bluuebunny/crossref_metadata_2025 huggingface dataset:
Optimization Theory in the Application on the Flexible Management of Human Resource
Authors: Jia Xiao Yan , Wang Wei
Published: February 2012

Along with the emergence of the knowledge-based economy and the study type organization, the thought of flexible management is led to go into human resource, and develop a more and more important function.In human resource flexible management, the personnel is excellent to turn to install，while adjustment is the most decisive working talent in the whole human resource management. With the superior foundation for turning a theory，this paper made its thought use of the optimzation and adjustment in the optimzation and adjustment of business enterprise and the personnel, then built up the mathematics model of the optimzation and adjustment, and solved the mathematics model by applying MATLAB.Finally, proved the possibility and usefulness of the method.by a solid example verification.
Chaotic Artificial Bee Colony Constrained Optimization Algorithm with Hybrid Discrete Variables and its Application to Mechanical Optimization
Authors: Luo You Xin , Che Xiao Yi
Published: February 2012

Artificial Bee Colony algorithm is an optimization algorithm based on the intelligent behavior of honey bee swarm. This paper presents Bee Swarm Optimization intended to introduce chaotic sequences into the algorithm. On the basis of Artificial Bee Colony Optimization Algorithm, a new algorithm by introducing constructing dynamic penalty function and chaotic sequences was presented. Based on Matlab software, the program CABCOA1.0 with hybrid discrete variables for the proposed algorithm was developed. The complex mechanical optimization was given. The results show that this algorithm has no special requirements on the characteristics of optimal designing problems, which has a fairly good universal adaptability and a reliable operation of program with a strong ability of overall convergence.
Dynamic Trust Model of Internet-Ware Based on Task Classification
Authors: Yin Gui Sheng , Wang Shu Yin
Published: February 2012

with the Internet popularity and the widely application of information storage technology, people pay more and more attention on the information security. Trust model is the hot spot of present information security field. It is connected with the safety interaction and operation of the entire system. Internet has the characteristic of openness, anonymity, and autonomy. All these extrude the security problems. How to build the safety and reliable trust model is the most reliable approach to solve the network security problems. Trusted computing is the core center of trust model. Through the trusted computing, we will get the perfect security design.
Dynamic Analysis of an SIRS Model with Nonlinear Incidence Rate
Authors: Li Jun Hong , Cui Ning , Cui Liang , Li Cai Juan
Published: February 2012

In this paper, we study the global dynamics of an SIRS epidemic model with nonlinear inci- dence rate. By means of Dulac function and Poincare-Bendixson Theorem, we proved the global asy- mptotical stable results of the disease-free equilibrium. It is then obtained the model undergoes Hopf bifurcation and existence of one limit cycle. Some numerical simulations are given to illustrate the an- alytical results.
Design of High-Accuracy Digital Controlled Direct Current Power Supply
Authors: Chen Zong Mei
Published: February 2012

After introducing the design method of digital current (DC) power supply and the circuit schematic diagram and software flow chart of the key part, the paper designs the core processor based on ARM 32-bit Cortex™-M3 as controller, which, in hardware, has the features of high accuracy and simple circuit, and in function, parameters can be set both through keystroke and computer serial port. Meanwhile, the voltage and current of power supply are of high accuracy, quick in adjust response and with small output voltage ripple.
Application Effects Influenced by Credibility of Simulator Models
Authors: Ding Man , Jiao Song Ming , Wang Kun Fang , Han Pu
Published: February 2012

This paper introduces how the simulator's credibility, which mainly includes the fidelity and accuracy, influences the practical application effects. Based on analyzing the factors that influence the physical fidelity and the mathematical model accuracy, an approach is put forward to improve the simulation precision. Furthermore, the paper summarized the practical values of the simulator and its function on scientific research.
Stable and Efficient High-Tension Communication Power Supply Based on Electromagnetic Coupling
Authors: Li Li Ming , Chen Ying , Wei Yun Bo
Published: February 2012

High-tension power delivery based on electromagnetic coupling for hot spot temperature in power equipment and the systems of current on-line monitoring of early warning is an effective way to solve the 'energy island' .In this paper, a miniature, low cost, high reliability, easy installation and maintenance communication power supply that based on electromagnetic coupling has been designed, it also can provide a lasting and stable power output. Since the central position of the receiver coil and the rectifier filter circuit in the power supply，Optimization design and simulation have been made for the coil and the rectifier filter circuit. A three-dimensional coil was used as the receiving coil, optimization results show that load power is 10.18w at the conditions of low-frequency and high-voltage. It achieves the objective of the miniature and low-cost. The simulation results of rectifier and regulator show that the system can transfer energy at the range of approximately 2% fluctuation.
Doubts of Calculation of Efficiency Transmission of CHT-100 Type Circulating Power of the Efficiency Transmission Gear Experiment Set
Authors: Zhao Yue , Yan Qun
Published: February 2012

