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Online since: March 2016
Authors: Erasmo Carrera, Salim Belouettar, Gaetano Giunta
Kapuria et al. [4] presented a higher-order zig-zag theory for thermal stress analysis of laminated
simply supported beams.
Mahi et al. [11] studied the free vibration of pre-stressed FGM beams.
These models are derived via a Unified Formulation (UF) that has been previously proposed for plates and shells, see Carrera [13], and, then, extended to the analysis of beam structures, see Carrera et al. [14], Giunta et al. [15, 16, 17], Catapano et al. [18] and Koutsawa et al. [19].
Very comprehensive and thorough reviews addressing also computer implementation related can be found in Liu and Gu [26] and Nguyen et al. [27].
The material elastic and thermal properties are: EL = 172.72 GPa, ET = 6.91 GPa, GLT = 3.45 GPa, GTT = 1.38 GPa, νLT = νTT = 0.25, KL = 36.42 W/mK, KT = 0.96 W/mK, αL = 0.57 · 10−6K−1 and αT = 35.60 · 10−6K−1.
Mahi et al. [11] studied the free vibration of pre-stressed FGM beams.
These models are derived via a Unified Formulation (UF) that has been previously proposed for plates and shells, see Carrera [13], and, then, extended to the analysis of beam structures, see Carrera et al. [14], Giunta et al. [15, 16, 17], Catapano et al. [18] and Koutsawa et al. [19].
Very comprehensive and thorough reviews addressing also computer implementation related can be found in Liu and Gu [26] and Nguyen et al. [27].
The material elastic and thermal properties are: EL = 172.72 GPa, ET = 6.91 GPa, GLT = 3.45 GPa, GTT = 1.38 GPa, νLT = νTT = 0.25, KL = 36.42 W/mK, KT = 0.96 W/mK, αL = 0.57 · 10−6K−1 and αT = 35.60 · 10−6K−1.
Online since: December 2020
Authors: Haia Aldosari
The FTIR spectrum of graphene it has been shown in Rattna & et al [24].
By using solid state nuclear magnetic resonance (NMR) spectroscopy to probe the samples, Lerf et al.(1998) [37] were able to suggest a nonstoichiometric form, containing hydroxyl and epoxy functional groups and some carbonyl groups (carboxyl, carbonyl, ester) along the graphite oxide sheet edge.
Punckt et al. (2013) [39] reported the smallest ratio of (C/O) to obtain electrical conductivity again is 7.3±0.1, and lower that the GO is still an insulator [40].
Chafik El Idrissi, S.
By using solid state nuclear magnetic resonance (NMR) spectroscopy to probe the samples, Lerf et al.(1998) [37] were able to suggest a nonstoichiometric form, containing hydroxyl and epoxy functional groups and some carbonyl groups (carboxyl, carbonyl, ester) along the graphite oxide sheet edge.
Punckt et al. (2013) [39] reported the smallest ratio of (C/O) to obtain electrical conductivity again is 7.3±0.1, and lower that the GO is still an insulator [40].
Chafik El Idrissi, S.
Online since: March 2008
Authors: Anton J. Bauer, Martin Lemberger, Tobias Erlbacher, Wenke Weinreich
In order to minimize crystallization and to reduce interfacial SiO2
formation, the thermal stability of the high-k oxides can be increased by adding Si, Al, or N to the
dielectric [36,39,40,41,42].
On top of all of these gate stacks, a metal gate consisting of 10 nm TaN and 300 nm Al was deposited by RF sputtering.
Even though, the monoclinic phase is the most stable, the tetragonal phase can be tuned by temperature, film thickness, or doping (e.g., promising elements are Si, Al, etc).
El-Kareh: IEEE Electr.
On top of all of these gate stacks, a metal gate consisting of 10 nm TaN and 300 nm Al was deposited by RF sputtering.
Even though, the monoclinic phase is the most stable, the tetragonal phase can be tuned by temperature, film thickness, or doping (e.g., promising elements are Si, Al, etc).
