bluuebunny/crossref_metadata_2025 huggingface dataset:
The Linear Sweep Voltammetric Study and Two-Step Electrodeposition of CuIn 0.95 Se2.1Thin Film in a Citric Acid Electrolyte
Authors: Xiong Wei , Hu Fei , Fang Hua Bing , Hu Yue Hui
Published: February 2012

Electrodeposition of CuInSe2 (CIS) thin films has been investigated by linear sweep voltammetry on F-doped tin oxide (FTO) glass in electrolytes containing citric acid. It is found that one-step electrodeposited CIS thin films have great deviation from the ideal stoichiometric ratio. After deposited a film at -900 mV (vs.SCE) for 20s on the FTO, the linear sweep voltammetry has showed that only one reduction current peak at -550 mV is remained, and the two-step electrodeposited CIS film showed a near- toichiometric ratio of 1:0.9:2.1.
Study on Properties of High Strength Steel during Warm Roll Forming
Authors: Yan Pei Jie , Han Jing Tao , Jiang Zheng Yi , Li Hei Jie , Li Dan Yang
Published: February 2012

Roll forming is a 3D deformation complex process. Stiffness of stands and strength of shafts are the preconditions for the production of precision products. However, the existing roll forming equipment cannot meet the requirements of the production for high strength steel or ultra high strength steel. In order to solve the forming problem of high strength steel or ultra high strength steel, it needs to redesign a set of roll forming equipment. The redesign of roll forming equipment not only makes the production cycle too long, but also results in a high cost. So it is not suitable for the production of forming products. In this paper, based on the existing roll forming equipment a new method of roll forming operation is proposed to optimize the production of U shaped products. The influences of the new method on the roll forming products such as mechanical properties, microstructures and surface qualities, have also been discussed, Based on the new warm roll forming operation, numerical simulation has also been carried out. The simulation result of geometry is in good agreement with experimental result.
The Research about EDTA Plating Solutions of Non-Cyanide Copper Plating
Authors: Fu Ren Chun , Guo Zhong Cheng , Zhou Wei Min , Chen Zhen
Published: February 2012

Six formulae of plating solution were studyed in the experiment. The first formula was cyanide plating solutions. The others formulae based on the EDTA as primary complexing agent, C6H5O7K3•H2O and KNaC4H4O6•4H2O as auxiliary complexing agent. Bath quality of the six formulae were examined and Compared. The results show that the EDTA system improve the ability of throwing power, covering power, current efficiency and reduce the bath voltage. In some ways, the performance of EDTA system were better than cyanide plating solutions, such as the deep plating ability, dispersing power, cathodic current efficiency.
The Traditional Dyes and Design Types of Uyghur Traditional Decorative Felt
Authors: Saitaer Xiakeer
Published: February 2012

The ancient Uyghur people before entering the Tarim culture, that has not yet learned to grow cotton before, put the felt used to make houses, coat of important raw materials. As the title of felting Uyghur handicraft industry is a historical necessity, is indispensable for industrial and bedding material, Uygur ancestors felting skills to further develop, felt is not only common household items, and become aesthetic value of art, and also become a valuable asset of Uyghur people. Felt products with decorative designs are the most precious of the felt products. This paper discusses in detail the dye of traditional Uyghur decorative felt, the types of traditional Uyghur decorative felt designs, and sets forth reasons for its preservation.
The Study of Wireless Measurement System for Neuro-Motor Reaction Time
Authors: Li Shu Gang , Zhu Zhi Wu , Shen Fei
Published: February 2012

The purpose of this study was to introduce the design and realization about a measurement system, which is based by accelerometer ADXLl05 and wireless data-transmission module for starting line of athlete’s reaction time. This system plotted curves of players’ reaction time using 89C205l as the core of the front-end of the system reaction time measurement device, the measurement device take real-time captures players' reaction time, and then sent over the wireless data-transmission module player reaction time to the PC machine to display, and to record the reaction time.
Research on Three Dimensional Design of Cavity of Injection Molds of Involute Plastic Gears
Authors: Luo Guang Si
Published: February 2012

The crux to the 3D design of cavity of injection molds for involute plastic gears is to solve the difficulty in zooming the cavity of molds and the accurate molding of the involute tooth profile. Researches have shown that the shrinkage of involute tooth profile is non-linear during the injection molding process of plastic gears. This paper presents the 3D design of cavity of injection molds for involute gears based on SolidWorks after offering an introduction to the relationship between the cavity tooth profile of injection molds for small-modulus plastic gears and the tooth profile of injection molding part.
Synthesis on Modified Chloroprene Rubber Adhesive Dedicated to Bonding UHMWPE and 45# Steel
Authors: Luo Qin Qin , Hu Ping , Zhang Ting Yue , Xiong Xian Jiang
Published: February 2012

