity evaluation model was built, power polygon divided the terminal area into several units according to the vital way points, each unit workload could be calculated by the European method “RAMS”, and the sector optimum mathematical model was built. One improved ant colony optimization was adopted to solve the model. At last, an example of one terminal airspace sector partition was given. The results show it is an effective method to be applied into sector optimum partition based on way points.
Study on the Mechanical Abrasion of the Filter Bags
Authors: Li Dong Mei , Gong Xiao Jie , Wang Feng Chao , He Mu , Tang Guo Peng
Published: June 2013

In this paper, we have studied the mechanical abrasion of the filter bags used in Electrostatic-fabric Integrated Collector (EFIC) and baghouse systems. Four factors have been listed: the effect of improper structure design and installation, the effect of quality of filter bag and poor filter cages. Common problems have been discussed, and the corresponding advices have been proposed.
A Route Optimizing Model and Algorithm for Pickup and Delivery Problem with Time Window
Authors: Wu Ting Ting
Published: June 2013

Choosing in the more practical soft time Windows the logistics pickup and delivery path choice is discussed. Setting up a more comprehensive model to get the minimum cost including the distance and time. Then improving the genetic algorithm to solve the vehicle routing optimization problems better.
Genetic Algorithm Applied to the Selection of Factors in Principal Component: ASQR Study of Aromatic Hydrocarbons Toxicity to Chlorella Vulgaris
Authors: Yang Sheng Long , Wu Yang , Wang Cui Hua , Yu Hong Xia , Wang Lian Sheng
Published: June 2013

Marine ecosystems are affected by aromatic hydrocarbons. The predicting ability based on the quantitative structureactivity relationships (QSAR) model of unknown aromatic hydrocarbons toxicity is one of the tasks of security precaution. To establish the QSAR model between the physical and chemical properties of aromatic hydrocarbons and the inhibited activity of Chlorella vulgaris(C. Vulgaris), the optimized geometries, based on the 96 hr-EC50 of 25 aromatic hydrocarbons with C. Vulgaris were carried out at the B3LYP/6-311G** level by density functional theory (DFT) calculation. With matlab2 010(a) software, genetic algorithm principal components regression (GAPCR) methods was used to develop the QSAR model and compared to traditional PCR model. PC1+PC3+PC5+PC6+PC8 were finally selected by GAPCR method. The of training, prediction data set and LOO cross validation are 0.918, 0.956 and 0.933, respectively. Meanwhile, the results of PCR were 0.949, 0.755 and 0.825, respectively. The results of this work showed that the GAPCR method has great results and good generalization capability. Comparing two motheds results indicting that GAPCR gives superior results to traditional PCR procedure.
Automatic Algorithm of Effectiveness of Accounting Management Systems Based on Genetic Algorithm
Authors: An Chunming , Li Yin Xing
Published: June 2013

The right panel drawing direction is an important prerequisite for generating qualified parts, an important step before the panel forming simulation is to determine the reasonable direction of the drawing. Manually adjust parts in order to overcome rely on experience, the drawbacks to the drawing direction, the direction of the drawing punch and forming the contact area of the sheet as the goal of automatic determination algorithm. Objective function of the direction of the drawing for the variable contact area in the drawing direction of the feasible region, the use of heritage algorithms to optimize the objective function of the contact area and, ultimately feasible within the contact area corresponding to the drawing direction, that is the best drawing direction. The measured results show that the direction of the drawing based on genetic algorithm, the automatic algorithm can fast and accurate to obtain the optimal direction of drawing.
Optimizing Mining Association Rules of Japanese Literary Characteristics Based on Artificial Neural Network
Authors: Tie Chen Guang
Published: June 2013

Literatureis a kind of cultural historical stage of development to the most full ofvitality shone forth a glorious reflection of the cultural and social Hainan period as the heyday of Dynasty Women Current Literature.The prosperity of the Japanese literature of the Hainanperiod women to create the miracle of the history of Japanese literature, andeven the history of world literature. Learn from foreign cultures at the sametime, the Japanese created their own unique literary genre, such as Storyliterature. From domestic colleges and universities of the Japanese literatureclass status quo, analyzes the problems in the teaching of Japanese literaturefrom four aspects of teaching students of teachers and teaching and thesurrounding environment, to discuss current problems in the Japanese literatureclass.
Research on Determine of Intelligent Cold Roll Forming over Bending Angle
Authors: Li Guo Chang
Published: June 2013

