bluuebunny/crossref_metadata_2025 huggingface dataset:
New Trend of Wi-Fi DSC
Authors: Yeh Wei Ming
Published: July 2013

Since 2011, many Japanese DSC manufactures were anxious to explore some new possible solutions, in order to fill up the niche of technical advanced models or nostalgia models for special users, such as: Canon PowerShot SX50 (50x optical zoom), Panasonic LX7 (F1.4 Aperture), Fujifilm Xpro-1(nostalgia),and Canon IXUS 510 HS(Wi-Fi), NikonD3200(Wi-Fi),SamsungNX1000(Wi-Fi), Nikon S800C(Android). In fact, in 3C market, both hot-selling Smartphone (Multi-function Cell Phone) industries and DSC manufactures may have mutual interested which can work together to produce better and suitable photo components ever before. It is a new trend for Smartphones have better photo quality, and DSCs have Wireless Sharing Technique (Sharing Photos by Internet). Basically, this Wireless Sharing Technique for DSCs, only existing on relatively inexpensive, non-professional, DSLR-like, and EVIL cameras before late 2012, but are highly adapted since early 2013.This is the main target we are looking for, and we check every possible point what could be the real advantages and disadvantages for those bright new DSCs with Wi-Fi system. In our experiment, we collect more than 300 cases from the telephone survey during September 2012 to January 2013. Total of 210 cases fulfilled with the conditions. To probe mainly into the relationship between Wi-Fi DSC confidence level and 3 potential groups of people: IT administrators (IT), Multimedia Specialist (MS) , and college student (CS). We are probe into this highly competitively market with brilliant creative design, and hope to offer an objective suggestion for both industry and education administers. .
Design of Functional Safety Temperature Transmitter and Reliability Analysis
Authors: Xu Ai Dong , Zhou Ya , Bai Zhan Yuan , Wang Kai , Liu Liang Liang
Published: July 2013

This paper presents the design of the functional safety temperature transmitter and reliability analysis to develop the certified safety related product with independent intellectual property rights. According to the functional safety standard IEC61508 and the 1-out-of-1 and Diagnosis (1oo1D) architecture of the temperature transmitter, self-diagnostic methods are proposed. At the same time a Markov model is established to assess the reliability of the transmitter quantitatively. Analysis results show that safety integrity level (SIL) is SIL2 and safety temperature transmitter complies with functional safety requirements and safety integrity level requirements.
An Efficient DOA Estimation Algorithm for Spatial-Temporal Correlated Sources
Authors: Huang Xiang Yang , Ai Ming Shun , Yu Peng Peng
Published: July 2013

This paper presents a signal direction-of-arrival (DOA) estimation approach that possesses excellent performance in spatial and temporal correlated signals environments. Firstly, an algebraic solution of the null subspace is derived based on the Vandermonde structured steering vectors of uniform linear array when all the sources possess identical nonzero mean value, and then, the DOA estimation is obtained with a polynomial rooting method. The novel algorithm performs much better than the conventional algorithms in the situation that the sources are closely spaced or correlated, and simulations have verified the validity of the algorithm.
Free Vibration Analysis of the Strengthened Beams by Composite Coats
Authors: Sabiha Tekili , Youcef Khadri , Bachir Merzoug
Published: July 2013

The analysis of free vibration of simply-supported lamineted composite coated beams is investigated. With a core made from an isotropic material (steel) and faces made from composite material, (glass/epoxy and carbon/epoxy), two sandwich beam models are used in the study. For this purpose, a computer code is developed using MATLAB to perform the analysis of free-vibration of strengthened beams by composite coats. The effects of the variation of different parameters such as the span/depth ratio, fiber orientation angle of the coat, and thickness ratio on natural frequencies and of the beam are examined.
A Study on the Rod Type Ultrasonic Motor
Authors: Jou Jwo Ming
Published: July 2013

This study is to explore a rod type ultrasonic motor, it can solve the traditional ultrasonic motor with a high speed, but only low torque (or low loading ability) the shortcomings. Or want to improve the traditional ultrasonic motor with high torque (or high loading ability), but speed is too low the drawback. In other words, this study is expected to perform the ultrasonic motor, hope that we can have both higher speed and higher torque of the effect (or higher loading ability), and it can be applied to drive the optical lens (or electro-mechanical systems ) or applied to toggle the slider (or linear rails ). Based on the experimental results, we found that maximum rotational speed is 200rpm under conditions of 180Vp-p, 33.7kHz and 53gw preload. And the maximum loading ability and torque is respectively 4.13kgw and 0.273Nm under conditions of 180Vp-p, 33.7kHz and 15rpm rotational speed. Under similar size and driving conditions, its rotational speed is 3.8 times that of the conventional ultrasonic motor and the loading ability is 7.0 times the conventional ultrasonic motor.
Transformation of Three-Axis Tool Path to Inclined Plane for Five-Axis Machining
Authors: She Chen Hua , Zheng Zhi Hao
Published: July 2013

