Sort by:
Publication Type:
Open access:
Publication Date:
Periodicals:
Search results
Online since: September 2013
Authors: Yu Jing Bie, Wei Liu, Ding Guo Jiang
Table 1 Layers of water of different climatic zones of Change contrast
Max /Mon
Min
/Mon
Year Change
Annual average
Deviation
West highland climate zone
Surface
13.4/8
0.0/2
13.4
6.8
4.41
EL.3476m
11.8/8
2.2/3
9.6
7.2
3.21
EL.3456m
9.0/10
3.5/4
5.5
5.9
1.80
EL.3436m
7.3/10
3.8/4
3.5
5.1
1.17
Bottom
6.9/11
4.0
2.9
4.8
0.91
Subtropical monsoon climate zone
Surface
28.1/8
11.2/3
16.9
19.6
5.19
EL.3476m
24.1/9
11.2/3
12.9
17.9
3.95
EL.3456m
21.3/10
10.8/4
10.5
15.9
3.52
EL.3436m
20.1/11
10.7/4
9.4
15.2
3.32
Bottom
20.0/11
10.7/4
9.3
14.9
3.29
It shows the contrast of year of change between the layers of the water temperature in the two climatic zones in Table 1, from which we can see , the surface water temperature year was significantly higher than the following layers of water temperature year of change ; Year of change in southwest plateau climate zone layers are less than it in subtropical monsoon climate zone layers , especially at the bottom , the southwest plateau
J Hydrol, 2009,2(5): 5 [2] Wang L, Cai Q, Xu Y, et al.
Aquat Ecol, 2011,45(2): 197-212 [3] Liu L, Liu D, Johnson DM, et al.
Ecological Modelling, 2011,222(14): 2485-2494 [5] Yang ZJ, Liu DF, Ji DB, et al.
J Hydrol, 2009,2(5): 5 [2] Wang L, Cai Q, Xu Y, et al.
Aquat Ecol, 2011,45(2): 197-212 [3] Liu L, Liu D, Johnson DM, et al.
Ecological Modelling, 2011,222(14): 2485-2494 [5] Yang ZJ, Liu DF, Ji DB, et al.
Online since: February 2011
Authors: Lian Jin Tao, Wen Pei Wang, Bo Zhang, Jin Bian
Gao Feng et al, [3] and Z.
Karakostas et al, [4] respectively studied the dynamic responses of the subway running tunnels and unlined tunnels in soil.
Shang et al[8] and Gong et al[9] studied respectively the shaking response of the single-floored and girderless multispan structure and the rectangle frame subway station in dry sand.
Besides, El centro wave was input in the test, for it contains many low frequency components.
In the following, the acceleration time curves, which are attained when the input wave is El centro Wave, are used in analysis.
Karakostas et al, [4] respectively studied the dynamic responses of the subway running tunnels and unlined tunnels in soil.
Shang et al[8] and Gong et al[9] studied respectively the shaking response of the single-floored and girderless multispan structure and the rectangle frame subway station in dry sand.
Besides, El centro wave was input in the test, for it contains many low frequency components.
In the following, the acceleration time curves, which are attained when the input wave is El centro Wave, are used in analysis.
Online since: January 2010
Authors: Emad A. Badawi, M.A. Abdel-Rahman, Alaa Aldeen Ahmed
Positron Annihilation & Micro-Hardness Measurement
of 6063 and 6066 with Compromise with Ingot Al
M.
Abdel-Rahman, Alaa Al-deen and Emad A.
Badawi Faculty of Science, Physics Department, El-Minia University, PO 61519 El-Minia, Egypt emadbadawi@yahoo.com Keywords: Lifetime Technique, Positron Annihilation, Vickers Hardness, Wrought Heat Treatable Alloy Abstract The aim of this work was to study the resistance of this type of alloy to quenching.
A sandwich configuration has been used for Al alloy sample measurements.
Show the variation of mean lifetime and Hv as a function of quenching temperature range (50-500oC) concerning to 6063 Al alloy.
Abdel-Rahman, Alaa Al-deen and Emad A.
Badawi Faculty of Science, Physics Department, El-Minia University, PO 61519 El-Minia, Egypt emadbadawi@yahoo.com Keywords: Lifetime Technique, Positron Annihilation, Vickers Hardness, Wrought Heat Treatable Alloy Abstract The aim of this work was to study the resistance of this type of alloy to quenching.
A sandwich configuration has been used for Al alloy sample measurements.
Show the variation of mean lifetime and Hv as a function of quenching temperature range (50-500oC) concerning to 6063 Al alloy.
Effect of Plastic Deformation on Electrical and Mechanical Properties of some 5xxx Al Wrought Alloys
Online since: September 2012
Authors: M.A. Abdel-Rahman, Emad A. Badawi, N. Z-El-Sayed, Ahmed G. Attallah
[2] Effect of Plastic Deformation on Electrical and Mechanical
Properties of Some 5xxx Al Wrought Alloys
M.
