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Online since: July 2011
Authors: Quang Cherng Hsu, Yan Chau Huang
It was concluded that the reduction of equivalent stress in anti-roll bar accomplished by modifying the bushing provided a significant improvement in the fatigue life.
Figure 10 depicts the input data, maximum principal stress is 89.8 MPa and number of cycles is 4147200, to generate a creative load spectrum.
Fig. 9 The data to generate an estimated S-N curve.
Fig. 10 The input data to generate a creative load spectrum.
These data can be used as load spectrum for further fatigue analysis.
Figure 10 depicts the input data, maximum principal stress is 89.8 MPa and number of cycles is 4147200, to generate a creative load spectrum.
Fig. 9 The data to generate an estimated S-N curve.
Fig. 10 The input data to generate a creative load spectrum.
These data can be used as load spectrum for further fatigue analysis.
Online since: September 2011
Authors: Wen Wang, Hong Shan Liu
Supposed sub step excavation displacement Δ is occurred under certain excavation parameters (width, depth, time, space), Δ can be obtained from monitor data, then at the same excavation layer, the same displacement would also be occurred at same excavation parameters.
3.
kt,λt Eq.2 is the relationship between displacement of diaphragm and unsupported exposure time ,the equation is obtained from statistics of monitor data
( Eq.2) y : displacement of diaphragm(mm); t: time (h) so, kt can be described as in Eq.3 : ( Eq.3) According to statistics data , the exposure curve of each layer is almost the same, so λt=1. 4.
Table 6 Comparative displacement of space effect distance (m) Layer 1 Layer 2 Layer 3 Layer 4 0 1 1 1 1 3 0.958 0.952 0.940 0.931 6 0.845 0.824 0.783 0.740 9 0.688 0.653 0.585 0.508 12 0.520 0.480 0.401 0.315 15 0.368 0.334 0.260 0.184 18 0.245 0.223 0.163 0.106 21 0.155 0.147 0.103 0.064 Prediction The displacement of 1st, May is 1.32mm(obtained from monitor data) 1.
Take the 9th, May prediction as example, following ways can be used to reduce excavation displacement: 1 reduce width of sub-step excavation Supposed to reduce the width to 6m, then kb=1/2.24=0.47, λb (2-1) =1.73, and the other parameters keep the same , then Δ=3.03mm, it is a 12% reduction of excavation displacement. 2 make the sub-step in two parts.
kt,λt Eq.2 is the relationship between displacement of diaphragm and unsupported exposure time ,the equation is obtained from statistics of monitor data
( Eq.2) y : displacement of diaphragm(mm); t: time (h) so, kt can be described as in Eq.3 : ( Eq.3) According to statistics data , the exposure curve of each layer is almost the same, so λt=1. 4.
Table 6 Comparative displacement of space effect distance (m) Layer 1 Layer 2 Layer 3 Layer 4 0 1 1 1 1 3 0.958 0.952 0.940 0.931 6 0.845 0.824 0.783 0.740 9 0.688 0.653 0.585 0.508 12 0.520 0.480 0.401 0.315 15 0.368 0.334 0.260 0.184 18 0.245 0.223 0.163 0.106 21 0.155 0.147 0.103 0.064 Prediction The displacement of 1st, May is 1.32mm(obtained from monitor data) 1.
Take the 9th, May prediction as example, following ways can be used to reduce excavation displacement: 1 reduce width of sub-step excavation Supposed to reduce the width to 6m, then kb=1/2.24=0.47, λb (2-1) =1.73, and the other parameters keep the same , then Δ=3.03mm, it is a 12% reduction of excavation displacement. 2 make the sub-step in two parts.
Online since: February 2013
Authors: Jing Fang Wang
Pitch detection process
Noisy speech underwent a 4-order elliptic band-pass filter, filter out high frequency and low frequency below 60Hz, and calculated to the first N0 elliptical filtering of data as the initial standard deviation of the noise section of Q0 (EMD as a basis for access ); then 20-30ms long framing; of each frame signal of a recursive two-degree threshold frame voicing decision, voiceless frame zero pitch, or determine the initial section of the standard deviation of the noise Q0 size.
Empirical mode decomposition(EMD) Assumption of signal, EMD IMF component selection to achieve the following steps: First find the signal maximum points and minimum of all data points, fitted by cubic spline interpolation to obtain the signal envelope and the next on the envelope, to ensure that all points on the two envelopes in the Between the upper and lower envelope by calculating the mean of each point, to obtain a mean curve, and define the signal minus the corresponding point of the sequence of the new data available: (2) If meet the conditions of IMF components,is I the first order IMF component.