Methyl methacrylaten (MMA) was used to solution graft onto and modify chloroprene rubber (CR) to improve its adhesive strength. And chlorinated polyethylene (CPE) and magnesium oxide (MgO) were added to the optimum formula system of CR/MMA adhesive to prepare a better adhesive effect of CR/MMA/CPE /MgO adhesive dedicated to bonding UHMWPE and 45# steel. The performance of adhesive film was analyzed by Infrared spectroscope (IR), X-ray diffraction (XRD) and Comprehensive thermal analysis (TG-DTG). The results show that CR being grafted and modified by MMA and adding CPE and MgO in the optimum formula of CR-MMA adhesive can improve itself bonding effect of glue solution and the wetting effect of glue solution onto bonding interface, and all helped to improve bonding strength. Adding 18% of CPE and 8% of MgO (in relation to CR) in the optimum formula of CR-MMA which bonding strength is up to 0.8013MPa could make the prepared composite adhesive’ s bonding strength reach 1.2048MPa and heat resistance temperature be up to about 200°C.
Properties of Electrospark Deposited Cr Coatings on AISI H13 Steel
Authors: Guo Cean , Zhang Jian , Yang Li , Zhou Wei , Sun Hong Hui
Published: February 2012

Cr coatings were deposited on AISI H13 steel substrates by means of electrospark deposition (ESD). The coatings were characterized in terms of their microstructure, hardness, friction and wear behavior and high-temperature oxidation resistance. Micro-indentation and tribometer testers were employed to measure the mechanical properties of Cr coatings and AISI H13 steel. The results showed that the hardness of the coatings ranged from 600 to 660 HV, with a higher value than that of AISI H13 steel (510 HV). The coefficient of steady-state friction of the coatings against 45-carbon-steel balls ranged from 0.23 to 0.27, with a lower value than that of AISI H13 steel (0.62-0.68). The isothermal oxidation behavior of the coatings at 850°Cwas studied in comparison with AISI H13 steel substrates. The results indicated that Cr coatings substantially increase the high-temperature oxidation resistance of AISI H13 steel and the oxidation process was retarded mainly by the presence of a Cr2O3 oxide scale on the coatings at 850°C for 100 hours.
The Organization and Microhardness of the Coating of Aluminum Alloy after FSP
Authors: Zhou Xiao Ping , Zhou Xin , Li Ming
Published: February 2012

The principle of the friction stir processed (FSP) was studied in this paper. When the rotate-speed of the mixing head is 3000r/min, as feed speed of the mixing head is 15μm / s and cutting output is 0.1mm,an influence area constituted with Fe-Al intermetallic compounds was produced between the coating of high-speed steel and Al substrate because of dynamic recovery and recrystallization.The Fe-Al intermetallic compounds can improve microhardness as hard strengthening phase.and the highest microhardness of the influence area achieved 600 HV.
Study on Ni-P-Nanometer Diamond Composite Electroless Plating for 2A12 Aluminum Alloy
Authors: Cai Gang Yi , Yan Bing Yi , Shi Xue Feng
Published: February 2012

On the basis of electroless Ni-P plating, the technique of electroless Ni-P-nanometer diamond composite plating for 2A12 aluminum alloy was studied. The table of L9 (34) of orthogonal design was adopted in the experiment. The optimal formulation of plating bath for 2A12 aluminum alloy was determined. The effect of bath composition on deposition rate and adhesion strength was studied. The results show that the order of marked factors on deposition rate from large to small is nanometer diamond, sodium acetate, nickel sulfate hexahydrate and sodium hypophosphite in turn, while for adhesion strength is nanometer diamond, sodium acetate, sodium hypophosphite and nickel sulfate hexahydrate. The optimal plating formulation are consisted of nanometer diamond (2g/L), NiSO4•6H2O (30g/L), NaH2PO2•H2O (30g/L) and CH3COONa (15g/L), which is operated at 80~85°C, pH (4.5). The microstructure of coating plated with optimal process is cellular structure, which is homogeneous, compact and good brightness, and its deposition rate is 17.0μm/h.
Research on Error Sources Caused by Servo Feed in Cam Grinding
Authors: Li Qi Guang , Han Qiu Shi , Mu Dong Hui , Peng Bao Ying , Jia Guan Wei
Published: February 2012

With the development of auto industry, the cam quality requirements higher and higher. In order to illustrate the effect of servo lag upon cam Contour error, X-C servo axis Trajectory coordinates have been acquired in real-time with dual-channel mode during cam grinding. By comparing the Trajectory coordinates detected and the interpolation contour, the errors caused by servo feed lags were verified, and the mechanism that how axis feed acceleration impact on cam Contour errors was proposed. Based on data acquisition and product test, the error compensation method based on servo lag is proved reasonable.
Study on New Technology of Removing Abandoned Tobacco Zinc Plate Coating by Using Mechanical Method
Authors: Zou Li Zhen , Wang En Ze , Zhang Zheng Quan , Wang Li Ge , Zhou Yong Sheng , Cai Shao Wu , Yue Xiaoan
Published: February 2012

The traditional method to remove zinc coating from matrix has some problems, such as complicated process, expensive cost, and environmental pollution problems. In our article, mechanical method is proposed to remove zinc from galvanized sheet. Using this method, In the paper, the galvanized sheet can reused by an easy and low-cost method. The paper mainly introduces the technological process, best choice of abrasive material and analysis of the results. Under laboratory conditions, this study has achieved some achievements, which has some guiding significance for removing abandoned tobacco zinc coating in future practical production.
Study on Dynamic Strain Aging Phenomenon of AZ91D Magnesium Alloy
Authors: Lin Na , Yang Kai Huai , Zeng Shao Feng , Chen Wen Zhe
Published: February 2012

