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Online since: June 2011
Authors: Masoud Emamy, N. Nasiri, M. Bigdeli
It is evident that the maximum reduction in the average length of Fe containing platelets occurs in specimens with 2% Fe.
At the presence of β phases in the microstructure, Increase in stress concentration around β phases results a reduction in the amount of stress which is necessary for crack initiation.
Sr addition leads to volume fraction of β platelets reduction and modifies size and the morphology of intermetallic compounds [8, 9].
Fig 3 shows the changes in average length of β needles for each casting as listed in Table 2, which were obtained from image analysis data.
From fig.2 and 3, it is evident that the maximum reduction in the average length of Fe containing platelets occurs in specimens with 2wt. % Fe.
At the presence of β phases in the microstructure, Increase in stress concentration around β phases results a reduction in the amount of stress which is necessary for crack initiation.
Sr addition leads to volume fraction of β platelets reduction and modifies size and the morphology of intermetallic compounds [8, 9].
Fig 3 shows the changes in average length of β needles for each casting as listed in Table 2, which were obtained from image analysis data.
From fig.2 and 3, it is evident that the maximum reduction in the average length of Fe containing platelets occurs in specimens with 2wt. % Fe.
Online since: March 2015
Authors: Xin Wu, Guo Qiang Shen, Feng Li, Shi Xi Yang, Xiao Qing Xia
The reduction in mean forming load when ultrasonic vibration is applied to the die was attributed to several sources: the reduction of friction between die and specimen interface, stress superposition, absorption by dislocations of the ultrasonic vibration energy, acoustic softness.
This may lead to a fictious impression of friction reduction.
The numerical simulation agrees well with the experimental data during the first stage superimposed with ultrasonic vibration (T1).
It can be seen that the FEM data is bigger than experimental data when the engineering strain is equal to 0.4 while they are almost equal when the engineering strain is equal to 0.22.
It can be explained by the reduction in friction coefficient.
This may lead to a fictious impression of friction reduction.
The numerical simulation agrees well with the experimental data during the first stage superimposed with ultrasonic vibration (T1).
It can be seen that the FEM data is bigger than experimental data when the engineering strain is equal to 0.4 while they are almost equal when the engineering strain is equal to 0.22.
It can be explained by the reduction in friction coefficient.
Online since: January 2023
Authors: Gita Fitriani, Irawati Irawati, Ariany Zulkania
According to data released by the Ministry of Energy and Mineral Resources of the Republic of Indonesia, coal reserves in Indonesia are estimated to run out in 2036, oil reserves in 2028, and gas-phase fuel in 2027.
The weight reduction was almost 58% upon heating to 350 °C.
This mass reduction occurs due to the heat distribution by conduction in the furnace.
Based on the activation energy values in Table 1, it can be seen that the activation energy corresponding to the data value is at the R2.
Kinetic Analysis of Thermogravimetric Data Collected From Bigger Samples.
The weight reduction was almost 58% upon heating to 350 °C.
This mass reduction occurs due to the heat distribution by conduction in the furnace.
Based on the activation energy values in Table 1, it can be seen that the activation energy corresponding to the data value is at the R2.
Kinetic Analysis of Thermogravimetric Data Collected From Bigger Samples.
Online since: November 2012
Authors: João Manuel R. S. Tavares, A.P.M. Baptista, Luís Miguel P. Durão, Daniel J.S. Gonçalves, Victor Hugo C. de Albuquerque, Túlio Hallak Panzera, Leandro J. Silva, A. Aguiar Vieira
From these damages, delamination is considered the most serious one as it can lead to a reduction of the mechanical properties of the laminate [10].
The reduction of delamination has been the subject of several studies, see for example, [12-16].
Thrust forces were monitored during drilling for thrust force data collection; delamination extension was carried out through digital scanner and enhanced digital radiography; mechanical testing was performed in order to evaluate mechanical strength loss due to hole machining.
During drilling, axial thrust forces were monitored with a Kistler 9257B dynamometer associated to an amplifier and a computer for data collection.
The tests were performed in a Shimadzu AG-X/100 kN Universal Testing machine equipped with the necessary accessories to run the different tests and connected to a computer for machine control and data acquisition and processing.
The reduction of delamination has been the subject of several studies, see for example, [12-16].
Thrust forces were monitored during drilling for thrust force data collection; delamination extension was carried out through digital scanner and enhanced digital radiography; mechanical testing was performed in order to evaluate mechanical strength loss due to hole machining.
During drilling, axial thrust forces were monitored with a Kistler 9257B dynamometer associated to an amplifier and a computer for data collection.
The tests were performed in a Shimadzu AG-X/100 kN Universal Testing machine equipped with the necessary accessories to run the different tests and connected to a computer for machine control and data acquisition and processing.
Online since: November 2013
Authors: Zhao Hui Luo, Zai Fang Xi
The first is to acquire a set of several CT images per slice through the volume; the second step is to resort the images and assemble spatio-temporally coherent data sets from the data acquired, which are most certainly shuffled and out of order [5].
