bluuebunny/crossref_metadata_2025 huggingface dataset:
Some Primary and Secondary School Building of Masonry Structure Seismic Reinforcement of Key Technical Discussion
Authors: Huang Wen , Du Yu Han , Zheng Fu Yan
Published: May 2014

In view of the common primary and secondary school teaching buildings (including library) that are masonry structure, and discussed the key technology of the reinforced masonry structure seismic, including mesh reinforcement cement mortar reinforced wall, cantilever beam end set column, design method and construction points of adding staircase column. This technology could provide reference for other similar seismic strengthening engineering.
Determine the Radiation Zone of Urban Rail Transit Stations
Authors: Sun Luan Ying , Zhang Xiang Jun , Yu Bo
Published: May 2014

Taking urban rail transit stations’ passenger direct attracting scope as the research object, selecting three types of station in Nanjing Metro Line 1 to field survey respectively from traveler's basic information, traveler’s travel conditions and site surrounding environment to find out the impact factors having great difference among the sites and having great influence as independent variables, radial distance of urban rail transit station’s walking radiation area as dependent variable, establishing a linear equation used to determining the scope of radiation. This formula applied to determine the site practical walking radiation range has reference significance and certain rationality.
Mooring System Waterdepth Design of Considering Stiffness and Drift Angle Analysis
Authors: Ren Hui Long , Zou Jia Xing , Zou Guang Ping
Published: May 2014

The mooring system initial design is quasi-static method based on catenary method. The mooring line stiffness derivation also base on catenary method. In the paper, using jumping wire of high voltage cable calculation method, design the mooring system. Building initial design model, considering the mooring line stiffness and drift angle of mooring line and structure.
Application of Aerodynamics in the Automotive Repair
Authors: Chen Zhao Jun
Published: May 2014

In the development process of the car, the aerodynamics has a strong impact on the automotive research and design. The initial research of aerodynamics focused on reducing air resistance and improving the car's fuel efficiency. Aerodynamic lift and side forces generated has a significant effect on the stability of cars, and even a threat to the safe driving. With the rapid development of automotive performance, the comfort and security of cars have put forward new and higher requirements, wind noise and airflow pollution generated by the aerodynamics have also emerged. How to reduce the adverse effects on the aerodynamics of cars, which is thought about by not only the people of the design, but also the users and maintenance workers in the car. In the course of vehicle maintenance, arising issues of aerodynamics have been gradually received wide attention.
Compound Injection of Shenqi as a Reversal Drug on Docetaxel Resistant Human Lung Adenocarcinoma Cell A549/DTX
Authors: Liu Xiao Dong , Hou Yi Ju , Zhang Lin , Cao Hui Ling
Published: May 2014

To investigate the effect and the mechanism of compound injection of Shenqi (Codonopsis and Astragalus) on Docetaxel resistance of human lung adenocarcinoma cell A549/ DTX. The cytotoxicities of Shenqi Injection were assayed with the MTT method, the effects of Shenqi Injection on apoptosis induced by Docetaxel in A549/ DTX was examined by flow cytometry (FCM). The expression levels of apoptosis regulator Bc1-2 and Bax were detected by Western blot. After treatment with Shenqi Injection for 24 hours, results showed that 15 μL / mL Shenqi Injection significantly increased toxicity of Docetaxel on A549/DTX. Shenqi Injection could reverse the Docetaxel resistance in A549/ DTX in vitro. The drug resistance reversal index (RI) was equal to 2.71 analyzed with MTT method. Shenqi Injection could enhance the apoptosis effect of Docetaxel on A549/DTX. We conclude that Shenqi Injection can reverse the drug resistance on A549/DTX, and its mechanism is to promote apoptosis may be related with the up-regulation of Bc1-2 expression and down-regulation of Bax expression.
Experimental Research on Rough Flotation of Lead in Bainiuchang Lead-Zinc Mines
Authors: Zhang Qi Fu , Lan Zhuo Yue , Shang Xing Ke
Published: May 2014

Containing Pb (1.09% ) and Zn (1.97%),the lead-zinc sulphide ore of Bainiuchang mine is a refractory resource in Yunnan Mengzi. The flotation performance of lead is ineffective in plant practice. This research is carried out to enhance the rough flotation performance of lead. With the dosage of lime and zinc sulfate as depressors, sodium hexametaphosphate as dispersant, and ethyl thio carbamate and MA as combined collector, the grinding fineness of 85% , a lead concentrate with lead grade of 17.68%, lead recovery rate of 75.59%, and zinc grade of 7.16% was obtained. The performance of rough flotation of lead is improved.
SVR Model for Prediction of Incidence Influenza Based on Automated Method
Authors: Song Jia
Published: May 2014

As is a significant public health issue to predict the incidence of influenza, this paper present a supported vector regression (SVR) model based on an automated method which worked as the following steps: firstly, the automated method is used to select the texts which highly related to the influenza, and then the SVR algorithm will find out the nonlinear between each context. According to the result, when assessing by the root mean squared predict error, the mean absolute error and the mean absolute percent error of the whole system, the SVR performed much better than single support vector machine regression prediction. Also, the validity of this method is verified.
A Kind of New Tool Design and Research of being Suitable for Straw Knead Device
Authors: Zhang Feng Wei , Shi Ling Rong , Su Hong Yu , Wang Li Juan , Dai Fei , Han Zheng Sheng
Published: May 2014

