bluuebunny/crossref_metadata_2025 huggingface dataset:
Discharge Behavior Characterization of 12-Phase AC Arc and its Application
Authors: Yao Yao Chun , Watanabe Takayuki , Yatsuda Kazuyuki
Published: February 2012

A stable 12-phase AC arc was successfully developed and applied in the field of glass in-flight melting, and the arc discharge behavior was characterized by image analysis. The effects of sheath gas flow rate on arc discharge and melting behavior of granulated glass raw material were investigated. Results show that different sheath gas flow rates lead to various arc discharge and high-temperature region. The fluctuation of luminance area ratio and coefficient of variation reflects the change of arc discharge behavior. As the sheath gas flow rate increases, the ratio of luminance area decreases and the center temperature of arc increases. The vitrification degree of glass raw material is mostly dependent on the center temperature of arc, higher center temperature and more vitrification degree.,A stable 12-phase AC arc was successfully developed and applied in the field of glass in-flight melting, and the arc discharge behavior was characterized by image analysis. The effects of sheath gas flow rate on arc discharge and melting behavior of granulated glass raw material were investigated. Results show that different sheath gas flow rates lead to various arc discharge and high-temperature region. The fluctuation of luminance area ratio and coefficient of variation reflects the change of arc discharge behavior. As the sheath gas flow rate increases, the ratio of luminance area decreases and the center temperature of arc increases. The vitrification degree of glass raw material is mostly dependent on the center temperature of arc, higher center temperature and more vitrification degree.
Study on Knowledge Integration Social Network of Scientific Research Team in University
Authors: Liu Yan Fang , Yuan Yong Jiu , Zhao Chen Guang
Published: February 2012

The paper gets a scientific research team in university as a case, through the collection of the joint research achievements of the team members nearly 3 years to build the knowledge integration social network and to study the practical problems such as relationship of team members which occurred in the process of knowledge integration. From the perspective of the overall network to conduct a detailed study on the knowledge integration network of this scientific research team, includes three aspects: network viscosity measurement, centrality measurement and structural holes measurement. Analysis the measurement results and gives recommendations to improve the level of knowledge integration in the scientific research team of university.
Study of the Online Automatic Non-Destructive Detecting System of the Cracks in Vibrating Screen
Authors: Yan Bi Juan
Published: February 2012

The large-scale vibrating screen has been applied widely in coal industry and other industrial areas as a kind of important device. However, the lower crossbeam is the main carrying structure and is easily damaged, so it is regarded as a researched object in this thesis and it is tested under the load in the laboratory. Based on the test, acoustic emission wave signals can be gotten by modern acoustic emission testing technique. Then, the "wavelet packet - energy" from the characteristics of acquiring signals is used as neural network input vector. In Matlab6.5, neural network model identification is created and taking advantage of nonlinearity and the ability of learning and memory of Neural Network，this model is fixed by training structure of network with training samples. The work presented shows that acoustical emission signal processing and research on early fatigue fault diagnosis based on the wavelet and the neural network is viable.
Using Load Method to Determine Bifurcation Point and Branch Path Based on FEM
Authors: Ma Lv Zhou , Liu Jian , Diao Xun Lin
Published: February 2012

Based on the basic principle of load disturbance method to implement equilibrium path transformation, this paper puts forward a new load method to deal with structural bifurcation point instability based on FEM. The unloading step obliterates the disturbance entirely, and the load method can get exact bifurcation point. The simple example demonstrates that the load method is practical and effective.
Solution to the Outlet Curve and Optimal Vibration Parameters of Vibrating Feeder
Authors: Xia Jian Fang , Wang Yi Sheng
Published: February 2012

Pellet layers inside the rotary hearth furnace influences the interior temperature and reduction rate, so pellets must be distributed with a constant thickness .A special vibrating feeder is designed to distribute pellets.The working principle of vibrating feeder is analyzed and the differential equation of the outlet curve is derived .The differential equation is solved by the numerical method to obtain the outlet curve’s orthographic projection on the hearth. Under the conditions of lower broken rate and good dispersion, vibrating strength and optimal vibrating angle, vibrating frequency and exciting force are calculated by the theoretic computing method. Finally, an experiment is operated. Its result shows that pellets can be evenly distributed with a low broken rate when the exciting force is close to the theoretical value.
Pure Statistical and Multi-Level Industrial Pairs Trading: Bridged by Statistical Characters
Authors: Wang Su Sheng , Mai Yong Guan , Ning Hong Yu
Published: February 2012

To investigate the differences between industrial pairs trading in different classification levels, explore the compatibility between pure statistical pairs and industrial pairs, the article based on the 50 stock’s data of Index 50 SSE in China from 2004 to 2010, implemented the GGR trading strategy, and paired the sample stocks with pure statistical, primary industry and secondary industry pairing methods. It discovered that primary industrial pairs make no significantly difference with pure statistical pairs, but the secondary industry pairs do and improve markedly with the possibility of ruling out the best pairs arbitrarily. With GGR trading strategy established, stock selection criteria would impact on the trading results.
Numerical Study on Laser Cladding of BT20 Alloy
Authors: Chang Qing Ming , Yuan Jing , Yang Yin Kai , Chen Xia , Chen Chang Jun , Bao Si Qian
Published: February 2012

