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Online since: February 2008
Authors: Ming Xing Ai, Zhen Ying Huang, Zhi Li Zhang, Yang Zhou, Hong Xiang Zhai
Bei, et al.: Ceramics Inter.
Guo,et al.: J.
Zhou, et al.: Key Eng.
Huang, et al.: Key Eng.
El-Raghy, M.W.
Guo,et al.: J.
Zhou, et al.: Key Eng.
Huang, et al.: Key Eng.
El-Raghy, M.W.
Online since: January 2017
Authors: Hong Feng Yin, Hu Die Yuan, Yun Tang, Yang Li Tian, Jin Xue Chen
Lee et al. 11 synthesized Ti3SiC2 by hot-pressing sintering, and studied the thickness of oxide layer of Ti3SiC2 in the oxidation atmosphere of 1173 K-1473 K for 100 h; The high temperature oxidation behavior of the Ti3Si(1-x)Al(x)C2 material was researched by Liu et al. ;12 Zhang et al. 13 reported the oxidation behavior and mechanism of Ti3SiC2/SiC composite oxidized in air atmosphere for 10 h; The effect of the hot-pressing temperature, the content and particle size of SiC on phase composition, density and stress-strain behavior of Ti3SiC2/SiC composites were investigated by Yin et al.; 14 Cai et al. 15 studied the phase composition and room temperature mechanical properties of Ti3SiC2/Al2O3 composite materials.
El-Raghy: 'Synthesis and characterization of a remarkable ceramic: Ti3SiC2', J Am Ceram Soc, 1996 , 79 (7) : 1953-1956
El-Raghy, S.
Ma: 'The high temperature oxidation behavior of the Ti3Si(1-x)Al(x)C2 material', Trans.
El-Raghy, Ogbujil: 'Oxidation of Ti3SiC2 in Air', J Electrochem Soc, South Korea, 1997, 144: 2508-2516
El-Raghy: 'Synthesis and characterization of a remarkable ceramic: Ti3SiC2', J Am Ceram Soc, 1996 , 79 (7) : 1953-1956
El-Raghy, S.
Ma: 'The high temperature oxidation behavior of the Ti3Si(1-x)Al(x)C2 material', Trans.
El-Raghy, Ogbujil: 'Oxidation of Ti3SiC2 in Air', J Electrochem Soc, South Korea, 1997, 144: 2508-2516
Online since: March 2020
Authors: Okan Sirin, Abdullah Al Mamun
Abdullah et al., “A Review on The Exploration of Nanomaterials Application in Pavement Engineering,” J.
El-Shafie, I.
Abd El Rahman, “The addition effects of macro and nano clay on the performance of asphalt binder,” Egypt.
Al-Abdul Wahhab, “Comparative laboratory evaluation of waste cooking oil rejuvenated asphalt concrete mixtures for high contents of reclaimed asphalt pavement,” Int.
Al-Abdul Wahhab, “Evaluation of Waste Engine Oil-Rejuvenated Asphalt Concrete Mixtures with High RAP Content,” Adv.
El-Shafie, I.
Abd El Rahman, “The addition effects of macro and nano clay on the performance of asphalt binder,” Egypt.
Al-Abdul Wahhab, “Comparative laboratory evaluation of waste cooking oil rejuvenated asphalt concrete mixtures for high contents of reclaimed asphalt pavement,” Int.
Al-Abdul Wahhab, “Evaluation of Waste Engine Oil-Rejuvenated Asphalt Concrete Mixtures with High RAP Content,” Adv.
Online since: April 2014
Authors: Xiao Ming Yuan, Shang Jiu Meng, Zhuo Shi Chen
In order to simulate the seismic response of deep-soft soil sites as possible, the calculation selected 2 ground motion: predominant frequency components are based on the 0.2-0.4s El-centro and the 0.3-0.8s Qianan seismic waves.
Fig. 3 Response spectra of inputting El-centro motion Fig.4 Response spectra of inputting Qianan motion As we can see from Figure3&4, in terms of El-centro wave whose frequency component is more complex, input seismic motion period (0.4~1s) obviously larger partly, but acceleration response spectra caused by shear-wave velocity standard deviation is not obvious.
