bluuebunny/crossref_metadata_2025 huggingface dataset:
The Application of APH Method in Enterprise Environment Performance Evaluation
Authors: Lin Zhi Hong , Yang Shuo
Published: December 2011

The modern industrial society is developing rapidly, but also with unprecedented speed destroy the environment.It is a serious threat to human survival and development. In order to reach more scientific and reasonable evaluation result, this artcle investigating from the environmental performance of enterprises, and through introducing the APH law[1], under the established environmental performance evaluation index system for enterprises, evaluate the environmental performance results. Then guiding enterprises develop environmental protection work correctly, to improve the environmental protection benefits.
Packet-Loss Distinguishing Based Link Adaptation Enhancement for Wireless LANs
Authors: Cheng Yuan , Fan Qiang , Tang Yun Shan , Miao Wei Wei
Published: December 2011

As we know, packet losses in wireless local area networks (WLANs) are due to collisions or link errors. In this paper, a new strategy that distinguishes the cause of packet losses in medium access control (MAC) layer is introduced. Based on the strategy, link adaptation algorithms, including the payload size adaptation algorithm and the data rate adaptation algorithm, are proposed and employed in WLANs. Simulation results show that both algorithms increase system throughput significantly.
An Improved Approach of Color Edge Detection Based on Robustness of Cell Neural Network
Authors: Jiang Qing Ling
Published: December 2011

For the disadvantage of cell neural network (CNN) method which can not directly deal with color images, we present a new color image edge detection algorithm according to CNN model. Through robustness analysis for CNN template, a CNN theorem be carried out which can compute in the RGB color space. The experimental results show that our approach can effectively carry out edge extraction and locates accurately.
Wireless Monitoring System in Family Environment
Authors: Zhu Lei , Zhang Gao Qiang , Zhi Wen Xia
Published: December 2011

Family living environment plays an important role in people’s daily life. But the living environment monitoring system is difficult and complex to wiring, the bulky equipment is difficult to carry and install. As for these problems, this paper puts forward a wireless family living environment monitoring system using radio frequency chip NRF24L01 for 2.4GHz band and C8051F microcontroller, the system’s hardware and software design is discussed in detail. The system uses C8051F microcontroller as the core controller, the wireless transceiver chip NRF24L01 transmits the data acquired by sensors in real-time. The environment information will display on the LCD screen when the center host receives data from wireless extension and the exceeded parameters are alarmed. The system has low power, no wiring and easy to move feature.
Multi-Frame Image Fusion Method Combining Spatial-Temporal Saliency Detection and NSCT
Authors: Peng Hai , Feng Hua Jun , Zhao Ju Feng , Xu Zhi Hai , Li Qi , Chen Yueting
Published: December 2011

We propose a new image fusion method to fuse the frames of infrared and visual image sequences more effectively. In our method, we introduce an improved salient feature detection algorithm to achieve the saliency map of the original frames. This improved method can detect not only spatially but also temporally salient features using dynamic information of inter-frames. Images are then segmented into target regions and background regions based on saliency distribution. We formulate fusion rules for different regions using a double threshold method and finally fuse the image frames in NSCT multi-scale domain. Comparison of different methods shows that our result is a more effective one to stress salient features of target regions and maintain details of background regions from the original image sequences.
Design of an Energy Collection UWB Receiver Using Novel Synchronization and Detection Scheme
Authors: Yue Ruan , Ying Tang
Published: December 2011

Ultra-wideband (UWB) is widely used in low power and low cost applications such as RFIDs. This paper presents a UWB receiver based on energy collection with on-off keying (OOK) modulation. A novel synchronization and detection algorithm using energy offset based scheme is investigated and proposed. This novel synchronization and detection scheme aims at reducing power consumption and simplifying hardware complexity of the UWB receiver. Simulation results and FPGA implementation are given, which reveal that the UWB receiver using proposed scheme can avoid complex and power consuming synchronization blocks, and reduce the preamble length in synchronization process, whereas maintaining performance in the target level.
Wireless Communications Radiation Monitoring System Based on ZigBee and GPRS
Authors: Wang Xiao Yu , Wang Zhao Guo , Xu Li Yuan , Chen De Yun
Published: December 2011

Aiming at the problem that the radiation monitoring system has high cost, big power consumption, and complex process of system constructing, a new wireless network radiation monitoring system is presented and implemented for radiation detection. This system adopts ZigBee technology and GPRS communication technology to realize the communication of real time data. Namely, this system uses ZigBee wireless protocol stack as control core, and adopts GPRS network as output transmission. Then build a FTP server to achieve the monitoring, statistics and alarm function of radiation dose.
Some Traveling Wave Solutions for the Boussinesq Equation
Authors: Feng Qing Hua , Wen Chuan Bao
Published: December 2011

In this paper, a generalized sub-ODE method is pro-posed to construct exact solutions of Boussinesq equation. As a result, some new exact traveling wave solutions are found.
Objective Evaluation System of Speech Quality Based HMM
Authors: Zhang Jing
Published: December 2011

