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Online since: July 2011
Authors: Li Zhen Ma
Compared with Huang et al.’s scheme, the signature size is shortened about 25% and the computation quantity is reduced about 36% in the proposed scheme.
Efficiency We give a comparison between the proposed scheme and Huang et al.’s scheme [13].
Mu et al..
El Aimani, On generic constructions of designated confirmer signatures.
El Aimani, Toward a generic construction of convertible undeniable signatures from pairing-based signatures, Cryptology ePrint Archive, Report 2009/362, 2009, http://eprint.iacr.org/
Online since: January 2013
Authors: Ulrich Pont, Kristina Kiesel, Ardeshir Mahdavi
Hausladen et al. [1] performed a detailed analysis on current evaluation tools and methods.
Gratzl-Michlmair et al. [3] surveyed several hundred architects.
Mahdavi and El-Bellahy [5] and Pont et al. [6] investigated architectural competitions for school buildings in Weyer and in St.
El-Bellahy, Effort and effectiveness considerations in computational design evaluation: a case study, Building and Environment 40 (2005) [6] U.
Online since: November 2011
Authors: He Song, Xiang Feng Guo, Li Hua Jia, Xue Ju Zhang
Such as, Al/Ce/Mg[10], Ni/Al[11], CTAB-Al[12], TiO2[13], B-Ti[14], and polyurethane/organo-montmorillonite[15].
Abo-El-Enein, A.
Salah El-Dien: Appl.
Online since: October 2007
Authors: Dan Qing Yi, Sheng Yang, W.X. Li, Su Juan Yao
Ifeanyi Anthony Anyanwu el al concluded that in the peak aged Mg-Gd-Y-Zr alloys, β'' and β' phases coexist and both precipitates contribute to age hardening [7]. 3.3 tensile properties of extruded specimens Figure 4 shows the tensile properties and elongation of the investigated extruded alloys aged at 225°C.
Fig. 2 aging kinetics of the investigated 0 20 40 60 80 100 120 140 160 90 95 100 105 110 115 120 Vickers Hardness (HV 49N) Aging Time, t/h 200℃ 225℃ 250℃ Fig. 3 bright field micrograph of extruded sample aged at 225°C for 24h 0 50 100 150 200 250 300 250 300 350 400 t ensi l e st r ent h, σ , MPa temper at ur e, T/ ℃ 0 4 8 12 16 20 1 El ongat i on, ( %) Fig. 3 Tensile properties and elongations as a function of temperature 4 Conclusions (1) Aging treatment can harden the Mg-9Gd-3Y-0.3Zr extruded alloys markedly at a temperature rang from 200-250°C, but the alloy have greater response to aging at 200-225°C than at 250°C. the aging response almost same as at 200°C and 225°C, but the time to peak-aged at 225°C is shorter than that at 200°C
References [1] Kentaro Yannada, Yoshiyuki Okubo, Masashi Shiono et al.
Vol. 203(2006), p.466 [5] Bohumil smola, Ivana Stulífová, Jitka Pelcová, et al.
Online since: July 2021
Krishnamurthy, The National Institute of Engineering, India Zeki Candan, Istanbul University, Turkey Boumerzoug Zakaria, University of Biskra, Algeria Malachy Sumaila, Nigerian Defence Academy, Nigeria Jarrn-Horng Lin, National University of Taiwan, Taiwan Meng-Ting Tsai, National Taiwan University of Science and Technology, Taiwan Jun Wang, Shandong University of Technology, China Taha Tabaza, Al-Zaytoonah University of Jordan, Jordan Sutharsini Ubenthiran, University of Jaffna, Sri Lanka Se-Jin Choi, Wonkwang University, Korea Kwang-Hee Lim, Daegu University, Korea Thitiphan Chimsook, Maejo University, Thailand Ting Teo Ming, Malaysian Nuclear Agency, Malaysia Hideki Yokoi, Shibaura Institute of Technology, Japan Xiaoyan Song, Beijing University of Technology, China Ren-Kae Shiue, National Taiwan University, Taiwan Ahmed H.
Cigarroa-Mayorga, UPIITA-Instituto Politécnico Nacional, Mexico Takashi Saito, Mahidol University, Thailand Ting-Jen Hsueh, National Kaohsiung University of Science and Technology, Taiwan Khaled Abou-El-Hossein, Nelson Mandela University, South Africa Hogyoung Kim, Seoul National University of Science and Technology, South Korea Zhi Zhao, Beijing University of Technology, China Chantaraporn Phalakornkule, Prince of Songkla University, Thailand Apostolopoulos Charis, University of Patra, Greece Rein Terje Thorstensen, University of Agder, Norway Assed Haddad, Universidade Federal do Rio de Janeiro, Brazil Najib Saliba, University of Balamand, Lebanon Mahdi Kioumarsi, Oslo Metropolitan University, Norway Monowar Hussain, NIT, India M.L.
