bluuebunny/crossref_metadata_2025 huggingface dataset:
Grey Clustering Analysis of Cotton Coolmax Weft-Varied Fabric Comfortability
Authors: Cai Yong Dong
Published: March 2014

Cotton Coolmax weft-varied fabric comfortability was discussed. Nine kinds of Coolmax weft-varied fabric were selected as example, JC9.7tex yarn was used as warp. Alkali peeling Coolmax 7. 6tex yarn, common Coolmax 8.3tex yarn and JC 9.7tex yarn were combined and used as weft. Property of the nine fabrics were tested including air permeability, moisture permeability and capillary effect. Method of grey clustering analysis was adopted to analyze test data, advantages and disadvantages orders of the nine fabrics comprehensive comfortability can be got. It is considered that cotton Coolmax weft-varied fabric comprehensive comfortability can be improved by alkali peeling.
Image Trading Scheme Based on Dynamic Multiple Watermarking
Authors: Xiao Jun , Li Deng Yu , Leng Xiao Xu
Published: March 2014

Online digital image trading is a new tendency in digital stage, and multiple watermarking is one of the most important techniques that can be used to protect copyright and content security. In this paper a dynamic multiple watermarking method based on spread transform is introduced into the digital work trading frame developed from the frame proposed by European Union in order to make sure that the frame can make a good balance among the rights and interests of the work originators, the work publishers and the buyers really and truly.
A Review of Super-Resolution Methods for Nonorthogonal Analysis of Highly Correlated Signals in Noise
Authors: Wei Shuang , Jiang De Fu , Fattouche Michel
Published: March 2014

Highly correlated signals exist in many applications of different fields of physics and engineering. But existing techniques for signal estimation and detection are either too complex or do not perform adequately when the observations consist of highly correlated signals in noise. Thus, this paper presents a review of three important super-resolution methods to discuss their characteristics and limitation for extracting the highly correlated signals in noise.
The Current Status and Development Trend for Communications Satellite Payloads
Authors: Jiang Nan , He Yuan Zhi
Published: March 2014

Communications satellite payload directly determines the performance of the satellite. In this paper, we focus on these advanced satellite communications systems of representative: WGS, MUOS and AEHF, including function and structure of the payload. Then the development trend of communications satellite payload is analyzed. Some suggestions for the development of China's communications satellite payload are proposed at last.
Skype Traffic Identification Based on Trends-Aware Protocol Fingerprints
Authors: Wang Wei , Cheng Dong Nian
Published: March 2014

The P2P technology consumes the largest proportion of network traffic and is usually encrypted, which is lack of supervision. Accurate and rapid identification of encrypted P2P traffic, represented by the famous Skype, is of great significance to improve the network quality of service and enhance security control. In this paper, a trends-aware protocol fingerprints model is proposed based on the statistical signatures of signaling interactions and content transfer phase of Skype. The proposed method can sense traffic trends by trends-aware weighting functions and identify Skype traffic with anomaly scores in real-time. Experimental results show that the precision and real-time performances of the proposed algorithm is better than several state-of-art encrypted traffic identification methods, such as the protocol fingerprints and C4.5 algorithm.
Application Research on Cluster Analysis in Unsupervised Image Classification
Authors: Meng Ha Dong , Liu Wen Bo , Song Yu Chen
Published: March 2014

In order to improve the application effectiveness of cluster analysis in unsupervised image classification, a clustering algorithm based on density and adaptive density-reachable is designed and implemented. Compared with the classifying results of K-means and hierarchical method, it is evident that the algorithm has good effect on unsupervised image classification.
Simultaneous Generation of Independent Wired and Wireless Signals Using a Dual-Electrode MZM in ROF System
Authors: Ying Xiang Yue , Liu Tai Jun , Li Jun , Weng Hua Feng , Liu Li
Published: March 2014

In this paper, a novel Radio-over-Fiber scheme to simultaneously generate and transmit baseband (BB) and millimeter-wave (MMW) signal by using a single dual-electrode MZM is proposed. By employing this analog ROF signal transmission techniques, highly transparent fiber-wireless networks, which are ideal for multi-standard wireless system operation can be realized.
A Method for Printing Image Sharpening Based on the Principle of Electronic Scanners
Authors: Liang Ju Hua , Qian Jun
Published: March 2014

For enhancing printing images quality so as to meet human visual needs, two ways of scanners clarity compensating by optical unsharp-mask and electronic second differential had been devoted based on investigating the cause of cut down on presswork definition produced by printing, the advantages of the twofold method which combine the two was also discussed in the thesis. The method of applying the technique was proposed in digital image processing. Tests had been done on standard images by the suggested method in Matlab, normal ways of USM and second differential were also used for comparing, printing proofs were made after manipulation for subjective evaluation on sharpening degree, statistic analysis on assessment data was also made, which shows that: the second differential method will bring the highest clarity on images with the side-effect of too heavy edges, USM can get relative mild margins and slightly lacking of distinct, the twofold method get preferable contour strengthen and smoothness, it can be used in printing image sharpening.
Command Pattern Classification Model Based on Experimental Data Mining
Authors: Wang Zi Ming , Li Dong , Wang Han Li , Li Jing
Published: March 2014

