bluuebunny/crossref_metadata_2025 huggingface dataset:
Research of CNC Automatic Programming Method Based on Process Database
Authors: Tao Jian Hua , Fei Xiao Jun , Zhu Ming Ying , Liu Xiao Chu , Liu Hua
Published: December 2012

In this paper, a method of NC process information extraction and import to template file based on Process Recording Files and database was proposed, which provides an effective way for NC process information sharing and reuse, and made positive effect on current situation in CNC manufacturers, such as: type of product is relative stable, process of CAM programming has lots of duplication, process parameters are dependent on programmers, the processing quality is instable and so on. The Process Recording Files are from mainstream heterogeneous CAM softwares, such as: PowerMILL, UG/CAM, which used to record CAM programming process, macro files from PowerMILL and UG/CAM are belongs to this kind of file.
Statics Analysis for the Crossbeam of Large Gantry CNC Machine under Six Working Conditions
Authors: Deng Xiao Lei , Yang Wei Min , Wang Jian Chen
Published: December 2012

The crossbeam is one of the main supporting parts of large gantry CNC machines. The deformation of the crossbeam under loads at work has great impact on integrated machining errors of machines. However, the crossbeam assembly’s structure and the corresponding loads are so complex that it’s difficult to get them through experiences and analytic methods. In this paper, the FE statics analysis method is used to simulate and analysis of the crossbeam under six main working conditions, obtaining deformation and stress distribution of the crossbeam under each conditions. The results show that when the slippery saddle is at the middle of the crossbeam and the ram extends to 100% length (the distance between the end of ram and the bottom of slippery saddle is 1.29 m), the total deformation of the crossbeam assembly is 6.4914 × 10-5m, the maximum deformation is up to 3.4872 × 10-5m, and the maximum stress is 1.1882 × 107Pa appearing at the hole of the drive shaft. The design of the crossbeam can meet the work requirements well. And analysis results present a basis for further optimization analysis and structural improvements of the crossbeam.
Developing Size Specifications of 3D Body Models for Males Aged between 7 and 18
Authors: Choi Young Lim
Published: December 2012

This study aims to set the size ranges for male human body aged between 7 and 18, and to develop detailed body measurement criteria for each size. For that purpose, total 31 items were selected from the references of 5th SizeKorea Survey to carry out a statistical analysis, and they included 11 items for height, 15 for circumference and 15 items for length. Through the factorial analysis of those 31 items for body measurement, two dominant factors of obesity and height could be extracted as representative elements for body types. The circumference of waist was designated as the representative element for obesity factor, and the height as the representative element for height factor, and the size ranges were set to 3cm and 5cm intervals each for waste circumference and height. With two age groups of 7-12 and 13-18, the waste circumference and the height were cross-analyzed to decide high frequency sections, and based on this, the size ranges for 3D model development were decided. Lastly, detailed measurement specifications according to size ranges were developed through regression analysis. In this regression analysis, the circumference of waist was put as independent variable and the height as dependent variable. As a result, it was proved in this study that the circumference of waste was a strong element to explain obesity factor, and the height was to explain height factor in body measurement, and size specifications were developed according to different size ranges.
Analyzing Moving Character of a Novel Parallel Mechanism
Authors: San Hong Jun , Wang Yuan Ming , Liu Jian Xiong
Published: December 2012

A novel 3SPS/UP spatial 3-DOF parallel mechanism is studied. The studied mechanism is composed of a moving platform connected to a fixed platform by means of four actuated limbs. The three of the four limbs are SPS serial manipulators and the other one is UP serial manipulator. Each SPS limb consists of a spherical pair S connecting to the fixed platform, a prismatic pair P, and another spherical pair S connecting to the moving platform. The UP limb consists of eight Hoke joints U and a prismatic pair P. One side of the UP limb is connected to the fixed platform by Hoke joints U and another side is fixed to the moving platform. Moving character of this mechanism are analyzed by using the theory of screws. The moving platform of this mechanism have three translational DOFs
Forward and Inverse Position Solution Analysis of 2UPR/1SPR 3-DOF Parallel Mechanism
Authors: San Hong Jun , Wang Yuan Ming , Liu Jian Xiong
Published: December 2012

In this paper, forward and inverse position solution are analyzed for a novel 2UPR/1SPR special 3-DOF parallel mechanism. The moving platform of this mechanism have 1 translational DOF and 2 rotational DOFs. The inverse position solution of this mechanism was deduced by analytical method. The decoupling equation of position and posture parameters are formulated on the basis of structural constraint of the concerned mechanism. The forward position solution of this mechanism is achieved by numerical method.
A Hardware & Software System for Unmanned Ground Vehicle Control with Robotic Arm & Color Detection
Authors: Rahman Md. Saidur , Chowdhury Md. Shakar Ullah , Wazed Md. Abdul , Roshid Md. Mamunur
Published: December 2012