Tensile experiment of AZ91D magnesium alloy was carried out and serrated flow was apparent throughout the deformation history. Dynamic strain aging (DSA) occurs when the AZ91D magnesium alloy treated by solid solution treatment has been deformed at a set range of strain rates (1.11×10-4 s-1 to1.67×10-3 s-1) and a certain range temperatures (248 K to 423 K). The critical plastic strain εc was observed to increase with increasing strain rates but decrease with increasing temperature. The diffusing activation energy of solute atoms during the DSA occurring in AZ91D magnesium alloy is 140.8 kJ/mol by calculating, which is correspondence match with the diffusing activation energy of Al solute atoms in Mg matrix. Therefore, the micro-mechanism of DSA in the alloy is believed that the Al atoms in solid solution gather around dislocations to form Cottrell solute atmospheres by vacant diffusion and then pin the moving dislocations.
Microstructure Analysis of TiC Reinforced Fe-Based Composite Coating by Plasma Cladding
Authors: Lu Jin Bin , Meng Pu , Tang Feng , Gong Jin Xia , Zhao Bin
Published: February 2012

TiC reinforced Fe-based composite coating with 10% and 20% TiC particle were prepared on the surface of substrate Q235 steel by plasma cladding, respectively. The microstructure and formation mechanism of cladding layer were carefully investigated by SEM, EDS and XRD. The results show that metallurgical combination is achieved between coating and substrate, the microstructure of composite coating is composed of dendrite α-Fe, interdendritic eutectic structure (α-Fe, Cr23C6 and CrB) and added TiC particles, and microstructure refinement with the increase of TiC particles content. TiC particles react with Fe-based alloy and part of TiC particles dissolve into coating. The hardness of composite coating has a relationship with TiC particles content and TiC particles distribution, and hardness increase with the increase of TiC particles content. The maximum value of composite coating hardness is 545 HV0.2 and 719 HV0.2, respectively. The major strengthening mechanism is fine-grain strengthening, solid solution strengthening and dispersion strengthening.
Plasma Nitriding of 20CrMo Steel with Nanostructured Surface Layer
Authors: Sun Jian , Zhang Jing , Tong Wei Ping , Zuo Liang , He Ji Cheng
Published: February 2012

A nanostructured surface layer was produced on an 20CrMo steel plate by means of ultrasonic shot peening (USSP) treatment. Plasma nitriding of the treated and un-treated sample were investigated by using structure analysis (X-ray diffraction, optical microscopy, and transmission electron microscopy ) as well as hardness measurements. It was found that a nanostructured surface layer sample developed a compound layer twice as thick as that in a coarse-grained sample under the same plasma nitriding conditions (530 oC for 6 h). In addition, the USSP nitrided sample exhibited higher hardness and thicker hardened surface layer in comparison with coarse-grained nitrided sample.
Enterprise Collaborative Management System Design for Dynamic Alliance
Authors: Tu Li
Published: February 2012

Information sharing is crucial to construct the networked manufacturing dynamic alliance. In dynamic alliance, the enterprise collaborative management system is an effective way to share information. Combining the confirming methods of system circumstance, the design features of Enterprise collaborative management system in Dynamic Alliance are analyzed, the system model and the architecture were built a to prosecute enterprise cooperation under the conditions of information. The knowledge in different enterprises was shared through the system to develop knowledge representing and handling capability.
The Product Structure Evolution Model for Maintenance Based on Finite Automaton
Authors: Hu Hao , Lu Yu Jun , Luo Hua Wu
Published: February 2012

The product structure evolution caused by maintenance activity was important constituent part of Product Lifecycle Management, but it has not been in-depth research in PLM and maintenance management. The mechanism of product structure evolution in maintenance stage was analyzed and the product structure evolution model for maintenance was set up in this paper. First, the product structure evolution was decomposed into the change of maintain status item, all sort of maintain events were classified into three classes according to their maintain method for maintain status item, then the kinetics characters of product structure evolution were sum up .Second, the change of maintain status item was marked and recorded through four classes of maintain status, then the relationship between maintain event and maintain status of maintain status item was modeled based on finite automaton, so the product structure evolution model for maintenance was set up. At last, the example of product structure evolution of SIDEL SBO14 bottle blowing machines was adopted to set forth above-mentioned.
Computer Control System Development for the New Type Pilot Cold Rolling Mill
Authors: Jiao Zhi Jie , He Chun Yu , Sun Jian Ming , Zhang Ying
Published: February 2012

According to the requirement to the pilot mill for the cold rolling process research work, new type pilot reverse cold rolling mill is designed. Computer control system, including primary automation system, process automation system and human machine interface (HMI) system, is developed for this mill. Technological control function such as electric position control, hydraulic tension control, automatic gauge control (AGC), and process control functions such as model setup calculation, process tracking, actual data treatment are realized. This new type pilot cold rolling mill has been used successfully in several iron steel companies.
Research of Grinding Wheel Wear Modeling Based on Hypothesis Test Principle
Authors: Wang Wei Zhi , Zhou Xue Liang
Published: February 2012