Manufacturing industries such as the aerospace industry and the molding industry need to process products of complex and high-precision curved surface. Multi-axis machine tool with two rotational axes plays an indispensable role in processing such products. However, in a fiercely competitive market, each manufacturer is devoted to reduce processing time and costs. Therefore, how to efficiently create multi-axis numerical control program has become an important issue. Typical multi-axis machining parts often have specific machining features such as hole, groove or even engraved text on the inclined plane. Although the tool path can be generated by the advanced multi-axis CAD/CAM system, the prices of such systems are very high. This study proposed a methodology for defining the inclined working plane of the multi-axis machining tool. According to the defined working coordinate system proposed in this study, the tool path files of the traditional three-axis machine tool can be transformed to the five-axis NC program through post-processing calculation. As a result, the required NC program can be obtained for the same machining feature on any inclined plane in shorter time. Finally, this study tested and confirmed the accuracy of the numerical control program by solid cutting simulation software.
Advanced Design for The Bolted Clip-Angle Connection
Authors: Jong Wan Hu , Jae Wan Kim
Published: July 2013

The main focus of this study is to investigate the clip-angle connections are described the section based on ideal limit states. The connection components are designed in accordance with the 2001 AISC-LRFD Specifications and the 2005 AISC Seismic Provisions. In the suggested clip-angle connection, the structural beam can be connected to the column using six high-strength bolts. The slippage on the shear faying surface contributes to increasing energy dissipated capacity in the connection behavior. The design of the clip-angle connection should include these mechanical characteristics. Therefore, this study presents new design methodology that can be applied to bolted clip-angle connections. Besides, step-by-step procedures for design will be treated herein.
Flow Field Analysis of Self-Energizing Oil Screen with Dynamic Filtration Rollers Based on Gear Train
Authors: Xin Shao Jie , Li Qing Ling
Published: July 2013

A new structure of oil screen named self-energizing oil screen with dynamic filtration rollers based on gear train was put forward. It uses the pump inlet fluid kinetic energy which is produced by pump working stroke to drive the impeller to rotate. The driving moment is transmitted to the rollers by means of gear train. When the rollers rotate, sands are prevented and oil is filtered. Computational model of the screen was established by GAMBIT based on the computational fluid dynamics. The velocity filed and pressure field distributions were attained and the driving moment of the screen was computed by FLUENT solver. The results validate that the new designed self-energying oil screens structure is reasonable, it can filter the oil effectively when the pump works.
Development of the Soft Pipe Bending Machine with Thickness Guarantee
Authors: Jung Dong Won , Jeong Ji Hyun , Cho Jong Rae
Published: July 2013

A Soft bending pipe is widely used for freezing equipment and shipbuilding. This pipe has some problems such that outside wrinkle, crack, phenomenon of thinning wall. However, the bending machine that can completely solve the problems is not yet. In this study, we have manufactured the self-made mandrel to guarantee both roundness and thickness of the pipe in the bending process for a soft pipe such as a copper pipe. The mandrel consisted of a ball, stick and connection pin. Also, we have manufactured the bending machine that can decrease friction between the pipe and the bending die. The experiment was tried to verify the performance of the mandrel and the pusher to the thickness guarantee of the pipe.
Numerical Analysis of the Urban Subway Tunnel Construction on Shallow Foundations and Preventive Measures
Authors: Sheng Chang , Zhao Xiao Ping , Zhou Qun Mei
Published: July 2013

The subway line will cross near the church St. Johann in the city. The foundation influence caused by tunnel construction from adjacent buildings will be simulated by software FLAC3D. And the feasible proposal of the construction will be resulted from the data which are collected from the field measurement and simulation. It plays an important role for coefficient of horizontal pressure K0 in simulating the geotechnical engineering. Comparing the data from the field measurement with simulation, the coefficient of horizontal pressure will be corrected. And the results of the simulation will be much closer to the real profiles.
Numerical Prediction of Radial Force in Hydraulic Turbine Based on Fluent
Authors: Shi Feng Xia , Yang Jun Hu , Wang Xiao Hui
Published: July 2013

Two centrifugal pumps in reversal were selected as hydraulic turbines, one of which was equipped with a guide vane. Flow performance was simulated by Fluent. Radial forces of hydraulic turbine in different conditions were predicted. It was shown: when pumps in reversal were used as turbines, The radial forces were produced by the uneven dispersion of pressure in runner inlet. The radial forces increased with the increasing of discharge. Equipped with a guide vane, The inlet pressure in hydraulic turbine runner distributed more uniform than before, and the radial forces were reduced. No guide vane, the vector direction of radial force distributed between Volute Tongue and section VIII, while with a guide vane, the vector direction of radial force distributed between section IV and section VI. By adding guide vane for hydraulic turbine,the uniformity of pressure distribution in runner inlet can be improved and the radial force be decreased.
Numerical Study of Effect of the Number of Propeller Blades on Cavitating Flow
Authors: Zhu Zhi Feng
Published: July 2013

The instability mechanism of propeller wake was investigated numerically on three propellers with different the numbers of blades. With the hybrid grid strategy and the sliding mesh, the Unsteady Navier-Stokes (N-S) and the Bubble Dynamics equations were solved to predict the axial velocity around the propellers and the vapor volume fraction in the blades surface. With the increasing of the numbers of propeller blades, the distance of the interaction decreases, and then the instability phenomena of the propellers wake are hastened.
Reduction of o-Hydromandelic Acid for Preparation of o-Hydrophenylacetic Acid
Authors: Zhang Yue , Shi Xian Xian , Chen Ya , Shang Zhen Hua , Wang Li Qiang
Published: July 2013

