bluuebunny/crossref_metadata_2025 huggingface dataset:
Study of the Non-Dominated Sorting Genetic Algorithm for the Optimal Structural Parameter of the Tooth-Arrangement Multi-Fingered Dextrous Hand
Authors: Li Zhan Li , He Xiang Ting
Published: September 2013

Firstly, the structural parameter optimization of the tooth-arrangement multi-fingered dextrous hand is studied. Secondly, as to the shortcomings that the Pareto solution of multi-objective optimization was distributed unevenly in NSGA-II, a non-dominated sorting genetic algorithm based on immune principle is proposed. Lastly, the structural parameter of the medical tooth-arrangement multi-fingered dextrous hand is optimized using the proposed algorithm. The experimental results show that this algorithm can optimize structural parameter of tooth-arrangement multi-fingered dextrous hand very well.
Experimental Study on Mineral Processing of Carlin-Type Gold Deposits in Guizhou
Authors: Pang Wen Hao , Liu Quan Jun , Ding Peng
Published: September 2013

The gold ore which contained 4.73 g/t Au was selected from carlin-type gold deposits in Guizhou. Three experiments on the gold ore were carried out. They were direct cyanide leaching, oxidizing roasting-cyanide leaching and flotation-oxidizing roasting-cyanide leaching. The experiments revealed that with the third process, ideal production index were obtained. The optimum conditions were confirmed: combined collector ammonium dibutyl dithiophosphate dosage was 60 g/t and butyl xanthate dosage was 120 g/t. Sodium cyanide dosage was 7000 g/t. As a result, we obtained satisfying selecting targets: The grade of gold was 42.0 g/t in the flotation concentrate. The gold leaching rate was up to 96.18%, and gold recovery was 88.23% after cyanide leaching. It was of important effect on decreasing resources waste and reducing environment pollution to research the project.
Dynamic Building Tracking from UAVs Based on Image Manifold Learning
Authors: Zhang Peng , Ren Yuan Yuan
Published: September 2013

Fast and accurate visual tracking of ground buildings can provide unmanned aerial vehicles (UAVs) with rich perceptual information, which is very important for target recognition, navigation and system control. However, when an UAV moves fast, both background and buildings in visual scenes change relatively and rapidly. Consequently, there are no constant features for objects' appearance, which poses great challenges for visual tracking of buildings. In this paper, we first build an image manifold of buildings, which can encode the continuous variation of appearance. We then propose an efficient approach to learn this manifold and obtain more robust feature extraction results. By using a simple tracking framework, we successfully apply the extracted low-dimensional features to real-time building tracking. Experimental results demonstrate the effectiveness of the proposed method.
Development and Application on the Optimization Control System of the Gas Collector Pressure in Coke Oven
Authors: He Xue Jun , Gao Zong Ren , Zhang Jun
Published: September 2013

In view of the pressure control system of the large gas collector in coke oven, this paper puts forward a optimization control scheme of coke oven collector pressure intelligent decoupling control system. Using a variety of advanced control strategies based on the DCS , it develops a large coke oven collector pressure control system.The engineering application shows that the system design is versatile and effectiveness.
Research on Embedded GPS/GPRS Intelligent Building Security Technology
Authors: Di Ju Xing , Zhao Jian Guang , Si Ya Chao , Fan Jing Jin
Published: September 2013

This paper studied GPS location information of the collection, processing, GPRS data transmission network, intelligent building security system features. Based on this techniques, we designed an embedded GPS/GPRS intelligent building security system, which is composed of ARM9 microprocessor S3C2410, GPS/GPRS module and some peripheral devices. The system is running under Linux OS. The characteristics of the system are flexible, powerful, and high practicality.
Simulation Study on Dynamic Reactive Power Compensation of Grid-Connected Wind Farms
Authors: Wang Xiao Ming , Mu Xing Xing
Published: September 2013

With the Asynchronous wind generators as research object, this paper analyzes the problems of the voltage stability and the generation mechanism of the reactive power compensation during the wind farms connected operation. For paralleling capacitor bank has shown obvious defects, therefore this paper employs dynamic reactive power compensation to improve reactive characteristics of grid-connected wind farms. With the influences of different wind disturbances and grid faults on wind farms, wind farm model is set up and dynamic reactive power compensation system and wind speeds are built in the Matlab/Simulink software, The simulation result shows that they can provide reactive power compensation to ensure the voltage stability of the wind farms. But STATCOM needs less reactive compensation capacity to make sure the voltage and active power approaching steady state before the faults more quickly, Therefore STATCOM is more suitable for wind farms connected dynamic reactive power compensation.
Determine and Analysis of the Power Line Failures in Circuit Bridge Theory
Authors: Niu Shuang Guo , Niu Yu
Published: September 2013

A basic circuit bridge theory is used to determine a voltage ratio of the transformer winding, which can measure DC resistance, and determine or analysis of serveral fault cases in the power line and cable.
Study on Fluidic Gyroscope Zero Temperature Compensation Method
Authors: Mei Chuan Zhi , Piao Lin Hua , Zhang Bao Li
Published: September 2013

