bluuebunny/crossref_metadata_2025 huggingface dataset:
Optimum Design of a Parabolic Flexure Hinge Based on Compliance Closed-Form Equations
Authors: Hu Jun Feng , Li Pei , Cui Xiang Fu
Published: January 2012

Considering the increasingly wider applications of flexible hinge in the fields of micro-electromechanical and micro-positioning etc., the optimal design method of a parabolic flexible hinge is presented. According to the structure feature and force exerted on the flexible hinge, the closed-form flexibility expressions in the working and non-working plane can be derived by using the Castigliano’s second theorem. Meanwhile, the accuracy analysis of the parabolic flexure hinge is performed. The rotation angle of flexure hinge in the working plane is treated as objective function, and the constraints of optimization model are displacements in the non-working plane and one described the accuracy of hinge, such that the optimization model expressed performance requirements of flexure hinge can be established. Based on the optimization model, the optimization designs of parabolic flexure hinge are accomplished to acquire the optimized structural parameters. In conclusion, the study on the optimization design of the parabolic flexure hinge can provide a theoretical basis for its engineering applications
A Wavelet-Based Watermarking Algorithm Using the Human Visual System
Authors: Chen Yu Feng , Yin Gang
Published: January 2012

A wavelet based multiresolution watermarking method using the human visual system (HVS) is proposed. The watermark is added to the large coefficients at the middle frequency bands and low frequency band of the DWT of an image. The experimental results show that the proposed method is robust for some common image distortions, such as cutting, filtering and the JPEG compression
A Method of License Plate Chinese Character Recognition Based on Image Quality
Authors: Chen Yu Feng , Yin Gang
Published: January 2012

This paper presents a method of license plate Chinese character recognition based on image quality for improving the recognition rate of low-resolution characters in license plates. Each subset of license plate Chinese character images with the same fuzzy degree are used to construct a corresponding PCA subspace, then the projection residuals distance between the Chinese character to be recognized and each subspace in the specific subspaces which are selected by character’s fuzzy degree is calculated. The class which corresponds to the subspace with the minimum distance is the recognition result. The experimental results show that the proposed method has higher recognition rate and faster recognition speed comparing to other ones.
Evaluation of Rolling Bearing Vibration Using Fuzzy Set Theory and Chaos Theory
Authors: Sun Xiao Chao , Xia Xin Tao , Liu Yan Bin , Gao Lei Lei
Published: January 2012

The optimal fuzzy similarity coefficient based on the phase space is proposed to evaluate the rolling bearing vibration acceleration generated by wear on the surface of the ring raceway. The phase space of the time series of the rolling bearing vibration acceleration is reconstructed via the chaos theory, the fuzzy similarity relation between the phase trajectories is established by the fuzzy set theory, and then the optimal fuzzy similarity coefficient is obtained through a reasonable choice of the embedding dimension and the delay. Experimental investigation shows that with the increase of the fault diameter, the optimal fuzzy similarity coefficient decreases nonlinearly
Rotor Current Method of Directional Control of Doubly-Fed Motor Without Speed Sensor Based on Vector Control
Authors: Liu Li Ping , Du Zhi Qiang , Yin Jing Tao
Published: January 2012

This paper presents a current orientation of the rotor doubly-fed motor speed control system of the simple vector control method, mainly through the detection of rotor current to control the rotor voltage and rotor current phase or reversed. When the double-fed speed, if the rotor and the rotor voltage vector vector always super-synchronous operation or sub-synchronous operation, we can guarantee the rotor side of the power factor is 1, which can reduce the capacity of the rotor side converter, reducing system costs. This paper introduces the basic principles of the system and composition, and finally gives the system simulation and experimental results
Discrete Spatial Solitons in the Two-Dimensional Optical Waveguide Arrays
Authors: Chen Hong Yun , Lv Tao , Zheng An Shou , Han Yan Ling
Published: January 2012

We theoretically study light propagation in the two-dimensional arrays of mutually weak coupled waveguides. We study the properties of the discrete diffraction and demonstrate the existence of discrete spatial solitons in such arrays.
Numerical Study on Double Layers Fragment Warhead under Asymmetrical Initiation
Authors: Wang Zai Cheng , Jiang Chun Lan , Chang Zhi Yuan
Published: January 2012

Increasing the velocity and distributing density of fragments through asymmetrical initiation is an efficient way to improve the damage capacity of warheads. This paper will do research on warhead with double layers of fragments under asymmetrical initiation and analyze how the thickness of charge between the two layers will affect the velocity and distribution of directional fragments. Compared with single layer fragments under symmetrical initiation, if the thickness between the two layers is properly disposed, double layers fragments under asymmetrical initiation can double the density of fragments and get a higher fragment velocity in the definite direction simultaneously, which will improve the damage capacity of warheads
Analysis of Soft Rock Tunnel Mechanics Effects Based on Strain Softening Model of Surrounding Rock
Authors: Zhang Jie Hong
Published: January 2012

