bluuebunny/crossref_metadata_2025 huggingface dataset:
Human and Veterinary Antibiotics Used in Portugal—A Ranking for Ecosurveillance
Authors: Almeida Anabela , Duarte Sofia , Nunes Ricardo , Rocha Humberto , Pena Angelina , Meisel Leonor
Published: May 2014

Antibiotics represent a pharmacotherapeutic group widely used in both human and veterinary medicine for which ecosurveillance has been continually recommended. It is urgent to rank the antibiotics and highlight those that may pose potential risk to the environment, a key step for the risk management. The absence of this type of contributions applied to the Portuguese reality supported the idea of compiling the data presented herein. With such purpose the most recent and representative data is used to draw a comparative contribution of each antimicrobial classes according to their intended use, i.e., in human versus veterinary medicine. The aim was to assess: (1) the amount and patterns of antimicrobials usage between human and animals; (2) the qualitative comparison between the antimicrobial classes used in each practice (human and veterinary) or specific use; (3) the potential to enter the environment, metabolism, mode of action and environmental occurrences. This manuscript will, thus, identify priorities for the environmental risk assessment, considering the ranking of the antimicrobials by their usage and potential environmental exposure. Ultimately, this study will serve as a basis for future monitoring programs, guiding the policy of regulatory agencies.
A Pediatrician's View
Authors: Hoekelman Robert A
Published: May 2014

Organ Transplantation: A Difficult Road to Travel
A Pediatrician's View
Authors: Hoekelman Robert A
Published: May 2014

Editorial Ethics
A Pediatrician's View: Crib Death and Managed Care
Authors: Altemeier William A
Published: May 2014

"Doctor, Shouldn't My Baby Have a Home Monitor?"
Can e-Government Applications Contribute to Performance Improvement in Public Administration?
Authors: Pimenidis Elias , Georgiadis Christos K.
Published: May 2014

Electronic Government applications have been the focus of hundreds of local and national government administrations all over the world during the past decade. The emphasis of most of these applications lies in their effort to improve the experience of the user in interacting with public administration services and to minimise waiting times in completing transactions public services and citizens. Early applications were relying mainly on the speed and simplicity of submitting a request by the user while most of the work beyond the web based interaction was carried out as in the era before the introduction of the web based applications. The benefits from such endeavours have been short lived as citizens are looking for real enhancements in the way public administration serves their needs and responds to their requests. The authors argue that for e-government applications to succeed, considerable changes in the way public administration organizes itself and how it utilizes information management systems to respond to user / citizen requirements including and addressing the goals of all stakeholders involved are required. Currently the number of successful applications to that end is quite low when compared to the projects implemented and the resources invested in such systems so far. The authors propose steps that would maintain the focus of future implementations in doing so. They also identify the next steps for research in addressing this complex and ever evolving issue.
Modeling of Steel-Reinforced Concrete Panels under Blast Loads
Authors: Lin Xiao Shan , Zhang Yi Xia , Hazell Paul Jonathan
Published: May 2014

In this study, a finite element model is developed for simulation of the structural behaviour of steel-reinforced concrete panels under blast loading using LS-DYNA. Pure Lagrangian formulation is applied in the finite element analysis, and the strain rate effect is taken into account in the material models of both concrete and steel. The finite element model is validated by comparing the computed results with experimental test results from the literature. Structural behaviour of concrete panel with different parameters under blast loading is also investigated. Keywords: Blast resistance; Finite element model; Reinforced concrete panel; Strain rate effect
Limiting Force Profile and Laterally Loaded Rigid Piles in Sand
Authors: Qin Hong Yu , Guo Wei Dong
Published: May 2014

In this paper, closed-form solutions were used to analyze the response of eight laterally loaded rigid piles obtained from field test, centrifuge test, and 1g laboratory model tests, allowing the modulus of subgrade reaction and the profile of limiting lateral resistance force per unit length (LFP,puprofile) to be back calculated. The study shows that (1) with a constant modulus of subgrade reaction, a linear increasing LFP and elasto-plasticp~ycurves, the response of laterally loaded rigid piles can be well predicted in the framework of load transfer approach; (2) the gradient of the LFP is 0.64 ~ 3.0 times that of the Barton LFP; and (3) the gradient of the LFP and modulus of subgrade reaction increases approximately linear with the confining pressure in the model tests.
The Optimization of Small End Bushings of Connecting-Rod in Heavy-Load Diesel Engines
Authors: Yin Song , Qin Wen Jie
Published: May 2014

The mechanical fit between the connecting rod's small end and the bush is a typical interference fit. In this paper, an elastic-plastic finite element model of the assembly of the connecting rod and the bush is built based on ABAQUS simulation platform and simulation experiments are carried out by adopting the method of design of experiments. The magnitude of interference and the thickness of the bush are set as the test factors and the maximum radial deformation of the connecting rod’s small end hole, the radial contact pressure between the connecting rod and the bush, the plastic deformation of the bush and the fatigue strength safety coefficient of the connecting rod small end are set as the response variables. Based on the response surface equations, the multi-objective optimal approximate mathematical model is set up and the Pareto optimal set are gained and discussed.
Study on Optimal Design of Ideal Steering Ratios Based on Genetic Algorithm
Authors: Wang Guan Yi , Shi Jing , Li Gang , Huang Liang
Published: May 2014