The main objective of this work is to develop a system consisting of Hardware and Software to drive Unmanned Ground Vehicle (UGV). UGVs are robotic platforms that are used as an extension of human capability. This type of robot is generally capable of operating outdoors and over a wide variety of terrain, functioning in place of humans. So it can be used in national defense to perform reconnaissance and strike missions in urban environments, and by civilian teams to conduct search and rescue operations in hazardous terrain. The software system is used to control the UGV through computer from remote place by using satellite; the software gives it the waypoint/path-location. The robotic arm is used to carry spy weapons or to pick objects for the collection of data or to rescue with the help of its own color recognition system. The system is working efficiently as directed with acceptable precision.
Path Planning with Motion Optimization for Car Body-in-White Industrial Robot Applications
Authors: Božek Pavol , Trnka Kamil
Published: December 2012

This paper discusses the problem of effective motion planning for industrial robots. The first part dealt with current method for off-line motion planning. In the second part the presented work is done by one of the simulation systems with automatic trajectory generation and off-line programming capability. A spot welding process is involved. The practical application of this step strongly depends on the method for robot path optimization with high accuracy, thus transform the path into a time and energy optimal robot program for the real world, which is discussed in the third step.
An Introduction to Parallel Robot Mechanism
Authors: Xue Zi Yun
Published: December 2012

With the dual relationship between parallel mechanism and serial mechanism on the structure and performance characteristics, the emergence of parallel mechanism, expand the areas of application of the robot. In this paper, a survey on the origin, main characteristics, field of application, and theoretical research of parallel manipulators are reviewed. Finally, some important problems of the parallel manipulator are mentioned to be solved.
Ant Colony Optimization Based on Local Optima Breaking Mechanism for Unmanned Vehicle Path Planning in Cross-Country Environment
Authors: Feng Ming Yue , Li Hua , Yuan Yi , Cao Jian
Published: December 2012

Intelligent vehicle is a preferable way for dealing with transportation problems. In cross-country environments, no apparent roads could be found, instead boscage, bumps and hollows, scattered materials make it hard to choose suitable paths. Path planning is a combinational optimization issue to find out a short path from many candidates. A combinational optimization algorithm was adopted to solve the problem. A multi-scale grid environment modeling mechanism was designed to model the unordered and irregular environment by a standard grid map. Then an ant colony optimization based algorithm was presented for finding out the most suitable path from the map. The algorithm introduced a local optima breaking mechanism based on early convergence judging process to avoid falling into local optima. Three criteria were designed for the process, say criteria of single grid, of static colony and of dynamic convergence. Feasibility and effectiveness of the method were verified by experiments.
Study on Data Detector of Synchro-Self-Shifting Clutch on Combined Diesel or Gas Turbine Power Plant
Authors: Tian Ying , Wang Ke Li , Zhang Yu Fei , Li Shu Ying
Published: December 2012

The failure of a synchro-self-shifting clutch, a key component in many power units, can lead to the loss of engine power, thereby the failure of the power plant as a whole. This paper introduces the hardware design and software development of SSS clutch data detector based on 16 Bite microcontroller of Motorola, it records the key parameters of SSS Clutch in real time, which can achieve the accident reconstruction and primary diagnoses of the highest possibility of a failure occurring, it is significant importance for research the highest possibility of a failure occurring prediction and fault diagnosis.
Parameterization of Emotion Expression through Robot’s Body Language
Authors: Sapsaman Temsiri , Benjawilaikul Teerawat
Published: December 2012

To enhance the human-robot interaction social robots have been developed with focuses on facial expression and verbal language. However, little to none has been done on emotional expression through robot’s body language. This work uses a parameterization method with human’s emotion theory and experiments to find robot parameters for expressing emotions through body language. Mapping is done on 2- and 3-dimensional emotion space, and obtained coefficients can be used to determine the influence level of motion parameters to emotion domains.
The Effect of Hexa-Orientation Press Control System Development on Diamond Material Grade
Authors: Hua Hong Yan , Zhang Zhen
Published: December 2012

The article has reviewed briefly the development of hexa-orientation press control system, and in introduces the application of industrial computer in the diamond synthetic press control system. It improves the precision of control and realizes automated process control by using PID closed-Loop to control electric current and using dynamic pressure to control pressure. It increases protection parameters, makes the system operate more stable and has very important impact on grade and carbide anvil consumption, at the same time reduces the technical requirements of operators. Finally the article introduces the development direction of hexa-orientation press control system.
Remote Monitoring System on Mining Visualization
Authors: Yang Yong , Li Yu Liang , Li Jing
Published: December 2012

This document explains and demonstrates how to realize all-side mobile monitoring system in coal face. The system is running in Yunjialing Mine, Jizhong Energy Resources, Handan, Hebei. In the paper first of al, we put forward the principle for system design. And then, we continue to explain the structure and function of the design. Finally, we analysis on the technology of the remote wireless video transmission.
An Exception Handling Approach for Service-Based Business Processes
Authors: Shang Zong Min
Published: December 2012

