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Online since: May 2015
Authors: Sahour Sayed, Mohammed Gamil, Ahmed Abd El Moneim Abd Elmoneim, Ahmed M.R. Fath El-Bab
Fath El-Bab 2,c
and Ahmed Abd El-Moneim Abd elmoneim 1,d
1Materials Science and Engineering Department, Egypt-Japan University of Science and
Technology, New Borg El-Arab, Alexandria 21934, Egypt
2Mechatronics and Robotics Department, Egypt-Japan University of Science and Technology, New Borg El-Arab, Alexandria 21934, Egypt
asahour.mohammed@ejust.edu.eg, bmohamed.gamil@ejust.edu.eg, cahmed.rashad@ejust.edu.eg, dahmed.abdelmoneim@ejust.edu.eg
Keywords: Graphene film synthesis; LASER reduced graphene; Flexible strain sensors; Graphene piezoresistivity; Graphene gauge factor.
Yang and et al.: Science Vol. 324 (2009), p. 1312 [5] Q.
Jia and et al.: Carbon Vol. 45 (2007), p. 1558 [9] H.W.
Kim and et al.: Nature Vol. 457 (2009), p. 706 [11] C.
El-Kady, A.
Yang and et al.: Science Vol. 324 (2009), p. 1312 [5] Q.
Jia and et al.: Carbon Vol. 45 (2007), p. 1558 [9] H.W.
Kim and et al.: Nature Vol. 457 (2009), p. 706 [11] C.
El-Kady, A.
Online since: October 2014
Authors: Wen Guan Zhang, Lian Qin, Sheng Min Zhao
Devices A ITO/PEDOT: PSS (80 nm)/PVK: PBD: (fl-5CF3-py)2Ir(acac) (8 wt %) (80 nm)/TPBi (30 nm)/LiF (1 nm)/Al, B ITO/PEDOT: PSS (80 nm)/PVK: PBD: (fl-5CF3-py)2Ir(acac) (2 wt %): FIrPic (6 wt %) (80 nm) /TPBi (30 nm)/LiF (1 nm)/Al, C ITO/PEDOT: PSS (80 nm)/PVK: PBD: (fl-5CF3-py)2Ir(acac) (0.2 wt %): FIrPic (7.8 wt %) (80 nm)/TPBi (30 nm)/LiF (1 nm)/Al and D ITO/PEDOT: PSS (80 nm)/CBP: (fl-5CF3-py)2Ir(acac) (5 wt %) (80 nm)/mCP: FIrPic (8 wt %) (30 nm)/TPBi (30 nm)/LiF (1 nm)/Al were fabricated.
EL spectra and CIE coordinates were measured by using SpectroScan PR 655 photometer (Photo Research).
EL spectra EL properties.
EL spectra were seen in Fig. 4.
EL spectra of Device A peaked at 588 nm from (fl-5CF3-py)2Ir(acac) emission.
EL spectra and CIE coordinates were measured by using SpectroScan PR 655 photometer (Photo Research).
EL spectra EL properties.
EL spectra were seen in Fig. 4.
EL spectra of Device A peaked at 588 nm from (fl-5CF3-py)2Ir(acac) emission.
Online since: May 2011
Authors: Wei Zhang, Ji Wen Zhang, Yong Ming Tu
The El Centro and Taft seismic waves are used to calculate the dynamic characteristics of the structure in the time domain, of which dynamic responses are proved satisfactory.
Based on the characteristics of CVRSS, The El Centro earthquake wave and the Taft earthquake wave were selected to act on the structures.
They show that the top displacement peak response of CVRSS is reduced to 74% of that of CCSS subject to scaled El Centro excitation, while the number goes to 73% under scaled Taft excitation.
