bluuebunny/crossref_metadata_2025 huggingface dataset:
"Mechatronics Galaxy" a New Concept for Developing Education in Engineering
Authors: Gheorghe Ion Gheorghe , Badita Liliana Laura , Cirstoiu Adriana , Istriteanu Simona , Despa Veronica , Ganatsios Stergios
Published: August 2013

This paper initiates the launch and the integration of a new scientific concept: "Mechatronics Galaxy", a support of industrial research for European sustainable and strategic development. This new concept is based on achievement and development of evolutionary and integrative-synergistic concepts regarding micro-nanomechatronics engineering, micro-nanoelectronics engineering and micro-nanoIT engineering for: spatial, temporal and functional integration;intelligent adaptive behaviour based on perception, self-learning, self-diagnostics and systemic reconfiguration; adequate flexibility of software and hardware structures; predictive development of micro-nano-mechatronics structures and of the intelligent computerized applicability with high added value; simultaneous mix-integrative design of micro-nano-products, micro-nano-systems and micro-nano-technologies; a strategy of technological impact in economy, industry, society and education. Thus, the new concept "Mechatronics Galaxy" creates and develops micro-nano-mechatronics engineering, based on fundamental and applied techniques: micro-nano-mechatronics, micro-nano-robotics, micro-nano-integronics, micro-nano-sensoristics, micro-nano-actuators, micro-nano-processing and intelligent micro-nano-manufacturing.
Technological Failures Research at Aluminum Parts Processing on Automatic Lathes
Authors: Pămîntaş Eugen , Turc Cristian
Published: August 2013

Processing in large numbers of small profiled parts shall be made usually on semiautomatic and automatic lathes. Outer turning with circular form tool and also drilling are the most common operations in such cases [.
In a particular case, during tests in preparation stage of manufacturing technology, have found numerous unconformities and even accidents, reason for which also capability testing for those parts went out negative.
There is thus a problem and she had solved: researching the causes of nonconformities and restore the quality and precision parameters of parts made.
To solve this problem was commissioned a group of experts from the company, supervised also advised by two experienced researchers from a specialized institute.
The research method used was the classical experimental processing established by a scientific program, the input data consisted of working parameters for outer turning with circular form tool (radial feed speed) and respectively drilling with a bit (speed and axial feed), and output data collected were the following: the main cutting force, the machined surface quality and the accuracy of dimensions of parts machined.
The results obtained after the completion of experimental program were processed as graphs and charts and various observations collected over have undergone thorough analysis by specialists with great experience.
Rigorous interpretation of the above results allowed the issuance of a series of recommendations on selecting the most appropriate working regime for turning and drilling respectively, and developing a written procedure to be followed to avoid future of such processing failures.
Optimizing the Thermal Physiological Comfort by Introducing Peltier Cells in Simulated Conditions
Authors: Vlad Luminița , Mitu Stan , Buhai Crina
Published: August 2013

The paper aims to approach in an original manner both the research method and the solution to the problem related to thermal physiological comfort by introducing the Peltier cells in the structure of the clothing product. The special clothing piece studied for tests during wearing is a protective clothing for firefighters; between its layers were introduced temperature and humidity transducers. The electric scheme and the transducers connection scheme, as well as the Peltier cells connection and power scheme were made. The data registration and the graphics were made using the PC-Lab 2000SE software. The experiment included three distinct phases: a rest period of 10 min, physical effort for 20 min which simulates the effort made during an activity specific for firefighters and 10 minutes of rest after this exercise. The temperature and humidity charts were recorded and analyzed for each stage, if the garment is unequipped and then equipped with Peltier cells. If, in the case of physical effort, significant temperature variations in the underclothing environment were noticed, by introducing the Peltier cells, an optimization of the thermal physiological comfort was performed, with implications on the wearers health.
Improvement of Process Failure Mode and Effects Analysis Using Fuzzy Logic
Authors: Rachieru Nicoleta , Belu Nadia , Anghel Daniel Constantin
Published: August 2013

Risk analysis increased in importance within environmental, health and safety regulation last few years. Process Failure Mode and Effects Analysis (PFMEA) is one of the most used techniques to evaluate a process for strengths, weaknesses, potential problem areas or failure modes, and to prevent problems before they occur. The traditional PFMEA determines the risk priorities of failure modes using the risk priority numbers (RPNs) by multiplying the scores of the risk factors like the occurrence (O), severity (S) and detection (D) of each failure mode. The method has been criticized to have several shortcomings. Fuzzy logic approach is preferable in order to remove the deficiencies in assigning the risk priority numbers. In this study, a fuzzy-based FMEA is to be applied to improve the manufacturing process of rear bumper, injection part used in automotive industry. The fuzzy model PFMEA can provide the stability of process assurance.
Computer Aided Measurement of Elastic Deformations of a Work Piece in the Turning Process
Authors: Boca Mihai , Nagit Gheorghe , Horodinca Mihaita
Published: August 2013

