bluuebunny/crossref_metadata_2025 huggingface dataset:
Measurement of Electrochemical Machining Initial Gap Based on Machine Vision
Authors: Kang Min , Li Hou Shang , Fu Xiu Qing
Published: May 2011

In order to measure the initial gap between the workpiece and tool-cathode in electrochemical machining, the measurement method based on machine vision was studied in this paper. First, the measurement system based on machine vision was established. The hardware of the system consisted of CCD camera, image data acquisition card, light source and computer. The software of the system was developed by VC++6.0. Then, the original digital image of electrochemical machining initial gap collected by the CCD camera system was changed into the contour of image through graying, bivalency, edge detection and segmentation. Through system calibration, the physical size of the gap was calculated. Finally, relative experiments were carried out. The experimental results validated the feasibility of the method which measures the electrochemical machining initial gap based on machine vision.
Design of an Innovative Aviation Integrated Electronic Equipment Rack
Authors: Chen Xue Yong , Zhao Ning , Sun Shuan Hui , Wang Xiao Liang
Published: May 2011

This design is an open-loop aviation electronic equipment rack based on ARINC600 for a aircraft under only air exhaust condition. Conduct tress and stiffness analysis via ANSYS calculating the maximum stress and the maximum distortion. Calculate the maximum power of electronic equipment suitable for this equipment suitable for this equipment rack through heat transfer theory and provide theory basis for electronic equipment layout on the overall aircraft.
A Study on Data Acquisition from Sections of Virtual Coat Profile
Authors: Xu Ji Hong , Dai Xiao Lin , Gao Shu Ping
Published: May 2011

Data was obtained through scanning manikin and coats separated by using [TC]2 3D body scanner. The method, using [TC]2 scanner as the experimental method and through double converting the scanned data format to get torso geometric section sets, was analyzed. Main program source code of Torso was provided in this paper. Geometric algorithms of point cloud data and curve data in there sections was provided based on the interception ways of horizontal sections, vertical sections and other random oblique sections toward torso geometric cross section.
Monthly Load Forecasting Based on Optimum Grey Model
Authors: Wang Ting , Jia Xi Miao
Published: May 2011

Due to the variety and the randomicity of its influencing factors, the monthly load forecasting is a difficult problem for a long time. In order to improve the forecast accuracy, the paper proposes a new load forecast model based on improved GM (1, 1).First, the GM (1, 1) is used to forecast the load data, which takes the longitude historical data as original series, the increment trend of load was forecasted and takes the crosswise historical data as original series, the fluctuation trend of load was forecasted. On this basis the optimum method is led in. An optimal integrated forecasting model is built up. The case calculation results show that the proposed method can remarkably improve the accuracy of monthly load forecasting, and decrease the error. The integrated model this paper describes for short-term load forecasting is available and accurate.
Hydroscopic and Mechanical Properties Performance Analysis of Rice Husk Powder/PLA Composites
Authors: Hua Jin , Zhao Zhi Min , Yu Wei , Wei Ben Zheng
Published: May 2011

The rice husk powder was modified by polymer (lactic acid) (PLA) and Maleic anhydride (coupling agent, MAPP). Composite material was prepared in the way of melt blending. The mechanical properties, water absorbability of rice husk/polymer (lactic acid) (PLA) composites, and the relations between these properties and microscopic characteristics were investigated. The result showed that, with the increasing content of rice husk power, the maximum bearable tension and tensile strength increased; Water absorbability after 2 hours’ immersion hadn't significant change, but after 24 hours’ immersion, the water absorbing capacity had obvious addition. The study also showed that coupling agent could significantly reduce the water absorbability of composite materials; The use of scanning electron microscope (SEM) found that the interface became smoother, the adhesion between PLA and rice husk powder became closer when add the coupling agent to the rice husk powder, it also could well explain the differences between water absorbability and mechanical properties.
An Cold Experimental Analysis of Draught System with Chain-Grate Stoker
Authors: Zhang Zhi Ying , Lu Jia Hua
Published: May 2011

The study of cold state testing and evaluation analysis were carried on the practical running chain-grate stoker, which has an air-supply system with air storehouse and airtrough, to study the air-distribution, air leakage, air tightness and air governing. The result shows that horizontal air distribution across the furnace and the air tightness of the components such as the air port (damper) and airtrough are good. However the air leakage is large because of the complex structure and the high demand of integrated air tightness either in the front or the back of the stoker. The cost of the stoker is high because of large quantity of machine work after casting and high demand of installation, thus the structure should be improved.
Reaction Synthesis of (Ti,V)2AlC/Al2O3 Composite
Authors: Zhu Jian Feng , Han Na
Published: May 2011

