bluuebunny/crossref_metadata_2025 huggingface dataset:
Design Radiation Mode Sensors Based on Piezoelectric Fibers for Beam Structures
Authors: Mao Qi Bo
Published: March 2013

This paper presents a new method for sensing the radiation mode amplitudes by using piezoelectric fibers for vibrating beams with different boundary conditions. Two straight and one curved fibers bonded on the surface of the beam are taken as a sensor. The sensor output is defined as the output current of the curved fiber subtracting the output currents of the other two straight fibers. By means of designing the appropriate shape of the curved piezoelectric fiber, the sensor output can directly lead to the corresponding radiation mode amplitude of the beam. The equations which define the curved sensor shapes are independent of the type and position of the external excitation. Finally, a numerical example is given and the effects of shape error and location error of such type sensor are discussed.
A New Approach to Quality Detecting and Measuring of Earth-Fill Dam
Authors: Yang Hai Ning
Published: March 2013

Based on some at present advanced geophysical methods, a non-destructive detection method mainly depending on ground penetrating radar(GPR) has been established by combining with Rayleigh wave method and natural electrical field method. The quality of earth-fill dam not only can be evaluated and analyzed quickly, but also multi-method, multi-parameter, multi-information can be undertaken quantitative analysis through considering geo-technical test and geophysical information. After this method has been successfully applied to Xixia earth-fill dam detection, it is indicated that modern geophysical methods is effective to detect the diseases and faults in dam quality and this method is worthy of popularizing and application in the future.
Design of Collection Tube with Wireless Monitoring System for Cotton Stack Temperature and Humidity
Authors: Cong Teng Da , Kan Za , Zhang Ruo Yu , Jiang Ying Lan , An Hong Lei , Li Xiao Liang
Published: March 2013

Due to the limited capacity of cotton-processing factory, machine-collecting cannot make sure the process progressing in time and will cause a bad heat dissipation of cotton or a high temperature and humidity. A cotton temperature and humidity wireless monitor is designed to solve the problem. In our experiment, we find that the collecting holes of the collecting tube play the most important part in the data collection. Comparison is made about the performance between round holes and diamond holes using FLUENT, we get the result that the diamond holes have a better collecting effects and a higher collecting accuracy.
Insulation Measurement System Design and Implementation
Authors: Wu Jun Sheng
Published: March 2013

Insulation measurement system performance influence of insulation material selection formula as well as the material production and quality. This paper introduces the insulation performance measuring system and control theory, and the ablation experiments of main technical parameters and data processing and insulation material performance evaluation standards: adiabatic index, the linear ablation rate, mass loss rate calculation and evaluation.
Preparation and NH3-Sensing Properties of Lead(II) Tetrakis(4-Cumylphenoxy) Phthalocyanine Spin-Coating Films
Authors: Zhou Xiao Qing , Wang Bin , Han Zhi Xue , Wu Yi Qun , Chen Zhi Min , He Chun Ying
Published: March 2013

Spin-coating films of Lead(II) tetrakis(4-cumylphenoxy) phthalocyanine (4-PbPc) were prepared and characterized by FT-IR and UV-vis spectra. The results show that the ideal different thickness spin-coating films of 4-PbPc are fabricated by different spin-coating concentration. The response of the films was investigated with respect to NH3 at room temperature. Moreover, the response and recovery properties and the effect of the film thickness on gas sensing performance are also discussed. The results indicate that the films display a high and fast response and good reversibility to NH3 and the 4-PbPc spin-coating films which could be explored as an NH3 sensor at room temperature.
Method of Acquiring Current in Fault Line Based on Principle of Continuity for Electric Current
Authors: Zheng Xiu Yu , Huang Na , Chen Wei
Published: March 2013

In transmission network, according to that current in each no-fault line connecting to same bus bar is so far less than current in fault line and CT isn’t saturated or a little, a method of acquiring current in fault line based on principle of continuity for electric current is proposed. It acquires current in fault line through measuring currents in no-fault lines connecting to the same bus bar, even considering influence from distributed capacitance of bus bar in time domain analysis. Simulations indicate that the method is correct, and can eliminate or effectively diminish influence from CT saturation.
Feature Extraction Based on the Multiple Harmonic Analysis of 2-Dimensional Pattern of Partial Discharge
Authors: Gong Yu Long , Guo Jin Xi , Guo Hong Fu
Published: March 2013

Partial discharge will cause deterioration of insulation of high-voltage electrical equipment, resulting in insulation breakdown and short circuit accident. In order to ensure the normal operation of the high-voltage equipment, it is necessary to detect partial discharge online. By using Ultra High Frequency (UHF) defection method, statistical 2-dimensional (2D) patterns of partial discharge are obtained. Extracting the envelopes of the 2D patterns, we do the harmonic analysis for patterns’ envelopes, and the harmonic components are used as a characteristic parameter for defect type’s recognition. The results show that the harmonic components can be used as characteristic parameter for defect types’ recognition. This method has the characteristics of strong real-time and simple operation.
Harmony Response Analysis of a Simple Supported Beam Steel Bridge Based on ANSYS
Authors: Wang Dong Li , Li Tong
Published: March 2013

