bluuebunny/crossref_metadata_2025 huggingface dataset:
FEM for Brake Discs of SiC 3D Continuous Ceramic Reinforced 7075 Aluminum Alloy for CRH3 Trains Applying Emergency Braking
Authors: Yu Liang , Jiang Yan Li , Lu Sen Kai , Ru Hong Qiang , Fang Ming
Published: October 2011

The shaft disc prepared with SiC 3D continuous ceramic frame reinforced aluminum alloy 7075 (3D-SiC/Al) composite of the CRH3 high speed train with a speed at 250 km/h was chosen as the research object, and the course of emergency brake was simulated by Cosmos. A three dimension model was established, the way of applying loads were discussed, and the temperature field and thermal stress field were obtained. The result shows that the highest temperature appears at about 57 s since braking and the value is about 373 °C. The biggest stress is about 237 MPa, appearing at about 51 s since braking, the regions distribute at the surface corresponding with the radiating ribs, and near the inner diameter. The hoop stress is larger than other directions. The result shows that the thermal stress duce to the transient temperature distribution model is released well for the distribution of the 3D continuous ceramic frame reinforced aluminum alloy 7075 structure compares with the conventional brake disc, which can satisfy the requirement of the shaft disc of the high speed train with a speed at 250 km/h applying emergency braking.
A Novel Comparator Circuit of Single-Electron and MOS Transistors
Authors: Zhou You Jie , Xiong Chun Hua , Lu Chang Bo
Published: October 2011

A novel combination of single-electron transistors (SET) with MOS transistors is advanced to create inverter, which, compared with the pure SET circuit, is considerably augmented in its voltage gain and drive capability. Then a close analysis was conducted of the inverter, on the basis of which other logic gates were presented, thus achieving a circuit of two-bit digital comparator. The accuracy of the circuit is verified through the test on SPICE. This hybrid circuit shares the merits with both SET circuit and MOS circuit. Compared with the traditional circuits, this one uses fewer electronic components and is lower in power depletion.
Finite Element Analysis of Temperature and Stress Distributions on Touching Area of Freight Train Wheel
Authors: Liu Han Wu , Li Zhi Qiang , Du Yun Hui , Zhang Peng
Published: October 2011

With the development trend of constant speeding and heavy loading of the railway transportation, the freight train wheels which take the way of touching area breaking are in the bad conditions of strong friction, fever load and big wheel track forces. After many times’ repeated breaking, the wheels will come to be thermal fatigue, then, result in expired puncture. In this article, according to the actual work condition of the freight train wheel, its temperature and stress fields in the process of an urgently breaking when the wheel speed is 120 km/h with the 21 tons shaft weight were analyzed and simulated by Finite Element Method. The relationship between the injury occurring on the touching area of freight wheel and the fields of the temperature and stress was also studied. The research results showed that the maximum values of the temperature and thermal stress lied in the breaking process all locate in the touching friction area between the breaking and the wheel, and the temperature rises continuously with the breaking process going on. When the value of the temperature gets to the crest value, it slowly descends. The wheel temperature reduces from the touching area to the wheel shaft, and the nearer of the distance to wheel shaft, the lower of the temperature and stress values. After the end of the breaking process, the temperature into the wheel is higher than that on the touching area, and the maximum stress exists under the wheel touching area.
Research on the Unattended Control System of Coal Belt Conveyor
Authors: Wang Jian Guo
Published: October 2011

The paper pointed out that the current control system and the control link of the coal belt conveyor was too complex, proposed an unattended control system which adapted to modern enterprise management.
The Application Study on Virtual Lab InMicro-Control System of Experimental Teaching
Authors: Li Li Xin , Ding Dian Kuan , Li Jian Fa
Published: October 2011

With fast development and general application of Virtual experiment technology, it has already been a tendency to apply this technique in experimental teaching, and this has become a very great education reform. From the analysis of the virtual laboratory based on theory, this paper expounds the classification of virtual laboratory and discusses the significance of virtual lab in Micro-control System of Experimental Teaching, meanwhile, it explores the application of this technique in teaching.
A Visible Framework for Virtual Prototype of Electric Tools
Authors: Cui Jiang Wei , Gao Qiang , Li Jing , Chen Xiang , Wang Xiao Lei
Published: October 2011

This paper developed real-time virtual prototype analysis system of electric tools that consists of pre-processing module, solver module and post processing module. Adopting the OCC (OpenCASCADE) geometry engine, the functions such as parameterized modeling, virtual assembly and visible post process of the geared rotor system of electric tools were realized, simulation results of the virtual prototype analysis of the non-linear vibration is shown effectively.
A Study on Vacuum Diffusion Bonding of as-Extruded AZ31 Magnesium Alloy
Authors: Lin Fei , Li Tie Peng , Sun Lu Lu , Meng Qing Sen
Published: October 2011