In this work, reduction of o-hydromandelic acid to o-hydrophenylacetic acid was investigated. Inorganic and metal catalysts were used in the process of reduction to look for a suitable way for transferring o-hydromandelic acid to o-hydrophenylacetic acid. Of all the catalysts, Raney-Ni has the favorable catalytic activity and the orthogonal test was investigated to determine the optimal condition. The yield of o-hydrophenylacetic acid can up to 90%.
Preparation and Characterization of Silica Aerogel Immobilized with Cyanex 301 for Extraction of Zn(II)
Authors: Begum Noorzahan , Bari Md Fazlul , Abdullah Salmie Suhana Binti Che , Khairel R.A. , Ahmed N.
Published: July 2013

A new solid phase extractant silica aerogel immobilized with Cyanex 301 {bis (2,4,4-trimethylpentyl) dithiophosphinic acid} (SAWC) was prepared via a sol-gel method and investigated for the extraction of Zn (II) from aqueous solution by a batch extraction technique. It is found that SAWC can extract about 100% zinc at equilibrium pH 1.7. Prepared SAWC was characterized by FT-IR, BET, EDX and SEM which proved the presence of Cyanex 301 into silica aerogel. Moreover, the material is also easily regenerated and reused in the subsequent removal of Zn (II) in five cycles. Therefore, it could be concluded that it may perform as a solid phase extractant in the extraction of metal ions from the aqueous solution.
Effect of Junction Shape on Diode Properties
Authors: Chalamnongnoot Akkalak , Itthikusumarn Wiwat , Titiroongruang Wisut
Published: July 2013

Reverse leakage current (IR) is a problem that degrade electrical characteristics and power diode effective. This paper presents the parameter extraction and analysis reverse leakage current of N-type silicon power-diodes with different geometries. All power diode were tested in 3perimeter and effective areas as follows: 0.58 cm, 0.98 cm,1.72 cm and 0.022 cm2, 0.062 cm2 0.192 cm2, respectively. We found the reverse leakage current increase with the larger junction perimeterto effective arearatio (P/A) that meaning the inverse leakage current increase with perimeter of the junction.
Physical Properties of KY1-xErxF4 Investigated by Photoluminescence
Authors: Park Ta Ryeong
Published: July 2013

Trivalent erbium ions, Er3+, in KY1-xErxF4 crystal produce up-converted photoluminescence (PL) band around 406 nm when excited by 488 or 532 nm photons. By using time-resolved spectroscopy, it was found that the up-conversion arises from the energy transfer processes between the excited Er3+ ions. Thermal behavior reveals that the 406 nm up-conversion is a phonon-assisted process. There is also a secondary up-conversion by level-crossing where a PL band around 520 nm is produced by the 532 nm excitation. High pressure causes the crystal to undergo a structural phase transition, as monitored by the PL it produces.
An Improvement of the Breakdown Voltage Characteristics of NPT-TIGBT by Using a P-Buried Layer
Authors: Manosukritkul Phasapon , Kerdpardist Amonrat , Saenlamool Montree , Chaowicharat Ekalak , Poyai Amporn , Titiroongruang Wisut
Published: July 2013

In this paper, we introduced a P-buried (Pb) layer under trench gate which relieved the electric field crowding in the Non Punch Through Trench gate Insulated Gate Bipolar Transistor (NPT-TIGBT) structure. The Pblayer, with carrier concentration of 5x1016cm-3, was created underneath the trench gate within the n-drift layer. In this way, the concentration of electric field at the trench bottom corner decreased. As a result, the breakdown voltage characteristics of NPT-TIGBT improved. The structures were proposed and verified by T-CAD Sentuarus simulation. From the simulation results, the breakdown voltage increased by approximately 30% compared with conventional NPT-TIGBT.
Optimization of Mechanical Properties of Plasma Spraying Ceramic Coatings Using Artificial Intelligent Approaches
Authors: Jean Ming Der
Published: July 2013

This study reports on the use of Fuzzy-Grey systems, with a Taguchi designed experiment to enhance the quality characteristics of yttria stabilized zirconia (ZrO2/8%Y2O3) coatings, made by a plasma-sprayed process. Eight control factors were designed in an L18 orthogonal array experiment, and the effects of the control parameters on the surface properties were critically evaluated in the experiments. Multi-response characteristic terms-surface roughness, hardness and wear depth values in the sprayed ZrO2/8%Y2O3 coatings through the optimization were studied comparatively. A Fuzzy-Grey approach, based on the Taguchi orthogonal experiments for optimizing multi-response performance in the coatings, was reported. In addition, the influence of control factors on the Fuzzy-Grey systems for spraying processes was investigated by analysis of variance. In addition, a confirmation experiment was conducted. Experimental results have shown that the hardness increased by 18.67%, while the surface roughness decreased by 32.01%and the wear rate improved by 30.52%. It is clear that the multi-response quality characteristics for plasma sprayed coatings are greatly improved through Taguchi-Fuzzy-Grey analysis, and that these findings achieved the desired values in regard to the mechanical properties.
Binding as a Rate-Limiting Step for Substrate Recognition of ADAM17
Authors: Sen Liu , Ma Xiao Hong
Published: July 2013

