bluuebunny/crossref_metadata_2025 huggingface dataset:
The Research of the Seepage Regularity of Power-Law Fluid under Porosity Scale
Authors: Yang Er Long , Gao Yu Xin , Li Dong Liang
Published: September 2013

There are various shapes of capillary tubes in the rock, and the flow in triangles and rectangles capillary tubes has been studied very little. In this paper, the approximate solution of the distribution of the velocity in triangles capillary tubes has been obtained using variational method. The quantitative relation between pressure difference and flow rate in the two kinds of capillary tubes has been obtained by integrating in the entire capillary tubes, which is similar to Poiseuille's law. this study also applies the Pdetool tool in Matlab to solve the laminar flow of different sections in capillary flow numerically and compares the variational results and numerical results with the literature analytic solution, numerical solution and the experimental results. On the foundation of comparing the variational results, the numerical results and the literature analytic solution, numerical solution and the experimental results, we analyze the influence of the power-law index and cross-section shape on the comprehensive resistance coefficient and flow pressure relationship.
Buoyancy-Induced Convection in a Square Enclosure Discretely Heated at One Side and Cooled either at the Top or at the Bottom Using both Gases and Liquids as Working Fluids
Authors: Cianfrini Marta , de Lieto Vollaro Roberto , Quintino Alessandro , Corcione Massimo
Published: September 2013

Laminar natural convection heat and momentum transfer in fluid-filled, square enclosures partially heated at one side and cooled either at the top or at the bottom, is studied numerically. A computational code based on the SIMPLE-C algorithm is used to solve the system of the mass, momentum and energy transfer governing equations. Simulations are performed using the Rayleigh number based on the cavity width, the thermally-active fraction of the partially heated sidewall, and the Prandtl number of the working fluid, as independent variables. It is found that the top cooling is definitely more efficient than the bottom cooling. In both cooling configurations the average Nusselt number of the cavity increases as each controlling parameter is increased. On the basis of the results obtained, a set of dimensionless correlations is developed.
The Correlation Research of Insects Song Sound Quality and Nano-Mechanical Characteristics
Authors: Xie Jun , Chang Zhi Yong , Wang Hong Wei , Liang Jie
Published: September 2013

The paper proposed a nanomechanical measurements method according to insect parts biometric friction sound, the nanomechanical measurements were carried out on the cricket and grasshoppers wings, meanwhile, two common insects song signal were collected and the sound quality evaluation parameter vectors were constructed from it. The correlation analysis calculations were made between the nanomechanical properties parameters and the sound quality evaluation parameter vectors. The results show that the nanomechanical properties of biological materials have relevance with the sound quality characteristics, and the average correlation coefficient of the cricket is better, the crickets elastic modulus correlation coefficient with loudness were with the highest average correlation coefficient.
The Correlation of Crickets Rubbing Wings Nano-Mechanical Properties and its Friction Sound Characteristics
Authors: Xie Jun , Han Wei , Wang Hong Wei , Chang Zhi Yong
Published: September 2013

According to insect biometric friction sound parts, the nanomechanical measurements were carried out on the cricket wings, the nanomechanical characterization testing analysis results with the sound parts of the friction were obtained and the sound signal extraction eigenvalues correlation with its nanomechanical properties were analyzed. The results show that the nanomechanical properties of biological materials have a relevance with the sound characteristics, the average correlation coefficient between the nanohardness and the sound feature value vector is 0.8875, and the nanohardness is significantly better than elastic modulus parameters, the biological material nanomechanical properties has strong correlation with its sound friction characteristic, and a new method for the relationship between the nanomechanical properties and the insects sound signal friction mechanism are provided.
Analysis of Young Women’s Lower Limb Shape Based on 3D Body Measurement
Authors: Pan Guo Yue , Ye Xiao Lu , Zhang Jia Nan , Xie Yong , Zou Feng Yuan
Published: September 2013

In order to provide references for people to design and purchase bottoms, this paper takes area 223 female college students in Hangzhou as the research object. We collect the human data by non-contact 3D body scanner and manual measurement. We also use SPSS18.0 software to analysis the factor of the data, extracting 4 factors to identify the feature of young female lower body. Then make cluster analysis of the 4 factors and classify the lower body into 5 categories. Combine with the waist full to complete size and type classification under GB/T 1335.2-2008.
The Electric Vehicles Developing in Taiwan-Application of Scenario Analysis
Authors: Hsueh Yao Shun
Published: September 2013

The internal combustion engine vehicles is currently the most important means of transport, but it causes air pollution and rapid decrease in volume of oil reserves and many other issues, therefore, the best choice to reduce carbon emissions is the electric vehicle. Unfortunately, the use of electric vehicles is very uncommon situation now. In this study, We employ scenario analysis of the basic principles and procedures, Let science and technological development, government policies and laws, consumer consciousness, firm behavior and other variables included into consideration, to analyze the possibility of electric vehicles in the future direction of development. And proposes specifically the feasible strategy development suggestion by scenario analysis method, includes: 1. reduce the battery cost; 2. government incentive policy; 3. establish charging stations.
Analysis of Process Parameters Influencing V-Bending Based on Dynaform
Authors: Ma Guo Ying , Huang Bin Bing , Jiang Shou Bo , Chen Kui
Published: September 2013