A 3-D modeling based on the numerical resolution of fluid flow and heat transfer are utilized to investigate the thermal phenomena during laser laser-cladding processes of BT20 alloy. From this model, it has been found that the shape and size of the molten pool in the work piece are affected by laser cladding parameters such as scanning speed and the incident laser power. The effects of process parameters on the melt pool are quantitatively discussed by numerical analysis. Furthermore, it has been observed that the surface tension temperature coefficient, Marangoni convection, which is sensitive to the active elements in the titanium alloy composition, also affect the pattern of the fluid flow in the molten pool.
Checking Existence of Tolerance Solutions of Interval Linear Equations via Mixed Integer Programming
Authors: Wang Hu Ping , Li Wei , Wang Qin , Zhao Zhi Li
Published: February 2012

An approach to deal with interval linear equations is to reduce the problem into solving several linear (or nonlinear) equations (or inequalities). To obtain characterations of the equations the paper gives a necessary condition of tolerance solutions of interval linear equations by means of nonlinear inequalities. Based on the necessary condition, a sufficience condition for nonexistence of tolerance solutions of the equations is given by use of the well-known Farkas theorem.
Analysis of Geometric Characteristics of Scroll Compression Chamber for Scroll Fluid Machine
Authors: Ma Xiao , Zhang Hua , Wang Fu Qiang , He Yuan
Published: February 2012

Based on the general geometrical model of scroll compression chamber for scroll fluid machine, the geometric characteristics of scroll compression chamber, such as width, length, volume, and comprehensive curvature radius at the mesh point, and their variation as well are comprehensively analyzed. It is shown by the analysis that among all of the geometric characteristics, the width variation is the most complicated one; the comprehensive variation of the width together with the length can be used to determine the deformation processes of the chamber. The variability of its length, volume, and comprehensive curvature radius at meshing points should be taken as its basic deformation characteristics. For a scroll compression chamber with involute of circle, its deformation efficiency is higher and dynamic stability is excellent. At the same time, the scroll wrap with involute of circle is easy to fabricate and the profile with involute of circle is used widely for the major part of the scroll profile.
Selection of the Measuring Teeth Number of Involute Cylindrical Gear Common Normal
Authors: Yang Quan Chao , Qian Zhi Liang , Gu Yan Jun
Published: February 2012

Focus on the inconvenient inquiring of non-standard gears common normal length and irrational selection of the measuring teeth number, the computational general formula of common normal length and measuring teeth number is educed. According to best value method, the scope of measuring teeth number is ascertained. A rational measuring teeth number is selected on the basis of the scope. According to Matlab-GUI, design a software which can calculate the common normal length and measuring teeth number of involute cylindrical gear. The result shows that the solving of measuring teeth number by best value method is more reasonable and the calculation of common normal length is exacter and swifter by the software.
Research on Power Diffluence and Conflux Mechanism of Hydro-Mechanical Transmission
Authors: Han Zhao Lin , Liu Feng
Published: February 2012

Abstract. Hydro-Mechanical Transmission (HMT) is a dual-power flow transmission system in which power is transferred parallel by mechanical transmission and hydraulic transmission. There are four types of HMT: torque-diffluence and torque-conflux, torque-diffluence and speed-conflux, speed-diffluence and speed-conflux, speed-diffluence and torque-conflux, when gear pair and planetary train are used as power diffluence or conflux mechanism respectively. And the result of kinematics characteristics analysis indicates that only torque-diffluence and speed-conflux type of HMT can be used as the vehicle transmission system because its output speed characteristics and pump speed characteristics can meet the requirements of the vehicle drive.
Uniform Loading Analysis for Pin-Hole-Output Mechanism of FA Cycloid Drive
Authors: Lei Lei , Tao Ying , Guan Tian Min
Published: February 2012

In order to balance the force loading on the dowel pin , improve the load carrying capacity on pin-hole type output mechanism the FA cycloid drive, we considered to add uniform loading ring on the cantilever end of the pins in this paper. Under the action of uniform loading ring, we did the stress and deformation analysis on the dowel pin; Through the examples comparison we found that, the maximum bending stress of the dowel pin is reduced by 77.86% after adding the uniform loading ring, the dowel pin stress is well-distributed, and the bending strength of output mechanism is improved, thus the load carrying capacity of overall unit is improved.
Simulation Analysis on Control Strategy of Launch with Two Clutches for Dry DCT
Authors: Liu Zhen Jun , Ren Chuan Bing , Wang Lei
Published: February 2012

Based on the control principle with a constant engine speed, the coordination control process between engine and clutches during launching was analyzed. The maximum engaging speed of clutches and the maximum change rate of throttle were calculated with the maximum degree of jerk as the limited condition, and the control strategy of launch with two clutches was established. Genetic algorithm was used to optimize the distribution coefficient of torque between two clutches. The simulation results show that the control strategy of launch with two clutches using two clutches work together and the reasonable distribution of torque could be advantageous for clutches enduring life.
Analysis of Fretting Behavior for Fasten Surface between Diesel Engine Cylinder Block and Main Bearing Cap
Authors: Li Wen , Liao Ri Dong , Zuo Zheng Xing
Published: February 2012