The (Ti,V)2AlC/Al2O3 solid solution composite has been synthesized by in situ aluminothermic reduction of the blend powders of Ti, Al, V2O5 and active carbon. The phase evolution during the formation of the composite was examined at the temperature from 500 °C to 1400 °C. Based on the results of X-ray diffractometry (XRD) and differential scanning calorimeter (DSC), a possible reaction mechanism was proposed to explain the formation of (Ti,V)2AlC/Al2O3 solid solution composite. Above the melting point of aluminum, liquid Al reacted with titanium to form the intermetallic compound of TiAl. As the temperature increased to 1300 °C, the intermetallic compound of TiAl reacted with TiC to form Ti2AlC. The microstructures of the as prepared samples were also analyzed by the scanning electron microscope (SEM) together with the election dispersive spectroscopy (EDS).
Research on Multi-Core Collaborative Computing for FWP Image Processing Algorithm by FPGA
Authors: Deng Yao Hua , Liu Gui Xiong , Han Wei , Fang Zi Wei , Wu Li Ming , Liao Qing Fu
Published: May 2011

On the basis of analysis of research on embedded soft hardware collaborative design method, image processing SOPC collaborative design principle is elaborated, relation between complicated algorithm time and soft hardware implementation and the implementation method to accelerate algorithm by multi-processor and multi-core is studied, thus the logical relationship between equipment IP core on the chip with Fast Simplex Link(FSL) bus and bus bridge, connecting conditions and application flow is organized. Finally, design SOPC, for which, multi-core and multi-processor collaborative work with the core of PowerPC 405 processor by taking flexible workpiece path (FWP) image as an example. The test manifests that the computation speed of SOPC designed in this passage is higher 10 times than that of common single-core SOPC in terms of image processing computing, effectively solving the problem of slow speed for computing image preprocessing by software in the embedded system.
Effect of Adhesive Thickness on the Impact Toughness of Butt-Joints
Authors: You Min , Hu Jing Rong , Zheng Xiao Ling , He Ai Ping , Chen Cun Jun
Published: May 2011

The effect of the adhesive thickness on the impact toughness of the adhesively bonded steel joint under impact loading is studied using the experimental method. The results obtained show that the impact toughness increases when the adhesive thickness increased then it decrease as the adhesive thickness increase. When the curing time is set as a constant, the higher the curing temperature is, the lower the impact toughness of the joint. The optimum thickness of the adhesive layer for the specimen of impact toughness test cured at 60 C for 1 h is 0.6 mm and it is 0.4 mm to 0.6 mm for the specimen cured 1 h at temperature of 90 C or higher than it. It is recommended using the notched specimen to decrease the testing deviation.
Solving Large-Scale Asymmetric Sparse Linear Equations Based on SuperLU Algorithm
Authors: Wang Pei , Yang Xu Sheng , Wang Zhuo Yuan , Li Lin Gong , He Ji Chang , Wang Qing Jie
Published: May 2011

This article introduces the recent research of SuperLU algorithms and the optimal storage method for [1] the sparse linear equations of coefficient matrix. How to solve large-scale non-symmetric sparse linear equations by SuperLU algorithm is the key part of this article. The advantage of SuperLU algorithm compared to other algorithms is summarized at last. SuperLU algorithm not only saves memory space, but also reduces the computation time. Because of less storage needed by this algorithm, it could solve equation with larger scale, which is much more useful.
Reduction Kinetics of Bayan Obo Associated Iron Niobium Ore
Authors: Zhang Fu Shun , Zhao Zeng Wu , Zhang Fang , Feng Nai Xiang
Published: May 2011

The mass loss rate of carbon-bearing pellet during reduction process was investigated at the temperature from 900 to 1050 °C. The results show that temperature is the significant influence factor to the reduction of carbon-bearing pellet. In addition, the reduction process includes two stages and the first stage is faster than second stage. Both of steps are controlled by carbon gasification, and that is confirmed by means of the activation energy.
The Research and Preparation Method of the Wire Rod, Strip Galvanization Brightener
Authors: Shi Lei , Zhang Fu , Chen Jia Jun , Wang Shi Lin
Published: May 2011

Use Hall-trough experiment and simulate actual wire rod, the strip, the tubing galvanization experiment to galvanize the copper matrix and the iron matrix separately, the polarization curves of plating fluid before and after adding brightener were obtained. The influences of the brightener to the sulfate plating fluid and the zinc coat were investigated. It indicated that after adding the brightener, the performances of plating fluid and coating have been improved obviously, so the coating become smooth and luminous. And satisfy the demand which the wire rod, the strip and the tubing under the big electric current can galvanize fast.
The Research and Preparation of one Kind of Sylvite Galvanization and Sulfate Galvanization General Brightener
Authors: Shi Lei , Chen Jia Jun , Zhang Fu , Shang Guang Xu
Published: May 2011

C6H5COONa, C10H10O, AESA, NNO diffusion powder, OP emulsifier, C6H5NO2 and so on in a certain proportion have been dissoluted and mixed evenly, then refined as the brightener needed. The contrast experiments with the obtained brightener to the sylvite galvanization and the sulfate galvanization separately are carried. It indicated that through controlling the quantity of adding the brightener, it can satisfy the demand that the surfaces of the sylvite galvanization specimen and the sulfate galvanization specimen are luminous, compact and well-leveling. It indicated that this brightener is one kind of sylvite galvanization and sulfate galvanization general brightener.
Analysis of Cooperation Game to Reverse Logistics System for Regional Economy
Authors: Fan Jia Jing
Published: May 2011

