bluuebunny/crossref_metadata_2025 huggingface dataset:
On Strategy of Sustainable Development of Ancient Village Tourism Resources
Authors: He Jian Bo , Wang Zhen
Published: September 2014

With the development of economy and the improvement of people’s income and living standard, the tourist’s demands for Multi destinations are also increasing. In recent years, ancient village tourism that own traditional characteristics at most is generally considered the most popular form in tourism activities among the tourists. The thesis centers on the main problems which exist on the ancient village tourism resources at present and perform some deep thoughtful analysis. Subsequently, the strategies for the sustainable development of the ancient village tourism resources are constructed in this article.
The Application of Detrended Fluctuation Analysis in Rice Blast in the Early Warning
Authors: Zhao Xin , Huang Fu Yan Hong , Sun Qian , Yu Lian Jun
Published: September 2014

In this paper, the 5-9 months of 2000-2011 temperature and humidity data, used the detrended fluctuation analysis, obtained how the two data series’ non-uniform scaling index changes with time. In order to comprehensive influence of temperature and relative humidity of the two meteorological factors, the temperature and humidity coefficient is introduced. We also proposed a new non-uniform scaling index taking into account the information of temperature and relative humidity, and discusses the possible correlation between temperature and humidity and rice blast. The preliminary results show, A long-range power-law correlation can be found in the time series of temperature and humidity. About 5-15 days before the occurrence of rice blast will appear anomalies of non-uniform scaling index. It reflects the rice blast made a difference of statistical significance to the characteristic of nonlinear system internal of temperature and humidity coefficient. It can predict the occurrence and prevalence of rice blast according to the abnormal changes of temperature and humidity coefficient scaling exponent.
The Design and Analysis of Novel Carbon-Free Vacuum Cleaner
Authors: Zhang Jian Xin , Zhang Zhang E , Zhang Qiang
Published: September 2014

We propose a new concept design about carbon-free vacuum cleaner. The carbon-free vacuum cleaner moves under the act of external forces instead of the motor, and transmits the rotation speed from low to the ideal speed with the gear up box. In order to to verify the reasonableness of the gear up mechanism and weather the designing of the gears meet the demand, we construct the detail assemble model of the gear up mechanism based on pro/e software, and then analyze the gear with the finite element analysis method.
The Application of Virtual Sports Studio in Sports Colleges
Authors: Zhao Jian Bo , Ji Hua Juan , Liao Ben Lu
Published: September 2014

Virtual sports is the product of the interaction between sports’ reality and simulation, and the virtual sports based on electrons orbiting projection screen, camera synchronous tracking and computer-generated rendering has played an important role in scientific research achievements transformation of new and high technology and digital media innovation in the higher sports colleges and universities. This paper analyzes the characteristics of virtual sports and its present application situation , in combination with the actual situation of the construction of laboratory in sports colleges, describing the application solutions of virtual sports from the hardware configuration, software design and process arrangements ,and then put forward new ideas about innovation and development of higher physical laboratory in sports colleges .
Empirical Study on the Capital Composition Impact Factors of the Listed Company in the Growth Enterprise Market in China
Authors: Zhong Xu , Song Xiao Zhong , Fu Ran Ran
Published: September 2014

This paper selected 153 listed companies between 2009 and 2010 in the Growth Enterprise Market (GEM) in China as the sample, and selected the financial data between 2010 and Mar., 2012, by adopting the factor analysis method, multivariate regression analysis method, .etc., to study the key capital composition impact factors of the listed companies in the GEM with asset-liability ratio as the measure index. The study shows that the company capital composition appears obvious negative correlation with profitability, debt paying ability and ownership concentration, while appears obvious positive correlation with company scale, internal financing ability and income tax rate, and appears no obvious correlation with the free cash flow, operation ability, growth ability asset collateral value and growth.
Optimal Allocation of Risk for Portfolios
Authors: Liu Hong Wei , Xiao Cai Bo
Published: September 2014

In this paper, we propose a framework of the optimal risk allocation, under the pareto optimal we give equivalent conditions and provided its representation theorem under Pareto-optimal allocation, Which is an extension of the ones introduced by Ludger Rüschendorf (2006).
The Evaluation and Selection of Upstream Enterprises in Supply Chain
Authors: Dong Li Li
Published: September 2014

The upstream enterprises play an important role in the whole supply chain management, and how to select a better upstream enterprise in the supply chain is studied in this paper. First, the index system for the selection of upstream enterprises is established. Then based on the index system, the evaluation model is discussed based on the thinking of AHP. Finally, the application of the index system and the evaluation algorithm is shown through a case.
The Study on the Model of Vendor Management Inventory in Supply Chain
Authors: Dong Li Li
Published: September 2014

In order to reduce inventory cost effectively, the vendor management inventory (VMI) is studied in this paper. The inventory problem of supply chain is described, the model of VMI is established, and the optimal solution is obtained. The research in this paper can enrich the supply chain management theory, and help enterprises improve inventory management level.
Discussion on the Role of College Teachers under the Network Environment
Authors: Luo Ying , Zhang Xiang Qing
Published: September 2014