This paper proposes an exception handling mechanism for running reliable service-based business processes. With Smart Process-based Application Model that we have proposed, a smart process is generated automatically according to the execution of composite web services to better meet user’s individual requirements. However, the loosely-coupled nature of the smart process introduces more exceptions during its running. This paper will mainly focus on the failures of a smart process, and give an approach to handle exceptions. Based on Execution Transition Diagram(ETD) and several execution states we define in this paper, exceptions can be handled automatically by selecting rational transitions in the ETD during the execution of a smart process.
The Vehicles ESP Safe Test System Based on Aid Wheels Breaking Control Vehicle System
Authors: Zhang Lu , Wang Guo Ye , Yu Feng Zhu , Zhang Zhong Fu
Published: December 2012

The structure of the aid wheels braking control vehicle system is projected, and the system dynamic model is set up. Based on the Matlab/Simulink, establish the dynamic simulation system of the aid wheels braking control vehicle system for the Chery A3 car. Using the brake / drive integrated ESP control principle, based on the simulation model, respectively simulate and analyze the ESP control performances of the vehicle system and the aid wheels braking control vehicle system in different simulation conditions, under steer and over steer. The study results indicate that, based on the aid wheels braking control vehicle system, when there is no ESP control or ESP control system failure, the system can ensure the safety of vehicle effectively; and when with ESP control system, the ESP control performances of the aid wheels braking control vehicle system and the vehicle system have remarkable consistency. The aid wheels braking control vehicle system provides a basis for the vehicle stability control performance research.
Design and Implementation of Remote Monitoring System for UPS in Unattended Observation Station
Authors: Tian Xiu Feng , Zhang Xuan , Zhao Lin Lin
Published: December 2012

UPS (Uninterrupted power supply) is a basis for the observation equipments, and its reliability play a decisive role for the all tasks. Most of the observation stations are unattended, and their distribution is dispersive. So the maintenance of UPS is tedious and complicated, and it is difficult to achieve unified management and effective maintenance. In response to this situation, this paper proposes a UPS remote intelligent monitoring program. Through the monitoring data collection, remote data transmission, data output display and the control command transfer, this program can monitor the power supply capacity, load conditions and working status in the real-time, and achieve the function of automatic alarm and remote switch control. It completely changes the traditional decentralized management model and improves the level of scientific management of the UPS.
Quantum Artificial Bee Colony Algorithm for Knapsack Problem
Authors: Liu Zhen , Hu Yun An
Published: December 2012

The traditional quantum evolutionary algorithm takes a long time to converge and can be easy trap into local optima. In order to overcome and accelerate the speed of the convergence, a new quantum evolutionary algorithm is proposed in the paper. The proposed new algorithm named discrete quantum bee colony algorithm incorporate the basic idea of the artificial bee colony algorithm. The initial population can be initialized randomly using quantum encoded and the population can be formed by there parts and every subpopulation can evolve cooperatively. In the end, the individual will rated according to the multi-granularity mechanism and also rated according to the evolution condition. Simulation results of knapsack problems show that the proposed algorithm performs better than other algorithm.
Automatic Liquid Level Detection System Based on LabVIEW
Authors: Yu Lei , Liu Wei Na , Wu Hai Hong
Published: December 2012

This paper introduces the liquid level detecting system, using the laser displacement sensor to realize automatic measurement, using LabVIEW virtual instrument technology to data collection technology, network communication and database management technology are integrated in one system, has simple structure and design, strong universality, expanding the convenience and high efficiency of data transmission. Can be applied to different testing apparatus, the data acquisition system has good universality, is easy to embed other application testing system.
Study of Wheat Straw Weaving Process and Decorative Effect
Authors: Liu Bing , Wang Feng Hu , Liu Fu , Sun Jian Ping
Published: December 2012

Take full advantage of the natural luster of the wheat straw surface pleasing to the eye, fresh and natural, easy and pro-and texture, on the basis of the traditional weaving process, as a guide to modern art and design school, linear weaving straw art research and the use of modern aesthetic point of view of its weaving pattern design, explore traditional weaving skills at the same time, optimize the performance of straw handicrafts decorated, reliable optimization of design parameters and the overall theoretical basis for the new straw art and fiber art R & D and innovation, efficient use of straw raw materials and increase value-added products to explore new avenues.
Application of the PID Control in Mine Calorific Value Regulating System Based on PLC
Authors: Liu Xi Min , Wang Shu Qiang
Published: December 2012

This article introduced control principles of a mine gas mixing control system; and expounded the realization methods, the steps of PID control algorithm and parameter setting in the Step7 by using configuration control system of Siemens PLC. In the industrial control computer IPC, PLC and human-computer interface HMI centered control system that realized steady control of the calorific value, and it has preferable reliability, advancement and adaptability.
The Analysis on Motion in Quiescence of Packaging Container Molding
Authors: He Xi Zhong , Liao Da Zhi , Xiong Xin Jun
Published: December 2012