Aiming at mechanical response of soft surrounding tunnel affected by high stress, the mechanical effect in the process of excavation and supporting of surrounding rockmass was analyzed by softening model. First of all, mechanics properties of soft surrounding rock and strain softening model have been discussed. Then, based on strain softening model, numerical analysis was carried out, and stress and displacement field, plastic range in the in the process of excavation and supporting was obtained. The result was very useful for the optimization of construction design and perfection for supporting program.
Optimization Design of Gravity Dam Section Based on PSO Algorithm
Authors: Hu Liang Ming , Li Yi Zhi
Published: January 2012

Particle Swarm Optimization (PSO) algorithm is a technique for optimization based on iteration, which initializes system to product a series of random solutions, in this solution space, particles commit themselves to search for a better solution and in the final the optimal one is found. Applying this algorithm to the design of gravity dam section then we find: PSO, as shown by the example given in this paper, is an available algorithm which is not only tally with the actual situation, but safe and economical. So, PSO provides a new idea and method for optimization design of gravity dam section.
Research on the Sensory Quality Evaluation of Agricultural Food Based on Linguistic Information
Authors: Zhang Dong Ling , Xu Xiao Mei , Liu Yang , Mu Peng Fei
Published: January 2012

It presents a proposed method for the development of accredited sensory evaluation methods for agricultural food, and shows the application of the linguistic 2-tuple representation model and its advantages. It involved several steps: gathering of sensory information from experts; computing a collective evaluation for each feature; computing collective evaluations for each object; sensory evaluation and quality certification with global evaluation result.
Modeling of Arbitrary Power Level PV Array Based on Circuit Equivalent Mechanism
Authors: Wang Zhang Quan , Chen You Rong , Ruan Yue
Published: January 2012

According to the equivalent circuit of single solar cell and the V-I equation of PV cell based on physical mechanism, a simulation model of single solar cell is established. According to this model and structure feature of PV array, the Thevenin circuit equivalent transform theory is used. The control relationship between single solar cell and PV array is given. Then a simple modeling method for arbitrary power level PV array is proposed. To verify the model effectiveness, a Pspice simulation model is established. Output characteristics of the model and its feasibility in PV power generation system are simulated. Simulation results show that the output characteristics of simulation model are in good consistency with actual PV array, and the model can be effectively applied in simulation of PV power generation system. The modeling method is simple and can be used for simulation on some control algorithms of PV power generation system
Optimization and Validation of an Indirect Competitive ELISA for Detecting Enrofloxacin Residue
Authors: Wu Shi Xiu , Jiang Jin Qing
Published: January 2012

This article aimed to optimize a polyclonal antibody based indirect competitive ELISA (icELISA) and compare between the icELSIA method and the LC-MS technology for the determination of enrofloxacin (ENR) residue. Based on the square matrix titration, linear range of the icELISA was from 0.006 to 31.5 ng/mL, with LOD and IC50 values of 0.003 ng/mL and 0.45 ng/mL, respectively. After optimization, 0.03 mol/L of HCl was used in the assay buffer and this ELISA system can tolerate acetonitrile not higher than 10%. The recoveries of ENR were in the range of 98.3-127.5%, 85.7-112.5% and 97.4-103.8% for chicken muscle, liver and kidney. The correlation coefficients (R2) of the ELISA and LC-MS data were 0.9472 in muscle, 0.9843 in liver, and 0.9382 in kidney, respectively.
Vascular Contour Extraction of MRS Regional Morphology Algorithm Based on Sobel Operator
Authors: Cheng Fang Xiao , Lin Xiao Mei , Dong Na Na
Published: January 2012

Through the study of the traditional vascular contour extraction algorithm, in this paper the means that vascular contour extraction of MRS regional morphology algorithm based on Sobel Operator is proposed. This method comprehensively applying regional growth algorithm and morphologic detection algorithm, and combining with Sobel operator through the correction and contrast enhanced, the result of vascular contour is more accurate and more continuous on this basis, which plays a decisive role. Experiments show that this method not only can effectively extract vascular outline and vascular contour positioning accuracy is higher, but also can effectively reduce the interference of noise to the image , Thereby this method improve the anti-interference ability of contour extraction for image
A Research Review of the Construction Problem of Dynamic Alliance of Project Oriented Small and Medium-Sized Enterprises
Authors: Liu Guo Liang , Liu Shi Tao , Wang Dong
Published: January 2012

This paper takes the project oriented small and medium-sized enterprises as the research object and analyses the importance and necessity, summarizes the connotation of project oriented small and medium-sized enterprises, the stability of dynamic alliances, the performance of small and medium-sized enterprises and the risk management of small and medium-sized enterprises from the theoretical level. This is a basis for further study of construction problem of small and medium-sized enterprises dynamic.
The Research of Dynamic Path Planning Based on Improving Fuzzy Genetic Algorithm in the Vehicle Navigation
Authors: Feng Ping
Published: January 2012

The paper analyzes the influence factors in the process of the vehicle navigation, optimizes the main core technology, the navigation path planning, carries out the fuzzy processing of the influence factors, puts forward the dynamic path planning algorithm based on improving fuzzy genetic algorithm
Research on Inverter Fault Detection and Diagnosis
Authors: Yang Qiao Ling , Zhang Hai Ping , Cheng Juan Juan
Published: January 2012