Precise pass design requires roller flower design, mainly precise and accurate over bending angle design. Accurate over bending angle calculation is not mature still now. We can be calculated according to the material properties of the steel strip, over bending angle, the parameters in formula of over bending angle to establish over bendinng angle selecting expert system. And we can also use Artificial Intelligence Methods to select over bendinng angle and precise hole design roller flower diagram.
Mobile Cloud Computing: Architecture and Security
Authors: Wang Su Zhen , Du Zhi Juan
Published: June 2013

This paper proposed a mobile cloud computing architecture based on mobile Agent paradigm for the problems faced by the mobile cloud computing, for example, application migration on network, network latency and non-persistent connection issues caused by execution on the remote device, cloud-crossed service problems, and security risks and privacy issues. In this architecture, Contract Net Protocol is optimized and used in the synergy among the mobile Agent. Mobile Agent is authenticated by exchanging keys, where the exchange key uses ideas of quantum teleportation based on multiple particle orthonormal direct product state. Furthermore this paper describes the workflow of this architecture by colored nested Petri nets.
Application of Color Transfer Algorithm in the Virtual Color Restoration of Ancient Architecture
Authors: Qi Su Min , Xu Ran
Published: June 2013

An automatic human motion tracking algorithm based the connection between the improved Snake model and optical flow arithmetic is proposed. The initial contour most close to human body is acquired by corner detection arithmetic, which decreases the iterations and reduces the probability of converging at local extreme value of Snake model. Because the tracking with Snake model is unstable and often loses the object, the good feature points are chosen from the contour points in current frame for optical flow estimation. Then the result is chosen as the initial contour in next frame. Experimental results show that improved Snake model can be deformed to the actual human body contour, and the automatic and real-time human tracking is implemented.
The Application Research on Improved Divide-and-Conquer Mixed Selection Algorithm for Arrangement of Examination Seat
Authors: Cao Shu Guo , Song Yong Lei
Published: June 2013

Exam arrangement is an important daily work of examination management and examination affairs. Scientific, reasonable, efficient test schedule, have very important meaning for improving the reliability of the examination. Based on the daily examination of the relevant examination seat layout requirements, this paper presents an efficient improved divide and conquer mixed selection algorithm and achieves good results in practical applications.
The Structure and Properties of a Class of Affine Subspaces and Applications in Mechatronics Science
Authors: Song Su Luo
Published: June 2013

Information science focuses on understanding problems from the perspective of the stakeholders involved and then applying information and other technologies as needed. We show that every affine subspace is the orthogonal direct sum of at most three purely non-reducing subspaces. This result is obtained through considering the basicquestion as to when the orthogonal complement of an afffine subspace in another one is still affine subspace. Motivated by the fundamental question as to whethor every affine subspace is singly-generated wavelet frame, we prove that every affine sub -space can be decomposed into the direct sum of a singly-generated afffine subspace.
Application of Fuzzy Information Optimization Technology on Analysis of Loess Landslide Stability
Authors: Peng Shu Jun , Ma Yan , Wang Jia Ding , Xie Wan Li
Published: June 2013

The fuzzy information optimization method is applied to the loess landslide stability analysis. Based on the laboratory tests and field investigation, considering the influence of the five main factors such as cohesive force, internal friction angle, the landslide slope landslide, height and earthquake ground motion parameters of the loess landslide, the fuzzy information optimization method like information distribution, information focus and other methods were used to evaluate the stability of loess landslide. The results show that the result of assessment was in accord with the actual condition. The evaluation method is applicable to the loess region. Compared to the limit equilibrium method, it improves engineering economic benefits.
Research on the Cloud Manufacturing Network Model Based on Group Technology and Extensible Markup Language
Authors: Yi Shuang Qing , Pan Fei Yu , Kong Xiang Han
Published: June 2013

To solve more complex manufacturing problems and simplify the processes of production organization,a Cloud Manufacturing network model based on Group Technology and XML was proposed ,which gave the network model the ability to analyze semantic information and process GT data,and the relevant key technologies were discussed.In the end,the model structure, function advantages and operation principles of the network model were elaborated.
Regional Environment System Influence Factor Identification for Attracting Investments
Authors: Liu Wen Wei , Duan Wan Chun , Du Yuan Wei , Li Na
Published: June 2013