ADAM17 is an important membrane-bound proteinase, and it can release a lot of proteins from their membrane-bound forms, such as cytokines, cytokine receptors and adhesion proteins. ADAM17 has long been an interesting therapeutic target in a lot of diseases; however, the development of its inhibitors has been hurdled by our very limited knowledge on its substrate specificity and selectivity. To understand the substrate specificity of ADAM17, here in this paper, a rational complex model is computationally built for the catalytic domain of ADAM17 and its recognizing sequence from the TNF-alpha precursor (proTNF-alpha). With protein-peptide docking analysis, we found that the substrate binding step is indeed important for ADAM17 recognition and processing. The result in this paper could be useful for the understanding of the substrate specificity and selectivity, and the design of novel ADAM17 inhibitors in the future.
The Effect of Cast-In-Place Floor Slab on Strong Column-Weak Beam Mechanism of RC Frame Structures
Authors: Jin Huan
Published: July 2013

For understanding the influence of cast-in-place floor slab on the failure mechanism of "Strong column-weak beam", nonlinear finite element simulation of a 1/2-scale one-story, two-bay RC frame specimen has been carried on using DIANA software. The analysis model was designed and constructed according to the design drawings of Xuankou middle school building. Through the comparison and analysis, it shows that the 3 D solid finite element model established is feasible to analyze the mechanical performance of RC frame, and the contribution of cast-in-place floor slab on the negative flexural capacity of frame beam, which is disadvantageous to realize the failure mechanism of "Strong column-weak beam", should not be neglected.
Fiber Concrete Research on Different Fiber Volume Dosage
Authors: Wen Sheng Guo
Published: July 2013

This paper proposed experimental research on different proportion of fiber mortar, the main parameters are: cement matrix, Fiber volume dosage. Results show that the compression, rupture strength achieve the best as the fiber volume dosage at 0.7%. Fiber in this test parameter range play important role.
Analysis of Deformation in Widening Project of Expressway by Finite Element Method
Authors: Ai Teng
Published: July 2013

This paper analyzes the deformation rule of the new and old roadbed when the new road splicing the old road directly by elastic-plastic plane strain finite element method (FEM).It also analyzes the influence factors of the new and old road foundation settlement by calculating, including the width and height of the embankment, the thickness and deformation module of the groundwork, and widen way.
Experimental Testing of the Composite Energy Absorber
Authors: Sháněl Vít , Kulíšek Viktor , Růžička Milan
Published: July 2013

This paper deals with the development of a deformation element designed to be used in transportation industry. The aim is to develop a design of thermoplastic composite that begins to warp under a considerable impact loading and thus ensures a high energy absorption. This is accomplished using several modes of deformation. Fiber fracture and delamination of the composite layers can be counted among the most important ones. The shape of the deformation element was designed to utilize the advantages of its thermoplastic matrix when creating the shape of the composite plate as well as when joining the plates together (welding, bonding).
Numerical Simulation of Chemical Non-Equilibrium Flow in Hydrocarbon Fuel Scramjet Nozzle
Authors: Zhang Bin , Yu Bin , Liu Hong , Chen Fang
Published: July 2013

Based on 8-specice, 12-step finite-rate chemical reaction models, the chemical non-equilibrium flows of hydrocarbon fuel scramjet single expansion ramp nozzle (SERN) were numerical simulated. The chemical dynamic characteristics of flow in SERN were analyzed in detail. The performances of SERN were compared at various inlet static temperatures. The numerical results show that the chemical non-equilibrium effect had great influence on the performance of the nozzle at the relatively high inlet static temperature. However, influence induced by chemical non-equilibrium effect can be neglected when nozzle inlet static temperature is less than 2500K.
Analysis of Fault Diagnosis Methods of Machine Tool Hydraulic System
Authors: Pan Chun Hui , Wang Huan Dong
Published: July 2013

It is difficult to directly determine the main cause of failure in hydraulic system on themachine tools. The transmission principle and structural characteristics of the hydraulic system mustbe fully understood before any troubleshooting start. Then the root cause of the failure can be foundand excluded through judgment and analysis on fault phenomena. This paper analyzes thecharacteristics of the hydraulic system failure, summarizes the frequently-employed methodsregarding hydraulic system failure diagnosis. The authors hope to provide some help to machinehydraulic system failure diagnosis at the workplace.
Improved Calibration Method of Amplitude and Phase Errors Based on Diagonal Loading
Authors: Anjum M. Rizwan , Yin Pi Lei , Shi Peng Fei , Ismail F.
Published: July 2013