Power semiconductor devices and its control circuit in inverter of motor speed regulation system is the weak link most likely occurs fault. Fault feature extraction is the key to fault diagnosis.Regarding inverter’s output voltage signal as the characteristic parameters,extracting inverter’s voltage spectrum by using improved windowed STFT,fault detection and diagnosis can be achieved.Simulation results demonstrate the effectiveness of this method
Speed and Rotor Position Identification for PMSM Based on Improved Nonsingular Terminal Sliding-Mode
Authors: Liu Yan Li , Ji Ya Fei , Cheng Ze , Jia Tao
Published: January 2012

In this paper, an Improved Nonsingular Terminal Sliding-mode (INTSM) observer is proposed to estimate the speed of the permanent magnet synchronous motor (PMSM). The Nonsingular Terminal Sliding-mode (NTSM) not only inherits the good performance to track the state error, but also has the characteristic of limited time convergence. However, the conventional NTSM control law is too complex to apply in practice. The INTSM takes the thoughts of the fast Terminal Sliding-mode and uses a new nonlinear term to replace the conventional term. As a result, the new observer owns the characteristics of global fast convergence and simple control law. At last, the proposed method proves to be effective through the theoretical analysis and simulation test.
Quality Control and Supervision of Material in Construction
Authors: Cai Yun
Published: January 2012

The quality of engineering materials, directly affects the whole building quality and grade, structural safety , the external image and use of function after the completion, therefore, the project materials of construction work is the important content of the quality. Combining the working experience with the practice, this paper makes a discussion on quality control and supervision control of building materials.
Development and Analysis on Energy Conservation Equipment and Control Technology of HVAC
Authors: Sun Jian Min , Zhang Chun Dong
Published: January 2012

In building, the energy consumption of heating, ventilation and air conditioning (HVAC) is the largest, which accounts for forty to sixty percent of the total building consumption. So it is a key research to reduce the energy consumption of the HVAC system for saving building energy. This article describes a variety of energy conservation equipment of HVAC, and describes in detail the principles of each type of equipment. This article also analyzes the growing advanced control technologies for the HVAC system. In conclusion, HVAC equipment is developing in the direction of clean energy and energy efficient; intelligent control technology is more applicable to the varying parameters of complex system such as air conditioning, is more energy conservation and will become the leading direction of research and application
Improvement of Running Tunnel Based on OSPF TE
Authors: Wang Chong Wen
Published: January 2012

In the existing traffic engineering, information can only be transmitted in a single OSPF area. When there are multiple OSPF areas, the tunnel is difficult to establish. For this problem, combined with the existing OSPF technology on three categories LSA processing flow, in the right less impact on the relevant modules of the situation, solutions are proposed to achieve a particular area of traffic engineering information across the region spread to other regions in order to facilitate the establishment of range of the tunnel.
Correction Technology and Development on Active Power Factor
Authors: Hu Xue Mei , Zhang Guo Tong
Published: January 2012

Correction Technology on active power factor is now widely used in AC-DC power supply circuit to eliminate harmonic of power system, to improve the power factor. Firstly the method of power factor correction technology is set out. Secondly, the basic principle of active power factor correction technology is analyzed, then the control method for active power factor correction technology is given. Finally the development trend of active power factor correction technology is analyzed.
The Influence Analysis of Globular Indexing Cam Mechanism Size Parameters on Transmission Performance
Authors: Chang De Gong , Li S.M. , An Cong Feng
Published: January 2012

The globular indexing cam mechanism is a kind of high-speed and high-precision indexing mechanism, widely used in the field of mechanical transmission, which has the character of smooth transmission, high-precision indexing, large transfer torque, wider choice of dynamic and static ratio, simple structure and low cost, etc. In this paper, the working principle and the main movement parameters of globular indexing cam mechanism are analyzed, and the dynamics simulation of this mechanism is done by using ADAMS dynamic simulation software to analyze the influence of size parameters on the transmission performance, which provides reliable theoretical basis for understanding the property and designing the parameter of globular indexing mechanism.
Dynamics Simulation Analysis of Roller Gear Indexing Cam Mechanism with Friction Gap
Authors: Chang De Gong , Zong R. , An Cong Feng
Published: January 2012

Based on multi-body dynamics theory, this paper uses ADAMS to carry on the dynamic simulation for assembly model of roller gear indexing cam mechanism in the case of frictionless and consideration of friction gap, detailed analysis of the gap generated by friction has influence on contact transmission of cam mechanism, and obtained the movement rule curves of angular velocity and angular acceleration and some valuable conclusions. It provided theoretical basis and reference for the subsequent design and research of roller gear indexing cam mechanism.
Finite Element Analysis of Cutting Force and Burr Formation in Micro-Cutting of Titanium Alloy Considering Tool Edge Radius
Authors: Dong Da Peng , Zheng Xiao Hu , Chen Ming , An Qing Long
Published: January 2012

