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Online since: June 2015
Authors: Anees A. Al-Hamzawi, Nada F. Tawfiq, M.S. Jaffar, Murtadha Sh. Aswood
Al-Hamzawi1, 2, a, M.
Aswood1, 2, d 1 School of Physics, Universiti Sains Malaysia, 11800, Pulau Penang, Malaysia 2 Department of physics, College of Education, Al- Qadisiyah University, Qadisiyah, Iraq 3 Department of physics, College of Science, Al-Nahrin University, Baghdad, Iraq aaneesphys@gmail.com, bmsj@usm.my, cnadafathil@yahoo.com, dmurtadhababylon@gmail.com Keywords: CR-39, VB, SSNTDs, Etching time.
Al-Hamzawi, M.
AL-Hamzawi, M.
El-Rahamany, A study of CR-39 bulk etch properties under various temperatures and concentration conditions to modelize the dissolution rate, Nucl.
Online since: February 2011
Authors: En Lai Zheng, Fang Jia, Zhi Sheng Zhang, Jin Fei Shi
[6] M.Novak, L.El Hifnawy, Vibration of hammer foundations, Soil Dynamics and Earthquake Engineering 2 (1) (1983) 43-53
[7] L.El Hifnawy, M.Novak, Response of hammer foundations to pulse loading, Soil Dynamics and Earthquake Engineering 3 (3) (1984)124-132
Jing et al, Theoretical study of the effects of nonlinear viscous damping on vibration isolation of sdof systems, Journal of Sound and Vibration 323( 2009) 352-365
[12] YANG Ping, Yang Jianming et al., Dynamic Transmissibility of a Complex Nonlinear Coupling Isolator, Tsinghua Science and Technology 11 (2006) 538-542
Liu et al, Springs(Edition 2), Mechanical Industry Press 2008
Online since: April 2015
Authors: Ji Xue Zhou, Jin Wei Wang, Yi Zhang, Shou Qiu Tang, Wei Hong Li, Yuan Sheng Yang
Al-10Sr is most effective to refine microstructure and improve mechanical properties of AS31 alloy.
The 0.2% yield strength (YS), ultimate tensile strength (UTS) and elongation to rupture (El.) were averaged over three specimens.
And 1 wt.% Al-10Sr is most effective to modify the Mg2Si phase.
And 1wt.% Al-10Sr improves the ultimate strength, yield strength and elongation to 126.1MPa, 96.1MPa and 7.5%.
And 1 wt.% Al-10Sr is most effective to refine grains and modify the Mg2Si phase.
Online since: April 2011
Authors: Nadia Saoula, Karim Henda, Rafika Kesri
Effect of the Plasma Deposition Parameters on the Properties of Ti/TiC Multilayers for Hard Coatings Applications SAOULA Nadia1, 2, a, HENDA Karim1,b and KESRI Rafika2,c 1 CDTA, DMIL, Plasma Discharges Group,PO.Box 17 Baba hassen, Algiers, Algeria. 2 USTHB, LECTCM, PO.Box 32 El Alia, BabEzzouar, Algiers, Algeria.
This is in agreement with the theoretical results of Hugosson et al. [12] which showed no significant change in the lattice parameter for TiCx coatings with stoichiometries in the range TiC0.5–TiC1.0 [12].
Similar XRD peak shifts have been noted by Inoue et al. [14] and Fujihana [15] for such strongly substoichiometric TiCx compositions.
[5] A.A.El Mel, E.
Online since: March 2017
Authors: Akihiko Chiba, Mohammed K. Gouda, Mohamed Abdel Hady Gepreel, Koichi Nakamura
Gouda1, a *, Mohamed Abdel-Hady Gepreel1,b, Koichi Nakamura1,2,cand Akihiko Chiba3,d 1Materials Science and Engineering Department, Egypt-Japan University of Science and Technology, Borg El Arab, Alexandria 21934, Egypt. 2Center for the Promotion of Interdisciplinary Education and Research, Kyoto University, Kyoto 615-8540, Japan. 3Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan amohamed.kamal@ejust.edu.eg, bmohamed.gepreel@ejust.edu.eg,ckoichi@cpier.kyoto-u.ac.jp, da.chiba@imr.tohoku.ac.jp, Keywords: β-Titanium alloys, Zirconium-addition, low-cost alloys.
