bluuebunny/crossref_metadata_2025 huggingface dataset:
Dynamic Anti-Plane Characteristics at Outer Tip of an Interfacial Crack near a Circular Cavity in Piezoelectric Bi-Materials
Authors: Song Tian Shu , Hassan Ahmed
Published: October 2014

A theoretical analysis is followed to calculate the dynamic stress intensity factors (DSIFs) in transversely isotropic piezoelectric bi-materials, due to existence of a permeable interfacial crack, near the edge of a circular cavity. The model is subjected to dynamic incident anti-plane shearing (SH-wave) and the formulation based on Green's function method. Conjunction and crack-simulation techniques are applied to obtain DSIFs at the crack’s outer tip. Calculations are prepared based on FORTRAN language program. A comparison is accomplished between the present model and another model with a crack emerging from the cavity edge to calibrate the program. Calculating results showed the influences of the physical parameters, the structural geometry and the wave frequencies on the dimensionless DSIFs and how those affected the efficiency of piezoelectric devices and materials.
Conserved Quantities of Lagrange Equation of a Growing Elastic Rod Dynamics
Authors: Qu Jia Le , Xue Yun , Qian Xi Ying
Published: October 2014

Conservedquantities of a growing elastic roddynamics are studied on the basis of Lagrange equation. Several of conserved quantities and their condition of existencearederived, which expanded the concept of conversation from the time to the space, i.e. arc coordinate.Lagrange equation is applied to analyzed energy integral and cyclic integral. First integrals are of practical significance in both theoretical and numerical analysis for a growing elastic rod dynamics.
Enhanced Photocatalytic Activity of α-Fe2O3 Prepared with the Assistance of Ionic Liquid
Authors: Lu Yan
Published: October 2014

In this paper, α-Fe2O3 photocatalyst with high photocatalytic activity (IL-α-Fe2O3) was fabricated via hydrothermal routine using 1-ethyl-3- methylimidazolium dihydrophosphate ([EMIm]H2PO4). The specific surface area, structure, the photo-induced charge separation rate were characterized by Brunauer-Emmett-Teller (BET) measurements, X-ray diffraction (XRD), and surface photovoltage spectroscopy (SPS), respectively. The results show that adding ([EMIm]H2PO4 into the synthetic system alters the specific surface parameters and photo-induced charge separation rate. The photocatalytic activity for decolorization of methyl orange (MO) solution was investigated. The results show that the photocatalytic activity of IL-α-Fe2O3 is more than 2.5 times that of the reference α-Fe2O3 and the underlying mechanisms are discussed.
Investigation on Dyeing Performances of the Modified Cotton Fabric with Ionic Liquid as Modifier
Authors: Song Ming Shu , Lin Jie , Cheng De Hong , Lu Sheng , Hao Xu , Lu Yan Hua
Published: October 2014

in this paper the dyeing performances of the modified cotton fabric with ionic liquid 1-butyl-3-methylimizolium chloride as modifier was investigated. The effect of pH value, dosage of ionic liquid, modified time, modified temperature on the dyeing performances of the modified cotton fabric was determined. The obtained results indicated that after the cotton fabric was modified by ionic liquid under the alkaline the dyeing performances of the modified cotton fabric was obviously enhanced. The K/S value of the modified cotton fabric was about 1.42 more than that of the untreated cotton fabric, the soaping fastness, rubbing fastness and breaking strength also were obviously enhanced.
Link Parameters Optimization Design of Quadruped-Imitating Walking Mechanism and its Simulation Analysis
Authors: Wang Yong Ming , Sun Ying Qiu
Published: October 2014

According to the principle of double-half-revolution mechanism, a new kind of quadruped-imitating walking mechanism was designed. In order to simplify the structure of the walking mechanism, each links of the mechanism is driven directly by steering gear.Considering non-interference condition of each links and undulation requirement during movement, the constraint functions were established. In order to ensure the movement feasibility and reduce the undulation of the walking mechanism, optimization design for the size parameters of each links were completed by using Matlab optimization tool. The virtual prototype model of quadruped-imitating walking mechanism was set up in SolidWorks software, and the rationality of the optimization design was verified through the simulation analysis.
Research of the Ejection Angle of Guiding Device in Vertical Shaft Impact Crusher Rotor
Authors: Li Shi Jian , Zhao Fang , Cai Yuan Bo , Zhao Na , Chen Xian Xin
Published: October 2014

In this paper, a new rotor with two impact in the vertical shaft impact crusher is analyzed, an effect of the angle at the guide device thrown materials on the velocity that material reach the impact plate and rebound to a anvil in the crushing chamber are discussed. three mass ejection Angle are simulated by discrete element software EDEM, and the result shows that effect of two impact of new rotor on acceleration material is best when ejection angle is 25 °.
Simulation and Analysis of Formula Racing Car’s Diffuser Based on CFD Technology
Authors: Kang Ning , Yang Yang
Published: October 2014