On the basis of studying the sheet bending forming mechanism, the process of V-bending has carried on the finite element simulation analysis. Aimed at the phenomenon such as the springback in the sheet forming process, according to the quality of formed parts evaluation index, the impact of changes on stamping parameters such as blank holder force, stamping velocity, friction coefficient was analyzed on the bending process and springback of stamping parts. The parts quality problems encountered in the process of stamping process were predicted, in order to provide a theoretical basis for the stamping process design and mold design to effectively shorten the mold design and production commissioning period.
Tool Path Planning for NC System in Line Contact Machining
Authors: Wang Kun Qi , Fan Jing Qi , Liu Le , Xiong Lei
Published: September 2013

The Cutting tool rotation and movement Matrix equation is established in the paper according to the high efficiency of NC machining elliptic cone. Tool path of the elliptic cone is established by the tangent method and Bernstein curve equations. Line contact contour surface method of machining surface is put forward on the basis of tool path. With this method surface interpolation can be carried out according to the equation of curved surface, which can be efficiently processing elliptic cone. Simulation experiments were carried out in this paper, and the results showed that Elliptic cone can be NC machining with high efficiency by the line contact contour surface method.
The Method of the Residual Life Prediction of Pressure Vessel Defect Based on Defect Failure Rate Inflection Point
Authors: Xu Chong , Long Wei , Tian Da Qing , Lin Si Jian
Published: September 2013

The safety assessment of pressure vessel gets increasing attentions with the more extensive application. Taking the  as theoretical basis accomplished the failure simulation system. Completed the simulation of failure patch. Raised the new curve of failure patch. Achieved the simulation of failure rate and found the rate inflection point. And then work out the largest dimension change and the highest stress cycle times that allowed , based on the rate inflection point put forward a method of residual life calculation of pressure vessel and the definition of safety margin.
Intermediate-Temperature Oxidation of Fe-Cr-Ni-Mo Stainless Maraging Steel in Air
Authors: Meng Fan Yan , Su Teng Fei , Guan Jia Dong , An Jian , Lv Xiao Xia
Published: September 2013

The oxidation behavior of Fe-Cr-Ni-Mo-Ti maraging steel was investigated within an intermediate temperature range of 450-600°C. Analysis of oxidation kinetics demonstrated excellent oxidation resistance after exposure in air for 100 h; the oxide layer formed was protective and can resist further oxidation. Surface morphology evolution and oxidized surface hardness were characterized by scanning electron microscope and nanoindentation test. The surface oxidation film was rather smooth with Cr enriched at 450°C, appeared a needle-like structure at 500°C together with a few nodule protrusions enriched in O but absent in Fe and Cr; and then transformed to a smooth and compact oxide surface with some protrusion emerged on the original grain boundaries of austenite at 550°C; finally a Fe2O3 phase particle structure appeared at 600°C. The oxidation layer formed on substrate of Fe-Cr-Ni-Co-MoTi was harder than the substrate when oxidation temperature was lower than 550°C.
A Method to Reduce Calculation Time for a Study of a Damper Plate in a High Speed Hard Disk Drive Simulation
Authors: Suriyawanakul Jarupol , Tangchaichit Kiatfa
Published: September 2013

The damper plate effect in a hard disk drive is studied using computational fluid dynamics technique. The well known Large Eddy Simulation technique needs high resources for computing power and time. This study presents a steady k-e turbulent model which needs lower resources but can predict the flow effect. The 3.5 inch hard disk drive is modeled with a hexahedral mesh for the computational domain. First, the RMS velocities of the model without damper plate and head stack assembly compared with LES and the transient k-e method are less than 6 %. After that, the damper plate is inserted into the model and the RMS velocity is compared using 4 methods which are LES, transient k-e, steady-transient k-e and steady k-e respectively. The results of k-e are very close to each other. The RMS velocity errors compared with LES rises up to 12.35-13.20 percent in the middle diameter zone, where there is an effect from diverted flow. The steady k-e provides a good computing time with 20 min/100 iterations and can show the trend of the damper plate effect which can be used usefully in future design work for various variables.
The Strength Analysis and Structure Optimization of Packer Slip Based on ANSYS
Authors: Lin Zhong Chao
Published: September 2013

Packer is one of the main down-hole mining tools in oil field. When setting the packer prone to fracture under tremendous pressure, directly affect the sealing performance of the packer, which affects the process of mining and safety in production wells. The slip was analysised by using the finite element analysis software ANSYS Workbench. When the applied load is 140kN, the slips maximum stress is 230.11MPa, which exceeding the maximum compressive strength of this material. In the fracturing test of the slip packer test model, the test pressure is 186.33kN when slip fracturing, the compressive strength is measured 233Mpa. To optimize the structure of slip, the spacing size of slip tooth were 15 mm, 25 mm and 30 mm. According to the results of finite element analysis, when the spacing size of slip tooth is 30 mm, the distribution of the slip tooths stress and strain tends to uniform. The maximum load is 240kN. This slip structure size is reasonable, and it provides a reference for the optimization design of slip.
Design of Injection Mold for a Large LCD TV Panel
Authors: Zhou Jian An
Published: September 2013