With rapid development of network information technology, the application of network teaching mode has been promoted rapidly in higher education, and the status of college teachers in modern teaching has been changed significantly. In the network age, college teachers should realize the transformation of their role and improve their own modern educational and teaching ability as soon as possibly, to meet the requirement of the new situation.
Research on Intelligent ERP System Based on Multi-Agent
Authors: Lv Hong Wei
Published: September 2014

The realization of intelligent ERP system is studied through Agent technology and Jadex software development framework. The concept of intelligent ERP system is proposed in this paper based on Multi-Agent technology. After conducting research on Multi-Agent ERP system model frame, the Multi-Agent ERP model is designed based BDI model. Multi-Agent ERP system model based on Multi-Agent system framework and layers are also given. Finally, take storage management system as an example, storage control Agent is designed and realized on Jadex.
Research on Management of Emergency Material Based on Information Technology
Authors: Zhou Xiao Li
Published: September 2014

In recent years, natural disasters frequently happen in China, so emergency logistics becomes the lifeline to rescue people’s life and property. The management of emergency materials is an important content in emergency logistics management system. Due to the short development time of emergency logistics in China, there are still many problems in emergency material management. In this paper, existing problems and reasons are analyzed, and the purchases, reserve, transportation and distribution are managed and investigated. Meanwhile this paper proposes the relevant development countermeasures.
Study on the Control System of Grinding the Nozzle of Twin Flapper-Nozzle Valve
Authors: Yang Shu Zhen , Qian Rui , Bai Yu Jie
Published: September 2014

In this paper, neural network and grey fuzzy control technology are applied in Abrasive Flow Machining (AFM) to grind the mico-hole in th nozzle of the twin flapper-nozzle valve. An intelligent control system with fine tuning working pressure is established that can predict the process parameters automatically before machining and forcast the flow to adjust the working pressure in machining.The result of experiment indicates that this system has high level of intelligent and can get very high machining accuracy.
Research on Learning in a Digitalized Environment
Authors: Hao Lian Ke
Published: September 2014

The fast development of computer digital technology has brought profound revolution to various fields of human life, so as the learning mode of students, which has turned digitalized and diversified. Digitalized learning applies text, audible pictures, audio, video and some other media materials comprehensively, from which, students can select the content that he or she is interested to study without restrained by time and space, to realize a diversified, multi-level self-development. Due to its characteristics of flexibility, swiftness and strong interaction, digitalized learning is favored by a wide range of learners. This article is about the research on learning mode in digitalized environment which is stated from several aspects, such as the theory foundation, general features, basic mode, and analysis of the main problems.
Development and Implementation of Ship Maintenance Management Spot Inspection Information System
Authors: Feng Lei
Published: September 2014

A engineering ship as the object, This paper analyzed the application of equipment Inspection, and discussed the PDCA management system, developed a set of spot inspection Information system based on the web server application & intelligent mobile terminal application which has the current system better regulated. Introduced the development background, expounded the system structure, functions and technology solutions, and discussed the main functions of the system design scheme.
Analysis about Accounting Computerization and Network
Authors: Rong Yan Li
Published: September 2014

In recent years, application and development of modern information technology, especially network technology in the field of accounting, herald the accounting technical means’ evolvement from accounting computerization into the stage of the network accounting information. The ultimate goal of computerized accounting and accounting network are all to provide accounting information through the combination of accounting and modern information technology, taking accounting basic theory and method, accounting practice theory as the foundation. As the mainstay of the econometric society, the development of accounting marks the progress of social civilization and the economic management.
Research of Mobile System Based on J2ME and Web
Authors: Gong Hui Ying , Zhao Wei Hong , Li Ying
Published: September 2014

It is studied that using the application of J2ME and Web technology is quite proper for the English mobile teaching design on movable equipment. The design goals and the overall framework of the system that need to achieve the user's learning requirements is related according to the English teaching system in the paper. It has been provided an advanced method and colorful education environment to improve English learning.
Research on the Application of Power Enterprises' SCMM Model Based on Sets-Valued
Authors: Deng Ya Qing , Wang Hai Song , Liu Jian Qing
Published: September 2014

With the market competition increasing of power enterprises, strengthen the supply chain management become more and more important. It has an important guiding significance to enhance the level and effect of supply chain management that study the issue of supply chain management and evaluation by using supply chain management maturity (SCMM). This paper makes a combination of supply chain management methods and the particularity of power enterprises, and using the theory of SCMM, to build a SCMM level evaluation system from three aspects of logistics, information flow and capital flow. On this basis, we use a method that combines set-valued statistics with triangular fuzzy number Lo evaluate. Finally, it proves that the SCMM level evaluation system is scientific and rational through examples study.
The Research on the Construction of Experience Accumulating and Sharing Platform for Vocational Colleges
Authors: Cui Wei
Published: September 2014