This paper builds sample analysis data sets through the analysis of specific commands behavior in command behavior experiment, and selects typical commanders as reference sample, proposes a command pattern classification model based on k-means clustering algorithms. The command model calculation is simple, easy for computer implementation, and is of great significance in understanding and mastering specific commanders characteristics, and application to practical operations and training.
An Adaptive Routing Selection Measure for Mobile Data-Gathering Mechanisms in Wireless Sensor Networks
Authors: Bai Xu , Wang Chang Hong , Zhang Jia Yan
Published: March 2014

Wireless Sensor Networks (WSNs) allows users to accurately monitor a environment by intelligently combining the data from the distributed nodes. A cluster-based network topology can increase the scalability and lifetime, the cluster head gathering the data and transmitting them to Sink with single hop or multi-hop communication. In this paper, the energy consumption model for clustering networks were analyzed and an adaptive energy-efficient routing approach was given, then the hop mode selection condition was analyzed and simulated.
Sharing and Interaction of ECG Information Based on HL7 Standard
Authors: Sun Ying , Wang Qi , Ye Sheng Hua
Published: March 2014

The application of mobile ECG detection plays an important role in finding out what the heart conditions are. It will prevent and treat the cardiovascular disease. At present, it is hard to exchange the information in various heterogeneous systems. HL7 standard specifies the medical information transfer format, and improves the degree to share the data among the medical information systems. Based on HL7 standard and web service technology, this paper designed HL7 engine to realize the seamless data transfer among the heterogeneous systems, and enable sharing and interaction of ECG information, as well as improve the working efficiency and competitiveness of medical system.
Study on Virtual Separation Technology in Radio Fuse Tactical Performance Tests Isolation Technology
Authors: Xu Ai Guo , Jia Li Xin , Jiang Zhi Bao , Yang Jin Wei
Published: March 2014

Based on the analysis of tactical characteristics testing of radio fuze, a conception of dummy isolation technology of high frequency and low frequency of electronic module was put forward. By Studying on the principium of fuze Doppler signal input and collection, the high frequency and the low frequency of electronic module was dummy isolated and one of the tactical characteristicsburst-height of radio fuze is nicely tested.
Speaker Recognition Study Based on Optimized Baum-Welch Algorithm
Authors: Xu Hui Hong , Gao Su Chun
Published: March 2014

The speaker recognition is a sort of biological recognition technology according to person's sound to identify .The article based on vc platform implement speaker recognitions function using VQ and HMM technology. using genetic algorithm to improve the Baum-Welch algorithm.Trough experiment verificate that improved-arithmetic enhance recognition effect.
Test and Analysis on the Interference from Wi-Fi Signals to the CBTC Systems
Authors: Li Ming , Wang Hua Shen , Yang Fan
Published: March 2014

Influenced by Wi-Fi signal interference, Shenzhen subway is forced to stop frequently, which has caused enormous safety hazard. This paper proposes a method to test the interference transferred from Wi-Fi signals to the Communication Based Train Control (CBTC) systems, then the testing data are collected and analysed. The test is aim to two signal transmission modes: free wave and leaky cable. The test result shows that the signal transmission mode of leaky cable is more reliable, while the transmission mode of free wave has the worse anti-interference capability to Wi-Fi signals. Particularly, it is an effective way to apply for specific frequency bands, which will make a contribution to reducing the interference effect on the CBTC systems caused by Wi-Fi signals.
Design of the Splitting and Taking Pest Machine
Authors: Wang Li Ping , Guo Yi , Fu Gang , Dong Jiang Hui
Published: March 2014

In order to meet the requirement of splitting wood to take out the pests in the plant protection research work, the splitting and taking pest machine is designed, which working mode is based on spiral transmission. According to the wear condition, the main structure parameters of the spiral transmission device for splitting were determined. Furthermore, the strength of the dangerous section of screw rod, the strength of nuts' teeth, the self-lock of spiral pair and the stability of screw rod were checked. The virtual prototype of splitting and taking pest machine is made by using SolidWorks software, the motion simulation results show that no interference among the various parts. The test results of the prototype indicate that the machine can meet the job requirement to split wood and take out the pests. In addition, the machine has many features, such as simple structure, working smoothly and low vibration.
Research on Frequency Hopping Parameters of Hybrid Spread Spectrum Signal
Authors: Fu Gang , Zhu Dong Xu , Feng Yue
Published: March 2014

