bluuebunny/crossref_metadata_2025 huggingface dataset:
The Architecture of Instant-Preview Virtual Printing Server for the Preview Affixation Signature under the Mobile Environment
Authors: Chang Chen Wen , Lee Hsiao Ping , Tsai Yin Te , Tsao Yung Chung
Published: July 2013

The printing equipments of Information Technology (IT) have grown rapidly and diversely coping with heterogeneous requirements today, especially for those printers. but dot-matrix printers break those rules. Although laser-printers or inkjet printers ,etc. have become very popular and useful for printing issues. But the dot-printers are still not faded out from IT-users, especially for those commercial enterprises. The central characteristics are the carbon-papers that used for some formal and financial information printed on them to offer the customers, suppliers, users, official staffs to sign their signatures by their handwriting. Those carbon-papers printing with signature written one time can be divided over two copies with the same handwriting repeated automatically. Today, the laser-printers or inkjet-printers with high-technology can make printing colorful, high-quality, high-speed and multi-functions, but they are impossible to do the carbon-papers printing like the dot-matrix printers.
The previous researches proposed in "Template Printing Script Language (TPSL)" and " Virtual Printing Server (VPS)" have solved the Template Printing (TP) problems in heterogeneous environments including heterogeneous OS version, hardware, different brand printers or different model printers. But there are some problems for mobile environment unsolved with template-printing problems.
More and more users like to use mobile devices like mobile-phone or tablets PC equipped i-OS or Android-OS installed everywhere. Mobile applications working on the platform of i-OS or Android still meet the template printing requirements. If mobile-users sign their signatures on the template-printing papers like PC-users, the touch screen and writable characteristic of mobile devices become useless and unnecessary. The convenience, simplicity and mobility for mobile devices must enrich new functions based on the mentioned issues above.
The study proposes an architecture to extend the Visual Printer Server (VPS) to facilitate the mobile-users to preview the results of the template-printing on mobile environment to confirm the correct information and to write signatures by using theirs mobile devices. Finally the Instant-Preview Virtual Printing Server (IPVPS) merges the mobile-users' signatures into the formal printing results and sends them back to the mobile-users.
LMS Estimator in Diffusion Tensor Estimation
Authors: Yi San Li , Liu Zheng Gang , He Jina Feng , Ma Lei , Xiang Yan
Published: July 2013

DWIs do not contain signal bias caused by thermal noise but also outliers introduced by physiological noise. The least square estimator , the classic diffusion tensor estimator in the estimation of DTI, will produce the optimal result in diffusion tensor on the condition that the distribution of the error is Gaussian, while it cannot lead to a robust result if outliers exist. According to the problem exist in LS method, LMS robust estimator is proposed to estimate the diffusion tensor in this paper. Through experiments on the synthetic and real data, and comparing the estimate result of LMS estimator with LS estimator and M estimator, a more robust and more effective result can be produced in diffusion tensor estimation.
Research on Data Center of Wind Power Based on Cloud Computing
Authors: Li Guang Lei , Sun Shu Min , Cheng Yan
Published: July 2013

Building data center and data mining of wind power is essential to detect potential safety problems. The traditional data centers requires a lot of computing device and also have some disadvantages, such as limited scalability, high cost and low reliability. This paper presents the remote fault diagnosis system of wind power based on cloud computing and thoroughly analyzes construction demands and functional structure. Experimental results show that this system can effectively analyze mass monitored data, accurately assess equipment failure and reduce costs and the operating costs. This provides a new idea for cloud computing applied to data center of wind power.
Design and Realization of Solar Energy Maximum Power Point Automatic Tracking System
Authors: Wang Gang
Published: July 2013

Aiming at the low generating efficiency of the current solar energy generating system, solar energy maximum power point tracking control system based on STC89C52 is designed and made. The photoelectric detection and tracking is adopted as the control mode in the system. By using stepping motor as driving mechanism, comprehensive trace of the sun is realized by controlling the movement of tracking mechanism in the horizontal and pitching directions. Based on this, real-time detection of wind velocity and change of wind direction is realized by wind velocity and direction transducer which is equipped on the tracking mechanism, which makes the system automatically avoid the typhoon above level 8 to weaken the damage to panel by the storm. The experiment results of model machine indicate that the system has reliable performance which can satisfy the need of auto-solar track, it can also make the panel orient towards east again after darkness to realize daily circular run and it is of relatively high practical value.
Study on the Optimal Location of SMES in Power System
Authors: Zhou Xue Song , Shi Xue Qi , Ma You Jie
Published: July 2013

With the development of high temperature superconducting wire and related cryogenic technology, applications of superconducting device in power system has become the new hot spot of power engineering science research. As a perfect union of two revolutionary technologies, superconducting technology and FACTS, Superconducting Magnetic Energy Storage device (SMES) have superior properties and wide application. This article presents methods to selecting installation site of SMES device in the power system.
Active Circulating Current Reduction for Three-Phase Three-Level Modular Photovoltaic Grid-Connected System
Authors: Wang Fu Sheng , Wang Xiao Fei , Zhang Xing , Shao Zhang Ping , Liu Ping
Published: July 2013