It can help enterprises to decrease cost, add income and then improve their competitiveness that the enterprises within the regional economic jointly build the recovery processing center. A cooperation game model is put forward to enterprises with the regional economic, and then analyses the effect factors which include the scales and quality of recovery products of enterprise itself. At last, this paper advances the income distribution proportion interval which the enterprise pleasure to co-construct the recovery processing center.
Parameter Design of Vibration Screener
Authors: Hao Wen Si
Published: May 2011

The Vibration screener is widely use in metallurgy, building materials, chemical industry, grain, mine, etc. In this paper, we analyze the motion of object on the screener, and then build the mathematical model to maximize the productivity ratio. Take the example of straight Line vibration screeners with mode ZKB. After maximizing with our method, the result shows that our method increases 22% in the productivity ratio, and the chance of object touching the screen holes increases 43%. This paper provides an effective method for the optimal design of screener in future.
HMM-Based Speaker Emotional Recognition Technology for Speech Signal
Authors: Qin Yu Qiang , Zhang Xue Ying
Published: May 2011

In emotion classification of speech signals, the popular features employed are statistics of fundamental frequency, energy contour, duration of silence and voice quality. However, the performance of systems employing these features degrades substantially when more than two categories of emotion are to be classified. In this paper, a text independent method of emotion classification of speech is proposed. The proposed method makes use of short time log frequency power coefficients(LFPC) to represent the speech signals and a discrete Hidden Markov Model (HMM) as the classifier. The category labels used are, the archetypal emotions of anger, joy, sadness and neutral. Results show that the proposed system yields an average accuracy of 82.55%and the best accuracy of 94.4% in the classification of 4 emotions. Results also reveal that LFPC is a better choice as feature parameters for emotion classification than the traditional feature parameters.
Measurement on Pyrolytic Active Materials of Bagasse Biomass by Py-GC-MS
Authors: Zhang Zhong Feng , Zeng Chao Feng , Peng Wan Xi , Zhang Xu
Published: May 2011

In order to find out its active materials, the extractives of bagasse biomass were adsorbed and determined by Py-GC-MS. And the main constituents were 1-phenanthrenecarboxylic acid, 1,2,3,4,4a,9,10,10a- octahydro-1,4a-di methyl-7-(1-methylethyl)-( 24.24%), nonadecane, 1-chloro-(4.36%), stigmast-4-en-3-one(3.94%), 1-nonadecene(3.84%), etc.
Experimental Study on Reinforcing the Prestressed Concrete Hollow Slab with CFRP
Authors: Wang Yu , Zhao Xiang , Luo Neng , Wang Lin
Published: May 2011

According to the practical situation (loaded by the second time), nine pieces of prestressed concrete hollow slabs which had been reinforced with CFRP were experimented on. And symmetric load was putted on the three-point of the hollow slabs. In this paper, the effects of different pasting methods and quantity of CFRP on mechanical performance and reinforcement effect of prestressed concrete hollow slabs which were damaged in varying degrees were studied. And the ultimate bearing capacity, failure mode, types of cracks and load-deformation curves of test specimen after being reinforced was analyzed systematically. After contrasting and analyzing the trial value of prestressed concrete hollow slabs, a simple, economic and reasonable reinforcing program was obtained.
A Macro-Micro Coupled Simulation of Positive and Negative Extrusion for Cardan
Authors: Tong Ying
Published: May 2011

The cardan belong to dial the fork kind parts, its forming is difficult and forming high quality requirements. Establish macro-micro coupling, and a simulation model for the cardan negative extrusion forming process, a numerical simulation considering the deformation and heat conduction, deformation heat production, friction heat production, dynamic recrystallization and so on many factors. Analyze the deformation process detection cardan anti extruded deformation in advance and is extruded deformation. Meanwhile analysis showed that the cardan forgings have internal 59.929% area completely modification, have 4.7944% area did not happen dynamic recrystallization and didn't get forging modification, and forecasts the cardan internal grain size and distribution, the micro analysis for the prediction of forgings performance and design heat treatment process, provides the basis.
A Study on Intelligent Tubing Flow Measuring System Based on CAN Bus and LabVIEW
Authors: Wang Jian
Published: May 2011

This paper has proposed an intelligent tubing flow measuring system based on CAN bus and LabVIEW. The CAN bus can collect data from the field nodes and can control communication. The virtual instrument LabVIEW analyzes and processes the optimized data. The test shows this system has a strong ability to resist disturbances, a very high reliability and environmental adaptability while maintaining a high controlling accuracy.
Evaluation of the Axial End Flatness Error Based on Genetic Algorithm
Authors: Yang Xiu Min , Liu Hao , Guan Peng , Zhang Lei
Published: May 2011

