bluuebunny/crossref_metadata_2025 huggingface dataset:
Design and Realization of Security Network Database
Authors: Geng Wei Jiang
Published: August 2014

This paper analyzes the functional design and structure design of the database security model networks, research and further realizes the key features of the model. The system is suitable for network security database management system, which has a certain universality and portability.
Research on Intrusion Detection Method of Web Service Composition
Authors: Wen Xiao Sen
Published: August 2014

The paper takes Web service composition document as the research object, through the analysis of the documents, the port and address on the Web server, to create a Web intrusion detection model. The core of the model will monitor the Web server host resources, and finally discusses in detail the design and implementation of resource monitoring system. Intrusion detection model proposed can effectively regulate the behavior of users in this paper, allowing users follow a pre-standard service to call service providers, largely to protect the security of Web services.
Study on the NC Machining Theory and Simulation of Hypoid Gear
Authors: Zhu Xiu Rong
Published: August 2014

Based on NC machining principle of hypoid gears and NC machining with high efficiency quality, This paper discusses the feasibility of the hypoid gear processing, establishes the mathematical model of face gear wheel hypoid milling machining adjustment, that will be take the basic data into vertical machining center machine tool, tool, fixture, the installation and adjustment of parameters, and we write a program of the CNC machining and corresponding code, combined with the specific wheel blank parameters to milling simulation test and milling tests, we obtain a new process methods.
Station Models Research Based on IFS Models
Authors: Li Liu , Zhang Guo Fei
Published: August 2014

As a reaserch and development model, IFS is fast and efficient for MIS sysment.At first, we introduced the IFS models (information models, station models and function models) ,and it is proposed that the management information system (MIS) is build base on IFS models data-driven technologies and four tiers soft development technologies. Finally, we described abstract of the station models (user interface) and mechanism about the station models to the user interface.
Testing and Performance Analysis of FCA Algorithm Accelerating IBM Platform MPI
Authors: Zhang Lin Feng , Chen Lei
Published: August 2014

MPI is one of the important standards in high performance computing. MPI performance is generally focused on collective communications. And FCA (Fabric Collective Accelerator) is a new method accelerating collective communications. Through high performance computing environment testing, this paper mainly analyses the result of FCA with shared memory and without share memory accelerating IBM Platform MPI, FCA's principle and integration between IBM Platform MPI and FCA. At the same time, this paper may be a good reference for high performance computing using FCA.
Lifetime Estimation for Web Game Based on Weibull Distribution
Authors: Yu Hai Shu , Yuan Yan Hua
Published: August 2014

In order to make statistic analysis on lifetime data for web game, the two-parameter Weibull distribution was applied to describe its distribution. The shape parameter and the scale parameter were given by maximum likelihood estimation. When a web game followed Weibull distribution, the lifetime parameters are calculated via Matlab. The results show that the proposed model is appropriate to estimate the web game lifetime.
Design and Manufacture of Light String Electric Piano
Authors: Wang Feng Yan , Wang Lin Jing
Published: August 2014

The laser harp is expensive, not suitable for public use, a light string electric piano has designed by using laser tube and SCM. The feasibility of the scheme is verified in a series of experiments, at the same time,the product has a large market in promoting the teaching instrument and toy design with very broad prospects through the market survey.
Temperature and Humidity Controller Based on P89LPC920FDH
Authors: Xi Dong He , Du Juan
Published: August 2014

This paper describes the design of a temperature and humidity controller, the controller takes P89LPC920FDH SCM as the core. P89LPC920FDH micro-controller integrated with internal comparator, watchdog timer, and reset circuit modules. The main control circuit board uses comparator to detect alternating current zero crossing point, uses the timer after a time delay to thyristor trigger pulse to control the hair AC conduction angle, thereby heating power control circuit to control the temperature and humidity of the environment, the purpose of.
Drawing Threaded Programs with AutoCAD Secondary Development
Authors: Chen Yan , Xiong Yi Jun , Zhang Rong
Published: August 2014

AutoCAD is a drawing software is widely used in various industries. AutoLISP language embedded in AutoCAD software is one of many AutoCAD development tools and used very widely in the world. In this paper, AutoLISP will be used to develop a new program for drawing thread. We will draw a variety of internal and external thread and add center sign rapidly and accurately. New source program will be provided and is very meaningful and useful to the user.
Study of Optical Polishing Machine Based on Intelligent Control Technology
Authors: Wang Xing Ju , Wang Xiao Zhi
Published: August 2014

In order to improve control performance of polishing machine, a closed-loop Variable Frequency Speed Regulation (VFSR) System based on fuzzy control technique is designed and single-chip processor NLX230 is adopted as the control unit. Experiment result indicates that this system has the good control performance, high reliability, and producing efficiency is improved, and the product quality is also guaranteed.
Design and Simulation Analysis on Self-Tuning Fuzzy Controller Based on Scaling Factor and Quantitative Factor
Authors: Liang Jie
Published: August 2014

