bluuebunny/crossref_metadata_2025 huggingface dataset:
Image Fusion Algorithm Based on Nonsubsampled Contourlet Transform
Authors: Luo Zi Juan , Ding Shuai
Published: September 2013

t is mostly difficult to get an image that contains all relevant objects in focus, because of the limited depth-of-focus of optical lenses. The multifocus image fusion method can solve the problem effectively. Nonsubsampled Contourlet transform has varying directions and multiple scales. When the Nonsubsampled contourlet transform is introduced to image fusion, the characteristics of original images are taken better and more information for fusion is obtained. A new method of multi-focus image fusion based on Nonsubsampled contourlet transform (NSCT) with the fusion rule of region statistics is proposed in this paper. Firstly, different focus images are decomposed using Nonsubsampled contourlet transform. Then low-bands are integrated using the weighted average, high-bands are integrated using region statistics rule. Next the fused image will be obtained by inverse Nonsubsampled contourlet transform. Finally the experimental results are showed and compared with those of method based on Contourlet transform. Experiments show that the approach can achieve better results than the method based on contourlet transform.
Experimental Analysis of Axial Load Internal Circulation Ball Screw Pair of Friction Torque and the Impact
Authors: Kang Xian Min , Wang Lin
Published: September 2013

According to the working principle of the ball in and out of the race in inner circulation and external loop, analyzed under the action of axial force of the ball in and out of the influence of the raceway for the ball screw friction resistance, due to ball in rail friction drag is small, that the inner loop no loss as external loop ball friction energy in the circulation pipe, friction torque variation of the ball in and out is small. Experimental results show that the inner loop of the ball screw's friction torque increases with the increase of rotational speed, but the amount of friction torque fluctuation is small, under the screw speed, the axial force has certain influence for inner loop ball screw's friction torque fluctuation and ball impact, but under the relatively high speed is not obvious of on the two.
Research of FMCW for Perfect Binary Sequences Pairs
Authors: Jin Hui Long
Published: September 2013

An improved FMCW auto-collision radar system is introduced. The system includes perfect binary sequences pairs theory, the method using auto-correlation functions to get target signal and measure distance, this enables itself to get constant development with theoretical progress. The new system only changes the program of signal generator a little, moreover it can be realized by DSP, which can reduce the false alert notably so as to be applied increasingly widely.
Key words: stepped-frequency modulation; multi-target detection; perfect binary sequences pairs
Time Sequence Clustering Based on Edit Distance
Authors: Zhou Hai Yan , Shan Jing Song
Published: September 2013

A time sequence clustering algorithm based on edit distance is proposed in the paper, which solves the problem that the existing clustering algorithms for time sequence data is inefficient because of ignorance of different time span of time sequence data. Firstly, the algorithm calculates the distance between time sequences on which a distance matrix is determined. In the second place, for a given time sequence set, a forest with n binary trees is established in terms of the distance matrix and then merge the trees. Finally, a cluster clustering algorithm is called to dynamically adjust the clustering results, and then real-time clustering structure is obtained. Experimental results demonstrated that the algorithm has higher efficiency and clustering quality.
The Research on Real-Time Pulse Signal Collecting System Based on CC2430
Authors: Xing Yu Xiu , Cao Yi , Zhang Wei
Published: September 2013

This paper introduced the system of real-time pulse signal acquisition based on CC2430.the original pulse signal was collected by projected pulse sensor, and then after shaping, filtering and amplification, we can get the pulse wave signal, which was stable and synchronized with the heart. After that this signal was input to the CC2430 chip, and reached the PC by ZigBee wireless communication, therefore the real-time monitoring from doctor to patient could be achieved. There were many advantages, such as simple, low power consumption, real-time coercion, etc. We can also expand the functional modules interfaces ,such as body temperature, ECG, blood pressure, to achieve the real-time monitoring more physiological parameters.
The Influence on Clustering Results of Electricity Load Curves Using Different Distances
Authors: Zhang Tie Feng , Lv Fei , Gu Rong
Published: September 2013

Distance choice is an important issue in power load pattern extraction using clustering techniques, so it is necessary to find the influence on clustering result of load curves using different distances in clustering algorithms. In this paper several distances are used in the k-means algorithm for clustering load curves and their influences on the clustering results are analyzed, therefore, the suitable distance for the k-means algorithms is obtained. An example with 147 electricity customers load curves shows distances have different influences on clustering results using the same clustering algorithm. The comparison results indicate that the choice of distances is an important issue in power load pattern extraction using clustering techniques and a suitable distance may improve the accuracy of mining algorithms.
Research on Mining Method of Process Knowledge Based on Ontology
Authors: Guo Chun Fen , Zhuang Li Chen
Published: September 2013

Making use of hierarchical structure clearly of concept model of ontology , on the basis of Apriori algorithm and introducing cross linker method, an mining algorithm of process knowledge of association rule is proposed based on ontology. To verify the feasibility of the algorithm, partial correlation process knowledge is dicovered by this algorithm.
Study on Reliability Assessment of Degradation Date Based on Pseudo Life Distribution
Authors: Liu Ai Li , Kou Fang Yong , Kou Kun Hu
Published: September 2013