The overall injection mold structure scheme was determined based on the processing analysis of a large LCD TV panel. Specific heating/cooling system and temperature control system aiming for better surface finish were designed. The runner system, which starts from a pin valve hot runner system and turn to cold runner and then to banana-like gates, was obtained. Lifters used for smooth ejection and pulling side cores were presented. The venting system and the material for the cavity plate were introduced. The assembly drawing was shown and the working process of the mold was described at last.
Optimization Design of a New Safety Structure of Plate-Fin Heat Exchanger Using Genetic Algorithm
Authors: Guo Dong Cai , Liu Meng
Published: September 2013

A safety structure of plate-fin heat exchanger is designed for some special applications to avoid fluid leakage from one fluid side to the other fluid side. A cavity is designed between two channels and a part of cavity volume is filled with good-thermal conductivity material which is divided into a number of columns. For better thermal performance of this structure, distribution of these columns is optimized. Genetic algorithm is used in optimization of distributions, it is effective and the output is better than the simple optimization. The structure in this paper can provide a new feasible structure of secure plate-fin heat exchanger, and the optimization results obtained by using genetic algorithm can provide some guidelines for the optimal designs of heat exchangers.
Modified MRAS Speed Controller for Direct Torque Controlled Sensorless Induction Motor Drives
Authors: Wang Hsiu Ping , Chang Yu Feng , Liu Fwu Hsing
Published: September 2013

This paper presents a Modified model reference adaptive system (MMRAS) speed controller for speed estimation of induction motor using model-reference adaptive scheme (MRAS) approach in a direct torque control system. A good speed controller of induction motor can enhance the speed estimation of sensorless drives. The MMRAS controller can reduce effect of parameter variations and nonlinearities in the induction motor, and approaches to desired performance of referenced model. So, the presented controller can enhance the performance of speed estimation. The availability of the proposed structure scheme is verified by through under computation simulations with MATLAB software. Simulation results are presented in order to prove the availability of the proposed structure scheme.
Motion and Evaporation Characteristics of Ethanol Droplet in High Temperature Nitrogen Environment
Authors: Mi Meng Long , Liu Lu
Published: September 2013

In order to achieve high efficiency of new fuel engine, a mathematical model based on mass, momentum and energy equations was developed to describe the motion and evaporation characteristics of a single ethanol droplet in high temperature nitrogen environment. By comparing the numerical results with experimental data, the validity of model was confirmed. The relationships of droplet temperature, velocity, size with time and movement distance under different ambient pressures were analyzed. The calculated results indicate that with a higher ambient pressure, the droplet temperature is higher, the droplet velocity declines faster, the movement distance is shorter; the evaporation rate is slower, and the droplet life is longer. Within the distance where the droplet velocity continuous variation, the droplet temperature rises gradually, the droplet size expands slightly, and with the increase of ambient pressure, the droplet expansion is more significant.
Design of Micro Power Self-Generation Device
Authors: Tang Shu , Yang Kai Xue , Fang Wang , Cai Biao
Published: September 2013

Power supply for micro-system such as wireless sensor network node (WSNN) is an open and interest issue. In this paper, the principle of power self-generation device based on mechanical vibration transformation is introduced, which absorb the energy of mechanical vibration and transform to pressure on piezoelectric materials to produce micro-current, and a mechanical frequency-adjustable vibration absorber based micro electricity self-generation device is designed.
The Construction Safety Accident Emergency Decision Support System Based on Ontology and CBR
Authors: Zhu Yan Ling
Published: September 2013

Construction safety accident has occurred frequently and accident death toll has been high. Investigate its reason, mainly in the low level of construction enterprise safety accidents emergency management. Strengthen construction safety emergency management can effectively reduce the life and property losses, and to ensure the sustainable development of construction enterprises. We put forward a construction safety emergency decision support system based on ontology and CBR method. Then we described its work processes and use the foundation pit engineering as an example to explain the knowledge representation and the ontology similarity case retrieve matching method. Finally, we give the method to realize the system so as to reach the purpose that improved the building enterprise emergency management capacity effectively.
Supply Chain Modeling Based on Multi-AGENT Research
Authors: Jiang Li Li , He Xu
Published: September 2013

In view of the AGENT has the characteristics such as autonomous, collaborative and other characteristics, based on the CPRF multiple AGENT is carried out on the supply chain modeling, and builds the seven AGENT module and discusses the functions and the interaction relationship of each related AGENT, supply chain model is obtained.
A Heuristic Algorithm for Integrated Surplus Inventory Matching Problem in Steel Enterprises
Authors: Shi Can Tao , Li Ting , Liu Yu Zhuo
Published: September 2013

