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Online since: August 2011
Authors: Imen Mokrani, Riad Derabla, Mohamed Larbi Benmalek
Two sands of the area of El Ghadir (Skikda) were used for concrete specimens: a sea sand (S1) and a crushed sand (S2).
It has a clear gray color, made at the blast furnaces of El Hajar (Annaba).
Bouikni, and al: Durability Properties of Concrete Containing 50 % and 65 % Slag, Journal of Construction and Building Materials Vol. 23 (2009), p. 2836 [3] E.
Güneyisi and al: A study on Durability Properties of High-Performance Concretes Incorporating High Replacement Levels of Slag, Journal of Materials and Structures Vol. 41 (2008), p. 479 [4] H.M.
EL-Hosiny: Hydration and Pore Structure Characteristic of Superplasticized Hardened Slag Cement Pastes, Journal of Ceramics Vol. 46 (2002), p. 63 [8] G.
Online since: October 2011
Authors: Jie Tian, Zhi Chao Yan, Yang Yang Cao
The nonlinear earthquake responses of the structures are calculated by using program IDARC2D Version 7.0(Reinhorn et al.,2010)[7-8].
The maximum displacement, interstorey drift, story shear, and acceleration responses of the structures subjected to El-Centro, Taft , San Fernando and Kobe waves are shown in Fig.3~Fig.5.
to El-Centro, Taft , San Fernando and Kobe waves with LYP100 and 4mm(a)Displacement(b)Interstorey Drift(%) (c)Story Shear (d) Acceleration (a) (b) (c) (d) Fig. 6 Hysteretic curves of the low yield strength steel panels numbered 121 subjected to waves (a) El-Centro (b) Taft (c) San Fernando (d) Kobe The computing results are analyzed as follows: (1)Fig. 3(a) ~ Fig. 3 (d) show that the maximum displacement and interstorey drift angles decrease while the maximum interstorey shear force and acceleration responses increase along with increasing of the thickness of the built-in low yield strength steel panels.
(2)From Fig. 4(a) ~ Fig. 4 (d) it can also been seen that the maximum displacement, interstorey drift, story shear force and acceleration responses of the RC frame multi-ribbed composite walls structure subjected to El-Centro wave using LYP100 are the smallest, which reflects that the ultra low yield strength steel panels(less than 100MPa) have obvious advantage of seismic performance
References [1] Manoru Ohashi,Haruo Mochizuki,Tanemi Amaguchi,et al.Development of new steel plates for building structural use.
Online since: November 2022
Authors: Asmaa Ashraf Hanafi, Marwa El-Kady, Mohamad Ayad
Hanafi1,a, Marwa El-Kady2,3,b, Mohamad M.
Wang et al., “A robust zirconium amino acid metal-organic framework for proton conduction,” Nature Communications, vol. 9, no. 1, 2018, doi: 10.1038/s41467-018- 07414-4
Sandhu et al., “Green MIP-202(Zr) Catalyst: Degradation and Thermally Robust Biomimetic Sensing of Nerve Agents,” J Am Chem Soc, vol. 143, no. 43, pp. 18261–18271, Nov. 2021, doi: 10.1021/jacs.1c08356
Abd El-moneim, and M.
Ibrahim et al., “Tuning the Chemical Environment within the UiO-66-NH2 Nanocages for Charge-Dependent Contaminant Uptake and Selectivity,” Inorganic Chemistry, 2019, doi: 10.1021/acs.inorgchem.9b01611.
Online since: February 2018
Authors: Somboon Sahasitthiwat, Rukkiat Jitchati, Benjawan Somchob
The compounds were used as a dopant for OLEDs in the structure of ITO/NPB/BS01-BS04/Bphen/LiF/Al.
After that, bilayer cathode (LiF and Al) were evaporated at 0.5 nm and 100 nm for LiF and Al, respectively.
EL spectra and CIE coordination were obtained using a Minolta CS-2000 spectrophotometer.
Transient EL data were collected by Agilent 8114A 100V/2A pulse generator and Tektronix TDS3054B digital oscilloscope.
The electroluminescence (EL) data of BS01-BS04 are shown in Fig. 3 and summarized in Table 1.
Online since: April 2013
Authors: Khairul Habib
Saha et al. [4] have measured adsorption characteristics of R507A on activated carbon.
