bluuebunny/crossref_metadata_2025 huggingface dataset:
Electrochemical Properties of Asymmetric Supercapacitors in Potassium Hydroxide Electrolyte
Authors: Huang Guang Xu , Xing Bao Lin , Zhang Chuan Xiang , Chen Lun Jian
Published: February 2012

Three kinds of activated carbons were prepared from Taixi anthracite by NaOH activation. As-obtained activated carbons were adopted as electrode materials to construct asymmetric and symmetric supercapacitors. The electrochemical properties of as-constructed supercapacitors in aqueous electrolyte (3.0M KOH) were investigated. Results show that the asymmetric supercapacitor assembled with activated carbon of a higher specific surface area (SBET) as the positive electrode exhibits better ion diffusion behavior and higher cell gravimetric specific capacitance (Cg). This is different from the case in non-aqueous system, mainly because pseudo-capacitance rather than double-layer capacitance has a more important effect on Cg in the aqueous electrolyte. Namely, the wettability and pseudo-capacitance of activated carbons decrease with increasing mass ratio of NaOH to anthracite, which is more prominent for activated carbons used as negative electrode materials.
Reliability Analysis of a Cold Standby System under Progressive Type-II Censoring Date
Authors: Li Feng
Published: February 2012

the exact confidence interval estimations and the approximate confidence interval estimations of the reliability indexes for a cold standby series system are investigated under progressive type-II censoring date, the formulae to calculate the exact confidence limits and the empirical Bayes approximate confidence limits of the failure rate, and the reliability function and average life are given. In order to investigate the accuracy of estimations, an illustrative example is examined numerically by means of Monte-Carlo simulation.
Higher-Order Nonlinear Discrete Approximate Iteration on the Continuing Dynamic Programming
Authors: Zhang Peng , Zhou Jing Yi
Published: February 2012

In order to solve the “dimension curse” and higher-order nonlinear, the paper proposes the discrete approximate iteration, and uses it to solve the continuum dynamic programming. Firstly, according to the network method, discretizes the state variables and transforms the model into multiperiod weighted digraph. Secondly, uses the max-plus algebra to solve the minimal path that is the admissible solution. At last, based on the admissible solution，we continues iterating until the two admissible solution is near. The paper also proves the convergence of the method.
The General Embedded Kernel Simulation System Model
Authors: Yang Xiao Han , Suo Di , Wen Fuan
Published: February 2012

According to in-depth study of embedded system architecture and working principles, this paper proposes an embedded kernel simulation system model – Device Operation Interface (DOI) model based in the computer simulation theory. Furthermore, an embedded 8051 simulated kernel is designed and developed based on this model. The 8051 simulation system achieves loading, compiling and linking the C language source file, simulates the process of 8051 command execution and displays the results through interfaces. The DOI model contributes to the reuse in different experimental simulation platforms
Research on TD-SCDMA System Based on Joint Detection and Smart Antenna Technology
Authors: He Hong , Li Dan , Yang Tong , He Lin
Published: February 2012

Channel estimation of TD-SCDMA is inaccurate if Joint Detection is separately used in anti-interference progress, and when the number of users or channels increases, amount of calculation is large, real-time control is hard to implement too; if Smart Antenna is only adopted, the formed beam which points to the user is likely to interfere other users. Especially for high-speed mobile users, beam forming bias exists. To solve this problem, combination of Joint Detection and Smart Antenna is proposed in the paper. Simulation results show that the combination not only improves capacity of system remarkably but also eliminate the multiple access interference (MAI)
Research on Health Function of Silk Fiber
Authors: Lu Wei , Yang Xiao Ming
Published: February 2012

Based on researches, silk fabrics have certain health and medical functions. This thesis discusses the different fibers’ structures, and showed that human’s comfort of silk fabric depend on the structural features and hygroscopicity of silk fiber. Also this thesis explores the anti-bacterium and thermal conductivity of silk fiber. The comfortable health functions of silk fabric are based on natural properties of silk fiber.
Miniaturization of a Wide-Band Planar Spiral Antenna by Adding Vias
Authors: Deng Li , Li Shu Fang
Published: February 2012

A simple technique to reduce the lateral size of the wide-band planar spiral antenna is presented. It is implemented by dividing the conventional spiral patch into a different number of segments and placing them on different sides of the microwave substrate with vias as the connections. Two rectangle spiral shaped planar spiral antennas were fabricated and measured to demonstrate the capability of lowering the initial resonant frequency by adding connecting vias. According to results, the initial resonant frequency of the proposed antenna has been shifted from 2.4GHz to 1.6GHz; in other words, the antenna size can be reduced to 56%, approximately
Wenzhou D-Prefaced Trains Accident and China Work Safety Early Warning Information System Based on Dynamics
Authors: An Hong Chang
Published: February 2012

