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Online since: July 2011
Authors: Dong Fang Lu, Yu Hua Wang, Wei Sun, Dong Liang Lu, Yue Hua Hu
The cylinder was assembled by a number of cylinder units linked by flanges.
In the meanwhile, fine-grained and low density ore slime and parts of fine diaspore can move upward with the water flow, the slime was resisted by the Z-shaped inclined plate, the flow turbulent fluctuation was weakened and the rotational motion was turned into upwelling along the inclined plate.
From the radical results of section speed distribution, it can be concluded that high speed appears around the rotator and the speed become gradually weak when flow through the tilting plates, which is contribute to the settlement of the fine-grained grade materials and radical split.
In the meanwhile, fine-grained and low density ore slime and parts of fine diaspore can move upward with the water flow, the slime was resisted by the Z-shaped inclined plate, the flow turbulent fluctuation was weakened and the rotational motion was turned into upwelling along the inclined plate.
From the radical results of section speed distribution, it can be concluded that high speed appears around the rotator and the speed become gradually weak when flow through the tilting plates, which is contribute to the settlement of the fine-grained grade materials and radical split.
Online since: May 2015
Authors: Thomas Geue, Jochen Stahn, Harald Schmidt, Florian Strauß
The presence of significant amounts of nano-crystals with a grain size larger than 1 nm can be ruled out, too, as a peak width of less than 5° is expected in this case.
This research project has been supported by the European Commission under the 7th Framework Programme through the 'Research Infrastructures' action of the 'Capacities' Programme, NMI3-II Grant number 283883.
Priolo, Crystal grain nucleation in amorphous silicon, J.
This research project has been supported by the European Commission under the 7th Framework Programme through the 'Research Infrastructures' action of the 'Capacities' Programme, NMI3-II Grant number 283883.
Priolo, Crystal grain nucleation in amorphous silicon, J.
Online since: April 2015
Authors: Jiu Hui Li, Yu Fei Shao, Xing Zhao, Xin Yang
., dislocation, grain boundary.
(c), Local strain tensor proposed by Zimmerman [14] When information about the position of each atom in a crystal lattice is readily available, one can define the following tensor for atom l: , (3) , (4) , (5) where the quantity N refers to the number of nearest neighbors, ril is the current coordinate, i runs over x, y, z, d0 is the equilibrium distance between atom l and its neighbor k.
Ma, In Situ Observation of Dislocation Behavior in Nanometer Grains, Phys.
(c), Local strain tensor proposed by Zimmerman [14] When information about the position of each atom in a crystal lattice is readily available, one can define the following tensor for atom l: , (3) , (4) , (5) where the quantity N refers to the number of nearest neighbors, ril is the current coordinate, i runs over x, y, z, d0 is the equilibrium distance between atom l and its neighbor k.
Ma, In Situ Observation of Dislocation Behavior in Nanometer Grains, Phys.
Online since: January 2020
Authors: Hai Tao Sun, Sa Zhang, Hui Yong Deng, Kai Bo Cui, Fang Zhao
At the same time, a large number of porous structures make the mechanical wave easier to produce reflection, refraction and diffraction in the process of propagation, which is conducive to the absorption of electromagnetic wave by materials.
It can be seen from the (111) crystal plane diffraction peaks of Co that the width of the diffraction peaks increases with the increase of PMMA proportion in the blend fibers, which indicates that the grain size decreases gradually [5].
During the mixing process of the two polymer solutions, some metal salts will enter the PMMA solution, resulting in the decrease of the grain size of Co in the final porous fiber.
It can be seen from the (111) crystal plane diffraction peaks of Co that the width of the diffraction peaks increases with the increase of PMMA proportion in the blend fibers, which indicates that the grain size decreases gradually [5].
During the mixing process of the two polymer solutions, some metal salts will enter the PMMA solution, resulting in the decrease of the grain size of Co in the final porous fiber.
Online since: May 2020
Authors: V.V. Aksenova, G.A. Dorofeev, Olga M. Kanunnikova
Increasing the time of MA to 5 h activates the destruction of alkenes and polyalkenes chains, so again there is a large number of dienes and structures with isolated double bonds: reducing the intensity in the peak regions of 240 nm and 200-220 nm.
During MA, the gradual decrease in the grain size of the HCP phase to 9 nm is observed, while the grain size of the FCC phase is just as small since its formation.
During MA, the gradual decrease in the grain size of the HCP phase to 9 nm is observed, while the grain size of the FCC phase is just as small since its formation.
Online since: October 2020
Authors: J.C. de Macêdo Neto, R.N.A. Silva, J.C.M. Costa, S.P.R. Kimura, B.M. Freitas, J.A. da Silva, A.G. Miranda, S.C. Guimarães Leite
All samples were rotated at 90 ° angle for polishing with nano cloth number 8.
The presence of a smaller amount of precipitates and a grain growth in the ZTA is observed.
Also with the heating of the ZTA there was an increase in the size of the precipitates of the grain contours reducing the interaction between the precipitates and dislocations which reduced microhardness in this region [3].
The presence of a smaller amount of precipitates and a grain growth in the ZTA is observed.
Also with the heating of the ZTA there was an increase in the size of the precipitates of the grain contours reducing the interaction between the precipitates and dislocations which reduced microhardness in this region [3].