The design method of ideal steering ratio based on constant yaw rate gain is studied in this paper.The linear 2-DOF vehicle model is established.The open loop total variance is selected as the objective function and the yaw rate gain is optimized by genetic algorithm. Then the ideal steering ratio is calculated and improved. The results of the simulation test show that the ideal steering ratios control can improve the handling stability of the steering-by-wire vehicle better compared with the traditional vehicle .
Design of the Tracked Vehicle Based on the STM32
Authors: Li Wei , Sun Shu Ying , Liu Jiang Yi , Cao Bin Qian
Published: May 2014

As the crawler vehicle with the excellent off-road performance, the battlefield survival ability, etc , are widely used in modern weapons systems In order to make teaching model close to the real equipment , designed a tracked vehicle of anti-aircraft gun based on the STM32F103 microcontroller, combined with the H-bridge motor circuit ,photoelectric encoder angle measurement and control principle of single lever operation, experimental results show that the tracked vehicle can complete forward, backward , turning and braking actions in accordance with the control command , with fast dynamic response , high control precision , to meet the design requirements.
Numerical Simulation on the Flow Field of External Gear Pump Based on FLUENT
Authors: Guo An Fu , Jiang Ting Ting , Wang Tong , Hu Yun Ping , Zhang Da Jiang
Published: May 2014

In this paper, the software FLUENT was employed and the two-dimensional flow fields of external gear pump, such as flow distribution, velocity distribution, pressure distribution, turbulent kinetic energy distribution are obtained. The results show that the pressure of the pump presents the symmetry and the maximum static pressure is 0.127 MPa at the oil absorption cavity inlet. The maximum velocity appeared in the left side of the gear pump body reached 6.97m/s and the minimum velocity reached 1.09m/s on the two gears meshing line. Turbulence kinetic energy distribution of the pump shows the symmetry and the minimum turbulent kinetic energy appeared in the two gear mesh is 0.0312m2/s2. Meanwhile, the maximum turbulent kinetic energy reached 12.2 m2/s2 at the exit of the oil cavity. The maximum exit velocity appeared at the position of the intermediate point reached 3m/s. The results have referenced significance for design and analysis of external gear pump.
Research on Straw Returning and Fertilization Seeder
Authors: Lu Xin Chun , Chen Shu Fa , Yang Jin
Published: May 2014

A kind of straw returning and fertilization seeder was designed. The overall structure and key technologies were introduced. The structures and parameters of the key parts were determined. The teamwork machine has a reasonable and compact structure and wide applicability, which can realize straw chopping, tillage, soil preparation, seeding, fertilization and compacting.
A Design of Novel Intelligent System of Single Phase Electric Meter for Building
Authors: Song Ke , Cheng Xiao Hui
Published: May 2014

According to the number of users and the electricity measurement requirements for building, a novel intelligent system of single phase electric meter for building has been proposed in this paper. It is aiming at the application status and existing problems of watt-hour meter used in China. It has been designed by using the decentralized power parameter detection and centralized control method. The following designs of the intelligent system have been done in the study: the topological structure, hardware and software. According to the design of the intelligent system, the intelligent system of single phase electric meter for building can be developed. The electricity signal processing module, memory, GUI and the communication module are controlled by MCU. The intelligent system can easily measure various parameters, record data safety, calibrate meter with software, and it has more communication interface. The system can be realized functions, such as the monitoring, management, protection, wireless transmission and so on. It can be widely used in ordinary households, residential users, student apartments, office buildings, etc. to achieve the electricity detection, monitoring and controlling intelligently.
Research on New Type Magnetohydrodynamic Ocean Wave Energy Conversion System
Authors: Wang Zhen , Li Yong Guo , Wang Shi Ming , He Qing Yi , Zhang Jie
Published: May 2014

Liquid Metal MHD generation system for wave energy takes the wave motion into reciprocating motion of the liquid metal by using the efficient liquid Metal MHD power generation technology, and then the wave energy directly changes into electrical energy through the power conversion system. According to this principle, a flexible and direct magnetic fluid generating structure for wave energy is proposed. It selects the appropriate permanent magnet material and the liquid fluid, also an articulated manner to the permanent magnet. An array mode of permanent magnet and the initial channel structure of generating is important. The device has an advantage of low pollution, high efficiency and technology, can reduce energy consumption, improve energy conversion efficiency.
The Assignment Technology Research of Arbitrary Pole for Second-Order Control System
Authors: Li Yi Ming
Published: May 2014

