bluuebunny/crossref_metadata_2025 huggingface dataset:
Axial Deformation of the Planetary Differential Micro-Displacement Mechanism with Finite Element Analysis
Authors: Fan Shu Tian , Guo Xian Peng
Published: October 2014

Based on the study of planetary differential roller screw, a planetary differential micro-displacement mechanism is designed for tool compensation. Axial stiffness is an important factor of over-all properties of planetary roller screw. The structure of planetary differential roller screw is similar to planetary roller screw. The axial stiffness was analyzed with Hertz contact theory and confirmed with the ANSYS. Finally, the theoretical values and simulation values were compared to verify the simplified model, and the error was analyzed. The results show that the relative error between simulation values and theoretical values are less than 5%. Therefore, the simplified model of the finite element is reasonable.
Biomechanical Investigation of the Retrograde Intramedullary Nail Fixation for Distal Femoral Periprosthetic Fracture after Total Knee Arthroplasty
Authors: Tai Ching Lung , Liao Pei Yi , Peng Wei Yang
Published: October 2014

This study investigated the effect of fixation screw number of intramedullary nail on the postoperative stability of the femoral construct in treatment of periprosthetic fractures after total knee arthroplasty. With use of a material testing machine, both compressive and torsion tests were conducted to evaluate the biomechanical behavior of intact, and femora with periprosthetic fractures treated with retrograde intramedullary nail with 5-screw and 9-screw fixations. The results indicated the followings: 1) the average compressive stiffness for intact, 5-screw and 9-screw groups were 1,159±61.7, 950.6±18.6 and 958.2±26.1 N/mm, respectively. No statistical difference was found between 5-screw and 9-screw groups (p>0.05). However, significant difference was found between intact/5-screw and intact/9-screw groups (p<0.05). 2). the average torsion stiffness for intact, 5-screw group and 9-screw group were 5,527±71.2, 2,652±35.4 and 2,858±81.7 N*mm/Degree, respectively. Statistical difference was found between each other groups (p<0.05).
Probabilistic Evaluation of Residual Stresses for Hole-Drilling Tests
Authors: Frydrýšek Karel , Pečenka Luboš
Published: October 2014

The article focuses on the application of a probabilistic approach to the evaluation of residual stresses in tensometric (strain gauge) hole-drilling methods. The principle of this method is based on the use of a strain gauge rosette on the surface of the tested component and the subsequent drilling of a hole in the centre of this rosette. This disturbs the internal force and moment equilibrium, which in turn causes surface deformations that are measured by the rosette. The measured deformations are then evaluated, and derived theories are applied to determine the course and magnitude of residual stresses taking into account the random character of the input parameters using the SBRA (Simulation-Based Reliability Assessment) method, which proves to be highly practical. The probabilistic approach to determining residual stresses is a new, original approach which brings a suitable and accurate description of the variance in measured values.
Characterization of Stiffness Matrix for Surface Effects
Authors: Chen Xiao Liang , Yang Quan Hu , Huang Kai Zhi
Published: October 2014

The stiffness matrix of volume elements in the traditional finite element methods is symmetry and positive definite. Due to the relatively high surface-to-volume ratio, the surface effect can be significant for nanostructures. In a new numerical method which combines surface energy and three-dimensional finite element analysis, the stiffness matrix with surface effects was computed numerically. Results show the stiffness matrix of surface elements is symmetry and non-positive definite.
Pressing Process of Al-W Alloy Powder and Constitutive Model the Pressed Billet at Elevated Temperatures
Authors: Wu Yao Jin , Xue Yong , Zhang Zhi Ming , Huang Ya Wei , Wang Qian Qian , Zhang Fu Xiang
Published: October 2014

Al-W alloy billets were produced by powder pressing at room temperature and subsequent hot pressing. Quantities of billets were compressed at constant strain rate and temperature with 60% height reduction on Gleeble-3800 thermal simulation testing machine to study the plastic flow behaviors of the test alloy. The temperature of the compression processes ranged from 450 to 570oC. The strain rate was varied between 0.001 and 1s−1. The regularity of flow stress for the test alloy varied at elevated temperatures was studied. The activation energy during hot deformation is 757.943 kJ/mol by calculated, and the Arrhenius constitutive relation model was established. Keywords: Al-W alloy, powder metallurgy, thermal simulation, constitutive model
Determination of N-Heptyl Pyridine Tetrafluoroborate in Ethanol
Authors: Yu Lu , Tian Peng , Xin Shi Gang , Ding Hong Lin
Published: October 2014

N-heptyl-pyridine tetrafluoroborate is prepared by the double decomposition reaction of HEPB and NaBF4. The ionic liquid at room temperature used in the experiment has a significant absorption determined by UV spectrum within the range of 200-400nm, the maximum absorption wavelength of HEP-BF4ionic liquid in ethanol is 244nm. The standard working curve of HEP-BF4ionic liquid is y=0.00441+0.01563x (R=0.99912). The linear range of HEP-BF4ionic liquids in the ethanol is 1-75 mg/L. The recovery rate of HEP-BF4ionic liquid which is between 96.6% and 102%, is measured by standard addition method in ethanol.
Experimental Study on the Separation Performance of Combined Gas-Liquid Separator
Authors: Zhang Qing , Yu Bo , Liu Yu
Published: October 2014

