bluuebunny/crossref_metadata_2025 huggingface dataset:
Public Transit Vehicle Arrival Information System Based on Mobile Internet
Authors: Pan Jian , Dai Xiu Ting , Xu Xiao Qi , Lou Yi Chao
Published: August 2013

At present, arrival time information service and security supervision of public transit vehicles have become a hot issue of society and government departments. In this paper, a system for notifying passengers waiting for buses of the status of the vehicles, including the arrival times of vehicles at stops, is proposed. The system includes GPS devices located in the vehicles for determining the location of the vehicles along their routes. A server is coupled to the GPS devices for receiving the locations of vehicles, computing the arrival times of vehicles based on history data model, and publishing the information on website using RESTful API. Experiments on real datasets show that the system is a powerful tool for arrival time prediction of public transit vehicles.
Power Fiber to the Home will Open a New Era of Information
Authors: Lin Yi Wei , Duan Can Yi , Zhang Xiao Nan
Published: August 2013

The advent of information epoch and the establishment of the smart home and city have cultivated and accelerated the formation of the power fiber to the home (PFTTH). The analysis on the development course of fiber to the home (FTTH) in both China and abroad, as well as the problems of Chinese broadband and its solutions all illustrate that PFTTH is the best solution of energy conservation, environmental protection, resources optimization and breaking the deadlock of the integration of three networks. The success and the rapid popularization of the PFTTH pilots in many places of China push the integration of the four networks forward. Meanwhile, the vigorous development of the smart grid makes the PFTTH fall into place. The huge fiber network formed by the grid has the function of Infobahn. And through the open transportation of the pipeline route, telecom and the broadcasting, building an informative network with Chinese characteristics begins to show effects. Supported by the related policies of the government, PFTTH is bound to open a new era of information.
The Application and Practice of ATLAS on ATE
Authors: Liu Yu , Wang Feng Qin , Li Qi
Published: August 2013

ATLAS is a kind of standard testing language.The test program developed by ATLAS has little to do with the actual hardware and is based on signal.So it can be widly used in all kinds of auto test equipment.A detailed process to develop ATE by ATLAS is described in this paper and good results have been obtained in the application. ATLAS is an ideal testing language to develop test program of ATE.
Research on E-Commerce Software Framework of MVC Mode Based on .NET
Authors: Lin Ying Jian , Lin Shuang
Published: August 2013

E-commerce through the internet to provide online trading and management of the whole process of service, software is the foundation of E-commerce application. In connection with problem of E-commerce software development, this article study research .NET technology, the MVC mode of E-commerce software framework to support E-commerce software development, implement MVC pattern framework of E-commerce software, assist the development of E-commerce software. Firstly, research the function of the E-commerce software; then research work pattern which construct by the three core components of the model, view and controller MVC mode; Finally, research ASP.NET MVC framework, include the framework composition, processes, framework advantages and so on. use the development framework which this article research, is not only achieve a complete separation of the view, controller and model, and implement the separation of business logic and persistence layer, improve the software reusability and development efficiency.
Research and Implementation of Electric Control System
Authors: Li Yuan , Zhang Wen Qing , Yang Hui Qin , Liu Hui
Published: August 2013

In this paper we apply multiprocessor system with controller and multi-channel technology to design a loom control system of multilayer and multi-channel. The electronic control system uses the idea of module design and regards the multiprocessor as the part, all control software and hardware design are all independent. Electric control system with high performance and precision consists of each control module, and has better scalability. Practice has proved that the electronic control of loom improves the efficiency, helps the manager to make decisions, contributes to the network management of loom and adapts to modern production.
Auto Detection of Top Part for Research Paper with a Mixed Method
Authors: Zhang Bo , Yu Jiao Zhuo
Published: August 2013

The detection of elements in top part of research paper is very important, because these elements are often used as the search items by user. This paper provides a mixed method for auto detection of top part from research paper. The papers feature of keyword, layout and content similarity are mixed to accurately find the area of top part and recognize the elements in top part. Experiments show the advantage of our method over existing methods, and future work is also described in the paper.
Energy Efficient Protocol Based on Orient Constraint Factor in UWASNs
Authors: Zhang Lei , Zhang Yan Bo
Published: August 2013

UWASNs are deployed in environments of sea and shallow water, which are composed of many nodes that communicate through acoustic wave. The preliminary problem in UWASNs different with on land WSNs is the severe demand of delay time constrain. It becomes a crucial problem that how to reduce unnecessary path that waste time. In this proposed paper, we present an energy efficient protocol with low delay time. Orient constraint factor is a constitute element of this proposed protocol, which instructs node how to select the next hop from neighbor nodes. The orient constrain factor is composed of the distances of source node, neighbor nodes and destination node (commonly pointed to sink node). Simulations show that this protocol can efficiently reduce the delay time and hold a high level of energy efficient.
Design and Simulation of Temperature Control System in Intermittent Reaction Kettles Based on Intelligent Fuzzy Control
Authors: Li Xin Wei
Published: August 2013

