bluuebunny/crossref_metadata_2025 huggingface dataset:
Refractory Ingredients Batching System Design Based on Fuzzy Control
Authors: Zhang Jun , He Xue Jun
Published: September 2013

Take a refractory ingredients monitor system for specific examples, using S7-300 PLC and WinCC configuration software to realize refractory formula control. According to the principle of time optimal and precision optimal, to develop fuzzy control algorithm in production practice so as to improve the automatic control process of refractory batching system.
A Novel Distributed Optical Fiber Sensing System Based on Parallel Computing
Authors: Lu Li Dong , Liang Yun , Li Bing Lin , Guo Jing Hong
Published: September 2013

A new Brillouin optical time domain reflectometry (BOTDR) based on parallel computing method to extract the spontaneous Brillouin scattering spectra is proposed. By use of parallel computing method, the speed of digital signal processing unit in the new BOTDR can be improved by more than 40 times, which benefits dynamic measurement of the temperature and/or strain along the fiber under test.
The Dynamic Modelling and Simulation of Spatial Multibody Systems with Prismatic Joint Based on Vector Bond Graph
Authors: Wang Zhong Shuang , Tao Yang Yang , Liu Shang
Published: September 2013

For the modelling and simulation of complex spatial multibody systems, the vector bond graph method is proposed. By the kinematic constraint condation, spatial prismatic joint can be modeled by vector bond graph. For the algebraic difficulties brought by differential causality in system automatic modeling and simulation, the effective decoupling method is proposed and the differential causalities in system vector bond graph model can be eliminated. In the case of considering EJS, the unified formulae of system state space equations and constraint forces at joints are derived, which are easily derived on a computer and very suitable for spatial multibody systems. As a result, the unified modelling and simulation for complex spatial multibody systems are realized, its validity is illustrated by a practical example.
Microwave Directional Wireless Power Transmission for Wireless Sensor Networks
Authors: Wu Dong Rong , Wu He Jun , Zhu Xiao Lu
Published: September 2013

Power shortage is one of critical issues stalling the development of wireless sensor networks. This paper attempts to address this issue by means of microwave power transmission. In this paper, we propose a sensor node framework using a high-frequency microwave power transmitting module to allow sensor nodes to transmit power to others. We introduce the process of exchanging power between two adjacent sensor nodes and design a power transmission routing protocol called PTR in this paper. PTR optimizes the power transmission of a whole network so that the power of energy sources can efficiently reach any sensor node in the network. We have done simulations and analysis on this framework and the results are positive.
Design of Distributed Pulse Data Acquisition System
Authors: Wu Shu Guang , Chen Jian Xiang
Published: September 2013

The design of the wireless distributive data acquisition system has been presented based on MSP430 embedded microprocessor and nRF24C01 module for the native mobile telemedicine. The focus of portable electronic products is Low Power Consumption and accuracy of data acquisition. Pulse data acquisition has been simulated with Self-adapting Selection operation, and the data provides a reliable gist for the prevention, treatment, diagnosis and therapeutic efficacy of cardiovascular disease.
Predistortion Technology Used for TWTA
Authors: Wang Yong Fei , Zhou Dong Fang , Zhang Yi , Sun Yu , Xu Jing Yuan
Published: September 2013

According to the predistortion technique of travelling wave tube amplifiers (TWTAs), by analyzing TWTA model proposed by Saleh, the gain transmission function curve and phase expansion function curve of the predistortion circuit are deduced. The linear range of TWTA could be enlarged by using predistortion technique, and invariable gain together with zero phase excursions are reached at the working region of the linearized TWTA.
As a kind of microwave and millimeter wave amplifiers, TWTAs find a wide utilization in communication, radar and electronic countermeasure applications. To obtain high output power, TWTAs are usually working at their saturation region where severe nonlinear distortion appears. The nonlinearity manifests gain compression and phase excursion. For digital communications application, the nonlinear distortion increase bit error rate, and this limits system efficiency. For electronic countermeasure applications, the nonlinear distortion limits the output power obtainable at the carrier frequency, and this limits the obtainable efficiency of the system. So insights into measures to improve nonlinearity of TWTAs will benefit wireless communications systems and electronic countermeasure systems. Predistortion technique is one of the best choices [1,2,.
Modeling and Simulation of Voltage Frequency Ratio Control System for Asynchronous Motor
Authors: Rong Jun , Ding Yue Jiao , Chen Xi , Wan Li , Li Yi Ming
Published: September 2013

Alternating current (AC) machine speed regulation system plays a very important role in our industrial and agricultural production. This paper focuses on the three-phase asynchronous motor which account for most of the proportion of the AC machines. Firstly, this paper establishes three mathematical models of asynchronous motor based on dq coordinate system and introduces the principle of V/f speed-adjusting for asynchronous motor, and then the paper builds the simulation models of V/f speed-adjusting control system for asynchronous motor based on Matlab/Simulink. The simulation results of the V/f speed-adjusting control system verifies the correctness of the simulation models and the principle of speed regulation.
The Research and Application of Network Security Technology in the University Network
Authors: Jia Ling
Published: September 2013