It put forward questions for the calculation equation transmission efficiency of CHT-100 type Circulating power of the efficiency transmission gear experiment set. Put forward new mechanics analysis method. And according to the new mechanics analysis method, the analysising and demonstrating aim at the calculation equation of transmission efficiency of CHT-100 type Circulating power of the efficiency transmission gear experiment set. it gives the new concept of equation of gear transmission efficiency.
A User-Engineering Design Interaction Supporting Rational Product Cooperative Design
Authors: Qin Jian Jun , Yao Yan An , Yang Jian Wei
Published: February 2012

To input rational customer requirements into engineering design process more effectively and improve product design quality and market response efficiency, this paper focuses on the interaction between market analysis and engineering design decision for the modular product. While many researchers have successful evaluated and optimized the design schemes, few, if any, have provided a bridge the customer selection and firms product development decision. After a review of the literature we introduce the flow of user-engineering design interaction including both maximize the utility of customer and the profit of the firm. On the user and market analysis flow, customer requirements are defined according to the target market, then the customer selection possibility link to the product attributes by utility function. Accordingly, the alternatives are corresponding to the module different product, and then using decision support problem method to search the optimal design parameters. Two design domains can share the design information and realize the cooperative design process by computer computing platform.
Modal Analysis and Design on the Base Plate of Large-Scale Linear Vibration Screen
Authors: Du Xin
Published: February 2012

Large-scale vibration screen produced modal deformation under the influence of their quality. They often leaded to destruction in the linear vibration screen. This damage often occurred in side plates and screen boxes. Because rivets connected the side plate, it was individually analyzed. There were large deformation of linear vibration screen ZX3175 by computer software COSMOSWorks. The nature frequency of the screen plate was close to the screen source. There were large modal deformations at the edge of the plate. This was the main reason for fatigue damage of the plate. This paper put forward some methods to reduce modal deformation of the base plate.
The Design of CNC Lathe Cutting Force Signal On-Line Monitoring
Authors: Zhao Jian Bo
Published: February 2012

The main task is to study the CNC lathe cutting force signal on-line monitoring system design, it mainly includes the cutting force signal acquisition, real-time monitoring and subsequent processing and analysis. Cutting force signal acquisition is the use of Kistler piezoelectric sensor signal, converted into voltage signal, and through the data acquisition board, to convert analog signals into digital signals, input to the computer, the computer real-time monitoring of machining process. Signal processing is to the acquisition of signal processing and analysis, to obtain the correct dynamic cutting force signal, to verify the stability and reliability of the whole monitoring system.
Design of Hydraulic System of Subsea X-Tree
Authors: Zhao Hong Lin , Yu Jia , Yue Yuan Long , Li Song , Guo Bu Quan
Published: February 2012

Onshore hydraulic systems are not generally applied in subsea production control system,so how to design a special needed hydraulic system for subsea X-tree has been one of the hot research questions.Several specific hydraulic components were analyzed, such as hydraulic power unite,umbilical,subsea control model,hydraulic control valve and valve actuator, and then corresponding hydraulic schematic which can meet the requirements of subsea X-tree is presented.
Analysis and Design of a New Digital Interphone
Authors: Li Hong
Published: February 2012

For is its stablity and reliablity, digital system is widely used in life, and the application of SCM has greatly increased the intelligence of digital system. Firstly, the workng principle of digital interphone chip was introduced, then the control of digital interphone by using single chip was discussed in details.Finally ,the author implementated the hardware design of digital interphone system.
Effects of Al Content on the Microstructures and Oxidation Resistance of Cr1-xAlxN Films Synthesized by Multi-Arc Ion Plating Method
Authors: Cai Zhi Hai , Di Yue Lan , Yang Zhen , Zhang Ping
Published: February 2012

The CrAlN composite coatings with different Al content are deposited on 65Mn steel substrate by multi-ion plating technology. The structure, surface morphology, composition and oxidation resistance of CrAlN composite coatings are tested by XRD, EDS, SEM and oxidation furnace, respectively. The experimental results show that the preferential growth orientation of the coatings was changed from CrN (111) to CrN (200) after the addition of Al element. And the surface roughness of CrAlN coatings increase gradually with increasing of Al content. Compared with CrN coatings, the CrAlN composite coatings show much better oxidation resistance. And the oxidation resistance ability will enhance with increasing Al content, because Al and Cr oxide form after oxidation in high temperature condition which could reduce the diffusivity ability of oxygen.
Back-EMF Zero-Crossing Rotor Position Detection Control of BLDC Motors
Authors: Zhao Xian Kun
Published: February 2012

To compare the similarities and differences between BLDCs and PMSMs firstly, then to present the theory of back-EMF zero-crossing rotor position detection. To propose the control scheme using 56F8013 based on back-EMF method. Finally investigate the research prospect of BLDCS.
The Forming Method of Cylindrical Parts with Bars
Authors: Bai Xi Ping
Published: February 2012

Through analyzing the forming process of cylindrical parts with bars, put forward conditions of such parts upsetting pressure bulging, How to use a mold to complete the forming of such a complex of bars, and describes the structure of the mold and work processes. By reducing the stamping process, improve productivity and reduce production costs, in the application easy to spread, and achieved good economic benefits.
Investigation into Method of Electric Hot Drilling to Minipore
Authors: Xu Lan Ying , Wu Qiang , Mao Yong , Li Yu Zhong
Published: February 2012

