bluuebunny/crossref_metadata_2025 huggingface dataset:
An Approach to Group Making Problems Based on Two-Tuple Linguistic Theory
Authors: Wei Jun , Zhong Xiao Jun , Gong Jun
Published: January 2014

The group decision-making is a new way recent years in the world which is based on the analysis of linguistic information.A method for this kind of group problems based on two-tuple linguistic theory is proposed in this paper.First,the method transforms initial linguistic information into group judgement matrix,and then give the select process of optimal alternative based on an operator.Finally,a numerical example is given to illustrate the validity of the proposed method.
The Analysis of the Evolution of the Supply Chain and the Corresponding Supply Chain Contract Model
Authors: Zhou Jing , Wang Yong
Published: January 2014

Accompanied by the development of information technology and the impact of economic globalization, e-commerce has developed rapidly, has impacted the traditional supply chain. The E-supply chain emerged. This article described the evolution of the supply chain, analysis of the characteristics of the traditional supply chain and the E-supply chain, and the corresponding typical supply chain contract model of evolution.
A Practical Approach Based on Shape from Shading and Fast Marching for 3D Geometry Recovery under Oblique Illumination
Authors: Governi Lapo , Furferi Rocco , Puggelli Luca , Volpe Yary
Published: January 2014

Design of new industrial objects characterized by high stylistic content often starts from sketches or images of the product to be, subsequently, represented in a 3D digital form by using CAD software. To speed up this phase, a number of methods for automatic or semi-automatic translation of sketches or images into a 3D model have been devised all over the world also for reverse engineering purposes. When the image shading is a crucial information for recovering the final 3D shape, Fast Marching is recognized to be among the best method to date, especially for frontally illuminated scenes. Unfortunately, such a method cannot be directly applied when object illumination in the considered image is oblique. The present work is aimed to propose a simple, but effective, approach for recovering 3D shape of objects starting from single side illuminated scenes i.e. for solving non-eikonal SFS problems. Tested against a set of case studies, the method proved its effectiveness.
Rapid Design of Powertrain in Wheeled Combine Harvester Chassis Based on Knowledge
Authors: Li Chang Lin , Yin Shi Chen , Jin Xiao Pin , Mao En Rong , Lou Xiu Hua , Song Zheng He
Published: January 2014

In order to integrate design resources of powertrain in wheeled combine harvester chassis, and improve its design quality, the process and methods of constructing a design platform for the powertrain in wheeled combine harvester chassis is presented in this paper. Based on the characteristics of the specific knowledge of powertrains design, this paper discourses methods of knowledge gathering, sorting, classification and presentation. Meanwhile, how to use Oracle database to store design knowledge also been discussed. According to the features of different parts, using method of parametric model constructing based on Pro/E, a set of parametric models of powertrain is built. After the forming of knowledge base, the reasoning mechanism is studied. Taking Visual Studio 2008, Oracle, Pro/E as major development means, the design platform of the powertrain in wheeled combine harvester chassis is finally established.
Research on Recognition of Fertilized Egg Based on Optimized LVQ by Genetic Algorithm
Authors: Yang Jian , Xia Chun Yan , Li Xiu Ying , Pan He , Shi Ying
Published: January 2014

In order to detect fertilized eggs nondestructively to improve hatching rate, this paper uses the method of image processing and Learning Vector Quantization neural network to identify fertilized eggs. Firstly, we use image collection device to collect images of the unfertilized and fertilized eggs and extract the feature of egg image, and then determine 5 principal component characteristics of the egg shape. Learning vector quantization neural networkis 5 dimensional input and 1 dimensional outputs.Finally,we use Genetic Algorithm to optimize the weights and threshold of neural network, which can be used to predict the condition of fertilization. The experiment shows that, compared with the traditional LVQ neural network, it is more accurate to recognize the fertilized eggs when using optimized LVQ neural network by genetic algorithm. The rate can reach 98.21%, which meets therequirements of recognizing fertilized eggs.
Two Sharp Perturbed Midpoint Inequalities
Authors: Shi Yan Xia , Tao Yu Min , Pan Yu
Published: January 2014

In this study, two new sharp perturbed midpoint inequalities are proved by establishing proper kernel functions. These results enlarge applicability of the corresponding quadrature rules with respect to the obtained error bounds. Applications in numerical integration are also given.
Artificial Immune Systems Applied to the Analysis of Structural Integrity of a Building
Authors: Parra dos Anjos Lima Fernando , Chavarette Fábio Roberto , Silva Frutuoso de Souza Simone , dos Santos e Souza Adriano , Martins Lopes Mara Lúcia
Published: January 2014

This paper presents the application of artificial immune systems for analysis of the structural integrity of a building. Inspired by a biological process, it uses the negative selection algorithm to perform the identification and characterization of structural failure. This paper presents the application of artificial immune systems for analysis of the structural integrity of a building. Inspired by a biological process, it uses the negative selection algorithm to perform the identification and characterization of structural failure. This methodology can assist professionals in the inspection of mechanical and civil structures, to identify and characterize flaws, in order to perform preventative maintenance to ensure the integrity of the structure and decision-making. In order to evaluate the methodology was made modeling a two-story building and several situations were simulated (base-line condition and improper conditions), yielding a database of signs, which were used as input data for the negative selection algorithm. The results obtained by the present method efficiency, robustness and accuracy.
Preliminary Study on Mine Safety Audit Evaluation Index System
Authors: Wang Shu Ming , Xu Juan , Liu Xiao Fei
Published: January 2014

