bluuebunny/crossref_metadata_2025 huggingface dataset:
Toughness and Thermal Properties of MWCNTs/EP Composites
Authors: Ding Xiao Zhi , Wang Xia , Chain Wei , Li Xiao Yan
Published: September 2013

Multi-walled carbon nanotubes (MWCNTs) were incorporated into epoxy resin (EP) to improve the resins toughness and thermal properties. MWCNTs/EP composites were prepared by hot melt method. The fracture energy of composites was determined by wedge test, measure length of crack extension of the composites, and calculates the fracture energy. Results show improved composites toughness, as MWCNTs were dispersed in EP matrix evenly, thus absorbed impact energy. Thermal gravimetric analysis (TGA) results suggest that initial decomposition temperature increased by adding MWCNTs, with a promoted formation of a structural antiflaming network, which led to enhancement of thermal stability of the composites. The limiting oxygen index (LOI) and LU-94 data also showed a decrease of flammability of the composites.
Preparation and Characterization of Permanganate Conversion Coating for Biodegradable AZ31B Magnesium Alloy
Authors: Yan Ting Ting , Chen Qing Hua , Jiang Zhou , Wang Yu Zhen
Published: September 2013

A permanganate conversion coating was prepared on biodegradable AZ31B magnesium alloy to improve its anti-corrosion property. Morphology, composition and corrosion resistance of the coating were studied in this paper. The SEM research showed that the coating was approximately 10-12μm in thickness with net-like microcracks. The XRD analysis indicated that the coating was mainly composed of MgO, MnO and Mn2O3. Electrochemical test showed manganese conversion treatment could significant improve the corrosion resistance of AZ31B.
First-Principles Study of Thin-Film Properties of Transition-Metal Oxide SrTcO3
Authors: Cai Zeng Hua , Zhang Ling , Huang Jing , Ma Chun Lan
Published: September 2013

The structural and electronic properties of fully-relaxed thin-film SrTcO3 are investigated using first-principles method. In contrast to the insulating property of the bulk SrTcO3, the thin-film SrTcO3 with a thickness of 8.06 Å is found to be nearly metallic with a very small band gap of 0.17 eV. Its band structure meets the demands of being thermoelectric material. Moreover, thin-film SrTcO3 is found to retain its bulk high magnetic ordering temperature(TN) property, which suggests that it is applicable in high ambient temperatures. Comparison of the electronic/magnetic property of thin-film and bulk SrTcO3 is performed to explore the origins of their different electrical properties.
Effect of Anti-Cracking Agent on Cracking Property of SiO2 Optical Fiber Preform by Sol-Gel Method
Authors: Hao Shan Shan , Tang Hui , Wang Wen Xue
Published: September 2013

Optical fiber preform is the core in the industry of optical fiber manufacturing, and vapor deposition is used in general internationally of which the raw material is expensive and the craft is complex. To reduce the cost of optical fiber,we selected tetraethoxysilane (TEOS) and H2O as raw material, ethanol as solvent, hydrochloric acid (HCl) and ammonia water as catalyst,in the condition of using different anti-cracking agent, including formamide (CH3NO), oxalic acid (C2H2O4), polyethyleneglycol 2000 (HO(C2H4O)nH), N, N-dimethyl formamide(C3H7NO) and glycerol(C3H8O3), to prepare SiO2 dry gel by sol-gel method in this paper. This paper mainly researched on the effect of anti-cracking agent on the cracking property of SiO2 dry gel. The XRD analysis indicated that the samples’ microstructures were amorphous. All kinds of anti-cracking agent were worked, but the effect on anti-cracking was different,and the dry gel which was added C3HNO was smooth and optimum, which were confirmed by the results of SEM. The analysis of the transmittance showed that the transmittance of dry gel with C3H8O3 was more than 92 percent.
A Post-Processing Algorithm for Gantry-Type Automated Fiber Placement Machine
Authors: Lu Hua , Yang Fan , Jin Hong Yu , Han Zhen Yu
Published: September 2013

Automated fiber placement (AFP) is a recent development of composite manufacturing technology and is widely used in the field of aerospace. The post processing of AFP has an important influence to the stability of machine movement and the manufacturing accuracy. This paper presents a post processing algorithm of a kind of 7-DOF gantry-type automated fiber placement equipment. The linking coordinates are set up according to the structure of the machine. To solve the redundant degree problem, pose separation method is adopted to calculate the inverse kinematics of the spindle rotation DOF and the other six movement DOFs of the manipulator respectively. Finally, reasonable parameters of each motion of the machine are obtained by the proposed post-processing method.
Kinetics on the Ultrasonic-Assisted Extraction of Polysaccharide from Tussilago farfara L
Authors: Zhao Peng , Song Xiao
Published: September 2013

To explore the kinetics parameters in the ultrasonic-assisted extraction from Tussilago farfara L , the kinetic equation for polysaccharide ultrasonic extraction process was established with ball model. According to Ficks second law of diffusion, extraction process was analysed. The results can provide the valuable theory basis for the technical design and further research of polysaccharide extraction process.
Mechanochemical Processing of Ultrafine Steel Slag Powders
Authors: Li Xiao Yu , Liu Tian Cheng , Ouyang Jing , Yang Hua Ming
Published: September 2013