In order to evaluate the separation efficiency of each module in this type of novel combined separator, by PDPA(Phase Doppler Particle Analyzer) we find that under different conditions in 6 combinations, combination 6 (including cyclone + stabilizer + blade+ baffler) has the highest separation efficiency, and there are relatively efficiency valley region in all the 6 combinations. Under the same conditions, the average separation efficiency of the baffler is higher than the blade, and then the blade and baffler have their own advantages in different flowrate. To use stabilizer can effectively improve the flow field inside the separator, restrain and reduce vortex and backmixing, more conductive to the gas-liquid separation.
Study on the Quality Evaluation System of Belt Conveyor
Authors: Wang Xu Ming
Published: October 2014

The belt Conveyor is widely used in all kinds of machanics, so the quality evaluation of belt conveyor is very necessary. Extenics theory is frequently used to build matter-element model. This paper uses theory of matter elements analysis to establish the mathematical models for the quality evaluation of belt conveyor, presents an evaluation regulation, calculates the relational degree, and define the weights of evaluation indexes with the analytic hierarchy process. Finally, the quality grade of the awaiting evaluation belt conveyor is established.
Simulation and Analysis of Formula Racing Car Double Tail Based on CFD Technology
Authors: Kang Ning , Yang Yang
Published: October 2014

Rear wing is the most predominant element to racing car aerodynamics. Double tail race car would be the most suitable choice to make a brilliant balance between cost and performance. A simplified formula student racing car model was simulated employing CFD method. The double tail was carried on four factors four levels orthogonal design method and the optimal value of each factor was achieved. The results show that the whole car aerodynamic performance can be improved with the appropriate position and angle of attack of the double tail.
Reliability Analysis of Y-Ring Rod Seal on the Servo Turret
Authors: Wen Jing , Lu Xi , Fu Xiang
Published: October 2014

From the perspective of stress and heat distribution, the influence of material and heat on working reliability of the turret seal is analysed. Based on the actual working condition of a servo turret, the FEA (finite element analysis) of structural mechanics and thermal structural coupling is carried out on the key reciprocating seal between piston and oil cylinder. The analysis re that material hardness and temperature have great influence on the seal contact pressure and the leakage. To be specific, the lower seal material hardness leads to the lower maximum contact stress and longer seal’s service life without increasing the net leakage under 3.5 Mpa oil pressure. The result demonstrates that the material with hardness 90 is better than that with hardness 95 under the hydraulic pressure 3.5Mpa. Besides, temperature distribution of seal under the working condition is gained through the thermal structural coupling analysis. It is concluded that increasing temperature lead to decreased leakage and enhanced contact stress. Consequently, the influence of the temperature should be taken into consideration on the research of seal numerical model.
S Type Single-Stage Double Suction Centrifugal Pump in Vibration and Shaft Broken Analysis
Authors: Liu Wei , Wang Feng Lan
Published: October 2014

This article describes the reasons for vibration and off-axis S-type single-stage double-suction centrifugal pumps,due to the design of the pump itself and the reasons for which the work environment and the work of the pump caused by the vibration,thereby causing the shaft fracture, and other reasons, resulting in breakage of the pump shaft from a comprehensive analysis of the reason for the above problems.
Thermal Conductivity Model with Non-Constant Boundary Condition in One-Dimensional Semi-Infinite Case
Authors: Bai Yu
Published: October 2014

Thermal conductivity is one of the important transport properties of the semi-infinite solid. In this paper, using Laplace transform, we obtain the thermal conductivity model in one-dimensional semi-infinite case with non-constant boundary condition. Then two examples are given for evaluation of our model. One is linear boundary, and test data are obtained to compare with our model. The second one is sine boundary, which can predict the interior temperature by our model. The results obtained are useful for the thermal engineering science.
Studied on Indicator Gases of Coal Based on BP Neural Network Forecasting System
Authors: Bian Bing , Liu Zhi Jian , Zhang Wei
Published: October 2014

In order to forecast coal spontaneous combustion, take advantage of BP neural network. The date is recorded from one coal mine of Donghuantuo. The input of the neural network is the concentration of CO, CO2 and CH4 in different temperature and use CH4-to-CO, O2-to-CO2 ratio. In this way, the influence of the wind will be little. After trained, the network can show 0 or 1 which represent fire or not. After trained 43 times, the error is lower than 0.000 1. It proves that BP neural network can deal with the date of coal mine. What’s more, BP neural network has huge advantages.
The Application of New Predictive Functional Control in the Converter Gas Recovery System
Authors: Liang Xiao Ming , Wang Hui Fang
Published: October 2014