This paper had studied on the zero temperature compensation of fluidic gyroscope based on MEMS thermistor. Through the analysis of temperature characteristics of jet gyro sensitive element, two methods of comparison of zero temperature compensation was compared. Then, introduction of SCM and temperature sensor, to achieve zero temperature compensation for gyro output signal. The experiment shows: after compensation, zero voltage variation gyro reduced from 150mV to 10mV, working temperature range from room temperature to-40°C ~+55 °C. The fluidic gyroscope zero temperature compensated with zero drift is low, wide working temperature range advantages.
Design of Primitive Shell for Multi-Process Micro-Kernel Embedded OS on ARM
Authors: Qu Bo
Published: September 2013

This paper describes the design and implementation of primitive shell for an embedded OS in technical details, including creation of root file system on SD card, overview of the primitive shell, key techniques of implementing essential shell commands. The primitive shell is designed based on the multi-process micro-kernel embedded operating system on ARM developed by the author of this paper. The shell command files are designed simple and compact particularly suited for embedded related curriculum teaching as well as embedded operating system research.
RTDS-Based Simulate Analysis of AC Filters Switch Method in HVDC Converter for Voltage Stability
Authors: Zhu Xiao Jun , Chen Tao , Fang Wei , Qian Luo Jiang , Wen Yi Yu
Published: September 2013

In most of the AC-DC hybrid power transmission system AC filters is widely applied to stabilize voltage level in addition to filter harmonic. However, the voltage stability of AC bus is greatly influenced by action sequence of switching AC filters in group. The paper presents the concept of reactive characteristics of the convertor and AC filters, using reactive and voltage control mode to switch them. The modeling, control, and principle of operation for the AC-side switching filters are described. The voltage level is controlled via regulating action of switching filters by step. The salient feature of the proposed control modes is that voltage control contributes to keep the voltage level, and reactive control has no fast response on guaranteeing voltage stability, but two methods can apply to different occasions based on the requirements of voltage stability. All analysis and control system designs are verified through building a RTDS model in a typical ±500kV power system.
Research on Dynamic Characteristics of Large Span Transmission Tower in Icing Environment
Authors: Du Yue , Jiang Lan , Zhou Yu Xin , Li Qiao Rong , Wan Tai Ran , Pan Zi Jun
Published: September 2013

The transmission tower with a big span in the freezing area is very sensitive to climate. When extreme weather approaches, the tower may collapse easily. The dynamic characteristics of transmission tower structure vary under different weather conditions. This paper, taking a 500kV long span tangent tower as the research subject, will demonstrate the dynamic characteristics of such structures when the weight of wires, the icing stiffness of tower structure and the thickness of ice are considered. The results show that icing has a great impact on the dynamic characteristics of the tower structure and it can not be neglected. When the ice is thick, the contribution of icing to the stiffness of the structure should be considered. This conclusion can provide a reference for the analysis and design of similar towers in high altitude area.
A Novel 2-GS/s 12-Bit DAC in SiGe HBT Technology
Authors: Yang Yu Jun , Hu Rong Bin , Chen Jia
Published: September 2013

In this paper, a 12-bits DAC in 0.18um SiGe HBT process is presented. The DAC consists of a 4:1 MUX, standard input interfaces and LVDS output. The DAC consumes 1.8W power under a 3.3V power supply. The simulation results show that the SFDR of the DAC is 81dB, and the converter can be operated at a sampling rate up to 2GSPS.
Analysis of the Dielectric Loss in the Transmission Line Based on Time Domain BLT Equation
Authors: Wang Wan Jin , Xuan Zhi Wu
Published: September 2013

Dielectric loss is caused due to imperfect dielectric insulation, in order to study the impact of the dielectric loss consider a uniform loss transmission line with leak conductance. The BLT equation from the frequency domain to time domain is derived to improve the time domain BLT equation, and the aim of using the time domain BLT equation to calculate load voltage of the transmission line with transient signal source, through the calculation results to analyze the impact of the dielectric loss. The results showed that the attenuation of the terminal load transient response voltage occurred when the dielectric loss exists, and this effect is nonlinear.
Application of the BLT Equation for Radiation Field Calculation for Double Transmission Line
Authors: Xu Hong Zhou , Wang Wan Jin
Published: September 2013

By the excitation of the electromagnetic signal, double transmission line will inducing a voltage and current, thereby creating the space radiation field. Based on infinitesimal current source radiation field and by the convenience of the terminal response aspects of solving transmission line of BLT equation, the double transmission line is derived and gets the analytical solution.
The Application of ATCA Structure for Power Communication Switching System
Authors: Yin Hai Qing , Wu Wei Ning , Guo Jing Hong , Wu Jun Min
Published: September 2013