In order to understand packaging container molding design, it explored how to create visual motion feeling with an aesthetic viewpoint Motion in Quiescence from the basic function and structure of packaging container molding. In this paper, it analyzed the following as the barycenter and momentum of container molding, the dynamic feeling off horizontal and vertical, the dynamic feeling and the change of body structure, the dynamic modeling of ornament shape. And then it also discussed the following as the independence and relevance of local and whole shape of container structure, the coordination of molding form and perception, the common adaptability of molding means and form, which present study and design points for Motion in Quiescence of packaging container molding, and also put forward a art form and some state requirements on Motion in Quiescence for shape design.
Structures for Weakly Dependent Siphons of S3PR
Authors: Chao Daniel Yuh , Chen Jiun Ting
Published: December 2012

The authors discovered various properties of strongly dependent siphons. This paper develops the theory on the structure of weakly dependent siphons to investigate their properties.
The Design of Dynamic Response System Based on Digital Emergency Plan
Authors: Huang Wei Dong , Ding Bang Lan , Yan Li
Published: December 2012

For emergency dynamic response, the system structure of emergency response system is designed. On the basic of analysis of the structure of emergency plan process, the algorithm of outside push and pull back is designed to give out the mechanism of reorganization and reasoning emergency plan knowledge, by using the theory of relationship compound in the category theory. Taking the forest fire emergency response system as a prototype, the paper achieves the automatic generation of digital emergency plan, which effectively improves the applicability of the generation of emergency plan and the capability of knowledge sharing.
The Application Study of Multifunctional Injuries-Simulating Platform
Authors: Sun W W , Chen K , Xu X H , Mi M T
Published: December 2012

Conversing with the high quality life brought by high-tech, special occupational groups including the military personals were confronted with even more worse operational environment, such as extreme heat, cold, humidity, intense light ,typhoon or manmade meteorological disasters, and noise, low-illumination, electromagnetic radiation from the weapon. Working in such conditions, operation efficiency, visual-auditory function, brain function and the ability of mental adaptation would be injured. However, there has no professional research platform for simulating multiple injury factors. The multifunctional injuries-simulating platform were designed to simulate military operational environment by giving the modular regulation of the sound field, illumination, wind, temperature, humidity and so on. Meanwhile, with a serial successive biological experiment on military injury stimulating, the platform has proved to meet the demands of the whole design and has the potential to be used for the study of military medicine and occupational medicine.
Design and Implementation of Robot Soccer Communication Protocol Based on Ant Colony Algorithm
Authors: Liu Yun Long , Chen Zhen Zhen
Published: December 2012

Robot soccer is an effective platform which is used to validate techniques such as artificial intelligence. Due to the limitations of a single robot, complex tasks on pitch often need to be completed through coordination of multiple robots. The purpose of this paper is to realize the information transfer between robots and thus to achieve information sharing by designing the network communication system among robots, as well as to provide forceful support for robots' decision-making and multi-robots cooperation. Meanwhile, the ant colony algorithm,which comes after the realization of robot communication system, is introduced to solve the problem existed in multiple-robots coordination. Experimental results show that the communication system in this paper can effectively fulfill information transfer between robots and has laid a good foundation for cooperation of robots.
Research for Biofouling Detection Based on Optical Fiber Self-Referencing Technique and ANN
Authors: Ma Hui Ping , Guo Yu Bo , Jin Yuan Qiang , Yuan Feng
Published: December 2012

More attention is paid to on-line monitoring of biofouling in industrial water process systems. Combined optical fiber self-referencing technology with artificial neural networks (ANN) technology, real time detection technique for forming thickness and ingredient is put forward, which provides technical support and reliable data for analyzing biofouling influencing factors, contaminant separation and warning. Unclad fiber sensing mechanism and self-referencing fiber optic sensor are presented. Compensation technology based on radial basis function (RBF) neural network and learning algorithm are studied in order to solve the problem of measurement precision and range. Biofouling forming and optical characteristics in industrial real water systems are researched. A new method is provided for the research on biofouling in real water system, which can be used in other fields such as mining, environment protection, medical treatment and transportation of oil, gas and water.
Research on UCAV Communication Data Link Capability Increasing Scheme
Authors: Deng Li , Zhou Xiao Cheng , Ma Deng Wu , Zhai Hong Jun
Published: December 2012

UCAV data link capability is introduced on the paper. The special battle demand of UCAV data link is analyzed. Several schemes are put forward based on TCP to UCAV battle communication problem. They are compared on the paper and show the results. At last, the results are analyzed.
The Intelligent Design of Solar LED Street Lamps Based on MCU
Authors: Li Li Min , Zhang Li , Zhang Yu Feng
Published: December 2012

The design of the solar LED street lamps based on MCU , which combines the MPPT of solar cells with PWM improves the reliability of the operating system of solar LED street lamps and extend the lifespan of the lead-acid battery , It adopt a controlling method for battery discharging process according to SOC of battery and the signal output of different PWM at different stages only to make the intelligent development of the solar LED street lamps uniquely advantageous and enjoy the better prospects of wider application.
Design of Automobile Exhaust Wireless Monitor System Based on GPRS/GSM/GPS
Authors: Ye Zhen Zhou , Yan Jin , Lin Feng , Zhang Yi Long , Chen Hong Yan
Published: December 2012