T Developing a suitable mining safety audition index evaluation system for China that can reflect mining safety production characteristics has great significance to evaluate safety production conditions correctly. The architectural development of mining safety audition index evaluation system should follow the principles of importance, responsibilities, conciseness, relativity, dynamics and territoriality. Development of mining safety audition index evaluation system should refer to the index system positioning and evaluation weighing allocation under these principles. The indexing system should correspond to the main contents of mining safety audition.
GC-MS Analyzing of Coal Tar of Lignite Briquette from Low Temperature Pyrolysis
Authors: Cui Xin Tao , Zhang Yong Fa , Dong Dong Liu , Zhao Yu Qiong
Published: January 2014

Distillation and GC-MS were employed to analysis the coal tar of low-temperature pyrolysis of lignite briquette by contrasting with standards: the fraction below 340°C in the tar distillates of brown coal tar accounted for 83.30% and the other greater than 340°C is pitch accounted for 16.32%. 34.00% of coal tar are hydrocarbons which are mainly consisted of fat aliphatic hydrocarbon and include few alkene and cycloparaffins. The content of phenolic compounds in coal tar, mainly comes from the fraction below 210°C, is 11.68%. 16.86% of coal tar is aromatic compounds which are mainly composed of substitutive derivative of polyalkylbenzene distributing in all kinds of fractions; and a small amount of aromatic compounds which is concentrated in the fraction below 300°C. The content of oxygen-containing, nitrogen-containing and heterocyclic compounds is 4.47%, 0.57%, 2.11%, respectively.
Associative Behaviors of a Novel Series of Amphiphilic Statistical Tripolymers
Authors: Wu Xu , Xiao Hong Hua , Wang Ji Juan , Xie Xiao Xuan , Lin Jia Wei , Rong Xiao Min
Published: January 2014

A novel series of brush-like amphiphilic statistical tripolymers were designed and prepared by polymerization of amphiphilic macromonomer 2-(acrylamido)-dodecane sulfonic acid (AMC12S, 10 to 90 mol %), with hindrance units sodium p-styrenesulfonate (SSS, 0 to 5 mol %), and 2-(acrylamido)- 2-methylpro-panesulfonic acid (AMPS). The self-assembly behaviors of these tripolymers were investigated using steady-state fluorescence, and the increase of amphiphilic units results in a decrease of microdomain polarity and polymer concentrations for assembly, while the increase of hindrance units leads little change of microdomain polarity.
The Higher Order Crack Tip Fields for Anti-Plane Crack in Functionally Graded Piezoelectric Materials
Authors: Dai Yao , Chong Xiao , Li Shi Min
Published: January 2014

The anti-plane crack problem is studied in functionally graded piezoelectric materials (FGPMs). The material properties of the FGPMs are assumed to be the exponential function of y. The crack is electrically impermeable and loaded by anti-plane shear tractions and in-plane electric displacements. Similar to the Williams solution of homogeneous material, the high order asymptotic fields are obtained by the method of asymptotic expansion. This investigation possesses fundamental significance as Williams solution.
The Consistency between MLP Method and Modified Method of Multiple Scales for Strong Nonlinear Primary Resonance of Duffing Equation Subject to Harmonic Excitation in Complex Number Field
Authors: Yang Zhi’an , Li Xi , Meng Jia Jia
Published: January 2014

With changing strong nonlinear Duffing equation subject to harmonic excitation with damping in complex number field as an object, the amplitude frequency response equation of primary resonance of the system is obtained through parametric transformation with application of MLP method and modified method of multiple scales. In different approximation solution forms and different time scales, the two methods lead to the same amplitude frequency response equation. Thus, the two methods are mutually verifiable. Numerical analysis shows that for the strong nonlinear Duffing equation with damping in complex number field, the nonlinear stiffness coefficient is more than zero and the amplitude frequency response curve of primary resonance leans to the left, which is different from the weak nonlinear Duffing equation.Chinese books catalog: O321
Application of Cationic Cassava Dregs as a Retention and Drainage Aid in Wet-End System
Authors: Liu Wen Jing , Wu Shu Bin
Published: January 2014

Cassava dregs contain nearly 38.41% of starch, which has a similar structure to that of a starch. It was found that the cassava dregs would have the same function as the cationic starch if cationic groups were introduced. In this study, cationic cassava dregs were synthesized with the laboratory methods and characterized by FT-IR. The factors affect the retention and drainage was investigated. The result showed that, at a dosage of 1.0% of the cationic cassava dregs, the retention of fines was higher than 90%, best flocculation efficiency occurred at pH 8.5 when the dosage of cationic cassava dregs was 1.5%. Cationic cassava dregs had good resistance against moderate shear force, less affected by the conductivity, and it also showed a good strength properties.
Electrochemical Performance Study of LiFePO4 Cathode Material with Different Carbon Coating Contents
Authors: Yang Xin Rong , Gu Da Ming , Gu Shuo , Sui Xu Lei
Published: January 2014