The rapid development of computer network technology and information technology, brings greatly facilitate and enrich people's lives for information transfer and fast access, improves work efficiency. At the same time, the network information security is followed. How to ensure the network information is transferred security, which is the problem that various network information systems must face, and also a difficult and hot issue to be researched. In this paper, a variety of effective network security technologies are studied and corresponding implementations are provided for the information network system in the university.
Research on Influence Factors for Loosing Performance of Cotton Loosing Machine for Long Fiber PP Cotton
Authors: Han Yu Yong , Li Zi Guo , Cui Fu Jun
Published: September 2013

In this paper, PP cotton loosing mechanism by cotton loosing machine are in-depth studied, and then influence factors of cotton loosing machines performance to long fiber PP cotton are analyzed to improve performance of the machine.
Study on Properties of Cupriferous and Boracic Iron Based Sintered Composites
Authors: Jiao Ming Hua , Wan Bing Chao , Su Bai Wan , Ma Shao Bo , Yin Yan Guo
Published: September 2013

Pre-configured powders were mixed uniformly through bonding granulation method. The boracic iron based self-lubricating composites with copper of different mass were prepared by the powder metallurgy press-sinter process. The tribological properties under different conditions of load were investigated on HDM20 end-face tribometer. The composite structure, the wear mechanism which copper affect the friction and wear behaviors of boracic iron based composites were analyzed by using X-ray diffraction, EDS and metallographic microscope. The results show that elementary copper which forming alloy phase could strengthen the combination of each phase in composites, playing the role of binder, improve the tribological properties. The synergistic effect between the phases combination, hardness and strength of Cu-20w composite were observably, which lead to the excellent tribological properties synthetically.
Study on Resource Construction and Management of Multimedia Network Teaching
Authors: Zhang Jun Hua , Wang Da Ping , Wang Lin , Guo Xin
Published: September 2013

The rapid development of computer technology, internet technology and multimedia technology has an increasingly profound impact on education. The importance of multimedia network teaching has been fully affirmed, and the quality of network teaching resources is the core, which is directly related to the effectiveness of teaching. Some practicable methods on resource construction and management of multimedia network teaching are proposed in this paper, to standardize teaching resources, realize resource sharing, improve teaching quality and management effectiveness and at the same time meet the needs of digital learning.
Research on a Comprehensive Evaluating Model of E-Commerce Website Design Based on AHP
Authors: Zhu Xiao Na , Wu Feng Ping
Published: September 2013

The development of E-Commerce has become the main tendency, so the importance of website building should also be taken seriously. The paper designs a system of comprehensive evaluating depends on the basic demands of website building, and begins with four aspects, which mainly includes website function, website content, website implement and application, and website promotion. Then this paper establishes the judgment matrixes of A-B and B-C and check their consistency to get the assessment matrix of A-C based on the analytic hierarchy process (AHP), at last we get the total index weight rank which represents the important level of every specific index relative to the final goal. This research mainly aims at promoting the standardization development of website.
Model of Improving Searching Precision For Interactive Users with Searching Requirements
Authors: Chong Tian , Shao Yan Ling , Wang Jian Jun
Published: September 2013

This paper presents a model based on analysis on interactive users search needs. This model changes from the analysis on user's behavior to the one on search content, which reduces to violate users privacy, and enables users to actively participate in determining the needs of search from the client end in the search engine, in addition to establishment of search demand model based on a large number of user feedback data mining in the search engine subsystem, as a result of higher search precision with less client spending and higher user s participation.
A Quasi IBE Identity Authentication Scheme in a Cloud Computing Environment
Authors: Guo Sheng Chang , Liu Yi , Ling Jie
Published: September 2013

This paper draws on the principle of identity-based public key encryption (IBE) system algorithm. A suitable Identity authentication scheme for cloud computing environment is proposed. Security analysis of the scheme is given. The proposed scheme using the bidirectional signature between Client and cloud server has solved the safety verification audit, and realized identity authentication in cloud computing. We provide end-to-end authentication instead of trusted third party, which solve the problem of Key Escrow and improve the efficiency of the management of the identity authentication.
Research and Implementation of Uplink Synchronization in TD-LTE
Authors: Zhang De Ming , Yao Sheng , Li Xiao Wen
Published: September 2013

To make sure a good communication between the terminal and the base station, synchronization is needed between them. The Uplink Time Alignment has been provided in the long term evolution system (TD-LTE), by which uplink synchronization can be maintained in terminals. In this letter, the concrete implementation of the Uplink Time Alignment in MAC sub-layer of terminals and independently adjustment of uplink timing were designed with research of the Uplink Time Alignment and detailed analysis of the specific applications of Timing Advance Command in the terminal. The proposed implementation can be applied for the development of test instrumentation and TD-LTE ratio frequency conformance.
Electrochemical Characteristics of Al-Based Coating on Magnesium Alloy Fabricated by Supersonic Particles Deposition
Authors: Wang Xiao Ming , Zhu Sheng , Chang Qing , Han Guo Feng
Published: September 2013