Along with the development of modern science and technology information, fuzzy control theory based on its unique advantage becomes more and more popular with scientists and engineers, therefore it is quickly applied to all walks of life, and is one of the advanced teaching theory introduced in educational industry. Firstly, on the basis of mapping between classical set and fuzzy set, the paper comprehensively analyzes the intelligent fuzzy control theory. Based on the improved fuzzy controller which is self-correcting through scale factor and quantification factor, we establishes the fuzzy control model of moral education. In order to verify the feasibility of the model, we design the fuzzy controller to carry out the applied simulation by using the MATLAB fuzzy logic toolbox, and the results show that the system has fast response, strong adaptability, and good steady-state performance.
Research on Intelligent Power Management System Based on CAN Bus
Authors: Hong Xie
Published: August 2014

This paper analyzes the actual situation of the electricity management about student apartments, and design intelligent energy student housing management system based on CAN bus. The system uses the field level, the underlying management level and upper management level three management systems. Field level with a dedicated energy metering chip AD7755 and STM32F103 microcontroller with A/D conversion function as the core, to achieve real-time power measurement; via CAN bus timing or random read live energy data for monitoring electricity consumption of the apartment, investigate abnormal electricity, thus effectively limiting the students to use electrical power to achieve the modernization and automation of power management solutions student apartments.
Monte Carlo Simulation of Low-Energy Neutron Attenuation Performance in Boron Steel
Authors: Wei Qiang Lin , Liu Yuan Yuan , Wu He Xi , Yang Bo , Liu Yi Bao
Published: August 2014

In this paper, KTA-304 boron steel for low-energy neutron absorption and attenuation is studied by Monte Carlo method, and compared with the traditional SUS304 stainless steel. Taking into account some factors, such as processing conditions, corrosion resistance, hot ductility, etc. we may reasonably come to the conclusion that 1.13% boron concentration in the steel has a better absorption capacity to the low-energy neutron and can effectively reduce the secondary γ-ray effect, meeting the request of radiation protection with reduced material thickness. Besides, low-energy neutron attenuation coefficient was calculated at different boron concentrations of the steel in different energies, providing a reasonable basis for selecting the neutron shielding materials. The γ-rays released in the neutron capture process were considered, too.
Design of Digital Filter Based on Numerical Simulation
Authors: Wei Chuan Ting , Ning Quan Li , Chen Dong
Published: August 2014

In MATLAB software, it has FDATool toolbox, which can design digital filter specific according to specific circuit, and analyze the performance of the filter according to the parameters of filter. In this paper we establish simulation mathematical model of digital filter based on the calculation principle of distributed multiplication accumulator. According to the logic algorithm we design delay algorithm of digital filter, and use MATLAB software to do simulation on amplitude frequency and phase frequency of digital filter. After superposition of different sampling frequency wave we get new waveform, and realize the digital filter for the new wave. It proves the availability of mathematical model and the program, and provides the technical reference for the design of digital filter.
Simulation Analysis on the Delay of Clock Synchronization Algorithm Based on Adaptive Fuzzy Control Technology
Authors: Li Si Ying
Published: August 2014

The knowledge economy is knowledge-based economy, which is a new type of vibrant economic form, and brand marketing is the core of business development. Because our country is being in the economic system in-between period, we need through the development and construction to boost domestic demand, so in the era of knowledge economy, brand building has become particularly important. Through the analysis of the knowledge economy innovation structure, this paper puts forward own brand marketing strategys marketing model, namely combined with the clock information transmission and working mechanism optimization PTP clock node model to construct the rand marketing strategy model. In order to verify the practicability of the model, we have built network simulation structure and made simulation of synchronous networking accuracy test based on FTP data flow. The results show that the model has strong practicability and wide availability. Its idea applied in the research of brand marketing strategy in knowledge economy era has the advantages that are not available in other model.
Planning and Application of Analyzing and Decision Support System
Authors: Geng Jiang Tao
Published: August 2014

In this paper, the planning and application of analyzing and decision support system at China Unicom Zhongshan are introduced. It also introduces the comprehensive DSS, decision support system, which composed of data warehouse and OLAP, data mine, and some important new technologies.
Research on Data Acquisition Technology of Wind Turbine Monitoring System
Authors: Zuo Yun Bo
Published: August 2014

In order to guarantee the safety of wind turbine, online monitoring system of wind turbine was utilized. Data acquisition technology is one of key technologies in monitoring systems. To reduce communication error rate of wind turbine monitoring system, the reliable data acquisition methods were presented in this paper. It utilized TCP protocol and double buffer asynchronous communication method on system server. The cycle buffer and multithread processing method was utilized on the acquisition terminal. The working state data were saved into PostgreSQL database with Npgsql dynamic link library. The data acquisition methods realized high speed, large capacity, and reliable data transmission. They can improve the accuracy and lower the cost of wind turbine monitoring system.
Study on Ball Milling of TiH2 and Application in Energetic Materials
Authors: Xue Bing , Ma Hong Hao , Shen Zhao Wu , Yu Yong , Ren Li Jie
Published: August 2014

