bluuebunny/crossref_metadata_2025 huggingface dataset:
Measurements of Thermal Properties of Different Building Materials
Authors: Lakatos Akos
Published: August 2014

In this paper we present measurements and measurement methods carried out on construction and building materials in our Building Physics laboratory in University of Debrecen, Faculty of Engineering, Hungary. The investigations with different methods are so significant from the point of view of thermal sizing and designing of the buildings. The laboratory measurements of the thermal properties of materials and in-built structures are very important either for the manufacturers or the designers. In this communication the measurement result are presented. Thermal conductivities will be calculated after steady state thermal resistance measurements both from Calibration hot box (CC) and Heat Flux measurements carried out by Hukseflux (HF) apparatus. Calorific values of some insulating materials will be presented after combusting them in a CAL2K ECO type bomb calorimeter.
Analysis of the Temperature Evolution during Lined Pipe Welding
Authors: Obeid Obeid , Alfano Giulio , Bahai Hamid
Published: August 2014

A numerical analysis of thermal phenomena occurring during lined-pipe welding is presented in this paper. Numerical models of surfaces and volumetric heat sources were used to predict the time evolution of the temperature field both in a corrosion-resistance-alloy (CRA) liner, made of SUS304 stainless steel (SS), and for the single-pass girth welding of a carbon-manganese (C-Mn) steel pipe. Using the finite-element code ABAQUS, three-dimensional non-liner heat-transfer analyses was carried out to simulate the gas-tungsten-arc (GTA) welding process used in liner welding and the metal-inert-gas (MIG) welding process consumed in C-Mn steel backing welding. FORTRAN user subroutines were coded to implement the movable welding heat source and heat transfer coefficient models. The thermal history was numerically computed at locations where circumferential angles from the welding start/atop position are 90°, 180° and 270° with respect to axial distances from the weld centerline (WC).
Keywords: Finite element analysis FEA, CRA Liner, C-Mn steel backing, Heat source, Thermal history.
Calculation of Heat Transfer in Heterogeneous Structures such as Honeycomb by Using Numerical Solution of Stochastic Differential Equations
Authors: Gusev Sergey A. , Nikolaev Vladimir N.
Published: August 2014

A computing method of heat transfer in heterogeneous structures is proposed in the paper. The problem is mathematically described as the parabolic boundary value problem with discontinuous coefficients. The generalized solution of this parabolic problem can be approached by the solution of the parabolic boundary problem with smoothed coefficients. To obtain estimates of the solution of the problem with smoothed coefficients the method of numerical solution of stochastic differential equations (SDE) is applied. Some numerical results for honeycomb structures are presented.
A Numerical Study of the Thermal Critical Component on FORMOSAT-7 with Phase Change Material
Authors: Wang Chen Hao , Chen Meng Hao , Huang Jeng Der , Chen Chia Ray
Published: August 2014

A numerical study of the effectiveness of phase change material (PCM) used on FORMOSAT-7 at the preliminary design phase is presented in this study. N-eicosane is used as the PCM for its melting temperature. To compare the performance of PCM, different messes of PCM are applied for high-power-dissipating component with short-duty-cycle. The results show that PCM can improve the thermal stability of component by not only moderating peak temperature for worst hot case but also preventing sudden temperature decrease when the power mode of component changed. However, mass addition of PCM reduces the duration of the maximum temperature and the minimum temperature due to the better thermal conductivity of solid phase. Therefore, an optimization of mass is suggested for the application of PCM.
Application of Differential Quadrature Method (DQM) to Heat Transfer and Entropy Generation Problems
Authors: Fidanoglu Melih , Kömürgöz Güven , Özkol Ibrahim
Published: August 2014

In this study, the entropy generation due to the flow of a gravity-driven laminar viscous incompressible fluid through an incline channel is investigated. Fully developed flow field is solved for a Newtonian fluid. Then, the temperature field is numerically resolved using Differential Quadrature Method (DQM) subject to isothermal boundary conditions on the walls and constant rectangular profile at the inlet. The result of DQM is compared to analytical solution and method of lines (MOL) numerical method. Rate of entropy generation is found and its relation with temperature and velocity field is examined.
Evaluation of Correlations for Natural Convection on the Behavior of a Wire-on-Tube Condenser
Authors: da Silva José Antônio , dos Santos Guzella Matheus , Maia Cristiana Brasil , de Morais Hanriot Sérgio , Cabezas-Gómez Luben
Published: August 2014

This paper outlines the evaluation of the influence of different empirical correlations to compute air-side heat transfer coefficient on the behavior of a wire-on-tube condenser by performing numerical simulations. A fully predictive simulation model based on first-principles equations and empirical correlations for heat transfer and friction factor is considered. Two-phase flow is modeled using homogeneous model and a void fraction correlation available in the literature is considered. Results show that for the correlations tested, different estimations of heat rate rejected to the environment can be obtained and hence, different thermal hydraulic behavior of the condenser can be obtained. This influence is critical, especially when the global numerical simulation of a domestic refrigerator is considered.
Influence of MoN Sputtering Coating on Wear Resistance of a Fishing Net-Weaving Machine Component
Authors: Srisattayakul Parinya , Saikaew Charnnarong , Wisitsoraat Anurat , Intanon Naphatara
Published: August 2014