In order to develop the reliability assessment of high-reliability and long-lifetime products, analyses for accelerated degradation test is discussed in this article. First, a method of building degradation path is presented; second, the means of degradation data processing is analyzed; finally, an example is presented and validity of this method is verified.
The Design of the Vacuum Circuit Breaker Contact Quality Detection System Based on FPGA
Authors: Yang Shou Liang , Bao Song Jian , Zeng Ling Gang
Published: September 2013

According to the characteristics of vacuum circuit breaker contacts infrared image, put forward a kind of easy hardware implementation of the dynamic threshold Prewitt edge detection and refinement algorithm. Using DSP Builder designed realtime vacuum circuit breaker contacts quality realtime online detection system based on FPGA and used hardware circuit simulation in Matlab and Simulink environment, the simulation results show this design method has many advantages: the edges fine, positioning accuracy high and truly reflect the physical boundary. Realized the vacuum arcing chamber contact wear realtime online detection function, the abrasion of the vacuum arcing chamber contact timely is displayed to monitor staff, and ensured reliable work of the vacuum circuit breaker.
Altering Integral Time Method in Temperature Measurement Using Mid-Wavelength Infrared Imaging System
Authors: Ji Yuan Yuan , Xu Wen Hai , Ma De Bin , Li Ying
Published: September 2013

Mid-wavelength infrared imager is widely used in the fields of security and detection with its unique band imaging characteristics, and it needs related studies of radiance calibration as to be used accurately and effectively. With the linear property of the infrared imager, which is the relationship between the input radiance and the output gray of the imager, the pupil radiance can be measured. Moreover, the surface temperature of the target in the image can be acquired combined with the surface characteristics. However, there is every possibility that the temperatures of the target change so much along with the day that it cannot be measured with just one linear field of the imager. This paper proposed an altering integral time method to measure temperature, which adapts to large temperature variations.
Research on Knowledge Acquisition Based on Improved Particle Swarm Optimization
Authors: Chen Xiu Hai , Jia Jun Bo , Li Xu Yuan , Wang Shi Ke , Zhao Ye
Published: September 2013

In order to solve the problem of knowledge acquisition in equipment fault diagnosis,the paper introduces a method based on improved particle swarm optimization. Firstly the paper transforms the nonlinear equations which describe the system into optimization problem with constriction. Since the equation is nonlinear and multidimensional ,standard particle swarm cant solve the problem due to the weakness of premature. So one improved particle swarm optimization is proposed. During the evolution, density evaluation, clone and mutation operator is proposed under the thought of immunity. The results of simulation show that the immune particle swarm optimization can simulate effectively and acquire the system knowledge.
Local Spatiotemporal Coding and Sparse Representation Based Human Action Recognition
Authors: Wang Bin , Liu Yu , Wang Wei , Xu Wei , Zhang Mao Jun
Published: September 2013

To handle with the limitation of bag-of-features (BoF) model which ignores spatial and temporal relationships of local features in human action recognition in video, a Local Spatiotemporal Coding (LSC) is proposed. Rather than the exiting methods only uses the feature appearance information for coding, LSC encodes feature appearance and spatiotemporal positions information simultaneously with vector quantization (VQ). It can directly models the spatiotemporal relationships of local features in space time volume (STV). In implement, the local features are projected into sub-space-time-volume (sub-STV), and encoded with LSC. In addition a multi-level LSC is also provided. Then a group of sub-STV descriptors obtained from videos with multi-level LSC and Avg-pooling are used for action video classification. A sparse representation based classification method is adopted to classify action videos upon these sub-STV descriptors. The experimental results on KTH, Weizmann, and UCF sports datasets show that our method achieves better performance than the previous local spatiotemporal features based human action recognition methods.
The Study of the Digital Three-Phase Phase-Locked Loop in the Photovoltaic Grid System
Authors: Lu Yuan , Song Xiao Ou , Lu Xiao Li
Published: September 2013

In order to track the phase of the voltage of the grid quickly and accurately in the photovoltaic grid system, a digital three-phase phase locked loop optimization method that can be completed by FPGA, which can lock the in a short time and adjust the power system voltage phase to the synchronization with the grid voltage. This design consists of three-phase phase detector, comparator and bit phase locking circuit. The principle of synchronous rotating coordinate transformation and lookup table of RAM are used to adjust the phase error more and more fine-tune. The adjustment of the phase is controlled by the waveform output of driver without analog circuit, besides the ability of anti-jamming is improved by the full digital designation and the dynamic characteristics is better. The system is simulated with MATLAB/Simulink and the given results show that this method greatly shorten the time needed for adjusting the phase difference. Obviously the precision of the system has been improved and then the effectiveness of the proposed method was verified.
Automatic Programming Based on the Feature of the Parts
Authors: Bao Mei Lian
Published: September 2013

