bluuebunny/crossref_metadata_2025 huggingface dataset:
Design and Memory Optimization of Motion Estimation Module for H.264/AVC Encoder
Authors: Zhang Duo Li , Wang Chuan Jie , Song Yu Kun , Du Gao Ming , Cheng Xian Wen
Published: March 2011

H.264/AVC standard has been widely used in video compression at various kinds of application domain. Motion estimation takes the most calculation workload of H.264/AVC encoder. Memory optimization has played an even more important role in encoder design. Firstly, dependency relation between motion vectors was analyzed and removed at a little cost of estimation accuracy decrement, and then a 3-stage macro-block level pipeline architecture was proposed to increase parallel process ability of motion estimation. Then an optimized memory organization strategy of reference frame data was put forward, aiming at avoiding row changing frequently in SDRAM access. Finally, based on the 3-stage pipeline structure, a shared cyclic search window memory was proposed: 1) data relativity between adjacent macro-block was analyzed, 2) and search window memory size was elaborated, 3) and then a slice based structure and the work process were discussed. Analysis and experiment result show that 50% of on chip memory resource and cycles for off chip SDRAM access can be saved. The whole design was implemented with Verilog HDL and integrated into a H.264 encoder, which can demo 1280*720@30 video successfully at frequency of 120MHz under a cyclone III FPGA development board.
Reliability Evaluation for Pressure Vessel Enterprises Manufacturing Execution System
Authors: Huang Zhi Hui , Kan Shu Lin , Yan Liang Wen , Li Jun , Chen Qi Hong
Published: March 2011

This paper discussed an integrating manufacturing execution system in pressure vessel industry. MES optimizations (MESO) is a reliability growth process which is applicable to manufacturing firms to unify the supply chain plan, the service and the production automation, transferring the company's service goal to the definite operation goal and realizing the multi-varieties, multi-batch, high quality and low-cost of the production demand. This system is a complex operating system which is composed of certain subsystems, and it could complete the specified function. Basing on the MES functional module, this paper has investigated on the enterprise productive plan and scheduling module to realise the reliability growth and product quality improvement as well as some key technical strategies. Combined with the quantitative evaluation and analysis method of the reliability engineering, the paper also made an analysis for the numerous resources entity and functional module of the overall system and formed a research subject on the theory relative to the reliability growth of the MES. The research on the case has a certain instruction function for the enterprise which is going to put the MES into effect.
Fast Measurement of Fruit Tree Nitrogen Status Based on Multi-Color LEDs and BP-ANN
Authors: Yang Hai Qing , Lv Gang
Published: March 2011

A new optical instrument for fast measurement of fruit tree nitrogen status was designed and fabricated. Multi-color LEDs were used as light source, a portable spectrophotometer as optical detector, and an optic fiber as light signal transmission medium. In the paper, the principle of using multi-color LEDs for the measurement of fruit tree nitrogen status was first introduced. Then, the method of using error back propagation artificial neural network (BP-ANN) for calibration modeling was elaborated. Reflective light intensities of Multi-color LEDs were taken as the incoming signals to BP-ANN. The structure of BP-ANN with three layers has been optimized to minimize its calibration error. In the test, total 200 leave samples picked from Huang-hua pear trees planted in three orchards with different levels of nitrogen fertilizing. Among them, 150 samples were selected randomly out for calibration set with the remaining 50 for prediction set. The result shows that correlation coefficient of R2 between predicted and measured values of nitrogen content reaches 0.93 with maximum prediction error less than 3.36(SPAD). The study suggests that the new optical method integrating multi-color LEDs with BP-ANN is promising for fast diagnosis of fruit tree mineral nutrition status.
Study on a Flexure Hinge-Based Micro-Displacement Platform
Authors: Ji Hua Wei , Wen Yong Qing
Published: March 2011

In recent years, a flexure hinged micro-displacement platform driven by piezoelectric actuator is being widely used in vibration suppression and micro positioning applications for its fast response, nanometer resolution, no backlash, no friction and bigger driving force. This kind of precision micro positioning system with a high displacement resolution and wide motion range has been required for industrialized applications for a long time. This paper discusses the design and the characteristics of a flexure hinge-based micro-displacement platform driven by piezoelectric actuator, a four-bar parallel mechanism and a monolithic symmetrical mechanism are adopted in the design. An analytical model is presented and a series of formulae for the static behavior of the platform are derived. Based on the theoretical analysis, the optimum design schema is put forward. The experimental demonstration to study the performance of the platform is described, and the method for reducing nonlinearity errors is proposed. The experimental results are in close agreement with those predicted by the theoretical analysis.
Static Var Compensator Technology and its Progress
Authors: Guan Zheng Qiang , Peng Jun
Published: March 2011

This paper introduced the fundamental types of Static Var Compensator (SVC) device and its typical circuit structures, analyzed the principles of SVC (TCR type), the typical structures of the main circuits and the corresponding control system, and the main functions of SVC devices. At last, the latest applications of domestic SVC devices in the field of electricity distribution network and the electricity transmission network are introduced.
Studies on Adsorption of Tyrosine on Multi-Wall Carbon Nanotubes
Authors: Feng Zhi Biao , Han Ren Jiao , Wang Jing Long
Published: March 2011