In recent years, with the development of machinery industry, micro-cutting technologies have been gradually moving into engineering realization. The paper carries out a series of works on simulation modeling of micro-cutting of Ti-5Al-5V-5Mo-3Cr considering tool edge radius. Unlike conventional cutting, in micro-cutting the effect of tool edge radius which has a marked impact on cutting force, specific cutting energy, burr formation and burr size can no longer be neglected.
Multi-Objective Optimal Design of Helical Gear Transmission Based on the Theory of Grey Classification
Authors: Liu Hai Lan , Li Xiao Ping , Rui Yan Nian
Published: January 2012

Grey Classification is a method which can judge and analyse the matters in the Grey System. It is more reasonable and practical than other Optimal Design. By study of Grey Classification and the traditional method of multi-objective optimal design of helical gear transmission, we found out the most satisfied results.
Research of Bionic Design on Tools with Chewing Mouthparts of Insects
Authors: Zhang Kai , Ji Bao Zhong , Liu S.W. , Qing Zhen Hua
Published: January 2012

Bionic design is a new method in engineering design. The mouthparts especially for the chewing ones of the insects are discussed in this article. To improve the tool life and cutting properties are always the critical for the cutting tool design aim. The foreground of cutting tool design is discussed using the mouthpart of insect as bionic design object. The basic structure of the chewing mouthpart, type of mandibles, geometry, hardness, and element contained, moving mechanism and so on will be described. The research can also make direction at new tool material and tool geometry parameter design.
Research on Ellipsoid Drill Point’S Molding Simulation and the Influence Factors of the Key Structure Angles
Authors: Li Chao , Chen L.
Published: January 2012

This paper presents the 3D molding simulation of the ellipsoid drill point based on the mathematical model, and the influence factors of the drill point’s key structure angles were searched. The quantificational relations between the key structure angles of the ellipsoid point and its molding configuration parameters were presented. Variation trend of the drill point’s structure parameters affected by it’s molding parameters are given for design and optimize the ellipsoid drill point.
Research on the Propagation of the Crack Parallel to and Lying on the Interface in the Cermet Cladding Part
Authors: Yang J.R. , Wang X.F. , Zhang Y.K. , Li Z.Q. , Huang C.Z.
Published: January 2012

Taking the interface crack in the cermet cladding part as the study object, a new comparative propagation property parameter (CPPP) CP suitable to judge the interface crack propagation direction in the cladding part is proposed. The interface crack propagation criterion is established. Based on it, the theoretical research on the parameters (CP1, CP2 and CPi) for the crack parallel to and lying on the interface propagating to the clad, to the substrate, and along the interface is carried out. The interface crack propagation law is investigated with an example. The research results show that the crack will more easily deflect to the clad.
Research on Thermal Error Modeling of YK3610 Hobbing Machine
Authors: Guo Qian Jian , Yang Jian Guo
Published: January 2012

Thermal error modeling. Neural network. Gear hobbing machine. Error compensation. Abstract. Four key thermal sources of YK3610 hobbing machine were selected in this paper, and a thermal error model based on the four temperature variables was proposed by using back propagation neural network. A thermal error compensation system was developed based on the proposed model, and which has been applied to the YK3610 hobbing machine in daily production. The result shows that the prediction accuracy of thermal deformation in the YK3610 hobbing machine has been improved.
Wear Behavior of Carbide Inserts in Face Milling TA19 Alloy
Authors: Niu Qiu Lin , Cai X.J. , Liu Zhi Qiang , Chen Ming , An Qing Long
Published: January 2012

As a typical high strength material, titanium alloy Ti-6Al-2Sn-4Zr- 2Mo-0.1Si (TA19) is used to manufacturing the compressor power-brake of aircraft engine and the aircraft skin. All the machining experiments were carried out on a CNC-milling center under the stable conditions of cutting speed, feed rate, and depth of cut. The performance and wear mechanisms of coated- and uncoated carbide tools have been investigated in this paper to evaluate the machinability of TA19 in face milling. The three tools used were PVD-TiN+TiAlN, CVD-TiN+Al2O3+TiCN and uncoated carbide inserts. The results indicated that PVD coating had the best performance than other tool materials in milling titanium alloy TA19, and the cutting force and the wear value were the smallest than that for CVD-coated and uncoated tools. The failure types of PVD-, CVD- and uncoated inserts were the crater wear and micro tipping; the crater wear and tipping; tipping. Abrasive wear and adherent wear were the predominant mechanism of PVD-TiN+TiAlN carbide insert in face milling TA19 alloy. For CVD- and uncoated carbide, adherent wear was predominant.
Applied Civil Engineering Training Location Study
Authors: Liu Chang Ming , Zhang Peng
Published: January 2012

Applied Civil Engineering Training has great significance to our infrastructure career. This article combines the characteristics of the subiect civil engineering training, from the following aspects, the development of the national economy, the promotion of the urbanization level, the prosperity of the construction industry, the reform of the industry and the trend of economic globalization and so on , to discuss the demand orientation of Applied Civil Engineering Training. From creative ability, comprehensive quality promotion, the difference between application-oriented personnel and skilled and technical personnel, to make a exposition of Applied Civil Engineering Training. From building practice teaching system, reform of examination system and so on ,to clear the method location. It provides guidance and reference to Applied Civil Engineering Training.
Effect of the Cutting Speed and Temperature on the Cutting Behavior of Hardened Steel 42CrMo with PCBN Tool
Authors: Liu Ning , Yang Hai Dong , Ding Z. , Zhang C.G.
Published: January 2012