In the turning processes, one of the causes which generate processing errors is represented by the elastic deformation of the work piece. This leads to modifications along the entire length of the considered work piece.In this study, the authors have searched for possibilities to analyze and establish values of elastic deformations corresponding to the machine parts obtained in the turning process. This involves the measurement and interpretation of the signal which describes how far or how close the measuring device is from the work piece. This action was performed with an optical transducer.In this way, we have measured the elastic deformation by exploring the work piece length with an optical sensor; also, we have developed a processing method of a signal generated by the optical sensor which was tested, both experimentally and in real work conditions and it lead to a validated procedure for measuring-processing data.The result of this study creates the prospects to analyze step by step the relation between the cutting force and the elastic deformation of the processed work piece. As a solution for solving the problem we have to mention the creation of a device which can make corrections by means of trough transversal displacement of the cutting tool.
Innovative Development of One-Off and Small Series Products
Authors: Ravai Nagy Sándor , Lobonțiu Mircea , Kuric Ivan , Petrovan Adrian
Published: August 2013

In this paper, the issue of product development in unit manufacturing is addressed, which has specificity in the number of produced units. This type of production is characterized by a high volume of labor and involves a relatively long production cycle, requiring a universal endowment and a multi-skilled workforce. This type of product is specifically custom manufacturing, the product, which is not available at the time of order and requires a deadline. Based on a case study, the paper proposes a model to approach this type of production.
Planned Obsolescence and the Product Lifecycle
Authors: Lobonţiu Gabriela
Published: August 2013

Based mainly on an exploratory study of the dedicated literature, the paper is providing a general framework for planned obsolescence and contrived durability, and establishes its place in the product lifecycle, covering also the critics and the shortages, as well as appraisals and potential benefits that planned obsolescence is having for industrial manufacturers.
The Role of the Eco-Requirements in the Sustainable Product Development Based on the Axiomatic Design Principles
Authors: Mourão António , Fradinho Joao , Santos Antonio , Dodun Oana , Slătineanu Laurenţiu , Gonçalves-Coelho António
Published: August 2013

One of the current trends of competitive companies is moving to eco-innovation. This pathway involves a multidisciplinary approach and a systemic attitude concerning to eco-design. The focus must be to analyse the customer requests from a sustainable viewpoint, understanding their real needs and finding solutions structurally sustainable from the early steps of the product development. The objective of this paper is to consider the perspective of the eco-design not as control issue, but something that should be used from the outset of the design process and be considered in the different domains of the design at all its levels of detail, in parallel with the ÒusualÓ functionality. The herein described consists in introducing the eco-requirements by structuring the eco-issues in the design product structure based on the Axiomatic Design theory. The result of this research is a proposal for a guideline for the structuring of the sustainable product development using a surfboard as an example.
The Application of Seismic Isolation Technology in Civil Engineering
Authors: Zhang Yan , Zhang Yu , Jia Lian Guang
Published: August 2013

This paper introduce the basic overview of the project of Shenyang Metro Lishui City, trough the isolation technology applied in the the project of Shenyang Metro Lishui City, we talk about the basic concepts of the isolated structure,category and the application. It describes the structure and performance comparison of laminated rubber bearings.At last, briefly introduced the problems to be solved of the isolated structure.
Study Effects of Vehicle Velocity on a Road Surface Roughness Simulation
Authors: Reza-Kashyzadeh Kazem , Ostad-Ahmad-Ghorabi Mohammad Jafar , Arghavan Alireza
Published: August 2013

Road roughness is a broad term that incorporates everything from potholes and cracks to the random deviations that exist in a profile. To build a roughness index, road irregularities need to be measured first. Existing methods of gauging the roughness are based either on visual inspections or using one of a limited number of instrumented vehicles that can take physical measurements of the road irregularities. This paper presents used a quarter car model (passive suspension System in 206 Peugeot) in according road classification ISO 2631-1 is achieved road roughness interval in form of optimization method Gamma (4p) distribution as PSD function in different constant speed of car (34, 70 and 100 Km/h) by using Matlab Code. Finally, to have accurate results and to describe effect of vehicle velocity on irregularity surfaces incoming Automotive Suspension System, are compared road roughness in terms of travel length and PSD function in terms of Frequency Hz. Keyword: Road Roughness, PSD function, Vehicle Velocity, Gamma (4p) distribution.
Real-Times Snowfall Simulation Based on Particle System and Pulverization
Authors: Lv Hong Yan , Liu Fang
Published: August 2013

Snowfall process is analyzed from the perspective of computer simulation in this paper, the dynamic properties and the static properties of snow particles are abstracted based on particle system theory. The snow particles movement is simulated with wind and no wind. To solve the problems of the blur of snowing environment and firn phenomena, the paper puts forward a method of applying pulverization to snowing virtual environment. The tests show that the simulation methods of snowfall and pulverization are effective and real, which are suit for real-time virtual environment.
Hydraulic System Research of the Pumping Unit Based on Electro-Hydraulic Proportional Control Technology
Authors: Chang Lin Jiang , Lin Shu Zhong , Zheng Hong Wu
Published: August 2013

Trapezoidal curve is selected as the hydraulic pumping unit load running speed curve. Designed a new hydraulic system of hydraulic pumping unit according to the electro hydraulic proportional control technology and then expounded its working principle, in which the electro-hydraulic proportional directional throttle valve have been used. The system is feasible on the theory by analyzing its mathematical model. It would meet the requirement of hydraulic pumping unit and realize the advantages of it via controlling the input current signal of the amplifier.
The Human-Computer Interaction Analysis and Construction on Intelligent Service Robot
Authors: Sun Wei , Sun Ping
Published: August 2013