The co-precipitation method synthesized LiFePO4/C composite cathode material combined with high temperature carbonization, the amount of carbon source added was characterized by XRD, SEM and other physical tests, as well as its electrochemical properties. The results show that the amount of carbon-coated has a certain influence on the properties of the materials. Which carbon-coated contents of 60% from the first discharge the specific capacity can reach 150.77mAh/g in the discharge rate of 0.1C, and has a retention rate of 90.74% in the discharge of 1C, which has to meet the needs of practical application .
Study on the Failure Analysis Method of the Woven Composite Based on the Micro-Structural Character
Authors: Wei Da Sheng , Shen Ming , Wang Yan Rong
Published: January 2014

Based on the micro-structure, a mosaic model was established to obtain the stresses distribution of the C/C composite beam subjected to bending load. Then a subroutine for failure analysis was introduced to calculate the failure index of the composite beam. A corresponding laminate model was used to validate the calculation of the mosaic model. The results indicated that the method combining micro stresses and macro failure criterion was suitable for strength analysis of composite structure, which could be used in guiding the design of composite.
The Simulation and Analysis of the New Type Large Vacuum Container Flange Welding Process
Authors: Liu Bo Tao , Qi Yan , Han Xiao , Lv Shi Zeng , Wang Guo Feng
Published: January 2014

Flange is the key part of the large vacuum container and its stiffness property affects the sealing effect and the stability of the container. Large flange welding process will have a greater impact on its structural strength. In view of the traditional way of forming large vacuum container flange has problems that processing and manufacturing are difficult, more material consumption, and poor stiffness, a new type of flange structure was support. The new design has hollow structure and the welding process of cover flange was simulated through the finite element method. After that, the stress and the deformation were analyzed and then the proper welding scheme was optimized.
The Improvement of Machining Accuracy on Quartz and Glasses by Electrochemical Discharge Machining
Authors: Hourng L.W. , Lin C.I. , Lee B.G.
Published: January 2014

In the present study, a tungsten rod with diameter of 100μm is used as the tool to drill a quartz plate by Electrochemical Discharge Machining (ECDM). KOH solution mixed with different concentration of Ethanol is used as the electrolyte. The influences of different working parameters, such as electrolyte concentration, applied voltage, pulse frequency, and electrolyte level, on the gas film stability, gas film thickness, and machining accuracy are investigated.
The experimental results show that the overcut and surface roughness is improved by the use of electrolyte with addition of 6.5wt% ethanol. The effect of gaseous bubbles is reduced during the machining, and the circulation of electrolyte is better. Compared with machining with pure KOH electrolyte, the overcut is reduced around 57% by the use of electrolyte with addition of 6.5wt% ethanol. The heat-effected zone on the machining is also largely reduced.
Generalized Theory of Thermo-Acoustic Emission from Nanocrystalline Porous Silicon
Authors: Wang Yan Dong , Hu Han Ping , Wang Dong Dong
Published: January 2014

In this work, a general expression of the thermo-acoustic (TA) emission from nanocrystalline porous silicon (nc-PS) is derived by using a fully thermally-mechanically coupled multilayer TA model. This expression takes thermal, mechanical, and geometry properties of every layer in a multilayer structure, as well as the thermal contact resistances between layers into consideration and hence agrees well with the experimental results. Therefore, many fundamental problems in thermally induced ultrasonic emission from nanoporous silicon can be studied.
The Anti-Influenza Activity of Cyclohexene Derivatives Studied by Topological Indices and Neural Network
Authors: Zhuang Wen Chang , Du Xi Hua , Feng Chang Jun , Li Jing
Published: January 2014

In order to establish quantitative structure-activity relationship (QSAR) model of cyclohexene derivatives as neuraminidase inhibitors, the relationships between the anti-influenza activity of 34 cyclohexene derivatives and their molecular connectivity indices (mX) as well as their electrotopological state indices (Im) were analyzed, meanwhile molecular structures of the substances were also effectively characterized. On the one hand, two molecular connectivity 0X, 3X and four electrotopological state indices I1, I3, I6, I16, which were obtained by optimization of multiple linear stepwise regression, were employed to found QSAR model through stepwise regression analysis, where the correlation coefficient of equation was 0.906 and the average absolute error between experimental values and estimates was 0.37. On the other hand, Using these structural parameters above as the input neurons, a satisfying neural network model with the 6-2-1 network architecture was also constructed by the back-propagation (BP) algorithm, where the total correlation coefficient reached up to 0.966 and the average absolute error between experimental values and estimates of the model decreased to 0.19. Therefore it was concluded that the results of BP network were better than those of multiple linear regression methods.
Resonance Reliability Analysis of Aeroengine Compressor Rotor Blade
Authors: Gao Hai Feng , Bai Guang Chen
Published: January 2014