Grinding wheel wear has an obvious stage character, only in the end of wear stage, the workpiece surface quality will decrease significantly, in order to avoid such situation, need to find the critical point of grinding wheel wear in time. Based on the production field data, combined with the application of hypothesis test method, a new method to infer grinding wheel wear state was established in the article, the degree of grinding wheel wear can be quantificationally analyzed. Via practical production testing, is checked that the new method is effective.
Innovation on Quality Control: Case from Chinese Biggest E-Commerce Platform Operator
Authors: Zhang Hua Yao
Published: February 2012

This paper introduces the innovation on quality control from a single Tmall mode to online and offline interaction mode taken by the biggest Chinese e-commerce platform operator of Alibaba. During analysis, problem Alibaba has ever faced is followed by specific approach it applied, and then by a discussion of relative issues. What a reader can learn from this research is that the innovation is designed for the purpose of providing cost-effective, high-quality goods with perfect services. Consumer-oriented evaluation design and joint certification and control with suppliers and third-party agencies are severing for these purposes.
Fuzzy Control of Printing Color Quality Based on Genetic Algorithm
Authors: Yang Jun Jing , Chu Hong Yan , Cai Li Gang , Su Lei
Published: February 2012

Abstract : Aiming at the controlled object with large lag, model uncertainty and time variation due to the effects of working environment in printing process, and printing process requires few adjustment times, this paper designs a T-S fuzzy controller based on the theoretical model of printing color quality control, and uses the genetic algorithm to optimize the initial control rules of fuzzy controller . The optimization method aims at the problems of less known condition and the uncertain effects due to the environmental changes after the first printing. In the process of optimization, the theoretical model of the printing color quality control is used as the controlled object, and the parameters of control rule corresponding to the points of special error are optimized one by one, then the general fuzzy control rules can be got. Finally, an example illustrates the process of this method, and the robustness of the optimized fuzzy controller is analyzed. From the control results got by the optimized fuzzy controller, it can be seen that this method improves the control effects greatly, and reduces adjustment times. Finally, this paper gives some suggestions on its further perfection.
Research about Warm-Hot Forming Process Control of LTWB Auto B-Pillar
Authors: Guo Yu Qin , Yang Xin , Han Juan Juan , Chen Wei , Zhao Meng
Published: February 2012

In recent years, with the trend of auto body lightweight, more and more auto manufacturers pay attention to warm-hot forming of laser tailor weld blank (LTWB). In this article, choosing Audi Q5 B-pillar as the study object provided by Benchmark 2008 and using the stamping specific software Autoform, the effects of blank holder force (BHF) and drawbead on the formability of B-pillar are studied in different forming tempreture and put forward the reverse compensation method to control the weld line offset and the reverse compensation quantity is quantized, which has great significance to direct the industrial production, determine the process parameters of warm-hot forming and reduce the times of trying dies.
A Method for the Automatic Registration of Hull Blocks Point Clouds
Authors: Guan Guan , Shen Mei , Lin Yan , Ji Zhuo Shang
Published: February 2012

The deviation analysis of hull construction is a common problem in shipbuilding. In this paper, we present an automatic registration method of hull blocks points measured by Total Station based on principal component analysis (PCA) and the iterative closest point (ICP) algorithm. The method is divided into two steps. The first step rough registration based on PCA can narrow the dislocation between measurement points and CAD model points giving closed initialization. The second step refined registration based on ICP can obtain the optimal solution. The algorithm can automatically match measurement data with CAD model without prior information on transformation. We have applied this method to the registration of the Hull Block Point Clouds in a bulk carrier. Our result shows that the algorithm works efficiently.
Overview of Computer Simulation Modeling Platforms Based on Multi-Agent
Authors: Zhou Yi Xin , Wang Xi
Published: February 2012

With flying development of computer technology and network techniques, computer simulation technology has become an essential measure to analyze, test and evaluate complex systems. This paper briefly introduces two methods of computer simulation modeling. It mainly focuses on six computer simulation modeling platforms including their development institutions, design ideas, basic features and addresses to download. Finally it summarizes the similarities and differences of the six platforms.
The Layout Optimization of the same Size Operating Unit in the Facility Based on Quantity Maximization
Authors: Li Jing
Published: February 2012

On the analysis of the same size operating unit layout in the facility, this paper devises an ingenious two-dimensional rectangular layout. Then an algorithm for solving the two-dimensional rectangular layout is given. The experiment demonstrates that the layout restriction algorithm can effectively find the optimal or nearly optimal solution and is a preferable approach to solving the layout optimization of the same size operating unit in the facility.
The Assessment of SoS’s Structure Based on the MCSP
Authors: Wu Yong , Kang Rui , Pan Xing , Yang Jing
Published: February 2012

This paper first constitutes a system-of-systems’s statics model with the method of ABM (Activity Based Methodology) on the framework of DoDAF. And then change the statics model to dynamic with the method of BPMN ( Business Process Modeling Notation).In the support of simulation environment ,chose the mission completion success probability(MCSP) as the key index. Through a case study on the architecture of the civil aviation transportation, we calculate the aircraft’s mission of inherent completion probability(IMCSP) and run analysis on the model’s sensitivity. The modeling method and the case study results are accepted by relevant civil aviation transportation department.
Internal Capabilities, External Competition and Firm Performance: A Case Study for an Accelerated Internationalization Firm in Manufacturing
Authors: Gao Yu
Published: February 2012