For any second-order system, so long as it can be proved that it can be controlled and observed, it can be arbitrary pole configuration. The article selects a typical second-order system, and the first the paper writes the block diagram of transfer function, and proves its controllability, and then carries pole assignment with it. The paper writes the transfer function based on pole assignment of equation, and then writes its hardware simulation diagram, finally validates by computer simulation software and hardware platform. The experimental results show that the dynamic characteristic of the system is obviously better than before pole assignment.
Heat Transfer Enhancement by Ultrasound Pressure Waves in Liquid Water: A Cooling Method for New Electronic Components
Authors: Bartoli Carlo , Baffigi F. , Brunini Andrea
Published: May 2014

The objective of this work is to study the increase of the convective heat transfer coefficient in the presence of ultrasound waves and, in particular, to find a relationship between the ultrasonic power and the effective pressure of water. The tests have focused on the heat exchange by natural convection, in single-phase conditions, at atmospheric pressure, between a cylinder, heated by means of the Joule effect, and distilled water, with and without the action of ultrasonic waves. The variables involved in the heat exchange have been varied within the range allowed by the experimental apparatus and the convective heat transfer coefficient has been maximized. The specific thermal flow has been chosen in a range compatible with applications in the field of electronics. For the first time the pressure of water at various ultrasonic power levels has been measured, in the vicinity of the cylindrical surface, thanks to the collaboration with the Naval Experimentation and Support Center (CSSN) of the Italian Navy in La Spezia, Italy.
Research on Active Equalization of Lithium Battery via SOC
Authors: Wang Yun Gan , Wang Zhong Feng , Huang J.L. , Li Li Gang
Published: May 2014

This paper presents an active equalization method for lithium battery via SOC. The high accuracy of SOC is promised by extended Kalman filter algorithm (EKF) based on the adaptive parameters equivalent-circuit model at all SOC region. Then a small size, low loss resonant soft-switching active equalization circuit is presented. That circuit combined with SOC do precisely balance the battery pack during charge and discharge processes, which can effectively improve the battery pack’s using life.
Design of Intelligent Energy-Saving Control System Based on Pyroelectrical Sensor
Authors: Zhang Qiu Jie , Yu Cao Feng , Huang Qing Qing
Published: May 2014

The control system uses pyroelectric infrared sensor as the detecting element, STC89C52RC microcontroller as the control core, to detect and determine the direction of human movement, demographics and intelligent control of indoor appliances. This control system has simple structure, reliable performance, low cost, it can be used in homes, school classrooms, large venue and other places, has good prospects. This article elaborates from the working principle, hardware circuits, program design and other aspects.
A Real Time Error Compensation Method for CNC Machine Tools Based on Redevelopment of Human-Machine-Interface
Authors: Lu Hong Xing , Yang Jian Guo , Xiang Si Tong
Published: May 2014

This paper proposes a new real time error compensation implementation method for CNC machine tools. The proposed method reduces the complexity of compensation system significantly, which takes full advantage of numerical control system. The Compensation Control software is developed based on original Human-Machine-Interface software of Siemens 840D numerical control system. Meanwhile, the compensation controller shares the CPU of with the Man-Machine-Communication module. Due to it hardly needs any external devices except some necessary sensors, the proposed compensation strategy greatly reduces the cost of building a compensation system and the stability of compensation system is enhanced accordingly. Experiments have been conducted and the results show that the proposed method can improve the accuracy of machine tools dramatically.
Application of Association Rules Based on CF Gene in Intrusion Detection
Authors: Fu Rong , Liu Li Yan , Zhang Ying Qian , He Yi
Published: May 2014

By analyzing and studying the most current algorithms about mining association rule, the rules evaluated by minimum confidence could not ensure the validity of the rules and will generate unrelated rules which will affect the intrusion detection work. This paper proposes CF measure based on the previous work and applies the association rule algorithm based on CF to intrusion detection technology to detect the intrusion behaviors in the network. Finally, experiments show that improved algorithm is more efficient.
The Research on Port Loop Detection Method of IEEE1394 Physical Layer
Authors: Xu Jin , Lu Hong Wei
Published: May 2014

IEEE1394 is a high performance serial bus, which physical layer directly to transmit and receive data with other nodes. when the ports of physical layer connect to other nodes, The connection which is not allowed may be activated. so there may be a loop formed in a bus topology ,which may influence the normal work of system. This paper analyzes the causes of the physical layer interface to form a loop, and introduces the method of port loop detection.
Software Design of Measurement and Control Device for Smart Grid Based on Embedded Operating System
Authors: Gao Wei Cong , Liu Yi Qing , Wang Xiu Guang
Published: May 2014