According to the active circulating current existing in the three-phase three-level modular photovoltaic grid-connected system, an equivalent model of the active circulating current is built on the basis of the topology and control of the modular system, and the exciting source and the impedance are analyzed in detail. One kind of current-sharing loop is proposed. The error between the average reference current and the feedback current with PI controller is added to the output of the DC voltage loop. Thus the impedance of the active circulating current is enhanced within low frequency range and the active circulating current is reduced effectively. Lastly, A 10kW three-phase three-level modular photovoltaic grid-connected system is built, and experimental results demonstrate the correctness of the model analysis and reduction methods.
Risk Assessment of a Line Outage Based on Fuzzy Membership
Authors: Pan Xu Dong , Wu Jun , Liu Di Chen , Zhao Yi Jie , Dong Fei Fei , Song Chun Li
Published: July 2013

There are many uncertainties in power system. It is significant to consider the impact of uncertainties when comparing the importance of lines. The fuzzy set theory was applied and the fuzzy load flow calculation on the basis of line outage which had taken into account the generator output and load uncertainties were deduced. Overload, low voltage, and load shedding were selected as risk indexes. Then combined with the severity functions in the risk theory, the risk assessment models based on fuzzy membership have been put forward. Finally, the results of the three indexes and their comprehensive risk index about IEEE 118-bus system were given, and then the importance of each line in the system was compared, which confirms the value of the approach introduced in this paper.
Sensitivity and Response of a Triple-Axis Thermal MEMS-Based Acceleration Sensor
Authors: Dinh Xuan Thien , Ogami Yoshifumi
Published: July 2013

This paper investigates numerically the sensitivity and response of a novel tripleaxis thermal MEMSbased acceleration sensor. In this novel sensor, the heater forms an open ring on the top of a cavity, which improves the variation of temperature in the region just above the cavity center with vertical acceleration. By placing a temperature detector in this region, the sensitivity of vertical measurement is significantly improved and comparable with that of horizontal measurement whose detectors are outside the heater loop. Furthermore, the mutual effect is dramatically reduced. For instance, at the supplied power of 15mW to the heater, the sensitivity for the vertical measurement attains 0.062°C/g (g is gravity) while those for the horizontal measurements are 0.29°C/g, and cross sensitivities are less than 5%, for acceleration within 10g. The numerical analysis of response of the sensor shows that the sensor frequency bandwidth at 3 dB is about 70 Hz.
Distribution and Contamination of Chromium in the Surface Sediments of Salt River Estuary, Taiwan
Authors: Dong Cheng Di , Chen Chih Feng , Chang Yi Kuo , Chen Chiu Wen
Published: July 2013

Major objectives of this study are to evaluation the pollution and potential ecological risk of chromium (Cr) in the sediments of Salt River estuary, Taiwan. Nine monitoring stations were installed near the estuary of Salt River to collect sediment samples for analyzing Cr. Results of laboratory analyses show that contents of Cr in the sediments are between 32 and 79 mg/kg with an average of 58±17 mg/kg. The spatial distribution of Cr reveals that the Cr concentration is relatively high near the boundary of the river estuary, and gradually diminishes toward the harbor region. This indicates that upstream industrial and municipal wastewater discharges along the river bank are major sources of pollution. Results from the enrichment factor analysis imply that the sediments can be characterized as minor to moderately severe degree of Cr enrichment. Results of geo-accumulation index analysis indicate that the sediments can be characterized as moderate degree of Cr accumulation. Results of potential ecological risk index indicate that the sediments at Salt River estuary have low ecological potential risk.
Real-Time Monitoring of Anthocyanidin-Zeolite Complex Exposed to Skin Cells
Authors: Priprem Aroonsri , Porasuphatana Supatra , Srirak Sakolthep , Pantu Wiboon , Damrongrungrueng Teerasak , Leeanansaksiri Wilairat
Published: July 2013

Effect of an anthocyanidin-zeolite complex (A-Z) was investigated by real-time cell analysis in cultured human epidermoid carcinoma keratinocytes (A431) and human forehead fibroblasts (HFF). A mesoporous zeolite, a potential adsorbent applied in household products, was complexed with an anthocyanidin, extracted from blue flowers ofClitoria ternateaLinn. The A-Z was linearly correlated within a range of 0.05 0.3 mg/ml of the anthocyanidin, analyzed by HPLC, in accordance to Langmuir adsorption isotherm (r= 0.992,p> 0.05). In comparison to zeolite or anthocyanidin alone, A431 and HFF showed significantly cell survival with improved IC50upon exposure to A-Z (p< 0.05). The adsorbed anthocyanidin onto the zeolite reduced the toxic potentials of each.
Hybrid Prediction Method of Flight Accident Based on ARIMA and SVM
Authors: Duanmu Jing Shun , Gan Xu Sheng , Gao Jian Guo
Published: July 2013