This paper concentrates on the integrated surplus inventory matching problem (ISIM) in steel enterprises in which the three main product types, slab, hot-rolled coil and cold-rolled coil, are taken into account. A multi-objective model is formulated to maximize the total weight of matched products and to minimize the total cost involved. A heuristic algorithm is proposed on the basis of the analysis on the problem. The experimental results show the model and algorithm are effective.
Scheduling Problems with Human and Machine Effects
Authors: Yin Na , Sun Tian Chuan
Published: September 2013

We discuss single machine scheduling problems with learning effects of setup and removal times and deterioration effects of processing time, i.e., the processing (setup or removal) time of a job is a function of its position . The objective functions are finding the optimal sequence of jobs to minimize a cost function containing makespan, total completion time and total absolute differences in completion times and to minimize a cost function containing makespan, total waiting time and total absolute differences in waiting times. The problems are modeled as an assignment problem respectively, and thus can be solved in polynomial time.
Material Data Integration Model Based on Context-Aware within Manufacturing Enterprises
Authors: Xue Dong Juan , Pan Ying
Published: September 2013

Materials data integration is one of core competence concerning with the development of mass data application in manufacture enterprises. In this paper, a context-aware materials data integration meta model is presented which is incorporating an advanced materials demand mapping and decomposition mechanism to support fine-grained materials data in the right time for the provision of materials services, based on the analysis of the application context involving the key points and relationships in their manufacturing processes. In this model, materials data integration is controlled by the demand state transitions at different levels including workflow levels, control levels and data levels, which incorporates dynamic context information by checking the context constraint associated with each application task at the time of the specific request submission. Finally, a case is given which is implemented in a complex equipments enterprise.
Modeling and Scheme Generation of Dynamic Flexible Job-Shop Scheduling
Authors: Pan Ying , Xue Dong Juan , Gao Tian Yi , Zhou Li Bin , Xie Xiao Yu
Published: September 2013

Aiming at uncertain information and dynamic characteristic during flexible job-shop scheduling process, some kind of dynamic scheduling method for flexible job-shop scheduling problem (FJSP) is put forward based on real-time adjustment. A dynamic simulation solution mode framework is presented for FJSP. This framework is inspired by adaptive control, combined with the robust scheduling and foreseeing scheduling. It has both advantages of such two scheduling methods, and its stable and highly efficient. Preliminary scheme generation method based on foreseeing dynamics scheduling is introduced then. Foreseeing function is realized by fault-handling algorithm and dynamic simulation solver on the basis of Adaptive Genetic Algorithm (AGA).
Research on Strategy of Dynamic Flexible Job-Shop Scheduling
Authors: Pan Ying , Xue Dong Juan , Gao Tian Yi , Zhou Li Bin , Xie Xiao Yu
Published: September 2013

A dynamic scheduling method for FJSP is put forward based on real-time adjustment of controllable margin, aiming at uncertain information and dynamic characteristic during practical job-shop scheduling process. Strategy and methods of dynamic scheduling adjustment are presented, which respond to real-time event. In view of practical operation condition and accuracy demands, two methods are proposed. One is rescheduling that condenses domain, the other is scheduling updating based on adjustment. Such strategy obtains dynamic robust scheduling of FJSP to ensure the real-time of algorithm, continuity and stability of scheduling schemes.
A Frequency Modulation GMI Magnetic Sensor Base on Inverter Multivibrator with Longitudinal Excitation
Authors: Yang Bo , Bu Xiong Zhu , Huang Xian Jin
Published: September 2013

Frequency Modulation (FM) GMI Magnetic Sensors has excellent performance in high signal-to-noise ratio and low power consumption. In this article, the FM magnetic sensors with longitudinal excitation are presented. The inductance of the sensing head versus the excitation frequency and the external magnetic field is tested by the impedance analyzer. The results show that the inductance is sensitive with the excitation frequency from 200kHz to 600kHz. The bias magnetic field generated by a permanent magnet is used to make the sensing head working at a linear region with the highest sensitivity. Three kinds of magnetic sensors with different inverter multivibrators circuits are illustrated and their static characteristics are provided through calibration experiments and data analysis. It shows that the first type has the highest sensitivity (41.0kHz/Oe) and the third type has the best linearity.
A New Electrochemical Sensor for DNA Detection Based on Au Nanoparticles Surface-Modified with β-Cyclodextrins
Authors: Cheng Lin , Feng Cui Han , Fan Hao
Published: September 2013

We herein constructed a sensor that converts target DNA hybridization-induced conformational transformation of the probe DNA to electrochemical response based on host-guest recognition and nanoparticle label. In the sensor, the hairpin DNA terminal-labeled with 4-((4-(dimethylamino)phenyl)azo)benzoic acid (dabcyl) and NH2 group was immobilized on multi-walled carbon nanotube modified glassy carbon electrode (MCNTs/GCE) surface, and the Au nanoparticles surface-modified with b-cyclodextrins (CD-AuNPs) were employed as electrochemical signal provider and host-guest recognition element. Initially, the probe DNA immobilized on electrode kept the stem-loop configuration, which shielded dabcyl from docking with the CD-AuNPs in solution due to the steric effect. After target hybridization, the probe DNA underwent a significant conformational change, which forced dabcyl away from the electrode. As a result, formerly-shielded dabcyl became accessible to host-guest recognition between b-cyclodextrin (b-CD) and dabcyl, thus the target hybridization event could be sensitively transduced to electrochemical signal provided by CD-AuNPs. This host-guest recognition-based electrochemical sensor has been able to detect as low as picomolar DNA target with excellent differentiation ability for even single mismatch.
Aeroengine Exhausted Gas Temperature Prediction Using Process Extreme Learning Machine
Authors: Ding Gang , Lei Da , Yao Wei
Published: September 2013