Particle distribution of titanium hydride (TiH2) during the ball mill process was studied by milling it with different time. Scanning electron microscope (SEM) pictures showed that particle size decreased quickly at the initial stage, and homogeneous, super fine TiH2 powder was obtained after 4 h mill. Application of TiH2 in energetic materials was investigated by preparation of TiH2/RDX composite explosive and measuring the detonation speed. Results showed that detonation speed of TiH2/RDX explosive was depended on the content and particle size of TiH2. TiH2 is a potential additive in high explosives (HE).
The Design of Automatic Remote Monitoring System for the Temperature and Humidity Based on GPRS
Authors: Zhang Hui , Wang Hong Hua
Published: August 2014

This paper tries to solve is how to design the four products (food, medicine, and health care products, cosmetics, medical devices) and transmission device and control system of temperature and humidity automatic acquisition of remote monitoring system, so as to solve the existing warehouse temperature and humidity monitoring devices commonly used in single type, stability is not high, poor, convenient the open problem of the poor.
Static Characteristic Test of High Temperature Pressure Sensor
Authors: Zhou Fei , Lin Guo Min , Zhang Wen Guang , Shang Miao
Published: August 2014

In this article, the necessity of static characteristic test of high temperature pressure sensor was discussed; the principle static characteristic test of high temperature pressure sensor is illustrated; the static testing of high temperature pressure sensor is completed; the static experimental model of high temperature pressure sensor is established; the main technical indexes was established, it provides an important theoretical basis for the application and test of high temperature pressure sensor.
The Measurement of Concrete Temperature Distribution Based on VB
Authors: Yao Xu Hui
Published: August 2014

Based on the study of the rule and the optimization of the mass concrete temperature development, we developed a set of large volume concrete under various boundary conditions temperature prediction and control simulation software, to lay the foundation for the development of the law of large volume concrete strength, to achieve the optimization ratio of concrete and reasonable selection of the temperature control measures,to control the temperature change of concrete, to ensure the quality of concrete effect!
Development and Application of Aluminium-Lithium Alloy
Authors: Zou Cheng Lu , Geng Gui Hong , Chen Wei Ye
Published: August 2014

The history of aluminium-lithium alloys development has been reviewed in this paper. According to the strength, weld ability and corrosion resistance, thermal stability and plasticity, aluminium-lithium alloy has been categorized and the defects of aluminium-lithium alloys in early stage have been analyzed. As compared the third generation of aluminium-lithium alloy with normal aluminum alloy and composite materials, it indicates aluminium-lithium alloy has better performance, lower cost and reduced weight. After analyzing the advantages and disadvantages of the rapid solidification, ingot casting metallurgy and electromagnetic simulated microgravity methods in synthesis of aluminium-lithium alloy, it has been found microgravity method has prominent effect on reducing the alloy segregation and lithium losses. Finally, the future development of aluminium-lithium alloys has been discussed.
Gear Fault Signal Modeling Study Based on Probability Box Theory
Authors: Liu An , Du Yi , Ding Jia Man
Published: August 2014

Gears typical failure modes and fault diagnosis methods were summarized, and their characteristics and deficiency were contrasted. As almost all method need feature extraction before information fusion, the rich information in original signals were lost in this process. Another difficult problems of information fusion is the the space-time registration. The probability box theory can be a new method to solve the above two problems. The gears fault signal modeling method based on probability box theory were then proposed. Finally the prospects and study directions of this method’s applications in gear box fault diagnosis were proposed.
Synergistic Effects of a Red Phosphorus Master Batch on a Modified Intumescent Flame Retardant ABS Composites
Authors: Dai Pei Bang , Lu Yue Qun , Fan Li Li , He Yu Ru
Published: August 2014

The effects of a red phosphorus master batch (RPMB) on a modified intumescent flame retardant (MIFR) ABS composite system (ABS-MIFR) were investigated in this study. The Underwriter's Laboratory Bulletin 94 (UL-94) flame retardancy rating clearly revealed the synergistic interactions of RPMB and MIFR. Thermogravimetric analysis was used to evaluate the thermal decomposition of these flame retardant composite systems. The results show that adding RPMB increased the char residue formation and the thermal stability of ABS-MIFR at high temperature.
Synergistic Flame Retardant Effect of Fumed Silica and Zinc Borate with Magnesium Hydroxide in ABS Based Flame Retardant Composites
Authors: Liang Gui Lan , Lin Jun , Dai Pei Bang , Lu Yue Qun
Published: August 2014

For achieving sufficient flame retardancy, high magnesim hydroxide (MH) content is needed in MH flame retardant Acrylonitrile-butadiene-styrene copolymer (ABS) composite (ABS/MH), which will cause difficulty in processing and poor mechanical property. We prepared modified flame retardant MH, fumed silica (SiO2) and zinc borate (ZB) via TX-10 phosphate/polyacrylate latex as well as MH flame retardant ABS with the modified flame retardant of 60.0wt% and studied the synergistic flame retardant effect of SiO2 and ZB with MH in ABS/MH. The incorporation of ZB, SiO2 or SiO2/ZB could prolong the time to ignition, reduce the average and peak heat release rate of ABS/MH in cone calorimeter test.
Texture Evolution of Friction-Stir-Welded 5A30 Aluminum Alloy Plate
Authors: Gan Wen Ying , Zhou Zheng , Wang Li Xin , Wu Yong Gang
Published: August 2014