A temperature rising control system and temperature maintaining control system were designed in according to time-variable and hysteretic nature of temperature change and limitation when traditional PID control deals with nonlinear systems. A new type of intelligent fuzzy controller combination of traditional PID control and fuzzy control was designed and applied in temperature maintaining control system. The simulation results show that the holding phase at elevated temperatures and temperature, the temperature curve has a high steady-state accuracy and dynamic performance in the period of temperature rising and maintaining, and the system and controller cause a better result.
Research on Control Method of DC Voltage Based on Power Feedforward
Authors: Du Xin , Zhu Ling
Published: August 2013

DC-bus voltage is affected by fluctuations of load and grid impact, threating the safe operation of the system. According to the instantaneous active power balance, a power feedforward control strategy was proposed to reduce the DC voltage fluctuations. In this strategy, the load active power was directly fed-forward to the grid-side given instantaneous active power node through a constructed load state feedforward channel, which avoided the slower process of indirect power adjustment through outer voltage loop. So, the system response speed was greatly accelerated, the DC-bus voltage fluctuation was inhibited effectively, and the dynamic performance of the system had improved. Test results demonstrate the effectiveness of the proposed strategy.
Passivity-Based Control Strategies of Doubly Fed Induction Wind Power Generator without Speed Sensors
Authors: Wu Wen Jun , Xue Hua
Published: August 2013

Due to its great potential value in theory and application, nonlinear control strategies of doubly fed induction generator (DFIG), especially passivity-based control (PBC) methods, have been a focus in the literature. A PBC strategy for DFIG with time-varying load torque to track flux and speed trajectories is proposed in this paper. The key point of this method is the identification of terms, known as workless forces, which appear in the dynamic equations of DFIG but have no effect on the energy balance equation of the closed loop. The speed of DFIG is estimated via an ANN estimator avoiding the use of mechanical sensors. PBC combined with ANN speed estimator not only reserves the advantages of PBC such as nonexistence of singularity, but also rejects the flux and speed tracking error caused by stator and rotor resistance variation. This algorithm simplifies the control structure and enhances the robustness of the control system. The feasibility and effectiveness is testified by the experimental results based on dSPACE.
Research on the Demand of Dynamic Housing and the Application of Distributed Generation Management in Micro-Smart Grid
Authors: Chen Guo Qing
Published: August 2013

Smart grid is a very important trend of power system. With the sharing of smart grid and micro-grid from the traditional power grid, the energy cost and the environmental degradation of power grid have reduced. This paper introduces a dynamic demand response and distributed generation management approach according to micro-smart grid of a residential area. This method has dynamic update mechanism, demand response automation operation and human intervention. Distributed management coordinates with demand response. For example, random load and wind power generation are used to reduce the cost of energy consumption of a residential area. This paper achieves the study of the demand of dynamic housing and the application of distributed generation management in micro-smart grid by the form of distributed generation management modeling. It introduces the specific distribution form of the distributed micro-smart grid taking the building of new rural micro smart grid for example. It also introduces the circuit schematic diagram of micro smart grid.
Investigated Solution Concentration Sensors Based on the Etched Phase Shifted Fiber Bragg Grating
Authors: Su Fu Gen , Sang Xin Zhu
Published: August 2013

To remove or reduce the cladding layer thickness of fiber Bragg grating, the refractive index changes in the surrounding environment will affect the fiber Bragg grating effective refractive index of the core, resulting in changes in the Bragg wavelength. Solution concentration changes will cause changes in refractive index of the solution. A new kind of solution concentration sensor is designed with the etched phase shifted fiber Bragg grating, and concentration sensing detection with four kinds of solutions is experimentally demonstrated. With resolution concentration increasing, the phase shifted label wavelength shifts to the red, and the sensor is more sensitive in the case of higher concentration.
Based on FPGA Design and Simulation of Function Signal Generator
Authors: Wang Chun Ying , Zhang Jun
Published: August 2013

Based on direct digital frequency synthesizer ( DDS ) of the working principle, designfunction signal generator based on FPGA chip as the core, the application of Verilog language andQuartus II provided by software schematic design function, completed a system circuit design, using Modelsim on the circuit in the simulation, the simulation results are analyzed, the validationof the design method for the reliability and feasibility.
Design and Implementation of Intelligent Digital Photo Frame Based on FPGA
Authors: Han Dan Dan , Zhang Tian Chi , Zhang Jing
Published: August 2013

SOPC technology of Nios II is Used for the design of intelligent digital photo frame in this paper. Developers can integrate design according to actual needs, fundamentally changing the lack of traditional design. Digital photo frame as a whole project is divided into two parts of the hardware module and software system. Functional correctness is verified by Quartus II, further downloaded to the FPGA for debugging, the observation results showed that digital photo frame has a high degree of freedom in the system optimization, which can be extended the life of the product on the market, greatly improving the performance of multi-function digital photo frame.
Electrical Load Management Tool Design
Authors: Qin Jian Rong , Wang Jia Cun
Published: August 2013

