bluuebunny/crossref_metadata_2025 huggingface dataset:
Design Research on the Resident Electronic Health Recorder Systerm
Authors: Liu Ning
Published: September 2014

Resident health record is not only to reflect health condition of people but also precious medical information, which offers great help to medical institutions and medical staff. The use of resident electronic health record system will be used more widely, even a necessity of people’s life. The core technology in developing this system was analyzed in this paper. In this system, the requirements of residents, doctors and managers were introduced in detail through the illustration and activity graphs. In the end, function modules of the common resident electronic health record were listed. These design schemes will provide references for relative researches.
The Web Development Technology Research of Cross Platform Mobile Application
Authors: Sun Song , Cao San Xing
Published: September 2014

In the current network applications, mobile Internet product development becomes more and more popular, in order to meet the application development of simple, low cost and cross platform adaptation needs, based on the HTML5 technology, jQuery Mobile and PhoneGap development framework, a cross platform development framework based application development model, the mobile Web application implementation of interactive experience comparable to the native applications.
The Universal Middleware Architecture Based on the Web of Things
Authors: Zhang Rui , Zhang Peng
Published: September 2014

As the existing WoT to use more closed tightly coupled architecture design principles, the system presents the shaft features that like the information silos. And the system infrastructure and service capacity is difficult to share and reuse. This architecture is suitable for large-scale industrial applications that their demands are clear. Third-party resources are difficult to be integrated into the system. All of the above are difficult to make large-scale application of WoT. This article polymerized common technologies of middleware. Thus it improved the ability of each heterogeneous device in the network, reduced the cost of application development, and improved the development efficiency.
Research on Statistics Based Multi-Priority MAC Protocol for Ad Hoc Networks
Authors: Wang Peng , Li Hai , Ye Ben Li , Chen Chen , Wang Yu Bao
Published: September 2014

With the growing application diversification in Ad Hoc networks, it is particularly important to support prioritization of traffic and ensure that critical data can be delivered more reliably and faster in an emergency scene. We mainly study on the improvement of statistics based multi-priority medium access control (MAC) protocol, including the channel occupancy statistic and the backoff mechanism. We conduct comprehensive simulations based on the OPNET Modeler and account for the success rate results with theoretical analysis. The simulation results show that the proposed algorithm can simultaneously guarantee high success rate and low delay for high-priority packets.
LEACH-EO: A More Energy-Efficient LEACH Protocol for WSN
Authors: Zhang Jing , Yan Han , Cui Yi , Rong Hui , Wang Jian Ping
Published: September 2014

The sensor nodes in WSN are generally limited in energy, and the communication between nodes consumes most power. Therefore, it is the key point to reduce energy consumption and network traffic when designing routing protocols for WSN. The Low Energy Adaptive Clustering Hierarchy (LEACH) protocol is a widely used and studied WSN routing protocol. In this paper, an improved LEACH based on energy-consumption optimization (LEACH-EO) was proposed against the deficiencies of LEACH. LEACH-EO implemented some improvements on the cluster-head selection of LEACH, meanwhile, the data redundancy of WSN was exploited to optimize the data transmission according to the characteristics of WSN. The simulation results show that LEACH-EO increases network lifetime and reduces energy consumption in comparison to LEACH.
Authorization Management System of Micro Video Based on FFmpeg
Authors: Guo Qian , Xu Yun Geng , Cao San Xing
Published: September 2014

With the development of computer network technology and new media technology, network video business continued to expand the coverage. Micro video is used as an important form of network video and its content is more extensive, more diverse characteristics have gradually become the mainstream of network video service. According to the current micro video network transmission characteristics and processing technology, this paper research and design the micro video authorization management system applied to micro video service platform. Through the authorization operations of micro video, realize the copyright protection function of the micro video.
Reverse Engineering OWL 2 Ontologies to UML Models
Authors: Li Wei Jun
Published: September 2014

The OWL 2 Web Ontology Language is an ontology language for the Semantic Web with formally defined meaning and widely used in knowledge representation. The Unified Modeling Language (UML) can be applied for many of software, knowledge engineering and data modeling. For the sake of reusing the OWL 2 ontologies, we propose a reverse engineering approach of constructing UML models from OWL 2 ontologies. In this paper, we propose formalized definitions of OWL 2 ontologies and UML models, and then propose an approach of formally mapping OWL 2 ontologies to UML models.
Research on Development of Books Interview Platform
Authors: Zhang Hong Min , Li Na
Published: September 2014

According to the current status of the book acquisition work, this paper developed a platform interview of books based on J2EE technology and WEB application. It can realize upload, download and consolidation of book data for the personnel to make selection according to the individual needs and professional characteristics, truly realizing the democracy selection and centralized decision.
The Development on Information Collection System Based Internet of Things
Authors: Luo Chuan Wen , Yin Xiao Wei , Ni Chun Di
Published: September 2014