In view of the characteristics of the converter differential pressure control system are nonlinear, large delay, uncertainty and large disturbance, the traditional PID control is strict with process model, which can't satisfy the requirement of tracking set point and suppressing disturbance. Predictive functional control is not strict with process model, it has good robustness, but has problem of large amount of calculation. By introducing the output prediction error and the output increment prediction error in the performance index function, a new predictive functional control algorithm with the PID structure is proposed, which combines ability of dealing with delay and robust for predictive function control with ability of favorable anti-interference and fast tracking for PID control. The simulation shows that the control strategy is feasible, and can obviously improve the dynamic quality and anti-interference ability of the converter differential pressure control system.
Applied Technology in Design and Implementation of Infrared Communication Module
Authors: Wang Hao , Han Ze Yu
Published: October 2014

Infrared communication technology is a short-range wireless communications technology widely adopted in the world today range .This paper detailedly introduces the basic principles of infrared protocol. Infrared communications applications of this paper is to achieve system applications of infrared communication between two development boxes with an infrared transceiver modules.The program consists of PC program and lower computer program two parts,also are called infrared communication basic procedures and infrared communication console program.Running PC program on a PC,running lower computer program on the development box.Based on Borch-company's S3C2410-S ARM9, experimental development box implements a infrared communications infrastructure lower computer program based on serial meeting SIR standards.By calling the Qt graphics library,using the programming language C++,it achieves a visual infrared communication console PC program under linux system.
Research and Design of Magnetic Substrate Microstrip Antenna with Electromagnetic Band-Gap Structure
Authors: Yang Hong , Liu Dan , Chen Wei
Published: October 2014

Based on the magnetic materials (JV-5) substrate, Double L-shaped slot microstrip antenna is designed. The bandwidth is over 2 times that of the normal substrate and a 40% reduction in size happens.. On this basis, the microstrip antenna with magnetic substrate EBG structure is designed and the EBG structure uses the corrosive effects of joint floor, namely getting periodic H-shaped and circular structures by the floor corrosion, and performing a simulation with HFSS14.0. The results show that the EBG structure of magnetic material having a prominent advantage of the miniaturization and bandwidth-broaden compared to a microstrip antenna with non-magnetic materials substrate, resulting in more than 10% relative bandwidth and a slight gain loss. To some degree, introducing EBG structure can reduce the size of the antenna and increase its bandwidth, and it also improve the gain and radiation characteristics of the antenna.Key words: EBG structure; magnetic material;Double L-shaped slot microstrip antenna; gain
The Development and Analysis of an Automatic Air Powered Automobile System - An Application of Engineering Mechanics
Authors: Cai Shao Biao , Zhao Yong Li
Published: October 2014

Application of Sustainable clean energy has become a growing interest in mechanical, material science, manufacturing/fabrication and relevant engineering. This paper presents the modeling and analysis of a pneumatic air-powered automobile system, a candidate for a new generation of hybrid-vehicle technologies. Design, manufacturing and material selection pertaining to the project are discussed. It was designed to explore the applications of clean energy and to gain an in-depth understanding of the engineering processes and methods of modeling such a complex system.
Design and Implementation of Smart Electricity with Monitor Integrating Forecasting and Status Estimation Functions and the Relevant Simulation Based on MATLAB
Authors: Zhang Chao Dong , Ji Shou Wen , Dang Shu Ping
Published: October 2014

With the development and proliferation of smart grid and the relevant techniques, smart the electricity monitor is increasingly important for improving the overall performance of power network. With a number of new attributes, the smart electricity monitor is significantly different from these conventional electricity meters. For example, it actively provides the information for the management, reliability and maintainability purposes and acts as an irreplaceable component in the power network. In this paper, we mainly focus on the design and implementation of the smart grid which integrates a series of innovative functions, for example demand forecasting and status estimation. Specifically, the research backgrounds pertaining to this field will be briefly introduced and the state-or-the-art mathematical models related to both demand forecasting and status estimation will be constructed accordingly. Also, to investigate their feasibility and efficiency, a set of simulations based on MATLAB will be conducted and the simulated results will be presented. Finally, a complete and innovative prototype of smart electricity use monitor integrating forecasting and status estimation functions can be constructed, verified and analysed in depth by both of mathematical expressions and simulated results.
Research and Design of Thin Seam Shearer Self-Turning Positioning System
Authors: Wang Liang , Ren Lai Hong , Zeng Qing Liang , Gao Jie
Published: October 2014

Real-time positioning of thin seam shearer's working position is an important prerequisite to achieve thin seam mining face automation control. Based on the analysis of walking mechanism of thin seam shearer and the existing shearer positioning systems, a method was proposed by detecting the shaft angle with the improved thin seam shearer angle encoder. Meanwhile shearer automatic calibration method was designed based on the magnetic sensor by adjusting the error coefficient. The system provides the data support of thin seam shearer automation control.
Simulink Simulation of Fuzzy-PID Algorithm and its Application in the Servo Drive System Based on Fuzzy PID Controller
Authors: Mu Ji Xiang
Published: October 2014