Wear resistance of an upper hook, an important fishing net-weaving machine component manufactured from stainless steel, was improved by systematically investigating the influence of molybdenum nitride (MoN) sputtering coating using experimental design. Three factors of MoN coating on upper hooks including DC current, operating pressure, and Ar/N2 ratio were studied and optimized for minimum wear of the machine component. After conducting wear testing on the fishing net-weaving machine in a participating company, it was found that the three coating factors influenced the wear of the machine component. In addition, the optimal operating condition for MoN sputtering coating that produced the minimum wear was obtained at DC current of 0.45 A, operating pressure of 0.01 mbar, and Ar/N2 ratio of 0.5.
BicriteriaHeuristic for Unrelated Parallel Machine Scheduling Problem
Authors: Lin Yang Kuei , Lin Hao Chen
Published: August 2014

In this research, a bi-criteria heuristic is proposed to find non-dominated solutions for scheduling unrelated parallel machines with release dates that minimizes makespan andtotal weighted tardiness.
Improving the Mechanical Properties of a Machine Component of a Fishing-Net Weaving Machine by Duplex Coating
Authors: Intanon Naphatara , Saikaew Charnnarong , Wisitsoraat Anurat , Srisattayakul Parinya
Published: August 2014

In this study, the mechanical properties of a weaving machine component made of cast stainless steel are improved by the duplex coatings of electroplated hard-chrome and sputtered metal nitride layers. The effects of the first and second coat layers of three metallic nitrides, including TiN, TiN-Ni and NiN, were comparatively studied. The structural characteristics of the coating materials were studied by scanning electron microscopy, energy dispersive X-ray spectroscopy and X-ray diffraction. Vicker hardness was then measured by nanoindenter. It was found that the duplex coating surfaces gives better surface quality than those of single-layer coated ones. In addition, the hardness of single-layer coating either with hard-chrome or metal nitride was only 2-3 times higher than uncoated ones whereas duplex coating with both layers synergistically increases the hardness by a factor of 7-8. Moreover, duplex coating with TiN exhibits relatively high hardness compared with other metal nitrides.
Viscous Dampers Utilized at an Operating Electronic Facility for Reducing Seismic Risk
Authors: Chang Heng Sheng , Ge Ji Ping
Published: August 2014

Using supplemental energy dissipation devices into the structure to increase the damping ratio for reducing the responses of seismic activity has become more and more popular. This paper presents a case study of seismic retrofit strategy, utilizing a type of passive energy dissipation device, namely, the viscous damper, in order to make an ongoing chips produced facility resistant to seismic activity. The building in question was a chips produced facility belonging to a semiconductor manufacturing company. This was a double FAB where the structure system was divided into an island building and an RC shell. The retrofit involved installing 44 non-linear dampers between the island building and the RC shell. This was due to the significant differences in the fundamental vibration periods. This paper will present the rationale of making a decision on the parameters of the dampers to give the optimum retrofit strategy.
Numerical Analysis of Tension-Type Stress - Concentration Cable and Stress-Dispersed Cable
Authors: Zhao Jie , Liang Ren Wang
Published: August 2014

Applications of stress concentration type cable in engineering are very common, but in some relatively weak rock and soil layer, it does not meet the requirements of bearing capacity. In addition to lessen the anchor cable anchorage length, we choose to use stress-dispersed anchor in many engineering[1]. In order to study the tensile anchorage segment bond distribution, this paper uses FLAC3D through changes in the design of foundation pit supporting anchor cable anchorage segment bond strength of the grouting body, analyzes the cohesive force in theanchorage segment of distribution and the size of the cohesive force peak.
The Simulation Research and Analysis of Transformer with Differential Protection in Shipboard Medium Voltage Based on Matlab
Authors: Shen Bing , Zhang Hong Zhi , Jiang Xin Yi , Xu Guo Shun
Published: August 2014

In order to ensure the safe operation of the ship in the medium-voltage grid, transformer protection is particularly important. Using Matlab/Simulink, this paper established transformer and its differential protection simulation model of the medium-voltage ship. To achieve differential protection function, this paper uses the M-file to program the differential protection S-function. The simulation results indicate that the differential protection models can achieve their protection functions and have better quick-acting and stability.
Thickening Carbon Dioxide by Designing New Block Copolymer
Authors: Meng Si Wei , Zhang Jin , Lu Gui Wu , Li Xiao Tong , Xiao Li Jia , Hou Teng Fei , Chen Peng Feng , Zhang Rong
Published: August 2014