This paper illustrates China Work Safety Early Warning Information System on the basis of some major and significantly major accidents and special Wenzhou D-prefaced trains accident. Structure and functions of China Work Safety Early Warning Information System are shown. Weaknesses of China Work Safety Early Warning Information System are also pointed out. Some improvement of China Work Safety Early Warning Information System is anticipated.
Synthesis and Photocatalytic Property of BiVO4 Photocatalyst by Cotton Fiber Template Method
Authors: Wang Min , Luan Hai Yan , Liu Qiong
Published: February 2012

BiVO4 hollow nano-fiber photocatalytic material was prepared via two steps method of soaking and thermal transition using the cotton fiber as the template. The as-prepared samples were characterized by XRD, SEM and BET. The photocatalytic activity under visible light was evaluated by photocatalytic degradation of methyl orange(MO) in the solution. It was found that the samples calcinated at 400°C for 3.5 h had the hollow tube structure which is the copy of the cotton fibre structure and had the best photocatalytic activity. The decolorization rate of methyl orange can reach to be 97 % or so, increased 16 % than that of sample that prepared with no cotton fiber template. It indicated that the sample’s morphology and the specific surface area was the main reason of higher photocatalytic activity.
Method of On-Machine Spacing-Tooth Measuring Large Gear Pitch Accumulated Errors and Technology of Compensating a Geometric Eccentric
Authors: Li Wen Long , Wei Li , Li Min
Published: February 2012

The method of on-machine measuring pitch accumulated errors of large gears is much convenient and there are no dimension limits of measured gears. The technology of non-synchro-drive and synchro-measurement is utilized to ensure continuous measurement. The spacing-tooth method of measuring pitch accumulated errors of large gears is used to decrease measuring errors. The technology of compensating a geometric eccentric is applied in data treatment, and the high accurate measurement is carried out
The Design of Embedded Systems GUI Message Based on Mobile and Intelligent Materials
Authors: Zhou Shu
Published: February 2012

Research and development of embedded systems is the hot information technology and the graphical user interface (GUI) is the most important part of human-computer interaction interface. These embedded GUI system has been widely used because of its strong and powerful functionality. But many times , it is necessary to sacrifice performance for its versatility. In this paper, the embedded GUI systems based on the message mechanism is study considering the short of current embedded GUI systems. The novel method of a message-driven application framework is suggested to solve the problem of the current message mechanisms for the implementation. Meanwhile, a circular queue algorithm is given in order to achieve messaging unit. Then, the message has been classified considering of efficiency. In the end, the design example of personal assistant is given.
Strain State Evolution and Thickness-Dependent Properties of Epitaxial La0.7Sr0.3MnO3 Thin Films
Authors: Meng Ying , Lu Shi Bin , Gao Juan
Published: February 2012

La0.7Sr0.3MnO3(LSMO) films 35-350nm thick have been grown on (001)LaAlO3 (LAO) substrates. The strain state evolution was examined fully by x-ray reciprocal space maps, in order to clarify its impact on the thickness-dependent properties of the films. It was found that LSMO epitaxial films have properties which is from partially strained to fully relaxed with film thickness increasing on the same substrate. Resistivity measurement shows that the relaxed film has higher resistivity than that of the strained film, because the relaxed film contains the high deficiency density. In this paper, however, the relaxed property of the same thickness LSMO epitaxial film grown on the different substrates is also discussed.
Axisymmetric Finite-Element Analysis for Interface Migration-Controlled Shape Instabilities of Plate-Like Double-Crystal Grains
Authors: Huang Pei Zhen , Zhang Zhou Zhou , Guo Jian Wei , Sun Jun
Published: February 2012

An axisymmetric finite-element method is developed to predict the evolution behavior of microstructures by interface migration. The formulation of the method is conducted on the basis of the energy principle during the interface motion. The computations extend earlier models by accounting in detail for the effects of grain-boundary energy, surface energy and chemical potential difference. The eventual shape of the plate-like double-crystal grain depends on both the initial β and the thermal grooving angle Ψ. For a given β, a critical Ψcexists. When Ψ>Ψc, the eventual shape is one made of two sphere segments with a thermal groove. When Ψ≤Ψc, grain splitting along the grain boundary occurs, and the splitting segments evolve into two spheres, respectively. Both the spheroidization time and the splitting time increase with Ψ and β increasing. The volume shrinkage rate decreases with increasing Ψ.
Affection of Twist Factor and Blended Ratio to the Strength of Soybean Protein Fiber Blended Yarn
Authors: Yang Qing Bin , Zhang Yu Qing
Published: February 2012

The soybean protein fiber is one of the green fibers. It is blended with the fine polyester. The strength of the blended yarn is tested. The relation between the strength and the twist factor and the blended ratio is analyzed. The optimum blended ratio and the critical twist factor is determined.
The Strength and Elasticity of Soybean Protein Fiber/Combed Cotton Blended Yarn
Authors: Yang Qing Bin
Published: February 2012

In order to describe the relationship between the elasticity and the strength and the blended ratio of soybean protein fiber/combed cotton blended yarn, the strength and elasticity of different kinds of blended ratio of soybean protein fiber/combed cotton blended yarn was measured. The relationship between the strength and the blended ratio of blended yarn is not in accordance with the simple model. With the increase of the blended ratio of the soybean protein fibers, the strength and the elasticity of the blended yarn increased.
Research and Design of the High-Performance Cluster Architecture Based on the MySQL and NoSQL
Authors: Zhang Yong Qiang , Li Wen Ming
Published: February 2012