In this investigation a study on vacuum diffusion bonding of as-extruded AZ31 magnesium alloys was carried out according to atomic diffusion theory. The bonding quality of the joints was checked by microstructure analysis, shear test and micro-hardness testing. The results showed that the diffusion temperature and holding time had a great effect on the the bonding quality of the joints. The maximum of joint shear strength was 76.2MPa with the bonding temperature being 420°C and the holding time reaching 90min.
The Integration and Extension of Digital Medium Design and Traditional Medium Design
Authors: Yu Feng Bo
Published: October 2011

Medium is a way to express idea and convey information. It’s the most important tool to spread information and exchange idea as well as conduct interpersonal communication in the human society. With the diversification of social culture and communicative content, the far-reaching development of media renders profound change to the ways of spreading information. Digital medium, as a new platform brought about by information digitalization, shares the same theoretical basis with traditional visual communication design with respect to design philosophy, and design elements. On the other hand digital medium shows distinctive aesthetic and formal feature in terms of modes of transmission and visual expression. This paper aims to discuss the design principle and theoretical basis of digital medium, to explore its relation with traditional visual communication design theory and thus to find out the theoretical evidence for the development of digital medium.
The Research on Autofocus System of Miniature Five-Coordinate Image Measuring Machine
Authors: Luo Gang , Chen Zhi Yuan , Fei Zhi Gen
Published: October 2011

In order to meet the high-precision measurement requirement of tested objects with tiny dimension and complex shape, a miniature five-coordinate image measuring machine, which contains three translational axes and two rotational axes , is designed and built. This machine can inspect the objects from multi-orientation and multi-posture in non-contact way. As an indispensable step of image measurement, the autofocus effect has a direct influence on the following image quality and measurement accuracy. In this paper, the composition and working principle of autofocus system are presented and discussed. Meanwhile, the path planning method for autofocus system is introduced and an autofocus method based on evaluation function of mean square deviation is proposed and discussed in detail. Finally, the experiments demonstrate the effectiveness of the method and the accuracy of autofocus system
Manufacturer-Retailer Collaboration for Production and Marketing Planning
Authors: Chen Liang Tu , Wu Tsui Ping
Published: October 2011

In this study, we propose the production and marketing planning of decentralized supply chain with capacitated constraint in a single-retailer Stackelberg and a single-manufacturer under VMI and consignment agreements. The study formulates the mathematics-based profit-maximization model and develops the solution procedures under collaborative and non-collaborative programs over a multi-period planning horizon. The analysis reveals that the benefit generated from collaborative program can significantly achieve channel-wide profit improvements.
Experimental Optimization of Deep Drawing Using Response Surface Methodology
Authors: Chu Tsu Hsiao , Fuh Kuang Hua , Yeh Wei Ching
Published: October 2011

A ultrasonic vibration system with ram motion of two steps is developed to optimize the formability for thin workpiece at the end of forming. The deep drawing force and forming height can be predicted in view of optimizing the values of the working variables involved in the process parameters. A response surface methodology (RSM) based on design of experiments was used in order to minimize the forming force and maximum the forming height during the deep drawing process. Associated plots are shown to be efficient for a quick choice of the optimum values of the forming process parameters.
Experimental Study of the Skewed-Roller Slipping Clutch under Grease Lubrication
Authors: Feng Ming , Lian Jun Wei , Li Yong
Published: October 2011

Under the condition of grease lubrication, the skewed-roller slipping clutch was experimentally studied. The experimental bench was built up and the influences of geometrical parameters and operation conditions on torque ripple and temperature rising were clarified by the experiment, which laid the foundation for practical application of the skewed-roller slipping clutch in grease lubrication.
Finite Element Analysis of Mechanical Characteristics on the Composite Rubber Suspension of Heavy Vehicle
Authors: Pang Hui , Li Hong Yan , Fang Zong De , Zhu Xiao Yuan
Published: October 2011

Taking the composite rubber suspension of a 6×4 heavy vehicle as research object, an accurate finite element model for the composite suspension at loading states is firstly built with consideration of nonlinear contact between spring leaves, and then a new finite element approach for calculating and analyzing static mechanical properties of the composite rubber suspension. Finally, the stress distribution and deformation is analyzed under different loads by using Hypermesh software and the results can be applied to its strength design. And moreover, some primary principles of the composite rubber suspension stiffness and displacement changing with different loads are obtained, which provides reference basis for virtual design and lightweight design of the vehicle composite rubber suspension.
PID Control for Magnetorheological Elastomer Absorber with Impact Load
Authors: Fu Jie , Yu Miao , Xing Zhi Wei
Published: October 2011

In this paper, a semi-active impact control system, which consists of a new Magnetorehological elastomer (MRE) absorber with variable stiffness, is proposed and its vibration control with impact load is investigated. An impact testing platform is established and mechanical property of fabricated MRE is tested. Based on Newton’s law the appropriate mathematical model of MRE absorber system is established. PID controller for MRE absorber system is designed to reduce the effect of impact load. Finally, the effectiveness of control strategy is verified by numerical simulation.
The Local Architectural Design Method of the Shuttle-Shaped Column in the Chaoshan Area
Authors: Li Zhe Yang
Published: October 2011