In order to meet the needs of the power communication device This paper discusses the key technologies of the power switching equipment based on ATCA structure, including network topology selection and rack management system, as well as a system performance test result is given. The test results show that the power switching equipment based on ATCA structure has good rack management ability, and it can monitor and adjust parameters such as system temperature. It can realize hot backup of the system, making the system with high reliability and high transmission bandwidth.
Optimization of Long Distance Natural Gas Pipeline Design Proposals Based on Multi-Objective AHM Method
Authors: Dong Feng Juan , Lu Xue Fei
Published: September 2013

the new method-AHM, and nine parameters which included diameter, delivery pressure, pressure ratio of the first station, pressure ratios of intermediate stations, number of stations, investment costs of pipeline ,investment costs of stations, investment costs of operation ,equivalent cost, have been selected to evaluate design projects of the long distance natural gas pipeline. The results indicate that attribute AHM matches other methods well. The calculation result of the example indicates that AHM method can get a good assessment result for the multifactor and multi-hierarchy complicated problems. The study provides a new method and technique for designers to select the technical feasible and economic reasonable design case, which has some theoretical and practical value.
A New Study of Assembly Scheduling Effective Constraint Method in Assembly Planning
Authors: Meng Yu
Published: September 2013

This paper establishes an assembly planning model combined with the actual assembly process of the complex equipment and based on the equipment characteristic & interactive features. Adding constraints model for complex assembly steps which ensure the assembly validity by the hierarchical constraint assembly drawing built through a detailed analysis of complex constraint relations between the blocks and layers. The fact shows that the model can effectively express the establishment of the assembly sequence based on the equipment level information and hierarchical constraint relations, and in order to achieve the assembly relationship the decomposition and timing, make the interactive process is simple and easy to operate.
Research on Automatic Compensation for Drop in the Concrete Mixing System
Authors: Fan Ai Long
Published: September 2013

The method of least squares and second-order prediction model are applied to carry out the compensation for weighing error of weighing sensors and static nonlinear error of transmitters and other hardwares in concrete mixing plant , so as to improve the measurement precision and expand the measurement range.The result indicates that the automatic compensation module for drop improves the measurement precision of weighing system.
Finite Element Analysis of Flow Distribution on Nozzle Array Fluidic Gyroscope Performance
Authors: Chen Jing Bo , Piao Lin Hua , Tang Jin
Published: September 2013

In this paper, the flow distribution in sensitive element of nozzle array structure gyroscope is analyzed. Using ANSYS-FLOTRAN CFD software, the finite element simulation is conducted by a series of procedures, such as two-dimensional model building of fluidic gyroscope, mesh, load applying and equation solving. The two-dimensional airflow distributions of nozzle array structure and normal structure gyroscopes are calculated. The results show that the highest velocity of nozzle array structure fluidic gyroscope is 0.71455m/s at the outlet, which is 47.6% of the nozzle velocity, and velocity is increased by 19.5% than the normal nozzle structure. By using nozzle array structure which can reduce velocity of vortex in sensitive cavity, promote airflow movement, increase temperatures changes and improve the sensitivity of fluidic gyroscope.
Research of Static and Dynamic Characteristic Simulation and Experiment for the Sliding Valve
Authors: Wu Rong , Yu Zheng Fei , Yang Ren , Chen Yan Jun
Published: September 2013

in the hydraulic and pneumatic system, spool valve is the spool component which is widely used in various types of control valves. Generally, valve spool, use fluid pressures as control signals, regulates the opening and closing of the pipeline, the pressure and flow of the system automatically. The spool valves static and dynamic quality impacts the system performance greatly. Researching its characteristic has practical implications to improve the performance of related products and optimize the system design. This article aims at researching the influences, on the static and dynamic characteristics of the sliding spool valve, caused by different structural parameters, through mathematical modeling, computer simulation and experimental tests.
A Method for Chinese Noun Phrase Recognition Base on Word Co-Occurrence Directed Graph
Authors: Liu Xing Lin
Published: September 2013

This paper proposes a recognition method for Chinese Noun Phrase based on word co-occurrence directed graph. An input document is firstly scanned in which noun word string is retrieved. Atomic word table and word co-occurrence directed graph is then generated according to the word strings. A search is performed on the graph to find the longest paths with priority weight satisfying certain criteria. The word strings corresponding to the paths are considered as noun phrases. As dimensionality reduction is applied, the scale of the word co-occurrence directed graph is reduced significantly, and thus the efficiency of the algorithm is improved. Experimental results demonstrate that the precision of noun phrase recognition reaches 95.4%.
An Interval Type-2 Fuzzy Cellular Automaton Model for Traffic Flow
Authors: Dong Jie , Zhang Xiao Mei
Published: September 2013

On the basis of Nagel-Schreckenberg model, this paper presents a modified fuzzy cellular automaton model for one-lane highway traffic. An interval type-2 fuzzy logic system is designed to evaluate the randomization parameter of a vehicle based on the spatial headway and speed difference. Some basic qualitative results and the fundamental diagram of our new model are got through computer numerical simulations. The experimental results show that our new model is able to reproduce some of the real macroscopic traffic characteristics such as stop-and-go waves, hysteresis and metastability phenomena.
Aggregation of Systematic Operational Capability of Armaments
Authors: He Xin Hua , Ma Yi Nan , Wang Qiong
Published: September 2013