This paper aims at improve the MySQL relational database in the high concurrent read and write to the database, the high efficiency of mass data storage and access, database scalability and high availability aspects of the performance, presents a the High-performance Cluster Architecture Based on the MySQL and NoSQL. Use the MySQL on the advantages of relational data and the NoSQL on the advantages of storage areas for enterprise to save the development costs and maintenance costs. The combination of the MySQL and NoSQL has brought new ideas for the database development of web2.0.
Heat Balance Calculation of Chromium Ore Smelting Reduction Process in a Converter
Authors: Liu Yan , Jiang Mao Fa , Wang De Yong
Published: February 2012

The heat balance calculation of producing stainless steel crude melts by chromium ore smelting reduction in a 150 t converter is carried out by use of the empirical data and the calculation method of refining plain carbon steel in a converter, according to the blowing conditions of 185 t smelting reduction converter of No.4 steelmaking shop in Chiba Works of JFE Steel. In the heat balance calculation, the heat consumption is calculated according to the actual reduction process in the converter and the thermal efficiency and the coefficient of thermal energy of smelting reduction converter are calculated. The calculation results show that the thermal efficiency η is 60.143% and the coefficient of thermal energy KT is 71.743%. The calculated relative error of heat balance is 0.019%. Heat balance calculation is an important part of the converter smelting process calculation, and it is extremely significant in the pursuit of the converter production of high quality and low energy consumption.
The Arithmetic and Its Implementation of the Long Sequence Linear Correlation Based on TMS320C54x DSP
Authors: Yu Zong Zuo , Wang Jing Feng
Published: February 2012

This paper introduces arithmetic to calculate correlation of two long sequences by using fast correlation method, and the design method of the FFT coefficient table using DSPLIB library function. Using this method, the author accomplished the linear correlation operation of two 1024-dot real sequences on the platform of TMS320C54x DSP. Compared with direct correlation, this method is easier, rapider and more practical
The Design of Mine-Used Infrared Radiation Thermometers Shell for Electromagnetic Shielding
Authors: Li Li Ming , Chen Ying , Lu Wei
Published: February 2012

Mine high voltage power supply equipment on the hot temperature is too high, easy to cause the gas explosion accident, however the hot spot monitoring infrared thermometer surrounding is the existence of a large number of induced magnetic field,which influenced the temperature measurement accuracy, According to the infrared thermometer casing electromagnetic leakage, the shielding enclosure material of the infrared thermometer selected silicon steel, lens window electromagnetic leakage has become the main cause of the decline of electromagnetic shielding effectiveness. In the lens window with ITO film, after the simulation the shielding effectiveness achieves grade 50dB or above to meet the requirements of shielding effectiveness, and that improves the accuracy of temperature measurement.
Geometrically Non-Linear Analysis of Composite Shell Structure Deformation
Authors: He Yan , Li Zheng Jian
Published: February 2012

At present, the shell structure is broadly used in the engineering field, and the finite element method is the main method to analysis of the structural design. Because many variables are used in the finite element method and the computation is complex, this paper used Bezier surface patches as the admissible displacement fields to represent the shell’s middle surface displacement and rotation components, the deformations of the composite shell under the loads are studied with a Semi-analytical procedure. The results show that semi-analytical and analytical procedure are in good agreement with the results of the analysis, it can be applied in the project.
Improved Design of Thin-Walled Square Tube for Energy Absorption
Authors: Wang Jian , Sun Hong Tu , Huang Jing
Published: February 2012

Thin-walled tubes are the main structures to absorb the energy in front impact at the desired controlled collision. A thin-walled square tube is designed by use of a double deck square tube with clapboards which has a stable structure with less Euler deformation in front impact. More deformations of extensional collapse in the double deck square tube with clapboards improve the performance of structures for energy absorption. Induced slots are employed in the square tube to decrease the peak acceleration in front impact. Collision process can be controlled by the slots for the stable deformation and reduced initial peak acceleration
The Application Study of Speciality Paper in Architectural and Interior Designs
Authors: Yang Xiao Ping , Hu Wei Ping , Ouyang Wei Jia
Published: February 2012

Certain development has been achieved in the application of speciality paper as materials in architectural and interior designs, but it is rare so far to use it as main design materials. This papers discusses the application of speciality paper in architectural and interior designs, and as important materials, speciality paper is to become a trend in the design fields in the future, which is significant in aspects of improving people’s living environment and environmental protection.
Electrochemical Study of the Additive-Effect on Sn Electrodeposition in a Methansulfonate Acid Electrolyte
Authors: Long Jin Ming , Zhang Zhu , Guo Zhong Cheng , Zhu Xiao Yun , Huang Hui
Published: February 2012