Based on the study of present theories of the shuttle-shaped column in Chinese traditional architecture as well as the research of traditional architectural craftsmanship in the Chaoshan area, the paper makes it clear that the shuttle-shaped column is shrunken at both ends and the shuttle-shaped column found in the Chaoshan area in South China represents a local design method of ancient Chinese traditional architecture. Through the analysis of examples and data, and also the interview with local architects, the paper explores the local design method of the shuttle-shaped column in the Chaoshan area.
Analysis and Control of Noise of Cavitation Generator by SEA Simulation
Authors: Yang Li Fang , Fu Yan Ping , Chen Wen Li
Published: October 2011

Structural noise radiation prediction is the base of structure acoustic design. In order to predict structural noise radiation level of cavitation generator, Statistical energy analysis (SEA) model of cavitation generator is simplified and established. Through a series of physical and environmental parameters setting and structure modification, the sound simulation analysis of cavitation generator is conducted by AutoSEA in order to find the optimum sound structure. The results show that, appropriate increasing in shell thickness, restructuring the cavitation generator and damp applying can effectively control the structure noise.
Equipment Development of Stopping Tank from Leaking for Organic Solvent at Emergency Case
Authors: Liu Gui Ling , Xia Xin , Yu Hong Kun
Published: October 2011

Based on the possible leak place on the tank of organic solvent, author had developed three equipments of stopping tank from leaking on the pipeline wall, breaking off between the pipelines or pipeline joint breaking off from tank wholly，which can be stopped tank from leaking as quickly, reliably, conveniently as possible. After simulation test of pressure, three equipments of stopping tank from leaking performed very well, and subjected to atmospheric pressure tank of organic solvent, as a result, these equipments can be used to deal with leaking for solvent tank at emergency case.
NC Machining and Simulation for Large Channel Head
Authors: Chen Tian , Yu Zhong Hai , Liu Di Shi , Wang Jing
Published: October 2011

As one of the key components of nuclear power equipment, large nuclear power head has a complicate shape, great allowance of processing and difficult to produce. There is no any successful experience for reference. In this paper, one type of nuclear power head is our research object. We mainly researched on the NC processing programming of large nuclear power head and implemented processing simulation by alternative applying variety of processing methods, including calculation and simulation of tool path, generation of pre-processing files, and development of post-processor based on specific milling processing center, and the generation of NC codes. Finally, through Vericut, the simulation software platform, simulation verification of NC codes was implemented. The results indicated that the processing scheme was reasonable, NC codes were right and there was no phenomenon of over-cutting and under-cutting happening.
Noise Characteristics Based on Genetic Algorithm Optimizations of Image Reconstruction
Authors: Yan He , Wang Xiu Feng
Published: October 2011

GA approach suitable for solving object Recognition problem is described and evaluated using a series of simple model problems. Usually GA calculation produces enormous amount of data that contains rich information, of which only a tiny section is commonly utilized runs through the design optimization. An application of Genetic Algorithm optimization with Noise characteristics would give many insights into how to allocate various image reconstruction options in different echelons, GA employing a global search might identify a better solution in an different area of the search space.
One Extended OTSU Flame Image Recognition Method Using RGBL and Stripe Segmentation
Authors: Yan Wei Gang , Wang Chang Jian , Guo Jin
Published: October 2011

This paper proposes a new image segmentation algorithm to detect the flame image from video in enclosed compartment. In order to avoid the contamination of soot and water vapor, this method first employs the cubic root of four color channels to transform a RGB image to a pseudo-gray one. Then the latter is divided into many small stripes (child images) and OTSU is employed to perform child image segmentation. Lastly, these processed child images are reconstructed into a whole image. A computer program using OpenCV library is developed and the new method is compared with other commonly used methods such as edge detection and normal Otsu’s method. It is found that the new method has better performance in flame image recognition accuracy and can be used to obtain flame shape from experiment video with much noise.
Research on Numerical Control Machining Simulation Based on Power Mill and VERICUT
Authors: Wang Chao , Han Lin Nan , Yao Yuan , Zhao Qian Sheng , Hu Qing Xi
Published: October 2011

To prevent the collision of tools and machine during the process of numerical control processing, reduce the number of cutting experiments and improve the production efficiency, it is a better way by using virtual simulation. This paper based on a mold cavity model of STL files, realized the numerical control programming based on Power Mill, researched the dynamic simulation process based on VERICUT, and at last verified the correctness and practicability of VERICUT simulation result by physical processing, which provided a reliable reference for physical machining.
Social-Security-System-Based Two-Way Referral Management Information System
Authors: Li Ying , Yi Xiao Jing , Geng Yu De
Published: October 2011

The two-way referral system comes into being in China with further development of community medical service. Based on investigation and survey of two-way referral system, the paper proposes the social security based two-way referral MIS, by way of the social security network linking the hospital and the community. Based on system feasibility, the paper makes functional structure overall design and function model design. The two-way referral MIS formulated in the paper can lower the two-way referral cost and help increase visiting rate and improve medical care in the community medical institution.
Study of Classification and Modeling of Virtual Resources in Cloud Manufacturing
Authors: Hu Chun Sheng , Xu Cheng Dong , Cao Xiao Bo , Fu Ju Chuan
Published: October 2011