The purpose and meaning of bridge health monitoring is sketched in this paper. In order to study of the structure of the bridge health monitoring problems, First of all, a finite element model for simply supported steel beam is set up on the basis of the Finite Element Theory and the software ANSYS in response to laboratory of the finite Element Theory and the software ANSYS in response to laboratory experient. Identify the different injury by comparing the index value and the rate of change. Through adding instantaneous excitation to the mid-span, do Harmony Response analysis for different injury of steel bridge model to reveal the frequency amplitude diagrams, from these diagrams can be found on the "peak" response. We can identify the different injury by comparing the index value and the rate of change.
Research on Measurement Method for Loss Factor of Viscoelastic Material
Authors: Sun Tie Lin , Sun Hui
Published: March 2013

A measurement method for loss factor of viscoelastic material was researched. When acoustic wave incident to the surface of submerged elastic plate coated with viscoelastic damping layers, according to boundary conditions of interfaces relationship between reflection acoustic wave in water and loss factor of viscoelastic material was derived. The change of loss factor as frequency goes was also simulated. Loss factor is related to frequency and other parameters of viscoelastic material.
Research on the Flow Measurement Method and Equipment of Open Channel
Authors: Wang Cheng Li , Zhao Wei Guo , Dai Lian Chao , Zhu Wei
Published: March 2013

In order to solve the problems of flow measurement and to obtain the sectional velocity distribution of open channel, the FLUENT simulation method was adopted. The velocity-area method based on the sectional velocity distribution was introduced, and the flow measurement equipment of open channel was also designed. The experiment result shows that the error of the method is less than 1%.
Thermocouple Automatic Verificating Device Based on Virtual Instrument Technology
Authors: Zhao Jing Hui , Zhou Bing
Published: March 2013

The thermocouple automatic verification device is constructed of Advantech PCI-1716 bus data transmission automatic calibration multi-function data acquisition card, USB-4718 eight-channel thermocouple input module, JKH-C series SCR phase-shift trigger, PC machine as hardware and the U.S. National Instruments (NI)Labview as software development platform. According to temperature test point determined by thermocouple verification regulation, the device controls the temperature of calibration furnace, acquires the standard and the thermocouple millivolt values automatically and calculates the error at each testing point in line with its measurement data processing formula, realizing the functions such as visual operation interface, test data saving and verification certificate printing. Device accuracy: potential measurement error is no more than 0.005. Resolution: potential is 0.01μV. Temperature control accuracy: error deviating the test temperature is no more than ±5°C when testing it. Temperature stability: the constant change is no more than 0.2°C/min in its testing process. The thermocouple calibration uncertainty is better than 0.7°C and the repeatability error is less than 0.25°C.
Total Transfer Capability Calculation Based on Static Load Model Using Real-Time Fault Recording Data
Authors: Shi Guo Ping , Liang Jun
Published: March 2013

This paper proposes a method calculating TTC and critical voltage using static power model based on real-time recording data, traditional power system dispatching calculation doesn’t consider load model, which does not agree with the real, this paper compares TTC and critical voltage under different load model and P-V curves, on which load model has a strong influence, so load modeling is necessary based on real-time data and is significant for improving system stability. The simulations show necessity and suitability of the method.
Low-Limit Warning of Mine Gas by 2f -Detection Based on Tunable Fiber Laser
Authors: Sun Yan Yan , Chen Fei
Published: March 2013

Mine gas composition is complex, and its main component is methane (CH4), followed by carbon dioxide (CO2) and nitrogen (N2), also contains a small amount or trace amount of heavy hydrocarbon gases (ethane, propane, butane, pentane, etc.) , Hydrogen (H2), carbon monoxide (CO), sulfur dioxide (SO2), hydrogen sulfide (H2S) and so on. For gas detection, the gas compositions above with listed behind CH4 becomes its interference noise. A second harmonic modulation of the fiber laser was used to achieve low concentration of coal mine gas monitoring against a multi-component-gas background noise, and an early warning can be accomplished.
Research of EAN-13 Barcode Identification Based on Unitary Decimalization
Authors: Ding Cai Hong , Zhang Chuang , Yang Yan Zhu
Published: March 2013

This paper has put forward a decimal system based on binary system for representing figures of barcode image. Different with traditional distance of similar line unitary method, this paper invents the unitary decimalize method for EAN-13 image identification. Counting and sorting the times of the number that appears when scan the image to calculate the width of unit bar not use the averaging method, which has the same identification effect but more simple and effective. At last make the corresponding program to verify the method, the result shows this method performs well. It is not only suitable to the horizontal positive-going or reversed-going barcode image but also to the oblique barcode image.
Research on Boundary Detection for Turnout Rail Components Based on Machine Vision
Authors: Dou Yan , Zheng Yu Qian
Published: March 2013

