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Online since: March 2011
Authors: Robert J. McMurray, Alan G. Leacock, Desmond Brown
The predicted results correlate well with the experimental data, which had initially demonstrated the asymmetric springback
Introduction
To ensure full traceability in aircraft production, metal sheet is generally labelled on one side by the manufacturer of the sheet.
Using a best fit to the experimental data, functions were found for the Alclad sheet of; σalclad=301.89+661.39ε-εy0.556 Equation 3 σcladding=35+170.37ε-εy0.263 Equation 4 σcore=334.69+731.03ε-εy0.569 Equation 5 where in this case, εy has not been explicitly stated: for now it will remain equal to the yield stress divided by the elastic modulus.
Assuming that the entire alloy core only sees uniform elastic deformation, it will see a reduction of 468MPa during recovery.
If both the reduction in tensile strain and the final radius were known, the strain distribution through the sheet thickness can again be given as; εi'=yRs+εs' Equation 8 Where εi' and εs' are simply the strains after elastic recovery.
The magnitude of the normal springback matches the experimental trend very well, and the reduction in springback with increasing strain shows a good correlation.
Using a best fit to the experimental data, functions were found for the Alclad sheet of; σalclad=301.89+661.39ε-εy0.556 Equation 3 σcladding=35+170.37ε-εy0.263 Equation 4 σcore=334.69+731.03ε-εy0.569 Equation 5 where in this case, εy has not been explicitly stated: for now it will remain equal to the yield stress divided by the elastic modulus.
Assuming that the entire alloy core only sees uniform elastic deformation, it will see a reduction of 468MPa during recovery.
If both the reduction in tensile strain and the final radius were known, the strain distribution through the sheet thickness can again be given as; εi'=yRs+εs' Equation 8 Where εi' and εs' are simply the strains after elastic recovery.
The magnitude of the normal springback matches the experimental trend very well, and the reduction in springback with increasing strain shows a good correlation.
Online since: October 2015
Authors: Oras A. Al-Ani, Ahmed M. A. Sabaawi, J.P. Goss, N.E.B. Cowern, P.R. Briddon, M.J. Rayson
Introduction
Cost reduction of photovoltaic (PV) material is an important issue in the development of future economic
fabrication of solar cells.
Furthermore, recombination, mobility reduction and minority carrier lifetime effects are directly associated with the both impurity and structural imperfections in the crystal structure, and hence, degrade the solar cell performance [6, 7].
The data obtained at the quantum-mechanical level provide the basis for device level simulation using TCAD Sentaurus, to simulate Si solar cell by employing the transfer matrix method.
Electronic and optical calculations From the band-structure data (not shown), show the EDs have band gaps similar to the band-gap of crystalline silicon, so that they are not expected to significantly impact upon efficient photovoltaic operation.
However, on the basis that EDs may efficiently getter mobile Fe contamination from the bulk of the grains, the overall efficiency of the device may be enhanced by reduction of non-radiative recombination in these active regions.
Furthermore, recombination, mobility reduction and minority carrier lifetime effects are directly associated with the both impurity and structural imperfections in the crystal structure, and hence, degrade the solar cell performance [6, 7].
The data obtained at the quantum-mechanical level provide the basis for device level simulation using TCAD Sentaurus, to simulate Si solar cell by employing the transfer matrix method.
Electronic and optical calculations From the band-structure data (not shown), show the EDs have band gaps similar to the band-gap of crystalline silicon, so that they are not expected to significantly impact upon efficient photovoltaic operation.
However, on the basis that EDs may efficiently getter mobile Fe contamination from the bulk of the grains, the overall efficiency of the device may be enhanced by reduction of non-radiative recombination in these active regions.
Online since: June 2008
Authors: A.A. de A. Mendes Filho, Vitor Luiz Sordi, José Benaque Rubert, Maurizio Ferrante
Finally, the data
show that the deformation characteristics of the materials here studied do not exert a measurable
influence on the shear strain magnitude and distribution.
1.
For instance, Nakashima et al analyzed the effect of Φ on the grain size reduction efficiency and found that an angle of 90o associated with sample rotation between passes (Route Bc) gave the best results [4].
Quantitative data on γ was obtained as shown and measurement accuracy is estimated to be 0 o 30`.
As a consequence: the local strain decreases and the strain field becomes more heterogeneous, as shown by the experimental and the simulated data.
This reduction of pressing loads is important when dealing with high strength materials, such as steel and Ti alloys.