The structure of machining workpiece is more and more complex, from the perspective of CNC machining, contains a lot of processing features generally. Machining feature plays an important role for production process for CNC machining programming, CNC code, as well as the analysis of clamping. Feature programming is one of the development trend of automatic CNC programming. This improve the efficiency of programming greatly.
Flexible Parallel Robot and its Experiment Models Used in FAST
Authors: Wang Wen Li , Cao Hong Jun
Published: September 2013

FAST (Five-hundred-meter Aperture Spherical Telescope) will become the largest single dish ever built in the world. The feasibility of FAST concept, including observatory location, active reflector and feed support has been proven by theoretical analysis and experiments. Results of study indicate that this project is ready to move on to preliminary design. In order to verify the design idea and the key technologies of FAST, the 5-meter experiment model, the 50-m experiment mode and the active reflector model have been designed and constructed. The experiment shows that the feasibility of FAST is been proven by theoretical analysis and experiments.
Analysis of Construction Machinery Hydraulic Control System
Authors: Zhang Li
Published: September 2013

This article analyses the use requirement of construction machinery, introduce the main features of typical construction machinery hydraulic system, derived power control modes of hydraulic system form hydraulic power form, compares the advantages and disadvantages of each power control mode, gives the optimization solutions, at last, sum up the full text of the construction machinery hydraulic power and control modes and prospect of the hydraulic system to precision control.
Research of Stepper Motor Control Based on SCM
Authors: Gong Qin Hui , Li Ting Gui
Published: September 2013

The control principle of stepper motor which is widely used at present has been analyzed. It adopts 8051 single-chip microcomputer to achieve stepper motor the pulse distribution control, acceleration and deceleration control in the four phase eight beat mode. This study has avoided complex circuit design, solved the stepper motor "step", "overshoot" phenomenon, promoted step motor to be more stable, faster response, more accurate positioning. This control which has the versatility can be achieved by modifying the corresponding circuit and related procedures for different stepper motor. The control which is flexible and convenient, low cost, has the very high use value in the practical application.
The Application of Wireless Sensor Network in Ocean Fishing Vessel
Authors: Chen Cheng Ming , Yu Li Juan , Cao Shou Qi , Ling Pei Liang , Yang Jin Song
Published: September 2013

A wireless sensor network (WSN) has important applications in many industries such as military, environment, healthy, home et al. This has been enables by the availability, of sensors that are smaller, cheaper, and intelligent particularly during the past few years. The design of a WSN depends significantly on the application, and it must consider factors such as the environments, the applications design objectives, cost, hardware, and system constrains. This paper constructs significantly the architecture of ocean fishing vessel WSN system, and briefly discusses existing problems of WSN technique and future research directions in application aspects.
The Energy-Saving Analysis of Cascade Speed Control and Frequency Control about Chopper Inner Feedback
Authors: Wang Zhen Fang
Published: September 2013

ntroduced the working principle and energy-saving analysis of cascade speed control system feedback chopping cascade speed control motor. The comparison of Inverter technology and chopping cascade speed control of the internal feedback technology.
The Research of Flight Control Algorithm of Flight-Sliding Type Inspection Robot
Authors: Yu Ping , Zhang Hu
Published: September 2013

In order to further optimize the methods of patrol and inspection in transmission line, Flight-Sliding type inspection robot is designed, which combines the advantages of Quadrotor and inspection robot. The robot has a flight and online inspection function. Due to overshoot phenomenon can not occur in the process of the robot flying to power lines and hanging, Fuzzy PID control algorithm is selected. The algorithm complies with the requirements of flight control. Matlab simulations indicate that Fuzzy PID control algorithm is effective in flight control of Flight-Sliding type inspection robot.
Boiler Make-up Water Treatment System Based on KingSCADA
Authors: Zhu Dai Shan , Wang Chun Yang , Lv Xu Hao
Published: September 2013

The technique process of boiler make-up water treatment is introduced briefly in the article. Combining with the practical production, a system based on KingSCADA and PLC is designed for the treatment of boiler make-up water. The traditional water treatment system is optimized. The modularization of the software design of the system disposition configuration, control points configuration, reports and trend curve and etc. were realized.
Discussig of Electricity Embedded Software Testing Technology
Authors: Zhang Wei , Ma Cai Xia , Niu Shuang Xia
Published: September 2013

Focusing on the feature of embedded software in power industry and to ensure its high reliability, the authors of this article introduced a comprehensive and effective testing technique based on the theory and practice of embedded test, with two phases: static test and dynamic unit test. It focus on the coding rule checking, quality metrics, analysis, flow control and data flow analysis and coverage analysis techniques.
Electromagnetic Identification Intelligent Vehicle System Design
Authors: Ji Yong Gang , Zheng Han Ming , Zhang Yan Peng
Published: September 2013

