Sort by:
Publication Type:
Open access:
Publication Date:
Periodicals:
Search results
Online since: January 2012
Authors: S.V.S. Narayana Murty, S.C. Sharma, Niraj Nayan, Alok Agarwal, P.P. Sinha
However, higher magnesium content in the alloy makes it natural aging kinetics faster due to large number of quench in vacancies after solution treatment.
It can be noticed that the grains are equiaxed and recrystallized.
It can be noticed that the grains are fully recrystallized .
The grains are not clearly visible, but the flow patten is clearly visible.
In the shank portion, grains are elongated whereas, in the head portion they are equaxed.
It can be noticed that the grains are equiaxed and recrystallized.
It can be noticed that the grains are fully recrystallized .
The grains are not clearly visible, but the flow patten is clearly visible.
In the shank portion, grains are elongated whereas, in the head portion they are equaxed.
Online since: December 2012
Authors: Bing Wu, Chen Yan Zhang
The result indicates that the number of literature productions on this topic reaches climax of 4 in publication year 2012 and then followed by 2011 and 2007 of three papers respectively.
Meanwhile the number of proceedings paper is 6, one third of the total number.
Then multi-grain mixture topic model based on STG is proposed to model grain topics.
Semantic multi-grain mixture topic model for text analysis.
Meanwhile the number of proceedings paper is 6, one third of the total number.
Then multi-grain mixture topic model based on STG is proposed to model grain topics.
Semantic multi-grain mixture topic model for text analysis.
Online since: March 2017
Authors: Gabriela Maria Atanasiu, Alina Elena Toma
One of the main problems in this industry is lack of storage space and maintaining quality of grain.
Storing grain in silo structures ensure their high quality, efficient protection against the factors that lead to damage and allows keeping all season long and against climatic factors.
The correct design of the silos is a complex process known by a small number of specialists.
The mechanical properties of cereal grains were highlighted when the samples were subjected to various stresses.
The coating of cereal grains has elastic - viscous behavior, the endosperm of the vitreous grains appears as a brittle body, which in the presence of moisture becomes plastic [2].
Storing grain in silo structures ensure their high quality, efficient protection against the factors that lead to damage and allows keeping all season long and against climatic factors.
The correct design of the silos is a complex process known by a small number of specialists.
The mechanical properties of cereal grains were highlighted when the samples were subjected to various stresses.
The coating of cereal grains has elastic - viscous behavior, the endosperm of the vitreous grains appears as a brittle body, which in the presence of moisture becomes plastic [2].
Online since: September 2013
Authors: K. T. Ramakrishna Reddy, Minnam Reddy Vasudeva Reddy, Vummadi Prapulla Geetha Vani
From the SEM analysis, it was observed that needle like grains were distributed on the surface of the substrate and its size decreased with increasing SSD.
It could be seen from the pictures that at lower SSD values the films showed large worm-like-grains that were loosely packed.
But, when the source – substrate distance is increased, the size of the grains decreased with the structure becoming more compact.
However, this resulted in an increase of the number of grains on the surface of the film.
It could be seen from the pictures that at lower SSD values the films showed large worm-like-grains that were loosely packed.
But, when the source – substrate distance is increased, the size of the grains decreased with the structure becoming more compact.
However, this resulted in an increase of the number of grains on the surface of the film.
Online since: August 2014
Authors: Zhi Yang Du, Xin Yu Zhang, Shu Ning Zhong, Tie Hua Zhang, Mu Tian
Kefir is a kind of fermented milk that is produced by inoculating Kefir grains into milk, mainly consisting of bacteria and yeasts.
Kefir is a type of sour fermented milk in which kefir grains are employed as a stareter culture[2].
Materials and Methods Kefir Production The kefir grains used in this study were obtained from Danisco (china) Co., td.
Kefir was produced by adding 0.04 g kefir grains into 1 L of sterile Skimmed milk at 25℃ for 18h.
It is important to note that Bacillus could also be grown on MRS agar, so it is necessary to minus the number of Bacillus when we count lactic acid bacteria.
Kefir is a type of sour fermented milk in which kefir grains are employed as a stareter culture[2].
Materials and Methods Kefir Production The kefir grains used in this study were obtained from Danisco (china) Co., td.
Kefir was produced by adding 0.04 g kefir grains into 1 L of sterile Skimmed milk at 25℃ for 18h.
It is important to note that Bacillus could also be grown on MRS agar, so it is necessary to minus the number of Bacillus when we count lactic acid bacteria.
Online since: October 2010
Authors: Jens Michelsen, Vitaly S. Shumeiko
Figure 1: Sketch of planar artificial grain boundary junction with 0-p/4 misorientation of the crystallographic axes of the electrodes.
Such an experiment was performed in [13] with tilted YBCO grain boundary junctions.
The section is followed by a microscopic derivation and quantitative analysis of the effect in terms of a simplified model depending only on a small number of facet-averaged microscopic parameters, suitable for comparison with experiments.
In d-wave grain boundary junctions the strong temperature dependence is provided by the narrow band of low energy mid-gap states.
This is the case for grain boundary junctions between d-wave superconductors where zero energy surface states (MGS) are present [17].
Such an experiment was performed in [13] with tilted YBCO grain boundary junctions.