In recent decades, Hybrid Spread Spectrum (DS/FH) signals has been rapidly developed and extensively used in the field of both military communications and aerospace monitoring. Through the study of hybrid spread spectrum signal, firstly use time-frequency analysis to get the time-frequency diagram of hybrid spread spectrum signal, and then wipe off the DS pseudo-code, lastly use the high-resolution frequency to estimate the parameters of hopping frequency signal, in order to provide a kind of ideas and reference to test hopping frequency parameter of hybrid spread spectrum signal.
Research on Soft Demodulation of Telemetry Signal in Reentry Telemetry Environment
Authors: Fu Gang , Zhu Dong Xu , Geng Wen Jian
Published: March 2014

PCM/FM system is one of the most widely used in the missile and rocket telemetry system. For the problem that the breakthrough tradition demodulation method of demodulation threshold leaded by the telemetry signals low signal noise ratio (SNR) of target spacecraft reentry telemetry environment, a baseband complex rotating orthogonal MSD based soft PCM/FM signal demodulation method is studied combined with the PCM/FM signal phase characteristic. The corresponding synchronization algorithm is applied to ensure the smooth operation of the demodulation. The simulation and test results verify the soft demodulation algorithm can make reduce the demodulation threshold effectively.
Modeling for Vehicles' Safe Driving Behavior for Pavements Damage
Authors: Cao Zhi Chao , Yuan Zhen Zhou , Gao Yong Feng , Meng Jun
Published: March 2014

Based on the domestic and foreign studying of vehicles lane-changing micro behavior theory of modeling and simulation, the model for vehicles safe driving behavior for pavements damage is established. A Logit-like discrete choice model for lane-changing is described under the constraint of pavements damage. The mechanism of vehicles lane-changing is analyzed. Calculation method of the minimum longitudinal spacing is established, which guarantees the no overlap between the vehicle track and pavements damage. The method can improve the safety and comfort during the lane-changing maneuvers. In future research, the model can provide warnings or take evasive actions to avoid risk for vehicles safe driving behavior.
One Platform-Independent Graphics Workstation Design Technology
Authors: Xiao Xiao , Kun Xiao
Published: March 2014

Based on the research of special new workstation system module, this paper focuses on the solution of key technologies such as high performance computer system integration, high resolution video frame extraction, multi-layer multiple analog video window fusion, independent video input source synchronous, large capacity and high density FPGA design. Using high-performance workstation main control module and video cards as the foundation, develop a variety of sensing information radar display module, a variety of types of high-resolution graphics/image frame extraction module in order to realize the seamless connection with high performance computer.
Analysis on Potentiality Exploitation of GSM Network under Four Network Cooperation
Authors: Jiang Min , Chen Zong Mei
Published: March 2014

The article focuses on exposing the problems that traditional GSM encountered like high cost, expansion difficulty, low utilization of data business and serious interference under the present situation of the coordinated development of GSM, TD-SCDMA, WLAN and LTE, and puts forward that problem-solving ideas and countermeasures of differentiation wireless resources regulating allocation, miniaturization base station, downward data business power control and strengthening device quality investigation can obviously improve the bearing capacity and service quality of GSM network and upgrade its data business performance.
Robust Object Tracking Based on Modified Mean-Shift Algorithm
Authors: Li Wei , Li Xing Wei , Lu Rui Tao , Zou Dong Dong
Published: March 2014

In this article, aiming at the flaws in traditional Mean-shift algorithm for object tracking, we improve the traditional algorithm based on the fusion of Grayscale and Gradient using a layered approach. This algorithm can describe the object more exactly by using Grayscale and Gradient dual tracking factors in object tracking; And it makes up the flaws in traditional Mean-shift algorithm for information expression of spatial location by using layered approach and spatial histogram in describing object. Experimental results show that modified Mean-shift algorithm is superior to traditional Mean-shift algorithm in object tracking with better Robustness and precision, and it can suit deformation, spin, interference, shield and more complex tracking problems.
Preparation and Measurement of Quantum State between Two-Dimensional Dots in Quantum Network
Authors: Wang Zhi Guo
Published: March 2014

Currently, researches on the preparation and measurement of quantum state between two-dimensional dots in quantum network are mainly dot-to-dot or dot-to-multi-dot transmission schemes. The existing experimental and theoretical work is relatively scattered, and the overall knowledge is incomplete. The article proposes the preparation of multiple quantum entanglement state, the measurement and classification of multi-state and multi-body quantum entanglement, the design of the preparation and measurement scheme of quantum state between any two one-dimensional dots and proposes the transmission scheme of quantum state between two-dimensional dots in quantum network. Theoretical guidance is provided for relevant experiments through deep study on the problem.
The Research of Face Verification Based on Perceptron Algorithm
Authors: Gao Hai Kuo , Ma Sheng Nan
Published: March 2014

In recent years, as the need of counter terrorism and security, countries have increased investment in the security field and human identification is the core issue of security. This paper use Perceptron Algorithm Method to verify human face with the ORL face database. The results show that when no fresh face appears, the accuracy rate is 99.67% and decreases to 98.14% with fresh face. Later, its performance in reality is tested by importing a new class from the camera. The result is 7 (of 10) photos is verified correctly and 3(of 10) can not judge (no wrong verified).
An Application of 3-D Harris Operator in Video Frame Feature Detection
Authors: Lv Jing Guo , Kong Wei Zhe , Li Dong Yue
Published: March 2014

