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Online since: September 2005
Authors: Xin Lu Li, Qing Liu, Andrew Godfrey, Wei Liu
Experiment
High purity nickel (99.999%) was rolled to a reduction of 98% (final thickness of 90µm).
Compared with data for samples annealed under similar conditions but without a magnetic field (indicated in Fig. 3 by a solid line), magnetic field annealing results in a lower cube-texture volume fraction, except for the case of annealing with the sample normal aligned at 58º to the magnetic field direction.
For all but one angle the application of a magnetic field during annealing results in a reduction in the cube-texture volume fraction after annealing compared to annealing without a magnetic field, and in all cases the average grain size for all grains and for just cube-orientation grains is lower when a magnetic field is applied during annealing.
Compared with data for samples annealed under similar conditions but without a magnetic field (indicated in Fig. 3 by a solid line), magnetic field annealing results in a lower cube-texture volume fraction, except for the case of annealing with the sample normal aligned at 58º to the magnetic field direction.
For all but one angle the application of a magnetic field during annealing results in a reduction in the cube-texture volume fraction after annealing compared to annealing without a magnetic field, and in all cases the average grain size for all grains and for just cube-orientation grains is lower when a magnetic field is applied during annealing.
Online since: May 2012
Authors: Patricia M. Mooney, Leonard C. Feldman, John R. Williams, Alberto F. Basile, Sarit Dhar
A significant reduction of the interface state density at energies close to the SiC conduction band edge has been achieved by the incorporation of nitrogen (N) atoms, via post-oxidation annealing in nitric oxide (NO) gas [1] or by pre-oxidation implantation of N atoms [2].
NO annealing for 2hrs at 1175⁰C results in an order of magnitude reduction of near-interface traps energetically close to the SiC conduction band and a corresponding increase of the channel mobility to ~40cm2/(V·s) in MOS transistors on the Si-face of 4H-SiC.
Secondary-Ion-Mass spectrometry (SIMS) data for the highest N-implanted dose show preferential accumulation of N atoms on the oxide side of the interface, with a volume concentration of ~5x1020 cm-3 at the interface decreasing to the detection limit of ~3x1018cm-3 at a distance of ~6nm from the interface [3].
NO annealing for 2hrs at 1175⁰C results in an order of magnitude reduction of near-interface traps energetically close to the SiC conduction band and a corresponding increase of the channel mobility to ~40cm2/(V·s) in MOS transistors on the Si-face of 4H-SiC.
Secondary-Ion-Mass spectrometry (SIMS) data for the highest N-implanted dose show preferential accumulation of N atoms on the oxide side of the interface, with a volume concentration of ~5x1020 cm-3 at the interface decreasing to the detection limit of ~3x1018cm-3 at a distance of ~6nm from the interface [3].
Online since: July 2012
Authors: Wen Ying Li, Xiao Hong Li, Shu Jiao Zhang, Jie Feng, Qian Wang, Hong Xia Fan
The reasons for the reduction in the specific surface can be explained as follows [7]: either the deposited active oxides may penetrate into pores of the support, which causes the narrow of its pore diameter and the blockage of some micropores, or the solid-state reaction between the supporting oxides and the dispersed active oxide.
Figure 1 XRD patterns of (a) TiO2 standard data from JCPDS file No 21-1272, (b) Al2O3, (c) TiO2, (d) AT50, (e) V-Fe/AT50 catalyst.
Among numerous studies, the reduction of catalysts activity in the oxidative EDSC process is mainly because of coke deposition [6, 8].
Figure 1 XRD patterns of (a) TiO2 standard data from JCPDS file No 21-1272, (b) Al2O3, (c) TiO2, (d) AT50, (e) V-Fe/AT50 catalyst.
Among numerous studies, the reduction of catalysts activity in the oxidative EDSC process is mainly because of coke deposition [6, 8].
Online since: March 2014
Authors: Alexey A. Nalsky, Sergey P. Timoshenkov, Alexey A. Sherchenkov, Alexandra A. Revina
The formation of nanoparticles may occur by chemical, radiation-chemical or photochemical reduction of the corresponding metal ions [7].
The researches of the physicochemical properties of Zn, Fe, Ag, Pt, Ru, Pd nanoparticles, synthesized by «molecular assemblies» method in reverse micelles based on radiation-chemical or chemical reduction of ion Меn+ reactions and the subsequent formation of nanoscale structures in reverse micelles, were made.
According to indirect data, the nanoparticles are absorbed into the silicon wafer structure.
The researches of the physicochemical properties of Zn, Fe, Ag, Pt, Ru, Pd nanoparticles, synthesized by «molecular assemblies» method in reverse micelles based on radiation-chemical or chemical reduction of ion Меn+ reactions and the subsequent formation of nanoscale structures in reverse micelles, were made.
According to indirect data, the nanoparticles are absorbed into the silicon wafer structure.
Online since: April 2015
Authors: Yi Sheng Huang
Data collected and analyzed could be used as reference in equipment lubrication system diagnosis management, contributing to improvements in tribological techniques and equipment maintenance.
Fig. 6 Super AWS Type Hydraulic Oil Development for Sludge Reduction Performance of Tribology Management The practice of tribology management system in China Steel is primarily for maintaining proper lubrication for mechanical components, preventing sudden equipment failures, and extending useful life of equipment.
The final result is oil compatibility confirmation, material number reduction, procurement source increase, and oil cost decrease.
Fig. 6 Super AWS Type Hydraulic Oil Development for Sludge Reduction Performance of Tribology Management The practice of tribology management system in China Steel is primarily for maintaining proper lubrication for mechanical components, preventing sudden equipment failures, and extending useful life of equipment.