Based on the concept of Cloud Computing, Cloud Manufacturing which refers to a new networked manufacturing mode is proposed by LI Bo-hu. In this new mode, virtual resources are organized to meet the requirements of various manufacturing services for users over network and Cloud Manufacturing platform. This paper focuses on the virtualization of resources and analyses the factors which affect the classification of virtual resources in Cloud Manufacturing first, and a conceptual classification is given. Then some factors affect the result of task assignment are introduced, and a simple example shows the effect of these factors to task assignment. Based on these factors which include quantitative, human activity, logistics and granularity, a modeling process and a rough model of virtual resource are built.
The Modeling and Prediction Study of BLP Device Solder Joint Three-Dimensional Shape
Authors: Wu Zhao Hua
Published: October 2011

Solder joint shape refers to geometry that molten solder can be achieved with spreading and wetting along the metal surface in the junction between components solder pins and printed circuit board (PCB) pad, to the metal surface contact angle and solder fillet shape[1]. BLP (Bottom Leaded Plastic) [2] which is not a type of thin out-line surface mount device(SMD) without the side lead is widely used in manufacturing of new generation memory such as SDRAM \ RDRAM \ DDR. For this non-lead SMD, the shape and reliability of solder joint is the focus of the study. In this paper, we select the C-BLP of 28-pin device as the research object, complete the forming model of solder joint shape based on minimum energy principle and the solder joint shape theory by using Surface Evolver software, and analyze two critical process parameters (solder volume and solder pad width ) impacting on the solder joint shape. The study results show that the solder volume and pad width have a significant impact on the three-dimensional shape of BLP solder joint. The law of which is that: in the case of the other fixed parameters, as the increase of the solder volume, solder joint surface gradually changes from the relatively flat to the convex, solder joint gradually changes from the completely soldered to the partly soldered in the pad connections, and solder joint heights are gradually decreased; in the case of the other fixed parameters, as the increase of the pad in width, the solder joint surface gradually changes from the convex to the flat, solder joint gradually changes from the completely soldered to the partly soldered in the pad connections, and solder joint heights are gradually decreased. The actual solder joint shape designs of BLP devices can be instructed based on predicted results.
Analysis and Optimization of Hot Air Drying Device of a Gravure Printing Machine Based on Fluid Analysis
Authors: Liu Lin Lin , Liu Jian , Zhang Xiao Yan , Zheng Shan Shan
Published: October 2011

in this paper, analysis of the fluid dynamics was carried out on hot air in drying mechanism of a gravure printing machine by applying the fluid dynamics and aerodynamics theories. The kinematical equation and the kinetic equation were established respectively and the RNG model was added according to flowing conditions of hot air. The CFD analysis model was established by adopting the computational fluid dynamics (CFD) method to implement dynamic simulation analysis on air hot in the drying mechanism. Uniformity of drying was improved through adding clapboard and a flow guide plate to optimize the structure of air nozzles, so that the hot air convolutes for multi times on substrate and the utilization efficiency was increased.
Electrocatalysis Oxidation of Ammonia at PtPdRh Ternary Catalysts in an Acid Medium and Applied Fuel Cell Studies
Authors: Hung Chang Mao
Published: October 2011

This work describes the platinum-group metal electrocatalytic materials were synthesized by incipient wetness impregnation process combine with aqueous solutions of H2PtCl6, Pd(NO3)3 and Rh(NO3)3 that were coated on alumina substances employed as a model reaction test by ammonia (NH3) electrocatalysis oxidation (ECO) research for fuel cell applications. The electrocatalytic materials were characterized by dynamic light-scattering (DLS), with a particle size around nanoscale particle sizes with high dispersion phenomena. Further, ECO ability was determined by using cyclic voltammetry (CV) and linear sweep voltammograms (LSV) technique. The experimental results show that the significant reactivity of the PtPdRh ternary electrocatalysts in acid medium and the results also demonstrated that the potential and the current density of the main oxidation-reduction peak change for the PtPdRh ternary electrocatalyst.
Cultivating Succeeding Crops in Transgenic Soybean Overexpressing TaDREB3 Planted Field Had No Impact on Crop Yield and Quality
Authors: Zhang Bin Bin , Zhang Tong , Wu Xiao Xia , Ding Wei , Li Wen Bin
Published: October 2011

The effects of planting transgenic soybean on the yield, quality and other agronomic traits were determined. No marked differences on yield were found between the succeeding crops planted on field where transgenic soybean were planted in the previously year and those planted on field where non-transgenic control soybean were planted in the last year. In parallel with this similarity, dry mass accumulation of wheat and maize showed no differences for those crops growing on the two different fields. The height, spike length and the gluten content of wheat planted on the two different fields were also investigated and no difference was found. In addition, the sugar content of beet was not affected by planting them on field where transgenic soybean was previously planted.
Design and Implementation on a Novel of Solar Double-Direction Tracking-Device
Authors: Li Ming Bin , Yin Dong Wen , Mu Song
Published: October 2011

