bluuebunny/crossref_metadata_2025 huggingface dataset:
The Measurement on Transmission Characteristic of Fiber Raman Amplifier
Authors: Feng Chun Yuan
Published: March 2013

The interaction between the pump and pump, the signal and signal ,the pump and signal in Fiber Raman amplifiers are measured. Three-wavelength pumping at 1427nm, 1445nm and 1466nm, it show that the pump energy transfers from short wavelength to long wavelength, that is, Raman effect exists between the different pumping lights. When the different wavelength signals input at the same time, the output optical power change, which is also caused due to the Raman interactions between different signals. When three-wavelength pumping, the input signal power, respectively 0.03dBm 5.04dBm 15.08dBm, the signal gain values are measured. A significant gain saturation phenomenon in 15.08 dBm appears, and it will intensify as the power increases.
Floor Slipperiness Measurement in a Food Factory
Authors: Li Kai Way , Chen Ching Chung , Liu Li Wen , Chen Chih Yong
Published: March 2013

Floor slipperiness assessment was conducted in a food factory in northern Taiwan. Three areas in the popcorn sector of the factory were measured. The friction measurements were conducted using the Brungraber Mark II slipmeter. A total of 96 measurements of the coefficient of friction on the floor were conducted. In addition, six employees were interviewed concerning their experiences of slipping and falling in the sector and their perception of floor slipperiness. The results showed that all the readings in the measurement areas were lower than 0.5, a safety standard commonly adopted in the USA. All the interviewees reported that they had the experiences of slipping without falling in the sector. All of them reported the floor in the popping area was “extremely slipperiness.” Ergonomic interventions are required and in this sector.
Measurements of Friction Coefficient on Kitchen Floors in Restaurants
Authors: Li Kai Way , Lin Hsuan Cheng , Chen Ching Chung , Liu Li Wen , Chen Chih Yong
Published: March 2013

Friction measurements in the field were conducted in twelve restaurants in Taiwan. Four restaurants for each of the Chinese style, western style, and western style fast food restaurant were visited. The Brungraber Mark II slipmeter was adopte to measure the coefficient of friction (COF) in three areas in each of the restaurant. The results showed that three, two Chinese style and one western style, of the restaurants had mean COF lower than 0.5, a safety standard commonly adopted in the USA. Engineering/managerial interventions are required for those restaurants as far as employee safety is concerned. The fast food restaurants had more consistent COF levels than those of the other two types of restaurants as these restaurants only operate down-stream food preparation in the store. The Chinese style restaurants had significantly (p<0.05) lower COF than those of the western style restaurants. This was consistent with the commonly belief that Chinese style cuisine is much greasy, in general, as compared to those of western cooking.
The Neural Network Method of Index System and Weights for Highway Tunnel Health Diagnosis
Authors: Xie Kai Zhong , Song Bing Hui , Wang Hong Wei , Lv Lin Hai
Published: March 2013

The problem of highway tunnel disease is more and more serious, however, the assessment of health condition for highway tunnel is lack of effective methods. In order to build the health diagnosis system for the highway tunnel, the index and weight system of the assessment model was studied by the neural network method. First, all kinds of highway tunnel disease’s indices are proposed, then, the health grades are founded based on eight classes, finally, the quantitative analysis for weights of index is developed by neural network method. The results show that the weights of health condition index can reflect the actual situation, and can be used in health diagnosis assessment model.
Angle Measurement Research Based on Virtual Instrument Technology
Authors: Yan Shi , Liu Yading , Sun Wei
Published: March 2013

Based on the virtual instrument technology, a structural health monitoring (SHM) system was developed for angle measurement with a platform of graphical programming language (the LabVIEW software) and embedded acquisition system (CompactRIO). This system can realize the real-time synchronous monitoring for the structure’s inclination, and the LabVIEW software was used to compile the program of epistatic machine, which can achieve the system program’s visualization interface aesthetics, and redevelop the program function expansion. Through the experimental verification, the developed system is verified to be practicable and reliable, and the experimental results show that the operating system based on the virtual instrument technology to monitor angles of the structure is stabile and simply operated as well as reconfigurable, which has a good application prospect.
Safety Monitoring Information System of Railway Tunnel Construction Based on GIS
Authors: Suo Ning , Wang Hui Lin
Published: March 2013

This paper puts forward the railway tunnel construction based on GIS for deformation monitoring data analysis as the foundation of railway tunnel construction safety monitoring and risk early warning system. Practice shows that the system in engineering information acquisition, construction deformation data analysis, early warning and monitoring data has obvious advantages. And it is still in help users to make decisions and plays an important role to ensure the safety of tunnel construction.
Optical Compensation for Compressing Polarization Nonreciprocity Induced Errors in Interferometric Fiber-Optic Gyroscopes
Authors: Wang Zi Nan , Yang Yi , Lu Ping , Li Yong Xiao , Peng Chao , Zhang Zhen Rong , Li Zheng Bin
Published: March 2013