The thermodynamics and kinetics properties and mechanism of sorption process were studied for adsorpting tyrosine in aqueous solution with multi-wall carbon nanotubes (MWCNTs), and the adsorption isotherms at different temperatures were determined. The results showed that the adsorption of the tyrosine in aqueous solution obeys well with the Freundlich isotherm, The thermodynamic parameters indicated that the adsorption reaction was a spontaneous, exothermal and decreasing entropy process,and the adsorption process had an obvious physisorption characteristic.The pseudo-second-order equation provided the best correlation for the adsorption process, being in agreement with adsorption as the rate controlling step.
Voltage Control Principle Analysis of Permanent Magnet Generator
Authors: Ba Lian Liang , Chen Hui , Sun Chao
Published: March 2011

The permanent magnet generator has small size, simple structure, light weight, low cost, simple process, and eliminates the need for rectifier generator excitation windings and easy problems of the collector ring and brush devices, etc, are widely application. In recent years, a variety of good performance permanent magnet generators have been developed, but these generators are AC power output and generally low, when load changes the output voltage changes greater. Through the magnetism of permanent magnet generator, using good performance electronic components, a new type of intelligent electronic controller is developed; using the electronic regulator and the developed generator, the DC electrical power for vehicles required is solved.
Efficient Multi-Target Tracking Method Based on Fusion Morphology Filtering in Traffic Video Detection
Authors: Chen Wei Bin , Gu Zhi Yang , Zhang Xin
Published: March 2011

Aiming at the tracking real-time and accuracy problem of traffic videos, a efficient Multi-target tracking method based on Fusion morphology filter is proposed. The proposed Multi-target tracking method used by Morphologically Fused Tracking approach and combined with pyramid mean shift algorithm, quantizes the deterioration effects encountered on marble surfaces by providing the number, location and shape of deterioration spots. First the detection based on the application of morphological operator sequential filters by reconstruction with structuring elements of growing size. Then adopt a traditional tracking method such as adaptive pyramid mean shift, because it uses the pyramid analysis technique and can determine the pyramid level adaptively to decrease the number of iterations required to achieve region. We validate our approach on tracking examples using real video sequences, it can precisely partition and track the predetermined objects in video frames.
Mode I and Mode II Stress Intensity Factors Based on Crack Opening and Sliding Displacements
Authors: Ma You Li
Published: March 2011

It is necessary to study crack opening and sliding discontinuous displacement behavior under mixed-mode conditions because parts or structures of a machine with a crack maybe subject to stress from various directions. In this study ,therefore, using the cracks with different slant angle, which are made in circle stress of modeⅠwith stress ratio of R=0, the opening and sliding discontinuous displacements are measured ,so that modeⅠand mode Ⅱ stress intensity factors (KⅠ)mes and (KⅡ)mes at the crack tip are calculated. As a result, the measured stress intensity factors value of (KⅠ)mes from the fatigue crack with the slant angle β=60 deg. is smaller than the theoretical one (KⅠ). But for mode Ⅱ,(KⅡ)mes is about the same with (KⅡ). On the other hand, for the fatigue cracks with smaller slant angle β=45 deg.,(KⅡ)mes declined because of the crack-surface contact while (KⅠ)mes reduced.
Analysis for TCSC Steady-State Characteristics
Authors: Chen Ying , Chen Xiang Jie
Published: March 2011

When the TCSC steady-state operation, the thyristor turn-on and turn-off time is definite, the changing for TCSC electric capacity voltage and thyristor electric current is with the periodicity and symmetry.Thyristor controlled series compensation technology is fixed series compensation technology foundation, which is meet the needs for adaptation electrical power system operation control developing. With changes the triggering angle for thyristor suitably, then can realize the TCSC equivalent reactance fast, continuously and adjusts smoothly, provides the controllable series compensation for the system, as to achieve increases the system transmitting capacity, enhance the transition condition stability, the damping power oscillation, and the purpose for improvement system tidal current distribution. Although in the entire time axis, obtains the analytic expression for TCSC running status variable is difficulty, but as long as had determined the analytic expression for various electrical quantity in a power frequency cycle, according to the stable state movement's symmetry and periodicity, we can determine the steady state profile that in the entire time axis, and then analyses the TCSC electric circuit’s steady-state characteristic with the time domain computation method. In this paper, topological analysis for TCSC operation established by formula, and then carries on the time domain partition to the TCSC electric circuit solution, finally obtains the steady state fundamental frequency impedance model for TCSC. This paper steady-state characteristic analysis is mainly carries on the topological analysis method to the TCSC main circuit, then establishes the stable state base frequency impedance model for TCSC, and analyses the resonance question for TCSC simultaneously. Then studies TCSC the steady- state characteristic, and with modeling and simulation on them to do further research and analysis, and utilizes the solution method for transformation territory, namely applies the Laplace transform solution equation of state. Thus can be obtained the zero-input response and zero status response formula for system.
Yarn Feeding Compensation Algorithm and Implementation for Needbar Transverse Shifting of Carpet Tufting Machine
Authors: Chen Guang Feng , Wang Wei Bin , Sun Hao Chun , Li Qing Qing
Published: March 2011