The amplitude and phase errors deteriorate the low-sidelobe level characteristic of phased array antenna, which degrades radar performance seriously. Therefore an improved calibration method of amplitude and phase errors based on diagonal loading is proposed to address the problem of amplitude and phase errors in this paper. Initially, the mathematical models of amplitude and phase errors are developed and the impact of amplitude and phase errors is analyzed. It is found that although the interference can be suppressed when there is amplitude and phase errors in the array, the low-sidelobe level characteristic of adaptive antenna is badly deteriorated. An improved calibration method of amplitude and phase errors based on diagonal loading is proposed. Compared with traditional calibration method, proposed method can reduce the sidelobe level efficiently. At last simulations were carried out to verify the effectiveness of proposed method.
Flexural Response Analysis of Partly Overlapped Piezo Sensor and Actuator on an Infinite Beam
Authors: Lee Young Sup
Published: July 2013

This paper investigates theoretical flexural response of a partly overlapped piezoceramic PZT sensor and actuator pair which is attached on an infinite beam. In this study, three different overlapped lengths between the piezo sensor and actuator are considered and the response of each sensor and actuator is modeled theoretically and analyzed in the aspect of wave propagation in the beam. The out-of-plane flexural waves due to the action of the actuator are modeled in the beam and the sensor is modeled to detect the flexural waves. Because of the characteristics of the partly overlapped sensor and actuator pair, the sensor-actuator responses show specific properties after numerical analysis. In terms of frequency response function, the results of the three different partly overlapped cases display the magnitude and phase responses provide a better understanding in designing a vibration control system.
Emotion Intelligence Computation Based on Matrix Description of State Machine
Authors: Shi Xue Fei , Feng Tao
Published: July 2013

Nowadays the functional role of emotions has been recently fully recognized as essential for intelligent systems. In this paper an emotion and behavior model are presented based on the similarity between primary emotion and state machine. A two-layer emotional state generator based on the brain science is introduced firstly. The matrix description of state machine is applied to construct the bottom level of emotion generator. This method could improve the reactive performance of intelligent system. A neural cell model named Lapicque is used to describe the transition of emotion state. Experimental results is presented in the end demonstrate the response advantage of our model.
A Multi-Language Speech Recognition Method Based on Confidence Bayesian Decision-Making
Authors: Jie Yang
Published: July 2013

The language mixing in multi-language speech recognition is one of the hot issues of concern. After analyzing recognition problem, a method to distinguish language with re-class method according to confidence on multi-language recognition result based on Bayesian decision-making rules with minimum error rate and minimum risk was brought out. It can not only avoid cumbersome language recognition in traditional method but also achieve target of decreasing mixing cognition rate. Experiment on Chinese-English mixing recognition shows that the method can distinguish different language and improve speech recognition rate, which has practicality.
The Application of Matrix Partial Order in the Comparison of Linear Model
Authors: Liu Shu Yuan
Published: July 2013

In order to make the matrix theory of matrix partial order in multivariate analysis and linear model parameter estimation plays an important application, this paper mainly discusses matrix partial order and its application in linear model to compare. Firstly introduces estimation and model comparison the basis knowledge, then use the matrix partial order theory comparison of generalized ridge estimation and LS estimation. Under the mean square error criterion, discusses the ridge estimation superior to LS estimation problem, On this basis, using Lowner partial order generalized ridge estimators are discussed relative to the LS estimate of good properties, popularize the previous conclusions.
A New Error-Diffusion Dithering Kernel for Image Halftoning
Authors: Jeon Gwang Gil
Published: July 2013

Signal image halftoning approach quantizes each pixel to one bit binary pixel. During the process of error diffusion, the quantization difference at each pixel is fed back to the input to diffuse the quantization difference among the adjacent color or gray-level pixels. This paper proposes a new kernel for error diffusion to enhance halftoning quality by minimizing average error after the process. Simulation results section confirms that the obtained color and green channel result images are satisfactory.
An Improved AIMD Algorithm for Wireless Cellular Video Transmission
Authors: Dai Chun Ni , Zhang Chong Yang , Wang Yuan Bin
Published: July 2013

This paper proposes a novel additive increase and multiplicative decrease (AIMD) algorithm for wireless video transmission over cellular networks. The goal of this new algorithm is to improve the bandwidth utilization efficiency without degrading its fairness potential. To address this issue, it increases the regulating segment during the fast-recovery stage, and uses a time-window-based adjusting scheme to filter the short-time-slot bandwidth fluctuation. Simulation results show that the proposed algorithm has faster bandwidth recover speed and less transmission rate fluctuation than that of the traditional AIMD algorithm.
Research on the Design of Smart Home Control System
Authors: Wang Xiao Bin , Wang Shou Jin , Yu Wei Shuang , Wang Qing Jun
Published: July 2013

Smart Home is an emerging interdisciplinary subject, which has already enjoyed flourish development all over the world and has become the mainstream of the development of the construction industry in the 21st century. In this paper, through the design of smart home which mainly uses embedded microcontroller design, this vast world of smart home is introduced to everyone, so that they can pay more attention to smart home. Design the embedded system which takes ARM as the core through the model of host - subsystem, through RS485 bus management and control of the control terminal, and process, automatic control and regulation is conducted. The three subsystems of home security, appliance control, family MRs are also used to design home by use of embedded system. The design of smart home control system can make family life more comfortable and convenient, more economic and security, and take a firm step in order to meet the demands of people of safety, comfort, convenience as well as confirm to the green environmental protection.
Kanembedded Control of Sub Cyclic Ac Chopperwith High Speed and Low Switching Losses
Authors: Kanniga E. , Sundararajan M.
Published: July 2013

