bluuebunny/crossref_metadata_2025 huggingface dataset:
An Introduction to EMG Signal Processing Using MatLab and Microsoft Excel
Authors: Robbins Daniel
Published: July 2014

This chapter provides the reader with an introduction to the fundamentals of biological signal analysis and processing, using EMG signals to illustrate the process. The areas covered within the chapter include: frequency analysis using the Fast Fourier Transform, identifying noise within a signal, signal smoothing via root mean square (RMS) processing and signal filtering with both low-pass and high-pass filters. Guidelines for the application of the processes covered are included in conjunction with step by step examples using both MathWorks MatLab and Microsoft Excel software. Following the examples therefore allows the reader to practice the processes described to promote and reinforce their learning.
Information and Communication Technology Projects and the Associated Risks
Authors: Iyamu Tiko , Sehlola Petronnell
Published: July 2014

Organisational reliance on Information and Communication Technology (ICT) continues to increase. This is informed and triggered by the premise that ICT will help them to yield solutions that will fulfil or exceed their expectations, thereby making the organisation realise the required return on investment. In order to realise return on ICT investment, many organisations deploy ICT solutions through projects. However, not all ICT projects realise their goals and objectives, due to associated risks. Unfortunately, risks are never easy to identify or managed. This chapter explores and examines the risks factors in the deployment of ICT projects in organisations. Using the case study method, the research employs actor-network theory in the analysis of the data to understand the factors that manifest themselves into risks during the deployment of ICT projects in organisations. The study reveals that factors, such as knowledge base, performance contract, and communicative structure, are used to enable and support and at the same time to constrain the deployment of ICT projects in organisations.
Numerical Prediction of Flow Structure and Heat Enhancement with Different Dimple Depth
Authors: Liu Jing , Li Jie
Published: July 2014

Aim at finding the relation between flow structure and heat enhancement, this paper change the dimple depth to print diameter from 0.06 to 0.3, with an interval of 0.02, and keep the print diameter constant. Through vortex structure analysis and Nu number integration, find out that: Vortex structure varies with dimple depth. Shallow depth dimple induces horseshoe vortex; middle depth dimple induces symmetric tornado-like vortex; deep depth dimple induces tornado-like vortex. Heat enhancement is closely related to vortex structure. Where spiral separation focus point exists, there the lowest Nu/Nu0 exists. Flow impingement at the windward side of dimple and new viscous layer generation at immediate plane after the dimple enhance heat transfer. The highest Nu/Nu0 exists in the sharp rearward dimple edge. From Fig 6, the deeper the dimple is, the higher the average Nu/Nu0 is, so does the pressure drop. But from 0.06 to 0.2 dimple, heat enhancement increased because of vortex structure changed. From 0.2 to 0.3 heat enhancement increased because of the increased area.
Topology Optimization Design of Gearbox Housing in Electric Bus
Authors: Ling Ling , Huang Yong
Published: July 2014

The virtual prototyping technology in corporation with a finite element analysis was first used to analyze the strength and stiffness of gearbox casing in an electric bus. On the basis of this analysis, the topology optimization technology (TOT) based on the variable density method was introduced into the design of gearbox casing which takes the minimized total flexibility of gearbox as the objective function, the density of each cell as the design variable and the volume as the design constraint. Then, according to the results of topology optimization and the requirements of manufacturing process, the structure of gearbox casing was designed in detail. Finally, the stress analysis of the housing model of the final design was carried out. The results show that the optimized housing not only meets the design requirements of stiffness and strength, but also reduces its quality, which can make the performance of gearbox achieve optimal.
Numerical Analysis of Multiscale Progressive Damage for Solid Rocket Motor Composite Shell
Authors: Zhao Jiu Ling , Gao Bo , Wang Xue Ren , Zhou Bao Shun
Published: July 2014

In this study, the evolution of laminates in four damages are analyzed based on the established multiscale reinforced composite material damage model from a single cell model, single plate model to multilayer fiber model of carbon fiber. The validity of the model is verified by numerical simulation of laminate tensile test. Based on the established model to calculate the [±26/902]3 damage evolution of SRM due to withstand pressure in the straight section and the results show that: the calculation is consistent with the experimental results of displacement, and the role of a variety of common damages result in reduced performance of the housing.
Design and Research on Ballast Anti-Heeling System for the Crane/Pipe-Laying Vessel Based on DP3 Requirements
Authors: Sun Zeng Hua , Wang Dan
Published: July 2014

To ensure the stability of the crane/pipe-laying function in different working conditions, the redundancy of ballast system of a certain crane/pipe-laying vessel is designed according to the relative requirements of the third class dynamic positioning (DP3) in regulations and the characteristics of the vessel arrangement. The DP3 requirements of the redundancy of ballast system for the vessel are satisfied by means of the arrangement of ballast pumps and the redundancy configuration of the piping systems. Simultaneously, the ballast anti-heeling system is able to fulfill different working conditions.
Experimental Study of Viscous Droplet Impacting on Horizontal Moving Films
Authors: Fan Guo Jun , Liu Zhao Miao , Shen Feng
Published: July 2014