System Elements Identification of the regional investment environment is playing an increasingly important role in capital attraction; therefore it is essential to make it clear of the elements identification principles which include the principles of scientific, systematic, comparability, practicality, independence, targeted and so on during the whole elements identification process. The divident of the system affecting elements should be on view of economic development subsystem, the social and cultural subsystem, the infrastructure subsystem, the subsystem of the political and legal, physical geography subsystem. Meanwhile, the complicated correlation influence relationships among the internal elements which attached to the various subsystems should be indicated.
Analysis the Significant Hazards Monitoring and Early-Warning Technologies in Cities
Authors: Luo Ze Min
Published: June 2013

This paper elaborates the necessaries of using high-tech means to monitor and early-warn significant hazards, introduces the main contents for monitoring and warning technologies, discusses the organization structure for monitoring and early-warning significant hazards system, proposes corresponding accident emergency prevention plans.
A Novel Approach for C4ISR Requirements Elicitation
Authors: Wang Zhi Xue , Si Xu Guang , Zhu Zong Ke , Wang Qing Long , Hu Bo , Yu Ming Gang
Published: June 2013

The capability-oriented requirements elicitation is an emerging research topic of requirements engineering, especially for complex system such as the C4ISR system. One of the problems is that the capability requirements are usually articulated in natural languages and need to be formally specified to support enterprise architecture analysis. The paper proposes a framework for modeling the domain requirements of C4ISR capabilities and suggests an extended UML modeling technique. As the modeling framework accords with the standard DoD Architecture Framework, the proposed method may populate C4ISR architectural analysis.
Study on the Relationship between Urban Surface Temperature and Vegetation Index in Xuchang City
Authors: Li Jing Zhong , Zheng Jing Gang
Published: June 2013

Urban surface temperature distribution is closely linked to its ground vegetation cover. Determining the correlation between the urban surface temperature and its ground vegetation has an important role in the urban surface temperature improvement and the urban environment optimization. This paper selects the TM data in the summer of 2009 to obtain the normalized difference vegetation index (NDVI) and selects 129 samples in the seasons acquired by the images to do the actual measurement of the surface temperature. Then it analyzes the quantitative relationship between the surface measured temperature and normalized difference vegetation index finding out that there exists a negative correlation; Their regression fits to obtain the type of relationship: Ts = 37-14.64 * NDVI. The identification of the correlation between the urban temperature and vegetation index provides a relatively reliable theoretical basis and technical support to the urban planning, and urban ecological environment construction.
LoBa-Min-Min: The Grid Resources Scheduling Algorithm Based on Load Balance
Authors: Zhang Zhong Ping , Wen Li Juan
Published: June 2013

In the grid environment, there are a large number of grid resources scheduling algorithms. According to the existing Min-Min scheduling algorithm in uneven load, and low resource utilization rate, we put forward the LoBa-Min-Min algorithm, which is based on load balance. This algorithm first used Min-Min algorithm preliminary scheduling, then according to the standard of reducing Makespan, the tasks on heavy-loaded resources would be assigned to resources that need less time to load balance, raise resource utilization rate, and achieve lesser completion time. At last, we used benchmark of instance proposed by Braun et al. to prove feasibility and effectiveness of the algorithm.
Solution for Data Growth Problem of MOLAP
Authors: Xu Jian , Luo Yong Qiang , Zhou Xin Xin
Published: June 2013

Because MOLAP uses Multi-dimensional database (MDDB) to store data, there are limits to implement OLAP, such as data growth. Also, there is a close relationship between the influencing factor of MOLAP data growth and OLAP model, and the models will influence the size of cubes, also the performance and expansibility of OLAP system. This paper studies the approaches of MOLAP data storage organization, aggregate levels of dimension, compound growth factor (CGF), the relationship of query performance and percentage pre-calculated, and giving a brief analysis to how to use CGF to ravel out the data growth of MOLAP.
Research and Design of Digitizing Mining-Oriented Real-Time Data Exchange Platform
Authors: Chen Zhuo Yan , Li Xu Jian
Published: June 2013

Real-time data exchange platform is of essential significance to achieving digital mining. This paper, based on a systematic introduction of the relevant technologies and functions of the real-time data exchange platform, proposes its architectural design and concludes with relevant research on the key technology of the system.
Association Rule: From Mining to Hiding
Authors: Wang Hui
Published: June 2013

Data mining is to discover knowledge which is unknown and hidden in huge database and would be helpful for people understand the data and make decision better. Some knowledge discovered from data mining is considered to be sensitive that the holder of the database will not share because it might cause serious privacy or security problems. Privacy preserving data mining is to hide sensitive knowledge and it is becoming more and more important and attractive. Association rule is one class of the most important knowledge to be mined, so as sensitive association rule hiding. The side-effects of the existing data mining technology are investigated and the representative strategies of association rule hiding are discussed.
On Steel Pipe Concrete Composite Column Construction
Authors: Chen Hao , Mo Yi
Published: June 2013

