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Online since: August 2011
Authors: Hui Yong Guo, Wen Bo Huang, Wen Fang Li, Guo Ge Zhang, En Fu Wang
The results indicated that XRD pattern of the film matches with PDF No.00-040-1500 (tetragonal SrTiO3).This indicated that the film was mainly composed of tetragonal SrTiO3 grains. according to the XRD pattern, a small quantity of SrCO3 also likely existed.
With the increase of current density from 2A/cm2 to 3A/cm2, the number of cavities per unit area decreased, meanwhile, hole became bigger and more irregular.
As frequency was raised from 50Hz to 150Hz, the surface morphology became smoother and the number of cavities per unit area decreased, although some much bigger ones appeared on the surface.
With the increase of current density from 2A/cm2 to 3A/cm2, the number of cavities per unit area decreased, meanwhile, hole became bigger and more irregular.
As frequency was raised from 50Hz to 150Hz, the surface morphology became smoother and the number of cavities per unit area decreased, although some much bigger ones appeared on the surface.
Online since: January 2005
Authors: H. Srikanth, P. Poddar
Introduction
Nanostructured materials are known to show a variety of novel electrical, thermal, mechanical,
magnetic and optical properties as the grain size is reduced to the nanometer length scale.
A number of MR fluid samples were prepared with hydraulic oil as the fluid medium.
For the Hybrid MR fluid, the stem of each chain was very solid and dense with each stem being well separated with lesser number of pores inside the chain.
A number of MR fluid samples were prepared with hydraulic oil as the fluid medium.
For the Hybrid MR fluid, the stem of each chain was very solid and dense with each stem being well separated with lesser number of pores inside the chain.
Online since: January 2012
Authors: G.C. Lin, H. Liu, J.X. Zhang
Furthermore, the oxygen content was found to vary with different synthetic procedures, and the power factor (=S2/ρ) was found to increase with the number of OVs [6,7], suggesting a possible means of modifying the physical properties.
The internal friction (IF) method is a well-known technique for studying the phase transition and the relaxation of micro-units such as point defects, dislocations, grain boundries and domain walls in ceramic oxides like oxide-ion conductors [8], barium titanate ceramics [9] and so on.
With the existence of large numbers of isolated OVs, and the b axis parameter of RS Ca2CoO3 subsystem increases distinctly, which makes the bond weaker, the relaxation strength increases.
The internal friction (IF) method is a well-known technique for studying the phase transition and the relaxation of micro-units such as point defects, dislocations, grain boundries and domain walls in ceramic oxides like oxide-ion conductors [8], barium titanate ceramics [9] and so on.
With the existence of large numbers of isolated OVs, and the b axis parameter of RS Ca2CoO3 subsystem increases distinctly, which makes the bond weaker, the relaxation strength increases.
Online since: July 2011
Authors: Xiao Lei Zhou, Zhi Guo Luo, Li Hao Han, Zong Shu Zou, Ai Bing Yu
But the descriptions on the internal structure in the melter gasifier are different with a number of patents and papers[1-4].
In the experiment, the wax with the diameter 3 mm was used to simulate DRI and the corn grain with the diameter 3 mm was used to simulate coke and lump coal.
Similarly, the blast volume was calculated according to the Froude number[11, 12].
In the experiment, the wax with the diameter 3 mm was used to simulate DRI and the corn grain with the diameter 3 mm was used to simulate coke and lump coal.
Similarly, the blast volume was calculated according to the Froude number[11, 12].
Online since: February 2014
Authors: Mikuláš Šveda, Radomír Sokolař
In the production of test samples the original untreated raw material was used that was grinded in a laboratory Muller mixer for dry mulling so that the maximum grain was less than 1 mm large.
In this case, small deviations were observed (error is less than 1 %) that were probably caused by a small number of measurements or possibly a larger deviation of a single measurement.
The use of a correlation relationship to determine the compressive strength from the bulk density value Conclusion Based on the achieved results, we can state that correlation relationships between physical properties can be determined in the porous brick body using a fewer numbers of measurements than mentioned in the previous study [6].
In this case, small deviations were observed (error is less than 1 %) that were probably caused by a small number of measurements or possibly a larger deviation of a single measurement.
The use of a correlation relationship to determine the compressive strength from the bulk density value Conclusion Based on the achieved results, we can state that correlation relationships between physical properties can be determined in the porous brick body using a fewer numbers of measurements than mentioned in the previous study [6].
Online since: November 2013
Authors: Elahe Akbari, Nooshin Ayati, Seyed Pirooz Marashi
The initial abrupt downward current is due to the formation of a large amount of nuclei at the pore mouth and charging of a diffusive layer around each grain.