The needle bar transverse shifting will likely form the stop mark liked gap on the tufted carpet. This paper proposed the yarn feeding compensation scheme and illustrate implement method in detail. Through analysis the change in yarn feeding path and loop pile forming of carpet tufting machine, construct the mathematical model of length change of yarn feeding in path and usage of loop pile forming while needle bar shifting. According to the mathematical model for yarn feeding compensation, calculate the additional yarn feeding requirement. Base on jacquard control principle, dynamic control the yarn feed actuator to drive the yarn feed roller to delivery additional length yarn, and produce loop pile with predefined pile height, Test result show the compensation is feasible.
Research on Multidisciplinary Modeling and Robust Control for Electric Power Steering System
Authors: Chen Guo Jin , Chen Hui Peng , Chen Li Ping
Published: March 2011

The first of all, the multidisciplinary modeling and analyzing for the electric power steering system (EPS) is made. The design method based on the model is proposed and the EPS control system is analyzed. On the basis of deeply observing and studying S/T singular value curves, a robust control algorithm of back-calculation is put forward. After analyzing the deficiency in the single-loop control structure of the EPS, the dual-loop control structure of the EPS is developed. The inner loop controller is designed using the single neuron PID algorithm, and the new robust control algorithm is proposed to design the outer loop controller. The simulation results in the frequency-domain S/T curves of the EPS system and the hand force step input of the steering wheel show that the designed controller is simple and effective, and has good robust stability and robust performance.
Static Strength and Fatigue Analysis of the Automobile Sub-Frame by FEA Simulation Method and Fatigue Test
Authors: Zhu Mao Tao , Wang Zhong , Zhang Wei Wei
Published: March 2011

Applying the method of finite element analysis, the finite element model of sub-frame of an automobile was built. With the aid of MSC software, longitudinal force operating mode which was pre-verified to be the most critical mode, was chosen for the static strength analysis and fatigue life simulation analysis of the sub-frame. Then the stress and fatigue life nephograms of the sub-frame were gotten. Comparison between finite element analysis and experiment result indicated that the finite element model can practically and properly reflect the real stress distribution of the sub-frame. Finally, based on this finite element model, some structure optimizations were done. After structure optimizations, the stress level was obviously improved. This method of FEA simulation together with experimental verification, significantly reduces the development cycle of new products, and is of important value in product design and quality improvement.
Nitrogen and Lanthanum Co-Doped TiO2 with Enhanced Photocatalytic Activity
Authors: Cong Ye , Qin Peng , Li Xuan Ke , Dong Zhi Jun , Yuan Guan Ming
Published: March 2011

Nitrogen and lanthanum co-doped nanocsystalline titania photocatalysts were prepared by a homogeneous precipitation-hydrothermal process. The photocatalytic activity of the prepared samples on photodegradation of rhodamine B in visible light irradiation was studied. The nitrogen and lanthanum co-doping could greatly improve the photocatalytic activity of titania in visible light irradiation, probablely due to a synergistic effect of co-doping. The nitrogen doping could narrow the band gap of titania and enhance the utilization efficiency of visible light, while the lanthanum doping could accelerate the separation of photo-generated electrons and holes. Furthermore, the lanthanum doping could increase the adsorption of organic pollutants on the surface of photocatalyst.
The Characteristic of Petroleum Contaminant Adsorption Materials and the Estimation of Adsorption Attenuation
Authors: Xia Yu Bo , Yang Yue Suo , Du Xin Qiang
Published: March 2011

Based on the experiment in lab and the investigation in study site, we have studied the adsorption of fine sand, medium sand and coarse sand which composes the aquifer. The different type's soil is different to the petroleum adsorption, the adsorptive capacity of fine sand is strongest, the coarse sand adsorption is worst. The adsorptive capacity of Sandy in 33.8% to 46.1%, adsorptive capacity of gravel is 9.2%. Freundlich model is more accurate to explain the sorption of the sands. The adsorption reaction of sand is very rapid, and it often only needs less than a day to reach adsorption reaction balance. The pollution levels are underestimated, and has been underestimated approximately 37.1% to 41.4%, and adsorption attenuation is a main action in study site.
Study on Static Assembly Interference Pressure between a Thin-Wall Flexible Cup and a Hollow Flexible Shaft
Authors: Wang Guo Ping , Chen Hua Ling , Qi She Miao , Wu Jiu Hui , Yu Lie
Published: March 2011

