bluuebunny/crossref_metadata_2025 huggingface dataset:
Design and Simulation Analysis of a Hybrid Manipulator
Authors: Xue Zi Yun , Zhang Bin , Jia Ji Xing , Zhang Dong Bo
Published: June 2013

The unique design for a novel 3-DOF hybrid mechanism is proposed in this paper. The 3D modeling of the structure is constructed with Pro/E., kinematics and dynamics simulation by ADAMS software, which can provide a theoretical base for the optimal design and application of the mechanism. This novel 3-DOF hybrid mechanism is suitable for the industrial, agriculture and service applications in which the requirements for simple structure, high stiffness, and large workspace.
An Internal Model Control (IMC) Algorithm for Automatic Trajectory Tracking
Authors: Zhang Su Min , Deng Wei Wen , Wang Yu , Shang Bing Xu
Published: June 2013

This paper presented a trajectory tracking algorithm applied for an intelligent driving system. Both the path tracking and longitudinal speed tracking controller are based on IMC algorithm and are carried out respectively. A simulation tool is introduced in this paper and some simulation tests were conducted to verify the proposed trajectory planning algorithm. The simulation results show that the proposed trajectory tracking algorithm is valid and good for the applications of vehicle driving in complex environment.
Simulation and Optimization Design of the Transplanting Manipulator
Authors: Gao Guo Hua , Yang Hang , Wei Kang Cheng
Published: June 2013

The transplanting manipulator is one of the key mechanisms of transplanting machine. Many factors have great influence on transplanting effect, which mainly correlated to the clamping force and the speed of the steel inserting the matrix. In this work, the authors present a 3D model of the transplanting manipulator based on the actual requirements, then, conduct the dynamic analysis of the transplant manipulator based on the SIMPACK and find out the unreasonable design according to results of the analysis. Finally, verifying the optimization results by ANASYS. In view of the above, optimize and improve original structure in order to provide theoretical basis for the processing of physical prototype and application.
Design and Implementation of the Cold-Rolled Aluminum Plate Surface On-Line Defect Detection System
Authors: Qi Xing Guang , Zhang Hai Lun , Li Xiao Ting
Published: June 2013

This paper presents an on-line surface defects detection system based on machine vision, which has high speed architecture and can perform high accurate detection for cold-rolled aluminum plate. The system consists of high speed camera and industrial personal computer (IPC) array which connected through Gigabit Ethernet, achieved seamless detection by redundant control. In order to acquire high processing speed, single IPC as processor receives from and deals with only one or two cameras' image. Experimental results show that the system with high accurate detection capability can satisfy the requirement of real time detection and find out the defects on the production line effectively.
Hydrothermal Synthesis, Characterization and Optical Properties of Zn-Doped CdS Dendritic Nanostructures
Authors: Feng Hao , Duan Jun Hong , Xu Zhen Ya
Published: June 2013

Zn-doped CdS dendritic nanostructures were prepared by a simple hydrothermal method. The product displays single-crystalline characteristic. The dendritic crystal is formed by growing along several equivalent directions ([2-1-10],[-1-120]and[-12-10]). Due to doping Zn, the CdS dendritic nanostructures present some beneficial properties and are promising candidates for future applications in optoelectronic nanodevices.
Study on Application of Fast Intrinsic Mode Decomposition to Short-Term Load Forecasting
Authors: Wang Shu Zhong , Fan Xin Qiao
Published: June 2013

The forecasting technique is one of the key factors for load forecasting. According to analysis, the Fast Intrinsic Mode Decomposition (FIMD) method is applied to short-term load forecasting in this paper. The specific implementation process of the proposed short-term load forecasting method is in the following. The selected load sample data are decomposed into a number of stationary Intrinsic Mode Functions (IMFs) with respective single mode by the FIMD method firstly. Then, each obtained load component with different frequency band is forecasted according to the Gene Expression Programming (GEP) method by time-sharing. The final forecasting models are obtained by rebuilding the forecasting model of each IMF. Lots of virtual forecasting tests are done, and it proves that the proposed load forecasting method based on the FIMD method in this paper is more accurate than the method based on Empirical Mode Decomposition (EMD).
Weight Determination Method Based on Principal Component Analysis Coking
Authors: Chen Hong Jun , Bai Jin Feng
Published: June 2013

In order to make an accurate prediction of coke quality, which indicators need to find out with the coal for coke affect. This paper proposes a principal component analysis to determine with the indicators of coal coke weight, the results show that this method can effectively confirm with the main component of coal coke impact, and lay a solid foundation for subsequent coke prediction.
The Research of a Two-Directional Vector-Valued Quarternary Wavelet Packets and Applications in Material Engineering
Authors: Zhou Jian Feng
Published: June 2013

In this paper, we introduce a class of vector-valued four-dimensional wavelet packets according to a dilation matrix, which are generalizations of univariate wavelet packets. The defini -tion of biorthogonal vector four-dimensional wavelet packets is provided and their biorthogonality quality is researched by means of time-frequency analysis method, vector subdivision scheme and functional analysis method. Three biorthogonality formulas regarding the wavelet packets are established. Finally, it is shown how to draw new Riesz bases of space from these wavelet packets. The sufficient condition for the existence of four-dimensional wavelet packets is established based on the multiresolution analysis method.
A Fast Connection Construction and Update Algorithm
Authors: Liu Feng
Published: June 2013