All the work in vocational colleges will produce a great deal of experiential knowledge. The traditional form in which information is stored in paper documents and shared in offline exchange patterns has low efficiency with a small extended range. Based on analyzing the research status of experience accumulating and sharing platforms as well as merits and demerits of traditional experience accumulating and sharing means, this paper has studied the construction method of experience accumulating and sharing platform for vocational colleges, and presents a solution to the problems such as the construction of the platform logical structure, the storage and retrieval of experiential resources, and the uniform presentation of resource files.
Study on Contaminated Site Risk Classification Based on the Set Theory
Authors: Wu Dan , Chen You Yuan , Li Jin Jun
Published: September 2014

The risk assessment process of city contaminated sites is full of uncertainties, objective randomness of system, incompleteness selected evaluation factors and accuracy of monitoring data are easy to result in distortion from this process, so it can not reflect the actual risk situation objectively. After considering the potential ecological risk and human health risks from site contamination synthetically, in this paper, we use the hierarchical evaluation index for dividing the risk level of contaminated site, identified the weights of each layer from every indicators by Analytic Hierarchy Process (AHP).And used the fuzzy clustering to establish the evaluation index set, at the same time, we quantified the evaluation index, the risk level of contaminated sites is divided into low, medium, heavy, heavier and serious according to the value of comprehensive evaluation index, constructed a set of site contamination risk analysis model based on uncertain information .
LCA of the Clean Air Conditioning System in Pharmaceutical Industry
Authors: Li Xin , Jia Rui Ying , Hou Jia Jia
Published: September 2014

In this paper, the air conditioning system in pharmaceutical industry throughout the life cycle energy efficiency had been evaluated according to the SETAC and ISO had put forward the idea of "life cycle assessment. The purpose was to adopt reasonable measures of energy saving technology to minimum the energy consumption to the clean air conditioning system and minimal impact on the environment load. At the same time, the economy was reasonable. Clean air conditioning wind system in a pharmaceutical factory was been as an example. The energy saving renovation of clean air conditioning system and the effect of energy saving renovation were analyzed. CO2 emissions were analyzed in its life cycle stage which provided a reference for other engineering.
The Drill System Respond to Subway Emergency Based on Scenario Analysis
Authors: Zhen Hui , Cai Guo Qiang
Published: September 2014

In order to deal with subway emergency, the paper builds the emergency drill system based on scenario analysis for the security of persons and property within the subway. By participating in the drill system, make sure that units and division involved in the rescue and command system learn their responsibilities by heart under emergency, enhancing collaboration of various departments, improving the efficiency of emergency rescue, thus the rescue can be conducted orderly. This paper introduces the concept of subway emergency, emergency management and organization and the drill system.
The Contrastive Analysis of Bending Strength Computing Methods of Concrete Filled Steel Tube Member
Authors: Gao Kun Peng , Li Yang , Chen Bing Hui , Qi Lu Lu
Published: September 2014

Three bending strength computing methods of concrete filled steel tube are introduced, including empirical formula method, whole section yield method and simplify numerical method. There are some difference on their computing results. To verify their difference, single factor analysis method is used. The single factor include the thickness of steel tube, the strength of concrete and the strength of steel. The revised results of ABAQUS are used as a benchmark. The analysis include two aspects, one from the changing trends of ABAQUS’ results and the three method’ results when only one factor is increasing, the other from the magnitude of relative error between the results of ABAQUS and the results of every method. Finally, the scope of every method is obtained.
Lightweighting and Anticorrosion Design for Beach Cleaner
Authors: Xie Peng Peng , Ge Xiao Hong , Ouyang Lian Ge
Published: September 2014

The first generation beach cleaner SWQ18 is mainly made of carbon steel and the unloaded weight is heavy. In the beach test, it occurred such problems as a high fuel consumption and the wheels tend to sink in sand. From the perspective of lightweight material, based on RADIOSS Finite Element Analysis (FEA) module in Hyperworks, the auto-body’s FE model was built. By setting the material as 6061 aluminium alloy and analyzing its body stress and modal, considered the problems that how the aluminium alloy resist the corrosion from the sea atmosphere and its stiffness and strength as well, the result shows that 6061 satisfies the operating requirements and is applicable to the beach cleaner body and a feasible lightweighting scheme taking cost and performance in account was reached.
Software Anti-Interference Design of SCM Control System
Authors: Ji Ling
Published: September 2014

SCM control system requires high reliability and security, the entire control system to operate safely and reliably only when a strong anti-interference capability. In switch input and output, the use of the instruction redundancy methods to achieve the switch signal input and output filtering; in data collection, based on the hardware anti-interference taken arithmetic average filtering method, in order to strengthen its anti-jamming capability. In the system status monitoring, watchdog feature is enabled with the MSP430F449 microcontroller, when the watchdog timer overflows, the system automatically reset, the experiment proved that this method can save hardware resources, flexible design, low cost, single-chip control, it can guarantee the smooth operation of the system.
Design of a Kind of Minitype Shallow Water Power Underwater Vehicle
Authors: Wang Yong Ding , Wang Pei Cheng
Published: September 2014