In a previous work researchers found that fluorinated acrylate (PHFDA)/styrene (PSt)/ sulfonated styrene (S) copolymer can enhance the viscosity of carbon dioxide (CO2) by factors greater than 100 at concentrations of 5 wt %. To further improve the efficiency of this copolymer, we apply the dissipative particle dynamics (DPD) method to investigate the link between copolymer molecular structure and the solution rheology. Results show that sulfonated copolymer molecules combine with each other and create self-assembly structures, which greatly thicken liquid CO2. We conclude that we should increase the sulfonation degree on the premise of a reasonable solubility. Using a further dissolving experiment, we finally fix the mole fraction of PHFDA, PSt and S on 60%, 24% and 16%, respectively. We test the viscosity of the improved copolymer with rheometer, results show that it can increase the solution viscosity 180-fold relative to neat CO2 at 334K and 28 MPa with a concentration of 2.5 wt %.
Analysis of Environmental Tobacco Smoke in China
Authors: Qiu Cheng , Chen Hong , Ye Chun Li , Yang Yan Jun , Ye Chang Bing
Published: August 2014

Environmental tobacco smoke (ETS), also known as second-hand smoke (SHS), is a complex mixture of chemicals generated during the burning and smoking of tobacco products. Smoking has become the most important indoor air pollutant source in China in terms of human health. The paper firstly analyzed the health effects of environmental tobacco smoke, the conditions of the environmental tobacco smoke exposure in recent years, and environmental impact of environmental tobacco smoke. The exposure to ETS that has influence on human heath, specially the women and children is the important risk factor. Meantime, the ETS exposure rate in the crowd has risen in recent years, and the public places, workplaces and families that pose the ETS exposure are the main sites. Second-hand smoke severely impact on the indoor air quality, especially it is the most important pollutant source of indoor air PM2.5. The exposure to Environmental Tobacco Smoke (ETS) does severe harm not only to the people’s lives and health, but also to social economic development in China. Finally, the paper put up with some suggestions to control environmental tobacco smoke in China.
Study of Iron-Carbon Micro-Electrolysis Degrading Dyeing Effluent by Appending Transition Metals and Rare Earths
Authors: Kuang Ju Chi
Published: August 2014

The paper aims to explore influence of elements of transition metal (TM) and rare earth (RE) on iron-carbon micro-electrolysis for dyeing effluent degradation. There is evidence that there aren't many reports about it in domestic literature. The paper analysed the morphologies of surfaces of irons and activated carbons and designed the orthogonal experiments. Next was discussion for related influence factors. It deduced the mechanism that TMs and REs assist zero-valent iron (Fe0) catalysing degradation of dyeing effluent. It is based on following explanation. Cations of manganese and cobalt easily penetrate Fe0 lattices, but doesn't Ce4+ because of larger radius. Thus Ce4+ is weaker than Mn2+ and Co2+ for improving Fe0 activity. Furthermore, because the valence electron structure of Mn2+ is more stable than that of Co2+, Mn2+ is more efficient to assist Fe0 degrading dyeing effluent than Co2+. Therefore, the ranking of affecting Fe0 activity from greatest to smallest is Mn2+, Co2+ and Ce4+.
Research on Application of Information Technology in Commercial Bank
Authors: Li Yang
Published: August 2014

During the progress of improvement on scientific technology and national economy level. Chinese financial industry is growing strongly and fast. Facing to large data in network technology and various of uncertain risk factors, firstly the development situation of information technology of commercial bank has been introduced, then the problem in information technology of commercial bank has been analysed. Also we have suggested improvement by using value engineering. Finally finally we have made the conclusion.
Effect of Adding Rare Earths into Iron-Carbon Micro Electrolysis Process on Degradation of Dyeing Wastewater
Authors: Kuang Ju Chi
Published: August 2014

Nowadays the traditional dyeing wastewater treatments based on flocculation-biochemical technology become more difficult than before. The study in this paper aim was it to probe how adding rare earths (REs) into iron-carbon micro-electrolysis process to advance dyeing wastewater degradation. Firstly, the principle was discussed. Then the experimental methods were stated and it followed by exploring effect of iron powder size on the dye decolorization rate. Next were design of the micro electrolysis orthogonal experiments and discussion of influences of related factors on waste water treatment. The experimental results show that besides common iron powder particle size and the processing time, the factors that have great influence on dyeing wastewater treatment are Ce4+, pH, La3+ and iron/carbon ratio. The sequence of factors influence on wastewater micro-electrolysis treatment is Ce4+ > pH > La3+ > iron/carbon ratio. When pH is 6, COD removal rate arrives at maximum 89%, however when the pH is in the case of too high or too low, the effect of sewage degradation is not good.
Applied-Information Technology in Barrier-Free Service of University Library
Authors: Chen Qing
Published: August 2014