The effect of three organic additives in stannous methanesulfonate baths on cathodic overpotential and Faradaic impedance of tin-electrodeposition were studied by measuring cathodic polarization curves, galvanostatic responses and electrochemical impedance spectroscopy. The results show that the composite additive consisting of three organic compounds can significantly increase the cathodic polarization, crystallization overpotential and charge transfer resistance, which is very beneficial to improve coating quality and result in a fine-grained and smooth matt tin coating.
Simulation of CDMA System Used in 3G Mobile Communication Based on Communication Materials
Authors: Xiao Bing Gang , Xie Zhi Yi , Ye Peng
Published: February 2012

CDMA is the abbreviation of Code Division Multiple Access which is a kind of new and mature wireless communication technology. The CDMA system Used in 3G mobile communication is simulated using the MATLAB software here. A CDMA2000 base station transmitter is established using the Simulink tools. Each module is initialized in order to achieve the simulation of a base station transmitter of the cdma2000. The whole process of producing singals is simulated by the fundamental reverse channel. The simulation results are compared with theoretical conclusion, proving that the simulation method is very effective.
Level Set Based Modeling of Electrowetting on Dielectrics Droplet
Authors: Chang Yin Xia , Zhang Si Xiang , Zhou Wei , Liu Bao
Published: February 2012

This paper discusses the modeling of Electrowetting On Dielectric (EWOD) device that moves fluid droplets through surface tension effects and electric force. Instead of using a static contact angle as most papers did, we take the dynamic contact angle into count by using expression proposed by Voinov and Tanner. Firstly, the level set model and its initial values is present. Then the governing equations are discussed, and the diffused format is adopted for density and viscosity varies to smooth over the interface. The detailed expression for surface tension and electric force are also described for Navier–Stokes equations. After presenting the boundary conditions, the steps of numerical implementation are detailed.
State of Charge Estimation for Lithium Batteries in EV
Authors: Yu Yang , Dong Wen , Long Ze , Hong Min
Published: February 2012

The accurate estimate to remaining power of the lithium battery has a very important significance to continued operation of the electric vehicle. Based on the electrochemical mechanism of lithium batteries during charge and discharge, by using the genetic algorithms to determine the weights of the SVM network, a combination algorithm is applied to estimate state-of-charge and the initial condition of network is optimized and has less error to the network. The simulation results show that the optimization network has higher precision for lithium battery SOC forecast method and can be used to estimate the lithium battery SOC value of the electric vehicle
A Noise Eliminating Method of DCSK System Based on Multi-Layered Noise Control Materials
Authors: Wang Zhen Chao , Zhang Shi Bing , Liu Yuan Yuan
Published: February 2012

This paper proposes a new chaotic communication scheme which is developed from Differential Chaos Shift Keying (DCSK), named reversed-phase overlay DCSK. Different from DCSK, at the receiver of the improved scheme the first and the second half-symbol signals within a code period are reversed-phase overlapped before the correlation operation. Both the theoretical analysis and the simulation results show that the proposed scheme can effectively suppress the noise and improve the BER performance of DCSK if the channel noise in the first half of a code period and the second is positively correlated. The proposed scheme can be applied to the communication systems suffering with colored noise, such as Low-voltage Power Line Communication(L-PLC) system
The Auto Car Power Testing Error Analysis with Vehicle Chassis Dynamometer
Authors: Gu Jun , Xu Yuan Qiang , Cheng Qi
Published: February 2012

Based on actuality, the text puts forward a point of view that the testing error is the main reason of Vehicle Chassis dynamometer low utilization rate. The large errors influencing factor is analyzed and the suggestion and measure about how to improve is put forward.
Research on Heating Element of the Air Heater in the Industrial Practice
Authors: Liu Wei Sheng
Published: February 2012

The article introduces a high efficiency heating element of the air heater used in the industrial machine area, which can be used for high power low volume high efficiency air heater. The traditional air heater normally use tubular heating element or nickel-chrome alloy resistive wire wrapped around the mica rack as the heating element. Due to the constraint of the surface load, the power cannot meet the requirement of the industrial machine practice. Meanwhile, the movable air heater has special requirement for the volume and the power. Secondly, the metal sleeve heat resistance wire cannot release heat in the short period, and the life span at high temperature is relative short, this also restraint the heating temperature. The energy loss is quite significant due to the longer heating period. The higher power industrial air heater can effectively solve all the above mentioned problems.
Single-Primary-Winding Voltage-Fed Double-Input Push-Pull Converter
Authors: Wang Qin , Xu Yuan , Xiao Lan
Published: February 2012

Multi-input push-pull converter with multiple-primary-winding is suitable in low and medium-power applications. However, with the increase of input sources, the number of the primary windings and switches increases as well. Based on Pulsating Voltage Source Cells (PVSCs) combination principle, this paper replaces the input voltage source of the single-input push-pull converter with the series or parallel-connected non-isolated pulsating voltage source cells (PVSCs). Thus a family of single-primary-winding (SPW) voltage-fed multi-input push-pull converters can be proposed. Compared with traditional multi-input converters, they have a form of single-Primary-Winding, and therefore we could greatly reduce the size and cost. Since the configuration of a double-input Buck dc/dc converter is very simple, it is chosen as an example in this paper to analysis this MIC. The operation principle and control strategy are illustrated. Finally, simulation and experimental results are presented to verify the correctness of theoretical analysis
Experimental Study on Electrical Conductivity of Carbon Fiber Reinforced Concrete Underwater
Authors: Wang You Zhi , Xu Yong Zhi , Sun Ying
Published: February 2012