The purpose of electrical load management in a manufacturing plant is to change the load profile in order to gain from reduced total system peak load and increased power factor. One of the widely taken approaches is to optimize the schedule of electrical equipment operation hours to take advantage of incentives and favorable pricing offered by utilities. In this paper, we present our work in designing and developing a web based tool for manufacturing plants to find out an optimal operation schedule of equipment so as to reduce energy cost. The tool allows users to configure their load by specifying electrical devices and their various parameters. Then the online system will assess power consumption over a certain time period, as well as peak power demand and power factor of the defined load.
Study of FBG Sensor in the Oil Well Logging System
Authors: Zhang Peng
Published: August 2013

This paper presents a new method of a FBG sensor for temperature measurement in the well logging system. FBG Sensors have a wide range of precise temperature measurement highlighting characteristics, at the same time, they also can realize measurement and stress more distributed measurement, which provides the key technology for real-time wellsite data acquisition, analysis, and the decision-making, as well as improves the existing oil field recovery.
Comparison of Methods of Maximum Power Point Tracking of Photovoltaic Cells
Authors: Li Lan , He Yong Hui , Wang Bo
Published: August 2013

According to engineering mathematics model of solar photovoltaic cells, a simulation model of photovoltaic cells was established in Matlab. In view of problem that it is difficult to get higher tracking accuracy and response speed by use of perturbation and observation method which applied fixed perturbation step, the paper proposed an improved perturbation and observation method based on variable step. Through simulating photovoltaic cells control system, simulation curves of two kinds of methods of maximum power point tracking were compared. The simulation results show that the photovoltaic cells control system can track maximum power point more quickly and has better stability at the maximum power point by use of the improved perturbation and observation method.
Design of Control System of Construction Elevator Based on PLC
Authors: Wei Cai Qiao , Gao Xin Quan
Published: August 2013

There are still plenty of shortcomings in existing construction elevator ,such as low automation ,high cost and no communication equipment between the driver and users. Making use of wireless module to realize the transmission of user information,PLC control system are adopted, the serial communication mode between the PLC and the wireless module was adopted. Construction elevator is automated through these technologies. Practice shows that the efficiency is high and usage cost is low and operation is reliable.
A SSD-Aware Dynamic Stripe Method for High Reliable RAID
Authors: Bu Kai , Yi Wei , Xu Hui , Xie Qi You , Liu Jian Bin
Published: August 2013

NAND Flash-based SSD has gained prevalence in enterprise and embedded system as storage device because its high I/O performance, low-power consumption, and Anti-vibration characteristics. RAID consisting of SSD can achieve higher performance. However, it brings new problems such as parity disks suffering from premature aging, data disk aging simultaneously. This paper based on the variation of SSDs reliability, design a new RAID-5 architecture with dynamic stripe length. It can effectively reduce the disk space overhead and improve the safety performance of the RAID.
Development of Decision Support System for Protecting Distance between Power Lines and Trees
Authors: Ge Guang Zu , Tang Bo , Zhu Jian Xiong , Huang Yin , Qu Zi Hang
Published: August 2013

Resolving the contradiction between trees and power transmission lines in time is an important work to ensure the safety of transmission line operation. While it is difficult to decide the trees trimmed time during the transmission line operation and maintenance, the development of the management information system for protecting distance between transmission lines and trees, which is used to auxiliary predict the date of pruning, is a way to solve the problem. Collected attribute data of transmission lines and trees, the corresponding database is established. Therefore, Visual Basic 6.0 is adopted to develop the software system. Based on the spatial coordinates of line towers, conductors, and tree crown, the three-dimensional mathematical model is established to calculate the spatial distance between the conductor and tree crown. According to the mathematical model, the trees growth rate of year, month and day, respectively, and the protecting distance standard between conductor and tree crown, the system could calculate the actual spatial distance between conductor and tree crown, and auxiliary predict the pruning date.
The Application Research on Signal Processing Technology in Non-Destructive Test Technology
Authors: Guan Di Jin
Published: August 2013

The high-precision instruments must be tested to ensure the accuracy and the normal use of the instrument in the application. Traditional detection techniques damage the instrument. So, researching for a technology which has no destruction on high precision instrument is important. This paper puts forward a new ultrasonic nondestructive test technology of precision instruments through empirical mode decomposition method of modern signal processing technology and ultrasonic nondestructive test technology. The first part describes the shortcomings of modern signal processing technology--Fourier and wavelet analysis and the advantage of empirical mode decomposition method. The second part establishes the mathematical model of ultrasonic nondestructive test technology. It also establishes empirical model to enhanced signal and noise ratio using the self-adaptivity of the empirical mode decomposition. It also extracts Intrinsic Mode Function (IMF) of ultrasonic nondestructive test technology using EMD and Hilbert transform signal processing method. Finally, it gets Nonlinear and non-steady-state frequency power spectrum which provides a reliable theoretical basis for the study of nondestructive test technology.
Analysis of Stacked Alamouti Coding in Wireless Communication
Authors: Li Yi Peng , Yang Hao
Published: August 2013