Therefore, this combination of empirical mode decomposition of noisy speech signal pre-noise reduction, and then select the high-dimensional phase space reconstruction of attractor description of the characteristics of the signal to achieve the look and accurate pitch extraction of speech start and end point and purpose.
[6] Spib Noise data[EB/OL],http://spib.rice.edu/spib/select_noise.html [7] RABINERLR.On the use of autocorrelation analysis for pitch detection[J].IEEE Tram ASSR 1977,25(1):24-33
Empirical mode decomposition(EMD) Assumption of signal, EMD IMF component selection to achieve the following steps: First find the signal maximum points and minimum of all data points, fitted by cubic spline interpolation to obtain the signal envelope and the next on the envelope, to ensure that all points on the two envelopes in the Between the upper and lower envelope by calculating the mean of each point, to obtain a mean curve, and define the signal minus the corresponding point of the sequence of the new data available: (2) If meet the conditions of IMF components,is I the first order IMF component.
Therefore, this combination of empirical mode decomposition of noisy speech signal pre-noise reduction, and then select the high-dimensional phase space reconstruction of attractor description of the characteristics of the signal to achieve the look and accurate pitch extraction of speech start and end point and purpose.
[6] Spib Noise data[EB/OL],http://spib.rice.edu/spib/select_noise.html [7] RABINERLR.On the use of autocorrelation analysis for pitch detection[J].IEEE Tram ASSR 1977,25(1):24-33
Online since: October 2013
Authors: Katalin Líska, János Líska, János Kodácsy
Cutting force components were measured by KISTLER 9257B three-component, piezoelectric force measuring machine and data recording system.
We found, that in range of small feeds (at standard geometry), the relation of force components is similar to the data of literature, that is Ff 0.2 mm /rev this relation is not valid.
Experimental results During the experiments, we measured force components by dynamometer KISTLER 9257B and by data recording system.
In tables below we can see percental comparisons of data, when we compared the original surface roughness values to values after diamond burnishing (at using standard and wiper geometry).
The reduction slightly depends on feed and greatly depends on burnishing force.
We found, that in range of small feeds (at standard geometry), the relation of force components is similar to the data of literature, that is Ff
Experimental results During the experiments, we measured force components by dynamometer KISTLER 9257B and by data recording system.
In tables below we can see percental comparisons of data, when we compared the original surface roughness values to values after diamond burnishing (at using standard and wiper geometry).
The reduction slightly depends on feed and greatly depends on burnishing force.
Online since: March 2009
Authors: Pablo A. Muñoz-Rojas, M. Vaz, M.R. Lange, J. Stahlschmidt
In general, a staggered solution approach is adopted, in which separate analyses
are undertaken for each phenomenon with data exchange performed at pre-defined times or
increment intervals.
A universal testing machine EMIC DL30000 coupled to an automatic data acquisition system was also used.
Other material data and simulation parameters are presented in Table 1.
Material data.
As Ti increases, the combination between smaller yield stresses and reduction of necking leads to similar tensile loads for all cases analysed (see Fig. 3a for U ≈ 6 mm).
A universal testing machine EMIC DL30000 coupled to an automatic data acquisition system was also used.
Other material data and simulation parameters are presented in Table 1.
Material data.
As Ti increases, the combination between smaller yield stresses and reduction of necking leads to similar tensile loads for all cases analysed (see Fig. 3a for U ≈ 6 mm).
Online since: July 2011
Authors: Rui Luo, Ping Chen, Ting Yang, Hui Zong Zhang, Ping Li, Ya Wu Zeng
(1) Process the data of sliced images
The imread[1] function was used to import the CT images to the computer circularly.
As the images contained so much information, the data must be reduced to improve the efficiency of the model.
The reducevolume[1] function was used to control the interval of points in the X, Y, and Z direction to reduce the amount of data. 579,279 points were taken from Figure 3 (a), (b).
Fig. 2 Sliced image from CT (a) (b) scanning technology Fig.3 Dense points (a) and loose point (b) (2)Generate the surface shell The data were obtained by establishing the isosurface of the shell.
In summary, taking α for 40 mm, and β for 0.4, the model satisfied the requests of the number of spheres and the smoothness of model and the reduction of overlap. 4 Conclusions This article combined the CT scanning technology with digital image processing technology, and obtained the dimensional coordinates of the gravel.
As the images contained so much information, the data must be reduced to improve the efficiency of the model.
The reducevolume[1] function was used to control the interval of points in the X, Y, and Z direction to reduce the amount of data. 579,279 points were taken from Figure 3 (a), (b).