Internet of things technology in recent years the rapid development in various fields, the systems based on the perception layer of information collection, through wired or wireless network, information transfer, finally through a variety of application platform for unified handling, control, and implementation content and content, objects and people, and all the goods and the connection of the network. This article is to the quantitative information sets the starting point, through the wireless self-organized network for data transmission, and use the embedded system to unified management of information collection module, finally achieved all the functions of Internet information collection system.
Agricultural Products Traceability System Design Based on IOT
Authors: Qian Xin , Wang Dong , Luo Wu Ming
Published: September 2014

The design and implementation of agricultural products traceability system based on IOT improve the credibility in the circulation process of pork and vegetables, standardize enterprise production management, and enable consumers to obtain the right to know. Web technology, bar code technology, data collecting middleware technology is used for the construction of database server platform and SOA-oriented software information system. Traceability code and data standard protocol of non-contact IC card are developed to improve the urban network topology and establish a complete coverage of all aspects of the circulation, such as electronic transaction settlement, quality testing and supervision, real-time data collection and products sources tracing.
Design and Implementation of the Hospital Information Management System Based on the ASP.NET
Authors: Li Ming , Yang Shu Yuan
Published: September 2014

The existing hospital information management system generally does not support remote access and the information sharing is low. In order to adapt to the needs of the development of medical information management, the hospital information management system should be developed based on B/S structure. The system should store staff basic information, outpatient and hospitalization reimbursement detail in the database; can timely reflect the patient fee in arrears; draw graphical statistics of the use of funds, the incidence of disease, drug usage information; can set reimbursement policy according to the conditions and can automatically submit an expense account settlement, fund collection, decomposition of annual and carry forward; show the real-time dynamic tracking information for ins and outs of supplies, equipment, and drugs, reduce the backlog and shortages.AFS.NET technology.
Professional Software Analysis and Comparison for Graphic Design
Authors: Wang Ruo Hong
Published: September 2014

Contacting with the development of the society, the world is increasingly close, the Internet has become an inseparable part of modern society, and the new century must rely on the powerful computer information technology to better development. The continuous renewal of network, the rapid development of computer technology, computer graphic design industries widely used. Application in the field of generalized naturally shows the importance of computer graphic design, further shows the importance of studying graphic design knowledge. Present and future society requires high-quality high-cultural level of computer graphic design talent, so graphic designers must be skilled to master the operation and application of computer design software and technical skills.
Study and Practice Based on Network Technology
Authors: Zhao Wei Hong , Xu Dao Ping , Gong Hui Ying , Li Ying
Published: September 2014

It is referred that English learning ability can be improved by network technology which has been developed to a quite high level system. The kind of learning method which is using the computer and Internet technology is completely different from the classroom teaching due to the information transmission technology. In line with the new requirements of the network teaching of modern educational idea, this paper reveals the new technology widely used by the network in the teaching process, and puts forward some technical forms to carry out teaching on the Internet.
Available Storage Space Sensitive Replica Placement Strategy of HDFS
Authors: Zhao Wen Tao , Ding Yang , Zhang Xiao Hong
Published: September 2014

When HDFS runs for a period of time, the default HDFS replica placement strategy does not consider heterogeneous nodes and randomly selectes datanodes, so available storage space of each datanode are differenced from several G to tens of G range, HDFS may have some available storage space smaller datanode. If HDFS continues to write replica in these available storage space smaller datanodes,it may cause the failure of replica placement; These nodes run MapReduce tasks, MapReduce task may fail due to smaller storage space available. Therefore, this paper proposes an Available storage space sensitive replica placement strategy of HDFS,this strategy uses available storage space and current number of connections of per datanode to compute evaluation value, then chooses the biggest evaluation value datanode as the best datanode to place replica. The experimental results show that the strategy achieves placing replica in accordance with available storage space of datanode, effectively avoiding the available storage space smaller datanode, reducing the probability of writing replica failed because the available storage space is too small, shorten the file upload time.
Automatic Feedback Control System of Detection and Treatment of Infantile Jaundice
Authors: Huo Yan Ming , Zuo Xiao Ying , Tong Li Na , Cui Zhi Min
Published: September 2014

With the progress of photovoltaic technology and sensor, this paper propose a new automatic feedback control system which based on the color sensor TCS230 and LED flexible lighting equipment to detect and treat infantile jaundice. By testing the severity of the yellowing baby skin, the system makes any response, such as the lights’ intensity and working time. And the final aim is to realize the detection and treatment synchronously for infantile jaundice, promoting the development of intelligent medical treatment.
SERP: A Simple Energy-Hops-Based Routing Protocol in WSNs
Authors: Li Ming Xi , Zhou Xian Cun , Fan Xi Hui , Wang Sheng
Published: September 2014