Optical compensation is studied for suppressing polarization nonreciprocity (PN) induced errors in interferometric fiber-optic gyroscopes (IFOG). In convention IFOGs, a polarizer is necessarily used, and only one polarization is used for interference in order to achieve low PN error. Differently, we propose a new approach for using two polarizations simultaneously in the IFOG. PN error can be effectively suppressing by optical compensation between the two detected signals. Both simulation and experiment are presented, which shows that PN errors are effectively reduced by optical compensation. This new approach paves the way for low drift IFOGs with no polarizer.
A Brief Review on Measurement Methods and Application of Ultra High Pressure Vessels Employed in Food Processing in China
Authors: Li Rong Li , Liu Xiao Yong , Zhang Shou Qin
Published: March 2013

A review of conventional and optical measurement methods of ultra high pressure vessels (UHPVs) in-service was introduced. Typical engineering applications of these technologies were illustrated. The new trends of inspection methods of UHPVs were discussed. Owe to full-field, non-destructive imaging characteristics with high precision and sensitivity, optical measurement methods had gained more and more attention in recent years. Therefore, DIC was suggested to be developed for experimental inspection of UHPVs in 2D or 3D surface shape and deformations.
Power Spectrum Analysis of EEG before and after the 1/f Wave Electrical Stimulation
Authors: Liang Guo Zhuang , Wei Jing Xia , Zhu Quan Min
Published: March 2013

Power spectrum analysis can make EEG which the amplitude changes with time transformation for spectrum chart which the EEG power changes with time. From the spectrum chart the distribution of the α-wave, the θ-wave, the δ-wave and the β-wave, and the change of rhythm can be observed directly. On this study, the 1/f wave had been applied on the treatment of patients with mental disease , the analysis and the research of EEG before and after the 1/f wave electrical stimulation. The results show that, the 1/f wave electric stimulation has a significant effect for mental disease patients which were caused by structural damage.
Study on Error Factors of Magneto–Optical Current Transformer
Authors: Li Jin Wei , Zhang Yi Ning , Chen Hao , He Jue
Published: March 2013

The working principles of MOCT(Magneto–Optical Current Transformer) based on improved dual optical path detection method is studied. The MOCT’s output could be influenced by both the fluctuation of operating wavelength and the error of intersecting angle of optical axis between polarizer and analyzer . Based on IEC 60044-8 standard, the scope of the photosource wavelength and angle error of photic axis are obtained. The results would be useful for researchers and designers working in the MOCT area.
The Effect of Polarization Control in Loss-Compensated Recirculating Delayed Self-Heterodyne Interferometry Measurement of Laser Linewidth
Authors: Xiong Si Ya Dong , Yang Yi , Peng Chao , Zhang Zhen Rong , Li Zheng Bin
Published: March 2013

In the implementation of the loss-compensated recirculating delayed self-heterodyne interferometry (LC-RDSHI) measurement of laser linewidth, we observe the fluctuations among the different orders of beat spectra, which are not expected according to theoretical analysis and may lead to the distortion of lineshape and inaccurate estimation of the laser linewidth. To explain the observation, we in this paper simplify the polarization model in the recirculating heterodyne ring interferometer containing a polarization controller (PC) and point out the effect of the polarization control in the LC-RDSHI measurement. The simulation result of our model explains well the observed fluctuations.
Based on the FTA of Electronic-Control Engine Start Fault Diagnosis Analysis
Authors: Gong Jian Chun , Zhou Deng Rong , Lu Zong Biao , Mao Zhong Fa
Published: March 2013

Based on the analysis and the induction of electronic control fuel injection engine common failure which can't start, and according to the engine’s working principle and failure mechanism, established the electronic control fuel injection engine’s fault tree, and having made qualitative analysis about the working reliability of the engine by using the fault tree analysis method. This paper offered the electronic control fuel injection engine’s failure form which can’t start in classification, discussed the process of establishing the fault tree at length, even built and mapped the engine’s fault tree which can’t start; According to the natural gas compressor’s fault tree diagram, and applying the descending method to get the fault’s minimal cut sets. By making qualitative analysis, finding out the main influence factors of failure, and putting forward quite perfect methods of removing fault, which providing electronic fuel injection engine maintenance with the beneficial reference.
The Research of High Voltage Electrical Capacitance Tomography System
Authors: Lu De Cai , Wu Ji Xiang , Shao Fu Qun
Published: March 2013