Al-based coating on ZM5 magnesium alloy was prepared by Supersonic Particles Deposition (SPD). Electrochemical working station was utilized to test polarization curve, corrosion potential and electrochemical impedance spectroscopy etc. The results indicted that corrosion potential of Al-Si coating was about-767.6mV, much higher than that of ZM5 Mg-substrate; And corrosion current density of the coating sample decreased three order of magnitude than that of the uncoated. Compared to Mg-substrate, the radius of capacitive impedance arc of the coating enlarged and impedance modulus improved two order of magnitude.
DTN Routing Mechanism Based on Area Dipartition
Authors: Yang Yun , Han Long Sheng , Yan Ran , Kong Xiu Ping , Xu Wen Chun
Published: September 2013

Delay Tolerant Networks (DTN) has been widely used in challenge networks as an emerging network architecture. Among all studies , routing mechanism is the key problem in DTN. Because of high latency and low data rate, the traditional network routing algorithm can not apply to DTN. This paper proposed a DTN routing mechanism based on area dipartition. The mechanism divided the space into several regions, and calculated the probability of occurrence of each node in each region to determine data transfer path according to the probability. Finally, the simulation results show that the mechanism can significantly enhance the message delivery probability and reduce the packet loss rate.
Security Research Based on the RBAC of Ship Parallel Collaborative Database
Authors: Chi Zhen Hua , Liu Yin Dong
Published: September 2013

Ship parallel collaborative database is the important carrier for the ship designer, Its safety has been a more concerned hot issue among the field of ship design. This paper analyzes the ship parallel collaborative database security needs, proposed RBAC role-based control mechanism.
Production Information System of Automobile Assembly Line Based on PLC Remote I/O
Authors: Zhu Shi Tie , Liu Jia Min , QIN Yong Xu
Published: September 2013

A solution based on PLC remote I/O is put forward for the production information collection and management of the automobile assembly line required. SIEMENS S7-200, S7-300PLC and IPC, LED large screen are integrated into an information system which accomplishes various information display of help application on each station, failure alarm for stopping the line, TAKT in the assembly line, periodical production plan and information display of the current completion and production information. Thus the failure can be immediately cleaned and the production status can be dynamically controlled. Through long-term running the system, it has shown that the system can timely acquire data, display them and store complete information.
Design of College Teacher Workload Management System Based on ASP.NET
Authors: Zhou Dong Sheng , Hu Bo
Published: September 2013

This paper mainly introduces a management information system about college teacher workload based on ASP.NET and ADO.NET technology. The system adopts B/S structure, benefits the using of client. And the system realized the digital and dynamical management, reduces the time of examination and approval, improves the efficiency and veracity of work. The paper analyses the theory of system development, function of system, and design scheme of system.
Big Image Data Management on Portable Equipment
Authors: Liang Ye
Published: September 2013

Big Data is a new label given to a diverse field of data intensive informatics in which the data sets are so large that they become hard to work with effectively. The term has been mainly used in two contexts, firstly as a technological challenge when dealing with data-intensive domains such as geographical information image, high energy physics, astronomy or internet search, and secondly as a sociological problem when data about us is collected and mined by companies such as Facebook, Google, mobile phone companies, retail chains and governments. In this paper we look at this first issue from a new perspective, namely how can the user gain awareness of the personally relevant part big data that is publicly available in the portable equipment. With a lot of traditional applications such as geography information system (GIS) implanted on portable equipment, how to collect, store, process, analyze, and display big image data becomes a hot field. This paper puts forward a display control technique on portable equipment, which is based on measurement of users location. At the same time, we do serials of experiment on Android platform to validate them.
Mobile Big Data Query Based on Double R-Tree and Double Indexing
Authors: Liang Ye
Published: September 2013

The amount of data in our industry and the world is exploding. Data is being collected and stored at unprecedented rates. The challenge is not only to store and manage the vast volume of data, which is also called big data, but also to analyze and query from it. In order to put forward the universal method to response mobile big data query, queries are separated and grouped according to kinds of query for massive mobile objects in the space. The indexing method for grouping the mobile objects with Grid (GG TPR-tree) has great efficiency to manage a massive capacity of mobile objects within a limited area, but it only could meet a part of requirements for mobile big data query if the GG TPR-tree was used solely. This thesis offers solutions to simple immediate query, simple continuous query, active window query, and continuous window query, dynamic condition query and other query requests by employing DTDI index structure. The experiments prove that with the support of DTDI index structure, query of massive mobile objects has higher precision and better query performance.
Research on Centrosymmetric Graph Based on DAM6416P
Authors: Yang Chun Shan , Liu Gui Jun
Published: September 2013