When we design a routing protocol for WSNs, it is necessary to found an energy control mechanism to reduce the overhead of wireless communications. Considered that WSN systems need a simple routing protocol in practical applications, we designed a simple Energy-hops-based routing protocol (SERP) in this paper which can be used in most WSN systems with low communication overhead and complexity. We analyzed the performance of the SERP, furthermore we run it in a real WSN experimental system consist by GAINS3 sensor nodes. The experiment result confirmed that the SERP is highly effective by which the WSN system energy can be balance while the working lifetime can be increased.
Research on ASIC Firewall Based on State Detection Technology
Authors: Wang Shun Qing , Chen Hai Yan
Published: September 2014

Being important in the field of network security, it is essential to study the firewall technology that has been an indispensable part of computer networks. This paper describes a new design and implementation of ASIC firewall architecture based on the state detection technology. Implementation and measurements in a real network show that the proposed system can provide high performance with reliability, flexibility, and security.
Research on the Detection Method of the Malicious Attacks on Campus Network
Authors: Wang Jing Lei
Published: September 2014

The problem of malicious attacks detection on campus network is studied to improve the accuracy of detection. When detecting malicious attacks on campus network, a conventional manner is usually conducted in malicious attack detection of campus network. If a malicious signature is mutated into a new feature, the conventional detection method cannot recognize the new malicious signature, resulting in a relative low detection accuracy rate of malicious attacks. To avoid these problems, in this paper, the malicious attacks detection method for campus network based on support vector machine algorithm is proposed. The plane of support vector machine classification is constructed, to complete the malicious attacks detection of campus network. Experiments show that this approach can improve the accuracy rate of the malicious attack detection, and achieve satisfactory results.
Properties of Hydraulic Floating Caliper Brake for AGV Car
Authors: Li Ai Ran , Fan Yu Jin , Han Teng , Li Zhe Kun , Zhao Pei Lin , Wang Jun Jie
Published: September 2014

Existing AGV car’s brakes are electromagnet brakes. Brake overheating causes brake damaged during work time.In this paper ,the hydraulic pressure floating caliper brake is applied to the AGV car . It with electromagnetic brake AGV car for braking performance comparison test, through comparative analysis know that hydraulic floating caliper brakes can not only meet the AGV car’s braking requirements and the system dynamic performance has improved greatly.
Comparison Analysis of RESTful and SOAP-WSDL Applied in the Image Management System
Authors: He Ren Yu
Published: September 2014

Nowadays, web is applied more and more extensively and the integration of application system between enterprises has become an important aspect of Web applications. The current mainstream middleware technologies such as CORBA, DCOM, etc. cannot be used for communication between heterogeneous systems. As new platform-independent communication protocols, RESTful and SOAP-WSDL can implement heterogeneous systems to exchange information. In this paper, RESTful and SOAP-WSDL are analyzed, and the associated techniques in the design of image management system are discussed and compared.
Research on Multilevel Secure Database Inference Channel
Authors: Zhao Hai Yan , Meng Jin , Zhang Xiao
Published: September 2014

In multi-level security database system, the inference problem is that a low security level user using accessible data and his own knowledge and to infer confidential information of higher security level, which constitute an attack on the database. This paper introduces a formal description of multi-level secure database systems inference channels and analyzes several common inference channels and its solution.
Storage Model Based on Oracle InterMedia for Surveillance Video
Authors: Sun Bei , Luo Wu Sheng , Du Lie Bo , Lu Qin
Published: September 2014

A video management way based on Oracle interMedia is proposed, to make up the shortages of single classify and low search efficiency based on files in traditional video surveillance system. The solution is designed on structural description model for video, proposed a classify way which described the video from attribute, character, main frame summary and video data. Adopt interMedia to create table in Oracle, achieve classify storage for video and description. At last, design the test software in VC. Experimental results show that the video can storage in Oracle well, compared with the traditional file storage way, it has a better classify storage and search efficiency.
A Noise-Optimal Integrator for High-Precision SC Sigma Delta Modulators
Authors: Wang Xiao Lei , Zhang Yong Wei
Published: September 2014

Based on N-well Chartered 0.35-um CMOS technology, we designed an integrator for a low-power and high-precision sigma-delta modulator, which has a structure of third-order CIFF, one bit quantization. Amplifier designed in this paper use the PMOS folded cascade differential structure. All switches of the switch capacitance integrator are CMOS switch. The structure-improved integrator can be used to preliminarily filter the noise power of the input signal, and reduce the noise into the modulator, combined with bottom plate sampling technology and the right timing sequence. Input sinusoidal signal has frequency of 65.625Hz and amplitude of 0.6V. It’s simulated in cadence spectre with sampling frequency of 76.8kHz and power supply voltage of 3.3V. FFT analysis of the integrator output shows that the noise floor is-94.3dB, which meets the performance requirements of the system.
Movement Trajectory Tracking Method of Mechanical Arm
Authors: Li Yu Liang
Published: September 2014

mechanical arm is an essential replaced tool in the operations under heavy, dangerous and harsh environment (such as nuclear radiation, toxic and hazardous, etc.), but also a key technical equipment in the development of the country. Mechanical arm motion system is a very complex time-varying, strong coupling, highly nonlinear system. This paper presents a model of the robot visual tracking. Through the computer vision track the mechanical arm motion process to make the mechanical arm movement to become more intelligent, more environmentally friendly. Experiments show that the method can complete the mechanical arm intelligent trajectory tracking, and the tracking effect is better. 1 Introduction
Application of Function Point Estimating
Authors: Zhou Chang Hong
Published: September 2014

