Sort by:
Publication Type:
Open access:
Publication Date:
Periodicals:
Search results
Online since: May 2013
Authors: Juan Wang, Si Yu Lai, Xiao Chuan Chen
Study on Aluminum Reduction from Metallurgical Silicon Using Electron Beam Melting
Juan Wang1, a, Siyu Lai2, b, Xiaochuan Chen3, c
1 College of Computer Science, China West Normal University, NanChong, China
2 Department of Medical Imaging, North Sichuan Medical College, NanChong, China
3 Laboratory for Solar Energy Photovoltaic of Sichuan Province, ChenDu, China
awjuan0712@126.com, blsy_791211@126.com, cXch_ch@126.com
Keywords: silicon, electron beam melting, segregation coefficient, evaporation, removal rate
Abstract.
Hanazawa et al studied on the feasibility of P reduction relying on electron beam irradiation and reduced the content of P in 150kg metallurgical grade silicon from 2.5×10-3% to lower than 1×10-5%.
The reported references are mainly focus on P reduction in Silicon by using EBM, and related works on Al are rarely discussed.
Input data in Table 1 to formulas (7) and (8), so the average Si surface temperature is 1928 K.
Hanazawa et al studied on the feasibility of P reduction relying on electron beam irradiation and reduced the content of P in 150kg metallurgical grade silicon from 2.5×10-3% to lower than 1×10-5%.
The reported references are mainly focus on P reduction in Silicon by using EBM, and related works on Al are rarely discussed.
Input data in Table 1 to formulas (7) and (8), so the average Si surface temperature is 1928 K.
Online since: July 2015
Authors: Niels Modler, Frank Adam, Philipp Kellner, Philipp Knothe, Marco Geuther, Christoph Irmler, Johann Maaß
This leads to significant weight reduction in combination with an increase in functionality.
Optical deformation measurements were performed by using the GOM Aramis system to gain precise crack opening and crack propagation data.
Additionally, nominal stresses in normal and shear mode and elasticity of the boundary layer were implemented to complete the required data for the traction separation law.
As expected, the mechanical behaviour of the 3D-Hybrid B-pillar is equivalent to within 2% of the reference steel structure (and therefore within the experimental margin of error) at a weight reduction of 10%.
After transferring the 3D-Hybrid technology into a complex B-pillar structure, a considerable weight reduction of 10% was determined compared to the reference component.
Optical deformation measurements were performed by using the GOM Aramis system to gain precise crack opening and crack propagation data.
Additionally, nominal stresses in normal and shear mode and elasticity of the boundary layer were implemented to complete the required data for the traction separation law.
As expected, the mechanical behaviour of the 3D-Hybrid B-pillar is equivalent to within 2% of the reference steel structure (and therefore within the experimental margin of error) at a weight reduction of 10%.
After transferring the 3D-Hybrid technology into a complex B-pillar structure, a considerable weight reduction of 10% was determined compared to the reference component.
Online since: February 2013
Authors: Qing Xue Huang, Hong Jie Li, Chang Jiang Ju, Xiu Lian Gong, Jian Mei Wang
In this paper, multi-embedded systems distributed and cooperative control program takes instead of multi L2 server mode, one L2 data collection and record server was remained.
To seek for the reduction resources under the condition of costs equivalence, its mechanical properties and thermal conductivity are better than that of single stainless steels.
Table 1 Functional division of the two systems System 1 System 2 Work roll speed Work roll diameter Backup roll diameter Opening Plate thickness Plate width Material Strain rate Strain degree Deformation temperature Coefficient of friction Plate temperature Initialization data and process data are provided by OPC server, centralized computation is transformed into distributive computation, and thus the overall system performance is improved.
The conclusion is that the error is less than 6% with the measured data comparing with the calculation results (Shown as Table 2).
Table 2 The experimental results Rolling Passes Entry Thickness Reduction (mm) Temperature () Rolling Force(KN) Error (%) Calculation Actually 1 203 25 1237 6190.62 6001.03 3 2 178 25 1227 6470.41 6534.45 1 3 152 20 1216 5949.85 6178.64 5 4 132 25 1201 8428.42 8179.18 3 5 107 15 1194 6121.74 6312.19 4 6 91 15 1174 7205.72 7201.23 0 7 76 13 1165 7114.23 7112.33 0 8 64 13 1134 8741.51 8579.28 2 9 51 8 1122 6465.86 6667.81 3 10 43 8 1078 8178.58 8179.18 0 11 36 8 1064 10161.97 9823.9 4 Acknowledgment This work was financially supported by National Youth Science Foundation of China (51205269) and “973 Program” (2011CB612204).
