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Online since: November 2015
Authors: R.E. Rivera Santillan, V.D. Aguilar Perez, F. Patricio Ramirez
In figure 1 it is observed that the main elements slag containing are Al, Mg, Cl, Na, K, O, Si, with traces of F and S.
In figure 2 the XRD analysis shows a rich aluminum and magnesium slag, with metallic aluminun as well as Al, Mg and Cu oxides, in addition containing KCl (Silvita), NaCl (halite), SiO2 (quartz), principally.
Both compositions correspond to a hypoeutectic Al-Si alloy (<12 wt% Si).
“Propuesta de alternativas de gestión de la escoria salina de la industria de aluminio en El Salvador”.
Universidad de El Salvador.
In figure 2 the XRD analysis shows a rich aluminum and magnesium slag, with metallic aluminun as well as Al, Mg and Cu oxides, in addition containing KCl (Silvita), NaCl (halite), SiO2 (quartz), principally.
Both compositions correspond to a hypoeutectic Al-Si alloy (<12 wt% Si).
“Propuesta de alternativas de gestión de la escoria salina de la industria de aluminio en El Salvador”.
Universidad de El Salvador.
Online since: October 2015
Authors: Lelya Khajiyeva, Askhat Kudaibergenov
Analysis of Nonlinear Vibrations of a Cylindrical Shell in a Supersonic Gas Flow
Lelya Khajiyevaa and Askat Kudaibergenovb
Al-Farabi Kazakh National University, 71, al-Farabi ave., 050040 Almaty, Kazakhstan
akhadle@mail.ru, bask7hat@mail.ru
Keywords: drill string, circular cylindrical shell, gas flow, nonlinear vibrations.
Gulyaev et al. [8] studied critical states of cylindrical shells under the influence of longitudinal and centrifugal inertial forces as a result of rotation.
Mikhlin [11], E.L.
Karagiozis et al [14].
[12] E.L.
Gulyaev et al. [8] studied critical states of cylindrical shells under the influence of longitudinal and centrifugal inertial forces as a result of rotation.
Mikhlin [11], E.L.
Karagiozis et al [14].
[12] E.L.
Online since: December 2012
Authors: R. Miedzinski, R. Kleismit, J. Kasperczyk, I. Kityk, M. Matusiewicz, Gregory Kozlowski
Dlugosz University of Czestochowa, Al.
Armii Krajowej 13/15, Czestochowa, Poland 3Czestochowa University of Technology, Faculty of Electrical Engineering, Al.
Armii Krajowej 19, Czestochowa, Poland agregory.kozlowski@wright.edu, br.miedzinski@ajd.czest.pl, crichard.kleismit@wright.edu, dj.kasperczyk@ajd.czest.pl, eikityk@el.pcz.czest.pl, fmm@el.pcz.czest.pl Keywords: indium tin oxide (ITO), silver nanoparticles, laser irradiation, surface morphology, periodical structures Abstract.
Sample Preparation The Ag nanoparticles were prepared by Oyama from Kyoto University according with seed-mediated growth method described elsewhere [6-7] and based on Murphy's et al. method [10-11].
Yeom, Top-emitting organic light-emitting diodes based on semitransparent conducting cathode of Ba/Al/ITO, Surface&Coatings Technology 202 (2008) 5646-5649
Armii Krajowej 13/15, Czestochowa, Poland 3Czestochowa University of Technology, Faculty of Electrical Engineering, Al.
Armii Krajowej 19, Czestochowa, Poland agregory.kozlowski@wright.edu, br.miedzinski@ajd.czest.pl, crichard.kleismit@wright.edu, dj.kasperczyk@ajd.czest.pl, eikityk@el.pcz.czest.pl, fmm@el.pcz.czest.pl Keywords: indium tin oxide (ITO), silver nanoparticles, laser irradiation, surface morphology, periodical structures Abstract.
Sample Preparation The Ag nanoparticles were prepared by Oyama from Kyoto University according with seed-mediated growth method described elsewhere [6-7] and based on Murphy's et al. method [10-11].
Yeom, Top-emitting organic light-emitting diodes based on semitransparent conducting cathode of Ba/Al/ITO, Surface&Coatings Technology 202 (2008) 5646-5649
Online since: April 2014
Authors: Hui Zhong Li, Jun Jiang, Yang Jie Ou, Hui Juan Liao, Xiao Peng Liang
Xu Chen[11] and Mukhopadhyay[12] studied the phases in the cast Al-4.1Cu-1.37Mg-0.2Er alloys and Al–4Cu–0.5Mg alloys, and identified that the major phases as α(Al), θ(Al2Cu) and S(Al2CuMg).
The high purity Al-Cu-Mg ingot was prepared with pure Al, Zn, Mg and Al-Cu, Al-Mn, Al-Zr master alloys by reducing Fe, Si based on Al-Cu-Mg alloy.
