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Online since: August 2011
Authors: Xiao Bo Liu, Wen Kang Yan
Therefore, the most widely used method is still by means of thermal simulation experiment, measuring rheology stress data in a certain strain rate and deformation temperature range, and then based on these data to establish the corresponding rheology stress model.
In this paper, using literature [10] data, the parameters optimize by GA to obtain using the empirical formula.
By a certain coding scheme, the problem solution is expressed by genetic algorithm as an individual structure of a data of genotypes string of the genetic space.
(8) Substitution the n pair of experimental data()into (8), there will be, if in is the error between calculated from the above equation and the actually measured, substitution the n pair of experimental data()into (8), we can get n equations, that is:
Through model validation by experimental data and comparing calculated and experimental results under different deformation rates as shown in Fig.2.
In this paper, using literature [10] data, the parameters optimize by GA to obtain using the empirical formula.
By a certain coding scheme, the problem solution is expressed by genetic algorithm as an individual structure of a data of genotypes string of the genetic space.
(8) Substitution the n pair of experimental data()into (8), there will be, if in is the error between calculated from the above equation and the actually measured, substitution the n pair of experimental data()into (8), we can get n equations, that is:
Through model validation by experimental data and comparing calculated and experimental results under different deformation rates as shown in Fig.2.
Online since: October 2006
Authors: I. Cambero, F.J. Alonso, David Rodríguez Salgado
Data were
acquired taking into account an expected life depending on the cutting conditions.
These signals were processed and logged via a data acquisition card connected directly to a PC.
The same type of network was used to develop a TCMS with the experiment data.
The key issue in many monitoring systems is the reduction of large flows of data from numerous sensors to a few well-correlated features that can be used for process monitoring.
Of the 42 observations given in table 2, the data that are presented in normal type were used to train the network (30 observations) and the data in italics type for validation (12 observations).
These signals were processed and logged via a data acquisition card connected directly to a PC.
The same type of network was used to develop a TCMS with the experiment data.
The key issue in many monitoring systems is the reduction of large flows of data from numerous sensors to a few well-correlated features that can be used for process monitoring.
Of the 42 observations given in table 2, the data that are presented in normal type were used to train the network (30 observations) and the data in italics type for validation (12 observations).
Micro Structural Changes in Welded AlCuLi-Alloys by Positron Annihilation Spectroscopy, SAXS and DSC
Online since: November 2016
Authors: Torsten Staab, Danny Petschke
To acquire Small Angle Scattering data, the samples were measured in a SAXS NANOSTAR by Bruker AXS Inc..
The reduction of the 2d-data to a 1d-scattering curve was performed with the IGOR Pro macro NIKA [13].
However, an atomistic interpretation of these data is not possible at this stage.
This is also clearly seen from the DSC data taken from the weld nugget showing the formation of T1.
Ilavsky, NIKA: software for two-dimensional data reduction, J.
The reduction of the 2d-data to a 1d-scattering curve was performed with the IGOR Pro macro NIKA [13].
However, an atomistic interpretation of these data is not possible at this stage.
This is also clearly seen from the DSC data taken from the weld nugget showing the formation of T1.
Ilavsky, NIKA: software for two-dimensional data reduction, J.
Online since: September 2011
Authors: Yan Shu Zhang, Xiao Fei Liu
In this paper, the hot deformation behavior of GH4169 superalloy were investigated at temperature of 900-1020°C and at strain rate of 0.001-0.1up to a 60% height reduction of the sample using isothermal constant strain rate compression tests on process annealed material.
The load-stroke data obtained in compression were processed to obtain true stress-true strain curves using the standard method.
The absolute errors of more than half of the investigated data are less than 10%.
The load-stroke data obtained in compression were processed to obtain true stress-true strain curves using the standard method.
The absolute errors of more than half of the investigated data are less than 10%.
Online since: December 2011
Authors: Yun Li Feng, Shuang Li, Jin Zhi Yin, Ming Shan Du
Program one is that one group of samples are picked and rolled under the reduction of 80% then are annealed in the box-type furnace at 800˚C for one hour.
Program two is that the other group of samples are annealed in the box-type furnace at 800˚C for tenhour firstly, secondly are picked and rolled under the reduction of 80%, last are annealed in the box-type furnace at 800˚C for one hour.
From the Figure 2’s data of ridging height it is shown that the final annealed sheet’s surface’s roughness of process 1 is bigger than process 2.
Program two is that the other group of samples are annealed in the box-type furnace at 800˚C for tenhour firstly, secondly are picked and rolled under the reduction of 80%, last are annealed in the box-type furnace at 800˚C for one hour.
From the Figure 2’s data of ridging height it is shown that the final annealed sheet’s surface’s roughness of process 1 is bigger than process 2.