In Order to Explore the Feasibility of Application of Virtual Technical Platform, at the Moment, Mechanical & Electrical Equipment was Used to Rolling Indicator. it is Studied the Control of Graphic Display on DSP Graphics Processing Technology, Combined with the Sensor Signal, Virtual Level Indicating Shall be Putted into Effect. Building the Development Platform as the Core of DAM6416P, Research & Analysis of Line Generating Algorithm and Match Corresponding Colors for Graphics. on this Basis, Apply Bresenham Algorithm to Digital Signal that Tilt Sensor Output, Design Centrosymmetric Graph, Output in Real Time to the Dual Plasma Display, at the same Time, in Order to more Visually Intuitive, Match Different Colors for Output.
Study on Shell Sort of Logistics Unified Information System Based on Internet of Things
Authors: Lin Xing Zhi
Published: September 2013

Through the analyze on the technology, information data processing of logistics unified information system, the optimization Algorithm of Shell Sort in logistics unified information system data processing is proposed. Things-Based Logistics Unified Information System is an integrated system which combine with integration of RFID (Radio Frequency Identification, RFID), infrared sensors, global positioning systems, laser scanners and other telecommunications integrated fusion machine (Computer Telecommunication Integration, CTI) technology. The improved Shell sort algorithm is used in system data processing, so that multiple devices, multi-technology, multi-interface, and distributed widely disorder high-speed logistics systems to available for the heterogeneous applications and fast data processing. It improves multiple-concurrent data processing. Based on JAVA programming of Shell sort, to build and test a system algorithm, which support the system with a high-speed interactive logistics business processing capabilities. The design and implementation feasibility of Shell sort algorithm is proved in Internet of Things-Based Logistics Unified Information System through the output of test results.
Research and Application on Information Resources Planning for University
Authors: Lin Hong , Sun Ya Juan , Wang Bao Hui
Published: September 2013

Information resource planning is a bridge for information technology planning and implementation, which plays a connecting role. This paper discusses the basic principles and methods of information resources planning. Taking University Information Resource Planning as example, this paper introduces the business process analysis, requirements analysis, business modeling and system modeling of the University core business processes, at last proposes the reference model for practical application from practice.
Research and Application on Technical Implementation Architecture in University Informatization Planning
Authors: Lin Hong , Sun Ya Juan , Wang Bao Hui
Published: September 2013

This article conducts the research on university informatization architecture by the idea learning from of enterprise architecture (EA), and discusses the importance of the technical implementation in the university informatization, describes the design methods and process in detail for the technical implementation architecture, for which given the best practices model.
Design and Implementation of SNMP Agent's Extension
Authors: Sun Xiao Yan , Wang He , Li Chun Long , Wang Xiang Qun , Zhang Zeng Hua , Chen Wei
Published: September 2013

This article introduces the protocol of network management, SNMP. Including network management modelthe development of SNMP and the choice of software packet. Using the free open net-snmp software packages, the article discusses the SNMP agents design scheme and the implement process based on Linux. Testing result illustrates that the module is able to monitor equipment remotely and efficiently, and the design method is practicable and instructive in other remote monitoring area with safety requirement.
Management System in Routing and Switching Platforms
Authors: Li Chun Long , Wang Xiang Qun , Zhang Zeng Hua , Wang He , Sun Xiao Yan
Published: September 2013

Routing and switching platforms are widely used in modern communication equipments, network management based on routing and switching platform has a significant meaning and a prospect of application. The article briefly describes the routing and switching platform ZebOS and the Simple Network Management Protocol SNMP, it explains the implementation method and workflow of SNMP network management used in routing and switching platform, and it realizes the configuration and management of routing exchange platform.
Design & Application of Forest Fire Monitoring System by Remote Sensing for Beijing, Tianjin & Hebei
Authors: Zhao Chun Lei , Hou Xia
Published: September 2013

In order to monitor the forest fire effectively and to reduce the loss caused by forest fire in North China areas, a forest fire monitoring system was designed. Based on satellite remote sensing data, GIS data and meteorological information, the system has functions such as processing of data, adjusting of forest fire index for judging hot spots, intelligent judging of hot spots, and analyzing of geographical information and weather condition of hot spots. Also fire information is issued on web and by short message service. The system makes the remote sensing monitoring of forest fire automatically.
A Novel BiCMOS Current-Mode Bandgap Reference
Authors: Hu Rong Bin , Cai Xiang , Zhang Xiao Ying
Published: September 2013