Aggregation of systematic operational capability of armaments is significant for armaments systems' developing, constructing and using. As holistic avalanche and operational capability's nonlinear character of armaments systems, the feedback mechanism among capability indexes is researched and an aggregate method of systematic operational capability based on feedback mechanism is proposed on this paper, what's more, the method is proved effective by certain example of reconnaissance intelligence armaments systems' operational capability aggregation.
Equipment Support Training System Design
Authors: Wang Hui , Zhang Qin
Published: September 2013

This work describes the development of a novel equipment support training system. Differing from the traditional teaching panel method, the proposed method does not require any complex computations for coordinate transformation and is a simpler scheme. The proposed equipment support training system includes small equipment support training robots. The system specification phase determines the basic functionalities of the system, which can be described as a series of multilevel goals. Interface analysis is used to understand the input and output interactions between the system and the environment. The equipment support training system architecture, control board design and program flowchart are described and implemented.
Application of Earthquake Resistance Analysis Technique in the Design of Constructional Engineering
Authors: Gan Chun , Luo Xue Song
Published: September 2013

In recent years, frequent earthquakes have caused great casualties and economic losses in China. And in the earthquake, damage of buildings and the collapse is the main reason causing casualties. Therefore, in the design of constructional engineering, a seismicity of architectural structure is the pressing task at issue. Through time history analysis method, this paper analyzes the time history of building structural response and then it predicts the peak response of mode by response spectrum analysis. Based on this, this paper constructs a numerical simulation model for the architecture by using finite element analysis software SATWE. At the same time, this paper also calculates the structure seismic so as to determine the design of each function structure in architectural engineering design and then provides reference for the realization of earthquake-resistant building.
RFID Tag Area Management Base on IOT
Authors: Zeng Hao , Fu Yan Hui , Chen Xu
Published: September 2013

Traditional Radio Frequency Identification (RFID) Tag Equipment has some problems like these: it is difficult to realize if the tag is kept out, destroyed, or taken away abnormally. It cant accurately judge where the area the tag had moved to is. Besides, it is difficult to distinguish the right of the tag in the Tag Management. To solve these issues, this paper serves with a method which is based on the Internet of Things (IOT). It mainly includes as the following: the tag is activated in the Controlled Area, the judgment of the tag access the Controlled Area, whether the tag exists in the Controlled Area or not. These methods can reform the problems that the Traditional RFID Tag Equipment has.
Design of Surface-Wave Sustained Plasma Flat Panel Lamps
Authors: Wang Kun , Li Jian
Published: September 2013

Surface-Wave sustained plasma (SWP) source is a novel plasma source technology. It can generate large scale plasma at low pressure. SWP is fit for the plasma antennas because of exciting from one pole. The flat panel lamps are widely used in many fields. In this paper, a flat panel lamp is designed based on the Surface-Wave sustained plasma (SWP) source. The design blueprints are introduced and discussed. The design programs of single luminous surface and double luminous surfaces SWP flat panel lamps are introduced. The experimental apparatus is designed for the SWP flat panel lamps in the end.
C-Arm X-Ray Machine Guided Blocking Treatment of Lumbar Facet Joint Osteoarthritis
Authors: Li Liang , Zhang Li Heng , Zhou Yue
Published: September 2013

Our objective is to find a more exact treatment program in long-term treatment of lumbar facet osteoarthritis. We adopted a long-acting local anesthetic, hormone dubbed blocking solution, treated 34 patients suffered from lumbar facet joint osteoarthritis by blocking under C-arm X-ray machine perspective guidance. It was found that the puncture success rate reached 100%. The effective rate is (31/34) 91.2%. Followed-up for more than six months, 3 cases in 31 cases recured, and the recurrence rate was 3.2%. Complications of this method were only 2.94%. C-arm X-ray machine guided blocking treatment of lumbar facet joint osteoarthritis is economic, practical, conveniently operating and effective. It is an ideal treatment option for the treatment of lumbar facet joint osteoarthritis.
Near Field Electromagnetic Scattering Model Studying for Coarse Sea Surface
Authors: Gu Jun , Cai Kun , Liang Zi Chang
Published: September 2013

The simulated PM-spectrum fractal sea surfaces and the 3-D near-field distributed model of horn antenna are built, the near-field formulas of KA method are deduced. The near-field scattering coefficient and the Doppler echo signal of rough sea surfaces are calculated, the agreement with measured data proved the correctness and validity of the near-field scattering model.
Decision Models for a Car Rental Company with Two Types of Vehicles and Demand Substitution
Authors: Feng Tao
Published: September 2013

In this paper, we consider a car rental company who operates in two cities with two types of demand served by low quality and high quality vehicles. Two types of demand substitution, namely, supply side substitution and customer side substitution are modeled to investigate the optimal fleet size and transfer policy, accordingly.
Research on Water Trajectory to a Railway Tanker Based on High Pressure Water Jet
Authors: Meng Z.X. , Miao D.H. , Wang Z.M. , Qi Y.J.
Published: September 2013