Stacked Alamouti coding in MIMO wireless communication systems was analyzed through equivalent channel.We derive an upper bound on the portion of the ergodic capacity that the stacked Alamouti scheme can achieve, which is dependent on the ratio of number of transmit antennas to that of receive antennas in the high signal-to-noise ratio regime. As a conclusion, it is shown that the stacked Alamouti scheme can approach the channel capacity as long as the number of transmit antennas is no less than two times that of receive antennas.
Data Acquisition and Transmission Method of the Quality Traceability for Poultry Processing
Authors: Niu Xiang Jie
Published: August 2013

Traceable system, which is an effective way to control the quality and safety of agricultural products receives increasingly attention globally. Using the food safety of poultry processing as the research object, the paper builds a safety production management and quality trace system in order to achieve the goal of quality trace. Making detail analysis of the RFID data acquisition and compression delivery method, the author using wavelet compression technology to complete efficient delivery issues of tag identification and ensure delivery efficiency. This paper achieves the function of efficient transmission and tag-data acquisition in quality traceability system for poultry processing.
Design of a Fourth-Order Sigma-Delta Modulator for Audio Application
Authors: Ren Ming Yuan , Li Tuo , Dong Chang Chun
Published: August 2013

Based on requirements on high performance and high resolution of modulators, a fourth-order Sigma-Delta modulator for audio application is developed in this paper. The modulator is designed under the commercial 0.5μm CMOS process and the circuits are given simulations by Spectre. The sampling frequency of sigma-delta modulator is 11.264 MHz, and OSR is 256 within the 22 kHz signal bandwidth. Measure performance shows that Sigma-Delta modulator enables its maximum SNR to achieve 103.5dB, and the accuracy of Sigma-Delta modulator is up to 16 bit.
The Design of Concentrator in Power Energy Information Acquisition System Based on the Internet and Zigbee
Authors: Zheng Xuan , Liu Meng , Lin Feng Yan
Published: August 2013

Employing S3C2410 as the core component, a kind of concentrator in power energy information acquisition system based on the Internet and the short-distance communication technology Zigbee has been designed in this paper. The structure and function of the system has been introduced too. The Internet and Zigbee communications are realized and parts of the circuits and flow charts are given. This system uses the short-distance communication technology Zigbee to realize the data transmission between concentrator and collector, and then uses the Internet to carry the data to the superintendent center, and realizes the remote brail and management function. Empirical results show that this system can primly realize the itinerant excerption of the ammeters, the analysis of the statistical electric dosage, and the remote control of switch on and off. This system has the low cost, high reliability and stability, it can advance the automation level of the electric power management, and has a good foreground.
Automatic Recognition of Hub Classification Based on Machine Vision
Authors: Wang Guang Wei , Zhang Ji Ping
Published: August 2013

Based on machine vision principle, automatic recognition system is advanced to distinguish hub classification with different types. Firstly, the dark room environment is set up to eliminate the environmental interference. Secondly, the height of automobile hub is obtained with the grating ruler, and the diameter of automobile hub is achieved through image contours analysis. Finally, hub classification is accomplished through the Hu moment analysis of hub holes. Experiments show that the system can meet the needs of recognition online for hub classification, which can improve productivity effectively, and is of great application value.
Application of Unified Communication Technology in Command Information System
Authors: Cao Lei , Lv Zong Hang , Chen Xi Liang , Tan He Shun
Published: August 2013

To solve the communication problems in Command Information System, we introduced the Unified Communication technology which is developing rapidly in recent years, and analysised the feasibility of using this technology. We put forward a Unified Communication platform application model and made a preliminary study of its hierarchy and implementation.
Error Correction Based on LDPC Codes in Wireless Optical Communication
Authors: Gao Xiao Rong , Wang Pei , Guo Jian Qiang , Li Jin Long , Yang Kai , Wang Ti Kui
Published: August 2013

Complex atmospheric environment seriously affect the quality of wireless of information transmission. In order to improve the wireless optical communication quality, and reduce the influence of attenuation, flicker, angle misalignment caused by atmospheric scattering, absorption, turbulence, beam expander, mismatch, atmospheric channel model is established while coding techniques for error control in wireless optical communication was researched into.The improvement result of error rate by error correction coding in different SNR situations was obtained. The results showed that the LDPC coding can significantly reduce the BER. For Gaussian channel, SNR can be reduced 8 dB when BER is 10-6; For wireless optical communication , LDPC codes can make the error rate reduced by 4-5 orders of magnitude.
An Analysis of High Precision Detection Technique for Wireless Positioning System
Authors: Xiao Yan Nan , Deng Zhong Liang , Sun Xiao Fei , Wang Xiao Guang
Published: August 2013

