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Online since: December 2013
Authors: Hui Zhang, You Yin, Sumio Hosaka, Zulfakri bin Mohamad, Miftakhul Huda, Jing Liu
Fabrication of Carbon Nanodot Arrays with a Pitch of 20 nm for Pattern-Transfer of PDMS Self-Assembled Nanodots
Jing Liua, Miftakhul Hudab, Zulfakri Bin Mohamadc, Hui Zhangd, You Yine, and Sumio Hosakaf
Graduate School of Engineering, Gunma University
1-5-1 Tenjin-cho, Kiryu 376-8515, Japan
achina-liujing@hotmail.com, bt12802274@gunma-u.ac.jp,czulfakri@salam.uitm.edu.my dt10802275@gunma-u.ac.jp, eyinyou@gunma-u.ac.jp, fhosaka@el.gunma-u.ac.jp
Keywords: self-assembly, block-copolymer, carbon dot mask, pattern-transfer, reactive ion etching
Abstract We investigated the fabrication of self-assembled nanodot array using poly(styrene)-poly(dimethyl-siloxane) (PS-PDMS) block copolymer and its transfer technique as a promising method to fabricate magnetic nanodot arrays for ultrahigh density recording.
Ross, et al.: J.
Avgeropoulos, and E.L.
Ross, et al.: J.
Avgeropoulos, and E.L.
Online since: November 2018
Authors: Ikram El Abbassi, Zineb Ibn Majdoub Hassani, Abdel Moumen Darcherif, Abdelouahhab Jabri, Abdellah El Barkany
New Approach to Integrate Planning and Scheduling of Production System: Heuristic Resolution
Zineb Ibn Majdoub Hassani1,2,a*, Abdellah El Barkany1,b,
Abdelouahhab Jabri1,c, Ikram El Abbassi2.d Abdel Moumen Darcherif2,e
1Mechanical Engineering Laboratory.
Hassani et al., "Models for Solving Integrated Planning and Scheduling Problem: Computational Comparison", International Journal of Engineering Research in Africa, Vol. 34, pp. 161-170, 2018 [10] C.
El Barkany, and A.
El Khalfi, “Hybrid Genetic Simulated Annealing Algorithm”.
Hassani et al., "Models for Solving Integrated Planning and Scheduling Problem: Computational Comparison", International Journal of Engineering Research in Africa, Vol. 34, pp. 161-170, 2018 [10] C.
El Barkany, and A.
El Khalfi, “Hybrid Genetic Simulated Annealing Algorithm”.
Online since: February 2016
Authors: Rafał Michalik
Mechanical strength and hardness of the Zn-Al-Cu alloy is higher than for bronzes [1,2].
Aluminium is the primary alloying element in Zn-Al alloys.
Properties of Zn-Al alloy can be improved by modifying their chemical composition of [7,8].
Subject of examinations were Zn – 40 wt. % Al – 3 wt. % Cu and Zn – 22 wt. % Al – 3 wt. % Cu alloys.
Abou El-khair, A.
Aluminium is the primary alloying element in Zn-Al alloys.
Properties of Zn-Al alloy can be improved by modifying their chemical composition of [7,8].
Subject of examinations were Zn – 40 wt. % Al – 3 wt. % Cu and Zn – 22 wt. % Al – 3 wt. % Cu alloys.
Abou El-khair, A.
Online since: October 2011
Authors: S.S. Mohapatra, P. Mahanta
Farid, A.M Khudhair,S.Ali ,Krazack and S Al-Hallaj “A review on phase change energy storage: materials and applications” Journal of Energy Conversion and Management Vol.45, pp 1597-1615, 2004
[10] S.Aboul-Enein, El-Sebaii, Ramadan, H.G. and El-Gohary, “Parametric study of a solar air heater with and without thermal storage” for solar drying.
[11] El-Sebaii, S.Aboul-Enein, Ramadan, M.R.I. and H.G., El-Gohary, “Experimental investigation of an indirect type natural convection solar dryer”.
[10] S.Aboul-Enein, El-Sebaii, Ramadan, H.G. and El-Gohary, “Parametric study of a solar air heater with and without thermal storage” for solar drying.
[11] El-Sebaii, S.Aboul-Enein, Ramadan, M.R.I. and H.G., El-Gohary, “Experimental investigation of an indirect type natural convection solar dryer”.