To seek for the reduction resources under the condition of costs equivalence, its mechanical properties and thermal conductivity are better than that of single stainless steels.
Table 1 Functional division of the two systems System 1 System 2 Work roll speed Work roll diameter Backup roll diameter Opening Plate thickness Plate width Material Strain rate Strain degree Deformation temperature Coefficient of friction Plate temperature Initialization data and process data are provided by OPC server, centralized computation is transformed into distributive computation, and thus the overall system performance is improved.
The conclusion is that the error is less than 6% with the measured data comparing with the calculation results (Shown as Table 2).
Table 2 The experimental results Rolling Passes Entry Thickness Reduction (mm) Temperature () Rolling Force(KN) Error (%) Calculation Actually 1 203 25 1237 6190.62 6001.03 3 2 178 25 1227 6470.41 6534.45 1 3 152 20 1216 5949.85 6178.64 5 4 132 25 1201 8428.42 8179.18 3 5 107 15 1194 6121.74 6312.19 4 6 91 15 1174 7205.72 7201.23 0 7 76 13 1165 7114.23 7112.33 0 8 64 13 1134 8741.51 8579.28 2 9 51 8 1122 6465.86 6667.81 3 10 43 8 1078 8178.58 8179.18 0 11 36 8 1064 10161.97 9823.9 4 Acknowledgment This work was financially supported by National Youth Science Foundation of China (51205269) and “973 Program” (2011CB612204).
Online since: February 2011
Authors: Yi Ding, Hui Li Gong
The precipitation data, NDWI data, and NDVI data in Da Hinggan Ling during June 2010 are selected and analyzed according to the forest fire disaster happened in this area.
NDVI value Figure 3 shows the comparison of vegetation index data.
Secondly, the NDVI values of southwest Da Hinggan Ling in July have obvious reduction than in June.
Summary MODIS data are freely and easily available.
AQUA Earth Observing System satellite data policy, the main technical indicators and data sharing issues Localization,[J] REMOTE SENSING INFORMATION, 2002 (6) : 38~42
NDVI value Figure 3 shows the comparison of vegetation index data.
Secondly, the NDVI values of southwest Da Hinggan Ling in July have obvious reduction than in June.
Summary MODIS data are freely and easily available.
AQUA Earth Observing System satellite data policy, the main technical indicators and data sharing issues Localization,[J] REMOTE SENSING INFORMATION, 2002 (6) : 38~42
Online since: September 2011
Authors: Wei Jun Fan, Lang Bin Jin, Yi Lu, Bin Guo
Experimental data shows that the equipment can accurately and truly detect the performance of the vacuum booster.
It uses data acquisition card PCI-1711L and motion control card MPC07SP for real-time dynamic control.
The module is made up of data acquisition card, sensors, signal conditioning circuit and a linear power supply.
The corresponding relationship of Server load displacement and pulse data is as follows, I represents reduction ratio, n represents guideway lead, h represents the number of pulses required to move unit mm
And data acquisition and motion control modules help the achievement of functional test of vacuum booster.
It uses data acquisition card PCI-1711L and motion control card MPC07SP for real-time dynamic control.
The module is made up of data acquisition card, sensors, signal conditioning circuit and a linear power supply.
The corresponding relationship of Server load displacement and pulse data is as follows, I represents reduction ratio, n represents guideway lead, h represents the number of pulses required to move unit mm
And data acquisition and motion control modules help the achievement of functional test of vacuum booster.
Online since: September 2013
Authors: Teng Li, Hai Tao Liu, Yang Li, Hong Liu
(4)Real-Time Load Model
The load model uses the typical year-week curve, week-day curve and day-hour curve to acquire real-time load data.
Real-time load is calculated as follows: (3) is the peak load,, the ratio of the week load to the maximum load, altogether 52 data, , the ratio of daily load to the maximum load of the weeks, altogether 7 data, and , the ratio of the hour load to the maximum load of the day, altogether 24 data.
That is, if there is a reduction in the load in the last time period, then all the load can be connected at this time, then charge the battery.
If the volume lack at this time is equal to last time, there are no further reductions and no re-accession.
If greater, a further reduction is needed.
Real-time load is calculated as follows: (3) is the peak load,, the ratio of the week load to the maximum load, altogether 52 data, , the ratio of daily load to the maximum load of the weeks, altogether 7 data, and , the ratio of the hour load to the maximum load of the day, altogether 24 data.
That is, if there is a reduction in the load in the last time period, then all the load can be connected at this time, then charge the battery.