The electrical capacitance tomography (ECT) was used to detect multiphase flows in pipelines, fluidization process and combustion phenomena in internal combustion engines, and so on. In the mentioned applications, none of them has equipment or vessel with inner diameter exceeding 1 meter. Nevertheless, there are some of large equipments like blast furnaces, coal bunkers and so on, need to detect its content distribution. These requirements could be met by ECT technology. But there are not any ECT systems can be used to detect content distribution of those large equipments, because the existing system can not measure the capacitance in change which was changed by content distribution. A new method of high AC voltage excitation and C/V circuits which has a higher excitation voltage about 20~50 times than the previous ac-based system, with an 8-electrodes sensor array that is amounted on a 2.5m inner diameter object constructed a High Voltage Electrical Capacitance Tomography (HVECT) system in laboratory. Image reconstruction experiments show that the HVECT is applicable to monitor the content distribution in the future.
A Research on Positioning Technology Based on Internet of Things
Authors: Zou Dong Yao , Sun Hui , Chen Yan , Li Na Na
Published: March 2013

With the advent of Internet of things, more and more applications require location-based services. This paper firstly introduces classification of positioning technology, then some of the commonly used positioning technology is discussed, and finally the advantages and disadvantages of them are analyzed and compared.
Study on Sitting Postures Recognition in Pressure Cushion
Authors: Bao Jun Rong , Bao Chong Zhi , Li Jian
Published: March 2013

Sitting postures affect their safety in wheelchair for persons with the disability or the ender people. In this paper, it is explored the relationship between the pressure distributions and sitting posture; using density-based clustering methods establish the evaluation model. Real instance verify that the model can accurately predict the relations between pressure distribution and sitting postures.
Electric Power Equipment Condition Intelligent Monitoring by Using Data Mining Method
Authors: Zhang Dong , Zheng Yan , Li Jing
Published: March 2013

Industrial equipment has large amount of historical operation data, and the real-time sampling data is massive and multi-dimensions. This paper proposes an equipment condition intelligent monitoring algorithm based on data mining. The algorithm firstly makes adaptive clustering analysis of historical data on the good running condition of equipment, builds the mathematical model of the equipment, and makes prediction of equipment operation state according to this model and the value of real-time state of equipment operation. This algorithm fully considers the actual demand of industrial application, automatically determines the number of clustering class, solves the problem of large cost and low efficiency of traditional clustering algorithm processing massive historical data, and ensures the efficiency of regression forecasting process.
Automatic Meter Reader Using Zigbee
Authors: May Zazilah , Roselee Mohamad Firdaus Mohamad
Published: March 2013

The real-time monitoring of a data is crucial in ensuring the accuracy of the acquired data. It determines whether the device is properly working or in fault. This paper proposed the design and implementation of a ZigBee-based wireless automatic meter reading system. It focuses on the development of a device that is capable of monitoring meter reader remotely. It sends the data hourly or daily using Zigbee as the transmitting medium. The proposed device uses software; XCTU, Arduino Programming Language, Multisim and hardware; Microcontroller, Pulse generating circuit, Zigbee antenna, 16X2 LCD Display to actually demonstrate the result. This device has a good potential in wireless meter reading due to its low-cost, low power consuming, and low data rate. The input is the pulse generated by the pulsating circuit and the output will be shown onto the LCD display and in the XCTU software proving that it transmitted wirelessly. The results successfully shows the data is received as what it is transmitted.
The Structure Design of the Mini Underwater Robot
Authors: Wei Yu Feng , Liu Fang , Hu Fei , Kong Fan Rang
Published: March 2013

A kind of mini underwater robot is introduced in this artical. Aim at the situation of shallow water area(5m~30m)，we analyzed and designed the structure of the whole robot pertinently, and calculated the underwater movement resistance, which thereby could give theoretical support on the choice of thrusters. The robot detects the underwater situation effectively by high definition camera that installed in the front of the robot, and achieves lifting and turning movement though 3 propellers. The manipulator installed in above of the robot could grab underwater objects effectively.
Performance Calculation and Test Analysis of PDM Lining with Super-Elastic Constitutive Model
Authors: Tian Jia Lin , Hao Rong Ming , Yang Lin , Wang Xin , Fan Zhe , Su Shan Lin , Zhang Guo Wei
Published: March 2013

Based on performance comparison of PDM equidistant and conventional elastomer lining, the impacts on the PDM performance were presented with different equidistant lining thickness. According to the Mooney-Rivlin two-parameter model and the Poisson radio equaling to 0.5, the elastomer is incompressible during the calculation and its relational material parameters such as elastic modulus and shear modulus were determined. The PDM stator and rotor curve equations were established according to hypocycloid theory. The lobe configuration is 3:4, the performance comparisons were investigated including deformation and Mises stress between conventional and equidistant elastomer lining of PDM with contact model. The test data pointed out torque, rotation speed, volumetric and overall efficiency variation results with the motor pressure difference changing from 1.93MPa to 5.90MPa. The presented results could be used for PDM design optimization and performance improvement.
Changes in Magnetic Fields in Tool Steel (SKS93, JIS) under Single Tensile Load
Authors: Kida Katsuyuki , Uryu Megumi , Honda Takashi , Shimoji Teruaki , Costa Santos Edson , Saruwatari Kenichi
Published: March 2013