In the present study, the texture of friction-stir-weled 5A30 aluminum alloy was investigated by EBSD technology. Cubic texture {100}<100> is obtained in the shoulder-affected region of NZ due to the complete recrystallization. The dominate texture in the pin-affected region of NZ is the {112}<110> B/ simple shear texture induced by the rotation pin.
A Novel Distribution Parameter Fitting Algorithm of Correlation Noise Model for Distributed Video Coding
Authors: Liang Xiang Yan , Tang Zhen Hua , Luo Ya Dan , Qin Tuan Fa
Published: August 2014

In order to improve the accuracy of correlated noise (CN) model for distributed video coding (DVC), this paper proposes a novel distribution parameter fitting algorithm based on the minimum Euclidean distance. The presented method can obtain the final fitted distribution parameter by using the minimum Euclidean distance to compare the Laplace probability density function (PDF) with the PDF computed utilizing the actual residual frame data. Experiment results show that the proposed distribution parameter fitting algorithm can improve the rate-distortion (R-D) performance of DVC significantly.
A Novel Overlapping Community Detection Algorithm of Weighted Networks
Authors: You Huang Bin , Zhang Xue Wu , Fu Huai Yong , Zhang Zhuo , Li Min , Fan Xin Nan
Published: August 2014

The community structure is a vital property of complex networks. As special networks the weighted networks also have community structure. Nowadays the studies of overlapping community draw attentions of researchers. However, the scale of networks become huge, so it requires the algorithm has lower time complexity and higher classification accuracy. Many existing algorithms cannot meet these two requirements at the same time. So we propose a novel overlapping community detection algorithm. Firstly we apply maximum degree node and its some special adjacent nodes as the initial community, and then expand the initial community by adding eligible nodes to it, finally other communities can be found by repeating these two steps. Experiments results show that our algorithm can detect overlapping community structure from weighted networks successfully, and also reveal that our method has higher division accuracy and lower time complexity than many previously proposed methods.
Analysis of Black Level Calibration Algorithm for CIS
Authors: Yao Hong Tao , Wang Zi Qiang , Gu Yuan Bao , Jiang Zhen Gang
Published: August 2014

This paper presents the structure and the operational principle of CMOS image sensors. And then the reason is illuminated for producing dark current and black level of CMOS image sensors. It is necessary to calibrate dark current and black level to improve quality of CMOS image sensors. The dark current is corrected by optimizing pixel structure, perfecting technology, improving 6layout, and correction double sample. But these ways do not calibrate black level. So, it is important to calibrate black level using black level calibration algorithm in the stage of image processing.
Application of C Sharp and MATLAB Mixed Programming Based on .Net Assembly in Blind Source Separation
Authors: Liang Xu , Wang Ke Ming , Xin Gui Yu
Published: August 2014

Comparing with other High-level programming languages, C Sharp (C#) is more efficient in software development. While MATLAB language provides a series of powerful functions of numerical calculation that facilitate adoption of algorithms, which are widely applied in blind source separation (BSS). Combining the advantages of the two languages, this paper presents an implementation of mixed programming and the development of a simplified blind signal processing system. Application results show the system developed by mixed programming is successful.
The Development of Double Composite Flexible Radar Absorbing Fabrics Based on Iron Fibers
Authors: Li Qian , Wei Sai Nan , Yao Ji Ming
Published: August 2014

Double composite flexible absorbing fabrics were fabricated according to the resistance matching principle and electromagnetic spreading regulation. The surface layer, composed of stainless steel core-spun yarn, easily realized matching to the free space. The under layer made up of iron fiber which had significant microwave absorbing effects. The reflectivity of fabrics were measured by the means of "arch testing method" in the range from 2~18 GHz with the change of fabric specifications. The results showed that the reflectivities of 12 groups can below-15 dB in the 20 groups testing and the second group which below-20dB was thin and only 440g/m2with the optimized fabric specifications.
Face Recognition Image Processing Design Research
Authors: Zhang Bo
Published: August 2014

the system is mainly composed of image processing, face positioning, feature extraction and recognition of four parts, and image processing for the back of the work is good or bad plays an important role, for each module in image processing module design in order to achieve the desired effect.
New Data Processing Method Research on GLONASS
Authors: Liu Zhao Jun
Published: August 2014

Because GLONASS and GPS are different in system, data processing of GLONASS carrier phase difference is quite different from that of GPS, requiring special methods. Based on eliminating the impact of the relative deviation of receiver clock, a new mathematical model of GLONASS phase difference is introduced in this article. This new model can make full use of existing GPS data processing technology to complete GLONASS data processing work conveniently.
Prediction of Road Congestion Level Based on Bayes Algorithm
Authors: Xiao Shou Bai
Published: August 2014