In view of the present equipment is lack in shallow water such as agricultural fishery environment, the designing as well as the performance parameters of a type of low-cost and multifunctional minitype underwater vehicle are provided. The contour of the vehicle is optimized. and the modular designing is achieved according to five aspects which involve controlling, propulsive force, hovering, snorkeling and additional function. Through the analysis of trial voyage experiments, some simulation software are made, and therefore the requirements of overall performance are satisfied.
Numerical Simulation of Generator Air Duct Based on CFD Approach
Authors: Chen Hui , Zhang Yu Lin , Shi Ming Quan , Chen Qing Hua
Published: September 2014

Ventilation calculation is one of the important contents of generator design. Most researcher studies only on partial components or make important details simplified. They can’t accurately analyze the internal heat dissipation. In this paper the flow field was analyzed for a generator by CFD approach, using the package surface technology in order to keep the geometric characteristics. Based on the results of the analysis to improve its cooling duct. Before and after simulation results were contrasted, Cylinder head velocity distribution increases from 0.1-0.2m/s to 1-4m/s, Silencer, motor and cylinder head average heat transfer coefficient increased respectively by 78.2%, 116.4% and 604.7%, Flux on outlet1 is increased by 13.8%, The improved model cooling effect was significantly higher than the pre model. Research on the generator duct design has important reference value.
Screw Conveyor Design and Discrete Element Simulation Analysis of the Rice Mill
Authors: Shi Yan Hua , Zhang Guo Quan , Zhang Ning , Huang Zhi Ping
Published: September 2014

During the rice mill structural design process, static analysis is an extremely important field, not only decide to what the structure size is, but also for the subsequent fatigue analysis, providing the basis for the overall stability analysis. In this paper, vertical screw conveyor vertical rice mill, rice discrete element analysis simulation under different speed, the internal movement of materials to simulate the process for improving the productivity of the vertical screw conveyor has a certain significance. Providing an important basis for further design optimization of the rice mill structure.
Buoyancy Control for Low-Speed Under-Actuated AUVs
Authors: Ye Yu Ling
Published: September 2014

An engineering buoyancy control scheme was proposed to compensate the change of residual buoyancy for low-speed under-actuated AUVs. The buoyancy control system is made up of buoyancy controller and two sets of buoyancy control devices include: water tank, sea water pump, valve grouping, pipeline etc. Buoyancy control devices were configured to both head and tail part of the AUV symmetrical to its buoyant center. Depth control algorithm and buoyancy control algorithm were proposed separately. In the process of voyage at a constant depth, the real time speed, pitch angle and depth error were detected to evaluate the residual buoyancy indirectly, and then the real time buoyancy control was executed by pumping the water into or out of the tanks. The buoyancy control scheme was applied to the type of low-speed under-actuated AUV and simulation and experiments results show that the buoyancy control approach and the control laws are feasible and effective.
The Design of a Voice Control System for Smart House
Authors: Zhang Wei , Liu Yu Huai
Published: September 2014

A method to design a voice control system for smart house is proposed and implemented. Since smart house has the characteristics of low power consumption, low cost and easy operability, ZigBee technology is adopted as a wireless network standard and CC2530 is selected as a sensor node. In the designed system, electric appliances can be controlled by voice.
Model and Dynamic Characteristics of Electromagnetic Split Clutch for Hydraulic Power Steering Application
Authors: Tang Bin , Jiang Hao Bin , Geng Guo Qing
Published: September 2014

In order to improve bus drivers’ high-speed road feel and reduce parasitic loss of hydraulic power steering system (HPS), a novel power steering system is proposed, which is characterized by an electromagnetic slip clutch (ESC) which regulates discharge flow of steering pump to realize variable assist characteristics as well as uniquely transfers on-demand power from ICE to steering pump. The mathematic model of ESC including flux linkage equations, voltage equations, electromagnetic torque equation and kinematic equations under synchronous rotating coordinate system (d-q coordinate) is constructed. Dynamic characteristic, mechanical characteristic, input-output characteristic and excited current-output speed characteristic of ESC are simulated. Finally, the experiment of ESC is implemented. The consistence of simulation results and experiment results indicate correctness and precision of the model.
Subjective Evaluation of Braking System and Dynamics Analysis
Authors: Guan Hsin , Duan Chun Guang , Lu Ping Ping
Published: September 2014

Subjective evaluation of the braking based on the people's feelings. When braking, the response of vehicle and the convenience of brake determines the driving safety and comfort. Research major vehicle company's subjective evaluation of braking system, and summarize large numbers of projects into tactile indicators, somatosensory indicators, and braking performance three evaluation projects in accordance with the people's subjective feelings. Through sorting, the loads of evaluation can be reduced when evaluation for subjective driver. To analysis of typical index by dynamics methods to find the reasons of negative phenomena, so provides the design basis of the brake system for meet the subjective feelings.
The Vibration Characteristic Research of the Transmission System of the Rolling Mill Based on Absolute Node Coordinates
Authors: Xu Hai , Shang De Guang , Li Sheng Yong , Gao Li Xin
Published: September 2014