Table 3 PGA and its bias under inputting El-centro ground motion and Qianan ground motion Input amax Vs El-Centro motion Qianan motion amax(g) Bias(%) amax(g) Bias(%) 0.03g Vs(Mean-Sigma) 0.071 1.3% 0.065 6.3% Vs(Mean) 0.071 —— 0.061 —— Vs(Mean+Sigma) 0.069 -2.3% 0.058 -4.5% 0.06g Vs(Mean-Sigma) 0.127 -2.0% 0.128 4.4% Vs(Mean) 0.130 —— 0.123 —— Vs(Mean+Sigma) 0.130 0.4% 0.116 -5.4% 0.15g Vs(Mean-Sigma) 0.249 -4.7% 0.286 -0.3% Vs(Mean) 0.261 —— 0.286 —— Vs(Mean+Sigma) 0.274 5.1% 0.285 -0.5% 0.30g Vs(Mean-Sigma) 0.416 0.6% 0.487 -2.6% Vs(Mean) 0.413 —— 0.500 —— Vs(Mean+Sigma) 0.427 3.3% 0.511 2.1% As table 3 shows, the variation of PGA further verify the variation of the surface response spectra.
Shear wave velocity diversity influence on the seismic response[J], World Earthquake Engineering, 2010, 26(Suppl): 133-137 (In Chinese) [3] Liu H S, Bo J S, Wu Z Y et al.
Fig. 3 Response spectra of inputting El-centro motion Fig.4 Response spectra of inputting Qianan motion As we can see from Figure3&4, in terms of El-centro wave whose frequency component is more complex, input seismic motion period (0.4~1s) obviously larger partly, but acceleration response spectra caused by shear-wave velocity standard deviation is not obvious.
Table 3 PGA and its bias under inputting El-centro ground motion and Qianan ground motion Input amax Vs El-Centro motion Qianan motion amax(g) Bias(%) amax(g) Bias(%) 0.03g Vs(Mean-Sigma) 0.071 1.3% 0.065 6.3% Vs(Mean) 0.071 —— 0.061 —— Vs(Mean+Sigma) 0.069 -2.3% 0.058 -4.5% 0.06g Vs(Mean-Sigma) 0.127 -2.0% 0.128 4.4% Vs(Mean) 0.130 —— 0.123 —— Vs(Mean+Sigma) 0.130 0.4% 0.116 -5.4% 0.15g Vs(Mean-Sigma) 0.249 -4.7% 0.286 -0.3% Vs(Mean) 0.261 —— 0.286 —— Vs(Mean+Sigma) 0.274 5.1% 0.285 -0.5% 0.30g Vs(Mean-Sigma) 0.416 0.6% 0.487 -2.6% Vs(Mean) 0.413 —— 0.500 —— Vs(Mean+Sigma) 0.427 3.3% 0.511 2.1% As table 3 shows, the variation of PGA further verify the variation of the surface response spectra.
Shear wave velocity diversity influence on the seismic response[J], World Earthquake Engineering, 2010, 26(Suppl): 133-137 (In Chinese) [3] Liu H S, Bo J S, Wu Z Y et al.
Online since: November 2013
Authors: Mei Zhang, Yu Xiang Ning, Tao Wang, Zi Wan, Jun Zhang
(a) CP800-B
(b) CP800-S
(c) CP800-T
(d) FB800-2
(e) FB800-1
(f) HR700LA
Fig.5 Typical microstructure of the studied steels
Fig.6 Comparison of mechanical properties of 800MPa grade steels
All of the CP800 steels and FB800 steels show very good TS and EL combination.
HR700LA steels have the largest TS and YS with the smallest EL.
A larger TS and smaller EL combination couples larger springback angles, exhibiting much greater springback behaviour of the steels.
That is to say, larger TS with low EL is harmful to shape stability of the steel.
Oppositely, smaller TS and larger EL combination is helpful to shape stability.
HR700LA steels have the largest TS and YS with the smallest EL.
A larger TS and smaller EL combination couples larger springback angles, exhibiting much greater springback behaviour of the steels.
That is to say, larger TS with low EL is harmful to shape stability of the steel.
Oppositely, smaller TS and larger EL combination is helpful to shape stability.
Online since: September 2021
Authors: Kok Kuan Ying, Suk Fun Chin, Eric Kwabena Droepenu, Boon Siong Wee, Woei Ting
El-Kemary, H.
El-Shamy, I.
El-Mehasseb, Photocatalytic degradation of ciprofloxacin drug in water using ZnO nanoparticles, J.
El-Kemary, E.