(a) El Centro (b) Taft Fig.4 Time histories of top floor displacement of primary structure Table 1 The top floor displacement peak response of primary structure Earthquake wave The top displacement peak response of CCSS (m) The top displacement peak response of CVRSS (m) El Centro 0.081 0.060 0.74 Taft 0.083 0.061 0.73 Dynamic response analysis of inter-story drift Figure 5 presents the total inter-story drift time histories of top suspended segment of CVRSS and CCSS under El Centro and Taft (PGA = 400gal) earthquakes, respectively.
(in Chinese) [5] Cao Wanlin, Lu Zhicheng, Zhang Jianwei, et al.
Based on the characteristics of CVRSS, The El Centro earthquake wave and the Taft earthquake wave were selected to act on the structures.
They show that the top displacement peak response of CVRSS is reduced to 74% of that of CCSS subject to scaled El Centro excitation, while the number goes to 73% under scaled Taft excitation.
(a) El Centro (b) Taft Fig.4 Time histories of top floor displacement of primary structure Table 1 The top floor displacement peak response of primary structure Earthquake wave The top displacement peak response of CCSS (m) The top displacement peak response of CVRSS (m) El Centro 0.081 0.060 0.74 Taft 0.083 0.061 0.73 Dynamic response analysis of inter-story drift Figure 5 presents the total inter-story drift time histories of top suspended segment of CVRSS and CCSS under El Centro and Taft (PGA = 400gal) earthquakes, respectively.
(in Chinese) [5] Cao Wanlin, Lu Zhicheng, Zhang Jianwei, et al.
Online since: July 2016
Authors: Ahmed Hassan El-Shazly, Marwa F. El Kady, E.M. Abo-Zahhad
El-Shazly1, b and M.
Mohammad Mehrali et al. have reported that thermal conductivity of Graphene is assigned as 3,000 to 5,000 W/m∙K [8-10].
Salah El-Din , Abdullah M.
Al-Enizi , Ramadan M.
El Bahnasawy, "Graphene/ Magnetite Nanocomposite for Potential Environmental Application," International Journal of Electrochemical Science, pp. 529-537, 2015
Mohammad Mehrali et al. have reported that thermal conductivity of Graphene is assigned as 3,000 to 5,000 W/m∙K [8-10].
Salah El-Din , Abdullah M.
Al-Enizi , Ramadan M.
El Bahnasawy, "Graphene/ Magnetite Nanocomposite for Potential Environmental Application," International Journal of Electrochemical Science, pp. 529-537, 2015
Online since: November 2020
Authors: Sergey M. Makarov, Mikhail A. Masharin, Eduard Yu. Danilovskiy, Anvar A. Zakhidov, Dmitry S. Gets, Grigorii A. Verkhogliadov
In addition, LEDs based on perovskite demonstrate efficiencies over 20%, narrow EL line width and high brightness of radiation [3].
Such approach allows to fabricate MAPbI3-based devices with SC efficiency 12,8% and external quantum efficiency of EL 0,04%.
Such LESC demonstrate 1.02% of efficiency as a SC and external quantum efficiency of EL 0.12% in a visible range.
Solvent annealing does not affect the peak of EL wavelength either (Fig. 4b).
Gil-Escrig et al., “Efficient photovoltaic and electroluminescent perovskite devices,” Chem.
Such approach allows to fabricate MAPbI3-based devices with SC efficiency 12,8% and external quantum efficiency of EL 0,04%.
Such LESC demonstrate 1.02% of efficiency as a SC and external quantum efficiency of EL 0.12% in a visible range.
Solvent annealing does not affect the peak of EL wavelength either (Fig. 4b).
Gil-Escrig et al., “Efficient photovoltaic and electroluminescent perovskite devices,” Chem.