Real-time multi-task embedded operating system is widely used in intelligent electronic devices. But the software design method with embedded OS is not familiar to developers in power system. So this paper depicts a sophisticated solution to overcome the difficulty in embedded software design. An overall software design is achieved in detail, and the emphasis is software architecture design, interrupt and task allocation and communication interface. After field validation, the measurement-control devices designed by this design solution have been proven that it is well adapted to the new requirements of Smart Grid.
Transmission Line Status Monitoring System Based on Ad Hoc Network
Authors: Wang Heng Gui , Yan Ying Jie , Sheng Ge Hao
Published: May 2014

Based on the basic principle of wireless sensor networks, the communication platform of a new ZigBee wireless ad hoc network is applied to the on-line monitoring system of transmission lines. In this article, the hardware and software platform architecture of the system is introduced, the scheme and algorithm for cluster network of monitoring nodes based on ZigBee technology are described; moreover a reliable, energy-saving and efficient data transmission method is designed. Application results show that ZigBee technology has the features such as self-organization, dynamic topology, large network capacity and data-centeredness, and possess a distinct advantage in on-line monitoring of electrical equipments.
Study on the Fault Diagnosis of Gear Pump Based on RBF Neural Network
Authors: Zuo Gui Lan , Niu Feng Lian , Cheng Yue , Zhang Yu Xi
Published: May 2014

The failure of hydraulic pump as a power unit in hydraulic systems affects directly the proper performance of the systems. Therefore, the monitoring of the pump performance and diagnosis of pump faults are urgent problems in want of solution. The principle of RBF algorithm is described. Study on fault diagnosis based on RBF for hydraulic pump. The test and analysis results indicate that the method is simple and efficient.
Self-Adapted Layer Contrast Enhancement Algorithm Based on Medical Image
Authors: He Yi , Zhang Ying Qian
Published: May 2014

the paper suggests a kind of self-adapted layer contrast enhancement algorithm for medical images, which, in reference to Laplacian pyramid function, could compose images, and enhance pixel contrast on each layer through F/E processing and use of self-adaptation Sigmoid function, and it uses layer enhancement factor to control the enhancement degree. The result shows that details of medical images can be displayed clearly with this algorithm without selecting characteristic center dimensions. It will not generate artifacts and thus improves visual effect of medical images.
Research on Deformation Analysis of Time-Varying Point Cloud
Authors: Liu Song , Peng Lei , Yuan Lin Lin
Published: May 2014

For large-scale object or scene which needs high requirements of deformation detection, a comprehensive deformation analysis method is proposed based on the time-varying point cloud to perform continuous detection, to comprehensively analyze the deformation and to research its characteristics and rules. In order to improve computing efficiency, a BSP parallel algorithm based on deformation analysis of time-varying point cloud is designed according to BSP parallel computing technology, and the deformational data are handled by a HAMA computing cluster which is composed of common personal computers. Several computing results from both simulations and real cases have proved the feasibility and effectiveness of analyzing method and BSP analyzing algorithm of deformation of time-varying point cloud.
An Improved Similarity Comparison Method for Long Time Series
Authors: Yin Hong , Yang Shu Qiang , Yin Ping , Jin Song Chang , Chen Zhi Kun
Published: May 2014

In the process of satellite monitoring and control management, a lot of satellite telemetry data were generated and stored at a form of time series in the database. Time series similarity measure is the basis of these technologies, and improving its algorithm can greatly promote the efficiency of anomaly detecting. This paper presents a parallel scheme for fast similarity search based on DTW, called MRDTW, in large satellite time series. By experiment evaluation, we show our approach retained the original accuracy as DTW, and the efficiency of similarity measure has been greatly improved in large time series.
A Multi-Sensor Data Association Algorithm Based on Time Constraint
Authors: Ai Ya Qin , Tian Xi , Nie Hong Shan , Liu Yu Jun
Published: May 2014

For the high real-time demands of multi-sensor target tracking system, a global optimum data association algorithm based on time constraint is presented. Firstly, the statistical distance between measurement and prediction center of the track is calculated. An optimal association model among all measurements and all tracks is founded. Then, an improved auction algorithm is proposed to solve the association model. Multi-time auction is conducted in the constrained time, and the optimal solution is obtained by comparing the value of objective function. Simulation shows that the proposed method has a perfect association performance in the constrained time.
A Fast Binocular Vision Stereo Matching Algorithm
Authors: Zhang Hui , Zhang Ling Tao , Ren Yi
Published: May 2014

In this paper we present a fast indoor stereo matching algorithm based on canny edge detection and line moments. We first detect image edge by using Canny operator, then find the target objects according line moments, the feature points of the objects’ contours are extracted. Finally, matching the pixel in stereo image pair according the angle vector. The algorithm effectively reduces the computational complexity, computational cost is decreased greatly. The experimental results show that the algorithm is possible and valid.
Research on Line-of-Sight Rate Estimation of Strapdown Seeker
Authors: Wang Pei , Zhang Ke , Nie Cong
Published: May 2014