Based on the electric hot method has been applied to turning effectively, this paper analyzes electrical properties of the electric hot cutting micro area, according to contact resistance theory the electrical conduction model of cutting micro area is established, electric hot method applied to minipore drilling of hard-to-cut materials is discussed, it develops a set of electric hot drilling device which is simple and flexible. Under the conditions of the same drilling parameters, electric hot drilling tests and ordinary drilling hole experiment are researched contrastively. Test results show that axial force and torque of electric hot drilling experiment are reduced obviously than that of ordinary drilling holes experiment. Electric heating method applied in drilling process is very effective.
Application of ACO-SVM in Chinese Text Feature Selection
Authors: Cui Jin Xiu , Huang Xiao Xia
Published: February 2012

The algorithm proposed in this paper applies ACO in combination with support vector machine (SVM) in Chinese text feature selection. It obtains classifier models for each category at last. The experimental results show that the proposed method is feasible and lead to a considerable increase of classification accuracy.
Study of Residue Stress and Phase Structure of c-BN Films with BNx Implanted Buffer Interlayer on High Speed Steel Substrate
Authors: He Jia Wu , Cai Zhi Hai , Di Yue Lan , Yang Zhen
Published: February 2012

In this paper, the influence of the BNx implanted buffer layer on growth and residue stress of c-BN films were mainly investigated. The experiment results showed that the introduce of BNx implanted buffer interlayer can increase the c-BN content in the films and reduce the residue stress obviously. When the nitrogen dose was 9.6×1017 N+/cm2, the residue stress of c-BN films reached the least value of 3.0GPa. AFM showed that the surface of the c-BN film on the BNx implanted buffer layer is low in roughness and small in grain size. XPS analysis results show an interfacial mixing in the buffer layer have an even N/B distribution. And the surface of buffer interlayer was mainly in BN phase, which is the main reason to improve the growth conditions and reduce the residue stress of c-BN films.
Research on 10.6μm Laser Disturbance to Infrared Detector System
Authors: Liu Yan Wu
Published: February 2012

In order to research laser weapon soft damage to infrared missile, 10.6μm laser disturbance to infrared detector system was researched. First, 10.6μm laser atmospheric propagation transmittance was deduced. Laser atmospheric propagation transmittance relation curve was obtained. The relation curve is changed by atmospheric visibility and laser propagation distance. Then the experiment about on-axis laser disturbance to charge coupled device imaging detectors system was conducted. Charge coupled device saturation power density was measured. The relation curve between charge coupled device saturation area ratio and laser incident energy was obtained. Finally, 10.6μm laser energy which can disturb effectively infrared detector system was calculated. Some valuable data and conclusions were gained.
Hail Identification Analysis from Radar Image by CNN
Authors: Li Guo Dong , Wang Xu , Zhao Fei , Xu Wen Xia
Published: February 2012

Cell Nerve Network (CNN) has been used to process the cloudy radar image. And then we use mathematic to diagnose the cloudy is hail or not. Veins is useful in diagnose the hail cloudy in weather forecast. The veins of the radar image have been picking up according the CNN. And then find the regular polynomial to processed radar image .Then analysis the image with polynomial fitting. We enlarge eight times of the key part of the radar image, and then detect the edge of the image. Dug some data as information .At last we find some regular to distinguish the cloud with hail or not. We find those are useful way for forecasting of hail.
An Adaptive Image Fusion Method Based on NSCT and AGA
Authors: Li Jun Feng , Dai Wen Zhan
Published: February 2012

Nonsubsampled contourlet transform (NSCT) provides flexible multiresolution, anisotropy, and directional expansion for images. When the NSCT is introduced to image fusion, more information for fusion can be obtained and the impacts of mis-registration on the fused results can also be reduced effectively. Therefore, the NSCT is more suitable for image fusion. Based on NSCT and adaptive Genetic Algorithm (AGA), this paper proposes a new adaptive fusion method. This method can optimize decomposition level of the NSCT, lowpass subband coefficients and bandpass directional subband coefficients of the fused image. Finally, the algorithm is tested and compared with existing algorithms. The results show that the algorithm can produce high-quality fused images rapidly.
Studies on Nanoscale Sliding Contacts of Textured Surfaces by Multiscale Method
Authors: Tong Rui Ting , Liu Geng , Liu Lan
Published: February 2012

Coupled molecular dynamics simulation and finite element method, a multiscale method is used to model nanoscale sliding contacts problems. According to an experimental sample, 4 textured surfaces with different asperity shapes are designed. Through the friction forces comparisons between smooth surface and textured surfaces, the effects of texture shapes are investigated, and 2 better textured surfaces are discovered to reduce friction forces.
Application of Composite Materials on Sports Equipments
Authors: Wang Jin Liang
Published: February 2012