This paper introduces the electromagnetic identification intelligent vehicles hardware system design diagram and software design process based MC9S12XSl28 microcontroller, focusing on the design of intelligent vehicle power unit circuit, the electromagnetic signal amplification circuit, the motor drive module, gives a detailed schematic. Software design give a specific design flow, integrated hardware and software design constitutes intelligent vehicles overall system.
A Study of the Form Design of Household Medical Care Bed on Kansei Engineering Theory
Authors: Zheng Wei , Xie Qing Sen , Jiang Yan
Published: September 2013

What this paper studies is based on the attention people pay to the life and health, the medical industry development affects the consumption behavior of people, while consumption guides the product design of the medical-caring bed. With the method of perceptual engineering science, analyzing the perceptual characteristics of household medical-caring bed in actual cases and the emotional appeal of consumers to medical-caring bed, setting up the relational model between the perceptual image and appearance design of the medical-caring bed and providing the sample of the application of the perceptual technology in product design, which have certain reference value of the design of similar products.
The Embedded Soft PLC Development System Research of Numerical Control Machine
Authors: Hu Shi Jun , Zhang Hong Xiang , Chang Ying Jie , Li Jin , Li Chong Jian , Zhang Ling Ling
Published: September 2013

in order to make the embedded soft PLC technology used widely in CNC machine, on the basis of analyzing the advantages of the embedded soft PLC technology and system structure, we draft the test plan and research methods, and analyze the research results, which indicate that the embedded soft PLC development system can provide intuitive, convenient and efficient programming environment for users and realize the accurate control of NC machine function.
Studies on Web Game Interface Design
Authors: Chen Yu
Published: September 2013

WebGame translated into Chinese is "web game", "web game" user interface uses browser as direct media to communicate with game and users, which has big difference with interface design of other games. Web game has huge potential audience, it simplifies game experience process to the extreme. The industry has recently treats browser as a virtual operating system, which makes a better prospect for web games. We hope that we have come to effective principles and methods and can guide future web game interface design.
A MPTCP Path Selection Strategy Based on Improved Grey Relational Analysis
Authors: Kou Lan , Chen Si Rui , Wang Rui
Published: September 2013

Multipath Transmission Control Protocol (MPTCP), a transport layer protocol, proposed by the IETF working group in 2009, can provide multipath communication end to end. It also can improve the utilization of network resources and network transmission reliability. However, that how to select multiple paths to improve the end to end overall throughput, and how to avoid the throughput declining by the performance difference, become the focus of this study. We propose a path selection strategy based on improved gray relational analysis, and set the optimal values of the QoS parameters for the selected paths as the reference sequence. According to the value of improved grey relational degree (IGRD) which is compared with reference sequence, we select the paths with better performance, smaller difference for transmission.
A New Fragile Watermarking Based on Chaos
Authors: Huang Hui Fen
Published: September 2013

For existing airspace fragile authentication watermarking algorithm positioning accuracy and security issues, this paper presents a fully-fragile watermarking based on chaos for the integrity of the image content authentication and tamper localization. The algorithm uses the original image block, the calculation of each pixel in the image block high-bit gray value as the image feature watermark information. The chaotic sequence is encrypted and determines the position of the watermark bit is embedded watermark information, tampering with the positioning accuracy of an image block of 2 × 2 pixels. Experimental results show that the algorithm is simple, safe, with good practice.
A Non-Invasive Hardware Trojan Detection Approach Based on Side-Channel Analysis
Authors: Xu Xu , Li Xiong Wei , Zhang Yang , Xie Fang Fang
Published: September 2013

Aim at the feasibility of using electromagnetic emanation side-channel to detect hardware Trojan in IC chips, the structure of EM side-channel signal of chip is analyzed and the leaked model about signal is designed. With explaining the principle of Karhunen-Loeve transform, a method that uses KL transform to obtain characteristic signal of EM emanation side-channel is introduced. It detects hardware Trojan by analyzing the difference between the characteristic signal of chip with and without Trojan. Experiments of detecting hardware Trojan in FPGA cipher chip show that we can distinguish effectively the difference between the EM signals of Trojan chip and genuine chip, then the Trojan in chip can be detected.
A High-Capacity Mobile Storage Device Data Protection Scheme
Authors: Liu Ming , Wang Peng Fei , Wang Hong Yan , Meng Xiang Rui
Published: September 2013

This paper designs a data protection scheme for high-capacity mobile storage device which encrypts the data and keeps the data from being stolen and modified. Coupled with the use of SM1 cryptographic algorithm, the identity authentication mechanism has also been used, which secure the safety of the system.
Image Transformation for Digital Printing Machine
Authors: Yin Feng Ling , Huo Bing Quan
Published: September 2013

A computer monitor through mixing shades of red, green, and blue show pictures, that is named RGB color model. CMYK use the different color reproduction technologies and properties. A CMYK printer instead uses light-absorbing cyan, magenta and yellow ink. This paper discusses the conversion between RGB and CMKY color model. OpenCV was used for the verification of the effectiveness of the algorithm is proved to be feasible.
An Improved PSO Algorithm of Optimizing Selection for Multi-Objective Controller Parameter
Authors: Ren Yan Juan
Published: September 2013