Fretting fatigue becomes a typical failure mode for engine cylinder block caused by the increasing of the gas pressure and rotating speed, but the mechanism of fretting fatigue under diesel engine load condition hasn’t been systematic studied. In this paper, the fretting behaviors are mainly discussed by using fretting friction work parameter W and crack initiation location parameter G.
Study on Lamellar Crystal Orientation and Instable Growth in Polymer Ultrathin Films
Authors: Ren Yi Jin
Published: February 2012

The lamellar crystal orientation and crystal instable growth in polymer ultrathin films were studied. The orientation of lamellar crystal transforms from edge-on to flat-on with decreasing film thickness due to the enhancement of restriction effect of polymer-substrate on the edge-on lamellar crystals. Lamellar crystals in ultrathin films have a instable growth and become a dendrite at the growth front because of the diffusion-controlled growth.
Adaptive Fuzzy Cerebellar Model Articulation Controller for Two-Wheeled Robot
Authors: Chen Jen Yang , Lin Kuei Chih , Tsai Pu Sheng , Liu Chuan Hsi , Ouyang Jing Ming
Published: February 2012

In this paper, an adaptive Fuzzy Cerebellar Model Articulation Controller (FCMAC) is proposed to control two-wheeled robot at upright position. The dynamical model of the robot, LEGO Mindstorms NXT, is derived from Lagrange of kinetic and potential energies. Based on the developed model, an adaptive FCMAC is then designed. Adaptation laws are derived from the Lyapunov stability analysis. According to the stability analysis, the developed FCMAC guarantees that the system tracking performance and the error convergence can be assured in the closed-loop system. Finally, to compare the system performances we apply the proposed FCMAC and the PID (Proportional Integral Derivative) controller to balance the two-wheeled robot.
Effects of Surface Roughness on Elastohydrodynamic Lubrication in Elliptical Contact with Non-Newtonian Fluids
Authors: Rattapasakorn Sountaree , Panichakorn Jesda , Mongkolwongrojn Mongkol
Published: February 2012

This paper presents the effect of surface roughness on the performance characteristics of elastohydrodynamic lubrication with non-Newtonian fluid base on Carreau viscosity model in elliptical contact. The time independent modified Reynolds equation and elastic equation were formulated for compressible fluid. Perturbation method, Newton Raphson method and full adaptive multigrid method were implemented to obtain the film pressure, film thickness profiles and friction coefficient in the contact region at various amplitude of combined surface roughness, applied loads, speeds and elliptic ratio. Simulation results show surface roughness amplitude has significant affected the film pressure in the contact region. The minimum film thickness decreases but friction coefficient increases when the combined roughness and applied loads increases. The minimum film thickness and friction coefficient both increase as the relative velocity of the ball and the plate is increase. For increasing the elliptic ratio, the minimum film thickness increases but the friction coefficient decreases.
Porous Elastic Filter Material in Water Depth in the Processing of the Application
Authors: Liu Qiang , Zhao Li Li
Published: February 2012

Investigation porous elastic filter material deep treatment of drinking water contamination removal in effect. The membrane separation system to meet the requirements of the feed water quality, in this paper the new type of porous elastic filter material compression filter technology and traditional quartz sand filter technology water depth contrast the treatment effect experimental study. The results showed that different compression ratio of porous elastic filter material to filter pollutants has good removal efficiency, and better than quartz sand. Porous elastic filter material compression ratio and turbidity, the average iron removal rate was significantly positive correlation. The compression ratio for 70% of the porous elastic filter material after filter, and the effluent turbidity of, iron, CODMn and DOC average concentration of were 0.35 NTU, 0.05, mg • L-1,1.73 mg • L-1 and the 1.48 mg • L-1; Basic meet the membrane separation system of the feed water quality requirements.
Analysis on Wrinkling of Polyimide-Base Metal Film Prepared by Pulse Arc
Authors: Cheng Dan Dan , Shi Yun Cheng , Yang Wei Ping , Xie Yan Feng , Zong Ze Yuan
Published: February 2012

Metal films are deposited on polyimide by pulsed cathode arc. Metal film wrinkles are found by SEM. These wrinkles are caused by film stress which is from inherent defect of film materials. The soft substrate will deform with metal films because there is shear force between metal films and soft substrate surface. The film stress with soft substrate together is discussed in detail.
Effect of Magnetic Shunts on the Eddy Losses of a Transformer Tank
Authors: Wang Yi Fang , Song Zhan Hai , Chi Ji Hong
Published: February 2012

This paper presents a 3D FEM computation model for a power transformer structure, where several conductor disks in series are used to constitute each winding, this is different from the normal cylindrical shape models. Base on such model the simulated ohmic losses in windings can be the same as that of measured. Then the stray magnetic fields in the transformer, the eddy losses in tank, the effect of magnetic shunts on tank losses are all studied, the calculated decrease of eddy losses in tank when magnetic shunts are properly used is compared with that of measured, they are coincide in some degree, which imply this model is reasonable for the simulation
Production Line Control System of Energy-Saving Lamp Based on HMI and 485 Network Communication
Authors: Chen Wei , Zheng Xiao Yi
Published: February 2012