The features and require of tradition hammer type straw knead machine, one kind new-type cutter of applying to straw knead machine was designed. The cutter of using zigzag longitudinal knife and dovetail zigzag cross knife, able to finish crops straw longitudinal knead and transverse cutting at once. Application of the new cutter, water and sugar lose significantly reduced in the knead straw, and working efficiency was reasonably well. Field experiments show that using this new tool knead moisture content 56% corn straw ,the moisture and sugar content of material were 50% and 10% respectively after kneading, productivity was1.9t, the length of straw material was 3~6mm.
Based on Embedded Distributed Control System of the Poultry House Environment
Authors: Zhu Gui Xin
Published: May 2014

Poultry breeding environment factors such as temperature and air humidity directly affect poultry production performance for large-scale poultry farms in the demand for environmental monitoring, research and application of CAN bus technology to build a distributed multi-variable environmental monitoring system, which an embedded core from the monitoring center and the PIC microcontroller as the core component of intelligent monitoring terminal, control center real-time monitoring of collection, analysis and processing of environmental information collected from the terminal, the control requirements based on user input, combined with the results of data processing, to the terminal sends control parameters, and breeding farms to monitor more than one poultry house.
DC Servo Motor Control Research Based on BP Neural Network PID
Authors: Xie Yuan
Published: May 2014

This paper introduced the structure and principle of DC servo motor, , derived its transfer function; combined BP neural network with PID control to achieve a composite control arithmetic, that fully embodies advantages of strong self-adaptive, robustness of neural network and high steady-state accuracy of PID controller, which improved the performance of DC motor servo system.
Design of the Remote Control System Based on AT89S52+GPRS
Authors: Yao Cun Zhi , Liu Fu Xing
Published: May 2014

A GPRS remote control system is designed here,this system,taking AT89S52 MCU as the core and including the keyboard and LCD circuits, has the function of sending and receiving the messages;and it supports TCP/IP protocol and X2.5, which can realize real-time online high rate data transmission and the broad scope of access;its suitable for a variety of remote control domain. Keywords:MCU;GPRS;remote;control system
Hardware Design of Data Acquisition and Analysis System for Airplane Power Supply
Authors: Zhao Xu Cheng , Ma Jun Wei , Lv Heng Jun , Wang Xu Kun
Published: May 2014

A data acquisition and analysis system was designed. The paper introduces hardware composition of system. Through automatically collecting characteristic parameters, system can analyze the parameters to monitor equipment operational status.
Parameter Matching and Simulation Study of Powertrain for Extended-Range Electric Vehicle
Authors: Wu De Jun , Lu Ting Yong , Zhang Li Jun , Gong Xian Wu
Published: May 2014

A method of parameter matching for extended-range electric vehicle (E-REV) was discussed to meet the requirements given, then using a model and genetic algorithm to optimize the transmission ratio of E-REV. The parameters of the battery and range extender (RE) are designed by driving range and power requirement. The simulation results shows that the parameter matching is reasonable, and the power performance and driving range could meet the design requirements.
Research on the Automatic Method of Reverse Engineering System in Innovation Design
Authors: Cao Deng Feng
Published: May 2014

The idea of Automatic Reverse Engineering was brought forward, which reduced the requirements of modeling experience, constructed surface more efficient and especially got a more accuracy model. Its main idea was converting triangular meshes which could be easily got automatically and could express arbitrarily complex models into quadrilateral meshes.The concept of reverse engineering, reverse design process and reverse analysis were introduced in this paper, which has been used in teaching practice of mechanical design specialized curriculum, the students will be guided to apply the automatic method of reverse design to the innovation design of product by motorcycle as an example.
Structure Design of the ANSYS-Based SLC9-2-Type Direct Reading Current Meter
Authors: Wang Shi Ming , Wang Zhen , He Qing Yi , Zhang Jie , Zhang Yu Qing
Published: May 2014

SLC9-2-type direct reading; current meter is a lightweight, reliable, affordable, low consumption of the new flow measurement instruments, available for measuring the different depth of water flow speed and direction in the ocean, bays, rivers, lakes, reservoirs, estuaries . By improving its structure, using the simulation analysis of ANSYS software, it analyzes the new structure on the impact of lowing start. Simulation results for the actual SLC9-2-type direct reading current meter provide guidance for new design.
The Design of Switch Assembly Equipment Based on the Pneumatic Drive and PLC Control Technology
Authors: Zhang Qiu Rong , Liu Jun Hui
Published: May 2014