In order to solve the problem of image matching, the points matching in the fields of digital photogrammetry and computer vision is researched very deeply. The accuracy of the feature points plays an important role in making right matching results. The paper introduces a method of 3-D Harris detector. An algorithm of Gaussian smoothing is applied for eliminating sudden gray change. Corners of all pixels are detected in a video using Harris. The results of experiments show that the 3-D Harris detector is accuracy and efficient.
Development and Testing of Four-Wheel Drive In-Wheel-Motor Electric Vehicle
Authors: Wu Jian , Bai Hong Tao , Deng Wei Wen , Liu Chuan Fu
Published: March 2014

This paper describes the development of a full electric vehicle prototype with a new generation of drive-by-wire chassis, which consists of a four independently actuated in-wheel-motor drive system, an electric power steering (EPS) system, an electro-hydraulic brake (EHB) system and a lithium battery energy storage system. This novel electric vehicle called I2EV (I2 stands for Intelligent and In-wheel-motor) is designed and tested on a chassis dynamometer to study its performance. Then the road performance of the vehicle is verified through road experiments. These tests clearly show that I2EVcan be employed in further study of intelligent vehicle and advanced integrated chassis control.
The Ducted Propeller Design and Hydrodynamic Performance Analysis
Authors: Lai Hai Qing , Bao Guo Zhi , Liu Wei , Chen Ning
Published: March 2014

This paper aim at the integrated rudder propeller power transmission system which is specific to the towing and tugging ships rudder propeller system, presented an analyzing method with ducted propeller design. Analyzed the thrusttorqueefficiency and total pressure distribution law of blade in the condition of open water work of the propeller by means of finite element method. The numerical results and the flow details are concluded and compared with published experimental data, .Results displayed in good agreement with theoretical analysis results. Initially formed a whole process of design the rudder propeller from the initial ship type parameters to prediction of propeller under open water test condition, and had a certain reference value.
The DSP Implementation of Algorithm for Voice Speed Changing and Pitch Shifting Based on TD-PSOLA
Authors: Zhang Yi Yi , Wang Fei Fei , Du Wei Tao
Published: March 2014

In this paper, we present an algorithm for voice speed changing and pitch shifting based on TD-PSOLA. MATLAB simulation results indicate this algorithm can effectively improve the precision of pitch detection and convert speech into desired one. After the algorithm being realized and optimized, a real-time system is implemented on DSP, which can produce desired fundamental frequency and duration.
The Research of Comprehensive Network Maintenance Management System Based on BDS & GPS
Authors: Zhang Xiao Mei , Cheng Yuan , Qi Bing , Xiong Chen
Published: March 2014

According to the existing network maintenance system and the basic principles of composition, this paper provides a terminal system scheme and network maintenance management system based on BeiDou Navigation Satellite System (BDS) compatible with GPS by analyzing the system structure, functional architecture and software architecture. Studies have shown that the BDS compatible with GPS system can manage and monitor personnel and vehicles in real time and improves the reliability and security of network systems.
A Posture Recognition Method Based on Skeletal Node and Geometric Relation Using Kinect
Authors: Xie Liang , Liao Hong Jian
Published: March 2014

Posture recognition plays an important role in three-dimensional virtual experiments, it means that to complete its specific function by a particular posture to control program in responding an action. In order to easy use and making the posture recognition more accurate, this article proposed the use of Kinect sensor to get articulation point information, through its the Euclidean distance and angle of the articular point to distinguish a particular posture. The results show that this method can get higher recognition rate, and expand action library at any time to meet the decision requirements of different postures. Its helpful to reuse software and improve the efficiency in the use of virtual experiment.
Research on Computer Networks Reliability Optimization by Parallel Genetic Algorithms Method
Authors: Cao Xu , Pan Jun
Published: March 2014

This paper can be asserted that the use of parallel genetic algorithm can not only effectively improve the calculation speed and optimize the quality, but also can improve a lot of advantages. Reliability optimization for computer net works, subject s to cost constraints, is a NP-hard combinational problem. Reg ar ding a known network topology, the problem of choosing links and switchers among alternatives different in reliability and cost is settled by a Coarse-grained parallel genetic algorithm, which maximize the network availablity within a fixed budget. T he simulations on a dedicated cluster demonst rate that contracting to the sequential counterpart, o ur par allel GA improves the quality of plans greatly with an evident speed-up.
A Distributed Network Architecture Design for E-Commerce Sites
Authors: Zhao Yue , Qian Xu
Published: March 2014

E-commerce website with distributed architecture can deal with millions consumers to access and read and write at the same time. In this paper a new distributed network architecture designed for e-commerce website is proposed. Resource allocation and scheduling of the distributed architecture is discussed. Experiments show that the new architecture features a more quick and high response, and provide a kind of method for improving and perfecting the computing at the same time, filling the needs of producing.
An Automatic Code Generation Framework for Service Dynamic Binding
Authors: Xie Wu Ping , Xue Jin Yun , Jiang Dong Ming
Published: March 2014