For the problem of automobile exhaust emission pollution is more and more serious, according to the basic principle of non-dispersive infrared method(NDIR), we design a new kind of automobile exhaust wireless monitoring system with the existing GPRS/GSM/GPS technology. This system uses the three-layer structure of car-terminal, wireless network and PC monitoring center. We introduce and research the key technologies and methods of realizing the system. This system has the advantages of convenience and quick, good real-time, easy to manage and etc.
The Anomalous Threshold Voltage Prediction by Grey Model GM(1,1) for Submicron MOSFETs
Authors: Chen Shen Li , Shu Dun Ying
Published: December 2012

This paper proposes a new application to predict the anomalous threshold voltage (Vth) behavior in submicron MOSFETs by using the GM(1,1) grey system model. It can be developed to analyze the threshold voltage inclination due to the device geometric effects. The prediction results are compared with experiment data obtained from actual devices, we found that the different value of real experiment data and estimation data from the GM(1,1) is small and a good agreement has been obtained.
Simultaneous Synchronization and Anti-Synchronization of the Two Identical BVP Oscillators
Authors: Leng Jian Cai , Guo Rong Wei
Published: December 2012

In this paper, we investigate the synchronization and anti-synchronization of the BVP oscillator, and propose a same adaptive controller in form which not only synchronizes, but also anti-synchronizes the two identical BVP oscillators. Numerical simulations verify the correctness and the effectiveness of the proposed theoretical results.
A Mobile Computing SoC Design
Authors: Liu Xiang Wen , Liu Li Min
Published: December 2012

System on a chip, SoC, is an advanced technology of embedded systems. Mobile computing may support modern life style. Combination of SoC and mobile computing will produce a new product. In this paper, SoC, mobile computing and mobile computing SoC design are discussed. The mobile SoC can be used all mobile control fields, such as rescue, smart houses and mobile payment.
The Special Research on a Low Noise Amplifier
Authors: Yin Xin , Yao Yi , Jia Jin Ling
Published: December 2012

This paper studies a low noise amplifier design method for 5.8G wireless local area network. Using the software of designing RF circuit ADS(Advanced Design System) and Avago Technologies’s ATF-36077,we designed a three-cascade LNA. In 5.725G~5.85GHz range, noise figure less than 0.5dB, more than 30dB gain, input and output standing wave ratio less than 1.3dB.The LNA meet the design requirements.
Embedded Measurement Platform Design for Mine's Dynamic Weighing Bridge
Authors: Zheng Chuan Xing , Chen Jian
Published: December 2012

The measurement platform is the core front-end subsystem in mine's dynamic weighing bridge, which directly determines the measuring accuracy and reliability of the system. This paper presents a full digital embedded measurement platform. The establishment of the overall system structure and design of some important modules are described in detail. The platform has a "multistation structure" mode. The direction judgment is achieved by the staggered installation of weight sensors. The transmission performance is ensured with the application of RS485 serial interface. Compared to the traditional technology, this design is more simple in structure and flexible in network, which leads to a great reduction in the cost of equipment investment under the premise of performance assurance.
Moving Target Detection Based on Principle of Connectivity and Texture Gradient
Authors: Huang Min , Zhang Yang , Chen Gang , Yang Guo Feng
Published: December 2012

In target detection, “hole” phenomenon is present in the detection result, and the shadow is difficult to remove. To solve these problems, we propose a target detection algorithm based on principle of connectivity and texture gradient. Firstly, we use the connectivity principle to find the largest target prospects connection area to get a complete target contour, secondly we use target texture gradient information to further remove the shadow of the target. At last, the experimental results show that the algorithm can obtain a clear target profile and improve the accuracy of the moving target segmentation.
Shadow Detecting and Shadow Interpolation Algorithm for InSAS
Authors: Zhang Sen , Chen Ming , Tang Jin Song
Published: December 2012

The shadow detecting algorithm based on the coherence and the Sigma filter is used to pick up the shadow of interferometric synthetic aperture sonar (InSAS), which can eliminate small separated shadow areas. To solve the problems such as great computer complexity of traditional Shepard interpolation method and large fluctuant of linear interpolation method for the large shadow area, an improved Shepard interpolation method is proposed. Interpolation boundary is picked up by using diffuse search, and interpolation source is adaptively chosen according to the size of shadow area. The method carries out a perfect tradeoff between performance and computer speed. Lake trial dataset is used to validate the performance of proposed method. The results indicate that the proposed method can eliminate the fluctuant from the linear interpolation method and can process in real time in the InSAS system.
Design of the Spring Fixture for Aging Treatment
Authors: Wang Neng Wei , Huang Zai Chun
Published: December 2012