As a new type of guidance technology, the strapdown imaging guidance technology, which helps improve the system reliability and reduce costs efficiently, has been paid great attention and developed quickly. However, the detecting information of strapdown seeker can’t be used to proportional navigation directly because it is coupled with missile attitude. A method to estimate the inertial Line-of-Sight (LOS) rate of strapdown imaging seeker based on Cubature Kalman filter (CKF) and Tracking-Differentiator (TD) was presented. As there were high nonlinearity in both state and measurement equations and more serious non-Gaussian noise in the measurements, the Extended Kalman filter (EKF) could not completely meet the requirements of filtering. Compared with EKF and Unscented Particle filter (UKF), CKF was a congruent method for states estimating in the conditions of nonlinearity and non-Gaussian noise. CKF was applied to estimate the LOS rate of strapdown imaging seeker. Because measurement noise of missile attitude will be reflected in estimation result, TD was used to decrease noise of the missile attitude measurements for improving the estimation precision. Monte Carlo simulation results show that the proposed method can improve the precision of guidance.
Experimental Research on Impacts of Operation Parameters on Agglomeration Characteristics during CFB Biomass Gasification
Authors: Fan Xiao Xu , Yang Li Guo , Zhang Hui Liang , Chen Hong Jian
Published: May 2014

The impacts of operation parameters on agglomeration characteristics during biomass gasification in fluidized bed were studied experimentally in a 0.02MWt CFB gasifier using cotton stalk pellet as fuel. The experimental results indicated that among the temperature range (600 °C-800 °C), bed agglomeration would occur after a period running with sand, high alumina bauxite or periclase as the bed material, and potassium gathered on the surface of bed materials. In the process of the fluidized-bed gasification of biomass, air velocity affected the degree of bed agglomeration, and the agglomeration problem in return valve was more serious than that in main bed.
Analysis on Prediction Results and Curve Fitting of Search Engine Based on Boolean Model
Authors: Guo Xin
Published: May 2014

Since twenty-first Century, internet technology has the rapid development, the human society entered the era of network economy. Suddenly rising e-commerce occupies half of the country's retail enterprises. How to improve the efficiency of commodity marketing under the environment of e-commerce is one of the hot problems in modern enterprises. In the paper we firstly present marketing strategy under the environment of e-commerce, analyze the basic principle of search engine marketing, analyze the relationship between basic principles under the search engine marketing framework. Combining with Boolean model, we put forward the vertical search engine oriented marketing model under e-commerce environment. In order to verify the practicability of the model based on fitting simulation of autoregressive moving average model, the results show that the marketing mode u is practical, and with scientific decision-making ability.
A Model of the Geometric Tolerances Modeling and Representation Process
Authors: Jiang Yong Jun
Published: May 2014

Fundamental to the IMP, is the requirement to provide a harmonized data model and represent it appropriately, including geometric tolerances information that can be understood well by computers and users. In this paper, we propose a layered conformance level geometric tolerances representation model. This model uses the widely applied ASME Y14.5M-1994 as its foundation layer by abstracting most information from this standard. Thus, different application domains in an enterprise can use this data model to exchange product information. This model is further transformed with XML Schema that can be used to generate XML instance file to satisfy geometric tolerances representation requirements in IMP. Fig.1 A typical feature control frame and its possible symbols. Fig.2. Example part.
Dynamic Simulation Method for Hard-Rock Pillar Failure in Open-Stope Goaf
Authors: Ma Hai Tao , Wang Jin An
Published: May 2014

An attempt to simulate the cascading pillar collapse is made in this paper for a quick evaluation of a large number of mined-out area data that have been collected throughout China. Pillar collapse, load transfer and load redistribution are modeled by the area-apportioned method, and this methodology is general in sense and has been implemented in the expert system developed by the authors as an independent module. The proposed method can provide a quantitative criterion for determination of the failure pattern and identification of the key pillars in the stability analysis of the mined-out area formed by a pillar-room method.
The Analysis and Simulation for Improved Cutting Process Based on Finite Element Method (FEM) Analysis
Authors: Wang Kai , Sun Wan Chen , Nie Feng Ming , Wu Qing Tang
Published: May 2014

The paper proposed the practical metal cutting process using FEM to simulate the traditional cutting process, the simulation and the analysis of the results are based on the support of DEFORM-3D finite element software, and the characteristic between Galerkin Algorithm and FEM analysis is also analyzed. Then the paper processed the modeling procedure for FEM using Lagrange and Euler algorithm, the simulation result is then compared to traditional ones and proved to be more efficient and with higher accuracy.
Stabilization of Fuzzy Markovian Jumping Systems with Distributed Delay
Authors: Yuan Zhao Ping
Published: May 2014

This paper is concerned with the stabilization problem for fuzzy Markovian jumping systems with distributed time delay. First, fuzzy Markovian jumping systems with distributed time delay are peoposed. Second, a novel criterion of delay-dependent robust stabilization for fuzzy Markovian jumping systems is established in terms of linear matrix inequalities (LMIs) by using Lyapunov stability theory and free-weighting matrix method. When these LMIS are feasible, an explicit expression of a desired adjustable state feedback controller is given. Based on the obtained criterion, the introduced controller ensures the overall closed-loop system asymptotically stable in mean square sense for all admissible uncertainties and time delay.
Research on Ontology Structure Characteristics Analysis and Matching Application
Authors: Li Yue Li , Ren Ai Hua
Published: May 2014