It is vital to reduce lift generated by a racing car while traveling with high speed for the sake of overall performance and stability. Simplified formula student racing car models with seven diffuser angles and without diffuser were simulated based on CFD technology. Aerodynamic forces and corresponding coefficients were achieved for all eight models. The calculated results show that the lift generated by the car in the high speed can be reduced by a diffuser effectively. The aerodynamic characteristics of a racing car will be greatly improved by adding a rational designed diffuser, which may cut down lift dramatically with only little drag produced. This paper provides theoretically support for improving racing car aerodynamic characteristics.
The Working Principle of Dual-Planetary Ball Mill and the Establishment of the Discrete Element Mode
Authors: Yang Jie , Wei Jing Tao
Published: October 2014

This paper describes the mechanism of a small dual-planetary ball mill which is used in the laboratory, and using the discrete element software PFC3D to establish corresponding model of the milling tank in dual-planetary ball mill and the ball medium in tank. The big wheel under different rotational speed affects the average contact stress and the different filling rate of 8 mm ball medium affects the average stress, which are applied to simulation research, and we draw the corresponding conclusion.
Out-of-Plane Stability Analysis of Combined Boom System with Main Jib and Fly Jib
Authors: Lan Peng , Wang Teng Fei , Lu Nian Li
Published: October 2014

The objective of this study is to develop an analytical method for the out-of-plane stability of combined boom system with main jib and fly jib. Boundary conditions and deformation compatibility equations are introduced to get the analytical expression of out-of-plane buckling characteristic equation by establishing the bending and torsional deformation differential equations of jibs and the strut under the instability critical state. The analytical results obtained agree well with the finite element method (FEM) results. The influence of the dip angle between the main jib and the fly jib on the stability of the boom system is discussed. And the comparison between the combined boom system and the bending beam-column in the stable bearing capacity is made. It is shown that the upwards-bend boom system is much stronger than the downwards-bend boom system. There exists a certain dip angel between the main jib and the fly jib that makes the stable bearing capacity biggest. By comparing the stable bearing capacity of boom system with that of the bending beam-column, it is obtained that the flexible tension system will significantly improve the stable bearing capacity of the bending beam-column.
FEM Analysis of Stress Intensity Factors of Crack Tip
Authors: Liu Jian Hui , Wang Sheng Nan , Lu Ya Bing , Huang Zong Zheng
Published: October 2014

Finite element method is used to analysis two-dimensional compact tension specimens which is made of 304 stainless steel and calculate stress intensity factors by J-integral. The effects of loading magnitude and crack length on stress intensity factors are analyzed. Meanwhile the errors between finite element method and empirical formula are considered. The results calculated by the finite element method and the results obtained with the empirical formula have a small difference and the error locates the allowable range. The results show that the stress intensity factors K1and loading amplitude have a linear relationship and the relationship between stress intensity factors K1and crack length is non-linear. The rate of crack extension would accelerate when the crack length increase.
Research on Computational Fluid Dynamics with Effect of Grid Quality on the Accuracy of Simulated Results of Two Dimensional Low-Speed Parallel Flow
Authors: Kang Ning , Cao Yuan
Published: October 2014

In the field of computational fluid dynamics, grid generation costs most of work. The accuracy and reliability of the simulated results depend directly on grid quality. The two dimensional parallel flow with low speed was used to study the effect of grid quality on simulated results. Several conclusions are obtained. The computational error decreases with the increase of domain size in flow direction. Too many grids in flow direction will lead to bigger round-off error, while too few grids will make it harder to catch the correct flow. The increase of grid quantity in the direction perpendicular to flow direction will decrease the computational error, but the effect is not obvious. Increasing the grid quantity in the area near the wall will decrease the computational error.
Out-of-Plane Stability Analysis for Crane Jib with Single Cable Considering Lateral Flexibility of the Cable Fixed Joint
Authors: Lan Peng , Wang Teng Fei , Lu Nian Li
Published: October 2014

The out-of-plane stability of crane jib is studied considering the lateral flexibility of the fixed joint. The analytical expression of the out-of-plane buckling characteristic equation for the crane jib with single cable is obtained by establishing the bending deflection differential equation of jib under the instability critical state with the method of differential equation. The equilibrium equation of the fixed point in the lateral direction is introduced to solve the differential equation besides the boundary conditions. The analytical results obtained agree very well with the finite element method (FEM) results. To consider the lateral flexibility of the cable fixed joint, a dimensionless stiffness coefficient measuring the lateral constraint was introduced to derive the out-of-plane buckling characteristic equation. The degeneration forms of the characteristic equation under the limit cases of zero lateral stiffness, infinite lateral stiffness are further discussed. And the influence of the lateral stiffness of fixed joint on the stability of jib is investigated. It is shown that the increase of the lateral stiffness will significantly improve the buckling load of the crane jib especially when the lateral stiffness is very small.
Research on Kinetics of the Vehicle Skidding while Turning
Authors: Ni Ming
Published: October 2014