Manifold learning is a nonlinear dimensionality reduction (NLDR) technique which presume that the data lies on or in the vicinity of a low dimensional manifold and attempt to map the high dimensional data into a single low dimensional, global coordinate system[10].
Section 3 details the experimental procedure, data set, parameter extraction.
This is the result returned by LLE as the low dimensional embedding of the high dimensional data points Xi.
Image data can be naturally represented as points in a high dimensional data space (one dimension for each pixel), i.e. each image is a long vector with the dimension of m × n, where m and n is the number of columns and rows respectively.
Manifold learning is a nonlinear dimensionality reduction (NLDR) technique which presume that the data lies on or in the vicinity of a low dimensional manifold and attempt to map the high dimensional data into a single low dimensional, global coordinate system[10].
Section 3 details the experimental procedure, data set, parameter extraction.
This is the result returned by LLE as the low dimensional embedding of the high dimensional data points Xi.
Image data can be naturally represented as points in a high dimensional data space (one dimension for each pixel), i.e. each image is a long vector with the dimension of m × n, where m and n is the number of columns and rows respectively.
Online since: October 2014
Authors: Zhen Cheng Fang
Along with the completion of HGP (human genome project), huge amounts of genetic data constantly emerge.
Gene regulatory network is to set up a mathematic model of the interaction between genes using a large amount of experimental data and analyze the expression of predicted genes through a mathematical model.
Table 1 Gene expression truth table According to the truth table, the state transition of the genes is drawn as follows: Fig.6 State transition According to the truth table and using the Karnaugh map reduction method, the logical expressions of three genes in next moment are obtained as follows: According to the logical expressions, the circuit diagram can be drawn as figure 7.
Because genetic data is very huge, the state transition of cells is only necessary to program using VHDL, and wiring will be automatically done by computer.
First, the top-down design approach is used, making a lot of work such as computing logical expression and karnaugh map reduction removed; circuit wiring is done by computer, making a lot of time to design saved.
Gene regulatory network is to set up a mathematic model of the interaction between genes using a large amount of experimental data and analyze the expression of predicted genes through a mathematical model.
Table 1 Gene expression truth table According to the truth table, the state transition of the genes is drawn as follows: Fig.6 State transition According to the truth table and using the Karnaugh map reduction method, the logical expressions of three genes in next moment are obtained as follows: According to the logical expressions, the circuit diagram can be drawn as figure 7.
Because genetic data is very huge, the state transition of cells is only necessary to program using VHDL, and wiring will be automatically done by computer.
First, the top-down design approach is used, making a lot of work such as computing logical expression and karnaugh map reduction removed; circuit wiring is done by computer, making a lot of time to design saved.
Online since: July 2014
Authors: Yang Yang Li, Wei Xu, Hui Min Xu
By comparing the results of numerical evaluation and actual data, the paper analyzed the dynamic characteristic of prefabricated houses of light-weight steel structure.
It spent 3~ 6 minutes collecting data in each working condition, and the lateral and lengthways sampling frequencies were set as 110 Hz and 100 Hz.
(b) Certain jamming signals still exist after the filtering process, and this would bring some errors in post data processing[8].
The period reduction factor should be small in design process if not taking the infilled walls and inter-column bars into consideration.
The calculated earthquake action value would be smaller if the reduction factor is defined as 0.9 recommended in China standard.
It spent 3~ 6 minutes collecting data in each working condition, and the lateral and lengthways sampling frequencies were set as 110 Hz and 100 Hz.
(b) Certain jamming signals still exist after the filtering process, and this would bring some errors in post data processing[8].
The period reduction factor should be small in design process if not taking the infilled walls and inter-column bars into consideration.
The calculated earthquake action value would be smaller if the reduction factor is defined as 0.9 recommended in China standard.
Online since: August 2013
Authors: Fang Jun Lu, Qiu Wei Yang, Jian Heng Li, Wei Min Jin, Ying Yao
The effectiveness of the proposed method is illustrated using simulated data on a published numerical example.
These sensitivity coefficients are then used to calculate changes in the parameters that would force the analysis frequencies and modes to match those measured in test [4].The common advantage of these methods is that they can detect structural damage by directly using the incomplete modal parameters without any eigenvector expansion or model reduction [5].
In this step, the modes of the damaged structure can be obtained by a modal survey on it, and the modal data of the undamaged structure can be obtained by solving a generalized eigenvalue problem of the undamaged FEM or through a modal test on the intact structure.
True damage reduction Results by the original method of Ref.[9] Results by the proposed improved method 2 11 19 0.15 0.2 0.1 0.1777(18%)* 0.2564(28.2%) 0.1120(12%) 0.1509(0.6%) 0.2041(2.1%) 0.1007(0.7%) * The value in bracket denotes the comparative error between the calculated value and the true value.
The effectiveness of the proposed method is illustrated using simulated data on the published numerical example in Ref.[9].