In this paper, a novel BiCMOS current steering bandgap is presented, which includes reference core, start-up circuit, and output circuit, of which the reference core is used to produce the temperature-stable current, the start-up to start up the reference core when powered on, and the output circuit to proportionally transport the reference current to other cells on the same chip. Compared to the traditional voltage-mode bandgap reference, because of the adoption of the current-steering mode, the reference proposed in this paper, has the merits of being immune to variation of the power supply, minimum transport consumption, better matches, temperature stability, smaller area, auto-startup, and so on, which are specially needed in AD/DA application. The simulation shows that the proposed current-mode reference circuit has full temperature range coefficient of 8.9ppm, which is better than that of the traditional voltage-and current-mode reference circuits.
Numerical Simulation and Experimental Study on Light Scattering by Biological Cells with Discrete Dipole Approximation
Authors: Liu Jian Bin , Li Hai , Zeng Ying Xin , Weng Jia Wen , Yang Chu Ping
Published: September 2013

An experimental apparatus for the analysis of biological cells light scattering in liquid suspensions has been presented. Characterization is based on the scattering of a monochromatic laser beam by particles [which can be inorganic, organic, or biological (such as animal cells and bacteria)] and on the strong relation between the light-scattering pattern and the morphology and refractive index of the particles. In order to study light scattering in biological cells close to the actual situation, we focus on non-spherical particles in the cell-culture medium. Finally, we demonstrate the light scattering results of bovine kidney cells suspended in the cell-culture medium, and compares then with the simulated results.
Research of Several PID Algorithms Based on MATLAB
Authors: Zeng Jin , Wang Li Guang , Ye Meng Jun , Hu Chang Hui , Ye Tian Feng
Published: September 2013

This paper introduces several PID control algorithms and their discretization expression. Compare the performance of positional PID algorithm with incremental PID algorithm, integration separate PID algorithm, incomplete differential PID algorithm and PID algorithm with dead zone. The experiment results show that different digital PID control algorithm could achieve different using.
Research of AMU Unit Fault Testability Based on Multi-Signal Modeling and Fuzzy Decision
Authors: Zhou De Xin , Song Ming Yu , Ma Teng Da
Published: September 2013

The Multi-signal Flow Graph (MFG) is a simple and effective system modeling methodology, widely used in testability analysis and fault diagnosis field. In order to shorten the maintenance time and reduce the influence of human factors, the MFG method was introduced, and it was used to set up the testability model of aircraft Audio Management Unit (AMU) and found the fault-testability dependency matrix and the fault-fault dependency matrix. Based on dependency matrix and real unit fault message, the trapezoidal fuzzy number algorithm was introduced, thus the new fault diagnosis method was generated. Finally, an example proves that the fault diagnosis algorithm can not only locate the fault more accurately, but also improve the maintenance efficiency.
Research of Reader Network Access Management in IOT
Authors: Wang Tong Lin , Zhao Hui Qun , Yang Hai Gang
Published: September 2013

For the large number of applications in the real environment of reader of the central control and more practical decentralized control approach to management, analysis and point out their inadequacies, A network structure, which provides a good management and control of the reader and meets the demand of its application in the real world, is proposed and its demonstration system is accomplished. On the basis of central control, the structure can conduct distributed control and complete different operations wanted. Furthermore, it has higher reliability and flexibility , is more easily maintained and more open and has higher coordination.
A Kind of Improved PID Control Algorithm
Authors: Liang Jian Wei , Ren Jin Xia , Cheng Fei
Published: September 2013

This paper proposes a kind of improved variable integral PID control algorithm. Simulation results show that the variable integral PID control algorithm improves the system quality compared with the normal PID algorithm. It overcomes the problems of overshoot and integral saturation in the normal PID algorithm. With the seldom parameters, we are easy to set it.
The Model of Distributed Grid-Connected DC Micro Network Inverters and Double Loop Control Method
Authors: Liu Jian Ye , Tian Chang Ge , Jiang Shan Shan , Ge Zhi Peng
Published: September 2013

In this paper, for parallel operation of the three-phase PWM inverter control system, we put forward and set up the equivalent grid inverter mathematical model. In the process of grid inverter equivalent model is discussed, for the three-phase inverter system is a nonlinear system, in order to facilitate the performance of the system analysis and design of the control system, the transfer function of the system were analyzed to the linearized system. After the linearization control the theory system can be discussed using the method of classical. On the premise of system average model we get the static working point system, according to the law of small signal, we can obtain the small signal mathematical model .At the same time, discusses the three phase inverter design of double loop control system.
Research of New Ultrasonic Domestic Gas Meter
Authors: Zhou Shun , Li Xiao Jing , Xue Su Qing
Published: September 2013

In recent years, with the rapid development of science and technology, the ultrasonic flowmeter has been widely applied. It measures the flow of liquid by using the liquid velocity information of the ultrasonic transmits in the liquid. The advantages of the meter are non-contact, no pressure loss, low cost, simple structure, wide measuring scope. In this paper, by absorbing and referring to the domestic and foreign advanced technology, the author developed an ultrasonic domestic gas meter based on transit-time difference method and MSP430.And it can measure fluid flow accurately. Experiments show that the system is stable and reliable, test data has good repeatability. The system lays a good foundation in developing the high-performance ultrasonic flowmeter in the future.
Multi-Frequency Proportional-Resonant Control for Wave Power Generation System
Authors: Fang Hong Wei , Cheng Jia Jia , Yang Qi Wei , Lian Jing
Published: September 2013