The paper briefly summarizes the application of composite materials on various sports equipments, especially the specific application on table tennis bats and tables. The paper explains the good properties of composite materials shown in the table tennis bat in detail through a data analysis. It has an important significance on the improvement of table tennis. Through table tennis, the paper shows the wide and profound application of composite materials in the field of sports equipments.
Steady-State Voltage Stability Enhancement by Using Nonlinear Participation Factor
Authors: Zhang Jing , Jiang Ting Ting , Mei Sheng Wei
Published: February 2012

Reactive power plays a key role in the power systems operation and stability. By using theory of normal forms of diffeomorphism, this paper proposes an index of bus voltage nonlinear factor, used to measure the effect of buses to the steady-state voltage stability. In order to verify the effectiveness of the proposed method, case studies are performed using the New England 39-bus power system. At the view of steady-state voltage stability enhancement, the results show that the bus voltage nonlinear factor is an effective index. It can give the correct indication of reactive power compensation dispatch.
Vehicle Dynamic Analysis and Fatigue Prediction
Authors: Chen Jia Shiun , Hwang Hsiu Ying
Published: February 2012

This research was to predict the life of vehicle components on an uneven random road. Flexible-body dynamic simulation was used for dynamic simulation and stress recovery. Based on the stress obtained from dynamic simulation, a fatigue life prediction was implemented. This process combined dynamic simulations and finite element analyses (FEA), including the interaction between dynamic forces and structure deformation. Comparing with traditional approach, dynamic and FEA calculation performed in sequence and separately, the proposed process could obtain more accurate structure stresses and better fatigue life prediction. With that, the production development time and cost could be significantly reduced.
Asymmetric Change in Three Dimensional Magnetic Fields of Bearing Steel (JIS-SUJ2) under Spherical Hertzian Contact
Authors: Kida Katsuyuki , Uryu Megumi , Honda Takashi , Santos Edson Costa , Saruwatari Kenichi
Published: February 2012

Flaking failure of bearings is caused by crack growth and stress concentration. The contact conditions between ball, retainer and race affect the durability of the bearings. Non-destructive methods that can be related to contact conditions are necessary to study and understand the phenomena caused by the contact stresses. In the present work, a scanning Hall probe microscope (SHPM) equipped with a GaAs film sensor was used to observe the asymmetric distribution of three-dimensional magnetic fields in bearing steel plates (JIS-SUJ2) before and after light load contact tests of 19.6N. It was found that only vertical components of the magnetic fields are slightly affected by the spherical Hertzian contact. Furthermore, the change in the three-dimensional magnetic fields is asymmetric to the contact center and magnetization center.
Image Retrieval Based on Edge Detection and Histogram
Authors: Dong Wei , Tang Yan Dong
Published: February 2012

Based on the existing algorithm, improved mathematical morphology for image retrieval, a new method, using the combination of edge magnitude histogram and edge angular histogram, was proposed in this paper. Analysis and experimental results reveal that the proposed algorithm has a superior image retrieving performance.
Sentiment Analysis of Comparative Sentences for Chinese Document
Authors: Wu Guo Shi , Wu Xiao Yin , Wei Jing Jing
Published: February 2012

One of the most widely-studied sub-problems of opinion mining is sentiment classification, which includes three study levels: word, sentence and document. At the third level, most of the existing methods ignore comparative sentences which have particular sentence patterns and may lower the precision of the document-level analysis. This paper studies sentiment analysis of comparative sentences. The aim is to determine whether opinions expressed in a comparative sentence are positive or negative. Experiments of comparing with document-level sentiment analysis based on simple sentences shows the effectiveness of the proposed method.
Analysis of the Optimal Value for Transmission System of Reactive Load Compensation
Authors: Lu Di , Wang Jian Xin , Li Jia Feng
Published: February 2012

In this paper, Describing the type and characteristics of transmission system’s reactive power compensation. The purpose of reactive power compensation can improve system power factor, reduce losses, improve power quality and reduce the capacity and investment of the power equipment system. It especially discussed the increase of reactive power, which can increase the wastage of transmission system; at the same time enhance the voltage decrease. In order to decrease main equipment’s wastage of reactive power—wastage of electromotor, got the optimal charge ratio and efficiency of electromotor. Calculated the absorbed value of reactive power of transformer by the given charge, and got optimal charge ratio of transformer. And it discussed the compensation from non-uniformity net to uniformity net, and the work principle of system compensation. It would make the transmission line’s power with the lowest wastages under condition of fixed charge value and web structure. Through the configuration software development, can make the system more secure and reliable.
Lagrangianlized Nonlinear Dynamic Equation of Timoshenko Beam and Application
Authors: Tan Pei , Chen Lian Wang , Li Yu Jiang
Published: February 2012

Base on Hamilton's principle, under the continuity conditions of generalized coordinator, generalized force and the deformation, provide nonlinear deformation problem of Timoshenko beam’s Lagrangianlized basic elastic equation and its generalized boundary condition. Lagrangianlized basic elastic equation makes it possible to avoid indirect problem for the variation principle of continuum, which not only simplify the solving of direct problem but also stylize the solving process. The YUQING ancient bridge (in ShangHai) is taken as an example, calculating the kinetics characteristics and making damage diagnosis combined with the pulsation experimental result data.
Edge Tracing of T-Shirt by Robot for Spreading Purposes
Authors: Mohamed Sahari Khairul Salleh , Seki Hiroaki
Published: February 2012

