bluuebunny/crossref_metadata_2025 huggingface dataset:
Research on the Disk Forming Machine’s Key Components of the Squeezed Supporting Disk Cast-in-Place Pile
Authors: Xiao J.J. , Feng L.
Published: March 2011

The squeezed disk cast-in-place pile has good characteristics of load and economic benefit in architecture. Because of the complicated load changes in the work condition, it is necessary to ensure the whole machine’s security when it works through doing mechanics analysis on the main machine’s key components. The paper has applied the static finite element theory to analyze the squeezing arm by COSMOS, gaining the maximal value of stress and displacement, including the positions of the value. It is shown that the maximum compressional stress of hinge-pin is 328.1MPa and the biggest displacement is upto 0.2883mm. Accordingly, the values are 58.89MPa and 0.1389mm of the upper-arm, and 105.1MPa and 0.174mm of lower-arm. The results have some practical values on optimizing machine design, reducing the cost on experiment and manufacture.
Rules Research on Width of Pieces of Pants
Authors: Gu B.F. , Su J.Q. , Kong H.Y. , Liu Guo Lian
Published: March 2011

. Based on 3D point-cloud data of human body, this paper probes rules research on width of pieces of pants. First, get the point-cloud figure of the studies through scanning the human body by 3D body scanning device (symcad). Read and optimize the point-cloud data by imageware software and obtain the total girth and the front/back girth of waist, abdomen, buttocks, thigh, knee and ankle. Then set the coefficients to establish the regression equation by using SPSS. Finally, verify the above-mentioned method through other studies to illustrate its feasibility. This study completes part of the work for the conversion from 3D garment pattern to 2D, to make up that the 2D non-contact body measurement system cannot directly obtain 3D sizes, and provides the basis for automatically pattern generation of pants.
Influence of Quenching Temperature on Microstructure and Properties of 40Cr Steel by Zero Time Holding Quenching
Authors: Li An Ming , Hu Meng Juan
Published: March 2011

The effect of quenching temperature on the microstructure and mechanical properties of 40Cr steel by zero time holding quenching were studied. The results showed that the strength and hardness of 40Cr steel increased with the increase of quenching temperature in the range of 860~940°C, the strength and hardness reach the maximum at 920°C and then decrease. The metallographic analysis shows austenite grains of the samples by “Zero Time Holding” Quenching have been refined compared with the traditional heat treatment technology. Fine lath martensite was obtained by the “zero time holding” quenching due to the smaller austenitic crystal grain and the uneven distribution of the carbon concentration in austenitic crystal grain.
Numerical Investigation on the Micro-Slip along Friction Interfaces
Authors: Li Zhi Xin , Ji Shi Ming , Zhang Li , Yuan Qiao Ling , Jin Ming Sheng
Published: March 2011

Damping in built-up structures is often caused by energy dissipation or energy loss due to micro-slip along frictional interfaces interaction, which provides a beneficial damping mechanism and plays an important role in the dynamics vibration behavior of such structures, especially the contact stiffness and damping coefficient accounting for the kinematics joint. A detailed study the mechanics derived from the interaction interface between the different components has some embarrassment. And a careful study on the micro-slip phenomenon has been carried out using the finite element method. A classical joint configuration, the plane translation joint, has been used as the model problems. The focus of this paper is to evaluate the effect of dry friction coefficient, the external mechanics on the damping response of frictional joint interfaces interaction, to understand the evolution of the slip-stick regions along a joint interface during loading, and to quantify the amount of energy dissipation/loss during cyclic loading and its dependence on structural and loading parameters.
Present State & Perspectives of Rapid Prototyping and Manufacturing Technology
Authors: Jin Yong Ping , Ding M.M. , Yu J. , Xiang C.
Published: March 2011

By integrating a number of different disciplines, rapid prototyping and manufacturing technology (RPM) is capable of forming parts with complicated structures and non-homogeneous materials. RPM techniques are mainly used as prototypes in such product invention process as stereo lithography, 3D printing, laminated object manufacturing and fused deposition modeling. So far, many new RPM techniques emerged out and have been already applied in such fields as rapid tooling/moulding, direct formed usable part, nano-/micro-RPM and biomanufacturing. The flexible digital manufacturing method will have a bright prospect.
Research on the Parametric Varying Mechanism and Modeling of Accelerometer in Storage Condition
Authors: Chen Y.X. , Deng F.L. , Xu D. , Kang Rui
Published: March 2011

Based on the study of the effect of parametric variation of quartz flexible accelerometer in storage condition, the varying mechanism and causes of bias and scale factor varying were analyzed. According to the analysis results of mechanism, the parts of finite element modeling and the parameters-input forms were determined. Considering the varying magnetic properties of permanent magnetic material impacted on the accelerometer, an approach of loading the servo-circuit formulas and modeling the quartz flexible accelerometer in ANSYS finite element analysis (FEA) software was given, and the algorithm process of FEA coupled magneto-structural simulation was also given. Finally, one certain accelerometer was simulated by FEA software, and a temperature testing was made. It is tested that the trend of the test under various temperature stress was consistent with that of the above output voltage values which is obtained by finite element simulation. Moreover, it demonstrates the correctness of the modeling and the analysis results.
Analyzing and Simulating the Usual Interpolation Algorithm of Numerical Control Systems
Authors: Nie Xue Jun , Wu Ping Dong , Luo Hong Qi , Xiong G.J. , Tang Xiao Hua
Published: March 2011