In order to solve the issue of high precision detection for mobile phone, an effective approach for triggering the GSM signal is proposed to make the phone transmit the frequency hopping signal which can be established without user interaction. An algorithm of time delay estimation for frequency hopping is proposed and verified by the simulation. The results show that bandwidth signal of frequency hopping can be used which leads to the estimation errors range of approximately [-4.3m, +4.3 and the multipath resolution is improved as well. The technique is therefore ideally suited for high precision of mobile station location.
An Advanced Method for Human Body Detection
Authors: Li Feng Xia , Zhao San Yuan , Li Zhong Jun , Zhang Wang Cheng
Published: August 2013

An advanced method is proposed that combines the advantage of Hough transform and exemplar method for human detection. This method firstly uses a universal codebook for all the patches in an image which reduces the total codebook size and the dimensionality of similarity features. Another contribution is in classifying and detection, in which section we use the sprite of Hough transform, but we train the model in a boost way. Finally the experiment results are given.
Fusion of Background Subtraction and Frame Difference in HSV Space for Multi-Object Detection
Authors: Wen Ya Ne , Li Hong Song , Zhou Hao , Tang Li Ping , She Jun Qi
Published: August 2013

in order to solve the adverse effects of strong light and shadow on the test results, a fusion frame difference and background subtraction method in the HSV space is used in this paper. By using frame difference method to solve the effect of strong light, but frame difference method can not detect object when the object do not move, the method of background subtraction can detect it, building Gaussian background model in the HSV space can eliminate shadows. Empirical results show that the method of fusion frame difference and background subtraction in the HSV space can get overcome the effect of strong light and shadows. Fusion background subtraction and frame difference method based on establishing a Gaussian mixture model in HSV space can overcome the disadvantages of the frame difference method, at the same time it can also solve the false detection of object which result from the background subtraction method.
Research on RACH Signal Detection Algorithm in TD-LTE System
Authors: Shi Wei Ping , Wu Zhuo Ran , Li Xiao Wen
Published: August 2013

In TD-LTE system, RACH (Random Access Channel) process is an important process for gaining time-frequency resource of uplink. Through the research on RACH signal detection, a low-complexity implementation approach is proposed in this paper. After research and analysis of RACH signal time domain detection algorithm and RACH signal circulate correlation algorithm based on Fast Fourier Transform (FFT), According to the Zadoff-Chu (ZC) sequence character, RACH signal circulate correlation on detection algorithm based on frequency domain ZC is proposed in this paper .Combined with different algorithm, the algorithm is proposed in this paper can rapid and effective realize RACH signal detection.
A Novel Fusion Method Using NSCT and PCNN
Authors: Li Hong , Wu Fen Xia , Tan Cong E , Li Gong Yu
Published: August 2013

An image fusion algorithm by combing Nonsubsampled Contourlet Transform and Pulse Coupled Neural Network is proposed in this paper. Two primitive matched images are decomposed in NSCT domain. The low frequency used the regional energy weighted fusion. The high frequency coefficients are input to the PCNN. Finally, the fused result is obtained through inverse NSCT. The novel algorithm will employ features and contain the most of the energy of image. The simulation results show that the results are much better than the experimental results, which the mutual information and QAB/F parameters are higher than the contrast method of fusion results.
Feature Dimension Reduction and Graph Based Ranking Based Image Classification
Authors: Yao Nan , Qian Feng , Sun Zuo Lei
Published: August 2013

Dimensionality reduction (DR) of image features plays an important role in image retrieval and classification tasks. Recently, two types of methods have been proposed to improve both the accuracy and efficiency for the dimensionality reduction problem. One uses Non-negative matrix factorization (NMF) to describe the image distribution on the space of base matrix. Another one for dimension reduction trains a subspace projection matrix to project original data space into some low-dimensional subspaces which have deep architecture, so that the low-dimensional codes would be learned. At the same time, the graph based similarity learning algorithm which tries to exploit contextual information for improving the effectiveness of image rankings is also proposed for image class and retrieval problem. In this paper, after above two methods mentioned are utilized to reduce the high-dimensional features of images respectively, we learn the graph based similarity for the image classification problem. This paper compares the proposed approach with other approaches on an image database.
Design and Implementation of Automatic Car Driving Control System Based on FPGA
Authors: Huang Qian , Yang Jun , Zhao Zheng Peng , Tao Fu Shou
Published: August 2013

This paper studies and designs of a car automatic driving control system, the system is a dual-core FFT processor based on the pipeline structure CORDIC algorithm design is based on the voice signal spectrum analysis, and through the to extract MFCC voice characteristics Template Library instruction data in comparison, thereby generating a control signal, and ultimately by the FPGA control the wireless communication module to achieve the basic operation of the voice control of the car commonly. Download test results show that the system can be done in real-time response to voice commands, the system has a simple hardware structure, real-time, high reliability, and can be widely used in the field of voice recognition control systems in DE2 experimental development platform .
Multiple Watermarks Algorithm for Medical Image Based on Arnold Scrambling and DFT
Authors: Sui Miao , Li Jing Bing , Duan Yu Cong
Published: August 2013