Contraposed the reality of great market demand of energy-saving lamp, and its middle-high grade trends in production etc., the design of a high-performance production line control system of energy-saving lamp based on HMI and 485 network communication has the characteristics of good reliability, high efficiency and convenient operation. The production line control system is operated through human-machine interface, using RS-485 bus for message communication, has a lower cost and a good prospect.
Fabrication of Conductive Polypyrrole/Polyurethane Composite Fibers for Large Strain Sensing
Authors: Zhang Xiao Lin , Qin Zong Yi , Chen Long
Published: February 2012

A kind of flexible, conductive polypyrrole–coated polyurethane (PPy/PU) fibers was fabricated by controlled chemical polymerization and its strain sensing ability was evaluated. The as-prepared fibers possessed high conductivity with a maximum value of 10-1 (Ω•cm)-1, and highly elastic nature of the PU matrix. It is further found that dense PPy layer was covered uniformly onto PU fiber surface, and an interpenetrating interface and strong hydrogen bonding interaction could be observed, which greatly benefited their high structural stability. More importantly, the composite fibers exhibited a wide strain deformation range up to 250% and high strain sensitivity of over 20 (at the large strain of 50%), and good reversible resistance response on cyclic force loading, which would open a high opportunity for fabricating strain sensing material in large volume for future smart device applications.
The Characteristics of Low Frequency on Detecting Method via Strain Gages
Authors: Li Xiao Jun , Zhu Wen Ming , Wang Yu Guo , Zhang Yu
Published: February 2012

In order to find out the feasibility to obtain dynamics peculiarity in high frequency domain, the dynamic peculiarity on detecting method with strain gages is researched. By modeling and analyzing qualitatively, the characteristics of low frequency are indicated for strain gages sensor system. Comparing with the test signal difference between vibration acceleration sensor and strain gages sensor system at the three domain which are time, amplitude and frequency, the characteristics of low frequency are proved for the one. Therefore while detecting the high frequency dynamic signal with strain gages sensor system, the high frequency information is attenuated, the mostly spectrum information is lost.
Permanent Settlement Prediction of Composite Foundation Improved by Cement-Soil Piles under Cycle Loading
Authors: Huo Tao Ran , Bai Shun Guo
Published: February 2012

Through large-scale model tests on composite foundation of cement-soil piles under cyclic loading, a program was compiled based on the platform of MATLAB 7.0, considering the effects of cement mixing ratio, replacement ratio, cyclic stress ratio and number of cyclic on the permanent settlement of composite ground. A back-propagation neural network model to predict the settlement was established, and its prediction accuracy was inspected. Meanwhile, an predicting model of multivariable linear regression analysis was established .To compare the prediction accuracy of the two methods, and the result shows that the trained neural network have the better predictive and generalization.
Influence of Continuous Extrusion Process on AZ31 Magnesium Alloys
Authors: Fu Rong , Gao Fei
Published: February 2012

Make continuous extrusion test on cast AZ31 magnesium alloy by TLJ250 continuous extruding machine, and observe and compare the changes of product under different processes. Result shows that: when the extrusion speed is 3 to 4r/min, higher deformation and friction heat can provide heat for recrystallization due to higher deformation speed. The grains are even and fine, and under identical cavity structure and raw material, the grain refinement level relates to the extrusion ratio; when the extrusion ratio increases, the deformation of metal in cavity increases, and shear deformation goes to the heart of product; the deformation starts becoming evener, and the grains become move even.
A Modified Feed-Forward Compensated PD Controller Design and Simulation Comparison Based on Two-Link Manipulator
Authors: Wang Ji Yan , Si Xu Fei , Guo Rong Chun
Published: February 2012

For industrial robot manipulator system, PD control theory is extensively used in the dynamic characteristics controlling. A new modified feed-forward compensation PD controller is introduced to optimize the stability and convergence of traditional PD controller for industrial manipulator system. By the co-simulation on ADAMS and Matlab/ Simulink, the paper designs a modified feed-forward compensation PD controller based on two-link manipulator model and completes track control trial. Through result comparison and analysis, the superiority of the new modified PD controller for two-link manipulator is verified.
Simulation of 3D Gas-Liquid Two-Phase Flow Characteristics of Carrousel Oxidation Ditch
Authors: Liu Y. L , Lv B , Wei W.L
Published: February 2012

In this paper, the gas–liquid two-phase mixture model with the k-ε turbulence model was used to numerically simulate the characteristics of an oxidation ditch. The proposed model concerns with the drag force and the drift velocity. The numerical method is based on a pressure-correction algorithm of the SIMPLE-type. A multigrid technique based on the full approximation storage (FAS) scheme is employed to accelerate the numerical convergence, while the κ-ε model with wall functions is used. The numerical results for velocity and turbulent kinetic energy in the oxidation ditch are obtained．
Structure and Thermal Properties of RHA/NR Composite
Authors: Zeng Zong Qiang , Liu Hong Chao , Yu He Ping , Peng Zheng
Published: February 2012