Through the assembling process analysis of the switch functional parts, the physical structure of the assembling equipment was designed and modeled, moreover, the schematic diagram of the pneumatic drive system was also designed on the basis of the motion requirements of the equipment, and finally, the I/O allocation and the electric control diagram were designed accordingly, together with the PLC programming flowchart plotted. Eventually, remarkable benefit has been exhibited after putting into production.
The Measurement and Control System of Agricultural Greenhouse Based on Network
Authors: Fang Xiao , Chen Lin , Yin Hong Zhi
Published: May 2014

A network measurement and control system based on STM32 is designed for the control of greenhouse temperature, humidity, carbon dioxide concentration, etc. ModbusRTU serial bus is used for managing the greenhouse environment instrumentation network and signal acquisition. The remote control of greenhouse is achieved by LWIP Ethernet and Modbus/TCP communication protocol, and the network control of multispan greenhouse is realized by them. MCGS(Monitorand Control Generated System) is used for the design of human machine interaction. The control system can reach producing requirements, high reliability, easy to operate and maintain.
A WSN-Based Remote Monitoring System for Water Quality
Authors: Feng Hui , Pan Zi Jing
Published: May 2014

As a result of bad real-time character of detecting water quality by traditional method, in this paper, we illustrate a new remote water quality system which is designed based on WSN, and consists of wireless sensor nodes, sink nodes and a monitoring center. All nodes are built by CC2530, designed in lower power mode, and organized by Zigbee network to gather water quality parameters such as: PH, DO and turbidity. GPRS module, which is combined in the sink node, is responsible to send managed data to monitoring center which analyses, process and display the water quality parameters to users.
The Distributed Water Supply System Based on the Technology of Power Line Communication
Authors: Zhao Heng , Yuan Zheng Dao , Zhu Can Yan
Published: May 2014

In view of the recent problem of serious water waste at school, this paper proposed a kind of distributed water supply system. This system can control the water resource inside school by network build in the local power line. This paper mainly introduced the system structure, hardware constitution, the software process of upper computer between lower computer of such distributed water supply system, and through the test prototype, it completed the experiment, comparison and analysis.The experiment result shows that such water supply system can improve significantly the water saving rate of school, even to 38 percentages, and has excellent application value.
Simulation of Airborne Electronic Reconnaissance System Based on HLA
Authors: Zhou Fan , Han Zhuang Zhi , Feng Ji Ping
Published: May 2014

Airborne electronic reconnaissance system is mainly used for the completion of the radar signal interception, sorting and identification process. According to the work process of the airborne electronic reconnaissance system, based on the technical characteristics of High Level Architecture (HLA), design and development of HLA-based airborne electronic reconnaissance simulation system. The simulation system is mainly achieved intercepted radar signals, signal sorting, parameter estimation, threat evaluation functions.
3D Modeling for Hillside Landscape Engineering
Authors: Wei Hong Hu , Li Xue Hui , Bao Yan
Published: May 2014

It is very difficult to use conventional modeling software directly to build a complex excavation engineering model. According to a hillside landscape design example and based on geometric theory, the paper puts forward a method to compute point coordinate of 3D complex model. Then 3D surface of the model is generated and is used to incise the hillside body to get the excavating model. Finally the model is visualized to obtain full 3D effect of the engineering.
Plastic Deformation at High Temperature and Processing Map of AZ61 Magnesium Alloy
Authors: Li Quan , Liu Wen Jun , Cheng Ren Ju , Jiang Shan , Luo Su Qin , Jiang Xian Quan , Pan Fu Sheng
Published: May 2014

The deformation behavior of as-cast AZ61 alloy in the temperature range 300-450°C and in the strain rate range 0.01~5 s−1 has been studied using processing maps. For obtaining the processing map, the variation of the efficiency of power dissipation given by [2m/(m+1)] where ‘m’ is the strain rate sensitivity, is plotted as a function of temperature and strain rate. The map exhibited a domain of dynamic recrystallization (DRX) occurring at 425 °C and 0.1 s−1 which are the optimum parameters for hot working of the alloy.
Performance Comparison of MDFT Filter Bank with OFDM in Multi-Carrier Systems
Authors: Zhuang Ling , Ge Ju , Wang Guang Yu , Shao Kai
Published: May 2014

Based on the filter bank, the theory of multi-carrier modulation using Orthogonal Frequency Division Multiplexing (OFDM) and Modified Discrete Fourier Transform (MDFT) filter bank has been discussed and the detailed derivation process has been given. Following these discussions, the actual implementation of MDFT filter bank in multi-carrier modulation systems has been discussed, and then the comparison of their prototype functions, Peak to Average Power Ratio (PAPR) and Symbol Error Rate (SER) are drawn. Experimental results demonstrate that compared with the OFDM system, prototype functions of MDFT have obvious advantage in spectrum leakage. In terms of PAPR, they have similar performance. Whether using QPSK or 16QAM modulation, MDFT is superior to OFDM in symbol error rate as a whole and with increasing of filter length L, the advantage becomes more and more apparent.
Preparation Process and Performance of Porous Alumina Ceramics
Authors: Wang Xian Zhong
Published: May 2014