EL-Rafei, M.
El-Shamy, I.
El-Mehasseb, Photocatalytic degradation of ciprofloxacin drug in water using ZnO nanoparticles, J.
El-Kemary, E.
EL-Rafei, M.
Online since: January 2015
Authors: Ivan R. Fateev, Artem V. Vukolov, Leonid G. Sukhikh, Sergey R. Uglov
Curve 4 shows the photon transmittance through a 1 μm thick Al foil.
Curves 1a, 2a, 3a and 4a show angular distributions of BTR taking absorption in the Al filter into account and are multiplied by factor of 5.
Curves 1a, 2a, 3a and 4a in Fig. 5 show the angular distributions of the BTR after passing through an Al filter having the thickness of 1 μm.
The dash-dot line shows the energy of the L-edge of the radiation absorption for aluminum (EL=72.6 eV).
After the DTR passes through an Al filter, the radiation yield will be suppressed for quanta having energy Eg> EL.
Curves 1a, 2a, 3a and 4a show angular distributions of BTR taking absorption in the Al filter into account and are multiplied by factor of 5.
Curves 1a, 2a, 3a and 4a in Fig. 5 show the angular distributions of the BTR after passing through an Al filter having the thickness of 1 μm.
The dash-dot line shows the energy of the L-edge of the radiation absorption for aluminum (EL=72.6 eV).
After the DTR passes through an Al filter, the radiation yield will be suppressed for quanta having energy Eg> EL.
Online since: January 2013
Authors: Johny Wahyuadi Soedarsono, Dedi Priadi, Ayende Ayende, Febbyka Rachmanda, S. Sulistijono
While El-Rehim, et.al [25] indicate that inhibitor mechanism started with inhibitor adsorptions followed by blocking several reaction areas without disturbing the equilibrium of anodic and cathodic.
Lim, et. al. (2006).
El-Rahim, M.A.M.
El-Rahim, M.A.M.
Oki, et. al. (2011).
Lim, et. al. (2006).
El-Rahim, M.A.M.
El-Rahim, M.A.M.
Oki, et. al. (2011).
Online since: July 2006
Authors: David J. Lloyd, Todd F. Bischoff, Robert B. Wagstaff
., Spokane,
Washington US
Keywords: DC casting, Al clad products, interfacial strength
Abstract.
The only exception is that with deep draw quality Al-Mn core alloys, special practices are required to ensure that the Al-Si cladding is not re-melted during preheat.
Figure 4: Failure in bending of 4045/5754 2124/1200(0.2mm) STRETCH (%) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 YIELD STRENGTH (MPa) 240 260 280 300 320 340 360 380 YS-Long YS-Trans 2124/1200 (0.2mm) STRETCH (%) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 TENSILE ELONGATION (%) 16 17 18 19 20 21 22 EL-Long EL-Trans Fig.5: Tensile yield strength of Figure 6: Tensile elongation of AA1200/AA2124.
The only exception is that with deep draw quality Al-Mn core alloys, special practices are required to ensure that the Al-Si cladding is not re-melted during preheat.
Figure 4: Failure in bending of 4045/5754 2124/1200(0.2mm) STRETCH (%) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 YIELD STRENGTH (MPa) 240 260 280 300 320 340 360 380 YS-Long YS-Trans 2124/1200 (0.2mm) STRETCH (%) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 TENSILE ELONGATION (%) 16 17 18 19 20 21 22 EL-Long EL-Trans Fig.5: Tensile yield strength of Figure 6: Tensile elongation of AA1200/AA2124.
Online since: February 2013
Authors: Jing Feng Chen, Le Yang Dai, Shao Fen Lin, Wen Chun Wang
The solid state reaction process between elemental W and C powders during ball milling had been studied in detail by El-Eskandarany et al. [9].
Yamada et al. [15] has made a similar study.
El-Eskandarany et al. [20] ball milled the mixture of WO3+C+3Mg for 12 h, they found that most of the WO3 was reduced to W with a small amount of residual WC.
Sherif El-Eskandarany, A.A.
Sherif El-Eskandarany, M.
Yamada et al. [15] has made a similar study.
El-Eskandarany et al. [20] ball milled the mixture of WO3+C+3Mg for 12 h, they found that most of the WO3 was reduced to W with a small amount of residual WC.
Sherif El-Eskandarany, A.A.
Sherif El-Eskandarany, M.