This paper studied the human-computer interaction for intelligent service robot system, and analyzed the human-computer interaction mode, human-computer function allocation and the robots intelligence. Combined with the specific case of the welcome robot, we described the construction of the intelligent service robot interaction system.
Dielectric, Piezoelectric, Pyroelectric Properties and Polymorphic Phase Transition of 0.95 (KXNa1-X) NbO3-0.05LiSbO3 Lead-Free Ferroelectric Ceramics
Authors: Zhang Yang Yang , Zhang Jin Ping , Wang Er Ping , Jiang Sheng Lin , Lu Lin
Published: August 2013

0.95 (KXNa1-X) NbO3-0.05 LiSbO3(KNN-LS-X) (X=0.4-0.5) lead-free ceramics were prepared by conventional solid method. The effect of K/Na ratio on the dielectric, piezoelectric, pyroelectric and polymorphic phase transition was studied. The results show that the electrical properties strongly depend on the K/Na ratio. The KNN-LS-X(X=0.45) ceramics exhibit enhanced properties (εr=891.267,d33=222pC/N,Kp=0.43517,Qm=64.72,p=15×10-4C/m2K). Enhanced electrical properties of the KNN-LS-X (X=0.45) ceramics could be attributed to the effect of K/Na ratio modifying the polymorphic orthorhombic-tetragonal phase transition temperature to room temperature, which could make KNN-LS-X (X=0.45) ceramics use as a new ferroelectric sensor.
Experiment on Properties of Recycled Aggregate Concrete
Authors: Yang Hai Tao , Tian Shi Zhu
Published: August 2013

Objective: Measure and study the mechanical properties and abrasion resistance of recycled aggregate concrete in order to provide experimental basis for the application of recycled aggregate concrete in engineering. Method: Use recycled aggregate concrete with replacement ratio of recycled coarse aggregate respectively for 0%, 30%, 50%, 80% and 100% to do the slump, compressive strength, modulus of elasticity and abrasion resistance tests on them. Result: The workability of concrete decreases with the increase of recycled coarse aggregate content. Mechanical properties of concrete change as the replacement ratios of recycled coarse aggregate change. Conclusion: The recycled aggregate concrete and natural aggregate concrete have similar abrasion resistance. The recycled aggregate concrete can be applied in engineering.
Effect of Electrolytes Variation on the Formation of Oxide Layers of Al7075 Alloys by Electrolytic Plasma Processing
Authors: Lee Dong Gun , Ahn Byunh Hyun , Lee Je Hyun , Cho Uk Rae , Koo Bon Heun
Published: August 2013

Al7075 alloy has typically good mechanical properties. Al7075 alloy has an ultimate tensile strength and yield strength, which is commonly used in the manufacturing of heavy-duty structures requiring good corrosion resistance and in applications requiring high strength to weight ratio, as well as good fatigue resistance. However, as compared to strength and corrosion of conventional steel material, it has some drawbacks. To overcome these disadvantages, Electrolytic plasma processing (EPP) was used. (EPP) is a novel electrochemical and physical surface treatment process for generating protective coatings on light metals. Because, these coating scan present high hardness and continuous barriers, it can offers good protection against abrasion, corrosion and heat as well as electrical insulation. The EPP treatments were carried out under a hybrid voltage of AC 200V (50Hz) combined with DC 260V power supply.
Microhardness Enhancement of Steel Weldments Using Mechanical Oscillation of the Welding Joint
Authors: Abu-Dheir Numan
Published: August 2013

Mechanical vibration applied to solidifying metals is a proven method to create finer and uniform microstructure. However, its application toward welding of ferrous joints as those used in the oil and gas industry is not fully utilized. Several shielded metal arc welding (SMAW) experiments of mild steel plates were conducted at the following three levels of vibration frequency: 50 Hz, 500 Hz, and 5 kHz. Metallographic examination revealed that the average grain size of the center of the welds was reduced compared to the conventional welding by 29%, 11%, and 20% when vibration with frequencies of 50 Hz, 500 Hz, and 5 kHz were used respectively. The center of the welds recorded hardness in the range of 210-225 HV for the 50 Hz vibrated welds, 205-219 HV for the 500 Hz vibrated welds, and 200-235 HV for the 5 kHz welds against 180-190 HV for the unvibrated welding samples.
SDBS Degradation by a Heterogeneous Fenton-Like Reaction on Three Types of Catalysts
Authors: Zhang Ting , Yu Shu Rong , Wang Yi
Published: August 2013