The preparation process of porous alumina ceramics, the effect of process parameters on the performance of porous ceramic, the findings suggest that pore-forming agent sintered alumina ceramics sintered strength properties and have a greater impact; binders for ceramic porous A1203 porosity has a greater impact.
An Efficient Communication Network SDH Alarm Association Rule Mining Algorithm
Authors: Gao Hui Sheng , Li Ying Min
Published: May 2014

WINEPI algorithm is kind of data mining technology that is widely used in alarm association rules mining. Based on the classic WINEPI algorithm, we apply event window instead of time window to improve the exploration result, meanwhile we use FP-Growth algorithm framework instead of Apriori algorithm framework , thus improving efficiency. Based on the alarm time attribute we find interesting alarm association rules further. Experiments show that compared with the classic WINEPI algorithm our improved approach have advantages in reducing the mining error rate and gaining more interesting alarm association rules.
Applications of Gesture Interaction Based on 3-D Sensing in Mobile Devices
Authors: Mao Xiao Meng
Published: May 2014

Nowadays gesture interaction of mobile device changed human-machine interactive mode significantly, integration of multiple sensors made great change on human-machine interactive mode of mobile device. According to the idiomatic gestures, 3D sensing interactive mode was used in software of mobile device, which brought more convenient and faster interactive experience to users.
Design and Implementation of Internet Public Opinion Monitoring System
Authors: Li Yong Zheng , Zhang Ming Shan
Published: May 2014

With the continuous development of the Internet technology in recent years, the number of Internet users in China is increasing, with the Internet as the mainstay of the Internet plays a more and more important role in the whole social public opinion, our country has been the lack of effective means of supervision, which leads to network public opinion events occurred frequently in recent years, a strong need for a reliable method effective to achieve the monitoring of network public opinion. In view of the above situation, this paper introduces some key technology of Internet public opinion monitoring, then gives analysis, public opinion monitoring system design and implementation.
Development Research of University Library Reader Function Based on Information Technology
Authors: Wang Xu , Wang Yuan Li
Published: May 2014

In the current information era, the channels of peoples access to information have increasingly shown the trend of diversity and the selection range of information we are facing also has become more broad. As the information storeroom of literature materials and library information, libraries are shouldering the major responsibilities of providing general readers with comprehensive and accurate information of teaching and scientific researches, and they should be adhering to people-oriented concept, change readers concepts, and provide excellent and efficient service to meet knowledge demands of readers to the greatest extent.
Ontology Construction Using Multiple Concept Lattices
Authors: Wang Wen Chao , Lu Jiang
Published: May 2014

The paper proposes an ontology construction approach that combines Fuzzy Formal Concept Analysis, Wikipedia and WordNet in a process that constructs multiple concept lattices for sub-domains. Those sub-domains are divided from the target domain. The multiple concept lattices approach can mine concepts and determine relations between concepts automatically, and construct domain ontology accordingly. This approach is suitable for the large domain or complex domain which contains obvious sub-domains.
Research for Network Security Mechanism of Ad Hoc Network
Authors: Zhao Hai Yan , Yang Jun Qiang , Li Hui
Published: May 2014

Ad Hoc network is a special kind of mobile multi-hop wireless networks, which has been widely used various occasions. In this paper, the main characters of Ad Hoc network are presented. Meanwhile, based on the inherent defect and security threats of Ad Hoc network, the corresponding security mechanism and strategy are proposed.
Research on Construction Strategy of Web-Based College Aerobics Information Resources
Authors: Tang Ai Ying
Published: May 2014

The research analysis about the current situation of ollege aerobics information resource construction, pointing out the drawbacks about college aerobics information resources construction under the current web environment and proposes the strategy about how to construct college aerobics information resources under the Network Environment. This article includes the principles and feasibility of college aerobics information resources construction under network environment, and put forward our own ideas about the strategy of college aerobics information resources construction under network environment.
Research on MAMSK and OOFDM Technology in Optical Fiber Communication System
Authors: Liang Yan Kuan
Published: May 2014

In order to realize the large capacity of ultra-high-speed optical fiber transmission, optical modulation and reuse is one of crucial technology. This article discusses MAMSK modulation format all-optical OOFDM transmission system. The MAMSK modulation format with the method of phase modulation combined with multiple amplitude modulation, at the same time on the signal phase and amplitude modulation information, achieve the goal of lower code rate. All-optical OOFDM multiplexing technology is the electric field of OFDM, half its adjacent subcarrier frequency spectrum overlap, so the spectrum efficiency is very high, is a kind of very potential recovery technology.
Research on the Copyright Protection and Information Sharing in the Network Publishing
Authors: Yu Wen Bo
Published: May 2014

The Network Publishing is a new type of publishing in near future,which presents a severe challenge for copyright protection in the environment of Internet. This paper defined characteristics, scope and conformations of the Network Publishing based on publishing theories; and also analyzed the development of some laws and regulations on Copyright in terms of publishing and printing. This paper further put forward the solution to the challenges presented by the Network Publishing concerning copyright by analyzing copyright in network environment based on some pertinent terms of the new Law on Copyright in China.
Research on the Network Fault Isolation Based on Negative Selection
Authors: Li Yan Guang
Published: May 2014