Distribution of static interference pressure between a thin-wall flexible cup and a flexible shaft fluctuates heavily along the axis of the cup and is quite different from pressure distribution of common interference styles. In this article, aiming at solving distribution of static interference pressure between a thin-wall flexible cup with much thicker bottom and a hollow flexible shaft, mechanical model and mathematical model of solving the problem were built based on classic thin shell theory. Special difference is that precise special solution of bending equation of thin cylindrical shell was used to substitute the special solution which is original from bending deformation of thin cylindrical shell in no moment status. And a brand new general solution, the relational expression between bending deformation of thin wall of the cup and distribution of the static interference pressure, was obtained. Then, a method used to solve the pressure distribution was presented by solving integral equation and applying superposition principle for the first time. Through using the method to solve an example and comparing calculated results with FEM results, it was proved that the method is correct and effective.
Real-Time Model Building of CNC System and its Schedulable Analysis
Authors: Li Jie , Guo Rui Feng , Shao Zhi Xiang
Published: March 2011

Task scheduling is an important research topic of real-time systems. Compared with the common real-time systems, CNC system has its own features. In this paper, we propose an adaptive task scheduling model for CNC system and analyze its schedulability. The model is suitable to the uncertainty of open computing environment and can accept the running of different types of tasks. It can compute band changes according to the latest changes of system resources and task requirements. It adjusts tasks’ priorities adaptively and makes the system run in optimal real-time performance. On the basis of CNC system, we will further optimize the model by studying the characteristics of periodic tasks and scheduling time overhead. Finally, this model will be used in practical CNC system.
A Method of the Image Emotion Notation Based Fuzzy Reasoning
Authors: Li Hai Fang , Qiao Xiao Yan , Men Li Huan
Published: March 2011

In this paper, we firstly get the Regions of Interest (ROI) using the Eye tracker and divide every image into two regions including ROI and Non- Regions of Interest (Non-ROI). Secondly, we extract the features of the two regions including ROI and Non-ROI, and get the whole features including texture feature and color feature. Finally, a fuzzy inference network model for image emotion notation using neural logic network is presented. The model describes how to classify the images into different emotions, and neural logic network is used to classification. The learning method proposed is multi-featured, and it allows taking into account the possible predictive power of a simultaneously considered feature conjunction. On the other hand, the feature space partition allows a fuzzy representation of the features and data imprecision integration.
Effects of Anodic Oxidation Process on Transmittance of Porous Alumina on Glass Substrate
Authors: Guo Pei Tao , Xia Zhi Lin , Xue Yi Yu , Zhao Li Xin , Wu Rui
Published: March 2011

Aluminum films were deposited on glass substrate by electron beam heat evaporation, and porous alumina films with high transmittance were prepared by means of anodic oxidation under different anodizing conditions in oxalic acid solution or phosphoric acid solution respectively. Thus the morphology of these porous alumina films was characterized by different structural. he optical transmittance spectrum at normal incidence over the 300~1000nm spectra region were obtained by spectrophotometer, which shows, in visible and ultraviolet light region, the transmittance of porous alumina films prepared in oxalic acid solution is much better than that prepared in phosphoric acid solution. The SEM analysis results showed that the pores are circular and uniform in porous alumina prepared in oxalic acid but irregular and non-uniform in that prepared in phosphoric acid, which affected the surface roughness of alumina films.
The Impact of Corrosion on the Mechanical Properties of Smooth Steel Rebar HPB235
Authors: Li Xiao Yong , Zhang Zhi Gang
Published: March 2011

The Impact of Corrosion on the Mechanical Properties of Smooth Steel Rebar HPB235 The impact of corrosion on the mechanical properties of steel rebar was examined. An experimental investigation was carried out in order to gain better insight of the effect of corrosion on the mass loss, strength, of smooth Steel Rebar HPB235 10 mm diameter steel bars that were artificially corroded for different corrosion levels. Corrosion is a negative contributor on the structural integrity of concrete structures and leads to degradation of the mechanical properties of steel rebar. In order to evaluate the influence of corrosion on the mechanical properties of steel rebar, an experimental investigation was conducted on smooth steel rebar of 10 mm diameters, and which were artificially corroded for 1, 3, 5 and 7 months. The laboratory tests suggest that corrosion duration had a significant impact on the strength degradation of the specimens. The mechanical properties of tensile test before and after corrosion indicated progressive variation and drastic drop in their values. The corrosion enhanced the damage and created pits and notches, resulting in stress concentration points and progressive reduction of strength. It gets the express formula nominal ultimate strength and nominal yield strength.
Drying Characteristics of Birch Tree Disk Impregnated with NaCl
Authors: Yang Liang Qing , Liu Yi Xing , Cai Ying Chun , Sun Qing Feng
Published: March 2011

This Study Investigated the Conventional Drying Characteristics of Birch (Betula Costata) Tree Disk Impregnated with NaCl Solution. the Results Showed that NaCI Content in Wood Was Depending on Impregnated Times, and the Relationship between them Was Linear Dependence. the Drying Duration of Treated Disk Was Longer by 25% than that of Untreated Disk. Na+ and Cl-, which Were Easy to Enter the Cell Wall and Combined with Microfibril, which Was the Major Reason for Enhancing Tensile Strength Perpendicular to the Grain and Restrain Cracks.
Thermal Performance Analysis for High-Speed Spindle of Horizontal Machining Center
Authors: Liu Zhi Feng , Chu Zhong Hua , Cheng Qiang , Liu Guang Bo
Published: March 2011