In the research area of network security, we often need to analyze the Internet traffic in real time. But the Internet traffic is usually very heavy, so it is very hard for us to analysis each packet one by one. Alternatively, analyzing the Internet traffic on flow level is often employed. Before analyzing the traffic flows, how we can fast construct and update these flows is a key issue. To solve this issue, in this paper, we propose a fast connection construction and update algorithm. Firstly, we define bidirectional flows as connection. Then, we use hash table to store the connection records and use this connection construction and update algorithm to ensure that these connection records can to be stored in memory in heavy traffic environment to achieve real-time traffic analysis. At last, the experiments show that the algorithm we proposed is efficient and can meet the traffic analysis need.
Research on the Activation System of Lead-Acid Battery
Authors: Wen Wu Song , Wang Lu
Published: June 2013

For the valve-regulated lead-acid (VRLA) battery, an on-line activation system is designed, which is composed of personal computer (PC), sixteen bits MCU, touch-screen, mass FLASH memory, ferroelectric random access memory (FRAM), Ethernet interface, USB interface, charging module, discharging module, and so on. The charging module is designed based on distributed power supply with low voltage and large current, and using the method of intelligent segmentation-limit-current to realize nondestructive charging. The discharging module is designed with technologies of PID and PWM, and battery discharging with constant current can be realized by controlling the power switches. Test results present that the system runs stably, can activate and repair the battery well in the early days of losing efficacy.
Genetic Algorithm for Panel Cutting Stock on CUDA Platform
Authors: Xie Wen Wu , Ning Tao
Published: June 2013

The problem of placing a number of specific shapes on a raw material in order to maximize material utilization is commonly encountered in the production of steel bars and plates, papers, glasses, etc. In this paper, we presented a genetic algorithm for steel grating nesting design. For application in large-scale discrete optimization problems, we also implemented this algorithm with CUDA based on parallel computation. Experimental results show that under genetic algorithm invoking with CUDA scheme, we can obtain satisfied solutions to steel grating nesting problem with high performance.
Research of the Finding Technology of Invocation Model and Data Model of Testing Systems Based on TTCN-3
Authors: Liu Xue Mei , Liu Yong Po , Liu Shuang Mei , Su Liang Yuan
Published: June 2013

As the test system grows in size and the testers change, the management and maintenance of the huge test systems have become more and more difficult. Therefore the reverse engineering based on TTCN-3 test systems can help testers grasp the system design from higher levels, and can test the consistence between test design and test implementation, which is of great significance and important value for test system maintenance, expansion and evaluation. This thesis presents the reverse model recovery for the legacy code developed by TTCN-3. It can also help tester and maintainers to verify the test implement. Then the test system meta-model is designed. This thesis also introduced the technologies of the discovery of invocation model and data model based on the reverse model discovery system framework. Finally, the algorithms of extracting invocation model and partitioning data model are described.
Research on the Cloud Manufacturing Service Discovery for Industry Manufacturing System Based on Ontology
Authors: Yang Chen , Wang Zhong Jie
Published: June 2013

With the development of manufacturing globalization, cloud manufacturing is becoming a hotspot of network manufacturing. In cloud manufacturing, how to response to users services demands fast and accurately is an important indicator to evaluate the performance of this system. To achieve a cloud manufacturing platform for industry manufacturing system, this paper proposes service-oriented platform architecture based on semantic. Also, to realize the manufacturing resource data virtualization, the semantic description of manufacturing cloud and the combined manufacturing ontology is established. To fulfill the requirements of providing the fit cloud service or service combination, a cloud manufacturing service discovery model is investigated on focus, the organic decomposition and combination of manufacturing cloud is completed by ontology reasoning, and intelligent search and automatic matching of manufacturing cloud is realized.
Analysis and Design of Intelligent Assessment System for Supplier Service Quality
Authors: Wang Lian Jie
Published: June 2013

Through the study of the multiple dimensions of supplier, this paper comes up with an index system of evaluating the quality of supplier service quality and studies the analysis and design of intelligent assessment system for supplier service quality. Based on the extensive collection of survey research result, the paper form an index set with the KPI method, then form the fuzzy comprehensive evaluation model. This intelligent assessment system map all relevant information of supplier that an earlier entered to the evaluating indicator, then output the assessment result. With the help of this system, the purpose of providing reference for that managers make decisions is attain.
An Information Retrieval System Based on Portable Device
Authors: Yu Xiao Qing , Wang Wen Gen , Shi Jian Hua , Wang Yun Hui
Published: June 2013

Information retrieval is the activity to organize information in a certain way, and according to the users demand to find out the related information from a collection of resources. Retrieval process and technology can be based on metadata or full-text indexing. Most of the relevant information retrieval systems are devised on the computer. However, with the highly development of the embedded technology, some popular application have been developed on the platform. In this paper, we will introduce an information retrieval system on the iOS platform which is more convenient, practical, and effective compared with the traditional system. And we will introduce an application based on this system design. The experiments shown that this system was exactly effective utilized to retrieval audio information.
Synthesis and Characterization of a New Amino-Functionalized PMO Material
Authors: Ding Fei , Liu Shuang Xi
Published: June 2013