There are increasing firms go to foreign markets quickly to reach their international strategy, particularly some firms come from emerging economies. It is hard to explain in the conventional theory of gradual internationalization, and different from the viewpoints of born-global. We argue that this previous discussion does not consider enough the risk of being a late mover in the face of changing period of its industry. This study explores the circumstances under which capabilities accumulated, changing and globalization, a strategy of undertaking outward foreign direct investment at a quicker speed, could be a considerable strategy. Using a case study on Chinese firm, we find that rapid FDI expansion enhances firm performance in industries where are competitive intense and paradigm-changing, and when it is done by firms with superior internal capabilities.
Research on Professionalized Operation and Management Model for Large and Medium Biogas Projects
Authors: Sun Yu Feng , He Xun
Published: February 2012

On the basis of analysis of domestic and inland management models for biogas projects, this article has learned experience from foreign experiences on operation and management of biogas projects. The key factor for medium and large biogas projects is professionalized operation and Specialized company who is an agency by agreement of the project investor. The new professionalized model manages biogas projects in comprehensive and systematic manner as per market demand, and provides efficient compressive services so that biogas projects could produce maximum social, economic, environmental and biological benefits. Thus, the new model which caters for requirements of market economy is a highly efficient vibrant modern management model for biogas industry. According to case analysis results, Hunan HuiMing Environmental Protection Energy Corporation is an experienced company that could be employed to operate and manage large and medium biogas projects.
Granite Step Gauge: A New Device for Error Measurement on CNC Machine Tools
Authors: Liu Huan Lao , Zhou Zuohui , Chen Bao Yue , Liu Feng , Ye Feng Lin , Tan Guang Yu
Published: February 2012

A simple pitch error of lead screw error measurement based on the granite step gauge has been presented in this paper. This method has the advantages of easy operation, less time cost and also high accuracy. this method is expected to find wide applications in machine calibration, machine manufacture and error compensation.
Design the Real Estate Industry Value Chain Based on Multidimensional Reconstruction
Authors: Han Hong Li , Liu Xiao Jun
Published: February 2012

This paper reconstructed the real estate industry value chain from static, dynamic, lateral and longitudinal dimensions based on an in-depth analysis of the elements consists of the industry value chain and its structural property. Then, this study proposed the real estate industry value chain system, and based on which an optimal design of this value chain has also been presented so as to contribute to the literature research as well as practices.
Greening the Housing Supply Chain in China
Authors: Yang Li , Zhou Yan Fang , Zhou Jie
Published: February 2012

Greening housing supply chain is a proactive response to environmental regulation. Customized community planning, LEED for Homes and mass customization housing production are introduced as main strategies of green housing supply chain corresponding to planning, and design and production stages of housing supply. Since environmentally-friendly practices occur more often in customized housing productions, housing buyers with environmental consciousness are playing an increasingly important role in greening the housing supply chain in China.
Bi-level Program on Competitive Location of Logistics Distribution Center
Authors: Yang Xin Zhu , Chen Xiao Lei , Guo Qi Sheng
Published: February 2012

When decision makers locate logistics distribution centers they will compete with the existing ones and with each other at the same time. The nonlinear bi-level program is modeled for two decision makers under network location environment. The upper and lower objective function is to maximize respective net profit which is the difference of profit and investment cost. Genetic algorithm is applied to solve the problem. A numerical example is also given to show the application. And the result shows that the decision maker who first locates is more dominant than the decision maker who locates later in the competition.
The Application of Smart Vehicle Deployment System in Asphalt Concrete Factory
Authors: Lin Jyh Dong , Chiou Chin Rung , Wei Kuang Yi , Lee Jih Chiang
Published: February 2012

Asphalt concrete is one material of pavement engineering. Owning to the density of AC factories in Taiwan is highly concentrated and with the characteristic of industrial structure and operations, the margin is not much. Under this situation, only the entrepreneur with efficiently manage could run the business. Recently, the production of AC is tended to be institutionalized, computerized and automated. But the produce schedule and distribution still need to arrange by experienced staff. To AC factory and the manager of construction site, it is a very important issue that how to efficiently produce and distribution with more benefit. This research is based on the traditional model of experienced vehicle deployment which recording the delivered paths, time and related information. By the systemize analysis, we could compare the difference output of intelligent vehicle deployment system between the traditional one. This way, the actual benefit of deployment system could be estimated. This research result could be help for decision making.
A Study on Family Medical Sensor Networks and ECG and Temperature Monitoring Node Based on 6LoWPAN
Authors: Fu Wei , Shui Meng Ling , Wang Ping
Published: February 2012

By using advanced IPv6 technology, This paper presents a design of family wireless medical sensor networks(WMSN) and a implementation of ECG and temperature monitoring sensor node. The 6LoWPAN medical sensor nodes can add into the WMSN rapidly and the biomedical data are routed into the Internet through the gateway, therefore, it can get the information of health record on the web expediently and simply. In addition, this paper proposes a scheme of telemedicine for convenient and secure medical service.
Tmall Incident - A Legal Problem or Business Operation Dispute
Authors: Guo Yi Meei , Hu Wei Wei
Published: February 2012