For instance, Nakashima et al analyzed the effect of Φ on the grain size reduction efficiency and found that an angle of 90o associated with sample rotation between passes (Route Bc) gave the best results [4].
Quantitative data on γ was obtained as shown and measurement accuracy is estimated to be 0 o 30`.
As a consequence: the local strain decreases and the strain field becomes more heterogeneous, as shown by the experimental and the simulated data.
This reduction of pressing loads is important when dealing with high strength materials, such as steel and Ti alloys.
Online since: October 2014
Authors: Ashot Yu. Safaryan, Artyom A. Aloyan
However, all these developments and urban documents as products of transition period are based on relatively incomplete taxon data.
The process, which was followed by a break of former economic ties throughout the former Soviet Union, led to a reduction in industrial and agricultural production.
As a result of economic reforms, the imposition of a new currency, privatization, price liberalization and curtailment of production, a significant reduction has occurred in real wages and in the workforce, a mass unemployment has started.
According to UNDP data, the human development index, as an assessment of long-term progress in three basic indicators of human development: life expectancy, access to education, decent living standards [3], increased from 0.601 to 0.729 that in general was 86 indicators of 187 countries for 2012.
At the same time it is fixed, that all the above mentioned developments and urban documents as products of the transition period are based on relatively unreliable taxonomic data, both in terms of demographics, and in socio - economic aspect.
The process, which was followed by a break of former economic ties throughout the former Soviet Union, led to a reduction in industrial and agricultural production.
As a result of economic reforms, the imposition of a new currency, privatization, price liberalization and curtailment of production, a significant reduction has occurred in real wages and in the workforce, a mass unemployment has started.
According to UNDP data, the human development index, as an assessment of long-term progress in three basic indicators of human development: life expectancy, access to education, decent living standards [3], increased from 0.601 to 0.729 that in general was 86 indicators of 187 countries for 2012.
At the same time it is fixed, that all the above mentioned developments and urban documents as products of the transition period are based on relatively unreliable taxonomic data, both in terms of demographics, and in socio - economic aspect.
Online since: November 2025
Authors: Archil Chirakadze, Zakaria Buachidze, Nana Khuskivadze, Irakli Nadiradze
Literature data on global dynamics of total number of commissioned proton and heavy ion therapy devices in 2005–2028 (data with asterisks were obtained taking into account facilities under construction or in planning stage).
Composition data are listed in Table 3.
Experimental data on selectivity of combinations for various contents of CuO.
Experimental data on selectivity index RT CnO of 25 anticancer combinations with various content of CuO nanoparticles.
Experimental data on selectivity of combinations for various contents of ZnO.
Composition data are listed in Table 3.
Experimental data on selectivity of combinations for various contents of CuO.
Experimental data on selectivity index RT CnO of 25 anticancer combinations with various content of CuO nanoparticles.
Experimental data on selectivity of combinations for various contents of ZnO.
Online since: December 2012
Authors: D.R. Kulmukhamedov
Performance degration of traction-speed features (TSS) and fuel efficiency (TE) due to increase of am bien in temperature and, consequently, reduction in efficiency might be partly compensated by decrease of the total gross weight of the road-train.
The Picture 1 illustrates data on the value of gross weight of the load-train which is recommended by the manufacturing plant and matches only a single case of exploitation (Тamb = +30°С).
Prior to take decision on the acquired data, it is required to specify the points of availability of State Standard 21398(vmax, vvtn, imax) [2].
The rotational rate at this speed At this frequency the tracking power is set with a glance of environment temperature– NTT is defined from the tracking power equitation, and then mα This is the weight which provides the vehicle driving speed with the power reduction due to high ambient temperature at 35 km/h on the 3% excessive gradient.
The Picture 1 illustrates data on the value of gross weight of the load-train which is recommended by the manufacturing plant and matches only a single case of exploitation (Тamb = +30°С).
Prior to take decision on the acquired data, it is required to specify the points of availability of State Standard 21398(vmax, vvtn, imax) [2].
The rotational rate at this speed At this frequency the tracking power is set with a glance of environment temperature– NTT is defined from the tracking power equitation, and then mα This is the weight which provides the vehicle driving speed with the power reduction due to high ambient temperature at 35 km/h on the 3% excessive gradient.