Interpolation algorithm is the core of control software in numerical control system. Some usual interpolation algorithms of CNC system were analyzed and compared. Dynamic simulation of point-by-point comparison interpolation was carried out with Visual Basic 6.0.
Kinetic Analysis of Spatial RSSR Mechanism by Analytical Method
Authors: Sun Hai Gang , Zhou Yong
Published: March 2011

Aiming at the complexity of kinetic analysis of spatial mechanism by analytical method, an analysis model is established in 3D Cartesian coordinate system. By mathematical modeling and algorithms, relationship formula of motion parameters is set up and the solutions of angular displacement, angular velocity and angular acceleration are obtained. Through computer-aided tools, the corresponding curves are plotted, even the correctness of analytical method is validated. In virtual prototype environment, the same analytical results are presented, giving above conclusions a convincing support. This dissertation actualizes the effective kinetic analysis of spatial RSSR mechanism and has valuable reference to the parametric analysis and design.
Automotive Riser System Design Technology Based on CAE
Authors: Mao H.K. , Xu H. , Xue L.
Published: March 2011

For the sake of achieving the feeding system to be automated designed, the automatic merging model of the casting hot spot set up based on Casting CAE, and based on this model the riser and cold-iron designs can automatically be completed. The CAD/CAE software system was developed for the steel casting, and the feeding system of the side frame casting was designed by the software. according to the process parameters that were provided in the paper, the sample casting was poured and dissected to determine the volume of shrinkage cavity of sample castings. The results showed that no shrink defect exists in the casting, so it proved that the model was reliable for the riser and cold iron design.
Controlling Profile Error for Spherical Surface Micro-Lens in Precision Grinding
Authors: Ren Wei , Xia Zhi Hui , Han C.Q.
Published: March 2011

As the consumer market in the optics, electronics and aerospace industries grows, the profile accuracy demand for ultra-precision flat, spherical and aspheric optical surface micro-lens increases. Previous studies have found that machine system accuracy, tool alignment error and tool radius measurement error impact greatly on the profile accuracy of the machined surface. In this paper, we developed a grinding system based on the ultra-precision diamond lathe, presented a unified mathematical model of effects of all the geometric errors to the shape error by using the multi-body system theory. Aiming at the main source of profile error, the practical mathematical model is derived, and their propagation coefficients to profile error are calculated. By means of simulation analysis and grinding experiments of spherical part of tugnsten carbide, we conclude that the radial tool alignment error is the main influencing factor for the profile error of spherical surface; while tool radius measurement error influence the radius of sphere only.
Design Resource Reusable Model Based on Function Surface for DFMC
Authors: Yang J.Y. , Cheng Z.H. , Li Zhong Kai
Published: March 2011

The rationality of design resource reusable model is the key to judging whether a mass customization system has adequate flexibility and agility or not. Based on the demand of the Design for Mass Customization (DFMC), design resource reusable model should not only include high-level feature information such as demands, functions, principles and constraints, but also include the underlying structural information such as geometry features and assembly relationship. Function Surface is the media between the function and the structure in concept design progress, which is processed to solve the uncertainty when the function maps directly to the structure. Based on Function Surface theory, the multi-layer design resource reusable model including the entity product layer, entity module layer, shell part layer, Function Pattern layer and Function Surface layer is proposed. The designer can browse and find the reusable model based on the different position of the decoupling point of the customer order in the production process. According to the model and the statistical data of the management, the reuse rate curve of design resource is drawn, and the overall optimization method of the design resource reusable standard model and the evolution method of the core technology are proposed.
Rapid Development of Motorcycle Styling Design Base on Reverse CAX Digital Technology
Authors: Lin Li , Ran X.S. , Luo Tian Hong , Wei H.B.
Published: March 2011

A rapid development method of motorcycle styling design based on reverse Computer Aid Design (CAX) digital technology is addressed. The main objective is to improve a Research & Development (RD) team’s productivity by the effective integrity of existing digital design methods. An integrated motorcycle design methodology, Rapid Development Base on CAX (RDBCAX), is presented, which consist of CAD\CAM\CAE technology. It makes RD process more quickly and more effectively compared with the traditional design means. A case study on a company’s 250 Scooter development project is used to illustrate the whole process of the new method. The proposed methodology have a positive impact on the future development of the motorcycle design.
Research of Missile Parameterized Design System with ProToolkit
Authors: Zhao H.Z. , Yin F.L.
Published: March 2011

The system structure of missile parameterized design is put forward to solve the repeat problems in the process of designing and manufacturing missiles. It is illustrated that in Pro/E environment the combination of missile design parameters with constraint relation is adopted to develop missile parameterized system with VC++6.0 and Pro/Toolkit used as secondary development tools for the secondary development and through the dynamic linkage, and the missile parameterized design system is integrated with Pro/E tightly. The missiles designers can obtain series of projectiles or new types of projectiles by modifying main design parameters, which making it possible to meet with a certain standard tactically and technically and shorten the cycle of designing new products.
Design and Research on Touch-Sensitive Image Measuring Instrument with High Precision
Authors: Sun Yin Da , Xu Wen Qin , Zhou Bai Qing , Zhu Feng
Published: March 2011