In order to show the thermal performance of spindle by rule and line, firstly, this paper presents a three-dimensional finite element analysis model for thermal analysis of high speed spindle; Then by studying the heat generation and radiation mechanism of the spindle, temperature distribution has been analyzed accurately and intuitively under the heat-stable condition based on the three-dimensional model; Finally effective actions have been proposed to improve the condition of the spindle's heat generation, and thus can guarantee the highly effective characteristic of the spindle in machining process.
Research on State of Charge Estimation of Lithium Iron Phosphate Battery Used on Electric Vehicle
Authors: Liao Cheng Lin , Wang Li Ye , Wang Li Fang
Published: March 2011

Lithium iron phosphate battery (LiFeO4 battery) is a very promising power battery. The research on LiFeO4 battery and the realization of its battery management system are very significant for the development of Electric Vehicle. Based on a large number of test data, the equivalent circuit model of battery is established, the parameters of the battery model are obtained using least-square method, and then the improved SOC estimation algorithm is studied in simulation conditions. All of the battery management algorithms are achieved in simulation model. The C code is generated from simulation model and applied in battery management system. Finally, the battery management algorithms are verified by simulation and hardware-in-loop test and bench test.
The Method to Construct Elementary Dependent Function Whose Discussion Field is an Infinite Interval and Positive Field Finite
Authors: Li Qiao Xing , Chen Shi Cheng , Li Xing Sen
Published: March 2011

Extension theory are widely used in many fields such as machinery, manufacturing, meterials and automation. Dependent function is the core of extension set. On the basis of extension distance between the point and the infinite interval, we construct the formulas of location value and the corresponding elementary dependent function whose discussion field is an infinite interval and positive field finite, and get some properties. The proposed function allows extension theory in the areas of materials science and engineering science with a broader scope.
Effects of Plating Bath Composition and Operating Condition on Properties of Electroless Coating for High Strength Aluminum Alloy
Authors: Qu Shao Min , Huang Xiao Ting , Cai Gang Yi
Published: March 2011

The table of L9 (34) of orthogonal design was adopted in the experiment. The optimal formulation and process conditions of electroless nickel plating on high strength aluminum alloy were determined. The influences of bath composition and operating conditions on the hardness and deposition rate were analyzed and discussed. The experimental results show that the optimal plating formulation were obtained, which were consisted of nickel sulfate hexahydrate(25g/L), sodium hypophosphite(20g/L) and sodium acetate(15g/L). The operating conditions are as follows: 80~85°C, pH value 5.0. The coating structure is more homogenous and compact, and the coating has good brightness. Meanwhile, the hardness is up to 376.8HV, and the deposition rate is 17.2μm/h. The order of effects on hardness is pH value, sodium acetate, sodium hypophosphite and nickel sulfate concentration in turn. The hardness of coating decreased after heat treatment on low temperature. When the temperature exceed 200°C, the hardness increased with temperature rising and reached the peak value at 400°C(565.3HV).
Anti-Sticking Effects of Cr-N and Zr-DLC Films on Microinjection Molding for LGP Applications
Authors: Yang Yu Sen , Huang Wesley , Huang Ming Shyan , Huang Cheng Fong
Published: March 2011

Sticking problems in injection molds are a significant challenge in product quality control. Molds are usually coated with a surface ceramic layer to prevent sticking problems. This study presents two films deposited on light-guide plate microinjection molds using an unbalanced magnetron sputtering process to investigate the anti-sticking property of molds. The deposited film materials include chromium nitride (Cr-N) and zirconium containing diamond-like carbon (Zr-DLC). The anti-stick film properties examined here include water contact angles, the coefficients of friction, as well as product flatness for the practical injection process. The results show that the performance of Cr-N films involve water contact angles at 111.4 degrees and a coefficient of friction at 0.742, respectively. The performances of Zr-DLC films involve water contact angles at 86.2 degrees and a coefficient of friction at 0.106, respectively. For the practical injection process, the deposited Cr-N films have better anti-sticking property than do the deposited Zr-DLC films.
Similarities between Wordsworth and Emerson in Romantic Literature
Authors: Suo Juan Juan , Li Yan Cang
Published: March 2011

In the history of English and American literature, Romantic Period is so important that cannot be ignored by people. A lot of good writers appeared and their famous works (especially in the field of poetry and prose) were produced. Though many differences between Great Britain and America exist, and the thoughts of writers between the two countries are so different, they have some common senses of Romanticism. This should not be forgotten. In order to point out this problem deeply, we have to pay an attention to the history background of the two countries, to the author’s biography and to the works of them completely. Some important writers such as Wordsworth and Emerson are discussed detailed in the paper.
Numerical Simulation for the System of Ordinary Differential Equations
Authors: Cai Xin
Published: March 2011

Two coupled small parameter ordinary differential equations were considered. The solutions of differential equations will change rapidly near both sides of the boundary layer. Firstly, the properties were studied for differential equations. Secondly, the asymptotic properties of differential equations were discussed. Thirdly, the numerical methods with zero approximation were constructed for both left side and right side singular component differential equations. Finally, error analyses were given.
Regulatory Effects of High Glucose on the Expression of Toll-Like Receptor Gene and Cytokine Production in Human Peripheral-Blood Mononuclear Cells
Authors: Lan Jing Sheng , Dong Yu Kang , Cai Xing Ming
Published: March 2011