Boundary detection is very important in the size measurement of the turnout rail components using machine vision. A new algorithm about boundary detection based on machine vision system is proposed. First an improved median filtering algorithm was used to noise reduction an image. Second Gabor operator energy diagram is generated. Then an elliptical-butterfly surround inhibition was designed to suppress the textures and enhance the boundary. Last a new binarization method and boundary detection algorithm is put forward according to the human beings visual observation. Experimental results show that the algorithm has good feasibility and effectiveness.
Balance Orthogonal Demodulation with Combined Adaptive Optimization for Interferometric Fiber Optic Gyroscopes
Authors: Li Yong Xiao , Wang Zi Nan , Zhao Da Yu , Yang Yi , Liu Ming , Peng Chao , Zhang Zhen Rong , Li Zheng Bin
Published: March 2013

Interference Fiber Optic Gyroscope (IFOG) is the mainstream Interferometric Fiber Optic Gyroscope (IFOG) is the mainstream optic inertial sensor products of rotation measurement in nowadays. However, short time migration as well as long time bias had been impacting IFOG for the first day it invented. For a better operation of orthogonal demodulation algorithm, which we proposed before had demonstrated an ability of suppressing the noise in IFOG. This article firstly concerning about the initial phase in the orthogonal demodulation of IFOG. Through posteriori estimation we achieved the balance orthogonal demodulation. Secondly, we place the 2 orthogonal channel data obtained from the IFOG, as reference signal for each other into an adaptive filter module, based on the LMS principle, obtaining a real-time improvement of short time migration and long time stability.
Performance and Error Analysis for Automatic Measurement Device of Dissolved Oxygen
Authors: Li Wei Lin , Wang Zhi , Fang Hai Yang , Li Jian Hua , Gao Li Min , Ni Jun Bin
Published: March 2013

Dissolved oxygen (DO) is an important index of water environmental monitoring, to which accurate and rapid determination is of great significance. The automatic DO measurement device, which was launched by Core Company, is able to fast and batch determinate dissolved oxygen in water. Based on this advantage, this study further evaluated the performance of the dissolved oxygen meter as well as analyzed the precision and accuracy of dissolved oxygen determination in different water bodies using mathematical statistics method. The results show that the automatic DO measurement device completely meets the requirements of the national DO automatic analyzer. The instrumental measurement results show high precision and accuracy in different water bodies in addition to the industrial waste water and they keep in line with the traditional iodometry determination results. Experiments of parallel determination of pure water of saturation dissolved oxygen make clear that the determination values of the four electrodes of the apparatus have no significant difference.
Relevancy between Thermochromic and Magnetic Property of La1-xSrxMnO3 (x=0.2 and 0.33) Smart Radiation Thin Film Materials Prepared by Magnetron Sputtering
Authors: Wu Chun Hua , Xu Min , Wang Jie Bing , Li Lin , Zhao Yin Zhong , Zuo Hua Ping
Published: March 2013

La1-xSrxMnO3 thin films with x=0.2 and 0.33 were prepared by magnetron sputtering method for its potential application on thermal control of spacecraft. The materials show a phase transition from ferromagnetic metal phase with a low infrared emittance to paramagnetic insulator phase with a high emittance. Because of the thermochromic property, they can automatically change their infrared emittance greatly in response to environment temperature and thermal load and keep the spacecraft electronic components working normally. A superconduction quantum interference device magnetometer was used to study magnetization over the temperature range 100–315 K. Temperature dependence of total hemispherical emittance was carried out in a liquid nitrogen cooled vacuum chamber by a steady state calorimetric method. Thermal emittance results indicate an obvious tuneability of both La0.8Sr0.2MnO3 and La0.67Sr0.33MnO3 thin films. Compared to La0.8Sr0.2MnO3 thin film, La0.67Sr0.33MnO3 thin film has a higher transition temperature and bigger emittance tuneability. Based on phase separation concept, the thermal emittance was fitted by two-energy-level Boltzmann distribution of metal phase volume fraction fH. The measured magnetization curves were fitted in terms of mean-field approximation theory. The volume fraction of ferromagnetic phase fM was not coinciding with the fH very well. This result showed the fH and the fM plays a different role on thermal emittance property.
Data Transmission System for Ground Automatic Disaster Monitoring in Mine
Authors: Dong Tao , Zhang Jin
Published: March 2013

Data transmission about ground automatic disaster monitoring system in mine is the key technology link. A method based on data transmission system is proposed, which combined Ethernet technology of wire communication and WiFi technology of wireless communication in mine. The system implements a variety of functions including automatic acquisition of deformation monitoring data, remote real-time transmission, and so on. Through systematic research and practical application on the selection of data communication mode, system structure, key technology and so on, it indicates the system is reliable and maintainable, which provides the technical support for mine's safety and high-efficient production.
Humidity and Temperature Wireless Measurement System Based on NRF905 and SHT11 in Coal Mine
Authors: Yang You Liang , Su Li Hu , Ma Cui Hong , Meng Fan Wei
Published: March 2013