The cutting behavior of hardened steel 42CrMo with PCBN cutting tool was studied. The wear and the bottom chip were examined by means of scanning electron microscopy model JSM6490LV. The wear mechanism of tool was also analyzed.
Flexible Cam Profile Synthesis Method Using NURBS and its Optimization Based on Genetic Algorithm
Authors: Ge Rong Yu , Guo P. Q.
Published: January 2012

This paper describes a synthesis method of designing flexible cam profiles by using quintic non-uniform rational B spline (NURBS) curves. The cam profile curve can be optimized by adjusting knot vector, control points and weight factors of NURBS curve. The multiobjective optimization for a cam curve was described to satisfy both kinematic and dynamic requirements. To solve the optimization model for NURBS cam curve, an improved genetic algorithm (GA) called INSGA in the paper was proposed. Application examples on the kinematical and dynamical optimization of cam curves are presented together with detailed discussions. These examples, especial the dynamic optimization to control the residual vibration for a cam curve used in an indexing cam mechanism, sufficiently illustrate the effectiveness of the proposed approach.
Influence of Technical Parameters on the Residual Stress in the Diamond Coating
Authors: Wang Hong Xiang , Zuo Dun Wen , Xu Chun , Zhou Chun
Published: January 2012

The diamond coatings were prepared by hot filament chemical vapor deposition(HFCVD) on the mono-crystalline silicon substrates. The influence of the technical parameters such as methane volume ratio, substrate temperature and reaction pressure on the residual stress in the diamond coating was studied. The results showed that the residual stress in the coating was compressive stress in the range of parameters studied, and too high or too low substrate temperature, chamber pressure and methane volume ratio would all increase the residual compressive stress. This relationship can be explained by the influence of amorphous carbon content, vacancy density and grain size on the residual stress.
Preparation of Sericite-TiO2 Composite Particle Material by Mechano-Chemical Method and its Application
Authors: Hou Xi Feng , Yu Shou Ren , Ding Hao , Ye Can
Published: January 2012

Sericite-TiO2 composite particle material was prepared via mechano-chemical method. SEMEDS and XPS ananlysis indicates that the surface of the sericite were coated by the TiO2 layers and the Ti4+ cations were anchored by formation of SiOTi bonds. Otherwise, the TiO2-coated sericite powders have higher light scattering indexes and other more outstanding properties than the naked sericite powders. Especially, the whiteness, adsorbed value, and hiding power indexes of the rutile TiO2-coated sericite powders were higher than those of the anatase TiO2-coated sericite powders. Hence, rutile TiO2-coated sericite powders can be substitute for the titanium dioxide pigment.
Property and Research Process of Metal-Organic Frameworks
Authors: Ma Yuan Hui , Tang Cheng Chun , Zhang Lei
Published: January 2012

Metal-organic frameworks (MOFs) are new functional materials, which are developing quickly last years, especially as new hydrogen storage materials. This review introduces concept, characteristics, application, classification, and synthesis and development trend of metal-organic frameworks. Some new problems and difficulties in metal-organic frameworks study and next challenges are also discussed.
Application of Anion Multifunctional Additive in Polymer
Authors: Ni Shi Min , Li Qing Shan , Shen Xin Yuan
Published: January 2012

The title introduced Anion anionic additive, character and application. Anionic additive can apply in paint, textile, coating, foam, plastic, etc. The structure of opal shale and the mechanism of release anion were discussed. The opal shale was comminuted by the airflow method. The average diameter of the opal shale granule was observed by granularity instrument. The result indicated that size is about 0.40-5.0μm. The printing poplin with high performance was achieved by intermingle technology and the generally printing means. The anion number (4000 ions /cm3) in printing poplin was measured.
Research Progress and Prospect of Inorganic Filler for Urea-Formaldehyde Resin Adhesive
Authors: Tang Qing Guo , Wang Fei , Shao Hong Xia , Ding Yan
Published: January 2012

The artificial plywood materials were prepared using natural minerals and inorganic oxide powders as the main fillers for urea-formaldehyde resin adhesive instead of flour. The method mentioned above has advantages in saving food resources, reducing cost of plywood, improving the quality of plywood and decreasing the release amount of free formaldehyde. On the basis of the research achievement both domestic, foreign and our experimental data, this paper mainly discussed the effect of filler on adhesive properties, bond strength of plywood, and free formaldehyde content, which provided reference for development of green environmental protection and low cost urea-formaldehyde resin adhesive minerals composite filler.
The New Materials Automotive Electrophoresis Pretreatment - Oxsilan Technology
Authors: Yao Yu
Published: January 2012