Through analysis of water cleaning trajectory in a railway tanker, a mathematical model of cleaning process is set up. Then the actual cleaning trajectories are obtained, and cleaning rate of high pressure water cleaning to the railway tanker is analyzed. Simulations and experiments show that much water is saved and it also has a great significance to improve the cleaning efficiencies of cleaning device.
Study on Nonlinear Dynamics of Planetary Reducer
Authors: Han Xue Feng , Bai Yang , Li Ming , Jia Hong Guang
Published: September 2013

Based on nonlinear vibration theory and synthesizing harmonic balance method, numerical analysis method and reducer vibration test, the paper studies the characteristics of traditional systematic nonlinear dynamics. Based on harmonic balance method, the paper deduces the frequency response equation in the range of the whole frequency and studies magnitude-frequency characteristic. The accuracy of the model is verified by comparing with traditional model. Lumped mass method is used to construct nonlinear dynamics model of 2K-H planetary reducer drive mechanism in new hybrid cars double motor drive system. And the paper makes detailed and deeper analysis on response variation rules of the system and meshing stock state of gear pair with different parameters. Through the analysis of the relevant parameters, the planetary reducer is to have a more profound understanding, laid the foundation for future optimization design.
Numerical Study on Aerodynamic Design of Hypersonic Vehicle Forebody
Authors: Wang Fang , Gao Shuang Lin
Published: September 2013

The lift forebody configuration of a small hypersonic vehicle is designed by using the wedge angle method in this paper. The lift forebody created has been optimized by the simplex method with a penalty function. The aerodynamic characteristics of the forebody optimized are investigated by numerical method. The research results show that the wedge angle method is a high efficient way to generate the lift forebody of the hypersonic vehicle; On the design mach number, there is pressure leaking between the upper and lower surface of lift forebody, which leads to lateral flow in the spanwise on the precompression plane, and which create the unhomogeneity of inlet flow field; Adding side skirts on the both sides, which can reduce the lateral flow on the forebody's precompression plane, it can raise the forebody lift.
Test Method for Energy-Efficiency on Servers
Authors: Ge Chang Rong , Fang Xing , Tan Qian
Published: September 2013

Server refers to one special computer providing users with the management of resources and services. Opposed to an ordinary PC, server demands much higher stability, security, performance and etc., hence the hardware including CPU, chipset, memory, disk system, and network set is different from PC.
Short-Range Detection System with Polarized Laser and Polarization Characteristics of Typical Targets
Authors: Yang Yu Ying , Chen Hui Min , Chen He Jiao , Yang Yu Ying , Shao Yun Feng
Published: September 2013

In view of using only the intensity information of retroreflection light and poor capacity of anti-interference in laser short-range detection, this paper presents a short-range detection method based on laser polarization properties of targets, designs the polarization detection model and constructs the polarization detection system. Through the analysis and the comparison of data which is obtained from the polarization characteristic and intensity characteristic experiments of five different targets, the conclusion that the detection method based on the laser polarization characteristics can effectively distinguish target is achieved. Meanwhile, the analysis of detection model in this paper can also provide certain theory significance for further research on polarization detection.
Study of Magnetoacoustic Tomography with Injecting Current by Experiment
Authors: Huang Xin , Liu Guo Qiang , Xia Hui
Published: September 2013

Magnetoacoustic Tomography (MAT) is a new imaging method. MAT combines the good contrast of electrical impedance tomography with the good spatial resolution of ultrasound imaging. Magnetoacoustic Tomography includes Magnetoacoustic Tomography with magnetic induction and Magnetoacoustic Tomography with injecting current. In this paper we researched the later imaging method mainly; in paper we studied the parameters of AC power supply, which was injected to the imaging sample. At the same time, the waveforms of experiment were given and analyzed, which provides theoretical basis for the selection of power supply used in the subsequent experiments.
Cycle Properties of s-Vertex Connected Graphs
Authors: Ma Xing Bin , Liu Xiao Yan , Zhang Lai Liang , Lv Qiang
Published: September 2013

The cycle properties of-vertex connected graph are studied as follows pancyclicity and fully cycle extensibility. Two conclusions are drawn by way of argument: Let be a-vertex connected graph, if ,then is fully cycle extendable. Here the upper bound of is best possible. Let be a-vertex connected graph, if ,then is a pancyclic graph or .
Level of Repair Analysis Oriented on Integrated Materiel Support Based on BP Neural Network
Authors: Shen Ying , Shan Zhi Wei , Cao Jun Hai , Liu Fu Sheng
Published: September 2013

Level of Repair Analysis, for short LORA, is an integrated tradeoff technology and an important means that makes certain corrective maintenance support concept. Although by LORA it determines feasible, best efficient maintenance level or makes disposal decision for materiel repair, and affects design, life cycle cost and operational readiness of materiel, it is not mature for the development and application of LORA. In order to put the analysis technology into practice in deed, particular adapt to the need of integrated materiel support, on the basis of relative concept, principle and application of BP neural network in the paper, it discusses how to go on LORA in the context of integrated materiel support based on BP neural network, better to settle the problem of LORA.
R&D Model of Platform Technology for Digital Content Analysis Based on Numerical Simulation
Authors: Zhang Fu Jin , Shang Jie , Wang Bin
Published: September 2013