In order to measure the humidity and temperature of coal mine accurately, design uses low power microprocessor MSP430F2274 as control chip in this system, data acquisition by digital temperature and humidity sensor SHT11, taking nRF905 as the core of the RF module for wireless transmission, measurement results by LCD display and transfer to PC through CAN bus at the same time. To solve the traditional way of measuring precision is low, cable transmission system needs to be at the measurement site layout of the large number of wires and cables, and the circuit for transmitting signals can be affected by electromagnetic interference problems, ensure the reliability of the measurement results. The design has given the hardware circuit diagram and data flow chart.
Influence of the Q Point on the Extrinsic Fabry-Perot Interferometer Fiber-Optic Sensors with a Diaphragm
Authors: Wang Wen Hua , Jiang Xin Sheng
Published: March 2013

In this paper, the influence of the Q point on the DEFPI fiber-optic sensors is comprehensively analyses. For a DEFPI fiber-optic sensor, the output signals vary with the different position of the operational point regarding to the same applied pressure. The optimal operational point is in the middle position of the fringe linear scope. In addition, we present a novel structure sensor to guarantee the stableness of the Q point.
Review on Remote Sensing of Atmospheric Turbulence Profiles by Laser Guide Stars
Authors: Qiang Xi Wen , Zhao Jun Wei , Feng Shuang Lian , Wu Min , Chang Jing Yong , Zong Fei , Song Jian Ping
Published: March 2013

Ranged-resolved profiles of atmospheric turbulence are necessary and important for many applications in astronomical and adaptive optics communities. In order to characterize the vertical atmospheric structure in field, a technique is put forward to remote sensing ranged-resolved profiles of atmospheric turbulence by combined with laser guide stars and differential image motion method. Laser guide stars are formed at several successive altitudes by projecting pulsed laser, returned signals of images are received by a optical system with two receiving telescopes, and variance of centroids distance is derived from the images with two spots at the same altitude. So, based on a inversion algorithm, atmospheric turbulence profiles are retrieved from differential image motion variance of distance of centroids at various altitudes. The structure constants of refractive index of atmosphere range from 10-14m-2/3 at lower altitudes to 10-16m-2/3 at higher altitudes are remote sensed experimentally. The results show it is a effective method that combined laser guide stars with differential image motion method and could sense atmospheric turbulence profiles remotely in real time.
Key Technique for Inner Hole Diameter Measure with Capacitive Probe
Authors: Ma Yu Zhen , Yu Yong Xin , Wang Xin Hua
Published: March 2013

The capacitive probe for inner hole diameter measuring was introduced, the equipotential guard ring technique was adopted to eliminate edge effect of capacitive probe effective measuring electrode, the driving cables technique was used to reduce the influence of parasitic capacitance, and then we realize the precision measurement in any section of inner holes for diameter from Φ1.85 mm to Φ7 mm.
Study on Test of DMB-T Signal Based on Software Defined Radio Technique
Authors: Li Shan Shan , Zhou Jian
Published: March 2013

With the release of the standard, digital television terrestrial broadcasting is being gradually extended in many places. In order to speed up the extension and the application, also to evaluate the existing digital television terrestrial broadcasting system, we need a easy-to-use signal analysis and measurement system. The traditional signal measurement method is through the special hardware circuit to realize, but that method is high cost, and the system structure is complex and single function. To improve the flexibility of the system , we realize the system based on virtual instrument technology. In hardware section, this thesis described the block diagram of the system and the introduction of the NI vector signal analyzer. In software part, this thesis described the overall test system based on LabVIEW and the realization of the system features multi-threading, each step of synchronization signals achieved. The image Fig. 3 and Fig. 4 show the result of this system test software system.
Improved Frequency Shifting Realization for the Delayed Self-Heterodyne Interferometric Linewidth Measurement
Authors: Yang Yi , Xiong Si Ya Dong , Wang Zi Nan , Li Yong Xiao , Liu Cheng Long , Peng Chao , Zhang Zhen Rong , Li Zheng Bin
Published: March 2013

A new implementation of frequency shifting for the delayed self-heterodyne interferometer (DSHI) is proposed in this paper. In order to avoid the costly and complicated acoustic-optic modulator to shift frequency in the DSHI, we propose that a phase modulator can be used instead. The alternative strategy simplifies the complexity of the DSHI setup, as well as reduces the modulation-induced noise by modulating the two arms of DSHI at the same time. Theoretical and experimental analysis show that such a strategy successfully fulfills the frequency shifting function for the DSHI and accurate measurement of a laser’s linewidth and lineshape is realized correspondingly.
Measurement of Shockwave Speed Based on Critically Curved Fiber Loops
Authors: Zhao Jun Wei , Chen Shao Wu
Published: March 2013