To describe the frequency distribution of the rotor blades and improve the optimization, resonance reliability of the rotor blades was analyzed in this paper. Considering the variety of rand-om variables, we jointly used finite element method and response surface method. The Campbell diagram was set up to describe blade resonance by analyzing the compressor rotor blade vibration characteristics. For the second-order vibration failure of the rotor blade, we considered the impact of random variables with the rotor blade material, the blade dimension and the rotor speed. The pro-bability distribution and allowable reliability of the second-order vibration frequency was calculated, and the sensitivity of the random variables influencing vibration frequency was completed. The res-ults show that the resonance reliability with the confidence level 0.95 of the rotor blade are = 0.99753 with the excited order =4 and =0.99767 with the excited order =5,and basically ag-ree with the design requirements when the rotor speed =9916.2, and the factors mainly affe-cting the distribution of the second-order vibration frequency of the blades include elastic modulus, density and the rotor speed, with the sensitivity probabilities 35.09%,34.56% and 24.15% respecti-vely.
Optimizing Experimental Variables to Enhance the Biodegradability of Polylactic Acid
Authors: Wang Shu Wen , Su Te Li
Published: January 2014

Polylactic acid (PLA), the biodegradable materials, mainly using biobase as raw materials, is the biodegradable polyester manufactured with fermentation and chemical synthesis, or polymerization of monomers from petrochemical products. The polymer usually made with the renewable resources, such as microorganism, plants and animals, will be decomposed into water and carbon dioxide if the natural landfill or compost environment has sufficient moisture, temperature, oxygen and suitable microorganism. Therefore, this paper aims to improve the hydrolysis rate of the PLA during the whole decomposition process and to increase the decomposition rate of PLA in the natural environment. In this paper, Taguchi method was used for the parameter design of PLA hydrolysis and focusing on choosing the conditions that would affect PLA hydrolysis as control factors, for example, temperature, bacteria, ventilation degree and nutrient. Meanwhile, the experiment was conducted with L8 orthogonal array and analysis of variance to find out the significant factor and the optimal conditions of PLA hydrolysis. We found the temperature and bacteria are signify factors by the variance. Lastly, confirmation experiments verified the reproducibility of this experiment. Confirmed by the experiments, results showed that the obtained SN ratios were greater than the rate of eight PLA hydrolysis experiments and this means the experiment is reliable.
Study on By-Product Synergy and Eco-Industrial Parks in China Based on American Experience
Authors: Liu Guang Fu , Ma Yue Ting
Published: January 2014

The area of By-Product Synergy (BPS) has been enjoying particular success since it was initially developed, especially in America. This paper analyzes the model of BPS in America, including the material flow, information flow, collaborate network and the role of the participants etc. In China, BPS and Industrial Symbiosis activities are being implemented through the idea of the circular economy, and faced with many problems. Based on the analysis of America BPS, this paper proposes a framework for EIP implementation and several suggestions for China.
Study on Protection and Development in Beijing Labagoumen Natural Reserve by GIS
Authors: Li Zhao Yang , Guo Hong , Wang Jing , Bai Hui Fang , Shi Jin Lian
Published: January 2014

Nature Reserve takes an important part both biodiversity conservation and community economic development. But its concentric circular zoning has been a conflict to its biodiversity conservation and community economic development. Taking Beijing Labagoumen Nature Reserve as studying area, multi-data resource as Digital Elevation Model and geo-spatial data, also spatial analyst technology including GIS and RS, which make expert knowledge related to spatial raster to express spatial rasters importance according its eco-attribute. As an attempt, three and four level of eco-evaluation in this nature reserve was got through multi-layer raster map algebra operation based on Multi-factor Weighted Model by using spatial analyst module of ArcGis9.x released by ESRI.
The Research of Key Factors Influencing Ecological Civilization Consciousness of College Students Based on Ant Colony Clustering Algorithm
Authors: Xing Wen Jiao , Zhang Xue Hua , Zhang Hong Wei
Published: January 2014

Ecological civilization construction is related to not only peoples well-being, but also the long term plan of a countrys development and revitalization. This research applied ant colony clustering algorithm to study the feasibility and key factors of ecological civilization promotion in the college students It is the first time that quantitative method was introduced into the human consciousness research. The results show that college students have known the situation of resources and environmental problems well, which is a advantage for the promotion of ecological civilization concept. However, the role that colleges play in ecological civilization promotion has not performed fully. And above two items are the key factors to promote ecological civilization promotion.
Marine SCR Technology’s Development and Prospects
Authors: Zhou Song , Zhang Chen
Published: January 2014

IMO MARPOL Annex VI has formulated that the content of NOx emissions from ships was limited, that is, by 2016, the NOx emission of low-speed engine will be reduced from 17.0g/kWh to 3.4g/kWh. For diesel engines, internal control measures can no longer be used to meet the increasingly stringent emissions regulations, emission after treatment technologies must be applied to achieve the purpose of reducing NOx emissions. Emission after-treatment technology which is currently accepted is SCR technology. This articles introduces the principle of SCR system operation, development status and some issues to be resolved.
Discussion on Ship Exhaust Gas Washing Desulfurization Technology
Authors: Wang Zhan Guang , Zhou Song
Published: January 2014