Mechanical grinding of steel slag is investigated and characterized using X-ray diffraction and size analyzer. The results indicate that the obtained ultrafine powders contain active mineral phases suitable for ordinary Portland cement (OPC)-Ca(OH)2, 2CaO·SiO2, 2CaO·Fe2O3. We have proved and first pointed out that the steel slag induces phase transition during grinding process and the Blaine specific surface is related to the fineness of powders and the phase transition of Ca(OH)2 in powders system. The ground ultrafine steel slag powders are applied for the high-performance concrete.
High Power LED Packaging Materials and Tooling
Authors: Zhao Zhan Feng
Published: September 2013

The high power light emitting diodes unit internal structure was elaborated from materials and tooling point of view, the unit matrix frame layout for mass production was presented for copper sheet stamping. The tooling stations were decomposed and optimized for packaging processes. The optical lens body molding cavity layout was proposed for unit matrix transfer molding. The packaging materials and tooling was analyzed from the materials processes and automatic stamping & transfer molding. Design scheme for packaging materials processes can be referenced for high power LED unit devices.
Study on Vibration of Membranes with Taylor Polynomial Method and Error Analysis for Helmholtz Equation
Authors: Wang Ke Yan , Wang Qi Sheng
Published: September 2013

In this paper, the Taylor polynomial method is used to solve the Helmholtz equation. Using the Taylor polynomial for the method, the Helmholtz equation is transformed into solving matrix equation. The error analysis of this equation is given. A numerical experiment is given to prove the efficiency and dependability of the method.
Research and Design of Optical-Fiber-Embedded Structure in Optical Printed Circuit Board under Thermal Shock
Authors: Hu Fu Kai , Zhou De Jian , Cheng Lei
Published: September 2013

To improve the serviceability of embedded optical fiber in OPCB, the paper discussed the optical-fiber-embedded structure in OPCB from the aspects of stress. Firstly, discussed optical fiber, groove and whether to use filler and provided six kinds of embedded structures. Then, finite element models were built for thermal simulation and thermal stress in fiber was calculated. Finally, compared different embedded structures from the stress in fiber and gave some suggestion about the design of embedded structure. The study proved that glass fiber is a better selection for OPCB; the stress concentrate easily appears in the edge of glass fiber; using filler can protect uncoated glass fiber, but increase the thermal stress is in coated glass fiber; when embedding uncoated fiber, U-groove is a better choice; when embedding coated fiber, U-groove without filler is the best choice. The results are helpful to the application of glass fiber in OPCB.
Hybrid Lateral Aerodynamic Modeling Based on WNN and Kernel Principal Components Feature Extraction
Authors: Gan Xu Sheng , Cui Hao Lin , Wu Ya Rong , Meng Yue Bo
Published: September 2013

In order to better describe the dynamic characteristics of aircraft through aerodynamic modeling, a Wavelet Neural Network (WNN) aerodynamic modeling method based on Kernel Principal Components Analysis (KPCA) is proposed. Firstly, the training samples are used to execute KPCA for extracting basic features of samples, and then using the extracted basic features, WNN aerodynamic model was established. The simulation result shows that, the modeling ability of the method proposed is better than that of another 3 methods. It can easily determine of model parameters. This enables it to be effective and feasible to establish the aerodynamic modeling for aircraft.
Chiral Liquid-Crystalline Elastomers Bearing Side-Chain Fluorinated Groups and Chiral Crosslinking Units
Authors: Du Chang , Zhou Nai Yu , Liu Dan , Meng Fan Bao
Published: September 2013

Chiral fluorinated side-chain liquid-crystalline elastomers (LCEs)IP-IVPwere graft copolymerized by hydrosilylation reaction. The chemical structure, liquid-crystalline behavior and polarization property were characterized by use of various experimental techniques. The effective crosslink density of the chiral LCEs was studied by swelling experiments. All the samplesIP-IVPdisplayed chiral smectic C mesophase (SC*) on heating and cooling cycles. With increasing chiral crosslinking units in the elastomer systems, the glass transition temperature and chiral smectic C mesophase-isotropic phase transition temperature of fluorinated elastomers increased slightly, indicating that the temperature range of SC*mesophase became narrow with increase of chiral crosslinking agents for all the chiral fluorinated elastomers. All the samplesIP-IVPshowed 0.12-0.16 μC/cm2of spontaneous polarization.
Study on Photochromic Materials with a Novel Photochromic Diarylethene use for Polarization Holographic Recording
Authors: He Shang Hua , Liu Gang , Cui Shi Qiang
Published: September 2013