Function point estimating is an important method for system of effort estimation. This article is based on a telecommunication surveillance module system-integrated monitoring module as example. It explains how this estimation method is applied in the project measurement process in detail.Function Point AnalysisFunction point analysis evaluates the functionality of a software system from the software end users perspective. Software functionality comes down to five basic functional elements[1], two of which represent end user demand for data: internal logical files (ILF) and external interface files (EIF). The other three are data gathering and processing features: external inputs (EI), external outputs (EO), external inquiries (EQ)[2].To determine the complexity of each functional element, the following data items are defined: record element type (RET), file type referenced, (FTR), data e1ement type (DET)[3]. To determine all functionalities complexity level, each data and transactional capabilities is assigned with low, average and high level based on standard matrix, see table 1 complexity matrix[4]. After determining the complexity of each feature, using the complexity value defined in table 2[5] multiply by the corresponding function point counts, accumulate to get the totals.Table 1: complexity matrixTable 2: IFPUG unadjusted function point basis
Design and Research of Computer System High Confidence Fault Tolerant
Authors: Qi Jin Quan
Published: September 2014

For high security and reliability of system critical areas, this paper designed a high-confidence fault-tolerant computer system, which combined high credibility technology with high organic reliability integration. High trusted computing technology used TCM structure to build a trusted password support system and achieve the platform integrity, identity authentication and data security. Redundant fault-tolerant technology to ensure the system, which activated in case of an error, is still able to provide uninterrupted service. Simulation results show the effectiveness and implementation of the technical solution approaches.
Research and Practice of Cloud Computing Based on Hadoop
Authors: Lu An Sheng , Cai Jian Jiang , Jin Wei , Wang Lu
Published: September 2014

Hadoop is a distributed parallel processing of massive data computing platform. It is currently the most widely used cloud computing platform. This paper analyses and studies the Hadoop distributed file system HDFS and the calculation model of MapReduce on Hadoop platform and the cloud computing model that is based on Hadoop, the paper introduces the process of building cloud computing platform, Hadoop, operating environment, and proposing the implementation.
Overhead Analysis of Loop Parallelization with OpenMP Directives
Authors: Xiang Li Yun , Fang Zhi Yi , Wang Ying , Qu Guan Nan , Chen Zhong
Published: September 2014

OpenMP is one of the most popular parallel programming technique nowadays. Using openMP, programmers parallelized their serial programs by inserting directives. However, in addition to parallel algorithm related overhead which depends on how to design the parallel program, performing openMP also leads to overhead. In this paper, we give a model to evaluate the overhead, and design 5 groups of experiment to evaluate the overhead caused by starting openMP, scheduling and synchronizations. We also analyze the changes of the overhead with different scale of the problems and the number of parallel threads.
Research on Multilayer Security Audit Research Based on Attack Graph in Cloud Computing
Authors: Wen Lin Bin
Published: September 2014

Cloud computing, the future development direction of the IT industry, has the profound influence of cloud computing applications, which is bound to the field of higher education, the construction of university network education resources platform is the integration of all kinds of educational resources of colleges and universities, and to provide fast and convenient resource storage, sharing, learning and computational ability. This article is from the university network education platform of cloud computing based on the advantages of the proposed strategy, construction of information resources of University under the cloud computing environment. This is how the cloud model construction resources platform of network education in Colleges and universities. With the rapid development of Internet, people from all walks of life to and gradually mature "cloud computing" model of combining the road to seek an opportunity. However, in the field of education, the application of cloud computing is scanty. Research on the current college network education situation and abuse with according to the characteristics of cloud computing, advantages, and puts forward the conception of network education platform based on cloud computing, and further demonstrates its feasibility. It is the high time to improve the transplantation and service application pattern of cloud computing in the field of education.
The Application of LED Lighting in Museum Exhibition Hall
Authors: Zheng Ying , Huang Li Wei , Wang Mi Mi , Chen Hui Qin , Zhang Li Zhen
Published: September 2014