A new organic silicane which is bridged by a long amino-functionalized alkyl chain was prepared and used as the precursor in the synthesis of a series of PMO materials. The organic silicane was added into the reaction system in CH2Cl2 and the PMO materials were prepared by a simple stirring method under acidic condition, with a nonionic surfactantBrij 76 as template. To find the proper synthesis condition, the time of stirring and the proportion of organic silicane and TEOS were varied. Liquid and solid state NMR, X-ray diffraction (XRD) patterns, thermogravimetric analysis (TGA), transmission electron microscopy (TEM) and N2-physisorption properties were used to characterize the structures.
The Application of Bluetooth in the Control System of the Smart Home with Internet of Things
Authors: Zhao Xue Feng
Published: June 2013

Basing on the research of the network structure of the control system of the smart home and the characteristic of the wireless technology of the Bluetooth, it proposes an implementation of the control system of the smart home basing on the Bluetooth technology, builds the communication protocol architecture of the control subnet in smart home, and develops the smart home controller basing on the ARM9 S3C2440. In the control system of the smart home, it can implement the log, control, add, remove and other basic operations of the control sub net in the smart home system towards the household electrical appliances.
Synthesis of Sodium Tungsten Bronze via Hydrothermal Method Assisted by Citric Acid
Authors: Luo Jia Yu , Liu Jing Xiao , Shi Fei , Xu Qiang , Jiang Yan Yan , Liu Gui Shan , Hu Zhi Qiang
Published: June 2013

Sodium tungsten bronze NaxWO3 powders have been prepared by hydrothermal method using sodium tungstate as raw material and citric acid as reducing agent, followed by annealing under the inert gas N2 atmosphere. The prepared powders were confirmed as tetragonal sodium tungsten bronze Na0.1WO3 by X-ray diffraction. The SEM observation showed that the as-prepared Na0.1WO3 particles exhibited rod-like morphology with about 20 μm in length and 5 μm in diameter. The influence of pH value of the precursor solution and annealing temperature on the synthesized powders were also investigated. The results indicated that sodium tungsten bronze NaXWO3 would not be obtained when the pH value of the precursor solution decreased to pH=1 or the annealing temperature was lower than 700°C by this hydrothermal method. Additionally, as the wavelength increasing, the transmittance of prepared NaxWO3 exhibited higher visible light transparency with reaching up to about 58% and a downward trend in near-infrared area, which indicates that the prepared Na0.1WO3 have potential application as near-infrared shielding material.
The Design of Remote Real-Time Intelligent Monitoring System Based on ARM and DSP for Precision Grinding Machine
Authors: Liu Qiang , Zhang Dong Xu , Tang Qia Heng , Wang Zhan Shuai , Guo Yin Biao
Published: June 2013

A remote real-time intelligent monitoring system based on ARM and DSP for precision grinding machine was reported in this paper. The monitoring system has many functions, such as video and audio monitoring, image comparison, vibration and temperature signal collection, pretreatment and storage, and real-time intelligent monitoring. A signal synchronous processing method based on interpolation theory was reported, because the frequency difference between the DSP acquisition and the ARM transmission will cause lose and vacancy problem in the process of signal transmission. As shown in the computer simulation results, the monitoring system improves the safety and reliability in the precision grinding machine process.
Simulation and Analysis of the Anti-Sway Control of Crane Ship Based on Adams and Matlab Co-Simulation
Authors: Ren Hui Li , Fu Ling , Li Pan , Gao Chang Chun
Published: June 2013

The thesis established the virtual prototype model of the crane ship based on the software platform of Adams and designed the control program to control the virtual model based on Matlab/Simulink. In the ideal working condition for crane ship, the co-control effectively reduces the swing angles of the hoist by the control program of open-loop control.In the working condition when the ship has more substantial movements, Adams and Matlab co-simulation reduces the swing angles of the hoist by the control program of open-loop control to change the pitching angle and slewing angle of the boom.
Exploration of Offbeat Funny Design on Daily Ceramic Products
Authors: Cheng Jin Xia , Huang Jin Fa
Published: June 2013

With the propose to meet the common characteristics of the forthcoming 80s and 90s groups, the offbeat funny design of daily ceramic product takes maverick and personal style as the main idea to explore ceramic product design, through unearthly design conceptual analysis, investigate offbeat shape, function, decoration and other aspects, in order to enrich the daily ceramic product creative and market, and final to satisfy the new era of mainstream groups aesthetic and consumption demands.
Incorporating Ergonomics Evaluation in Assembly and Disassembly of Repetitive Task: Focusing on Load Task
Authors: Md Dawal Siti Zawiah , Raja Ghazilla Raja Ariffin , Zadry Hilma Raimona , Widia Mirta , Abdullah Nor Suliani
Published: June 2013