A landmark building is located in yuzhong zone , Chongqing . That there is 5 floors in the underground, 58 floors on the ground.And the total height is 272.4 meters. Combined with practical engineering focuses ,this paper introduces the steel tube-reinforced concrete column construction quality control points and difficulties.
A Multi-Functional Audio Digital Watermaking Algorithm Based on Wavelet-Packet Transform Research
Authors: Li Hong Yan , Wu Jia Quan , Ma Kun
Published: June 2013

A kind of multifunctional audio digital watermark algorithm was put forward according to the copyright protection of audio problems. The audio signal is layered three by wavelet packet decomposition and robust watermark is embedded in the low frequency part, fragile watermark is embedded in the intermediate frequency part. The experimental results show that, the algorithm has no sound very good, excellent robustness and fragility. In the actual use of the process, which not only guarantees the safety of audio information effectively , but also guarantees good audio information fidelity.
A Rapid Image Spam Recognition Method Based on Content Feature Fusion Decision
Authors: Yu Hong Tao , Li Xing , Cui Rui Fei
Published: June 2013

As a variation of spam, image spam can evade the text based filter simply and effectively. Based on the characteristic that this kind of mail is usually generated in manner of template and the image content under the same template are highly similar, this paper proposes a rapid method for identifying image spam by fusing content features. The layout features are first adopted to localize the spam speedily, and then the wavelet transform based content feature fusion decision algorithm is used to determine the spam accurately. The experimental results demonstrate that the proposed method is fast, accurate and practical.
Relationship between Algebraic Immunity, Correlation Immune and Propagation of Boolean Functions
Authors: Huang Jing Lian , Wang Zhuo , Zhang Chun Ling
Published: June 2013

Using the derivative of the Boolean function and thee-derivative defined by ourselves as research tools, we study the problem of relationship between algebraic immunity,correlation immunity and propagation of H Boolean functions with weight of and satisfying the 1st-order propagation criterion togetherwith the problem of their compatibility. We get the results , suchas the relationship between the number of annihilators and correlation immunityorder, the relationship between the number of correlation immunity order and algebraic immune degree together with theircompatibility and the largest propagations of H Boolean function, the relationships between propagationsof Boolean function, correlation immunity order and algebraic immune degree.
Willingness-Based Access Control for Mobile Terminals
Authors: Rao Da Heng , Jin Guang
Published: June 2013

This paper briefly describes the current security situation of the mobile Internet, compares the difference between mobile terminals and PC terminals in terms of security, and discusses the security-related research of mobile terminals. After analyzing the feasibility and expected effect of the implementation of access control in a mobile terminal, we propose a Willingness-based Access Control scheme for mobile Internet. We design and complete the pay function with variable difficulties on the basis of MD5. Then, we build an experimental environment with mobile phone programming, test the scheme and analyze the results. The conclusions are given in the final.
An Improved Algorithm of Adaptive Multi-Pulse AMR-WB PLC
Authors: Jia Jun Ying , Lin Hu , Sun Jian Wei
Published: June 2013

Packet loss is common in internet, when use IMS mobile terminal accessed by wireless to do real-time voice communication, the quality of speech is affected a lot. This text summarizes the basic principles of AMR-WB encoding and decoding algorithm and main technology of PLC. Based on AMR-WB encoding and decoding algorithm, it improves an algorithm of multi-plus PLC. The algorithm described in this text can speed up the recovery of adaptive-codebook by small bandwidth cost and effectively prevent the spread of errors, improve the quality of speech.
Energy Efficient Cross Layer STDMA Design in Solar-Powered Wireless Mesh Network
Authors: Xiang Chang Song , Li Geng , Li Qi Xu , Zhao Jin Jan
Published: June 2013

Energy efficiency is a major concern for mesh nodes with limited power supply. So STDMA(spatial time division multiple access) is applied to reduce node’s power consumption in mesh networks. However, the energy cost was still high for solar panel applying with STDMA, due to the fixed slots and numerous start times of nodes. A VF-STDMA(variable frame in STDMA) is proposed based on STDMA protocol. The VF-STDMA dynamically changes the frame size and assigns timeslots to each link according to the network data flows. The start times are reduced by recombining slots. Finally, the optimum routing is obtained through a cross-layer mechanism covering physical layer, MAC layer and network layer. The results show that the algorithms improve energy efficiency as well as decrease energy consumption of solar panel.
Experimental Characterization of Channel Selection and Multi-Hops in Wireless Mesh Network
Authors: Qin Zhen Quan , Li Xiao , Zhang Jia Ning
Published: June 2013