Service-oriented computing is a novel computing paradigm that utilizes simple small-scale services as fundamental elements to orchestrate applications that are complex large-scale services, while traditional software development methods and running environment are insufficient to support the challenges required by dynamic services binding and service reuse. We concentrate on service-oriented programming, and propose a mutable pragmatic and effective automated code generation framework for service dynamic binding. Service-oriented applications are developed in a unified and coordinated way, and the additional codes are generated automatically to invoke diverse services developed by distinct technologies. Service dynamic binding is achieved by filtering from a set of candidate services through the execution engine.
HF Network Integrated Management Technology Based on IP
Authors: Luo Rui , Lin Luo , Cheng Fang , Liu Jia , Zheng Yong Xing
Published: March 2014

U.S. put forward the protocol standard of 3G generation HF communication, which emphasizes HF network automation degree and interconnection capacity between HF and other network to support a larger network application. HF in the form of access network and the integration of existing IP network should be able to get rid of the island model of traditional HF communication of point to point and self-managed,self-used. give full play to the HF over-the-horizon transmission and strong anti-damage ability of their own advantages and efficient multiple IP network data transmission service ability, provide a wider range of communication for cable users, provide efficient management for wireless subscribers.Compared with the traditional HF communication mode. HF network achieve efficient planning, management and control through the integrated network management system based on IP. Enhanced the network management and control ability as well as anti-damage and anti-disturbance ability.
Resources Allocation Scheme Based on Mode Switch for Multicast Services in MBSFN
Authors: Wang Min , Zhang Shu Guang , Sun Qiao Yun , Zhang Yu
Published: March 2014

The multimedia broadcast and multicast services (MBMS) in 3GPP LTE is characterized by multicast broadcast single frequency network (MBSFN) operation. The multicast services are transmitted by single frequency network (SFN) mode, and the unicast services are delivered with point-to-point (PTP) mode. To avoid the network congestion of the multicast services in MBSFN, a novel resources allocation scheme (RAS) based on mode switch for the multicast services is proposed. The RAS takes advantages of the mode switch between SFN and PTP for the multicast services and minimizes the demanded radio resources of the maximum load cell. The simulation results show that the proposed RAS needs less demanded radio resources of the maximum load cell than SFN mode for all the multicast services.
Data Placement and Query for Cloud Computing Based on MyHeawood Network
Authors: Huang Xin , Peng Yu Xing , You Peng Fei
Published: March 2014

The massive data in Data centers network will be frequently accessed massive datasets for cloud services, which will lead to some new requirements and becomes an important issue for interconnection topology and data management in cloud computing. According to the cost-effective, the paper proposes a new interconnection network MyHeawood for cloud computing. MyHeawood is constructed by small switches and servers with dual-port NIC according to recursive method. The data placement strategy in MyHeawood is a hashing algorithm based on the family of hash functions. MyHeawood uses three replicas strategy base on master copy, which is allocated in different sub layer to improve the reliability of data.
Green Design Methods Based on Product Configuration
Authors: Dai Zhi Yong , Yuan Ming Hai , Cheng Shuo , Ji Ai Min
Published: March 2014

According to the overseas and domestic researches on green design and mass customization, this paper does research on green product configuration design method based on the three configuration algorithms, and proposes a new product configuration method aiming at realizing the goal of green design under mass customization (MC). By studying on green design method based on product configuration, strong support is provided for enterprises with green manufacturing both in theory and method.
Research on the Construction of Smart Campus Based on the Internet of Things and Cloud Computing
Authors: Liu Yong Liang , Zhang Wei Hong , Dong Peng
Published: March 2014

Smart campus is an inevitable trend in the development of digital campus construction. The internet of things and cloud computing are the key technologies in the construction of smart campus. The authors expound the concepts of smart campus and put forward overall architecture of smart campus based on the internet of things and cloud computing. They elaborate on the network foundation platform, service platform and the construction of intelligent application platform in detail. Finally, discuss the problems should be noticed in the smart campus construction.
Practice Research on Design Concept of AutoCAD Based on Auto LISP Programming Language
Authors: Li Ping
Published: March 2014

By applying the Auto LISP programming language to the design concept of AutoCAD, this paper realizes the secondary development of AutoCAD software. Through the Auto LISP design, this paper implements three kinds of constituted artistic effects for the fractal tree of landscape architecture, namely, plane, color and stereo. At the same time, this paper establishes the fractal mathematical models and algorithms for the landscape design. In addition, the entity model of landscape is built through the AutoCAD landscape design library and the fractal tree is established in the entity model. Through the three-dimensional rendering of plane, stereo and color, this paper achieves wonderful digital multimedia visual communication effect. Thus, it provides a technical support and theoretical reference for the computer simulation design of modern landscape.
Analysis on Fatigue of Hinge Sleeve in Cubic Press Based on ANSYS
Authors: Qi Wen Zheng , Sun Xuan
Published: March 2014