The road traffic accident is a social issue involving thousands of families and everyone is concerned about it. When people are at work, travel, or visit relatives and friends, they hope to keep secure. However, road accidents sometimes might occur. The experienced motorists know that they mustn’t drive fast when they turn in the corners; especially in the rainy slippery situations, road accidents might occur. In this paper, the car skidding dynamics will be studied.
Improved Relative Ratio Method for Robot Selection
Authors: Yuan Shao Liang
Published: October 2014

The selection of a desirable robot is an important concern for the manufacturing firm. The selection process needs to consider few critical selection attributes and then given the ranking result from a number of candidate robots. Then the robot selection problem is actually a multi-attribute decision making problem. This paper will propose a new robot selection method based on the concept of relative ratio method. A real robot selection case is used to demonstrate that the proposed method is effectiveness and feasibility.
Research on a New Robot Test System Design and Implementation
Authors: Luo Ji Man , Lin Qiao Zhi , Li Gen Biao
Published: October 2014

The design scheme of 3TPS / TP new robot test system design is described in this article, and Linux-based embedded system as the core is proposed, with displacement and tension sensor detecting robot motion and mechanical performance, the overall program is achieved by an interactive interface functions. The hardware design and software design framework is advanced, not only the high-precision performance of the hardware system is ensured, but also the multi-functional development of software is realized. Finally, experimental test is carried out, the detection of robot to its motion precision and the load characteristic is implemented, the experimental results verify the feasibility of the system solution.
Research on the Conformal Phased-Array Antenna
Authors: Zhao Shuang , Yue Yu Bo
Published: October 2014

The mathematical model of conformal antenna array is the premise and basis of the conformal array antenna signal processing. Based on the analysis of the antenna array, a design method for adjusting the direction of the conformal array antenna is proposed. Through simulation, the pattern of antenna meets the actual needs of the project and it reaches pre design requirements.
Research and Development of the ABS Braking Testing Bench for the Large Bus
Authors: Liu Ying Chun , Zhang Pei Ming , Zhang Wei Chun
Published: October 2014

This article introduces the operating schematic of the ABS. Based on its working characters, an ABS testing bench is introduced. The main parameters of the testing bench are also designed. Its validity and feasibility are proved by modeling and the fem simulative analysis.
Design and Implementation of an Embedded PLC System with Applied-Information Technology
Authors: Shi Xiao Juan
Published: October 2014

To overcome the shortcomings of external PLC (Programmable Logic Controller) and soft PLC being widely employed in switch control of CNC machine tool, an embedded PLC system was developed by integrating AVR single chip ATMEGA169, PC bus technique and dual port RAM. Both hardware circuit and software of the PLC system were designed and implemented. The software of Industrial PC was developed by using ladder-diagram IDE (Integrated Design Environment) based on the platform of Borland C++ Builder. In this environment, it can fulfill edit, compilation and communication function of ladder-diagram file. It also can monitor and diagnose PLC running status. This developed embedded PLC system has the characteristics of compact structure, high communication and reliability. It can effectively satisfy real-time control requirements of CNC machine tool.
The Research on Application of New Technique in Road Quality Detection
Authors: Xiao Yan
Published: October 2014

In order to be able to maintain the safety ,stabilize the operation, and prolong the service life of highway engineering, it is necessary to place particular emphasis on the detection of highway engineering. In view of the current imperfection existed in operation techniques of cutting-ring method and sand replacement method.This paper puts forward to a kind of non-destructive detection method for highway engineering based on transient vibration signals.The author makes a detailed analysis and discussion on the main principle and application of the detection method.
DEA's CCR Model for Evaluation of Urban Infrastructure Investment Efficiency of Shaanxi Province
Authors: Yang Jian Ping , Gao Lei
Published: October 2014

Firstly, this paper uses DEA's CCR model to evaluate the relative efficiency of city infrastructure investment of 10 cities in Shaanxi province during 2008-2013. Then according to the panel data of city infrastructure input and output in 2008-2013, it has carried on the longitudinal comparison to observe the dynamic effect of infrastructure investment efficiency in the time series by using the Malmquist-DEA index method. Results show that the overall city infrastructure investment efficiency of Shaanxi province during the whole is on the rise; while each city development is not balanced, Xi'an development situation is relatively better; although, the Malmquist productivity index of the whole province infrastructure investment is restricted by the technical level, it is still on the rise.
Study on Attenuation of Color of Buildings Material in Cold Regions
Authors: Liu Jie , Zhang Wei Ming
Published: October 2014

With the surface materials of cold region buildings as the research object in this paper, a study on the changes in the color of surface materials in the cases of discoloration, fading and yellowing is made. The changes in the chroma, brightness and hue of visible colors in the case of the use of different building materials are analyzed. The results show: the brightness increases with an increase in the time of exposure, chroma decreases with an increase in time, chromaticness declines fastest and the changes and attenuation of hue are the slowest.
Research on the Drop and Pull Vehicle Dynamic Scheduling with "One Line Two Point" Modes
Authors: Li Tang Kui , Chen Jia Juan
Published: October 2014