A digital image detecting system that employs a touch-sensitive monitor as operating center is stated here. With touch-screen and easy-to-use measuring software, its efficiency has been greatly improved compared to the traditional manual image instrument. Its basic structure and measuring principle are presented first, and then the software’s interface and the calibration method, and finally the fundamental principle of the two key algorithms for image detecting: sampling and marking.
Thermal Error Modeling and Compensation for an INDEX-G200 Turning Center
Authors: Guo Qian Jian , He Lei , Zhu Guang Ming
Published: March 2011

The purpose of this research is to fulfill thermal error modeling and compensation of an INDEX-G200 turning center. This paper presents the whole process of thermal error modeling and compensation by using back propagation neural networks. Results show that the BP model improves the prediction accuracy of thermal errors on the turning center and the thermal drift has been reduced from 39 to 11 after compensation.
Comparison of Two Modes in Engineering Drawing Teaching: Traditional Teaching and Multimedia NetworkTeaching
Authors: Tao Ye
Published: March 2011

In order to explore good teaching methods, the traditional teaching model and online teaching mode were compared and their own characteristics were analyzed. The results showed that two modes should be combined in order to better adapt to the current development of education rather than be not a single. Engineering drawing is a skill required of the basic course for engineering students. For many years, however, the blackboard, wall charts, models and other traditional teaching skills are very limited. With the rapid development of the electronics, information and communication technology, the online counseling system should be established without delay. Teachers and students, students and students can communicate well in the traditional teaching mode. Teachers can answer questions in time, however, the efficiency of class is low, and students cannot easily understand. Multimedia Network Teaching can improve teaching efficiency and enhance student interest in learning, which is important to the students’ spatial imagination. At the beginning, there are still something unsatisfactory.
Research on Auto-Grinding Free-Curved-Surface of Molds Based on Fussy Control
Authors: Li Dong Ming , Yan X.L. , Jia Y. , Cui Yun Xian
Published: March 2011

In order to solve the problem of uneven removal quantity in mold curved surface grinding and improve processing quality of auto-grinding mold, this paper designs an experiment device for free curved surface auto- grinding processing. On the basis of optimizing the parameter of process techniques, this paper presents the design method of variety-pressure auto- grinding free curved surface based on fuzzy control, the results of simulation and experiments show that the method can meet the needs of auto- grinding processing.
The Map-Reduce Parallelism Framework for Task Scheduling in Grid Computing
Authors: Pei Yun Xia , Zhang Yue
Published: March 2011

As a rapid developing infrastructure, the grid can share widely distributed computing, storage, data and human resources. In order to improve the usability and QoS of the grid, the job management in the grid is very important, and becomes one of the key research issues in grid computing. Map-Reduce provide an efficient and easy-to-use framework for parallelizing the global optimization procedure. The simulation results show the usefulness and effectiveness of our task scheduling algorithm.
RFID Anti-Collision Algorithm Merging Security Mechanism
Authors: Yu Song Sen , Peng Yun , Zhang Jia Jing
Published: March 2011

Leading into the Code-Division Multiple Access technology is the new hot spot in RFID research. The CDMA has advantages of high security, interference immunity and so on, Hash function has irreversibility in the bidirectional authentication, we improve CDMA technology and combine with hash operation to resolve RFID anti-collision. The algorithm has high security and low cost, it very adapts to the low-middle RFID system.
Dielectric Property of Barium-Bearing Glasses Based on Thai Resources Doped with Nd3+
Authors: Krit Won In , Dararutana Pisutti
Published: March 2011

Barium-bearing glass samples were fabricated using raw material from the beneficiation of local resource. Nd2O3was added in various concentrations. Dielectric constant, density, refractive index, and absorption spectra of the glass samples were measured. It was found that the densities and refractive indices increased with increasing Nd2O3contents. The dielectric constant and absorption spectra were plotted and discussed.
Thermal Performances Analysis of Microelectronic Chip Cooling System with Thermoelectric Components
Authors: Wang Chang Hong , Zhang Jiang Yun , Huang Jin
Published: March 2011

The microelectronic chip thermoelectric cooling equipment and its test system have been developed for the deficiency of the conventional cooling technologies in this paper. The thermal resistance analysis model was applied in research the heat transfer process of the microelectronic chip cooling system and its characteristics. The results show that: When the thermoelectric cooling (TEC) system is in normal operating condition,the Peltier effect is the dominant role in the thermoelectric cooling process despite the opposite actions of the Joule and Fourier effects. The thermal resistance of TEC, which is Q2, decreases when the operating current (I) increases. For the different chip power, there is an optimum current (Iopt) making the interface thermal resistance between chip and TEC minimum (Q1). Q1can obtain the minimum 0.465°C·W-1 when the chip power is 25W and Iopt is 2.4A. The total thermal resistance (Qtotal) firstly decreases and then increases with the increase of operating current. There is an optimum current which allows the total thermal resistance is smallest. Qtotal may obtain the minimum value 0.672°C·W-1 when the chip power is 25W and Iopt is 2.4A. Furthermore, Qtotal Iopt both increase by the chip power.
Effect of Single or Double Calcination on LiMn2O4 Prepared by a Solution Combustion Synthesis
Authors: Liu Gui Yang , Guo Jun Ming , Li Yan Nan , Wang Bao Sen
Published: March 2011