For the same controlled process, different controller is radically different in control effect. Aimed at the puzzle of being difficult to select the controller for the incompatibility among control performance index, the paper proposed a sort of improved PSO algorithm. Based on the construction of objective function in multi-performance index parameter, the algorithm could quickly search and converge to control parameter in global optimal extremum corresponded to each controller and single out the controller through performance comparison excellently. In the paper, it took the controller selection of wastewater treatment system as an example, designed the algorithm of multi-modal HSIC controller of DO parameter, made the experiment of system simulation, and the simulation demonstrated that the HSIC controller could be stronger in robustness and better in dynamical and steady control quality compared with improved PID controller. The research result shows that it is reasonable and applicable to optimize selection of controller.
Design and Implementation of Human Resource Management Information System Based on Visual C++
Authors: Liu Ying Xin , Yuan Zhong Hu , Shi Wei
Published: September 2013

As science and technology are developing rapidly, management software in enterprises needs innovation. For enterprises, human resource management information system plays vital function in improving efficiency of management. The system uses Visual C++ 6.0 as development environment, selects Access as database, to realize the systematization, standardization and automation of personal management.
Design of 3D-TV Horizontal Parallax Obtaining System Based on FPGA
Authors: Yu Jia Xi , Zhang Wen Hui
Published: September 2013

In this paper, a design of FPGA-based 3D-TV horizontal parallax acquiring system is presented. The system will receive the stereoscopic video by a HD-SDI receiver GS2971, and outputs a video of horizontal parallax to a digital TV through a HDMI transmitter SiI9134. In this system, FPGA plays an important role that converts the stereoscopic video to the horizontal parallax video. In addition, a microcontroller is selected as the control center of the entire system. This system can get the horizontal parallax of the stereoscopic video in real time, and is helpful for the stereoscopic program producer to control the horizontal parallax of the 3D program.
Improved Analysis on Main Beam of the Double-Beam Crane
Authors: Luo Yu Hui , Lou Yong Ping
Published: September 2013

The double-beam crane main beam by a wide variety of steel welded, the structure is very complex. There are some problems that cause main beam deformation, such as the thin structure, needs to be improved. This paper combined with the finite element model of plate and beam to solve analytical challenges. Determine the dynamic load impact factor, the finite element analysis of the double-beam crane box-type structure of main beam, on the basis of the above, and the main beam finite element computer simulation reinforcement of the four program design and to compare. The strength of the best programs 38.7% higher than the original beam and stiffness 33.9% higher than the original beam.
Formation of Real-Time Wireless Sensor Network Based on CC2530
Authors: Zhou Dan , Xu Feng , Wu Li , Peng Shu Sheng
Published: September 2013

A real-time wireless sensor network (WSN) based on Zigbee technology is introduced in this paper. Sensing data, such as atmospheric pressure, temperature, humidity, orientation, illumination, wind speed and direction, can be captured in real time. It is designed with a RF MCU CC2530 and Zstack protocol of TI Corporation. The overall architecture of the system, detailed hardware design, and process of the system software are described in this paper. Experiment results show that this system operates stably, and has small delay, which will have a certain practical value.
GPS Time System and its Application in Time Transfer Technology
Authors: Xue Yan Rong , Li Xiao Hui
Published: September 2013

Time is the core of GPS satellite navigation system, and time service is one of the basic functions of the GPS system. The application of GPS technology in time service is more and more extensive, basing on its high accuracy, real-time, good continuity, low cost, etc.. In this paper, firstly, the building and maintaining of GPS time system is summarized, then GPS time service technology and GPS time transfer technology and their practical application in society is illustrated furtherly, secondly the prospects of GPS in time service technology and time transfer technology are discussed. With the development of GPS system performance and data processing technology, its application in time-frequency domain will widen continuously, which has important society significance for country's economic construction, national security and scientific research, etc.
Intensive Equipment Management of Enterprise Group Based on Internet of Things
Authors: Yin Xin , Dan Bin , Zhang Xu Mei , Liu Xiang Yu
Published: September 2013

The equipment management of enterprise group is taking an increasingly important role along with the rapid development of the enterprise. In this paper, the characteristics and problems of the equipment management of enterprise group were analyzed. A mode of intensive equipment management based on Internet of things was proposed by dividing the equipment of enterprise group into four categories.
Multi-Motor Agents Synchronous Control Based on Fuzzy PID
Authors: Yang Ji De , Wang Hui
Published: September 2013

This paper establishes two structural modes,one is the agent structure model of single-unit,the other is the multi-agent structure model of three motors.At the same time, it combines the multi-agent technology with the multi-motor synchronous control technology ,adds the multi-agent consistency control law into the existing fuzzy PID algorithm. It can control the three motor agent at the same time and simulates them. The result proves that the design compared with the fuzzy PID control can reach steady state faster.
Neonatal Nursing Information System Based on Internet of Things
Authors: Wang Dong , Ge Wan Cheng , Sun Li Ping , Li Jian Hua
Published: September 2013