Traffic jams increasingly threaten the normal city traffic, so our paper analyzes the state of the existing road traffic congestion, road traffic congestion found in the state is a relatively vague and random dynamic data model. Based on these two characteristics, we propose a road traffic congestion degree assessment model based on Bayesian algorithm. Based on the theoretical analysis of Bayesian algorithms to improve the processing efficiency of the algorithm to construct the road traffic congestion degree evaluation model based on Bayesian algorithm set, and the simulation experiments.
Research and Simulation of LCMV Algorithm in GNSS Anti-Interference
Authors: Bai Zhen Lin , Chen Jian Wei , Yang Mei
Published: August 2014

Owing to the satellite signal strengths of GNSS is so low that it is interfered with powerful signal, that how to effectively resist interference is becoming a problem.In this paper,first LCMV algorithm based on the power-inversion adaptive array is deduced from theory in certain mathematical model ,what’s more ,for avoiding computing the inverse of matrix, LCMV algorithm is improved and then is verified through the Matlab-simulation .Last,the hardware design is given for the realization of this algorithm.
Research of LXI Discovery Method
Authors: Li Ming
Published: August 2014

Discovery mechanism help users quickly identify instruments and acquire their information. LXI specification requires instrument has two discovery methods: one based on VXI-11 protocol and the other based on mDNS protocol, describes the principle of these discovery methods and analyzes their respective advantages and disadvantages. The verify the function requirement of discovery methods, and the result indicates that both of them meet the expected requirement.
Research on Vague Set of Target Threat Information Fusion Algorithm
Authors: Xu Ke Hu , Chen Jin Yu , Kong De Peng , Fan Pu
Published: August 2014

Information fusion technology is one of the most active research areas currently, which is affected by the fact that the computer can only handle quantitative information and the result cannot reflect the actual feature of the target sometimes. This paper makes use of advantages of the vague set in dealing with uncertain information process to establish the target threat sequencing model based on vague set and take both quantitative and qualitative information of target into account. Using the improved scoring function, this paper comes up with the target threat sequence steps based on extreme score function method to provide a better data supporting for the decision-making function of information fusion technology.
Research on XML Documents and Relational Database Mapping Based on XML Schema
Authors: Zhou Xia
Published: August 2014

In order to implement the mapping between XML documents and relational database, this paper proposes the mapping method based on XML documents and relational database. On the basis of keeping documents ’hierarchy, order and uniqueness, this method can mapping XML documents to the corresponding relational database very quickly and implement the reconstruction of XML documents.
Smart Meter Based on Smart Energy Profile for ZigBee and Power Line Communication Connectivity-Enabled Home Area Network
Authors: Yao Peng , Liu Gang , Liu Yan
Published: August 2014

Home Area Networks can be implemented via both wired and wireless solutions. Smart meter performs power or electricity metering and has the capability of transferring key meter data via wired and wireless sensors. The proposed solution provides a seamless connectivity between ZigBee and Power Line Communication networks to reap benefits from their respective advantages. Since these two technologies are complementary media, the combination is more suitable for smart meter to meet different requirements.
Text Clustering Algorithm of Co-Occurrence Word Based on Association-Rule Mining
Authors: Jin Chun Xia , Zhang Hui , Bai Qiu Chan
Published: August 2014

According to the analysis of text feature, the document with co-occurrence words expresses very stronger and more accurately topic information. So this paper puts forward a text clustering algorithm of word co-occurrence based on association-rule mining. The method uses the association-rule mining to extract those word co-occurrences of expressing the topic information in the document. According to the co-occurrence words to build the modeling and co-occurrence word similarity measure, then this paper uses the hierarchical clustering algorithm based on word co-occurrence to realize text clustering. Experimental results show the method proposed in this paper improves the efficiency and accuracy of text clustering compared with other algorithms.
The Analysis of Steganographic by Sub-Pixel Calibration
Authors: Chen Qian , Hong Jing Xin , Ou Gang , Chen Xu , Wang Ling , Zhang Yi Xiong
Published: August 2014

In order to achieve high accuracy, we present a new calibration technique aimed at blind steganalysis. The calibration can be considered as a preprocessing of stego image before extracting the features. The extracted features will be more effective for our classification [1] Moreover, the calibrated feature was used to train SVM (Support Vector Machine)[2], a nonlinear classifier, which is effective in class separation. For comparison, we conducted extensive experiments and drawn a conclusion that the steganalytic scheme based on our novel calibration can detect the stego information with high accuracy. Experimental results demonstrate that our proposed scheme outperforms the best effective JPEG steganalysis having been presented.
The Combination Views of Privacy-Protection in the Mobile Database
Authors: Liu Xiao Na , Wang Wan Jun , Zhao Shuang Zhu , Lin Guo Liang
Published: August 2014