Edge tracing is considered important for deformable object manipulation in order to spread and reveal the original shape of an object before it can be sorted. This paper proposes a unique tracing method for t-shirt spreading by robots. Tracing in this paper context involves tracing the edge of the t-shirt, with the robot arm movement based on feedback from sensors. Adequate force control is also applied to the tracing gripper during tracing so that it doesn't grip the fabric too hard or vice versa which can affect the performance of the robot. Vision sensor is used from time to time to check whether the tracing gripper has reached a corner or not. Based on the algorithm used for towel spreading, algorithm for edge tracing of shirt to find a second or third corner is proposed. The method is simply looking at possibilities of tracing through corners, changing tracing trajectory as well as tracing on two layers of fabric. Practical experiments were conducted to evaluate the proposed method.
A Best Relay Based Cooperative Spectrum Sensing Scheme
Authors: Li Mei Ling
Published: February 2012

In this paper, an object based cooperative spectrum sensing scheme with best relay (Pe-BRCS) is proposed, in which the best relay is selected by minimizing the probability of reporting error to improve the sensing performance. Numerical results show that, the Pe-BRCS can make the reduced reporting error probability and the improved sensing performance compared with the cooperative spectrum sensing scheme with best relay by maximizing the received SINR.
Design of Oscillator for PWM Controller
Authors: Wang Xiao Yan , Liu Jian Ping
Published: February 2012

An oscillator is designed for PWM controller chip. The resistance Rt and capacitance Ct for oscillator are located outside the chip to adjust the frequency expediently. The circuit is simulated by CADENCE Spectre, and the simulation results show that the frequency of the oscillator is 52.84KHz (at Vcc=15V), voltage stability is 0.4%. The layout is done based on the process flow and layout levels of bipolar 45V process provided by HUAYUE Microelectronics Company. The test results prove that the oscillator present in this paper meets the design requirements.
Applications of Association Rules in Computer Crime Forensics
Authors: Tan Yue Sheng , Qi Zhan Sheng , Wang Jing Yu
Published: February 2012

Association rules can mine the relevant evidence of computer crime from the mass of data and association rules among data items, and further mine crime laws, trends and connections among different crimes. It provides police’s case detection and crime prevention with clues and criterions. This paper firstly analyzes the application of FP-Growth algorithms in computer crime forensics, points out the defect of FP-Growth algorithms that can’t timely find the latest crime and the serious crime, and then puts some improvements of the FP-Growth algorithms and tests it by carrying out experiments. Finally, it points out the future research aspect: extraction and correlation of multidimensional evidence.
Study on Vehicle Routing and Scheduling Problems in Underground Mine Based on Adaptively ACA
Authors: Gu Qing Hua , Jing Shi Gun
Published: February 2012

For vehicle routing optimization problem in the underground mine, a famous NP- Hard problem is put forward. This paper uses improved ant colony algorithm (ACA) to solve the problem. Basic ant colony algorithm (ACA) has many shortages, such as long searching time， slow convergence rate and easily limited to local optimal solution etc. The improved ant colony algorithm is proposed to overcome these shortcomings and improve its performance adaptively. In every iteration of the ant colony algorithm, adaptive evaporating coefficient is selected to control the convergence rate at first. And the power of this approach was demonstrated on a test case. The results derived from basic ACA and the improved ACA are compared and analyzed in the experiment. It proved that the improved ant colony algorithm is effective
Distributed Attitude Consensus Control of Multiple Homogeneous Spacecrafts While Preserving Connectivity
Authors: Zhang Ying Chun , Zhang Fan , Zhang Shi Jie , Zhong Wei Chao
Published: February 2012

In this paper, a distributed attitude consensus control law has been proposed in the context of multiple homogeneous spacecraft formation flying only through local interactions while the GPS and antenna are denied. One of the engineering problems of implementing the aforementioned spacecraft formation is that some relative measurement sensors, e.g. the camera, have limited field-of-view (FOV). It raises that the maximum relative attitude of any two neighbor spacecrafts in the formation should not be greater than the constant attitude deviation determined by the FOV of these immobile sensors during formation maneuvers and keeping. Our approach to this problem is based on the state-weight strategy for network consensus problems, which has been a little investigated in the literature. We present a leaderless distributed attitude consensus control law such that all the attitudes of the formation flying spacecrafts can globally reach consensus, and the connectivity of the interconnected commination topology is strictly preserved. Throughout this paper, the interconnected communication topology is assumed to be undirected. Simulation results demonstrate the effectiveness of the control law. The future research has been discussed in the end.
Vehicle Parameter and Road Grade Estimation Based on Kalman Filter: Theory and Experiments
Authors: Cheng Ming , Wang Zhe , Tao Gang
Published: February 2012

