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Online since: July 2020
Authors: Riana Herlina Lumingkewas, Shirley Savetlana, Mochamad Chalid, Aniek Sri Handayani, Marcelinus Christwardana
Meanwhile, Ismojo et al. [13] have made MFC using sorghum raw materials.
A.El-Gendy, M.
El-Zawawy, A.
El–Wahab, A.
A.El-Wahab, A.
Online since: September 2013
Authors: Rahadi Wirawan, A. Waris, Gunawan Handayani, Hong Joo Kim, M. Djamal
Tarim et al. (2012) has investigated the response function of NaI(Tl) detector using Monte Carlo simulation [6] and Tavakali-Anbaran et al. has simulated the detector response function based on the effect of detector dimension using MCNP code [7].
El-Khatib et al. (2012) have utilized the effective solid angle for an axial source point method as new analytical approach to calculate the full energy peak of NaI(Tl) gamma ray detector [15].
El-Khatib, A.
El-Khatib, M.
S, El-Khatib, A. and Thabet, A.
Online since: September 2013
Authors: Jakrapong Kaewkhao, Keerati Kirdsiri, Nattapon Srisittipokakun, Smit Insiripong
Y.Ruangtaweep et al., [3] studied on glass fabrication on RHA doped with CoO.
Doweidar et al. [4], studied on glass production from straw and husk ashes.
Kaewkhao et al. [5] studied on glass prepared from the rice husk ash (RHA) with different PbO concentrations by melt-quenching technique.
El-Damrawi, K.
El-Egili, Y.M.
Online since: December 2012
Authors: Harpreet S. Grewal, Harpreet S. Arora, Harpreet Singh, Anupam Agrawal
The occurrence of such high strain rates of the order of ~ 200 s-1 calculated using Eq. 2 given by Chang et al [5] could enhance the dislocation density inside the processing zone.
Some other studies [3-4,6] also indicate 50-60% improvement in hardness for Mg and Al alloys, therefore, it may be concluded that improvement in hardness of the steel is significant and promising.
This kind of response could be attributed to the low stacking fault energy of the steel in comparison to Mg and Al.
El-Danaf, M.
El-Rayes, and M.
Online since: September 2013
Authors: Ji Hua Li, Mao Fang Huang, Kang Yi Zhang, Bing Qing Zhu, Li Jing Lin
., Blake et al,.
Vol.133 (2003), p.1060–1063. ,[] Williams C.M, Francisknapper J.A, Weebb D, et al.
Recent study shows that daily consumption of 10 mL or more of Macadamia integrifoblia oil can reduce the risk of diarrhoeal diseases by 10%, but directly consumable would lead to a poor taste[] Curb J.D, Wergowske G, Dobbs C, et al.
Tween-80, Ethoxylated hydrogenated castor oil (RH-40), Polyoxyethylene castor oil (EL-40) were used as surfactant; anhydrous ethanol, propylene glycol, 1, 3-butanediol as cosurfactant, myristic acid isopropyl ester (IPM), olive oil, liquid paraffin, wheat germ oil and ethyl acetate as oil phase.
Macadamia integrifolia oil O/W nanoemulsions are gained using Tween-80 and EL-40 as surfactant, anhydrous ethanol as cosurfactant, olive oil and wheat germ oil as oil phase.
Online since: June 2010
Authors: Zu Qing Sun, Long Fei Li, Wang Yue Yang, Yun Yang Yin, Xi Tao Wang
Hot-rolled TRIP steels based on DTUA demonstrated better mechanical properties, especially for C-Mn-Al-Si TRIP steel.
Using Thermo-Calc, the A3 temperature is calculated to be 1136 K for the C-Mn-Si steel, and be 1247K for the C-Mn-Al-Si steel.
The Ar3 temperature at 5K/s was 1033K for the C-Mn-Si steel and 1053K for the C-Mn-Al-Si steel, measured by thermal dilatometer.
Fig. 4 Microstructures of C-Mn-Si steel (a) and C-Mn-Al-Si steel (b) deformed at 1073K at 1 s -1 to strain of 0.69 and C-Mn-Al-Si steel (c) held at 1073K for 10min, and quenched by water.
Steel Process % RA [Vol.% ] % M [Vol.% ] YS [MPa] UTS [MPa] YS/UT S EL [%] UTS×EL [Mpa·%] C-Mn -Si Based on STUA 8.8 6.2 480 790 0.61 23 18170 Based on DTUA 8.2 6.4 560 890 0.63 28 24920 C-Mn- Al-Si Based on STUA 4.7 8.3 450 670 0.67 26 17420 Based on DTUA 8.1 7.6 460 780 0.59 34 26520 %RA-volume percent of retained austenite, %M- volume percent of martensite Summary By dynamic transformation of undercooled austenite (DTUA), the kinetics of ferrite formation was fast and the volume fraction of transformed ferrite can be controlled by the applied strain.