Fatigue failure of machine components is caused by cyclic load. Non-destructive observation methods that can be related to stress are necessary to study the fatigue phenomena. In the present work, a three-dimensional scanning Hall probe microscope (SHPM) equipped with GaAs film sensors was used to observe the fundamental features of the magnetic fields in a tool steel specimen (SKS93, JIS B 4404: 2006, equivalent to AISI W4 tool steel) during tensile loading. The nature of the magnetic fields during tensile loadings of 430μstrain and 640μstrain was observed using the SHPM. It was found that the magnetic fields decrease due to the tensile loading.
Mixing Enhancement of Two Gases in a Microchannel Using DSMC
Authors: Darbandi Masoud , Lakzian Elyas
Published: March 2013

Microgas flow analysis may not be performed accurately using the classical CFD methods because of encountering high Knudsen number regimes. Alternatively, the gas flow through micro-geometries can be investigated reliably using the direct simulation Monte Carlo (DSMC) method. Our concern in this paper is to use DSMC to study the mixing of two gases in a microchannel. The mixing process is assumed to be complete when the mass composition of each species deviates by no more than ±1% from its equilibrium composition. To enhance the mixing process, we focus on the effects of inlet-outlet pressure difference and the pressure ratios of the incoming CO and N2 streams on the mixing enhancement. The outcome of this study is suitably discussed in the result section.
Analysis on the Movement Effect of Lunar Rover Wheel
Authors: Jin Da Wei , Li Jian Qiao , Fan Shi Chao , Li Hao , Wang Yang
Published: March 2013

It is important to analyze mechanical relationship between lunar wheel and lunar soil for studying passing ability of regolith in lunar soil. Mechanical relationship between lunar wheel and regolith could be reflected by these parameters such as sinkage, drawbar pull, driving torque, motion resistance and slip when the lunar wheel moves. Thus, it is necessary to analyze these parameters of lunar wheel by soil bin test. The test results show that, the four parameters increase with slip and loading, except motion resistance of the test wheel which is under 70N at the speed of 25mm/s. The variations of the four parameters are not significantly influenced by velocity. The variations of the four parameters are significantly influenced by loading.
Punch Forming Simulation Analysis of U Shape Steel Plate
Authors: Cao Fu Yi , Yin Xiao Wei , Wang Bao Shi
Published: March 2013

Punch forming is widely used in many fields such as car industry, aviation, and mechanical industry. Along with the new requirement such as velocity, efficiency, costing of punch forming, there is more and more failure appearance. For example, fracture, fold and spring back. In this paper, a detailed analysis of punch forming is done by FEM(finite element method), and the stresses of punch forming are obtained at every phase of punch. This work is very useful for mold design, punch forming parameters set and material properties test.
Adaptive BP Wavelet Neural Network Method for Soft Fault Diagnosis in Analog Circuit
Authors: Cong Wei , Jing Bo , Yu Hong Kun
Published: March 2013

Because of the diversity and complexity of soft fault in analog circuit, the rapid and accurate diagnosis is very difficult. For this, an adaptive BP wavelet neural network diagnosis method of soft fault is proposed. It combines the time-frequency localization characteristics of wavelet and the self-learning ability of neural network in soft fault diagnosis of analog circuit, and by introducing the adaptive learning rate the diagnosis ability of BP wavelet neural network model can effectively be improved. In addition, PSPICE software is used to obtain the simulation data of actual analog circuit for the experiment. The results also verify the validity of the proposed method.
Synthesis and Characterization of Functionalized Multi-Walled Carbon Nanotubes
Authors: Her Shiuh Chuan , Lai Chun Yu
Published: March 2013

Multi-walled carbon nanotubes (MWCNT) were dispersed in a mixture of sulfuric and nitric acid with volume ratio of 3:1. Carboxylic acid-functionalized MWCNTS (MWCNT-COOH) were obtained by oxidation pristine MWCNTs via sonication in sulfuric-nitric acid. Epoxy-based nanocomposites reinforced with MWCNTs with and without functionalization were prepared. Chemical functionalization of MWCNTs by oxidation (MWCNT-COOH) was confirmed by FTIR. The properties of nanocomposites were characterized using scanning emission microscopy (SEM). Experimental results showed that functionalization of MWCNTs improved the dispersion of MWCNTs in epoxy matrix compared to those containing MWCNTs without functionalization.
Fuzzy Synthetic Evaluation for Aviation Maintenance Support Ability
Authors: Gan Xu Sheng , Duanmu Jing Shun , Gao Jian Guo
Published: March 2013

To improve the evaluation level for aviation maintenance support system and provide a good decision-making for aircraft maintenance support, a quantitative evaluation method for aviation maintenance support ability is proposed. first the evaluation index system for aviation maintenance support ability is given on the basis of factor analysis for aviation maintenance support system, and then using Analytic Hierarchy Process to determine the weight of each influence factor, finally, based on fuzzy mathematics method, the three-level fuzzy synthetic evaluation model is established. The actual example validates is feasibility and effectiveness.
Effective Design and Implementation of Distributed Business Information Systems
Authors: Ocenasek Pavel
Published: March 2013