This paper introduces the algorithm structure, principle and method of the evaluation of the flatness error based on genetic algorithm. Detailedly describes how to use genetic algorithm based on real number encoding to evaluate the flatness error and gives algorithm process.MATLAB’s GA algorithm toolbox is used to evaluate the flatness error. Describes and explains the parameter setup of every step detailedly and compiles M-file used of algorithm of fitness function. The structure which is carried out by the simulation is satisfying. Simulation process and the results prove that it’s right to use genetic algorithm based on real number encoding to evaluate the flatness error to calculate convergence.It can get the result rapidly and ideally.
The Study on Fuzzy Control of Automotive Clutch
Authors: Zhang Lei , Zhang Xiao Ming , Yang Xiu Ming , Liu Yan
Published: May 2011

Due to the complexity of the car running condition, the differences of the subjective intention of the driver, and Continuously Variable Transmission control system itself existed nonlinear, time delay, interference, variable parameter factors, the traditional control arithmetic based on scale model is hard to meet the clutch control requirements. This article through to design the drive mechanism of the dry friction clutch on a new, without hydraulic pump, pure electronic control car continuously variable transmission, and analyze its mechanical properties and control target, the clutch control model was established, according to the fuzzy control theory, driving experience and developers’ technical experience, the corresponding fuzzy language rules were formed, and intelligent control of the clutch on the single-chip control system was realized. At present, the pure electronic control continuously variable transmission has been tested on the experimental bench and car operation, and has passed the inspection by the national vehicle quality supervision and inspection center (Chongqing) and the identification by China Machinery Industry Federation .
Simulation of Loss of Coolant Accident in an Integral Pressurized Water Reactor (IPWR)
Authors: Khan Salah Ud Din , Peng Min Jun , Zubair Muhammad
Published: May 2011

In this paper research has been carried out on the Loss of Coolant Accident (LOCA) in an Integral Pressurized Water Reactor(IPWR) by using thermal hydraulic system code Relap5/Mod3.4.The designing of Integrated Pressurized Water Reactor (IPWR) incorporates the safety and reliability of the reactor to withstand under accidental vulnerabilities. In this study, the reactor under consideration is Uranium Zirconium Hydride Nuclear Power Reactor INSURE-100 with the power output of 100MW.In the current research, the reactor has been described in detail according to the requirement for the simulation of LOCA using Relap5 code with the possibility of occurrence of the time sequence of events. The graphs obtained shows good agreement for the safe operation of IPWR under LOCA.
The Research on the Effects of the Multilayer Gauze Stage with Different Layers
Authors: Wang Zhong Yi , Han Jia , Sun Tao , Ye Nan
Published: May 2011

The mesh of the multilayer gauze stage was simplified from the crossing arrangement to the unilateral arrangement, and the simplification from three-dimensional to the two-dimensional came true. The calculation capacity was effectively controlled by means of the periodic boundary. The numerical simulation of the multilayer gauze stage with different layers has been done. After the several calculation with different operating conditions, the resistance characteristic curves of the corresponding models was gave out. The relationship between the layers of the multilayer gauze stage and the resistance characteristic has been worked out. The experiments on resistance specialty of the multilayer gauze stage have been done on the special wind-tunnel. The experiment result was compared with the numerical simulation result, in order to provide the effective information for the further research.
Analysis and Solution of Pin Connector Stresses
Authors: Lin Gui Yu , Zeng Yong Quan , Xiao Bin
Published: May 2011

In this paper, three-dimensional solid contact finite element model of pin connector was build,and used this model to make careful checks of a variety of analytical algorithms of dangerous section’s stress of lug ,finally established reasonable analytical algorithms of dangerous section’s stress of lug.
Application of Accuracy Engraving Technique in the Motorcycle New Product Development
Authors: Liu Xin , Du Hai Qing , Wang Wei Dong
Published: May 2011

The relative merits of accuracy engraving technique and rapid prototyping technique during processing are discussed. Because the product dimensions are small and the strength of the rapid prototyping sample workpiece in vertical direction is too small to meet the engineering design requirements, the method using accuracy engraving machine to replace rapid prototyping machine to design product with large size and need to assemble like motorcycle cover is proposed. If the product size is too large, it can be split and every part is carved with the accuracy engraving machine, and then they are sticked together to finish the whole part. So the speed of new product development is accelerated, the cost of new product development is decreased, the rapid manufacturing is realized and the traditional design method using only RP machine is improved. This method has been applied to the development for a new motorcycle cover and the application method is expounded.
Research of System Aging Fuzzy Reliability Based on Discrete-Time Condition
Authors: Yang Heng , Xu Ge Ning , Zuo Rong Rong
Published: May 2011

In face of the problem of difficulty in traditional aging fuzzy reliability solving, a deep research is conducted on the aging fuzzy reliability calculation method of components and systems based on discrete-time condition. On the basis of aging fuzzy reliability calculation, the concept of time axis division and fuzzy theory operating rules are introduced. The degree of reliability calculation method of aging fuzzy reliability of individual component and system under the condition of discrete-time is also deduced, and avoid the integral solving problems when the ageing fuzzy reliability of components and systems is calculated. Finally, the analysis of practical example is presented to show the method is feasible and precise when time interval is rationally divided.
Extracting Technology of Dynamic Images of Shower Nozzle Spray Field Based on a New Algorithm of Automatic Threshold
Authors: Lu Pei , Yu Hai Qing , Li Rui
Published: May 2011