The rice husk ash/natural rubber (RHA/NR) composites were prepared by latex blending process using the RHA modified with silane coupling agent. The structure and morphology of modified RHA were studied. The dispersing performance of modified RHA in the composites was evaluated from the structure and thermal properties. The results indicate that silane coupling agent KH-570 can react with the carboxyl of the RHA surface, leading to a significant decrease in carboxyl absorption intensity and the obvious improvement in the dispersion of RHA particles in rubber matrix. As the modified RHA having grafted onto NR molecular chains can increase the interface force between RHA and rubber matrix, the thermal stability of RHA/NR composites thus can be improved. The RHA/NR composite of highest thermal stability can be prepared with RHA load of 5% shows the best.
Study on Interaction among Cerium-Arsenic-Iron
Authors: Lin Yuan Zhi , Liu Xiao Dong , Zhang Jin Zhu
Published: February 2012

The interaction in the Cerium-Arsenic-Iron system at high temperature were studied by means of electron probe microanalysis, optical microscopy and X-ray diffraction. The results show that the CeAs is the main product when the atomic ratio of Cerium to Arsenic is 1:2, and a light gray phase in bright field might be a ternary compound Ce12Fe57.5As41. The diffusion coefficient of Arsenic in iron was calculated as 1.606×10-13m2/S.
Effect of Root Flaw on Tensile Behavior of Friction Stir Welded A6061-T6 Aluminum Alloy
Authors: Lin Ben Yuan , Liu Ju Jen , Lu Lee Der , Tsai Hsien Lung J
Published: February 2012

The tensile behavior of friction stir joints containing root flaw in A6061-T6 aluminum alloys was investigated. First, plates of this material were butt-jointed by friction stir welding, and the metallographic observation and micro-hardness analysis were made on the cross-section of the weld. Then, tensile tests were performed in MTS 810 testing machine, and a digital CCD camera was used to monitor the process during testing.. Finally, the tensile fracture surface analysis was examined by scanning electron microscopy (SEM). The results show that the root flaw has no apparent effect on the tensile properties. However, it was observed that a crack about 0.3 mm in length occurred in the root part of the weld center in the early stage of tensile test, and the crack did not further propagate during the sequent tensile experiment. The tensile specimens were all fractured in the heat-affected zone (HAZ) of the retreating side, which is the area coincident with the region of maximum local strain and lowest hardness.
Numerical Simulation of Vibration Sieve Based on DEM
Authors: Zhao Yue Jing , Qin Zhi Ying
Published: February 2012

Vibrating sieve is a special kind of equipment which used to grading materials according to particle granularity. By the vibration acted on the sieve, the materials are loosed, are divided into layers, are transported and are permeated the sieve to screen the materials. Discrete Element Method (DEM) has been an effective numerical method to research the granule system motion. Using Particle Flow Code (PFC) based DEM, the screening process, the particle group motions on the screen, are simulated. How the amplitude, the frequency of vibration, the vibration direction angle, the decline degree of sieve effect screening efficiency are presented.
Research on Mechanical Properties of Bambusa Distegia Thread Plywood
Authors: Yu Yun Shui , Zhou Wei Hong , Liu Xue , Xiong Xue Liang
Published: February 2012

Bambusa distegia were used to make bamboo thread plywood by the process of producing thread, dipping thread into glue, assembling pattern and pressing. Influence of hot pressing pressure on mechanical properties of bambusa distegia thread plywood was investigated, which was 2.0MPa，2.5MPa，3.0MPa，3.5MPa and 4.0MPa respectively. The results indicate that the modulus of rupture(MOR), modulus of elasticity(MOE), compressive strength(CS), and horizontal shear strength(HSS) increase with the increasing of hot pressing pressure. Mechanical properties of the Bambusa distegia thread plywood are higher than the indices of plywood for concrete form and the indices of plywood for container flooring.
Hot Workability Map for Near-α Titanium Alloy Ti-5.6Al-4.8Sn-2Zr-1Mo-0.35Si-0.7Nd
Authors: Li Ming Man , Xun Qui Jian , Zhang Shang Zhou
Published: February 2012

The characterizations of hot working behavior of a near-α titanium alloy using the approach of processing maps are described. Processing map in the α+β region exhibit a domain of the globularization process of lamellar structure and α dynamic recrystallization with a power dissipation efficiency of 0.6-0.9. In the β region the map exhibited a domain centered around 1060°C and 0.1 s-1with a power dissipation efficiency of 0.76 where the β phase undergoes dynamic recrystallization. At higher strain rate flow instability occurs in the α+β region due to adiabatic shear bands formation as well as in the β region due to flow inhomogeneity of β phase.
Numerical Simulation of Electroslag Remelting Process for Producing GH4169 under Different Current Frequency
Authors: Liang Qiang , Chen Xi Chun , Ren Hao , Shi Cheng Bin , Guo Han Jie
Published: February 2012