It is of great significance that objective evaluation of speech quality in language self-learning. Aimed at the objective evaluation process of speech quality the thesis presented to build HMM model based speech feature MFCC of human auditory model, and to use different indicators to achieve the evaluation of phoneme, word and sentence. Effective solution was proposed for such issues as the initial model to select more sequence of observations to train HMM as well as data underflow encountered during practical application of HMM algorithm. According to some speech experts, the evaluation results achieved by speech quality evaluation system were objective.
The Experimental Research of Pollutant Diffusion Based on Image Processing
Authors: Ji Ai Guo , Shi Lin Yan , Wu Zhou Hu
Published: December 2011

A model of pollutant diffusion in the liquid is modified and validated based on experiments using image processing technology in the paper. By using the knowledge of field theory, the variation rule of diffusion and gray parameters was analyzed after the instantaneous images which had been pretreated. The pollutant diffusion model was validated in the research. The experimental results have shown that it is effective to investigate liquid pollutant concentration diffusion using digital image processing technology.
A Prototype for Smart Prosthetic Legs-Analysis and Mechanical Design
Authors: Liu Ming , Datseris Philip , Huang He Helen
Published: December 2011

In this paper, we designed a prototype of powered above-knee prosthesis. Compared with other prototypes available in the literature, our designed prosthetic leg employs a redundant actuator concept to overcome the challenge faced by the single-motor transmission systems. The redundant actuator also enables the prosthesis to be partially functional when the prosthesis loses power. Finally, in order to provide optimal control parameters for designed above-knee prosthesis to perform a smooth level-ground walking task, an inverse dynamic model based on Kane’s method is constructed.
Alignment of DNA Sequence Using the Features of Global and Local Algorithms along with Matrices
Authors: Sharma Kavita , Saxena Amit , Kumar Praveen
Published: December 2011

The algorithm generated is based on designing matrices in such a way that score matrix contains the maximum scores for alignment of the DNA sequences and the aligned sequences are generated by trace matrix generated based on the score matrix. The score matrix is initialized by using Smith – Waterman algorithm and the scores used for filling up the score matrix are calculated using Needleman –Wunsch algorithm.
An Improved Input-Output Pairing Method Based on Concept of Energy
Authors: Ahmadi-Tabatabaei A. , Fatehi A. , Khaki-Sedigh A.
Published: December 2011

In this paper input-output pairing is done based on concept of energy. Parseval theorem and cross-covariance samples of input-output are used for estimation of energy. After approximating interaction energy between input and output of the plant, input-output pairing is fulfilled. Through examples, it is illustrated that proposed method is appropriate for input-output pairing. The result is compared with Effective Relative Energy Array (EREA) as another energy based approach for input-output pairing.
Wind Energy Generation Interfaced System with Power Quality and Grid Support
Authors: Mohod Sharad W. , Hatwar Sudesh M. , Aware Mohan V.
Published: December 2011

The integration of the wind generator into the grid connected system becomes a challenge. The major problem is to have a dynamic reactive power support along with the controlled real power support from the source. In this paper a control algorithm is proposed to maintain the unity power factor of the source supply with no reactive power support from the source. The static compensator ( STATCOM ) is connected at a point of common coupling (PCC) with a battery energy storage system (BESS).The STATCOM and energy storage is interfaced with wind generating system, supporting the real and reactive power and also maintain the stable voltage at PCC and support the grid. The effectiveness of the proposed scheme relieves the main supply source from the reactive power demand of the load and the induction generator. The reactive power compensation by STATCOM with bang-bang controller with hysteresis based technique maintains the dynamic stability of the grid and matches the operating behavior of grid system. This scheme is simulated with a MATLAB/SIMULINK in power system block set, having interface of induction generator and non-linear load at PCC and performance is evaluated.
To Construct an Underwater Acoustic Communication Software with the Interface Technology between Vc++6.0 and Matlab2007a
Authors: Jiang Wei , Guan Jing , Zhou Hui , Wang Jing
Published: December 2011

Along with the development of the science, the communication technology has already developed from the traditional air to the outer space and submarine. So, the UAC is getting more and more attentions from the researchers for its business and military value. However the local hydrology environment and the weather must be considered when the actual UAC experiments are carried and the experimental cost is so expensive that it is hard to carry on enough experiments[1]. What’s more, There isn’t a software that can compare all these algorithms conveniently, although there are many algorithms nowadays for UAC[2]. This paper studies to construct a software which can combine many algorithms and compare them in one unified frame. Also the software can help us design actual experiment system to obtain more valuable data in limited time.
Philosophy Applying in Information Engineering
Authors: Liu Chun Yan , Liu Zhu Lin
Published: December 2011