In this paper, for the drop and pull vehicles scheduling problem with " One Line Two Point"models which is considered that varieties of constraints, such as trailer number constraints, time window constraints and so on, to establish model of dynamic vehicles scheduling, based on trailer wait for the consignment total time as optimization goals. And method is designed to optimize initial scheduling results by dynamic scheduling by changing of time.
Laboratory Study on the Mechanical Properties of Polypropylene Fiber Concrete Exposed to High Temperatures
Authors: Du Xi , Wang Su Ran , Li Yu Chen , Huang Ji , Zhong Meng Qi , Nie Da Xiang
Published: October 2014

Hydraulic servo testing system was adopted to test the mechanical properties of 144 cubic concrete specimens with different content of polypropylene fiber heated after high temperatures. The mechanical properties of cubic polypropylene fiber concrete were analyzed in this paper with the influence of different fiber contents, target temperature and cooling methods. The results of experiment show that an increase in temperature produces significant changes in concrete mechanical properties. The main properties of polypropylene fiber concrete are similar to normal concrete that tend to decrease while the temperature increases. At the same temperature, compressive strength and Young’s modulus of concrete specimens decrease with growing fiber content.
Treatment of High Fluorine Water by Zeolite
Authors: Cao Meng Zhu
Published: October 2014

This paper describes the structural characteristics of zeolite; studies the factors influencing the defluorining capacity of activated zeolite, such as fluorine concentration, pH value, absorption time of the water examples, and further verifies the technical practicability of the application of activated zeolite in defluorining of drinking water. The results indicated at suitable condition of regeneration the adsorption capacity of zeolite was steady, it can be used repeatedly.
Applied-Information Technology in Promoting Balanced Development of Urban and Rural Educational Resources
Authors: Liang Wei Yan
Published: October 2014

Based on analyzing the existing problems of current education resource balancing urban and rural development , this paper discusses the effective measures to promote the balanced development of education resources through the use of information technology.
Applied-Information Technology in Viewing, Listening and Speaking Teaching in Environment of Multimedia Network
Authors: Fan Yan Ping
Published: October 2014

English learning is a process of cognition and viewing, listening and speaking teaching is a more practical leaning activity. Multimedia network provides viewing, listening and speaking teaching with an ideal cognitive tool and rich teaching resources. The integration, digitalization andnetworking of online teaching makes the teaching more interactive and caters greatly to viewing, listening and speaking teaching. Thus the construction of the teaching mode—individualized teaching mode, collaborative teaching mode and interactive teaching mode, is essential to viewing, listening and speaking teaching in multimedia network, which requires the change of teacher’s teaching ideas and the construction of the textbooks and the assessments.
Research on the Application of Big Data in the Environmental Decision-Making of the Government
Authors: Zhu Yan Ju
Published: October 2014

The article mainly researches on the application of big data in the environment decision-making of the government. Through the integration of the technology of Internet, video compression, computer processing, we pose the model of the government environmental data platform. The platform includes the environmental data acquisition platform, the environmental decision-making platform and the environmental management platform.
Gradient-Mapping-Based Method for Video Enhancement
Authors: Xiao He
Published: October 2014

In order to improve the visual effect of nighttime videos, an effective video enhancement method based on gradient mapping is proposed. The proposed method firstly is to change color space from RGB to HSI, secondly the horizontal gradient and vertical gradient components of frames are calculated in I component. Then frame’s gradient is enhanced by the proposed global mapping method. Meanwhile, saturation S component is enhanced to reduce the color distortion. Finally, color video frames are reconstructed. Experimental results show that the proposed method can obtain more appealing perceptual quality than the state-of-the-art algorithms.
Comparative Performance Analysis of Flat and Hierarchical Routing in Wireless Sensor Network
Authors: Tan Qing , Yue Xiao Jing
Published: October 2014

Wireless sensor network is composed of a set of sensors in a wireless network of self-organized. Research on topological structure of wireless sensor network is focused in two directions, namely plane topology structure and hierarchical topology structure. This paper gives a detailed analysis of wireless sensor networks in the flat routing protocols and hierarchical routing protocols, and compares the advantages and disadvantages of the performance of two kinds of protocol by simulation experiment.
Applied-Information Technology for Paging Frame Page in Scientific Research Management System
Authors: Zhu Yu
Published: October 2014

Tabbed browsing data is very common in the web application. Build a tabbed browsing page reusable framework classes can greatly optimize the program structure, saving development time. In this paper, the reusable model of paging framework is designed; designation and implementation of the framework are through vb.net language. Provide efficient and feasible solutions to deal with common data tabbed browsing web.
Technology of Data Conversion and Reconstruction for Complex Surface Based on Non-Contact Measurement
Authors: Cai Jie
Published: October 2014