A comprehensive analysis of the physical processes that occur in Electroslag Remelting (ESR) process under steady state conditions and axisymmetric was performed using the simulation software MeltFlow. The detailed plots of current distribution, volumetric heating, flow, temperature and turbulent mixing provide insight into the various physical phenomena that occur in ESR process. The effect of current frequency on various physical fields was analyzed. It is shown that, the current in the slag tends to become more uniform due to the low electrical conductivity of the slag; after the current enters the ingot, the skin effect increases with the increase of the current frequency; the Joule heating and the Lorentz force are highest near the tip of the electrode in the slag, and increase with the increase of the current frequency; the velocities in the slag are slightly higher than those in the molten metal pool; with the increase of the current frequency, the liquidus temperature moves down, and the molten metal pool is deepened. Simulation results agree well with experimental results. Therefore, the generation and extent of defects could be predicted in different process.
Physical and Mechanical Characteristics of Non-Clinker Slag Cement Concretes
Authors: Qin Yi
Published: February 2012

The performance of non-clinker slag cement concretes depends on the alkalinity of water quench blast furnace slag, the chemical composition, the rate of vitrification and the type and quantity of excitant. Non-clinker slag cement concretes was prepared with phosphorus gypsum as the excitant. by using the method compare with ordinary cement concrete（OPC）,We test strength and the bond strength of reinforced. The result showing, the Workability of NSC is better than OPC, the early strength lies in the ettringite and Approaching OPC. The long-term intensity lies in the C-S-H and Far more than OPC.
Crystallization Behavior of Al-Y-Ni-Co Metallic Glass
Authors: Yang Xia , Yang Shou Jie
Published: February 2012

As an important lightweight and high-strength structural material, aluminum alloy is the optimum material for airplane and aircraft. Amorphous Al-based alloys are attractive materials for structural applications because of their high strength of about 1000MPa. Crystallization behavior of amorphous Al-based alloys is critical to the synthesis of high-strength nanocrystalline aluminum alloys in bulk form. The crystallization behavior of an Al85Y8Ni5Co2 metallic glass produced by rapid solidification of the melt was studied in this paper. Microstructure transformation during crystallization was identified by X-ray diffraction. It is found that the initial crystallization of the amorphous alloy occurs through the precipitation of α-Al particles, followed by precipitation of hcp-Al3Y and an unidentified phase.
Research on Erosion of Metal Materials for High Pressure Pipelines
Authors: Zhang Ji Xin , Fan Jian Chun , Xie Yong Jin , Wu Han Chuan
Published: February 2012

Erosion phenomenon is quite common in petroleum industry, as one of the main mechanisms of material degradation, occurs frequently on high-pressure pipelines in hydraulic fracturing operation. With the increasing of operation times, the erosion and corrosion defects on the inner surface of the pipeline, would lead to serious material loss and equipment failure. In this paper a new type of test machine was developed to simulate the erosive wear behavior of metal materials caused by the multiphase fluid such as fracturing fluid, and study the erosion failure mechanism by various metal erosion influencing factors including the velocity of multiphase flow, solid particles of fracturing proppant and impact angles, etc. The erosion-wear experiments on 20CrNiMo steels used in high-pressure pipelines is described in detail. Finally, the microcosmic surface testing was also used to analyze the erosion failure mechanism of metal materials for high pressure pipelines.
Microstructure Refinement in Low Carbon High Manganese Steel through Ti-Mg Deoxidation
Authors: Kong Hui , Dai Wei , Shao Shuai , Yue Qiang , Zhu Jiang Xing , Yao Hu Cheng , Gan Bin Zheng
Published: February 2012

The low carbon high manganese steel (C: 0.07, Mn: 2.0, mass percentage) was deoxidized by Ti and Mg alloys, and its features of inclusion and microstructure were systemically studied. Through the scanning electron microscope (SEM) and Energy Dispersive X-ray Detector (EDX), it can be seen that in inclusions, the element of magnesium always coexists with titanium, and no single-phase oxides of magnesium are observed. After etching in 3Vol% natal solution, it’s found that the Mg-contained and Ti-contained inclusions can act as nucleation sits for the intragranular acicular ferrite. These results imply that besides the pinning effect, the oxide of magnesium can also participate in the nucleation for intragranular acicular ferrite. Thus, it may be used in the oxide metallurgy to refine the ferrite microstructure.
The Changes of the Micro Structure by Deterioration Factors for LILW Waste Disposal Facility Concrete
Authors: Kim Ki Beom , Jung Hae Ryong , Kwon Ki Jung , Lee Jang Hwa , Kim Do Gyeum
Published: February 2012

One of the most important deterioration mechanisms of concrete is that caused by the changes of the cement matrix. For this reason, the Freezing and Thawing and Sulfate attack of concrete has been considered for years a subject of interest in researches of cement chemistry. The concrete deterioration process is a complex physicochemical process that slowly modifies the structures of the concrete in the course of time and induces changes into its chemical and physical properties
Simulation Analysis of Support Installation Vehicle’s Working Unit Based on ADAMS
Authors: Guan Hui Sheng , Luo Ke Long , Dong Dong
Published: February 2012

This paper introduces the structural composition and the working principle of the support installation vehicle. The 3D model of the support installation vehicle is established in SolidWorks and imported into ADAMS. Then the virtual prototyping model of the support installation vehicle is established with ADAMS software. The dynamically leveling angle curve of the leveling mechanism is obtained by the simulation analysis. Curves of cylinders’ driving force and the joint force are also derived. The results of simulation analysis contribute to the finite element analysis of working unit and the designs of cylinders of the support installation vehicle.
Study on PROFIBUS-DP Field Bus in Mine Hoists Control System
Authors: Chen Huai Zhong
Published: February 2012