With the computer software and technology continuously improving, because of various factors influencing, computer engineers are very tough on how to improve the quality of software products, this is a bottleneck problem we must solve. We think that the information engineering combining with the philosophy thought would make engineer’s ideas suddenly enlightened. We find a method and model to solve software engineering problems from the philosophical Angle, and put forward the importance of information philosophy in the study of information engineering by standing at this altitude of the information engineering. As a new field, information philosophy provides a unified, convergence theory frame, it can satisfy the requirement of further specialized. Information philosophy will become most exciting and productive philosophy research field in our era's.
By Using the Dynamic Performance of ALOHA Algorithm RFID
Authors: Yan Lian Long , Chen Zhi Hua
Published: December 2011

In this paper, RFID anti-collision ALOHA algorithm this paper proposed an improved algorithm for dynamic ALOHA scheme, which can improve the performance of RFID anti-collision system.
An Improved Congestion Algorithm Based on HSTCP
Authors: Lan Peng
Published: December 2011

A congestion algorithm based on HSTCP has been studied in this paper. In order to find the way to solve the TCP Non-Friendly of HSTCP, an mechanism W-HSTCP has been use to improve the existing algorithm, and the new algorithm can been applied in High-Speed network.. The idea of WI-HSTCP is to readjust the transformation of the traditional TCP model, and the simulation of new algorithm has been performed. The simulation result indicated that the better scheduling performance has been achieved by using the new algorithm.
Research on the 3D Error Analysis and Deformation Prediction for Part
Authors: Song Li Mei , Gong Shao Hua , Dong Xiao Xiao , Yang Chao Kui , Liu Zhi Hui
Published: December 2011

"Zero waste" is the eternal pursuit of goals of global manufacturing. But the 2D error analysis has not yet comprehensive and accurate analysis and prediction of product quality information. Comprehensive 3D error analysis and judgments can be obtained through the high-precision 3D data acquisition on part and standard error of alignment for 3D data. According to the error information, the deformation of the part can be measured, traced and predicted, thus to reduce waste generation. 3D error analysis and deformation prediction system is proposed in this article, it has higher reliability and a certain role for the correct evaluation of processing conditions and comprehensive understanding of the process of evaluating the whole production process.
The Erosion Analysis of the Muddy Tidal Flat Profile in Cangzhou City of Hebei Province
Authors: Han Xiao Qing , Chu Yu Juan , Zhang Yun , Zhang Chun Hua , Gao Wei Ming
Published: December 2011

In order to analysis the variation and characteristic of the muddy tidal flat, this article provided the modified sediment transport equation (MSTE). It was proved to be true after verifying the measured data of 2000 and 2007 in the field, and it could be used to simulation calculation the muddy tidal flat. The results of study showed that the slope of the muddy tidal flat was increasing as 0.0020‰ / a from 1987 to 2010. It was eroded slowly, which was lower as 0.021‰ / a of the slope above the department of 0 m contour line. In the meantime, the slope was eroded increased as 0.022‰ / a of the slope below the department of 0 m contour line. It still below the equilibrium state of tidal flat in study area, and the slope would be further eroded steeply. The study results were very important on the protection of muddy tidal flat, and would provide practical reference on management and development in the near future.
Algorithm Research Based on the Wavelet Transform Image Edge Detection
Authors: Xu Guo Sheng
Published: December 2011

Is presented in this paper a new image fusion method is proposed. This approach firstly determines the image edge positions based on Canny criteria and in combination with wavelet transform algorithm. Then use the wavelet transform algorithm to Multi-Resolution analysis edge location in sub-pixel level, thus detecting the sub-pixel edge. Experiments of One-Dimension image show that this method is correct and effective.
Measure Emergent Maintenance Shelter Operational Personnel’s Mental Workload with Field Test Method
Authors: Wu Lei Ming , Liu Ning , Xu Lai Chun , Zhao Lei , Shi Hong Xia , Hao Zhen Jie
Published: December 2011

Workload test aims to the experienced users, with the purpose to investigate that under the Real-Task situations, how many spare resources are in the brain. The emergent maintenance shelter is not up to the grade if that is just enough to complete the main task. The Field-Test methods presented in the paper include virtual Real-Scene Sub-Task test, NASA-TLX scale and subjective workload rating, which are all proved to have good reliability and validity by experiments in the field test.
Power Allocation for Multi-Relay Nodes Based on Signal-Noise-Ratio
Authors: Ma She Xiang , Zhang Yuan
Published: December 2011

In wireless communication system, the cooperative diversity is a new space diversity mode. Power allocation plan aiming at maximizing the signal-noise-ratio (SNR) for multi-relay cooperative nodes system is discussed. Diversity signals are combined by the maximum ratio at the destination node. The research results show that 1) when the received noise level at destination node is very low, it can be neglected; 2) when the power allocation coefficients are proportional to the square of the channel gains from the source node to the relay nodes, the SNR of system is maximized in the maximum ratio combination model; and 3) When the received noise at destination node cannot be neglected, the power allocation coefficients are correlative to the received noise at destination node, the amplifying coefficients and the fading coefficients. The SNR of system can be enhanced by using the plan compared with traditional equal power allocation plan.
Spatial Analysis on Livable City Public Transportation Satisfaction in Beijing
Authors: Chen Jing , Zhou Ai Hua
Published: December 2011