In order to simulation the vibration characteristics of the transmission system of the rolling mill in Engineering. To determine the cause of the door threshold of rolling mill vibration damage, source the vibration of rolling mill. This article from the perspective of multi body dynamics, Use the rigid flexible coupling dynamic model, fully considered of the time-varying mesh stiffness of the gears, backlash, speed and other factors. Simulation the vibration characteristics of the transmission system of the rolling mill in different tooth side clearance and different speed. The result show that, with the increasing of the backlash, the vibration amplitude of the output shaft increase first and then decrease and then increase. Motion state by no impact to unilateral shock, bilateral impact and then enters to a chaotic state finally to no impact. Through dynamics simulation, can draw the vibration characteristics in different tooth side clearance and different speed of the transmission system of the rolling mill, the theory basis for the fault diagnosis of the transmission system of the rolling mill.
A Design of Broadcast Transmitter Control System
Authors: Dang Hong She , Xie Chen , Gao Sai Sai
Published: September 2014

According to actual control requirements, broadcast transmitter control system is designed with PLC as the core controller. The system hardware design is described and the software design is introduced in detail based on integrated development environment. Transmitter control system functions are realized. And the system can not only meet all the control requirements, but also has a powerful remote control ability and human-computer interaction with good reliability and real-time after the laboratory test and field test.
Numerical Simulation of Helmeted Headform Drop Test Based on the EN1078 Standard
Authors: Hsu Ching Yu , Teng Tso Liang , Liang Cho Chung , Kuo Wu Chang , Shih Chien Jong , Nguyen Van Hai
Published: September 2014

The shock absorption test of the EN1078 standard is the focal point of this study. These performances are to setup a shock absorbing system for commercially available helmet, to measure the key parameters when an instrumented helmeted headform drops onto anvils. In this test, the helmet quality is assessed by measuring the acceleration time history of a headform during a helmeted headform impact. Helmet quality is expressed in terms of the injury parameters: maximum resultant linear headform acceleration of the headform's center of gravity and Head Injury Criterion (HIC). Besides, the present study performs to develop and validates a finite element of helmeted headform impact test. The FE model obtains by the scanned shapes of a bicycle helmet. The headform and anvil design in accordance with EN 960: 2006 and the EN1078 specification, respectively. This study performs finite element analyses of helmet impact tests using LS-DYNA software. The results of the present method fit the experimental results well, implying that the numerical method is a practical approach to helmet design problems. Furthermore, the helmet test model proposed here has potential for guiding the future development of helmet technologies.
Design and Test Development of a Comprehensive Performance Test Bench for Electric Wheel
Authors: He Ping , Dong Zhu Rong , Han Cheng Wei , Hu Song Hua
Published: September 2014

In order to research the driving performance of electric vehicle driven by the electric wheels and provide the test basis to the design of electric vehicle, the author of the paper designed and developed a multifunctional comprehensive performance test bench for electric wheel. Such test bench has the basic functions of road simulation, resistance simulation, vehicle weight simulation and inertia simulation, and the other functions of steering simulation, coupling simulation of electric braking and mechanical coupling, wheel hub motor performance test lamp. The author of the paper made certain design for the relevant test items, which has far-reaching significance for the test and research of the battery electric vehicle (BEV) driven by the wheel hub motor.
Study of Aging Technology in Aeronautical Aluminum Alloy Plate Vibration Base on Finite Element Numerical Simulation
Authors: Guo Yong
Published: September 2014

The vibration aging is an important means to eliminate the residual stress exiting in the structural parts. We establish a typical aluminum alloy plate finite element numerical model with the finite element method and acquire the natural frequencies and the corresponding vibration modes through the modal analysis. At the same time, make use of the numerical simulation of vibration aging process of aluminum alloy plate to study vibration aging effect in different vibration frequencies.
Improvement and Test on Ditcher Chain Transmission System of the Machine for Rice-Wheat Cyclic Planting
Authors: Chen Yu Lun , Qiu Wei , Ding Wei Min , Li Yi Nian , Liu Yu Tao
Published: September 2014

To solve the problem of irrational assignment on the transmission ratio, redesigned the transmission scheme and optimized the parameters of the rice-wheat cyclic planting machine’s ditcher chain transmission device. Results showed that transmission ratio of the improved system was assigned rationally, all the sprockets not only met the strength requirement, but also had moderate sizes and were easy to be assembled or disassembled, at least 41.57% of the material was saved, not less than 50% of the production cost was reduced; noise level of the optimized chain transmission system was lowered obviously than the original’s at the same rotary speeds all the time, the maximum difference reached 16.8 dB when the driving sprockets rotary speeds of the first-stage chain are 1200 rpm; safety of loading, accessibility to field and flexibility of transfer in field of the machine were improved significantly, such an optimized chain transmission system for ditching was reliable.
The Research on Height Control of Airship with Constant Flying Speed
Authors: Zhang Xin Li , Hu Yun An , Liu Di
Published: September 2014