Hinge sleeve of cubic press is the key important equipment which is used in the field of processing and production of super-hard materials, and is always under super high pressure. So the problem of fatigue must be concerned. In this paper, the model of hinge sleeve of cubic press was established in ANSYS and UG. Fatigue of hinge sleeve in cubic press was analyzed by ANSYS. The results of calculation shows that the times of work period of hinge sleeve reaches 61550 under extreme load, satisfied the requirement of design.
Design of University Archives Network Information System Based on J2EE
Authors: Deng Xiu Qiong
Published: March 2014

With the development of information technology, education office modernization is faced with many opportunities. How to use modern information technology to improve the efficiency and quality of university archives, and achieve ideal results of optimization is today's hot topic. This article first carries on the contrast analysis of the current archives management mode. Through the comparison, we use J2EE framework to establish the network information system of university archives based on the components and level of J2EE, and use MVC structure to realize network business logic, control logic and classification of data display logic. And through the black/white box test and logic coverage, it verifies the stability and operability. The results show that the university archives network information system has high operability. The best load information system should be maintained up to 350 users.
Establishment of New-Type University System Based on Information and Network Technology
Authors: Wang Xiao Bing , Hu Qing Qing , Peng Zi Fei
Published: March 2014

At the vital phase of universitys transforming from denotation expansion in quantity to connotation promotion in quality, in the design of modern university system, attention should be paid to the stakeholders rights and interests, especially teachers living state and teaching quality, and students individual needs and discourse power, so as to motivate the innovation vitality of the two principal parts teachers and students. From this perspective, it is a brand-new attempt to establish a new-type university system based on the technology of information and network.
Data Parallel and Scheduling Mechanism Based on Petri Nets
Authors: Dou Wan Feng , Zhao Jing , Yang Kun , Xu Min
Published: March 2014

Data-parallel and task-parallel methods are the basic methods frequently used for algorithm design in parallel computing. Data-parallel method as name means is used for partition data to be processed into some small blocks considering storage and computing capacity such as memory size of a computation node, node number to take part in parallel computing and total data size, and etc. On the other hand, data dispensing strategy is an important problem carefully considered to increase the efficiency of computation. According to the characteristics of analysis of digital terrain, petri nets is introduced to describe the parallel relationships within data partitions based on data granularity model considering two kinds of computing modes, shared memory and distributed memory respectively, and corresponding scheduling algorithms are proposed for load balance. The experimental results show that our method is very usable to data partition and dispensation, in particular to distributed memory mode.
Analysis of the Dynamic ID-Based Remote User Authentication Schemes Using Smart Card for Multi-Server Environments
Authors: Li Xue Lei , Wen Qiao Yan , Li Wen Min , Zhang Hua , Jin Zheng Ping
Published: March 2014

In this paper, we analyze and point out several weaknesses in the dynamic ID-based remote user authentication schemes using smart card for multi-server environments, and present the countermeasures to enhance the security of the schemes. Taking Li et al.'s scheme for instance, we demonstrate that their scheme does not provide forward secrecy and key privacy for the session keys, and cannot resist offline password guessing attack. Furthermore, the reasons of these security weaknesses are analyzed through extending the attacks to its predecessors. Finally, the improved ideas of local verification and authenticated Diffie-Hellman key agreement are presented to overcome the weaknesses mentioned above.
Research on Gray-Box Testing Methods for Software Fault Injection
Authors: Xing Xiao Qi , Liu Bin , Ling Dong Yi
Published: March 2014

Because of various advantages of software, implemented system function is more and more through software. In order to ensure the system is running, the verification of fault-oriented processing function module need software fault injected techniques to support. The traditional software fault injection technique method mainly studies the injection achievement of various fault modes. In order to achieve better test coverage, it is necessary to analyze software fault related needs and structure. Therefore, this paper combined gray box testing methods and software fault injection technique, it is proposed gray-box testing technique oriented to software fault injection, and give fault injection process framework.
Design of Radio Program Production System Based on CSCW
Authors: Liu Long , Wang Yong Bin , Wang Qi
Published: March 2014

Considering the feature of high-security and complex business logic of radio program production, combining with the theory of Computer Supported Cooperative Work (CSCW), we designed and implemented a radio program production system with high-security and strong practicability. Based on the C/S structure and .Net platform, the system implements the unity query management of different data sources by applying and extending the Language Integrated Query (LINQ) technology. This paper focuses on the overall architecture, service module and key technologies of the production system.
The Research on WLAN and its Traffic Characteristics
Authors: Ren Qiong , Tao Jun
Published: March 2014

This paper illustrates the IEEE 802.11 WLAN, Bluetooth and wireless ATM, and then analyzes the structures and traffic characteristics of them. The traffic characteristics of these three kinds of WLAN are summarized.
Key IOT Technology and Application Research
Authors: Bing Xu
Published: March 2014