Based on the technology of non-contact measurement, this paper has researched on complex curved surface physical modeling and data conversion technology, and has been applied to the human body modeling and data conversion in costume design. The measurement principle of grating projection is used to collect the point cloud data of surface of the physical model in a three-dimensional space. The point cloud data should be preprocessed with noise rejection, multi-view stitching and data reduction by Geomagic Studio software. Then the relatively regular surface area can be gotten by using parameter transformation, through two different ways. After that, the model surface data should be converted into Solidworks parts. By comparison and optimization, a better three-dimensional surface is gotten. A standard database of human body model has been set up and the main parameters of human body model data will be obtained by combined with non-contact three-dimensional measurement system. After all, part of the parameterization of the physical model has been realized through the work of invoking the model of the standard library, comparing the standard model with measured body model, doing the error analysis and so on.
MC Simulation of SEBLUP with Spatial Linear Mixed Model for SAE
Authors: Liu Yan Yu , Jin Ming Zhong , Xie De You , Gong Min Qing
Published: October 2014

For small area estimation (SAE) Spatial Empirical Best Linear Unbiased Prediction, SEBLUP, is involved in linear mixed model with spatial correlation while Empirical Best Linear Unbiased Prediction, EBLUP, often with mutual independence. In this paper, we discussed maximum likelihood estimation (MLE) and compared the efficiency. Simulation shows that SEBLUP with spatial correlation data of spatial small area is more effective than EBLUP.
Application of Genetic Algorithm to Image Segmentation
Authors: Liu Hai Yan
Published: October 2014

Image segmentation is very important in image analysis that needs to separate the related area for the general target distinguishing and analyzing an image, and it can make further use of the target, such as characteristic pick-up and measure on the basis of image processing disposal. In this dissertation, image segmentation based on genetic algorithm will be described. The selection of threshold and the process about image segmentation based on genetic algorithm are described. Finally, image segmentation based on genetic algorithm is used on a picture by Matlab, the result can be accepted. Therefore, it is significant to make analysis on image segmentation based on genetic algorithm.
A Flow Monitor with Deployment Strategy Based on Traffic Matrix Estimation
Authors: Zhang Jian Yong , Zhu Xiao Jin , Chen Zhuo , Hou Hai Jiao
Published: October 2014

Deployment of passive monitoring for IP flows in IP network is a prevailing research in last decade, the primary goal of monitor deployment strategy is to maximize the fraction of monitored flows while minimize the cost induced by the monitoring work. Previous researches often get global traffic information which cannot be easily fetched, and use the heuristic algorithm to get a solution. In this paper, we only use link load and route information to deploy the flow monitors, and a two stage algorithm is used for the deployment strategy. Our simulations and experiments demonstrate the effectiveness of our algorithm, which show that, by using the flow information estimated from the link load and route matrix, it is sufficient to give an effective flow monitor deployment strategy to maintain a high level of measurement coverage and make the cost reasonable in practical condition.
Analysis on the International Competitiveness of Chinese Clothing Industry
Authors: Zhang Jing
Published: October 2014

China has become the largest manufacturer and exporter in the global clothing market with cost advantages. Given the intensification of global competition, it is crucial to assess the present status and international competitiveness of Chinese clothing industry. This paper makes a quantitative analysis on the international competitiveness of Chinese clothing industry by using trade competitiveness index and revealed comparative advantage index. Moreover, based on an in-depth analysis of the influencing factors, this paper puts forward some measures to enhance the international competitiveness of Chinese clothing industry.
Influence of Fusible Interlining on Draping Modeling Ability of Fabrics
Authors: Lu Xin , Wang Gui Li
Published: October 2014

In the design of modern garment, fabrics have a remarkable influence on the garment styles and modeling. This paper, taking the flare skirt as an example, discusses the draping ability of six kinds of different fabric slitting under the conditions of bare chip and adhesive through the experiment. The study shows that the whole modeling of the skirt pieces after adhesion with fusible interlining, will show the changes of the reduced drapability and the reduced angular line numbers and the formed wave’s position dot will move downward. The length of wave will be shortened, the overall width will be widened and the drapability will be worse. The morphology of the bottom wing will have obvious change, that is the bottom wing will become larger and the wave depth of bottom wing become larger. The wave arrangement of the skirt pieces after adhesion takes on the asymmetry condition and the pleating effect of the bottom wing will become worse. In the pattern design of apparel, the effect of the fusible interlining on the fabrics draping modeling should be taken into consideration, which can complete accurately the transformation of style-structure-process and thus serve well with the apparels industrialized production.
Data Processing in Beijing Capital International Airport Regional Economic Impact Assessment and Overall Analysis
Authors: Yu Bo Wen , Ji Shou Wen , Zhang Guang Hui
Published: October 2014