This paper analyzed the important of lighting in museum from three main aspects, environmental lighting. LED lighting can not only meet requirements of museum lighting, and also has advantage of protecting historical relics and intelligent energy saving. The dimming control of accent lighting is achieved by infrared detection, distance detection of visitor and exhibits. Intelligent lighting and bionic controlling improve the intelligent level of exhibition, protect historical relics effectively, reflect the topic of energy saving and environmental protection.
A High Reliable Communication Method for the Terminal of a Networked and Distributed Power Supply System
Authors: Lu E. , Huang Bei , Li Shuang Shuang , Yang Yan
Published: September 2014

This paper relates to a high reliable communication method for the terminal of a networked and distributed power supply system. Terminal refers to the realization of two-way communication between high voltage source of distributed power supply and laden multiple electrical appliances. Due to the characteristics of long distance, complex electromagnetic environment and small amount of communication information between the voltage source and the electrical appliance, this paper designs a new kind of high reliable communication method along with high-voltage transmission, narrow-banded and single-ended synchronous [1,2,8]. Under the condition of satisfying the communication capacity and reliability, this method has been successfully applied to the city network and LED street lamp management system with the advantage of simple circuit design and inexpensive manufacturing cost.
A New Method of Cross-Correlation by Magnetic Dipole for Estimating Magnetization Direction under the Influence of Remanent Magnetization
Authors: Shi Lei , Guo Liang Hui , Guo Feng Yi
Published: September 2014

Processing and interpretation of magnetic data usually require information of total magnetization direction. However, under the effects of remanent magnetization, total magnetization direction is different from induced magnetization direction, which makes data processing and interpretation complexity. In this paper, we present a new method by cross-correlation of magnetic dipole source for determination of magnetization direction from relatively isolated and approximate equiaxial-shape magnetic total field anomaly. This method calculates cross-correlation coefficient between observed magnetic total field anomaly and theoretical magnetic total field anomaly caused by a magnetic dipole source, by using a set of varying parameters of positions and total magnetization direction of dipole source for trial and error. The corresponding magnetization direction of maximum correlation coefficient is regarded as estimated total magnetization direction. Test on synthetic data indicates that this method reliably and effectively estimates the magnetization direction from relatively isolated and approximate equiaxial-shape magnetic total field anomaly.
The Condition Assessment of Distribution Transformer Based on Improved Analytic Hierarchy Process
Authors: Meng Xiang Ping , Li Lin , Wang Hui , Ji Xiu
Published: September 2014

It is very vital for the distribution transformer in the distribution system, crucially ensuring its reliable operation is, therefore, timely and accurately grasping the state of the transformer is very meaningful for guiding the condition maintenance of transformer and improving the operation reliability of distribution system. It is very difficult for AHP to inspect and adjust the consistency of judgment matrix, and its inspection standard lacks of scientific basis, so we put forward a fuzzy comprehensive evaluation method which uses five-demarcation method to establish the fuzzy complementary matrix on the condition assessment of distribution transformer. Through an example analysis, which proposed method is proved to be rationality and validity.
Effects of Different Sample Resistances on the Insulator Leakage Current Acquisition Results
Authors: Miao Peng Chao , Xu Zhi Niu
Published: September 2014

The sampling resistor method is commonly used in the laboratory to measure the insulator leakage current. To study the effects of different resistance on the leakage current acquisition results, a series of experiments are systematically conducted in laboratory. Leakage current waveforms of a clean porcelain insulator under 9 kV and 27 kV power frequency voltages are acquired respectively through the oscilloscope with sampling resistance of 5 Ω, 10 Ω, 100 Ω, 1 kΩ and 17 kΩ. The results reveal that: rated voltage been applied, weak discharge exits on the surface of the porcelain insulator which leads to the appearance of the pulse in the leakage current waveforms and a larger sampling resistance weakens the pulse signal. When the voltage is 9 kV, the measurement result under 5 Ω sampling resistance is 49.4 times amplitude of the result under 17 kΩ sampling resistance and when the voltage turns to 27 kV, the ratio increased to 131.5.
High Rate Data Transmission System Based on OFDM for Well Logging
Authors: Gu Qing Shui , Chen Wei , Wu Rui Qing
Published: September 2014

Designed a high rate data transmission system based on OFDM for well logging. The system used time domain equalization and frequency domain equalization. The transmission data rate of the system can reach 1.2Mbps over 7440 meters CAMESA cable, and its BER is less than .
Research and Application of a Solution to Acquire Electric Energy Data
Authors: Long Shou Yang , Lu Xin , He Ye Shen
Published: September 2014

The electric energy data acquire system with full coverage of power user is the important component of the deployment of strong & smart grid. The low-voltage power line communication has become a mainstream technology in the construction of electric energy data acquire system in China. Micro-power wireless is a short-range, low-power, low complexity, low-cost wireless communication technology, which has the characteristics of large capacity, short delay and high stability. However, a single communication mode is hard to meet the requirement of full coverage of electric power user because the structure of distribution network is complicated. This paper proposes an integrated solution based on the PLC and micro-power wireless communication for electric energy data acquire network system, which achieved good results in the field, validate the feasibility of the solution.
Risk Assessment of Power Transformer Life Cycle Cost Based on Extensible Matter-Element Model
Authors: Qiao Guo Hua , Guo Xiang Jun , Wu Lan Min , Liu Hong Liang , Ren Zheng , Bai Na
Published: September 2014