According to the similarity between ontology and complex network, the article analyzes the network characteristics of ontology and brings forward a series of theories based on structural and semantic characteristics as well as quantization criteria for nodes and edges. These theories and quantization criteria are applied to the selection of core nodes and measurement of edge weight. In this article, the problem of ontology matching is transformed into the matching of weighed label graphics, which are based on individual characteristics and organizational structure. The matching of approximately optimization is acquired through quadratic programming. Results of experiments have showed that the structural characteristics of ontology have great influence on ontology matching and the close coupled with the matching of core nodes will significantly improve the accuracy of matching.
Study on Passive Acoustic Orienting System Based on Line Array of Microphone
Authors: Wu Hao , Fu Zhi Qiang , Yue Wen , Wang Cheng Biao
Published: May 2014

The drawbacks of active object orienting system which is difficult to guarantee the concealment and security are obvious. Hence, the passive object orienting system becomes the research focus. Based on line array of microphone, the passive acoustic orienting system collects and records acoustic signals. The acoustic signals are processed by Conventional Beamforming (CBF) algorithm. The hardware of system is proved to be effective in the sound acquisition experiments. The results of acoustic orienting experiments are given, which shows that the error of acoustic orienting is less than 1%. The system which implements acoustic orienting and has a high accuracy is the base of the latter research in the laboratory.
Research on the Influence of Obstacles in the Airport Terminal Area on ILS Ground Station
Authors: Zhang Xian Hao , Feng Wei Qi , Xiang Shuo Ling
Published: May 2014

According to the theory that electromagnetic waves diffract when approaching obstacles, the thesis focuses on the airport terminal area obstacles affection on the performance of Instrument Landing System (ILS). It is done through calculating of the first Fresnel zone radius and clearance and the electromagnetic environment radiation distribution of the ground station via Single-Wedge Model on the basis of combining the Instrument Landing Systemin the civil aviation airport terminal area and abstracted general theoretical model. This research can provide theoretical basis for the arrangement of navigation station and evaluation of the ILS glide slope in a practical airport environment. Therefore, the study is of magnificent importance for the safe operation of the civil aviation airport.
Research on Parametric Deformation Method Based on Human Body Cross-Sectional Contours
Authors: Zhang Xiu Lin , He Bing , Lin Xiao Dan
Published: May 2014

This paper provides a simple and effective parametric modeling method which will simplify the human body model to cross-sectional contours and map selected human body measuring parameters into cross-sectional contours. Deformation functions of different human parts are defined to make deformation on cross-sectional contours. Deformed model is optimized and cross-sectional contours are restructured to triangular grid in order to render the model after deformation. Operations of this method are simple and only 13 commonly-used measuring parameters are needed to obtain targeted human body model with a good sense of reality.
Image Mosaic Technology Based on Matlab Simulation
Authors: Shao Chang Kun
Published: May 2014

This paper uses multivariate planning mathematical model to establish sports tourism planning system, and introduces multiple matrix theory, extracts four characteristic values of the tourist traffic, service, security and environment, realizes the multivariate planning of tourism system. This paper uses the MATLAB software to do numerical simulation on proportion and the expected rate of return for the four characteristic values in planning, we get the multivariate distribution nephogram and rendering nephogram, finally use image mosaic technique of MATLAB to synthetize green planning blueprint of sports tourism. It provides the technical reference for the research on city sports tourism planning.
Concentration Aware Routing Protocol in Molecular Communication Nanonetworks
Authors: Li Zuo Peng , Zhang Jing , Zhang Tian Chi
Published: May 2014

A molecular communication nanonetwork is a new distributed computer network which operates at nanoscale. The simplicity of single nanomachine and the new communication paradigm all pose challenges for the development of communication protocols in nanonetworks. In this paper, a new architecture of molecular communication nanonetworks is first provided and then on this basis, a concentration aware (CA) routing protocol in nanonetworks is proposed, which utilizes the concentration gradient of diffused molecules to establish the path of data relay in multi-hop nanonetworks. The experimental results show that the CA routing protocol is viable for molecular communication nanonetworks and has an excellent performance about the network load.
Electronic Structures of the High-Pressure hcp and bcc Phases of Al: A Computer Aided Design and Simulation
Authors: Xu Chao , Chen Dong
Published: May 2014