The main target of flight accident prediction is to prevent the accident. To improve the pertinence and efficiency, the prediction must be strengthened to raise initiative of accident prevention. A hybrid prediction method, based on Auto-Regressive Integrating Moving Average (ARIMA) and Support Vector Machine (SVM), is proposed. First, ARIMA model is established to describe the linear relation in historical data, and then SVM model is built with regard to the residual error of ARIMA model in order to simulate the nonlinear law in historical data. The sum of prediction value of two models is to final hybrid prediction result. An application example show that the model based on this hybrid method has a good prediction to flight accident, and also is better than ARIMA or SVM model.
Research on Manufacturing Enterprise Training Management Information System Based on B/S Architecture
Authors: Yang Yu Xia , Yuan Cheng You , Wang Na
Published: July 2013

On the basis of the real needs of human resource training center in training, the staff training information management in the course of training is surveyed, in-depth analysis and research of complex information is carried out, especially the process management of training plan approval. With wide application and good prospects of the B/S three layers system architecture, enterprise training management information system is developed, in the tomcat5.5 and JDK1.5 environment. With JSP dynamic Webpage technology, using SQL Server 2000 as database server, different permissions of the different identity of users being controlled by E-R model in field. The workload of person training is reduced and efficiency is improved.
Mechanical Analysis on Tennis Forehand Drive
Authors: Zhang Xu Hui
Published: July 2013

At present, more and more tennis players use forehand drive play to carry out important tennis match in the tennis sports. In order to better tennis forehand pumping ball to understand technical motion analysis, the use of tennis forehand drive action to carry on mechanical analysis. Through the theoretical mechanics analysis of tennis forehand drive, to select our country excellent tennis players carry out tennis forehand drive experimental mechanical analysis, at the same time, tennis players use the forehand drive movement structure and the comprehensive effect of smoke ball for the different rotation tennis of forehand out, which can obtain the mechanics characteristic of tennis athletes forehand drive technology movement that conduce to tennis players' attack and defence skill training.
Safety Performance Evaluation of Green Building Based on Structural Equation Modeling
Authors: Hu Liu Xing
Published: July 2013

In order to give a comprehensive and objective evaluation of the work of construction enterprises and production safety, this article is based on the importance of production safety and service quality to explore the impact of construction factor of safety in production of construction enterprises. It uses the KPI theory to construct the four dimensions of management systems, construction equipment, and environmental conditions and other key performance indicators, and studies the structural equation theory to construct the SEM evaluation model, summarizing that the evaluation of the general program with examples from a quantitative point of view of safety performance evaluation. The results showed that the index system was built and SEM performance evaluation model can accurately evaluate the safety performance of the enterprise.
Study of Management Mode in Machinery Industry
Authors: Meng Jian Feng , Hou Jing
Published: July 2013

In recent years, along with the continuous development of China's economic construction and the needs of our population, more and more construction companies began to produce, which seems to have become the pillar of strength of China's economic construction in China. It is also a new era of social development to enhance an important force in the construction of China's comprehensive national strength. It involves multiple aspects of the construction industry, such as railways, highways, bridges, construction, hydraulic engineering, and construction of buildings and so on. The construction industry is directly related to the construction quality in the construction industry and construction progress, as well as the construction industry construction economic benefits for the development of construction machinery for the construction industry. Based on the production situation of China's construction machinery products, this paper analyzes the development of the overall situation of China's construction machinery industry. And take the Sany enterprise management as example to research the enterprise management mode of China's construction machinery industry.
Feature Extraction of the Crack AE Signal Using HHT Transform
Authors: He K.F. , Zhang Z.J. , Li X.J.
Published: July 2013

The use of Hilbert-Huang transform (Hilbert-Huang transform, HHT) on crack AE signal study, through empirical mode decomposition (empirical mode decomposition, EMD) AE signal is decompose into a number of intrinsic mode functions (Intrinsic mode Function, IMF), Hilbert spectrum and Hilbert marginal spectrum are calculated. The results show that crack depth structure bearing of acoustic emission are detected accurately by the number of acoustic emission events, time and crack the degree from Hilbert spectrum and Hilbert marginal spectrum.
Chaotic Characteristics of Workface Gas Emission Time-Series Data
Authors: Qiao Mei Ying , Lan Jian Yi
Published: July 2013

The chaotic time series phase space reconstruction theory based in this paper. First, the appropriate embedding dimension and delay time are selected by minimum entropy rate. Followed the chaotic behavior are analyzed by the use of the Poincare section map and Power spectrum of time series from the qualitative point of view. Based on NLSR LLE the quantitative study of the chaotic time series characteristics indicators is proposed. Finally, the gas emission workface of Hebi 10th Mine Coal is studied. The several analytical results of the above methods show that: the gas emission time-series data of this workface has chaotic characteristics.
Research on a New Type of Integral Sum Graph with the Sequence Label Method
Authors: Shi Duan Yin , Zhang Xiao Peng , Li Wen Yu
Published: July 2013

Integral sum graph was introduced by Harary. This theory is a labeling of graph. From a practical point of view, integral sum graph labeling can be used as a compressed representation of a graph, a data structure for representing the graph, and an alternative method for defining and storing graphs. In this paper, to give an integral sum labeling of fan graph, and to prove that all multiple composite fan graph are integral sum graphs with the sequence label method.
A Novel Fault Line Selection Method of Distribution Network Based on Wavelet Packet Energy
Authors: Wang Xiao Wei , Zhang Yu Jun , Hou Ya Xiao
Published: July 2013