Online since: September 2005
Authors: Leo A.I. Kestens, Roumen H. Petrov, Yvan Houbaert
The plates, with a ferrite -pearlite microstructure, were obtained by hot rolling in a
laboratory reversible rolling mill to 66% reduction with the final rolling pass in the two-phase (γ/α)
domain followed by accelerated cooling to 570°C and subsequent slow cooling to room temperature
(coiling simulation).
The total rolling reduction was 66% and after the final rolling pass the plates were subjected to accelerate cooling, followed by a coiling simulation at 570°C.
In order to obtain better data statistics between 6 and 9 scans for each sample orientation were carried out and the results were averaged.
The grain size data in this work were obtained using a grain tolerance angle of 5°and the minimum grain size was chosen to be 2 measuring points which were at least a distance of 1µm apart.
All data points with a confidence index (CI) lower then 0.05 were excluded from the analysis as dubious (the CI quantifies the reliability of the indexed pattern).
The total rolling reduction was 66% and after the final rolling pass the plates were subjected to accelerate cooling, followed by a coiling simulation at 570°C.
In order to obtain better data statistics between 6 and 9 scans for each sample orientation were carried out and the results were averaged.
The grain size data in this work were obtained using a grain tolerance angle of 5°and the minimum grain size was chosen to be 2 measuring points which were at least a distance of 1µm apart.
All data points with a confidence index (CI) lower then 0.05 were excluded from the analysis as dubious (the CI quantifies the reliability of the indexed pattern).
Online since: October 2004
Authors: A. Kellermann Slotemaker, J.H.P. de Bresser, C.J. Spiers, M.R. Drury
Table 1 Characteristic experimental and grain size analysis data.
Characteristic mechanical data and experimental conditions are summarized in Table 1.
The data obtained in the constant strain rate experiments (Fo39-42) were included in the analysis.
Using a conventional power law type strain rate vs. stress relation (έ ~ σ n) the stress exponent, n, was calculated from linear regression leastsquares fits to the data.
As none of our observations point to major dislocation activity, only the grain switching and/or the excess vacancies model appear applicable to our data.
Characteristic mechanical data and experimental conditions are summarized in Table 1.
The data obtained in the constant strain rate experiments (Fo39-42) were included in the analysis.
Using a conventional power law type strain rate vs. stress relation (έ ~ σ n) the stress exponent, n, was calculated from linear regression leastsquares fits to the data.
As none of our observations point to major dislocation activity, only the grain switching and/or the excess vacancies model appear applicable to our data.
Online since: March 2012
Authors: Guo Fu Lin
This is a nonlinear, non-parameter recognition algorithm, by defining a operation on the basis of the probability density function for each data on the level of the training set data and optimized kernel width parameters.
And for a typical, the number of neurons is equal to the number of training data model.
One of the important characteristics of MRI data sets is that neighboring voxels possess similar feature values, and the probability that they belong to the same cluster is great.
Second, since the trained SOM map serves as a good representative of the training samples, its use makes the PNN classifier more robust in the presence of noise data in the original training set.
We corrupt the data with synthetic Rician noise.
And for a typical, the number of neurons is equal to the number of training data model.
One of the important characteristics of MRI data sets is that neighboring voxels possess similar feature values, and the probability that they belong to the same cluster is great.
Second, since the trained SOM map serves as a good representative of the training samples, its use makes the PNN classifier more robust in the presence of noise data in the original training set.
We corrupt the data with synthetic Rician noise.
Online since: July 2014
Authors: Hong Cheng Shao
Data center production line is mainly server-oriented for enterprises, producing VMware vSphere, VMware GSX Server and VMware vCloud.
Power consumption in data centers mainly lies in the IT devices such as refrigeration and ventilation, but power consumption of computers only accounts for the minority.
Data centers are in need of constant fund to update and maintain IT infrastructures, including purchasing cost of softwares as well as operation and maintenance cost.
Property data calculation in computer teaching rooms. 4.1 Use ratio of CPU.
References [1] Wu Ronglong, Design and Implementation of Data Collection and Control System based on VMware Visualization, 2008
Power consumption in data centers mainly lies in the IT devices such as refrigeration and ventilation, but power consumption of computers only accounts for the minority.
Data centers are in need of constant fund to update and maintain IT infrastructures, including purchasing cost of softwares as well as operation and maintenance cost.
Property data calculation in computer teaching rooms. 4.1 Use ratio of CPU.
References [1] Wu Ronglong, Design and Implementation of Data Collection and Control System based on VMware Visualization, 2008