This paper studies the related problems which belong to research of digital content platform by using numerical simulation. Results from the research show that: the Nash-equilibrium is not the optimal outcome in the R&D competition. The government should pay attention to the continuity of investment. The larger the conversion rate of the user scale, R&D investment allowance rate and the foresight of companies are, the more the technology stock and consumer welfare are.
Visual Center of Gravity and Ratio of the Split Screen
Authors: Yao Pi Rong
Published: September 2013

the Divine Proportion has a dominant position in the picture composition; however, the picture perfect dichotomy screen out by its reasoning can not solve the massive distribution. In traditional quickly composition, due to the impact of 4:3 TV format, people are accustomed to the screen is divided into nine cells, because they are used by equipment manufacturers to provide the average split-screen "Well-shaped" dividing line; With the prevalence of 16:9 high-definition TV and panoramic photography, photography cameraman shooting 16:9, this average segmentation approaches have failed to provide the composition with the help of. If you are still using the Divine Proportion different screen geometry segmentation, we can draw a dividing line position proportion that is consistent with the Divine Proportion in line with the physiological visual center of gravity of the human eye: 28:44:28; The new segmentation photography cameraman will provide a more convenient and quick reference picture composition.
Complete Coverage Path Planning and Obstacle Avoidance Strategy of the Robot
Authors: Wu Jun Hui , Qin Tong Di , Chen Jie , Si Hui Ping , Lin Kai Yan , Zhou Qiang , Zhang Chi Bin
Published: September 2013

In order to solve the problems of complete coverage path and obstacle avoidance with the mobile robot, the complete coverage planning was described first, and then the algorithm of the complete coverage path planning was analyzed. The complete traversal algorithm and the obstacle avoidance strategy of the robot around the barrier were put forward. Finally, the traversal control flow chart of the traversal robot implemented in Single Chip Microcomputer (SCM) was obtained. After the above analysis, the algorithm was simple, practical, and low repeatability, and high efficiency. The algorithms could effectively solve the difficulty of complete coverage path and obstacle avoidance with the robot.
Vision Control System of Pipe Welding Robot
Authors: Tang Li Fang , Wang Chuan Jin
Published: September 2013

The author of this article designs a non-track automatic pipe welding robot, which mainly studies the image processing system of visual welding tracking. With the requirement of various interference noise and tracking accuracy in the welding process, this study adopts structure light CCD sensor checking system and image acquisition card processing images of computer software, in which sample filtering, edge checking, contour tracking, laser centerlines selection and checking of its characteristics. This processing method has the advantages of good effect and speedy processing that is able to meet the timely requirement of tracking system.
Design of Intelligent Access Control System Based on UWB Location Algorithm
Authors: Meng Xiang , Zhao Ying
Published: September 2013

The intelligent access control system based on UWB is designed in this paper. The system includes access controller, UWB reader array, electronic lock, power module, video capture modular and master computer. The access controller obtains the cards information by UWB reader array , the staffs position can be located by UWB location algorithm. By comparing with information obtained by video capture modular, the system can indicates that if there is illegal invader. The location accuracy can reach 0.5m and can identify accurately the invaders position. So the system can used widely in the place which requires fast walk.
A Comprehensive Test Compression Scheme Based on Precomputed Test Sets
Authors: Tian Zhi Jian , Zhao Fa Yong
Published: September 2013

To cope with increasingly rigorous challenges that large scale digital integrated circuit testing is confronted with, a comprehensive compression scheme consisting of test-bit rearrangement algorithm, run-length assignment strategy and symmetrical code is proposed. The presented test-bit rearrangement algorithm can fasten dont-care bits, 0s or 1s in every test pattern on one of its end to the greatest extent so as to lengthen end-run blocks and decrease number of short run-lengths. A dynamical dont-care assignment strategy based on run-lengths can be used to specify the remaining dont-care bits after the test-bit rearrangement, which can decrease run-length splitting and maximize length of run-lengths. The symmetrical code benefits from long run-lengths and only uses 2 4-bit short code words to identify end-run blocks almost as long as a test pattern, and hence the utilization ratio of code words can be heightened. The presented experiment results show that the proposed comprehensive scheme can obtain very higher data compression ratios than other compression ones published up to now, especially for large scale digital integrated circuits, and considerably decrease test power dissipations.
The Measurement of Cutting-Force during Compensating the Errors of NC Process
Authors: Zheng Dong Xi
Published: September 2013

Cutting-force error is the main portion of errors in the NC process, and the analysis of the cutting-force error is based on the measurement of cutting force. Introduced the detection method of cutting force, and analyzed the principle of cutting-force detection by detecting the current of servo motor.
Design of Dual-PWM VVVF System Based on ARM
Authors: Liang Jian Wei , Liang Ling , Han Shu Ren
Published: September 2013