Online since: June 2020
Authors: Rinat Safiullin, Minnaul Mukhametrakhimov, Svetlana Malysheva, Arthur Safiullin, Rafail Galeyev, Ruslan Khazhaliev, Aleksandr Berestov
Alloy
Al
V
Fe
Ni
Cr
Mo
Zr
O
C
N
impurities
Tpt,0С
each
total
VT6
6,08
4,26
0,23
0,081
0,088
0,142
0,005
0,004
<0,1
0,081
990
VSTk
5,28
4,83
0,8
0,12
0,32
0,078
0,16
0,16
0,009
<0,1
0,048
945
The microstructure of the alloys samples was studied using an Olympus GX51 optical microscope at magnifications of 100-1000 TESKAN scanning electron microscope at magnifications of 25-5000 and a JEOL-2000EX transmission microscope.
Sheet type Tensile axis UTS, MPa YS, MPa El, % Bending angle, degree Industrial sheet 1.0 mm VST2k RD 1096 1038 15,5 105/180 TD 1101 1061 17 105/180 Industrial sheet 1.0 mm fine-grained VT6FG RD 1105,0 1044,0 9,1 55 TD 1116,0 1060,0 10,3 55 Industrial sheet 1.0 mm VT6 RD 1040,7 957,2 12,4 105/180 TD 1020,2 943 12,0 105/180 AMS 4911 L requirements 920 866 8,0 105/105 As can be seen from table 2, the strength properties of alloy sheets are at the same level, and the ductility of the VST2k alloy is higher.
Т, ºС έ, с-1 Flow stress (σ, MPa) (1mm) Flow stress (σ, MPa) (1,5mm) El (δ, %) (1 mm) El (δ, %) (1,5 mm) m (1 mm) m (1,5 mm) Tensile direction 0º 90º 0º 90º 0º 90º 0º 90º 0º 90º 0º 90º 650 4×10-4 145 130 240 233 450 560 310 265 0,31 0,32 0,22 0,23 4×10-3 320 280 433 392 295 360 135 150 0,25 0,26 0,20 0,21 4×10-2 500 475 550 517 85 85 100 75 0,10 0,10 0,11 0,10 700 4×10-4 60 63 127 133 675 650 450 640 0,36 0,35 0,33 0,33 4×10-3 190 200 308 283 525 450 210 260 0,32 0,31 0,25 0,27 4×10-2 390 375 467 417 125 175 100 90 0,21 0,22 0,15 0,16 750 4×10-4 25 30 62 59 650 650 675 725 0,36 0,36 0,36 0,37 4×10-3 100 105 192 195 950 675 415 325 0,42 0,38 0,33 0,32 4×10-2 275 270 350 317 325 250 200 165 0,30 0,28 0,25 0,22 800 4×10-4 10 9,5 38 40 600 600 800 700 0,35 0,35 0,38 0,37 4×10-3 55 55 113 105 950 850 500 685 0,45 0,43 0,35 0,38 4×10-2 180 180 255 247 525 475 170 180 0,33 0,30 0,21 0,22 850 4×10-4 5,8 5,2 - - 800 770 - - 0,9 0,9 - - 4×10-3 27 26 - - 1075 925 - - 0,8 0,9 - -
Т, ºС Strain rate έ, s-1 Tensile direction Flow stress (s, MPa) at strain (e, %) El, % 20 40 60 80 100 750 4´10-4 RD 31 24 20 16 12 800 TD 35 33 29 26 22 645 4´10-3 RD 98 88 79 73 67 600 TD 100 89 82 76 69 365 4´10-2 RD 182 165 150 136 122 185 TD 202 177 158 140 124 125 800 4´10-4 RD 17 14,5 13 12 11 830 TD 15 14,5 15 15 15 620 4´10-3 RD 68 67 66,5 64 60,5 845 TD 70,5 66,5 64 60,5 56 755 4´10-2 RD 144 134 128 119 110 205 TD 148 137 128 118 110 165 850 4´10-4 RD 6,2 6,5 7,0 7,5 7,5 825 TD 6,5 6,5 7,5 8,5 8,0 655 4´10-3 RD 41,2 40,5 39,5 36,5 33,5 620 TD 47 45 45 43 42 580 4´10-2 RD 90 86 82 79 76 230 TD 97 92 88 80 77 200 900 4´10-4 RD 16,5 19,5 20 18 15 450 TD 14 14,8 12,5 11.3 10.2 650 d, % 4´10-3 RD 32 31,5 30 28 26 290 TD 32 31,5 30 28 26 360 4´10-2 RD 59 57 54 49 44 145 TD 62 58,5 56 53 49 150 From the conducted studies it follows that at temperatures of 650-900°C these alloys demonstrate good superplastic properties.