A method was proposed to measure shockwave speed from explosion based on critically curved fiber loops, and a device was developed to validate the feasibility of this method. The principle, configuration and validation experiment of the measurement were discussed in detail.50g explosive was ignited and the speed of nearly MPa level shockwave was measured successfully. It is proved that the method and device based on critically curved fiber loops are practical and effective for the shockwave speed measurement.
Research on the Refractive-Index Gradient Sensor Based on Gaussian Apodized Fiber Bragg Grating under Uneven Medium
Authors: Zhao Ming Fu , Wang Ying , Luo Bin Bin
Published: March 2013

Based on the fiber waveguide theory and the transfer matrix method,Research on the reflection spectrum of Gaussian apodized FBG which cladding were completely corroded under uneven medium.During the stimulation process,consider high refractive-index(1.43-1.45) area and low refravtive area(1.33-1.36) respectively.At the same time,suppose the uneven SRI in different linear function distributions.The stimulation result shows the Gussian apodized FBG’s spectrum bandwidth,spectrum intensity depends on the SRI along the grating axial linear distribution gradient.As SRI gradient increases,the gradient sensitivity of high refractive index area and low refractive index area are nm.mm/riu and nm.mm/riu respectively.The results have a definite significance of Gaussian apodized FBG for sensing technology used in biochemical of uneven medium measurement.
Electrochemical Impedance Investigation of the Binding Properties of Phloretin to Egg Lecithin Liposomes
Authors: Shen Ping , Yan Ming Xun , Zhan Xu Qin , Yang Chang Ying
Published: March 2013

Immobilization of egg lecithin liposomes on Octadecanethiol (ODT) modified gold electrodes has been studied. The changes of the resistance of the layer with deposited liposomes, occurred under stimulation by different concentration of phloretin were measured with electrochemical impedance spectroscopy (EIS) and were used for the calculation of association constants. The binding constants Kb was obtained to be (7.571±0.821)×105 L•mol-1, indicated that high affinity existed between phloretin and liposomes.
Pulse Information Detection Based on Image Senor
Authors: Yang Li Ming , Zhang Ai Hua , Liang Fei
Published: March 2013

In order to simulate the diagnosis by feeling the pulse with Traditional Chinese Medicine，the pulse image acquisition system was developed. A CMOS camera attached to a magnifying lens is used to solve the problem that industrial cameras can not carry out the image acquisition in microspur. The improved system could avoid the influence from environment light. The cantilever beam structure was adopted to obtain the pulse-taking pressure value directly and accurately. The thin film is made of the liquid membrane silica gel, which can overcome some shortages of the previous film. The typical pulse images were collected from the MM-3 pulse pattern generator by using the improved system. The results show that the improved system provides reliable conditions for analyzing the pulse information.
Combustible Gas Discrimination by Pattern Recognition Analysis of Responses from Semiconductor Gas Sensor Array
Authors: Sun Ping , Ou Zhong Hua , Feng Xing
Published: March 2013

The qualitative and quantitative identification of combustible gas mixture cannot be realized by a single sensor. Therefore, a semiconductor gas sensor array was built up. The experimental parameters including the dynamic and static information of the sensors were selected. The qualitative and quantitative identification of combustible gas mixture are achieved by the artificial neural network. The results show that this method for the qualitative identification of the combustible gas mixture is completely correct. The highest false rate of the quantitative analysis is 0.38% and the average false rate of the quantitative analysis is 0.079%. Achieve a good qualitative and quantitative identification.
A Novel Method of Disposing Conflict Evidence in Information Fusion
Authors: Chen Bo , Jia Chuan Bao , Feng Ji Cai
Published: March 2013

To solve the problem of conflict confidence in D-S evidence theory, this paper proposed a new method. First a distance function was introduced, then the supporting degree of the evidence by other evidences was calculated, and the BPAs of the evidences were modified by the supporting degree using fuzzy inference theory, and the modified evidences were fused by D-S combination rules. Experiment result showed the effectiveness of the method.
New Evidence Combination Method Based on Redistribution of Global Conflict
Authors: Zhu Jing , Wang Chen Xi , Zhang Cheng Jun , Zhang Shi Kai
Published: March 2013

The combination of high conflict evidence is a research focus in belief function theory, this paper analyzes two major solving strategy of the modifying rule and the modifying evidence body, and proposes a new evidence synthesis method by modifying rule. In allusion to the combination of high conflict evidence and focusing downwards problem, the method constructs new global conflict measurement under the framework of conjunction combination, which can solve the illogicality of of Shafer conflict measurement. Then the paper designs the solution of local redistribution of global conflict, through choosing the reasonable proportion coefficient, which can overcome focusing downwards and synthesis convergence problem together. Compared with other methods, the new method is more effective to solve the combination problem of high conflict evidence, and meet the quasi-association, and has the higher value of application.
Sports Signal Acquisition Based on Miniature Inertial Measurement Unit
Authors: Lu Ze Yuan , Cao Hui Bin , Ma Ting Ting , Yu Qian , Gao Li Fu , Shuang Feng , Ge Yun Jian
Published: March 2013