A novel unsymmetrical photochromic diarylethene 1-(2, 5-dimethyl-3-thienyl)-2-[2-methyl-5-(2,2-dibutylfluorene)-3-thienyperfluorocyclo-pentene (1o) was synthesized and its photochromic and fluorescent properties were investigated. Diarylethene 1 changed the color from colorless to hyacinthine upon irradiation with 297 nm UV light, in which absorption maxima were observed at 554 nm in hexane and at 565 nm in PMMA amorphous film, respectively. This new photochromic system also exhibited remarkable fluorescence intensity both in solution and in PMMA film. The fluorescence spectra showed a systematic red-shift with the emission intensity of diarylethene 1 in a photo-stationary state was quenched to ca. 64%. The cyclization and cycloreversion quantum yields of 1 in hexane were determined to be 0.56 and 0.002. Polarization multiplexed image recording can be carried out in this diarylethene 1c/PMMA film as recording medium film.
Synthesis and Properties of a New Diarylethene Bearing Isoxazole Moieties
Authors: Li Hui , Tu Yuan Ming , Liu Gang
Published: September 2013

A new unsymmetrical photochromic diarylethene bearing an isoxazole moiety was developed, and its properties, including photochromism, photochromic reaction kinetics, and fluorescence properties were investigated systematically. The compound exhibited remarkable photochromism and functioned as a fluorescent photoswitch both in solution and in PMMA films. The results illustrated that the cyclization processes of diarylethene 1 belong to the zeroth order reaction when open-ring isomers changed to closed-ring isomers and the cycloreversion process belong to the first order reaction. Inaddition, using this diarylethene 1c as optical storage was performed successfully.
Formation of Metastable Phases Observed in the Zr-Co-Nb Multilayers upon Ion Beam Irradiation
Authors: Liang S.H. , Li N. , Ding N. , Li J.H. , Liu B.X.
Published: September 2013

Six multilayered films with overall compositions of Co10Zr80Nb10, Co10Zr70Nb20, Co20Zr70Nb10, Co30Zr60Nb10, Co20Zr60Nb20and Co10Zr60Nb30were first prepared by alternatively depositing high pure metals onto the NaCl single crystal substrates and then irradiated by 160 keV xenon ions with the doses ranging from 2×1014Xe+/cm2to 9×1015Xe+/cm2. It turns out that several metastable phases, e.g. amorphous phase, were formed in these metallic multilayered films upon irradiation. Meanwhile, some interesting phase transformations were also observed with increasing irradiation doses. Besides, the phase formation and transformation mechanism of non-equilibrium alloy phases are discussed in terms of thermodynamics of solids and atomic collision theory. KEYWORDS: Zr-Co-Nb system, metastable alloys, phase transformation, ion beam irradiation
Study on Photochromic Compounds with Synthesis Photochromic Diarylethenes Based on Five-Membered Heterocycle and Benzenze Ring
Authors: Ren Pan Pan , Wang Ren Jie , Pu Shou Zhi
Published: September 2013

A novel photochromic diarylethene 1-{[2-methyl-5-formyl-3-thieny}-2-[2-methyl-5-(2-cyanophenyl)-3-thienyperfluorocyclopentene (1o) has been synthesized for the examination of its properties including photochromism, fluorescence properties and optical recording. The concentration effect in hexane solution was investigated also. The result indicated that the diarylethene 1o changed the color from colorless to royalblue upon irradiation with 297 nm UV light, in which absorption maxima were observed at 592 and 603 nm in hexane and PMMA film, respectively. The colorless open form with fluorescence character could be regenerated by irradiation with visible light. In hexane solution, when the concentration at 2 × 10-5 mol/L the fluorescence peak have the maximum. The cyano group and its substituted position can availably modulate the optical and electrochemical behaviours of these diarylethene derivatives. In addition, polarization optical recording using this diarylethene as recording medium was performed successfully.
Synthesis and Application of Photochromic Materials in Holographic Recording of a Asymmetrical Diarylethene
Authors: Wang Ren Jie , Ren Pan Pan , Cui Shi Qiang , Pu Shou Zhi
Published: September 2013

A novel unsymmetrical diarylethene derivative containing thiophene moieties, in which a methoxy group was substituted at the para-positions of the terminal phenyl ring, was synthesized. Its photochromic properties were investigated in detail, the results indicated that the diarylethene 1o changed the color from colorless to blue, which the absorption maxima were observed at 611 and 627 nm in hexane and PMMA film when irradiation with 297 nm UV light. Additionally, the open-ring isomer of the diarylethene 1o exhibited relatively strong fluorescence at 305 nm in hexane when excited at 322 nm and the fluorescence intensity progressively decreased accompany with the photocyclization occurs. Finally, using this diarylethene as recording medium, polarization optical recording was carried out successfully.
Study on Intelligent Controller of Permanent Magnet Synchronous Motor
Authors: Ji H. , Li Zhi Yong
Published: September 2013

This paper puts forward a novel design method of controller based on BP neural network, which is applied to the permanent magnet synchronous motor (PMSM) double closed loop speed regulation system of speed regulator, by using the neural network controller instead of traditional PID controller. It applies the nonlinear adaptive ability of neural network for optimizing the control parameters of PID controller for PMSM. The simulation model was established in Matlab/Simulink. The simulation results indicate that the neutral network PID controller, compared with the traditional PID, has strong robustness and adaptive ability to the model and environments, indicating the good dynamic and static characteristics and control effects.
Process Experimental Research of Micro-Hole in Electrochemical Micromachining by Nanosecond Pulse Current
Authors: Li Zhi Yong , Liu Hong Li , Duan Zhi Peng
Published: September 2013