Road slope and vehicle parameter is of great importance in vehicle control. In order to estimate the on-line road grade, an accelerometer is mounted on a vehicle. A state-space model for the Kalman Filter is established. And R and Q matrix of the filter is tuned offline to optimize the filter. By experiments, the feasibility of the model as well as the algorithm is verified to be able to estimate the road grade online with precision and little delay. Other vehicle parameters can therefore be estimated with the road grade.
The Emissivity of the Casting Surface
Authors: Chen Liang , Xu Shao Lin , Zhang Guo Hua , Xia Zhong Wu
Published: February 2012

According to electromagnetic waves theories, emissivity modeling of a layered casting surface has been developed to elucidate the different emissivity during the growth of oxide film. Through test detection a angle where p-polarized emissivity assumes a peak value is between 60°-80°. Emissivity stabilized when the growth of oxide film is enough. The conclusion provides an important theory for the design the temperature measurement equipment on the surface of casting.
Research for Control System of Four-Axis Automatic Winding Machine
Authors: He Cheng
Published: February 2012

This paper introduces a specific object-oriented, feature-rich four-axis automatic winding machine control system. It analyzes the structure, control requirements and motion regulation of the winding machine. It builds the mathematical model of the servo motor and the system, builds the experimental platform. Multiple sets of experimental data and curves are obtained after several experiments. The control system for winding machine, is reliability, and can greatly improve production efficiency.
Design of Electric Vehicle Energy Regenerative Braking System Based on Super Capacitor
Authors: Feng Qing Sheng , Li Hong
Published: February 2012

The necessity of the electric vehicle using energy regenerative braking system is described in this paper. Then the design process of the braking system with the super capacitor was discussed and the determination method and the control mode of the main technical parameters was analyzed. Using the system the electric automobile can realize regenerative braking in any common condition especially when the conventional regenerative braking can not be achieved. Under these circumstances the electric energy which is generated by braking process and stored in the super capacitor can output to the traction inverter DC link when the automobile is in the traction mode .So it is a good way to significantly reduce the electric vehicle energy consumption.
Study on Tensile Strength of Composite Double-Lap Joint
Authors: Liu Sui , Guan Zhi Dong , Guo Xia , Yan Dong Xiu , Chen Ping , Liu Jia
Published: February 2012

An experimental and analytical study on ultimate tensile strength of composite double-lap joints with different adhesive thicknesses is employed in the paper，test results indicate the major failure mode of joints is adhesive shear failure and the ultimate strength of joints increasing with thicker adhesive. Analytical model is developed to investigate the adhesive failure of double-lap joint based on the experiments. The model takes into account anisotropy of each ply in the composite laminates and elastic-perfectly plastic behavior of the adhesive in the joints. The validity of analytical model for calculating shear strain/stress distribution is certified by comparing with finite model results. Maximum shear strain criterion is adopted in the analytical model to predict the ultimate tensile load of double-lap joint. Good agreement of the analytical predictions with the experimental results is obtained.
The Analysis for the Storage of Difficult Bulk Materials with Central Cone Silo
Authors: Meng Wen Jun , Hong Tian Wei , Bian Hai Tao
Published: February 2012

To design high quality and efficiency discharging system, according to the analysis of strength and the study of discharging principle for bulk materials between general silo and central cone silo with discharge arms, their theoretical model and simulation model are established. Based on the theoretical calculation and simulation results, it is proved that the central cone silo which has a rotary discharge arm or discharge arms revolving around the central cone has advantages with discharging the difficult bulk materials, which could efficiently prevent the harmful discharging such as bridging, rat-hole and so on. Controlling the outflow of bulk materials, it is easy to automatically discharge the bulk materials and improve the efficiency of silo system. The result shows that the central cone is practical and the discharging way provides a new program for solving technology problems in discharging the difficult bulk materials.
Study on the Mechanical Properties of Cement Modified by Nanoparticles
Authors: Liu Xiao Yan , Wang Xin Rui , Liu Ai Hua , Chen Lei
Published: February 2012

In this paper, nano-SiO2 (NS), nano-Al2O3 (NA) and nano-CaCO3 (NC) were used to improve the mechanical properties of cement. Experimental results showed that the early hydration of cement was promoted by all of these three nanoparticles. When the content is 1%(NS), 2%(NA) and 1%(NC), respectively, the mechanical properties of cement got the best modification. Different nanoparticle had its own optimal content concerning modify the mechanical properties of cement. When the content was larger than 3%, nanoparticles nearly had no modification to cement and cement exhibited lower strength comparing with blank cement.
Jam Status Monitoring System in Manufacturing System Environment
Authors: Jeong Hwa Young , Kim Yoon Ho
Published: February 2012

Manufacturing system was constructed and operated by many components; motors, cylinders, and sensors. And it has purpose to increase operational performance without system error, jam. Therefore the monitoring system to observe the system jam or problem is important factor. In this paper, we aim to develop monitoring system to watch the manufacturing system when it runs. And proposed monitoring system is able to support function that manufacturing system can operate without system jam or to reduce system error, to user or manager in the factory
Rapid Classification of Softwood and Hardwood by Near Infrared Spectroscopy of Wood Tangential Section
Authors: Yang Zhong , Liu Ya Na , Lv Bin , Xie Xu Qin
Published: February 2012