Human performance seems to be neglected in the design of assembly and disassembly of a product despite the increasing awareness among people on green environmental issues. Incorporating an ergonomics evaluation can be considered as an alternative empirical solution to tackle the issue efficiently. Therefore, the objective of this study is to investigate human performance with reference to muscle activity while performing assembly and disassembly of manual tasks focusing on load variability. Upper limb muscle activities were investigated in this study. Twenty participants were asked to perform assembly and disassembly of selected tasks at two load-levels. The results of this study indicated that load tasks affect human performance. The findings from this study highlighted that the muscle activity for the medium load task was prone to fatigue faster than the low load task (28.19% in average). Thus the study has revealed the importance of incorporating the ergonomics principle solution in the design of assembly and disassembly tasks to increase human performance.
Emotional Design Study on Soy-Milk Grinder
Authors: Zhou Mei Yu , Liu Yi Qing , Wu Jue
Published: June 2013

This article researches on the methods of application of Kansei Engineering and product design, which are based on the consumer questionnaires and used factor analysis to analyze quantitatively the shape intention of soy-milk grinder products. And this article combines the relative product-design methods to build the factor analysis model between perceptive images and shape elements of soy-milk grinder in order to discuss the concept-building methods of product design.
In Situ Testing and X Rays Radiation Effects of Pt/Bi3.15Nd0.85Ti3O12/Pt Ferroelectric Capacitors
Authors: Li Li
Published: June 2013

Pt/Bi3.15Nd0.85Ti3O12(BNT)/Pt ferroelectric capacitors were monitored using in situ X-ray irradiation with 10 keV at BL14B1 beamline (Shanghai Synchrotron Radiation Facility). BL14B1 combined with a ferroelectric analyzer enabled measurements in situ of electrical performance. The hysteresis curve (PE) of distortion depended on the polarization during irradiation, but the diffracted intensities of the (117) peak did not change in the beginning. The PE curve had a negligible change from 2.09×109 Gy to 4.45×109 Gy. Finally, both Prand Pr+ very rapidly increased, but the intensities of (117) decreased. The hysteresis loops were remarkably deformed at the maximum total dose of 4.87×109 Gy.
Research on the Capability Evaluation of the Emergency Logistics Center Based on Linguistic Variables
Authors: Zhang Xian Long , Nie Tong Tong
Published: June 2013

Based on the current research status of logistics capability evaluation, the system of ability evaluation index in the emergency logistics center is constructed in this paper, on the basis of which the evaluation value of the expert linguistic variables is transformed into interval number , the maximum deviation method is used to determine the attribute index weight and finally TOPSIS method is used to calculate the distance between the ideal solutions and negative ideal solutions in each scheme and calculate the relative close degree, according to which the arranging order of each scheme is determined, and thus provides an important basis for the construction of emergency logistics center and its performance evaluation in the unconventional emergencies.
Analysis of the Main Technical Ways of Automobile Energy Saving
Authors: Wang Xiu Jie
Published: June 2013

ts significant that auto energy-saving and emission reduction to achieve the whole societys energy-saving and emission reduction, to promote the optimization and upgrading of the automobile industry, to create the modern automobile industry which is characterized by structure optimization, rational layout, advanced technology, and friendly environmental, and ultimately realize the transformation from the automobile power to auto giant. This paper firstly analyses the significance of auto energy saving and emission reduction in China, then points out the six main technical way to realize the vehicle energy-saving and emission reduction, and the existing problems in every kind of current techniques, then puts forward the corresponding measures and suggestions.
A Study on Patent Storage Problems of Cooperation between Small and Micro Businesses and Universities in the Triple Helix of University-Industry-Government Relations — Based on Economic Order Quantity Model
Authors: Tang Pei Yu , Su Shi Bin
Published: June 2013

The paper uses Economic Order Quantity Model to analyze patent storage problems of cooperation between small and micro businesses and universities from the perspective of university-industry-government relations and reach a conclusion. The author obtains the optimal solution and points out the future research direction.
Study on Examination Reform of Specialized English for Seafarers on International Ships
Authors: Wang Tao
Published: June 2013

Seafarers English level is very important to keep the ocean-going vessels safely navigate at sea. So China MSA requires all the seafarers on international ships must pass the SESIS Examination. After a brief introduction of SESIS Examination in China, this paper analyzed some problems of the examination with respect to examination syllabus, examination mode and test question types. Combined with the practice of SESIS training and examination organization, this paper gave some advice, such as revise and perfect examination syllabus, popularize and apply computer-assisted examination mode, carry out reform of examination questions and types.
On Characteristics and Development Trend of Advanced Manufacturing Technology
Authors: Wang Huan Yun , Diao Li Jing
Published: June 2013

Manufacturing industry is the foundation of national economy and an important manifestation of the comprehensive national strength. The economic competition in the world is mainly the competition of the manufacturing industry. This paper analyzes the importance of advanced manufacturing technology, introduces its concept and characteristics and probe into its development trend.
Thermodynamic Behavior of SiH2Cl2 in Polysilicon Production by Siemens Process
Authors: Song Dong Ming , Hou Yan Qing , Xie Gang , Ma Zhuo Huang
Published: June 2013