This article introduces a novel fault line selecting method which is based on the wavelet packet energy. With the db10 wavelet packet decomposition of zero-sequence transient current signal of the fault branch line, it can eliminate the component of base band of reflecting the fundamental frequency. Based on this, it can get wavelet energy of the various branch line. If a line of energy is obvious superior in contrast with the other line energy, then it is the first decision for branch line fault. Secondly, it can give the possible fault line sorting according to the principle of from large to smalland start the circuit recluse to monitor the current of the order in sequence. While 3U0 is disappeared, then determining the fault line is the maximum energy lines. If not, then continuing to monitor energy big line until the fault line is selected. The simulation results show that the accuracy rate of the fault circuit selecting method is higher, it can be applied to the fault circuit selecting of cable mixed in distribution networks.
Community Automatic Irrigation Control System Based on Zigbee
Authors: Li Jin , Han Dong Qi
Published: July 2013

This paper designs a community automatic irrigation control system based on Zigbee aiming at the shortcomings of existing community plant irrigation and the characteristics of the community. The green space of the community is divided into a plurality of irrigation area, each irrigation area and main control module adopts distributed structure network, using TIs CC2530 as the core processor of Zigbee wireless micro processing module, realized reliable data transmission between the regional control node and the master control module. The experimental results show that the system realizes effectively automatic saving water irrigation, and it is economical and practical.
Study on the Safety of Bridge Structure
Authors: Zhang Yu , Wang Yu Dong
Published: July 2013

YangMingTan bridge is the longest and super large span river's bridge located on the north area of ChangJiang river in China .That is used on November 6,2011 which span from its north area of the intersection of the third road and ShiMao road. The south location is across the Songhua river channel and tricyclic elevated road linking. The length of the bridge is about 15.42 kilometers and the wide is 41.5 meters,. Two-way eight lane, the design speed of it is 80 kilometers, the biggest accommodation of which can meet the rush hour 9800/h motor vehicles passing.
Study of Internet of Things in China
Authors: Wang Liang , Zhu Li Ke
Published: July 2013

With the purpose to stimulate the technical development and to seek the new growth points in economy, governments of different countries attach great importance to the technical programming of the new generation, giving priority to the internet of things. It is also stated in the twelfth five-year-plan outline for national economic and social development of the People's Republic of China that the national infrastructure should develop with the safety of broadband blending to push the application of the internet of things.
Study of Auto-Motive Network Based on CAN-BUS
Authors: Li Lin , Shan Chang Ji , Luo Jun
Published: July 2013

With the speedy development of Auto-industry, CAN-BUS technology is becoming more and more mature day after day. This paper makes a study of the application of CAN-BUS technology in lighting control systems and failure finding model while making an analysis of the characteristics of the application of CAN-BUS technology in Auto-motive Network which paves way for the further studies of CAN-BUS technology.
ASIC Design of Encoding Circuit in Low Frequency Read-only RFID in Manufacturing Engineering
Authors: Lai Peng Fei , Jing Wei Ping
Published: July 2013

For the two kinds of commonly used codes in low frequency read-only RFID tag: Manchester encoding and Differential Bi-Phase encoding, we designed the corresponding encoding circuit, as shown in Fig. 5 and Fig. 10. It was fabricated by SMIC 0.35um CMOS process through full custom design method and has been successfully applied to a read-only RFID tag based on ISO/IEC 11784/5 standard. The chip testing result shows that the designed circuit can achieve ideal encoding effect, as shown in Fig. 14 and Fig. 15, which possesses the properties of high accuracy and strong anti-disturbance.
Research on Water Pollution Monitoring System
Authors: Li Huo You , Chen Shao Jie
Published: July 2013

The low-consuming wireless sensor network is becoming more and more popular; this essay drafts a proposal for wireless sensor network system design. The proposal describes detailed hardware and software designs of sensor node. With a feature of self-organized and self-adaptive, the system remains keep good communication even the location of network node changes. This system is applicable to synchronized monitoring on water pollution in rivers, lakes, springs and oceans.
Environment Protection Based on Internet of Things
Authors: Hu Rui , Wang Yi , Wang Feng
Published: July 2013

As a new high technology, Internet of Things (IOT) technology has been obtaining great development and becomes more and more popular; meanwhile it is widely used in all industries. Moreover, with the current technologies and economic development having made remarkable achievements the environment of human beings is going from bad to worse. IOT technology provides ideas and technology feasibility for environmental protection. Based on the requirements of the present monitoring project of energy-saving section in industry, in this paper, firstly, we present the development of IOT in recent years then we analyse the basic concept and key technologies of IOT and present an integral investigation on IOT in environment protection, in addition, we analyse and summarize the network structure and the current application situation. Although IOT is the great breakthrough in information technology development, there still have many deficiencies. Finally, we discuss the advantages of IOT in environment protection and challenges IOT is facing and future work for environment protection of IOT.
Experimental Research on the Predictive Model for Surface Roughness of Titanium Alloy in Abrasive Belt Grinding
Authors: Cheng Rong Kai , Huang Yun , Huang Yao
Published: July 2013