The phenomena and behaviors of single droplet impacting on horizontal moving film have been studied by visual experiments, and the effects of viscosity and weber number (We) on the droplet impacting are analyzed. The experimental liquid is glycerol-water mixture with the volume fraction of glycerol 50%, 40%, 30%, and 10% respectively. We vary among 200 and 500. The results indicate that a higher viscosity plays an important role in hindering to droplet splashing, and the critical viscosity of splash increases with the increasing We. When We<242, the viscosity does not play a significant role to the height of the crown and the mid-jet. But when We>320, the jet height increases with the increasing We. The crown height of low viscosity liquid impacting significantly exceeds that of the high viscosity.
Mechanics Analysis of Reduction Case Based on the Finite Element Method
Authors: Wu Bing Hui , Xi Jian Jun , Wu Bing Qi
Published: July 2014

Reduction is a main part in the heavy transmission device, and the case of it is the bearing body. It may lose efficacy if the strength is not enough due to too much load on it. Thus, it is very important when its stiffness improved greatly but its weight increases slowly. The tradition method is very difficult to accomplish mechanics analysis because the case shape and force condition on it is very complex. The finite element method is employed here and parameterized model is built. The weakness part was found out according to the results. The parameterized model provides the basis for the optimization of reduction case.
Flight Characteristic Analysis of Fighter Aircrafts with Twin Jet Engines under the Asymmetric Thrust
Authors: Han Feng Bo , Cao Zong Jie , Chen Bai Song , Wei Xiu Ling
Published: July 2014

Abstract:When one side jet engine of the twin jet engines in aircrafts fails, the aircrafts will sideslip relative to y-axis of aircrafts. The nose of the aircrafts will drop and the flight speed of the aircrafts will decrease. In order to maintain the balance of the aircrafts to ensure the safety of flight, the pilot has to carefully manipulate the aircrafts according to the actual situation and the control action. In this paper, dynamic characteristic of the aircrafts with twin jet engines under asymmetric thrust of aircrafts has been analyzed. Several manipulation methods of aircrafts with both the sideslip and bank were discussed to guarantee flight safety of aircrafts with asymmetric thrust. The control measurements to keep the balances of aircrafts were given to manipulate the aircrafts. In this situation, aircrafts will turn back as soon as possible and land at the nearest airport.
Aesthetic Evaluation of Furniture Design Based on ANP Method
Authors: Chen Ming , Lyu Jian Hua
Published: July 2014

With the increasing growth of furniture industry, it has led to much attention on scheme optimization and selection. An approach based on Analytic Network Process (ANP) is proposed in order to improve the evaluation system of furniture design, which is comprised of aesthetic indexes of product design schemes, as well as to select the best scheme and guide the improvement of the best scheme in case study. ANP method is used to obtain the optimal weight performance of the correlative indexes by using SuperDecisions software program, after establishing aesthetic index system by Expert Questionnaire Method. The final result of index weights shows form, color, and ergonomically designed are the most important indexes, which are 0.286559, 0.185002, and 0.132272, respectively.
Simulation Analysis of Firing Dynamics on a New Heavy Machine Gun
Authors: Fan Zhi Teng , Wang Rui Lin , Li Tao
Published: July 2014

In order to study the automation dynamics of a certain type of Heavy Machine Gun, a virtual prototype model is established based on analysing the structural characteristics and movement principle. The dynamics model is created by ADAMS, including determining the boundary conditions of shooter and soil. The movement characteristic of bolt in rounds of continuous firing is analysed. Choosing the velocity of bolt as checkout targets, analysing the simulation result and test data comparatively, the feasibility of model is confirmation. So the foundation of further movement analysing, parameter matching and structural optimization about the rifle is laid.
Research of the Salinity Effect on Nail-Holding Power of Dimension Lumber
Authors: Que Ze Li , Wang Yue , Yang Ling , Zhu Xu Na , Wang Yong Bing
Published: July 2014

This article mainly studied the effect of salinity on the nail-holding power in wood construction. The results showed that: in saline solution, the holding power of nails was smaller than that in purified water condition. With the increase of salt concentration, the surface and side nail-holding power of the wood specimens would both decline, but the differences between salinity treatments would be not significant. However, compared to the surface and side nail-holding power, the power on the edge was generally smaller and the difference was not obvious in the treatment of different salt concentrations. In the same concentration of salt environment, with the extension of the processing cycle, the performance of holding power of nails showed a downward trend, expect the temporary rise in the middle.
Research on Process in Laser Cladding of Width-Changing Single Layer Based on Coaxial Inside-Beam Powder Feeding
Authors: Ding Chun , Fu Ge Yan , Shi Shi Hong
Published: July 2014