Aiming at the disadvantages of conventional relays in control of mine hoists, this article induces application of full digital DC speed adjusting device based on PROFIBUS-DP field bus. This article gives the control system hardware configuration and software design. This design can make mine hoists perform stably and safely, fully meeting the requirements of modern mining hoists system to upgrade.
An Analysis of Postmodernism Theory’s Performances in Architecture and Interior Design Field
Authors: Zhu Zhong Cui , Qian Wei Qun
Published: February 2012

This Paper discusses the origin and development of the postmodernism theory, and then, expounds its influence on architecture and interior design fields separately with its representatives. At last, the thesis concludes that postmodernism effect the architecture and interior design process greatly. Meantime, it presents that we should push forward the development of Chinese architecture business by drawing support from postmodernism theory.
The Emulation Design of Hall Component Based on ANSYS Software
Authors: Zhai Wei Wei , Zhang Yu , Lin Xiao Long , Wu Li Chun , Zhang Jia Quan , Xu Yi Wen , Zhang Tie Qiang
Published: February 2012

This essay describes the design methodology of Hall component based on ANSYS soft emulation, and analyses the key parameters of Hall component affecting its performance in the design process. The ANSYS software emulation results shows that Hall voltage will be affected by the Hall components with different length to width ratio and the plus electrode in different length and width. The length to width ratio of 1.5 to 2 will get better results, and it proves that the width of the electrode should be less than one-tenth the size of length. The Hall voltage within a certain range will increase with increasing length of Hall components plus electrode. So it is important to choose the best size ratio when designing the Hall components.
Experiment on Deformation Process of Magnetic Fluid Coated Inside Orthogonal Ducting
Authors: Cui Hai Rong , Yang Chao Zhen , Sun Ming Li
Published: February 2012

Magnetic fluid drag reduction which is based on the character of magnetic fluid by adhered magnetic fluid inside to the boundary surface of duct for fluctuating in synchronism with current flowing in order to make stiffness boundary surface replaced flexible boundary surface is introduced. The deformation process and flowing state of magnetic fluid coating is discussed and analysed. It is found that due to reflux in it, magnetic fluid could reduce drag only at the moment that the reflux volume of magnetic fluid is equal to the flowing volume of magnetic fluid while the thickness of magnetic fluid coated layer is appropriate.
Instantaneous Flow Characteristics for General Gear Flow-Meter
Authors: Jun Zhang , Teng Zhang , Zhang Cheng , Juan Tao
Published: February 2012

As we know, the hydraulic problems, the ordinary gear flowmeter pulsation of the flow rate and the pressure pulsation of the defects, remain to be solved. The article started from the analysis of Instantaneous flow characteristics for general gear flow-meter, with the control variables method, relationship between the number of gear teeth and flow pulse rate was studied.The rule was discovered that while gear's number of teeth is bigger, the flow and press pulsation for general gear flowmeter is less. The paper conducted the simulation research on instantaneous flow characteristics for general gear flow-meter. The results show that: while z1=z2=30, the flow pulsation rate equals 7.05%. While z1=z2=8, the flow pulsation rate equals 24.45%. While z1=19, z2=14, the flow pulsation rate equals12.73%. This research has provided the theoretical basis for the gear flow-meter's design.
Research on Evaluation Model of Enterprise Network Resource Coordination
Authors: Shi Yong Gui
Published: February 2012

The coordination mechanism of enterprise network resource refers to the rules which the enterprise network members are able to comply with and unity action in order to achieve the expected goal. The rules mainly include: opportunity discovery mechanism, communication mechanism, strategy consultation mechanism and the learning mechanism of enterprise network, as well as the evaluation of coordination effect. The aim of constructing maturity model of enterprise network resource coordination is to make the agent of enterprise network understand the situation of network resources, and provide path description for improving coordination of network source, improving coordination mechanism. Maturity model of enterprise network resource coordination should be considered in four dimensionalities: coordination costs, coordination process, coordination method and learning ability. According to the dimensionality level or quality, enterprises network source coordinated maturity model may divided into four levels: the initial level, polymer level, standard level and optimization level.
Study on Recrystallization Behaviour of Hot Medium Plate Rolling
Authors: Tian Ya Qiang , Tian Fei , Wei Ying Li , Song Jin Ying , Chen Lian Sheng
Published: February 2012

The effect regulation of recrystallization softening on rolling load of 16MnR plate hot rolling was studied by means of researching theory analysis and experiment model based on the simulation of the austenitic recrystallization of 16MnR plate hot rolling. The results show that it is static recrystallization totally and almost partial static recrystallization in pass of 16MnR plate hot rolling, the measurement results are in accordance with the prediction value of consideration the effect of recrystallization softening on rolling load of 16MnR plate hot rolling, the Sims equation is suitable for calculating the rolling pressure of the pass after complete recrystallization softening of plate hot rolling.
Principal Factors Preventing CER: Behavior Angle
Authors: Liu Chang Qing
Published: February 2012