The article, three-phase squirrel cage induction motor as the research object, introduces the design of a new dual-PWM VVVF system based on ARM. The rectifier link design control strategies based on the power of the inner power loop and outer voltage square loop control system. The inverter link design a double infinite loop vector control speed regulation system of torque, flux linkage to the inner ring, rotational speed to the outer ring a double infinite loop vector control . And then, to combine rectifier link and inverter link to build dual-PWM VVVF system. Focuses on realization of the control system software and hardware-based LPC2132 and μ C/OS-II. Gives the hardware design of the overall program, as well as software realization based on the hardware μC/OS-IIoperating system . Introduce some of the specific features of the program as well as hardware and software anti-jamming technology . Conduct simulation verification to the dual-PWM VVVF system. The results show that: The dual-PWM control system can realize better control effect.
Research and Design of Centralized Micro Soccer Robot's Decision-Making System
Authors: Wu Cui Qin , Wu Yin Feng
Published: September 2013

On the background of Mirosot Competition, this paper takes centralized micro soccer robot as research object. After structure research on soccer robot, it mainly focuses on studying decision-making system, which is the key part of intelligence realization. A stratified hierarchical motion control model from top to bottom is proposed. The motion control of soccer robot is realized based on Genetic algorithm path planning with grid modeling and Fuzzy-PID control method.
Indirect Adaptive Fuzzy H∞ Tracking Control with Self-Structuring Algorithm for a Class of Uncertain Nonlinear SISO Systems
Authors: Xu Sen , Wang Zhang Quan , Chen You Rong , Liu Ban Teng , Xu Lu Yao
Published: September 2013

Indirect adaptive fuzzy controller with a self-structuring algorithm is proposed in this paper to achieve tracking performance for a class of uncertain nonlinear single-input single-output (SISO) systems with external disturbances. Selecting membership functions and the fuzzy rules are difficult in fuzzy controller design. As a result, self-structuring algorithm is used in this paper, which simplifies the design of fuzzy controller. Lyapunov analysis is used to prove asymptotic stability of the proposed approach. Application of the proposed control scheme to a second-order inverted pendulum system demonstrates the effectiveness of the proposed approach.
Random Dynamic Analysis of a Crack in a Functionally Graded Materials Layer for Plane Problem Using Shear Stress
Authors: Zhang Hui Zhan , Zhang Jin Ling , Zhang Jia Zhen , Zhou Zhen Gong
Published: September 2013

Dynamic analysis is performed for a crack in a functionally graded materials layer for plane problem using shear stress. The material properties of the functionally graded materials layer vary randomly in the thickness direction, and the cracks are parallel to the materials faces. A pair of dynamic loadings applied on the elastic planes faces are treated as stationary stochastic processes of time. By dividing the functionally graded materials layer into several sub-layers, this problem is reduced to the analysis of laminated composites containing a crack, the material properties of each layer being random variables. A fundamental problem is constructed for the solution. Based on the use of Laplace and Fourier transforms, the boundary conditions are reduced to a set of singular integral equations, which can be solved by the Chebyshev polynomial expansions. The stress intensity factor history with its statistics is analytically derived. Numerical calculations are provided to show the effects of related parameters.
GPS Antenna Used in Tracking and Identifying Cargo
Authors: Li Yong , Zou Chuan Yun
Published: September 2013

In order to track and identify remote cargo with electronic label, the electronic label may carry GPS module. To GPS modules antenna, not only the factors such as impedance bandwidth and axial ratio bandwidth are considered, but also the stability of the phase center is more concerned about, due to it determines the precision and accuracy of location. At the same time it requires that axial ratio is less than 3 db in wide angle range of elevation theta. Realizes circular polarized GPS antenna through the orthogonal 4-fed mode and Wilkinson power splitters, in addition, calibrates and optimizes the average phase center of antenna through the optimization algorithm. The simulation results show that GPS antenna works in the L-band 1.575 GHz,impedance bandwidth in which return loss less than-10 db achieves 91.4 MHz,and coverages: 1.5358 ~ 1.6272 GHz; 3db axis ratio bandwidth achieves 305 MHz in the biggest gain direction of XOZ section;In the center frequency point 1.575 GHz, elevation theta which corresponds 3db axis ratio coverages: -119.2°to 111.5°; The stability of the phase center is less than 3 mm.
The Present Situation and Progress of Zinc Oxide Flotation
Authors: Cao Shi Ming , Zhang Xiao Lin , Zeng Shu Qin
Published: September 2013

This paper introduces the zinc oxide ore flotation process and flotation reagents; analyses the reasons why zinc oxide ore is difficult to concentrate; introduces new techniques of zinc oxide ore dressing; prospects the development trend of zinc oxide ore dressing.
The Method and Implementation of C3I Network Devices Monitoring
Authors: Cao Wen Bin , Chen Guo Shun , Niu Gang , Zhang Ya Jun , Bai Wen Ya
Published: September 2013

With the advent of the information age, the theory of network-centric operations come into beings. Network and network devices constitute the core of the C3I system which is the cornerstone of the network-centric operations. However, it is difficult to maintenance and support the C3I network devices for the reason of its specific features, such as its all kinds of models, wide geographical distribution, complex structure, highly reliability requirements and so on [. we propose a network device monitoring method to improve network equipment running reliability, real-time fault detection and save the utilization of network resources based on the existing method.
The Research of Flexible Testing System
Authors: Niu Gang , Chen Guo Shun , Cao Wen Bin , Zhang Ya Jun , Bai Wen Ya
Published: September 2013