In this paper, based on fuzzy PID controller, a fuzzy inference method is utilized to realize automatic regulating PID parameter, and the application of the controller in motion control system is studied with Matlab Simulink. The results of simulation indicate that the cont roller gives a good control performance and has a high reference value for further applications..
Mineralogical Composition and Microstructure of Sinter in Ansteel
Authors: Liu Jie , Zhou Ming Shun , Zhai Li Wei , Zhang Hui , Xu Li Bing
Published: October 2014

In order to improve the qualities of sinter of Ansteel, the sinter’s metallurgical property was examined and analyzed that from the second workshop and the fourth workshop of ironmaking plant. And mineralogical composition and microstructure in high basicities sinter were investigated and analyzed by the X-ray diffraction, the optical microscope and the scanning electron microscope in laboratory. It was found that the differences between in sinter’s mineralogical composition and microstructures are according with the differences in chemical composition and the metallurgical indexes. Both the sinter’s minerals are mainly composed of hematite, magnetite or maghemite, calcium ferrite, dicalcium silicate, silicate glass phase. The content of the carbon in the fourth workshop is higher. So, it should decrease the content of the carbon that makes the microstructure of the sinter more rational.
Automatic Inspection System for Surface Defect of Precision Steel Ball
Authors: Chen Yi Ji , Tsai Jhy Cherng , Hsu Ya Chen
Published: October 2014

Precision steel ball is one of the most critical components for rolling transmission. As precision ball affects the performance of precision transmission system, fully inspection of these balls is an urgent need for the industry. This paper is to develop a real-time inspection system for surface defects of precision steel ball with fast and robust method and mechanism. The developed system consists of an optical measurement module as well as a mechanism module for full surface inspecting of the steel ball. The minimum defect and area can be detected by the developed system are 0.1mm and 0.01 mm2 respectively. The developed system has been testified against the designed specifications at speed higher than 3pc/sec and less than 0.5% missing rate. It verified the resolution, accuracy and robustness of the developed system which is capable for final defect inspection of steel balls for grade 100 bearing.
Study of the Relationship between Heat Island Effect and Urbanization Expansion Based on Index Method of Xi'an City
Authors: Han Ling , Zhang Yu , Huang Xi Tao , Ma Wen Tao
Published: October 2014

In this paper, it extracted and monitored the ground temperature, urban land, green space, water, bare ground in Xi'an used LANDSAT images in different periods of 1995, 2006 and 2013, analyzed the relationship between the changes of urban underlying surface and heat island in the past 20 years in Xi'an city, which is in order to provide basic information for urban rational designation and improve environmental conditions. The study found: it was feasible and accurate to study of the relationship between urban heat island and urbanization expansion based on index method, which had more statistically significant compared to the traditional classification methods and achieved a shift from qualitative to quantitative. The results show that: the urban heat island and Xi'an urbanization expansion is significantly correlated. The urban heat island is negatively correlated with green space and water body, and is positively correlated with buildings and bare land; in the past 20 years, Xi'an city expanded approximately 4.25 times, the heat island area continued to grow, but the strength enhanced first and then weakened; since 2006, the green space and water area have grown within the third ring road, the urban structure has become more rational, the trend of urban heat island has slowed. Keyword:UHI;Urban expansion;NDBI;NDVI;MNDWI;BI
The Analysis on the Optimum Thickness of Square Air-Interlayer in Building Materials
Authors: Chen Gang , Zhang Li Guo
Published: October 2014

This paper conducts a simulation study on the natural convection heat transfer process in square air-interlayer. According to the meteorological parameters in regions of hot summer and cold winter, two typical boundary temperature contrast is selected 6.5 and15 °C, using Fluent software to simulate condition of air-interlayer in 10 groups of material with thickness from 6 to 60 mm respectively to draw conclusion on how heat transfer quantity, thermal resistance and heat transfer coefficient change with different thickness of the air-interlayer. The result of simulation shows that when the square air-interlayer thickness was about 20mm, the variation rate of the total heat flux and heat transfer coefficient reach a turning point. Thermal resistance will change slowly with a small numerical value after this point. Therefore, the optimum square air-interlayer thickness is 20mm. Combined with practical engineering application, it provides better technical support for research and development of energy-saving building materials.
Study on Radioactive Organic Wastewater Treatment by Fenton Reagent
Authors: Xiang Ying Hong , Zhong Yang Yang , Chen Chun
Published: October 2014

The radioactive organics in wastewater were removed by Fenton reagent. The optimum conditions determined by single-factor test and orthogonal experiment are as following: [H2O2] =1.0mol·L-1, [Fe2+] =6.00mmol·L-1 and 30min at pH=4.0. Under these conditions, the COD removal efficiency was 81%. The dosage of Fe2+ was the most influential factor on organic wastewater COD removal by Fenton and the following influential factors were the reaction time, H2O2 dosage and pH value. In the process of radioactive wastewater treatment by Fenton, the effect of molten iron complexes flocculation was bigger than hydroxyl radical oxidation on COD removal.
An Ecological Compensation Mechanism of Chishui River Water Resources Protection and Research
Authors: Qiu Liang , Zhai Hong Juan
Published: October 2014