Online since: April 2019
Authors: Gökhan Gece, Emre Özdemir
Quantum chemical parameters of the studied NHM-amino acids in neutral form Parameters Phaseb NHM glycine NHM phenylalanine NHM serine NHM glutamic acid Inhibition Efficiency (%)a 88.2 73.1 80.9 68.2 EHOMO (eV) G -6.911 -6.701 -6.921 -6.793 A -6.931 -6.684 -6.941 -6.888 ELUMO (eV) G -0.636 -0.755 -0.695 -0.664 A -0.499 -0.723 -0.628 -0.639 ΔE (EL-EH) (eV) G 6.275 5.946 6.226 6.129 A 6.432 5.961 6.313 6.249 ω G 2.269 2.337 2.329 2.269 A 2.146 2.302 2.269 2.267 χ G 3.774 3.728 3.808 3.729 A 3.715 3.704 3.785 3.764 η G 3.138 2.973 3.113 3.065 A 3.216 2.981 3.157 3.125 S G 0.159 0.168 0.161 0.163 A 0.155 0.168 0.158 0.160 a Ref. [4].
The comparison of inactivation rate constants with energetic parameters of NHM amino acids Compound NHM glycine NHM phenylalanine NHM serine NHM glutamic acid EHOMO (eV) -7.380 -6.781 -7.304 -6.715 ELUMO (eV) -0.340 -0.703 -0.636 -0.984 ΔE (EL-EH) (eV) 7.040 6.078 6.668 5.731 Inactivation rate constant×103 (L mg-1 day)a 4.75 5.17 5.16 5.70 Inactivation rate constant×103 (L mg-1 day)b 2.58 5.60 5.43 4.28 a Data refer to the anaerobic Desulfovibrio desulfuricans in 2 days.
Frisch, et al., Gaussian 09, Rev.
El Ibrahimi, A.
El Issami, Amino acids and their derivatives as corrosion inhibitors for metals and alloys, Arab.
Online since: February 2014
Authors: Heba Elkilani, E. H. Hegazy, Ahmed Kh. Mehanna, Mohamed Y. Omar, Amr A. Hassan
About 20,000 ships pass through the Strait of Bab al-Mandab each year and an estimated 25,000 to 30,000 ships transit the Red Sea annually.
The officially recorded numbers of ship/boat groundings, from 1987 and up till July 2008 in the Egyptian Red Sea Region in the neighborhoods of the most famous major resort cities as dhahab, hurghada, nuweiba, marsa alam, ras sidr, safaga and sharm el-shikh, is 149 incidents [8,13].
[4] El-Raey.
Cornelia, December 2005: Assessment of the status of coral reefs in the El Quadim Bay, El Quseir, Egypt.
[8] Mohamed M Nour El-Din: Proposed CLIMATE CHANGE ADAPTATION STRATEGY for the Ministry of Water Resources & Irrigation EGYPT, Report of Joint Programme for Climate Change Risk Management in Egypt, Mainstreaming of MDGF Projects (January 2013)
Online since: December 2012
Authors: Mary V. Bastawrous, Ayman A. El-Badawy
El-Badawy2,b 11Dept. of Engineering Mechanics, German University in Cairo, Cairo, Egypt 2 Dept. of Mechanical Engineering, Al-Azhar University, Cairo, Egypt and Dept. of Mechatronics Engineering, German University in Cairo, Cairo, Egypt amary.abdel-maseeh@guc.edu.eg, bayman.elbadawy@guc.edu.eg Keywords: Coupled bending-torsional vibrations, assumed modes and rotating blades.
Subrahmanyam et el. solved for coupled vibration frequencies and mode shapes for rotating uniform blades [2].
That was later confirmed by Kaya et al. in [6].
Patil et el. in [7] mentioned that wing stability against flutter is very sensitive to the ratio of bending and torsional stiffnesses.
Online since: March 2024
Authors: Mohamed Abdel Hady Gepreel, Ayman Ali Ahmed Nada, Paul Kamugisha, Mohamed F.M. Fahmy
Fahmy,2,b,Ayman Ali Ahmed Nada,3,c, and Mohamed A.H Gepreel1,d,∗ 1Materials Science and Engineering Department, Egypt-Japan University of Science and Technology, New Borg El-Arab City 21934, Alexandria, Egypt 2Sustainable Architecture Program, Egypt- Japan University of Science and Technology, New Borg El-Arab city 21934, Alexandria, Egypt 3Mechatronics and Robotics Engineering Department, Egypt-Japan University of Science and Technology, New Borg El-Arab city 21934, Alexandria, Egypt aPaul.kamugisha@ejust.edu.eg, bmohamed.fahmy@ejust.edu.eg, cayman.nada@ejust.edu.eg, dMohamed.gepreel@ejust.edu.eg.
In late 2011, huge super-elasticity was discovered in two main polycrystalline Fe-based shape memory alloy systems; the Fe-Mn-Al-Ni and Fe-Ni-Co-Al-Ta-B [2].
The formation of this serrated interface phase at the grain boundaries could be a result of short-range diffusion of Mn and Al across the BCC/FCC boundaries, whereby due to Al being a BCC stabilizer and Mn being FCC stabilizer would result in local segregations.
Similar microstructural behavior was reported by J.M Vallejos et...al 2021 [9].
Malarria, "Phase stability of three fe- mn-al-ni superelastic alloys with different al: Ni ratios," Shape Memory and Superelasticity, vol. 7, no. 3, pp. 362-372, 2021.
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