The circuit has combination of high speed and low switching losses. The need for detecting the current zero crossing is eliminated by applying a specific switch activation schedule for each combination of the current and Voltage signs of the main taps. The new method reduces the electrical stress in the Switches and the electromagnetic emission [ref.
Investigation of Nanostructures Materials from Rice Husk Ash by Thermal Process
Authors: Jantasom Khanidtha , Somrud Potjanee , Noothongkeaw Suttinart , An Ki Seok , Tipparach Udom , Pukird Supakorn
Published: July 2013

Nanostructures materials were prepared from rice husk ash by carbon charcoal assisted. The rice husk ash mixed with coconut shell charcoal and Cu-Sn powder as the source materials. The mixtures materials were heated at 1100 °C under atmosphere of nitrogen with flow rate of 1 L/min. After the temperature was cool down, the prepared products were characterized by the stereo microscope, scanning electron microscope (SEM) and X-ray diffraction (XRD). The SEM images showed nanostructures materials such as nanoparticles, nanorods and nanowires. The XRD patterns indentified that the consisted of nanostructures materials were SiO2-CuO phase.
Design of Intelligent System for Soccer Goal Detection Based on Opto-Electronic Technology
Authors: Zhang Qing Lai , Tian Xin Ming , Meng Zhan Ling
Published: July 2013

With the continuous development of football games, more and more football matches are hold in the world. From the World Cup to the big league, the erroneous decisions of the goals by referee always became the focus of the games. Federation International de Football Association (FIFA) is discussing now to introduce high technology to the football games to assist the judgment of the referee. In this paper, an advanced detection technology for soccer goal is proposed. This goal detection technology is based on the optical principle, high speed camera, as long as infrared detection devices. By detecting the change of electronic signal in the moment of goal, which can cut off the laser beam, the goal can be detected. In addition, the detection results and in-situ video are transmitted in real time to the arbitrators, which can reduce the goal disputes and make the game of football more fair.
Research Based on the Position Control Wizard of S7-200
Authors: Wang Li Xia , Feng Zhan Rong , Liu Ze Min
Published: July 2013

In order to apply the PTO pulse function of S7-200 PLC in a more systematic, convenient and effective way, this thesis adopts the position control wizard to generate envelop and control subroutine. The thesis also makes detailed descriptions and case discussions on the three subroutines of PTO0_CTRL, PTO0_RUN, PTO0_LDPOS, and the results show that using the position control wizard can not only generate envelop and control subroutine conveniently but also bring convenience to the application of the subroutine. Especially, the parameters of the three subroutines interact both independently and mutually. If we make a deeper research on the parameters, we can master their relations further more and apply them more proficiently.
Estimation of Reduced Standby Power in Household Considering Occupancy Information
Authors: Lee Min Goo , Park Yong Kuk , Jung Kyung Kwon
Published: July 2013

In this paper, we measure the standby power of home appliances and then we propose an easy way to reduce standby power of home appliances. For this purpose, this paper presents the home energy management system with a wireless sensor network in real home. Proposed system is composed of wireless plug, occupancy sensor, environmental sensor, home energy control wall pad and EMS server. We evaluated home energy management system in the real house testbed and analyzed energy consumption of home appliances.
We confirm that if we tried to reduce the standby power of electrical appliances based on the occupancy of the residents, we could save the power of the real house testbed about 241.7Wh per day, 1.69kWh per week, 7.49kWh per month and 88.2kWh per year.
Extensive Particle Swarm Ant Colony Algorithm for the Optical Fiber Phase Sensor with ZnO Coating
Authors: Zhang Xiao Ting , Zhou Li , Zhou Ya
Published: July 2013

The modulation mechanism of the optical fiber phase sensor with ZnO coating is analyzed intensively in this paper. An extensive particle swarm ant colony algorithm and ant colony algorithm are used to optimize the power coupling efficiency of the sensor. The influences of the optimized device parameters on the power coupling efficiency are also investigated.
Utilizing the Binary Field to Optimize the Performance of the Relational Database
Authors: Zhou Yi Xin , Wang Xi
Published: July 2013

In practical relational database, there are many tables that the values of their most fields have only two kinds and the values of the left fields are all discrete. For this kind of table, the paper presented a new logical storage structure utilizing binary field to compress the data volume and by making binary operations and SQL statements combined to realize the new database operations to enhance their executing efficiency. Experimental results showed that the new storage structure indeed greatly reduced the physical storage space and optimized the performance of the relational database.
An Algorithm of XML Algebraic System Based on the Distributed Open Computing Model
Authors: Li Ying , Sun Hong Feng
Published: July 2013

The key to achieve the XML query language lies in creating valid XML algebra system. Most of the existing solutions for XML algebra system are an extension of the nested relational algebra and the major difficulty is that the computational complexity of the nested model - instance binding is too great to be effectively solved. This paper proposes an algorithm of XML algebraic system based on the distributed open computing model and then demonstrates its effectiveness in detail. By decomposing the binding process of query mode in the instance graph, this paper utilizes the message delivery to assemble the resulting tree and improve the overall computing performance. Therefore, it can provide effective support for the massive information integration and service system with the distributed open computing environment.
Influence of Microporosity Morphology on Hot Compression Behavior of 6063 Alloy
Authors: Li Xie Hua , Cao Yi Heng , He Li Zi , Guo Ya Ping , Cui Jian Zhong
Published: July 2013