Chishui River, a first-order south tributary of upper Yangtze River, extends cross Sichuan, Yunnan and Guizhou provinces and is famous as the “eco-river with a lot of endemic fishes”, “Beauty River with natural scenic landscapes”, “Chinese famous liquors river with Maotai” and “hero river”. According to the existing problems in Ecological Environment of the Chishui River, the ecological compensation mechanism was established and the compensation of the main watershed ecology, ecological compensation object, ecological compensation standards and ecological compensation ways were determined, for protecting the environment requirements of the rare and unique fish and Liquor industry production of Yangtze River.
Biomechanics Analysis of Shooting in Basketball
Authors: Chen Jing
Published: October 2014

By literature review, expert interview, and biomechanical methods, in this study using 3D film analyzing system to reveal the kinematics parameters of shooting in basketball players. The purpose of this study is to investigate the characteristics of joint angles at release and reveal the reason for improving the hit rate in shooting. Ten collegiate level basketball players in this study. After digitizing the data, this study come to the following conclusion that (1) when the basketball players flex their left and right knee joints at about 131.5o and 97.6o respectively at the lowest center of gravity, in this position they can get the ideal shooting distance, (2) in the medium or long range shooting, if the arc of basketball flight is excessively low, it will make the ball touch the hoop and then rebound outwards. Hence, the higher the arc of basketball flight, the higher the hit rate will be in shooting.
Effects of Inoculating Compound Lactic Acid Bacteria on the Quality of Cured Fish
Authors: Wu Yan Yan , You Gang , Li Lai Hao , Yang Xian Qing , Wei Ya
Published: October 2014

Inoculation with compound lactobacillus in the low-salt pickled fish, fermented and dried to produce cured fish. The paper studied the effects of inoculating compound lactobacillus on the pH, total volatile basic nitrogen (TVB-N), amino acid nitrogen content (AA-N) and total acid content of salted fish quality. The results showed that, compared with the non-vaccinated groups (CK), The cured fish inoculated lactobacillus had a lower pH and TVB-N content, higher the amino acid nitrogen content and total acid content. Inoculated compound lactic acid bacteria into salted fish, to a certain extent, could improve the nutritional value and edible value, which had positive effects on the fish quality.
Applied-Information Technology in an Improved Certificateless Signature Scheme without Bilinear Pairings
Authors: Wang Ying Lian , Ye Jun Yao
Published: October 2014

This paper analyzed two certificateless signature scheme without bilinear pairings, which pointed out that the Wang scheme had high efficiency, simple algorithm and short signature length, but it had low security. Compared with the Wang scheme, the Chen scheme had high security, but it had high calculation cost, low efficiency and long signature length, which was not practical in wireless network environment requiring low bandwidth. In order to overcome the disadvantages of the two schemes, we proposed a new improved certificateless signature scheme, which had simple calculation, high efficiency and short signature length. We proved the scheme to be secure based on the discrete logarithm problem.
Applied-Information Technology in Certificateless Proxy Signature Scheme without Bilinear Pairings
Authors: Wang Su Li , Ye Jun Yao
Published: October 2014

This paper researches on the existing certificateless proxy signature scheme, there is almost no certificateless proxy signature scheme based on discrete logarithm up till now. Combining the knowledge of discrete logarithm over finite field and the advantages of certificateless cryptography, this paper proposes an efficient certificateless proxy signature scheme based on the discrete logarithm without bilinear pairings. To avoid the key escrow problem in the id-based cryptosystem and the saving certificate problem in the traditional public cryptography, meet the good properties of the proxy signature, such as unforgery, dependence of the proxy keys, distinguish of the proxy signature and anti-abuse. The scheme does not use the bilinear pairings, and based on the hard problem of discrete logarithm in the finite field, given the proof and discussion of the validity and security of the scheme.
Mining Approximate Frequent Itemsets over Data Streams
Authors: Su Na , Wu Zhe Hui , Liu Ji Min , Liu Tai An , An Xin Jun , Yan Chang Qing
Published: October 2014

This paper proposes a method based on Lossy Counting to mine frequent itemsets. Logarithmic tilted time window is adopted to emphasize the importance of recent data. Multilayer count queue framework is used to avoid the counter overflowing and query top-Kitemsets quickly using a index table.
Applied-Information Technology in Willingness of Online Group Buying for College Students
Authors: Li Xiao Ting , Zhong Lin , Ji Shou Wen
Published: October 2014

As a new e-commerce model, network group purchase develops rapidly for its advantages such as conservation and convenience. The college student is an important part of consumer of the online group buying, so the research on college student willingness has a important reference value for the expansion of market. Firstly, the article has a theoretical study on the influence factors of willingness of Online Group Buying for college students and carries out related questionnaires. Secondly, the article makes factor analysis, correlation analysis, multiple regression analysis using the statistical software of SPSS19.0. Finally, this paper proposes corresponding operation and management recommendations for relevant participants in online group-buying according to the study results.
Discusses on the Information Literacy Cultivation of Farmers in China
Authors: Bai Ruo Qi
Published: October 2014