In this paper, coaxial inside-beam powder feeding technique was used. According to theoretical analysis and the single layer cladding experiments, the initial parameters and experimental scheme of width-changing layer cladding based on the coaxial inside-beam powder feeding were confirmed. The theory model of piecewise transition was established. The real-time control of scanning speed and the defocus amount to carry out the experiments were used while the laser power and powder feed rate were not changed. Finally, the layers with uniformly width changing and stable layer height were achieved. Performance analysis showed that the formed layer had smooth surface and a high rigidity without powder paste outside the surface, and the size was basically as same as the design value. Its microstructure was small and dense and good metallurgical combination was formed between part and substrate.
Study on the Thin Wall’s Accumulation of Inside-Laser Powder and Wire Synchronization Feeding
Authors: Gu Chuan Xiang , Shi Shi Hong , Fu Ge Yan
Published: July 2014

This paper uses the method of inside-laser powder and wire synchronization feeding and designs the accumulation scheme of a thin wall. By optimizing the process and analyzing the thickness, hardness and microstructure, the wall accumulated by Inside-Laser Powder and Wire synchronization Feeding shows less cracks and good mechanical properties and fine microstructure.
Study of Q345 Steel under Tensile Failure with Bilateral Parallelcracks
Authors: Chang Yan Jun , Zeng Shuang Feng , Zhang Ke Shi , Li Zhuo
Published: July 2014

The parallel crackswere prefabricated on both sides of theQ345 steel specimensand the tensile failure tests were performed.The effects of parallel crack spacing and crack length on the crack propagation behavior were studied and the fracture modes were investigated with electronic scanning microscope.The finite element analysis of tensile fracture process was also fulfilled based on the ductile metal damage theory, and the crack propagation and the crack stress field evolution around the crack tips were studied. The simulation was agreed with experimental results, and these analysis shows that the crack propagation related with double crack tip of horizontal distance ratio. When the longitudinal and horizontal distance ratio of the two crack tip is less than 1, the linkage between two cracks occurs, or two cracks expand independently. Simulation analysis shows that cracks deflect and connect with another one when the two high Mises plastic stress zones are met with each other; on the contrary, cracks propagate separately.
Test Analysis of MSD Crack Propagation Structure in 2524-T3 Aluminium Alloy
Authors: Zhang Jian Ping , Zheng Xiao Ling
Published: July 2014

The MSD phenomenon is an active research topic of the academic and the aviation industry. This paper puts emphasis on the multi-crack propagation with interactive effects of MSD structure in 2524-T3 aluminium alloy. Material tests were accomplished for the crack growth parameters. The multi-crack propagation tests were conducted on specimens containing 5-similar-details, and the corresponding fatigue crack growth analysis with a fast prediction of crack growth life method were accomplished with finite element software. The comparison of crack tip position vs. load cycling from the test and the numerical simulation shows that the numerical simulation can give a good agreement to the experiment result.
Improved Wavelet Thresholding for CCD Measurement Image Denoising
Authors: Zhan Jie , Li Zhen Xing
Published: July 2014

An improved wavelet thresholding method is presented and successfully applied to CCD measuring image denoising. On the analysis of the current widely used soft threshold and hard threshold, combining characteristics of the CCD measuring image and use of local correlation of wavelet coefficients, an improved threshold function is proposed, and the denoising results were contrasted among different threshold functions. The simulation results show that adopting the improved threshold function can acquire better filtering effect than traditional soft threshold and hard threshold methods.
Study Design on Anti-Fake Detection Method for CNY100.00 Banknote
Authors: Meng Yu Qiao
Published: July 2014

With the development of Chinese economy, China has become one of the largest countries in terms of foreign trade in the world, and CNY has also ranked second among the currencies all over the world. Thus, the anti-fake and detection technologies for CNY banknotes are also confronted with new challenges. In this paper, ultraviolet-light currency detector and transmission detector, which are two types of simple but practical electronic instrument, are designed by means of the analysis and research on the different optical properties of genuine and fake CNY banknotes respectively. They can be designed with low cost, have a good effect in detection, and may be widespread easily.
Test Technique Research for the Hinge Moment of a Grid Fin in High Speed Wind Tunnel
Authors: Chen Jian Zhong , Liu Pei Qing
Published: July 2014

In order to study the test technique for the hinge moment of a grid fin in wind tunnel, a platform based on half model support technique was established in FL-23 and FL-31 wind tunnel in China Aerodynamics Research & Development Center (CARDC). The platform developed a wind tunnel test balance, rudder control system and the aerodynamics measurement system. This test technique was important to optimize aerodynamic configurations of a grid fin, design or evaluate the capability of the rudder control system. Nomenclature
Structure Optimization of a New Micro-Hotplate Designed for Gas Sensor
Authors: He Yue , Bi Ke , Li Yu , Li Hai Ying , Guo Xin , Zhang Xiao Bo , Liu Li
Published: July 2014

Thepaperpresents the design of a new micro-hotplate.Useplatinum filament as electrode material, Si and SiO2assubstrate materials.Through the structure optimizing analysis, the micro-hotplate owns the best temperature distribution, when the thickness of Si, the front and rear SiO2are set to 125, 25 and 150 μmrespectively, the width of heating electrode is 50μm and the measuring electrode is withoutinterdigital electrode. The new micro-hotplate is benefit for the improvement of sensitivity and overall performance of the sensor.
Map-Based Navigation of a Mobile Robot Using MRPT Modules
Authors: Kanjanawanishkul Kiattisin
Published: July 2014