Phase Al Cu Mg Mn Fe A 66.62 31.62 1.76 — — B 80.19 7.63 1.67 6.30 4.21 C 75.73 13.07 11.20 — — Fig. 2 Microstructures of as-cast Al-Cu-Mg alloy Fig.3 shows the SEM microstructure and the main elements Al, Cu and Mg distribution of as-cast Al-Cu-Mg alloy.
Fig. 6(a) shows the line scanning analysis of as-cast Al-Cu-Mg alloy.
[6] Mohamed Ibrahim Abd El Aal, Influence of the pre-homogenization treatment on the microstructure evolution and the mechanical properties of Al–Cu alloys processed by ECAP, Materials Science and Engineering A. 528(2011) 6946–6957
The high purity Al-Cu-Mg ingot was prepared with pure Al, Zn, Mg and Al-Cu, Al-Mn, Al-Zr master alloys by reducing Fe, Si based on Al-Cu-Mg alloy.
Phase Al Cu Mg Mn Fe A 66.62 31.62 1.76 — — B 80.19 7.63 1.67 6.30 4.21 C 75.73 13.07 11.20 — — Fig. 2 Microstructures of as-cast Al-Cu-Mg alloy Fig.3 shows the SEM microstructure and the main elements Al, Cu and Mg distribution of as-cast Al-Cu-Mg alloy.
Fig. 6(a) shows the line scanning analysis of as-cast Al-Cu-Mg alloy.
[6] Mohamed Ibrahim Abd El Aal, Influence of the pre-homogenization treatment on the microstructure evolution and the mechanical properties of Al–Cu alloys processed by ECAP, Materials Science and Engineering A. 528(2011) 6946–6957
Online since: July 2011
Authors: Joaquín Barreiro, Ana Isabel Fernández Abia, Susana Martínez-Pellitero
El Espacio Europeo de Educación Superior y su impacto en la docencia (Edited by Aljibe, Málaga 2005).
3.
Cosano: La plataforma de aprendizaje moodle como instrumento para el trabajo social en el contexto del espacio europeo de la educación superior.
http://www.cibersociedad.net/congres2009/es/coms/moodle-como-plataforma-blended-learning-y-su-funcionalidad-en-la-convergencia-al-espacio-europeo-de-educacion-superior/1086/. 8.
Barro: Las TIC en el sistema universitario español, Conference of Rectors of the Spanish Univerties (CRUE) (2009).
Moreno: Experiencia B-Learning: La convergencia de las TICs en el Espacio Europeo de Educación Superior, III Online Congress: Open knowledge.
Cosano: La plataforma de aprendizaje moodle como instrumento para el trabajo social en el contexto del espacio europeo de la educación superior.
http://www.cibersociedad.net/congres2009/es/coms/moodle-como-plataforma-blended-learning-y-su-funcionalidad-en-la-convergencia-al-espacio-europeo-de-educacion-superior/1086/. 8.
Barro: Las TIC en el sistema universitario español, Conference of Rectors of the Spanish Univerties (CRUE) (2009).
Moreno: Experiencia B-Learning: La convergencia de las TICs en el Espacio Europeo de Educación Superior, III Online Congress: Open knowledge.
Online since: January 2013
Authors: Je Sik Park, Jae Jun Park, Kyung Jung Kwon, Han Su Kim, Churl Kyoung Lee
El Abedin et al. reported that the ionic liquid 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide ([BMP]Tf2N) with dissolved SiCl4 as a silicon source was a good candidate as an electrolyte for silicon electrodeposition [5].
Sakaebe et al. [12] concluded that the reduction behaviors in the case of silicon deposition would be dependent on the electrode materials.
This phenomenon is similar to the observation of Egashira et al. [13].
Bechelany et al.: Thin Solid Films 520 (2012), p. 1895
El Abedin, N.
Sakaebe et al. [12] concluded that the reduction behaviors in the case of silicon deposition would be dependent on the electrode materials.
This phenomenon is similar to the observation of Egashira et al. [13].
Bechelany et al.: Thin Solid Films 520 (2012), p. 1895
El Abedin, N.
Online since: July 2017
Authors: Ragab Abdelaziz El-Sehiemy, Chettih Saliha, Bentouati Bachir
El-Sehiemy, Mostafa Abdelkhalik El, Aboul Ella Hassanien.
[3] Hossinie, Mostafa El, Ragab El Sehiemy, and Amira Haikal.
[17] El-Sehiemy, Ragab A., Muhammad B.
El Sehiemy, Ahmed M.
[50] Elsayed WT, El-Saadany EF.
[3] Hossinie, Mostafa El, Ragab El Sehiemy, and Amira Haikal.
[17] El-Sehiemy, Ragab A., Muhammad B.
El Sehiemy, Ahmed M.
[50] Elsayed WT, El-Saadany EF.