With the continuous development of shipping industry, exhaust gas p-ollution caused by ship emissions of sulfur dioxide is increasingly serious. In o-rder to meet the international maritime organizations (IMO) strict requirements on the water shipping environment, much attention of flue gas desulfurization technology research has been paid. But the ship desulfurization wastewater research is relatively little, water quality analysis and processing system of flue gas desulfurization wastewater research should be carried out. This paper mainly introduces the principle and characteristics of seawater desulfurization process, research and application status of seawater desulfurization method. Discussing the application of sea water desulfurization on the ship for Marine diesel engine tail gas treatment in order to meet the requirements of the international maritime organization and meet the relevant national laws and the main problems to be solved, including the optimal amount of spray, desulfurization tower circulation surface model, installed on the ship. It also points out that the study of sea water desulfurization technique applied in ship's urgency and application prospect.
Comprehensive Evaluation System Research on Agricultural Modernization Based on Principal Component of BP Network
Authors: Zhao Hong Wei , Chen Di , Lv Jie
Published: January 2014

Based on the current situation of agricultural modernization development (AMD) in 14 regions of Liaoning province during 2007 and 2010, a comprehensive evaluation system (PCABP) of AMD was established and comprehensive evaluation of Liaoning AMD was given by PCABP. Moreover, contrast the evaluation results of PCABP, PCA, and BP, getting the evaluation effect of PCA、BP and PCABP are increased respectively. Consequently, PCABP can improve the accuracy and stability significantly instead of the two separate evaluations, which providing a practical new way to evaluate agriculture modernization.
Tolerance Optimization for Assembly Systems Based on Quality Requirements Using State Space Model
Authors: Li Hai , Zhu Hai Ping , Liu Bo Xing , Li Pei Gen
Published: January 2014

The paper proposed a new systematic method to construct the functional relationship between product quality and tolerances. In the method, a unified user-defined tolerance model is designed to synthesize different kinds of tolerances using 3-D state space model; a deviation propagation model is proposed to analyze the quality-tolerance function. Particularly, the method is suitable for any kinds of tolerances and quality requirements. The method is successfully applied to the turbo-generator stator-core lamination auto-assembly project, and Monte Carlo method is used to simulate the quality performance and optimize the target tolerances.
Study on Power Output Parameter Optimization for Biogas Engine
Authors: Dong Xu , Zhang Mian Hao , Chen Li Ping
Published: January 2014

The optimum spark timing, biogas flow rate and excess air ratio are the important factors influencing the power output performance of ignition’s biogas engine. In this study, the biogas flow rates are set as 220, 240 and 260 L/min, respectively. Under each fixed biogas flow rate, it tests different excess air ratios, ranged from 0.8 to 1.2. The experiment results indicate that the optimal parameters are: spark timing(BTDC13), biogas supply rate(260L/min) and excess air ratio(0.95).
Research on the Improved Proportional Navigation Guidance Law Using CADET
Authors: Li Peng Cheng , Yang Suo Chang , Feng De Long
Published: January 2014

This paper mainly talks about the Covariance Analysis Describing Equation Technique (CADET), which is used for the improved proportional guidance law. Firstly, the principle of this method is introduced. Secondly, the related conclusion and validation of Gaussian assumption is analyzed. Thirdly, an improved augmented proportional navigation guidance law (APNG) is analyzed by this method. Finally, the higher guidance accuracy of this improved APNG is demonstrated by stimulated experiments.
Design and Experiment Research of Small-Scale Mountain Alfalfa Seed Drill
Authors: Zhao Chun Hua , Shi Shang Li
Published: January 2014

In order to solve the problems that mountain alfalfas planting does not meet the agronomic requirements and low yield, a small mountain alfalfa seed drill was designed. The width of machine is 1.2m, planting 6 rows, and using shaped hole wheel metering device. Its each line displacement consistency coefficient of variation is 4.09%. Its total displacement stability coefficient of variation is 1.64%.The deviation between the actual seed kernels per in each 10cm trench and the designed value is less than 5%.
Research on Intelligent Steering Wheel Technology Based on Multi Sensor
Authors: Bai Yuan , Tan Xiao Dong
Published: January 2014

At present, the automobile industry is developing rapidly, the private car is widely popularized, and the hidden dangers of traffic safety exist. The phenomenon of drunk driving and fatigue driving becomes more and more serious, and the improvement for steering wheel could effectively prevent traffic accidents. This paper introduces and analyzes the intelligence of steering wheel in three major aspects, they respectively include intelligent grip detection, which tests if a driver is of fatigue driving; hart rate detection, which tests if a driver is in normal driving condition; alcohol detection, which tests if a driver drinks too much, and it predicts the possibility of accident from the drivers state, and timely gives out signal to warn the driver.
The Structure Composition Principles of the Component
Authors: Li Mei , Dong Yan
Published: January 2014