Thestate-of-the-artplane-wave methods combined with ultra-soft pseudo-potentials were employed to study the crystal and electronic structures (density of state, band structure) of aluminum in its hcp and bcc structures. In our computation we used the PBE functional, which predicts lattice constants very close to the experimental data. The calculations reveal that the whole valence band of Al is dominated by the 3s and 3p states while the conduction band is mainly contributed by the 3p band. The band structure shows that bcc-Al has a 0eV gap, which reflects its metallic character. The dispersion curves near the valence band maximum and conduction band minimum are quite flat. Generally speaking, our work is an attempt to study the high pressure electronic structures of Al, which needs to be verified by experiments.
Analysis on VB Program Simulation of Cloud Computing Tools Based on Analytic Hierarchy Process
Authors: Zhang Xiao Mei , Liu Da Peng , Chen Zhi Ling , Zhang Xiang Kui
Published: May 2014

In this paper we use AHP mathematical theory, combining with VB6.0 software, and establish preschool children's psychological development model, and design preschool children's psychological development analysis system. In the first part of this paper we introduce the AHP structure, and discuss the principle and process of hierarchical analysis; in the second part, combining with the matrix theory we establish the mathematical model of objective function layer approximation. In order to verify the effectiveness and reliability of model, we use the VB software to do numerical simulation on preschool children's psychological development, and obtain the level nephogram and children's psychological maturity index curve of children's psychological development. It provides technical reference and the theory basis for the effect of preschool physical education on the psychological development of children.
The Research and Realization of a Kind of Log Management-Oriented Descriptive Language to Describe the Security of Computer Network
Authors: Lv Yan Li , Li Yuan Long , Xiang Shuang , Xia Chun He
Published: May 2014

Network Security Logs are the records of the important activities and changes of the network, which not only records the state changes of network or mainframe at any time, but also provides the data bases for the network administrators to conduct network management. How to obtain the effective information of security events from the logs with different formats, thus realizing the detection, analysis and evaluation of the security events, has always been the key point to improve the important content of information security protection and focused on by the network administrators. The paper presents a kind of descriptive language of computer network security focusing on the log management, which realizes the uniform description of the common logs in the network with its effectiveness being verified in the actual network environment. It provides the infrastructural support to improve the early warning capacity towards the information security events.
Web Visualized Method Oriented to Internet Education Text Resources
Authors: Huang Ya Kun , Wang Meng Yao , Wang Yang , Zhao Chuan Xin
Published: May 2014

With the explosive development of the Web2.0, Web education resources have been increasing dramatically. It is just so hard to mine some useful information among the Internet environment filled with a large number of Wed education resources. Due to the fact that human beings have strong ability to identify information quickly in visualization modes, we decide to change the Web resources into the visual form. Visual interface enables us to have more efficiency in observing, manipulating, researching, skimming, collating, comparing and comprehending large scale statistics of Web education resources[1]. In this paper, we process multi-dimension data by some software, get visual results and analyze the Internet education texts.
Multiple Access Control Struction for Cloud with Ciphertext
Authors: Xiong An Ping , He Xin Xin
Published: May 2014

The attribute-based encryption scheme of cloud storage application environment helps achieve a flexible access control and confidentiality of the data. However, at present efficient and fine-grained access control can not be achieved. This is caused by the heavy re-encryption workload of data owner while attribute revocation. Besides, there is no solution to revoke user directly. By introducing key segmentation and proxy re-encryption technology to encrypt the part of the heavy work to the cloud service provider to perform, the new scheme greatly reduces the computational cost of data owner. In addition, a special attribute which the data owner controls independently is added to construct different attribute domains of CP-ABE so that the data owner can completely control of the user permissions. The new scheme not only can support multiple threshold fine access control policies, but also can achieve cancellation directly to the user as well as to the user attribute. Experimental results show that the new scheme is superior to the general scheme, achieve highly efficient, fine, and flexible access control.
Study on Monitoring and Safety Early Warning Technology of Bridge Health Based on Internet of Things Technology
Authors: Sui Li Ying , Chen Zhi Hong , Li Wei , Wang Li Xun
Published: May 2014

Based on the technology concept and application of IOT, the technology of IOT is applied to the monitoring and safety early warning of bridge health to improve the level and efficiency of the operation and management in safety of bridge. The article discusses the key issues involved in the application, from the selection and optimized layout of sensors, the acquisition and transmission of monitoring data, the architecture and function of the bridge health monitoring system, safety early warning model research of bridge etc. And the article provides scientific basis for decision making in the safe operation and daily maintenance and management of bridges.
A Novel Comprehensive Evaluation for the Performance of Energy Saving and Emission Reduction in Thermal Power Enterprise Based on Combination Weights and Improved Matter-Element Extension Model
Authors: Zhang Lei , Li Na Na , Zhao Hui Ru , Yang Kun
Published: May 2014