Single phase LiMn2O4 spinel powders have been prepared by solution combustion synthesis at 400 and 500°C using nitrate-acetate mixture raw materials without any fuels. The effect of single or double calcination has been studied contrastively. The phase composition and micro morphology are investigated by X-ray diffraction (XRD) and scanning electric microscope (SEM). The XRD results indicate that single phase LiMn2O4 can be obtained by single calcination at 400°C and 500°C, but there is Mn2O3 impurity in the sample prepared by double calcination at 500°C. SEM investigation exhibits that the particle size increases with raising calcination temperature or double calcination. The electrochemical performance tests indicates that the initial capacity, cyclic performance and rate capability of the samples prepared by single calcination are better than these of the samples prepared by double calcination.
Analysis of Output Characteristic for Fiber Bragg Gratings Laser
Authors: Xiao Hong Fei
Published: March 2011

A spread equation of erbium-doped optical fiber laser was derived from the basic theory of laser. Then, the hypothesis of erbium-doped optical fiber ring laser was proposed. The special computation procedure and the theoretical arithmetic emulation of output characteristic for this laser were conducted by discussing the effect of the configuration. Moreover, this article further investigated the influence of the relationship between pumping and laser output, cavity distribution of gas gain, slope efficiency and the influence that the output coupling rate parameters having on the laser output of optical fiber laser.
Support Vector Machine Optimization Based on Bacterial Foraging Algorithm and Applied in Fault Diagnosis
Authors: Yang D.L. , Li Xue Jun , Wang K. , Jiang Ling Li
Published: March 2011

The parameter optimization is the key to study of support vector machine (SVM). With strong global search capability of bacterial foraging algorithm(BFA), the optimization method—support vector machine parameters optimization based on bacterial foraging algorithm was proposed, which can achieve the dynamic optimization of the parametersCandγ,and overcomes the problem of inefficiency for selecting reasonable parameters according to the experience in the traditional fault diagnosis. Compared with other methods, the BFA is simpler and easier for programming, and the optimization SVM model become smaller. The rolling bearing fault diagnosis results show that bacterial foraging algorithm is suitable for support vector machine parameter optimization.
Qualitative Properties of Vibration about Nonhomogeneous Circular Membrane with Axisymmetrical Mass
Authors: Wu Lei , Wang Q.Sh. , Wang D.J. , Zhu Z.S.
Published: March 2011

Some qualitative properties are discussed about the transverse vibration of nonhomogene- ous circular membrane with axisymmetric mass distribution. The oscillating property of nonhomoge-neous circular membrane was expounded. The distinct property of frequency spectrum and the distribution law about the node circle of modal function are also proved.
Drive System Design and Characteristic Curve-Fitting of Intelligent Motor Test System
Authors: Li Li , Liu Jian , Yang Yue Long
Published: March 2011

According to the system’s working character, it presents a design scheme of distributed network group control system, which combines the testing power source and unit control system. The paper also describes in detail the equivalent circuit algorithm for motor working characteristics calculation and the nonlinear least square method for experiment curve fitting. By taking full advantage of VB in user interface developing, the system is very convenient for curve fitting for motor type testing, and testing result printing, which intelligentize measurement of motor working characteristic.
An Energy Efficient Estimation Algorithm for Wireless Sensor Network
Authors: Ding Yong , Su Yue Mei
Published: March 2011

Wireless Sensor Networks functionality is closely related to network lifetime which depends on the energy consumption, so require energy- efficient protocols to improve the network lifetime. According to the analysis and summary of the current energy efficient estimation algorithms in wireless sensor network An energy-efficient algorithm is proposed,. Then this optimization algorithm proposed in the paper is adopted to improve the traditional diffusion routing protocol. Simulation results show that this algorithm is to effectively balance the network energy consumption, improve the network life-cycle and ensure the communication quality.
Inverse Kinematics Solution for a 6R Special Configuration Manipulators Based on Screw Theory
Authors: Tan Yue Sheng , Cheng Peng Le , Xiao Ai Ping
Published: March 2011

Three basic sub-problems of screw theory are acceptable for some particular configuration manipulators’ inverse kinematics, which can not solve the inverse kinematics of all configuration manipulators. This paper introduces two extra extended sub-problems, through which all inverse kinematic solutions for 6-R manipulators having closed-form inverse kinematics can be gained. The inverse kinematic solution for a new particular configuration manipulator is presented.
Current Formulas of Silicon-Glass Anodic Bonding
Authors: Tang Jia Lu , Liu Xiao Wei , Chuai Rong Yan , Zhang Hai Feng
Published: March 2011