Spray field of the shower nozzle has the characteristics of speediness and instantaneity. The interaction among particles in droplet segment and atomization section makes the direction of movement complex and the profile of the image principal part area unclear. It is difficult to divide the images into principal part and background. Lots of threshold segmentation technologies used recently can’t receive satisfied result in the image process of shower nozzle spray field. Therefore, this article proposes a new extracting technology to extract the threshold automatically based on Otsu Method, which uses absolute value to calculate the average gray gap between section and overall and find the suitable threshold. The result of binarization segmentation by this threshold shows that it can express the characteristics of water jets completely and reduce information losing.
Simulation and Analysis of Feedforward Automatic Gauge Control for a Hot Strip Finishing Mill
Authors: Cheng Chi Cheng , Hsu Lan Yuan , Hsu Yuan Liang , Chen Po Tsang
Published: May 2011

In order to fully understand dynamic behavior of the thickness variation and conduct off-line process tuning, a dynamic simulator for the feedforward Automatic Gauge Control (AGC) for a hot strip finishing mill in China Steel Corporation is developed. One of the major factors influencing on deviation of delivery thickness of the steel strip is the temperature variation caused by cyclic contact between the steel strip and beams, which transfer the strip in the hot rolling process. This temperature difference brings about hardness variation along the strip, which is known as skid marks. Simulation results and system analysis verify that the feedforward AGC system is capable of overcoming the high frequency thickness variation disturbed by the cyclic temperature difference, which usually cannot be effectively compensated by regular gaugemeter AGC feedback loop. A strategy to locate the optimal feedforward gain is also proposed.
Study on Ordering Policy of Home Electronics Retailers under the Uncertain Quality Case in the Supply Chain
Authors: Ma Xin
Published: May 2011

Home electronics is short-cycle product with time-sensitive, the market demand volatility and large features and the unreliable environment of supply caused by a variety of uncertain factors. The value of the home electronics will become very low or even lost if it is over more than life cycle. The unreliability home electronics quality of supply is analyzed using quantitative analysis method, the impact of the maximum expected profit and the optimal order quantity of the home electronics retailer by defect rates and customers claim were also discussed in this paper.
Mobile Phone Input Method Interface Evaluation Based on GOMS Prediction Model
Authors: Liu Wei , Li Sheng , Wen Tao , Qin Xian Gang
Published: May 2011

User-centered design plays a significant part in product design. GOMS user behavior model analyze the interface from the aspects of both users and objects, which helps the designers to create a user-friendly interface in an efficient way. In this paper, GOMS model was used to predict the efficiency of the two versions of input interface on a touch-screen mobile phone. In addition, the experiment was conducted to collect the data under the real scenarios, and paired-sample T test was employed to analyze the data. The results indicate the GOMS prediction model can be used to evaluate the efficiency of the mobile phone interface.
Influence of Side-Insulation Film on Hybrid Process of Micro EDM and ECM for 3D Micro Structures
Authors: Hu Man Hong , Li Yong , Zhu Xiao Gu , Tong Hao
Published: May 2011

This paper describes a hybrid process of Micro EDM and ECM to fabricate 3D microstructures. Micro electro discharge servo scanning machining (Micro EDSSM) is used to remove most part of workpiece material with fast machining speed, while Micro electrochemical scanning machining (Micro ECSM) with side-insulated tool electrode is used to remove the residual material and form the final 3D-structure surface. The application of side-insulated electrode during Micro ECSM is a key technological method to improve the machining accuracy of hybrid process. The effect of side-insulation film property to the movement of hydrogen bubble generated during Micro ECSM is discussed. The hydrophobic film can reduce damages to the junction between film edge and tool-electrode through the attraction to hydrogen, and a hydrophilic 704-silica material is firstly introduced for the fabrication of side-insulation film on the micro rod tool electrode by spin-coating technique. The 704-silica insulation film can effectively isolate the side of tool electrode with electrolyte. Micro 3D structures with uniform side-machining gap and small tape side-wall are machined. The surface with no heat-influence layer and 0.52μm Rahas been achieved.
Dynamic Mechanical Analysis of Automotive Gearbox Casing
Authors: Zhao Guang Yao , Fu Peng , Zhou Shu Wen , Tong Shan Ge
Published: May 2011

After the three-dimensional solid modeling of the SG135 automobile gearbox, finite element analysis models of static, transient and harmonic response load are built based on correlation theory. On the basis of ADAMS dynamic simulation of different gearbox gears, transient load of the gearbox casing at different working gears is found out. With frequency response characteristic of gearbox casing analyzed at typical working conditions of first gear and reverse gear, the evaluation of some factors such as strength and stiffness are given out, which provides theory basis for further improvement of gearbox casing structure and strengthening weak links. Based on harmonic response analysis, the impact on gearbox casing structural vibration by harmonic excitation of the engine is imitated, and the match relation of frequency response between the gearbox and the engine is analyzed. Improvements about engine operational limits matching and gearbox structural design are proposed.
Research on Vibration Grinding Deburring and Finishing Process
Authors: Zhang Peng , Guo Xing Yu , Guan Zhi Guang , Shan Shao Fu
Published: May 2011