Two kinds of attapulgite (ATP)-based catalysts (Fe (III)/ATP and Fe2O3/ATP) were prepared and their heterogeneous Fenton-like reactions were investigated for the degradation of Sodium dodecyl benzene sulfonate (SDBS) and contrast with that of Fe2O3 catalyst. Compared with the Fe2O3 catalyst, the two new ATP-based catalysts exhibited a higher activity and stability in SDBS mineralization. The effects of pH, H2O2 dosage, catalyst dosage and temperature were investigated. With incorporating ATP, the degradation ratio was more than that of Fe2O3 catalyst. And an enhancement of H2O2 utilization ratio was achieved.
Discussion on the Outburst Identification of Coal and Gas
Authors: Li Shao Quan , Liu Yi Fu , Wang Feng , Nie Guo Hong , Li Qing Song
Published: August 2013

Problems existing in identification index, identification scope, identification process and other aspects were analyzed and discussed by combining the present situation of identification work of coal and gas outburst in China in this study, and targeted rationalization proposals were proposed. This is of an important reference value to promote the identification work perfection of coal and gas outburst and give full play to the guiding function of identification work in the safety production of coal mine.
The Application of MATLAB in Classical Electrostatics Boundary-Value Problems
Authors: Zong Fu Jian , Ma Jin
Published: August 2013

In this paper we introduce the use of a computer image and the Partial Differential Equation (PDE) Toolbox in MATLAB, and discuss the electrostatic field, the potential function and the solution of the Laplace equation by separation of variables and the PDE toolbox. It is convenient to figure out the classical electrostatics problem with MATLAB.
Wave Motion Numerical Simulation of Artificial Boundary Conditions and its Application in Finite Element Software
Authors: Pei Qiang , Wu Shuang
Published: August 2013

Artificial boundaries are developed by means of theory of elastic wave motion. The related theory of visco-elastic artificial boundary and expressions of parameters are introduced. And the stability of the visco-elastic artificial boundary is verified combining with numerical example of plane problem by using large-scale finite element software. The results show that the boundary can simulate the energy radiation effect of semi-infinite foundation and elastic restoring force at the same time. In addition, the programming of the boundary in finite element software is easy to implement, the calculation results using the boundary are stable and the boundary has a broad application in engineering.
The Development of Online Shopping System Based on the MVC Pattern
Authors: Shi Yi Ping
Published: August 2013

The paper mainly introduces the development process of the online shopping system using the MVC design pattern and SSH framework technology. Because this system adopts the MVC design pattern, the development program truly achieves loose coupling and greatly simplifies the development code and has high maintainability and extensibility .
The SoC Design for Facial Expression Recognition with Adaptive Speedy Algorithm in Order to Camera System
Authors: Lee In Jung
Published: August 2013

Smart and emerging technologies require fast processing hardware and software fusion solutions. In this paper we propose SoC design for facial expression recognition with adaptive speedy algorithm. In this order a shape detection algorithm is implemented on conditional random fields. In this way the conditional random fields is calculated into speedy conditional random fields (SCRF). On this new fields shape detection algorithm become speedy. The detection algorithm is designed and implemented fully as hardware and the block architecture uses indexed register bank with 1 clock delay output and with minimum latency. The block fits in a Xilinx Vertex5 device requiring 45,110 LUTs and No camera data memory. Additionally S3C6410 embedded board with processing ARM-11 was attached to device to further operations. The pointing input device SoC supports the proposed facial expression recognition will be fabricated.
Finite Element Analysis on Mechanical Properties of Lathe Spindle
Authors: Yu Y.M.
Published: August 2013

The ANSYS software was used to carry out finite element analysis on the mechanical properties of lathe spindle, taking C7620 lathe as research object. By static analysis, the maximum deformation and maximum stress value of spindle in specific operation were determined. Furthermore, spring-damper element was adopted to simulate elastic supports of bearing in dynamic analysis, and then the natural frequencies of the first five ranks and vibration modes of spindle were obtained. The research results in this paper have theoretical and practical significance in optimizing the design of lathe spindle parts and shortening production cycle.
Developing Criterion and Optimization of PAL System
Authors: Amirov F.G.
Published: August 2013

Both criterion and methods for optimization of structural configuration of PAL systems have been developed. Such economical indicator as reduced costs criterion has been considered.
The Establishment of the Digital Elevation Model
Authors: Ni Chun Di , Liu Shen Kui , Yin Xiao Wei
Published: August 2013

Contour line map and digital terrain model are widely used in practical work. With the rapid development of computer technology, computer graphics and geographic information system, they become more and more practical and their roles have become more prominent. Contour line has incomparable advantage of expressing both qualitative and quantitative information especially in the terrain analysis. Many algorithms of contour line map are automatically generated based on the digital terrain model.
A Multilevel Optimal Feature Selection and Ensemble Learning for a Specific CAD System-Pulmonary Nodule Detection
Authors: Guo Hao Yan , Wang Da Zheng
Published: August 2013

The traditional motivation behind feature selection algorithms is to find the best subset of features for a task using one particular learning algorithm. However, it has been often found that no single classifier is entirely satisfactory for a particular task. Therefore, how to further improve the performance of these single systems on the basis of the previous optimal feature subset is a very important issue.We investigate the notion of optimal feature selection and present a practical feature selection approach that is based on an optimal feature subset of a single CAD system, which is referred to as a multilevel optimal feature selection method (MOFS) in this paper. Through MOFS, we select the different optimal feature subsets in order to eliminate features that are redundant or irrelevant and obtain optimal features.
A Clustering Method Based on K-Means Algorithm
Authors: Li You Guo
Published: August 2013