It’s the library’s duty to offer barrier-free service for the disabled. And applied-information technology is applied into the barrier-free service, which may be found helpful to promote the disabled readers’ initiatives and help them seek for information conveniently in library. There are some measures university library can take to offer barrier-free service with applied-information technology such as opening more free computer-training classes for disabled readers to improve their information skills, offering aural OPAC service, posting the copies of library resources by E-mail and providing assistive technology and equipment related to information service. In addition to these measures, some activities like enriching the spiritual and cultural life of the disabled readers and increasing the communication between able-bodied people and the disabled.
High Loss Improved Broadcasting Retransmission Approach Based on Network Coding
Authors: Liu Hang , Li Jie , Chen Guang
Published: August 2014

When the packet loss rate is high in the wireless networks, the performance of network coding wireless broadcasting retransmission scheme becomes worse. Aiming at the problem of network coding wireless broadcasting retransmission scheme, high loss improved broadcasting retransmission approach based on network coding is proposed. Simulation results demonstrate that compared with the traditional wireless broadcasting retransmission scheme and the network coding wireless broadcasting retransmission scheme, high loss improved broadcasting retransmission approach based on network coding can ensure the ensure the reliability and effectiveness of the transmission in wireless broadcasting network.
On the Performance Analysis of Self-Cooperative Network Coding in Wireless Communications
Authors: Chen Guang , Li Jie , Liu Hang
Published: August 2014

On the condition that there are no available cooperative nodes, this paper proposes self-cooperative network coding. Self-cooperative network coding is proposed. The main idea is that the sender makes use of time diversity technologies to offer cooperative information by itself. One advantage of self-cooperative network coding is that with the increase of the number of packets, successful transmission rate become high. Consequently, self-cooperative network coding provides a solution for reliable transmission of the large file in wireless communications.
Preparation and Properties of Polysiloxane Modified Epoxy Encapsulating Material
Authors: Zhou Hao Ran , Li Hong Xia , Yu Wei Miao
Published: August 2014

In order to solve the poor toughness, fatigue durability and shock resistance defects of the cured epoxy resin, in this paper, the epoxy resin was modified via dichlorodiphenyl silane as a modifier. Then the electronic packaging materials were prepared using the modified EP as matrix, a nitrile rubber (CTBN) as a toughening agent, methyl nadic anhydride (MNA) as a curing agent, and 2, 4, 6 - tris (dimethyl amino methyl) phenol as a curing accelerator. The effects of raw materials ratio on the cured products’ properties was investigated. FT-IR, TG-DTG and DMA were used to test and characterize the product. And we determined the best raw materials ratio and reaction conditions. Finally epoxy encapsulating materials which have excellent mechanical properties, electrical properties were prepared.
Research on Material Thickness and Material Properties with Application of Sensors
Authors: Xu Zhi Qiang
Published: August 2014

With the wide application of thin film technology and optoelectronic devices, optical films have been widely used in the development and production of weapons and special devices for basic research. Faced with constantly updated status quo and development of optical thin film precision measurement of various parameters on a higher requirements, the film thickness is one of the key parameters in film design and manufacturing process. Particularly with the rapid development of nanoscale thin-film technology, the film thickness becomes a hot issue in the research field. For solid film thickness, the main measuring means are screw micrometer, microscopy, interferometry and polarization. Conventional Michelson interferometer can measure thin film thickness which is transparent and known, and the devices with sensors performance better.
Dithiolate Mixed with Diimine and it's Metal Effects on Sensors
Authors: Jia Yong Hui , Xu Chao
Published: August 2014

Determination of the two Maleinitriledithiolate • phenanthroline-5 ,6-dione Lynn mixed copper (II), zinc (II) complexes MLL' (L=mnty, 1,2 twelve dicyanoethylene-1,2 - thiol ion L '= phen-5, 6-dione, l, 10 - phenanthroline-5 ,6-one o) amine in dimethy-l phthalate (DMF), acetone (Acet.) and chloroform (HCli) electronic absorption spectra corresponding to transitions studied the relationship between the absorption bands in the electronic spectra associated molecular orbital energy level diagram to explore their photographic oxidation characteristics in DMF.
Special Strength Curve of Ultrasonic-Rebound Combined Method for Concrete of Oujiang River Bridge
Authors: Liu Han Yong , Zhao Shang Chuan
Published: August 2014

In order to develop the non-destructive test technology of concrete strength for Oujiang River Bridge, a series of experiments were carried out to investigate the influences of mixing quantities and mixing ways (single-mixed and double-mixed) of fly ash and ground slag on the relationship of concrete rebound values and represent value of ultrasonic velocity with compressive strength. Then, the special strength curves of ultrasonic-rebound combined method for concrete of Oujiang River Bridge were established based on the test results with ZC3-A rebound instrument and H450 rebound instrument, respectively. The experimental results indicate that mixing quantities and mixing ways of fly ash and ground slag have no influences on the relationship of concrete rebound values and represent value of ultrasonic velocity with compressive strength when the content of fly ash is less than 35% and the content of ground slag is less than 50%. The strength curve equation of ultrasonic-rebound combined method with ZC3-A rebound instrument can be used to carry out non-destructive test to the concrete under C80. Therefore, it is unnecessary to establish the special strength curves of ultrasonic-rebound combined method with H450 rebound instrument.
Analysis on Relationship with Pedestrian Network through Space Syntax - Paldalmoon Market in Suwon
Authors: Son Jung Ho , Park Ho Young , Kim Do Bum
Published: August 2014