The present of SiH2Cl2 (DCS) is a big problem because of its instability. The content of SiH2Cl2 should be controlled below somewhat concentration. Therefore, the present study is aimed at investigating the thermodynamic behavior of SiH2Cl2 in polysilicon production by Siemens process in order to provide effective theory for the production process. The effect of pressure (1-5atm), feeding ratio of H2 to SiHCl3 (2-50) and temperature (1000-1500K) have been studied in the paper. The results show that the productivity ratio of DCS increases with increasing pressure and increases firstly and then decreases with increasing feeding ratio or temperature. In a word, the pressure have biggest effect on productivity ratio of DCS compared to temperature and feeding ratio.
Electrophoretic Deposition of TiO2 Films on Metal Mesh for Dye-Sensitized Solar Cells
Authors: Cheng Da Long , Hsu Yu Ching , Kao Kuo Sheng , Su Hong Jie , Liang Chia Hua , Wang Chih Ming
Published: June 2013

Transparent conducting oxides (TCO) are commonly used in electrodes of dye-sensitized solar cells (DSSCs). The flexible DSSCs presented in this work was changed to be based on stainless steel (StSt) meshes and the mesoporous TiO2 films were fabricated by electrophoretic deposition (EPD) method which consists of repetitive short-term depositions with intermediate drying. The optimum efficiency was found by changing the TiO2 concentration of EPD solution and the potential difference between the electrodes. The experimental results show that the photovoltaic efficiency (η) of the DSSC with an active size of 1 cm2 is 3.25% under an electric field of 60 V/cm and a TiO2 concentration of EPD solution of 1.0wt%.
Experimental Study and Modeling of the Zinc Coating Thickness
Authors: Michal Peter , Gombár Miroslav , Vagaská Alena , Piteľ Ján , Kmec Ján
Published: June 2013

The effects of six factors, affecting during the acid zinc plating process as its technological conditions, on the thickness of the resulting zinc coating has been examined. In order to control the quality of the resulting zinc coating deposited on the surface alloy EN 355 at a constant current density of 5 [Adm-2], the mathematical model predicting the thickness of deposited coating was developed using Design of Experiments (DoE) method. The obtained mathematical model describes the resulting deposited layer of zinc coating in dependence on the factor-level changes and combinations with the reliability of 58.75%.
A Theoretical Model Research of Rice Water Stress Index Based on Automated Infrared Thermal Imaging
Authors: Cao Ming Chao , Zhang Wen Zhong , Han Ya Dong , Yao Chen , Wang Yi Tao , Ding Guo Hua
Published: June 2013

It detected the canopy temperature of rice via automated infrared imaging technology in the test under different irrigation condition, and used the CWSI theoretical model to diagnose whether the crop suffered water stress or not. It also analyzed the water stress index theoretical model of crop and other indexes on reflecting the water status of crop, including the relationship between the CWSI and leaf stomatal resistance, the CWSI and leaf net photosynthetic rate, and the CWSI and the soil moisture content. The results showed that the relations between the surface theoretical model and the above indexes were fine. It meant the CWSI well reflected the features of water stress of rice.
Effect of Wet Storage on Return Yellow Performance of High Yield Chemical Pulp
Authors: Xu Yan Ni , Sun Bing , Liu Yu Xin , Bao Li , Duan Yu Lan , Zhang Dong Fang
Published: June 2013

In this paper, the effect of residual chlorine of hypochlorite (H) on high yield pulping with H2O2/CoSO4 of wet stored bagasse was studied. Compared with control sample, the pulp of the bagasse wetstored with H or Ho (without residual chlorine) bleaching waste water had better pulping yield and the pulp optical property was lost seriously, but the pulp return yellow performance was control. If it had no requirement on the brightness or the pulp must be kept at the condition easy to return yellow, the wet storage with H or Ho bleaching waste water was a good method to improve the pulping yield, control the change of brightness and save clean water.
Rapid Identification of Microorganisms Isolated from Pickled Vegetables by MALDI-TOF Mass Spectrometry
Authors: Tan Zhi Lei , Wei Yu Qiao , Liang Shuang , Zhang Ran , Liu Miao , Jia Shi Ru
Published: June 2013

Matrix-assisted laser desorption/ionization time-off light mass spectrometry (MALDI-TOF MS) is increasingly used as a microbial diagnostic method for species identification of pathogens. However, MALDI-TOF MS identification of food bacteria was seldom reported. Ten strains isolated from different pickled vegetables were rapid identified by MALDI-TOF MS. The results of MALDI-TOF MS were confirmed by 16S rDNA sequencing method. Different score values in MALDI-TOF MS revealed nine Leuconostoc mesenteroides and one Staphylococcus. Identification success at the species and genus levels was 90% (9/10) and 100% (10/10), respectively.16S rDNA sequencing results showed that nine stains were identified as Leuconostoc mesenteroides and one was Staphylococcus saprophyticus. Results obtained demonstrate that MALDI-TOFMS is a promising method for discriminating and identifying food bacteria.
The Preparation of Micro-Molecular Dextran in Sub-Critical Water/CO2
Authors: Liao Shu Qiong , Peng Xiao Yu , Zhang Xue Wang , Huang Kelin , Wang Ben , Gan Ji Wen , Xie Qing Ruo , Nong Wei Jian , Li Ke Xian
Published: June 2013