Oxsilan technology has begun replace the iron and zinc phosphating general industry gradually. Oxsilan technology pre-treatment technology has some advantages such as environmental protection, free of harmful heavy metals, residue-free and low energy consumption, but the domestic automotive pretreatment technology has not yet applied. Through oxsilan technology, this paper carries out cycle test, stone chipping resistance, salt spray test, using cold rolled (CRS), electro-galvanized sheet (EG), hot dip galvanized sheet (HDG) and aluminum (Al) and compares with sample performance of electrophoretic coating of oxsilan technology and phosphate electrophoresis film. The results show that oxsilan technology has potential to replace iron and zinc phosphating technology in the automobile pre-treatment technology.
Development of Innovative Thinking Ability of College Students and the Innovation in the Work of Students
Authors: Wang Guo Wei , Li Qing Shan , Hong Wei , Sun Jing
Published: January 2012

On the basis of defining and analyzing the concept and the basic element of innovative thinking, this paper analyzed the characteristics of the physical and mental development of students as well as that of the innovative thinking. In the paper, channels of developing college students' innovative thinking ability were discussed from four aspects, and the major obstacle to be overcome in the process of developing was also studied, which provided guidance for learning and developing the innovative thinking ability of college students.
Thinking Innovative Approaches and Materials Innovative Practice
Authors: Li Qing Shan , Hong Wei , Sun Jing , Liu Jun , Yu Wei An , Liu Zhu Bai , Xing Guang Zhong
Published: January 2012

Based on the theoretical system of innovation thinking and practice base of research, innovation and expansion of scientific thinking, thinking, innovative technology, science, innovative thinking, environmental studies, engineering, innovative thinking, innovative thinking, art, thinking, innovative pedagogy of understanding. Through the preliminary study on Material innovation, proposed new methods and opened up new avenues.
Factors Analysis of Mechanical Properties on AT/EPDM Rubber Composite
Authors: Guo Hao , Tang Qing Guo , Liang Jin Sheng , Ding Yan , Wang Li Juan , Du Yu Long
Published: January 2012

During rubber processing, many factors can affect the mechanical properties of rubber composite. The influence of ambient temperature and content of titanate coupling agent and modified attapulgite (OAT) on mechanical properties were investigated by preparing rubber composites and measuring. The results showed that the rubber composite which was filled 40phr OAT modified by 3% titanate and prepared at the ambient temperature above 20 had best tensile strength (18.93MPa). There is a special phenomenon that the tensile strength had a rapid increase from 4.72MPa to 18.93MPa, when the content of OAT changed from 20 to 40phr in the experiment.
The Effects of Milling Methods on Doped LaCrO3 Nanopowder Prepared by Glycine Nitrate Process on Particle Size and Phase Transformation
Authors: Heidarpour Akbar , Saidi Ali , Abbasi Mohamad Hasan
Published: January 2012

In this study the effects of milling methods on particle size and phase transformation of strontium and nickel doped lanthanum chromite as an interconnect material for solid oxide fuel cells (SOFC) were investigated. Two compositions of La0.9Sr0.1Cr0.9Ni0.1O3 (LS10N10) and La0.7Sr0.3Cr0.9Ni0.1O3 (LS30N10) were synthesized by glycine nitrate process (GNP). The samples were characterized by means of X-ray diffraction, nitrogen adsorption–desorption, scanning and transmission electron microscope and laser particle size analyzer. Two different milling methods were used, namely, high-energy milling (HEM) and ball milling (BM) and the effects of these milling methods of as-synthesis powders on the particle size distribution, agglomeration behavior and phase transformation were also investigated. The results showed that BM caused reduction of particle size to submicron size with D50 value of 125 nm while HEM resulted in agglomeration. The obtained nanopowders, according to XRD results were single phase with perovskite type crystal structure and only in high content of Sr some SrCrO4 was detected. HEM caused the dissolution of the second phase in LS30N10.
Empirical Study of Multimedia Technology in the Orienteering Teaching of Males in Colleges & Universities
Authors: Long Xiao Dong , Wang Yue Feng , Fan Hong Ling
Published: January 2012

Objective: Regarding a number of outstanding issues in orienteering teaching of males in colleges and universities, I discuss the value and effects of multimedia technology when applied in orienteering teaching as a selective course. Methodology: For the research subjects of Class 1 (as an experiment class with 32 persons) and Class 2 (as the comparison class with 33 persons) of Jinggangshan University, which entered the university in 2009, and which took the selective orienteering course, the literature method, interview method, measurement method, comparison method, questionnaire method and mathematical statistic method were used to conduct an empirical study over the scores of the students in 100m run, 1000m run, orienteering theory, and 100m orienteering. Result: Compared with its scores before the experiment, after the experiment, the experiment class scored 0.45s less in 100m run (P=0.02< 0.05); 21.32s less in 1000m run (P=0.000< 0.01); and 29.05 points less in orienteering theory (P=0.000< 0.01). Compared with the comparison class, after the experiment, the experiment class scored 5.7s on average in 100m orienteering (P=0.000<0.01). Conclusion: Both the multimedia-assisted teaching and the traditional teaching can greatly improve the male students’ scores in 100m run, 1000m run and orienteering theory. However, the multimedia-assisted teaching does better to improve their scores in 100m run and 1000m run, and extraordinarily better in orienteering theory, than the traditional teaching does. Moreover, it can greatly increase their scores in 100m orienteering, with fewer errors and obvious effectiveness. If properly applied, the multimedia-assisted teaching will stimulate the interest of students, so that they can better learn and understand orienteering-related knowledge within a shorter period of time. Such teaching technique is worth spreading.
Based on Corrected Model of General Regression Neural Network for Forecasting Water Consumption of Populus (P.×euramericana cv.“74/76”) Seedlings
Authors: Gao Wei Dong , Ma Lu Yi
Published: January 2012