In the process of network transmission, when an exception occurs (such as forgery, tampering, information confusion), digital medical image, as a diagnostic basis, can not serve as the evidence of medical accident case. And the ROI of medical image is unable to tolerate significant changes. In order to deal these problems, we have proposed a multiple watermarks algorithm that uses Arnold scrambling to preprocess the original multiple watermarks, improving the security of watermarking, and combining the visual feature vector of image with the encryption technology and the concept of third-party. Moreover, the sophisticated process is needless to find the Region of Interest (ROI) of medical images. So compared with the existing medical watermarking techniques, it can embed much more data, with less complexity. The experimental results show that the scheme has strong robustness against common attacks and geometric attacks.
DWT-DFT and Logistic Map Based Watermarking Algorithm for Medical Image
Authors: Liu Yao Li , Li Jing Bing
Published: August 2013

When medical image transmitted and stored on the Internet, it is vulnerable to many kinds of attacks, thus, the security of the patients personal information is low. A robust watermarking algorithm has been proposed to increase the security of medical images. The scheme obtains the visual feature vectors of the medical image using DWT-DFT. At the same time, applying Logistic Map to encrypt the watermarking image, which can enhance its security. The experiment results show that the scheme has strong robustness against geometrical attacks.
The Application of Hydraulic Automatic Flap Gate in the Regulation Project of Duanmijian River
Authors: Kang Ying Bin , Rjap Abdurxt , Huang Kun
Published: August 2013

Informed by water pressure and gate weight balance principle, the hydraulic automatic flap dam makes use of hydraulic power together with the damping feedback system, which makes it possible to automatically open the discharge when water level at the upper stream is high and to close when the level is low. This helps to ensure that the water level at the upper stream always stays within the normal range and has been widely applied in city water regulation projects and hydropower renovation projects alike. The flap dam in the project reported here is constructed upon the existing levees of Duanmijian river. This paper discusses the design of the flap dam as well as the entire outline and its major features.
Modeling and Control of Complex Nonlinear Systems Based on TS Model
Authors: Zhao Yu Chi , Liu Jing
Published: August 2013

The current theory of nonlinear systems is still not perfect. The modeling and control of nonlinear system problem has always been the difficulty. In a variety of methods of its study, fuzzy system theory because of having the language descriptive way similar to the human mind, can obtain and deal with the qualitative information intelligently. The theory itself also has non-linear characteristics. Therefore the use of fuzzy systems theory to establish the fuzzy model of nonlinear system can well describe the nonlinear characteristics. T-S fuzzy systems, due to the combination of the good performance of the fuzzy system to deal with nonlinear problems with the simple linear expressions, are not only suitable for modeling the nonlinear system, but also use T-S fuzzy model and the linear control theory method to design the controller. So it has been widely used in nonlinear system control problems, and has also greatly developed the T-S fuzzy system theory, appearing a lot of methods of structural and parameter identification. However, this study of T-S fuzzy rules makes us have to face the difference of different ways to select the number of rules as well as online self-adaptability of the number of rules which off-line method lacks when using T-S fuzzy model to deal with nonlinear system modeling and control problem. In view of this, this paper researches on modeling and controlling of complex nonlinear systems based on TS model from different perspectives.
Research on Seismic Strengthening Buildings of Concrete Frame Structure
Authors: Xu Bing Jin
Published: August 2013

When seismic strengthening was analyzed, the traditional method always took a single construction member as the target, and it was hard to carry out with ineffective outcome of seismic reinforcement. A method of seismic strengthening buildings of concrete frame structure was proposed to solve the problem. The new method reinforced the buildings of concrete frame structure with CFRP (Carbon Fiber Reinforced Polymer), it took the system as the target to analyze and it was easy to carry out. With analysis and experiment, the new method showed improvement of seismic strengthening, and the Seismic average improvement of performance was about 25.85%. The simulation result shows nice performance in the engineering practice and it has effective application prospect in the future.
Characterization and Preparation of Cool Wool by Sodium Hypochlorite
Authors: Zhang Hai Yan , Hu Xue Min
Published: August 2013

Preparing of cool wool from coarse wool fiber is a feasible and effective method. The preparation principle, process and properties of cool wool fiber was studied during chlorination treatment with sodium hypochlorite. The optimum chlorination treatment process was as follows: concentration of sodium hypochlorite at 4g/L, concentration of sulphuric acid at 20g/L, time 15min, temperature 20°C to 25°C, ratio of water and wool fiber was 50:1. Compared with original wool fiber,the surface of cool wool only retained scales roots and the cuticle becomes thinner. Handle, softness, whiteness, luster and the anti-shrinkage properties were improved, the breaking strength is decreased about 5% to 8%.
Research and Application of Improved Support Vector Machine in Temperature Control of Heat Treatment Furnace
Authors: Li Jing , Wang Xin Jian , Liu Sen
Published: August 2013