The PID control scheme of airship with fixed flying high is studied in allusion to pitch channel nonlinear model of a class of stratosphere airship in this paper. The traditional PID control law is designed aim at the fixed high flight control of airship. The detailed simulation analysis is presented. It indicates that the airship can realize the fixed high flight in the range of 1000 meters. When flying high increase further, PID control scheme is not reasonable because instruction is too large. At the same time, the speed of engine has large influence on PID control scheme. The research of paper has good technical reference value for design and experiments of stratosphere airship.
Co-Evolutionary Implementation of Edge-Detection Algorithm Based on Multidirectional Gradient Edge Detection Predictor
Authors: Dang Xiang Ying
Published: September 2014

This paper proposes dynamic threshold control algorithm by Co-evolutionary implementation base on a multidirectional gradient edge detection predictor (MGEDP) template. First, the image cut into four equal parts, these parts will be calculate simultaneously the error values by MGEDP predictor template, in the four sub images using, dynamic threshold evolution; Use these feedback values, to get the error image, and to calculate the threshold values by collaborative computing OTSU threshold, and so on, to classify the edges of error image, The result was convinced that this model could not only accelerated the image processing by Co-evolutionary implementation but get the more details, clearer edges, and better visual sense image.
A New Image Edge Detection Method Based on GAP Predictor and Genetic Algorithm
Authors: Dang Xiang Ying
Published: September 2014

The edge detection is very important in the early stage of the visual processing, According to deal with the local characteristics of image information, First,this paper apply GAP predictor templates prediction error of the image. Then using improved genetic algorithm combined with OTSU method, calculate the threshold. According the threshold, the error image edge was classified , and image edge was extracted. Experiments show that this paper algorithm is better results than the traditional edge detection, It has the advantage of edge location accurate, less false edge, and so image edge detection is an effective supplement.
A New Test Device for Mechanical Ruling Process of Aluminum Grating
Authors: Shi Guang Feng , Zhou Yu Dong , Zhang Xiao Xu , Liu Xing Xing , Kou Xiao Yu , Shi Guo Quan
Published: September 2014

The study of the mechanical ruling process of aluminum grating needs a new test device. And a program controlled test device for mechanical ruling was analyzed, designed, manufactured and tested in this paper. The developed mechanical ruling techniques of this device to fabricate micropatterns are introduced with the characteristics of multiple degrees of freedom, openness, visualization, and operability. After some primary tests, assessment of microgrooves was performed with mini video microscopy, which confirmed the validity of the new device for mechanical ruling process investigation.
Adaptive Moving Vehicle Detection Algorithm Based on Hybrid Background Subtraction and Frame Difference
Authors: Luo Yan Li , Wan Han Lin , Xue Li Xia , Gao Qing Bin
Published: September 2014

This paper proposes an adaptive moving vehicle detection algorithm based on hybrid background subtraction and frame difference. The background image of continuous video frequency is reconstructed by calculating the maximun probability grayscale using grey histogram; Moving regions is gained by frame defference, the initial target image is obtained by background difference method,moving regions image and initial target image AND,XOR and OR operations to get the vehicle moving target images. Experimental results show that the algorithm can response timely to the actual scene changes and improve the quality of moving vehicle detection.
Determination of Generalized Basic Probability Assignment Based on Interval Numbers
Authors: Wang Rui Hong , Xu Pei Da , Chen Xin , Deng Yong
Published: September 2014

On the basis of the determination of basic probability assignment based on interval numbers, and combine the generalized evidence theory in the open world, the paper proposed an approach to determine generalized basic probability assignment based on the interval number, which offered a new idea of the determination of generalized basic probability besides the determination based on fuzzy theory. The rationality and effectiveness are verified by the experiments.
Exploration of Detecting Method of Waste Oil
Authors: He Wen Xuan
Published: September 2014

In this paper, the relative change rates of content of conjugated fatty acid glycerides, content of tans-fatty acid glycerides, unsaturation and linear long-chain fatty acid glycerides were explored after being at high temperature for several hours by using FTIR-ATR. The results hints:1.Starting from 160°C, the contents of conjugated fatty acids glycerides and trans-fatty acid glycerids in the vegetable oils increase but unsaturation and content of linear long-chain fatty acid glycerides decreases with heating temperature and heating time increasing; 2. When heating temperature reaches 200°C or more, the heating time up to four hours or longer, the four indicators (conjugated fatty glycerids, trans-fatty acid glycerids, unsaturation and linear long-chain fatty acid glycerides) of five kinds of vegetable oils have substantial changes; 3. The content of linoleic acid in the vegetable oil has some contributions to the change amplitude of contents of conjugated fatty acid glycerides, and the content of oleic acid in the vegetable oil has some contributions to the change amplitude of content of trans-fatty acid glycerides. Because refined “waste oil” experiences a longer history at temperature higher than 200 °C compared to the vegetable oil, four index value and its variation can be used as specific indicators for it.
Development of Detection System in 3m Steel-Belt Friction Transmission
Authors: Mou Shuai , Chen Zhi Ping , Xu En Dao , Jin Jia Lei , Tong Jing
Published: September 2014