In this paper, the direct impact, indirect impact and induced impact are used to analysis the economic benefit of the Beijing Capital International Airport (BCIA). The representative airports, Atlanta Airport, Dallas-Fort Worth Airport and John F. Kennedy International Airport are selected to compare with the BCIA in the aspects of total impact and direct impact. Some foreign organizations regularly measure certain areas’ economic and social impact generated by the airports. BCIA is compared with a series of areas in Asia Pacific and the UK in several respects.
Data Processing in Performance Evaluation of Logistics Park Based on Fuzzy Comprehensive Evaluation Method
Authors: Hu Jie , Yang Xiong , Ji Shou Wen
Published: October 2014

Due to logistics parks in China is still at an early stage of development, construction uneven results, this paper conducted a study to address the problem of date processing in performance evaluation of the logistics park. Based on the theory of performance evaluation, combined with the characteristics of the logistics park, given the performance evaluation index system of logistics parks, standardized collection methods of logistics parks performance data, and make operating performance comprehensive evaluation of the logistics park using fuzzy comprehensive evaluation method. The evaluation results can provide data to support the government and park managers to promote the logistics park developing healthy, rapidly and sustainably.
Wrinkle-Resistance Property of Tussah Silk Fabric Modified with Butane Tetracarboxylic Acid
Authors: Liu Zhi Mei , Lin Jie , Cheng De Hong , Lu Yan Hua
Published: October 2014

In this paper, 1,2,3,4-butane tetracarboxylic acid (BTCA) were applied to modified tussah silk fabric to obtain good wrinkle resistant property. Tussah silk fabric was treated with a pad-dry-cure method with a liquor of 90% pick up. The wrinkle recovery property, whiteness and mechanical properties of the tussah silk fabric were measured and analysized. The finishing agents BTCA in the presence of catalyst of sodium monophosphate (SHP) as well as the treatment conditions significantly affected the anti-wrinkle effects of treated tussah silk fabrics. All the treated fabric samples showed increased wrinkle resistant property, retention rate of breaking strength and whiteness. The results indicated that BTCA has a bright future in treatmet of silk anti-wrinkle modification.
The Synthesis and Characterization of N-Propyl Pyridine Tetrafluoroborate
Authors: Yu Lu , Tian Peng , Zhang Hong Bo
Published: October 2014

The halogenated hydrocarbon and pyridine are used in the synthesis of room temperature ionic liquid intermediates bromided N-propyl pyridine PPB, and the nuclear magnetic resonance instrument and the intermediate infrared spectrometer are used in chemical structure characterization, so it is determined that the synthesis is the room temperature ionic intermediates PPB. We use differential scanning calorimetric method for the determination of PPB melting point and enthalpy change. We use the double decomposition reaction of PPB and NaBF4in acetone for the synthesis of PP-BF4ionic liquids. We use infrared spectrometer for the structure characterization, it is proved that we have gotten PP-BF4room temperature ionic liquids. Solvent polarity and acid alkali both will have an influence on ultraviolet spectrum diagram displacement of room temperature ionic liquid, so in the research of ultraviolet spectrum diagram of ionic liquids and other solvent mixed solution, it is necessary to indicate which solvent is used.
Research on Fuzzy Control of Mine Ventilation Based on Embedded Systems
Authors: Sha Xiao Yan
Published: October 2014

Taking embedded processor as the core control unit, the paper designs the fan monitoring system software and hardware to achieve the fan working condition detection and real-time control. For the control algorithm, the paper analyzes the fuzzy control system theory and composition, and then combined with tunnel ventilation particularity, introduce feed-forward model to predict the incremental acquisition of pollutants to reduce lag, combined with the system feedback value and the set value, by calculate of two independent computing fuzzy controller, and ultimately determine the number of units increase or decrease in the tunnel jet fans start and stop. Through simulation analysis, the introduction of a feed-forward signal, it can more effectively improve the capability of the system impact of interference.
Research of Oil Quality Online Monitoring System
Authors: Luo Xiu Bo , Xu De Min , Hu Xiao Mei
Published: October 2014

The quality of oil determines the status and life of the devices. However, most Chinese vessels have not equipped with on-line oil quality testing facilities. Therefore, a special on-line oil quality monitoring system for vessels is designed to real-time monitor of oil pollution change. An alarm signal or control signal based on the monitoring results is sent, which supports the purifier automatically and water, particles and gases are removed from the oil to maintain a good oil quality. The system is developed and implemented in the vessel corporation and has a good prospect of application. The application of this system will promote the process of the intelligent device management.
Study on the Application of PLC in Coal Sorting System
Authors: Huang Jin E
Published: October 2014

In order to reduce the coal production cost and labor, PLC is designed as the core technology of coal sorting, and a lot of sensor to distinguish colors and properties of coal join in this system. The sorting effect is very good. PLC coal sorting system has stable, safe, simple, reliable and other advantages, can improve the efficiency of coal production, and has brought the huge profit space for the enterprise. This paper first analyzes the PLC sorting system requirements and functions, and then discusses the control principle of PLC automatic sorting, the total design scheme of automatic sorting and related hardware design analysis, researches and hopes to help PLC coal sorting technology.
Study on the Synthetic Process of the Cefprozil
Authors: Hao Yan Xia
Published: October 2014