To investigate the regulatory effects of high glucose on the expression of Toll Like Receptor(TLR) Gene and the level of tumor necrosis factor(TNF)-α and interleukin(IL) -6 in human peripheral-blood mononuclear cells . Methods The alterations of TLR1～10 mRNA expression in human peripheral-blood mononuclear cells were quantitated using real-time quantitative-polymerasechain reaction. The level of TNF-α and IL-6 were measured by Enzyme-Linked Immuno Sorbent Assay . The anti-TLRmAb were used to block the mononuclear cells 30 min, high glucose was used to stimulate the cells. Rusults high glucose strongly up-regulated the expression of TLR3、5 mRNA but the expression of the other sub-TLRs weren’t changed .The concentrations of TNF-α、IL-6 were 86.40±8.46 and 874.66±92.84 in high glucose group, all significantly higher than that the control experiment (60.49±6.80 and 541.80±81.08 , all P<0.01), The anti-TLR3mAb and anti-TLR5mAb were used to block the mononuclear cells , The concentrations of TNF-α、IL-6 (72.41±8.52 and 700.59±84.88) were lower than that in the high glucose group, all P<0.05 . Conclusion high glucose may be endogenous ligand of TLRs and high glucose can regulate the release of inflammation cytokines from human peripheral-blood mononuclear cells through TLR signal way.
Force Analysis on High-Rise Building with a Transfer Story Stress under Seismic Action
Authors: Liu Ying Li , Yan Te Liang , Li Jian Fei , Jiang Zhen
Published: March 2011

It refers to the main form and the mechanical characteristics of transfer structure. It analyzed the practical architectural mechanics basing on finite element theory. Using the finite element analysis software, it adopts three solutions and establishes models, then analyzes under seismic action. The results show that, the three transfer structure forms can be applied to the project without consideration of function of structure. The results of this study provides theoretical basis for high-rise building design with transfer story.
Fuzzy Scatter Matrix Based Class Separability Criterion
Authors: Cao Su Qun , Bu Yun Feng
Published: March 2011

Scatter matrix based class separability criterion is commonly used in supervised feature extraction. But calculations of scatter matrixes depend on labeled data, so this criterion can not be used in unsupervised pattern. This paper presents a method to extend scatter matrix based class separability criterion to unsupervised pattern by fuzzy theory. The basic idea is to optimize the defined fuzzy Fisher criterion function to figure out fuzzy scatter matrixes in unsupervised pattern. Based on the obtained fuzzy between-class scatter matrix and fuzzy within-class scatter matrix, a novel class separability criterion based unsupervised feature extraction is proposed. Experimental results on its applications in UCI datasets show its effectiveness.
Error Test Analysis of a Taxi Meter
Authors: He Hong , Zhang Shi Pu , Zhang Da Jian , Hou Ming Feng
Published: March 2011

Taximeter measurement error is the vital relationship between the interests of drivers and passengers. In order to deal both fair and just, the need for regular taxi meter test vehicle is necessary, this time from the meter of the taximeter and the vehicle test meter error of the meter on the taximeter areas were more comprehensive pricing error analysis, to improve the efficiency and accuracy test.
The Simulation of Burg Algorithm for AR Model Power Spectrum Estimation
Authors: He Hong , Huang Xing , Liu Fang , Zhang Da Jian , Hou Ming Feng
Published: March 2011

Classical spectral estimation, whether the direct method or indirect method, are available to fast Fourier transform method, their concepts are clear and easy to understand, its resolution is proportional to . This paper describes the commonly used in modern power spectrum estimation based on AR model Burg algorithm, MATLAB simulation shows this method to estimate the power spectrum curve, results showed that the Burg algorithm in spectral resolution and model in the order of sub-option square than the self-correlation algorithm has obvious advantages.
Robust Reliability Design for Networked Control Systems Based on Information Scheduling
Authors: Huo Zhi Hong , Zheng Yuan , Qu Bo
Published: March 2011

This document explains and demonstrates how to prepare your camera-ready manuscript for Trans Tech Publications. The best is to read these instructions and follow the outline of this text. The text area for your manuscript must be 17 cm wide and 25 cm high (6.7 and 9.8 inches, resp.). Do not place any text outside this area. Use good quality, white paper of approximately 21 x 29 cm or 8 x 11 inches (please do not change the document setting from A4 to letter). Your manuscript will be reduced by approximately 20% by the publisher. Please keep this in mind when designing your figures and tables etc.Networked Control Systems (NCS) are systems with at least one loop closed through data networks. The existence of real-time network in the feedback control loop makes it more complex to analyze and design the NCS. In this paper, the networked control systems with network-induced delay, parameters uncertainty and packet loss which are induced by the limited bandwidth of communication networks is modeled, consider the sensors that can’t send information to controller and the actuators that can’t receive information calculated and sent by the controller, the integrity design of the networked control system with sensors failures and actuators failures is analyzed based on information scheduling and robust fault-tolerant control theory. Sufficient conditions, based on Lyapunov function method, are established in terms of linear matrix inequalities (LMIs). When these LMIs are feasible, the explicit expression of the controller can also be characterized. After detailed theoretical analysis, the simulation results is provided, which further demonstrated the proposed scheme.
The Performance Analysis of Electro-Rheological Damper
Authors: Chen Yong Guang , Yan Hua
Published: March 2011