Electrochemical micro-machining (ECMM) is a method that utilizes anode dissolution principle to process shaping. In the Electrochemical machining （ECM）of micro-hole, machining precision is an important aspect to measure machining quality of micro-hole. In this paper micro-hole machining is regarded as the research object, effects of many factors such as power supply natures, electrolyte composition, pulse width and pulse frequency on machining accuracy in micro-hole ECM have been evaluated. Research shows that processing accuracy can be improved through using non-linear electrolyte in high frequency, narrow pulse electrochemical machining.
Tribological Properties of Ceramics Tool Materials in Contact with Wood-Based Materials
Authors: Guo X.L. , Cao P.X. , Liu H.N. , Teng Y. , Guo Y. , Wang H.
Published: September 2013

Tribological properties of ceramic cutting tool materials in contact with wood based materials were studied in this paper by examining how Al2O3-ceramics and Si3N4-ceramics behave in dry sliding experiment in contact with wood-based materials and by comparing their behavior with tungsten carbide material at the same time. It had been found that the ceramics exhibited much better tribological properties than tungsten carbide material, and Si3N4-ceramic performed better than Al2O3-ceramics. The Al2O3-ceramics with an addition of ZrO2 had better tribological performance than the common Al2O3-ceramics in contact with wood-based materials. The tungsten carbide had better tribological performance than ceramics in tribological contact with wood flour/PE material. A well-marked difference occurred in various cutting materials/MDF frictional pair, but the differences in various cutting materials/PB frictional pair were insignificant. An increase of the normal force didn’t result in any significant decrease of the friction coefficient. An addition of ZrO2 in the Al2O3-ceramics could inhabit corrosive wear.
Security Issues and Protective Measures of the Internet of Things Architecture
Authors: Sang Yun Chang , Gao Xin
Published: September 2013

With the development of technology and applications of the Internet of Things, Things technology and industry being the attention from the government to enterprises and research institutions at different levels. The guarantee of Things safety is an important prerequisite to promote the healthy development of the Internet of Things. Articles oriented networking current mainstream architecture research from the three levels of perception layer, transport layer and application layer, the security threat of the Internet of Things, and appropriate security measures, provided for the establishment of the security architecture of the Internet of Things theoretical reference.
Research of Building Secure VPN Network Mode Based on Application Layer
Authors: Luo Zhi Yong , Yu Gui Xin , Su Jie , Zhu Wei Cheng
Published: September 2013

On the basis of analyzing VPN network's flaw, designed and implemented a secure and reliable VPN networking model. The model adopts VPN over HTTP protocol and Kerberos to ensure the secure of identification authentication and data transmission. Finally, the paper gives the main algorithm and workflow of the model's Server and Client. Test results demonstrate that, this model has better performance in Maximum number of connection, throughput of system, data encryption, etc. The model suites to the needs of Network Development, has a very good application prospects on secure transmission of the remote.
IT-Based Framework for Food Security Supervision
Authors: Qi Chun Xia , Zhang Li Tao
Published: September 2013

Food security is one of the biggest problems in China. Food security supervision (FSS) is thought to be the necessary means for it. But the FSS is facing new challenges with the coming of information era. According to the FSS chains, some challenges were analyzed. And then, measures based on IT for FSS are proposed. However, the subsequent IT-based FSS framework should be paid more importance because it could server the following two goals: (1) it provides a complete technology system for FSS based on information technologies. (2) The research could arouse more detailed IT-based application researches for FSS.
The Research on Automatic Liquor Blending Systems Based on Wavelet Neural Networks
Authors: Hu Lian Jun , Zeng Xiao Hui , Song Hong , Li Qian
Published: September 2013

The blending of liquors is a key process in the production of liquors. According to time-frequency localization characteristics of the wavelet transform and advantages of the neural network such as ability to develop, fault-tolerance, self-adaptability, self-learning, and robustness, a mathematic model based on wavelet neural networks is proposed in liquor blending processes with the help of computer-aided design technologies, which makes liquor blending technologies more scientific.
A Solution for Anonymous Routers Discovery Based on Source-Routing Traceroute
Authors: Du Jiang , Li Yu
Published: September 2013

Discovery of computer networks topology is always an important basement for network management. As IPv6 becomes the official standard, topology discovery methods should be changed as well. In IPv6 network, Anonymous Routers (AR) is one problem that we must deal with. AR is one kind of router we dont know its interface information, which makes it very difficult to find out their interconnections through common ways. This paper introduces a solution to deal with it, using source-routing traceroute command and nodes degree to merge ARs or find out their relation, and finally get the topology graph.
Study on Improved Flexible Neural Tree Optimization Algorithm
Authors: Wang Yu
Published: September 2013