This paper studied the effect of carbon fiber dosage, concrete age, size of defect, and eater pressure on the electrical conductivity of carbon fiber reinforced concrete (CFRC). Insulating films were buried in the concrete to simulate inside cracking. The carbon fiber was added as the conductive material of the concrete. The electrical conductivity was measured with a two-electrode method with a DC power. The test results show that concrete age, defect area and the external water pressure are the main factors influencing the electrical conductivity of CFRC, while the number and location of defects have less effect.
Research on Error Compensation by Semi-Closed Loop Control for a 3-UPS Parallel Machine Tool
Authors: Guo Jian Ye , Shi Jia Shun , Zhao Liang
Published: February 2012

This paper took a 3-UPS Parallel Machine Tool (PMT) as the object of research; it mainly introduced the process of establishing the compensation strategy for this PMT. Firstly the kinematics equations on driving chain and constraint chain was established on the basis of kinematics analysis. Then according to the structural characteristics and the results of kinematics analysis, the error compensation strategy of feedback correction type with the semi-closed loop control mode was used in the error compensation for this PMT by the method of installing respectively the encoders on the each joint of parallelogram mechanism, namely the compensation way of “parallel driving and series feedback” was adopted. Finally this paper has also deduced the theoretical model of error compensation. The research results in this paper provided a theoretical basis for realizing error compensation of this PMT, and had important practical significance for improving machining precision of PMT
Study of the Crack Propagation for Particles Reinforced Composite Materials with Different Inclusion Distribution
Authors: Deng Da Zhao , Luo Ji Xiang
Published: February 2012

Based on the Voronoi cell finite element can also reflect fiber reinforced composites interface to take off the layer and matrix crack propagation of the new cell (X-VCFEM cell)[1]. Combined with the re-mesh strategy and grid dynamic technology, Simulated analysis in different inclusion distribution, interface crack propagation for fiber reinforced composites, the results show that for the model with multiple Voronoi cell, The horizontal tension was the largest; For only a Voronoi cell, The size of the horizontal tension was little change.The result was very important reference value for manufacturing process and engineering application of fiber reinforced composite materials.
Surface Image Edge Detection Algorithm Based on Grey Relational Analysis
Authors: Li Gang , Fang Ying , Tong Ya La
Published: February 2012

Automatic detection of pavement cracks is one of the very hot topics. For the characteristics of “small data, poor information” in the surface image processing, we construct ed a grey image relational model to characterize the local image edge feature, by selecting the appropriate threshold to extract the edge of appropriate level. Finally, simulation experiments show that the new algorithm can effectively improve the road edge detection results, and it is an effective good method worthy further study.
Empirical Research Forecast Based on Coal Production in Inner Mongolia
Authors: Ma Jun Hai , Zhang Bo
Published: February 2012

Inner Mongolia Autonomous became the first coal-producing province for consumption in 2009. Thus forecast for such resource in an economic development is relevant. This research work investigates several forecasting methods used to predicl the total output of raw coal that scholars at home and abroad have outlined based on the coal production in Inner Mongolia Autonomous Region. We tried to study the differences obtained in various results, discusses its merits and demerits that will serve as a guide to analyzing various methods and proposes a reliable solution to predict future results for coal production in the above mentioned region.
Realization of NURBS Surface CNC Machining Simulation in Matlab
Authors: He Wei , Ren Min , Tan Ying Qi
Published: February 2012

This paper presents a method of realization of NURBS surface CNC Machining simulation in matlab, including NURBS surface production, tool path generation, discrete surface and simulation model construction and CNC machining simulation realization.
Light Ray Optimization Algorithm Based on Annealing Strategy
Authors: Shen Ji Hong , Li Jia Lian
Published: February 2012

Based on Fermat’s principle, a new intelligent algorithm named light ray optimization was proposed for solving nonlinear optimization problems. The algorithm has the advantages of simple structure, few tuning parameters, and easily tuning. Compared with the other intelligent optimization algorithms, it has the strong ability to search globally, but poor local search ability. To solve this problem, simulated annealing strategy was introduced to light ray optimization, and a new hybrid optimization algorithm was put forward. The new hybrid algorithm enhances the ability of local searching of light ray optimization in the later searching period. The simulation results indicate that the new algorithm has better convergence probability and speed than light ray optimization, and the searching success rate of it is basically equal to that of simulated annealing algorithm.
Heuristic Search with a New Operator Based Krisch Combination of Image Edge Detection
Authors: Ni Jian , Li Yu Duo
Published: February 2012