Aim at the characteristics of components made up the machine is able to maintain the assembly relationship, this paper put forward the concept of the component structure, discuss the condition of being a component structure. According to the phenomenon that the component structure can contain more fundamental component structure, Component structure was proposed by one or several structural units with three fundamental principles: Join the components structures into the assembly structure, join the level I components structural units to the assembly structure as the assembly structure, join the level II and above structural units providing independent component structure as the assembly structure. Discuss the component definition and classification of structural Unit, division rules and procedures of the component decomposition.
Research on the Rules of Influence of Austempering Parameters on the Tensile Strength and Elongation of ADI
Authors: Wu Shao Hua , Guo Xu Hong , Shi Gao Lian , Huang Xing
Published: January 2014

select ADI commonly used in engineering, set 15 sets of austempering parameters and research on the rules of their influence on the tensile strength and elongation of ADI. Through the tensile test, use ANSYS Workbench to simulate the process of tensile measurement and compare the experimental data. The results show that: longer austenitizing time leads to smaller tensile strength, whereas the elongation remains unchanged. The tensile strength reduces linearly as the austempering temperature rises while the elongation first increases and then reduces as the austempering temperature rises and peaks at 350°C. The austempering time has little influence on elongation.
Design of a Multi-Functional Medical Bed
Authors: Pan Li Ai , Du Qiu Lei , Wu Yan Li
Published: January 2014

The Multi-functional medical bed has been designed to the patient whose life cant been provided for oneself, critically ill patients, and the special needs of paralyzed patients. In the paper, through market research and according to the structure of existing medical bed, a manual medical bed has been designed; And the bed board, lift back and leg mechanism, defecation device and eat device of the medical bed have been discussed; the feasibility analysis of the motion mechanism has been carried and the basic design parameters of the product have been determined; on the basis, the main structure for medical bed has been carried on the design and calculation. The results showed that function of the medical bed is reliable, the structure is reasonable, and it is in line with the requirements of ergonomics. Especially, some of these institutions have been optimized and replace to use more convenient and quickly.
Design of the Half Toroidal CVT Controller Based on ADRC
Authors: You Zai Yong , Yu De Ping , Li Hua , Yao Jin
Published: January 2014

The system considered in this paper is a half toroidal Continuously Variable Transmission (CVT) system for cars. The existing CVT controllers most adopt to PID to design the controller, but the precision and reliability do not meet the requirements of the CVT well. The ADRC (Auto Disturbances Rejection Controller) technology is able to solve the nonlinear systems whose model is difficult to get and has many uncertain external disturbances. The ADRC in this paper is used to combine with the half toroidal CVT to design a robust, reliable, anti-jamming and feasible controller.
The Comprehension of the Period Check of Lab Instruments
Authors: Zhang Jin Yang
Published: January 2014

In order to maintain the instruments calibration state in the process of use, they shall be carried out the period inspection. From the point of view of practical lab work, this article explains the necessity and usual methods of the test work in lab in the period inspection.
Assembly Process Planning Method for Complex Electromechanical Products
Authors: Sun Bo , Liu Lu
Published: January 2014

Currently, neither the efficiency nor the effectiveness is sufficient in the area of the assemble optimization that commonly involves the genetic algorithm. A novel method to solve the cumbersome problem in the optimization of assembly sequences was proposed. On the basis of the assembly constraint matrix, the optimized assembly sequence is obtained with the proposed evaluating factors of the process requirement. That is the evolution of the original genetic algorithm to a certain extent. The effectiveness of the proposed method was proved by the comparison with the ant colony algorithm.
Study on Total Measuring Effect of Ionizing Irradiation of Schottky Diode
Authors: Han Xiao Wei , Dai Guo Ding
Published: January 2014

Ionizing radiation total measurement response of Schottky Diode were studied, Investigation result shows radiation causes decrement of breakdown reverse voltage and increment of leakage currents. More steps theoretical analysis shows radiation induced new interface state which causes performance degeneration of device, thus changes density distribution of interface state and modules Barrier Height of Schottky Diode.
A Car-Following Model Considering Effects of Weather and Road Conditions
Authors: Jing Lu , Zheng Peng Jun
Published: January 2014

In this paper, a modified car-following model is proposed, in which, the weather and road conditions are taken into account. The stability condition of the model is obtained by using the control theory method. We investigated the property of the model using linear and nonlinear analyses. The Kortewegde Vries equation near the neutral stability line and the modified Kortewegde Vries equation around the critical point are derived by applying the reductive perturbation method. The traffic jam could be thus described by the KdV soliton and the kinkanti-kink soliton for the KdV equation and mKdV equation, respectively. Numerical simulations are carried out to verify the model, and good results are obtained with the new model.
The Case Study for Human Resource Management Research Based on Web Mining and Semantic Analysis
Authors: Zong Hui , Zhu Quan Yin , Sun Ming , Zhang Ya Hong
Published: January 2014

Extracting information from human resource information by using data mining technology in order that preserve and manage. Through java programming technique, the function of Arachnid that traversing the web page and extract web page content can be realized. Segmentation of content based on the technology of Chinese word segmentation machine of Chinese academy of sciences. Extract human resource information based on key word and save it in MySQL database, using the language of python to program the system of human resource information. The system can provide evidence for government decision-making.
Impaction of Travel Behavior and Degree of Business District Prosperity on Shopping
Authors: Liu Ming Wei , Cao Shou Qi , Zhang Li Zhen , Chen Cheng Ming
Published: January 2014