For the purpose of solving the problems, such as many kinds of C3I equipment signals to be test, complicated technology and technology fast updates, a test system based on flexible technology is proposed. In this system, the core technical cocept of systematize and developmental design is adopt. In this paper, the design ideas, software and hardware design and test diagnosis process are described in detail. The detection system based on flexible test achieves calling testing resources according to the different objects, interfaces conversion and signal conditioning. The system has good characteristics on flexibility, reliability, adaptability and expand [1-, which is of great significance for the equipment maintenance and support.
Research on the Optimal Design of Soccer Robot Based on the Mechanical Analysis
Authors: Yang Song He , Chen Xiao Xin , Gao Zhi Bin , Huang Lian Fen
Published: September 2013

In this paper, we study the design and development of the system level simulation platform of TD-SCDMA, mainly introducing the design of power control simulation algorithms in multi-carrier cell mode which support mixed service model of UEs. The theory of power control by adaptive integer step-size is described in detail, and the simulation results in TD-SCDMA system level simulation platform with practical examples are analyzed. Taking simulation of power control by our way has certain practical significance.
Fuzzy Comprehensive Evaluation of Human Performance Management
Authors: Zhang Huan Cheng , Yang Ya Feng , Li Feng , Shi Li Nan
Published: September 2013

In the College, performance evaluation system is directly related to the harmonious development of the school. Taking into account the factors in the evaluation system is fuzzy, so this paper uses fuzzy comprehensive evaluation model. But the model is too subjective, so this paper combines neural network and data envelopment analysis method, which ensures that fuzzy comprehensive evaluation model is reasonable and scientific, and good school development and teacher self-interest. The performance assessment process, not only enables the combination of qualitative and quantitative analysis, but also fair and reasonably reflect the achievements of teachers, while this method is easy to use, wide application, and can be well applied in practice.
The Research of the Fabric Automatic Friction Ion Detection Device
Authors: Qiu Bo , Li Qing Shan , Zhang Shou Liang
Published: September 2013

In the thesis, through the testing methods of textile anion, comparing with the flat rubbing negative-ion device and the overhanging vibrating negative-ion generating devicein, it introduces a closed automatic friction device and analyses its testing principles and results. Through the analysis to show the scientificalness and the normativing of this testing device.
Recursive Backstepping Nonlinear Control and Sliding Mode Control of a Novel Hyperchaotic Finance System
Authors: Hu Pei , Cai Guo Liang , Yao Lan , Fang Xiu Lei
Published: September 2013

In this paper, the recursive backstepping nonlinear control method is proposed. Based on the Lyapunov theory, the controllers are designed to achieve the new hyperchaotic system globally, asymptotically stabilized at the equilibrium point. Furthermore, a robust control method combining backstepping and sliding mode control techniques is used to control the system to another equilibrium point. Numerical simulation results show that the proposed control schemes are effective.
Research on the Association Relationship of Information Industry Based on Structural Decomposition Analysis
Authors: Zhang Xiao Feng , Cheng Hao
Published: September 2013

The upgrading and optimizing of industrial structure is a significant choice for the developing countries. This paper arranges the input-output table of four departments from the input-output table of Shandong Province in 2002 and 2007, and analyzes the influence of information industry on other industries by using influence and sensitivity coefficients. In order to reflect the association relationship between information industry and others, we use Structural Decomposition Analysis (SDA) Model to analyze the relationship between the change of information industrial structure and the cause of the growth of total output, which is actually industrial association relationship based on total requirement. Furthermore, an empirical example is provided to illustrate the effectiveness and practicability of the proposed method.
The Research of CAS in the Enterprise Information Resource Integration
Authors: Zhang Zi Hong , Xue Da Shen
Published: September 2013

We use of CAS for business information resources to integrate theoretical analysis of the complexity and finish in a swarm of modeling and simulation platform model runs. In the analysis, we constantly adjust system, to observe changes in the simulation results. And finally we found for the system, that the higher the integration of the enterprises and market share on enterprises competitiveness has obvious advantages.
Security Early Warning Assessment Program of Hazardous Sources Based on Early Warning Information Processing Model
Authors: Jia Ling
Published: September 2013

The early warning can constantly improve the monitoring and management of the hazardous sources to realize advance prevention and control. Many early warning methods do not predict and imitate the hazard sequel and the early warning information in incomplete. This essay analyzes and studies the early warning process of the hazardous sources, hazard assessment techniques and analyzes the hazardous sources quantitatively and qualitatively. This essay combines effectively the imitation of the hazard sequel and the early warning technology, proposes hazardous sources security early warning procedure information processing system structure and designs models for processing early warning information of the hazardous sources, improving the early warning of the hazardous sources and increasing the accuracy and efficiency of the prior warning. Combining with cases, it performs imitation of the hazard sequel of leakage accident. Practices have shown that the proposed imitated early warning structure and methods are efficient. The imitation result is nearly matched with the fact. The early warning gets satisfied effect having certain practical value.