A grid voltage vector oriented proportional resonant (PR) control strategy is applied to the grid current control of the float-type wave power generation system. Compared with the conventional double closed-loop proportional integral (PI) control method, the proposed multi-frequency PR control method can realize zero steady-state error in AC input signal in the stationary frame, without complex coordinate rotation transformation and decoupling control. The overall wave power generation system model is built with Matlab/Simulink to evaluate the performance of the PR control method. Simulation results have shown that the PR control can well improve the robustness and the power quality of the float-type wave energy conversion control system.
Research on Real-Time Fuel Consumption Measurement in Internal-Combustion Engines
Authors: Li Gang , Bai Rui Feng , Hao Ying , Li Yu Chen
Published: September 2013

A new technique was devised to deal with real-time fuel consumption measurement in internal-combustion engines, where fuel circulation flow is much larger than the consumption rate. With extensive experiments and error analysis method, the fuel mass flow measurement had been realized by a improved turbine flow sensor with temperature compensation. The real-time accurate fuel consumption measurement had been achieved through data processing and real flow parameter matching method. The results showed that the prototype measurement precision was 1.0 class, satisfying practical measurement requirements.
Analysis of the Relationship between Main Shock and Aftershocks Based on Association Rules
Authors: Feng Ji Lin , Wang Mao Fa , Zhao Xiao Yan , Bateer Wu , Liu Qing Jie , Zhang Zhen , Yang Si Qi
Published: September 2013

Earthquake prediction is a difficult global scientific problem. As one aspect of the earthquake prediction, seismicity prediction and subsequent earthquake is also a big difficult of science problems. Analysis of the seismic sequence and the study of the main parameters (magnitude, radiation energy, apparent stress, seismic moment) and subsequent aftershocks is an important basis for prediction of seismicity and subsequent strong earthquakes. In this study, the relations between some of main shock parameters and the maximum aftershock are obtained based on association rules.
Steady State Model of Cooling Tower Used in Air Conditioning
Authors: Long Jian You
Published: September 2013

To predict the performance of cooling tower used in air conditionings in variable operating conditions, a steady state model of cooling tower suitable for variable conditions simulation was built and tested. Comparison between the prediction value and the experimental value shows good agreement. The results show that this model is suitable for calculation of cooling capacity of cooling tower used in air conditionings at variable inlet temperature or mass flow rate of condensing water, and at variable inlet wet-bulb temperature or mass flow rate of cooling-air. This model is useful for simplifying performance test, equipment selection and running control.
Analysis of Network Management Technology and Development Trend in the Future
Authors: Yang Li Shen , Wang Qiang
Published: September 2013

This paper introduces the typical network management technology and some hot technology. The trend of network management development in the future is prospected based on the analysis of the current network management technology.
Performance Measurement Technique of Cloud Storage System
Authors: He Qin Lu , Li Zhan Huai , Wang Le Xiao , Wang Hui Feng , Sun Jian
Published: September 2013

Researches on technologies about testing aggregate bandwidth of file systems in cloud storage systems. Through the memory file system, network file system, parallel file system theory analysis, according to the cloud storage system polymerization bandwidth and concept, developed to cloud storage environment file system polymerization bandwidth test software called FSPoly. In this paper, use FSpoly to luster file system testing, find reasonable test methods, and then evaluations latest development in cloud storage system file system performance by using FSPoly.
A 10Gbps Limiting Amplifier for STM-64 Application Driver in 0.18μm CMOS Technology
Authors: Li Wen Yuan , Bi Yu
Published: September 2013

An inductorless circuit for limiting amplifiers is present. With the third-order interleaving active feedback, the bandwidth of this circuit could be enhanced while keeping a suppressed gain. The amplifier is simulation in a 0.18μm CMOS technology. The results show that the circuit consuming a DC power of 90mW with a 1.8V supply voltage, its voltage gain is about 42.6dB, the 3dB bandwidth of the circuit is 10.96GHz.The limiting amplifier circuit can be used in the STM-64 optical fiber communication system.
Autonomous Aerial Refueling Modeling and Dynamic Inversion Adaptive Sliding Mode Control
Authors: Sun Xun , Zhang Xin Guo
Published: September 2013

A dynamic inversion adaptive sliding mode flight control method for autonomous aerial refueling (AAR) is approved in this paper. The drogue model and refueling aircraft 6-DOF nonlinear model is built. In order to improve the flight control precision and performance, the dynamic inversion control method is used to design the flight control law. Fuzzy adaptive control is combined with the sliding mode control is used to compensate the error of inversion, so the robustness and transient characteristic performance could be improved. The simulation results show that the AAR flight control has excellent control performance.
High-Accuracy Modeling of Ship Deformation Based on Inertial Measuring Method
Authors: Yuan Er Kai , Yang Gong Liu
Published: September 2013