To solve the aeroengine health condition prediction problem, a process extreme learning machine (P-ELM) is proposed based on the process neural networks (PNN) and the extreme learning machine (ELM). The proposed P-ELM has an ability of processing time accumulation effects widely existing in practical systems. The proposed P-ELM has only one unknown parameter which can be calculated directly rather than in the iteration way, thus the training time can be significantly reduced. After being validated via the prediction of Mackey-Glass time series, the proposed P-ELM is utilized to predict the aeroengine exhausted gas temperature, and the test results is satisfied. It has shown by the contrast tests that the proposed P-ELM can outperform the ELM, but has equal performance with the PNN. However, with just one unknown parameter which can be calculated directly, the proposed P-ELM is much easier to use and it needs much less training time. Thus, the proposed P-ELM is more adaptable to the practical situation of aeroengine health condition prediction compared with the PNN.
The Infrared Diagnostic Technology of Power Transmission Devices and Experimental Study
Authors: Deng Xu Dong , Zheng Kai , Wei Gang , Tang Jin Hong , Zhang Zuo Peng
Published: September 2013

Study on a monitoring method of the faults of high voltage device. Research the measurement theory of infrared thermal imager about the faults of high voltage device. And design a judging method which bases on the relative temperature difference of high voltage device. Then design software which recognizes the faults of high voltage device with the infrared technology. This software scan unusual point of the infrared picture on all sides, and then indent the faults of these device and feed back the faults information, according to the judging method. Last, do the simulation test about the faults of devices, and then identify the faults of current mutual inductor and voltage mutual inductor. The results state that this technology realizes the analysis ability autumnally of the devices faults, and improve the work efficiency to monitor these devices. It helps to guarantee power grid moving safely.
Blade Inspection System
Authors: Chen Tian
Published: September 2013

The manufacturing quality of turbine blade is the key problem for an engine. Blade inspection is the important safeguard to blade quality. This paper presented some key techniques of a blade inspection system. First of all, the scan planning strategy and the results for a blade for getting as complete as possible data are described. Secondly, the data processing methodologies for the laser measurement data are put forward. Thirdly,the innovated methods of parameter extraction strategy, work flow and the key techniques are analyzed in details. Finally, the inspection results are illustrated. It shows that the presented solutions of the developed blade inspection are valid, practical and efficient.
Fabric Weave Pattern’s Recognition Based on Texture Orientation Features
Authors: Shen Jian Qiang , Li Ge Ge , Zou Xuan , Li Yan
Published: September 2013

A novel approach is proposed for representing fabric texture orientations and recognizing weave patterns. Wavelet packet transform is suited for fabric image decomposition in fabric texture. Since different weave patterns have their own regular orientations in original image and sub-band images decomposed by Wavelet packet transform, and the regular orientations can be represented as the energy distributions of these images because the average energies of different fabric texture directions are changeable in a certain way. These energy orientations features are extracted and used as SOM and LVQ inputs to achieve automatic recognition of fabric weave. The experimental results show that the neural network of LVQ is more effective than SOM. The contribution of this study is that it not only can identify fundamental fabric weaves but also can classify some complex weaves.
Researching Metrology System on the Basis of Laser Tracker
Authors: Mei Zhong Yi , Luo Zhen Wei
Published: September 2013

A digital flexible assembly system is developed which is used to assemble one fuselage large component of a large aircraft. The laser tracking metrology system is the important part of the flexible assembly system. The metrology system is composed of three modules: laser tracking measurement module, data processing module, and real-time motion simulation module. The laser tracking measurement module is mainly completing the measurement functions of the laser tracker. Data processing module is the core module of the metrology system, and is responsible for all data computation and transmission in assembling and positioning the aircraft component. The real-time motion simulation module provides the three-dimensional scene simulation of the assembly to the users and gives the users a more intuitive understanding of the assembly process. This paper introduces the system structure and working principle of the developed metrology system which based on the laser tracker. The application of the metrology system and the flexible assembly system can greatly improve the assembly accuracy.
Employing Remote Mobile Scheme to Control Work Area via an Integrated Wireless Network
Authors: Lian Kuang Yow , Hsiao Sung Jung , Sung Wen Tsai
Published: September 2013