In mechanical manufacturing, the traditional methods adopted for deburring and finishing is not only high labor intensity, but also difficult to reach the surface roughness and requirements. The vibration grinding deburring and finishing process method is put forward, and the removal of micro hole drilling burr and surface finishing experiments are carried. It can be seen from the experimental results that the vibration grinding process method can thoroughly remove burr and get the finishing effect. The vibration grinding system has the features of low cost and brief operation. The vibration grinding new process method has high practical value.
Transient Dynamics Simulation of Helical Gear Pair Based on ANSYS
Authors: Li Xue Yi , Li San Shuai , Li Chao Chao
Published: May 2011

Transient dynamic theory of the helical gear drive is investigated, and corresponding dynamics equations are derived. Based on parameterized language APDL of ANSYS, a parametric programming module for accurate modeling and automatic assembling of helical gear pair has been developed. The parametric modeling and transient dynamic analysis of a helical gear pair in a crane reducer are performed. Transient stresses and strains of the gear pair throughout the engagement process are obtained and the worst meshing location can be determined. Compared to the traditional static analysis, Simulation results of dynamic analysis are more accurate and reliable which provide the foundation for accurate estimation of the gear fatigue life.
Research for Control System in Ingredient Industry
Authors: Yu Fa Shan , He Hui , Zhang Hong Wei
Published: May 2011

This paper , taken production process in typical production department of glass, cement, chemical industry for example, analyzes their dosing process and technical characteristics , and summarizes that the work of the basic ingredients link in various production departments is in common and other links is arranged according to production requirement combined with the different ways of transporting and feeding materials. The order of production is different, so the number of ingredients link and the complexity of working order are not the same. With "intelligent learning control model" applied to the system, it realized the online self-studying learn and self-adjusting in weighing control, which can on-line judge the speed and precision of weighting, automatically adjust feeder’s speed and advanced argument of stopping-feeding. In a word, in design of control strategy and control software, various characteristics of the ingredients system are taken into full consideration, which choose corresponding weighing method and the control strategy according to the difference of accuracy requirement.
Combination with Machine Learning Algorithms for the Classification in E-Bussiness
Authors: Shi Lei , Ma Xin Ming , Hu Xiao Hong
Published: May 2011

E-bussiness has grown rapidly in the last decade and massive amount of data on customer purchases, browsing pattern and preferences has been generated. Classification of electronic data plays a pivotal role to mine the valuable information and thus has become one of the most important applications of E-bussiness. Support Vector Machines are popular and powerful machine learning techniques, and they offer state-of-the-art performance. Rough set theory is a formal mathematical tool to deal with incomplete or imprecise information and one of its important applications is feature selection. In this paper, rough set theory and support vector machines are combined to construct a classification model to classify the data of E-bussiness effectively.
Nanotribology Properties and Microscopic Interfacial Frictional Behavior Studied by Atomic Force Microscopy
Authors: Hsu Hsiang Chen , Chu Li Ming
Published: May 2011

This paper deals with the description of a method for the measurement of the nanotribology properties and microscopic interfacial frictional behavior with Atomic Force Microscopy (AFM). AFM force-displacement curve is utilized to determine the nanotribology properties. The interfacial coefficient of frictional force can be derived from a serial of calculations. A well-defined contact area is measured to study the frictional force and friction stress. The roughness of contact surface influences the contact between friction and surface forces. The study of roughness parameters corresponds to evaluate the friction and the interfacial strengths. Local variation in micro/nano tribology is also measured. The measured surface topography (3D profiles) are then applied to determinate the potential energy in molecular dynamic (MD) method to study the atomic scale frictional interactions.
Measurement and Test Facility for Solar Heat Gain of Building-Integrated Photovoltaics (BIPV) Modules
Authors: Liu Zheng Quan
Published: May 2011

For achieving the maximum energy efficiency of Building-integrated Photovoltaics (BIPV) buildings, the Solar Heat Gain (SHG) through the BIPV modules should be measured accurately. A solar calorimetry hot box was designed to test the SHG through the BIPV modules in this paper, which could measure the incoming solar and long-wave radiation various BIPV module configurations. Combined with the electric energy production, a new concept of ratio of solar heat gain to power energy generation efficiency was presented in this paper, which can be characterized as the design indicator of BIPV module’s energy efficiency level for BIPV buildings cooling in hot summer. The influence of indoor climate environment parameters on the electric energy output efficiencies of BIPV modules can be conducted by the solar calorimetry hot box.
Modeling of Complex Surfaces Based on Unigraphics and its Error Analysis
Authors: Chen Yue Ping , Nie Xiao Dong , Chen Yan Hui , Li Shi Dong
Published: May 2011