In this paper we combine the largest minimum distance algorithm and the traditional K-Means algorithm to propose an improved K-Means clustering algorithm. This improved algorithm can make up the shortcomings for the traditional K-Means algorithm to determine the initial focal point. The improved K-Means algorithm effectively solved two disadvantages of the traditional algorithm, the first one is greater dependence to choice the initial focal point, and another one is easy to be trapped in local minimum [1][2].
Enlarge the Field of View of Nano CT in Synchrotron Radiation
Authors: Tan Ren Bo , Fu Jian , Chen Li Yuan
Published: August 2013

nanoCT with synchrotron radiation has a high spatial resolution up to nanoscale which provides an approach to the 3D inter-structure of sample of tiny size in the research of biology, materials and so on. However, due to the high resolution it provide, the field of view is limited to only about 15~60μm. In order to improve the scale of field of view, we discussed a new scan mode called half-scan which is using the symmetry of parallel-beam x-ray and newly applied in the synchrotron radiation imaging field. In this paper, we deduced the data processing method which is consisted of data preprocessing and filter back projection (FBP) algorithm. Numerical simulation and analysis demonstrate that the field of view can be enlarged up to 100% with this method.
Review on Artificial Neural Network and its Application in Foundry
Authors: Shi De Quan , Gao Gui Li
Published: August 2013

Artificial neural network (ANN) has been widely used in the foundry because of its strong nonlinear processing capacity and high fault tolerance. First, the model and its realization of ANN are briefly described by taking the most commonly-used BP network as an example. Then the application of ANN in foundry are reviewed in detail from the aspects of the quality optimization of greensand preparation, control of the melting equipments, diagnosis and prediction of the casting defects, chemical composition prediction of the molten iron, breakout forecast of the continuous casting process, and graphite shape identification of cast iron. Finally its pointed that the application of ANN in foundry will be deeper and broader with the breakthrough of ANN theory.
A Synthesis Load Model with Distribution Network
Authors: Ding Li Jie , Wang Jun , Liu Ying
Published: August 2013

Equivalent induction motors with equivalent static loads are applied in load models. However, load appliances are installed on low voltage buses in power grid and the distribution network impedances cannot be neglected. A synthesis load model considering the distribution network can describe the load structure more completely and precisely. A comparison including the composite load model simulated powers and the synthesis load model simulated powers with the measures are described in this paper.
Analysis of the Rate Constant for Hydration Kinetics of the Cement and Ash Fly in the Solidified Residues System Based on the Measurement of Ca(OH)2
Authors: Li Qin , Zhou Xiao Jun , Sun Ke Wei
Published: August 2013

Based on the hydration kinetics of the cement matrix material, the paper presents a chemical analysis method by means of analyzing the contents of Ca(OH)2 in cement matrix material. The kinetics constant for the cement, ash fly in the residues system solidified by recycled cement, ash fly was determined at different temperature. The hydration kinetics characteristic of the residues system after being hydrated 7 days is first order reaction.
A Review of Manganese Ore Beneficiation Situation and Development
Authors: Ding Peng , Liu Quan Jun , Pang Wen Hao
Published: August 2013

According to the characteristics of China's manganese ore resources, the present situation of manganese ore beneficiation in China is briefly introduced, and puts forward the development trend of China's manganese ore beneficiation.
ABS Control Strategy for Electric Vehicles Driven by Four Wheel Motors
Authors: Li Jian Yi , Yang Li Jie , Yang Shi You , Liu Yang
Published: August 2013

This paper proposes a hypothesis that ABS(Anti-Brake System) regulation of EVs (Electric Vehicles) could be achieved only by wheel motors. Based on the logic threshold method, an ABS control strategy is designed to verify the hypothesis. Furthermore, a model called four wheel motor drive EV model is originated with this control strategy, and co-simulated in both AMESim and MATLAB/Simulink. Finally, according to the rule ECE R13, this ABS control strategy for EVs is validated in theory.
Research on TTR and Roll Stability Control of Heavy Vehicle
Authors: Zheng Hong Yu , Chen Yu Chao
Published: August 2013

Because of the sensitive factors, such as the larger loads, higher mass center and relatively narrow tread in comparison with the height of heavy vehicles that have the poor dynamic rollover stability. This paper set of anti-rollover LQR control algorithm based on early warning. The model-based early rollover warning algorithm utilize the TruckSim® models and early warning reference model to predict the impeding vehicle rollover time in advance and told the driver the warning signals so that drivers had enough time to take appropriate measures to prevent vehicle rollover that called time to rollover (TTR), thereby greatly improving the vehicles active safety performance of the heavy vehicles. As to the anti-rollover LQR control algorithm, the principle was to use the optimal additional yaw moment obtained from the control algorithm and then made it reasonable impose the corresponding wheels by taking the moment distribution methods based on the differential braking for the purpose of reducing the risk of rollover. The simulation results show that the algorithm was presented in this paper can effectively reduce the lateral load transfer ratio and actively void the occurrence of rollover accidents.
Power Line Carrier Communication Channel Model Applied to Shipboard Electric Network
Authors: Li Hong Jiang , Zhang Hao Lan
Published: August 2013