Vara Prasad, National Institute of Technology Silchar, India Wegdan Wagdy El-Nadoury, Pharos University, Egypt Binod Khadka, Tongji University, China Siti Nazahiyah Rahmat, Universiti Tun Hussein Onn Malaysia, Malaysia Gebrail Bekdas, University of Istanbul, Turkey Sarunya Promkotra, Khon Kaen University, Thailand Farzaneh Hadafi, Islamic Azad University, Iran Attasit Sirivachiraporn, Srinakharinwirot University, Thailand Linda Makovicka Osvladova, University of Zilina, Slovakia Masykur Kimsan, Universitas Halu Oleo, Indonesia Romy Suryaningrat Edwin, Halu Oleo University, Indonesia Luigi Coppola, University of Bergamo, Italy Yanxuan Ma, Qingdao University of Technology, China Trong Phuoc Huynh, Can Tho University, Vietnam Noridah Mohamad, Universiti Tun Hussein Onn Malaysia, Malaysia Shantha Kumari Muniyandi, Tunki Abdul Rahman University College, Malaysia Ali Sarrafi Nik, Islamic Azad University, Iran Francesca Scalisi, Euro-Mediterranean Documentation and Research Center
Online since: August 2017
Authors: Chun Xiang Qian, Huai Cheng Chen, Cheng Yao Liang, Wen Ce Kang
Poulsen, et al.
Rashad, & El-Sabbagh, B.
El Hachem, et al., Durability of concrete exposed to leaching and external sulphate attacks.
El-Hachem, E.
Al-Amoudi.
Online since: August 2011
Authors: Xing Jun Xu, Yun Long Yue, Hai Tao Zhang, Zhao Du
The abundance of chain-(Q2), sheet-(Q3), and framework-like (Q4) tetrahedral units, and the distribution of Al among those units in CaO-Al2O3-SiO2 and MgO-Al2O3-SiO2 glass system, have been investigated by 29Si and 27Al magic-angle spinning nuclear magnetic resonance [3].The coordination structure of Al3+ in CaO−Al2O3−SiO2 aluminosilicate glasses (CAS) was studied using solid-state27Al and 29Si magic-angle-spinning NMR [4].The effect of Ti4+ on the site of Al3+ in the structure of CaO–Al2O3–SiO2–TiO2 system glass was studied.
(iii) Absorption peaks in the region of 800~1200cm-1 are due to antisymmetry telescopic vibration of Si-O-Si and Si-O-Al, respectively [8].
In Comparison with sample 1, the absorption peak becomes sharp at 470~600cm-1 in sample 2.The vibrations of Si-O-Al groups is observed to increase with a shift from704cm-1 to 717cm-1.
CaO and MgO are modifier oxide and enter the glass network by breaking Si–O–Si or Si–O–Al bonds.
El-Damrawi: Condens.
Online since: October 2014
Authors: Ján Kráľ, Ján Kráľ, Jaroslav Melko, Lorant Harsányi, Š. Cosmin-Roszkos, Kamil Madáč, Adrián Rjabušin
Parvizian F. et al. created a material model for the dynamic evolution of the microstructure during hot forward extrusion of the aluminum alloy EN AW-6082.
Campana et al. [9] analyzed in a numerical and experimental method the joining of two pieces of aluminum foam located in a empty steel profile.
El-Razes and colleagues analyzed the effect of weld overlying with the friction stir welding method after multiple passes over the previous weld.
El-Rayes, E.A.
El-Danaf, The influence of multi-pass friction stir processing on the microstructural and mechanical properties of aluminum alloy 6082, Journal of materials processing technology 212 (2012) 1157–1168
Online since: April 2023
Authors: Shaymaa A. Kadhim, Tagreed M. Al-Saadi
B., Salah, B., & El-Muraikhi, M. (2019).
Al-Saadi (2021).
H., & Al‐Saadi, T.
M., Abd El-Kaream, S.
H., Al-Saadi, T.
Online since: January 2011
Authors: Pei Yan Huang, Jun Deng
Masoud et al. [1], Pakakonstantinou et al. [2], Heffernan and Erki [3], Aidoo, et al. [4] indicated that fatigue behaviour of RC beams strengthened with FRP was mainly controlled by the stress level which was applied to the main reinforcements.
El-Tawil et al. [5] developed a model to describe the static and fatigue behaviour of RC beams strengthened with carbon FRP (CFRP) laminates.
Yao et al. [8] investigated the fatigue behaviour of RC beams strengthened with the carbon fibre laminate (CFL), which is a new kind of FRP invented by them, and an S-N curve was developed from the test results.
El-Tawil, C.
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