Taking 7-APCA as raw materials, in a suitable solvent system, to get 7-APCA alkali solution with the alkali reaction. The paper takes p-hydroxyphenyl glycine dane salt as raw material, to made the corresponding reagent in phthalic anhydride. Forming DMF salt of cefprozil by reaction of 7-APCA alkaline solution and the mixed anhydride. The transformation of methanol, water, and water purification to get cefprozil monohydrate. The total yield was 63%. The chemical structure of cefprozil were confirmed by IR, 1h-nmr. Product quality in line with national pharmacopoeia requirements.
Application of Artificial Intelligence Technology to Coal Mine Machinery Fault Diagnosis
Authors: Li Jie
Published: October 2014

With the development of network and intelligent technology, artificial intelligence technology was applied to fault diagnosis of coal mine equipment maintenance. Using the artificial intelligence technique for fault diagnosis of coal mine machinery, not only the accuracy of coal mine machinery fault diagnosis can be improved, and also a positive significance of the use of the normal operation of machinery and equipment is guaranteed in coal mine. In this paper, the ventilator equipment in the coal mine will be taken as an example for analyzing the application of artificial intelligence technology to coal mine machinery fault diagnosis, in order to improve the maintenance of mine ventilation work efficiency and guarantee the normal operation of the application in the production of coal mining.
Study on Tourism Electronic Platform Based on Large Data Background
Authors: Xie Heng Yuan
Published: October 2014

A big scale data poses a great challenge to data storage, management and data analysis. This article analyzes the basic concepts of large data, and mainly used on large data makes the simple contrast. And paper put forward a platform of regional characteristics based on electronic business information publishing system. Finally the paper gives general model and the realization of the platform structure, key technology and process. The platform uses conversion technology of StrutsCX framework based on J2EE platform and the XSLT parsing template of XML document tree that generates and provide automation platform construction features site for the user, it can quickly set up a tourism industry application component with plug-in manner.
Design and Implementation of Computer Network Monitoring Software
Authors: Cui Jian Tao
Published: October 2014

This paper mainly studies the key technologies of network real-time monitoring system based on Client/Server, and implementation of a real-time monitoring system based on CS/ mode. Using the network communication technology, Winsock technology, TCP/IP protocol, image compression and transmission technology, the process of communication technology and object oriented software technology to realize the main frame module, the system include network monitoring data initialization module, data transmission module, image coding and decoding module, its advantage is to make full use of the existing network resources, the highest price, with real-time information control and real-time control as the center, timely delivery and management of information.
Study on the Manufacturing Technology of Directly Metal Forming Based on Overlay Welding
Authors: Zhang Li Min
Published: October 2014

Rapid prototyping technology can greatly improve the actual processing industrial prototype; this paper introduces the main principle, characteristics and technology of rapid prototype manufacturing. The current rapid prototype manufacturing products and production problems are analyzed. Because of the direct metal forming process have the characteristic of point by point, surfacing with stack molding manufacturing layer by layer, so it is suitable for complex shape parts two-dimensional or three-dimensional functionally gradient materials manufacturing.
Study on Mobile Object Tracking and Intercept Technology Research
Authors: Sun Jun
Published: October 2014

Background difference method [1] is one of the effective paths of improving robot’s vision reaction ability, and robots use background difference method to find the moving object in vision range and conduct tracking monitoring of moving objects. Then it uses support vector to conduct learning fitting of moving object, which can effectively predict the moving trend of moving object, and then it fabricates corresponding decision programs to conduct intercept capture of moving objects.
A Rapid Switching Technology of IP Data Packet Based on Multi-Protocol
Authors: Zhang Guo Fang
Published: October 2014

The rapid development of network raise the role of WAN. As a large-scale backbone network, the failure of network components can lead to huge loss of data and revenue. How to improve the data switching speed and Quality of Service of network data is more and more important problem which Internet Server Provides cared. Multi-Protocol Lable Switching (MPLS) is a new WAN technology which is currently being standardized by IETF. This paper analysise the architecture of MPLS and describe the mechanism of label switching protocol. In addition, this study analyses the encapsulation of data packet at the Label Switching Routers which is on the boundary of MPLS network. A Label Switching Path (LSP) is built by Label Distribute Protocol in core network. A conclution of “one time routed, more times switching” routed was reached.
Design and Implementation of Office Management System in Small and Medium Sized Enterprises Based on Data Mining Technology
Authors: Yin Qiang Fei , Li Qiu
Published: October 2014