Making assessment of risk factors of power transformer life cycle cost modeling is an important mean of improving the scientificity of transformer life cycle cost management. Considering the risk factors of transformer life cycle cost, this paper presents risk assessment index system of transformer life cycle cost, applying matter-element model and extension analysis theory to quantify the qualitative indexes in order to assess the risk. Combined with an example, the paper quantifies the uncertain factors of power transformer life cycle cost management in order to build the life cycle cost risk assessment system. It realizes the risk rating of the transformer cost assessment, getting the key risk factors which affect transformer cost so that we can put forward targeted control strategies according to various risk factors in practical engineering.
A Novel Broadband Vibration Energy Harvester
Authors: Liu Yu , He Xiao Yan , Liu Shen , Wu Ying , Ou Yi
Published: September 2014

A single resonance frequency is the main factor of limiting vibration energy collector efficiency. In this paper, the multi degree of freedom oscillation adjusting bandwidth scheme is reported, designing a kind of new broadband vibration energy harvester, which has multi-mode energy acquisition, multi freedom vibration and broadband characteristics. Firstly, Broadband energy collector structure design. Secondly, Combining with the main vibration form, using the ANSYS carried out a detailed analysis of its working model. Finally, designing the prototype and doing some experimental verification, the results show that the designed energy collector with low frequency and wideband energy acquisition performance, the frequency domain of energy collection is 57.6 to 69.45HZ ,which break through the bottleneck of traditional single resonance frequency of energy acquisition, has a high value of theory and engineering application.
Equivalent Circuit of a Planar Transformer Used for TWTA
Authors: Zhao Bin , Wang Gang
Published: September 2014

In this paper, application of planar transformers in TWTA (Travelling-wave Tube Amplifier) is investigated and a method of equivalent circuit is used to study performance of planar transformers. The lumped parameters of planar transformers are extracted by FEM (Finite Element Method).
A Reconfigurable Radix-r FFT Hardware Structure Design
Authors: Zhang Yu Xuan , Zhao He Ping , Yu Ji Yang
Published: September 2014

A reconfigurable radix-r FFT structure design is proposed, to reduce the memory and time consumption caused by zero-paddling in traditional radix-2/4 methods. The radix-r FFT computing flow is divided into three iterative steps: rotate factors computation; memory access schedule; butterfly coefficients matrix multiplication. The hardware structure is depicted, in which the memory accessing schedule is implemented by a finite state machine, the rotate factors and butterfly coefficients are calculated by the Taylor series expansion. The time consumption of the proposed structure is analyzed, and with the arbitrary data points, an optimized radix can be used to minimize the computing time. Compared with traditional methods, the proposed design has the advantage of generality, less time consumption and hardware costs.
A TDC Based BIST Scheme for Operational Amplifier
Authors: Yuan Jun , Wang Wei
Published: September 2014

This paper presents a time-to-digital converter (TDC) based built-in self-test (BIST) scheme for operational amplifier (Op Amp). The propagation delay exiting in the transient response of the Op Amp is monitored by the inverter based TDC, and converted into a digital code based on the referenced delay interval of the inverter used in the TDC, as a result, the digital code is finally employed to determine the test rsults. The circuit-level simualtion results of the proposed BIST syetem for a two-stage Op Amp are presented to demonstrated the feasility of the proposed BIST scheme with high fault coverage.
Ballistic Effect and Application in Circuit Design of Wide Band-Gap Semiconductor
Authors: Liang Xin Xiang , Cheng Zhi Qun , Jia Min Shi
Published: September 2014

With manufacturing technology innovation and progress of electronic devices of semiconductors, dimensions of electronic devices get smaller nowadays. There has been processing of 90nm and 20nm in production. With in-depth research, scientists are more and more interested in molecular devices. Since the size of molecular devices is small, electrons transfer by ballistic transport. In semiconductor devices, when the transport distance is at micrometer or smaller sizes, the ballistic transport phenomena of electrons and holes of carriers occur. This transfer form is not affected by lattice defects, doping, and interaction of crystal interfaces. Since there is no interference of these interactions, carrier’s velocity can be faster several times than common electronic devices, resulting in the doubled operating speed of these devices. Although it is difficult to achieve pure ballistic transport, when the size of semiconductor devices is close to the mean free path of carriers, the speed of carriers will still be greatly improved.
Research on Application of all Time Apparent Resistivity Translation Algorithm for Large Fixed Loop TEM
Authors: Li Fei Long , Zhu Xi’an
Published: September 2014