Water consumption of plants is a key parameter for formulating irrigation system, and the precise prediction play a important role in improving the use efficiency of limited water resources. In this experiment, by using the method of General Regression Neural Network (GRNN) and MATLAB DATA PROCESSING SYSTEM combined with the meteorological data of air temperature, relative air humidity, solar radiation, wind speed, soil water content and dew point temperature as the input variable, the author established the artificial neural network system to forecast the seedling water consumption of P.×euramericana cv.“74/76”, and made the amendment to the Neural Network Model, by comparison between original model and corrected model, we draw the conclusion that all parameters, except solar radiation, had better correlation between corrected values and measured values: relative air humidity (0.99>0.98), air temperature (0.62>0.61), dew point temperature (0.96>0.82), soil water content (0.56>0.54), wind speed (0.89>0.86), and the corrected model had higher forecasting accuracy. In addition, the maximum relative error of GRNN corrected model was 0.104, the minimum relative error was 0.010, the average relative error was 0.04. The corrected model is superior to the original model that the former performs a higher forecasting accuracy with relatively shorter time consumption and faster speed in training. Therefore, we propose that GRNN model and its corrected model can be used in prediction of seedling water consumption.
Thermoplastic Natural Rubber (TPNR) as a Backbone Binder for Metal Injection Molding Process
Authors: Norita Hassan , Sahrim Ahmad Haji , Muhamad Norhamidi , Omar Mohd Afian
Published: January 2012

Thermoplastic natural rubbers (TPNR) blends consist of thermoplastics, such as low density polyethylene (LDPE), alloyed with natural rubber (NR) with different thermoplastic to NR ratios. The soft grade TPNR is produced by blends with compositions richer in rubber while the harder grades can contain up to about 30% NR. This study investigate the influence of new binder system containning of TPNR on injection parameter, density of injected molded specimen and changes during solvent extraction. Results shows that TPNR plays an important role as a good binder system and shortens the solvent extraction process.
Effects of Curvature on Material Removal in NC Polishing of Aspheric Part
Authors: Zheng Di , Shi Yong Jie , Wang Yuan , Zhao Xiao Jun , Pan Lun , Lu Feng
Published: January 2012

The objective of this paper is to investigate the effect of radius of curvature on the material removal in the NC polishing of aspheric part. The models of polishing pressure and material removal rates were established based on Preston equation and Hertz theory. The material removal rates was analyzed. Experiments were carried out. Results showed that the material removal rate varies with the variations of the curvature under a constant polishing force and velocity, and the part can not be polished uniformly.
Optical and Photo-Electrochemical Properties of Conducting Polymer/Inorganic Semiconductor Nanoparticle
Authors: Habelhames Farid , Lamiri Leila , Wided Zerguine , Nessark Belkacem
Published: January 2012

Optical and photoelectrochemical properties of polybithiophene Poly (bTh) films electrochemically synthesized and modified with incorporation of silicon nanoparticles (n-Si or p-Si) dispersed in the electrolytic during polymerization were studied. The characterisation of these modified surface electrodes by Poly (bTh)+n-Si or Poly (bTh)+p-Si, was carried out by using the photocurrent measurements and UV-visible spectroscopy. Cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) have been used to investigate the electrochemical behaviour of the resulting materials. The results show that the photosensitive composite materials have good photoelectrochemical and optical properties, and it can be used as material for the photovoltaic cells applications.
Horizontal Submerged Arc Welding Equipment Based on the Torch Swinging Design
Authors: Zhang Xiao Ming , Wang Gang , Feng Li Na
Published: January 2012

In this paper, the transverse cross submerged arc welding process, welding work characteristics and shortcomings encountered was proposed based on PLC, MMI, servo drive system torch swing mechanism. The test debug, and field applications, the effect is very good.
The Research on Positioning Based on Digital Television Signal and GNSS
Authors: Song Ke Xin , Hua Yu , Xiang Yu , Huang Chang Jiang
Published: January 2012

Global Navigation Satellite System (GNSS) is precise and efficient in positioning and navigation in so many fields of military and civilian affairs. However, the GNSS signal is commonly kept out and interfered inside the buildings and the area dense with people, so the GNSS positioning possibility is low and the capability is bad. Digital television terrestrial broadcasting signal is powerful in sending power, low in frequency and wide in base bandwidth, so it is good, real time, and absolute entire to cover the metropolis including many streets and buildings where GNSS signal is not reachable. Considering these characteristics of digital television terrestrial broadcasting signal, the results is good that positioning the receiver location combined with GNSS and digital television terrestrial broadcasting signal. In this paper the signal structure is analyzed which is regulated by the national standard of People’s Republic of China GB20600-2006. The method of measuring the time delay of signal broadcasting is presented. The system time synchronization is finished when the number of satellite is satisfied to position the receiver in its scope. Then, the positioning combined with GNSS and digital television signal is achieved. At last practice measured data in Xi’an is analyzed and the conclusion is given.
Channel Estimating Based on Space-Time-Frequency Pilot for MIMO-OFDM
Authors: Liu Hui , Jiao Jing Shan , Zhang Fu Chun , Zhou Ling
Published: January 2012

