bluuebunny/crossref_metadata_2025 huggingface dataset:
Multi-Physics Coupling Field Nonlinear Finite Element Model for Giant Magnetostrictive Smart Component
Authors: Sui Xiao Mei , Zhao Zhang Rong , Chen Wen Zuo , Zhang Xiao Yu
Published: March 2014

This paper presents three dimensional nonlinear finite element modeling of giant magnetostrictive materials. The nonlinear relationship between magnetostrictive strain and magnetic field is described by experimental curve. Model is implemented using finite element software CMOSOL multiphysics 3.2a. A new method for precise machining non-cylinder pin hole of piston by using embedded giant magnetostrictive smart component is presented. The effects on smart component deformation and the system resonance frequencies are studied. This model is verified against experimental results, with a good agreement.
Analysis on the Effects of Cooling Water Velocity on Temperature Rise of Motorized Spindle
Authors: Chen Nan , Zhang Ke , Zhang Li Xiu , Wu Yu Hou
Published: March 2014

In order to obtain the optimal cooling water velocity, the relationship between motor spindle temperature and cooling water velocity was derived by using the heat transfer and fluid mechanics. When the cooling water velocity was relatively small, its change has significantly influence on cooling effect; But when the cooling water velocity was relative large, the difference in cooling effect was inappreciable. Motor spindles water cooling system based on the software of ANSYS CFX was established. The cooling water velocity and temperature distribution in circular channel was analyzed. Motor spindle temperature of theory and simulation was compared under different cooling water velocity; Experiments were conducted according to the results of the simulation, Experimental temperature is consistent with simulation results, which verify the validity of motorized spindle simulation analysis and theoretical derivation. The study in this paper provides a reference for the motorized spindle selecting the rational velocity of cooling water.
Impact of Distributed Generation on Power System
Authors: Wei Ming Yue
Published: March 2014

For the study of distributed generation and its impact on power system, this paper briefly introduces the basic concept, the advantages of distributed generation, and the concept and basic structure of micro-grid. From the power system planning, system voltage, power quality, island effect, relay protection and other aspects, this paper analysis and discusses the influence of distributed power on power system. To properly resolve the grid-connected distributed generation power influence, it will be helpful for the development of future of distributed power generation. Distributed power generation can be used not only as an important supplement of the traditional centralized power supply mode, but also as a very important role in energy utilization, it will become an important area of research and development in future energy.
Impact of Large Scale Grid Connected Wind Power on Power System
Authors: Wei Ming Yue
Published: March 2014

The randomness and fluctuation of wind results in wind power generation with strong uncertainty. To ensure the power system operate safely and reliably, research on the impact of grid connected wind power on power system is necessary. From the perspective of system relay protection, system peaking, transmission capacity planning and reliability planning, this paper introduces the impact of centralized wind power integration on power system.
Research on Harmonic Elimination of the DC Circuit
Authors: Li Hao Hua , Wang You Hua , Zhu Dun Yu
Published: March 2014

270V high voltage DC power supply system with grid of light weight, uninterrupted power supply and a two power density higher characteristic, in recent years become a hot research topic in domestic and international air supply system.[ To ensure the high voltage DC bus power quality, for the safe operation of the aircraft is very important. Single phase aeronautical static inverter as a typical aircraft power system load, the input current ripple of the serious pollution of the high voltage DC power supply. Therefore, the harmonic pollution problem of how to control the high voltage DC power supply system has been increasingly concerned aviation power researchers.
Viscoelastic Circumferential SH Wave in Graded Hollow Cylinders
Authors: Yang X.D. , Yu J.G.
Published: March 2014

In this article, circumferential SH wave propagation in functionally graded material (FGM) hollow cylinders is investigated. Based on the Kelvin-Voigt viscoelastic theory, the controlling differential equations in terms of displacements are deduced. By the Legendre polynomial method, the asymptotic solutions are obtained. Through the numerical results, the influences of gradient profile and the influences of the radius to thickness ratio on dispersion and attenuation are illustrated. The work is crucial for guided ultrasonic nondestructive evaluation for graded hollow cylinders.
Power Quality Analysis and Research of Fushun Area Grid
Authors: Pang Yan Jun , Gu Cheng Zhao , Wang Qing Hao , Pei Yu Jie , Cao Hui Yan , Jiao Hong Zhi , Bai Lin , Tang Hui , Wang Lei , Wang Xue
Published: March 2014

With the development of national economy, the progress of science and technology and the height of the production process automation, various nonlinear loads in power grid grow rapidly together with a variety of complex, precise and sensitive power equipment. The above-mentioned two aspects of contradiction is more and more prominent and the requirement of users for power quality is also higher. In such situation, this paper discusses the related theory and its control technology in the field of power quality, analysis the development trend of power quality management and control in our country, which has a strong practical significance. This paper expounds the main problems affecting the quality of electric energy, and analyze in detail the way to improve the quality of electric energy, and then give a preliminary discussion on the development direction of this field.
Study on Power Load Forecasting Method Based on Ant Colony Optimization
Authors: Fu Yan Yi , Xu Li
Published: March 2014