Due to the shortage of wood resource, manufacturers often use the wood raw materials mixed with softwood and hardwood. Rapid classification and ratio prediction of softwood and hardwood during processing is important to quality control. The feasibility on rapid classification of softwood and hardwood by near infrared spectroscopy (NIR) was investigated in this paper. The results showed that: 1) the classification accuracy of the calibration set samples was 100%. The correlation coefficient (r) between the NIR predicted and the true category variable value was 0.98～0.99 with low SEC of 0.06～0.11; 2) the classification accuracy to the unknown samples was 100%. It was suggested that near infrared spectroscopy can be used to rapidly and accurately classify softwood and hardwood samples.
Investigation on Wear Behavior at High Temperature of Smooth and Bionic Non-Smooth Samples
Authors: Yang Xiao Dong , Yang Zhuo Juan , Chen You Quan
Published: February 2012

By using pin-on-disk wear test method, the wear behavior of W9Gr4V high speed steel with smooth and non-smooth concave samples which treated by laser texturing technology was investigated between room temperature and 500 . It was found that the anti-wear ability of the non-smooth concave samples was increased more than that of the smooth ones and the anti-wear ability of the non-smooth samples was evident than the smooth ones at temperature increasing. In this paper, the anti-wear mechanism of non-smooth concave samples and wear characteristics with smooth and non-smooth samples in high-temperature were analyzed.
FEM Analysis of Large Load and Long Span Suspended Platform Based on APDL
Authors: Zheng Xi Jian , Zhao Xiang Yun , Gao Xing Liang
Published: February 2012

In this subject, the Analysis Parametric Design Language (APDL) was used to process the parameterized finite element model of large load, long span suspended platform and simplify the structure model of suspended platform, Coupling and constraint equation was established to process the special connected construction .Study the influence of the suspended platform construction and the structure section change on the integral structure. Determine the analysis schemes of the different section, obtain the stress distribution and the structural deformation of the platform structure. Aimed at the least weight of the suspended platform structure, analyze the influence of every main structure section，the lacing bar and the web members arrangement on the suspended platform structure to provide references for the design and analysis of the large load, long-span suspended platform structure.
Evaluation of DBPs Formation Potential during Chlorination of Dissolved Organic Matter Fractions Isolated from Eutrophic Water
Authors: Luo Jin Hong , Zheng Bing Hui , Fu Qing , Zhao Xing Ru , Liu Yan , Huang Min Sheng , Chen Yu Hui
Published: February 2012

Dissolved organic matter (DOM) in water from eutrophic water source was isolated into four classes as hydrophilic substances (HIS), hydrophobic acids (HOA), hydrophobic neutrals (HON), and hydrophobic bases (HOB). The formation of Trihalomethanes (THMs) and Haloacetic acids (HAAs) in chlorination of different DOM fractions was evaluated. The dominate species of THMs and HAAs were chloroform (CF) and trichloroacetic acid (TCAA) in the chlorination of raw water. There were close linear relationship between THMs/HAAs yields and SUVA254 values. Increasing of contact time and chlorine dosage enhanced the formation of THMs/HAAs yields from different DOM fractions. The increase of pH leads to more formation of THMs, and the highest production of HAAs was observed at pH 7.
Dynamic Characteristics of Belt Conveyor Based on Virtual Prototyping
Authors: Du Dong Mei , Zhu Chun Shui , Li Hong , He Qing
Published: February 2012

Belt conveyor is main transportation in coal-fired power plants. The traditional static design method that considering less actual working condition is main method in designing belt conveyor, and the method using the virtual prototype technology to design product can save cost while improving efficiency, but also use dynamics method to improve products. Build belt conveyor basic system that based on a certain type of belt conveyor, it is accomplished by using simulation software and conveyor belt discretization method. It can be obtained that virtual prototype technology is feasible and effective in belt conveyor dynamic design. By discussing the tension characteristics of belt conveyor, obtain the position of maximum tension and the tension distribution which have guiding significance for designing and maintaining belt conveyor.
Research on Measurement of Pulsed-GTAW Process by Multiple Sensors
Authors: Chen Bo , Zhang Hong Tao , Chen Shan Ben , Feng Ji Cai
Published: February 2012

Welding process is a non-linear, multi-variable and time-varying process accompanied by many interference factors such as dust, intense arc and electromagnetism, so it is difficult to obtain accurate information reflecting the welding process status, let alone controlling the process precisely. This paper used arc sensor, sound sensor and visual sensor simultaneously to obtain different information of the pulsed-GTAW process, and SVM was used to fuse the information to predict the quality of the welding process, experiment results showed multi-sensor information fusion could predict the process more precisely. This laid the foundation for further controlling the welding quality automatically and intelligently.
Customized Titanium Plate Virtual Design and Deformation Simulation Analysis of Human Lateral Mandible Defect
Authors: Wu Wen Zheng , Zhao Ji , Zhang Lei , Feng Nan , Rosen David W.
Published: February 2012