The proposed method for Miniature Inertial Measurement Unit (MIMU) system enables the exact measurement of sports parameter even under challenging conditions. With the aid of sports biomechanical parameter, proposed method suppresses the drift. The Hilbert-spectrum responds the sports rhythm law. It will provide aided information for trainer.
Development for Cyclic Detection Laboratory of Transmission and Distribution State Maintenance and Test Equipment
Authors: Yuan Heng , Xu Zi Li , Chen Ying , Lei Min , Tao Luo , Zhang Jun
Published: March 2013

Power production department is paying more and more attention to the test results of high voltage test instrument and equipment as the power construction is vigorously developing. Currently, the metrological verification of high voltage test instrument is mainly conducted by metrological department such as provincial Electric Power Research Institute (EPRI) of the Power Grid, and standard appliances of measurement are stored in regular laboratory condition and inspection method of them is bottom-to-top periodic inspection by users, which has the disadvantage of inconvenient inspection. The cyclic detection laboratory developed in this paper, which can support comprehensive calibration and on-site detection for the main functions of mainstream high voltage test instruments of the market, is designed aiming at the requirements of cyclic detection for high voltage test instrument of power system. Operating principles and core technologies of the developed detection equipment are detailed introduced in this paper. By using the developed laboratory, performances of test instruments can be effectively assessed, diverse needs of metrological detection for high voltage test instrument of power system can be further met, and operation safety of power system and economic benefit of power industry can be improved as well as on-site metrological detection capacity being strengthened.
Identification of Voltage Disturbances Based on Phase Space Reconstruction and BP Neural Network
Authors: Hu Zi Teng , Jia Li Min , Yao De Chen
Published: March 2013

A identification method via phase space reconstruction and BP neural network was proposed for identifying three types of voltage disturbances (voltage swells, voltage sag, voltage flicker). In this method, firstly, phase space reconstruction was utilized for describing voltage disturbances; secondly, the mean radius of each cycle of phase space trajectory in accordance with the time-domain was extracted from voltage signals; finally, the identification of voltage disturbances was obtained by BP neural network. The simulation results in Matlab show that the proposed method is capable of high accuracy to identify three types of voltage disturbances, and further validates the efficiency of phase space theory in power quality analysis.
Application of Petrochemical Heat Equipments' State Inspection Based on the Edge Detection of Infrared Image Segmentation
Authors: Cui Lin Lin , Lai Hua , Tang Yong Wang , Qi Ming Jie
Published: March 2013

According to the problem of petrochemical heat equipment status inspection and fault diagnosis, a method based on edge detection of infrared image segmentation was presented studying the infrared image segmentation based on edge detection and combining Roberts operator into best threshold segmentation method to do simulation of buoyant, medium and heavy damaged equipments. Experimental result shows that edge detection operator of best threshold value has ideal effects to the image edge extraction's target area of thermal infrared equipment.
Information Fusion for State Estimation of Power Battery in Electric Vehicle Based on Unscented Kalman Filter
Authors: Zheng Hong Yu , Zong Chang Fu
Published: March 2013

The power battery state of charge (SOC) in electric vehicles is not easy to measure accurately or apply a sensor but the expense is increased. However the variable of SOC is great importance to control of electric vehicles. A power battery model is built by the Partnership for a New Generation of Vehicles (PNGV) model to estimate the state of SOC. In order to make a high accurate estimate for SOC value, an information fusion algorithm based on unscented kalman filter (UKF) is introduced to design an observer. The test results show that the observer based information fusion and UKF are effective and accuracy, so it is may apply it the electric vehicle control and observation.
Utilization of Augmented Reality Elements for Visualization of Operational States of Manufacturing Devices
Authors: Novak-Marcincin Jozef , Janak Miroslav , Fečová Veronika , Novakova-Marcincinova Ludmila
Published: March 2013

This contribution deals with possibilities of using the elements of augmented reality for generation of aided view to the manufacturing devices that work separately or as a part of production line. Idea of augmented reality is present in the form of special displaying unit based on utilization of half-silvered mirror which works on the principle of combination of two attributes – transparency and ability to reflect. With this mirror placed between worker and machine, different useful data and images can be added directly into real viewpoint, what can aid the diagnostic of machines and handling of their operational states and relevant issues.
Air Quality Improvement by Reduction of Gas Turbines Emissions
Authors: Žarnovský Jozef , Petková Viera , Drlička Róbert , Dobránsky Jozef
Published: March 2013

The most serious sources of the air pollution are the studied company compressor stations of the transit system equipped with the number of gas turbine. [1] Pipeline parts have smaller degree of importance and gas boiler and emergency resources of thermal and electric energy have minimum influence. These sources emit into atmosphere mainly nitrogen oxide, carbon monoxide, paraffine with the exception of the methane and unburned rest of the fuel. In comparison with these emissions are emissions of sulfur dioxide and the solid contaminations substances minimal, insignificant. Along with reduction of transit performance deploys the company in recent time significantly more energy effective power units for transit of natural gas. These drive units are mainly gas turbines burning part of transported natural gas. [2] Russian natural gas is used as a fuel which in comparison with the others kinds of fuels contains only little amount of sulfur and contain almost no As, Na and heavy metals. The main parts of combustions are CO2, CO, NOx which are products of burning and N2, O2, untouched atmosphere elements. CO and NOx are considered to be harmful substances.
Assessment of Statistical Signification of Factors by Machining Inhomogeneous Materials – WPC
Authors: Zajac Jozef , Hutyrová Zuzana , Tarasovičová Adriana
Published: March 2013