Titanium alloys have been applied to aerospacemedical and other fields. The surface roughness of titanium alloy about these areas is very high. Based on the results of orthogonal test, belt grinding surface roughness prediction model of TC4 Titanium alloy is established using linear regression method. The significant tests of regression equation are conducted and proved that the prediction model has a significant. The results indicate that the model has reliability on the prediction of surface roughness, abrasive belt grinding pressure has certain influence on the surface roughness, and grain size of belt and the belt linear speed have high significant influence on surface roughness and the influence coefficient are-0.9378 and-0.2317. While the contact wheel hardness and workpiece axial feeding speed have no significant influence on surface roughness.
Physicochemical Model of Sodium Silicate Melts and Thermodynamics of Qn - Species
Authors: Koroleva Olga N. , Tupitsyn Aleksey A. , Bychinskyi Valeriy A.
Published: July 2013

A physicochemical model of sodium silicate melts in the region from 0 to 67 mol. % Na2O is constrained. A database of sodium silicate melts is formed and coordinated with the help of high-temperature Raman spectroscopy data. The formed model shows quantitative estimation of component changes in melts vs. temperature and composition.
Optimization of Ultrasonic Imaging Using Persistence and Filter Technology
Authors: Guo De Quan , Yang Hong Yu , Zhang Cong Yao , Liu Dong C.
Published: July 2013

B-mode ultrasonic images are often pervaded by the electronics noise and speckle artifact, which may make the interpretation of medical images difficult. In this paper, a legible method for ultrasonic image is constructed and it can be effective to suppress the noise and improve the images quality. Dynamic persistence technology based on temporal multi-frames is utilized to smooth the electronics noise and even lower speckle artifact. To reduce computing complexity, a sum table method and conjugate direction search approaches are applied to speed up estimation of motion vector. The guided image filter strategy is used to enhance the contrast and detail resolution for the processed image by persistence. Experimental results show that the proposed method is effective to smooth noise and enhance contrast of ultrasound image in vivo.
Evaluation for Manufacturing Stabilization of an Architecture Insulating Material
Authors: Jung Dong Won , Jang Eun Sil , Jeong Ji Hyun , Noh Kyoo Ik , Son Jae Hwan
Published: July 2013

In general, the process of extrusion can experience some problems, such as flow problems inside molds, and strain problems of products as a result of the cooling speed. We explore the flow problems and temperature problems inside the die of an extruding machine. An optimal model has been investigated experimentally with different types of die slots and lips. The area of stress concentration has been examined, and the life has been predicted by structural analysis and fatigue analysis. An experiment was carried out to verify the stabilization of the model by modal analysis and analyzing manufactured specimens.
Nanogold Resonance Rayleigh Scattering Method for Trace NO2- Based on P-Aminobenzene Sulfonic Acid-Α-Naphthylamine Colored Reaction
Authors: Wen Gui Qing , Li Ting Sheng , Jiang Zhi Liang
Published: July 2013

In acidic condition, NO2- combined with p-aminobenzene sulfonic acid by diazotization, and then reacted with α-naphthylamine to form purple azo dye. The resonance Rayleigh scattering (RRS) signal of the color system was detected by nanogold probe. Under the chosen conditions, the decreased RRS intensity ΔI (ΔI= Ib - I) at 500 nm was linear to the NO2- concentration in the range of 7.0×10-2-42.0μmol/L, with a regression equation of ΔI=6.72 C - 6.93, a correlation coefficient of 0.9982 and a detection limit of 2.6×10-4 mol/L NO2-.
Case Study for Bolted T-Stub Connection Design
Authors: Jong Wan Hu , Hee Myung Jang
Published: July 2013

This paper is mainly performed to investigate T-stub connection that is described on the basis of ideal strength limit states. The determination of T-stub based on the full plastic strength of the steel beam in accordance with 2005 AISC Seismic Provisions. The T-stub connections considered herein were performed to include the T-stub component of bolted moment connection frames. Therefore, the proposed T-stub models will be evaluated by comparing the required factored bar strength. T-stub components using ten high strength bolts with wider gages are demonstrated in this design. In addition, equations for connection design will be described in this paper. Finally, new design methodology is applied to T-stub connections suggested in this study.
Numerical Study of Large Deformation Problem of Nonlinear Viscoplasticity
Authors: Kim Dong Keon , Hu Jong Wan
Published: July 2013

Large deformation problem under dynamic loading has been an issue for mechanical engineer and researcher who study continuum mechanics because of its complex behavior. This study focuses on a large deformation problem based on nonlinear viscoplasticity. Therefore, the Johnson-Cook constitutive model and the Zerilli-Armstrong constitutive model are used to analyze and to understand this stretch example under dynamic loading. Numerical results for stretch example using both constitutive models were compared with the results from ABAQUS/Explicit that considered mesh sensitivity analysis, and were then applied to model failure processes of OFHC copper, with consideration of geometric nonlinearity based on concepts of progressive damage mechanics. This approach helps us to understand and to predict the behavior of large deformation and to perform damage failure analysis.
On-Site Monitoring of Floor Failure Depth with High Confined Water and Mining Risk Assessment
Authors: Liu Shu Xin , Liu Chang Wu , Kang Ya Ming , Yang Duo
Published: July 2013