In order to calculate the all-time apparent resistivity for large fixed loop more quickly, the transient electromagnetic field analytic expression for lager fixed loop in homogeneous half space is analyzed in this paper. The facts that the curve has a characteristic of translational expansion and contraction with the conductivity, the test point coordinates and observation time are discovered. A new method using translation algorithm to calculate all-time apparent resistivity is proposed for the large fixed loop. A new calculation equation of all-time apparent resistivity for large fixed loop is derived which shows that the method is feasible and effective.
A Novel Behavior Fusion Method for Intelligent Vehicle Routing Planning
Authors: Jin Hua , Ning Tao , Yin Bo
Published: September 2014

In order to improve the convergence of VRP, a novel method is proposed on the basis of behavior fusion and quantum particle swarm optimization (QPSO).The external information which has been obtained through multi-sensor is divided into several sub-phase particle swarm according to the character of optimal variable. It can be seen from the experimental result that the novel QPSO can enhance the security of obstacle avoidance and improve the convergence reliability and convergence speed in the high-dimensional search space. Finally, the proposed method is compared with the existing algorithms and the results verified its effectiveness.
Danger Classes Detection System Design of High Voltage Transmission Conductor Galloping
Authors: Wang Ya Fei , Liu Liang Liang
Published: September 2014

Conductor galloping is a kind of phenomenon which is harmful to electric power equipment. If conductor galloping is found and risk assessment is made timely, it can greatly reduce the possibility of line short, open circuit. Currently, it is mainly rely on the way of manual inspection, in which there exists the monitoring blind area. In this paper, an intelligent danger classes detection system design method of conductor galloping based on S3C2410 and CC2530 meter data collecting and processing module. It is mainly responsible for the collection of abnormal accelerated speed information and abnormal recognition of power conductor, and the data through the Zigbee network are transmitted to the control center. The principal computer constituted by software is responsible for the information management, danger classes division of conductor galloping, and giving an alarm. The actual test proves that the system has a higher accuracy of assessment, stable performance and better robustness.
UHF RFID Reader Design
Authors: Xu Da Wei , Deng Lei Lei , Ren Shan
Published: September 2014

UHF radio frequency identification system with write speeds, large storage capacity , recognition distance and simultaneously read multiple tags , etc. , has been more widely used in logistics. Introduced in line with ISO 18000-6 standard UHF RFID tag main characteristics, structure, working principle and write methods, proposed the corresponding reader solutions, focusing on the reader hardware design and software program flow. The application results show that the reader read and write speed (single tag 64bit / 6ms), recognition rate, recognition distance (≥ 4m).
A New Type of Lead Sealing for Electric Energy Meter Packaged on the Spot
Authors: Hou Xing Zhe , Yan Hui , Feng Ling , Wei Dong
Published: September 2014

The new type lead sealing of aluminum alloy designed and manufactured by an electric energy meter packaged on the spot, has the excellent characteristics of anti-counterfeiting,anti-pry, and good anti-electric larcenies.
Design Based on PLC Programming Control De-Dust System
Authors: Wang Gang Quan
Published: September 2014

In this paper, The article applies the principle of the PLC programmable controller control, according to the process requirements of de-dusting program design the ladder diagram system of dust-free workshop control program, using the advantages of PLC control system full, which make the function more powerful and make the design andthe operating system more simple.
Research & Development of Three-Phase Full - Controlled Bridge Rectification Circuits Experiment Device Based on TC787
Authors: She Yan
Published: September 2014

The work principle of TC787 are explained, including the function of each pin. The design idea about trigger circuit are given. And the structure and feature of main circuit is presented. Finally the experiment results are educed. A new design for three-phase full-controlled circuit system was introduced, which was based on TC787.This system, which was in application to TC787 instead of KJ/KC, was more reasonable and convenient, as well as more reliable and less cost in power. It had a wonderful application foreground in power electronics field.
Applicability Analysis of PTN Technology in Henan Electric Power Transmission Network
Authors: Yang Yi , Lv Jing Xian , Wang Shi Wen , Cai Pei Lin , Li Wen Cui
Published: September 2014

Power communication network is an important part of an intelligent grid. This paper focuses on problems in Henan electric power transmission network, analyzes business requirements, technical routes and implementation of programmed areas, and summarizes the technical advantages of PTN technology in the standard process. Application of PTN technology in Henan electric power transmission network can solve the problem of surging data service. Fully taking into account the current and long term investment benefits, its comprehensive benefit is greater than a comprehensive upgrade of SDH equipment.
The Researches on the Construction of the Management in Integrated Electric Power Communication Network System
Authors: Yang Yi , Lv Jing Xian , Sheng Lei , Sun Yu , Zhao Xuan Chen
Published: September 2014