This paper designed a new edge detection[1,3] operator based on Krisch edge detector and direction encoding and combining the local average, while proposed heuristic search algorithm in the noise image based on segmentation edge of the self-enhanced. First, use small-scale Gaussian filtering in the noise image, and then use this edge detector for edge detection, and trajectory of each sub-search self-reinforcing, and finally according to the degree of self-reinforcing accumulation of noise to obtain the image edge. The results show that: This algorithm can effectively extract the real object from the noise, and to maximize the retention of details. And the performance better than Krisch and has some speed advantage
Study on Training Models of Project Managers in Engineering
Authors: Liu Ling , Cao Jian Peng
Published: February 2012

At present the training models of project managers in our country are not up to standard and the managers’ qualification as well as the capability can not satisfy the objective requirement of project management development of construction. This article makes construction enterprise project manager as an object, analyzing the problems in personnel training, setting up a new training model, optimizing the training scheme, providing method and support for bringing up managers.
Development of the Telecar for Emergency Project
Authors: Zhang Wei Chun , Ma Bing Bing , Pei Bao Hao , Du Xian Bin , Chen Jie
Published: February 2012

This paper designed a telecar for emergency project. It introduced the structure and the work principles of the telecar. It also carried an improvement design on running gear and the work equipment, so it can be wireless-controlled by the remote control system to avoid the danger of the direct operation. The remote-controlled system has the advantage of fast response, routing flexibility, integration control can be achieved and linked with a computer. To meet various need of working conditions, the performance test of engineering vehicle was carried out. Results show that engineering vehicle meet the design requirements of the operation in a variety of hazardous working condition.
Analysis of the Longitudinal Settlements of Tunnel with the Soft Layers in Substratum Soil
Authors: Yang Qian
Published: February 2012

The 3D finite element model on the interactions between soil and lining was established based on the Mohr-Coulomb Model. Different operation conditions were used to analyze influence on shield tunnel settlement in soft soil, such as difference in properties of substratum soil of tunnels. The deformation discipline of tunnels was achieved. The calculation results show that: the maximal settlement is linear functions of the elastic modulus of the soft layer.
A DFT Strategy for an Industrial Communications SoC with JTAG
Authors: Liu Yi Zhuo , Yin Ke Xin , Liu Gang , Sun Hui Ran
Published: February 2012

In this paper a system level DFT strategy with JTAG is presented to test an industrial communication and control SoC . A SoC generally integrates that microprocessor, memories, some function blocks, PLL, D/A, A/D, etc. Cores originating from different sources need different test strategies. The different test techniques are used in testing of core-based SoC system which combines scan chains, Memory-BIST and Boundary-Scan. A SoC test with JTAG architecture is implemented through a real life case (0.18µm, million gates chip). The test pin counts are reduced, test time for board test is shorter and high test coverage is achieved.
The Study of Methods and Trends of Icon Design
Authors: Song Fang Hao
Published: February 2012

Combined with the aspects of standardized, user-friendly, artistic examples, the purpose of this paper is to analyze the major factors involved in computer graphics design process, to explore methods and trends of icon design, which provides useful references for icon designers.
Vegetation as a Material of Roof and City to Cool down the Temperature
Authors: Sun Chen Yi , Lee Kuei Peng , Lin Tzu Ping , Lee Soen Han
Published: February 2012

A large amount of research has been published in Taiwan on the reduction of the urban temperature for different strategies. The most important strategy for reducing ambient temperature is increasing green roofs or green spaces in city. For analyzing the effect of the vegetation on the thermal environment, this paper collects temperature and humidity data from two building roofs, one park and two streets which are located within same area and tries to analyze the thermal influence of vegetation in study area. The result of this research shows that the maximum cool effect of green roof was -1.60 °C and the maximum temperature difference between park and street was -2.00 °C. Therefore, it can also provide useful data to governments for calculating the environmental benefit if they carry out a green space and green roof policy.
A Study on Changing of Minangkabau Houses from Sumatra to Malay Peninsula
Authors: Ng Teow Ngak , Lin Hsien Te
Published: February 2012

Minangkabau house is one of the most particular houses in Southeast Asia. The uplifted rooftop as the shape of buffalo horns, and large-scale single pile house are its main features. From the 17th to 18th century, Minangkabau people in Indonesia migrated massively from the Pagarruyung area of Sumatra to the state of Sembilan on Malay Peninsula. They brought with them the system of a matrilineal society (Adat pepatih), but there was not a complete transplantation of their particular house. This research conducts field investigations on Minangkabau houses in there two areas and analyzes the reasons of the change and major influential factors. The results show how Minangkabau houses transfer from large single pile house into extended small grouped pile houses, which has become another kind of vernacular houses in Malay Peninsula.
Research on Statistic-Based Image Segmentation Method
Authors: Hou Yi Min , Zhang Chun Ting , Lai Xiao Yan , Di Jian Ming
Published: February 2012