This paper deals with the effective design and implementation aspects of distributed business information systems. After a short introduction to the state of the art, it proposes a study on a payment protocol design, which is based on the composition method.
On the Effective Internet Communication Filtering
Authors: Ocenasek Pavel , Sveda Miroslav
Published: March 2013

This paper deals with mechanisms designed to security of computer networks and their use in practice. In the first part of the work we reflect on the necessity of the operation of these mechanisms. The second part follows with theoretical description of the technology used according to various criteria. The final part of the work deals with the design of the security system and an example configuration of active network element.
Applying Multi-Agent Approach for the Disaster Rescue Process
Authors: Jiang Feng , Song Liang Tu
Published: March 2013

In the disaster rescue process, how to reduce disaster losses as far as possible has become an important research topic. Based on MAS and complex adaptive system theory, this paper constructs a multi-agent model which contains rescue agents and victim agents. Through the full analysis of behaviors and influencing factors during the process, this model includes judgments of the rescue members, behaviors among victims and the impact of relief supplies.
The Interactive Driving Profile Generation System
Authors: Świder Jerzy , Zbilski Adrian
Published: March 2013

This paper presents the interactive driving profile generation system, which generates setpoint position’s signal, provided to the position and speed regulators. The system based on three equations, which create S-Function. The shape of each part of S-Function is calculated according to desired kinematic parameter values of a driven object. All the parts are connected together in such a way, that keep the parameters description of total movement’s time and total movement’s distance. The system works in interactive and real-time mode, which allows to set all kinematic parameters of movement in a fully dynamic way. The result of this work is an auxiliary block of Simulink software library.
Design of Test Bench for Transmission Efficiency of AMT Actuator
Authors: Hao Jian Jun , Ding Xiao Hui , Wei Jian Wei
Published: March 2013

Transmission efficiency of the actuator is an important aspect affecting the performance of AMT. We design a test bench for transmission efficiency of AMT actuator, witch can be adapted to a wide variety of mechanism. We can get a conclusion that this developed test bench can meet the needs of studying transmission efficiency of AMT actuator and other worm gear transmission.
Design of Methodology for Wood Chips Moisture Evaluation
Authors: Rimár Miroslav , Kuna Štefan
Published: March 2013

Moisture is an important factor of evaluating of burning process efficiency. Unfavorable moisture increases the requirements for energy/fuel consumption which is needed to evaporate water and in a negative manner affects the volume of exhaust gas, the amount of water vapor in exhaust gas as well as the increase in the temperature of the exhaust gas dew point. Thus, wood chips moisture monitoring is a diagnostics tool suitable for the evaluation of operating parameters and a combustion process. The article deals with the design of an appropriate method of measurement and evaluation of wood chips moisture and compares two methods of moisture determining. The problem of moisture determining consists mainly in selecting a suitable method according to the estimation of content of water in wood chips. Another factor to be considered is the fact that moisture in wood chips due to the ambient conditions (temperature, pressure, humidity) changes over time.
Analysis of the Influence of Chemical Content and Microstructure on the Features of Creep-Resisting Steel as the Basis for the Diagnostics, Prediction and Elimination of Fault States of Manufacturing Systems
Authors: Fabianova Jarmila
Published: March 2013

The paper presents the observation of the influences on the features of selected chrome creep-resisting steel concrete parts from material chemical structure, through the influence of heat treatment and by this also the influence of microstructure on the resulting operational features of selected steels. This article has shown results of project VEGA No 1/3173.
Experimental Determination of the Aluminium Thin Sheets Diameter to a Sheet Thickness of 1.5 mm for Two-Cylinder Bending Machine
Authors: Nováková Martina
Published: March 2013

This paper deals with a thin aluminium sheets experimental rotary shaping with use of a testing device. The device consists of two rollers. One of them has an elastic surface. From viewpoint of diagnostics it is necessary to carry out an experiment with defined working conditions for total rotary shaping of a selected sheet.The aim is to shape a thin sheet made of a selected material using different values of thickness and to find out the smallest diameter that could be rotary shaped.
Operating Modes of Pneumatic Artificial Muscle Actuator
Authors: Tóthová Mária , Piteľ Ján , Boržíková Jana
Published: March 2013

The paper describes operating modes of the PAM based actuator consisting of two pneumatic artificial muscles (PAMs) in antagonistic connection. The artificial muscles are acting against themselves and resultant position of the actuator is given by equilibrium of their forces according to different pressures in muscles. The main requirement for operation of such pneumatic actuator is uniform movement and accurate arm position control according to input desired variable. There are described in paper operation characteristics of the pneumatic artificial muscle in variable pressure and then operation characteristics of the pneumatic artificial muscle actuator consisting of two muscles in antagonistic connection.
Microhardness of the Coatings Created by Anodic Oxidation of Aluminum
Authors: Gombár Miroslav , Vagaská Alena , Kmec Ján , Michal Peter
Published: March 2013