The BP neural network is easy to fall into local minimum point, the algorithm convergence speed slow, this paper puts forward an improved algorithm of flexible neural tree, introduced the basic theory knowledge of Flexible neural tree , analyzes the characteristics and advantages of the neural tree. The structure optimization and parameter optimization are adopted some optimization algorithm, Introduced the multi expression programming algorithm for optimization of flexible neural tree structure and by using the improved particle swarm algorithm to optimize the parameters of flexible neural tree, Finally the establishment of complete flexible neural tree model.
Research and Practice of Application-Level Maintenance Platform Based on ITIL
Authors: Li Can Quan , Wu Gang
Published: September 2013

There are many studies about application-level maintenance at present, with different levels and depth and business logic. However, there are some common characteristics from two respects: incident management and problem management of ITIL. This paper designs an application-level maintenance platform (AMP) on ITIL, which is a set of practices for IT service management (ITSM).AMP separates common characteristics from non-common characteristics collected, and implements functions of common characteristics. Users only develop functions of non-common characteristics to get a maintenance system for specific application quickly. AMP has been applied in practice successfully.
Study on Meta-Data of Network Information Resources
Authors: Han Ping , Fei Wei
Published: September 2013

This paper analyzes the catalogue characteristics of network information resources, proposes a way of designing meta-data framework of network information resources. Then, a method of grading elements and modifiers based on importance is given. Finally, it introduces the description rules on elements and modifiers.
Anti-Destroying Ability Research on Network of Combat
Authors: Xia Yu , Mao Xu Dong
Published: September 2013

The modern war has entered the era of network warfare, paper through studying the structure of collaborative anti-missile combat system, bulid the collaborative anti-missile network model. Put forward the anti-destroying ability measure indicators of network, analysis network measure changes from random network attack and selective attack. The simulation results indicate that the decision device on the network connection between the anti-destroying ability more sensitive.
Prediction for Greenhouse Melon Disease Based on Optimized Neural Network
Authors: Sun Xiao Hua , Wang Xi Wang , Wang Fu Shun , Zhao Yan
Published: September 2013

in the greenhouse, the the thick skin melon tends to be more easily infected by some diseases. The traditional forecasting model disease convergence speed is slow and limited by the minimum, easily. This study, based on the BP neural network but to optimize it and introduce the genetic algorithm, through the local searching nearby the global optimal solutions, overcomes the local minimum value and convergence speed defects of traditional neural network with genetic algorithms global search ability. The experimental datas simulative analysis by Matlab shows that the thick skin melon's disease predicting error has been reduced significantly after the introduction of genetic optimization algorithm and has obtained an ideal fitting result.
A Novel Network Coding Based Routing Protocol for Throughput Improvement in Wireless Mesh Networks
Authors: Peng Yu Huai , Yu Yin Peng , Wang Fan Zhao , Guo Lei , Deng Qing Xu
Published: September 2013

Considering the high throughput requirement in Wireless Mesh Networks (WMNs), a novel network coding based routing (NCBR) protocol is presented in this paper. The NCBR protocol could actively create potential coding opportunities in the process of path establishment, which attempts to choose an appreciated route with more coding benefits among available path candidates. After this paper gives the proposed coding condition, it describes the working principle of NCBR protocol in detail. Based on NS-2 platform, average end-to-end throughput is measured to evaluate the effectiveness of NCBR by varying the offered load and number of flows. The simulation results demonstrate that the proposed NCBR protocol performs better in enhancing average end-to-end throughput than traditional AODV and AODV+COPE schemes. In particular, average end-to-end throughput could be improved by 11% compared with the AODV+COPE case.
A Reliability Analysis Framework for Domain Software Based on Degree Model
Authors: Wang Wu Cheng , Bao Tie , Han Lu , Liu Shu Fen , Chen Qu
Published: September 2013

For the reliability analysis of domain software researching to present a comprehensive reliability analysis method of domain software based on evidence,and to establish the working framework. To form reliability evidence through analyzing and measuring the evidence that collecting from the software lifecycle, and to build up a evaluation mode to expression the reliability requirements;to define reliability degree and mapping method based on evaluation mode, and to describe software reliability by reliability degree; to analysis modeling the reliability based on formal methods, as well as to verification and validation models. The method combined of informal evaluation and formal analysis modeling has good maneuverability and good practicability. It can describe the reliability of domain software clearly, and provide support for constructing complete formal high reliability software.
Design of the Examination Inspect System Based on the Network
Authors: Ou Qi Zhong , Zhang Qing , Xu Shu Ting
Published: September 2013

For the purpose of maintaining the safety of the national education examination, the examination inspect system is a comprehensive business application system consists of multiple techniques. Basing on the resource requirement analyzes of the examination inspect system, this paper is integrated design with the examination inspect system, including the system model, storage scheme, and management platform, it provides a reference for the design of the standardized examination inspect system.
Design of Ventilating Report of Web Based on Cell Plug-In Technology and its Application
Authors: Li Bai Ping , You Qing Wei
Published: September 2013

This paper presents the design of the ventilation report that is applicable to coal mining enterprises. Making full use of the Cell plug-in, the report applies the design mode of B/S and the custom features of the Cell plugs secondary development technology and characteristics of encapsulated classes in three-tier application architecture to comply the functions that are submitting, opening, printing, exporting and querying etc about the report data.
Research on the Customized Color Mapping Technology of Reservoir 3D Display
Authors: Zhang Yan , Li Chao , Nie Yong Dan , Hou Jun Long , He Wen Jie
Published: September 2013