Micro-molecular dextran was prepared in sub-critical water/CO2 by hydrolysis of dextran20. The obtained products were mainly characterized by FT-IR and GPC. Furthermore, the reaction temperature, reaction time, reaction pressure, solid-liquid radio and stirring speed were systematically investigated during the work. The optimum reaction conditions are as follows: the reaction temperature was 160°C; the reaction time was 60 min; the reaction pressure was 2.5MPa; the solid-liquid ratio was 0.6 and the stirring speed was 300r/min.
Research of the Grinding Mode Applied by the Cranfield BoX Ultra Precision Grinding Machine
Authors: Jiang Zhuang De , Yang Shuming , Wang Jin Long , Yuan Guang Tao , Long Xing Yuan
Published: June 2013

In this paper an efficient grinding mode which is employed by the Cranfield BoX ultra precision grinding machine is discussed. The equations of workpiece surface and grinding wheel surface are proposed and the grinding motion is simulated via Matlab. The trajectory of the changing cutting region is discussed. The simulation results show that this grinding mode is suit to manufacture low slope surfaces. Generally, the workpiece surface is steeper, and the cutting range of the machine is smaller. The angle of the spindle inclination, the grinding wheel width and the cutting depth should be chose properly for different manufacturing capacity.
The Discussion of the Relationship between Grinding Efficiency and Three Kinds of Factors in the Mill
Authors: Wang Chun Mei , Zhuang Gu Zhang , Wang Qing Hong
Published: June 2013

The Copper-bearing minerals Powder (≤2mm) is used in conical ball grinding, the experimental study shows that the effect of the three kinds offactors on grinding efficiency is obvious. In this paper, we will start from the pulp rheological perspective to discuss why this is. In the end, the optimal conditions include the best pulp density 70%, the best mill speed 86.33r/min and the best time 4 min.
Method & Case Study of Cutting in Offshore Structural Member Removal
Authors: Chen Yang Hou
Published: June 2013

This paper presents some cutting methods used in offshore structural member removal which be different from the traditional machining method used in forming a part. The author collects three species of cutting techniques which classified by energy and tools. A catalogue from the practical engineering application is listed, so as to give a better understanding of their characters. The author also gives detailed description of cutting techniques used in offshore steel structural below. And case study of cutting method is given to illustrate the application of it. The study in this paper makes the important reference for practical engineering application of offshore engineering.
Study on Short Stroke Control in Roughing Stage of Continuous Hot Strip Rolling
Authors: Ren Rui , Zhang Xiao Ping
Published: June 2013

According to process requirements of edge rolling in roughing stage of continuous hot strip rolling, common methods of short stroke control were analyzed. A 3D elastic-plastic FEM model for roughing stage of continuous hot strip rolling was established using ABAQUS/Explicit, and research on deformation law of plate head and tailwidth lossin different working conditions was done. Besides, control effects of broken line SSC method and polynomial SSC method were analyzed. On the basis of them, a new polynomial SSC model was established. The model is effective in controlling width loss of plate head and tail and is beneficial to improve the quality of plate in some degree.
Hot Forging Die Composite Manufacturing Technology
Authors: Li Yong Bo , Deng Jie Zheng , Yang Yang , He Jia
Published: June 2013

With the development of machinery and mold manufacturing industry, there is a great significance of using composite manufacturing technology on surface hardening products to improve the quality and longevity. With the example of hot forging the automobile brake supporting frames, this paper explores to introduce hot forging die nc welding method, aiming to reduce the forging manufacturing costs and improve the reuse efficiency.
Simulation Analysis of Four Teeth End Mill Cutting Process Based on the FEM Method
Authors: Wan Xiao Hang , Wang Jian Gang , Dong Zhao Wei , Shi Jian Ling
Published: June 2013

Based on FEM, the paper presents a reasonable four teeth end mill model to simulate the process of metal milling, which uses the adaptive meshing criteria.This model simulates a typical work-piece chip breaking process with different cutting speed and feed ratio, which gets the cutting forces curves and the total status of residual stress distribution.
Microstructures and Mechanical Properties of Al-12.7Si-0.7Mg Alloy Welded Joints
Authors: Wang Dong , He Chang Shu , Qi Zhen Yu , Wang Hao , Zhao Xiang , Zuo Liang
Published: June 2013

3-mm thick Al-12.7Si-0.7Mg alloy plates were cut from the hot extrusion profiles. A butt-welding joint was made by gas metal arc welding (GMAW). The microstructures and mechanical properties of welded joint were studied by scanning electron microscope and tensile test methods. The results show that weld bead with good appearance and internal quality was obtained under the optimized welding parameters. The ultimate tensile strength for base material and welded joints of hot extrusion Al-12.7Si-0.7Mg alloy are much higher than that of 6063 alloy in T4 condition.
Study of Precipitation in the Heavy Plate of VN Micro-Alloyed HSLA Steel
Authors: Li Nan , Li Ling Xia , Wang Chun Fang , Wang Zhe
Published: June 2013

In this paper the precipitations in the heavy plate of VN micro-alloyed steel has been studied. Pase analysis experiment has been done to study the precipitation character. The precipitations have been observed by TEM. Physicochemical phase analysis has been employed to explore the particle structure and the size distribution.
An Approach to Improve Thickness Uniformity of TA15 Tubular Part Formed by Gas Bulging Process
Authors: Liu Gang , Wang Ke Huan , Xu Yi , Wang Bin , Yuan Shi Jian
Published: June 2013