In order to testify the driving characteristics of 3m homemade steel-belt friction drive test bench, a data detection system under AT89C52 is developed.The system uses two photoelectric encoders as the speed testing unit and one weighing sensor as the strength testing unit.therefore.It is critical to both of them to be used on real time to detect properties,such as rotation speeds, direction, pre-tightening force and dynamic load and so on. It is tested that this system is stable which can record the date of pre-tightening force accurately with the error in the range of 1% and keep transmission accuracy with the error in the range of 0.5%.
Indoor Environment Remote Monitoring System Designed Based on ZigBee and GSM
Authors: Zhang Zheng , Zeng Lun , Tao Xing Peng , Wang Chan
Published: September 2014

According to the problem of the temperature, light intensity, and smoke concentration acquisition for the indoor environment, a multi-channel data acquisition system based on ZigBee Wireless Sensor Network communicates with GSM network is introduced. This system taking CC2530 as the main controlling chip, using LabVIEW as the development platform, builds a data acquisition, analysis, query and display system. This system is stable, easy to maintain, and can be broadly applied to the remote real-time data acquisition and control.
An Automatic Collision Avoidance System Based on LiDAR
Authors: Yang Hao , You An Qing , Pan Wen Wu , Tang Hai Long
Published: September 2014

For vehicle-borne LiDAR, a mathematical model is built for the computation and reconstruction of laser point cloud with the scanning data, GPS data and IMU data. 3D point cloud of the road and the scenery on the both sides of the road is obtained. Then according to the trajectory of the vehicle, 3D roaming for the scenery on the both sides of the road is realized using OpenGL 3D engine technology. This technology provides a probably feasible way for anti-collision of vehicles and aircrafts when driven at night, in the heavy fog or flying between the mountains.
An Improvement on Sensitivity Test for Micro-Power Wireless Communication
Authors: Xiong Zhen Zhu , Lu Xin , He Ye Shen
Published: September 2014

This paper mainly introduces the assessment methods of bit error performance which can effect the sensitivity of the receiver in micro power wireless communication system,use simple Poisson distribution and binomial distribution to analyzes the quota such as FBR, BER and average bit error rate impact of the bit error performance. In order to enhance the accuracy and reliability of sensitivity test,we give a true random bit stream generator to improve the emission signal which is used to detect the error performance.
Research on Remote Wireless Concentrate Monitoring System of Substation Bus Voltage
Authors: Cheng Hai Jun , Jiang Pi Jie , Sun Li Ying , Ren Guo Chen
Published: September 2014

To solve some problems about the substation bus voltage monitoring, a remote monitoring system based on MCU and GPRS module is designed in this paper. The system consists of data acquisition terminals, communication networks and monitoring PC. STC12C5608AD is used as the control core of the data collection terminal, which extends power modules, data acquisition modules, wireless transmission modules in order to realize the data acquisition, processing and transmission. GPRS is adopted in the communications network to realize the voltage information remote wireless transmission. Configuration software ForceControl6.0 is used in PC to realize remote monitoring. The system is tested in a lab environment, and running well.
Strength Analysis for Composite Windshield of Commercial Aircraft
Authors: Du Ya Xiong , Li Shu , Guo Kai
Published: September 2014

With the development of advanced composites technology, composites instead of traditional aluminum alloy, will be widely used to build full-size aircraft windshield structure in the aviation field. The finite element model of commercial aircraft composite windshield is established in the environment of Msc.Patran / Nastran. And based on Tasi-Wu failure criterion, the strength of windshield structure under typical load pressure is predicted and analyzed during failure processes. It shows that composite windshield can work better through rational design according to the analysis result.
Study on Failure Mode of Steel Fiber Reinforced High Strength Concrete Wall under Blasting Load
Authors: Li Nan , Zhao Jun Hai , Li Yan , Wang Juan
Published: September 2014

The dynamic response of the SFRHSC wall under blasting load is simulated and analyzed by establishing the 1/4 wall model with finite element explicit dynamic analysis software ANSYS/ls-dyna. Considering the damage and strain rate effect, the J-H-C model is used as material model, and model parameters are calculated by using the test of literature data. The explosion loaded by CONWEP model and *LOAD_BLAST keyword. Different failure modes of wall under different scaled distances are analyzed, the results show that shear failure will occur when the scaled distance is small, flexure failure will happen when the scaled distance is large, in addition, comparing with normal reinforced concrete, the displacement in the center of the SFRHSC wall is smaller under the same condition, which embodied that the high tensile strength and compressive toughness of SFRHSC are significantly enhanced the anti-explosion ability of the wall. The research results of this article can provide reference for the design of SFRHSC fender wall.
The Bending Properties of Sandwich Materials with Polyurethane Core
Authors: Chocholouš Petr , Müller Miroslav , Valášek Petr
Published: September 2014