Studies on principal factors preventing CER (China Environmental Risk) from Behavior Angle are seldom found, so we studied principal factors preventing CER from Behavior Angle, including their selection, contribution and sequence in this thesis. By our analysis, principal factors preventing CER from Behavior Angle can be ordered by contribution as follows: production waste disposal, living waste disposal, market management, public management, natural cause, living action, and production action. And our related advice is as follows: first, careful protection of natural environment. Secondly strict surveillance on production of waste from such behaviors as enterprise production and human living action by market management and public management, etc.. And thirdly great encouragement to arouse interest in technological innovations friendly with the environment in waste disposal, etc..
Research on the Model of the Internet of Things Servers Group Automatic Expandability Management and Control
Authors: Ju Hong Yao , Wang Xin
Published: February 2012

The internet of things automatic expandability management and control technology are a key technology,which include adjusting member server numbers immediately according to load of servers group,optimizing internet of things servers system performance,making the system response time become fast,and making servers system energy consumption decrease.With the integrated technology research of detecting servers load,expandability management and control,load balance and so on ,the problem ,which is the internet of things servers group numbers are increased or decreased automatically when the internet of things servers load is too heavy or too light,is solved, servers group intelligent expandability and servers group intelligent load balance are realized.With system test,servers system performances and response times are improved obviously.
Information Service Platform for Region Oriented to Ceramic Industry Cluster
Authors: Li Hui Ying
Published: February 2012

By analyzing the characteristics of China’s ceramic industry and ceramic industry cluster, the lack of China’s ceramic industry was found. In order to promote the overall level of China’s ceramic industry upgrading, according to the characteristics of China’s ceramic industry cluster, the application of information technology, the information service platform for region oriented to ceramic industry cluster was designed, and the characteristics of platform and the key technologies were presented and analyzed.Finally,the application case of studies was given.
Tax Benefits of E-Commerce in China
Authors: Zou De Jun
Published: February 2012

E-commerce developed to become an important part of the economy should be considered the beginning of the taxation of electronic commerce. But e-commerce should be given tax incentives, this offer should be based on encourage certain behaviors and commodity.
Research on Forming Process and Deformation Rule for the Necking of Viscous Medium under Outer Pressures
Authors: Gao Tie Jun , Liu Zhan Jun , Wang Yao , Wang Zhong Jin
Published: February 2012

In this paper, a novel forming method of viscous medium outer pressure necking is presented. Influences of buckling and wrinkling as well as viscous medium properties in necking process on the forming process is analyzed by finite element method. As a result, rules of deformation of the viscous medium and variation of the tube blank shape in the necking process are obtained, and influences of the viscous medium properties on buckling necking amount and appearance variation of wrinkles are concluded. The research results show that viscous medium can alleviate the influence of buckling and wrinkling on the forming process of necking under certain conditions, and increase the necking deformability of tubular blanks. Meanwhile, choosing viscous medium with high rate-sensitivity is helpful to improve the necking limit.
Optimal Application of the Betatron
Authors: Han Lei , Zhang Xiao Xing , Dai Yu Jie , Lv Ying Jie
Published: February 2012

The betatron is a very important instrument to impart high energy to light charged particles such as electrons. In this paper, we propose two optimal ideas to improve the efficiency of the original betatron application. With our approaches, the efficiency of betatron could be improved to nearly 100%. And the current density of the electron beam can also be improved obviously.
Extraction Kinetics of Cerium(III) from Chloride Medium by Di-(2-Ethylhexyl)phosphoric Acid in the Presence of Acetic Acid Using a Constant Interfacial Area Cell with Laminar ﬂow
Authors: Chang Hong Tao , Li Mei , Liu Zhao Gang , Hu Yan Hong , Zhang Fu Shun
Published: February 2012

The Ce(III) extraction kinetics with di-(2-ethylhexyl)phosphoric acid (D2EHPA) in the presence of a complexing agent acetic acid(HAc) has been investigated using constant interfacial cell with laminar ﬂow. The kinetics mechanism and extraction rate equation were achieved by the studies on the effect of stirring rate, temperature and specific interfacial area on the rate of extraction. The effect of temperature on the kinetics was analyzed, the value of the apparent activation energy was calculated as 11.96 kJ/mol, and it was found that the extraction process was a diffusion-controlled kinetics regime.
Optimized Design of the Horn of Ultrasonic Roll Welding
Authors: Shu Kuen Ming , Li Yu Guang , Chan Chun Chi , Kuan Jonq Bor
Published: February 2012

Previous studies on the amplitude horn only calculated sizes in consistent with the axial resonant mode frequency and disc bending resonant mode frequency without considering the overall stress and the amplitude of the disc’s outer ring. The resonant frequency of the amplitude horn cannot occur around 35 kHz. Such a design results in the inability to weld and may damage solar panels or lead to poor welding quality. Using the optimization method to address these problems, the proposed design process in this study is to conduct sensitivity analysis by the gradient method to understand the impact of design variables on the objective function for the selection of design variables. Then, this study applied the random search method to find out the feasible design of arrays to optimize the structure of two arrays closest to the design objective by the full factorial experiment method to ensure to get the global optimal solution rather than the local optimal solution. Finally, by design examples, this study used the sub-problem approximation method to search the optimized solution and compared the differences of the two methods, in order to confirm whether the objective of optimized design of amplitude horn had been achieved.