Load forecasting is one of the important working of the power system, which plays a very significant role in various departments of power system operation. Load accurate scientific prediction can make power decision-making departments economically and reasonably to adjust generator, power line, which makes it more reasonable. This paper introduces the optimal combination forecast model, and organically combine with several electric load forecasting models by the weight, come to more accurate results, with higher prediction accuracy, and the relative error is small, it has some practical value.
Design and Implementation of the Controller of Active Power Filter Based on Dual-DSP
Authors: Wang Shi Hong , Huang Zhi Wei , Xie Pei Cheng , Chen Wei Ru , Zeng Jiang , Ouyang Sen
Published: March 2014

This paper has designed an active power filter control system with dual digital signal processor (DSP) core, which meets the requirements of functional and intelligent design of the active power filter (APF), and improves the real-time performance efficiency of the controller. Firstly, the structure of the controller hardware system design process, as well as major hardware modules were analyzed in detail; Then in-depth analysis of AD conditioning circuit module, analog-to-digital converter module, dual-port RAM modules and fault detection circuit module as well as the dual DSP program process was introduced. Finally the real-time performance and accuracy of the designed controller was proved by the performance test.
Design of Lighting Circuit System Based on RS485 Bus
Authors: Wang Yong Jie , Qin Zong Jin
Published: March 2014

This document demonstrates how to design a lighting circuit based on RS485 bus using STC89C52 chip. The whole circuit includes a main node, two from the node, the main circuit is composed of main control circuit, MAX485 bus interface circuit, display circuit, power supply circuit, a relay control circuit etc..
Wavelet Neural Network Model for Short-Term Wind Power Forecasting Based on Particle Swarm Optimization Algorithm
Authors: Chen Ye
Published: March 2014

The accuracy of short-term wind power forecast is important to the power system operation. Based on the real-time wind power data, a wind power prediction model using wavelet neural network is proposed. At the same time in order to overcome the disadvantages of the wavelet neural network for only use error reverse transmission as a fixed rule, this paper puts forward using Particle Swarm Optimization algorithm to replace the traditional gradient descent method training wavelet neural network. Through the analysis of the measured data of a wind farm, Shows that the forecasting method can improve the accuracy of the wind power prediction, so it has great practical value.
Transient Analysis of Multi-Conductor Transmission Line Based on the Second-Order Upwind Scheme
Authors: Gao Yin Han , Zhang Jun Dong , Yang Kai Yu , Wang Tian Hao , Zhu Yu , Tan Tian Hong
Published: March 2014

On the basis of the second-order upwind scheme, combined with the flux splitting method, we derive a uniform multi-conductor transmission line time-domain calculations. This method is a direct time-domain discrete numerical method with second order accuracy. It does not have any special requirements for circuit and the application process and complex transformations which lead to facilitate the preparation of the program. Numerical experiments show that this method of preparation of general purpose computing program has roughly the same computational efficiency with the traditional leapfrog scheme and at the discontinuous solutions, there are no non-physical oscillations. It can easily be used to calculate a uniform multi-conductor transmission line coupling.
The Design and Implementation of High Precision Three-Phase Sine-Wave Signal Generator
Authors: Kang Shou Qiang , Li Shan Shan , Zheng Shi , Wu Di
Published: March 2014

A design and implementation method of high precision three-phase sine-wave signal generator is proposed based on MCU and FPGA. For the traditional design method, direct analog synthesis method and phase locked loop (PLL) technology are used to design the signal generator. So the function, the precision and other aspects are inadequate. Aiming to the problem, a signal generator is designed based on direct digital frequency synthesis (DDS) technology. The MCU is used to control the peripheral devices and the frequency and phase control word can be obtained. The DDS module is achieved by EP4CE6E22C8 and the waveform lookup table addresses are outputted. The digital three-phase sine-wave data can be read from the lookup table. Through the three-way D/A converter and the amplifier circuit, the digital signal is converted to analog signal and the three-phase sinusoidal wave is outputted. The precision can be improved by increasing the sampling points, phase accumulator bits and D/A bits, and then, high precision three-phase sine-signal can be obtained and the adjustable frequency precision is 0.001.
Short-Term Power Load Forecasting Based on the Combination of Improved Neural Network Model and Fuzzy Decision Model
Authors: Li Jia Ming , Li Peng
Published: March 2014

A fuzzy decision model is built to analyze correlation of historical load datas, and to preprocess original datas, by extracting useful datas contributing to forecasting and removing "bad datas". Then the neural network model (NNM) is established to predict power load value measured at 96 time points, through accurate analysis, the rationality of the model is verified.
Research of Bus Video Monitoring System Based on WCDMA
Authors: Zhang Lian Jun , Liu Shi Jie
Published: March 2014