Microhardness is a basic controlled quality parameter according to functional coatings, which is linked with a number of physico-chemical properties, such as coating strength, abrasion resistance, resistance to deformation, life. Life of the coating from a diagnostic point of view is influenced by chemical, physical, technological and material conditions of the process of creating film. The paper deals with analysis of the microhardness coating created by anodic oxidation of aluminum with a direct link to the chemical and physical factors controlled by the Design of Experiments methodology at constant anode current density 2 A.dm-2.
Intelligent Traceability System of Containerized Goods
Authors: Abed Mourad , Charfeddine Imen , Benaissa Mounir , Starostka-Patyk Marta
Published: March 2013

In recent year, many countries across in the world have made traceability a compulsory procedure in the Supply Chain. The Supply Chain is distributed collaborative environments involves the acquisition and use of extensive informational and physical flows. The flows management seems a complex task for the actors of the multimodal transport chain which the transport is the major driver in a Supply Chain. The literature reviews throws light on the traceability in the Supply Chain Management (SCM) shows the lack of interoperability and flexibility in data management systems hinders the work of traceability. And it introduces the importance and complexity of multimodal transport operations. To ensure effective traceability all along this chain, we relied on the agent paradigm and the ontology which facilitate the integration of goods data in order to exploit and reuse. Indeed, to ensure communication and interoperability of these data we relied on Multi-Agent Systems, due to their characteristics of autonomy, sociability and responsiveness that are generally associated. The Multi-Agent Systems can build flexible systems whose behaviors are complex and complicated due to the combination of different types of agents. With a focus on the importance of the concept of the traceability, the objective of this work is to propose an intelligent system for the traceability of containerized goods in the context of multimodal transport: Intelligent Traceability System of Containerized Goods (i-TSCG).
Noise Reduction in Voice Controlled Logistic Systems
Authors: Czap Laszlo , Pinter Judit
Published: March 2013

The most comfortable way of human communication is speech, which is a possible channel of human-machine interface as well. Moreover, a voice driven system can be controlled with busy hands. Performance of a speech recognition system is highly decayed by presence of noise. Logistic systems typically work in noisy environment, so noise reduction is crucial in industrial speech processing systems. Traditional noise reduction procedures (e.g. Wiener and Kalman filters) are effective on stationary or Gaussian noise. The noise of a real workplace can be captured by an additional microphone: The voice microphone takes both speech and noise, while the noise mike takes only the noise signal. Because of the phase shift of the two signals, simple subtraction in time domain is ineffective. In this paper, we discuss a spectral representation modeling the noise and voice signals. A frequency spectrum based noise cancellation method is proposed and verified in real industrial environment.
Design of Camera System Location at the Station for Loading and Orientation
Authors: Danišová Nina , Ruzarovsky Roman , Velíšek Karol
Published: March 2013

In this contribution is presented design of camera system location at the station for loading and orientation at the intelligent assembly cell. This intelligent cell is situated at the Institute of Production System and Applied Mechanics. The complex design of camera system is going out the intelligent manufacturing systems knowledge. The cell is used for assembly pneumatic actuators. These actuators are consisting of four parts. These parts - semi products of pneumatic actuators are transported from station for loading and orientation, shelf storage system to the workplace of intelligent assembly cell. At the station for loading and orientation is designed camera system for identification assembly parts (rollers and pistons).
Application of Assembly System Partial Units for the Development of Intelligent Assembly Cell
Authors: Ruzarovsky Roman , Danišová Nina , Velíšek Karol
Published: March 2013

Development of intelligent assembly cell conception includes new solution kind of how to create structures of automated and flexible assembly system. Intelligent behavior of the system as the control system will repose on monitoring of important parameters of the system in the real time. Interaction information will be taken from flexible reaction data. This kind of flexible conception realization of intelligent assembly systems brings many advantages such as, cell will brings flexible reactions of the system to the manufacturing changes, build up area saving, lover building costs, higher using effects of whole device. This conception is developed at Institute of the manufacturing systems and applied mechanics and continues at an intermediate stage of the project. The paper is presented the description of the new conception philosophy, design of the individual units in the system characterized as an intelligent assembly cell, functions principles and expected proceedings in the next phases of the project.
The Time Analysis of Material Flow with Methods Time Measurement Contribution to CSR Implementation at the Level of Industrial Production II
Authors: Beňo Rastislav , Hrdinová Gabriela , Sakál Peter , Šmida Lubomir
Published: March 2013