It is necessary to build a particular communication channel model to investigate shipboard electric network power line carrier technology. And this model must live up to characteristics of ordinary power line as well as shipboard electric network. This paper confirms the lighting network as the PLC application network in the first place, on the basis of lumped parameter transmission model, analyzes shipboard cable AC resistance, describes pulse noises of shipboard loads, and builds the shipboard PLC channel model. Comparing with the PLC multipath model of large land electric network, this channel model also reflects characteristics of high frequency time-varying selective fading and low frequency smooth fading, at the same time, lives up to shipboard electric network characteristics.
The Research of Gray Bus Positioning System
Authors: Cui Ce , Hao Cheng , Li Duan Duan
Published: August 2013

Position detection method is applied in industrial production. Some of these methods can ensure positioning accuracy but poor ability to resist pollution, some lower cost but positioning is not accurate. In this paper, we study the Gray bus location system can be used in linear or circular displacement detection. Gray bus location system has a precise location. Its ability to resist pollution is strong, waterproof. Gray bus location system detecting the unloading cars real time location, then, let the signal of real-time location transmitted to MCU.MCU converts the signal into switch signal to control the discharging car running. Through Gray bus position detection device and control system to work together, can realize the unloading car walk smoothly, the stop position accurately.
A Fault Diagnosis Method Based on Artificial Immune Network
Authors: Jiang Wen Ke , Chen Yu Juan , Zhang Jing
Published: August 2013

A new fault diagnosis method based on artificial immune network is proposed. The network combined aiNet with radial basis function (RBF) NN. The structure of the network proposed is the same as RBF NN. The training samples are clustered first by the improved aiNet algorithm. The centers of the clustering are saved as the centers of the hidden layer, therefore, the amount and positions of nodes in the hidden layer can be determined automatically. The weight matrix is determined by least squares (LS) algorithm. The network is applied to fault diagnosis of CJK6136 spindle gear case. The results of the experiments confirm the performance of the proposed network through comparing with RBF NN under the same conditions. The diagnosis success rate for the network proposed was 99%, while that for RBF NN is 89.5%.
A New Method for Full State Hybrid Projective Synchronization of Different Fractional Order Chaotic Systems
Authors: Feng Hao , Yang Yang , Yang Shi Ping
Published: August 2013

In this paper, the full state hybrid projective synchronization (FSHPS) between two different fractional order chaotic systems is investigated. i.e., the fractional order Chen system and the fractional order Lorenz system. Based on the synchronization error system feedback linearization theory, a new method combining feedback control is proposed for theFSHPSin fractional order chaotic systems. Numerical simulations are presented to verify the effectiveness and the feasibility of the synchronization scheme.
Fatigue Damage Research on Rod-Fastening Rotor of Gas Turbine Considering Start-Up Stage
Authors: Li Xue Peng , Wang Ai Lun , Gao Si Xiao
Published: August 2013

Fatigue damage was analyzed of the rod-fastening rotor of gas turbine in the process of frequent start-up. The maximum stress of rotor was calculated, applying nonlinear damage mechanics model to analyze the fatigue damage of the rotor in the process of startup. Finally, we get the damage quantity in each process of start. It provides certain theoretical basis on slowing degradation velocity of the rotor.
The Abrasive Resistance Study about the Cutting Picker 40Cr of Coal Cutter
Authors: Zhang Ning , Wang Shu Chen , Shi Na , Chen Hao
Published: August 2013

The cutting pick is primarily used in footing excavation such as coal mining and roadway excavation, so the performance of cutting tooth directly affect the mining capacity, the driving efficiency, and the service life of the tool. The quality of domestic mining pick is lower than that abroad, especially the tooth body wear of the whole shearer picks accounts for half of its overall failure. Thus tooth body 40Cr was treated by various heat treatment processes in this experiment, so as to improve the hardness and wear resistance of cutting tooth, analysis the surface wear scar of morphology, research the wear mechanism, that made for reducing the consumption of cutting tooth, improving work efficiency, and easing the labor intensity of workers undergound.
Study on Microstructure and Properties of Plasma Arc Surfacing Layer for Cutting Pick
Authors: Zhang Ning , Yang Li , Yang Feng , He Min , Shi Ming
Published: August 2013

Cutting tooth especially due to the poor quality of the shearer brazing, caused great pick consumption and delayed hours. The tooth body wear of the whole shearer picks accounts for half of its overall failure. In this experiment, the cutting pick jiont which was welded by induction brazing was strengthened by plasma arc powder surfacing, then analyse the microstructure, surface topography, and mechanical property of the weld jiont, so as to provide a new scheme for solving the tooth wear failure, and extending the service life. The pick failure problem caused by the lower hardness of the tooth tip, tooth wear, and the premature loss of hard alloy head.
Effect of Drive Location on Vibro-Acoustic Characteristics of Submerged Double Cylindrical Shells with Damping Layers
Authors: Zhang Chao , Shang De Jiang , Li Qi
Published: August 2013