The bus video monitoring system is composed by WCDMA transmission system, video server system, system monitoring center and outreach system. By WCDMA wireless transmission module achieving real time video data return, while using VPDN network technology. Using of the DVS video server and by WCDMA transmission system, the monitoring videos information will be transmitted to the monitoring center rapidly and in real time. The monitoring center can remotely monitor, manage, and dispatch the bus. The results demonstrating this system has good real time transmission ability.
Fault Diagnosis of Gear Wearing Based on Order Cepstrum Analysis
Authors: Tian Hao , Kang Xiao Yong , Li Yong Jian , Zhang Jun Nuo
Published: March 2014

The article explored a new signal processing method called order cepstrum analysis, it can analyze the instantaneous signals of the rotary mechanism, and can process the non-stationary vibration signals such as speed up or speed down signals effectively. Firstly, the start-up vibration signals of the gearbox are sampled at constant time increments in time-domain, then the data are resampled with software at constant angle increments in angle-domain. Therefore, the time domain instantaneously signal is changed into angle domain stationary signal. Then, the stationary signal is analyzed by order cepstrum. From the result we can find that it can avoid the frequency fuzzy phenomenon effectively, which cannot be solved with the traditional frequency spectrum analysis.
A Decision Making Assist System Based on Plan Conflict Detection and Alerting for Air Traffic Controller at Aerodrome
Authors: Xiang Zheng , Tang Yu , Kang Feng
Published: March 2014

To help air traffic controller at aerodrome better control traffic in maneuvering area, a decision making assist system based on plan conflict detection and alerting is proposed. The most important feature of the proposed system is the module of taxi conflict detection. After an aerodrome controller issues taxi instructions to different flights, the module will detect the potential taxi conflict between flights based on the planned taxi routes and therefore alter the controller. Once the proposed system is used in operation, the efficiency and the safety of the taxi instructions given by the air traffic controller at aerodrome will improve, and traffic operation at aerodrome will become smoother and more efficient.
Traffic Flow Detection Algorithm Based on Gaussian Mixture Background Modeling
Authors: Lv Yang Jian , Li Guang Yao , Xiao Mang
Published: March 2014

This paper aims to solve the problem of traffic flow detection through video analysis. To tackle with this problem, we propose a novel traffic flow detection algorithm based on Gaussian Mixture Background Modeling which mainly utilizes the advantages of two existing traffic flow detection methods combined with some other technologies, such as improved canny edge detection algorithm, Gaussian Mixture Background Modeling method and background difference techniques. Extensive experiments and comparative studies show the superiority of our traffic flow detection algorithm in real time performance and accuracy.
The Develop for Synthetically Test-Platform System of Aero Instrument
Authors: Wang Qi , Yang Fan , Huang Yun Ming , Nong Xie
Published: March 2014

The article introduced the necessity of the develop for synthetically test-platform system of aero instrument. The form and design of the system was introduced from the view of software and hardware. The adoptive main technique was offered in the process of systemic design.
Research on Package Materials with Properties of Packaging Materials for the Tianjin Port Throughput Prediction and Analysis
Authors: Zhang Min , Pan Rui
Published: March 2014

Through the understanding of the concept of the prediction and find the port to port the importance of decision-making as a whole, and then select the use of exponential smoothing method to forecast the port throughput, on the property of the transport of goods packaging materials on the basis of deep understanding, goods to the port selection of packaging materials has a strong guiding significance.
Effect of Temperature on CO2/H2S Corrosion of Oil Tube Steels
Authors: Wang Ying
Published: March 2014

The CO2/H2S corrosion behaviors of oil tube steels N80 and P110 at different temperature were investigated by corrosion rate calculation and corrosion morphology observation. The results show that with the increase of temperature, the CO2/H2S corrosion rates of both steels increase at first and then decrease, and reach the peak at 90°C. The corrosion rate of steel P110 is higher than that of steel N80.
Effect of Compression Storage on Adsorption Property of Silicone Rubber in Silicone Interfacial Systems
Authors: Yang Qiang , Wen Xiao Ping , Sun Chao Ming , Tang Guang Ping
Published: March 2014

The effect of compression storage on adsorption property of silicone rubber in silicone rubber-stainless steel interfacial system and silicone rubber-simulated X material interfacial system was studied in the paper by means of adsorption force testing and SEM statistical calculation method. The results of adsorption force testing indicated that surface roughness, sample type and compression ratio had important influence on adsorption, i.e. smooth surface tend to absorb, which implied that vacuum adsorption might be the main adsorption mechanism for silicone rubber interfacial systems. Plane-type, spherical type and inclinded plane type of samples had different degree of adsorption. Stainless steel interface tended to have larger adsorption than simulated X material interface. Higher compression ratio might lead to higher adsorption force. A SEM statistical calculation method was proposed to estimate the maximum vacuum adsorption force, and the maximum measurement result of adsorption force was approaching to the calculated maximum vacuum adsorption force by the proposed SEM method.
Study on Biological Materials with Flavonoid Active Compounds of Apocynum venetum L.
Authors: Zhong You Quan , Liu Yi Lu , Zhang Wu Gang , Yang Jie , Cheng Lin
Published: March 2014