This paper proposed method is to use a Smart phone in the real - time situation to carry out monitoring and controlling factory zone temperature, humidity, carbon dioxide concentration, the flame sensor. The size of the operation of the machine vibration frequency, butalso through smart phones to monitor and control, these methods are innovative research. Our research proposes the integration of ZigBee and Wi-Fi protocol intelligent monitoring system within the framework of the entire plant. The factory sensor using the ZigBee protocol to deliver the message, and real-time sensing data is sent to our integrated embedded systems. Our paper presents an integrated embedded systems using the open-source Arduino DUE module, which is a 32-bit ARM core. Our study proposed a way that writes the network code to ARM chipset become integrated controller. The intelligent integrated controller will instantly analytical processing by the ZigBee sensor pass to the message. Simultaneously using Web-Based method to show the measurement results. The Web-Based approach will transfer these results to specify the cloud device by way of the TCP / IP protocol. These cloud devices include all smartphone and Tablet PC, our system can support a variety of OS platforms, without any restrictions and compatibility issues, and this is our intelligent monitoringsystem innovation.
Research and Implementation of Positioning System Based on Ultrasonic
Authors: Wang Hui Feng , Liu Xiao Hua
Published: September 2013

This paper presents an ultrasonic ranging system based on 52 single chip microcomputer. The hardware circuit of the system includ the microcontroller circuit, display circuit, power supply circuit, etc.. The system measures datas by ultrasonic module, then the The measurement results are processed and calculated, and finally showed the actual distance on the digital tube. The system is reliable, the ranging function whith non-contact can realized by ultrasonic.
New just-Noticeable-Distortion Model Based on the Depth Information and its Application in Multiview Video Coding
Authors: Liu Xing Yu , Yu Mei , Tian Tao , Hu Chao Zheng
Published: September 2013

To reach higher compression ratios without perceptually degrading the reconstructed signal, the properties of the human visual system (HVS) need to be better exploited. Research simulated the sensitivity of HVS with the just-noticeable-distortion (JND) model, which describes the perception redundancy quantitatively. This paper proposed a new JND model in multiview video coding (MVC) which explored the property of HVS to stereoscopic masking effect. The proposed model contained the spatial JND, temporal JND and the JND in depth. A novel asymmetric stereoscopic video coding method was proposed based on the new JND model. For each macroblock (MB), the quantization parameters (QPs) were optimized adaptively based on the new JND. Compared with the original JMVC scheme without JND, our method gets remain perceptual quality and save bits averagely 24.18%~36.24%.
An Enhanced NAS-RIF Algorithm for Blind Image Restoration Based on Total Variation Regularization
Authors: Li Xin Ke , Gao Chao , Guo Yong Cai , Shao Yan Hua
Published: September 2013

In order to improve the quality of blind image restoration, we propose an algorithm which combines Non-negativity and Support constraint Recursive Inverse Filtering (NAS-RIF) and adaptive total variation regularization. In the proposed algorithm, the total variation regularization constraint term is added in the NAS-RIF algorithm cost function. The majorization-minimization approach and conjugate gradient iterative algorithm are adopted to improve the convergence speed. We do the simulation experiments for the blurred classic test image which is added additive random noise. Experimental results show that the restoration effect of our algorithm is better than the spatially adaptive Tikhonov regularization method and the NAS-RIF spatially adaptive regularization algorithm, while the value of improvement of signal to noise ratio (ISNR) has improved.
Sub-Pixel Edge Detection on the Product Line
Authors: Zhu Xia , Zhang Yu Lin
Published: September 2013

In this paper, we present a new method to detect sub-pixel edges of shape-known objects. Differ from other sub-pixel edge detection methods based on normal information, we use tangential information. We introduce theories of this method, as well as the influences on the performance of this method caused by size, sampling location and direction of the object. This new method has been practically applied and compared with other methods in real pictures on the product line. Results show that this method provides more accurate sub-pixel edge in practical applications.
A Vision-Based System for Power Transmission Facilities Detection
Authors: Wu Deng Lu , Li Bing Feng , Li Wen Tao , Xia Yong , Tang Yan Dong
Published: September 2013

In this paper, we present the design and implementation of a vision system for power transmission facilities detection based on UAV videos. The vision system consists of two main parts, the client part and the server part. The aim of the system is to detect the power transmission facilities in complex background. In order to achieve this aim, several novel methods are proposed for detecting the power transmission facilities which include the power line, the power tower, and the insulator. The experiment results on real image data demonstrate that the proposed methods are accurate and effective. The system is presented to demonstrate the performance of the detection methods.
Non-Destructive Testing Device for Hot Forming High Strength Steel Parts Based on Barkhausen Noise
Authors: Luo Xiao Yu , Zhang Yu , Wang Zi Jian , Zhang Yi Sheng
Published: September 2013

In order to realize the nondestructive testing for hot forming high strength steel parts, a hardness testing device based on Magnetic Barkhausen Noise (MBN) was developed. By measuring MBN of standardized blocks of Rockwell hardness and extracting feature values of the noise, a fitted curve between hardness and MBN peak was calibrated. Good linearity was found between hardness and MBN peak within high hardness range 35~60HRC. The testing device was proved to be high-precision and stable by measuring the practical high strength steel parts.
An Automatic Testing System Design for Accelerometer Based on LabVIEW
Authors: Zhang K.B , Zhang J.L , Gao J.M , Wu Z.Z
Published: September 2013

