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Online since: December 2010
Authors: Irina Kaganova, Alexander Korshunov, Viktor Varyukhin, Alexey Reshetov, A. Smolyakov, A. Morozov, Yan Beygelzimer
The value of the reduction in area remained at the initial value.
These undoubtedly important data make it possible to estimate the efficiency of the SPD processing, but do not show the distribution of mechanical properties across the billets.
As is known [7], this characteristic includes the uniform elongation and local elongation, which is characterized by the reduction in area ψ.
As can be seen from Table 2, the reduction in area remained at the same level.
The value of the reduction in area remained at the initial value.
These undoubtedly important data make it possible to estimate the efficiency of the SPD processing, but do not show the distribution of mechanical properties across the billets.
As is known [7], this characteristic includes the uniform elongation and local elongation, which is characterized by the reduction in area ψ.
As can be seen from Table 2, the reduction in area remained at the same level.
The value of the reduction in area remained at the initial value.
Online since: February 2023
Authors: Vikhyat Jagawat, B. Jathiswar, M. Poonkodi, Pranay Agarwal
Linear regression classifies data based on dependent and independent data.
The data was taken from OASIS (longitudinal MRI data) wand consisted of 150 subjects, 78 demented and 72 non-demented.
This structured magnetic resonance imaging data is downloaded in jpeg format.
data = img / 255.0
This algorithm, CNN, recognizes patterns in the data.
The data was taken from OASIS (longitudinal MRI data) wand consisted of 150 subjects, 78 demented and 72 non-demented.
This structured magnetic resonance imaging data is downloaded in jpeg format.
data = img / 255.0
This algorithm, CNN, recognizes patterns in the data.
Online since: August 2011
Authors: Xiao Yao Qian, Ping Ping Wang
In this paper by means of noise and vibration measurements, meanwhile carry out statistical and analysis for the measured data to find the influence size of various factors with quality analysis tool, and then adopt some corresponding measures to control the motor noise, hoping to improve the motor quality.
Through the measurement of motor noise and vibration, while the measured data for statistical analysis to identify the size of the various factors and choose to modify the methods of motor noise and vibration, hoping to improve the motor quality, meanwhile, increase motor products on the market share.
Through a series of tests and the actual measurement data, then analyze them.
Magnetic noise reduction of induction machines[J].
The analysis and noise reduction method of three wire asynchronous motors mechanical vibration and noise[J].Shanghai Medium and Large Electrical Machines,2007(3):18-20
Through the measurement of motor noise and vibration, while the measured data for statistical analysis to identify the size of the various factors and choose to modify the methods of motor noise and vibration, hoping to improve the motor quality, meanwhile, increase motor products on the market share.
Through a series of tests and the actual measurement data, then analyze them.
Magnetic noise reduction of induction machines[J].
The analysis and noise reduction method of three wire asynchronous motors mechanical vibration and noise[J].Shanghai Medium and Large Electrical Machines,2007(3):18-20
Online since: November 2006
Authors: Maria do Carmo de Andrade Nono, Cosme Roberto Moreira Silva, Francisco Piorino Neto, R.A. Vieira, M.J.R. Barboza, Danieli A.P. Reis
Occurred a decreasing of steady state creep in function of the
reduction of oxidation process, showing that Ti-6Al-4V alloy lifetime was strongly affected
by the atmosphere due the oxidation suffered by the material.
The tensile properties are summarized in Table 1 namely, 0.2% yield stress (YS), ultimate tensile stress (UTS), elongation (EL) and reduction of area (RA).
Creep data at 500°C.
The highest values of tp and the reduction of the steadystate creep rate demonstrate that the higher creep resistance of Ti-6Al-4V is observed in uncoated samples in nitrogen atmosphere and coated samples in air.
The highest values of tp and the reduction of the steady-state creep rate demonstrate that the higher creep resistance of Ti-6Al-4V is observed in uncoated samples in nitrogen atmosphere and coated samples in air.
The tensile properties are summarized in Table 1 namely, 0.2% yield stress (YS), ultimate tensile stress (UTS), elongation (EL) and reduction of area (RA).
Creep data at 500°C.
The highest values of tp and the reduction of the steadystate creep rate demonstrate that the higher creep resistance of Ti-6Al-4V is observed in uncoated samples in nitrogen atmosphere and coated samples in air.