The Apocynum venetum L. of Apocynaceae plant is a traditional Chinese herbal medicine. In this paper, we analyzed qualitatively the active compounds in the aqueous extract from the leaves of Apocynum venetum L. by HPLCMS and HPLCDAD. The aqueous extracts method of the mainly active compounds from dried leaves of Apocynum venetum L. was based on HPLC/DAD coupled to an electrospray ionization (ESI) interface. Overall, 8 constituents were separated and identified, which belong to flavonoids.
Practical Synthesis of β,γ-Bridging Oxygen-Modified Stavudine 5’-Triphosphates
Authors: You Yue Hai , Gong Shan Shan , Sun Qi
Published: March 2014

As non-hydrolyzable analogs of stavudine 5’-triphosphate, β,γ-bridging oxygen-modified stavudine 5’-triphosphates (β,γ-CX2-NTPs, X = H, F, and Cl) possess potential medicinal value in the treatment of viral infections and are of substantial interest to both synthetic and medicinal chemists. Three β,γ-bridging oxygen-modified stavudine 5’-triphosphates were synthesized from stavudine 5’-phosphoropiperidate with 4,5-dicyanoimidazole (DCI) as the activator.
Efficient Synthesis of d4T Diphosphate and d4T Triphosphate
Authors: Xie Zhen Biao , Gong Shan Shan , Sun Qi
Published: March 2014

The diphosphate and triphosphate of an antiviral 2’,3’-dideoxynucleoside, d4T, were synthesized via a P(V)–N activation method. The key d4T phosphoropiperidate intermediate was obtained by a redox condensation method based on 2,2’-dithiodipyridine/triphenylphosphine system. The reaction of the phosphoropiperidate with phosphate and pyrophosphate in the presence of acidic 4,5-dicyanoimidazole activator afforded the desired d4T diphosphate and triphosphate in high isolated yields.
Numerical Simulation of Unsteady Aerodynamic Loads over an Aircraft
Authors: Xiang Xiao Jun , Qian Yu
Published: March 2014

The unsteady aerodynamic loads are the basic of the aeroelastic. This paper focuses on the computation of the unsteady aerodynamic loads for forced periodic motions under different Mach numbers. The flow is modeled using the Euler equations and an unsteady time-domain solver is used for the computation of aerodynamic loads for forced periodic motions. The Euler equations are discretized on curvilinear multi-block body conforming girds using a cell-centred finite volume method. The implicit dual-time method proposed by Jameson is used for time-accurate calculations. Rigid body motions were treated by moving the mesh rigidly in response to the applied sinusoidal motion. For an aircraft model, a validation of the unsteady aerodynamics loads is first considered. Furthermore, a study for understanding the influence of different Mach number was conducted. A reverse of the trend of hysteretic loops can be observed with the increasing of the Mach number.
Testing Study and Mechanics Analysis on Fatigue Life of MSD Structure
Authors: Zhao Jin Fang , Zhao Qun
Published: March 2014

Multiple site damage (MSD) usually occurs in the form of some small fatigue cracks at several sites within aging aircraft structures. It is very important to study the fatigue life of this kind of structure. This paper used testing method to observe the phenomenon of crack propagation, to analysis the result of the crack propagation. It provides testing reference for the study on fatigue life of MSD structures. According to the analysis of fatigue life of typical structures, a series of valuable conclusions are obtained.
Finite Element Analysis of Drilling Frame on Down-the-Hole Drill Based on Mechanical Mechanics and Mechanical Properties
Authors: Wu Wan Rong , Chen Lin
Published: March 2014

Drilling frame on TD165CH Down-The-Hole Drill that has large slenderness ratio and be longer than 10m is one component of Down-The-Hole drill which is mainly subjected to load.In the process of drilling, drilling frame is not only subjected to loads which are like tensile, compression and torsion and so on, and be under the influence of impacting and vibration of impactor,the situation of force is complicated.By analysing of working condition of Down-The-Hole drill,there get all kinds of limit states of typical working conditions, and then using Ansys doing finite element analysis, there get distribution of the stress and strain of drilling frame and the result of modal analysis to check whether drilling frame meets the requirements of strength and stiffness or not,and whether it is possible to resonate with the impactor or not.By analysis,Structure strength and stiffness of drilling Frame on TD165CH Down-The-Hole drill meet the requirements of practical engineering, and drilling Frame does not resonate with the impactor.
Experimental Study on Connections of Superimposed Slabs
Authors: Ding Ke Wei , Wu Fei , Liu Yun Lin
Published: March 2014

Based on the static loading experiment of four reinforced concrete floor slabs, the paper studied their loading mechanism and bending performance, such as deformation, bearing capacity and fail modes,there is much significance to provide a scientific basis for application in the field of practical engineering of the reinforced concrete floor slabs and to popular this new type of reinforced concrete floor slab.
Study on the Optimal Use of Land from the Perspective of Soil Ecological Value
Authors: Hu Yan Ling , Xi Zeng Lei , Li Li Hong
Published: March 2014