The development of solar energy tracking technology has important practical significance for promoting solar energy application. In the paper, double-direction tracking-device was designed based on the theory of calendar check tracking and worm gear mechanism, gear transmission mechanism, cam push-rod mechanism was used to achieve the function of “single driving, double-direction tracking” . So, the function of tracking solar azimuth and solar altitude angles was cleverly realized through controlling a single power. In the paper, design and manufacture of the device were completed by Solidworks software. Through the debugging experiment, the device’s advantages were proved of low energy consumption, high reliability, strong anti-interference ability, easy maintenance and suitable for a variety of small solar installations.
Designing a Negative Air Ions Distribution Pattern for Human Health in a House Garden by Using Geostatistical Approach and a Negative Air Ion Generates Experiment
Authors: Wu Chen Fa , Lin Wen Huang
Published: October 2011

The purpose of this research is to design a negative air ions (NAI) distribution for a house garden in enhancing human health. This study presented an effective approach in integrating air ion monitoring, variograms, Kriging and sprinkler experiment, based on a case study in central Taiwan. Twelve months monitoring of the air ion at thirty sample sites is an effective method for generating spatial and temporal NAI concentrations in the study areas. The measurement results showed that the lowest mean and standard deviation of NAI occurred in January. The highest mean and standard deviation value of NAI occurred in July and June. Factors that impact NAI concentration include types of NAI source, landscape layout, distances to NAI source. The ability of waterfall to generate NAI is larger than sprinkler. The area close to waterfall and far to sprinkler is high NAI concentration. Kriging estimation is useful in evaluating and mapping of spatial negative air ions patterns in a house garden. The maps showed the highest NAI next to the waterfall and lower NAI are the areas next to the entrance of the garden and residence. An experiment found that sprinkler has high ability to generate NAI through the Lenard effect. According to the map which sums up the twelve months NAI concentration, the study garden should set up three sprinklers to increase 5.28 times more NAI concentration, increases 7.56 times of mean NAI when there was any sprinkler. This study provides a hybrid approach to assess and mapping the patterns of negative air ions for future garden design with health concept.
Experimental Study on Strength Characteristics of Cement-Soil under CD/CU Condition
Authors: Song Xin Jiang , Li Jing , Qian Cai Fu
Published: October 2011

General triaxial CD and CU tests are conducted to properly understand mechanical property of cement-soil. Experiment data indicate that: (a) different stress paths have some but little influence on the strength of cement-soil; (b) under low confining pressure, cement-soil is similar to highly overconsolidated soil with shear dilatancy property; but under high confining pressure, it is similar to slightly overconsolidated soil; (c) its residual strength increases linearly with the increase of confining pressure, and the residual strength of CD test is greater than that of the CU test; (d) the ratio of residual strength to peak strength increases with the increase of confining pressure, while its increasing rate decreases; (e) the effective stress envelope of CU test and that of CD test are basically identical.
Optimization of Ultrasonic Plastic Welding Horns on Amplitude Uniformity
Authors: Hung Jung Chung , Tsai Yen Pin , Hung Ching Hua
Published: October 2011

This research integrated finite element analysis (FEA) and optimum design to obtain a fast, accurate and automatic optimization system for the design of an ultrasonic horn. The optimization system was developed to achieve uniform amplitude distribution on the output surface of a block shaped horn for the ultrasonic plastic welding. Agreement between the experimental and numerical data proved that this optimization system was efficient in the design of ultrasonic horns.
Preparation and Properties of Environmental Friendly Wood Adhesives Based on Wild Acorn Starch
Authors: Zhou Lu Lu , Han Chun Rui , Zhang Shi Feng , Gao Qiang , Li Hong Yan , Li Jian Zhang
Published: October 2011

A friendly environmental wood adhesive was prepared using wild acorn starch as a raw material. The physical properties of wild acorn starch were investigated by scanning electron microscope (SEM) and brookfield viscometer. The polyvinyl acetate emulsion and isocyanate were employed to prepared modified wild acorn starch adhesives. The plywoods were prepared using the adhesives and their bonding strength was measured. The experimental results showed that 1) the wild corn starch was adaptive for preparing adhesive; 2)the optimum preparing conditions of the modified wild acorn starch adhesive were as follows: the mass ratio of acorn starch/water/modifing agent was 8/9/3, the addition amount of viscosity reducer was 0.6%, the mass proportion of polyvinyl acetate emulsion/starch adhesive was 1/1, the addition amount of isocyanate was 15% weight of starch adhesive. The plywood using the adhesive prepared at the optimum condition was 0.9 MPa, could meet the type ⅡChinese Strandard plywood requirement.
Study and Practice on the Technology of Filling Mining in Xin Wen Mining Area
Authors: Gao Ming Tao , Zhang Ming , Zhou Ming
Published: October 2011