The Space syntax methodology is a theory that proposes criticality of each space quantitatively by analyzing space structure. The space structure is analyzed by computer program. In this study, the most appropriate analysis for irregular pedestrian network was considered among the various analysis methods in space syntax. The pedestrian network was analyzed using axial map and Segment map in and around Paldalmoon, Suwon. As a result of the analysis, the segment map showed higher numeric value with 0.79 than axial map with 0.61; however, the global integration in axial map showed the highest result value in the relationship with pedestrian network.
Experimental Hydro- and Aerodynamics Research on Arrow
Authors: Long Xiao An
Published: August 2014

This study aims to investigate the hydro- and aerodynamic characteristics of arrows as understood within the field of archery and to contribute to theoretical knowledge, upon which archery techniques are based. The water tunnel and wind tunnel are used to test different arrows consisting of four famous brands.The results showed that when the angles of attack from -6°to 6°, the arrow remained in the state of attached flow. Arrows that had spiral plastic fletches demonstrated better states of flow than arrows with straight fletches. Within the range of the experimental angles of attack, the coefficients of lift increased, while the coefficients of pitching moment decreased when the angle of attack increased. The arrows showed static stability in the longitudinal direction. Arrow fetches also demonstrated considerable influence on the lift and pitching moment. The rolling of the arrows caused the change of the coefficient of lift. Based on the results, it can be concluded that arrow fetches are the major contributors to the arrows’ flight stability.
Projection Method for Material Selection Problem with Interval Numbers
Authors: Yang Lian Wu
Published: August 2014

Material selection problem is important for the product design, and contains many influence factors. Thus it is actually a multi-attribute decision making (MADM) problems. The aim of this paper is to propose a new decision method based on the projection method for the material selection problem, in which attribute values expressed with interval numbers. An objective determining weights method is proposed according to coefficient of variation method. A practical example is used to illustrate the effectiveness and practicability of the proposed method.
Research on the Optimization Design of Gas-Solid Coupling of Wind Turbine Blades
Authors: Xu Zhi Qiang
Published: August 2014

The effects of high-altitude wind shear of wind speed should be considered, the appropriate number of distribution group should be determined and the distribution of wind speed hybrid model parameters and solving should be loaded onto the blades. When the stress of rotor blade is analyzed, the elastic deformation of the blades and the effects of the vibration of oscillating flow field on reaction of the blades must be considered during the operation. Thus the laws of blade load distribution and the corresponding deformation can be accurately calculated to analyze the interplay between deformation vibration airflow and paddle, to determine the law of deformation of rotor blades, the surface pressure distribution, stress distribution and blade design safety factors. When wind load changes with the wind speed, the adaptive blades are powered by aeroelastic, the law of wielding and flapping of the blade will be studied. The torsion coupling effects of adaptive blade, blade bending ,the law of torsional deformation variation of the angle of attack and the impact on aeroelastic blades structural strength will be explored. The results of this study design will be optimized as the power factor, improving the stability of the design of wind turbine power output, reducing material consumption blades absorb vibration and reducing wind load maneuvering to avoid blade stall achieve pitch control. Thus it provides a theoretical basis for optimal design of strength and stiffness of the elongated paddles.
Research on Electromagnetic Energy Absorbed by Human Body in the Vicinity of High-Voltage Transmission Line
Authors: Wang Ao , Chen Zi Wei , Guan Rui , Zhu Yu Hui , Zhao Lian Qing
Published: August 2014

When the building is located near high-voltage transmission lines, the people working or living in the building will absorb a certain amount of electromagnetic field energy. When the limit is exceeded, it will have an impact on human health. We studied people in surrounding buildings of 500kV EHV AC transmission lines and 1000kV AC UHV transmission lines and discussed electromagnetic field energy they absorbed.
Applied Technology in Road Identification Study of Off-Road Vehicle
Authors: Han Yu , Meng Guang Wei , Huang Chao Sheng , Hao Yan
Published: August 2014

To study the problem of the road identification of the off-road vehicle, a road identification method based on on-line monitoring of the vehicle running state was put forward. The time series data of the suspension displacement and the sprung mass were monitored. The spatial power spectrum density was calculated, aiming at automatically identifying the road roughness. The vehicle speed and the longitudinal vibration acceleration were collected, aiming at identifying the terrain slope. The state of the vehicle and engine was recorded. The rolling resistance coefficient was computed, based on the output torque of the engine. Comparing this coefficient with the threshold of the soft road surface, the soft road surface could be identified. On the basis of the identification result of the road feature, the vehicle running mode can be adjusted, improving the maneuverability of the off-road vehicle.
Research on Information Process with a Computational Approach to Some Odd-Graceful Trees
Authors: Xie Jian Min , Yao Bing , Yao Ming , Chen Xiang En
Published: August 2014