An algorithm for constrained flooding based on negative selection is proposed due to improve delay of flooding and quality of operation when the network transmit the fault information. According to the network environment different demand between delay of flooding and quality of operation, cost function of flooding delay and operation losing are set, the optimizing objective function synthesize two factor is also set, and negative selection algorithm is used to compute the area of constrained flooding. The experimental result shows that this algorithm can improve the capability in network.
Study of the Factors Affecting Wireless Transmission on JN5148
Authors: Wu Zi Yu , Gong He , Li Shi Jun , Yu Man Hua , Wang Shi Ying
Published: May 2014

The JN5148 from Jennic is a kind of ultralow power, ZigBee wireless microcontroller. Its application is more suitable for popularization in practical application, because the wireless transmission distance is remoter than other similar products; however, it also has the energy loss during transmission. This article emphatically probes into the influence factors of the energy loss according to the practical situation, and lists some corresponding improving measures about the wireless communication distance.
The Research of Several Technical Problems about Wireless Mesh Network Routers
Authors: Zhao Yong Hong
Published: May 2014

The design of the wireless Mesh network routing protocol is the research emphasis in the field of wireless Mesh network, first of all, according to the general research of the Mesh network routing protocol. Mesh network routing protocol can be divided into two categories at present: One kind is designed based on the traditional Internet routing protocol; another kind is based on the improvement of mobile Ad hoc network routing protocol. And based on this, make an analysis and comparison of some typical routing protocols, discussing the research direction of Mesh network routing protocol in the future.
The Research of the Interaction Mechanism between BIM and Organizational Integration
Authors: Chen Yong Hong , Zhang Yang
Published: May 2014

Conduct a comprehensive and detailed study about the origin, development and the deep meaning of BIM; analysis of the integrated nature, and thus explain organization integration. On this basis, focus on the interaction mechanism of BIM and organizational integration, and explore the management mode of organizational integration based on BIM
The Research on GNSS Message Synchronization Method Based on SOC
Authors: Bao Hui
Published: May 2014

In order to solve the problem that the traditional method on satellite navigation data bit synchronization, frame synchronization is error-prone and of a low speed, a new method is proposed to improve correct rate and to increase the synchronization speed on the system on chip (SOC) which is a flexible software system. It makes use of the property between satellites to keep the correctness and raise the speed. According to the simulation, it is proved that the new method improves the performance of the navigation processing with a high speed.
The Study of Network Management System for Power Communication Terminal Access Network
Authors: Hou Si Zu , Ge Bao Lai
Published: May 2014

In recent years, with the expansion of network scale, network device type is increasing year by year and the network management systems vary. [ Meanwhile, communication technology is upgrading quickly and network topology is perplexing, failing to achieve a unified management of access network management. This paper proposes a well-established power communication terminal access network management system. First, the paper starts from the requirements of the development of smart distribution networks, analyzes the network structure of the managed network and proposes the overall architecture terminal communication access network systems and overall resource model. Based on the smart distribution communication management requirements, it makes a detailed analysis of the various modules of the system function, and finally an in-depth analysis of the safety protection system.
T-LB: A Topology-Based Load-Balancing Algorithm for Structured P2P Networks
Authors: Wang Zhen , Peng Lai Xian , Zhao Wen Dong
Published: May 2014

In interest-based structured P2P networks, the load unbalance problem restricts the performance of the network. To solve this problem, A Topology-based Load-Balancing Algorithm called T-LB is presented. It adopts the concept of virtual server, defines balancing domain as nodes with same interest, determine the Q value of each node according to the characteristics of the network topology, and then dynamically distribute network load based on the Q value of nodes. Simulation results show that T-LB improves the proportion of non-overloaded nodes to from 65% to 86%, reduces the average information query delay, and improves the performance of the network.
Chinese Garbled Studies with PHP and MySQL Platform
Authors: Zhu Hai Yan , Zhao Xin Ping
Published: May 2014

Chinese garbled is a common problem in developing with PHP and MySQL. This paper analyzed and discussed the reason of Chinese garbled, and given the solutions.
The Study of Online Recharging for Campus Cards Based on the Third-Party Payment Platform
Authors: Zhang Hui Lin , Zhang Yu , Zhong Wen Feng , Li Ming Yuan
Published: May 2014

In order to enrich campus card recharging methods and improve the cardholders experience, this paper first briefly introduces the campus card online recharging modes based on the third-party payment platform, then analyzes the business processes of the self-help recharging mode and the automatic recharging mode, introduces the validation processes of the transactions, and expounds the fund flows and the double reconciliation mechanism at last.
Role of Nitrite Ions and Natural Organic Matters as Photosensitizers on Photolysis of Phenol
Authors: Liang Chen , Zhao Hui Min , Deng Min Jie , Quan Xie , Chen Shuo
Published: May 2014