To simulate the whole process of anodic bonding accurately, this paper makes the research on the current of anodic bonding with area and point cathode respectively. Based on the known models of anodic bonding, novel current formulas are deduced for anodic bonding with area cathode by means of the relation between glass resistivity and temperature. After calibrated by statistics of experimental data, the formulas quantitatively describe the relation between bonding current with time, as well as bonding voltage and bonding temperature. Further, using spreading model of anodic bonding, an approach to dealing with the problem of point cathode current is presented. The experiments prove that the current formulas from the approach are able to indicate the law of point cathode current.
Incremental Regressive Learning Algorithm of Support Vector Machine and its Application
Authors: Zhang Shi Hua , Qu Xi Long , Wang Xue Ye
Published: March 2011

There is no incremental learning ability for the traditional support vector machine (SVM) and there are all kind of merits and flaws for usually used incremental learning method. Normal SVM is unable to train in large-scale samples, while the computer’s memory is limited. In order to resolve this problem and improve training speed of the SVM, we analyze essential characteristic of SVM and bring up the incremental learning algorithm of SVM based on regression of SVM related to SV (support vectors). The algorithm increases the speed of training and can be able to learning with large-scale samples while its regressive precision loses fewer. The experiments show that SVM performs effectively and practically. Its application to prediction of the transition temperature (Tg) for high molecular polymers show that this model (R2=0.9427) proved to be considerably more accurate compared to a ANNs regression model (R2=0.9269).
Effects of Argon-Oxygen Ratio and Sputtering Power on Optical Properties of ZnO:Al Thin Films Fabricated by RF Magnetron Sputtering
Authors: Jie Shu , Yang Li , Fan Dong Hua
Published: March 2011

Al-doped ZnO (ZAO) thin film with good performance was prepared by radio frequency (RF) magnetron sputtering technology under optimized process conditions. The crystallized characteristic and microstructure of the prepared samples were investigated by X-ray diffraction (XRD) pattern and atomic force microscopy (AFM). The optical transmittance spectra was employed to investigate the dependence of the optical performance of the ZAO film on the process conditions, such as argon-oxygen pressure ratios and sputtering powers, which revealed that the transmittance in the visible spectrum is first increased and then decreased as the argon/oxygen pressure ratios increased from 7/1 to 10/1. When the argon/oxygen pressure ratio is 9/1, the transmittance adds up to the maximum. In addition, as the RF sputtering power increases from 80W to 120W, the transmittance of the films is slightly declined with an average transmittance of above 80%; and with the increase of the sputtering power to 140W and 160W, the maximum transmittance of the film obviously decreases below 75%. Moreover, the electrical properties of ZAO thin films were measured by the four-probe tester. The resistivity of the film is less than 10-3 Ω • cm, demonstrating that it have a good electrical performance.
Electrochemical Transient Behaviors of Tubular Steel in Buffered Acidic Solution Dissolved with Hydrogen Sulfide and Carbon Dioxide
Authors: Deng Hong Da , Li Chun Fu , Cao Xian Long , Zhao Mei Yu
Published: March 2011

In this work, the electrochemical transient behaviors of tubular steel API-P110 in buffered acidic NaCl solutions saturated with 50% H2S and different content of CO2 mixture gases, were investigated by single potential step chronoamperometry. Analysis of the results shows that fewer reactants take part in the reduction reaction when adding CO2 content from 17% to 50% in 50% H2S containing solution. Anions desorption process controls the reactant transferring process in metal-solution interface in the solution containing H2S and CO2. When at higher overpotential, anions desorption enhances and hydrogen absorption depresses with the increasing CO2 content in H2S/CO2.
Signal Processing Technique of Fluorescence Lifetime Imaging Using Four-Dimension Time Correlated Single Photon Counting Method
Authors: Sheng Cui Xia , Tang He Jing , Jia Hong Yan , Yang Shu Lian
Published: March 2011

Measurement of fluorescence lifetime plays an important role in fluorescence lifetime imaging technology. If the Time correlated single photon counting method is used to process the signal of fluorescence lifetime images, it can make the real time imaging which have the virtue of high timing resolve and high signal to noise ratio. Multi-wavelength channels are used to record the lifetime simultaneously in four-dimension TCSPC system design. Four-dimension TCSPC imaging can be used to record the photon density over time, wavelength and coordinates of the scanning area. Analysis shows that the counting efficiency and the amount of information in the data can be increased by recording the fluorescence in several wavelength channels simultaneously. Multi-wavelength imaging was also successfully used to separate different fluorephores in stead-state images.
A Delay Optimization of Non-Periodic Information for the Scheduling Algorithm
Authors: Wang Jun , Ma Ji Ying
Published: March 2011

The optimal scheduling algorithm based on non-periodic information is model and analyzed. Compared with typical scheduling algorithms, it improves non-periodic tasks theoretical delay. Finally, the simulation shows that the scheduling algorithm is effective in reducing delay problems of the non-periodic communication task.
Applications of Y2O2S: Eu+Fe2O3 Materials in Fluorescence Fiber System
Authors: Wang Shu Tao , Wang Dong Sheng , Pan Wei Wei
Published: March 2011