A neonatal nursing information system based on Internet of things is proposed, according to the situation of neonatal nursing in the hospital. The system is a complex application making use of RFID, sensors, Zigbee, Wi-Fi and other technologies, which includes three sections: environmental monitoring of neonatal wards, neonatal information management, and traceability of neonatal information. The application of the system can reduce medical errors, avoid medical risks, and realize scientific management. It improves the level of management in the hospital.
Research and Application of DDE Network Communication in Configuration Software
Authors: Zhang Yin Juan
Published: September 2013

The network communication between MATLAB and configuration software is established using DDE(Dynamic Data Exchange) technology, which is easily to give full play to generate interactive interface in configuration software and simulation of control object model in MATLAB software. The calculation function of weakness in configuration software is repaired and the control object model and controller is to be isolated. The effective simulation platform for theory research and design of control system is established.
Research of University Laboratory Equipment Remote Monitoring System Based on RFID and ZigBee
Authors: Zhao Xiao Jun , Shen Jun Tao , Wen Ding Yi , Zhang Guo Qian
Published: September 2013

For the phenomenon of the college laboratory equipment mismanagement recent years, the RFID/ZigBee-based laboratory equipment remote management solution has been proposed. The hardware uses a ZigBee wireless network chip, an MSP430 low-power data processing chip and a WiFi data transmission module as the core, combined with various sensor and RFID technologies to perform information collection and transmission. The software is a web server developed in C# platform, using a three-tier structure to perform data storage, data access, and data processing. The experiments showed that it can perform communication between a monitoring terminal and a laboratory device timely and accurately, and achieve client integrate, and improve the efficiency of managing the laboratory equipment.
Research on Application of Tunable Dispersion Compensation Technology in Optical Fiber Communication Systems
Authors: Gai Wen Xuan
Published: September 2013

For high bit-rate optical communications system, the changes in temperature or power fluctuations are due to the dispersion of the dispersion tolerance than the system. Therefore, the dispersion compensation unit must have the functionality to adapt to the dynamic generation of tunable optical communication network development. This article describes several dynamic tunable compensation techniques and the basic principles of the performance characteristics of the situation at home and abroad, including the chirped fiber grating method, the virtual image phased array method, GT interferometer method, the array method and the planar waveguide grating method, and a brief discussion of tunable dispersion compensation technology in the future direction of development.
Research on DSP-Based Asynchronous Motor Control Technology
Authors: Qiao Xiang Xin , Li Guang
Published: September 2013

Motor in a variety of electrical transmission and position servo system occupies an extremely important position. After the DSP technology being applied to the motor control, the unification of the hardware and the flexibility of the software can be combined. Take the brushless DC motor for example, obtained the design scheme of the DSP-based asynchronous motor control system. With its 32 bit fixed point DSPTMS320F2812 as the core design of the hardware system, we wrote the system software, debug the motor control system and the results show that the system achieves the expected effect. The results of the research can be applied to brushless DC motor and other motor control, it will have a wide application prospects.
Research on Security in EMM Sublayer in TD-LTE
Authors: Li Mei Mei , Li Jing
Published: September 2013

Security in EMM sublayer is an important part of LTE security system. This paper is developed into three part: researches on Security Mode Command and Authentication process, introduction to key hierarchy and analysis on Integrity Protection and implementation of encryption / decryption.
The Ship Lean R&D Platform Based on Knowledge
Authors: Huang Jin Feng , Zhou Ji Shen
Published: September 2013

According to the present condition of ships design, draw lessons from and absorb design thought and technique of the maturity and the forerunner's ships, integrate to development means and design tool at present, put forward to the overall planning thought of the Ship lean R&D platform which is highly open, vivid, expansive and involved the whole ship lifecycle, set up the basic frame of terrace in the meantime. The platform with technique innovation, cooperation simulation and quality design for foundation, pays attention to accumulation and excavation of knowledge, support the integration and cooperation of core development business, and the full share of research resources with efficiently applied.
Informatization Construction of Vegetable Quality Safety Supervision in Agriculture & Supermarket Interfacing and Traceability Model
Authors: Ma Chen , Li Jin
Published: September 2013

This paper focuses on the agriculture & supermarket interfacing and traceability model, on the basis of quality safety traceability model, and in-depth analysis the information technology of origin traceability subsystem, processing sectors traceability subsystem and storage links traceability subsystem, etc.
Phytoremediation of Chromium and Lead Using Water Lettuce Pistia stratiotes L.)
Authors: Zhou Yuan Qing , Li Shu Ying , Shi Yun Dong , Lv Wei , Shen Tai Bo , Huang Qi Lin , Li Yin Ke , Wu Zhao Lu
Published: September 2013