Wu et. al., studied Ti-Mn-Zr ternary system concerning the isothermal sections of the Ti-Mn-Zr ternary system at 1020 and 800 °C[8].
Also, Kazuyuki et al [9] presented Ti-10Zr titanium alloy claiming its good cold workability, high strength and ductility.This motivated us to study the different properties the mechanical properties for the Ti-14Mn-Zr ternary system.
[13] Gouda MK, Gepreel MAH, El Moniem AA.
Online since: October 2009
Authors: Mounir Frija, Raouf Fathallah, T. Hassine
HASSINE * 3,c * Laboratoire de Génie Mécanique, Ecole Nationale d'Ingénieurs de Monastir, Avenue Ibn El Jazzar, 5019 Monastir, Tunisia. 1 Institut Supérieur des Systèmes Industriels - Gabès - Tunisia 2 Ecole Nationale d'Ingénieurs de Sousse, avenue 18 janvier 1952, 4000 Sousse, Tunisia. 3 Ecole Nationale d'Ingénieurs de Monastir, Avenue Ibn El Jazzar, 5019 Monastir, Tunisia a mounir.frija@enim.rnu.tn, b raouf.fathallah@eniso.rnu.tn, ct.hassine@gnet.tn Keywords: LSP process / finite element method / residual stresses / plastic deformation / Johnson Cook law / Damage / Superficial treatment.
Material Modeling (Johnson Cook Model with damage) Table 1 show the chemical composition of Ti-6Al-4V alloy [6]: To model the thermo-visco plastic behaviour of titanium alloy Ti-6Al-4V the J-C constitutive equation was employed [6], which can be represented by the following equation: (1) (a) (b) (c) Fig. 2 (a) The used axi-symetric FE model, (b) FE mesh of the modelled part, (c) Modelled pressure peaks Composition % Al %V %C %Fe %O %N %H %Ti % 6 4 0.03 0.1 0.15 0.01 0.003 Balance Table 1.
Rankin and al "the effects of process variations on residual stress in laser peened 7049 T73 aluminium alloy", Material Science and Engineering A349 (2003) pp. 279-291
Online since: July 2011
Authors: Qing Wen Wang, Ya Ping Han, Ming Hai Luo, Jin Xin Wang, Xue Lian Gao
Hui Pan et al [15] have researched the optical limiting properties of a variety of metal nanowires using 532 nm, 7 ns laser pulse, and they found that optical limiting properties of some metal nanowires are better than the optical limiting properties of carbon nanotubes.
Ryasnyansky, A.L.
El-Sayed: Acc.
El-Sayed: Acc.
Online since: December 2013
Authors: Khairul Habib
Tanaka et al. [5] measured thermo-physical properties of hydrofluoro olefins From the above perspective, the present study deals with the transient analysis of a two-bed activated carbon (AC) – R1234ze(E) adsorption cooling cycle.
The details of the adsorption cooling system have been presented by Chua et el. [2].
El-Sharkawy, A.
Koyama, Performance Investigation of Low GWP Refrigerant Based Adsorption Cooling Cycle, Innovative Materials for Processes in Energy Systems 2010, Editors: Saha et al., doi:10.3850/978-981-7614-2_IMPRES044 (2010) 223-230
Online since: May 2012
Authors: Laurent Ottaviani, Dominique Planson, Frank Torregrosa, Mihai Lazar, Wilfried Vervisch, Olivier Palais, Julian Duchaine, Frédéric Milesi, Stéphane Biondo, M.A. El Khakani, V. Le Borgne
El Khakani4,g, F.
Dark currents are lower with Al-implanted diodes (2 pA/cm2 @ - 5 V).
Al-implanted photodiodes reveal a ratio six times higher than B-implanted diodes.
For a given annealing temperature, B-implanted diodes give rise to a higher signal than Al-implanted diodes.
Fig.6 Spectral responsivities of Al-implanted photodetector (the power source light is shown in the inset) Fig.7 Spectral responsivities of Al- and B- implanted photodetectors Summary 4H-SiC UV photodetectors were realised, based on implanted p+n junctions either by Al standard beam or by B plasma.
Online since: March 2008
Authors: Sabrina Vantadori, Andrea Spagnoli, Andrea Carpinteri
[4] Al.
[5] Al.
[7] Al.
[8] Al.
El Haddad, T.H.
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