By analyzing the test method named orthogonal 12 points for accelerometer, there are several problems to be solved in the temperature experiments for accelerometer. In order to study the temperature characteristics of the accelerometer for better, the testing system for accelerometer based on Labview is designed and the composition of the system is introduced. The microprocessor used in the temperature experiment is C8052F series microcontrollers. A 24-bit A/D converter is embedded in the microprocessor and the resolution of 0.149 microvolts can meet the accuracy requirements of the accelerometer. According to the requirements of high accuracy and test efficiency for accelerometer, the digital multi-channel testing technology is applied to realize the accurate test. The application in temperature experiments indicates that this precise and steady testing system can meet the requirement of accelerometer calibrating & testing completely.
Video Transmission Control System Based on 3G Wireless Network
Authors: Wang Kun Qi , Xiong Lei , Yang Bao Chen , Meng Chen Cong
Published: September 2013

A wireless video transmission system is put forward in this paper. It is constituted by 3G wireless networks and ARM11. Collecting video data is used by V4L2 technology, and the H.264 video codec is used by S3C6410 processors the MFC module. The video codec is sent to remote monitoring center via 3G wireless network. The System can complete video capture, coding, wireless transmission and decoding, and displaying on the LCD. The experiment show the system can achieve wireless remote monitoring.
Porosities and Fatigue Property of Two A356 Cast Aluminum Alloy
Authors: Zhang Yuan Bin , Teng Cheng Xin , Zhai Tong Guang
Published: September 2013

To investigate the fatigue property of A356 cast aluminum alloy, the pore size distribution in two kinds of A356 alloy were statistically tested, and the S-N curves were plotted by conducting four-point bend fatigue test, then the fractography of the fatigue specimens were examined under scan electron microscope (SEM). It was indicated that the fatigue strength of the A356.2 alloy contenting more large pores and rougher crystalline grain was lower than that of A356.1 alloy, though the yield strength of A356.2 alloy was higher. Most of the fatigue cracks initiated from the pores that located on or close to the surface of the specimens, and the fracture of the specimens were induced from the growth of multi-sites initiated fatigue crack.
Finite Element Simulation of Aluminum ECAP Material Flow
Authors: Li Jian Hui , Yu Zu Jian , Xiao Da Zhi , Zhang Li Ping
Published: September 2013

To enhancing strength and toughness of metals, severe plastic deformation (SPD) grain refinement was a typical method. As one of the SPD method, equal channel angular pressing is an effective method in fabricating ultra-fine grain metallic materials. In this paper, the rigid-plastic finite element method was used to analyze the aluminum alloy ECAP processing, to reveal the material flow character and its effect on microstructure evolution. The simulation results were agreed with plastic mechanics and experiment well, and it was shown that distribution of maximum principal stress was not uniform, material located at the front-end of sample flow easily and material located at the top of die channel corner flow difficultly.
Modified BP Neural Network Model is Used for Odd-Even Discrimination of Integer Number
Authors: Hu Bao Long , Xu Ji Ren , Gao Huai Hui , Liu Ji Hai , Wang Ke Ren
Published: September 2013

This paper introduced the BP neural network model and the BP algorithm in detail, and pointed out the BP neural network existed the defects of local optimal tendency of local optimal, slowed convergence speed etc. Through the modified BP algorithm, we could solve the problems existing in the traditional BP algorithm successfully, simulation results for odd-even discrimination of integer number based on MATLAB BP algorithm show that modified BP model compared with BP model has faster training speed and high study accuracy. Modified BP neural network models is used in practice, as long as it is complementary with effective measures, and we can get satisfactory result completely.
Research of the IT Capability Maturity Model and its Extension Evaluation of Smart Grid
Authors: Cai Zi Long , Shu Hong Chun , Zhang Wen
Published: September 2013

The IT capability maturity model and its evaluation system is put forward about smart grid which is suitable for China in view of the capability construction. The Extension method is used to establish the IT capability maturity evaluation model of smart grid. The method is simple and practical, easy to operate, easy to realize by computer and it is verified its effectiveness to smart grid through an example of IT capability evaluation with a province-level smart grid enterprise in western China. Key words: smart grid; capability maturity model; Extension method; IT capability
Perpendicular Magnetic Anisotropy in Fe/MgO Multilayer Film Measured by Magnetic Compton Scattering
Authors: Kato Tadashi , Suzuki Kosuke , Takubo Shouta , Homma Yoshiya , Itou Masayoshi , Sakurai Yoshiharu , Sakurai Hiroshi
Published: September 2013

We have measured magnetic Compton scattering (MCS) for an Fe/MgO multilayer film at several magnetic field applying perpendicular to film plane. A spin specific magnetic hysteresis (SSMH) loop is obtained by the MCS for the Fe/MgO multilayer film. A knickpoint is observed in the SSMH loop around the magnetic field of 0.5 T. Orbital magnetization is enhanced within the magnetic field from-0.5 T to 0.5 T. A decomposition analysis for magnetic Compton profiles shows the suppressed |m|=0 states and enhanced |m|=1 and 2 states within the magnetic field from-0.5 T to 0.5 T. Heremdenotes magnetic quantum number. The knickpoint corresponds to a perpendicular magnetic anisotropy, which comes from the enhanced |m|=1 and 2 state and orbital magnetization in the Fe/MgO multilayer.
Interest Mining Algorithm Based on Blog Information
Authors: Ou Guo Hua , Xu Chang Jian , Zhan Hao Xun , Qin Yong , Huang Han
Published: September 2013