In order to achieve the optimal use of soil resources,not only the soil function value in research area should be calculated scientifically,but also some practical methods and tools should be researched in planning.The article took five districts of Zhengzhou city as research area,and took functional value indexes data in factor model,then get four main factors,correlation between each other is very weak.According to the factor score,the article analysed how to use the conclusion comprehensively from two aspects: single factor and integrated factor.
The Development Mode of the Livable Environment Construction of Shenyang Tiexi Old Industrial Relocation Zone
Authors: Cheng Wei , Chai Li Juan , Cheng Cheng
Published: March 2014

This article makes some basic analysis of the liable environment construction of industrial city and explores the development patterns of the livable environment construction of Shenyang Tiexi old industrial relocation zone, which can provide ideas and references for other old industrial cities to realize the goal of the livable environment construction.
A New Prediction Method of Soil Pollution
Authors: Yu Ze Yuan , Chen Xiao Lin , Qiu Zhi Tao
Published: March 2014

A new method for predicting soil pollution with lead pollution in a city as the research object is established. We use this particular method and the Kriging Interpolation method to simulate the spatial distribution of heavy metals in soil. Select the 20 sampling points as the cross-validation data set. Compare and analyze two kinds of interpolation methods. The results showed that: the new method is more suitable for urban areas contaminated with mutations since it has high prediction accuracy there. Analysis of soil with heavy metal contamination soil is premise of soil remediation and ecological restoration. Research results possess significant values for theories which choose different interpolation simulation methods according to different purposes.
Research on Evaluation System and Environmental Construction for Energy-Efficiency about the Residential Buildings
Authors: Mao Song Ping , Zou Zu Xu , Xue Yun Xia , Li Yuan Lin
Published: March 2014

The consumption of building energy will be reduced in the future development, and the development of energy-efficient buildings will be a trend. The buildings have been divided into four classes, like the residential building, the public building, the industrial building and the agricultural building. As the energy evaluation of buildings had played an important role in the environmental construction, therefore the research was mainly focus on the residential building of energy evaluation work, by the analysis both on home and abroad about building energy evaluation of status, and combines national and area enacted of about building energy of evaluation standard, to construct a residential building evaluation system, and for the evaluation work service of residential building of energy by introducing a full of about the residential building evaluation system of constructed process.
Numerical Study of Water Exchange in Environment Engineering in Pulandian Bay
Authors: Chen Hao , Chen Fu Li , Zhu Yong Ying , Zeng Ming , Sun Chen , Bao Qiang
Published: March 2014

By the tracers of dissolved conservative substance, establishing the convection diffusion numerical model of water exchange in the bay. The water exchange simulation results derive the half-exchange period of each region.And based on the hydrological data,model results show the tidal current field and the half-exchange period,analyzing the water exchange properties and the convective transport of pollutants to the Pulandian Bay.The numerical simulation results provide the scientific basis and basic data for the sea area construction and environmental protection.
Study on Building Energy Saving Techniques and Ways in China
Authors: Yang Fang Fang
Published: March 2014

The building is one of the most common forms of space in our life, has a great influence on our life. China facing a very grim energy situation, building energy efficiency has great impetus to economic development. This paper analyzes the ways to achieve the construction of energy-efficient and proposes to reduce the total energy demand and utilization of new energy sources. In the construction of energy-saving technology, the construction of energy-efficient windows and doors and roof insulation wall are analyzed and puts forward some relevant suggestions.
Improvement Research of Organic Phenolic Gel being Used to be an Organic Deep Profile Control Agent
Authors: Liu Yu Li , Qin Yi
Published: March 2014

Organic phenolic gel is commonly used to be a deep profile control agent which applies to use in the high water cut oilfields where heterogeneity is severe, improve the contradiction of inter-reservoir layer and inner layer, expand water sweeping zone, and achieve the purpose of stable oil production and water control. Organic phenolic weak gel is mainly affected by the concentration of each component and reaction temperature. In this paper, formaldehyde was replaced by urotropin, which is not only delaying the gelation time, but also avoiding pollution. In addition, a water-soluble phenolic resin oligomer has been synthesized by the method of two-step alkali catalysis with appropriate mole ratio as an auxiliary crosslinking agent. Considering the concentration of each reactant as the factor, the orthogonal experiments have been designed to optimize the traditional organic HPAM-phenolic weak gel. We have found that the optimized weak gel has a better stability, longer gelation time, better salt resistance and environment friendly. It can better meet the needs of oilfield deep profile control.
The Method to Display the Distribution of Groundwater Pollution Dynamically with COMGIS Based on Visual Developing Platform
Authors: Jing Ping
Published: March 2014

Groundwater pollution shold be visulazed by spatial maps, in order to know how the spatial pollutant situation is, the visualization analysis is adopted to analyse the regional pollution with monitoring data. Map is a visual means of symbolic expression to map data, ArcObjects provides a number of symbolic objects to render thematic maps, and these component objects are consisted with three series of Color, Symbol and Renderer. On the development platform C#.NET, taking geographic information system components (COMGIS), the thematic map program is designed and implemented by C# language and Arc Objects component, which is run correctly, thematic maps can be loaded to display the legend, and the grade levels number can be calculated automatically and set by user freely.
A Survey of Coagulating-Based Treatment of Printing and Dyeing Wastewater
Authors: Zhong Shao Fen , Mo Jian Wen , Liu Yu Ping
Published: March 2014