Because of mine production, the open-pit enission of coal gangue solid waste and surface subsidence are one of important causes to failure the mining area land and environment, so the key technology, processes and equipment of filling mining to replace coal have been developed, which convergences the existing system of mining technology, And the stability theory of the control of filling mining rock movement and the method of surface subsidence prediction have been established, which provides a scientific basis for equipment Selection and the design of subsidence control; the key technologies of filling mining to replace coal is successfully applicated, which significantly improves the recovery rate of coal resources in China and constructs the new coordinated development model that is combined by the underground disposal of coal waste, mining subsidence control and the “under three”safe coal mining, through the above, the target of green mining and the coordinated development of mining social, economic and environmental will be achieved.
Study on Waste Concrete as Reclaimed Fine Aggregate
Authors: Huang Shuang Jie , Zhou Ling , Zhou Jun Long , Ge Zeng Chao
Published: October 2011

This paper compares the properties of concrete made by reclaimed fine aggregate with those made by other fine aggregate. Although the properties of reclaimed fine aggregate and other kinds of fine aggregate are different, especially the strength of reclaimed fine aggregate is lower than that of manufactured sand. It is concluded that the fluidity, the strength and the elastic modulus of concrete made by reclaimed fine aggregate are almost similar to those made by other fine aggregate. When it comes to the making of concrete, reclaimed fine aggregate can serve as a substitute for other aggregate. Moreover, it can enhance resources utilization and reduce environmental pollution.
The Solid Barrier Explosion Device of the Gas Recoil Type of the Extracting Coal Face of the Coal Mine
Authors: Wei Chun Rong , Xu Min Qiang , Sun Jian Hua , Zhang Xian Wei
Published: October 2011

Aiming at the limitation of the roadway-type barrier explosion device which is being used in the coal mine, this paper suggests to establish the gas recoil type barrier explosion device. Using the mechanism of the gas recoil type, it made the structure design of the solid barrier explosion device of the circle-arch roadway. The device has the better effect on the elimination of the damage and the influence of the high-temperature flame of the gas and coal dust explosion and the overpressure damage of the shock wave. Especially, it can have a more realistic function for the secondary explosion or multiple explosions of the underground gas explosion.
Analysis on Regional Adaptability of Interior Thermal Insulation System in South China
Authors: Ren Peng , Li Qiong , Meng Qing Lin , Wu Gui Ning , Lian Wei Jie
Published: October 2011

For seeking out suitable means of thermal insulation system of building envelope in south China, this paper has conducted simulation analysis on respective energy consumption of the typical residential template in cold region and south China, when adopt exterior thermal insulation system or interior thermal insulation system. The study has shown that the exterior thermal insulation system is much better than the interior thermal insulation system in energy efficiency in the cold region, but there isn’t obvious difference between them in south China. And from the aspects of the climate’s influence on the insulation quality, the installation’s influence on the building facades and the construction practices, it is proved that the interior thermal insulation system is more suitable than the exterior thermal insulation system in south China.
Analysis on Energy-Flow of a Bipropellant-Powered Hydraulic Free Piston Engine
Authors: Xia Bi Zhong , Su Gang , Xie Hai Bo , Yang Hua Yong
Published: October 2011

Bipropellant-powered hydraulic free piston engine (BHFPE), as a new type of HFPE, takes advantage of bipropellant in place of conventional fossil fuel, and adopts a catalytic ignition instead of the conventional spark or compression ignition. In this paper, the operational principle and working process of a BHFPE are described firstly, then the chemical formula and molar mass as well as the heating value of the bipropellant i.e. kerosene/HTP combination are dealt with respectively. Thereafter analysis on the internal energy-flow i.e. energy input, transfer, dissipation and output, during a working cycle of the BHFPE are analyzed. Additionally the operating parameters such as working efficiency, maximum speed of the free piston assembly (FPA) and the output hydraulic energy are derived.
Analysis of Elastohydrodynamic Lubrication of Ball Screw with Rotating Nut
Authors: Mu Shi Gang , Feng Xian Ying
Published: October 2011

The isothermal elliptical contact elastohydrodynamic lubrication (EHL) problem in ball screw with rotating nut was studied.Numerical solution to the problem was obtained for various parameters with a multigrid solver.Based on work mentioned above,the influence of the working parameters such as the rotating speed of screw shaft and the contact force,on the lubricant oil film thickness and pressure is analyzed .The results showed that, with the increasing loads,the pressure became higher,the film thickness became smaller. On the other hand,when the angular velocity was higher,the film thickness was higher, while the pressure spike was closer to the center of the contact. Because of the spinning, the slide-roll ratio was not a constant.
Comparative Study of Comprehensive Performance on Typical Die Structures in Knuckle Hot Forging
Authors: Li Lu , Wang Fang
Published: October 2011