The technology of color mapping could provide the visual representation of data mapping corresponding of the color range, in the three-dimensional visual scene. In order to analyze the characteristics of three-dimensional reservoir model more efficiently, this article researched the key technology of customized color mapping based on the Open Inventor. The MeshViz and DialogViz extended module of the Open Inventor were used to achieve the interactive legend, so the user could adjust the color mapping range dynamically, and change the data mapping mode by GUI interface. The different geological characteristics were displayed with the customized color, which would lead to a more intuitive understanding of the reservoir model.
Unified Traceability Information System of Logistics Pallet Based on the Internet of Things
Authors: Lin Xing Zhi
Published: September 2013

The paper focuses on the intelligent logistics pallet, networking, traceability information technology and unified logistics information system, and puts forward unified traceability information system of intelligent logistics pallet based on the Internet of things (IOT), displaying innovative system realization method and technical system. IOT intelligent logistic pallet traceability system is an integrated fusion application of RFID, GIS, GPS, computer telecommunication integration together with Internet technology; in system design and implementation, TOT and RFID coupling mechanism, CTI and API interface programming are adopted for construction of three intelligent system service architecture of logistics pallet traceability system including application, business and physics; in the logistics pallet regular operation, reading and writing RFID equipments, labels and telecommunications network, Internet, and other unified information communication mode are fused into the intelligent logistics information system, so as to realize the intelligent logistics pallet identity identification and traceability function. The system test output results indicate that, intelligent logistics pallet unified information system is equipped with intelligent recognition, management and tracing function and business process reengineering capacity including production promotion, distribution, transport logistics and allocation.
Research on Abnormal Data Processing Method in Intelligent Data Adapter Based on Bayesian Network
Authors: Hao Ping , Lu Bin Li
Published: September 2013

This paper put forward a bayesian network junction tree reasoning and rule reasoning hybrid algorithm to solve the adaptation problem in Public Data Center of heterogeneous system, based on the research in intelligent data processing method. Using adapters dynamic data monitoring function, first, pick out all abnormal data. then, apply the hybrid algorithm on the abnormal data. finally, recover the abnormal data and report abnormal processing result. This method has been applied to many domestic universitiess intelligent data exchange system in the Public Data Center. Through practice, this algorithm can effectively improve the reliability and integrity in heterogeneous data exchange system, and obtained good application effect.
Compare of Formal Analysis and Testing for Verification of Safety-Critical Systems: A Case Study
Authors: Zhang Juan , Li Guo Qi , Liu Xiao
Published: September 2013

Safety-critical system attracts more attention in recent years. During the development of safety-critical systems, verification plays the most important role and includes many high cost activities. Testing and formal analysis are two mainstream ways for verification. This paper describes new tools and procedures for testing and formal analysis for verification of safety-critical systems. Compare them in detail in a case study. Conclusion and future works are given finally.
Research on Automatic Construction of Financial Ontology Using Chinese Encyclopedia Resource
Authors: Mo Qian , Zhang Shu
Published: September 2013

Ontology plays a dominant role in a growing number of different fields, such as information retrieval, artificial intelligence, semantic Web and knowledge management, etc. However, manual construction of large ontology is not feasible. This article discusses how to create Financial Ontology automatically from a resource of Chinese Encyclopedia. Financial Ontology includes Is-A relationship, Class-Instance relationship, Attribute-of relationship and Synonym relationship. Experimental Results show us that the constructed Financial Ontology has great advantages in the large scale, creation cost and the richness of semantic information.
Driving System Design of Lifting Permanent Magnet
Authors: Ding Ning , Zhang Ding Tong , Song Yu Mei , Shi Jian , Ding Li Gong
Published: September 2013

Based on our proposed superposition principle of the magnetic field, the drive system of parallel moving type and rotation moving type lifting permanent magnet were designed. Industry prototypes were manufactured, respectively, and they verify that the designed lifting permanent magnets are feasible.
A Development Model of Semantic Web Application
Authors: Huang Ying Hui , Li Guan Yu , Li Xin Long
Published: September 2013

Semantic Web application is the application of semantic Web technology, of which the data containing semantic, thus is able to support the knowledge understanding and the knowledge processing. It can share information and refine information dynamically through the Internet access, which makes more full use of the existing Web resource on the Internet. In this paper, the definitions of semantic Web application as well as the structure and properties are formulated. A semantic Web development model is constructed with reference to the Web application development model.
LSSVM-Based Social Spam Detection Model
Authors: Yang Xiao Lei , Su Yi Dan , Mo Jin Ping
Published: September 2013