This paper presents a survey of the application and research progress of inorganic coagulants, high polymer coagulants and compound coagulants in treatment of dyeing wastewater. After introducing the coagulation mechanism, the review is organized with respect to the characteristic of water quality and the present industrial practice of dyeing wastewater. Since the compound coagulant is the mainstream practice, we concentrate on the current technologies on this subject and discuss its future trend.
Applied-Information Technology in Research of Security Processing Based on IOT Data
Authors: Jiang Wei , Yang Feng
Published: March 2014

Internet of things (IOT) has become an important trend in the development of information technology. How to deal with huge amounts of internet data is becoming more and more important. In this paper, we have a further research in the technology of applied-information about mass content of network data security processing model. This model is mainly composed of massive internet of data acquisition, data storage, based on the rules of mass data processing and data security management, etc. The model can be applied to all kinds of massive internet data monitoring system based on rules, such as: the lake water quality monitoring system based on Internet of things, PM2.5 monitoring system, and so on.
Applied-Information Technology and Parallel Learning Rules in Intelligent Control System
Authors: Ye Wei Qiong , Cheng Kai Li , Xu Lin
Published: March 2014

This paper applied information technology and takes the exploratory action or state transfer formed experiences of control system as the basis, in the unsupervised condition obtaining planning and controlling rules from experiences as the control knowledge. In learning process, experiences will deduce to rules, then generate high-level concepts or rules, constitute multi-resolution knowledge architecture. In the experiment, mobile robot effective learning and planning system state and action control in quasi-optimal manner based with random experiences.
Research on Applied Technology with Development of Modern Computer Simulation Technology
Authors: Xu Xian Qiu
Published: March 2014

Computer simulation technology is a very complicated professional technology, data acquisition system using data acquisition card generally is expensive and difficult to exactly match with the actual demand. Sound card as the data acquisition card has the advantages of low cost, easy development and system flexibility. Is studied based on the model of activity of simulation technology, the concept of modern simulation methodology of system modeling method, simulation modeling method and simulation experiment, the simulation modeling of the commonly used algorithms and relevant issues, the simulation credibility concept and research content. In recent years, with the rapid development of information processing technology, simulation technology is rapid development. According to the author's research experience, this article attempts to from the meanings of the simulation, and discussed the modern reliability method, the modeling method, the simulation algorithm, simulation research and so on, to reasonably and effectively in the simulation operation simulation do some exploring new methods and new technologies.
Feasibility Study on Sprayed FRP Used in the Seismic Strengthening of Concrete Frame Joints
Authors: Yang Zhao , Wu Di , Yang Zhi
Published: March 2014

Joints are the weak parts in the concrete frame structures, which are easy to be damaged in earthquake and cause the entire collapse of the structure. FRP pasted on the surface to strengthen frame joints have a good effect in experiments, but the pasted FRP can not effectively constrain the core area of the joints and will increase the difficulty of construction when using in actual engineering. The paper studied the feasibility of Sprayed FRP used to reinforce concrete frame joints, the advantages and mechanism of Sprayed FRP were analyzed. The study may provide the basis for the popularization and application of this new technology in actual engineering.
Calculation and Analysis of the Thermal Performance of a New Type of Rock Wool Color Steel Sandwich Board
Authors: Ding Ke Wei , Cheng Chen , Hao Ying Qi , Xia Shan
Published: March 2014

The thermal performance of a new rock wool color steel sandwich board is calculated and the results are analyzed comparatively with those of other thermal insulation materials in this paper. The result proves this type of rock wool color steel sandwich board to be worth promoting because of its well thermal performance, and of its satisfaction with requirements of relevant thermal specifications.
The Study on Scroll Spring for Energy Recovery for a Washing Machine
Authors: Chen Lei , Wang Rui Hao , Deng Chang Yu
Published: March 2014

A scroll spring for energy recovery for a washing machine was designed mainly including the spiral spring, ratchet clutch, new gear clutch and other components. The program is that we have stored the mechanical energy with a spiral spring when the washing machine is (anti) to brake and decelerate, and use it while the washing machine is anti-(positive) to start or accelerate. So it achieves the effect of energy saving.
The New Design Idea about Rock Direct Tensile Testing Machines Based on the Magnetic Levitation Principle
Authors: Zhao Zhong Hu , Sun Lan Ning
Published: March 2014

Direct tensile testing machines are the necessary to study tensile property of rocks. However, a traditional testing machine has the weakness of absenting effective subjacent brace. So, the whole tensile experiment can not be done completely. By using elastic brace, the whole tensile experiment really can be finished, then we can get the stress-strain curve. But, the samples are destroyed around incorrect planes. Aiming at the disadvantage of the machines, the author brings forward a new method of improving the direct tensile testing machine by using two magnets as the subjacent brace with magnetic levitation function. In this article, the author analyses the reasons why magnetic levitation can offer support and explains the components of the brace, its installation and principles. At last, the authors analyze the design idea and the technical effect of the brace.
Research on Risk of Automotive Product Life Cycle Design Based on Low Carbon Requirements
Authors: Jia Rui Ping
Published: March 2014