Graph labeling theory has important applications in coding theory, communication networks, logistics and other aspects. In Operations Research or Systems Engineering Theory and Methods, one very often use graph colorings/labellings to divide large systems into subsystems. One can use colorings/labellings to distinguish vertices and edges between vertices in order to find fast algorithms to imitate some effective transmissions and communications in information networks. In this paper we present a computational approach to the odd-graceful labelings for some olive trees.
Application of Computer and Information Technology in the Dormitory Management
Authors: Wang Xin Jia , Li Qing Jiang
Published: August 2014

The dormitory management information system is designed based on the basic principle of MIS and database implementation techniques. The design mainly uses the C/S model, and the development tools are Delphi and the Microsoft Access. From the system demand analysis to the function module design and the database design, to system interface, the whole process of construction of dormitory management information system is introduces in detail.
Research on Speech Recognition System with Speaker Identification Based on the Cloud Server
Authors: Liu Xue Yan , Yuan Bao Ling
Published: August 2014

The speech recognition system is not real-time, a speak identification method based on the cloud server is proposed to solve this problem. Firstly, the MFCC frequency cepstrum coefficient and the first order differential coefficient are extracted from the speech feature vector sequence to form 32 dimensional. And then the 32 dimensional speech feature vector is sent to the cloud server, the training speaker model and identification are done in the cloud server. Finally, the identification result is sent to the client.
Polyaniline Composites Using Three Different Acid as a Secondary Dopant: Preparation and Properties
Authors: Qi Hong Hua , Chen Jiao , Chen Na Li , Feng Hui Xia , Qiu Jian Hui
Published: August 2014

In this paper, the preparation of PANI was investigated via in secondary doping in-situ chemical oxidation polymerization. We use NH2SO3H as dopant, and HP3O4, H2SO4or HCl as secondary dopant, respectively. The influencing of products conductivity was discussed about difference secondary dopant with changing concentration. The synthesized polymer composites are characterized by Fourier Transform Infrared Spectroscopy (FTIR) and four probe conductivity apparatus. The results show that in redoping process, the conductivity of PANI was 3.1746 S/cm when the concentration of HCl was 1.0 mol/L. Meanwhile, the thermal stability of PANI prepared with HP3O4or H2SO4as secondary dopant was better than HCl as secondary dopant.
Applied Technology in a Developed Simulation Model of Pedestrian Crowd Dynamics during Emergency Evacuation
Authors: Li Ming Hua , Yuan Zhen Zhou , Xu Yan
Published: August 2014

In this paper, we present a developed cellular automata model to simulate the pedestrians’ crowd behaviors in congested public facility during emergency evacuation. Pedestrian perception and choice behavior considering the queue time of door changing were investigated in pedestrian decision and evacuation time. The model was used to mimic the emergency evacuation with a range of densities for the study of relationship between individual behavior and evacuation time. The results indicate that pedestrian is sensitively for the queue time and prefer to change the exit if the evacuation time perceived by the pedestrian is large then other exit during the escape process. The model is useful to study the pedestrian’s behavior during the emergency evacuation, and helpful for safe layout of the public facilities.
Applied AHP Technology and Information Technology in Evaluation for Teaching Quality of University
Authors: Guan Yu Mei
Published: August 2014

With the constant development of information technology, information into education teaching quality evaluation has injected new vitality.The evaluation for teaching quality of university is to add the power and energy of teaching. Evaluation for teaching quality of university based on AHP is proposed in the paper. Evaluation scale among evaluation indexes is given, and the weights of evaluation indexes are obtained. The absolute weights of the second-degree indexes are gained. The economics teacher is applied to evaluate the effectiveness of AHP technology. The experimental results show the evaluation for teaching quality of university based on AHP has excellent results.
Design and Application of Wireless Sensor Network System with GPRS Technology
Authors: Tan Qing , Qiao Jun Ling
Published: August 2014

Wireless sensor network through a set of connected by wireless sensor node sensing, collecting and processing information, has the characteristics of low cost, flexibility. The gateway device is also equipped with the GPRS communication unit, the GPRS communication unit is mainly composed of GM862 module. This paper uses GPRS technology to transmit physiological data, can not consider the establishment of wireless sensor network. The paper proposes design and application of the wireless sensor network system based on GPRS Technology.
Research on Information Technology for Consultation Service System with Design and Practice for National Fitness Management
Authors: Wang Ke Fei , Zhang Li
Published: August 2014

According to national fitness knowledge and theory, combine module theory and information technology designed national fitness management and consultation service system. This paper makes explanation on design ideas, technology crucial, module and function design, working example of the system. This system provide Internet platform for all the sports participants scientific body training. So combine information technology the system has important practice and promotion values.
Applied-Information System in Accounting Data Security via Cloud Computing Systems
Authors: He Fan
Published: August 2014