A set of fluorescence optical fiber temperature measurement system is designed based on Y2O2S:Eu+Fe2O3.The system is mainly composed of the following parts: excitated illuminant, probe, photoelectric detector, belt wave filter, zero checking and fluorescence life-span measurement device. The fluorescence matters give out light when they are stimulated by external light. Fluorescence intensity and life-span depend on the fluorophore temperature. Fluorescence life-span is fluorescence materials’ inherence characteristic, we can realize temperature's absolut measurement by carrying out this measurement, and it has very good sensitiveness and measure accuracy within the low and middle temperature range. Fluorescence frequency is identical with exciting light since exciting light is modulated to a fixed frequency. Y2O2S:Eu+Fe2O3is a new material handled by Y2O2S:Eu with red pigment of ferric oxide, while the corresponding wave crest’s intensity of Y2O2S:Eu+Fe2O3is 9 times higher than Y2O2S:Eu nearly a magnitude. The experiment of the optical spectrum to several sensitive materials confirms the match that Y2O2S:Eu+Fe2O3is with light source and the feasibility of the system.
Laser Cladding of Micro-Fluidic Channel Mold
Authors: Wang Xu Yue , Guo H.R. , Wu Yong Bo , Xu Wen Ji , Guo D.M.
Published: March 2011

Laser cladding of micro-fluidic channels mold was performed using Nd:YAG laser and synchronous powder feeder. Influences of laser power and powder feed rate on clad layer geometrical dimensions and qualities were investigated. Results show that powder feed rate 1.5-2.5 g/min used obtains micro clad layers which meet geometrical dimensions’ requirement of micro-fluidic channels mold and combination of parameters laser power 400 W and powder feed rate 2.0 g/min achieves micro clad layer with better clad quality. Scanning paths of micro-fluidic channels mold was planned through CAD-CAM software. Using optimum parameters combination, multilayer laser cladding experiment was carried out and a sample of micro-fluidic channels mold was fabricated with expectative structure and hardness. A little milling and polishing makes the sample meet technical requirements, 0.2mm in height and 0.3mm in width. Fabricating a mold takes 15-20 min totally.
Study on the Application of Computer Synchronous Control in Lift-Slab Construction for Steel Frame Structures
Authors: Cao Xian Lei , Zhang Zhi Feng
Published: March 2011

By optimizing construction process, the laminated lift-slab method that means to lift two slabs one time upgraded from the traditional layer by layer lifting was proposed, the method in optimizing the construction process, shorten the construction period and improve the stability of group column has the significant advantages. Studied the application of computer synchronous control technology and solved the non-synchronization difficult problems in lifting slab, by controlling the lifting height error, which can reduce the board's destruction, reduce the burden uniformity of hoist, increase the stability of group column and speed up the construction progress. Therefore, the application of computer synchronous control technology in construction process has obvious economic and technical advantages.
Study on an Improved Integration Architecture of the Collaborative Sales Management System Based on Auto-Industry
Authors: Han Min , Li An Sheng , Li Nan
Published: March 2011

The paper explains and demonstrates an improved integration architecture based on the Smart Client, for the current situation and the existing problems of the collaborative sales management system based on ASP (Application Service Provider, ASP) platform of auto-industry. The key technologies and strategies such as off-line supporting, smart deploying and updating for system application are explained, which are proved feasibly by practice.
Synthesis, Photoluminescence and Energy Transfer of Two Novel Tb(III) Ternary Complexes
Authors: Ren Xiao Ming , Wei Chang Ping , Cheng Guo
Published: March 2011

Two novel Tb(III) ternary complexes with 2-aniline carbonyl benzoic acid (HAB) as the first ligand, imidazo [5,6-f] phenanthroline(IP) and 1,10-phenanthroline(phen)as the secondary ligands were synthesized. The structures of the ligands and Tb(III) complexes were confirmed by elemental analysis, IR spectra and UV spectra. The fluorescence spectra suggested that the luminescence intensity of Tb(HAB)3IP was obviously higher. Further investigation showed that HAB was the donor of energy, IP and phen which functioned as “energy ladder” could transfer the energy in the system of ternary complexes. If this “energy ladder” was located suitable, it could bridge the energy level difference between the triplet state of first ligand and excited states of rare earth ion .So, the intramolecular energy could transfer efficiently to central Tb3+ ion and competitive luminescence of HAB was also reduced.
Fabrication and Characterization of MgAl2O4 Thin Films by Sol-Gel Method
Authors: Hsu Cheng Hsing , Lin Jenn Sen , Yang His Wen
Published: March 2011

This paper describes microstructure characteristics of MgAl2O4 thin films were deposited by sol-gel method with various annealing temperatures. Particular attention will be paid to the effects of an annealing treatment in air ambient on the physical properties. The annealed films were characterized using X-ray diffraction. The surface morphologies of annealed film were examined by scanning electron microscopy and atomic force microscopy. The dependence of the dielectric properties and microstructure characteristics on annealing temperature was also investigated.
Effect of Annealing Treatments on Mg(Zr0.05Ti0.95)O3 Thin Films by Sol-Gel Method
Authors: Tseng Ching Fang , Lai Chun Hung , Lee Chih Wen
Published: March 2011