Based on low-carbon and product life-cycle design concept, this paper classifies risk factors in different stages of automotive product life cycle design risk evaluation indicator system and analyzes the different risk categories weight adopting the rough set and analytical hierarchy process to determine the key risks of automotive product in different stages of life cycle. Additionally, real instances are cited to verify the conclusions.
Study on Bending Process of Forming Analysis at the Edge of a Sphere and the Optimization of Initial Blank Shape
Authors: Kim Dong Hong , Jung Dong Won
Published: March 2014

Material is deformed upon the application of an external force. If the external force is removed, the material either returns to the original shape, or it is transformed forever. The ability of a material transform without destroying it is called plasticity, and the permanent transformation is called plastic deformation. Using the plastic properties, of a material in processing is called plastic process. Press processing is a kind of the plastic processing method. In today's automotive industry and electronics industry, press processing is an indispensable processing method to produce frames or panels. In this study, the best initial shape before forming of blank metal material is determined for bending processes to produce a refrigerator door panel.
Automatic Lubrication System for Minimizing Friction of Driving Parts for Large-Sized Commercial Vehicle
Authors: Lee Sang Hyeop , Kim Man Ho , Lee Suk , Lee Kyung Chang
Published: March 2014

One of the causes of malfunction of commercial vehicle is corrosion or wear. In order to prevent corrosion and wear, lubricants have to be supplied periodically. However, the period of lubrication usually depends on operator's judgment. If the period is too short, excess lubricant will cause pollution and unnecessary expenses, whereas long periodic supply of lubricant might cause wear, damage and eventual breakdown. Therefore, an automatic lubrication system with predetermined interval will reduce the excessive supply of lubricating oil and prevent wear and damage. This thesis presents an automatic lubrication system which consists of a lubricant pump and an embedded controller. An automatic lubrication operating algorithm is used to operate the lubricant pump and feedback the pressure status of the system using pressure sensors. The developed system shows an efficient periodic supply of lubricant.
Remote Monitoring and Control System for Electrical Haulage Shearer
Authors: Jiang Jun Ying , Wang Zen Qiang , Ma Hong Wei , Zhang Xu Hui , Wu Hai Yan , Zhao You Jun
Published: March 2014

For the requirements and problems in remote monitoring and control system of electrical haulage shearer, this paper research the key technologies of shearers remote monitoring and control system, such as position and attitude testing, control strategy decision, communication real-time and reliability of network. Position and attitude testing method based SINS (Strap down Inertial Navigation System) was designed to measure position, attitude angle, speed and drum height of shearer together. The shearer control strategy based on work mode was proposed to control shearer working in optimal status. Finally, the network control model of shearer was established in order to analyze the time delay that effects on shearer control system.
The Melting Behaviors of the Bimetallic Cluster ConCu55-n(n=0~55)
Authors: Li Qian , Liu Li , Feng Ying Jin , Zhang Shi Feng
Published: March 2014

The melting behaviors of ConCu55-n(n=0~55) bimetallic cluster were studied by using semi-empirical Gupta potential combined with molecular dynamics simulations. The melting point of the ConCu55-n(n=0~55) cluster shows itself the trend of going up, accompanied by the increasing of the Cobalt atomicity. However, it is between Co55and Cu55elementary cluster for melting point overall. Meanwhile the variation in the width of pre-melting temperature is greater, if around n0 or n55, but it is lesser nearly n55/2(namely Co and Cu at the same atomicity). In addition, the saturation point of specific heat capacity can be determined corresponding to the peak of Lindemann index.
PCA-FNN Based Performance Prediction for Water Injection in Oilfields
Authors: Tian Ya Juan , Liu Ye , Cheng Guo Jian , Wang Zhe
Published: March 2014

In order to solve the problem of uncertain cycle of water injection in the oilfield, this paper proposed a numerical method based on PCA-FNN, so that it can forecast the effective cycle of water injection. PCA is used to reduce the dimension of original data, while FNN is applied to train and test the new data. The correctness of PCA-FNN model is verified by the real injection statistics data from 116 wells of an oilfield, the result shows that the average absolute error and relative error of the test are 1.97 months and 10.75% respectively. The testing accuracy has been greatly improved by PCA-FNN model compare with the FNN which has not been processed by PCA and multiple liner regression method. Therefore, PCA-FNN method is reliable to forecast the effectiveness cycle of water injection and it can be used as an decision-making reference method for the engineers.
Design of Aerial Target Simulator Based on the LCD of HDMI Interface
Authors: Song Hong Fei , Che Ying , Li Peng Fei , Mao Shan
Published: March 2014