Tmall incident invokes legal concerns in certain aspects and is a bussiness operation dispute by nature. This article brings forward the suggestion to make a balance between both parties and hopes a good and healthy development of China’s e-commerce.
Development of the Iron Elimination Technology of Acid Cleaning Solution of Hot Dip Galvanizing Process
Authors: Moon Kyung Man , Oh Min Seok , Won Jong Pil , Kim Yun Hae
Published: February 2012

Hot dip galvanizing is being widely used to the numerous constructional steels such as a guard rail of high way, various types of structural steel for manufacturing ship and for some other fields etc.. Recently, the cost of zinc is getting higher and higher, thus, a proper manufacturing process should be developed possibly to reduce the cost of production. one of hot dip galvanizing process, that is, acid cleaning process is very important to control more effective coating. However, acid solution is deteriorated with increasing its using time because dissolved iron from structural steel due to continuous acid cleaning was increasingly increased, and which is resulted in coating badness and increment of dross. In this study, elimination of iron dissolved in acid solution was investigated with some types of inner solution added with additives such as seawater, NH4OH, NaOH, NH4Cl and thiourea, and electrolysis experiment was carried out with parameters of applied current density. For elimination of iron from acid cleaning solution through electrolysis, it is considered that inner barrel with separator should be filled with solution different from original acid cleaning solution which is involved in iron ion, that is , the inner solution which is made up seawater added with additives such as NH4OH(10g) , NaOH(3.5g) and thiourea(0.5g) is the most desirable solution to effectively extract iron from acid cleaning solution. An optimum applied current density for the most extraction effect of iron through electrolysis experiment is thought to be 50mA/cm2 .
Based on the CAM Error Prediction Research of BP Neural Network
Authors: Jia Guan Wei , Han Qiu Shi , Li Qi Guang , Peng Bao Ying
Published: February 2012

The double channel function of Siemens 840d numerical control system collected the input data needed by BP neural network model. Combined with detection lift error in actual process of machining CAM, the detecting lift error is predicted with using of BP neural network model designed by the neural network toolbox and the train of neural network. The test results of this method are proved to achieve the predicted effect, which means that can be used in the CAM processing lift error prediction.
Finite Element Analysis of Grinding Temperature Field with Water Vapor as Coolants
Authors: Ren Jia Long , Zhao Li Gang , Wang Yan , Zhang Chun Yan , Tian Xi Rong
Published: February 2012

Combined with the fluid mechanics, heat transfer and cooling experiments of grinding to obtain the conclusions: the water vapor with certain pressure and temperature has large heat transfer coefficient and can significantly reduce the temperature of grinding zone in grinding process. Firstly, simulates the temperature filed with water vapor as coolants in grinding field to obtain its temperature distributing situation using software of ANSYS. Then, research the influences of different grinding parameters to the grinding temperature field and grinding temperature distribution along the depth direction of the specimen. In the end, contrasts the data between simulation and experiment of grinding temperature to prove scientific properties of the finite element method simulation.
Finite Element Analysis on Directional Solidification of Al-Ni-Co Alloys
Authors: Tian Shi Long , Yang Zhi Li
Published: February 2012

Transient temperature fields of directional solidification of Al-Ni-Co alloys were studied by employing finite element method. Temperature gradient at solidification front and solidification rate was analyzed under different pouring temperature of molten steel. The results show that with different initial pouring temperatures of molten steel, individual ratio of temperature gradient at solidification front to solidification rate soars up in the initial stage of solidification, then varies within 2000-6000°C•s•cm-2, and finally plunges down and goes together when the solidification thickness reaches 5-6cm. Simulation result is consistent with the production reality. Numerical simulation results can provide an available reference for process optimization of directional solidification of Al-Ni-Co alloys.
Predicition of GRT Fiber-Rubberized Haydite Concrete Compressive Strength Based on Multiple Regreeion Analysis and BP Neural Network
Authors: Xia Bing Hua , Liu Yuan Cai , Zhu De Bin
Published: February 2012

Experiment with intensity level for the LC30 ceramsite concrete as the research object, changing the content of cement, GRT fiber, rubber powder by the orthogonal test to configure GRT fiber—rubberized haydite concrete samples, maintenance samples 7d and 28d in standard conditions and respectively testing their standard compressive strength. Through the analysis of the test data, using multiple regression analysis established the GRT fiber—rubberized haydite concrete 7d and 28d standard compressive strength regression formulas.By means of BP neural network theory combine MATLAB programme established GRT fiber—rubberized haydite concrete 7d and 28d standard compressive strength neural network model.Finally using 3 groups new test data to compare the value of multiple regression equations and BP neural network’s predicted value.The results indicate that the multiple regression equations and BP neural network model are availabled.
Research on Deep Drawing with Multi-Point Variable Blank-Holder Force Controlling by Computer
Authors: Ding Ming Ming , Huang Yong , Shi Yu Qing
Published: February 2012