As an important energy production and consumption area, the energy saving and emission reduction performance of thermal power enterprises relates to energy conservation and sustainable development of China’s economy. According to the energy saving policies of power industry, a comprehensive evaluation index system of energy saving and emission reduction performance was built, which contains of energy resource consumption, resource utilization, pollutants emissions and build business efficiency four aspects. The index weights were performed by AHP-entropy weight method considering the expertise and objective information. Meanwhile, an improved Matter-element Extension model was built to evaluate the energy saving and emission reduction performance of thermal power enterprise, in which the domain and standards of maximum degree in traditional model was improved. And an improved correlation function was proposed to instead of traditional correlation function, which is based on both maximum membership degree principle and closeness principles. Finally, the numerical results validate the effectiveness and practicality of the improved model.
Alarm Correlation Analysis Method Based on Fuzzy Immune Evolution
Authors: Wang Yong Wei , Su Hui Fang , Qiu Wei
Published: May 2014

This paper proposes a correlation analysis method based on fuzzy rules and artificial immune. Firstly, we adopt the alarms selection algorithm based on a sliding time window to improve the efficiency of selected alarm. Secondly, the analysis method based on fuzzy correlation rules is used to associate the known patterns static and rapidly. Then, using a method based on immune evolution to improve and adaptive the antibody so as to achieve the dynamic, intelligent correlation of unknown model. The experimental results in LLDOS1.0 and LLDOS2.0 show that the new method gets better accuracy than typical correlation methods, which can ensure the efficiency of correlation analysis and the adaptability of the correlation method.
The Survey for Ontology Matching
Authors: Chu Yan Ping , Zhu Chang Jiang
Published: May 2014

An ontology enhances interoperability among applications via the Web. However, heterogeneity between ontologies blocks interoperability across ontologies via the Web. This paper introduces the classification of information used to matching ontologies, presents matching technologies in some aspects, and gives a brief outlook of these technologies, such as similarity flooding, coefficient computation, graph matching, machine learning, Bayesian decision theory, background knowledge discovering and exploiting. We believe this paper provides readers with a comprehensive understanding of ontology matching and points to various research topics about the specific roles of ontology matching.
Design of Big Data Processing System Architecture Based on Hadoop under the Cloud Computing
Authors: Duan Chun Mei
Published: May 2014

In allusion to limitations of traditional data processing technology in big data processing, big data processing system architecture based on hadoop is designed, using the characteristics of quantification, unstructured and dynamic of cloud computing.It uses HDFS be responsible for big data storage, and uses MapReduce be responsible for big data calculation and uses Hbase as unstructured data storage database, at the same time a system of storage and cloud computing security model are designed, in order to implement efficient storage, management, and retrieval of data,thus it can save construction cost, and guarantee system stability, reliability and security.
The Implementation of Workshop Production Information Acquisition System Based on RFID and ZigBee
Authors: Zhang Qing Hua , Cheng Jing , Cheng Guo Quan , Wang Zhuan , Zhang Da
Published: May 2014

As requirements for the acquisition of workshop production information tends to be more instant and reliable, this paper proposed a workshop production information acquisition system based on RFID and ZigBee technology. After analyzing the system information demand, this paper designs the system physical structures, communication protocol, tag encoding and software hierarchy. Finally, designs and implements the server-side and terminal-side system which can make information acquisition more real-time and make the production more efficient.
The Complex Properties of Chinese Ship-Transport Networks
Authors: Cui Di
Published: May 2014

Transportation systems are of great importance to the development of a country and are important indicators of its economic growth With 30 per cent of Chinese trade carried by sea and with 90 percent of world trade carried by sea, the global network of merchant ships provides one of the most important modes of transportation. Here, we use information about the itineraries of 187260 ships during the year 2010 to construct a network of links between ports. The network has several features that set it apart from other transportation networks are shown. In particular, most ships can be classified into three categories: bulk dry carriers, container ships and oil &LNG gas tankers. These three categories do not only differ in the ships’ physical characteristics, but also in their mobility patterns and networks. Container ships follow regularly repeating paths whereas bulk dry carriers and oil tankers move less predictably between ports. The network of all ship movements possesses a heavy-tailed distribution for the connectivity of ports and for the loads transported on the links with systematic differences between ship types. The data analyzed in this paper improve current assumptions based on gravity models of ship movements, an important step towards understanding patterns of global trade. We also study the traffic flow of Chinese ship-transport networks (CSTN) based on the weighted network representation, and demonstrate the weight distribution can be described by power-law or exponential function depending on the assumed definition of network topology. Other features related to Chinese ship-transport networks (CSTN) are also investigated.
Matching Model for Scattering Collaborative Logistics Business
Authors: Deng Jian Xin
Published: May 2014

The mutual discovery of collaborative business between companies has great impacts on the efficiency and cost of collaborative logistics.This paper deals with the discovery method by data matching of collaborative transportation business. A match model is proposed to enable the collaborative transportation business to match automatically. The match between shipments and vehicles depends on the matching of operation dates, the origin and destination, type and amount of goods, size of goods. The detailed match corresponding algorithm is developed. A toolkit was developed based on web data to validate the algorithm. It is indicated that this model and the toolkit decreases search effort of partners on looking for their interested business and improves the efficiency of using business data.