In this paper, the sizes of springs which were made of beryllium bronze QBe1.9 and the aging characteristics were analyzed, a set of design scheme of fixture was developed and the design process of the fixture was completed by CAD and Pro/E software. There were some fresh design features suh as a two-plate symmetry pressurized, the design of spherical head of the fastening bolts and different dimension and specification locating pins etc. The results showed that the design of the fixture structure was simple, reasonable and the designed fixture was easy to install and uninstall.
The Method of Feature Extraction of Weak Multi-Frequency Signals Based on the Array of Modulated Stochastic Resonance
Authors: Tu Shui Lin , Wu Zhen Yi , Wu Zheng Yang
Published: December 2012

The principle and implementation steps of the method of feature extraction of weak multi-frequency signal based on the array of modulated stochastic resonance under the background of strong noise are described in the paper. By the modulation of the known multi-frequency weak signals under the strong noise background and the carrieres with different frequency respectively; multiple signals with the same frequency of 0.01Hz were generated. Then these generated signals were as the input signals of multiple parallel non-coupled resonant units. The Runge-Kutta algorithm was used to obtain the unit outputs and to analysis the frequency spectrum. According to the SNR of the 0.01Hz to determine whether the 0.01Hz frequency components were contained in the frequency spectrum. Finally the frequency characteristic vectors of the weak signals were generated by the systemization of the detection results of the stochastic resonance units.Results show that this method has obvious effect in the extraction of the feature of the weak multi-frequencies signals, and has a very good application prospect.
Research on the Optimized Algorithms on Neural Network
Authors: Wu Xiao Qin
Published: December 2012

In order to overcome the disadvantage of neural networks that their structure and parameters were decided stochastically or by one’s experience, an improved BP neural network training algorithm based on genetic algorithm was proposed.In this paper,genetic algorithms and simulated annealing algorithm that optimizes neural network is proposed which is used to scale the fitness function and select the proper operation according to the expected value in the course of optimization,and the weights and thresholds of the neural network is optimized. This method is applied to the stock prediction system.The experimental results show that the proposed approach have high accuracy,strong stability and improved confidence.
A Novel Method to Estimate the Unknown Mixing-Matrix for Blind Source Separation
Authors: Chen Ning , Zhang Hong Yi
Published: December 2012

The blind source separation (BSS) using a two-stage sparse representation approach is discussed in this paper. We presented the algorithm based on linear membership function to estimate the unknown mixing matrix precisely, and then, the optimization algorithm based on integral to get the max value of the function is proposed. Another contribution described in this paper is the discussion of the impact of noise on the estimating the mixing matrix. Given the impact of noise, we set weights to put more emphasis on the more reliable data. Several experiments involving speech signals show the effectiveness and efficiency of this method.
A Framework for Life Cycle Cost Estimation of a Product Family at the Early Stage of Product Development
Authors: The Jaya Suteja , Yarlagadda Prasad K.D.V. , Karim M. Azharul , Yan Cheng
Published: December 2012

A cost estimation method is required to estimate the life cycle cost of a product family at the early stage of product development in order to evaluate the product family design. There are difficulties with existing cost estimation techniques in estimating the life cycle cost for a product family at the early stage of product development. This paper proposes a framework that combines a knowledge based system and an activity based costing techniques in estimating the life cycle cost of a product family at the early stage of product development. The inputs of the framework are the product family structure and its sub function. The output of the framework is the life cycle cost of a product family that consists of all costs at each product family level and the costs of each product life cycle stage. The proposed framework provides a life cycle cost estimation tool for a product family at the early stage of product development using high level information as its input. The framework makes it possible to estimate the life cycle cost of various product family that use any types of product structure. It provides detailed information related to the activity and resource costs of both parts and products that can assist the designer in analyzing the cost of the product family design. In addition, it can reduce the required amount of information and time to construct the cost estimation system.
Yawning Detection Based on Mouth Feature Points Curve Fitting
Authors: Ding Wu Yang , Zhang Ling , Chen Yun Hua
Published: December 2012

A yawning detection method which can be used in drivers’ fatigue monitoring is proposed. To adapt to the variance in different mouth shapes and sizes, it based on mouth inner contour corner detection and curve fitting. First, the Harris corner detection algorithm was used to detect inner mouth feature points. Second, we established the open mouths’ mathematical model by curve fitting those points, calculated the degree of mouth openness using the mouth model, and generated the real-time M-curve. Third, the duration of big openness in successive images is divided into levels for further judgment. The validation results show that the method can obtain more precise mouth parameters and distinguish yawn from complex mouth activities. So the method achieves a higher level of accuracy.
Cartoon Avatar Processing Based on Image Edge Detection
Authors: Zhang Yin Shi , Sun Li Ming , Shen Xiao Hui , Zhou Yang , Li Yue , Wang Wei
Published: December 2012