On the basses of analyzing the defects of variable blank holder force hydraulic press on construction and its rigid being not enough,the realization of designing method,working principle,hydraulic and system for ne controlling w type upper multi-point deep drawing with variable blank—holding force controlled by computer was introduced.In order to verify the effect of application of this set up,the testing results of deep drawing a rectangular box and a cylindrical cup formed component was presented. The results show that the equipment has low cost, general in using and optimal efficient of controlling.
The Applications of Vacuum Drying Technology in the VIP Core Material’ Pre-Treatment
Authors: Wang Zhong Cheng , Kan An Kang
Published: February 2012

This paper researched the mechanism and model of moisture transfer in the core material of VIP- glass fiber, and introduced the vacuum drying technology to enhance the gas molecules’ movement under vacuum, accelerate the speed of water vaporization and avoid voids adhesion to overcome the adsorption resistance. The article also designed the equipment to provide experimental possibilities for the theoretical study.
Analysis of Edge Cracks in Hot Rolled Aluminium Alloy Sheets Contained of Magnesium for Can Usage
Authors: Huang Rui Yin , Guo Ying Ying , Zhu Yuan Zhi , Liu Wang
Published: February 2012

the edge crack frequently occurs in hot rolled 5182 alloy. SEM, EDS,etc.are used to analyze the factors leading to the cracks. It is discovered that high sodium content, and coarse intermetallic phase and inclusion are the main reason for these cracks. Meanwhile, some measures are suggested to be taken to avoid this kind cracks: making sure sodium content below 3 ppm; controlling the casting process and chemical composition to avoid coarse intermetallic phase; refining the melting aluminium to eliminate inclusion; setting a suitable scalping depth.
Microstructure and Properties of Ti6Al4V Alloy Prepared by Hot Isostatic Pressing
Authors: Wang Ji Wei , Zeng Jian Min , Lin Guang Ke , Wei Qing Song , Shi Yu Sheng
Published: February 2012

Pre-alloyed Ti6Al4V powder produced by plasma rotating electrode process (PREP) was consolidated by hot isostatic pressing (HIP) under the parameters of 930°C/100MPa/3h. The microstructure is analyzed using scanning electron microscopy (SEM). The tensile property is measured at room temperature, the fracture surface morphology of the tensile specimens was investigated using SEM as well. The results show that the dense body has homogeneous microstructure and fine grain size. The average values of ultimate tensile strength (UTS), yield strength (YS) and elongation (EL) are 1119 MPa, 1043 MPa and 18% respectively. The fracture of specimen presents ductile fracture.
An Investigation of Several Nb-Ti-Al Based Alloys on Microstructure
Authors: Wang Yan Qing , Liu Zhao Gang , Sun Ben Shuang , Wang Dong Xin
Published: February 2012

Several Nb-Ti-Al based alloys have been investigated by X-ray diffraction (XRD) and optical microscope (OM). It was found that the morphology of the B2/β phase was different from the O phase (Ti2AlNb) and δ phase (Nb3Al). The B2 phase can not be separated from the disordered β phase by metallography and XRD easily. And the typical morphology of O phase alloy is large herringbone structure. After that the aberrance of the lattice parameters was discussed in this article. The present result indicates in these alloys the lattice parameters were mainly determined by the ratio of Nb to Ti. As the ratio of Nb to Ti in alloys increased, the lattice parameters increased too.
Prediction of Effective Material Property of Tailor Welded Blanks for Air Bending Process
Authors: Duan Yong Chuan , Guan Ying Ping , Ma Xing Dong
Published: February 2012

A method based on artificial neural network (ANN) for predicting the effective material property is put forward in this paper. The finite element model of tensile test specimen is modeled in LS-DYNA code, which has transverse weld at the middle of the specimen and conforms to the ASTM specification. A statistical error analysis model is used to include the random phenomenon in the result of tensile test finite element model and verify the accuracy of finite element model (FEM) simulation. In order to study the effect of the processing parameter with design of experiment is followed, the simulation trail is conducted in all the levels of parameters. It is assumed that Hollomon’s law is followed by tailor welded blanks. The results obtained from fitting the post-process data of FEM by least square method are used to train and develop ANN model, the prediction average error of ANN model is acceptable compared with simulation trail.
Finite Element Simulation and Analysis on Folding Defects of Inner-Grooved Copper Tubes
Authors: Liu Jin Song , Ye Neng Yong , Zhang Shi Hong
Published: February 2012

Based on the actual field processing parameters, the finite element model of TP2 inner- -grooved copper tubes at the groove forming stage was established by using finite element software MSC. Marc in this paper. It shows that the simulation results are in agreement with the actual situation. The flowing condition of inner groove during metal deformation can be reflected exactly through this model. By the analysis on the metal force of spinning area, the revolving speed of motor and grooved plug and the drawing speed have a great influence on the folding defects.
Research on Power Properties of Vibration Ball-Medium Reactor in Transesterification for Polycarbonate (PC)
Authors: Huang Can Jun , Zhao Yong Qing , Wu Zheng Huan , Qu Jin Ping , Feng Yan Hong
Published: February 2012