Complex surfaces have been widely used in engineering. However, the current general-purpose CAD systems do not provide the modeling method of some kinds of complex surfaces such as parametric surfaces. In this paper, complex surfaces are generated by calculating the coordinates of the data points on the surfaces, creating the data files, importing the files into UG (Unigraphics), and then making use of the surface modeling functions of this software. Taking a bicubic B-spline surface for an example, the main steps of modeling of complex surfaces are presented and the modeling errors are analyzed in detail. A test is conducted to verify this approach.
Effect of Constraints in Cooling Process on the Residual Stress in the Adhesively Bonded Single Lap Steel Joint
Authors: You Min , Chen Cun Jun , Zhang Jiang Cheng , Hu Jing Rong , Wu Ling
Published: May 2011

The effect of five constraint conditions in cooling process on the residual stress distributed in the adhesively bonded single lap steel joint under a 100°C thermal shock was investigated using the elasto-plastic finite element method (FEM). The results from the numerical simulation show that the effect of constraint model is significantly to the residual stress distributed in both mid-bondline and adherend near the interface of the adhesively bonded single lap steel joint. The constraint to the longitudinal of the adherend is much significantly to the residual stress than that of the transversal one. Comparing the action of the constraint model C and model E, the effect of the model E on the residual stress along the mid-bondline is higher than that of the model C.
Mechanism of the Effect of Interface Structure on the Abrasion Performance of Polycrystalline Diamond Compact
Authors: Fan Wen Jie , Liu Fang , Guo Hong Zhan
Published: May 2011

Abrasion performance is an important performance parameter of polycrystalline diamond compact. This paper focuses on the research for test method of PDC abrasion performance. With the improvement method, the abrasion performance of PDC with five typical macroscopic interface structure such as planar structure, v-groove, u-groove, ring groove, ring claw-tooth are tested at normal temperature and after heating, With SEM, we study on its mechanism of abrasion performance due to different macroscopic interfaces structure, analyze the reason why PDC abrasion performance is different with the changing of PDC macroscopic interface structure. The research result shows that the temperature influenced the wear property and the anti-impact property of PDC obviously. In the same technological conditions, the interfacial structure of the PDC layer and WC-Co substrate has little influence on the abrasion performance, and the diamond and grains can sinter better, causing the excellent abrasion performance of PDC.
The Efficiency of Data Hiding by Manipulating the DPCM Macroblocks in Compressed Video
Authors: Idbeaa Tarik , Jumari Kasmiran , Abd. Samad Salina , Abdulgader Ali , Eshah Nidal
Published: May 2011

Steganography is the idea of embedding a secret data in different media and has become an important regulation of methods of data integration. Although the still images are generally applied in the past, is very popular in recent years for the video. The techniques of video data hiding in recent year’s emphasis on the features generated by the video compression standard, a safer method for steganography uses MPEG-4/H.264 Bit Plane Complexity Segmentation (BPCS) algorithm is proposed in this approach. The reason for choosing such a video coverage is the enormous amount of data that can be hidden in each frame of MPEG-4 video. In other words, MPEG-4 has three types of images: I-frame, B, and P frames. Unlike other techniques used to hide data, such as the LSB algorithm, PBCS can achieve better results in both mathematics expression and human vision. In this paper, data is embedded in the videos of the I-frame until the BPCS can reach high levels of integration with low distortion based on the theory that regions of low noise-levels as in a picture can be replaced by noise without a significant loss of image quality. This approach invents data hidden in high-security environments. Experimental results show the success of hidden data in the selected and extracted data from the sequence of frames and also indicate the effectiveness of the implementation plan of steganography compressed video with high security features.
Research of Furnace Temperature Optimization Control Method in Hot Rolling Process
Authors: Xu Jun Yan , Bu Jian Rong
Published: May 2011

To effectively solve the problems of high energy consumption, low control accuracy and time control-delay for furnace, this paper proposes the intelligent control strategies based on the process feature of walking beam furnace, namely fuzzy-RBF network self-learning and self-optimizing function, which is combined with dynamic PID feedback compensation strategy. The experiment shows that the system not only guarantees the furnace temperature control accuracy and increases the temperature up and down rate under working condition fluctuation, which reduces unit fuel consumption, unit electricity consumption and billet burning loss, but also improves the furnace production capacity.
Internet Video Based Cloud Multisensor Fusion for Remote Services
Authors: Fu Hsin C. , Pao Hsiao T. , Tseng C. L.
Published: May 2011

This paper proposes integrated video techniques, cloud computing, and multisensor data fusion for remote services over Internet. The proposed remote service approach includes three levels of different remote diagnoses: Level (1): Video and audio interaction between customer and remote service sites; Level (2): Signal and data collection from customer to remote service sites; and Level (3): Multisensor data fusion at cloud computing server. The proposed remote services have been successfully tested and evaluated for its performance: (1) 85% of technical manpower saving, (2) 90% of service response time saving, (3) 60% of maximum time to recovery (MTTR) saving, and (4) 95% of service cost saving. In the near future, we intend to implement automated diagnosis and repairing suggestion mechanism to further improve the efficiency of technical manpower of the proposed remote diagnosis and maintenance cloud platform.
Forward Displacement Analysis of the 4SPS-2CCS Generalized Stewart Parallel Robot Mechanism Based on Hyper-Chaotic Sequences
Authors: Luo You Xin , Che Xiao Yi , Zeng Bin
Published: May 2011