The aim of this work is to achieve a navigation task for the ED-7273 mobile robot consisting of heterogeneous hardware components. These components are controlled by software modules developed by different manufactures and they use different communication mechanisms. Software modules are also required to process sensor information and control actuators for performing useful tasks. Although modular design has several advantages, it raises some integration problems, such as interconnection, communication, and configuration. These problems can be solved by using middleware. Thus, we integrate the navigation module of MRPT middleware with our Robot APIs in this work, while the long term goal is to develop customized middleware for educational and research robots. As seen in the experimental results, our map-based navigation can be carried out successfully.
Active Structural Acoustic Control of an Enclosure with Multi-Flexible Plates Using Different Point Force Actuators
Authors: Chen Da Lin , Chen Nan
Published: July 2014

This paper analytically demonstrates the use of some point forces actuators applied on different flexible plates to reduce the radiated sound in the cavity. A rectangular enclosure involving two opposite flexible plates is considered. We want to get the dominant factors that impact the coupling effects and the noise reduction in the cavity with the ASAC method, so we make some point forces located on different plates and to compare their different control effect. The formula was derivate to calculate the sound pressure in the enclosure when there some point forces applied on the flexible plates, and then analyzed and get the simulation of the sound pressure level (SPL) response in the local cavity sound field. The paper indicated that applying distributed cooperative control method can get the better reduction of noise.
Numerical Simulation of Low Reynolds Number Flows Based on CFD
Authors: Zhao Yan Ping , Ma Dong Li , Qiao Yu Hang
Published: July 2014

Low Reynolds number aerodynamics is important for various applications including high altitude unmanned vehicles, wind turbines and propellers. Few researches were concerned on this area. Low Reynolds number (60000,100000,300000,460000) flows around Eppler387 airfoil of different angles of attack (0°~12°) were simulated using Computational Fluid Dynamics (CFD). Transition shear-stress transport (SST) model which combined with the SST model and the model was demonstrated. Simulation results show good agreement with the experimental data. The model is able to predict the position of low Reynolds laminar separation bubbles and display the complex phenomenon of the flows, which can form the basis for solving boundary layer separation problem and designing of airfoil.
Investigation on Impact and Compression Properties of Pineapple Reinforced Polymer Composite
Authors: Manickavasagam V.M. , Ramnath B. Vijaya , Elanchezhian C. , Jenish J. , Jayavel S. , Muthukumar V.
Published: July 2014

The Natural fiber composites form a combination of plant derived fibers with plastic binders (Polymer matrices). The fibers form the fillers or reinforcements of the composite and the matrix is the continuous phase. In general, fibers are principal load carrying members while the surrounding matrix keeps them in the desired position, acts as a load transfer medium between them. So fibers with good strength and modulus and having good bonding with matrix should be used to a produce a good quality composite material [1-3]. The mechanical efficiency of a fiber composite depends on the adhesion between the matrix and the reinforcement [4-7]. This paper is to evaluate impact and compression properties of pineapple fiber based reinforced composite with epoxy resin as matrix.
Controlling of Faulty Vehicles Using GSM and GPS Technology
Authors: Elumalai G. , Bhaskar G.B. , Subash R.
Published: July 2014

In the developing countries, the identification of Faulty Vehicle’s by the enforcing authorities within a stipulated time is a challenging task. Hit and run accident vehicles, traffic-rule violators, theft vehicles, escaping an accused in a vehicle and nonpayment of tax vehicles etc., are called as faulty vehicles. In the existing Intelligent Transportation System (ITS), only the vehicles are being monitored, instead of catching the faulty vehicle. In this methodology, the vehicles are controlled from the control room itself within stipulated time duration by controlling the fuel mixture. The concept involves minimization or stoppage of fuel mixture to that particular vehicle (three-wheeler Auto and four-wheeler Maruthi 800), depending upon its location (GPS) and the traffic environment; by using the specially designed electronic control unit (ECU) and with the help of a network provider (GSM). The entire concept is explained in this paper with the help of block diagram and photographs. From this investigation it’s observed that the vehicle could be stopped and it can be caught by the enforcing authority for necessary action.
Comparative Analysis of AHP and ANP Model for Lean Production System Justification
Authors: Venkataraman K. , Vijaya Ramnath B. , Kannapan S. , Vinoth L. Bruce Selva , Velmurugan K. Vetri
Published: July 2014

Industrial organizations are in great pressure to reduce costs, improve quality, cut down on lead times and improve flexibility. Companies are thus turning their attention to implement lean. This has created urgency to apply new tools and techniques to reduce various wastes. This paper deals with comparative analysis of analytic hierarchy process (AHP) and analytic network process (ANP) to select the best manufacturing process among traditional, lean and computer integrated manufacturing system. Six criteria such as quality, flexibility, productivity, innovation, morale and competitive advantage are considered for evaluation and also considering their sub criteria, the best manufacturing system is selected.
Numerical Investigation on Heat Transfer of Al2O3/Water Nanofluid in a Shell and Tube Heat Exchanger
Authors: Raja M. , Vijayan R. , Vivekananthan R. , Vadivelu M.A.
Published: July 2014