To Resolve the garbage tag issue in Folksonomy, Lssvm algorithm for social spam detection model (least Squares support vector machine classifiers) was proposed. The method of inequality change the constraints in the traditional support vector machine into equality constraints, and take the empirical function of the squared error loss function as the Experience function in training set. so that the quadratic programming problem convert QP into solving linear equations, it was improving solution the speed of solution and accuracy of convergence.The experimental results show that we have got higher classification accuracyand less predict time than traditional svm detection methods based on least squares support vector machine algorithm garbage tag detection model.
Design of Vehicle CAN-Network Bit-Level Interference Testing System Based on FPGA
Authors: Cheng An Yu , Zhang Ju Lin , Wang Gang
Published: September 2013

In order to ensure the system behavior of vehicle CAN network and its ECU nodes meet the requirements of high fault tolerance in complex communication conditions. The CAN networks bit-level interference test method in data link layer based on FPGA was studied. Monitored bit stream and embedded interference by behavior level description through Verilog HDL based on FPGA. Simultaneously, host computer configuration interface which is based on Visual C++ was developed. Using the design of this paper interfered the CAN network evidenced the design can implement interference effectively and flexibly to CAN, reliable stability and high fault tolerance of CAN network can be verified.
System Design of the Equipment Support Efficiency Evaluation Simulation System Based on HLA
Authors: Zhao Xiang , Chen Gang , Gao Lu
Published: September 2013

HLA (High Level Architecture) is a distributed simulation framework; it has the advantage of portability, and reusable. This paper introduces HLA in the field of the equipment support efficiency evaluation simulation. It analyzes the basic principles of HLA and federal development process. The operating work and function are analyzed. The paper designed 9 modules for the equipment support efficiency evaluation simulation system base on HLA. The physical structure and logical structure are designed at last.
Study on Systems Modeling of Students Support Service in Distance and Open Education
Authors: Li Qiang , Wang Xiao Ming
Published: September 2013

Students support service as the characteristics and advantages plays a large role increasingly in distance and open education, while the educators from the distance and open education are practicing their work deeply. As a new mode of education, the Open University has to further make the connotation and function of students support service clear and fixed. In order to benefit the construction of students support service system at the Open University, an analysis is made on its structure of students support service from the perspective of system science to reveal the target, reveal formation of driving force for the dropout rate, the structure and model characteristics of the system at such a university in this paper.
The Analysis of Mobile Internet Impacts on Electronic Commerce System Construction
Authors: Zhong Wei
Published: September 2013

This article analyzes the new changes of e-commerces means and business model based on the development of mobile internet. Furthermore, Combined with the influence of the technological progress, such as wireless broadband network, mobile intelligent terminal and cloud computing, this paper puts forward an open system architecture of electronic commerce and its six module systems, and expounds the system design and deployment method in mobile internet environment.
Hierarchy Model of Application Framework
Authors: Yin Sheng Bin , Gao Li Min
Published: September 2013

With the development of component technology, component granularity plays a very import role on the complexity of component composition. How to assemble the component of big granularity? How to make the component in the same domain integrated? Application framework brings the new era of software-reused technology. But how to construct application framework to make it higher reuse? According to the current research of application framework, the paper gives a hierarchy model; The model divides application framework into several layers. Different application framework in different layer has different solutions and the higher the application framework stands in, the lower the probability of change is.
The Effect of AS's Geographic Locations on Internet's Stability
Authors: Sun Jing Hao , Diao Ding , Huang Ling Jin , Meng Ya Kun
Published: September 2013

This paper analyzes how the AS's geographic locations and transmission distances affect on Internet's stability. In contrast to the traditional studies focusing on the future AS network which based on nowadays, this paper emphasizes particularly on the change of AS network's performance under the effect of the economic adjusting or the technology innovation to help make adjusting measures and to lead the technological trend. A double-deck network model of geographic hypergraph and AS network is presented to simulate the geographic locations, which is not reflected in traditional models. The simulate results of our model show that Internets stability ascends with the increase of transmission distances. However, if AS's geographic locations are random, the transmission distances has no obvious effects on Internets stability.
A Method of Autonomous Recoverment for Survivable System
Authors: Sun Tao , Zhao Guo Sheng , Wang Jian , Su Yan , Liu Hai Long
Published: September 2013

A method of autonomous recoverment for survivable system was proposed. Firstly, failure models of survivable system were formally described based on stochastic Petri nets, in which a number of measurable index parameters for recoverment were also given out. And then a recursive autonomous recoverment strategy was presented,Compared with the traditional cyclical recovery strategy, recoverment strategies reduced the time and costs of emergency recovery.
Research on Real-Time Data Processing Based on the Linux Shared Memory
Authors: Zhen Cheng Gang , Zhao Bao Tao
Published: September 2013

In order to improve the efficiency, performance, concurrency of real-time data processing, the paper uses the technology of shared memory, multithreading, double-buffer queue to carry out process of very large-data for real-time by analyzing the structure of Linux shared memory mechanism and traditional real-time data processing system.
Improving Listening Skills of ESL Students through Web-Based Technology
Authors: Zhang Na
Published: September 2013

Web-based technology has been increasingly used in language listening classes. It is consistent with the Constructivism Theories, and it is a big necessity by immersing students in a multi-sensory experience to promote their listening skills and abilities. There are many advantages about the using of web-based technology in the English listening instruction, which can be embodied by creating a multi-dimensional listening environment, stirring up students motivation and emotion, enriching language listening resources, helping students to be effective learners, and facilitating students personalized learning. However, there are still some challenges about the using of web-based technology in English listening classes.
A Unified Approach of Object-Level Saliency Detection in Images and Videos
Authors: Zhang Chi , Wang Wei Qiang
Published: September 2013