According to the process characteristics of the medium thickness steel plate temperature control in the heat treatment furnace, a new steel temperature predictive model of heat treatment furnace based on particle swarm optimization algorithm and genetic algorithm to optimize the parameters of regression support vector machine (PSO-SVR and GA-SVR) is established. Based on the new model, the design steps are given. The very good forecast effect is obtained when on-site production process data are taken as the training samples to train the model, and then the data samples of model test are selected to simulate it. The comparison of the PSO-SVR and GA-SVR forecast results indicates that GA-SVR is able to obtain better regression result and stronger predictive ability.
Theoretical Investigation of Product Channels in the CH3O2 Plus CN Reaction
Authors: Xiang Tian Cheng , Si Hong Yan
Published: August 2013

Several reaction pathways on the potential energy surface (PES) for the radical-radical reaction of CH3O2 + CN have been investigated theoretically at the CCSD (T)//B3LYP/6-311++G (3df, 3pd) level. The calculations show that the CH3OOCN and CH3OONC are the most stable intermediates. The direct dissociation of CH3OOCN (im2) leading to CH3O + NCO is predominant on the energy surface, and the CH2O + HNCO are expected to be secondary products.
Fuel Optimal Trajectories for Low-Thrust Orbit Transfer
Authors: Zhou Yang , Yan Ye , Huang Xu , Zhu Zheng Long
Published: August 2013

Low-thrust spacecraft orbit transfer optimization problem is studied in this paper, and shooting method is applied to the transfer trajectory optimization for satellites on high eccentric orbit. First, this paper puts forward the gauss perturbation equation of non-singular equinoctial elements. A first order approximated analytical solution of the orbit elements under low-thrust and J2 perturbation is presented based on perturbation theory. Then, the optimization control model by shooting method is established. Finally, the first order approximated result is compared to the numerical result. A transfer problem is optimized using shooting method. The accuracy and validity of this method is verified.
Microstructure Evolution and Mechanical Properties of Mg-2.5Zn-0.5Y Alloy
Authors: Zhang Li , Liu Zheng , Mao Ping Li
Published: August 2013

The microstructure evolution and mechanical properties of as-extruded Mg-2.5 Zn-0.5Y Mg alloy were investigated. The grainy intermetallic phases (I-phase and w-phase) observed in the as-cast Mg-2.5Zn-0.5Y alloy distributed homogeneously in the hot extruded alloys. Compared with the cast one, the extruded alloy shows predominant mechanical properties as the result of refined microstructure and the dispersed intermetallic phases formed during hot extrusion. The ultimate tensile strength and the yield tensile strength of the extruded alloy were 354.8 MPa and 305.9MPa respectively.
Game Analysis of Photovoltaic Enterprise Competitive Strategy Based on Technology Innovation
Authors: Geng He Jiang , Zhang Ren Jun
Published: August 2013

Analysis of model shows that technology innovation provides photovoltaic product additional value, increases photovoltaic product differentiation and reduces consumers price sensitivity, but enterprise profit is decided by the efficiency of technology innovation, only the high efficiency of technology innovation can increase enterprise competence. Finally, the paper gives the strategy advices on technology innovation of photovoltaic enterprise.
Effect Evaluation of Experiment Teaching Based on Grey Evaluation Method
Authors: Zhou Li
Published: August 2013

That the basic education reform conforms to the demand of teaching development as well as the professional capabilities, teaching level, and teaching effectiveness of experimental class teachers are supposed to be improved has become the important objectives of developing and optimizing the experimental teaching reform. This paper firstly analyzed the present situation of experiment teaching effect evaluation , and then analyzed the advantages of gray evaluation method in the experiment teaching effect evaluation compared with the traditional experiment teaching effect evaluation. Thus this paper built the optimized experiment teaching effect optimization system by further applying the gray evaluation method to analyze and evaluate the experiment teaching effect and then optimize teaching evaluation process, and finally improve work efficiency and evaluation accuracy .
Tickets Sales Policy for Two-Stage Fares Airline Considering Unidirectional Substitution of Cabin and Swapping Applications
Authors: Wang Feng Chao , Mo Zhen Xiu , Li Cui
Published: August 2013

Tickets sales policy of two routes for two-stage fares airline are studied under the following three conditions in this paper: neither unidirectional substitution of cabin nor swapping applications is considered, only unidirectional substitution of cabin is considered, both unidirectional substitution of cabin and swapping applications are considered. We formulate the corresponding decision model and derive the optimal tickets amount and expected revenue. It shows that compared with the condition that neither unidirectional substitution of cabin nor swapping applications is considered, when only unidirectional substitution of cabin is considered, the expected optimal tickets amount and expected revenue increase; compared with the condition that only unidirectional substitution of cabin is considered, when both unidirectional substitution of cabin and swapping applications are considered, the expected optimal tickets amount and expected revenue increase.
Study on Inspection and Adjustment of Engineering Construction Project Schedule Plan
Authors: Lv Hong , Zhang Long Han , Xu Shi Wei
Published: August 2013