Z-El-Sayed, Ahmed G.
Introduction High-Mg 5xxx series Al–Mg alloys have, due to their higher strength than 3xxx Al alloys, found use in beverage can ends.
Eliminating or lowering surface roughening is a serious concern in the Al industry and particularly in the automotive industry.
The solute drag also increases the work-hardening rate in Al alloys.
Z-El-Sayed, Ahmed G.
Introduction High-Mg 5xxx series Al–Mg alloys have, due to their higher strength than 3xxx Al alloys, found use in beverage can ends.
Eliminating or lowering surface roughening is a serious concern in the Al industry and particularly in the automotive industry.
The solute drag also increases the work-hardening rate in Al alloys.
Online since: June 2010
Authors: Long Fei Li, Zu Qing Sun, Wei Chen, Wang Yue Yang
The addition of Al
is disadvantageous to the formation of microduplex (α+θ) structure, but can result in the further
refinement.
With the addition of Al, the strength of microduplex (α+θ) structure was improved and the ductility was not deteriorated markedly.
The second one is a Al alloyed hypereutectoid steel containing 1.00C, 0.31Mn, 0.27Si, 0.95Al and the balance Fe (wt%), termed as Steel B.
The addition of Al is disadvantageous to the formation of microduplex (α+θ) structure, but can result in the further refinement.
With the addition of Al, the strength of microduplex (α+θ) structure was improved and the ductility was not deteriorated markedly.
With the addition of Al, the strength of microduplex (α+θ) structure was improved and the ductility was not deteriorated markedly.
The second one is a Al alloyed hypereutectoid steel containing 1.00C, 0.31Mn, 0.27Si, 0.95Al and the balance Fe (wt%), termed as Steel B.
The addition of Al is disadvantageous to the formation of microduplex (α+θ) structure, but can result in the further refinement.
With the addition of Al, the strength of microduplex (α+θ) structure was improved and the ductility was not deteriorated markedly.
Online since: August 2019
Authors: D. Kumaran, S.P. Sundar Singh Sivam, A. Rajadurai
Alloy phase diagram of Al-Mg Fig.3.
OES analysis of elements of samples (Mg and Al alone shown) Elements Wt.
Percentage [wt. %] Sample #1 Sample #2 Sample #3 Sample #4 Mg 15.324 20.264 24.175 28.263 Al 82.7146 76.8068 72.8116 67.8961 The wt. % of Mg and Al was highlighted in italics.
El Sayed, Moheb M.
Murray and, Al-Mg Phase diagram, Metals Handbook Alloy Phase Diagrams.
OES analysis of elements of samples (Mg and Al alone shown) Elements Wt.
Percentage [wt. %] Sample #1 Sample #2 Sample #3 Sample #4 Mg 15.324 20.264 24.175 28.263 Al 82.7146 76.8068 72.8116 67.8961 The wt. % of Mg and Al was highlighted in italics.
El Sayed, Moheb M.
Murray and, Al-Mg Phase diagram, Metals Handbook Alloy Phase Diagrams.
Online since: January 2011
Authors: I. Alvarez-Armas, Javier Signorelli, M.G. Moscato, A. El Bartali, M.C. Marinelli
El Bartali2,d,
I.
In contrast to the method used by Bugat et al. [2] in which the K-S relationships were studied for only 41 pairs of grains of different phases, the new method used in this work can be applied to corroborate the K-S relation in a selected area of the specimen gauge length getting quantitative statistical results.
These slip systems were not activated in the decreasing order of µ according to Marinelli et al [1].
El Bartali , J.
In contrast to the method used by Bugat et al. [2] in which the K-S relationships were studied for only 41 pairs of grains of different phases, the new method used in this work can be applied to corroborate the K-S relation in a selected area of the specimen gauge length getting quantitative statistical results.
These slip systems were not activated in the decreasing order of µ according to Marinelli et al [1].
El Bartali , J.
Online since: April 2007
Authors: Yong Huang, Chun Qing Peng, Chang An Wang, Yang Song
In addition, when the content of Cu increases, more layered
Ti3AlC2 grains react with Cu and form irregular shaped grain containing Cu, Ti, Al and C elements.
Moreover, Barsoum [8] has mentioned that the Si atoms between TiC0.67 layers in Ti3SiC2 easily migrate outwards and react with molten Al.
(a) consists of many Cu besides Ti, Al and C.
In addition, when the content of Cu increases, more layered Ti3AlC2 grains react with Cu and form irregular shaped grain containing Cu, Ti, Al and C elements.
El-Raghy: J.
Moreover, Barsoum [8] has mentioned that the Si atoms between TiC0.67 layers in Ti3SiC2 easily migrate outwards and react with molten Al.
(a) consists of many Cu besides Ti, Al and C.
In addition, when the content of Cu increases, more layered Ti3AlC2 grains react with Cu and form irregular shaped grain containing Cu, Ti, Al and C elements.
El-Raghy: J.