This paper presents a static data authentication protection, SaaS dynamic data protection and trusted cloud computing platform for building and other programs designed by the existing trusted cloud computing platform software and hardware transformation and security enhancements, build a data security for cloud computing protection prototype system to verify the practicality and feasibility of the proposed text view is reasonable, and the theory program.
Structure of Smart Materials and its Application in Construction Industry
Authors: Jia Yong Hui , Heng Jia Xiao
Published: August 2014

In this paper, the piezoelectric ceramic crisp, poor water resistance, resistance to external load capability is not strong lack of self-designed package more perfect a new type of "smart piezoelectric aggregate", to better address the PZT film resist unfavorable load , vulnerability and durability issues and other aspects; and further superior characteristics of piezoelectric smart sensing and drive integration of theoretical analysis, modeling, numerical calculations, mechanical analysis and experimental research; on this basis, based on the pressure and Experimental Research aggregate electric smart sensor / driver structural health monitoring and damage detection algorithm, the theoretical basis for the realization of the transition from the pilot study engineering applications to provide the experimental basis and technical support.
Study on Dehazing Technology of Digital Image
Authors: Cao Xin , Zhang Ya Na , Han Li
Published: August 2014

The case of fog and haze get degraded images, its physical mechanism and atmospheric attenuation model were studied and analyzed, and the current recovery is better in the field of algorithms. This paper first present a filter-based optimization method based on the image edge information structure information and designs a special filter; then estimate the atmospheric scattering of light transmission rate, the design of a rapid removal of a single image haze algorithm, to achieve a faster and better recovery image haze.
Research on Image Technology with Application of K-Means Based on Genetic Simulated Annealing Algorithm in CT Image Segmentation
Authors: Zhu Ling Li , Wang Lan
Published: August 2014

Aiming at the characteristic of medical images, this paper presents the improved genetic simulated annealing algorithm with K-means clustering analysis and applies in medical CT image segmentation. This improved genetic simulated annealing algorithm can be used to globally optimize k-means image segmentation functions to solve the locality and the sensitiveness of the initial condition. It can automatically adjust the parameters of genetic algorithm according to the fitness values of individuals and the decentralizing degree of individuals of the population and keep the variety of population for rapidly converging, and it can effectively avoid appearing precocity and plunging into local optimum. The example shows that the method is feasible, and better segmentation results have got to satisfy the request for 3D reconstruction, compared with k-means image segmentation and genetic algorithm based image segmentation.
The Study on Mechanical Properties of POSS Hybrid PVA Hydrogels
Authors: Chen Yi , Yang Jun Hong , Liu Wen Yong , Zeng Guang Sheng
Published: August 2014

A novel POSS hybrid nanocomposite hydrogels were synthesized by introducing water-soluble Oa-POSS into the PVA hydrogels. The mechanical properties are obviously dependent on the composition of gels. With the increase of Oa-POSS, the tensile strength and modulus increases significantly while the elongation break decreases. The gels exhibit higher compression strength than pure PVA hydrogels. This phenomenon is attributed to the effective entanglement of polymer chains around nanoparticles and enhanced interaction between PVA chains.
Applied Technology and Data Processing in Plight and Breakthrough of Academic Research for Librarian
Authors: Chen Qing
Published: August 2014

University library not only can offer service for the work of teaching and research in university but also is a very important part of research community in university.However, most of libraries may own advanced applied technology and network while librarians may know little about the retrieval skills, digital library and database. Therefore, it is one of necessary tasks to improve the quality and ability of librarians so that they can improve their own ability of academic research and offer more professional service for faculties and students in university.
Algorithm of Video on Demand Scheduling by Protocol of Video on Demand and Multimedia Encoding Technology
Authors: Kuang Guo Fang , Li Xiao Hui , Li Chao
Published: August 2014

This paper first analyzes the protocol used in video on demand system function, using method. Then this paper introduces the coding technology, according to the characteristics of streaming media network transmission, points out the case for network transmission code. This paper introduces the influence of patching algorithm, greedy algorithm, elegant patch algorithm and cycle algorithm on streaming media height algorithm. The paper presents research on algorithm of video on demand scheduling by protocol of video on demand and multimedia encoding technology.
The Swelling Behavior of Water-Soluble POSS Hybrid PNIPA Nanocomposite Hydrogels
Authors: Chen Yi , Yang Jun Hong , Liu Wen Yong , Zeng Guang Sheng
Published: August 2014

The nanosized water-soluble Oa-POSS particles were added into the PNIPA hydrogels by in situ radical polymerization as a reinforce agent. The swelling behavior including swelling ratio and swelling/deswelling rate was determined by the composition of gels. With the increase of Oa-POSS, the swelling ratio decreases slightly, while the swelling rate and deswelling rate increases significantly, which is conducive to the application of this kind of gels.
Technology Study on the Perception of Stereopsis in Fovea Field
Authors: Wu Yan , Li Qi , Han Xiang Bo , Shen Hui Ling
Published: August 2014