Wireless Mesh Network (WMN) is able to extend the coverage of the network infrastructure by multi-hop wireless connections between APs. However, full potentialities and limits of this new technology have still to be explored. In this paper, we design an experimental testbed to analyze the characterization of Channel Selection and Multi-hops in Wireless Mesh Network, we believe that the data collected by our experiments may be of interest to network designers who want to know the effective capabilities of a WMN before investing on its deployment.
Time and Frequency Synchronization for MIMO-OFDM Systems
Authors: Gao Jing Peng , Wu Chao Qun , Zhao Dan Feng
Published: June 2013

Any carrier frequency offset will cause a loss of subcarrier orthogonality which results in ICI and hence performance degrades severely in MIMO-OFDM systems. In this paper, a time and frequency synchronization solution for multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) systems is proposed. The synchronization is achieved using one Constant Amplitude Zero Auto Correlation (CAZAC) sequence-based preamble which is simultaneously transmitted from all transmit antennas in the same OFDM time instant. The synchronization is accomplished sequentially by coarse time synchronization, fractional frequency offset estimation, integral frequency offset estimation and fine time synchronization. The simulation shows that the proposed algorithm can estimate the timing and frequency offsets efficiently in MIMO-OFDM systems, especially in low signal-to-noise ratio condition.
Performance of an Improved MC-CDMA System Based on DT-OCWDM and Quasi-Orthogonal Matrix
Authors: Wu You , Wang Shuang , Zhang You Sai
Published: June 2013

In this paper, we propose a new improved MC-CDMA system which combines spreading codes from Quasi-Orthogonal Matrix with Orthogonal Complex Wavelet Division Multiplexing (OCWDM). The system is implemented by complex wavelet filters which are able to lower computational complexity and increase flexibility. Novel spreading codes from Quasi-Orthogonal Matrix can be expanded randomly. It can increase user number hugely in system. Improved MC-CDMA named OCWDM-CDMA has much higher frequency spectrum efficiency and high data rate than conventional MC-CDMA. The system also has better BER performance in Gaussian channel than conventional system for much more users.
Establishing Universities’ Fixed Assets Network Information Management Platform Based on RFID Technology
Authors: Peng Yun
Published: June 2013

The universities’ fixed assets has the characteristics of large amount and wide range of use, which lead to difficulty and intricacy of the assets management, so the original manual, stand-alone model cannot satisfy the needs of modern assets management any more. The automatic identification and related technologies can aid in the configuration of an RFID-based fixed assets management platform in universities, by providing the broadest range of solutions to track the assets in an intelligent and dynamic way, eliminating the traditional information lag, distortion, and discrepancies, etc., thus improving management efficiency and level.
Research on Motivations of Consumer Engagement in Online Brand Community
Authors: Li Da Hai
Published: June 2013

Drawing on the status of brand community research and the needs of enterprise practice, this paper explored the relationship between the motivation and the behavior of consumer engagement in online brand community from the consumer's perspective and concluded the driving forces of consumer engagement are social intercourse, information, entertainment, and benefit and achievement motivation. With factor analysis, motivation of consumers’ engagement in online brand community was studied to resolve the connotation underlying the brand community, which provides further reference for the company to select consumer-oriented strategy proposals on online brand community management.
Study on Data Mining Based Customer Management in E-Commerce
Authors: Zheng Qi
Published: June 2013

Today, businesses face the challenges of using the past to predict the future and using past experiences to communicate effectively with the customer. The purpose of this study is to find ways to study text data in order to discover more latent knowledge. There was not a good information system in place, and the structured data was sparse and overly dispersed. Data mining did not yield any significant discoveries, so the data analysis was indeed cursory. Therefore, the studys recommendations still focus on the execution process of complete customer relationship management and on establishing a more complete system loop in order to reinforce interactions with customers.
Study on Strategy for Maritime English Teacher Professional Development Based on E-Learning Community
Authors: Wang Tao
Published: June 2013

Maritime English is one of the most important specialized courses in the maritime colleges and universities. Both the educational department and the maritime administration authority put forward a high requirement for the teachers. However, the Maritime English teacher professional development is relatively weak in China. For this point, this paper tries to introduce the e-learning community into Maritime English teacher professional development, and propose some ideas for the Maritime English teacher e-learning community in China.