The final result is oil compatibility confirmation, material number reduction, procurement source increase, and oil cost decrease.
Online since: May 2016
Authors: Yoshinori Ando, Iwanori Murakami, Kenji Uchibori, Koji Chigra
About transmitting a torque, many reports have studied on reduction of improvement of the maximum transmission torque and the cogging torque [1-7].
(c) In the case when the gear gap and the required step out torque are given, the data are calculated by Eq. 6-13.
Hirata, Cogging Torque Reduction Method of a Magnetic-Geared Motor, Proceedings of MAGDA 2011, pp.343-348, (2011) [5] M.
(c) In the case when the gear gap and the required step out torque are given, the data are calculated by Eq. 6-13.
Hirata, Cogging Torque Reduction Method of a Magnetic-Geared Motor, Proceedings of MAGDA 2011, pp.343-348, (2011) [5] M.
Online since: December 2010
Authors: Hiroki Adachi, Ehsan Borhani, Hamidreza Jafarian, Daisuke Terada, Nobuhiro Tsuji
The starting sheets with thickness of 2 mm were firstly cold-rolled by 50% reduction in thickness.
The 50% rolled sheets 1mm thick were cut into two, degreased and wire-brushed the surfaces, and then roll-bonded by 50% reduction in one pass at ambient temperature with lubrication.
The data of average grain size (dt) were finally plotted as a function of annealing temperature in Fig. 7, in order to investigate how the dt was affected by dispersoids during annealing.
The 50% rolled sheets 1mm thick were cut into two, degreased and wire-brushed the surfaces, and then roll-bonded by 50% reduction in one pass at ambient temperature with lubrication.
The data of average grain size (dt) were finally plotted as a function of annealing temperature in Fig. 7, in order to investigate how the dt was affected by dispersoids during annealing.
Online since: December 2010
Authors: Rustam Kaibyshev, Andrey Belyakov, Iaroslava Shakhova, Yoshikazu Sakai
Very small interconnects are required due to continuing reduction in the size of electronic parts.
Reduction in the thickness of copper alloy contacts decreases the contact spring force and increases the electro-resistance.
The sizes of second phase particles were estimated by averaging the TEM data of about 100 measurements of individual particles in each sample.
Reduction in the thickness of copper alloy contacts decreases the contact spring force and increases the electro-resistance.
The sizes of second phase particles were estimated by averaging the TEM data of about 100 measurements of individual particles in each sample.
Online since: November 2011
Authors: Xue Han, Lan Wei Zhang, Wei Jun Wang, Li Li Zhang, Yan Hua Li, Rong Bo Fan
However, reduction in fat content of cheese generally leads to the impairment of the textural characteristic [3].
Experimental data were statistically analyzed using PASWStatistics18.0 Software (SPSS Inc, USA).
The change was agreement the reported study, which pointed out the reduction in fat content resulted in the increases in the apparent viscosity and melt time and a decrease in the flowability of the cheese [8].
Experimental data were statistically analyzed using PASWStatistics18.0 Software (SPSS Inc, USA).
The change was agreement the reported study, which pointed out the reduction in fat content resulted in the increases in the apparent viscosity and melt time and a decrease in the flowability of the cheese [8].
Online since: October 2014
Authors: Wen Hui Shi, Kui Luo, Hao Zha
Those wind power planning approaches mainly pay attention to the wind power accommodation and wind power benefits, while the impact of wind power integration on the existing conventional units is with little consideration, which appears to reduce the efficiency of conventional units and increase the fuel consumption, resulting in reduction of planning economy due to the large-scale wind power integration[10].
Wind power planning aims at large-scale wind power accommodation, giving full play to the wind of low carbon, energy saving and emission reduction benefits, at the same time the investment and operating costs of system due to the integration of wind power would not be increased significantly.
Table.1 Data of thermal units Pmax (MW) Pmin (MW) a (¥/h) b (¥/MWh) min up time(h) min dn time (h) hot start cost(¥) cold start cost(¥) ramp up (MW/h) ramp dn (MW/h) region 1 455 200 1000 16.2 8 8 4500 9000 80 80 1 2 455 200 970 17.3 8 8 5000 10000 455 455 5 3 455 200 800 17.2 8 8 4500 9000 80 80 2 4 230 100 700 16.6 5 5 550 1100 40 40 2 5 230 100 680 16.5 5 5 560 1120 40 40 3 6 162 25 450 19.7 6 6 900 1800 162 162 1 7 80 20 370 22 3 3 170 340 80 80 4 The optimal wind power planning schemes of this case study are presented in Table.2, also including evaluation index, such as thermal units average load rate, abandoned wind rate and transmission line load rate.
Wind power planning aims at large-scale wind power accommodation, giving full play to the wind of low carbon, energy saving and emission reduction benefits, at the same time the investment and operating costs of system due to the integration of wind power would not be increased significantly.
Table.1 Data of thermal units Pmax (MW) Pmin (MW) a (¥/h) b (¥/MWh) min up time(h) min dn time (h) hot start cost(¥) cold start cost(¥) ramp up (MW/h) ramp dn (MW/h) region 1 455 200 1000 16.2 8 8 4500 9000 80 80 1 2 455 200 970 17.3 8 8 5000 10000 455 455 5 3 455 200 800 17.2 8 8 4500 9000 80 80 2 4 230 100 700 16.6 5 5 550 1100 40 40 2 5 230 100 680 16.5 5 5 560 1120 40 40 3 6 162 25 450 19.7 6 6 900 1800 162 162 1 7 80 20 370 22 3 3 170 340 80 80 4 The optimal wind power planning schemes of this case study are presented in Table.2, also including evaluation index, such as thermal units average load rate, abandoned wind rate and transmission line load rate.