Dielectric, Optical properties and microstructures of Mg(Zr0.05Ti0.95)O3 thin films prepared by sol-gel method on n-type Si(100) substrates at different annealing temperatures have been investigated. The selected-area diffraction pattern showed that the deposited films exhibited a polycrystalline microstructure. All films exhibited Mg(Zr0.05Ti0.95)O3 peaks orientation perpendicular to the substrate surface and the grain size with the increase in the annealing temperature. A dielectric constant of 7.4 and an optical bandgap of 3.7 were obtained for the prepared films.
The Finite Element Analysis Based on ANSYS- Magnetorheological Elastomer Isolator
Authors: Tan Hai Lin , Jiang Xiao Bin
Published: March 2011

Use multiphysics module in finite element analysis software ANSYS to analyse Magnetorheological elastomer isolator of Static magnetic field and modal. Thus making a comprehensive evaluation to The design of the isolator whether it can meet the performance requirements and stability in the actual work.
Optical and Electrical Character of SICGe/SIC Heterojunction Phototransistor with Charge Compensation Layer
Authors: Cao Lin , Pu Hong Bin , Chen Zhi Ming , Zhou Shao Jiang
Published: March 2011

The optical properties of SiCGe epitaxial on 6H-SiC substrate by LPCVD were investigated by transmittance measurements. Swanepoel methods were used in order to calculate the optical properties of the sample. The result was use to simulation the performance of n-SiC/p-SiCGe/n-SiCGe heterojunction phototransistor with charge compensation layer. Simulation results show that with wide bandgap SiC emitter and p-type SiCGe charge-compensation layer, device responsivity doubled and breakdown voltage increased from 440V to 580V for the given structure
Weak Signal Detection in Underwater Acoustic Based on Time-Series Characteristic
Authors: Wu Hai Ping , Zhu Shi Jian , Lou Jing Jun , Yu Li Yang
Published: March 2011

For limitation of the matched filter method in underwater acoustic detection,a method of underwater acoustic weak signal detection based on time series characteristic quantity is proposed．Chaotic waveforms, which have thumbtack type ambiguity function, is selected as the waveform of active sonar in the situation of High Dynamic Doppler Frequency Shift. According to the change of correlation dimension while chaotic radar echo appears in the chaotic background, chaotic radar echo is checked out by the means of simulation in the situation of high dimensional chaotic background and low dimensional chaotic background．The method proves out in high dimensional chaotic background．
Supercontinuum Generation with Dual-Wavelengthpumping in an All-Fiber Device
Authors: Wang Yan Bin , Hou Jing , Xiong Chun Le , Peng Yang , Song Rui , Lu Qi Sheng
Published: March 2011

We have theoretically investigated supercontinuum (SC) generation with dual-wavelength pumping. The dual-wavelength-pumped source at 1064/686nm generated through four-wave mixing and SC generation have been realized in an all-fiber device. A good agreement between our simulation and experimental results has proved the conjugate action of cross-phase modulation and soliton self-frequency shift can obviously improve the power at the visible wavelengths with group-velocity matching between the visible wave at 686nm and the infrared wave at 1064nm.
The Semantic Model of Manufacturing Services
Authors: Wang Ming Wei , Li Shan , Zhou Jing Tao
Published: March 2011

Manufacturing services are basic building blocks for the agile collaborating business applications. It represents a new model in the utilization of the networked resources, by which self-contained, modular applications can be described, published, located and dynamically invoked in a programming language independent way. In this paper, a general formal model for manufacturing services is proposed by wrapping manufacturing resource into semantic web service. Thus resources sharing requirements are translated into service’s capacity requests. As the key part of manufacturing services, manufacturing capability profile is presented which has four particular attribute sets to represent the infomation what enterprises really care about. Finally, ontology specifications of manufacturing services are established by extending OWL-S, which provides a standard vocabulary to support in an unambiguous, computer-understandable form.
An Epon Dynamic Bandwidth Allocation Algorithm Based on the Least Mean Square Prediction
Authors: Li X.B. , Dan L. , Wu Q.
Published: March 2011

To ensure different priorities of different services, for instance the voice, video and data, EPON dynamic bandwidth allocation algorithm must be able to accurately predict frames between the two authorizations. In respect to this problem,this paper presents a multi-queue scheduling EPON dynamic bandwidth allocation algorithm on the basis of the least mean square prediction and illustrates the specific algorithm as well as the algorithm simulation. Simulation results show that this scheme can predict the frames of high-priority services and reasonably allocates bandwidth based on the predictions. Thus the scheme fundamentally avoids light load penalty and reduces the delay of high priority services.
A Virtual Experiment Platform Based on Matlab Webserver
Authors: Yan Tian Yun , Xu Kai Kuo , Wei Wei , Zhang Hong Wei
Published: March 2011

The concept of virtual experiment platform and matlab webserver, the fundamental principles and system configurations of Matlab Webserver are introduced in detailed. The key process and source codes are divided into three essential parts in the simulation system, and they are Mfile, HTML input interface and HTML output document. Finally, the simulating result is presented.
The Deployment of Core Infrastructure for Middle and Large Scaled Industry
Authors: Yan Tian Yun
Published: March 2011