Based on a questionnaire survey responded by nearly 11000 people in Beijing, from a perspective of livable city, the general characteristics and the spatial autocorrelation of the public transportation satisfaction were analyzed. The overall evaluation of public transportation satisfaction in Beijing is 67.31, indicating that more great efforts should be paid to improve the public transportation satisfaction level in construction of the livable Beijing. The spatial structure of Livable City Public Transportation Satisfaction shows a “hot banding” distribution pattern, accompanying with 3 “cool spots”. To get a better understanding of the spatial pattern of the public transportation satisfaction, we used the Moran’s I and LISA to measure the spatial autocorrelation. The results illustrate that the public evaluation on the public transportation is spatial dependent and has tendency toward clustering. The cluster of areas with High-High association is located in the south of Beijing near Chang’an Avenue, highlighting and reshaping like a hollow circle, while the cluster of areas with Low-Low association is located in northwest Beijing and outside of the 4th ring road. Overall, the LCPTS in the north of Beijing lags obviously behind the overall level. The phenomenon is mainly due to the long-term accumulation of urban development.
RTDs Based Cellular Neural/Nonlinear Networks with Applications in Image Processing
Authors: Gao Shi Yong , Duan Shu Kai , Wang Li Dan
Published: December 2011

The resonant tunneling diodes (RTDs) are the quantum tunneling electronics in nano-scale size and have many interesting and valuable properties. Hence, they have been found numerous applications in high-speed digital and analog circuits to decrease the physical size and speed up the processing. This paper addresses the RTD based cellular neural/nonlinear networks (RTD-CNN). To verify its capacity, RTD-CNNs are employed to implement noisy removal, edge extraction and image inversion. A series of simulations demonstrate the effectiveness of the RTD-CNNs in promising applications in image processing.
Stabilization for Stochastic Markovian Jump Systems with Time Delay
Authors: Wang Yi Zhong
Published: December 2011

This paper is concerned with the robust stabilization problem for a class of stochastic markovian jump systems with Time-Varying delay. By applying a new Lyapunov-Krasovskii functional, a novel Delay-Dependent stabilization criterion for the stochastic Markovian jump systems is derived in terms of linear matrix inequalities(LMIs). When these LMIs are feasible, an explicit expression of the desired state feedback controller is given. Designed controller, based on the obtained criterion, ensures asymptotically stable in the mean square sense of the resulting Closed-Loop system for all admissible uncertainties and time delay.
The Development of Minimally Invasive Surgery Simulation Training System Based on Virtual Reality Technology
Authors: Liu Yan Fei , Jiang Xiao Yu , Shen Feng Ting
Published: December 2011

Minimally Invasive Surgery Simulation Training System based on VR technology is comprised of intelligent 3-Dimensional images VR software system and simulated surgical instrument with high perceptibility and high precision force feedback characteristics. Real time VR and simulated instrument with force feedback interact with the operator in real time, achieve high immersive virtual surgery scenario, and allows trainees to perform and improve the whole surgical procedures. By applying synchronized network video server and real-time communication server based on TRP/RTCP, the instructor can view all details of an operator's surgical procedure by a network terminal, and provide real time technical guidance. The system covers minimally invasive surgeries of digestive, urinary, gynecological, thoracic, pediatric , etc.
A Probability Theory Based Intelligent QoS Multicast Routing Algorithm
Authors: Wang Jun Wei , Zhao Yu Hui
Published: December 2011

In this paper, taking the characteristics of NGI (Next Generation Internet) into account, and base on its network model and mathematical model, a probability theory based intelligent QoS multicast routing algorithm is presented. Under inaccurate information of QoS parameters, using fast searching ability of DE (Differential Evolution), the proposed algorithm tries to find a multicast routing tree with the maximum probability of meeting with QoS requirement under the given cost. Simulation results have shown that the proposed algorithm is both feasible and effective.
High Throughput VLSI Architecture of MQ-Coder for JPEG2000
Authors: Shi Jiang Yi , Pang Jie , Di Zhi Xiong , Liu Yao Hui , Li Yun Song
Published: December 2011

In this paper, a design of high throughput VLSI architecture of MQ-Coder is proposed. Usually, because the regular operation of the MQ-Coder is sequential, the coding speed will be bottlenecked at the interface between the output of the Bit-Plane coding and the input of the MQ-Coder. Therefore, the proposed MQ-Coder architecture can process two symbols for each clock cycle. The main characteristics are the prediction of index, the simplified condition of renormalization, and the partly parallel architecture in renormalization. From synthesis results of the DC tools, using the TSMC 0.18 μm technology library, the frequency can reach 285.4MHz, which is comparable to that of other architectures and suitable for chip implementation.
Reclamation Processes from 1930-2006 in Western Jilin Province in China and Consequent Hydrological Effects
Authors: Wang Zhi Qiang , Wang Fang , Zhang Dong Shui
Published: December 2011