With the development of mobile technologies, more and more data and program running in the mobile environment, due to the instability of the mobile environment, safety and low, which makes the user's sensitive information can easily be leaked. The paper for the study of mobile database privacy issues, considering the special circumstances in the mobile computing mobile database its operational characteristics, presented a view of the combination model based on data services. Meanwhile, the management of multiple database view created by combining research, aimed at reducing the data while ensuring secure access to private data, the user permissions are combined as the final privacy threshold defined to ensure that the combined view of the plurality of conceal privacy related data items out.
The Differences Analysis of Input-Output Efficiency of Regional R&D Activities Based on DEA
Authors: Liu Yu Han , Lv Yong Bo , Ren Yuan
Published: August 2014

Research and development activities plays an important role in regional science and technology development and technological innovation. Regional R&D input-output efficiency is a measure of the effectiveness of regional investment in science and technology activities. This paper selects four indicators to make evaluation of the input-output efficiency of R&D activities and analysis of differences between regions by using data envelopment analysis (DEA method).
The Analysis of Temperature Field of Concrete Beam of Hydration Heat
Authors: Yao Xu Hui
Published: August 2014

This paper attempts to use the I-deas software to analysis the reinforced concrete box girder temperature field in early stage, focusing on the analysises under the action process of water thermal and reinforced concrete box girder variation law of temperature field under time histories.
Uncertainty Evaluation of Duration of Aircraft DC Transient Signal Based on Least Square Method
Authors: Ouyang Pu Zhong , Zhang Zhong Hua , Sun Jing Yu
Published: August 2014

By using the waveform measurements and the least square method, the duration of transient level, and the duration of transient decreasing segment of aircraft DC transient signal are evaluated precisely. The evaluation courses and some technical problems are discussed in detail, the uncertainty analysis both of the durations are presented. Some test results have proved the effectiveness and practicability of the method. It could be applied to the characteristic and performance evaluation of aircraft DC transient signal waveform generators.
A Discriminative Method for Pedestrians Detection on Real-Time Video
Authors: Chen Xue Yuan , Lv Xia Fu , Liu Jie
Published: August 2014

The objective of this paper is to build a system for pedestrian detection in an outdoor environment. The contribution of this paper is the detection method that integrates the silhouette edge information with patterns of motion in each frame of the image sequence. The test results show that the high-precision, good adaptability, and real-time performance of the proposed method.
Effect of Fumed Silica and Zinc Borate on the Thermogravimetric Analysis Curves of ABS/Magnesium Hydroxide Composite
Authors: Li Zhang Ting , Lu Yue Qun , Fan Li Li , Dai Pei Bang , Su Xia , Hu Xiao Yan
Published: August 2014

For achieving sufficient flame retardancy, high magnesim hydroxide (MH) content is needed in MH flame retardant Acrylonitrile-butadiene-styrene copolymer (ABS) composites (ABS/MH), which will cause a great decrease in mechanical property and difficulty in preparing samples for measurement. We prepared ABS/MH filled high 60.0% flame retardant by compounding ABS and modified flame retardant MH, fumed silica (SiO2) and zinc borate (ZB) via TX-10 phosphate/polyacrylate latex and studied the effect of a small amount of SiO2 and ZB with MH in ABS for improving the thermal decomposition of ABS/MH. The thermal stability of the modified flame retardant could meet the processing temperature of ABS. The incorporation of ZB, SiO2 or SiO2/ZB could improve the thermal stability of ABS/MH.
iMRAproiri: A Parallel Aproiri Algorithm Based on Twister
Authors: Huang Liang , Liu Zhi Jing
Published: August 2014

MapReduce is a current parallel computing model. Introduced MapReduce into Aproiri can make the algorithm more effective. But Apriori need to traverse the database several times to produce the final frequent itemsets accompanied with vast I/O consumption. Therefore, we put forward an algorithm named iMRAproiri by using Twister, an iterative MapReduce model, to reduce the I/O consumption. In iMRAproiri, the map function performs the procedure of counting potential candidates and the reduce function performs the procedure of summing the occurrences counts, while Twister handles the intermediate data in the distributed memory of the worker nodes. These features enable iMRAproiri to significantly reduce the amount of the time that I/O operation takes and increase the efficiency of Apriori algorithm accordingly.
Research on Industrial Control Network Webstation Design
Authors: Xu Wen Jin
Published: August 2014

With the rapid development of industrial automation and increasing levels of Internet, remote access for industrial field is more and more to show its importance. However, how to develop a security in the existing network resources, reliable remote sites for industrial scene have many problems to be solved. In this paper, the example of the use of an industrial site is built for an Internet-based remote control network, the overall framework is highlighted, and the databases and websites are discussed in detail. So the conclusion of how to build complex industrial website is drawn.
Analysis the Machined Surface Quality during the Drilling of Steel X04Cr16Ni12MnTiN
Authors: Jurko Jozef , Panda Anton , Pandová Iveta
Published: August 2014

This paper presents the conclusions the machined surface quality for steel X04Cr16Ni12MnTiN. Based on the cutting tests, cutting speeds of 50 to 90 m/min, feed rate of 0.02 to 0.8 mm and screw drill carbide monolite. The results of the article are conclusions for working theory and practice for drilling of steel X04Cr16Ni12MnTiN.
Research and Improvement about LEACH Algorithm for Wireless Sensor Networks
Authors: Liu Tao , Jia Sui Min
Published: August 2014