This paper analyses the problems of information literacy and elaborates the cultivation stress in the aspects of consciousness, capacity and ethics in China. It also proposes some suggestions of enhancing the information literacy environment in rural areas.
Application of the Technology of Big Data in Environment Basic Public Service
Authors: Wang Xu
Published: October 2014

Now environment basic public service is an important component of basic public service in China. However, there are deficient & unbalanced supply, single mode of supply, backward technology and other problems in environment basic public service. This needs to use scientific and technological innovation to change this situation. The trend of innovation is to use the technology of big data to establish the system of wisdom environment public service.
Synthesis of Oktakis (tetramethylammonium)-T8-silisesquioxane and its Application in Polyester Fabric Functional Modification
Authors: Hao Xu , Liu Zhi Mei , Lin Jie , Lu Sheng , Cheng De Hong , Lu Yan Hua
Published: October 2014

To improve the properties of polyester fabric, the oktakis (tetra-methyl-ammonium)-T8-silisesquioxane (TMA-POSS) is applied to modify polyester fabric. TMA-POSS is synthesized by using tetraethyl orthosilicate and tetramethylammonium hydroxide and the structure of TMA-POSS is characterized by FT-IR spectra and the particle size distribution of TMA-POSS is measured by a size analyzer. Antistatic property, wetting property and dyeing performances of the modified polyester fabric are investigated. The results indicate that when the TMA-POSS concentration is larger than 4% (o.w.f.), the wetting angle reached up to 0; the peak voltage, attenuation cycle and capillary value are 1283.0 V, 16.0cm and 3.9s respectively.
Research on the Bleaching Process of the Non-Silicon Oxygen Bleaching Stabilizer
Authors: He Hua Ling , Lu Sheng , Song Ming Su , Yu Zhi Cai , Cheng De Hong
Published: October 2014

In this study, a type of non-silicon oxygen bleaching stabilizer was used to cotton fabric in the hydrogen peroxide bleaching process. This type of novel non-silicon oxygen bleaching stabilizer was prepared mainly with ethylene diamine tetraacetic acid (EDTA) and magnesium chloride. The results showed that adding the non-silicon oxygen bleaching stabilizer into the bleaching solution obviously decreased the hydrogen peroxide decomposition rate and improved the fabric whiteness. Optimal conditions was found as follow: non-silicon oxygen bleaching stabilizer 4.5 g/l; bleaching temperature 75-85 °C; pH of bleaching liquid 11; bleaching time 40-45 min. In summary, the results showed that the self-made non-silicon oxygen bleaching stabilizer could make the cotton fabrics obtained great whiteness, capillary ability and breaking strength.
Development of the Teaching Games System Based on Mobile Learning
Authors: Su Yang Na
Published: October 2014

Mobile learning is the future development of digital learning, Due to the different mobile development system for different mobile devices, which became a major bottleneck for mobile development. Existing mobile learning resources are scarce, showing most of the text, web pages, video format, rare game theme unattractive for the format of fixed points, lack of reusability and versatility. Base on the characteristic of Dispersed, fragmentary characteristics of mobile learning, imitating the form of the theme of the popular online game, to make the learner a more active, more effective and more lasting in mobile learning. Use Flash to develop mobile learning teaching game, introduces the idea of integrable Ware to mobile game development, separate the knowledge from the game, and improve the reusability and versatility of the game.
Research on ID-Based Proxy Re-Signcryption Scheme
Authors: Wang Yan Hong , Ye Jun Yao
Published: October 2014

The ID of the user is the public key, key generator center (KGC) generates the prime key, and the private key of the user is generated by the user's ID through KGC. This paper constructs a new ID-based proxy re-signcryption scheme, in this scheme, uses a semi-trusted agent to achieve the transparent conversion between identiy decryption and identity verification, the verification of signcryption doesn't need the plaintext, in the random oracle model, based on the GBDH problem, we prove that this scheme is secure..
Solving Expensive Multi-Objective Optimization Problems by Kriging Model with Multi-Point Updating Strategy
Authors: Han Ding , Zheng Jian Rong
Published: October 2014

A method which utilizes Kriging model and a multi-point updating strategy is put forward for solving expensive multi-objective optimization problems. Assisted by a defined cheaper multi-objective optimization problem and a maximum average distance criterion, multiple updating points can be found. The proposed method is tested on two numerical functions and a ten-bar truss problem, the results show that the proposed method is efficient in obtaining Pareto optimal solutions with good convergence and diversity when the same computation resource is used comparing with two other methods.
The Design and Application of Monitoring Framework Based on AOP
Authors: Mao Li Na , Tang Lin Yan
Published: October 2014

In this article apply AOP technology to multithreaded monitoring, using a database to store thread information multi-threaded monitoring platform implementation scheme, thread monitoring module is completely independent of the original system.
Influence on the Microstructures and Properties of A356 with Vibration Pressure in Lost Form Casting
Authors: Zhao Zhong , Fan Zi Tian
Published: October 2014