Currently, face recognition plays an important role in many applications ranging from access control, suspect identification to automatic target recognition. Compared to these mature face recognition techniques, another kind of similar technique, which transfers human faces to abstract cartoon faces, is currently neglected until recent years. This paper mainly presents the approach on converting real face photos to cartoon pictures. In this paper, edge detection methods are used to for face and feature recognition, and feature-based sense organs matching methods are also developed for cartoon avatar generation according to facial feature correlation of the cartoon image galleries.
The Application of Bezier Curves about the Visualization of the Threaded Binary Tree
Authors: Yang Xiao Bo , Chen Bang Ze
Published: December 2012

In view of the characteristics of threaded binary tree and visualization of the problem,,it is realized the visualization of binary tree by using object-oriented method and the features of complete binary tree, and then achieved the visualization of threaded binary tree by using the COM component technology and the Bezier curve. This makes the tree related operations more intuitive, nice interactive performance, real-time.
Research and Design of the Automobile OBD Data State Monitoring System Based on the Android Phones
Authors: Huang Wei Dong , Zhang Yue , Liu Jun Hong
Published: December 2012

This system get the automobile status data and GPS location information by the Android phone with the automobile OBD + ELM327 Bluetooth to communicate; On the one hand, through the Android mobile terminal display, and at the same time these data uploaded to a remote server through the 3G network. This system can become a substitute for expensive automobile terminal, but also can become a automobile fault detection, effectively reducing the cost..And at the same time , GPS positioning and remote server can make the car operating units to monitor the failure of the automobile and to optimize the scheduling of automobiles.
Fidelity Evaluation of Bridge-Type Grab Ship-Unloader Visual Simulation
Authors: Lu Hou Jun , Chang Dao Fang , Liu Xi
Published: December 2012

Visual simulation's fidelity is used to verify the similar degree of simulation system that simulates real word. How to improve the similar degree of visual simulation is the key way to meet the simulation performance. Based on the F-AHP method, this work establishes the evaluation model of visual simulation fidelity of bridge-type grab ship-unloader, giving determining method of evaluation indicators, establishing membership function of each indicator and determining the weight. Finally, the case study is taken to illustrate how to evaluate a specific visual simulation with the method proposed in this work, and the evaluation result shown the fidelity of the virtual scene we gave is not so well.
Scene Simulation of UUV’s Glide Motion Based on Creator and Vega Prime
Authors: Zhang Peng , Song Bao Wei , Du Xiao Xu
Published: December 2012

The 6 degree of freedom glide motion equations of the unmanned underwater vehicle (UUV) was built. Than the scene simulation system of AUV was designed based on the Creator and the Vega Prime. The results show that the simulation system simulates well the 6 degree of freedom glide motion of the UUV, and some key technology of the UUV scene simulation system was solved.
The Study of Military Conceptual Model Based on Tactical Decision-Making Simulation
Authors: Liu Jin Guang , Wu Zhi Fei
Published: December 2012

The military conceptual model (MCM) provides an unambiguous and credible reference for the development of the combat simulation system. According to the characteristics and regularities of the tactical decision-making (TDM) process, this process is divided into five abstract stages, which analyze the modeling method of the simulated military conceptual model in detail. This method reduces the common attributes and action of the TDM entity to that of a super one, which avoids the appearance of a multi-inheritable complex construction. Then the super TDM entity is analyzed so as to obtain a description of its properties and action. By summing up the functions of the TDM simulation entity, it can point out that this modeling method has very strong feasibility.
An Approach of Web Service Discovery and Composition Based on Logic Petri Nets
Authors: Deng Shi Yang , Du Yu Yue
Published: December 2012

A new model is proposed based on logic Petri nets for web service clusters. The service parameters of a cluster are unified and logical expressions are introduced to represent the indeterminacy of service clusters. A service cluster can be used as an integrated unit and parameter matching can be decided based on semantic similarity and logical inference in a service cluster. Some algorithms of web service discovery and composition are given based on logic Petri nets, and the redundant services are removed from service compositions by a backward method. The availability and efficiency of the proposed approach are illustrated by the experiments with large repositories of different sizes.
ZigBee Technology Application in Disaster Rescue
Authors: Jiang Feng , Zhao Wei
Published: December 2012

In the scene of disaster rescue, there are usually many potential hazards. How to guarantee the safety of the Rescue Personnel and the rescue efficiency is a problem that deserves our concern. From the perspective of rescue security, this paper explores a new program that adopts ZigBee technology in disaster rescue. By making use of ZigBee technology's features of high-reliability and low-complexity, it can make the gas acquisition module, image acquisition module and human detection module to form a wireless sensing probe network and then realize the environmental monitoring of disaster site and disaster victims searching and rescuing. In this way, it can overcome its previous shortcomings, such as poor real-time detection network, difficulty in wiring, etc. and thus to achieve the purpose of efficient early warning and rescue.
The Research of Railway Passenger Flow Prediction Model Based on BP Neural Network
Authors: Wang Yao , Zheng Dan , Luo Shi Min , Zhan Dong Ming , Nie Peng
Published: December 2012