Nitrite and natural organic matters (NOM) are well known to be involved in photochemical processes occurring in natural waters. In this study, phenol is chosen as model molecule to investigate the role of nitrite ions or NOM towards the transformation of organic matters in aqueous solutions under simulated sunlight irradiation. All experiments were performed in pure water at pH 7. The results indicated that phenol phototransformation rate increased with increasing nitrite or NOM concentrations as expected. And •OH radical was demonstrated to be the main relative free radical according to the electron paramagnetic resonance (EPR) and isopropanol quenching experiments. But unexpectedly, the presence of NOM would inhibit nitrite ions-sensitized photolysis of phenol, and it might be attributed to the ROS quenching and light screening effect of NOM. The results imply that for accurate ecological risk assessment of organic pollutants, the integrated effect of water constituent on the environmental photochemical behavior of organic pollutants should not be ignored.
The Internet of Things Based Yak Farm Image Acquisition Node Hardware Design
Authors: Ma Guo Jun
Published: May 2014

This paper describes the design idea of yak farming hardware of remote image acquisition system, from the camera communication circuit, wireless communication circuit, power supply circuit for yak farms node wireless remote image acquisition, transmission system hardware design.
Key Technology Research and System Development of Service Management Platform Based on Cloud Computing
Authors: Ren Qiong
Published: May 2014

Cloud computing is an emerging computing model, which is developed on the basis of grid computing, and has wide application prospect. This paper systematically analyzes and summarizes the research status of cloud computing, low cost, high reliability, high availability, scalable scale, such as the research target, deep service based on cloud computing platform is introduced to develop key technologies and the latest research progress, discusses the cloud computing service management platform functional requirements, and studied the system development, to further promote cloud computing and is of great significance to the formation of new service management platform.
Study on Properties of Modified Poplar Wood
Authors: Wang Yong , Chen Ze Jun , Deng La Yun , Fan You Hua
Published: May 2014

The paper based on a comparative study between poplar wood and modified poplar wood, concerning dimensional stability, physical and mechanical properties. The result showed that air-dry density and ASE value of modified wood samples were increasing in different levels with change of the modifier concentration, compared with untreated poplar wood. The air-dry density of modified wood reached 0.41 g/cm3 with increase of 5.3% compared to poplar wood. ASE reached 47.8% and the water-absorption ratio decreased by 38% at most when the modifier concentration was 30 wt.%. Moreover, the MOE and MOR of modified poplar wood increased up to 27.4% and 13% respectively when the modifier concentration was 25 wt.%. The SEM spectrum showed some wood rays and the gaps between staggered fibers were filled by modifier.
Study on Surfacing Technics of 18CrNiWA Engine Crankshaft Surfacing Welding with Flux-Cored Wire
Authors: Zhang Yu Feng , Li Min Rui , Wang Jian Cheng
Published: May 2014

It discussed repairing the worn engine crankshaft with chromium series metal powder-cored wire. The Mo, Mn, V, Ti metal powder and the SiC ultrafine particles, WC nanopowder added in chromium series metal powder-cored wire. That made the surfacing layer obtained high bonding strength, high hardness, and obtained high fracture toughness. The result indicated the SiC ultrafine particles/WC nanopowder could promotion the in-situ reaction in the surfacing layer, formed the dissemination strengthening, the melting strengthening and so on multi-mechanism strengthening effect. SiC and the metal matrix was not merely the mechanical bond, the partial regions were by the chemical bond. That realized in the structure continuity. And the repaired crankshaft surface wear-resisting disposition enhanced 24% than the original.
A Note for Order-Preserving Encryption Based on Negative Hypergeometric Distribution
Authors: Hu Dong Ping , Zhu Yuan Ping , Yin Ai Hua
Published: May 2014

Order-preserving encryption (OPE) scheme is a deterministic symmetric encryption scheme whose encryption algorithm produces ciphertexts that preserves numerical ordering of the plaintexts. The cryptographic study of OPE was initiated by Boldyreva, Chenette, Lee, and ONeill [1]. They proposed an OPE scheme based on a sampling algorithm for the negative hypergeometric distribution (NHGD). In this paper, we present the security analysis of NHGD-based OPE and the proof procedure of efficiency.
Research and Design of a Large Bandwidth Receiver RF Front-End
Authors: Liu Wen Kai , Wang Peng , Cui Jian
Published: May 2014

RF front-end is an important part of the communication system. It realizes the functions such as low noise amplifier application, filtering and mixing, completes the conversion between the IF signal and the RF signal, and ensures effective communication system flexibility and versatility. In the paper, according to the superheterodyne structure, a receiver RF front-end has been designed. The total gain of the link circuit is more than 100 dB, with 50 dB AGC range, the center frequency is 750 MHz with 100MHz bandwidth, local oscillator (LO) signal with frequency 935MHz is generated by PLL and the stability is-82dBc/Hz@1KHz.
Data Mining and its Application in Modern Animal Husbandry
Authors: Zhang Zhi Ming , Sun Ya Juan , Liu Tai Yu , Xu Lei
Published: May 2014