Fig. 2 Sliced image from CT (a) (b) scanning technology Fig.3 Dense points (a) and loose point (b) (2)Generate the surface shell The data were obtained by establishing the isosurface of the shell.
In summary, taking α for 40 mm, and β for 0.4, the model satisfied the requests of the number of spheres and the smoothness of model and the reduction of overlap. 4 Conclusions This article combined the CT scanning technology with digital image processing technology, and obtained the dimensional coordinates of the gravel.
Online since: September 2014
Authors: Sheng Nan Zhou, Jian Jun Wang
One popular approach to solve the multi-response optimization problems is dimensionality reduction strategy.
The control factors are assigned as the input data and the response GRG is assigned as the output data.
Given the input and output layers from the experimental data, the structure of a neural network can reference literature[11].
Given the experimental data, the SN ratios and the normalized values of SN ratios (NSN) are computed using correlated equation.
The control factors are assigned as the input data and the response GRG is assigned as the output data.
Given the input and output layers from the experimental data, the structure of a neural network can reference literature[11].
Given the experimental data, the SN ratios and the normalized values of SN ratios (NSN) are computed using correlated equation.
Online since: July 2015
Authors: Eduard Cesari, Volodymyr Chernenko, Valeriy Prudnikov, Ivan Titov, A. Granovsky, Elena Gan’shina, J. Barandiaran, Andrey Novikov, Igor Rodionov
The origin of MT is commonly related to the electronic instabilities, although this mechanism is questioned in view of recent experimental data on the Hall effect [3].
Therefore, we will present only the experimental data after cycling, i.e. those displaying no MT.
A disappearance of MT in SC samples in the studied temperature range can be explained by the-atomic-order-triggered strong reduction of entropy change accompanying MT up to its full “arrest” [5,6].
That is consistent with Hall effect data [3].
It is interesting to compare the MO spectra for the studied Ni45Mn36.7In13.3Co5 samples and data available in literature.
Therefore, we will present only the experimental data after cycling, i.e. those displaying no MT.
A disappearance of MT in SC samples in the studied temperature range can be explained by the-atomic-order-triggered strong reduction of entropy change accompanying MT up to its full “arrest” [5,6].
That is consistent with Hall effect data [3].
It is interesting to compare the MO spectra for the studied Ni45Mn36.7In13.3Co5 samples and data available in literature.
Online since: September 2013
Authors: Zsuzsa Majoros, Peter Sasvari
In general it can be stated that in Western Europe the amount spent on IT investments has been steadily increasing by approximately 12 billion US dollars in five years. [7,20] Due to the effects of the economic crisis in 2008, businesses throughout the world became more cautious, seeking after cost reduction and, parallel to this, increased efficiency, which may lead to the further development of information technology.
In order to set up the rankings, the following factors are assessed: convergence in the information and communication technology, network neutrality, growing importance of mobile broadband connections, costs of broadband connections, role of real-time analysis in the examination of large amount of data, impact of information technology in education.
Depending on the users' role, the following two types can be delineated: "Executive information systems produce data, information and documents that are needed for performing the organization's core business activities and its routine tasks.
Types of the applied information systems The data on the applied information systems in three surveyed countries can be seen in Figure 1, since Slovakia (SK), as one of Hungary's neighbouring country, was also included in the original survey.
The data on micro-enterprises are highlighted for better comparison in all of the three countries.
In order to set up the rankings, the following factors are assessed: convergence in the information and communication technology, network neutrality, growing importance of mobile broadband connections, costs of broadband connections, role of real-time analysis in the examination of large amount of data, impact of information technology in education.
Depending on the users' role, the following two types can be delineated: "Executive information systems produce data, information and documents that are needed for performing the organization's core business activities and its routine tasks.
Types of the applied information systems The data on the applied information systems in three surveyed countries can be seen in Figure 1, since Slovakia (SK), as one of Hungary's neighbouring country, was also included in the original survey.
The data on micro-enterprises are highlighted for better comparison in all of the three countries.
Online since: March 2015
Authors: Wei Hong, Wen Xu Sun, Yan Su, Fang Xi Xie
Introduction
The start/stop (S/S) technology has been proposed as an easy and effective solution for energy conservation and emission reduction [1].
The RBT 5300 data acquisition card was used to collect the measurement signal.
The data acquisition card has 16 high-speed data acquisition channels and the data acquisition speed of each channel can reach up to 100ksps.
The RBT 5300 data acquisition card was used to collect the measurement signal.
The data acquisition card has 16 high-speed data acquisition channels and the data acquisition speed of each channel can reach up to 100ksps.