Random-dot stereograms were used as stimuli to investigate the perception of stereopsis in fovea field. The response of every subject was recorded in different positions in the fovea field: upper, lower, left, right field and with different eccentricities of 1.39º, 1.93º, 2.48º, 3.02º, 3.57º. The results showed that reaction times increased with increasing eccentricities wherever the disparity zone was presented relative to the fixation point. No significant differences were found between reaction times to the upper and lower visual fields. And there were no significant differences between left and right visual field. But there were marked superiorities for reaction times between upper and right field at all eccentricities.
Research on the Monitoring of Internet with Public Opinions Based on Micro-Blog in Universities
Authors: Gan Li Xin , Tu Wei
Published: August 2014

It is so important to monitor Internet public opinions based on micro-blog in universities that universities are able to grasp public opinion trends comprehensively and to make correct guidance of public opinion timely. In this paper, we propose a monitoring platform of micro-blog public opinions via combining artificial participation with computer technologies. The technologies of search engine and date mining are applied to this platform including topic detection and tracking, hotspot detection and emotional tendency analysis to mine and monitor micro-blog public opinion automatically. This platform is able to make full use of the advantages of the professional group of micro-blog public opinion monitoring to increase the effectiveness and efficiency of monitoring and guidance work of micro-blog Internet public opinions in universities.
The Teaching Web-Site Building of Technician Certificate for Electronic Elements Soldering and Taking Apart
Authors: Lin Wen Bin
Published: August 2014

This paper presents an E-learning web site of technician certificate setting up. With the rapid development of education informationization in Taiwan and the wide spread of specialization of teachers, educational technology ability is becoming a basic requirement. In this case, the traditional educational technology training model can no longer meet the demand for professional development of teachers. To increase the on-line learning interactivities and real time feedbacks, Hyper Text Markup Language (HTML) could be used to implement web pages. E-learning web site can combine multimedia technology and allow users to review and practice the material at any place. Consequently, we build an E-learning web site of technician certificate for electronic elements soldering and taking apart. The proposed web site not only can provide the students to enhance their abilities by using the tool web site as a remedial teaching aid after school, but also can encourage them to have more interest in learning the questions’ answer for certificate exam.
Estimate Volumes of Convex Polytopes: A New Method Based on Particle Swarm Optimization
Authors: Xu Sheng , Cai Dun Bo
Published: August 2014

The volume of a convex polytope is important for many applications, and generally #P-hard to compute. In many scenarios, an approximate value of the volume is sufficed to utilize. Existing methods for estimating the volumes were mostly based on the Monte Carlo algorithm or its variants, which required a near uniform sampling process with a large number of sample points. In this paper, we propose a new method to estimate the volumes of convex polytopes that needs relative less sample points. Our method firstly searches for fringe points that are inside and near the border of a convex polytope, by a new way of utilizing the particle swarm optimization (PSO) technique. Then, the set of fringe points is input to a tool called Qhull whose output value serves as an estimate of the real volume. Experimental results show that our method is efficient and gives result with high accuracy for many instances of 10-dimension and beyond.
Research on the Ecological Water Demand Based on Physical Habitat Simulation Model
Authors: Chen Jun Xian , Qiao Rui Zhi , Li Wen Hua , Wen Xin
Published: August 2014

A basin in Southwest China is selected as an example for ecological water demand calculation to obtain the ecological flow required for the survival of typical creatures within the watershed by solving the physical habitat model. The implementation of ecological operation can better meet the two fish suitable ecological needs for each life cycle, and is of great significance for fish conservation. Results indicate that the implementation of ecological operation has tremendous ecological environmental benefits and great significance for the protection of aquatic organisms.
The Test Research and Data Comparison of BI by Automation Implementation
Authors: Xie Xiao Yun , Wu Jun Hui , Zhou Quan , Chen Jie , Si Hui Ping , Lin Kai Yan
Published: August 2014

It is important to explore the data type of test content and the comparative data by the realization of automation in data migration process based on the basic idea of ETL technology. It is in order to work efficiently than complete data, improve work efficiency and the coverage of test data which free the human from a single repetitive labor in the business intelligence project. Quality data is an important prerequisite for the success of on-line system, and also a powerful guarantee stable operation of the system in the future. The design of the comparative data in automated implementation is provide an important guarantee for the normal operation of the system.
The Mould Flux Crystallization Properties Designing of High Carbon Steel for Thin Slab Continuous Casting
Authors: Li Hui Rong , Sun Li Gen , Ai Li Qun
Published: August 2014

Crystallization temperature is very important for the high carbon steel for thin slab continuous casting, in this research the orthogonal experiment has been carried out, and the results showed that: the effect for the flux crystallization temperature form strong to weak is: F>Na2O>R>BaO>MgO. In the experiment range, with the R, Na2O, MgO and F- content increasing, the flux crystallization temperature would be higher, but for the complicated infect of the Na2O and F-, there are some flucuations for the flux crystallization temperature, but for the BaO content increasing, the crystallization temperature of the flux would be decreasing slowly.