Modern animal husbandry information technology, networking and intelligent development of data mining techniques proposed requirements. This paper analyzes the data mining for the importance of modern animal husbandry management, data warehouse, data mining technology, focusing on the analysis of data mining in the mining process in the modern animal husbandry management decisions and implementation of technology, pointed out the data mining technology provide more powerful support functions for modern animal husbandry management decisions.
Service and Role Oriented Access Control Model
Authors: Guo Lin , Yang Xiao Jun
Published: May 2014

A service and role oriented access control model was proposed in this paper. In this model, the resource is combined and encapsulated as self-contained and assembled service in order to integrate, maintain and authorize resource conveniently. Role plays a vital role in getting user to connect with resource. Give a group of service to role, and authorize the role to user. Role value and role set value was introduced. A role value represents one and only one role, and a role set value represents one and only one role set. Whether the user has a legal access can be quickly judged based on the result of user role set value logical AND resource role set value.
Research on the New Trend in E-Commerce Industry: Mobile E-Commerce
Authors: Liu Yu Ling
Published: May 2014

As digitization, networking and information technology are the three main characteristics of the 21st century, e-commerce is growing at an unstoppable momentum and popularity worldwide development, which offers a global trading environment, greatly improves the communication speed, saves management links overhead and reduces the cost of doing business. The development of the Internet and wireless communication has brought a tremendous impact on our lives.With it’s rapid spread of mobile phones which has a function of Internet access features, people can connect the Internet to obtain information through a computer, a mobile phone to easily exchange communication anytime, anywhere by wireless. Because people need to work and live, and they hope they can send and receive e-mail anytime, anywhere to access news, stock information, order a variety of much-needed goods and that is the realization of the mobile e-commerce. So a new e-business models have emerged--mobile e-commerce, namely combine the use of mobile communication network and the Internet to make e-commerce activities, and is an important service to provide users with mobile Internet.
The Study of the Effects of Information Technology on Battle
Authors: Lan Zhi Huan , Ji Yi Guo , Feng Yu , Ning Cheng Da
Published: May 2014

The development of information technology into the areas of military technology which will impact importantly on the future battles. The comprehensive understanding and mastering the role of information technology in combat and combat theory which better the properties of information on command and control systems performance greatly improve the joint operational capability.
A CTCSS Approach to Mitigate Interference in VHF Cellular Network
Authors: Bian Yue Gen , Su Jing Huan , Song Xue Mei
Published: May 2014

The VHF radio can overcome line-of-sight transmission by “repeaters,” which pick up weak signals, amplify and retransmit them on a different frequency. However, repeaters can interfere with each other unless they are far enough apart or transmit on sufficiently separated frequencies. In this paper, we propose such a system using the continuous tone-coded squelch system (CTCSS) to mitigate interference problems. This system associates to each repeater a separate sub-audible tone that is transmitted by all users who wish to communicate through that repeater. The repeater responds only to receive signals with its specific tone.
The Application of BIM Technology to Improve the Installation Accuracy of Curtain
Authors: Zheng Sheng
Published: May 2014

With the rapid development of the domestic curtain industry and higher pursue that people have about the architectural aesthetics, curtain wall has developed into a good direction of multiple component and complicated modelling little by little. Especially for the hyperboloidal modelling, it has increased engineered difficulty. For solving many problems in the engineering construction, we have introduced BIM technology to make the complicated problems simplify. This paper took an example of a certain center curtain case in Shanghai to introduce the application of complicated curtain execution stage with BIM technology.
A 3D-FEA of Temporomandibular Joint with Reduced Curvature of Curve of Spee
Authors: Wan Ying Ming , Bi Ming , Wang Jing Yun
Published: May 2014

Temporomandibular joint (TMJ) is a weight-bearing joint[1],its biomechanical environment is closely related to bite force. Morphological characteristics of occlusal is an important guide to the bite force conduction. This conduction has an important impact on environmental stress in TMJ. Spee curve is one of the important morphological features of dentition,but study of its curvature changes in relations to joint stress is rarely reported . This study aimed to analyze stress distribution in TMJ when curvature of Curve of Spee decreased. In this study, two kinds of 3D model with diffirent curvatures of Curve of Spee were designed. Model 0: the normal, the curvature was 2.50mm. The vertex was at the cuspis of the second premolar. Model 1: the curvature was 0. Then analyzed by 3D-FEM. The final results validated that the anterior surface of condyle and intermediate zone of articular disc were the weight-bearing areas in TMJ. The stress increased along with curvatures of Curve of Spee decreased.
A Topology Aggregation Scheme in Multi-Domain WDM-TDM Networks
Authors: Quan Bi Sheng , Li Hui , Le Zi Chun
Published: May 2014

Topology aggregation is very important for multi-domain network. To deal with wavelength and timeslots constrains in multi-domain WDM-TDM networks, a topology aggregation scheme is proposed in this paper. The proposed scheme is based on asymmetric star with bypasses structure and comprehensively considers the information of multi-path between each border nodes pair. Results show that our proposed scheme obtains a better tradeoff between information accuracy and information reduction.
Algorithm Based on the Vertex Similarity of the Network for Detecting Community Structure
Authors: Zhang Chi , Xu Li , Liu Chang , Fan Chun Long
Published: May 2014