Sheet type Tensile axis UTS, MPa YS, MPa El, % Bending angle, degree Industrial sheet 1.0 mm VST2k RD 1096 1038 15,5 105/180 TD 1101 1061 17 105/180 Industrial sheet 1.0 mm fine-grained VT6FG RD 1105,0 1044,0 9,1 55 TD 1116,0 1060,0 10,3 55 Industrial sheet 1.0 mm VT6 RD 1040,7 957,2 12,4 105/180 TD 1020,2 943 12,0 105/180 AMS 4911 L requirements 920 866 8,0 105/105 As can be seen from table 2, the strength properties of alloy sheets are at the same level, and the ductility of the VST2k alloy is higher.
Т, ºС έ, с-1 Flow stress (σ, MPa) (1mm) Flow stress (σ, MPa) (1,5mm) El (δ, %) (1 mm) El (δ, %) (1,5 mm) m (1 mm) m (1,5 mm) Tensile direction 0º 90º 0º 90º 0º 90º 0º 90º 0º 90º 0º 90º 650 4×10-4 145 130 240 233 450 560 310 265 0,31 0,32 0,22 0,23 4×10-3 320 280 433 392 295 360 135 150 0,25 0,26 0,20 0,21 4×10-2 500 475 550 517 85 85 100 75 0,10 0,10 0,11 0,10 700 4×10-4 60 63 127 133 675 650 450 640 0,36 0,35 0,33 0,33 4×10-3 190 200 308 283 525 450 210 260 0,32 0,31 0,25 0,27 4×10-2 390 375 467 417 125 175 100 90 0,21 0,22 0,15 0,16 750 4×10-4 25 30 62 59 650 650 675 725 0,36 0,36 0,36 0,37 4×10-3 100 105 192 195 950 675 415 325 0,42 0,38 0,33 0,32 4×10-2 275 270 350 317 325 250 200 165 0,30 0,28 0,25 0,22 800 4×10-4 10 9,5 38 40 600 600 800 700 0,35 0,35 0,38 0,37 4×10-3 55 55 113 105 950 850 500 685 0,45 0,43 0,35 0,38 4×10-2 180 180 255 247 525 475 170 180 0,33 0,30 0,21 0,22 850 4×10-4 5,8 5,2 - - 800 770 - - 0,9 0,9 - - 4×10-3 27 26 - - 1075 925 - - 0,8 0,9 - -
Т, ºС Strain rate έ, s-1 Tensile direction Flow stress (s, MPa) at strain (e, %) El, % 20 40 60 80 100 750 4´10-4 RD 31 24 20 16 12 800 TD 35 33 29 26 22 645 4´10-3 RD 98 88 79 73 67 600 TD 100 89 82 76 69 365 4´10-2 RD 182 165 150 136 122 185 TD 202 177 158 140 124 125 800 4´10-4 RD 17 14,5 13 12 11 830 TD 15 14,5 15 15 15 620 4´10-3 RD 68 67 66,5 64 60,5 845 TD 70,5 66,5 64 60,5 56 755 4´10-2 RD 144 134 128 119 110 205 TD 148 137 128 118 110 165 850 4´10-4 RD 6,2 6,5 7,0 7,5 7,5 825 TD 6,5 6,5 7,5 8,5 8,0 655 4´10-3 RD 41,2 40,5 39,5 36,5 33,5 620 TD 47 45 45 43 42 580 4´10-2 RD 90 86 82 79 76 230 TD 97 92 88 80 77 200 900 4´10-4 RD 16,5 19,5 20 18 15 450 TD 14 14,8 12,5 11.3 10.2 650 d, % 4´10-3 RD 32 31,5 30 28 26 290 TD 32 31,5 30 28 26 360 4´10-2 RD 59 57 54 49 44 145 TD 62 58,5 56 53 49 150 From the conducted studies it follows that at temperatures of 650-900°C these alloys demonstrate good superplastic properties.
Online since: February 2013
Authors: Shang Li Shi, Ping Hui Huo, Jian Feng Li, Shu Qing Zhang, Jie Yin, Sha Zhou, Qing Liu, Yang Gao, Wu Wu Wen
Turan et al. [1] reported that Phosphorus content in soil solution ranges from 100 to 400 g ha-1.