Western Jilin, being Agro-Grazing ecotones typical of ecologically vulnerable zones, tend to degrade land while disturbed. The reclamation within this area has brought about widespread and rapid environmental deterioration. The reclamation processes were reconstructed through the interpretation of Landsat TM images in 2006, 1996, 1986 and aerial Images in 1954 and 1930; the environmental impacts were analyzed by use of modified conversion matrix method and other spatial analysis methods. The results indicated that the reclamation had lead to the increasing deficiency of water resources.
GIS-Based Visual Simulation on Two-Dimensional Diffusion of River Pollution
Authors: Zhang Ling Xian , Mou Nai Xia , Yuan Zhong Bo , Yu Zi Jiang , Liu Wen Bao
Published: December 2011

The visual simulation on diffusion of water pollution is a key technology to reveal the diffusing transport of pollutants in the water. Based on Two-Dimensional diffusing model of water quality, this paper mainly does research on the methods and procedures to visualization of the diffusion of pollution combining means of visual simulation on point pollution with the GIS technology. And the diffusion of point source pollution in a certain river is taken as an example in the paper so as to verify the effectiveness of the given method.
Enterprise Management Innovation of Manufacturing Industry in the E-Business Environment
Authors: Rao Pin Yang
Published: December 2011

With the development of E-Business, supply chain management of manufacturing enterprises becomes more efficient, making business transactions more simplified, and meanwhile, organizational structure is transformed into open flat network structure from a pyramid hierarchical structure. Therefore, it is essential that manufacturing enterprises view as a whole function processes various businesses inside the enterprises and between the nodes at the supply chain, comprehensively improve the level of human capital through the form of virtual enterprises and establish management teams with the innovation consciousness.
Study on Three-Dimensional Packing Problem
Authors: Zhou De Xiang , Zhang Yi Fei , Chen Sheng Da
Published: December 2011

In this paper, the solution of three-dimensional packing problem by using HR algorithm and the process is proposed based on the principle of a detailed analysis of three-dimensional packing problem. In the simulation, we analyze and compare the effect of HR, GA+HR, Bischoff and ALIM algorithm, the results shows that HR runs fast, but the space utilization is low.
Research on Network Control System Using Improved EDF Dynamic Scheduling Algorithm
Authors: Chen Zai Ping , Xu Hong Qiao
Published: December 2011

In this paper classic static and dynamic scheduling strategy is analyzed first, and then communication network of schedule ability judgment basis is given. An improved dynamic EDF scheduling algorithm is proposed in order to improve the scheduling task of real-time. The scheduling strategy is to change task priority according to the transmission error over deadline task when applying dynamic EDF scheduling strategy. True Time tool is used to build CAN network control system simulation platform. Dynamic EDF scheduling algorithm and improved scheduling algorithm are simulated respectively. The effectiveness of improved scheduling algorithm is verified by the simulation Keywords-Network control system; Scheduling Algorithm; True Time toolbox result.
A Security Situation Sense Model Based on Artificial Immune System in the Internet of Things
Authors: Chen Run , Liu Cai Ming , Xiao Lu Xin
Published: December 2011

Grasping security situation of the Internet of Things (IoT) is useful to work out a scientific and reasonable strategy to defend the IoT security. In the interest of resolving the problems of the security situation sense technology for IoT, a security situation sense model based on artificial immune system for IoT is proposed in this paper. Security threat sense sub-model, formulation mechanism for security threat intensity and security situation assessment sub-model are established. The security threats in the IoT environment are surveyed effectively. Quantitative and accurate assessment for the Real-Time security situation is realized. Theoretical analysis shows that the proposed model is significative of theory and practice.
Physical Fractional Step Method for Solution of 2D Discontinuous Problems
Authors: Su B.L. , Wei W.L.
Published: December 2011

A numerical model for simulating of 2D flood waves was presented using the physical fractional-step method. Numerical simulations for 2D flood waves were implemented. The comparisons with other numerical solutions show that the proposed method can be capable of dealing with 2D dam-break flood waves.
A Fully Integrated S-Band Power Amplifier in 0.35um-SiGe BiCMOS Technology
Authors: Li Kang , Huang Guo Dong , Yang Xiao Feng , Feng Qian , Zhu Chao Xian , Liu Chi
Published: December 2011

A fully integrated S-band high efficiency power amplifier using the TSMC 0.35 um SiGe BiCMOS technology is presented. The two-stage power amplifier has been optimized for the whole S-band covering 2 GHz to 4 GHz frequency band for higher 1-dB compression point and efficiency. The input and output matching networks are designed on chip. From the simulate result, the two-stage power amplifier achieves high PAE of 28% and saturation output power of 23.3 dBm at 3 GHz, with the small signal gain of 18.7 dB. Besides, this PA realizes the PAE within the band of 2.4GHz to 4GHz exceed 25%, and the highest PAE of 30.6% at 3.4 GHz.
Shopping Path Analysis and Administration Based on WIFI Data
Authors: Li Ji Yun , Pang Hao
Published: December 2011