Gas bulging with local-stretching preforming is presented to form titanium alloy tubular part with small radius. In ordinary gas bulging process, local thinning occurs at the corners with small radius and produces dangerous position of the component. In the paper, a preforming process so-called local-stretching is applied before gas bulging. Finite element simulation and experiments were carried out to verify the effectiveness of the preforming and gas bulging process for the tubular component of titanium alloy TA15. During the local-stretching preforming, the material near the corner was kept almost rigid, but the material far away from the corner experienced stretching deformation and thickness thinning. Then, during gas bulging, the material near the corner experienced thinning deformation. So, the thickness uniformity of the final component was improved effectively.
Effects of Electrolyte Plasma Carbonitriding on Tribological Properties of High Speed Steel
Authors: Skakov Mazhyn , Rakhadilov Bauyrzhan , Sсheffler Michael
Published: June 2013

This paper presents research of influence electrolyte plasma carbonitriding on tribological properties of R6M5 high-speed steel. Shows perspectiveness of carbonitriding high-speed steels in electrolyte plasma. The results of research demonstrated increasing wear-resistance of R6M5 steel after carbonitriding in electrolyte plasma. Under the same test conditions by the method of scratch-test have been determined that the depth of the scar of a modified layer has become less in comparison with the original sample, which indicates a significant increase of wear-resistance and hardness of the surface carbonitriding layer R6М5 steel. It was set that after electrolytic-plasma carbonitriding abrasive wear-resistance of the surface layers of R6M5 steel is increased by 25%. Introduction
Laser Cladding Device for In Situ Repairs of Marine Crankshafts
Authors: Torims Toms
Published: June 2013

This paper presents the development and design of the laser cladding machine for marine diesel engine crankshaft in-situ repairs. The described technology and device is designed to perform crankpin journal build-up operations directly in the engine housing, without removing the crankshaft from the engine. Furthermore, this technology could be successful-ly combined with the subsequent final machining operation grinding. There is already equipment and technology in place for in-situ crankpin grinding operations. Both technological platforms can be combined to deliver the most appropriate output. For the very first time, this paper outlines the novel, in-situ concept of applying laser cladding to marine crankshafts. The principal design of the in-situ laser clad-ding machine is provided and is accompanied with a de-tailed description of the in-situ laser cladding machine construction. The proposed device and method satisfy ship-board crankshaft surface renovation needs and opens up an entirely new dimension for the industrial application of laser cladding technologies.
Study on Process Parameters of Low Frequency Torsional Vibration Tapping of Difficult to Cut Materials
Authors: Han Feng Qi , Li Zhi Zun , Zhang De Yuan
Published: June 2013

In order to provide references for the application of low frequency torsional vibration tapping, three typical difficult to cut materials 30CrMnSi, GH4169 and TC4 were selected to carry out experiments. Experiment results show that net cutting angle LT and backoff angle LG have great influence on tapping torque, and the process parameters should be selected reasonably according to material characteristics and combining with tapping efficiency. Larger LG and smaller LT should be selected for materials with small elastic modulus such as TC4. Smaller LG and larger LT can be selected for materials similar to 30CrMnSi. For materials similar to GH4169, parameters should be selected between that of TC4 and 30CrMnSi.
The Prickle and Pressure Comfortability Evaluation of T/R/H Multi-Component Fabric
Authors: Duan Ya Feng , Yao Jiang Wei
Published: June 2013

Most bast fibers and leaf fibers are harsh ,stiff and of high initial modulus, so the fabric made of them are prickling and difficult to go out of shape. The prickle and local stress of the fabric which are made of the blend of hemp, viscose and micro-porous polyester fiber were tested here, and the effect of the structure of the fabric on the prickle and local stress were analysed. It can be seen from the test result that the hemp content was not the most important factor to the prickle, warp and weft shrinkage and fabric count influence the prickle the most. As far as the local stress is concerned, he fabric pattern influence the stress transmission within the fabric obviously.
The Optional Study of Refined Feldspar Processing from Kyanite Tailings
Authors: Yuan Su Juan , Shen Zhi Yong , Lu Xiao Long
Published: June 2013

The low-grade feldspar from kyanite tailings were studied through the magnetic - Anti-flotation purification method. The ore grade of iron was decraded from 0.98% to 0.09% and e the various factors in the test was studied.
The Research and Evaluation of Double Excitation Inorganic Adjustable Plugging Agent
Authors: Liu Qing Wang , Wang Tao , Wang Ji Gang , Wang Jiao
Published: June 2013

Determine the best formula of the double excitation inorganic adjustable plugging agent: 15% slag + 0.8% activator + 4% dispersant + 2.5% retarder, with a curing time of 32h, and a curing strength over 1.4Mpa. The initial viscosity of adjustable plugging agent is 36mPa.s, and after curing for eighteen hours in 85 degrees Celsius , viscosity is less than 320mPa.s. For cores with different permeability, the water plugging rate of adjustable plugging agent is more than 90%.
The Influence of Cooling Water Flow to Purify the Metallurgical Grade Silicon by Directional Solidification
Authors: Lin Tao , Zhang Da Jun , Duan Chun Yan , Lu Dong Liang
Published: June 2013