El-Kareh: IEEE Electr.
Online since: November 2022
Authors: Wissem Taktak, Amara Loulizi
Selection of a Pavement Structure From Technically Established Alternatives Based on Construction Cost, Energy Consumption, and Carbon Footprint
Wissem TAKTAK1,a*, Amara LOULIZI2,b
1,2Laboratory of Materials, Optimization, and Environment for Sustainability, National Engineering School of Tunis, Tunis El Manar University, Tunis 1002, Tunisia
awissem.taktak@enit.utm.tn, bamlouliz@vt.edu
Keywords: Pavements, Embodied Energy, Carbon Footprint, Life Cycle, Present Worth.
Harvey et al. [17] present in their report a framework for carrying out a specific LCA for pavement systems following ISO 14044 standard [18].
Blomberg et al., « Partial life cycle inventory or “eco-profile” for paving grade bitumen », European Bitumen Association (In.), Brussels, Belgium.
[16] ISO 14040, Environmental Management – Life-Cycle Assessment - Principles and Framework (ISO 2006a) [17] Harvey, J., Meijer, J., Ozer, H., Al-Qadi, I.
Harvey et al. [17] present in their report a framework for carrying out a specific LCA for pavement systems following ISO 14044 standard [18].
Blomberg et al., « Partial life cycle inventory or “eco-profile” for paving grade bitumen », European Bitumen Association (In.), Brussels, Belgium.
[16] ISO 14040, Environmental Management – Life-Cycle Assessment - Principles and Framework (ISO 2006a) [17] Harvey, J., Meijer, J., Ozer, H., Al-Qadi, I.
Online since: September 2022
Authors: Mohd Rafie Johan, Nadiah Ghazali, Fariza Abdul Rahman, Wan Jefrey Basirun, Magaji Ladan
Al-Sabagh, Polyaniline nanotubes: Facile synthesis, electrochemical, quantum chemical characteristics and corrosion inhibition efficiency, J.
El-Hefnawy, S.
El-Hefnawy, S.
Online since: July 2014
Authors: S.K. Tripathi, Ramneek Kaur, Jagdish Kaur
El-Hagary, M.E.
Al-Rashidie, S.
Susha, A.L.
Al-Kabbi, G.S.S.
Susha, A.L.
Al-Rashidie, S.
Susha, A.L.
Al-Kabbi, G.S.S.
Susha, A.L.
Online since: October 2011
Authors: Shuang Ying Jiang, Bin Gao, Bin Dong
The thermodynamic nature of an adsorption process could be obtained from the change in equilibrium constants K with respect to temperature, and according to Van’t Hoff equation:
(16)
(17)
Atia et. al. [8] used the binding constant KL to substitute the equilibrium constants K in deducing thermodynamic parameters.
[3] El-Shahat, M.F.; Moawed, E.A.; Burham, N.
[3] El-Shahat, M.F.; Moawed, E.A.; Burham, N.
Online since: March 2024
Authors: Alena Sicakova, Marek Kovac
El-Hassan, P.
Tunio et al, Effect of Coarse Aggregate Gradation and Water-Cement Ratio on Unit Weight and Compressive Strength of No-fines Concrete, Engineering, Technology & Applied Science Research 9 (1) (2019) 3786-3789
Tunio et al, Effect of Coarse Aggregate Gradation and Water-Cement Ratio on Unit Weight and Compressive Strength of No-fines Concrete, Engineering, Technology & Applied Science Research 9 (1) (2019) 3786-3789
Online since: December 2024
Authors: Apriansyah Apriansyah, Muhammad Akbar Caronge, Amry Dasar, Dahlia Patah, Faisal Mahmuddin
Kodur et al. (2014 discovered a similar result, stating that due to water loss, the density or mass of concrete reduces with increasing temperature [27].
El-Attar and A.
El-Attar and A.