In order to improve the mechanical properties of A356 aluminum alloy in lost form casting (LFC), vibration and pressure were applied to solidification process of LFC, and the microstructures and the mechanical properties of the castings were compared with that of the castings in LFC without vibration and pressure. The results indicated that the grains of A356 alloy with vibration pressure in LFC became finer, and the dendrites decreased, and the equiaxed grains increased. At the same time, the porosities of the castings were significantly reduced. Compared with conventional LFC, the tensile strength, elongation, and hardness of A356 alloy with vibration pressure in LFC were all increased by 10% or above.
Analysis on Auto Intra-Industry Trade between China and the USA
Authors: Zhang Jing , Pan Li
Published: October 2014

This paper conducts an empirical analysis on Sino-US intra-industry trade of auto industry by using the G-L index and classification index and finds that the level of Sino-US intra-industry trade of auto industry is relatively low. In addition, the quality of China’s auto is far more behind that of the USA in terms of intra-industry trade. Finally, this paper proposes some suggestions to further promote the development of Sino-US intra-industry trade of auto industry.
IDEF-Based Procedure Analysis and Restructuring Design of the Online Overseas Purchasing Agent Business
Authors: Wang Hui Ting , Ji Shou Wen , Zhong Lin
Published: October 2014

For the lack of specific constrains, the lack of multi-sectoral joint supervision and the lack of data acquisition for online overseas purchasing and irregular clearance procedures and the loss of national revenue during the process of online overseas purchasing, this paper analyzes and restructures the process of it based on iDEF0 and IDEF3 models. Advantages of the restructuring process are mentioned in this paper.
Data Processing in Risk Evaluation of China’s Old Real Estate
Authors: Yang Jian Ping , Zhang Yan
Published: October 2014

In the recent years, the old real estate has a broad development prospects in the real estate due to the aging of the population and the changes of pension. Because the old real estate project is not mature, so there are many potential risk factors in the process of development. This paper uses the risk matrix evaluation method to build old real estate development risk evaluation model. We take some specific data into the model, then can conclude that project risk assessment level through the calculation of the data.We can find out the key factors in the project development and judge the risk level of the whole project.
Data Processing in Real Estate Industry for Selection of Strategic Alliance Partner for Real Estate Enterprise
Authors: Yang Jian Ping , Hou Li Jun
Published: October 2014

Strategic alliance of real estate enterprise is the strategic choice responds to the current market environment and pursue sustainable development in real estate industry.While,the scientific selection of partner is the start and the key to success for establishing strategic alliance.Combination empowerment method and cloud model is introduced to the selection of strategic alliance partner for real estate enterprise.With the help of corresponding technology and equipment,through a series of data processing for data collection,processing, transformation and transmission proves the method can be used more effective in practice of the selection of strategic alliance partner for real estate enterprise.
Data Processing in Optimization and Design of Regional Layout Based on Pharmaceutical Logistics Distribution Center
Authors: Wu Xi , Ji Shou Wen , Nan Lan
Published: October 2014

At present, the pharmaceutical logistics industry in our country is still not perfect, and the pharmaceutical logistics enterprises have not occupied the home of advantage in China. Establishing pharmaceutical logistics distribution center can make well coordination with production, transportation and other aspects, so that the upstream and downstream enterprises can complete the delivery mission, shorten the logistics time, reduce logistics cost better. The actual data of import goods in this paper to Zhongyou of pharmaceutical logistics company in Gansu at present as the basis, use the association graph method to design the best layout of distribution center, draw the final layout, make reasonable arrangements for each functional area location, shorten the walking path, improve the distribution center operation efficiency, so as to provide quality service delivery for each customer, in order to meet the needs of daily doses of whole northwest area.
Material Analysis and Innovative Product Design with Process Model in Cultural and Creative Industries
Authors: An Jing Wen , Liu Ying
Published: October 2014

Through the analysis of the characteristics of design and material in cultural and creative industries, this study focuses on the urgent need for an appropriate product design with process model in cultural and creative industries. An innovative product design with Process Model in cultural and creative industries based on both the specific industrial characteristics and the interaction design idea is proposed. It includes the establishment of cultural elements library (focus on the application of the material symbols), proposition of cultural themes, extraction of cultural elements based on Kansei Engineering and implantation of cultural elements based on design semantics and semiotics, and especially the interaction design.
The Fabrication of the Convex Platform Surface with Phyllotactic Pattern by Electrolytic Etching Method
Authors: Ma Fei , Lu Yu Shan , Wang Jun
Published: October 2014

In order to get the convex surface with phyllotactic pattern, the convex surface with phyllotactic pattern on end face of work-piece and its mask were designed based on the phyllotactic theory of biology, the surface was fabricated by electrolytic etching method, and also the fabricating processes were investigated .The results show that the convex surface with phyllotactic pattern can be fabricated by electrolytic etching method , and under the condition of room temperature (25°C), composite etching liquid which composed of NaCl,NaNO3,Na3PO4,etc., has better performance than the pure NaCl etching fluid, and in the current density of 15A/dm2, the etching rate was 3.292μm/min by composite etching liquid when steel 45 is etched. This technology can be used for fabricating the end grinding wheel with the phyllotactic pattern of abrasive clusters.
Study on Chip Breaking of HSS Tool with Convex Stripe
Authors: Wu Zhong Liang , Zhao Jie , Wang Yan Lin
Published: October 2014