The paper researched the image segmentation method based on statistic. For the multiple class segmentation, the K-means segmentation was employed in the first part. The segmentation method named OTSU is discussed in the second part of this paper. To solve the problem of the image noise, the method based on the Markov Random Field (MRF) is proposed in the third part of the paper. The ICM optimization algorithm is used in the procedure of MRF segmentation. In the experiments part, the methods are compared with each other, and the results showed that the method based on MRF are more efficient to remove the noise in the images.
Study of the Flow Characteristic in Parallel Pipeline Model
Authors: Zhang Wei Wei , Yan Su Ying , Xing Su Fang
Published: February 2012

A single-phase flow CFD model is presented for predicting the pressure and flow distribution in parallel connected manifolds. The validation of the proposed CFD model is tested by its application to simulate flow behavior in intake and exhaust conduits. The simulated results are compared with the experimental data by Luo et al. and satisfactory agreements are found between the simulations and experiment. Using the proposed CFD model, the influences of flow rate, inner diameter ratio ψ and ψ0 on the flow distribution were investigated. From the simulated results, it can be found that non-uniform flow distribution is dependent on the flow rate in conduits. It is also found that inner diameter ratio play an important role on flow distribution. Proper flow rate and inner diameter ratio chosen will improve the uniformity of flow distribution.
A Color Management Method for Photographed Image Files
Authors: Ye Han Kun
Published: February 2012

Color management method for photographed image files is the key to guarantee the color consistency in the succedent image production. Based on machine learning a new color management method for photographed image is advanced in the paper. First, the method selects the color shade districts of IT/8 color target as experiment sample and is taken to stand for the color space to decrease the calculation of the model. Second the method pretreats sampled data to a unitary field to satisfy the scope requirement of the input and output data of the BP neural network. Third, the active item which can adjust BP model step dynamically is used to increase convergence speed of the BP model. Finally, the experimental results indicates that the method can improve color conversion accuracy and can satisfy the engineering requirement in color management for photographed image files.
Hybrid Spectral Clustering Algorithm and its Application in Cost Index Estimation
Authors: Chen Bing , Hu Xue Qin , Wang Bei Zhan , Zheng Yin Huan
Published: February 2012

This paper proposed a new hybrid spectral clustering algorithm in which Mean Impact Value (MIV) was used in the cost dimension reduction. The processing of system implementation is as follows: first, we used BP neural network to determine the principal items materials, and then applied the spectral clustering algorithm to calculate the principal items price according to principal items materials; finally, principal items ratio estimation method has been used to do cost estimation. This paper took the Xiamen project cost station as the actual case and experimental results shown that this algorithm could meet the cost requirements of project cost station both in time efficiency and accuracy through parameters self-adjusting.
Design of the Video Image Acquisition System Based on ADSP-BF561
Authors: Wang Qing Hui , Xue Hua Ping
Published: February 2012

This Article design a video image acquisition system implementations which is based on ADI Corporation Blackfin561 DSP , using OV7660 CMOS image sensor for the video input source and advanced JPEG2000 image compression algorithm under the operate system of the uClinux. It achieves a video image acquisition, processing and transmission. Test results show that the PC side you can see clearer images.
Optimization of the Hot Forming Processes for the Connecting Rod
Authors: Chen Xia , Yi Yang , Chang Qing Ming , Zhang Yun Xiang , Liu Sheng
Published: February 2012

A three-dimensional thermo-mechanically coupled FEM-simulation of the production of a connecting rod has been performed between dies (pre- and final-forging). According to the part’s characters and its dimensions, a hammer die forging process was determined. According to the hammer die process, three-dimensional connecting nod model was built in UG software and two different cases for pre-forging was designed. Different forming case was simulated by Deform-3D FEM program, the effective stress field and effective strain field were analyzed by comparison; it proved that optimized performing process was reasonable and can be used as reference in production.
Taipei Beautiful: How Does Government Policy Affect Architectural Engineering?
Authors: Juan Yi Kai , Kuo Fan Sheng , Perng Yeng Horng
Published: February 2012

Globalization and urbanization encourage city policymakers to deal with more challenges and opportunities for the sustainable future. Creating an attractive cityscape surly can increase urban competitiveness. Taipei City is now composed of complex urban systems chaotically enclosed by existing and new urban environments. The city government is attempting to re-shape its cityscape by implementing a series of city regeneration plans and provide new guidelines for architectural engineering, namely “Taipei Beautiful”, considering the improvement of urban landscape, greenery open space, built environments, sustainable campuses and public facilities. Although Taipei Beautiful is an ongoing project, achievements of the current stage have revealed potentials to significantly increase the number of tourists, decrease energy consumption, and promote economic benefits. This study presents an overall review of policies and engineering actions enacted by the city government. Difficulties, challenges, and the role of the city government in affecting architectural engineering are also discussed.
The Presentation of Biorthogonal Non-Tensor Trivariate Wavelet Wraps in Besov Space
Authors: Hua De Lin
Published: February 2012