The influences of microporosity morphology on the flow stress behavior of 6063 alloy were investigated by isothermal compression test at 300°C-500°C and strain rate of 0.01-10s-1. After 60% compression, the area fraction of microporosity of sample having lage microporosity decreases obviously. The flow stress increases with increasing strain rate and decreasing temperature. The flow stress stress behavior of 6063 alloy during hot compression can be described by a Zener-Hollomon parameter including Arrhenius item. The increasing of area fraction of microporosity decreases the deformation activiation energy Q.
TCLOUD: Inter - Node Communication Model Based on Social Trust Framework for Cloud Computing
Authors: Ullah Sultan , Zheng Xue Feng , Zhou Feng
Published: July 2013

Cloud computing is presently being paid much attention as a way of distribution and sharing out of information. Similarly, as latest experience illustrates, the unspecified, open environment of this technology presents more or less an idealistic environment for the augmented unauthentic communication. The issue of having trust in cloud computing is a main apprehension for the majority of computing industry. Presently, the important contents for research in cloud computing is to evaluate the trust and behavior based computing. The uncertainty of cloud nodes, the services and resources cloud provide may have a negative effect on the execution of cloud tasks. This makes it very difficult for the cloud node to interact effectively and increase the chances of transaction failures. The authors proposed a model, and design an algorithm of trust which is based on the social model of reputation and trust. The algorithm calculates the trust degree of a node before any communication take place between the nodes. This reduces the chances of failure and increase communication efficiency.
A Novel Three-Dimensional Recommendation Approach for C2C E-Commerce Platform
Authors: Ai Dan Xiang , Zuo Hui , Yang Jun
Published: July 2013

The recommendation problem in C2C e-commerce platform is three-dimensional, for it involves three entities: buyers, products and sellers. Traditional two-dimensional recommendation methods used in B2C websites are not applicable for the new task of recommending seller and product combinations to the target buyer in C2C websites. We formally defined the recommendation problem in C2C, and proposed a three-dimensional approach by compounding and extending collaborative filtering and content-based filtering method. In the proposed approach, buyer similarity and seller similarity are measured to model the buyers personalized preferences, and a rating inference mechanism is employed to reduce the data sparsity caused by multi-dimensions. The model and the key calculations of the approach are discussed. And an example of calculation is demonstrated.
Research on the Web Service Selection with Constraints Based on QoS
Authors: Qin Sheng Jun , Li Wei
Published: July 2013

The SOA model brings new benefits to software design and architecture by enabling re-use and sharing of services. Due to the uncertain of web service, it is important to make sure that the selected service is always reliable and available. In this work, we propose an allocation scheme that minimizes the response time and cost of the solution subject to reliability and availability constraints in terms of expected value. The algorithm proposed in this paper aims to discover services with high QoS performance, and reduce the execute time at the same time. Finally, we proves the advantage of the new algorithm by comparing the time obtained by our proposed algorithm with the one achieved by other algorithm.
Modified TZ Search Method for Motion Estimation in Multi-View Video Coding
Authors: Yoon Hyo Sun , Kim Mi Young
Published: July 2013

Motion estimation (ME) plays an important role in digital video compression. But it requires huge complexity to find an optimal motion vector. Multi-view video is obtained by capturing one three-dimensional scene with many cameras at different positions. The computational complexity for motion estimation in multi view video coding increases in proportion to the number of cameras. To reduce computational complexity and maintain the image quality, a modified TZ search method for motion estimation in multi-view video coding is proposed in this paper. The proposed search method exploits the characteristics of the distribution of motion vectors to place the search points. Experiment results show that the speedup improvement of the proposed method over Pel Block Search and TZ search method (JMVC) can be up to more than 77 times and 1.8 ~4.5 times faster respectively by reducing the computational complexity and the image quality degradation is about to 0.05 ~ 1(dB) and 0.010.24 (dB) respectively.
A Multi-Server Erasure Code Algorithm Based on the Degree of Restriction
Authors: Ge Jun Wei , Miao Ai Hua , Fang Yi Qiu
Published: July 2013

Erasure codes received extensive attention in the cloud storage system because of its effective on saving storage space,However, due to the high recovery-overhead of erasure code, its application has been limited in these storage systems.For these problems,in this paper,we presents A multi-server Erasure code algorithm based on the degree of restriction to reduce the recovery-overhead from the restriction of date and parity's degree,and enhance the system performance to a certain extent ,ensure the reliability of the data of the cloud storage environment.
Phase Transformations and Photocatalytic Activity of TiO2 Powders Preparation via Microwave-Assisted Sol-Gel Method
Authors: Sangchay Weerachai , Chantawee Pichet , Madtharak Weerachai
Published: July 2013

