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Online since: November 2021
Authors: Tomasz Tański, Zaborowska Marta, Weronika Smok, Wiktor Matysiak
Fig. 1.
Table 1.
Other peaks were noted at 2726 cm−1, 2904 cm−1 and can be associated with 2D and D+G bands, respectively.
References [1] W.
Abdel-Rehim, Polyacrylonitrile / graphene oxide nanofibers for packed sorbent microextraction of drugs and their metabolites from human plasma samples, Talanta. 201 (2019) 474–479
Table 1.
Other peaks were noted at 2726 cm−1, 2904 cm−1 and can be associated with 2D and D+G bands, respectively.
References [1] W.
Abdel-Rehim, Polyacrylonitrile / graphene oxide nanofibers for packed sorbent microextraction of drugs and their metabolites from human plasma samples, Talanta. 201 (2019) 474–479
Online since: October 2018
Authors: G. Kumaran, N. Sandeep, Pallava Lakshminarayana, Bala Anki Reddy
The strength of magnetic field is applied normal to the flow as shown in Fig.1.
Tables 1 exhibited the variations of friction factor and Nusselt number for Carreau fluid.
References [1] S.
Ain Shams Engineering Journal, 5(1) (2014) 293-304
Propulsion and Power Research, 5(1) (2016) 70-80
Tables 1 exhibited the variations of friction factor and Nusselt number for Carreau fluid.
References [1] S.
Ain Shams Engineering Journal, 5(1) (2014) 293-304
Propulsion and Power Research, 5(1) (2016) 70-80
Online since: October 2022
Authors: Shi Qiao Liu, Zi Xuan You, Lin Wang, De Bao Fang, Hai Bo Jin, Jing Bo Li
Introduction
Electromagnetic absorption (EMA) materials have attracted extensive attention for electromagnetic protection and stealth [1-3].
Fig. 1 shows SEM images of spherical carbonyl iron powder and flake carbonyl iron powder under different ball grinding time.
It can be seen from Fig. 1(a) that the SCI particles are approximately spherical, with a diameter of about 1-6 µm.
References [1] J.
Chen, Preparation of rGO/PVA/CIP composites and their microwave absorption properties, Journal of Magnetism and Magnetic Materials. 479 (2019) 337-343
Fig. 1 shows SEM images of spherical carbonyl iron powder and flake carbonyl iron powder under different ball grinding time.
It can be seen from Fig. 1(a) that the SCI particles are approximately spherical, with a diameter of about 1-6 µm.
References [1] J.
Chen, Preparation of rGO/PVA/CIP composites and their microwave absorption properties, Journal of Magnetism and Magnetic Materials. 479 (2019) 337-343
Online since: August 2023
Authors: Olga Skorodumova, Konstantinos Sotiriadis, Andrey Sharshanov, Olena Chebotaryova, Viacheslav Kurepin
It can be concluded that increasing the ratio of DAHP/urea from 2/1 to 4/1 has a negative effect on the flame retardant properties.
Fig.1.
Fig. 2 shows the test results of samples of tapestry fabric treated with flame-retardants in the ratio DAHP/urea = 3/1.
References [1] P.J.
Emen, The use of sol-gel method for obtaining fire-resistant elastic coatings on cotton fabrics, Materials Science Forum, 1038 (2021) 468–479
Fig.1.
Fig. 2 shows the test results of samples of tapestry fabric treated with flame-retardants in the ratio DAHP/urea = 3/1.
References [1] P.J.
Emen, The use of sol-gel method for obtaining fire-resistant elastic coatings on cotton fabrics, Materials Science Forum, 1038 (2021) 468–479
Online since: June 2013
Authors: Matteo Strano, Paolo Albertelli, Elio Chiappini, Stefano Tirelli
The investigated workpiece material is a Ti6Al4V alloy (chemical composition in Table 1).