Electro-Rheological (ER) fluid is a smart material. It develops a new path for automotive semi-active intelligent suspension system. The damping force of ER damper can be controlled by applied electric field. Applying the theory of rheodynamics and hydraulic theory, a relationship of damping vs. vibration velocity, electric field strength and gas-filled pressure has been set up. There are three sections of damping force, background damping force of a fluid viscosity, electric damping force of applied electric field and pressure of gas. A new gas-filled ER damper is developed. The main structure parameter of influencing ER damper performance are discussed, some design principles of ER damper are given.
Investigation on Mechanical Behaviors of Shape Memory Alloy Torsion Rod
Authors: Zhou Bo , Wang Zhen Qing , Liu Yan Ju , Leng Jin Song
Published: March 2011

DSC test is carried out to determine the phase transformation temperatures of a NiTi SMA, which include martensitic starting temperature, martensitic finishing temperature, austenitic starting temperature and austenitic finishing temperature. The mechanical behaviors of shape memory alloy (SMA) torsion rod are investigated by using Zhou’s shear constitutive equation of SMA and the theorem of circular shaft in mechanics of materials. A critical torque equation is developed to describe the relationship between the martensitic phase transformation critical torque of SMA torsion rod and temperature.
Performance Evaluation of Construction Materials Management in Expressway Project
Authors: Chen Yun , Li Jing Jing
Published: March 2011

Based on the characteristics of construction materials management of expressway projects, this paper analyzes the operation processes of the construction materials combined with operation management contents of all participants. Then it builds the index system of evaluation matrix, construction materials operation processes-participant. It establishes the AHP model of performance evaluation, and evaluation the performance from the three dimensions of operation phase, participants, and projects. Through the empirical study on LY expressway of Hunan Province, this paper drew up the performance evaluation conclusions which are in line with the project construction.
Materials Formation Mechanism and Experimental Verification of Micron Long Fiber
Authors: Yang Chun Mei , Ma Yan
Published: March 2011

In the paper the theory of cutting wood fiber on micron-level has been put forward, that is the cutting power of micron flake wood fiber is much smaller than the mechanical power consumed by grinding. Therefore, the manufacture method for micron flake wood fiber is a kind of way of materials preparation, which can economize energy, decrease in consumption and pollution. From the theoretical analysis, only a reasonable cutting-arrangement on direction can significantly reduce the power. So in the condition of reducing power, relying on pure shear to fracture fibers in tissue is the best effort, at the same time through the vertical ultra-high-speed cutting in grain, the micron filament fibers will be cut out. The influences produced by various factors for the formation of flake fibers have been verified through testing, including the improved tool material, the wood grain, the cutting speed and the improvements for locating specimen.Through the improved method for sluggish wood-fiber cutting, not only does this method reduce power consumption, but also decrease the probability of fiber cut off and substantial increase fiber’s length and quality. Moreover, after these flake fibers having been rescheduled, the elastic modulus of fiber MHFB hot pressed out can reach 5171Mpa, and the grip force of that can reach 1933N.
Calculation on Interaction between Ozone and Carrier to Form Ozonic Compound
Authors: Min Xin Min , Liu Hong Fei
Published: March 2011

It has some encouraging results to use ozone in medicaments, treatments and so on. As it is usually in gas state, unstable and strong oxidability, ozone is difficult to be stored and used commonly. It is the key matter in use of ozone commonly or conveniently that the carrier material and preparation response conditions are studied to make the bond strength between ozone and carrier to be felicitous and with the proper velocity to release ozone from the ozonic compound. Ozonic compound and related single molecules were calculated to study the interaction between ozone and carrier to form ozonic compound. The carrier and ozonic compound are designed from the calculations. The stability of the ozonic compound, or the bond strength between ozone and carrier are controlled felicitously to release ozone from the ozonic compound with proper velocity. Ozone antimicrobial can be composed and used conveniently, especially for common families. There are some characteristics of ozone antimicrobial or ozone, such as universal applicability, efficiency and rapidity, security, strong penetrability, no drug resistance and sterilization and treatment simultaneity.
Study on Impact of Technology Spillover on Technology Transfer and Technology Innovation in Host-Country Firms
Authors: He Wei
Published: March 2011