About under-group coal seams mining with the threat of high-pressure ordovician water, conventional mining technology by draining depressurization usually causes environmental issues such as soil erosion and ground subsidence etc.,By using grouting reinforcement technology, this paper changes floor direct charge layer into relatively separatedwater layer in the coal seam and achieves the goals of sealing the water inrush channel, moreover, on the basis of coal floor failure depth analysis and monitoring, the paper evaluates risk of water-inrush from seam floor when face length increases, On this basis, puts forward a reasonable working face length and mining technology, and has abtained good economic and social benefits in practice.
The Electric Spindle Built-in Motor Thermal Equilibrium Active Temperature Control Model
Authors: Cai Li Gang , Zhuo Xu , Zhao Yong Sheng , Liu Zhi Feng
Published: July 2013

Based on the structure characteristics of electric spindle built-in motor and numerical heat transfer theory,electric spindle built-in motor physical heat conduction model was given and a mathematical temperature control model for the electric spindle built-in motor was established. According to the mathematical temperature control model, controllable factors for the heat balance was determined. By electric spindle own screw channels, using this mathematical temperature control model to adjust the flow speed and fluid medium temperature, the built-in motor quickly reached heat balance and maintained temperature field stability in the electric spindle start-stop and using process. Then the theoretical calculations and simulation on the electric spindle built-in motor was conducted.This model is designed to enhance high-speed precision spindle machining accuracy and the use of performance.Nomenclature:
Bezier Curve Modeled Phase Diagram
Authors: Bao Hong
Published: July 2013

A new management method for storing and constructing phase diagram is proposed for purpose of reducing the amount of storage and improving the readability of the phase diagram. We name the new management method as Bezier curve modeled phase diagram (BCMPD) . An entire phase diagram is consists of a set of cubic Bezier curves and straight lines under the BCMPD. Bezier curve based data structure is used for existing phase diagram storage. is modeled by a cubic Bezier curve. The strategy of Bezier curve modeling each piece of curve within a phase diagram is discussed in detail. Experimental results proved the feasibility of the strategy. By using the proposed modeling strategy, users can construct a phase diagram more rapidly and precisely. Detail information within a phase diagram can be read easily by appointing a location in the drawing.
As an Alternative Membrane: Functional NanoParticles/Polymer Composites Membranes for Proton Exchange Membrane Fuel Cells (PEMFC)
Authors: Bozkurt Ayhan , Aslan Ayşe
Published: July 2013

Novel proton conducting nanocomposite membranes included binary and ternary mixtures of acid modified nanotitania particles particles with polymers such as poly (vinyl alcohol) (PVA),pol (vinyl phosphonic acid), sulfonated polysulfone (SPSU) and poly (1-vinyl 1,2,4-triazole) (PVTri) . The interaction of functional nanoparticles with the host matrix were searched by FT-IR spectroscopy. The homogeneous distribution of functional nanoparticles in the membranes was confirmed by SEM micrographs. The spectroscopic measurements and water/methanol uptake studies suggested a complexation between polymers and sulphonic acid that inhibited the leaching out of acidic units. The TGA results verified that the presence of modified nanoparticles in the composite membranes the thermel stability of the membranes enhanced up to above 200 °C.
Study on Schottky Diode Characteristics Improving by X-Ray Irradiation
Authors: Klinsanit Sani , Srithanachai Itsara , Ueamanapong Surada , Khunkhao Sunya , Nararug Budsara , Suriya-Amaranout Chaba , Niemcharoen Surasak
Published: July 2013

The effect of soft X-ray irradiation to the Schottky diode properties was analyzed in this paper. The built-in voltage, leakage current, and work function of Schottky diode were investigated. The current-voltage characteristics of the Schottky diode are measured at room temperature. After irradiation at 70 keV for 55 seconds the forward current and leakage current are increase slightly. On the other hand, the built-in voltage is decrease from the initial value about 0.12 V. Consequently, this method can cause the Schottky diode has low power consumption. The results show that soft X-ray can improve the characteristics of Schottky diode.
Optical Properties of Cu0.95Pt0.05Fe0.97Sn0.03O2 for p-Type Transparent Conducting Oxide Materials
Authors: Ruttanapun Chesta , Kahatta Sagulthai , Boonchom Ban Jong , Vittayakorn Naratip , Thongkam Montree , Kongteweelert Samart , Woramongkonchai Somsak , Chaiyasit Pachenchaiput
Published: July 2013

The Cu0.95Pt0.05Fe0.97Sn0.03O2 sample has been synthesized by a solid-state reaction to investigate optical properties of materials of transparent conducting oxide. Crystal structure was characterized by XRD. The Seebeck coefficient and electrical conductivity were measured in the high temperature (300 to 860 K), while the XPS and UV-VIS-NIR spectra were analyzed at room temperature. The XRD peaks confirm the samples forming the delafossite structure phase. The Seebeck coefficient reveals the samples displays the p-type conducting. The XPS spectra show the Sn2+ state stabling in this compound. The optical direct gap is 3.45 eV as a visible-transparent material. These results support that the Cu0.95Pt0.05Fe0.97Sn0.03O2 oxide compounds, of which the Cu1+ and Fe3+ sites are substituted by the Pt1+ and Sn2+ ions respectively, are p-type transparent conducting oxide materials.
A Study on the Shear Characteristics of Fine Blanking for Al 5052 and Eco-Al 5052 Sheet
Authors: Kim Jong Deok , Heo Young Moo , Won Si Tae , Kang Ho Keun
Published: July 2013