High-accuracy modeling is the key problem of ship deformation measurement based on inertial measuring method. This paper is to find a high-accuracy modeling method based on the ship deformation data measured by optical devices. According to different modeling methods, mathematical models are designed by the analysis of the initial measurement data. Wavelet analysis method is introduced in the process of modeling. Attitude matching method is selected as the simulation algorithm and Kalman filter equations are set up based on the algorithm. Simulation results show that the ship deformation can be represented accurately by mathematical models. The Precision Estimation result is better than 0.4''.
Fabric Defect Detection Based on Cross-Entropy
Authors: HAO Bao Ming , Xu Hai Feng , Guo Huan Yin
Published: September 2013

The core of fabric defects detection is the collection and processing of fabrics image. A scheme for fabric defect detection based on cross-entropy is proposed in this paper.The crossentropy value illuminates the information difference between the template image and the realtime image on the average.So can take advantage of cross-entropy criteria to use for defect detection and identification. Results have confirmed the usefulness of this scheme for fabric defect detection.
A Novel Document Services Framework for Multi Process Site Based on SOA
Authors: Wang Rui Ping , Sun Gao Fei
Published: September 2013

In most document management system, all documents are stored in center database server. Actually in daily work, documents uploaded is always need to be stored in the client where the business processes is dealing accordance with the requirements ,but management information system and OA system can not solve this problem. This paper presents a novel framework which integrated the SOA Service of storage to client so called multi process site, to meet the document management requirements that different document processing unit requires document storage is distribution, but the business processes requires centralized.
The Network Security Management Problem of Library
Authors: Zhao Li , Zi Yun
Published: September 2013

The application and development of computer network system bring a great convenience for library management and readers. At the same time, the security of computer network system in library is faced with all kinds of threats. How to guarantee the security of library computer network system has become the most important question for each library. This paper analyzes the factors which affect the library network security, such as network hardware, network operating system and application system, data security and so on, and puts forward corresponding security strategies and solutions.
Study on Explosively Formed Projectiles Test System
Authors: Li Yang Jun , Guo Wei Ping , Wang Gao , Lian Su Jie
Published: September 2013

Explosively Formed Projectile (EFP) is a new branch of the shaped charge technology. It is developed as an anti-solid target technology in recent decades. Velocity of EFP changes quickly with the change of EFP shape. It is very important to research the velocity and morphology change of EFP in their movements to improve its performance. In this paper, theory of the exploding forming effects of EFP is analyzed, the working principle and design process of the EFP test system are introduced, and a particularly detailed description of the structures is given. The way of assembling test system and the process of data processing in the experiment are described. The experiment result shows that this system has a bright application future in the area of the EFP test, and it is worthy to further study.
Research on the Mining Personnel Orientation Method Based on the Zigbee and GIS
Authors: Jia Hui Qin , Wang Sheng Zhe , Zhao Xiao Ping
Published: September 2013

This paper presents a method to locate the personnel in the coal mine. ZigBee wireless transmission mode is used to transfer the person location information to the groud.location hardware system includes three components, first one is ZigBee terminal mobile node, which is installed on the body of miners, the left is ZigBee router and ZigBee coordinator, which can obtain the wireless power in the miners place, combined with the RSSI ranging algorithm, can obtain the miner location. The software is used to store the information about the historical location information and others, display the miner location on the underground using the GIS technology. The field application result shows the miner location accuracy of this system is about 3 meters, which is helpful for miner management and accident processing.
“Big Fire Control” in the Condition of Information War
Authors: Zhang Ke Jun , Xu Wu
Published: September 2013

Due to fast development of information technology, the form of human war is changing from mechanization war to information war. Fire control system should be built from the platform-centric warfare into the network-centric warfare. With the widely use of big fire control, information war in future will greatly improve overall combat ability. This paper introduces the composition and principle of big fire control and its influence on operation efficiency of weapon system. From characteristics of operation war, the status and function of big fire control in future war are analyzed.
Mine Design and Optimization of Lifting Mechanism of Dumping Truck
Authors: Li Rong Hao , Yang Jue , Peng Li Long
Published: September 2013

Lifting mechanism is one of the most important work system. Its design quality directly influences the using performance of mining dump truck. The dissertation takes large dump truck as research object, with the knowledge of the mechanism dynamics for the top rear lifting mechanism of dump truck for innovative design,using the optimization function of MATLAB make the lifting mechanism optimal, to articulated point lifting mechanism the reasonable optimally lay out, and improves the lifting organization performance fundamentally.
A Fire Monitor Terminal for Reliable and Stable Image Acquisition Based on ARM
Authors: Yang Peng Yuan , Du Yu
Published: September 2013