This article deals with thermal insulation sandwich materials and with their flexural properties. Suitability of designed testing method is confirmed according to experimental research. According to proposed method, flexural properties such as flexural strength and modulus of elasticity are stated. Type and mechanism of destruction sandwich materials during tests are described also.
The Experimental Analysis on Influencing Factors of P-Wave Velocity in Red Sandstone
Authors: Wang Jian Guo , Gao Quan Chen , Wang Xiao Yan , Liu Jie , Jiang Bin , Wu Wei
Published: September 2014

Due to the internal structure of red sandstone is loose, the influence factors of acoustic velocity are variety, it is necessary to make a quantitatively research on the influence factors. With the aid of the ultrasonic testing for the rock, p-wave velocity of red sandstone decreased with the increase of porosity under the condition of no coupling medium, when the porosity exceeded a certain value, its internal pores and fractures had a great influence on wave velocity. When the density of red sandstone was greater than 1.82 g/cm3, wave velocity changed little, while the density was less than 1.82 g/cm3, wave velocity decreased rapidly. Under water-solid coupling condition, the change of wave velocity and porosity had no obvious regularity, part of the specimens’ wave velocity decreased a bit, while some specimens’ wave velocity were slightly higher, but the amplitude were small; Under oil-solid coupling condition, longitudinal wave velocity changed significantly, the biggest percentage of increase was 46.3%, the average was 33%.
Research on the Nonlinear Performance of the Pier under Horizontal Force
Authors: Yang Wan Li , Fan Yu Cheng , Yan Jin
Published: September 2014

Usually, a large horizontal force will be generated to the pier in the construction process, which may induce significant influence on the pier‘s safety, especially in the case of the bridges with high piers and long span. Some cracks ermerged in the foot part of a pier in the construction stage and a horizontal force was believed to have been load on it, hence its reliability was douted.The pier was simulated with virtual laminated element program, and its mechanical performance under a horizontal force was calculated with both geometrical and material nonlinearity are considerd, thus its whole loading and failure process was illustrated and the pier’s safety was assessed.
Influences of SiC Particle Size and Electroless Plating on the Properties of SiCp/Cu Composites
Authors: Tang Li Li , Hu Ming , Shan Lin , Zhang Yun Long
Published: September 2014

Electroless plating technology was applied in order to improve the poor wettability between the copper and SiC. SiCp/Cu composites were frbricated by hot-press sintering technique. The influences of SiC particles (Cu-coated and Cu-uncoated) and SiCp/Cu-5vol%n-SiC on microstructures, relative density, bending strength and coefficient of thermal expansion(CTE) were researched in detail. The results show that SiC particles distributed in Cu matrix uniformly. And a certain amount of SiC, the relative density and bending strength of SiCp/Cu(Cu-coated) composite were greater than SiCp/Cu(Cu-uncoated) composite, and the coefficient of thermal expansion was opposite, Between SiCp/Cu(Cu-coated) and SiCp/Cu-5vol% nanoscale SiC(n-SiC), the relative density and bending strength of SiCp/Cu(Cu-coated) were more than SiCp/Cu-5vol%n-SiC, and CTE was different.
The Study on Jacking and Monitor Points Arrangement in Jack-Up Engineering
Authors: Fu Su Juan , Qiang Wan Ming , Li Xu Guang , Li Shang Fei
Published: September 2014

Taking Yuzhen Palace of Wudang Mountain integrally jack-up engineering for instance, the paper analyzes the stress change of the joist in different of jacking and monitor point arrangement using finite element method. By changing the distance and the number of jacking points, the stress distribution of joist is analyzed, so that it concludes a reasonable layout scheme. And the results show that: the jacking and monitor points position have an influence on the stress of joist in the process of jack-up. Reasonable arrangement of jacking and monitor points could effectively reduce the additional internal force of joist to coordinate each point jacking force and rational allocation of jack.
Studies on the Effects of Air Content on the Mechanical Properties of CA Mortar
Authors: Zeng Xiao Hui , Yan Hua , Hu Hua Feng , Sun Hong You , Li Yue
Published: September 2014

Mechanical properties of CA mortar with different air content were studied, and the size of the air bubbles was also analyzed. Results showed that the ductibility of CA mortar could be largely prolonged by the air bubbles. As the air content of CA mortar increased from 4.2% to 9.1%, the strain of the maximum stress increased from 1% to 2%. The compressive strength and elastic modulus of CA mortar decreased as the air content increased. And when the air content of CA mortar was higher than 15%, the compressive strength of it decreased rapidly. The SEM analysis showed the air bubbles of diameter larger than 0.5mm was the primary reason of decrease of the compressive strength.