Online since: July 2006
Authors: Takashi Oka, Shinji Yoshihara, Keiji Morita
Effect of microstructure on crack of Al-Mg-Si alloy extrusions
during axial compression
Keiji Morita
1, a
, Shinji Yoshihara
2, b
and Takashi Oka3, c
1, 2,3
14-1 Chofu Minato-machi Shimonoseki-city, Japan
a ke-morita@kobelco.jp, b s-yoshihara@kobelco.jp, c t-oka@kobelco.jp
Keywords: Al-Mg-Si alloy, axial compression, crack initiation, stress concentration, grain boundary
Abstract
Effect of microstructure on micro-cracking behavior of Al-Mg-Si alloy extrusions during axial
compressive deformation was studied.
Extrusions of Al-Mg-Si alloys with two different compositions were used for the mechanical tests and microstructure observation.
Experimental Procedure Tabe1 shows two kinds of Al-Mg-Si alloys.
Fig.6 Microstructures of fracture area after tensile test. a) interrupted at El.=9.5% , b) after braked at El.=12% for No.2-PA
▼ ▲ b) a) 4.3 Stress concentration at grain boundary On the stress concentration and fracture condition in the grain boundary of Al-Mg-Si alloy, Evensen et al. had expressed with the equations (1) below [3].
Extrusions of Al-Mg-Si alloys with two different compositions were used for the mechanical tests and microstructure observation.
Experimental Procedure Tabe1 shows two kinds of Al-Mg-Si alloys.
Fig.6 Microstructures of fracture area after tensile test. a) interrupted at El.=9.5% , b) after braked at El.=12% for No.2-PA
▼ ▲ b) a) 4.3 Stress concentration at grain boundary On the stress concentration and fracture condition in the grain boundary of Al-Mg-Si alloy, Evensen et al. had expressed with the equations (1) below [3].
Online since: January 2012
Authors: Shi Ming Shen, Su Min Zhou, Wei Huang
It is an Al and Mg rich silicate having the structural composition: Mg5Si8O20(OH)2(OH2)4·4H2O [1].
MFPs were subjected to activation before EL plating.
Zhao, et al.: Adsorption of Pb (II) on palygorskite from aqueous solution: Effects of pH, ionic strength and temperature, Appl.
Gacsi et al.: The electroless deposition of nickel on SiC particles for aluminum matrix composites, Surf, Coat.
Zhou et al.: Fabrication of Ni-P/ Palygorskite Core-shell Linear Powder via Electroless Deposition, App.
MFPs were subjected to activation before EL plating.
Zhao, et al.: Adsorption of Pb (II) on palygorskite from aqueous solution: Effects of pH, ionic strength and temperature, Appl.
Gacsi et al.: The electroless deposition of nickel on SiC particles for aluminum matrix composites, Surf, Coat.
Zhou et al.: Fabrication of Ni-P/ Palygorskite Core-shell Linear Powder via Electroless Deposition, App.
Online since: April 2010
Authors: Robert E. Stahlbush, Karl D. Hobart, M.G. Ancona, Brett A. Hull, Orest J. Glembocki, Joshua D. Caldwell, Kendrick X. Liu, A.J. Giles
This will in turn
induce a partial recovery of the Vf drift, as was reported by Caldwell et al. [7, 17].
Green EL of C-Core PDs.
However, by using EL spectrallyselective imaging, the spectra of the EL emission from an individual extended defect can be discerned.
Galekas et al, [19] reported a spatiallydiffuse, 510 nm (2.43 eV) emission that dominated the EL spectra and was attributed to a 'presumably boron-related' point defect.
Bockstecite et al. [24] demonstrated that boron interstitials can form stable complexes at carbon sites, creating deep-level acceptor states that are consistent with such EL emission.
Green EL of C-Core PDs.
However, by using EL spectrallyselective imaging, the spectra of the EL emission from an individual extended defect can be discerned.
Galekas et al, [19] reported a spatiallydiffuse, 510 nm (2.43 eV) emission that dominated the EL spectra and was attributed to a 'presumably boron-related' point defect.
Bockstecite et al. [24] demonstrated that boron interstitials can form stable complexes at carbon sites, creating deep-level acceptor states that are consistent with such EL emission.