This paper introduces data mining technology in enterprise competitive intelligence system; and then introduced theoretical foundation and main clustering method of cluster analysis. The article emphasis on the FCM algorithm and principle and described implementation steps, and proposed the improvement FCM algorithm based on K mean particle size; finally, realize the design and implementation of enterprise competitive intelligence analysis and mining service system, and the improved FCM algorithm is applied in the system.
System Design of Security Evaluation for Data Link Communications
Authors: Feng Hai Xun , Zang Yong
Published: October 2014

Data link communication requires data communication process must have reliability, availability, confidentiality, availability, integrity, non-repudiation, controllability. This has a great effect to ensure the normal communication functions. In this paper the author on the basis of many years of work experience, first discussed the establishment of a risk assessment system data link, then focused on the problem of index weight assessment. To data communication security, this research article will provide some references.
Research on General Permutation Encryption Module Based on Chaos Theory
Authors: Sun Wen Jie
Published: October 2014

Replacement and substitution encryption are two basic types of encryption historically. The classical encryption algorithm has been compromised now, but they still can play special role for modern cryptology. For example, in digital image encryption system, substitution can disrupt the original order of the images and eliminate the correlation of image information which not only can realize security of images, but also can resist intentional attack and destruction of clipping and noise. And transposition transformation is introduced into the design of block ciphers. The substitution has the feature of high efficiency and resistance, which makes it meet the specific requirements of encryption. So substitution cypher can be applied to modern encryption system.
An Analysis of Large-Scale Wireless Sensor Networks with Energy-Saving Problem
Authors: Yuan Li Na , Gong Jing
Published: October 2014

Energy saving is the nature of the optimal balance between the optimization of performance and energy consumption. Due to the node's mobility of large-scale wireless sensor networks and the depletion of electrical energy causing the failure of communication path and network segmentation mong nodes, and because energy consumption of nodes is mainly its communication, to design the routing with energy saving, low latency, extensibility and improving the fault-tolerance is particularly important. Based on the large-scale wireless sensor networks, mainly through introducing the methods of nonlinear modeling, this paper analyzes the fine-grained mapping between the system of energy consumption and software, builds and optimizes the software model of energy consumption and energy consumption-balance model of service quality, and commits to form an effective energy saving to lay a foundation for construction of low energy consumption of wireless sensor network. Research achievement has significant theoretical and application value in public safety, disaster prevention, ecological and environmental protection, urban management, smart home, intelligent transportation, medical and health care, industrial monitoring, green agriculture and other fields.
Mixed Communication Method on the Grid-Based for Wireless Sensor Networks
Authors: Yan Zhu , You Xi Ne , Yan Ran
Published: October 2014

When senors transmit their data to the sink via multi-hop communication, the sensors closer to the sink are burdened with heavy relay traffic and tend to die early. On the contrary, if all sensors transmit datas to the sink via single-hop communication, the sensors further from the sink will die much more quickly than those closer to the sink. In this paper, we first develop an analytical model to derive the optimal cluster radius. Then we propose a mixed communication method on grid-based where the sensors can transmit data to the sink in either single-hop or multi-hop. Finally, we conduct extensive experiments and show that our method outperforms LEACH and HEED in terms of network lifetime by balancing energy consumption.
Analysis on WPAN Mechanism Based on 802.15.4 and Data Structure Design
Authors: Chen Zhi Wei , Gan Yu Ming
Published: October 2014

IEEE802.15.4 is the communication protocol meeting the requirements of short distance and low transmission rate, and achieving the objective of low power. The technique is an emerging wireless communication standard. It is a two-way wireless communication technology with short distance, low complexity, low power consumption and low data transmission rate and low cost. The paper analyzes the features, framework,performance indicators and overall hardware platform structure of JN5121 chip which is used in JENNIC Corporation. And the paper researches the characteristics of actual products for project development.
Research on Building Energy Technology Based on BIM
Authors: Song Xiao Hui
Published: October 2014

The paper mainly discusses the application of BIM technology in computer aided architectural energy efficiency design. First the paper analyzes the development and characteristics of BIM analysis software, discusses the present situation of computer aided architectural energy efficiency design. Taking Chongqing area as an example, the paper were discussed simulation software and application of BIM technology from the scheme design stage and anaphase to illumination analysis, so as to provide reference for the future research and application.
Evaluation of Asphalt-Aggregate Adhesion Using Surface Free Energy Theory
Authors: Guo Chen Hao , Han Sen , Han Rao Rao
Published: October 2014

In order to take a precise and objective evaluation on asphalt-aggregate adhesion, this paper analyzed the function at asphalt-aggregate interface using surface free energy theory. Two asphalts and two aggregates were selected and their surface free energy parameters, , and , were measured by the Wilhelmy plate method and the column wicking technique, respectively. Then, the resistance to moisture damage of asphalt mixture was predicted using calculated asphalt-aggregate adhesive bond energy and asphalt cohesive bond energy. The results show that moisture damage is a thermodynamically favorable phenomenon. Asphalt with a great acid-base polar component and a low Lifshitz-van der Waals apolar component always exhibits perfect cohesion.