Three Media-Markets located in Shanghai have been studied the research in this area to quantitatively analysis how transportation factors such as travel time, transportation method, distance, cost and the degree of business districts prosperity affect store choice behavior.
Design of Real Estate Price Index System Based on Hedonic Price Method
Authors: Du Yun , Sun Hui Qin , Zhang Su Ying , Tian Qiang
Published: January 2014

Urban real estate price index (hereinafter referred to as UREPI) is a basic data of the real estate market, its accuracy is very important for enterprises, consumers and housing management department. In view of current research level here in China and popular models, the UREPI system is compiled based on the Hedonic price method because of its advantages such as calculation simple and sample easily etc. Compiled by Eviews the system has three main stages: the data standardization, the benchmark model establishment and the application of two periods chained update method to update price series. UREPI system is combined with the real deal, so it can be used to analysis the market accurately. The results completely meet the design requirements.
Effect of Melamine / Urea Modified Phenol Formaldehyde Resin Binder on the Mechanical Properties of Glass-Fiber Felt
Authors: Su Dan , Chen Zhao Feng , Yang Yong , Chen Zhou , Wu Cao
Published: January 2014

The use of melamine / urea modified phenol formaldehyde resin binder in the glass-fiber felt has led to products with lower free formaldehyde, higher water repellency and flexibility. This study gives a detailed description of the influence on the mechanical properties of the glass-fiber using the phenol formaldehyde resin with different levels of melamine and urea. Results show that, the free formaldehyde content reduced with the increase of the amount of urea and melamine, a small molecule of melamine and urea destroy the macromolecular chain of phenol formaldehyde resin leading to the decrease of breaking strength. At the same time, the decrease of the molecular chain is accompanied by the increase of flexibility.
Testing and Stress Analysis of Curing Process of Epoxy Adhesive Coating
Authors: Yu Hai Zhou , You Min , Liu Wen Jun
Published: January 2014

Three groups of strain gauges were embedded in the epoxy adhesive coating deposited on the steel substrate with different depths. The transverse and longitudinal strains during the curing process were tested. It was found that the transverse and longitudinal strains decreased remarkably when the curing time was lower 24h. At a longer curing time, the strains almost kept steady. In addition, the more close to the surface of epoxy adhesive coating, the higher the strains were. The solidification contraction stress in the epoxy adhesive coating during the curing process were also estimated, and the attempts were made to relate them to the restrained contraction of the epoxy adhesive coating.
Stopping Power and Self-Energy for a Fast Proton in Carbon Nanotubes
Authors: Wang Gui Qiu , Wang Yue
Published: January 2014

The channel effects of carbon nanotubes is studied by a fast proton in the framework of linearized hydrodynamic theory. General expressions of induced potential, the self-energy, and the stopping power are obtained for such a charged particle moving paraxially in a carbon nanotube. The influences of the damping factor and the carbon nanotube radius on the stopping power and self-energy are discussed. The results show that the velocity dependences of these quantities are strongly affected by the damping factor and the nanotube radius, the relevant results will be helpful for study of the transport of charged particles through nanotubes.
Modification of Punica Granatum Linne Husk Extract as Eco-Friendly Corrosion Inhibitors in Oil Fields
Authors: Zhang Jie , Zhang Qiang , Chen Gang , Zhao Jing Rui , Tang De Yao
Published: January 2014

The pomegranate husk extract is modified by formaldehyde and diethylamine, the products have been investigated as corrosion inhibitors for Q235A steel used in oil fields. The inhibition efficiency of products have been measured by weight loss method with the concentration range from 10 mg/L to 1,000 mg/L in 1wt% HCl at different temperture. The inhibition efficiency of the modification product shows good inhibition efficiency after modified by formaldehyde and diethylamine, which is up to 89.31% at 60°C. The inhibitory effect of modification products is in accord with Langmuir adsorption equation.
The Effect of Aluminum Content on TiO2 Coated Carbon Fiber Reinforced Magnesium Alloy Composites
Authors: Xia Cun Juan , Wang Ming Liang , Wang Hao Wei , Zhou Cong
Published: January 2014

The interface between the reinforcement and the matrix is significant to metal matrix composites. The effect of aluminum (Al) content on interfacial microstructure and mechanical properties of TiO2coated carbon fiber reinforced magnesium matrix composites by squeeze casting technique have been studied (C/Mg). Mg-2wt%Al and AZ91D were used as alloy matrix. The obtained results indicate that the carbon fibers in both kinds of composites are well protected by TiO2coating, without any interfacial brittle carbide phase observed. The flexural strength of Cf-TiO2/AZ91D (1009MPa) composites is 26.5% lower than that of Cf-TiO2/Mg-2Al (1277MPa) composites. The lath-shaped precipitates of Mg17Al12in AZ91D composites lead to the mechanical properties decrease.
Research Status of Modeling Test on Pile Foundation of Existed Bridge
Authors: Hu Juan , Song Yi Fan , Luo Zuo Long
Published: January 2014