The forward displacement analysis of parallel mechanism is attributed to find the solution of complex nonlinear equations which is a very difficult process. Take chaotic sequences as the initial value of Newton iterative method, we can find all the solutions of equations quickly. The paper investigated the initial point generated by hyper-chaotic circuit system and provided a new method and calculation step of finding the all real number solutions of nonlinear equations. Using quaternion, the mathematical model of forward displacement for the generalized 4SPS-2CCS Stewart parallel robot mechanism was established and an example was given. Compared to the topological continuations method the result shows the calculation is brief and general. It can be used in forward displacement of other parallel mechanism. The research builds the theory basis for dimensional design, trajectory planning and controlling of this type of manipulator.
Forward Displacement Analysis of Nine-Link Barranov Truss Based on Chaos Improved Newton Iterative Method
Authors: Luo You Xin , Zeng Bin
Published: May 2011

The chaos improved Newton iterative method finding all real solutions of nonlinear equations was proposed and the forward displacement analysis on the 25th nine-link Barranov truss was completed. Four constrained equations were established by vector method with complex numbers according to four loops of the mechanism and four supplement equations were also established by increasing four variables and the relation of sine and cosine function. The established eight equations are that of forward displacement analysis of the mechanism. Combining improved Newton iterative method with chaotic sequences, chaos improved Newton iterative method based on utilizing new type chaos system introduced by Chen to obtain locate initial points to find all real solutions of the nonlinear questions was proposed. The numerical example was given. The result shows that all real solutions have been quickly obtained, and it proves the correctness and validity of the proposed method.
CFD and Neural Network-Based Predicting for Oil Delivery Performance of Oil Pump in Engines
Authors: Tong Bao Hong , Yin Jun , Liu Yin
Published: May 2011

Oil delivery pefromance of oil pump in engines are investigated by a new prediction method based on computational fluid dynamic (CFD) and artificial neural network (ANN). CFD analysis was done by using Fluent commercial code and distribution of velocity of pump’s internal flow field was achieved by the solving of pump’s CFD model. Infromation data about oil pump’s rotate speed, supplying pressure, oil temperature and oil flow rate were obtained by CFD simulation analyzing. ANN model that used to describe the delivery performance of oil pump was employed, and the model was trained by learning samples from those CFD simulation results. Predicting for the delivery performance of oil pump under various operating conditions were carried out by this model. Experimental results were also used to validate the obtained simulation results. The studies show that the ANN(trained by CFD learning samples) predictions are in very close agreement with the oil flow obtained experimentally or predicted by CFD. The method introduced here can give useful supports for optimization designing of oil pump’s dimension.
The Study on Three-Dimensional Terrain for 3D Game Design
Authors: Wang Zhen , Yang Meng , Xiao Shi Long
Published: May 2011

The game design is a complex and huge task, it requires putting in a lot of manpower and material resources, and spends some time in order to create a beautiful and exquisite design of clever games. The design of three-dimensional terrain has become the focus of attention on this issue. This paper elaborates the theory about how to use the information which is got from the gray-scale map to establish a lively three dimensioned terrain. This paper designs and implements a demonstration to generate the effect of three-dimensional terrain.
An Investigation on Green Machining: Cutting Process Characteristics of Organic Metalworking Fluid
Authors: Lee T.S. , Choong H.B.
Published: May 2011

This paper compares the cutting process characteristics of organic and inorganic coolant for milling process. RBD(refined, bleached & deodorized) palm olein, refined canola and soy bean oil were selected as based oil for soluble mixture(organic) while Jetkool SC95 as inorganic metalworking fluid (MWF). Throughout the research, carbide coated cutting tool and JIS SS400 mild steel are used with various feed rate, depth of cut and fixed spindle speed to determine the cutting temperature, forces and also surface roughness. Heat capacity, pH and tool wear assessment are carried out as well with same material. From the research, cutting temperature, cutting force and surface roughness are proportional to the feed rate and depth of cut. The MWFs pH level also drops after cutting process. Each MWFs showing their different strength on different assessments, overall from the results obtained, palm oil has a high potential to be marketed as organic MWF.
Investigation on Machined Surface Roughness in Ultrasonic Vibration Assisted Grinding (I)
Authors: Zhang Hong Li , Shan Shao Fu , Zhang Jian Hua
Published: May 2011

Based on the generating mechanism of surface morphology by tangential ultrasonic vibration assisted grinding (TUAG), the calculating model for surface roughness is established and the surface roughness experiments are conducted both in TUAG and conventional grinding (CG). The results indicate that the effect of the grinding abrasive size on the surface roughness is the most obvious, and the surface roughness is decreased due to the tangential ultrasonic vibration.
The Ways of Recycling of Solid Inorganic Construction Waste
Authors: Zhang Xiao Jing
Published: May 2011

The origin and constitutes of construction waste and demolition are expounded, and the bane of construction waste and demolition to environment is also introduced in this paper. The ways of recycling of concrete and tile in the construction waste and demolition, which was emphasized, not only mitigate destruction of the waste to the environment , but benefit the development of society.