The section is followed by a microscopic derivation and quantitative analysis of the effect in terms of a simplified model depending only on a small number of facet-averaged microscopic parameters, suitable for comparison with experiments.
In d-wave grain boundary junctions the strong temperature dependence is provided by the narrow band of low energy mid-gap states.
This is the case for grain boundary junctions between d-wave superconductors where zero energy surface states (MGS) are present [17].
Online since: January 2012
Authors: Renata Włodarczyk
The powder is characterized by a density of 2.67 g
cm-3, whereas powder grain size amounts to ~ 50 mm.
High compression pressure allows grains to ‘mesh’, and gaps between bigger grains to be filled with finer powder grains.
The grains are deformed and the channels/bridges are shortened, which leads to grain growth.
Examination of the microstructure allowed for evaluation of grain size.
The highest contact angle was found for 200/H2 sinter, i.e. 77o; however, all the sinters used in the study are numbered among a group of hydrophilic materials.
High compression pressure allows grains to ‘mesh’, and gaps between bigger grains to be filled with finer powder grains.
The grains are deformed and the channels/bridges are shortened, which leads to grain growth.
Examination of the microstructure allowed for evaluation of grain size.
The highest contact angle was found for 200/H2 sinter, i.e. 77o; however, all the sinters used in the study are numbered among a group of hydrophilic materials.
Online since: March 2007
Authors: Z. Horita, Terence G. Langdon, Minoru Furukawa
If single crystals are used, the deformation
process is not affected by grain boundaries or by interactions between adjacent grains.
Results and Discussion 0°°°° specimen Figure 2 shows an OM image on the Y-plane of Al 0° specimen after pressing and (111) pole figures at positions having numbers labeled on the OM image.
Sub-grain boundaries are aligned in the direction inclined at 45° to the X-axis at position A.
The width of the sub-grains is about 1.3 µm which is the same as the grain size of ECA pressed polycrystalline pure Al [4-6].
The direction of the long axis of the sub-grains accords with the slip traces of the primary slip system.
Results and Discussion 0°°°° specimen Figure 2 shows an OM image on the Y-plane of Al 0° specimen after pressing and (111) pole figures at positions having numbers labeled on the OM image.
Sub-grain boundaries are aligned in the direction inclined at 45° to the X-axis at position A.
The width of the sub-grains is about 1.3 µm which is the same as the grain size of ECA pressed polycrystalline pure Al [4-6].
The direction of the long axis of the sub-grains accords with the slip traces of the primary slip system.
Online since: February 2007
Authors: Tamás Réti, Imre Felde, Agnes Csizmazia
These infinite periodic
cellular systems are constructed from a finite set of space filling convex polyhedra (grains).
The total number N of cells is N=∑ fN where Nf is the number of f-sided cells (f=4,5,... fmax).
The number of faces incident on a common edge can be different.
Eq.(4) n(f) is the mean number of edges of f-sided polyhedral cells, and Fk is the number of ksided faces (interfaces), for which ∑ = FFk .
In order to simulate the austenite transformation processes occurring in steels, the Kelvin polyhedron is widely used to the geometric modelling of the initial austenite grain structure [11].
The total number N of cells is N=∑ fN where Nf is the number of f-sided cells (f=4,5,... fmax).
The number of faces incident on a common edge can be different.
Eq.(4) n(f) is the mean number of edges of f-sided polyhedral cells, and Fk is the number of ksided faces (interfaces), for which ∑ = FFk .
In order to simulate the austenite transformation processes occurring in steels, the Kelvin polyhedron is widely used to the geometric modelling of the initial austenite grain structure [11].
Online since: December 2014
Authors: Xin Wei Zhao, Hui Zhi Hao
These modern carbonate sediments are then compared with their ancient counterparts that are collected from Xichen-1 well in the Yongle Atoll, where a large number of Halimeda segments have been recognized in about 100-m-long late Miocene-middle Miocene whole-coring succession.
In addition, there are developed great numbers of algal-frame holes, including secondary dissolved pores and intercrystalline pores in the medullas and in aragonites between cysts, which have formed particular network systems and pore throats.
The slight differences are that these tubules in medullas of white Halimedas are smaller in number and smoother than those of green ones.
(1) Intergranular dissolved pores are significantly larger than dolomite grains, and sometimes these large pores connect with each other to form even greater pores
(3) Intragranular dissolved pores are formed in segments and algal clasts; evident pores due to dissolution in cysts and filaments or sometimes in segments result from incomplete packing of recrystallized dolomite grains; large numbers of intragranular dissolved pores have been found in all the thin sections
In addition, there are developed great numbers of algal-frame holes, including secondary dissolved pores and intercrystalline pores in the medullas and in aragonites between cysts, which have formed particular network systems and pore throats.
The slight differences are that these tubules in medullas of white Halimedas are smaller in number and smoother than those of green ones.
(1) Intergranular dissolved pores are significantly larger than dolomite grains, and sometimes these large pores connect with each other to form even greater pores
(3) Intragranular dissolved pores are formed in segments and algal clasts; evident pores due to dissolution in cysts and filaments or sometimes in segments result from incomplete packing of recrystallized dolomite grains; large numbers of intragranular dissolved pores have been found in all the thin sections