Heavy metal pollution of water is of concern for human health and ecosystem. Under present investigation Pistia stratiotes L. (water lettuce) has been tested for removal of two important heavy metals chromium (Cr) and lead (Pb) from metal solution. This species was grown at four concentrations of Cr and Pb, i.e. 5.0, 10.0, 15.0 and 20.0 mg/L, respectively in single metal solution. This aquatic macrophyte has successfully removed up to 80% of Cr and 93% of Pb after 10 days. The bioconcentration factor (BCF) value ranged between 299 and 1026 for Cr and between 1672 and 1852 for Pb, respectively. The amount of BCF in Pistia stratiotes showed that removal of Pb was higher than removal of Cr. The accumulation of heavy metals was more obvious in the roots as compared to leaves. These findings contribute to the application of aquatic macrophytes to lead and chromium removal from moderately contaminated waters.
Analyses on the Current Status and Countermeasures of Equipment Manufacturing Industry in Jidong Economic Zone
Authors: Yan Shun Xi , Wang Xiao Lei , Yan Yong Lu
Published: September 2013

Jidong Economic Zone is an important economic growth pole in Hebei province, also the most dynamic region in economy. Equipment manufacturing industry is a main direction of industrial structures optimization and upgrading in Jidong economic zone, the share of the proportion of industrial added value increasing year by year. However, there are also some problems such as low enterprise clusters, poor comprehensive supporting ability, and lack of independent innovation capability. The paper summarizes the development characteristics of the equipment manufacturing industry at home and abroad. Then it analyzes the advantages of Jidong Economic Zone and makes strategic positioning for the equipment manufacturing industrys development. Finally, the paper puts forward some development strategies such as integrating into national policy, government supporting, promoting the enterprises research ability and developing industrial clusters.
The Removal of Heavy Metals by the Three Aquatic Macrophytes
Authors: Zhou Yuan Qing , Li Shu Ying , Lv Wei , Chen Yan , He Guang Hua , Xiao Hong , Shen Tai Bo , Shi Yun Dong
Published: September 2013

The present study deals with comparative evaluation of three different aquatic macrophytes, i.e. Myriophyllum spicatum, Sagittaria sagittifolia and Pistia stratiote planted at three different concentrations (1.0, 3.0 and 5.0 mg/L) of metals in laboratory experiment for Cd, Cu and Zn removal from aqueous solution. Result revealed high removal (>90%) of different metals during 15 days experiment. Highest removal was observed on 13th day of experiment, thereafter it decreased. Results revealed Pistia stratiote as the most efficient for the removal of selected heavy metal followed by Sagittaria sagittifolia and Myriophyllum spicatum. Selected plants can be used for large scale removal of Cd, Cu and Zn from waste water.
Numerical Investigation of Aero Engine Afterburner Fuel Manifold
Authors: Wang Ping , Liu Xue Shan , Lv Ying Jun , Xie Bin , Liu Guo Qing
Published: September 2013

In this paper, Method of CFD is used to simulate afterburner fuel manifold for aero engine, and investigate the relationship between the boundary layer of nozzle hole and mass flow. At the same time the numerical simulation of permitted maximum and minimum of nozzle hole was carried out and mass flow for calculation was also compared with the design value. The calculation results show the effect of machining quality of nozzle holes on mass flow of afterburner fuel manifold, for which the diameter of nozzle hole is so small that the effects of machining precision and boundary layer thickness on mass flow is very large. Therefore the jet fuel must be machined according to tolerance level I so as to ensure that the mass flow meets the design requirements. Investigation of boundary layer of small hole shows that only the boundary layer factors are fully considered, the numerical calculation accuracy may be enhanced.
Soil Resistivity Lightning Current Model
Authors: He Wei , Zhang Pi Cui , Wang Liu Ling , Ma Li Feng
Published: September 2013

Lightning protection dependents on the lightning current. According to the discharge characteristics of lightning current and the soil resistivity with different areas in Yunnan, the relationship between the earth resistivity and lightning current model was put forward. And comparison of the existing double exponential model, Holder model and impulse function model, then lightning parameters were analyzed. The soil resistivity model not only conforms to the lightning parameters measured in American, but also obtains the relationship among lightning current, the soil resistivity, the radius of the channel, and the response speed. The results provide fundamental theory for the research of lightning current.
Study on Adjustment Evaluation of Locomotive Affair Productivity Layout
Authors: Wu Jun , Jia Hua Fei
Published: September 2013

In order to evaluate the effect of locomotive affair productivity layout adjustment,based on the analysis and establish the maintenance productivity layout adjustment, on the basis of evaluation index system, build the evaluation model,and since 2006,in guangzhou railway group locomotive productivity layout adjustments as an example to verify the feasibility and the practicability of the index system and model.Results show that this model can better to evaluate the effect of locomotive affair productivity layout adjustment, has a certain significance.
The Establishment of Exergy Consumption Evaluation Index in Heated Oil Pipeline Transportation
Authors: Cheng Qing Lin , Li Zhe , Shao Shuai , Sun Wei , Wang Xu Xu
Published: September 2013