Fine blanking is a press-working process that permits the production of precise finished components which are cleanly sheared through the whole cutting surface. It can be eliminated secondary operations, such as milling, grinding, etc. Recently, many studies on the weight reduction of automobile for fuel saving were underway. Especially, there are many examples which new materials were applied for automotive parts. Eco-Al is the new material which is replaced Mg of aluminum alloy with Mg+Al2Ca, therefore Eco-Al material has improved mechanical properties and formability. In this paper, the shear characteristics of Eco-Al 5052 and Al 5052 parts which had been blanked by fine blanking process were analyzed and compared. As a result, even though Eco-Al and Al sheets were not treated for fine blanking, the cutting surface of Eco-Al and Al parts had the shear surface of more than 85% and dimensional accuracy of more than ISO accuracy grade 9.
Osteosynthesis Material Failure: Poor Fixation or Material Defect
Authors: Cirstoiu Catalin , Ene Razvan , Popescu Dan , Cirstoiu Monica
Published: July 2013

Rising rate of high energy trauma, mainly due to increasing life expectancy of the population on a global scale in recent decades and more intense daily activity, involves the need to address the increase of more complex fractures, thus putting to the test the experience of trauma surgeon and the quality of various osteosynthesis materials. Metallic materials designed for orthopedic implants must present a group of properties that strength, biocompatibility and resistance to degradation (corrosion or wear) are of primary importance. To reach these objectives, the materials used in the manufacture of orthopedic implants must meet standard requirements. These requirements include primarily standard chemical composition, microstructure and macroscopic appearance. In this paper we present a study to determine the cause of degradation of osteosynthesis material. The most frequent causes of degradation include poor or unstable fixation of osteosynthesis or material defects. A valuation technique, including optical and scanning electron microscopy (SEM) was used to assess aspects of macroscopic and microstructural degradation and chemical composition of implants. These assessments showed that both design errors and inappropriate surgical procedures were due to failures.
Theoretical and Numerical Study on a New Hybrid FRP Wrapped Anchor
Authors: Zhang Kai , Zheng Bai Lin , Yang Qing
Published: July 2013

A new hybrid FRP wrapped anchor is developed to solve the poor ductility of FRP anchor. The designability of functionally graded material (FGM) makes it possible to connect the high ductility metal to FRP material. Numerical and analytical methods are compared in solving plane stress FGM cantilever beam problem. The results show the analytical method's simplification in constraint makes it inaccurate in solving displacements. Consequently, the numerical method is employed to analyze the hybrid FRP wrapped anchor in the ideal condition. The results indicate the hybrid FRP wrapped anchor solved the current problem theoretically.
A Study of Design and Application of Solar Energy Power Supply System in Highway Tunnel Lighting
Authors: Chen Xiao Dong , Chen Dong Feng , Zhang Fei Jun
Published: July 2013

In China, because it is difficult to pay the high electricity, resulting in a large number of highway tunnel illuminations is insufficient. In order to solve remote highway tunnel lighting power supply problem, we use the solar photovoltaic system, developed and built a solar lighting system in highway tunnel. This paper introduces the design and application process of this system.
Numerical Simulation of Filling Process in HPDC by Lattice Boltzmann Method
Authors: Cao Wen Jiong , Dong Shou Bin , Lu Xin Wei , Zhou Zhao Yao
Published: July 2013

A general lattice Boltzmann Method (LBM) to simulate filling process of high pressure die casting (HPDC) is investigated. Boundary conditions are studied and the free surface model is established by combine the LBM with VOF method. The final model was substantiated by simulating filling process in HPDC in three dimensions. The simulated results from LBM and finite difference method (FDM) were compared with the experiments. The results show the former is in a better agreement with experiments. It demonstrates the efficiency and precision of this LBM model in describing flow pattern in filling process.
Research on Gas Load Forecasting Using Artificial Neural Network
Authors: Shi Wei Ya
Published: July 2013

In this paper, we give a short survey and analysis on natural gas load forecasting technology using artificial neural network. Different input variables are used to compare the result of forecasting the short term gas load. The experiment results show that the BP neural network can be used to find the implicit relation among historical gas load, weather condition and the future gas load. We also conclude that the input variables have no important influence on the accurate forecast.
A Novel Hybrid Optimization Method of Shuffled Frog Leaping Algorithm and Particle Swarm Optimization
Authors: Lin Mei Jin , Luo Fei , Xu Yu Ge , Luo Long
Published: July 2013

