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Online since: October 2007
Authors: A.A. Shaikh, S.A. Channiwala
The deviation of proposed model is observed under
predictive for experimental data available in literature while the experimental results obtained in
present work is also found to be on lower side to that of available predictive models from literature.
The void content in the composite plays an important role in governing the strength [5, 13], and hence void content in specimen was also evaluated using data of volume of specimen measured by water displacement technique and constitute properties.
Comparison of Model Predictions for Transverse Fiber Composite with Experimental Data of Gibson [6] Fig 4.
The model proposed adequately represents the experimental data with the deviation of the order 0.90 %.
The comparison of present model with experimental data from literature also reconfirms the same.
The void content in the composite plays an important role in governing the strength [5, 13], and hence void content in specimen was also evaluated using data of volume of specimen measured by water displacement technique and constitute properties.
Comparison of Model Predictions for Transverse Fiber Composite with Experimental Data of Gibson [6] Fig 4.
The model proposed adequately represents the experimental data with the deviation of the order 0.90 %.
The comparison of present model with experimental data from literature also reconfirms the same.
Online since: October 2011
Authors: Ke Zhang, Yu Hou Wu, Song Hua Li, Shi Chao Chen, Feng Lu
In order to ensure the smooth operation of high-speed spindle and realize the dynamic balance of the spindle, it is necessary to make a rigorous precision testing for the precision-processed spindle and obtain reliable data to meet the design standards and performance requirements of all ceramic high-speed spindle.
The basic principles of the work is through the detection sensor (probe) and the measurement space with the axis of movement, side head system to detect three-dimensional coordinates of points to pass measurement software, and then calculated by the analysis software to complete the measured point (point group) of Analysis of fitting the measured reduction of the final geometric elements, and on this basis to calculate the theoretical value (nominal value) between the deviation in order to complete the work on the part is measured.
First, after the ceramic spindle cleaned the table into the coordinate measuring machine, and the establishment of part coordinate system, then measured to determine the coordinates of the center of the hole position in the automatic measurement system LSP side head data collection and measurement software spread Roundness on the size of the assessment, measured in the collected data, input into the computer for analysis calculation, and output the measurement results.
Through the analysis of testing the roundness error measuring data.
Table 3 Different sectional internal hole cylindricity error measurement section 1 2 3 4 5 cylindricity error 1.8 2.0 1.8 1.4 1.8 Through three coordinates of the cylindricity error analysis of the measuring data, the error can completely satisfy zirconia ceramics spindle design requirements.
The basic principles of the work is through the detection sensor (probe) and the measurement space with the axis of movement, side head system to detect three-dimensional coordinates of points to pass measurement software, and then calculated by the analysis software to complete the measured point (point group) of Analysis of fitting the measured reduction of the final geometric elements, and on this basis to calculate the theoretical value (nominal value) between the deviation in order to complete the work on the part is measured.
First, after the ceramic spindle cleaned the table into the coordinate measuring machine, and the establishment of part coordinate system, then measured to determine the coordinates of the center of the hole position in the automatic measurement system LSP side head data collection and measurement software spread Roundness on the size of the assessment, measured in the collected data, input into the computer for analysis calculation, and output the measurement results.
Through the analysis of testing the roundness error measuring data.
Table 3 Different sectional internal hole cylindricity error measurement section 1 2 3 4 5 cylindricity error 1.8 2.0 1.8 1.4 1.8 Through three coordinates of the cylindricity error analysis of the measuring data, the error can completely satisfy zirconia ceramics spindle design requirements.
Online since: January 2013
Authors: Govindan Marthandan, Sreenivasan Jayashree, Chinnasamy Agamudainambhi Malarvizhi, Gowrie Vinayan
Questionnaire-based survey will be used to obtain information and Structural Equation Modeling will be used to analyze the data.
By minimizing the risk of regulatory and environmental liability fines and improving an organization’s efficiency, leading to a reduction in waste and consumption of resources, operating costs can be reduced (ISO14001.com.au 2010).
The data collected through the questionnaire will be subjected to a number of checks to be performed at various stages to ensure the quality of data and the quality of the data input process.
Development and Validation of critical factors of Environmental Management, Industrial Management & Data Systems, 106(1):96-114.
By minimizing the risk of regulatory and environmental liability fines and improving an organization’s efficiency, leading to a reduction in waste and consumption of resources, operating costs can be reduced (ISO14001.com.au 2010).
The data collected through the questionnaire will be subjected to a number of checks to be performed at various stages to ensure the quality of data and the quality of the data input process.
Development and Validation of critical factors of Environmental Management, Industrial Management & Data Systems, 106(1):96-114.
Online since: August 2014
Authors: Li Wen Xu, Zhuang Li, Kun Zhang, Li Juan Qiao
The hot spot of Ad Hoc network is to realize further energy consumption reduction.
Each data packet contains 512 bytes.
It is optional, and its destination is not stationary, namely it is random among the nodes in the process of data transmission.