Key core technologies of IOT (internet of things) have to be addressed to achieve rapid development. This paper focused on studying RFID, wireless sensor network (WSN) and TCCP which were integrated to address the IOT application problems. Meanwhile, an IOT architectural model was established and the IOT applications in real-time medical monitoring, intelligent transportation system (ITS), intelligent appliances and intelligent agriculture were introduced.
Design Tradeoffs in Applying CAS to File System Backed by Amazon-S3
Authors: Xue Nian , Chang Le
Published: March 2014

This paper first introduces the basic concepts of related technologies and cloud storage, and then analyzes the architecture and components of cloud storage platform which is compatible with Amazon S3. And particularly shows the implementation of CAS (Content Addressable Storage) which also needs to communicate with S3 server. S3fs (Amazon S3-based file system, which called S3fs) is developed through the frame of FUSE based on Amazon S3. The communication between CAS and S3 is transparent for users. S3fs also take the management of chunked file indexed by hash value, which could reduce the consumption of bandwidth caused by synchronization.
Performance Analysis for Hybrid Cooperative Beamforming in Wireless Relay Networks
Authors: Han Chun Lei , Lin Mei Lu , Yang Ye
Published: March 2014

This paper considers a relay-assisted hybrid cooperative beamforming system in independent and identically Rayleigh fading channels. In this system, each relay can adaptively employ amplify-and-forward (AF) or decode-and-forward (DF) protocol for maximizing the instantaneous signal-to-noise ratio (SNR). Tight upper and lower bounds for the outage probability have been derived in closed form, based on which we investigate the achievable diversity of the hybrid cooperative beamforming system. We also present the corresponding upper and lower bounds of the average channel capacity. Numerical results are provided to validate our theoretic analyses.
The Moldflow Simulation Analysis of Injection Molding of the Tea Ceremony Electromagnetic Oven Baseplate
Authors: Wang Chun Wei , Mo Yan Fang , Wei He Yu , Fan Guo Tuan
Published: March 2014

In this paper, the computer simulation software Moldflow was used to analyse the characteristics of cooling, flowing, pressure maintaining, and warping in the process of injection filling for the tea ceremony electromagnetic oven baseplate, which could guide the optimization of machining process. Meanwhile, the development cycle of products would be greatly shortened and the cost would be reduced, which could produce significant economic benefits [1-5].
Based on HTTP Protocol Android Phones to Access the Web Server
Authors: Wang Ying Li , Xu Zhi Jiang , Li Si Si
Published: March 2014

The rapid development of 3 g mobile internet technology and the extensive use of intelligent mobile phone system make a user access the Internet not only can through a computer which has networking conditions, but also can through the mobile phone whenever and wherever. This paper designed and developed the method of accessing to the Web server based on the Android platform, it provides a quick and convenient way for the developers.
Hadoop and PaaS Collaborative Practice Research in Video Monitoring Platform
Authors: Zhang Wei Dong , Ding Xiang Qian , Hou Rui Chun
Published: March 2014

Cloud computing is an important area of current information technology research, particularly into the era of big data, Platform as a Service (PaaS) has become the industry to explore one of the hot clouds computing. But the function of the composition and architecture of platform services not yet conclusive, the paper on the application of Video monitoring platform through collaborative practice hadoop and PaaS, and proposed a new cloud computing platform Video monitoring solutions, PaaS and various modules under this program function overview. Provides a reference model for the era of big data Hadoop and PaaS collaborative applications.
Cloud Data Management Based on Cloud Computing Technology
Authors: Zou Yuan Jun
Published: March 2014

Cloud computing, networking and other high-end computer data processing technology are the important contents of eleven-five development planning in China. They have developed rapidly in recent years in the field of engineering. In this paper, we combine parallel computing with the collaborative simulation principle, design a cloud computing platform, establish the mathematical model of cloud data processing and parallel computing algorithm, and verify the applicability of algorithm through the numerical simulation. Through numerical calculation, cloud computing platform can be divided into complex grids, and the transmission speed is fast, which is eight times than the finite difference method. The mesh is meticulous, which reaches millions. Convergence error is minimum, only 0.001. The calculation accuracy is up to 98.36%.
Construction of Collaborative Learning Environment Supported by Cloud-Computing
Authors: Huang Lin Na , Liu Chun Li
Published: March 2014

In the field of education, cloud computing, as a basic environment and platform for the future network learning, will bring positive effect on construction of the learners' personal learning environment, on construction of school resources, on development of the educational information system. Based on the analysis of the cloud-computing influence on collaborative learning, this paper puts forward the construction strategy of collaborative learning environment supported by cloud-computing and the specific application case, which will provide reference for cloud-computing application in education informatization and social network learning.
Extending Description Logic SHOIN Based on Cloud Model
Authors: Liu Jie , Cui Lin Lin
Published: March 2014