Medium-sized IT solutions for medium-sized industry to provide the planning, construction, deployment and operation standardization, pre-tested guide to the IT environment. The core IT infrastructure including: the physical network, network services, directory services, security of the Internet, file services. This set of solutions for a variety of common situations provides practical solutions to meet the IT environment or characteristics of specific services. This makes the value of consumers or retailers can only focus on their specific issues.
The Research of Data Gathering Protocol for Mobile Sensor Networks
Authors: Zhou Xin Lian , Xu Jian Bo
Published: March 2011

This paper first proposed an energy-efficient distributed clustering technology for mobile sensor nodes and sink node mobility, select the higher residual energy and the nearest node from fixed nodes as cluster heads responsible for collecting sensed data, and all the fixed nodes form routing backbone to forward data, both can save energy and avoid cluster head away. Then, proposed a cross-layer scheduling mechanism to avoid the impact of mobile node and meet expectations cluster coverage. With energy-efficient clustering technology, efficient network topology control technology and mobile sink node, the data collection algorithm MSDBG, not only has considered mobility of nodes and energy saving, but also has achieved prolonging network lifetime.
The Simulation of Aspheric Lensed Fiber Based on ABCD Matrix
Authors: Wang Jin Yan , Yu Hai Ying , Gu Yan , Liu Xiao , Suo Lin , Chen Lun Zhong
Published: March 2011

The paper proposes the simulation of aspheric lensed fiber for efficient coupling between laser diode and single-mode aspheric lensed fiber, which is applying SIMULINK in MATLAB with the theory of ABCD Matrix.
Microfluidic Device for Fluorescence Immunoassays by Using Porous Matrix
Authors: Chen Xing , Cui Da Fu , Li H. , Cai H.Y. , Sun J.H. , Zhang L.L.
Published: March 2011

The present work presents the availability of using porous matrix in microfluidic devices as a solid phase matrix for immunoassays. Porous matrixes on the surface of the microchannels were microfabricated by MEMS technology and electrochemical etching technology, which were coated on the wall of the rectangular microchannel in the microdevices to provide a surface-enlarging matrix. The microfabrication process of porous matrixes was investigated and optimized. Then the surface morphology of the porous matrixes was characterized by SEM. Both direct method and dual-antibody sandwich method were used for fluorescence immunoassays. Using sandwich immunoassay, 6.25μg/mL - 25μg/mL human IgG in real samples have been detected with a correlation coefficient of 0.9773. These porous microdevices have shown some advantages over its large-scale counterparts, including lower sample and reagent consumption, lower cost, less analytical time and so on, which enables detection for clinical testing.
Soft Magnetic Material (NiFe2O4) Particles Synthesized by Solvent Co-Precipitation Method
Authors: Zhang Wei , Cen J.S. , Hu Zheng Fa , Zhuang L. , Tang X.G. , Luo L.
Published: March 2011

The crystallization properties of magnetic nickel ferrite (NiFe2O4)nanoparticles have been investigated from the comparison of the characteristics of NiFe2O4nanoparticles prepared by using the solvent co-precipitation method at different temperatures. The results indicated that the magnetic particles were in the spinel phase and the crystallite size changed increasingly with the calcined temperatures, demonstrating the high saturation magnetization moment, as close to the well-crystallized NiFe2O4particle, and suitable soft magnetic properties.
Admissible Analysis and Synthesis of Markovian Jump Linear Descriptor Systems
Authors: Zhang Yue , Ni Wei
Published: March 2011

The control problem of Markovian jump linear descriptor systems is considered in this paper. Based on generalized multi-Lyapunov function a sufficient condition to guarantee the admissibility of system is obtained. The state feedback and statistic output feedback control law are then designed also based on the generalized multi-Lyapunov function. All the results are obtained in terms of linear matrices inequalities(LMIS). And a circuit system example is presented to illustrate the usefulness of the main results.
Optimization of Cr12MoV Steel Boronizing Technology
Authors: Chen Jing , Yang An Jie , Hao Shao Xiang
Published: March 2011

Boride layer was formed on the surface of Cr12MoV after being treated by boronizing technology, and it has high hardness, excellent high temperature oxidation resistance and other characteristics so the boronizing process are widely used in the heat treatment technology of mold and wear-resistant workpiece. But the boronizing technology also has disadvantages such as larger brittleness in the boronizing layer. In order to improve Cr12MoV boriding organizations, it is found that the infiltration of rare earth elements can improve the performance of a single boride layer. In this paper, by changing the temperature, time, rare earth addition and other parameters , the optimization parameter was obtained. and this could make infiltration layer more compact. The results of experiment also showed that the hardness and wear resistance of boride layer are significantly improved.
Analysis of Geometrical Non-Full-Similar Scale Model Based on Similarity Theorem
Authors: Pan Jian Rong , Wang Zhan , Su Cheng
Published: March 2011

Applying similarity theory to study the characteristics of scale model for getting agreement between scale model test and prototype test. On the basis of the theoretical analysis of scale model test, a formula derivation of similarity condition was carried out based on similarity theory. A numerical example for joint of steel beam to CFST (concrete-filled steel tubular) was given to show the accuracy formula of similarity condition. The result showed that error results from non-full-similar geometrical properties was considerable between poorly-proportioned model test and prototype. For getting good agreement between scale model test and prototype test, the well-proportioned model should be calculated by the formula of similarity condition for the joint of beam to column.