In order to improve the severe service conditions and balance the needs between the better filling capacity and longer die life, a new flash structure named by resistance wall was introduced into knuckle hot extrusion dies. Focusing on filling capacity, the maximum deformation load and the highest die surface-layer temperature, different die structures, such as flash slot structure, traditional closed die structure and resistance wall structure, were comparatively analyzed by FEM simulation. It is shown that the resistance wall structure can be extensively used in many applications thanks to its comprehensive performance.
Reaction Mechanism of Dye with Atomic Hydrogen on Au Cathode Plated Nanostructured Pd Film
Authors: Huang Li Hui , Sun Guo Peng , Ma Hou Yi , Yang Tao
Published: October 2011

The Au electrode plated nanostructure Pd was used to study the reaction mechanism of C.I. reactive blue 19 and reactive brilliant blue K-GR with atomic hydrogen in 0.2M H2SO4 solution by the electrochemical method. The nanostructured Pd/Au electrode showed the various forms of hydrogen. Through the result of cyclic voltammetry, Tafel curve and EIS, the protonation of dye molecule could accelerate the production of atomic hydrogen and the adsorption of dye on Pd/Au electrode. The decolorization efficiency using potentiostatic polarization at -0.18V was highest than that at other polarization potential because the proportion between adsorbed dye and adsorbed atomic hydrogen on electode was optimum.
Dynamic Analysis of Hydraulic Roll Bending System for Asymmetric Loading
Authors: Yan Xing Chun , Liu Zhi Fang , Wang Yong Qin , Luo Yuan Xin
Published: October 2011

To increase quality of the final product, high-precision rolling mills have been used in the modern steel making industry. Hydraulic bending system is widely used to improve the precise of the rolled plate products. In this paper, the dynamics model of hydraulic bending system for asymmetric load is built, and the simulation method is proposed accordingly. The simulation is realized in MATLAB/Simulink. Then an illustrative example is given for demonstrative of the model. Also, the effects of the design parameters are analyzed and some nonlinear factors, such as, flow characteristic, load damping of servo valves, are considered in this simulation. It’s believed that this research will help to analysis and optimize the design of roll bending system
Generic Technology of Home Service Robot
Authors: Yu Zhong Hai
Published: October 2011

The paper briefly looks back on current research situation of home service robots. It takes a home nursing robot as example to study and discuss some key generic technologies of home service robots. It generally overviewed robot’s mobile platform technology, modular design, reconfigurable robot technique, motion control, sensor technologies, indoor robot’s navigation and localization technology indoor, intelligentization, and robot’s technology standardization. Some the measures of technology standardization of home service robots have been put forward. It has realistic signification for industrialization of home service robots.
The Strategy Research and Application of Product Function Innovation
Authors: Yin Feng , Li Wen Qiang , Li Yan
Published: October 2011

The objective of product design is to meet some function demand of people and the goal of product innovation is to realize product function innovation. Based on this, the paper proposes a new mode of product function decomposition and a strategy method system facing product function innovation, which contains function conflict solved strategy, function relation established strategy, function removed strategy, function replaced strategy and potential-function inspired strategy. The six strategies can assist designers in product function innovation effectively based on analyzing the interrelationship between each sub-function of the product. Finally, a concrete example of the agricultural miniature rototiller is demonstrated the usage of the six strategies, which illustrates the effectiveness of these innovation strategies.
Research on Sealing Equipment for Ceramic Metal Halide Arc Tubes
Authors: He Rong Kai , Wang Hai Ou , Chen Gang , Zhang Jian
Published: October 2011

In this paper, several types of sealing ceramic arc tube furnace and layout design of super purified glove box were introduced. The methods of injection of mercury and metal halide, electrode assembly and gas injection were put forward.
Remanufacture of Die Casting Dies
Authors: Chen Chang Rong , Wang Yan , Ou Heng An , Gindy Nabil
Published: October 2011

Die casting dies are essential parts for die casting engineered metal products and usually fail due to a variety of reasons. The objective of this paper is to investigate the potential benefits and possibility of remanufacturing die casting dies. Firstly, with respect to the entire life cycle, a technical framework for die remanufacture is presented. And then based on the failure modes of die casting dies, life extending technologies covering the whole life cycle are reviewed according to the different stages: Pre-failure stage and Post-failure stage. While measurements within the Pre-failure stage are shortly and briefly surveyed, extensive effort is made to survey the recondition technologies-welding technologies which could be the only measure to put worn/failed dies into operation. The most commonly utilized welding technologies are Tungsten Inert Gas (TIG) Welding, Plasma Arc Welding (PAW) and Laser Beam Welding (LBW), and other types of welding techniques including Electro Spark Process and Cold Spray are also applied for repairing die casting dies. Lastly, research gaps and industrial challenges indicate that more research attention is required to finally commercialize the remanufacture of die casting dies.
A Novel Method Based on Clustering Algorithm and SVM for Anomaly Intrusion Detection of Wireless Sensor Networks
Authors: Xiao Zheng Hong , Chen Zhi Gang , Deng Xiao Heng
Published: October 2011