If the volume lack at this time is equal to last time, there are no further reductions and no re-accession.
If greater, a further reduction is needed.
Online since: April 2013
Authors: J.R. Romero-Romero, G. Rosas, Rodrigo Alonso Esparza Muñoz, J. Luis López-Miranda
XRD data were collected using a Siemens D5000 X-ray diffractometer (Cu Ka radiation).
In these figures, the dots represent the experimental data and the continuous line is the simulated pattern obtained from the Rietveld refinement analysis.
The simulated XRD data and the experimental data match very well, with a Rwp of 13.95.
This rapid reduction in the crystal size is accompanied by an increase in cell volume.
The structural data obtained here exhibited lattice spacings compatible with monoclinic and orthorhombic symmetries.
In these figures, the dots represent the experimental data and the continuous line is the simulated pattern obtained from the Rietveld refinement analysis.
The simulated XRD data and the experimental data match very well, with a Rwp of 13.95.
This rapid reduction in the crystal size is accompanied by an increase in cell volume.
The structural data obtained here exhibited lattice spacings compatible with monoclinic and orthorhombic symmetries.
Online since: September 2019
Authors: Vasilisa Gorshkova, Yuliya Anishchenko, Anna N. Vtorushina
The risk of burn of various severities was estimated and measures for its reduction were offered.
It is necessary to analyze data on occupational diseases and accidents that have occurred in a company, as well as records of requests for medical assistance.
It is worth pointing out that according to the statistics data, 72% of accidents during welding works could be avoided, if workers followed all safety precautions [15, 16].
The aggregate data on the probability of an incident and the costs of a company in the case of an incident occurrence are used to assess the risk.
The risk of burn of various severities was estimated and measures for its reduction were offered.
It is necessary to analyze data on occupational diseases and accidents that have occurred in a company, as well as records of requests for medical assistance.
It is worth pointing out that according to the statistics data, 72% of accidents during welding works could be avoided, if workers followed all safety precautions [15, 16].
The aggregate data on the probability of an incident and the costs of a company in the case of an incident occurrence are used to assess the risk.
The risk of burn of various severities was estimated and measures for its reduction were offered.
Online since: October 2012
Authors: Zhen Ying Ge
It’s the inevitable trend of industry transformation towards a low carbon economy, and it’s at the core of energy saving and emissions reduction in the short term.
At the Copenhagen Conference, all parties had disputes of energy conservation and emissions reduction.
China made promises about energy conservation and emissions reduction, and promises about controlling the level of exhaust gas emission.
This information presents us with yet another problem, because the heavy chemical industry’s energy consumption is at complete cross purposes to the promotion of energy saving and emission reductions in a low carbon economy.
Of course, we should also create a better environment for innovation, as well as evaluate objectively the existing condition and the basic data of low carbon technology, so we can discover the distinctive difficulties and restraints in embracing low carbon technology innovation.
At the Copenhagen Conference, all parties had disputes of energy conservation and emissions reduction.
China made promises about energy conservation and emissions reduction, and promises about controlling the level of exhaust gas emission.
This information presents us with yet another problem, because the heavy chemical industry’s energy consumption is at complete cross purposes to the promotion of energy saving and emission reductions in a low carbon economy.
Of course, we should also create a better environment for innovation, as well as evaluate objectively the existing condition and the basic data of low carbon technology, so we can discover the distinctive difficulties and restraints in embracing low carbon technology innovation.
Online since: August 2013
Authors: L. Guenfaf, S. Allaoua
The reductions of the peak responses can reach as high as 65% if the actuator is properly chosen.
An AMD system normally comprises of an actuator (either hydraulic or electric type), a servo-control system, a mass block, vibration sensors and a data acquisition system.
The reductions of the peak responses can reach as high as 65% if the actuator is properly chosen.
The roof displacement history without introduction of the actuator’s dynamic model are illustrated in Fig. 4, where large reductions of 78% in roof displacement have been achieved.
Without introduction of the actuator’s dynamic model, the reductions of the peak acceleration response and the peak displacement response could reach as high as 65% and 78% respectively.
An AMD system normally comprises of an actuator (either hydraulic or electric type), a servo-control system, a mass block, vibration sensors and a data acquisition system.
The reductions of the peak responses can reach as high as 65% if the actuator is properly chosen.
The roof displacement history without introduction of the actuator’s dynamic model are illustrated in Fig. 4, where large reductions of 78% in roof displacement have been achieved.
Without introduction of the actuator’s dynamic model, the reductions of the peak acceleration response and the peak displacement response could reach as high as 65% and 78% respectively.