In Wireless Sensor Network (WSN), unreasonable node clustering algorithm will inevitably lead to premature death, unawareness of regional information.To address problems of traditional LEACH algorithm, An improved LEACH multi-hop routing algorithm based on Energy Distance Threshold (EDT) is presented. It mainly improves from aspects of cluster number, cluster head selection and inter-cluster communication. The improved clustering hierarchy algorithm considers the nodes Energy Distance Threshold as an important factor in selection then chooses the best cluster head within the area. The selection of cluster head is based on re-select manner, which dynamically and effectively select cluster heads by control cluster number and combing with EDT. After cluster head completes local data fusion and processing, it look for adjacent cluster head as next hop closer to base station with larger EDT if the head is far away from station. The next hop repeats above process till the base station is arrived. Such manner of multi-hop among clusters enables communication among clusters and base stations so as to avoid direct communication between head and station. The method reduces energy consumption and also balances energy. Simulation results show the improved LEACH algorithm has higher energy utilizing rate, and it helps prolong network’s lifetime.
The Influence of Particle Diameter on Analytical Results
Authors: Xie Feng , Tan Hong , Li Zhan Bin , Yang Hong Bo , Sun Hai Da , Li Rong Hua
Published: August 2014

In analytical chemistry, particle diameter is very important during the sample preparation. A model is presented describing the effects of particle diameter on the content of analyte determines the size of the particle; and the particle size determines the weight of samples and relative standard deviation in the results. This new methodology for the optimisation of physical sample preparation is applied for the first time. Based on this relationship, we can find an extensive application in analytical chemistry.
Study on Flood-Fill Algorithm Used in Micromouse Solving Maze
Authors: Zhang Hao Ming , Peh Lian Soon , Wang Ying Hai
Published: August 2014

Micromouse is a small autonomous electronic-mechanical robot, which is able to navigate through an unknown maze from the start to the destination. The main challenge for micromouse is to work out the maze after searching, find the optimum path for the shortest fast-run time and control the robot to win. Flood-fill algorithm is used in this project to develop a solver which is able to help the robot for finding the ‘best’ route from the starting position to the ‘goal’, maze solving result shows the correctness.
A Study on CPFR Inventory Management Technology
Authors: Zhang Pei , Yuan A Qian
Published: August 2014

CPFR is a collaborative supply chain inventory management technique, it is very important for supply chain partners to improve cooperative relationship, reduce inventory, improve the forecasting accuracy and supply chain efficiency. This paper identifies what CPFR is, explains the CPFR process, cites benefits that have been achieved, identifies obstacles to implementation, and discusses the necessary measures for CPFR to running succesfully.
Design of Prognostics and Health Management System for Turbofan Engine
Authors: Song Han Qiang , Li Ben Wei , Sun Tao , Wang Yong Hua
Published: August 2014

The prognostics and health management system of next generation turbofan aero-engine is researched for better adapting military mission needs. The system canonical structure is designed on the basis of GE company open structure. Additionally, the gas path PHM architecture is especially analyzed, and the key technologies in the system are introduced. It gets the technology ways for the realization of the system development. And the work can provide support for the development of the PHM system from the top course structure view.
Fuzzy Comprehensive Evaluation on Human Resource Management Risk Warning Model
Authors: Dai Yi Lan
Published: August 2014

Risk becomes an increasingly concerned factor in contemporary competitive market. Based on the literature review on the theories of human resources management (HRM) risk and the reasons why they exist, this paper constructs the model of HRM risk, and then conducted an empirical research to analyze the HRM risk in a local software company using fuzzy comprehensive evaluation. It finally provides us some practical precautions on the HRM risk. It could be mentioned that this topic has certain practical significance since that the fuzzy comprehensive evaluation simplifies the identification process, reduces the influence of subjective factors, and enhances the scientific and rational factors.
Research on Purchase Intention Models of Seamless Underwear Consumers
Authors: Wang Jian Ping , He Hui , Chen Jing
Published: August 2014

nvestigation on 298 seamless underwear consumers using consumer styles inventory (CSI) was carried out to measure the purchase intention of seamless underwear consumers. Eight factor models reflecting seamless underwear consumers shopping decision style, including perfectionist and hi-quality, price and value, novelty and fashion, confusion for over choice, recreational and hedonistic, habitual and brand–loyalty, impulsive and careless, brand-conscious, were proposed on the base of exploratory factor analysis and confirmatory factor analysis. Cluster analysis was employed to divide seamless underwear consumers into four categories, namely fashion-brand type, perfectionism type, value-orientation type, trendy-enjoyment type. This research established a foundation for seamless underwear enterprise in formulating brand marketing strategy efficiently.
Economic Analysis on Space Truss Structure under Different Specific Conditions
Authors: Li Hui , Zhou Meng Qi
Published: August 2014