The highest values of tp and the reduction of the steady-state creep rate demonstrate that the higher creep resistance of Ti-6Al-4V is observed in uncoated samples in nitrogen atmosphere and coated samples in air.
Online since: December 2011
Authors: Shao Feng Yu, Yao Ge
And the curve of the ratio of perforated column to non-porous column on overall buckling load with opening rate will be drawn according to the data in Table 1, as shown in Fig. 3 (b is the width of the web, and S is vertical hole spacing).
From the data in Table 3 and Table 4, the overall buckling load with 2 or 3 rows of holes in web is almost the same with single row of holes, and the difference is less than 3%.
Section Size [mm] Opening rate Local Buckling Load with round holes [N/mm2] Local Buckling Load with square holes [N/mm2] 01 100×40×20×35×2,Length=300mm, Single rows of holes in web, Vertical spacing=50mm 0 425.60 425.60 02 0.1 416.19 411.33 03 0.2 414.40 416.64 04 0.3 427.42 440.77 05 0.4 453.72 472.02 06 0.5 477.75 500.75 Square holes Round holes The Local buckling Load [N/mm2] Opening rate in web Fig. 4 The curve of Local Buckling Load Through data analysis, the existence of holes has an impact on the local buckling load: (1) When the opening rate is lower(≤0.3),as the size of holes increases, the local buckling load decreases, but not obvious(The maximum reduction rate is 3.4%)
Throughout the whole process of change, the reduction of local buckling load is not obvious whether round holes or square holes.
For the parameters above, the distortional buckling coefficient kd is given in Table 6, and a curve about kd is also drawn in Fig. 6 according to the data in Table 6.
From the data in Table 3 and Table 4, the overall buckling load with 2 or 3 rows of holes in web is almost the same with single row of holes, and the difference is less than 3%.
Section Size [mm] Opening rate Local Buckling Load with round holes [N/mm2] Local Buckling Load with square holes [N/mm2] 01 100×40×20×35×2,Length=300mm, Single rows of holes in web, Vertical spacing=50mm 0 425.60 425.60 02 0.1 416.19 411.33 03 0.2 414.40 416.64 04 0.3 427.42 440.77 05 0.4 453.72 472.02 06 0.5 477.75 500.75 Square holes Round holes The Local buckling Load [N/mm2] Opening rate in web Fig. 4 The curve of Local Buckling Load Through data analysis, the existence of holes has an impact on the local buckling load: (1) When the opening rate is lower(≤0.3),as the size of holes increases, the local buckling load decreases, but not obvious(The maximum reduction rate is 3.4%)
Throughout the whole process of change, the reduction of local buckling load is not obvious whether round holes or square holes.
For the parameters above, the distortional buckling coefficient kd is given in Table 6, and a curve about kd is also drawn in Fig. 6 according to the data in Table 6.
Online since: May 2011
Authors: Li Ping Feng, Zheng Tang Liu, Qi Jun Liu, Hao Tian
From the calculated band structure and density of states, the bandgap reduction is observed due to the presence of the N-2p states in the top of valence bands, which leads to red-shift.
The obtained equilibrium structures are a=5.7898 Å, b=5.9118 Å, c=8.2399 Å and α=β=γ=90°, coinciding with the calculated values (a=5.6887 Å, b=5.7016 Å, c=8.0455 Å [15]) and experiments data (a=5.7516(6) Å, b=5.7646(5) Å, c=8.1344(9) Å [6], a=5.79 Å, b=5.85 Å, c=8.24 Å [7]).
The calculated band gap of the N-doped orthorhombic SrHfO3 is 3.08 eV, which is smaller than the calculated value 4.13 eV [14] (undoped) and experimental data of 6.1 eV (undoped) [3].
This is attributed to the following two reasons: (1) compared with experimental data, the small band gap is ascribed the well-known underestimation of conduction band state energies in ab initio calculations which are performed within DFT; (2) compared with the calculated values, the relativelly small band gap is ascribed the presence of the N-2p energy level in the top of the valence bands shown in Fig. 2 and Fig. 3.
It can be seen that a bandgap reduction is obvious, which indicates a red shift of the optical absorption edge of N-doped orthorhombic SrHfO3 used for lower energy absorption applications.