The importance of forming and implementation the socially responsible society is highlighted by report on the creation of conditions for CSR in Slovakia. Recommendations arising from the report defines the starting points, from which for the article is chosen motivate companies to attend the United Nations Global Compact and other networks that support CSR, as well as the need for the integration of CSR and sustainable development issues in educational process [1, 2, 3, . Companies that support the initiative, as well as direct implementation of the CSR must take action leading to its successful implementation in all areas of business processes, including the logistics and material flow. In the analysis of material flows should be respected the limiting factor of physical load in handling and transport activities that affect the setting of time norm that is required for realization of work activity. The time analysis of material flow allows the identification of time consumption for individual work actions, which are needed during realization of work operation. For time analysis of material flow realization we can use the Method Time Measurement. More specifically, we can use the Method Time Measurement Logistic, which is the subject of this article. Selection of the method is a logical step, which resulted from the needed of responsibility in area of exact decision-making and objective assessment of the efficiency of material flows for minimizing the impact of risk factors. The article provides the information about characteristic of mentioned method, it describe the possible areas of using the method and presents the illustrative example of practical application of method for time analysis of material flow, whereby the main emphasis is on the social aspect of corporate social responsibility through ergonomics and the effectiveness using of time during the work operations realization within the framework of material flow
Effect of Environmentally Conscious Machining on Machined Surface Quality
Authors: Varga Gyula , Kundrák János
Published: March 2013

Modern machining processes continuously face cost pressures and high quality expectations. To remain competitive a company must continually identify cost reduction opportunities in production, exploit economic opportunities, and continuously improve production processes. A key technology that represents cost saving opportunities related to cooling lubrication, and simultaneously improves the overall performance of cutting operations, is dry machining. The elimination of coolants or significant reduction in cooling lubricants affects all components of a production system. A detailed analysis and adaptation of cutting parameters, cutting tools, machine tools and the production environment is mandatory to ensure an efficient process and successfully enable dry machining. Case study is shown for examination of cylindricity error and surface roughness of helical milling machined surfaces by environmentally conscious way.
Evolution Algorithm for Job Shop Scheduling Problem Constrained by the Optimization Timespan
Authors: Koblasa František , Manlig František , Vavruška Jan
Published: March 2013

Nowadays, production scheduling is a greatly debated field of operation research due its potential benefits for improving manufacturing performance. Production scheduling, however, despite the increasing use of APS (Advanced Planning and scheduling Systems) and MES (Manufacturing Enterprise Systems) is still underestimated and one frequently encounters more or less intuitive scheduling using excel spread sheets at workshop level, mainly in SME (Small and Medium Enterprises). Some of the main reasons for this are the complexity of related algorithms and the timespan of the optimization manufacturing operation sequence. The complexity of the algorithms usually leads to a number of operators which are difficult to set up for a usual workshop foreman or manufacturing planner. That is why dispatching rules are widely used in comparison with advanced heuristics, such as Evolution Algorithms (EA). Therefore, operation research should not focus only on getting the best values of the objective function by problem based operators, but also on industrial practice requirements such as operator simplicity and a low timespan of the optimization. This article briefly introduces key principles of the scheduling system developed for the Job Shop Scheduling Problem (JSSP) type of manufacturing. An implemented EA with random key representation, clone and incest control and chromosome repair algorithm is briefly explained. Further, the test results of the evolution operator (e.g. crossover and selection) are presented with respect to the value of the objective function and timespan of the optimization. The research goal is to develop a principle of automatic optimization using EA, where the single parameter to set is required optimization timespan.
Mathematical Modeling of the Unit Load Formation
Authors: Illés Béla , Bognár Gabriella
Published: March 2013

A fast and efficient way of handling and storing components, raw materials, semi-finished and finished products play a significant role in the development of transport, storage and distribution design within the supply chain. One of the most important issues in storage and transport processes is the formation of unit loads. Our main goal is to give a mathematical description of a model involving the major factors of the unit load formation. The optimization process is exhibited applying the determined objective functions and constraints related to the basic tasks.
Settings, Experimentation and Evaluation of the Simulation Models
Authors: Manlig František , Havlik Radek , Gottwaldova Alena
Published: March 2013

This paper deals with research in computer simulation of manufacturing processes. The paper summarizes the procedures associated with developing the model, experimenting with and evaluating the model results. The key area is of experimentation with the simulation model and evaluation using indicators or multi-criteria functions. With regards to the experiment the crucial variables are the simulation model. The key ideas are to set the number of variables, depending on what a given simulation will be. For example, when introducing new technology into production, modify the type of warehouse, saving workers, thus economizing. The simulation models for the operational management uses simplified models, if possible, a minimum number of variables to obtain the result in shortest possible time. These models are more user friendly and the course will be conducted mostly in the background. An example of a criteria function is the number of parts produced or production time. Multi-criteria function has given us the opportunity to make better quality decisions. It is based on the composition of several parameters, including their weight to one end point. The type of evaluation functions, whether it is an indicator or criteria function is selected and based on customer requirements. In most cases it is recommended to use the multi-dimensional function. It gives us a more comprehensive view of the results from the model and facilitates decision-making. The result of this paper is a display of setting parameters for the experimentation on a sample model. Furthermore, the comparisons of results with a multi-criteria objective function and one-criterion indicator.
Virtual Reality Modeling Language as Tool for Automated Workplaces Simulation
Authors: Novak-Marcincin Jozef
Published: March 2013