Chip breaking is important during manufacturing processes. A method of chip breaking is described. Common high speed tool was selected as cutting tool. The convex stripe was made by the laser instrument on the rake of cutting tool. Cutting experiments of aluminum alloy were carried out with this kind of tools. Experimental results show that chip breaking of tools with convex stripe is easier than ordinary tools. And the chip shape is always arc. The chip created by tools with convex stripe breaks more easily when cutting depth is less than 0.5mm. There is no damage on cutting tool with this method which is simple for manufacture.
Researches on the Optimal Design of Intersection Signal Lights Fuzzy Control
Authors: Yao Jin
Published: October 2014

Fuzzy control is an important branch of intelligent control, and this paper describes the application of fuzzy pattern study in intelligent control, begins with a brief overview introduction for development of intelligent control, and then describes the main components of the fuzzy model and its characteristics and fuzzy pattern control system. Fuzzy pattern applications in the intersection signal intelligent control showed fuzzy mode control can effectively reduce the single intersection average vehicle delay time, making the intersection more unobstructed to pass.
Design of Control Scheme for Variable Air Volume Air-Conditioning System
Authors: Zhang Fan
Published: October 2014

The air quantity of variable air volume system for the rooms and the total air quantity of the system changes with the change of room load. Combined with the system composition in the laboratory, the paper determines the control scheme of the variable air volume system, that is, indoor temperature-control, indoor positive pressure control, air distribution static pressure control, air-supply temperature control and new air volume control. The dotted lines with arrows mean the output signals from the control unit to actuator, and the solid lines with arrows represent the input signals from the actuator to the control unit.
Study on Dynamic Management System of City Infrastructure Construction Projects Based on Web Technology
Authors: Peng Yan
Published: October 2014

The article analyzes the current situation of city infrastructure construction in China, elaborated needs if our country city infrastructure construction projects in various stages of information management, a framework of information platform are presented for city infrastructure projects of our construction comprehensive control, and efficient management city infrastructure construction project, and provide collaboration platform for the party in the infrastructure construction projects.
Research on the Process and Application of ERP System in Enterprise Accounting
Authors: Zeng Yi , Li Yi Heng
Published: October 2014

This article illustrates the process and accounting business processes in the ERP system that has an integrated that starting with the influence of ERP on enterprise accounting business process. From reengineering the enterprise accounting business process, ERP system meets the needs of enterprise management. Under the influence of this integration system, in recognition of the original enterprise process, we will not remove the value-added activities and then get the accounting process reengineering in SAPR/3 system.
Design and Implementation of Monitoring System for Building Energy Consumption
Authors: Yu Ling
Published: October 2014

This paper analyzes the shortcomings of ECOTECT simulation software, puts forward the real-time energy consumption monitoring software. According to the structural characteristics of large public buildings, the paper proposes the key technology development and the functions of the software platform, and provides RS485 communication code. The research results in this paper have some practical value on energy consumption of large-scale construction monitoring.
Design and Implementation of the Platform for Multimedia Resource Sharing Based on Cloud Technology
Authors: Yang Ling , Zi Xing Biao
Published: October 2014

This paper first reviews the current state of multimedia teaching resource sharing in China as well as the problems encountered. It then proceeds to the focus that a good way out for the dilemma is to design a platform of multimedia teaching resource sharing based on cloud service concept.
Research on City Rapid Medical Decision System Based on GIS
Authors: Wang Kui Ying , Hou Kai Wen , Wang Yun Gui
Published: October 2014

In order to guarantee the validity of the city emergency rescue, it will need to feedback goods demand and injuries to guide accident emergency rescue center in a timely, and also we need to fully grasp with emergency supplies and emergency hospital. Considering the effectiveness of city emergency rescue and timeliness, the paper analyzes and design Rescue Decision Support System for city distribution of emergency supplies and search of wounded man based on GIS. Emergency medical aid model established in this paper, taking ArcGIS+VS2005 as the development platform, C# as development language, design and development the preliminary city emergency medical rescue simulation system based on GIS.
Research on Real Time Acquisition and Control Technology of Mine Excavation Surface Temperature Based on the Technology of the Internet of Things
Authors: Lan Ru Bo
Published: October 2014

The Internet of things technology plays a very important role in coal mine monitoring work. To achieve convergence ground technical management personnel and coal mine production in the extensive application of the Internet of things technology, it can effectively improve the monitoring capacity of all aspects of the coal mine, the monitoring content and low false zero false negative. To ensure the safe and efficient production of the coal mine enterprises, this paper will make discussion and research from the network technology in the local temperature mine tunnel real-time acquisition and control technology.