The WIFI technology plays an import part in business intelligence areas. Considering its low cost and convenience to use, we propose a WIFI deployment model for collecting the customers' shopping path data and purchased items data. First we define preference value (PV) and conclude its relationship with sales value (SV). Then we present an algorithm to obtain the preference path and the best sales path. Based on the differences between the two paths we come up with some suggestions to improve the in-store management.
The Application Study of Non-Binary LDPC Code
Authors: Wu Yu Ping , Zhao Dan Feng , Tong Ning Ning
Published: December 2011

Most practical communication systems need higher bandwidth efficiency; this article increased the bandwidth efficiency through code rate and modulation mode, by combining Non-binary LDPC code with MSK modulation and making practical use of them in communication systems. The simulation result showed that the combination of Non-binary LDPC code and MSK modulation possessed not only a stronger error correcting capability but also a higher bandwidth efficiency, which will probably be more applicable in practical communication systems.
Automatic Modulation Identification of MPSK Signals Using Differential Signal and its Higher Order Cumulants
Authors: Cai Zhan Hui , Yao Yuan Cheng
Published: December 2011

Automatic modulation classification plays a significant role in intelligent communication. A new method based on feature extraction is proposed for the recognition of M-ary Phase Shift Keying (MPSK) signals. As features, fourth and eighth order cumulants of the input samples and phase differential sequences were applied. It is shown that the cumulant-based features have robust anti-noise ability. Simulation results demonstrate that the correct classification probability (Pcc) with the proposed algorithm is higher than the existing approaches at low signal-to-noise ratio (SNR).
Condition for the Coverage and Connectivity of Wireless Sensor Network
Authors: Xiang Man Tian , Li Li Hong , Sun Li Hua
Published: December 2011

The topology attributes of both connectivity and coverage in a wireless sensor network depend on the spatial distribution and transmission range of the nodes. This paper proposes an analytical expression of the required critical transmission range of a node, for a given node density, to create an almost surely connected network. Equivalently, if the maximum range of the nodes is given, it can estimate effectively the number of nodes needed to cover a certain connected network. With experimental tests, the method is proved to achieve guaranteed degrees of coverage and connectivity, valuable for researchers in this area.
An Improved Fuzzy Adaptive Genetic Algorithm for Function Optimization
Authors: Yao Lan , Jiang Yu Lian , Xiao Jian
Published: December 2011

The critical operators for genetic algorithms to avoid premature and improve globe convergence is the adaptive selection of crossover probability and mutation probability. This paper proposed an improved fuzzy adaptive genetic algorithm in which the variance of population and individual fitness value are used to measure the overall population diversity and individual difference, meanwhile, both of them are applied to design fuzzy reference system for adaptively estimation of crossover probability and mutation probability. Simulation results of function optimization show that the new algorithm can converge faster and is more effective at avoiding premature convergence in comparison with standard genetic algorithm.
Web Object Mining Using Entropy Increasing Rate
Authors: Rui Liu , Ni Jiang Feng , Hu Hong Ping
Published: December 2011

In this paper, we proposed a new method of web objects extraction based on entropy theory, which takes both tag structure and content pattern into consideration for object detection. Firstly, it calculates content entropy of each node in HTML tag tree. Then, it uses entropy increasing rate to capture characteristics of object region and identify the minimal sub-tree that contains objects. Finally, a set of heuristics is employed for more accurate extraction. Experimental evaluation shows it can enhance the overall effectiveness of object mining.
A GIS Based Decision Support System for the Cultivation and Management of Eucalypt
Authors: Yu Xin Wen , Yang Yan Chen , Zhang Xu , Li Xuan , Li Ying Wu
Published: December 2011

A GIS based decision support system for eucalypt cultivation and management was developed. The system can help farmers make decision in planting suitability, eucalypt variety selection, planting scheme making etc. The system can also make an economic evaluation for the selected variety so that users can make decision to plant or not. The system supports two groups of users which are eucalypt farmers who cultivate eucalypt in a small scale and forest farms who cultivate eucalypt in a relatively large scale.
Fuzzy Comprehensive Evaluation Method for Financial Risks of Electric Power Enterprises Analysis
Authors: Tian Jin Yu , Wu Ling Ling
Published: December 2011

In order to solve the financial risks of electric power enterprises analysis problem, a fuzzy comprehensive evaluation model is used in this paper. By constructing evaluation index system and calculating index weights, the model can reasonably evaluate the financial risks of electric power enterprises. For illustration, an electric power enterprise example is utilized to show the feasibility of the model in solving the problem Results show that financial risk of the electric power enterprise is general. The paper provides a new way for financial risks of electric power enterprises analysis, and makes its research further perfected. Thus, electric power enterprises can control and prevent financial risks better.
Application of Community Energy Planning in Shanghai 2010 Expo Park
Authors: Liang Hao , Long Wei Ding
Published: December 2011