With the development of national economy, space structures of great spans develop quickly. The architectural modelings update, structural systems diversify and structural spans gradually expand. So the study on space truss structure under different specific conditions has great significance upon the security, the proper use and reducing cost.
Modeling the Influence of Design Modification on Product Development Projects Based on Structure Methods
Authors: Yang Qing , Liu Zhi Lin
Published: August 2014

This paper proposes a structure method integrating Design Structure Matrix (DSM) and Quality Function Development (QFD) to analyze the impact of design modification on Product Development (PD) Projects. Firstly, we build a QFD to represent the relationship between functional requirements and design parameters for quantifying the influence of function modification on design parameters, product and process. And a model of measuring dependency strengths in the function DSM is presented. Secondly, the model deducing a derived DSM matrix from a known DSM is built based on Multi-Domain Matrix (MDM). Finally, the derived process DSM is conducted sequence optimization.
Cavitation Effect to the Hydraulic Piston Pump Flow Pulsation
Authors: Zhang Huan
Published: August 2014

The flow pulsation is one of the main factors, which affect the performance of water hydraulic piston pump, and cavitation also has importance effect on flow pulsation. In this paper, CFD technology is used to simulate visually the porting process，which causes the flow pulsation in water hydraulic axial piston pump. As a result, the flow pulsation rates and other parameters on fluid-field corresponding to different rotary speed and different loading are obtained respectively when cavitation is considered and not, which can present theoretic references for the development of water hydraulic pump.
Design and Analysis of a Novel Micro Flying Head in Mass Storage System
Authors: Li Yu He , Guan Kai Sen , Zhao Da Peng , Qiu Yong Rong , Li Qing Xiang
Published: August 2014

In order to meet the mass storage system’s need for higher density and integration, a novel structural design for micro flying head is conceived and an air bearing surface is designed based on micro fluid theory of hydrodynamics. Both positive and negative pressures can be generated by the air bearing surface, with the stiffness and motion stability enhanced by negative pressure. A lubrication model has been investigated with 1.5 order slip model of the generalized Reynolds equation, and the finite volume method is used for the simulation of the flying characteristics. The theoretical analysis and experimental results show that the proposed micro flying head exhibits satisfying flying stability, with head-disk spacing less than 75nm, and carrying capacity exceeding 93mN.
Design and Simulation of a Descent Control Device Based on Hydraulic Damping
Authors: Wang Lei , Wang Yue Feng
Published: August 2014

High-rise building escape is now a more and more important problem. A DCD used for that was designed in this paper. By reverse using the principle of the piston-cylinder of engine, this device can translate the gravitational potential energy into hydraulic damping, so the descent speed of people could be decreased. This device mainly consists of the drive system and the speed control system, and the pulley was used for combining these two parts. A slider crank chain and a centrifugal speed regulating mechanism were designed to accomplish the control of speed. The software of Pro/E was used for simulating each component of this device in the end.
Development of Hole-Based Self-Centering Marking Gauge
Authors: Song Zhi Dong
Published: August 2014

In order to rapidly determine the centering point to make marks basing on the center of a cylindrical hole, we developed a hole-based self-centering marking gauge for rapid centering and marking, which may be used for the purpose of marking of different dimensions basing one the center of a round hole and to mark arc, bisectrix, angle line, featuring rapidity, accuracy, convenience and efficiency.
Machine Gun Finite Element Model Amending Based on Frequency Response Functions of Vibration
Authors: Wang Ben Li , Dong Zi Wei
Published: August 2014

Correction machine gun finite element model to predict dynamic characteristics is very important. Through theoretical calculations and experimental test structure to obtain guns frequency response function, given the sensitivity of both the correlation function and expression, introduced a model correction method, and laid the theoretical foundation for a certain type of machine gun finite element model updating. Build a certain type of machine guns and modal testing and analysis system was carried out to test the vibration frequency response function. Boundary condition parameters of the machine gun was amended, and modal test results were compared to prove the validity of the model correction method.
Modular Design Technology of Multi-DOF Mechanical Arm
Authors: Qiang Huan , Zhang Hu , Zhou Yan
Published: August 2014

A design method of modular joint is proposed according to the complicated structure, line exposed and heavier characteristics of multi-DOF (degree of freedom) mechanical arm. In this paper, the design of modular joint was carried on and a model of six-DOF mechanical arm was built through the research on the structure of mechanical arm. On this basis, dynamics simulation will be carried. The results show that the modular design method simplified the structure of the mechanical arm, the dynamics simulation proved it was feasible for the structure design and drive selection.
Numerical Investigation of Tip Clearance Flow in an Axial Compressor Cascade
Authors: Xu Zhi Hui , Lv He Bin , Zhao Ru Bin
Published: August 2014

Using blade tip winglet to control the tip leakage flow has been concerned in the field of turbomachinery. Computational simulation was conducted to investigate the phenomenological features of tip clearance flow. The simulation results show that suction-side winglet can reduce leakage flow intensity. The tip winglet can also decrease tip leakage mass flow and weaken tip leakage flow mixing with the mainstream and therefore reduce the total pressure loss at the blade tip.