Based on the modal superposition method, the analytical model of vibration and sound radiation from submerged double cylindrical shells with damping layers was presented. The shells were described by the classical thin shell theory. The damping layers were described by three-dimensional viscoelastic theory. The annular plates, connecting the double shells, were analyzed with in-plane motion theory. For different drive locations of radial point force on the inner shell, the sound radiated power and the radial quadratic velocity of the model were calculated and analyzed. The results show that making the drive location near the annular plate helps to reduce the sound radiated power and radial quadratic velocity of model, and making the drive location far from the middle of model also helps to reduce the sound radiated power. The drive applied on the location of annular plate causes high similarity of vibrations from inner shell and outer shell.
Controlled Auto-Ignition Combustion in a Two-Stroke Cycle Engine Using Hot Burned Gases
Authors: Andwari Amin Mahmoudzadeh , Aziz Azhar Abdul , Mohd Farid Muhamad Said , Zulkarnain Abdul Latiff
Published: August 2013

A new combustion concept, which is viewed increasingly as a probable solution to these issues is Controlled Auto-Ignition (CAI) Combustion. In such an engine, a homogeneous mixture of air, fuel and residual gases is compressed until auto-ignition occurs. Due to its significantly low temperature combustion, NOx will be dramatically reduced while the mixture will be under ultra-lean fuel-air condition, thus able to achieve high efficiency and low emission. In the case of two-stroke engine, problem of poor combustion efficiency and excessive white smoke emission can be addressed by the incorporation some features that will ultimately convert a typical two-stroke engine into an efficient CAI engine demonstrating the best of both features. Due to its inherent high internal residual gas rate in partial load operation, the two-stroke engine has been the first application to benefit from the unconventional CAI combustion process. This paper will concisely discuss the utilization of hot burned gas for induction thus imposing a CAI combustion feature onto two-stroke cycle engine. Among the features incorporated are the increasing in the level of Exhaust gas Recirculation and cycle-by-cycle uniformity of the air-fuel ratio (AFR) supplied to cylinder, which will be crucial in creating a suitable temperature within the engine’s combustion chamber.
Drag Reduction of Bamboo and Abaca Fiber Suspensions in Circular Pipe
Authors: Kapal Gunawan , Baqi M. , Fathernas S. , Yanuar
Published: August 2013

The drag reduction of dispersions of fibers in aqueous solutions of was studied as a function of concentration with a circular pipe apparatus. Experiments were carried out by measuring the pressure drop. The purpose of this research is to investigate the reduction of pressure drop in a circular pipe with the addition fiber in aqueous solution. Circular pipe with 4 mm of diameter is used in this study. Concentration of bamboo and abaca fibers solutions are 200 ppm and 300 ppm. It was found that fibers solutions give rise to drag reduction in turbulent flow range. Experimental was conducted from low to high Reynolds number up to 55,000. We observed a maximum drag reduction ratio of 7 % at Reynolds number about 35,000 and found that increased by increasing a concentration of fiber solution.
The Electricity Purchasing and Selling Risk Control Optimization Model for Power Grid Corporation
Authors: Zhao Yin Hui , Tan Zhong Fu , Ju Li Wei , Chen Zhi Hong
Published: August 2013

The cost of China Power Grid Company's purchasing power is influenced by the relationship between supply and demand of the industry chain, the impact of price fluctuations in the power purchase market, while, the terminal sales price is controlled by the government, not reflecting the supply and demand changes, which makes the income space of power grid corporation uncertainty, therefore, their operation is facing with risk. The paper constructs electricity purchasing and selling risk control optimization model for power Grid Corporation after considering users demand elasticity, electricity distribution in the contract market and real-time market, the compensation cost for users blackout based on the analysis for the influencing factors of Power Grid Corporation and the revenue calculation model.
An Overview of Fruit Waste as Sustainable Adsorbent for Heavy Metal Removal
Authors: Othman Norzila , Mohd-Asharuddin S. , Azizul-Rahman M.F.H.
Published: August 2013

Biosorption is an environmental friendly method for metal removal as it can be used as a cost effective and efficient technique for heavy metal removal. A lot of biomass can be choosed as biosorbent such as waste material from food processing and agriculture.ent. This paper will review the potential used of local fruit rind as biosorbent for heavy metal removal in wastewater. Heavy metals have been in various industries and resulted to a toxic condition in aquatic ecosystem. Therefore, various techniques have been employed for the treatment of metal-bearing industrial wastewaters including biological treatment through biosorption. Biosorption offers the advantages of low cost, good efficiency and production of sludge with high metal content is possible to avoid by the existence of metal recovery method from metal loaded biosorbent. The successful application of local fruit waste in treating wastewater containing heavy metals requires a deeper understanding of how biosorbent material proceeds.
A Research of Shaft Modal Simulation Method Based on the Preloaded Angular Contact Ball Bearing
Authors: Li Bei , Zhang Jian Bin , Jiang Lu Sha
Published: August 2013