Project schedule control is one of the important control goals in project management. It is an important measure to ensure that the project is completed safely, reasonable arrangements for the resources supply and saving cost. Any of the projects must be by means of scientific planning and control methods in order to achieve the desired goals. Deviation analysis is an ongoing work in the progress of project, how to determine the deviation of project timely and accurately, the method that used is crucial. This paper chose a highway construction project as research object, using the Inspection Acts include Gantt chart, S-shaped curve and Banana-shaped curve of schedule, and made the comparative analysis for project to identify deviations and take measures to adjust in order to ensure the project is completed on schedule.
Mechanism and Framework of Entrepreneurial Opportunity Identification: A Cognitive Information Processing Perspective
Authors: Zhang Ying Kui , Zhang Xin Rui
Published: August 2013

Identifying and selecting right opportunities for new businesses are the most important abilities of a successful entrepreneur. It is an important issue to identify quickly entrepreneurial opportunities and make the right decisions in the dynamic environment. Based on the CIP, this paper thinks that entrepreneurs entrepreneurial opportunity identification process is information processing and analysis in substance which is affected jointly by three factors: information resource, entrepreneurial recognition ability, and personality traits and risk tendency. Then this paper constructs the mechanism and framework of entrepreneurial opportunity identification, this framework is helpful to understand the specific mechanism.
Fire Squadron Rescue Plan Management System Design
Authors: Zhang Shi Xing
Published: August 2013

The management and use of rescue plan is an important task for the fire brigade. Combined with the actual work needs, the paper designed a fire squadron rescue plan management system. Using the system, the network operation of the entire process of squadron-level plan management can be achieved, which can provide information to support practical rescue operations, guide rescue training and exercises of fire squadron, and help firemen disposing disaster properly. The system is helpful for improving the response speed of rescue operations and protecting the safety of firefighters.
Study on Fuzzy PID Control of Amplitude Modulation Atomic Force Microscopy
Authors: Yao He Ming , Jiang Sha Ru
Published: August 2013

According to the characteristics of probe motion of Amplitude Modulation Atomic Force Microscopy (AM-AFM), the model of AM-AFM probe dynamic process is obtained through Euler - Bernoulli's equation. Based on AM-AFMs negative feedback control system with a fuzzy PID control module, a complete AM-AFM system simulation platform is established. By using fuzzy system, fuzzy PID controller makes the real-time adjustment of PID parameters come true, that is, this method overcomes the difficulties of traditional PID parameter tuning and thus high-quality control effect is achieved. Moreover, this article got a set of initial value of off-line adjustment using Ziegler-Nichols method. The value is applied in the setting of fuzzy center so as to further improve the control effect. The simulation of the scanning of two typical samples is made to demonstrate the control effect of fuzzy PID. It proves the control effect of fuzzy PID and indicates that fuzzy PID can significantly improve the AM-AFM image quality of samples which have steep surface.
Supply Chain Scheduling on a Single Machine with Availability Constraint
Authors: Fan Jing
Published: August 2013

In the actual industrial engineering, the machine may be checked to ensure that they can work efficiently. Thus, the machine has an unavailable interval so that the job could be interrupted. When the machine becomes available again, the job can be resumed processing. When the job is completed, it can be delivered in batches to one customer by vehicles with capacity constraint. Our goal is to minimize the sum of arrival time of batches and the total delivery cost. We develop an optimal polynomial time algorithm and give an instance to verify the algorithm.
Construction of Library Management System Based on Neural Network Theory
Authors: Wang Xin Yu , Zhang Qing Song
Published: August 2013

The management information systems have been adopted in various areas with the increasing of popularity of computer technology. Library management system is one of the typical applications. Neural network can greatly help the library management system, especially in data analyzing function. This paper designs the library management system based on neural network theory,taking bibliographic classification as an example. The new model expands the original system.
Adaptive Sliding-Mode Observer Scheme for Sensorless Control of Low-Speed IPMSM Drive
Authors: Xiao Fei , Yuan Lei , Chen Ming Liang
Published: August 2013

This paper proposes an adaptive sliding-mode observer (SMO) for a low-speed interior permanent magnet synchronous motor (IPMSM) drive. In this paper, an adaptive SMO is employed to estimate the rotor speed and extended EMF, a soft phase locked loop (PLL) technology is used to estimate rotor position due to its strong robustness since under voltage phase unbalance or polluted and variable-frequency environment. The global asymptotic stability of the proposed adaptive SMO is verified using Lyapunov stability analysis with considering motor parameter variations. Simulation results are presented to verify the principles and to demonstrate the effectiveness of the proposed method.