With the extensive construction of integrated network management system for electric power communication, the practical level of construction has become a key factor on its effective. This article analyzes the advantage and necessity of the construction of integrated centralized power communication network management system, review and summarize the electrical communication in real-time operation, maintenance management, operating mode management, professional management, the integrated management and control needs, professional collaborative management six aspects of the functional requirements analysis, elaborate communication network management system application exploration and research, and the future utility of the road overall construction ideas.
Low Power Wireless Sensor Software Design Technology Activated by the Electromagnetic Wave
Authors: Ju Jin Wu
Published: September 2014

The wireless sensor module is the thing networking technology first floor technology base, the wireless sensor module uses the battery power supply generally, this requests it to have the low power loss characteristic, requests when generally the work long must amount to for several thousand hours.This article introduced in the wireless sensor module design process, in view of its low power loss request, the technology which uses in the software design.
The Establishment of the Pork Product Traceability System Based on RFID
Authors: Ma Li , Yu Heng Long
Published: September 2014

in order to ensure the quality and safety of pork products, improve the pork food traceability information real-time, reliability and accuracy, this study adopts B/S structure, designed and implemented based on radio frequency identification technology (RFID), bar code technology, network information technology of pork products traceability system. The system through the electronic tag and barcode for pork food raw material source, production and processing, logistics, and real-time tracking, the terminal sales each link of each link and data transmission through the network to the system server. Consumers on the basis of tracing the source through the computer and mobile terminal can be convenient and quick query ginseng food traceability information.
A RTDS Model for Simulating HVDC Transient Valve Voltage during Commutation Period
Authors: Qian Luo Jiang , Yan Jun , Zhou Pei Hong , Nie Ding Zhen
Published: September 2014

This paper presents a RTDS model applied to simulate periodic commutation impulse voltage of HVDC convent valve. The model’s main configure and basic parameters are matching to a typical monopole system which include 12-pulse converters of rectifier and inverter, convert-transformers, DC transmission line, DC filters and AC equivalent power network. Among the system model, the valve components of rectifier are User-Define-Component (UDC) model with RC branch for describing detail valve internal. And also, discrete time step apply 2.5μS non real-time of RTDS for complying with high frequency transient. The validation test is carried out and the result show that the model can simulate accurately valve voltage waveform.
Coolers Based on Semiconductor Refrigeration Technology for Electric Vehicle On-Board Chargers
Authors: Dong Wen Kai
Published: September 2014

In this paper a new type of coolers for electric vehicle on-board chargers is presented, which is based on semiconductor refrigeration technology. Using TEC1-12706 we design a cooler for an on-board charger whose power is 3.3kW. And a thermally driven water cooling system is presented to cool the hot end of the semiconductor chilling plate. Semiconductor chilling plates have the advantages of small size, low weight, dust prevention, seismic resistance, non-noise pollution and non-mechanical wear. So they can obviously improve the performances of the coolers used now. Experiments show that the cooler designed can cool the charger well.
Numerical Simulation on Air Volume Flow Rate Distribution of Stator Ducts for Salient Pole Synchronous Motor
Authors: Liu Li , Lu Yi Ping , Han Jia De , Sun Xue Mei
Published: September 2014

Air volume flow rate distribution of stator ducts along axial and circumferential for salient pole synchronous motor is strongly influenced by the air flow field in the air gap and rotor poles, which is completely different from the flow characteristics of non-salient pole motor and it directly relates to the peak temperature of stator bars and core and axial temperature difference which can affect the safety of the operation. A three-dimensional physical model of 1/8 motor was established and corresponding solution domain boundary conditions were given in this article. The air volume flow rate distribution of stator ducts along axial and circumferential was analyzed based on CFD. The study show that at the same position of the axial stator, the cooling air flow into stator ducts along the circumferential direction is uneven, the air volume flow rate distribution is largely influenced by rotor pole pieces, geometry and position of pole support block and rotor rotation direction.
Calculating Capacitance by the Mirror Image Method
Authors: Chen Meng Qi , Li Hua Wei , Chen Fu Wei , Li Shan Ying , Cao Tian Zhi , Wu Tao
Published: September 2014

For quantitative analysis of impact of grounding capacitance on the traction power supply system, in this paper, two wires system as an example with the mirror image method concluded the calculation formula of two wires system to ground capacitance and partial capacitance. At last, the influence of grounding capacitance on the traction power supply system is given quantitatively to provide the more accurate basis for engineering calculation.
A Brief Overview of Service Restoration in Smart Distribution Network
Authors: Wang Ning
Published: September 2014

Service restoration which is an important part in smart distribution network has become more important in improving the reliability to customers and reducing the interruption loss. The mathematical model including objective functions and electrical constraints are overviewed in the paper. Three algorithms based on heuristic search, artificial intelligence and combinational method are elaborated separately. Finally, the problems needing to solve in future are discussed combining with the research status and the recent advance in distribution network.