The isosteric heat of adsorption for AC-R507A and can be expressed by El-Sharkawy et al. [1], (4) Adsorption and desorption energy balance.
El-Sharkawy, A.
El-Sharkawy, S.
El-Sharkawy, K.
Online since: September 2014
Authors: Robert Jankowski, Ayman Seleemah, Saher El-Khoriby, Hytham Elwardany
Chau et al. [10] carried out a shaking table experiment to investigate the pounding phenomena between two steel towers with different natural frequencies and damping ratios, subjected to different combinations of stand-off distance and seismic excitations.
Earthquake excitations used in the experiments Excitation Amplification,% PGA [m/sec2] 1940 El Centro, NS 100% 3.070 1995 Kobe, NS (JMA station) 25 % 8.057 1989 Loma Prieta, NS (Corralitos station) 50% 6.315 1994 Northridge, EW (Santa Monica station) 75% 8.660 1971 San Fernando, N74°E (Pacoima Dam station) 25% 11.375 2002 Polkowice mining tremor 100% 1.634 Table 2.
Acceleration time histories of different towers with zero gap distance when subjected to the El Centro earthquake: (a) configuration (1); and (b) configuration (2). .
Table 3 summarizes the maximum and minimum accelerations of independent vibrations (without pounding) of the three towers under the El Centro earthquake.
Independent maximum and minimum accelerations when subjected to the El Centro earthquake Accelerometer Configuration (1) Configuration (2) Max., m/s2 Min., m/s2 Max., m/s2 Min., m/s2 A1 7.78 -7.39 10.25 -10.37 A2 8.94 -8.86 6.97 -6.92 A3 8.46 -7.89 8.60 -9.67 Final conclusions The results of the study show that pounding observed during damaging earthquakes might significantly affect the behaviour of structures in series.
Online since: July 2017
Authors: Mebrouk Bellaoui, Abdelatif Hassini, Kada Bouchouicha
Tronin et al.
The RST approach proposed by Tramutoli et al. (1998) is described to identify space-time signal.
Corrado et al.
The measurements values in TIZI OUZOU and Dar EL-beida station represented with red and blue curve respectively.
Di Bello et al., “Robust satellite techniques for volcanicand seismic hazards monitoring,” Ann.
Online since: August 2023
Authors: Meryem Hajji Nabih, Maryam Elhajam, Noureddine Idrissi Kandri, Abdelaziz Zerouale, Hamza Boulika
El Hajam1,2,c, N.
Nabih, M. el Hajam, H.
[23] M. el Hajam, N.
El-Shazly, H.S.
[43] M. el Hajam, N.
Online since: August 2020
Authors: Ahmed Hassan El Shazly, Marwa Farouk El-Kady, Sara E. Zayan
El-Shazly1,2,b and M.F.
Elkady1,3,c 1Chemicals and Petrochemicals Engineering Department, Egypt-Japan University of Science and Technology, New Borg El-Arab City, Alexandria, Egypt. 2Chemicals and Petrochemicals Engineering Department, Egypt-Japan University of Science and Technology, New Borg El-Arab City, Alexandria, Egypt. 3Fabrication Technology Department, Advanced Technology and New Materials and Research Institute (ATNMRI), City of Scientific Research and Technological Applications, Alexandria, Egypt.
El-Shazly, and M.
El-Kady, “Assessment of polypyrrole nanoparticles synthesized in presence and absence of surfactant for heavy metals decontamination,” in AIP Conference Proceedings, 2019
Cui et al., “Surface modification of neural recording electrodes with conducting polymer/biomolecule blends,” J.
Online since: September 2003
Authors: Peder Bergman, Fanny Dahlquist, H. Lendenmann, Christer Hallin
of these EL signatures was done by comparison to KOH etched features.
The image further shows that screw dislocations (white dots in Fig. 5b) have here no corresponding EL signature, that edge dislocations can be mapped in EL, and that line shaped EL features correspond to partial dislocation loops propagating in the basal plane and bounding small SF.
Sugawara et. al. “12-19kV 4H-SiC pin Diodes with Low Power Loss”, ISPSD, (2001) [3] H.
Lendenmann, et. al.
Bergman, et.al.
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