Based on a generic LCD of HDMI interface, the aerial target simulation platform, which consists of the host terminal and display terminal, has been designed. The host terminal directly driven by S5PV210 processor is composed of TFT LCD screen, touch screen and HDMI interfaces, and the display terminal is a large-size LCD. According to the refractive index variation due to atmospheric turbulence, as well as other factors, such as height , distance and speed, the outdoor air targets can be placed in a small indoor space to simulate the flying aircraft size and shapes based on the " air targets real-time updates simulation algorithm ". Then the observer can achieve the image of the simulation on the screen through the HDMI interface by pointing the device to the target. Compared with the traditional outdoor experimental device, it has many advantages, such as easy operation, low cost and easy modification of the targets. The experimental results show that the simulator has realized the simulation of remote aircraft, which meets the needs of a variety of flying targets in different occasions.
The Design of New-Type Digital Readout Device by Inductosyn
Authors: Shang Xin Juan , Wang Quan Jing
Published: March 2014

The paper introduces the operation principle and system structure of intelligence digital readout system by inductosyn. The system adopts integrated subdivision circuit on the basis of AD2S90 and QA740210 and is controlled by MCU. It adopts phase demodulation mode, with functions of multipoint preset, power-fail protect, absolute origin setting, software error compensation, LCD display and so on, except simple PLC function and standard RS485 communication interface.
Effect of Na3WO3F3 Content on the Liquidus Temperature of KCl-Na3WO3F3 Molten Salt System
Authors: Li Jie , Pei Yang , Liu Ya Bin , Li Yun Gang
Published: March 2014

The liquidus temperature of molten salt KCl-Na3WO3F3 system was measured by differential thermal analysis. The results show that in the molten salt system when =0.5, <0.5 the liquidus temperature decreased with the increase of Na3WO3F3 content; when =0.5, >0.5 the liquidus temperature increased with the increase of Na3WO3F3 content; the eutectic temperature is 601.8 °C, the eutectic composition is = 0.5, =0.5.
A Simplified Fabrication Method of Dielectrophoresis Chip Using Au Thin-Film and Box Cutter
Authors: Nishimoto Kyohei , Taguchi Kozo
Published: March 2014

We propose fabrication method of a planar quadrupole microelectrode for dielectrophoresis (DEP), which is fabricated by Au thin-film, ion coater and box cutter. This method is more cost effective and simpler than previous existing methods. We conducted two experiments for confirming usefulness of the Au DEP chip. Those are separation of yeast cells and trap force of DEP. To separate yeast cells, we used viable and non-viable cells. DEP force arises when an inhomogeneous AC electric field and sine wave frequency were applied to microelectrode. The Au DEP chip is able to distinguish between viable and non-viable cells and separate them by frequency dependence and the flow with Syringe pump. The chip can obtain viable cells which were trapped without contact to the microelectrode. The viable cells can use for fusion or cell culture. Furthermore, we carried out another experiment to investigate the trap force. The trap force of Negative-DEP becomes gradually weak when the frequency increases with 0.1, 0.5 and 1MHz. We were able to confirm relation between trap force and frequency by the Au DEP chip. The trap force has frequency dependence. Through the two experiments, we have established usefulness of the Au DEP chip.
Use of CrN Passivation for Fabricating Al Micro-Materials by Electromigration
Authors: Kimura Yasuhiro , Sasaki Takahiro , Saka Masumi
Published: March 2014

The technique for fabricating Al micro-materials using a conductive passivation film by electromigration (EM), which is the physical phenomenon of atomic transport with high-density electron flow, has been reported. Conductive passivation film precludes the unplanned hillock formation and substantially simplifies the sample preparation time for fabricating Al micro-materials by EM. To date, TiN that is electrical conductive material has been used as a passivation film. However, the TiN passivation oxidizes during heat and current test for fabricating Al micro-materials by EM because of inherent poor oxidation resistance of TiN. Oxidation of passivation causes a problem that applying current occasionally becomes difficult. The present paper proposes a new conductive passivation made of CrN for fabricating Al micro-materials by EM. CrN is used as a countermeasure against the oxidation problem. Additionally, the growth of Al micro-materials by EM is investigated in the relation with the experimental conditions of current and substrate temperature. As a result, we report that the fabrication of Al micro-materials using the CrN passivation is successfully demonstrated in the relation with the experimental conditions.
Ultrasonic Enhancement of Separation Azeotropic Mixtures via Single Distillation Column
Authors: Mahdi Taha , Ahmad Arshad , Ripin Adnan , Nasef Mohamed M.
Published: March 2014

The separation of azeotropic mixtures is conventionally one of the most challenging tasks in industrial processes as their separation by a simple distillation is basically impossible. Vapor-liquid equilibrium (VLE) equations with ultrasonic technique was based on a number of assumptions need to be built model on MATLAB software and compared the results with experimental work to validity the model. As a case study, the influence of ultrasonic intensity and frequency on the VLE of ethanolethyl acetate mixture was investigated, and a combination of five ultrasonic intensities (from 100 and 500 W/cm2) and three frequencies (from 25 to 70 kHz) were used. It is noted that with increase the ultrasound intensity and decrease the frequency can be improved the azeotropic point and relative volatility of the mixture. The results revealed that ultrasonic waves had the potential to enhance separation of azeotropic mixtures in a distillation column.