This paper gives the detail introduction of community energy planning method based on integrated resouces planning and applied it in Shanghai Expo Park, finally got the optimized energy option based on a comprehensive system of river water source heat pump. The main works included thermal load estimation, optimum pipework radius of district cooling system, the impacts of large-scale river water source heat pump (RWSHP) on the River water environment and the comparison of the energy performance of RWSHP with other district energy systems. Energy saving and carbon emission mitigation benefits of the program were also calculated.
Robust STAP Algorithm under the Steering Vector Uncertainty Set
Authors: Xia Dong
Published: December 2011

For solving the problem of optimum space-time adaptive processing (STAP) under the steering vector mismatch, a robust STAP algorithm is proposed based on the concept of robust Capon beamforming. The model of the steering vector error is established, describing the uncertainty of the desired steering vector. And a new optimization criterion is formed, by which the robust weight vector is acquired. Eventually experimental results and analysis are given with simulation signals. It is verified that the presented method is insensitive to the steering vector error and has a bigger improvement factor.
A Real-Time System for Pedestrian Detection Based on GMM and HOG
Authors: Li Feng , Zou Yi Feng , Zhou He Qin , Pei Guan Jun
Published: December 2011

The detection of pedestrian which has been widely used in digital surveillance systems is a popular topic in computer vision. This paper mainly discusses a system of pedestrian detection in video sequences captured from a stationary camera hanging in a public scene. We describe an efficient system combining background subtraction based on Gaussian Mixture Model (GMM) and object classification based on Histograms of Oriented Gradients (HOG). We first process moving objects segmentation using GMM. Then a HOG detector is used to classify the moving objects into person and none-person. Experimental results on video sequences have demonstrated that the real-time tracking system can process 15 to 30 frames per second robustly with a high accuracy.
A Map-Matching Method Using Intersection-Based Parallelogram Criterion
Authors: Wang Min , Bao Xun , Zhu Lei , Bao Yuan Lu
Published: December 2011

Accuracy of independent GPS navigation systems is tied to the map-matching algorithm, which overcomes GPS error and traffic map error to map vehicle GPS tracks onto corresponding roads. The paper proposed an improved map-matching algorithm in which an intersection-based dynamic parallelogram criterion is used to improve the accuracy of navigation systems greatly.
The Wireless Application of Space-Time Spread-Spectrum Technology in the Internet of Things
Authors: Liao Han Cheng
Published: December 2011

Massive data have to be quickly communicated in the internet of things with few error. Two good anti-fading technologies, spread spectrum and space-time coding technology are integrated to get better performance of combating fading in the wireless channel. Such kind of code division multiple access system is studied. A kind of well-chosen spread spectrum sequence is LAS code. The forward link system model, including both the transmitter and the receiver, is put forward. The decoding method, as well as some simulational performance results is given. With more than one antenna installed, it is able to achieve both the temporal diversity and the spatial diversity, which is conducive to enhance the system performance.
A New Collaboration Distribution Network Base on Third Party Logistics Alliance
Authors: Ding Bi Rong , Qu Xin Huai , Song Wen Feng
Published: December 2011

This paper researching on vehicle collaboration distribution of TPL alliance, discussing the solution to the arrangement of vehicle routing problem which is base on “multi-deport” vehicle distribution of the triangle network. As for the key situation of vehicle distribution, clusters the supply and demand nodes into sliced area in order to constrain triangle distribution model and realize the triangle closed-loop route of vehicle distribution in both pickup and delivering. By comparing relative advantages of the traditional distribution model and the triangle distribution model on many code aspects; then stimulate the problem with improved ant-algorithm; finally analyzes the results of stimulation. The results imply that the triangle network of vehicle distribution can reduce unload ratio and the cost of transportation, can improve full-load ratio and can achieve the optimal allocation of transport resources.
Punching Mould Quotation System Based on the Variable Step-Size BP Algorithm
Authors: Wang Hai Xia , Ding Shu Hui , Liu Ai Hua
Published: December 2011

This paper builds the Artificial Neural Network model on the amelioration of the traditional BP arithmetic, which is applied to the study of magnitype punching mould quotation system. And the quotation scheme based on the ANN is proposed. By adjusting the error, the article resolves the multi-factor, non-linearity problem in the quotation system.
Cooperative Access Architecture for High Speed Railway
Authors: Dong Fang , Liu Jun Biao , Hu Xiao Hui
Published: December 2011

With the great demand for broadband communication in high speed railway, new access technologies should be adapted to high mobility which brings Doppler frequency shift and fast handoff. The definition of cooperative range is presented and its influence on network connectivity is studied. The result shows that cooperation can greatly extend a wireless user’s communication range. A novel scheme of cooperative access architecture is proposed to support high-speed users with broadband communication.
Control Method for Myoelectric Prosthetic Hand’s Grip Force Based on Neural Network and Fuzzy Logic Controller
Authors: Zhang Hua Tao , Song Ai Guo , Guo Yan , Bao Jia Tong , Qian Kui
Published: December 2011