In this paper, a mechanical model of the vibration ball-medium reactor was built, of which the motion track was solved, and the numerical method of that was induced, in addition, using the experiment, the validity of the calculation formula of the complete power consumption was proved, the theoretical and experimental references were provided for the optimal parameter design of the vibration ball-medium reactor.
Finite Element Analysis of Formability of Aluminum Alloy Double-Curved Panel by VPF
Authors: Li Yi , Wang Zhong Jin , Li Yan Ping
Published: February 2012

To investigate the formability of aluminum alloy panel during the viscous pressure forming (VPF), the stress state and plastic flow of the aluminum alloy double-curved panel during VPF are analyzed by the commercial software ANAYS/LS-DYNA. The influence factors of thickness reduction are also investigated. The results show that the viscous medium is helpful to improve the uniform flow of the sheet blank. From the panel centre to the flange edge, the stress of the sheet blank turns from tensile-tensile stress to tensile-compressive stress. The stress state boundary lies at the edge of the double-curved panel. The formability of the sheet blank can be improved by controlling the blank holder pressure and drawbead height.
Application of Crab Shell Chitosan on Nonwoven Wool
Authors: Islam Saniyat , Cheung Anna , Wang Li Jing , Arnold Lyndon , Padhye Rajiv
Published: February 2012

Textile substrates can be coated with suitable polymer solutions to enhance the surface functionality. This paper highlights the deposition of chitosan (CHT) on wool nonwoven substrates using traditional pad-dry-cure method; and its potential application in medical textiles specifically wound dressing products. Wool nonwoven substrates were prepared by pre-treating with BMIMCl (ionic liquid) and application with different concentrations of CHT. The liquid uptake and antimicrobial efficacy was evaluated. It was shown that 0.3% CHT treated samples demonstrated good liquid uptake and excellent antimicrobial properties.
Geometrical Description of Two-Dimensional Optimization Design Model
Authors: Li Hai Wen , Dong Li Hong
Published: February 2012

The optimization problem of objective function that has two design variables can be converted into the minimum value problem of the objective function’s curved surface within the range of constraint function in the 3D coordinate system. By using the powerful data visualization capabilities of MATLAB, draw out the curved surface of objective and constraint functions in 3D coordinates system and make geometrical description of the two-dimensional optimization design model. Through the given examples of optimization design, it can be seen that to solve the optimization design problem through this method is efficient, easy and convenient.
Stresses Unified Solution for Wire Forming Based on Unified Strength Theory
Authors: Li Xiao Wei , Zhao Jun Hai , Chen Wei
Published: February 2012

For known well the contributions of both tension-compression-ratio of material and intermediate principal shear stress to wire forming, the wire forming problem is developed based on unified strength theory. By denoting a notation of D, the unified stresses solution for wire forming is gained, which is suitable to both wire drawing and extrusion. In addition, when material has identical strength in tension and compression, the stresses solution based on unified strength theory become that based on unified yield criterion. Notably, it is proved that the stresses of wire forming are independent of the intermediate principal shear stress. Whether any yield criterion (e.g., Mises, Tresca or unified yield criterion) is adopted, for it is assumed that the tensile and compressive strength is equal to one another, the stresses solution is as same as that based on unified yield criterion, and is merely a special case of the unified stresses solution developed by this paper.
New Hybrid Desalination Design and Modeling
Authors: Zhang Jian Hua , Wang Zhong Cheng
Published: February 2012

In order to adapt to the development of world integration, most modern ocean-going vessels are engaged in long transport routes voyages, so the demand for fresh water is very large. From the energy conservation, improving the amount of water production, saving shipping companies operating costs, increasing ship endurance capacity point of view, combine the vacuum system which has the feature of less salt content with the reverse osmosis water production system which has the advantage of large water production, now we design the new type composite desalination plant, and doing the model calculation, the study has a very high prospects for the development and practical application value.
Analysis on Grinding Force of SiCp/Al Composites Based on MATLAB
Authors: Shi Li , Zhou Li , Xu Li Fu , Zhao Lei , Huang Shu Tao
Published: February 2012

SiCp/Al composites were grinded with Diamond Wheel on high-precision machine. Acquiring grinding force signals of the experiment with High Speed Advantech PCI－1712 board. Acquired grinding force signals are analyzed in MATLAB which has mighty function disposing signals. Through analyzing the grinding force in time field, frequency field and the signals wavelet analysis for different grinding parameters, found that the feed velocity has much more influence on the grinding force, the grinding force ratio and the standard variance of the grinding force than the depth of grinding when the velocity of the Diamond Wheel is fixed. The frequency structure and energy distribution of grinding force are showed in PSD analysis. The signals are de-noised in wavelet tools. The result of the experiment indicates the grinding force increases, the grinding force ratio decreases and the standard variance of the grinding force varies complex for different material with the increasing of the velocity of the workpiece and the grinding depth.
Design of Electrocircuits for Ultra-Precision Positioning Platform
Authors: Zhu Wei Bin , Zhu Shan'an , Yan Jun Fang , Ye Shu Liang
Published: February 2012

This paper introduces a new position method based on phase difference. The electrocircuits are designed to meet the position demand. The signal produced, phase demodulation, drive circuit are described. Lots of experiments are performed to test the linear error, hysteresis error, repeatability error and stability error. The uncertainty is synthesized based on testing data and the results show that the displacement error form electrocircuits is less than 11.2nm.