The articles deals with the problem of the evaluation of the input parameters influence on the output variables after the machining of the heterogeneous materials. During the turning, the change of the cutting speed, feed (at the invariable depth of the cut) and their mutual interaction has an influence on the final micro-geometric characteristics of the machined area (Rz – maximum roughness depth, Ra – roughness average). The evaluation of the influence (statistical significance) of these set variables is possible to perform via the analytical device tool (Analysis Of VAriance) – two way with replication.
Testing of the ABS Materials for Application in Fused Deposition Modeling Technology
Authors: Novakova-Marcincinova Ludmila , Novak-Marcincin Jozef
Published: March 2013

In paper are presented knowledge about types and properties of materials used for production of models using by rapid prototyping Fused Deposition Modelling (FDM) method. In today used rapid prototyping technologies is used material in initial state as solid, liquid or powder material structure. In solid state are used various forms such as pellets, wire or laminates. Basic range materials include paper, nylon, wax, resins, metals and ceramics. In FDM rapid prototyping technology are mainly used as basic materials ABS (Acrylonitrile Butadiene Styrene), polyamide, polycarbonate, polyethylene and polypropylene. For advanced FDM applications are used special materials as silicon nitrate, PZT (Piezoceramic Material - Lead Zirconate Titanate), aluminium oxide, hydroxypatite and stainless steel.
The Importance of Forging Line Modernization for Material Flow in Drop Forge
Authors: Kapustova Maria , Šimeková Beáta
Published: March 2013

This contribution proposes an optimization of material flow by means of modernizing of forging lines - type induction furnace / crank forging press / trimming press. The basis of design of forging line treatment is placement of hydraulic shear machine for shearing of heated bar to semi-products before respective forging of forged pieces. This method helped to remove previous redundant workplace for semi-products preparation, which causes reduction of technologic operations and substantial decrease of material flow in die forge. Proposed variant of material flow optimization brings economic profit by means of reduction of production times and fuels costs intended for pallets transport. Given save will be interesting for die forges as it contains also calculation of logistical effect.
Application of Synchronizing Procedure with Multistage Variants of how an Assembly Operation Process in the Design Layout of the More Assembly Lines Workplace
Authors: Cibulka Viliam
Published: March 2013

This paper deals with the knowledge of the author of the application procedure for synchronizing with multistage operations variants of how an assembly processes in the design layout of the workplace of more assembly lines and its verifying the selected applications. This is a new balancing method, which allows for the set as follows to minimize the number of workplaces more of that line. Operations synchronizing on the assembly process over the line in a question is performed by exchanging variant ways of making assembly operations, technological advances over the present line of products according to their coefficient of efficiency. Switching of variations on how an operation is achieved minimizing the total idle time line of more in question line and at the same time increasing of product added value flow of before stated arbor line in question. Algorithm of synchronizing operations assembly processes of more lines in question takes place in two stages. Use them to reach new designs layout of workplaces over the routes with fewer offices than in the first stage, but with a lower total cost (purchase and production) and these are also evaluated by the coefficient of efficiency over the present line. The highest increase in the value of the flow of value-added variant achieves the highest value of the coefficient of efficiency over the present line. The aim of synchronizing the application of the proposed action is to increase the flow of value added products in question more assembly lines and flexible response to customer needs.
CAN Message Filter Algorithms for Remote Diagnostics of Vehicles
Authors: Trohák Attila , Illés Béla , Biró Zoltán
Published: March 2013

Remote diagnostics means the substitution of regular in-place diagnostic processes with methods based on telecommunication networks. This includes online monitoring of the vehicles' On-Board systems. Those corporations run on logistics, transportation, using these devices experience in order to increase reliability and decrease down-time of their vehicles. In our paper we introduce our research results on how to make possible remote diagnostics of vehicles through a GSM system. For remote diagnostics through GSM network, it is necessary to reduce the amount of data to be transmitted. We explain our implemented filter algorithms developed into a programmable controller for the reduction of communication load.
Costs Incurred by Designing and Implementing the Logistical Projects in the Activity of Companies
Authors: Grabara Janusz , Man Mariana , Kot Sebastian
Published: March 2013

Under the conditions of the current economic-social development within the industrial companys management, there occurs a new function, that of logistics which has a decisive influence on the companys other functions. Thus, the industrial companys logistics is systematically approached, emphasising its elements, namely: production logistics, commercial logistics, operational logistics, sales support logistics, pilotage logistics. These costs can be deemed as being total costs that depend on the total quantity that is subject to the logistical process. Any activity of logistics within the company can be analysed by means of a questionnaire called Logitest.
System Integration Methods for Voice-Commanded PLC Controlled Systems
Authors: Pinter Judit Maria , Trohák Attila
Published: March 2013