Based on analyzing the principle of BP neural network and time sequence characteristics of railway passenger flow, the forecast model of railway short-term passenger flow based on BP neural network was established. This paper mainly researches on fluctuation characteristics and short-time forecast of holiday passenger flow. Through analysis of passenger flow and then be used in passenger flow forecasting in order to guide the transport organization program especially the train plan of extra passenger train. And the result shows the forecast model based on BP neural network has a good effect on railway passenger flow prediction.
Objects Collision Detection in Virtual Scene
Authors: Zhang Rong Guo , Wang Zhi Fang , Liu Xiao Jun , Liu Kun
Published: December 2012

An algorithm of two stages collision detection is presented for moving objectives in virtual scene. Firstly, AABB bounding box was used to test the intersection of interesting objects in coarse detection stage. Then combining space projection with Z-buffer algorithm, the potential intersecting objects in previous step were tested in precision detection stage, thus we can obtain objects collision data information and complete object collision detection. Finally experimental results show that the algorithm is more efficiency than traditional bounding box detection, the improved technology can realize further accurate collision detection.
Optimization Design of Shading Shed Transmittance in Highway Tunnel Entrance
Authors: Zhang Guo Chun , Bai Han , Liu Hao Xue , Zhang Bin Hua
Published: December 2012

Shading shed transmittance of highway tunnel entrance should be designed to be compatible with the driver visual characteristics. By using qualitative and quantitative analysis methods, change law between pupil area and illumination was found through driver visual characteristics experiments in tunnel entrance. Optimal design algorithm of shading shed transmittance in highway tunnel entrance was established. Nanwutai tunnel on Baotou to Maoming highway are selected as research case to prove the model. The results of this study provide evidence that the model has obvious superiority.
Simulation and Analysis of AUV’s Hydrodynamics when Moving in the Near-Seabed
Authors: Zhao Fang Ze , Song Bao Wei , Du Xiao Xu
Published: December 2012

When the AUV is executing detection, reconnaissance and other job tasks, AUV will moving in the near-seabed. And the flow field due to the seabed boundary effects become extraordinarily complex when the AUV moving in the near-seabed. In this paper, we will carry out some research about hydrodynamics simulation and analysis when the AUV is moving in the near-seabed.The model of flow field when AUV moving in the near-seabed was introduced and the dividing grid process was presented. At last the AUV’s hydrodynamics were simulated.
Research of Digital Simulating Model of Assembling Shunt Capacitor
Authors: Xiong Jun Jie , Sun Min , Fan Rui Xiang , Ding Tao , Qian Luo Jiang
Published: December 2012

The paper describes numerical base of user defined component model (UDC) for real time digital simulator (RTDS), gives applied method of UDC technique combined with user defined steps of assembling shunt capacitor (ASC), compares transient simulating results of ASC UDC with models from RTDS library, and demonstrates UDC possess higher simulating efficiency and simulating quality is not decreased.
Study on Network Emergency Evaluation with Web-Based Information
Authors: Wang Chuan Mei
Published: December 2012

Efforts to develop evaluation of networking emergency have been hampered by many obstacles. With the observation of network users’ browsing actions, the implicit feedback of the online people can be obtained based on the Web information. With the analysis of the formation of network emergency and users’ Web browsing actions, the users’ feedback information can be gotten. Based on the classification and summary of the feedback, the monitoring and evaluation index system of network emergency is set up. Furthermore, the structural model of variables effect network emergency for the emergency evaluation is established, and the empirical method for monitoring and evaluation network emergency is put forward. Empirical analysis shows that the index system and the model are reasonable. The work is of important meaning to the realization of monitoring online public security management and network emergency early warning.
Intelligent Voice Terminal with Image Retrieval Function
Authors: Wei Zheng Xi , Liang Jin Ming
Published: December 2012

In recent years, voice terminal products show the intelligentized trend. This paper presents an embedded design method of intelligent voice terminal based on pattern recognition. The design adopts Samsung S3C2410 ARM as target board, Philips Uda1341TS as audio codec, embedded Linux OS as software platform, and speech recognition is implemented through small-vocabulary voice training. To improve the effect, we use the image-retrieval technology as an auxiliary tool, which helps speech recognition module create or more accurately find a personal voice-training library. By means of image recognition, the experimental results show that the effect of speech recognition achieves an average increase of 10 percentages.
Research on Evaluation Index System of Multimedia Teaching Software
Authors: Liu Ying Xin , Yuan Zhong Hu , Shi Wei
Published: December 2012

With the rapid development of multimedia technology, multimedia teaching, as an advanced teaching method, is widely used in teaching, and leads teaching reform of colleges and universities. Multimedia teaching software greatly improves class effect by graphic illustrations and combination of dynamics and statics. But now there are also some problems about multimedia teaching software, such as poor universality, simple design, electronic blackboard, lack of artistry and interactivity, the paper puts forward evaluation principles and three-level evaluation index system of multimedia software for teaching, which have some reference value and realistic significance.