The pile-soil dynamics is an interdisciplinary studies of structural, geotechnical and vibration engineering in the existing bridge. Traffic load model, the developments and status in the existing bridge were reviewed and introduced. The main content and characteristic of pile were summarized in clay, sand, silt and red clay. Main problems existed in the study of cyclic loaders on the piles were discussed. The prospect of future research trend in this field was also examined.
The Analysis of Evolution of Spatial Form of Jilin City
Authors: Sun Hong Tao
Published: January 2014

Jilin is a major city in northern China, and the Special geographical environment and rich history and culture made a profound impact on the evolution of urban form. The urban pattern has common features as other waterfront cities in northern China, and also has its own uniqueness. With the start of analysis of evolution of urban form,this paper divides the development of Jilin City into three phases according time node,and analyzes the form evolution and its causes of each phase,as well as the relationship of the three phases. Finally,the paper presents development direction of spatial pattern of Jilin city based on analysis,and provides reference for the development for cold water cities.
Seismic Damage Analysis on the Continuous Girder Bridge of Urban Rail Transit Line
Authors: Li Hai Qing , Ni Yong Jun , Liu Xin Gang , Yan Jin Xing
Published: January 2014

Seismic damage was the key reason which resulted in the serviceability degradation or collapse of the bridge. How to quantify the seismic damage and evaluate the seismic performance of the bridge under earthquakes through the damage analysis was the significant research direction in the performance based seismic design. In this paper the Park-Ang model (a well-known dual parameters model) and its modification version used for the damage evaluation of the concrete structure were compared. Furthermore, through the definition of the damage indices of the models based on the modified Park-Ang model and the descending slope of the IDA(incremental dynamic analysis) curve, the seismic damage levels of the typical bridge in the urban rail transit line under the designated earthquakes were analyzed, respectively. It was shown from the results that the calculated results from the two model was essentially consistent. The damage analysis based evaluation method was feasibly used for the seismic performance evaluation of the bridge.
A Study on Carbonization Performance of Concrete by Freeze-Thaw Action in Ningxia
Authors: Xia Guo Ping
Published: January 2014

In this paper, the effect of carbonization performance of concrete by freeze-thaw action in Ningxia Hui Autonomous Region have been studied. Based on the concrete carbonation depth prediction model modified, the effects of the carbonation depth of concrete by freeze-thaw action with dry weather in Yinchuan and Yanchi County are studied. These influential factor include water-cement ratio, cement dosage, the air relative humidity, carbon dioxide concentration.
Related Issues on Urban Renewal of Suzhou Old Town
Authors: Dai Ye Zi , Cai Rui Ding
Published: January 2014

The essay gets started from research of current problems of the Suzhou Old Town and tries to propose development ideas of modern renewing of the Old Town by interpreting the habitat quality, environment, heritage protection and other aspects. At the same time, it provides possible directions and useful lessons for the future renewing and developing of the Old Town with assistant of analysis of domestic and foreign related cases and theoretical technical means.
Research of a New Type of Solar Cell Materials
Authors: Li Hao Hua , Wang You Hua , Zhu Dun Yu
Published: January 2014

Solar energy is the inexhaustible,enewable Energy. The solar cell is the solar light energy into electricity. The unique advantages of solar cell. Potential, more than wind, hydro, geothermal energy, nuclear energy and other resources, is expected to become the main pillar of power supply in the future. This paper studies that the main parameters of monocrystalline crystal silicon solar battery: the junction depth and superficial concentrations influence on electrical characteristics of monocrystalline silicon solar battery. The result shows that for maximum efficiency, it is bound to get the largest possible open circuit voltage, short circuit current and fill factor of the product, therefore, it is necessary to control these two parameters, the junction depth and doping parameters. If the junction depth is constant, with the increased superficial doping concentration of monocrystalline silicon solar battery, the photoelectric conversion efficiency of the battery increases slowly at first and then rapidly decreases, and the deeper the junction depth is, the more obvious trend of the photoelectric conversion efficiency is.
Experimental Research on Mechancal Performance of Glazed Hollow Bead Lord-Bearing Thermal Insulation Concrete after Carbonization
Authors: Liang Qin , Liu Yuan Zhen , Li Xu
Published: January 2014

It was carried out the test of the basic mechanical properties of lord-bearing thermal insulation concrete specimens before and after carbonization. The results showed that the cubic compression strength, splitting tensile strength and flexural strength of these specimens were all increased with the growth of carbonization age, which provided a test basis for the durability design and analysis of lord-bearing thermal insulation concrete.
The Security of Public Buildings with Central Air-Conditioning System for Terrorism Attacks
Authors: Feng Jin Mei , Wu Zhao Chun , Peng Zhan Ge
Published: January 2014

From the status and future of international terrorism, this paper points out that Chemical, Biological and Radiological (CBR) terrorism attacks have posed severe threat to building environment security. This paper pointed the emergency disposal approaches when public buildings with central air-conditioning were attacked by CBR terrorism. The air-conditioning systems, air volume, air pressure adjustment, the choice of fans and duct size have been discussed. Furthermore, how to use the fire smoke control system to ensure building environment security and the corresponding countermeasures has been analysis.