In our paper we introduce a part of our research where we develop a voice-commanded operator surface which can help to improve the efficiency of the operators work. We want to integrate a voice recognition software module to the control system of a monorail. In the paper we will examine the speech recognizer module and the possibilities of integration to the PLC system of the monorail. The integration can be done via serial communication, via Ethernet or via OPC using a SCADA system. Our aim is to create a reliable and cost-effective system.
The Application of Selected Lean Methods for Waste Removal in Logistics of Slovak Industrial Plants
Authors: Vidová Helena , Beluský Martin
Published: March 2013

Logistics is primarily concerned with the question by which functional, organization, personnel and material resources, the information, material and value flow of materials through the whole enterprise can be improved and optimized. By this the logistics gains the integrating business function. However, as many managerial fields and also this one does not work without problems. That is why we will try to describe the main problematic areas, to present some lean methods and the results the company will achieve due to them.
Analysis of Production Process Parameters by Using Data Mining Methods
Authors: Važan Pavel , Tanuska Pavol , Jurovatá Dominika , Kebisek Michal
Published: March 2013

This article deals with knowledge discovery in databases (abbr. KDD) and methodology of this process. The authors give an identification of production parameters and their influence on a production process. Knowledge discovery in the production databases is minimally used for the process of planning and control. There are many problems that occur in the production process. It is important to indentify the impact of manufacturing parameters on the system for managers. New discovered knowledge from production systems will help make the right decision to fulfill the objectives. Using the KDD in the control of production systems, it can be achieved better understanding of system control and can help predict a future behavior of system. The authors formulated general knowledge for improve parameters of analyzed production process. The objectives, steps and some results of the project are presented in this article
Incorporation, Programming and Use of an ABB Robot for the Operations of Palletizing and Despalletizing at an Academic-Research Oriented Intelligent Manufacturing Cell
Authors: Holubek Radovan , Delgado Sobrino Daynier Rolando , Košťál Peter , Oravcová Jarmila
Published: March 2013

Because of the need of expanding the intelligence, functionalities and capabilities of an IMC at the IPSAM, in this paper the authors summarize the process of inserting, programming and using a new ABB robot (IRB 120) for the activities of palletizing and despalletizing of parts and pieces in such a cell. Together with all this, it is also presented a description of the material flow where this robot will be part of so as to better understand its role and interconnections with the remaining devices of the cell. Furthermore, through all the paper several graphics and technical specifications are also given for the sake of comprehension.
Cleaning Technology on Filter Cake of Silicate-Based Polymer Drilling Fluid
Authors: Ye Qin Qin , Zhou Yong Zhang , Chen Dong Sheng
Published: March 2013

In order to evaluate the cleaning effect on filter cake, a set of test device was designed. The cleaning fluid formula and parameters which were elected by experiments were optimized. The weight of the filter cake before and after cleaning was analyzed by wet weight method. New alkaline flush fluid formula was confirmed finally and the washing technology suitable for filter cake of silicate-based polymer drilling fluid has been studied out. The effect of core permeability after cleaning has also been evaluated. The experimental results showed that No.5 formula was suitable for the cleaning filter cake of silicate-based drilling fluid filter, and the weight loss rate could reach 94.09% when cleaning time was 60 minutes. The rotating speed played a minor role in cleaning effect. Weight loss rates increased with the increase of temperature. The weight loss reached 100% when temperature was 90°C. The cleaning fluid could inprove the core permeability up to 900.13% after cleaning, which indicated that the cleaning fluid formula had efficient effect on cleaning filter cake of silicate-based polymer drilling fluid.
Study on Flow Stress Characteristics of AZ31B under Multi-Stage Hot Deformation
Authors: Wu Xin Tong , Jin Zhao Yang , Liu Juan , Huang Xin
Published: March 2013

In order to improve the understanding of the rheological behavior of magnesium alloy AZ31B under multi-stage hot deformation, a series of isothermal compressing experiments with height reduction of 60% were performed at the temperatures of 250°C, 300°C, 350°C and 400°C and the strain rates of 0.01 s−1and 0.1 s−1 on a Gleeble 1500 thermo-mechanical simulator. The effects of temperature (jump), strain rate (jump), deformation degree and deformation interval time on the flow stress characteristics are investigated and discussed. It is shown that in the dual-stage deformation process with temperature jump or strain rate jump, values of peak stress and peak strain at the second-stage are lower than those at single-stage. The reason for this change is due to the deformation stored energy still retained in the material after its release during the first-stage deformation and deformation interval, such as dynamic recrystallization, meta-dynamic recrystallization, static recovery and static recrystallization The deformation resistance of the multi-stage deformation of AZ31B can be reduced by increasing the deformation degree at the first-stage or the deformation interval because it leads to adequate release of deformation stored energy, which improves the plastic formability of magnesium alloy.