In the present work, the effect of nanofluid in a shell and tube heat exchanger was studied numerically. The effects of Reynolds number, volume concentration of suspended nanoparticles on the heat transfer characteristics were investigated using CFD software. Finally, the effect of the nanofluid on Shell and tube heat exchanger performance was studied and compared to that of a conventional fluid (i.e., water).
Corrosion Behavior of Aluminium-Boron Carbide-Graphite Composites
Authors: Muthazhagan Chinnasamy , Gnanavelbabu A. , Rajkumar K. , Bhaskar G.B.
Published: July 2014

The corrosion behaviour of Al (6061)-B4C-Graphite was investigated. The Aluminium Metal Matrix Composites (AMMC) was fabricated through two step stir casting method. The composites were fabricated with various volume percentages of Boron Carbide (5, 10 &15%) and Graphite (5, 10& 15%). Corrosion studies of AMMC was investigated with 4%, 8%, 12% wt. % NaCl solution at room temperature. Also erosion-corrosion test were performed on the specimens in the NaCl solution with silica sand. Erosion-corrosion tests indicated that the rate of material loss mechanism is mechanical abrasion with enhanced corrosion. The material loss mechanism was significantly higher in the case of erosion-corrosion tests.
Dynamic Mechanical and Flexural Characteristics of Glass-Carbon Hybrid Composites
Authors: Poyyathappan K. , Bhaskar G.B. , Venkatesan N. , Pazhanivel Kaliyaperumal , Saravanan G , Arunachalam Sabapathy
Published: July 2014

This paper deals with the fabrication of test specimens of Glass fiber reinforced plastic (GFRP), Carbon fiber reinforced plastic (CFRP), Glass-Carbon fiber reinforced plastic (G-CFRP) and Carbon glass fiber reinforced plastic (C-GFRP) by using hand layup method. The low velocity point load setup was fabricated and fixed in the milling machine by using cam pointer arrangement. The specimens have been subjected to the low velocity point load for specific duration by exposure time such as 0,15,30,45 and 60 minutes. Then impact and DMA tests are also carried out for the above specimens. From the DMA test results it was found that the storage modulus and loss factor of GFRP specimen are high compared with others. Izod impact test result shows that impact strength of G-CFRP specimen is high. The flexural results reveals that among the four types of laminates CFRP gives higher order of flexural strength and modulus compared to the others
Dynamics Response of a Fractionally Damped Spherical Shell Impacted by a Body of Finite Dimensions
Authors: Chang T.K. , Rossikhin Yury , Shitikova Marina , Chao C.K.
Published: July 2014

In the present paper, the problem on normal low-velocity impact of a solid upon an isotropic spherical shell is studied without considering the changes in the geometrical dimensions of the contact domain. At the moment of impact, shock waves (surfaces of strong discontinuity) are generated in the target, which then propagate along the shell during the process of impact. Behind the wave fronts up to the boundary of the contact domain, the solution is constructed with the help of the theory of discontinuities and one-term ray expansions. The ray method is used outside the contact spot, but the Laplace transform method is applied within the contact region. It is assumed that the viscoelastic features of the shell are exhibited only in the contact domain, while the remaining part retains its elastic properties. In this case, the contact spot is assumed to be a plane disk with constant radius, and the viscoelastic features of the shell are described by the fractional derivative standard linear solid model. In the case under consideration, the governing differential equations are solved analytically by the Laplace transform technique. As a result, the exact solution of the contact force is determined as a function of time.
Numerical and Experimental Study of Guided Waves Propagation in Composite Beam with Damage
Authors: Barski Marek , Pająk Piotr
Published: July 2014

The theme of the present work is the analysis of the guided waves propagation along a flat, narrow composite plate (beam). The investigated structure is made of the multi - layered composite material (carbon fabric with epoxy resin). The applied material posses the quasi - isotropic mechanical properties. The guided waves are generated with the use of the piezoelectric activator. The finite element method is used in order to carried out the computer simulations. The plain state of the strain is assumed. The computations are performed for the intact and the damaged structure. In the case of the damaged structure the received signal (voltage) is significantly different in comparison with the intact structure. The qualitatively similar results are obtained from the experimental investigations.
Preparation of Iodine Doped Titanium Dioxide to Degrade Aqueous Bisphenol A
Authors: Kuo Chao Yin , Hsiao Hung Min , Lin Xiang Ren
Published: July 2014

Degradation of aqueous bisphenol A (BPA) using photocatalysts of granular iodine doped titanium dioxide (I-doped TiO2) under various irradiations (365 or 410 nm) was investigated. The degradation effect of aqueous BPA using I-doped TiO2 photocatalysts (iodine/titanium = 0.5 mole %) were 93 and 100 % under two irradiations of visible and UV light. This result indicated that I-doped TiO2 photocatalysts of were achieving energy-saving. In addition, the BPA removal rate satisfies pseudo-first-order kinetics and the degradation of BPA was evident after five cycles, indicating the stability and reusability.
Combination Rules and Maximum Response for Steel Buildings with PMRF Represented by Complex 3D MDOF Systems
Authors: Reyes-Salazar Alfredo , Bojorquez Eden , Valenzuela-Beltran Federico , Velazquez-Dimas Juan I.
Published: July 2014