Fig. 2 and fig. 3 show that the data delivery ratios of NL-AODV and AODV both decrease with the increase of the motion velocity.
However, compared with the NL-AODV protocol, LN-AODV protocol is worse at time delay and data delivery ratio.
Each data packet contains 512 bytes.
It is optional, and its destination is not stationary, namely it is random among the nodes in the process of data transmission.
Fig. 2 and fig. 3 show that the data delivery ratios of NL-AODV and AODV both decrease with the increase of the motion velocity.
However, compared with the NL-AODV protocol, LN-AODV protocol is worse at time delay and data delivery ratio.
Online since: October 2014
Authors: Lukáš Prokopčák
Introduction of mechanization and automation of construction works primarily pursues the reduction in the consumption of total work, it means that the amount of direct labor decreased over consumption increased objectification work.
Stages of the design processing: · Initial phase, definition of the purpose and objective, positioning of the design in the macro-space, · Lead phase, definition of production resources, positioning within the micro-space, · Design processing, analysis of the current status and entry data, elaboration of alternative solutions, · Phase of optimization, selection of the optimal alternative.
Entry data represent the basic information database from which the designer derives in preparing the solution.
Individual impacts can be classified as follows: [2]: · Impact of the macro-space – definition of the type of building works, their volume, · Impact of the micro-space – positioning under specific conditions representing: o Conditions of the site: spatial, morphological, hydrological, geological, climatic conditions o Transportation routes access, o Energy needs and availability, o Land planning requirements (building impact on the given area), o Environmental requirements and requirements concerning occupational safety, o Machinery and equipment requirements as well as their technical data, · Impact of time-related data can be classified as follows: o Constant data in time: efficient time resources (of a machine, of an employee) o Time variables: performance standards, technological procedures, schedules, machinery fleet data, number of machines, value of the machinery, data on personnel social needs o Independent variables – contingent data: machinery breakdowns, personnel
Designing of building processes enables us to acquire additional useful data that lead to an optimal design of the given process implementation.
Stages of the design processing: · Initial phase, definition of the purpose and objective, positioning of the design in the macro-space, · Lead phase, definition of production resources, positioning within the micro-space, · Design processing, analysis of the current status and entry data, elaboration of alternative solutions, · Phase of optimization, selection of the optimal alternative.
Entry data represent the basic information database from which the designer derives in preparing the solution.
Individual impacts can be classified as follows: [2]: · Impact of the macro-space – definition of the type of building works, their volume, · Impact of the micro-space – positioning under specific conditions representing: o Conditions of the site: spatial, morphological, hydrological, geological, climatic conditions o Transportation routes access, o Energy needs and availability, o Land planning requirements (building impact on the given area), o Environmental requirements and requirements concerning occupational safety, o Machinery and equipment requirements as well as their technical data, · Impact of time-related data can be classified as follows: o Constant data in time: efficient time resources (of a machine, of an employee) o Time variables: performance standards, technological procedures, schedules, machinery fleet data, number of machines, value of the machinery, data on personnel social needs o Independent variables – contingent data: machinery breakdowns, personnel
Designing of building processes enables us to acquire additional useful data that lead to an optimal design of the given process implementation.
Online since: December 2012
Authors: Yan Nian Rui, Xiao Mei Jiang, Zheng Xiao Hua
.; Warnings and alarms by email and/or SMS when over/below a threshold; High level of automation including data collection from elevators, automatic data transfer, storing of the information on server, and showing information on display; Information is accessed via Internet and shown on www pages with customizable look and feel.
By deploying data warehouse technology, the proposed system allows significant reduction of storage requirement for managing real-time signals.
The data generated from such testing can also be used for calibrating back office maintenance scheduling module and database related functions.
Signals and maintenance records accumulate in the database server over time and once it reaches a predefined threshold, the data from the database server is extracted, transformed, and achieved into the data warehouse server.
This advanced system can be run through the communication lines to transmit the operation and fault information to a remote monitoring maintenance center, with real-time data storage, online analysis, online intervention and monitoring and automatically generated data reports.
By deploying data warehouse technology, the proposed system allows significant reduction of storage requirement for managing real-time signals.
The data generated from such testing can also be used for calibrating back office maintenance scheduling module and database related functions.
Signals and maintenance records accumulate in the database server over time and once it reaches a predefined threshold, the data from the database server is extracted, transformed, and achieved into the data warehouse server.
This advanced system can be run through the communication lines to transmit the operation and fault information to a remote monitoring maintenance center, with real-time data storage, online analysis, online intervention and monitoring and automatically generated data reports.
Online since: November 2012
Authors: Ling Zhao, Dan Shen, Tie Jun Ma
The influences of factors such as particle filling ratio, particle mass ratio and initial deviation displacement on the damping effect are discussed by means of test data.
The non-obstructive particle damping (NOPD) technology provides a new way of cable vibration reduction.