Online since: March 2016
Authors: metwally ezzat, Ahmed Hassanin, Mohammed Ghanim, Hassan Nageh, Ahmed Abd El-Moneim
El-Aassar, S.S.
Al-Deyab, Antimicrobial activity of carboxymethyl chitosan/polyethylene oxide nanofibers embedded silver nanoparticles, Carbohydr.
[18] E.A El-hefian, E.
Vu, et al., Silver-N-Carboxymethyl Chitosan Nanocomposites: Synthesis and its Antibacterial Activities, J Bioterr.
El-Moneim, M.
Al-Deyab, Antimicrobial activity of carboxymethyl chitosan/polyethylene oxide nanofibers embedded silver nanoparticles, Carbohydr.
[18] E.A El-hefian, E.
Vu, et al., Silver-N-Carboxymethyl Chitosan Nanocomposites: Synthesis and its Antibacterial Activities, J Bioterr.
El-Moneim, M.
Online since: January 2023
Authors: Bennacer Lyacine, Kernou Nassim, Hamouche Sabiha
Earthquake recordings from Dar-El-Beida of the 2003 Boumerdes earthquake were used as a seismic load.
Castaldo et al. [10] proposed a model based on the seismic reliability of buildings equipped with the friction pendulum system, the isolated structure at the base defined by a two-degree-of-freedom (2DOF) equivalent model.
Tajammolian et al. [14] investigated the seismic vulnerability of isolated buildings with triple concave friction pendulum (TCFP) devices by considering structural and isolator eccentricities.
The recordings of the Boumerdes earthquake of 2003 at the Dar-El-Beida station were used as a seismic load.
Fig. 4 The Dar-El-Beida recording of the 2003 Boumerdes earthquake 2.3 Design and Characteristics of the isolation System.
Castaldo et al. [10] proposed a model based on the seismic reliability of buildings equipped with the friction pendulum system, the isolated structure at the base defined by a two-degree-of-freedom (2DOF) equivalent model.
Tajammolian et al. [14] investigated the seismic vulnerability of isolated buildings with triple concave friction pendulum (TCFP) devices by considering structural and isolator eccentricities.
The recordings of the Boumerdes earthquake of 2003 at the Dar-El-Beida station were used as a seismic load.
Fig. 4 The Dar-El-Beida recording of the 2003 Boumerdes earthquake 2.3 Design and Characteristics of the isolation System.
Online since: June 2008
Authors: Sergey V. Dobatkin, P.D. Odessky, Svetlana V. Shagalina
Low-carbon low-alloy steels after ECAP are characterized by high strength (UTS > 1000
MPa) and plasticity (EL = 10-15%).
KCV, MJ/m2 State UTS, MPa YS, MPa EL, % RA, % +20 о C -40оC Initial State (920 о C, air cooling) 505 340 16 - 0,22 0,13 ECAP (T=20 oС, N=2, φ=90 о) 980 980 5,0 - 0,13 0,06 ECAP + heating 500 оC, 5 h. 785 775 5,3 63,1 0,80 0,69 3.
The strength of the 0.09%C-Mo-V-Nb steel at 600oC is substantially higher than that of the 0.1%C-Mn-V-Ti steel. 0 200 400 600 800 1000 1200 0 100 200 300 400 500 600 700 800 0 20 40 60 80 100 120 140 YS, МРа EL, % Т, оС Summary High pressure torsion of low carbon steels at a temperature below 0.3 Tm to the true strain of 4-6 leads to the formation of nanocrystalline structure with a grain size of <100 nm or a mixture of oriented substructure and nanograins.
SMC structure of low carbon (0.14%C and 0.1% C-B) steels after ECA pressing provides a high strength (UTS=800-1235 MPa and EL=7-11%).
Pippan et al: Metals 1 (2004), p.110(in Russian)
KCV, MJ/m2 State UTS, MPa YS, MPa EL, % RA, % +20 о C -40оC Initial State (920 о C, air cooling) 505 340 16 - 0,22 0,13 ECAP (T=20 oС, N=2, φ=90 о) 980 980 5,0 - 0,13 0,06 ECAP + heating 500 оC, 5 h. 785 775 5,3 63,1 0,80 0,69 3.
The strength of the 0.09%C-Mo-V-Nb steel at 600oC is substantially higher than that of the 0.1%C-Mn-V-Ti steel. 0 200 400 600 800 1000 1200 0 100 200 300 400 500 600 700 800 0 20 40 60 80 100 120 140 YS, МРа EL, % Т, оС Summary High pressure torsion of low carbon steels at a temperature below 0.3 Tm to the true strain of 4-6 leads to the formation of nanocrystalline structure with a grain size of <100 nm or a mixture of oriented substructure and nanograins.
SMC structure of low carbon (0.14%C and 0.1% C-B) steels after ECA pressing provides a high strength (UTS=800-1235 MPa and EL=7-11%).
Pippan et al: Metals 1 (2004), p.110(in Russian)