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Online since: April 2011
Authors: Hao Xie, Jing Wu
Comparison of Influence of Different Greening Structure on Outdoor Temperature in Two Residential Areas
The environmental characteristic of the first residential area is as follows: the geographical layout of six-story residential buildings is in rows with south-north orientation; the space between buildings is about 12 meters; the condition of greening structure is good; in the range of 50m*50m, the number of trees is about 40.
The tiny concave and convex of grains on the rough wall surface can guard against glare. 3.
The tiny concave and convex of grains on the rough wall surface can guard against glare. 3.
Online since: February 2014
Authors: Aleksander Ciski, Tomasz Babul, Paweł Oleszczak
Application of active beds has become possible through the development of powders with the desired properties, particularly suitable composition, grain size, flowability and especially resistance to sintering at high temperatures (temperatures corresponding to thermo-chemical treatment for particular powder).
In this model the number of phases is limited only by computational capabilities and memory capacity of the computer.
In this model the number of phases is limited only by computational capabilities and memory capacity of the computer.
Online since: September 2013
Authors: Xu Jun Chen, Xiao E Zhu, Mu Xiang Dai
A number of standards had been developed for the parameters of recycled aggregate around the world, but these standards are not entirely consistent.
RA’s surface roughness, grain shape, irregular, angular and more attached to the surface more mortar block, which is caused by RA important factor in poor performance.
RA’s surface roughness, grain shape, irregular, angular and more attached to the surface more mortar block, which is caused by RA important factor in poor performance.
Online since: March 2014
Authors: Bao Dong Chen, Feng Guo, Jing Wen
Quite a certain number of studies investigating the deformation behavior of the Mg-Zn-Zr alloy with low zinc have evolved recently.
This is because that the nucleation and growth of dynamically recrystallized grains are provided higher mobility as the deformation temperature increasing, and decreased the strain rate would also end to the acceleration of activation energy accumulation and dislocation annihilation due to the relatively longer time for the deformation to be completed.
This is because that the nucleation and growth of dynamically recrystallized grains are provided higher mobility as the deformation temperature increasing, and decreased the strain rate would also end to the acceleration of activation energy accumulation and dislocation annihilation due to the relatively longer time for the deformation to be completed.
Online since: January 2012
Authors: Zai Sheng Cai, Ya Ping Zhao, Xiao Lan Fu
To achieve the metallization of textile materials, a number of approaches have been developed, such as vacuum deposition, ion plating, electrolytic coating, and electroless plating [1,2].
Compared with Fig. 5(b), the surface of PET/PANI-Ag obtained under 45 oC showed was rougher and its grain size became bigger.
Compared with Fig. 5(b), the surface of PET/PANI-Ag obtained under 45 oC showed was rougher and its grain size became bigger.
Online since: March 2006
Authors: Gerhard Zimmermann, A. Weiß, Laszlo Sturz
In both flight experiments the first development of morphological instabilities was observed at grain
boundaries also existing during planar growth.
In this case a specific number of cells was overgrown and degenerated so that the distance between the remaining cells increased.
In this case a specific number of cells was overgrown and degenerated so that the distance between the remaining cells increased.
Online since: December 2005
Authors: Koji Hagihara, Yukichi Umakoshi, Takayoshi Nakano
Single crystals of Ni3Nb and Ni3Ti and crystals with directionally
oriented large grains of Ni3Sn were grown by the floating zone method under a high-purity Ar gas
flow.
Since there is a large number of hcp based GCP type compounds with c/a>1.60, new compounds showing anomalous strengthening behavior are expected to be developed.
Since there is a large number of hcp based GCP type compounds with c/a>1.60, new compounds showing anomalous strengthening behavior are expected to be developed.
Online since: March 2015
Authors: Guo Qi Liu, Tian Fei Ma, Hong Xia Li, Xin Fu Wang
For refractories that comprise a variety of particles, the size of selected representative volume unit should not be less than the maximum grain.
Where N is inclusions numbers of composites; c0 is volumetric fraction of matrix; cr is volumetric fraction of inclusion; Keff is the effective volumetric modulus of composites; K0 is volumetric modulus of matrix; Kr is volumetric modulus of inclusion; Geff is the effective shear modulus of composites; G0 is shear modulus of matrix; Gr is shear modulus of inclusion; Kp and Gp are computed by Eq. 3 and Eq. 4.
Where N is inclusions numbers of composites; c0 is volumetric fraction of matrix; cr is volumetric fraction of inclusion; Keff is the effective volumetric modulus of composites; K0 is volumetric modulus of matrix; Kr is volumetric modulus of inclusion; Geff is the effective shear modulus of composites; G0 is shear modulus of matrix; Gr is shear modulus of inclusion; Kp and Gp are computed by Eq. 3 and Eq. 4.
Online since: May 2003
Authors: J.P. Lafon, Didier Bernache-Assollant, Eric Champion
Powders surfaces and densities allow to calculate an average grain size of approximatively
60 nm.
The band at 1384 cm-1 corresponds to the nitrate vibration (residue of synthesis process). 28 29 30 31 32 33 34 2 théta scale HAP C/P=1/8 C/P=1/4 C/P=1/2 C/P=1 C/P=2 -2 0 2 4 6 8 0 0,5 1 1,5 2 2,5 400°C 600°C 800°C 1000°C Wt%CO3 C/P molar ratio of initial reagents 1300 1400 1500 1600 1700 200°C air f or 8h 950°C CO2 for 2h 1000°C CO2 f or 2h wawve number (cm-1) Figure 1 Figure 2 Figure 3 Sintering The heat-treatment of carbonated apatites in air (or inert gas) above 600°C leads to the departure of carbonate species as it is shown on figure 3.
The band at 1384 cm-1 corresponds to the nitrate vibration (residue of synthesis process). 28 29 30 31 32 33 34 2 théta scale HAP C/P=1/8 C/P=1/4 C/P=1/2 C/P=1 C/P=2 -2 0 2 4 6 8 0 0,5 1 1,5 2 2,5 400°C 600°C 800°C 1000°C Wt%CO3 C/P molar ratio of initial reagents 1300 1400 1500 1600 1700 200°C air f or 8h 950°C CO2 for 2h 1000°C CO2 f or 2h wawve number (cm-1) Figure 1 Figure 2 Figure 3 Sintering The heat-treatment of carbonated apatites in air (or inert gas) above 600°C leads to the departure of carbonate species as it is shown on figure 3.