Virtual Reality Modelling Language (VRML) is description language, which belongs to a field virtual reality (VR) system. The file, which is in VRML format, can be interpreted by VRML explorer in three-dimensional scene. VRML was created with aim to represent virtual reality on Internet easier. Development of 3D graphic is connected with Silicon Graphic Corporation. VRML 2.0 is the file format for describing interactive 3D scenes and objects. It can be used in collaboration with www, can be used for 3D complex representations creating of scenes, products or VR applications VRML 2.0 enables represent static and animated objects too. Interesting application of VRML is in area of automated workplaces simulation.
Flexible Assembly Cell Optimization by Operational Analysis
Authors: Javorova Angela , Kusa Martina , Matúšová Miriam
Published: March 2013

Operation analysis one of the system scientific disciplines closely related to system engineering. This discipline is part of praxeology. Praxeology deals with the research effectiveness of the procedure methods for all areas of human activity. The aim of this analysis is creating solved situation model and their optimization. Optimization is model extremes finding. There are model parameters values that output achieved minimum or maximum. Competitive environment is the reason for finding optimal solutions in the production process.
Methods of Identifying the Workspace of Modular Serial Kinematic Structures
Authors: Svetlík Jozef , Demeč Peter
Published: March 2013

The article analyzes the possibility of automatized generation of workspace resulting from random movement of the end module of a serial kinematic chain by means of numerical mathematical analysis. The methodology is applicable to physical structures with various degrees of freedom of movement. The newly proposed concept of a universal rotation modulus with an optimized 90° interface curvature provides the possibility to construct such physical structures, and the referred methodology identifies their main feature - the scope and shape of workspace.
Modular Welding Fixtures for Robotic Cells
Authors: Semjon Ján , Hajduk Mikuláš , Jánoš Rudolf , Vagaš Marek
Published: March 2013

This paper describes the proposal of welding fixtures which achieves pre-arrangement of individual parts of fixture based on suitable modules. Also is focused on methodological process of their design using modularity principle and reconfigurability. Describe procedure of designing fixture with emphasis to specific requirements for welding fixtures in robotic welding. Take advantages of simple substitution of individual modules welding fixtures by database compatible with modules in 3D environment. Optimization and control of collision status is realized in simulation environment ABB Robot Studio.
Monitoring of Operational Load of Disintegrative Machines
Authors: Beniak Juraj
Published: March 2013

Determination of operational parameters of disintegrative machines and also other machines and devices is important in terms of effective management of the operation of machines, but also as an important indicator that can be used in the design process and dimensioning of machines and devices. Any operating parameters that we can measure and record during operation of the machine are significant help for understanding of processes which are taking place in the process and by this can be used for further improvement of structure and function of a machines or devices. The following article deals with the monitoring of operating parameters of disintegrative machine. It also describes the measurement methodology and evaluation of measured data.
Effect of Diffusion Heat Treatment on Thickness of Cold-Rolled Cu/Al Composite Laminate Interface
Authors: Yuan Xiao Guang , Lv Lin , Huang Hong Jun , Zuo Xiao Jiao , Liu Huan
Published: March 2013

The experiment has taken composite algorithm of cold rolling to prepare copper and aluminum composite laminate, studied the influence of diffusion heat treatment on the interface of copper and aluminum composite laminate. After Analyzed the relationship between the thickness of diffusion layer and diffusion heat treatment parameters, the experiments show that diffusion heat treatment temperature and diffusion time has influence on formation and size of the diffusion layer. At the same heat treatment temperature, the thickness of diffusion layer has parabolic relation with diffusion time with diffusion time extending and thickness of diffusion layer increasing. And the thickness of diffusion layer is increasing at the same heat treatment time. And the thickness of diffusion layer has exponential relation with diffusion heat treatment temperature. Quantitative analyzed the relationship between diffusion heat treatment parameters and diffusion layer thickness, and established a formula to describe the interface thickness and diffusion of heat treatment temperature and time.
Tribological Properties of DLC Films Deposited at Different Time under Low Temperature
Authors: Chen Wen Gang , Ge Shi Rong
Published: March 2013

The tribological properties of DLC(Diamond like carbon) films deposited for different time on mono-crystalline silicon were investigated by using the UMT-2 micro friction and wear tester. The surface topography, composition and hardness of the films were determined by three-dimensional topography instrument, Raman spectrum and nano mechanics tester. The worn surface topography of the films deposited for different time were observed by scanning electron microscopy. The results show that the thickness of the films deposited for different time is nonlinearly increased with the deposition time. The films are the standard nano-films. The surface hardness of the films is low because the films contain hydrogen composition and the deposition temperature is very low. The films deposited for different time have a good anti-friction property, which is improved when the deposition time is prolonged.