The seismic responses of 3D steel buildings with perimeter moment resisting frames (PMRF), modeled as complex MDOF systems, are estimated and the accuracy of the commonly used rules to combine the individual effects of the seismic components, as well as the influence of the correlation of the components and the correlation of the individual effects on the accuracy of the rules, are studied. The responses are also estimated for several incidence angles of the horizontal components and the critical one is identified. It is observed that the rules underestimate the axial load but they reasonably overestimate the interstory and base shear. The effect of individual components may be highly correlated, not only for normal components, but also for totally uncorrelated components. Moreover, the rules are not always inaccurate in the estimation of the combined response for correlated components. On the other hand, totally uncorrelated components are not always related to an accurate estimation of the combined response. The critical response does not occur for principal components and the corresponding incidence angle of the seismic components varies from one earthquake to another. In the general case, the critical response can be estimated as 1.30 times that of the principal components.
The Research of Temperature Measuring System Based on Digital-Temperature Sensor
Authors: Xu Guo Jun , Zhang Jing , Yang Zhao Yang , Li Ti Yin
Published: July 2014

The principle and the realization method of the temperature measuring system which based on the temperature data acquisition chip-DS18B20 and the serial communication chip MAX1480B were introduced. Hardware principle diagram, software flow chart and main subprogram are also given. The dependability of the system was strengthened by using visualization technology and ionic smoke sensing technology.
Effect of Sintering Temperature Curve in Wick Manufactured for Loop Heat Pipe with Flat Evaporator
Authors: Wu Shen Chun , Lo Kuei Chi , Chen Jia Ruei , Chung Chen Yu , Lin Weie Jhih , Su Shen Jwu
Published: July 2014

This paper specifically addresses the effect of the sintering temperature curve in manufacturing nickel powder capillary structure (wick) for a loop heat pipe (LHP) with flat evaporator. The sintering temperature curve is composed of three regions: a region of increasing temperature, a region of constant temperature, and a region of decreasing temperature. The most important region is the increasing temperature region, as the rate of temperature increase directly affects the performance of the wick.When the slope of the region of increasing temperature is 0.8 (equivalent to 8OC/min), the structure of the manufactured wick is complete, with the best heat transfer performance result. Experimental resultsshowed that the optimal heat transfer performance is 160W, the minimal total thermal resistance is approximately 0.43OC/W, and the heat flux is 17W/cm2; the optimal wick manufactured has an effective pore radius of 5.2 μm, a permeability of 5.9×10-13m2, and a porosity of 64%.
Alpha Wave Attention EEG Analysis Based on the Multiscale Jensen-Shannon Divergence
Authors: Zhang Zheng Xia , Xu Si Qiu , Zhou Er Ning , Huang Xiao Lin , Wang Jun
Published: July 2014

The article adopted the multiscale Jensen - Shannon Divergence method for EEG complexity analysis. Then the study found that the method can distinguish between three different status (eyes closed, count, in a daze) acquisition of Alpha EEG time series, which shows three different states of Alpha EEG time series having significant differences. In each state of the three different states (eyes closed, count, in a daze), we aimed at comparing and analyzing the statistical complexity of EEG time series itself and the statistical complexity of EEG time series proxy data, finding that there are large amounts of nonlinear time series in the Alpha EEG signals. This method is also fully proved that the multiscale JSD algorithm can be used to analyze EEG signals. Attention statistical complexity can be used as a measure of brain function parameter, which can be applied to the auxiliary clinical brain function evaluation in the future.
Robust Edge Detection Based on Anisotropic Mathematical Morphology and Scale Multiplication in NSCT Domain
Authors: Dai Yi Mian , Wu Yi Quan
Published: July 2014

A novel edge detection method based on anisotropic mathematical morphology and scale multiplication in nonsubsampled contourlet transform (NSCT) domain is proposed to obtain a superior and robust performance under heavy noise. One preliminary result is obtained using anisotropic morphological gradient of the low-frequency component, yielding a single-pixel response with few pseudo edges. Due to the great ability of NSCT to localize distributed discontinuities such as edges, scale multiplication results of high-frequency components can get rid of a large amount of noise and produce well-localized edge candidates. The final result is a fusion of the detection results of low-frequency component and high-frequency components. Detailed experiments compared with other state-of-the-art methods demonstrate that the proposed method has a superior performance of edge detection and is quite robust even under heavy noise.
Cracking and Delamination Behavior of Gold Thin Strip Deposited on Polycarbonate Plate under Cyclic and Stepwisely-Increased Trapezoidal Tension
Authors: Hu Ya Fei , Tada Naoya , Shimizu Ichiro
Published: July 2014