The purpose of this research was to study phase transformation and photocatalytic properties of TiO2powders. TiO2powders were prepared by microwave-assisted sol-gel method. The prepared powders were refluxed at 18 W to 450 W for 1 h and dried at 180 W for 1 h by a conventional microwave oven. The phase transformations of powders were characterized by XRD and photocatalytic activities of powders were evaluated by UV-Vis spectrophotometer. The results show all samples reveal that only the anatase phase and has the crystallite size is 13.8, 10.3 and 9.2 nm when the refluxed at 180, 300 and 450 W. It was found that TiO2powders refluxed at 450 W were found to give the highest photocatalytic efficiency is about 90.06% under UV irradiation for 6 h.
Design of Hardware Trojan Applying on Cryptogrammic-Board for PC
Authors: Sun Hai Tao , Liu Jie , Liu Zhong Peng , He Xun Lai
Published: July 2013

The vulnerabilities in todays design and fabrication process have raised the possibility of malicious circuit modification as known as Trojans in a design to impact the functionality or transmit key information to the adversary. In this article the authors design a Hardware Trojan of transmitting key information towards FPGA. It is important to realize the implement mechanism and raise the attention to IC security.
The Research on Label Propagation Algorithm and Improvement Based on Local Information Mechanism
Authors: Deng Yong Jiang
Published: July 2013

Heuristic clustering method based on local information is introduced, and then the label propagation method based on local information is summarized, and the problem of the iterative process and using a random strategy to select a node belongs to the cluster structure are analyzed. Label propagation algorithm base on the similarity of node attributes is improved. At last, the experiments are used to help to discover the efficient and availability of the algorithm, and put the algorithm into preliminary application.
A Study on Rumor Propagation Model on Micro-Blogging Platforms
Authors: Zhang Yuan , Guo Ye
Published: July 2013

Rumor is one of the principal factors to affect public sentiment. With the development of Internet, the group of the micro-bloggers continuously grows. The special propagation mode of micro-blogging brings challenge to the rumor management. This article summarizes the features of information dissemination of micro-blogging and has a review on the traditional rumor propagation models. Furthermore, the process of rumor propagation on the micro-blogging platform is deeply analyzed, the micro-bloggers in the process of rumor propagation are classified and the rumor propagation model on the micro-blogging platform is initially studied and established. The study of this article lays a foundation for further study on rumor management on the micro-blogging platform.
The Practice of Constructing the Characteristic Database of the Library under the Network Environment
Authors: An Jing Yi
Published: July 2013

The characteristic database is the development direction of the construction of the digital resources of the library of higher vocational college. In this paper, through the analysis of status quo of Tianjin higher vocational college libraries, And through the practice of characteristic database construction in Tianjin Vocational Institute library. And provide reference for other higher vocational college library.
Security Evaluation on Speech Biometric Authentication System
Authors: Inthavisas K. , Sungprasert N.
Published: July 2013

A recent work utilized a transformation function to protect a DTW template. Unfortunately, a matching template was not protected properly. In this paper, we first show that an adversary can exploit the matching template to gain access to the system. Then, we introduce our scheme to address this problem. For this scheme, a hardened template is utilized to protect the DTW template. For the matching template, it is protected by a cryptographic framework. We evaluate the system with a public database: the MIT mobile device speaker verification corpus. The experimental results show that our scheme outperforms the other approaches.
Hardware Rules and Improved S-Box on AES
Authors: Zhang Shi Yong , Chen Gong Liang , Fan Lei , Li Jian Hua
Published: July 2013

The Advanced Encryption Standard (AES) was specified in 2001 by the National Institute of Standards and Technology. Our attempt is to define the hardware rule about hardware calculation and to find further reduce for the size of AES, by seeking to other normal bases.Finally, we give the result that our hardware implementation is better than the previous results.
Design and Implementation of Workflow Creation and Scheduling Mechanism on Collaborative System
Authors: Zhang Xia Xu , Pan Jing Chang , Wang Jie
Published: July 2013

The creation and reasonable dispatch of workflow plays an irreplaceable role in improving work efficiency, reducing operating costs and improving the execution on collaborative system. In this paper, we designed and implemented the creation and scheduling collaborative system, and proposed an interactive creation method by using drag-and-drop technique. In the created workflows, work assignments are configurable for users to provide more convenient service. The system provide communication platform for users at the same time, which is convenient for users to better understand workflow and solve problems encountered in work.
Transmission of Accurate Time Information Using Photonic Services
Authors: Vojtech Josef , Smotlacha Vladimir , Skoda Pavel
Published: July 2013

Advances in optical networks opened a new way of transmission of accurate time information. Presented approach requires a Photonic Service. The Photonic Service represents a new type of multi-domain, end-to-end network service. This type of service also enables IP, real-time and non-data transmission over photonic networks. The concept of photonic services was verified on a specialized metrology application of accurate time transfer distance of 1100km. The paper discusses networking definition of Photonic Service with its implementation, laboratory and field experiments and verifications.
The Application of Task-Driving Method in the Teaching of Mechatronics Design
Authors: Wang Xiao Li
Published: July 2013

According to the mechatronics design curriculum characteristics, in order to stimulate the interest of students in learning, task-driving teaching method was introduced. Through teaching reform, this paper proposed to take tasks for clues, to guide students to complete learning tasks. Finally, the teaching effect of the task-driving teaching mode was evaluated, which decreased repeated work and increased design efficiency.