The exergy consumption during the transportation of heated oil includes four items: valid and invalid pressure exergy consumption, valid and invalid heat exergy consumption. These four parts are taken as the same loss in traditional evaluation systems of pipeline energy consumption, which somewhat hinders the further energy-conservation study. So establishing a scientific exergy consumption evaluation system is an important basis work of energy efficiency management. Based on the index system of energy efficiency for pipeline proposed by predecessors, the meaning of energy quality for exergy and the categories of exergy flow, the energy consumption index set of exergy transfer is set up in this article. Moreover, by computing exergy consumption index of exergy transfer for an oil pipeline in Daqing Oilfield, a part of representative indexes are selected by analyzing the obtained data with correlation coefficient method. Finally, the exergy consumption evaluation system is constructed.
Public Transportation OD Calculation Based on Trip Chain
Authors: Luo Lai Ping , Zhang Jing
Published: September 2013

Public transportation smart card system in China has been widely used in many cities recently. Large amounts of information implicit in the smart card, but it is not completely applied, because the information is incomplete, such as the information of getting-off bus stop. For this problem, a method is proposed to calculate OD (Origin-Destination) of smart card data. And it is well applied in digging the information of getting-off bus stop.
The Prediction of the Water Yield which Flood from the Pit and the Trait of the Hydrogeology which Existed in the Mining Area of the Zhujiabaobao Mining in Panzhihua
Authors: Liu Huan Rong , Yan Yong Feng , Yang Hai Tao
Published: September 2013

The aquiferous layer with interval of loose layer,aquiferous strip of weathering crack, the aquiferous strip of structural crack and aquiferous strip of rock bad been confirmed in this mining area by the analysis of the trait of the hydrogeology in the Zhujiabaobao mining, there is no connection of waterpower which emerged from the aquiclude of the pore, efflorescent crack and the tectonic crack, and which emerged form the crack aquiclude of the contact margin of rock and constitution is delicacy. The water yield which flood from the pit has been predicted by the computing methods of water balance and large-well, by the analyse and compare of them, it's found that the large-well method is more suitable to count it than the aqueous balance from the perspective of the drainage.
Optimization Research of Logistics Distribution Routing Based on Heuristic Algorithm
Authors: Lv Jie , Zhao Lin
Published: September 2013

Optimization algorithm of logistics distribution routing has been a hot area of research for several years. Due to the complex calculation and difficult to obtain exact solutions, the problem is a NP-Hard problem. Based on 73 customers sales and geographic locations of Y corporate, logistics distribution routing is optimize designed by nearest insertion heuristic and scanning algorithm.
Predicting Model of Container Throughput of Fujian Province Based on Grey Model
Authors: Li Fu Xing , Liu Qiao Jing , Chen Cai Ping
Published: September 2013

Port container throughput forecast is an important work for wharf project which is an important part of the port development strategy. In this paper, we introduce the optimized grey model and least square method of grey model. Furthermore, we make a forecast for the container throughput by using least square method of grey model and the result can offer the decision-making bases for relevant department.
The Study of the Regional Logistics Cooperation System Based on the Industrial Cluster
Authors: Xiu Xue Fang
Published: September 2013

The industrial cluster is a phenomenon in a certain area, where numbers of enterprises with close industrial relationship and their supporting organization cluster in space to produce a strong and continuous predominance within industry. The competition advantage and innovation advantage of industrial clusters dont come from aggregation of enterprises, but from the interaction between the main specific region and the collaboration both inside and outside of industrial clusters .The mode of cooperation of the regional logistics refers to improvement of industrial clusters competitiveness and development of modem regional logistics. From this angle, the paper proposes the basic function of regional logistics cooperation system accord to the features of industrial cluster so as to ensuring the industrial cluster to develop healthily and sustainability.
A Theory Model of the Existence Stable Measure for the Industrial Technology Innovation Strategy Alliance
Authors: Zhang Zhan , Qin Bo , Hu Wei Dong
Published: September 2013

This paper aims to establish a existence stable measure model. Use Alliance building, partner selection, the benefit and risk sharing, legal guarantee and policy guidance for one class index. Looking for data sources by Delphi method and questionnaire method and using the entropy weight method to Process those data. Through the model application can sum up the developing experience and provide reference for the Industrial technology innovation strategy alliances future development
Optimal Design and Experimental Investigation on Air Conditioner Piping System
Authors: Su Ka Lin , Zheng Zu Yi , Wan Jun Hua , Wan Zhong Min , Huang Chong Qing , Liu Jing , Wang Yi De
Published: September 2013

The virtual prototype model of air-conditioner piping system is set up based on ANSYS software, modal analysis and harmonic analysis is carried out on the model before and after modification. Some optimization is carried out based on the simulation and analysis results, comparing the two models before and after modification, simulation and the experimental results agree very well. It shows that the cost could be reduced and mechanical property is also good after optimization.