Cracking and delamination behavior of small rounded-rectangular gold thin films called “strips” with a thickness less than one micrometer was observed under cyclic and stepwisely-increased trapezoidal tensions. Three strips in different directions were deposited on a polycarbonate plate specimen which was subjected to tensile loading. Straight slit and Vickers indentation were introduced as initial defects on each strip and cracking and delamination which were initiated around the defects were observed. In strips with slit, delamination was observed when introducing the slit. It was suggested that the delamination was caused by the residual stress accumulated during deposition. The growth of delamination was also observed during cyclic tension. In strips with indentation, complex cracking and delamination behavior was observed depending on the strip direction, which seemed to be attributed to the interactive effect of residual stress by deposition and external mechanical loading.
Stimulated Dissociation of Complex Ions and Structural Relaxation in Molten Non-Equilibrium MgCl2 and ZnCl2
Authors: Shabanov O.M. , Suleimanov S.I. , Gyulov В.Y. , Magomedova A.O.
Published: July 2014

On exposure of high-voltage microsecond pulsed fields the molten salts pass into a non-equilibrium state with disappearance of the characteristic peaks of the Raman spectra and increased electrical conductivity. In the course of the relaxation of nonequilibrium melts their Raman spectra and electrical conductivities are restored to the values and features specific to equilibrium systems in over about 10 minutes.
Second Time Development of Coal Quality Management System
Authors: Qian Bin , Zhang Hong Ying
Published: July 2014

Coal quality management information system based on the combination of C/S and B/S structure, with the continuous development of new technologies, for the two time development. This paper expounds the new scheme of coal quality management design of online processing system.
Optimal Model of Tutor Selection in Graduation Thesis Guidance for Undergraduate
Authors: Rao Cong Jun , Liu Qi Qin
Published: July 2014

The graduation thesis is the last part of undergraduate education, is an important way of cultivating the innovative thinking and comprehensive quality students. In order to improve the students’ graduation thesis quality, we must select optimal and suitable to guide different students. In this paper, we study the problem of selecting optimal tutor in the guidance of undergraduate graduation thesis, and present an optimal assignment model for tutor selection, and then use the Hungarian method to solve the assignment model. It provides effective way to the optimal allocation of tutor resources.
Research on the End-to-End Modularity Process for Manufacturing Enterprise
Authors: Wang Hai Jun , Zhao Ting Ting , Sun Hong Fu
Published: July 2014

This article studies the end-to-end modularity process from market segment analysis, concept design, engineering to the final product delivery stage. Accordingly, the Voice of Customer can be effectively mapped into the product properties and functioned by specific modules. The major purpose is to systematically integrate the application of modularity in critical stages of product lifecycle and to facilitate the awareness and realization of modularity for manufacturing enterprise, so that the comprehensive benefits of modularity such as short time-to-market, parts number reduction, and high production efficiency can be realized effectively.
Nonlinear Econometric Model of Electronic Products and its Application
Authors: Zhou Hong Yan
Published: July 2014

Digital product development is very rapid, this paper use engineering method to establish electronic product development model, and use Shift-share method to analysis decompose the economic capacity of the electronics industry, with the high level of industrial economic quantity Comparative analysis of the overall strength of the digital industry. Shift-share model with a comprehensive economic assessment, and put forward development proposals of corresponding electronic products.
Research of Refined Oil Emergency Reserve Monitoring System Construction Scheme
Authors: Chen Ning , Zhang Qi Min , Tang De Dong
Published: July 2014

Starting from the necessity of building refined oil emergency reserve monitoring system, in the aspects of system construction principle, the overall system architecture and the system construction has carried on the elaboration, proposed the construction scheme and reasonable reference.
An Algorithm for Representing Planar Curves in B-Splines
Authors: Lin Zi Zhi , Shu Si Hui
Published: July 2014

An algorithm for representing planar curves in B-splines is presented in this paper. The representing problem is different from the approximation to data points; planar curve provided more information than data points. To make full use of the information, we propose a three-step representing approach: 1.Sample data points along with their tangent vectors from the planar curve according to the given accuracy. 2. Fit the sampled points by Bezier segments using local interpolation; compose these segments to an interpolation curve. 3. Approximate the interpolation curve using the best least approximation to get the final B-spline curve. Tangent information is used in the second step to construct the interpolation curve. In the third step, the system is always positive because of using the best least square approximation, so we can get more freedoms to approximate the interpolation curve. Finally, some examples of this algorithm demonstrate its usefulness and quality.
The Effect of Empathic Technology on Artificial Intelligence
Authors: Liu Ji Guang , Li Qing
Published: July 2014

Recent advances in homogeneous archetypes and interposable methodologies are based entirely on the assumption that congestion control and spreadsheets are not in conflict with super pages. Even though it is never a natural objective, it fell in line with our expectations. In fact, few futurists would disagree with the synthesis of scatter/gather I/O. Maranatha, our new algorithm for pseudorandom technology, is the solution to all of these grand challenges.
A Self-Adaptive Harmony Search Algorithm for Unconstrained Optimization Problems
Authors: Zhang Ping , Sun Peng , Zhang Yi Ning , Li Guo Jun
Published: July 2014