Aiming to improve the defect mandible reconstruction operation success rate, the original mandible and fibular 3D model were modeling separately. According to the patient’s virtual reconstruction mandible 3D model, the mandible customized virtual ti-plate was designed and modeling. Through comparing the deformation simulation analysis of reconstructive mandible, the maximum deformation occurred near the mandible midline. There was little deformation at bilateral mandible ramus posterior. As the loading on the reconstructive mandible increasing, the maximum deformation near the mandible midline was increasing. According to the customized titanium plate virtual design and deformation simulation analysis of human lateral mandible defect before operation, the simulation could predict the mandible maximum deformation position after the surgery. The doctors could improve the operation precision of mandible reconstruction and probability of success significantly.
Multidisciplinary Collaborative Satisfaction Negotiation Based on the Physical Programming Method in Product Design
Authors: Zhou Jian Hua , Chen Liang , Wang Wei , Huang Bin
Published: February 2012

The importance of collaboration between different design disciplines has been widely researched. Traditionally this is achieved through multidisciplinary design optimization approach. By analysis of the technical problems, this paper provides a new method to facilitate collaborative design, which is based on physical programming and a well-organized negotiation process helps designers rapidly reach a consistent solution. Finally, a design example of hydrodynamic bearing is illustrated to prove the effectiveness of the proposed method.
Optimal Deployment Model for near Space Bistatic Radar Network
Authors: Wang Shen Shen , Che Wan Fang , Feng Jin Fu , Wang Fang Nian , Xie Qi Feng
Published: February 2012

The optimal deployment model and algorithm for near space bistatic radar network are discussed in this paper. Firstly, the coverage rate is analyzed, and the optimal deployment model is established. Then, the standard particle swarm algorithm is improved. Initial position and velocity of every particle are created by the chaos algorithm, and the individual and global extremes are disturbed with some probability in the optimization, which are advantageous in achieving a faster and globalized search of particles. Finally, the improved particle swarm algorithm is used to solve the optimal deployment issue. Simulation results demonstrate the validity of the proposed model and algorithm.
Wisdom Health Care Environment Systems for Monitoring and Automated Control via RBF Function
Authors: Sung Wen Tsai , Chen Jui Ho , Wang Hsi Chun
Published: February 2012

Undertake the study of the topic home monitoring system, the wisdom of building the health care environment monitoring and automation control systems, sensor signal is transmitted through ZigBee wireless technology and NI data acquisition card to do transfer cable transmission technology. In addition, an infrared remote control technology for automation and control for air conditioning. Improvements in the system developed sensors were temperature, humidity, carbon monoxide, illumination, and sensor signal transmission through wireless technology and cable transmission technology, to the terminal for processing, record, query and other features, then the terminal through RS -232 assigned for IR control module control packets, and output through PPM IR code to the IR receiver, and thus control of indoor air conditioning.
Effect of Two-Stage Double Peak Aging on Microstructure and Properties in 7050 Aluminum Alloy
Authors: He Chang De , Ren Jian Ping , Xu Bing
Published: February 2012

The age-hardening precipitation of double peak during two-stage aging process in 7050 aluminum alloy is studied in this paper. The results show that the first peak is strengthened by high-density GP zones, whereas the second aging peak is mainly strengthened by h¢ phases with a certain size, which suggests that the strengthening effect of both h¢ phases and GP zones are better than that of individual GP zones.
Structural Design for Dynamic Roller Device in Transporting Unit of Biomass Pyrolytic System
Authors: Wu Jun Hui , Zhou Quan , Chen Jie , Si Hui Ping , Zhang Chi Bin
Published: February 2012

With the full study of industrial process control technology for thermal, chemical industry, the application process, the FCS system of biomass pyrolysis unit was development combined with the actual. Feeding system uses the weighing system of dynamic belt with an advanced embedded technology. The computing speed and accuracy, data processing compared with traditional electronic belt scale, information exchange, integration, reliability and stability will be greatly improved. The technology shall be constantly upgraded and vigorously promoted. The frame structures of dynamic roller were various in forms. Different systems can be used to the frame with different scale structures. The suspension of multi-scale frame of the roller was used widely currently. The modeling and structural optimization of the frames in reasonable scale were designed with reducing the use of metal materials, optimizing the overall performance of mechanical systems and improving the weighing accuracy. The analysis of dynamic roller in scale weighing and speed principle, the establishment of a multi-roller single floating frame structure of the scale model and the analysis of the roller of the force were built. The verification in final design through the ANSYS software is reasonable.
Research on Spiral Drill Stabilizer Wear-Resisting Layer Repair Technology
Authors: Zhang Gao Wei , Zhang Guan Wei , Zhang Qing
Published: February 2012

This paper introduced the repair methods of wear-resistant layer of the drilling tool stabilizer, and proposed a simple fitting method for spiral drill stabilizer wear belt, fitting of spatial spiral surface is essence of the space spiral curve fitting, for a pitch fixed spiral can be expanded to two-dimensional line, and then using interpolation technique can control drill stabilizer and repair work head of joint motion, the synthesis of these two motions is the space spiral.