In order to analysis modal characteristic of bearing with pre-tightening force on main spindle of numerical control lathe, this paper proposes a model of spindle modality analysis. This model is used to simulate the preloaded bearing shaft system modal, and the simulation results are verified by modal experiment. This paper takes 7005c as the research object to establish the equivalent-spring model based on the Hertz theory considering the pre-tightening force, whose focus is dealing with the contact between bearings rolling element and raceway. Then the model will be used to get the bearing stiffness for finite element simulation analysis. The shafting modal with preloaded bearing test platform is structured to get the shaft system modal parameters, which is compared with and verified the simulation analysis.
Precision Temperature Control System Based on PID Algorithm
Authors: Lv Yong , Niu Chun Hui , Li Yue Qiang , Chen Qing Shan , Li Xiao Ying , Liu He
Published: August 2013

A precision temperature control system that uses ATmega128 as the main control microcomputer is built. The temperature is sensed by a Pt100 thermistor, and then converted into the voltage signal by a temperature transmitter to the microcomputer. Two kinds of digital PID (Proportional-Integral-Differential) algorithms are adopted to control the output power of the thermo-electric cooler (TEC) automatically. The test results of the improved temperature control system show that the set-up time of this system is about 340s and the temperature control accuracy is up to±0.1°C.
Design and Experiment of Intelligent Grape Bagging Robot
Authors: Zhang Kai , Zhao Li Ning , Zhe Sun , Geng Chang Xing , Li Wei
Published: August 2013

In China, Grape bagging was done by mostly manual work. In order to improve the intelligence level of grape bagging and reduce the amount of human labor, a robot system for grape bagging was developed. The hardware structure of robot system was designed based on cylindrical coordinate. One kind of grape extraction algorithm based on 2G-R-B was developed. And the control system of grape bagging robot was completed. The robot could realize starting the machine automatically. The performance test of grape bagging robot indicated that the success rate for bagging grape was 85%, and the execution time of a single bagging cycle was 39.6s.
Air Pollution by the Exhaust Emissions from Construction Machinery under Actual Operating Conditions
Authors: Lijewski Piotr , Merkisz Jerzy , Fuc Pawel , Kozak Miloslaw , Rymaniak Lukasz
Published: August 2013

The paper discusses the problem of exhaust emissions from non-road vehicles. In many cities there are low emission zones for vehicles. Unfortunately non-road engines are excluded from this restriction e.g. construction machinery operates on construction sites, including those located in the said zones. Therefore, the paper presents the results of the exhaust emission tests from an excavator under actual operating conditions. For the tests the authors used a portable exhaust emissions analyzer SEMTECH DS by Sensors for the measurement of gaseous exhaust emissions and SEMTECH LAM for the measurement of the emission of Particulate Matter. The analyzers provide an on-line measurement of the concentrations of the exhaust components under actual operating conditions. The tests performed under actual traffic conditions provide invaluable information regarding the emission during actual operating conditions. In the paper the authors analyzed the relations between the engine operating parameters, vehicle parameters, road conditions (traffic congestion) and the exhaust emissions. The authors, despite differences in the methodology, also presented a comparison of the obtained results with the currently applicable exhaust emission limits in order to draw attention to this issue in urban areas.
Moisture Diffusion Characterization of Carbon Fiber Based Polymeric Composites Under Recurrent Hygrothermal Ageing
Authors: Bhatti Imran Shaban , Yan Zhao
Published: August 2013

In this article moisture diffusion characterization of carbon fiber based polymeric composites (5428/CCF300 and 5405/CCF300) under recurrent hygrothermal ageingis investigated experimentally and numerically. Diffusion kinetics is studied by using Fickian and Langmuir diffusion models. Composite interface surfaces were closely studied by electron microscopy during the absorption/ desorption process, which revealed that micro-crack near weak interface provide passages for water diffuse.To simulate harsh service environment, understudied specimens were go through high humidity and high temperature (85°C and 120°C) conditions and then interlaminar shear strength (ILSS) properties of composites were determined. This study found that the interface property has effect on absorption/ desorption behaviour as well on ILSS. Validation of experimental results is carried out by using finite element analysis. In sum, this research attempts to analyze the behavior of carbon fiber composites underre current hygrothermal environment for the purposes oflong-term service prediction.
Mechanical Properties of Polypropylene Fiber Reinforced Concrete Pavement
Authors: Lu Chun
Published: August 2013

concrete materials with low tensile strength, easy to crack, and the brittleness of the shortcomings in the polypropylene fiber concrete can improve performance. The compressive strength and flexural strength of the mechanical properties of polypropylene fiber reinforced concrete pilot study shows that the fiber content and curing age a great influence on the mechanical properties of polypropylene fiber reinforced concrete, the polypropylene fibers affordable dosage take1.5 percent is appropriate.
Research on Low-Carbon Tourism Development Path of Qinghai Lake Scenic Area
Authors: Li Jiong Hua , Zhou Rong Zhu , Zhu Ying Bo
Published: August 2013

Nowadays, the international community pays attention to the climate change and environmental issues. The strategy of low-carbon tourism has gradually become a realistic choice for the tourism development in the every country. Qinghai Lake scenic area is the leading scenic area of tourism development in Qinghai Province and the key area of tourism development in western China. Therefore, the low-carbon development is the only way. This paper analyzes the necessity of low-carbon development in tourist scenic area, respectively from tourism development and construction, operation and management, tourism attractions, tourism production and tourism consumption, and then discusses the low-carbon development path in Qinghai Lake scenic area.