Recently, a new meta-heuristic optimization algorithm–harmony search (HS) was developed, which imitates the behaviors of music improvisation. Although several variants and an increasing number of applications have appeared, one of its main difficulties is how to select suitable parameter values. In this paper, a self-adaptive harmony search algorithm (SaHS) proposed. In this algorithm, we design a new parameter setting strategy to directly tune the parameters in the search process, and balance the process of exploitation and exploration. Finally, we use SaHS to solve unconstrained optimization problems so as to profoundly study and analyze the performance of the SaHS. The results show that the SaHS has better convergence accuracy than the other three harmony search algorithms.
A Method of Building Chinese Sentiment Lexicon Based on Semantics
Authors: Yang Jia Neng , Yang Ai Min , Zhou Yong Mei
Published: July 2014

A method was proposed to build a Chinese sentiment lexicon based on semantics. Sentiment intensity of the word was automatically calculated by decomposing it into multiple English semantic units (Esu). A lexicon proofreading method was used to optimize the sentiment intensity of words. The proposed lexicon was applied to the task of sentiment analysis, in which the method of support vector machine was used to build the sentiment classifier. The experiment results shown that the built sentiment lexicon was more effective than the general polar sentiment lexicon.
Hopf Bifurcation Analysis of Digital Hydraulic Cylinder
Authors: Chen Jia , Xing Ji Feng , Lv Bang Jun
Published: July 2014

A dimensionless nonlinear state-space model was established considering the structural particularities of digital hydraulic cylinder, and dynamic bifurcation characteristics of the system were analyzed and validated based on MATCONT. The results show that, when the piston diameter, valve orifice area gradient, ball-screw pitch and the maximum desired speed are not designed appropriately, digital hydraulic cylinder is prone to Hopf bifurcation. Limit cycles that the stable and the unstable neutralize each other at subcritical Hopf bifurcation points, causing the system tracking outputs divergence from continuous oscillation to increasing oscillation. Losing synchronism of stepper motor is essentially a form of the instability caused by system supercritical Hopf bifurcation.
Evaluation Research on Agricultural Informatization Level in Tropical Areas of China Based on Entropy Method
Authors: Ye Lu , Li Yu Ping , Qin Xiao Li , Liu Yan Qun , Liang Wei Hong , Song Qi Dao
Published: July 2014

Based on construction and research situation of agricultural informatization in tropical areas of China, through building two-level evaluation index system of agricultural informatization level, agricultural informatization level in tropical areas of China was quantitatively calculated by entropy method, and main provinces in tropical areas of China were classified according to agricultural informatization level by hierarchical cluster analysis method. The results show that influence degree of agricultural informatization index from big to small in turn is information infrastructure, information resources, information talent, and information industry, and agricultural informatization of Eastern coastal in tropical areas of China develops more rapidly than Midwest. At last suggestions to promote agricultural informatization in tropical areas of China are put forward.
Simulation on Kinetic Characteristics of Moving Mooring Marine Current Turbine System
Authors: Tian Ying Yuan , Yu Jian , Sun Shan Chun , Li Xiao Tao
Published: July 2014

This paper aims to get the kinematic performance and control parameters of moving mooring marine current turbine system such as velocity, period of motion, speed increasing ratio, motion trail, tension of cable, steerage and timing of control, strength of the platform and etc. This article first gets the hydrodynamic parameters with CFD and then builds the equations of motion, and the system simulation test was carried out with Matlab and Adams. The result shows that this moving mooring marine current turbine system can move on a designed trajectory by steering in flow environment. The velocity of the platform is about six to eight times to the current speed. The simulation lays a foundation for the development of engineering prototype. There have been plenty of information proved the theoretical breakthrough but we still need to face great challenge in the project practice in the coming future.
Combined Filter Method Based on Terrain Factors
Authors: Yan Man , Liang Yong Quan
Published: July 2014

Interferogram noise filter is one of the key technologies which use synthetic aperture radar interferometry phase to extract digital elevation model. However, the interference fringes’ details are often reduced when complex interferogram is filtered, and this leads to inaccurate phase unwrapping result, for this combined filter method based on terrain factors is proposed. Filter method can be selected through weight factor associated with the terrain slope in the filter process, and Wiener filter method is implemented in flat terrain area, frequency estimated filter method is achieved in steep terrain area. Then the new filter method is applied to deal with data where the region of Quebec, Canada. This proves that the new filter algorithm proposed in this paper can effectively suppress noise and better maintain stripe details.
Lane Mark Identifying and Tracking Base on Edge Enhancement
Authors: Xing Yan Yun , Yu Bo , Yang Fang Qun
Published: July 2014

In order to improve the accuracy of lane mark line identifying and tracking, this paper uses the LOG operator for edge enhancement, so the useful information is changed into straight lines and the useful feature is obvious. And the paper uses the algorithm of 2-D gray histogram to segment the image. Then it uses Hough transformation to identify the lane mark’s two edges and account its intercept and slope, then draws the midline as the final identifying result. Finally in order to reduce the count time, the paper uses the identifying results of the last frame image limit the current frame image recognition areas in tracking lane mark. The experiments results show that the lane mark can be tracking dependably and the algorithms are real-time, moreover, when the algorithm is failure, the system can also recover in time, and locks the tracking target accurately again.