The vibration data of the experiments were collected by DASP system and analyzed to obtain the structural damping ratios of the wire.
According to the test data, the relation curves between the damping ratio of the wire under different particle filling ratios and the initial deviation displacement are drawn in Fig.2 for the two diameters of iron powders filled in the f6 tube.
It is noted by comparing the curves in Fig.3 with those in Fig.4 that between the data for two diameters of tubes there exists significant difference in the relation curves of damping change with filling ratio but much better conformity in the ascending part of the relation curves of damping change with mass ratio.
The non-obstructive particle damping (NOPD) technology provides a new way of cable vibration reduction.
The vibration data of the experiments were collected by DASP system and analyzed to obtain the structural damping ratios of the wire.
According to the test data, the relation curves between the damping ratio of the wire under different particle filling ratios and the initial deviation displacement are drawn in Fig.2 for the two diameters of iron powders filled in the f6 tube.
It is noted by comparing the curves in Fig.3 with those in Fig.4 that between the data for two diameters of tubes there exists significant difference in the relation curves of damping change with filling ratio but much better conformity in the ascending part of the relation curves of damping change with mass ratio.
Online since: February 2012
Authors: Łukasz Łach, Dmytro S. Svyetlichnyy
Results of the modeling of the process by finite element method (FEM) are input data for further simulation by FCA.
The simulation of the microstructure evolution can be conducted for arbitrary points (for which the appropriate data is available) in an arbitrary forming process, on the basis of the calculation by an arbitrary FEM code.
The time, temperature and strain rate tensor in the data file are needed for the simulation by FCA.
Sequential reduction in direction y, x and y in three passes with elongation in the rolling direction z can be seen.
The further studies will be focused on the modeling of real material and verification by comparison of simulation results with experimental data.
The simulation of the microstructure evolution can be conducted for arbitrary points (for which the appropriate data is available) in an arbitrary forming process, on the basis of the calculation by an arbitrary FEM code.
The time, temperature and strain rate tensor in the data file are needed for the simulation by FCA.
Sequential reduction in direction y, x and y in three passes with elongation in the rolling direction z can be seen.
The further studies will be focused on the modeling of real material and verification by comparison of simulation results with experimental data.
Online since: February 2018
Authors: Su Goog Shon, Hee Jung Byun, Yan Pung Zheng, Sang Jun Choi
Our proposed method uses to identify live lines with very small power high frequency signal injection based on data communication technology.
When confusion for phases and wires occurs, disproportionate concentrations of loads can easily occur, and this type of disproportionate concentration of loads can cause phase unbalance that can lead to power loss or power failures and, further, equipment failures due to excessive voltage regulation or reduction of useful life, etc.
Proposal of the New Phase and Transformer Identification System Power Line Communication (PLC) is a technology that exchanges data via the AC electric power line.
Data is sent on the power lines by superposing a modulated high-frequency carrier signal on the line voltage, AC or DC.
In order to transmit or receive data from the electric power line, connect a live line with PLC modems through the coupling circuit as shown in Fig. 2.
When confusion for phases and wires occurs, disproportionate concentrations of loads can easily occur, and this type of disproportionate concentration of loads can cause phase unbalance that can lead to power loss or power failures and, further, equipment failures due to excessive voltage regulation or reduction of useful life, etc.
Proposal of the New Phase and Transformer Identification System Power Line Communication (PLC) is a technology that exchanges data via the AC electric power line.
Data is sent on the power lines by superposing a modulated high-frequency carrier signal on the line voltage, AC or DC.
In order to transmit or receive data from the electric power line, connect a live line with PLC modems through the coupling circuit as shown in Fig. 2.
Online since: July 2011
Authors: Qing Fen Li, Ping Long, Yong Lei Xin, Li Li Xue, Li Kun Xu
These data show that Ti/(Ru,Ir,La)Ox oxide electrode exhibits considerably high voltammetric charges, apparent current density and low onset potential for the ClER and OER.
It can be seen that crystalline diffractional peaks is identified according to the powder diffraction data contained in the JCPDS.
Hou et al. observed that the introduction of small amounts of La into supported Ni-B amorphous alloy produced by the chemical reduction method resulted in a higher crystallization temperature[10].
The XRD data reveals that the electrode exists in the major formation of amorphous phase as a consequence of the addition of La into Ti/(Ru,Ir)Ox oxide electrode The amorphous phase is believed to play an important role in improving apparent electrocatalytic activity.
It can be seen that crystalline diffractional peaks is identified according to the powder diffraction data contained in the JCPDS.
Hou et al. observed that the introduction of small amounts of La into supported Ni-B amorphous alloy produced by the chemical reduction method resulted in a higher crystallization temperature[10].
The XRD data reveals that the electrode exists in the major formation of amorphous phase as a consequence of the addition of La into Ti/(Ru,Ir)Ox oxide electrode The amorphous phase is believed to play an important role in improving apparent electrocatalytic activity.