With technology becoming the key factor for national economic growth, as important way for developing countries to obtain technology, international technology transfer is attached great importance to. This paper makes study on the transmission mechanism of technology spillover, technology transfer and technology gap based on Blomstrom and Nakamura’ models. The results show that the level and pace of technology transfer depends on host-country firms’ independent innovation, technology gap, and technology transfer costs. Operating in the segment market without a direct competition with multinational corporations, implementing the product differentiation strategy combing with local demand and customer-orientation, and creating effective competition environment are the inevitable paths for host-country firms to attract multinational technology transfer.
A Study on Effect of Friction Coefficient on Failure Process of Film
Authors: Zheng Jin Hua
Published: March 2011

Titanium substrate specimen was sputter-coated with SiC or CoCrNi-oxide thin film and the wear test was carried out by using a “ball-on-disk” testing machine. The semi-circular parallel cracks appeared on the film surface with the angles of 45 degree to the sliding direction of SiC ball and the delamination of film quickly occurred after cracking. In the same study we have discussed the reason of cracking and delamination in film by FEM [1], and made a special effort to the effect of friction coefficient on failure process of film in this paper. With the increase in friction coefficient the high-stress area of the maximum principal stress σ1 has the trend to move towards the central trail of back-contact-edge, while the positive minimum principal stress σ3 also appears at more extensive range, the higher friction coefficient causes the higher stresses and makes the cracking and delamination more easily, where the cracks can be initiated much more near the center trail.
Effect of Borax Content on Composition and Microstructure of Boride Layer by Electrodeposition
Authors: Yang Hai Li , He Ning , Tang Guo Zhang , Li Yun Gang , Zhang Yu Zhu
Published: March 2011

Boronizing of silicon steel is performed by electrodeposition in KCl-NaCl-NaF-Na2B4O710H2O molten salts with different amounts of borax. The effect of borax content on composition and microstructure of boride layer is studied. The compositional depth profile of boride layer is measured using the glow discharge spectrometry (GDS) and the depth from the surface to the substrate is taken as the layer thickness. The surface morphology is studied by atomic force microscopy (AFM). It is found that the thickness of the boride layer reached maximum values when the borax content is 0.05mol. The roughness decreases with raising borax content from 0.01 to 0.05mol while the further increase of borax content from 0.05 to 0.1mol results in increase of roughness. The boride layer formed at borax content 0.05 mol shows smallest values of surface roughness.
Study on Dynamic Characteristics of the Engine Mounts System Based on the Virtual Prototype
Authors: Hu Li , Sheng Yang , Xin He
Published: March 2011

The Virtual Prototype of Engine Mounts System of a Certain Bus Was Established Based on ADAMS. and the Dynamic Characteristics of the System Was Simulated and Studied. and the Conclusion of the Damping Characteristics Was Drawn. it Is Shown that Damping Characteristics of the Engine Mounts System Can Be Improved Greatly and Resonance Should Be Avoided when the Parameters of Mounts Are Chosen. at the same Time Large Deformation Should Be Limited under Dynamic Load.
Development & Application for a Visual Casting Process CAD System of Copper Alloy
Authors: Li Hui , Ge Xiao Hong , Liao Dun Ming
Published: March 2011

On the basis of AutoCAD, a visual casting process CAD system for copper alloy, using VC++.NET 2002 and re-development tool ObjectARX, is developed by key technologies including exchanging data between Access and MFC ODBC, graphics preview and real-time rendering. This system also accords with the national casting standards & requirement of a corporation, can realize real-time feedback in casting process design and improve the efficiency and accuracy availably.
Diagnosis Technique Based on BP and D-S Theory
Authors: Mo Qiu Yun , Cao Jie , Gao Feng
Published: March 2011

This paper constructs a common data fusion framework of fault diagnosis, by combining local neural networks with dempster-shafer (D-S) evidential theory. The RBF neural network is proposed as a local neural network of the fault pattern recognition, and its input vectors are extracted by the wavelet packet decomposition of various frequency energy. Then, the signal of each sensor separately has a feature level fusion. This method is effective, verified by experiments. The given decision level fusion is based on combining the features of the neural network and the D-S theory, and experiments show the results of the fault diagnosis are more accurate by this method.
An Extraction Algorithm for Image Edge Based on Multifractal Analysis
Authors: Li Da Hui , Diao Ming
Published: March 2011

In the paper, the first introduced multifractal features of image, and defined some measures; then described procedures of the edge extraction algorithm; the final analyses the results of experiment and selection criteria commonly used in multifractal, proposing a different multiple fractal image, the algorithm has excellent effect on edge extraction, highlights the detail information of the main edge.
Strength Reliability Analyses for Bus Body Frames Based on Monte Carlo Method
Authors: Zhang Da Qian , Zhang Tian Xia , Zhao Wei Tao , Zhang Wei Ping
Published: March 2011

Compared with traditional deterministic structural static analysis, it is more practical that strength reliability analyses for bus body frames involving uncertainties in material and in geometrical parameters. In this paper, basic theories of structural reliability combined with bus driving characteristics, the concept of strength reliability for bus body frames and calculation method based Monte Carlo method are proposed. The formula of sensitivity of performance function to random variables is derived. Strength reliability figured for a bus body frame is 0.999626851 in the case of running with uniform velocity. Main random variables which effect on strength reliability are found via sensitivity analysis. All of works done can be applied to bus body frame designs based reliability.