This paper presents a control method for prosthetic hand's grip force. Firstly, the correlated characters of the SEMG signal are calculated and input into the neural network in order to extract the estimation of muscle strength. Secondly, the estimation of muscle strength and the real-time prosthetic hand’s grip force are input into the designed fuzzy logic controller in order to adjust the motor speed, and indirectly control the grip force. This method could greatly reduce the individual difference of SEMG signal, make it can be used by Non-specific patient, and the experiment demonstrates that the control of prosthetic hand’s grip force is effective.
Engine Torque Estimation Based on BP Neural Network
Authors: Huang Kai Sheng , Wang Dong Liang , Lin Zhi Hua , Zeng Xiang Rui
Published: December 2011

Engine torque estimation function is the base of engine torque control. This paper establishes the model for engine torque estimation respectively under steady condition and unsteady condition based on BP Neural network, and develops a new engine torque real-time estimation method. The experiment results under steady condition and unsteady condition show that the engine torque estimation model can estimate the engine output torque and the precision is remarkable.
A New Upper Bound on the Error Probability of Binary Linear Codes
Authors: Guo Jun , Dai Li Yun , Yang Hong Wen
Published: December 2011

Performance evaluation of maximum-likelihood (ML) decoded binary linear codes is usually carried out using bounding techniques. In this paper, a new upper bound is presented to improve existing union bounds. The proposed upper bounding is based on probabilities of correct events, while the traditional union bound (UB) is on pair-wise error probabilities. Moreover, the improved upper bounding uses the intersection instead of the union of basic events. The theoretical and simulation results show that the proposed bound is tight than UB.
Reconfiguration of Electric Distribution Networks Based on SR-ACA
Authors: Fan Ai Long , Guan Da Lu , Hao Ping
Published: December 2011

Distribution network reconfiguration is a non-linear combinatorial optimization problem. It is defined as altering the topological structures of the power system by changing the open/closed states of the sectionalizing and tie switches.The aim is to reduce the power loss, and eliminate the overload of the lines, and improve the power quality, and restore the power supply to non-fault area in the distribution network and so on. Combined with distribution networks, The paper proposed an improved ant colony algorithm under the normal operating conditions to solve the distribution network reconfiguration problem. To demonstrate the validity and effectiveness of the proposed method, an example system is studied.The results on IEEE 71-bus distribution networks are also given,which reveal that the proposed method is feasible and effective.
A Study for Communication Network Construction of Hydro Information
Authors: Zhang Ting Ting , Li Mao Tang , Wang Tie Liang , Liu Xiao Yan
Published: December 2011

This paper introduces some primitive methods about hydro information transmission firstly, and then focuses on airborne remote sensing real-time transmission system and point-to-point duplex transmission in real time. The modes of hydro information transmission, including telephone network, satellite, short wave, ultra short wave and computer network communication etc, have realized the information transmission of “the integration of Satellite-Airborne-Ground”. The information transmission of airborne remote sensing real-time transmission system adopts the transmission of “Satellite-Airplane-Ground”. Point-to-point duplex transmission system in real time consists of two nodes which have the capacity of “point-to-point” duplex data transmission.
The Shared System of Water Resource Information Base on Satellite Communication
Authors: Zhang Ting Ting , Li Mao Tang , Wang Tie Liang , Liu Xiao Yan
Published: December 2011

This paper analyzes the problems of water resources information communication at present, and then proposes a shared system of water resources information based on satellite communication. This system does not rely on the existing network infrastructure, and it owns equipments to build its own communication network, and then its information is communicated though satellite. So the characteristics of this system is reliable performance, high efficiency, low cost and scalability. This system has been successfully applied into several units.
Railway Bridge CAD Software Program
Authors: Li Jia Wen , Pan Zhi Xuan , Zhang Hai Yan , Li Bang De
Published: December 2011

After analyzing the features of all kinds of CAD software program, this paper reaches such a conclusion: most of traditional bridge-design programs focus on calculating structural load, so nowadays the calculating feature of this software programs is greatly improved. At the same time, a common problem is still with traditional bridge-design software programs, and this problem is all this programs don’t have any model that offer information referred to the bridge being designed, and this problem result in isolation of data in different stage of designing. To solve this problem, this paper proposes that railway bridge CAD software program take ACCESS as core database and AUTOCAD as supporting graphical system, and we should develop new software program on this basis. This paper also propose that bridge-design software program we develop in future should take design knowledge and bridge information referred to 3D geometric data in consideration, so that the design software program can reuse the characteristic component databases and all kinds of information in different design stage.
Analysis on Strength Problem of Casing Caused by Cementing Lacuna
Authors: Liu Yan Qiang , Yu Gui Jie
Published: December 2011

By the thin shell theory, for the casing damage caused by formation creep at local ring cementing lacuna, differential equations for force and deformation of casing was established and the unknown boundary issues with rigid constraints around the cement sheath was discussed. The border issue and the displacement and stress solutions were determined by displacement method and semi-converse solution. The distribution of the stress was analyzed. The results show that risk locations of casing damage are mostly at the centre and the edge of the lacuna. The conditions of casing strength are established by the above.