Online since: July 2020
Authors: Nono Darsono, Lutviasari Nuraini, Adri Nora, Nurhayati Indah Ciptasari, Lusiana Lusiana, Muhamad I. Amal
The large particles were formed as the calcinations process were performed at a relatively high temperature of 950 ºC in a considerably long time up to 5 hours, thus allowing grain growth (coarsening), densification and agglomeration.
The stability of molecules on the surface of particles is low and this condition make surface molecules migrate into solution and decreasing the particle, thus increasing the number of free molecules in solution.
Dense and fine-grained barium titanate prepared by spark plasma sintering, Journal of Physics: Conference Series 1191 (2019) 012039
The stability of molecules on the surface of particles is low and this condition make surface molecules migrate into solution and decreasing the particle, thus increasing the number of free molecules in solution.
Dense and fine-grained barium titanate prepared by spark plasma sintering, Journal of Physics: Conference Series 1191 (2019) 012039
Online since: July 2011
Authors: Song Gao, Li Dai
The grain size of lime rock varies from 10mm to 30mm, and the properties of crushed stone are shown in Table 2.
Table 1 Properties of cement Physical properties Values of national standard reference Values of test Degree of fineness: sieve residue after0.08 square hole[%] <10 3.7 Specific density - 3.2 Time of setting Standard consistency [%] - 27.1 Initial setting time [h:m] ≥45 minutes 2:50 Final setting time [h:m] ≤10 hours 4:35 Soundness (method of steam digestion) - Qualified Flexure strength [MPa] 28d - 7.9 Compression strength [MPa] - 57.2 Table 2 Properties of crushed stone Crushing value Abrasion value Sediment percentage Percentage of elongated and flaky grain 3.83% 3.43% 0.565% 8.14% Flyash.
Therefore, with the accumulation of numbers of freezing and thawing cycles, the mass loss rate of flyash concrete increases so much so that it exceeds the mass loss rate of reference concrete blended with the admixtures.
Table 1 Properties of cement Physical properties Values of national standard reference Values of test Degree of fineness: sieve residue after0.08 square hole[%] <10 3.7 Specific density - 3.2 Time of setting Standard consistency [%] - 27.1 Initial setting time [h:m] ≥45 minutes 2:50 Final setting time [h:m] ≤10 hours 4:35 Soundness (method of steam digestion) - Qualified Flexure strength [MPa] 28d - 7.9 Compression strength [MPa] - 57.2 Table 2 Properties of crushed stone Crushing value Abrasion value Sediment percentage Percentage of elongated and flaky grain 3.83% 3.43% 0.565% 8.14% Flyash.
Therefore, with the accumulation of numbers of freezing and thawing cycles, the mass loss rate of flyash concrete increases so much so that it exceeds the mass loss rate of reference concrete blended with the admixtures.
Online since: November 2006
Authors: C.P. Bergmann, S.R. Bragança
., grain size and porosity.
(MPa) KIc (MPa.m 1/2 ) (FM) KIc (MPa.m 1/2 ) (indentation) Vickers Hardness A 0.18 0.15 0.46 0.38 2.58 0.06 68 5.40 1.80 0.17 1.96 0.23 719 29 B 0.48 0.17 1.15 0.42 2.44 0.05 66 7.90 2.17 0.33 2.22 0.41 688 44 C 0.61 0.19 1.49 0.45 2.45 0.08 71 6.60 1.98 0.20 1.80 0.24 685 37 D 0.95 0.35 2.30 0.85 2.43 0.07 52 5.10 1.60 0.29 1.93 0.43 696 23 Superscript numbers: Standard deviations.
In literature, it can be found for alumina that changing grain size from 1-2 µm to 10-12 µm caused a change in fracture toughness from 2.5-3.0 MPa.m1/2 to 4.5 MPa.m1/2 [8].
(MPa) KIc (MPa.m 1/2 ) (FM) KIc (MPa.m 1/2 ) (indentation) Vickers Hardness A 0.18 0.15 0.46 0.38 2.58 0.06 68 5.40 1.80 0.17 1.96 0.23 719 29 B 0.48 0.17 1.15 0.42 2.44 0.05 66 7.90 2.17 0.33 2.22 0.41 688 44 C 0.61 0.19 1.49 0.45 2.45 0.08 71 6.60 1.98 0.20 1.80 0.24 685 37 D 0.95 0.35 2.30 0.85 2.43 0.07 52 5.10 1.60 0.29 1.93 0.43 696 23 Superscript numbers: Standard deviations.
In literature, it can be found for alumina that changing grain size from 1-2 µm to 10-12 µm caused a change in fracture toughness from 2.5-3.0 MPa.m1/2 to 4.5 MPa.m1/2 [8].
Online since: January 2011
Authors: Siqingaowa Bao, Zhan Xin Ma
In order to analyze the effectiveness that the electric field conditions affect the biochemical index of wheat, we select the Yongliang number 4 wheat seed (Triticum aestivum L.) provided by Inner Mongolia MengFeng Seed Company and the device in paper [1] to do the experiment.
We selected the seeds with uniform size and full grain, and divided them into 13 groups, of which first group was selected as the standard group, and the other 12 groups were processed separately with different electric field intensity.
Each group has three repeat, and each repeat is 3*100 grain.
We selected the seeds with uniform size and full grain, and divided them into 13 groups, of which first group was selected as the standard group, and the other 12 groups were processed separately with different electric field intensity.
Each group has three repeat, and each repeat is 3*100 grain.