The current research progress and the existing problems of semantics representation of the semantic Wed are analyzed. In this paper, we present an uncertain description logic C-SHOIN, which is an extension of description logics SHOIN based on cloud model. The syntax and semantics of description logic C-SHOIN are given; as well as the satisfiability of uncertain concepts. Example analysis shows that C-SHOIN is capable as the ontology language extensions to the representation of fuzzy and uncertain knowledge.
The Research on the Application of SNS Based on Web Data Mining
Authors: Zhu Jian Xin
Published: March 2014

With the development and maturity of Web2.0 technology, the Internet has become more and more intelligent, humane and social. It began gradually infiltrated into every aspect of people's lives, influence and change people's way of life. Web2.0 era as representative products -- social network has been the suddenness of a thunderbolt swept the interaction information user global social networking platforms began showing explosive growth trend however, and people are facing information explosion but the core concept of wisdom barren embarrassing situation. [
Research on Application of ONF OpenFlow-Based SDN Typical Architecture
Authors: Huang Lei , Zhang Yuan
Published: March 2014

SDN has entered into all aspects of network architecture, its advantage is that it can dynamically allocate bandwidth to different resources in the Internet business. SDN separate internet the control plane from the data plane, this shows the evolution of the virtualization from the server to the network. This paper introduces the definition of SDN and ONF OpenFlow SDN typical architecture, studied the application of SDN technology, put forward the future challenge.
Nickel Based Coatings Containing TiN Nanoparticles Prepared by Ultrasonic-Electrodeposition Technology
Authors: Wang Yong , Zhang Lei
Published: March 2014

In order to enhance the surface properties of steel substrates, nanoNi-TiN composite coatings were prepared using ultrasonic-electrodeposition technology in this paper. The effects of ultrasonic on composite coatings were studied. The X-ray diffraction (XRD) study had been utilized to detect the crystalline and amorphous characteristics of Ni-TiN composite coatings. The surface morphology and metallurgical structure of composite coatings were observed with scanning electron microscope (SEM). Finally the corrosion resistance was tested. The results show that the ultrasonic has greatly effects on TiN nanoparticles in composite coatings. And the introduction of ultrasonic and TiN particles cause the nickel grains to become fine. The average grain diameter of TiN particles is 30 nm. The Ni grain is measured approximately 60 nm. The test of corrosion resistance shows the nanoNi-TiN composite coating is proved with good corrosion resistance. The corrosion rate of 45 steel is about 5 times than that of Ni-TiN composite coating, and the corrosion rate of Ni coating is above thrice than that of Ni-TiN composite coating.
Research on Microstructure Evolution of Spray Forming FVS0812 Alloy Varies with Temperature
Authors: Zhang Rong Hua , Wu Biao , Zheng Xiao Ping
Published: March 2014

Heat-resistant FVS0812 alloys were prepared by spray forming technique. The effect of temperature on microstructure the alloys was studied by optical microscope (OM), transmission electron microscope (TEM) with energy dispersive spectrometer (EDS), differential scanning calorimeter (DSC) in this paper. The research results show that the microstructure of the material doesnt change obviously after being hold for 3 hours at 420°C temperature. When the temperature is over 420°C, the second coarse phases are found in the alloy. The studies on the microstructure of the alloy exposed at 400°C for 100 hours show that the alloy has excellent high temperature stability.
Low-Temperature Synthesis of Complex Perovskite Ba(Zn1/3Nb2/3)O3 Nano-Powders by Aqueous Sol-Gel Process
Authors: Mei Quan Jing , Li Cong Ying , Guo Jing Dong , Wang Gui , Wu Hai Tao
Published: March 2014

The complex perovskite Ba (Zn1/3Nb2/3)O3was successfully synthesized by the aqueous sol-gel method using niobium pentoxide, nitrate barium and zinc nitrate as starting materials instead of expensive organic solvent and metal alkoxides. The as-prepared nanopowders were characterized by X-ray diffraction (XRD), differential thermal analysis (DTA) and transmission electron microscopy (TEM), respectively. The results showed that the calcination process of gel consisted of a series of oxidation and combustion reactions, accompanied by significantly exothermal effects. Highly reactive nanosized Ba (Zn1/3Nb2/3)O3powders were successfully obtained at 850 °C with particle size ~100 nm. By comparison, the aqueous sol-gel process was the most effective and least expensive technique used for the preparation of Ba (Zn1/3Nb2/3)O3nanopowders.
Investigation on the Surface Quality in Electrical Discharge Machining
Authors: Wei Liang Jun , Peng Song , Wang Lin Lin
Published: March 2014

By analyzing the geometry of craters in a single pulse, the model of surface roughness in EDM was established and the main factors impacting on surface roughness were analyzed. On the base of establishment of the roughness model, the effect of discharge parameters on surface roughness was investigated by the process test method during the process of aluminum alloy 2A12 in EDM. At the same time, surface morphology obtained by different discharge parameters was comparatively analyzed. The results show that the effect of peak current and pulse width on the surface roughness is more significant, the crater on the machined surface has larger size while using higher peak current and pulse width, but the number of discharge craters is reduced.