Zarei et al.’s [29] results showed that the positive effects of P-solubilizing rhizobial on growth of lentil were confirmed.
P-solubilizing and high IAA producing Rhizobium meliloti strain proved to is the most tolerant strain tested to salt stress in studies of Li et al. [39, 44] which confirms its suitability to alkaline soils as reported by Abolhasani et al.
Velásquez: Solubilization of phosphate by a strain of Rhizobium leguminosarum bv. trifolii isolated from Phaseolus vulgaris in El Chaco Arido soil (Argentina), In: First International Meeting on Microbial Phosphate Solubilization, E.
El-Khatib: Australian Journal of Basic and Applied Sciences, Vol. 4(2010), pp. 1297-1304 [43] S.L Shi, Z.Z.
Zarei et al.’s [29] results showed that the positive effects of P-solubilizing rhizobial on growth of lentil were confirmed.
P-solubilizing and high IAA producing Rhizobium meliloti strain proved to is the most tolerant strain tested to salt stress in studies of Li et al. [39, 44] which confirms its suitability to alkaline soils as reported by Abolhasani et al.
Velásquez: Solubilization of phosphate by a strain of Rhizobium leguminosarum bv. trifolii isolated from Phaseolus vulgaris in El Chaco Arido soil (Argentina), In: First International Meeting on Microbial Phosphate Solubilization, E.
El-Khatib: Australian Journal of Basic and Applied Sciences, Vol. 4(2010), pp. 1297-1304 [43] S.L Shi, Z.Z.
Online since: January 2026
Authors: Imane Es-Smiri, Mohammed Machkor, Faiza Chaouket
El Baroudi, H., Ouazzani, C., Moustaghfir, A., Er-Ramly, A., El Baroudi, Y., Dami, A., & Balouch, “Assessing the Corrosion and Scaling Potential of Drinking Water in Morocco Using Water Stability Indices,” Ecol.
El Machrafi, R.
El Machrafi, R.
Xu et al., “Water quality induced corrosion of stainless steel valves during long-term service in a reverse osmosis system,” J.
EL OUCHY, “Suivi d’indicateurs de pollution des eaux d’irrigation dans la région de Fès, étude d’impact,” Université Sidi Mohammed Ben Abdellah Faculté des Sciences Dhar El Mahraz- Fès, 2018.
El Machrafi, R.
El Machrafi, R.
Xu et al., “Water quality induced corrosion of stainless steel valves during long-term service in a reverse osmosis system,” J.
EL OUCHY, “Suivi d’indicateurs de pollution des eaux d’irrigation dans la région de Fès, étude d’impact,” Université Sidi Mohammed Ben Abdellah Faculté des Sciences Dhar El Mahraz- Fès, 2018.
Online since: August 2022
Authors: Mudasir Mudasir, Karna Wijaya, Budhijanto Budhijanto, Wega Trisunaryanti, Asma Nadia, Remi Ayu Pratika, Ady Mara, Hilda Ismail
The peak around 514 and 416 cm-1 are ascribed to Si-O and Al-O bending stretching.
Pergher, Pillaring of Bentonite Clay with Al and CO, Micropor.
Vicente, Acetilation of Pentaerithritol Catalyzed by an Al-Pillared Saponite, Catal.
Pergher, Pillaring of Bentonite Clay with Al and CO, Micropor.
El-Maadawi, A.
Pergher, Pillaring of Bentonite Clay with Al and CO, Micropor.
Vicente, Acetilation of Pentaerithritol Catalyzed by an Al-Pillared Saponite, Catal.
Pergher, Pillaring of Bentonite Clay with Al and CO, Micropor.
El-Maadawi, A.
Online since: November 2011
Authors: Vijaya Laxmi, Chandrashekhar S. Adiga, S.V. Harish
Zebulum et.al. [15].
El- Sharkawi, "Environmentally Adaptive Sonar Control in a Tactical Setting
El-Sharkawi, Jae-Byung Jung, R.
El-Sharkawi, W.
Gudise [10] Discrete cooperative particle swarm optimization for FPGA placement, Mohammed El-Abd , Hassan Hassan , Mohab Anis, Mohamed S.
El- Sharkawi, "Environmentally Adaptive Sonar Control in a Tactical Setting
El-Sharkawi, Jae-Byung Jung, R.
El-Sharkawi, W.
Gudise [10] Discrete cooperative particle swarm optimization for FPGA placement, Mohammed El-Abd , Hassan Hassan , Mohab Anis, Mohamed S.