Object-level saliency detection is an important branch of visual saliency. In this paper, we propose a novel method which can conduct object-level saliency detection in both images and videos in a unified way. We employ a more effective spatial compactness assumption to measure saliency instead of the popular contrast assumption. In addition, we present a combination framework which integrates multiple saliency maps generated in different feature maps. The proposed algorithm can automatically select saliency maps of high quality according to the quality evaluation score we define. The experimental results demonstrate that the proposed method outperforms all state-of-the-art methods on both of the datasets of still images and video sequences.
Network Design in the Third Party Reverse Logistics of Swill Recycling
Authors: Li Yuan , Wang Huai Yuan
Published: September 2013

Recent years, the failure of swill recycling in mainland China has led to severe problems. The lack of rational network is one of the most important factors. In this passage, a network design in the third party reverse logistics of swill recycling is developed and an example is discussed. The results show that the model is practical and useful.
Design of the Logistics Management System Based on J2EE and MVC
Authors: Wu Hui Ling , Cheng Yuan Hang
Published: September 2013

in this paper, a typical freight business as the demand for logistics management platform prototype platform for logistics management platform designed and constructed is discussed. The logistics industry, according to the characteristics of the wholesale business model design, describes the order of picking the railway transport program characteristics of the optimal solution, combining the best features of the program picking order processing algorithm design. By systematic analysis determine system development program, and the development of logistics management platform, the combination of theory and practice.
Web-Based Design of Inject-Molding Tool and Technical Service System
Authors: Zhou Jin , Xiong Jian Wu , Yi Jie , Jian Zhong Wu , Liang Meng Hai , Li Gang
Published: September 2013

t is a practicable plan that building web-based service system of inject-molding craft and inject-molding tool design technology to push forward computer application in the area. On the basis of analyzing function requirement of this service system, a kind of architecture was built based on application service provider and B/S mode and its construction was expounded. According to current characteristics of each serving technology and user's level, two implementation means were presented, which were automatic service and man-intervening service, and key technology of realization was analyzed in detail.
An Adaptive Cooperative Spectrum Sensing Scheme Based on the k-out-of-N Fusion Rule
Authors: Liu Yang , Cui Ying , Li Ou
Published: September 2013

In cognitive radio networks, cooperative sensing has been identified as an important technique in MAC-layer sensing. Intuitively, the more secondary users (SUs) are involved in sensing, the more sensing accuracy the SUs can achieve, whereas the more reporting delay the SUs consume, the less throughput the SUs can achieve. Thus, an important issue associated with SUs is how to maximize the SUs throughput under the constraint that the Primary Users (PUs) are sufficiently protected. To solve this issue, we develop a new sensing scheme to decrease the consumption of reporting delay and prove the unimodal characteristics of the SUs average throughput as a function of the fusion parameters based on the k-out-of-N fusion rule. Computer simulations show that, based on the developed sensing scheme and the proposed numerical optimization algorithm, significant improvement in the average throughput of SUs is achieved.
Verification for Proving the Route Choice Dependence of Motorists
Authors: Dan Yi , Zhu Shun Ying , Nie Xiao Hu , Chen Yin , Zhang Zi Pei
Published: September 2013

This article studies the existence of motorist path dependence based on the path dependence theory and the motorist's route choice rule. Combining the path dependence theory, experiment was designed and conducted with the Second Wuhan Yangtze River Bridge and Erqi Yangtze River Bridge. It uses SPSS to analysis the survey data by Factorial ANOVA, which to prove motorists route choice has path dependence character. The motorists path dependence theory can be used to guide urban transportation demand management (TDM).
Evaluation of Near-Duplicate Image Retrieval Algorithms for the Identification of Celebrities in Web Images
Authors: Qiao Feng Cai , Zhang Xin , Wang Hui , Cao Jian Ping
Published: September 2013

Near-duplicate image retrieval is a classical research problem in computer vision, for which a large number of diverse approaches have been proposed. Recent studies have revealed that it can be used as an intermediate step to implement search-based celebrity identification given the existence of huge volume of user-tagged or text-surrounded celebrity images on the web. However, the effectiveness of existing near-duplicate image retrieval methods for such a task still remains unclear. To address this issue, this paper presents a comprehensive study of the existing near-duplicate image retrieval methods in a structural way. Four representatives of the existing methods, i.e. hash signature, mean SSIM, BoVW with SIFT features and ARG, are experimentally evaluated using a self-constructed dataset containing 24762 images of 15 top searched celebrities collected using 6 news search engines and the Google image search engine. The experimental results reveal that, compared with global feature based methods, local feature based ones are usually more appropriate for the task of celebrity identification in web images, as they can deal with partial duplicate and scene similar images better. In particular, BoVW with SIFT features is recommended as it provides the best trade-off between on-line speed and retrieval accuracy.