Shuffled frog leaping algorithm (SFLA) is a meta-heuristic algorithm, which combines the social behavior technique and the global information exchange of memetic algorithms. But the SFLA has the shortcoming of low convergence speed while solving complex optimization problems. Particle swarm optimization (PSO) is a fast searching algorithms, but easily falls into the local optimum for the diversity scarcity of particles. In the paper, a new hybrid optimization called SFLA-PSO is proposed, which introduced PSO to SFLA by combining the fast search strategy of PSO and global search strategy of SFLA. Six benchmark functions are selected to compare the performance of SFLA-PSO, basic PSO, wPSO and SFLA. The simulation results show that the proposed algorithm SFLA-PSO possesses outstanding performance in the convergence speed and the precision of the global optimum solution.
A Simple Route to Synthesize Ferromagnetic Binary Calcium Iron Pyrophosphate CaFeP2O7 Using Aqueous-Acetone Media
Authors: Pachernchaipat Chaiyasith , Chesta Ruttanapun , Montree Thongkam , Samart Kongteweelert , Somsak Woramongkonchai , Banjong Boonchom
Published: July 2013

A binary calcium iron pyrophosphate CaFeP2O7 was synthesized by solid state route using the mixing of calcium carbonate, iron metal and phosphoric acid in aqueous-acetone media at 600 °C. The XRD datum indicates the formation of CaFeP2O7 phase without the presence of any phase impurities. FTIR result indicates the presence of the P2O74- anion in the structure. Sheet-like microparticle of CaFeP2O7 was revealed by SEM. Room temperature magnetization result showed ferromagnetic behavior of the synthesized CaFeP2O7, with saturation-specific magnetization value of 11.067 emu g-1 at 10kOe. The magnetic feature of the synthesized CaFeP2O7 in this work compared with M2P2O7 (M = Ca and Fe), its isotypic (CaMP2O7 (M= Mn and Co) and CFeP2O7 (C= Co and Cu) reported in our previous works is important properties for specific applications.
Multi-Scale Seamless Visualization of the Global Terrain Based on DQG
Authors: Yu Huan Ju , Li Yun Ling , Chen Zong Juan , Xiong Ting
Published: July 2013

Real-time and seamless visualization of the Earth terrain based on Global Discrete Grids is a subject of considerable current attention. In this paper a multi-scales visualization model of the global terrain based on DQG (Degenerate Quadtree Grid) is approached. Our approach starts with a partition method, called Degenerate Quadtree Grid (DQG) and an encoding scheme of the corresponding grids is introduced briefly. Next, a multiple level of detail model related to viewpoint is presented. In this model, a criterion of terrain model simplification based on viewpoint and roughness of the degenerate quadtree node is developed. Then, making full use of the characteristics of quadtree structure, the cracks within quadtree blocks are induced by simplification. Thus, the cracks splicing are all seamless. In the end, the experiment and analysis are made with the global terrain data, GTOPO30. The results illustrate that: (1) the global terrain based on the DQG is seamless, hierarchical, and regular over the whole Earth; (2) the quantity of global DEM data can be reduced significantly; (3) the visual effect of the global multi-scale terrain is seamless by the model simplification ensuring the accuracy and efficiency of the terrain display.
Image Reconstruction on Quincunx Patterned Green Channel
Authors: Jeon Gwang Gil
Published: July 2013

This paper addresses the issue of the quincunx patterned green channel interpolation method that is obtained by single sensor cameras. Our goal is to reconstruct the green channel in Bayer color filter array (CFA) data. We present a new filter-based method for the reduction of image artifacts in green channel. To reconstruct green channel, we trained a filter using least squares method. Experimental results confirm the effectiveness of the proposed method. Compared to other bilinear and bicubic filters, the improvement in quality has been achieved.
Differences of Human Reading Mode between Reading a Story and Statistical Information: An Eye Movement Study
Authors: Liu Zhao , Lu Sheng Fu , Li Mi , Zhou Yu , Wang Kai Ming , Tan Xue , Shang Tong , Zhong Ning
Published: July 2013

In this paper, we used eye tracking technology to investigate the cognitive mechanisms during peoples reading of narratives and statistical information, and our main study included two aspects: first, we explored the differences in behavior of people during their reading of different text information from the cognitive behavior view; second, we used the method of pattern recognition to classify the eye movement data which reflects the human thinking mode. We found different reading modes in different texts.
A Solution for Image Matching Error in SURF
Authors: Xiong Xing , Choi Byung Jae
Published: July 2013

SURF (Speeded Up Robust Features) is known to be a famous and strong but computationally still expensive.It has not attained real-time performance yet. In this paper we analysis the SURF in orientation and descriptors extraction method forresolvingsome problems. For example, matching images through the SURF algorithm spends too much time and causes some errors by integral images. We propose a novel orientation and descriptor algorithm to improve the conventional SURF. Theproposed method shows some advantages such as a faster speed.
Development of Exoskeleton Suit for Rehabilitation
Authors: Panich Surachai
Published: July 2013

This paper introduced the rehabilitation for leg lower limp with exoskeleton suit. The rehabilitation is mainly classified in three modes, which are active, passive and active - assistive mode. In active mode, it provides appropriate resistance to the muscles to increase endurance and strength, because the patients must lift leg lower limp by their effort. In passive mode, patients cannot participate in process of rehabilitation and no effort is required, because patients leg lower limb will be driven by exoskeleton suit. In the last active-assistive mode is the combination of active and passive mode for patients, who has capability to move their joints but not reached the desired level. The control algorithm is designed to achieve rehabilitation modes by using classical PID controller.