These sensitivity coefficients are then used to calculate changes in the parameters that would force the analysis frequencies and modes to match those measured in test [4].The common advantage of these methods is that they can detect structural damage by directly using the incomplete modal parameters without any eigenvector expansion or model reduction [5].
In this step, the modes of the damaged structure can be obtained by a modal survey on it, and the modal data of the undamaged structure can be obtained by solving a generalized eigenvalue problem of the undamaged FEM or through a modal test on the intact structure.
True damage reduction Results by the original method of Ref.[9] Results by the proposed improved method 2 11 19 0.15 0.2 0.1 0.1777(18%)* 0.2564(28.2%) 0.1120(12%) 0.1509(0.6%) 0.2041(2.1%) 0.1007(0.7%) * The value in bracket denotes the comparative error between the calculated value and the true value.
The effectiveness of the proposed method is illustrated using simulated data on the published numerical example in Ref.[9].
Online since: September 2015
Authors: M.R. Ramadan
Main findings of the present paper conclude that industrial (product/ plant) safety, in its broadened sense, does embrace the gain/loss statistical data of a product's introductory versions and represents a trade–off function of its profits (resource renovation) and its losses (resources drain).
Damages due to user implementation follow a Statistical Process Control (SPC) which can be conventionally controlled within a tolerance field described by the Upper Control Limit (UCL) and the Lower Control Limit (LCL). 2.2 The FMEA Technique as Safety Assessment for Automobile In industrial engineering, FMEA is implemented to monitor the progressive improvement in a product's quality, or equivalently the progressive reduction in a product's imperfection (deficiency).
Thus, our analysis will rely mainly on data available at the end of this phase near year 1900. 2.3.2 Modeling of Disturbed Phase It starts near year 1900 (beginning of the 20th century).
Comparison of the two volumes indicates that the overall RPN shrinks to about 11% of its volume, reflecting proper actions taken with regard to reduction of CO emission in air.
1- In SPC technique, the lower control limit is considered as a standard target for expected future performance, and helps in monitoring the direct effects of product’s environmental safety. 2- Displaying of RPN in new graphical domains helps in monitoring the gradual changes in the direct effects of product’s environmental safety which focuses on the human discretion. 3- In Markov model, most aspects of the direct and indirect effect of a product become so controllable that a compromised state can be designed to balance both useful and harmful outcomes of a proposed product. 4- Markov model application is still systematic and straightforward when it is limited to only six categorized entities, and to assess direct, and indirect effects, and most aspects of the industrial safety (plant / product) for environmental systems, especially strategic industries. 5- The designer of a prospective mechanical product has to include similar safety instructions for the whole ECS to achieve a reduction
Damages due to user implementation follow a Statistical Process Control (SPC) which can be conventionally controlled within a tolerance field described by the Upper Control Limit (UCL) and the Lower Control Limit (LCL). 2.2 The FMEA Technique as Safety Assessment for Automobile In industrial engineering, FMEA is implemented to monitor the progressive improvement in a product's quality, or equivalently the progressive reduction in a product's imperfection (deficiency).
Thus, our analysis will rely mainly on data available at the end of this phase near year 1900. 2.3.2 Modeling of Disturbed Phase It starts near year 1900 (beginning of the 20th century).
Comparison of the two volumes indicates that the overall RPN shrinks to about 11% of its volume, reflecting proper actions taken with regard to reduction of CO emission in air.
1- In SPC technique, the lower control limit is considered as a standard target for expected future performance, and helps in monitoring the direct effects of product’s environmental safety. 2- Displaying of RPN in new graphical domains helps in monitoring the gradual changes in the direct effects of product’s environmental safety which focuses on the human discretion. 3- In Markov model, most aspects of the direct and indirect effect of a product become so controllable that a compromised state can be designed to balance both useful and harmful outcomes of a proposed product. 4- Markov model application is still systematic and straightforward when it is limited to only six categorized entities, and to assess direct, and indirect effects, and most aspects of the industrial safety (plant / product) for environmental systems, especially strategic industries. 5- The designer of a prospective mechanical product has to include similar safety instructions for the whole ECS to achieve a reduction
Online since: December 2014
Authors: Hang Bing Wang, Dong Dong Lou, Ya Song Wang, Hua Rong Sun
Structure of the communication network
The secondary device in the local bottom control cabinet is in charge of the data acquisition and uploading data through the bus.
To extend data service center at the corresponding level, the RS - 485 bus is set up between the heating data aggregation server and the server at the corresponding level.
The data communication is through a serial protocol.
The machine with interfaces is responsible for transferring summarized data to the local data service center.
Data monitoring platform Data monitoring platform is achieved through the iFix configuration software from General Electric Company.
To extend data service center at the corresponding level, the RS - 485 bus is set up between the heating data aggregation server and the server at the corresponding level.
The data communication is through a serial protocol.
The machine with interfaces is responsible for transferring summarized data to the local data service center.
Data monitoring platform Data monitoring platform is achieved through the iFix configuration software from General Electric Company.