Directional solidification is one of the most important processes to purify the impurities in the metallurgical grade silicon. A lot of factors could influence the result of directional solidification. In this paper, we researched cooling water flow which could influence the result of directional solidification. We have studied three data of cooling water flow which influenced the results of the removal efficiency of the impurities. Experimental results showed that cooling water flow can influence the density of dislocations and twins in the ingot. The metal impurities of Al, Fe and Ca were concentrated in the middle of the silicon ingot mostly. It was inferred that the bigger cooling water flow was better to the efficiency of the purification in the experiment.
Dynamic Stability Analysis of Steel-Concrete Composite Ribbed Shell
Authors: Kang Yong Gang , Chang Yu Zhen , Xu Ting , Kang Ying
Published: June 2013

Steel-concrete composite ribbed shell is a kind of shell structure based on the thin concrete shell, which has the advantages of two different materials, at the same time with steel nets shell and thin concrete shell structure. In this paper, the seismic performance of steel concrete composite ribbed shell is analyzed, in which the elastoplastic time-history analysis method is used to analyze internal force and deformation. Furthermore a parameter analysis is made to discuss the seismic performance, which considering different high-span ratio, section dimension, boundary conditions and structure division frequency. The influence on structure seismic performance and some structure dynamic response characteristics are obtained, which can be resulted for structural seismic design and referenced in steel-concrete thin shell design specification modification.
Interactive Analysis between Steel-Concrete Composite Deep Beam and Steel Frame
Authors: Liu Yuan , Zheng Hong
Published: June 2013

Steel frame filled with steel-concrete composite deep beam was suggested to meet middle rigidity demand between steel frame and steel frame-shear wall structure. Two quasi-static tests on steel frame filled with composite deep beam and one test on moment steel frame were conducted to demonstrate the effectiveness. The composite deep beam can supply suitable stiffness to the moment frame to form desired lateral resisting system and realize gradually changing of the stiffness from steel frame to steel frame-shear wall structure. The interactive analysis was adopted to calculate the distribution parameter of the shear force and moment between the composite deep beam and steel frame as reference for the design of the structure. The results give an effective method to assure lateral stiffness of the structure as well as provide suitable earthquake-resistant capability and dissipate seismic energy capacity by choosing the span-to-depth ratio of the composite deep beams. The outside reinforced concrete plate can restrain the buckling of the steel plate and make full use of the steel.
Study on Humanization Design of Overall Kitchen
Authors: Gu Yan , Gu Wan Li
Published: June 2013

Focus on ergonomics, humanization design of the overall kitchen reflects the trends of the overall kitchen design study on human design in the overall kitchen cabinets ,application to bring convenient and influence, focusing on "people-oriented"to improve the efficiency and operating comfort of the people, trying to design a safe, healthy, convenient, comfortable and beautiful modern the overall kitchen pantry environment.
Experimental Research on Hot Working Property of Monel K-500 Alloy
Authors: Zhang Xiao Ping , Chen Wen Zhang
Published: June 2013

Monel K-500 alloy is an important nickel-based corrosion resistant material with excellent corrosion resistant ability in various corrosion circumstances (include electrochemical and chemical corrosion) and good mechanical properties. However, Monel K-500 alloy is also a sensitive material to high temperature. Hot working process has significant effect on its working character and quality. In view of existing problems in domestic manufacturing enterprises, some experiments were carried out in different working temperature, deformation degree and strain rate to investigate the performance of Monel K-500 alloy in hot working process. The research results show that moderate temperature, higher strain rate and deformation degree will be favorable to improve crystal structure and mechanical property of Monel K-500 Alloy.
Ecological Development of Building Materials
Authors: Guo Qi , Liang Qiu Yan , Zhao Li Qiong
Published: June 2013

This paper elaborated eco-building-materials and life cycle assessment, proposed to follow in the eco-design philosophy of the construction, and focuses on the basic approach of building materials eco, including the ecology of the traditional building materials and high-tech research and development of eco-building materials. It pointed out the urgency and importance of the development of eco-building-materials.
The Standardization of Government Supervision Procedure in Construction Engineering Quality (Security)
Authors: Guo Han Ding , Wei Xing , Zhang Yin Xian , Hao En Hai , Lei Li Zheng
Published: June 2013

Government supervision in construction engineering quality (security) is the government enforcement supervision, whose seriousness; legality and authority are on basis of an orderly supervision procedure. We should ensure the standardization of implementation plan for supervision early days and strengthen the standardization of implementation process in mid-term, even control the standardization of implementation results later period. To sum up, it includes handling supervision procedures strictly, choosing supervisory personnel scientifically, defining supervision scheme reasonably, informing supervision parts definitely, listening to the subject reports seriously, choosing selective examination project randomly, implementing site inspection, uploading supervision records timely, issuing treatment notice directly, completing supervision report form etc. To standard surveillance behavior via scientific and reasonable supervision procedure, it could improve the validity of monitoring and high efficiency, and achieve the scientific nature and purpose of government supervision procedure in construction engineering quality (security).