Online since: February 2011
Authors: Taghi Tabarsa
Introduction
Regarding raw material demand for particleboard industry and reduction of wood supply from natural forest due to environmental concerns utilization of alternative lngno-cellulosic materials such as bagasse is unavoidable.
Data was analyzed using ANOVA by SPSS software.
In one layer panels in which amount of bagasse is low the negative effect of slenderness on IB is weak so panels presented high IB but when the amount of bagasse increases in one layer panel this negative effect dominates and causes reduction of IB.
Data was analyzed using ANOVA by SPSS software.
In one layer panels in which amount of bagasse is low the negative effect of slenderness on IB is weak so panels presented high IB but when the amount of bagasse increases in one layer panel this negative effect dominates and causes reduction of IB.
Online since: December 2010
Authors: Shen Bo Yu, Hui Dong, Xin Feng, Jing Yuan
Table 1 Main parameter of the PMSM
Items
Data
Rated power [kW]
1
Rated voltage [V]
150
Rated current [A]
5.945
Phase
3
Frequency
133
Numbers of pole-pair
4
Turns in series of per-phase windings
114
Slot numbers
18
Outside diameter of stator [mm]
174
Inside diameter of stator [mm]
120
Length of air gap [mm]
2.5
Length of core [mm]
65
Electromagnetic flux density and intensity are shown in Fig 1 and Fig 2.
Fig. 9 parameters of the stator slot opening Fig. 10 The minimum value of cogging torque Table 2 Contrast on cogging torque of different parameters of stator slot opening b/mm a/° cogging torque/% 2 14 3.5587 16 3.6113 18 3.9113 2.5 14 4.1162 16 3.4293 18 2.7846 3 14 3.7158 16 3.3101 18 3.7410 The election of parameter ‘b’ and ‘a’ is crucial to the cogging torque reduction through the above analysis.
[5] Hwang, S.M., Lieu, D.K.: “Reduction of Torque Ripple in Brushless DC Motors”, IEEE Transactions on Magnetics, Vol. 31(1995), pp. 3737-3739
Fig. 9 parameters of the stator slot opening Fig. 10 The minimum value of cogging torque Table 2 Contrast on cogging torque of different parameters of stator slot opening b/mm a/° cogging torque/% 2 14 3.5587 16 3.6113 18 3.9113 2.5 14 4.1162 16 3.4293 18 2.7846 3 14 3.7158 16 3.3101 18 3.7410 The election of parameter ‘b’ and ‘a’ is crucial to the cogging torque reduction through the above analysis.
[5] Hwang, S.M., Lieu, D.K.: “Reduction of Torque Ripple in Brushless DC Motors”, IEEE Transactions on Magnetics, Vol. 31(1995), pp. 3737-3739
Online since: May 2011
Authors: Chih Hsin Shih, Hou Jin Wu, Wen Hao Chen
The advantages of this platform include pumping liquid with low volume by centrifugation, reduction in reagent/sample consumption, parallel processing, and short turn-around time [1].
All the data points fall on a master curve.
By increasing the depth of the reservoir and adding hydrophilic treatment to the reservoir, the flow resistance in the reservoir is greatly reduced, which results in the reduction of the variation of the burst frequency and makes the sequential flow control more robust.
All the data points fall on a master curve.
By increasing the depth of the reservoir and adding hydrophilic treatment to the reservoir, the flow resistance in the reservoir is greatly reduced, which results in the reduction of the variation of the burst frequency and makes the sequential flow control more robust.
Online since: October 2013
Authors: Mariekie Gericke, Stefan Robertson
The results obtained during the amenability test work were used as baseline data.
Although a reduction in the redox potential level to 580 mV was observed in the first stage reactor at 70°C, stable operation could be achieved at 15% solids (d90=10µm) (Fig. 3),which was in the same range as previously reported [5].
As demonstrated in Figure 3, further increases in the solids concentration to 17.5% resulted in wash-out of the culture as demonstrated by the reduction in both redox potential and oxygen consumption rates.
Although a reduction in the redox potential level to 580 mV was observed in the first stage reactor at 70°C, stable operation could be achieved at 15% solids (d90=10µm) (Fig. 3),which was in the same range as previously reported [5].
As demonstrated in Figure 3, further increases in the solids concentration to 17.5% resulted in wash-out of the culture as demonstrated by the reduction in both redox potential and oxygen consumption rates.
Online since: August 2013
Authors: Jian Wang, Chong Shang Li, Sheng Ji Liu
Relevant data shows that even in the United States, who has the strictest emission limits, small gasoline engine using carburettor is still above 98%[1].
Fuel supply reduction is less than air reduction, and mixture thickens and overrich mixture increase emissions of engine.
Fuel supply reduction is less than air reduction, and mixture thickens and overrich mixture increase emissions of engine.