The pilots that are transmitted by different transmitting antennas must be orthogonal after being shifted. So the time domain channel estimating solution is deduced through LS based on the MIMO-OFDM channel estimating model. The time domain solution need the inverse operation of matrix, and its operating quantity is large. So the three dimensions pilot based on space domain, time domain and frequency domain is designed. The method need not the inverse operation of matrix for the time domain channel estimating solution and can reduce the complexity of channel estimating and make the channel estimating error minimum. It is shown from the simulation that the channel estimating method of this paper based on space domain, time space and frequency domain pilot has better MSE and BER performances compared with the traditional LS algorithm and the document algorithm.
Multivariate Information Metallogenic Prognosis Model
Authors: Wang Wei , Sun Bao Sheng , Zhou Ke Fa , Wang Jin Lin
Published: January 2012

Metallogenic circumstances spatial of the same category mineral deposit structure had defined commonality in a certain region. The important was that studied mineral deposit informations and determine the nature or a segment quantitative investigation, integrated experts’ experience to make sure the weight of dominate mineral factors, and constructed metallogenic prognosis model, and then proceed metallogenic prognosis and mineral resource evaluation use in other regions. To overcome geologic investigation problem which not unity and manifold explanation about geology、geophysics、geochemistry、remote geology at present.
Autonomous Self-Oscillating Behavior of a Novel Nonthermoresponsive Polymer Chain
Authors: Hara Yusuke , Jahan Rumana A.
Published: January 2012

In this paper, we investigated the influence of the temperatureand the initial concentrations of malonic acid on the transmittance self-oscillation for a novel nonthermoresponsivepolymer chain. The amplitude of the self-oscillation hardly changes while change in the temperature and the concentration of malonic acid. The period of the self-oscillation does not decrease with increase in the concentration of malonic acid at 14, 16 and 18 °C.
Installation of Distributed Maintenance Case: Cement Factories of East (SMCE)
Authors: Smadi Hacene , Bellala Djamel , Maache Younes
Published: January 2012

In this work, we intend to determine a scheduling rule of maintenance work, which permits the optimization of the random tasks operation (corrective maintenance) while maintaining the works (preventive maintenance) yet scheduled within their temporal intervals. The principle of our approach consists of processing the problem in two stages: Resolution of the static problem for the projected scheduling of the tasks known a priori Resolution of the dynamic problem for random tasks scheduling This work has found a field of application within the maintenance company of the east cements factories, (SMCE) which is in charge of the five (05) east cements companies' maintenance.
Influences of Obstacles Installed in the Container on the Superheated Liquid Boiling
Authors: Chen Si Ning
Published: January 2012

During the accident mechanism investigation of Boiling Liquid Expanding Vapor Explosion (BLEVE), numerous dada shows that overheated liquid explosive boiling is the main reason and driving force to cause accidents. Research on the micro-process of overheated liquid instant boiling in BLEVE as well as the microscopic mechanism to influence this process development under different device conditions is favorable to seek the preventive and control measures for this accident. In this paper, regarding the mesh obstacle provided inside the storage tank, high-speed camera technology has been utilized to shoot the boiling process during continuous leakage of the storage tank, and the influence of the obstacle on the overheated liquid boiling has been tested and analyzed. It is found out that the boiling process of overheated liquid has been delayed. When the bubbles are rising, the growth process has been suppressed, after passing the obstacle, the movement speed and volume has been decreased, and the upward expansion speed of two-phase flow has also been decreased.
NC Grinder Sliding-Table Component Design for Face Gear
Authors: Bao Ze Fu , Jiang Ya Zhou , Wang Jiang Ping
Published: January 2012

Face gear drive, a new type of gear , is meshed by a cylindrical gear and a bevel gear. It has many unique advantages. Especially in high-speed and heavy-load situation, it has obvious advantages and wide application in the aviation field of power transmission. But the surface gear's major object is low productivity, processing and complex machine tools, adjustment difficulties, high processing costs. Based on this, briefly discussed the status of face gear drive and needs further study, the author proposes a butterfly gear grinding wheel becomes the grinding face gear's theory and the processing method, the author elaborated the numerically-controlled machine tool realizes the surface gear grinding processing method, and has carried on the reasonable choice and the examination to the numerical control gear grinding machine's horizontal sliding table major component (ball screw).
Using Wavelet Network in Estimating the BOF Temperature
Authors: Wang Yong Qing , Chen Yan Ru , Chen Fei Nan , Chen Jing Jing
Published: January 2012

Temperature of the BOF flame is an important evident in the steel making process. A kind of wavelet neural network (SWNN) is constructed to get the mapping relation between the flame true temperature and radiation which can be effectively separated from emission information. The temperature predicted by the summation wavelet neural network is inosculated to the temperature measured by sub-lance comparatively.