Based on the principle that the same class is adjacent, an anomaly intrusion detection method based on K-means and Support Vector Machine (SVM) is presented. In order to overcome the disadvantage that k-means algorithm requires initializing parameters, this paper proposes an improved K-means algorithm with a strategy of adjustable parameters. According to the location of wireless sensor networks (WSN), we can obtain clustering results by applying improved K-means algorithm to WSN, and then SVM algorithm is applied to different clusters for anomaly intrusion detection. Simulation results show that the proposed method can detect abnormal behaviors efficiently and has high detection rate and low false positive rate than the current typical intrusion detection schemes of WSN.
Application of GX Simulator Software in PLC Program Development
Authors: Zhao Xue Mei
Published: October 2011

Simulation software is used to PLC program development,Engineering and technical personnel can get rid of the shackles of PLC hardware conditions,They can be flexible and independent to design and debug program. Sequential function chart (SFC) is a programming method of efficient and simple in PLC program development,For complex procedures,The efficiency is very high,This paper introduces PLC program development and simulation with sequential function chart and simulation software,This method can greatly improve efficiency.
Real-Time Information Capturing and Integration Framework of the Internet of Manufacturing Things
Authors: Zhang Ying Feng , Wang Jun Qiang , Sun Shu Dong
Published: October 2011

Recent developments in wireless sensors, communication and information network technologies have created a new era of the internet of things (IoT). To achieve the real-time data capturing from shop-floor front lines and the seamless dual-way connectivity and interoperability among enterprise layer, workshop floor layer and machine layer, a framework of the internet of manufacturing things (IoMT) is presented, which provides a new paradigm by extending the IoT to manufacturing field. Under this IoMT framework, the key enabling technologies such as configuration of sensor networks, sensing and capturing of manufacturing data, data processing and applications services etc. are designed and analyzed. The proposed IoMT framework and its key technologies will facilitate the real-time information driven optimum control and the operation efficiency during manufacturing execution process management.
Research on Premium-Penalty Ant Colony Algorithm with Fashion Factor
Authors: Wang Xin
Published: October 2011

With analyzing the features and factors of clothing distribution Vehicle Routing Problem(VRP), VRP mathematics model of clothing fashion is built.In order to solve the mathematics model reasonably,the premium-penalty ant colony algorithm(PPACA) is proposed.In the new algorithm,the function relationship of PPACA between pheromone factor and clothing fashion factor is researched.The better solutions ,which are found by ants ,based on the new function,are rewarded while the ordinary are punished.In order to counteract the polarization of pheromone values on all roads, the pheromone values of trails are limited to an interval [τmin，τmax] and volatile coefficient is set to a higher value.The results of experiment show the PPACA with fashion factor is better than the ACA without fashion factor to solve VRP mathematics model of fashion clothing.
Research on Simulation Techniques of Space Information Confrontation Based on Agent and HLA
Authors: Wang Wei Kui , Zhang Xin Hui , Yang Shi Liang , Liu Yun
Published: October 2011

This paper analyzes the shortcomings of the present applications of the space information confrontation simulation technology in the light of the development trend of the technology and points out establishing simulation platforms based on the HLA and Agent technologies is an effective method to carry out the demonstration and effect evaluation of space information confrontation systems. this paper also proposes an information confrontation Agent modeling framework and an architecture of space information confrontation simulation systems and describes several key technologies needing to be noted in the simulation based on the Agent and HLA technologies.
Reverse Path Planning for Flexible Needle in 2D Soft Tissue with Obstacles
Authors: Zhao Yan Jiang , Zhang Yong De , Tu Fei
Published: October 2011

In clinic it is of very practical significance to optimize the entry point and pose in path planning. We proposed a reverse path planning algorithm adopting multiform combined paths based on the improved kinematic model of flexible needle, and the objective function is established. Utilizing the reversibility of the path, we started from the target to optimize the whole path including the entry point and pose. Then we optimally calculated and simulated in the environment with obstacles. Results show that this algorithm effectively makes the needle steer clear of obstacles to reach the target precisely, and gains the entry point and pose at the same time, guaranteeing the optimal path.
Spectral Feature Matching Based on Isometric Projection of Matrix
Authors: Zhang Zhao Yang , Tian Zheng , Yan Wei Dong
Published: October 2011

This paper presents a spectral method to matching a pair of feature sets based on isometric projection of matrix. In the proposed method, a graph is constructed to model the structure relationships between features. Then the correspondence is found by minimizing the inner product between two isometric projections of the weighted adjacency matrix of graph. Finally, transformation between the two feature sets is estimated according to correct correspondences. The performance of the proposed approach is better than the state-of-the-art method in terms of correct ratio under position perturbation and computation time. Experiments on a number of simulated data, synthetic and real-world images show the validity of the proposed algorithm.
The Component Importance of Complex System Based on Bernoulli State Variables
Authors: Fei Si Miao , Zhao Yu , Huo Lin
Published: October 2011

Complicated structure of complex system makes it difficult to analyze and evaluate its reliability. Here we propose a method to calculate the importance of complex system components using a technique of Bernoulli State Variables (BSV). The models of three reliability importance, which describe the importance of each component, are proposed. Our studies show the method is suitable for complex artificial systems, and we proved the method can be used for maintenance decision and failure diagnosis though an example.