It is reported that the formation of such a peak is attributed to the nucleation-growth process of ZnO; in fact, it could be concluded that an increase in overpotential leads to a higher nucleation rate and number of active sites [19].
This voltage increase leads to a higher nucleation rate and number of active sites; however, SEM observation revealed that altering deposition voltage had a slight effect on the length of NWs, as the length of NWs prepared at three different voltages was roughly the same and reached to approximately 6 µm.
It is reported that the formation of such a peak is attributed to the nucleation-growth process of ZnO; in fact, it could be concluded that an increase in overpotential leads to a higher nucleation rate and number of active sites [19].
This voltage increase leads to a higher nucleation rate and number of active sites; however, SEM observation revealed that altering deposition voltage had a slight effect on the length of NWs, as the length of NWs prepared at three different voltages was roughly the same and reached to approximately 6 µm.
Online since: February 2017
Authors: Gabor Por, Balazs Fekete, Peter Trampus
Since that the number of publication is growing in this field.
When the cooling starts the number of ABE events growth.
Finally, in the area No 5, where the specimen ruptured, the grains show plastic elongation before the rupture.
When the cooling starts the number of ABE events growth.
Finally, in the area No 5, where the specimen ruptured, the grains show plastic elongation before the rupture.
Online since: May 2020
Authors: Dmitry I. Lebedev
The burning temperature of the electric arc between the electrodes can reach ~ 4000 ÷ 5000 ° C, while the wire material goes into the liquid phase, which ensures the formation of a large number of fine particles.
Tungsten has a number of positive properties; even small additives of tungsten increase the hardness of these metals and their resistance to oxidation.
[18] Rui-Jun Cao, Chen-Guang Lin, Xing-Cheng Xie, Zhong-Kun Lin, Microstructure and mechanical properties of WC–Co-based cemented carbide with bimodal WC grain size distribution, J.
Tungsten has a number of positive properties; even small additives of tungsten increase the hardness of these metals and their resistance to oxidation.
[18] Rui-Jun Cao, Chen-Guang Lin, Xing-Cheng Xie, Zhong-Kun Lin, Microstructure and mechanical properties of WC–Co-based cemented carbide with bimodal WC grain size distribution, J.
Online since: June 2012
Authors: Jun Zhang, Hui Ding, Ming Li, Guan Bing Ma
The two models have been found to be suitable for a number of applications.
For example, Safizadeh pointed out that the number of flaw size in the transition region would essentially affect the POD curves and the Rayleigh distribution flaw size could increase the accuracy of POD evaluation [4].
The coarse grains and anisotropic acoustic property of this material can essentially affect the ultrasonic inspection result.
For example, Safizadeh pointed out that the number of flaw size in the transition region would essentially affect the POD curves and the Rayleigh distribution flaw size could increase the accuracy of POD evaluation [4].
The coarse grains and anisotropic acoustic property of this material can essentially affect the ultrasonic inspection result.
Online since: September 2013
Authors: Jin Long Zuo, Zhi Wei Liu, Han Qiang Tang, Biao Li
In China, sauce is major made by soybeans, with relatively low amounts of other grains [1].
Tab.3 PAC dosage of removal efficiency of the color The number of tube 1 2 3 4 Influent color/times 200 200 200 200 PAC dosage/mg 10 20 30 40 Effluent color /times 157 144 126 89 As shown in Table 3, pure poly-aluminum chloride (PAC) decolorized sauce wastewater, cannot meet the effluent standards.
Tab.4 Color removal efficiency of different amounts of active carbon dosing Number of tube 1 2 3 4 PAC Effluent color / times 157 144 126 89 The amount of activated carbon/g 3.0 2.5 1.5 1.0 Effluent color / times 19 45 17 38 As shown in Table 4 by further decolonization a, effluent quality is all compliance, Leftmost wastewater effluent, the color is about 200 times, 1 to 4 the management of water for the treatment of wastewater, color is less than 50 times.
Tab.3 PAC dosage of removal efficiency of the color The number of tube 1 2 3 4 Influent color/times 200 200 200 200 PAC dosage/mg 10 20 30 40 Effluent color /times 157 144 126 89 As shown in Table 3, pure poly-aluminum chloride (PAC) decolorized sauce wastewater, cannot meet the effluent standards.
Tab.4 Color removal efficiency of different amounts of active carbon dosing Number of tube 1 2 3 4 PAC Effluent color / times 157 144 126 89 The amount of activated carbon/g 3.0 2.5 1.5 1.0 Effluent color / times 19 45 17 38 As shown in Table 4 by further decolonization a, effluent quality is all compliance, Leftmost wastewater effluent, the color is about 200 times, 1 to 4 the management of water for the treatment of wastewater, color is less than 50 times.