In order to quickly and accurately find the community structure of complex networks ,This article start from the similarity of the node ,Proposed a new community discovery algorithm. Introduced similar values and custom node value Q during the process of algorithm design ,Firstly , To Select the nodes with the largest similarity value by calculating the similarity between nodes ,Then to decide to join and expand the nodes by calculating the Q value is greater than 0 or not. Repeat the above process, you can get the whole network of community structure, The process does not require any auxiliary information or other seed nodes. Applied to the actual network experiment results verify the feasibility of the algorithm.
Finite Element Analysis Based on ANSYS of Bolt of Roof Bolter
Authors: Yuan Si Cong , Guo Xin , Wang Xiao Yu , Pei Xi Yong
Published: May 2014

The three-dimensional solid models of five different length and shaft diameter anchor of bolt were constructed based on ANSYS software, and making static analysis and modal analysis on it to obtain the stress nephogram and natural frequency of bolt. Research on the stress condition of bolt in static analysis. In modal analysis, researching on the effect regular of the change of length and shaft diameter size on the bolt transverse vibration, the longitudinal and torsional vibration of three natural modes of different frequency, providing a reference for the structure design and reasonable choice of bolt type for corresponding condition.
Image Background Removal by Contour Feature
Authors: Li Zhao Fei , Wang Jiang Qing
Published: May 2014

In the task of the image processing and analysis, the background noise removal is a important step. In the image background noise removal, there are many methods which is popular for the researchers. For example, the gray threshold methods are commonly taken to remove the noises which have large contrast to the interest objects. However, there are many noises with no variance with the interest objects in the gray level. For these noises, the gray level based noise removal method is totally futile, while the contour feature has its super performance for reducing this sort of noise. For the contour feature based image background removal method, the contour model is the key. This paper proposes a novel method for modeling the contour feature of the interest objects. With this method, a novel background noise which has the same gray level to the background noise is totally removed.
Intrusion Scenario Dynamic Correlation Algorithm Based on Single Value Causality Diagram
Authors: Zhang Chun You , Wu Xiao Qiang
Published: May 2014

In order to obtain the effective network intrusion alarm information, and reveal the intention of attackers, an intrusion scenario dynamic correlation algorithm is proposed based on single value causality diagram. According to the composition principle of single value causality diagram, the key factors of the cause and effect diagram are defined. By relating the alarm information of intrusion detection system, attack scenarios are constructed based on cause and effect diagram, and dynamic correction is conduct. Based on the MIT Lincoln laboratory data sets, the correlation test is done using the above attack scenario correlation algorithm. Test results show that the reconstruction of attack scenarios and actual condition have very good consistency, proving that the proposed correlation algorithm can correctly reflect the real hacker intrusion process. The research of this paper provides effective help for the security administrator to implement effective management measures.
LW Algorithm in the Application Research of Digital Blasting Vibration Signal Compression
Authors: Guo Tao , Xie Quan Min , Zhong Ming Shou , Li Yi Shan , Gao Ying
Published: May 2014

On the demands of real-time and effective transmission of a huge number of data in the construction of digital blasting vibration measurement information management system, lifting wavelet algorithm was introduced for blasting vibration signal compression. Interpolation wavelet, lifting db and traditional db wavelets were used for decomposition-threshold processing-reconstruction. Compression algorithm for the short-term and non-stationary blasting vibration signal was proposed, by analyzing the compression quality. Research results lay a favorable data processing basis for the construction of digital blasting vibration measurement platform and large network blasting vibration monitoring system.
An Investigation on Explosive Welding of Bimetallic Ribbed Panel
Authors: Duan Mian Jun , Wang Yao Hua , Hong Jin , Fan Cheng Fei , Ma Rui
Published: May 2014

In this study, a 316L stainless steel sheet and Q345R steel ribs are cladded to be a bimetallic ribbed panel which is hardly be manufactured by normal processing technique. There are three key sections in the fabrication process: the parallel arrangement, optimization of the explosive welding parameter and the template filling and stripping. The bonding interfaces of the ribbed panel are observed and analyzed by means of mechanical test and optical microscope (OM). It is found that welding interface is wavy, and the bonding strength is higher than that of base plate.
Terrain Real-Time Rendering Based on Projected Grid and GPU Unsaturated Error Metric
Authors: Yang Ying
Published: May 2014

To render terrain realistically and efficiently, we firstly introduce projected grid to construct terrain coarse meshes. Projected grid uses longest edge bisection, taking advantages of fracture eliminating, to implement triangle subdivision. To realize adaptive refinement of terrain coarse meshes, we introduce the concept of bounding sphere and the idea of unsaturated error metric, design GPU unsaturated error metric based on bounding sphere, in order to implement terrain LOD modeling finally. Experimental results show that projected grid avoids culling and improves the speed of terrain rendering, GPU unsaturated error metric can select terrain coarse meshes nodes accurately, reduce triangles number and keep terrain feature. As a result, the algorithm can achieve a high FPS and a good visual effect, implement terrain real-time rendering.