Recently, the amount of blogs on the Internet rises sharply. Hence, mining valuable information in blogs possesses realistic significance for improving user experience, network services, etc. This paper proposes a mining algorithm with blog authors' interests based on classification techniques, which introduces an evaluation standard of non-empty intersection. This algorithm can also improve the hit ratio of recommendation service based on blog authors' interests by means of the interest collection from expanding prediction; therefore, it can reach a higher degree of satisfaction. In addition, this paper performs experiments with the data set from Sina Blog and NetEase Blog, whose result illustrates the higher accuracy of our algorithm. Keywords: Blog mining; Interest mining; Classification algorithm; Non-empty intersection.
Research on Information Processing Technology of Title Bar for AutoCAD/ERP Integration
Authors: Li Li , Wu Zhao Yun , Wu Li Hui , Liu Nan Bo
Published: September 2013

In order to solve the data interaction problem of title bar between the AutoCAD and ERP system, the information processing technology of title bar for the AutoCAD/ERP integration was put forward. The overall principle of technology was analyzed, and some key technologies and methods were studied, including the technology of identifying and extracting the data, the data integration method with ERP, the design principle of the drawing number generator, the technology of filling information into title bar, etc. Based on these, the information processing software of title bar was developed by VB. It could make the information of title bar rapidly transfer between AutoCAD and ERP.
Research of IPv6 Evolution Technology
Authors: Zhao Gui Xin
Published: September 2013

IPv6 has the advanced nature compared with IPv4.The IPv4/IPv6 transition is inevitable to the current network development, but it is impossible to upgrade from IPv4 to IPv6 in short time. The transition is a gradually process. In order to achieve the stable transition, we must select the most suitable strategy according the different time and the different network environment. Introduce several kinds of commonly used transition strategies, Analysis on the evolution of IPv6 and the selection of IPv4/IPv6 transition strategy from both vertical and lateral, and in the paper.
The Auto-Design Network Platform of Synthesis Mining Curve Based on J2EE
Authors: Yang Li Ping , Wang Wei
Published: September 2013

Based on the method and process of manual design of the synthesis mining curve, as well as the characteristics of the data source and real-time information release, the system realizes the auto-design network platform of the synthesis mining curve based on J2EE. The system mainly uses JSP, SSH and JDBC database access technology etc.. This paper briefly describes the system framework, system function and each layer realization, such as the presentation layer, business logic layer and data persistence layer.
The Accuracy Analysis of Parallel Mechanism Assembly Robot
Authors: Liu Xin Rong
Published: September 2013

Parallel robot has the advantages of high rigidity,high bearing capacity and high repeatability of positioning accuracy,and make it more and more widely used in the field of industrial applications.In this paper,the 3-RRR parallel mechanism assembly robot was used as the research object;introduced the sources of error in the parallel mechanism operation platform's position and orientation,furthermore,analyzed the factors of the error sources;then built up that parallel robot's error analysis model,solved the error model with the differential equation,and analyzed the error of parallel robot's structural in rod length,joint angle,the moving platform and the base platform's radius of circle,then simulated with MATLAB.Research shows that All structure errors in parallel mechanism increased by the X axis monotone increasing.
Control System of Tension Test for Spring Fan Wheel Assembly
Authors: Wang Kun Qi , Meng Chen Cong , Li Ping , Fan Jing Qi
Published: September 2013

This design is a basic method for testing spring fan wheel assembly and steel cable tension control system. PLC is used as logic control core. Stepping motor and magnetic powder braker is used as an executive element. The constant tension control of the running process of the system is completed. The fuzzy control process of PID system includes two parts of tension loading and damping loading. The method of modular software is used to make the program structure clear.
A 3-DOF Controlled, High-Speed, High-Precision Local Actuator for Micro Electrical Discharge Machining
Authors: Zhang Xiao You , Ishizuka Tomohiro , Uchiyama Kouki
Published: September 2013

In conventional Electrical Discharge Machining (EDM), the speed and accuracy are limited by probability and efficiency of the electrical discharges. To improve the machining speed and accuracy, we developed a high-speed, high-precision, 3-DOF controlled local actuator. For the actuator, a voice coil motor type of magnetic bearing having a positioning stroke of a few millimeters is used to control the motion of an electrode in the thrust direction in order to speedily maintain a suitable distance from the workpiece. Moreover, two piezoelectric devices having high response speed and high precision are used to achieve the vibration of the electrode in the radial directions to immediately remove the debris between the electrode and the workpiece. The positioning performance of the actuator was evaluated through experiments, and the experimental results show that the actuator possesses a positioning resolution of the order of micrometer, a bandwidth greater than 120Hz and a positioning stroke of 2mm.