Introduced the Design and Implementation of fire monitor terminal base on the hardware platform of ARM. The image quality is improved with the use of CCD monitoring camera to capture image, and Pan/Tilt/Zoom are used to focus the fire area, enhance the accuracy of fire image recognition. This paper presents the system architecture and its functional characteristics. Emphasis is put on the hardware design of image capture and Pan/Tilt/Zoom control module. Finally, the software structure and implementation is described and the laboratory result is given. Compared with other similar image monitoring system, this system has the advantage of simple structure, high image quality, stable and reliable, feature-rich, etc.
An Optical Flow-Based PIG Method for Active Contour Tracking Initialization
Authors: Wang Jun Ru , Lu Xiao Feng , Wang Yu Chen , Fan Tian Xiang
Published: September 2013

In this paper, we propose a new optical flow-based Poisson inverse gradient (OFPIG) initialization method for active contour tracking. This method can automatically initialize the contour of moving target for consequent tracking. First, an optical flow based motion detection method is adopted to remove background information, and then a Poisson inverse gradient (PIG) initialization is applied to locate the target region. Finally, parametric active contour is used to evolve the correct target contour depending on the initialization precision. Experimental results have demonstrated its effectiveness and robustness.
Investigation of Internal Faults for a Direct-Driven PMSG with Maxwell
Authors: Fang Hong Wei , Fang Si Yuan , Cheng Jia Jia , Lian Jing
Published: September 2013

The electro-magnetic torque and current are analyzed for a static eccentric PMSG. The characteristics of air-gap magnetic field, EMF, current and electro-magnetic torque of the direct driven PMSG for wind power generation are investigated with Maxwell software various eccentric conditions. The related electrical magnetic torque and current variation are achieved, especially the harmonics for current and torque.
Research on Electrified Railway Evaluation and Compensation Method
Authors: Zhang Yuan Yuan , Xu Yong Hai
Published: September 2013

As a particular user of the power system, electric railway has the characteristics of non-linear, asymmetric and volatility. The power quality indicators of electrified railway were analyzed and summarized in this paper. The harmonic content rate reference value of various types of locomotives was given as well as the calculate method using in the power quality assessment, which are suitable for engineering applications. At last, this paper gives several effective measures on improving the power quality.
Infrared Image Contrast Enhancement Based on Modified Particle Swarm Optimization
Authors: Zhao Ren Tao , Wang You Yu , Li Hua De , Tie Jun
Published: September 2013

Adaptive infrared image contrast enhancement is presented based on modified particle swarm optimization (PSO) and incomplete Beta Function. On the basis of traditional PSO, modified PSO integrates into the theory of Multi-Particle Swarm and evolution theory algorithm. By using separate search space optimal solution of multiple particles, the global search ability is improved. And in the iteration procedures, timely adjustment of acceleration coefficients is convenient for PSO to find the global optimal solution in the later iteration. Through infrared image simulation, experimental results show that the modified PSO is better than the standard PSO in computing speed and convergence.
A Secondary Pretreatment Method of Particled Graph
Authors: Li Ming Xin , Li Xiong Fei
Published: September 2013

According to the coordinates of the particled graph, the paper presents a secondary pretreatment method which is invariant to translation, scaling and rotation. Having the advantages of efficient and accurate, the new method is significant to image processing. As the core of the pretreatment, orientation pretreatment is described in detail. In combination with the semi-structured data storage model, the new pretreatment method can help to achieve image content retrieval and data mining of a deeper level.
A New Location Method of ROI for Contactless Palm Vein Recognition
Authors: Wu Wei , Yuan Wei Qi , Song Hui
Published: September 2013

Palm vein pattern recognition is one of the newest biometric techniques researched today.At present, literatures selecte the center of the palm as the ROI of palm vein recognition. However the vein image in this area is not clear in some peoples palm. In this paper, we proposed a new location method of ROI which takes thenar area as the ROI. In the experiment part, it compares the recognition rate between the new and the traditional ROI in self-established contactless palm vein database. The result shows that this new method has got the recognition rate of 98.9258% and has increased recognition rate 2.0911% compared with the traditional one.
A Novel Image Motion Compensation Method for the Pendular Aeronautical Camera
Authors: Li Xiang Zhi
Published: September 2013

This paper puts forward an improved image motion compensation method according to the complex mechanical system and expensive cost problem when the pendular aeronautical camera uses multiple sensors to compensate image motion. This method can only use a linear position sensor to obtain a linear output voltage signal and a sinusoidal output voltage signal, thus a linear position sensor can not only complete image motion compensation function but also complete pendulum sweep range positioning. Finally the experiments has proved that the method this paper has chosen not only simplifies the mechanical system design and reduces the aerial camera cost, but also can meet the accuracy and real-time requirements of various pendular aeronautical camera or space camera.