The obtained equilibrium structures are a=5.7898 Å, b=5.9118 Å, c=8.2399 Å and α=β=γ=90°, coinciding with the calculated values (a=5.6887 Å, b=5.7016 Å, c=8.0455 Å [15]) and experiments data (a=5.7516(6) Å, b=5.7646(5) Å, c=8.1344(9) Å [6], a=5.79 Å, b=5.85 Å, c=8.24 Å [7]).
The calculated band gap of the N-doped orthorhombic SrHfO3 is 3.08 eV, which is smaller than the calculated value 4.13 eV [14] (undoped) and experimental data of 6.1 eV (undoped) [3].
This is attributed to the following two reasons: (1) compared with experimental data, the small band gap is ascribed the well-known underestimation of conduction band state energies in ab initio calculations which are performed within DFT; (2) compared with the calculated values, the relativelly small band gap is ascribed the presence of the N-2p energy level in the top of the valence bands shown in Fig. 2 and Fig. 3.
It can be seen that a bandgap reduction is obvious, which indicates a red shift of the optical absorption edge of N-doped orthorhombic SrHfO3 used for lower energy absorption applications.
Online since: September 2003
Authors: Hans Kurt Tönshoff, T. Friemuth, Berend Denkena, Th. Glatzel
For this reason all necessary data (vibrations,
tool) have been measured and analysed in various test sets.
Based on the collected data and tests a model of the failure mechanisms was built.
The solution found was to utilise a telemetric device, consisting of a sensor signal amplifier and a transmitting system mounted on the flange of the saw blade on the one side and an antenna and a receiver on the other side, the measured data are transmitted for all further evaluation.
For the evaluation a data acquisition equipment connected to a computer converts the collected signals which are in turn analysed and stored.
While it is not possible to measure the deviation directly at their point of origin a calibration of the indirectly gained data is necessary.
Based on the collected data and tests a model of the failure mechanisms was built.
The solution found was to utilise a telemetric device, consisting of a sensor signal amplifier and a transmitting system mounted on the flange of the saw blade on the one side and an antenna and a receiver on the other side, the measured data are transmitted for all further evaluation.
For the evaluation a data acquisition equipment connected to a computer converts the collected signals which are in turn analysed and stored.
While it is not possible to measure the deviation directly at their point of origin a calibration of the indirectly gained data is necessary.
Online since: September 2007
Authors: Graeme Manson, Cecilia Surace, Keith Worden
A discordant outlier in a data set is an observation that is surprisingly different from the rest of
the data and therefore is believed to be generated by an alternate mechanism to the other data.
Outliers in Univariate Data.
Transmissibility function for the unfaulted data.
Test Set-up and Data Capture.
Lewis: Outliers in statistical data, 3 rd ed.
Outliers in Univariate Data.
Transmissibility function for the unfaulted data.
Test Set-up and Data Capture.
Lewis: Outliers in statistical data, 3 rd ed.
Online since: July 2015
Authors: Dilip Banerjee, Mark Iadicola, Adam Creuziger, Tim Foecke
True stress – true strain data obtained in uniaxial tensile tests.
Only centerline data are used in this study.
No local reduction in specimen thickness was made.
These data are compared to FE data corresponding to loading points shown in Fig. 6.
See section 2.2 for details on material data.
Only centerline data are used in this study.
No local reduction in specimen thickness was made.
These data are compared to FE data corresponding to loading points shown in Fig. 6.
See section 2.2 for details on material data.
Online since: May 2014
Authors: Claas Müller, Holger Reinecke, Lutz Labusch
This time reduction allows in
situ measurements.
A Fourier transformation is performed on the time domain data to transfer the result into the frequency space.
But this set-up requires very fast data sampling to achieve a high resolution of high frequencies and also the possibility to sample a lot of points for the low frequency resolution.
This programme reads the data from the oscilloscope, does the fourier transformation by the FFT algorithm and fits the transfer function to the measured values.
The resolution is limited by the data transfer speed.
A Fourier transformation is performed on the time domain data to transfer the result into the frequency space.
But this set-up requires very fast data sampling to achieve a high resolution of high frequencies and also the possibility to sample a lot of points for the low frequency resolution.
This programme reads the data from the oscilloscope, does the fourier transformation by the FFT algorithm and fits the transfer function to the measured values.
The resolution is limited by the data transfer speed.