In this paper, the concept of orthogonal non-tensor bivariate wavelet packs, which is the generalization of orthogonal univariate wavelet packs, is pro -posed by virtue of analogy method and iteration method. Their orthogonality property is investigated by using time-frequency analysis method and variable se-paration approach. Three orthogonality formulas regarding these wavelet wraps are established. Moreover, it is shown how to draw new orthonormal bases of space from these wavelet wraps. A procedure for designing a class of orthogonal vector-valued finitely supported wavelet functions is proposed by virtue of filter bank theory and matrix theory.
The Subjective Evaluation of Bells and Ringtone on Campus
Authors: Deng Rong Gen , Liao Wei Ming
Published: February 2012

Bell comes from the Bell of Jiangxi Normal University 70 Anniversary celebration. Ring is the class ring on the campus of Jiangxi Normal University. Soundscape is used to describe the acoustic environment to the listener as the center of, referring to the sound in a certain area of the overall situation. The present study subjectively evaluated the two elements of voice on the campus. We could acquire acoustic waveform and frequency by the physical analysis of both two elements. Bell acoustic showed weakened by the strong cycle, frequency 249.79Hz (B3 +19); ring acoustic frequency was 500.08Hz (B4 +21). Therefore, Bell structured but ring was on the contrary, bell frequency was lower than ring, and bell pitch was slightly lower than ring pitch. Synthesizing physical analysis, subjective evaluation of sound quality, subjective feelings of the two elements (bell and ring), the subjective evaluation of bell was better.
Study on Strategic Capability of China's Energy Security Protection under New Situation
Authors: Yan Yun , Wan Jing Jing
Published: February 2012

This paper expounds the connotation of energy security and the new changes in the concept of energy security. We analyze the major factors influencing China's energy security and the effect on China's energy security risks, at the same time we also come up with the major challenges under new situation and make six elements of energy security point, then on this basis, propose protecting the strategic capability, the strategic thinking and the strategic approach of China's energy security.
A Novel Defogging Algorithm Based on Genetic Algorithm with Analysis of Scientific Data Materials
Authors: Li Xiao Guang , Kang Li
Published: February 2012

This paper proposes a novel defogging algorithm based on the improved model with analysis of scientific data materials. By integrating the merit of genetic algorithm for searching global optimal parameters, the problem of fog-degraded images defogging restoration is transformed into the problem of optimization estimation for original undegraded image by maximizing the global contrast object function, the proposed algorithm can restore the object image as complete as possible in probability sense. Experimental results for single object image defogging gain satisfy visual effect.
An Optimization Algorithm for Orthogonal Trivariate Wavelets with Short Support
Authors: Han Ke Zhong
Published: February 2012

Wavelet analysis is nowadays a widely used tool in applied mathe-matics. The advantages of wavelet packets and their promising features in various application have attracted a lot of interest and effort in recent years.. The notion of vector-valued binary wavelets with two-scale dilation factor associated with an orthogonal vector-valued scaling function is introduced. The existence of orthogonal vector-valued wavelets with multi-scale is discussed. A necessary and sufficient condition is presented by means of vector-valued multiresolution analysis and paraunitary vector filter bank theory. An algorithm for constructing a sort of orthogonal vector-valued wave-lets with compact support is proposed, and their properties are investigated.
Numerical Simulation of Masonry Walls Subjected to Blast Loads
Authors: Yuan Xiao Jun , Chen Li , Wu Jian Hua , Tang Jing Xin
Published: February 2012

Much effort has been devoted to studying the blast properties of masonry infilled panels due to recent increasing accidental blast events. In this paper, the blast properties of the masonry infilled walls were analyzed with the finite element program LS-DYNA by the way of distinctive consideration of the bricks and mortar material in contrast to the experimental data. The numerical results have a good agreement with experimental data. The reliability and efficiency of this method in predicting the dynamic responses of masonry walls to blast loads was proven.
Numerical Simulation of Cathode Erosion in EDM Process
Authors: Wang Zhen Long , Xie Bao Cheng , Wang Yu Kui , Zhao Wan Sheng
Published: February 2012

A numerical model of cathode erosion in EDM process using finite element method is presented. Using this model, numerical simulation of the single spark of EDM process has been carried out with parameters such as conduction, convection, the latent heat of phase change, thermal properties of material with temperature and gauss distribution of heat flux to predict the temperature distribution in the discharge point of cathode as a result of single discharges in EDM process. The simulation result shows the trend of dynamic temperature distribution of heat -affected zone and well explains mechanism of material removal in EDM process.
Pressure Sensitivity Researched on the Metal-Coated FBG Sensors
Authors: Wang Xiao Xia , Wu Chun Ying
Published: February 2012

The FBG sensor’s pressure sensitivity that is influenced by the metal-coated material and thickness was described, and the relationship in them was rightly gotten. the metal pipes of different material and different thickness were acted as the metal-coated in experiment, and the gap between the fiber and the metal-pipe was filled with epoxy. As indicated by the experiment, the changeable curve of the pressure sensitivity between theory equation and experiment is identical, and the FBGs sensitivities can be improved to 3~13 times.
Machining Process Design Analysis and Research on Key Issues
Authors: Zhang Bai Jun , Liu Ying Chun
Published: February 2012

The machining process design principles discussed in the main, provide some valuable information for the preparation of a reasonable part of the processing technology has played some help.