Machining parameters for turning tests Factors No. of levels Values Cutting tools 3 Inserts “S”, “L”, “LC” Cutting speeds (Vc) 2 40 and 50 [m/min] Feed rates (f) 2 0.2 and 0.3 [mm/rev] Depth of cut (b) 1 1.2 [mm] Cutting fluid 1 Hocut 795/I at a concentration of 5% and a flow rate of 2 [l/min] The ANOVA has been used as the statistical method to determine if each investigated factor significantly affects the measured responses.
Mechanical characterization of material Tensile Strength TS [MPa] 933.67 Elongation at fracture [%] 18.01 Yield Strength YS0.2% [MPa] 866.94 Post-fracture reduction of area [%] 46.22 Fig. °1.
References [1] S.
Mativenga, Wear mechanisms analysis for turning Ti-6Al-4V—towards the development of suitable tool coatings, The International Journal of Advanced Manufacturing Technology 58 (2012) 479-493
Machining parameters for turning tests Factors No. of levels Values Cutting tools 3 Inserts “S”, “L”, “LC” Cutting speeds (Vc) 2 40 and 50 [m/min] Feed rates (f) 2 0.2 and 0.3 [mm/rev] Depth of cut (b) 1 1.2 [mm] Cutting fluid 1 Hocut 795/I at a concentration of 5% and a flow rate of 2 [l/min] The ANOVA has been used as the statistical method to determine if each investigated factor significantly affects the measured responses.
Mechanical characterization of material Tensile Strength TS [MPa] 933.67 Elongation at fracture [%] 18.01 Yield Strength YS0.2% [MPa] 866.94 Post-fracture reduction of area [%] 46.22 Fig. °1.
References [1] S.
Mativenga, Wear mechanisms analysis for turning Ti-6Al-4V—towards the development of suitable tool coatings, The International Journal of Advanced Manufacturing Technology 58 (2012) 479-493
Online since: January 2020
Authors: Osichinaka Chiedu Ubadike, Ekene Gabriel Okafor, Paul Olugbeji Jemitola, Osaretin Kole Uhuegho, Christopher Manshop
[1 9 3 8 2 7 2 6 3 10 1 5 3 4 9 7 3 4 2 1]
Figure 2 Solution Encoding
2.4.3 Initial Population.
8 4 5 2 9 3 10 3 5 3 1 9 7 1 4 2 1] Figure 3 Crossover 2.4.5 Mutation.
[1 9 3 8 2 7 2 6 3 10 1 5 3 4 9 7 3 4 8 1] [0.81 0.01 0.13 0.91 0.63 0.10 0.28 0.55 0.96 0.95 0.16 0.02 0.95 0.49 0.80 0.14 0.42 0.82 0.79 0.03] [1 10 3 8 2 7 2 6 3 10 1 6 3 4 9 7 3 4 8 2] Figure 4 Mutation 2.4.6 Algorithms.
pn=1.
Transportation Research Part B, Vol. 21, No. 6, 1987, pp. 479–487
8 4 5 2 9 3 10 3 5 3 1 9 7 1 4 2 1] Figure 3 Crossover 2.4.5 Mutation.
[1 9 3 8 2 7 2 6 3 10 1 5 3 4 9 7 3 4 8 1] [0.81 0.01 0.13 0.91 0.63 0.10 0.28 0.55 0.96 0.95 0.16 0.02 0.95 0.49 0.80 0.14 0.42 0.82 0.79 0.03] [1 10 3 8 2 7 2 6 3 10 1 6 3 4 9 7 3 4 8 2] Figure 4 Mutation 2.4.6 Algorithms.
pn=1.
Transportation Research Part B, Vol. 21, No. 6, 1987, pp. 479–487
Online since: November 2025
Authors: Olga Skorodumova, Anton Chernukha, Viktoria Kochubei, Vladimir Andronov, Nataliia Lysak
Table 1.
Mass losses of silica gel samples with different contents of orthophosphoric acid T, [°C] H3PO4 content, [%] 1 2 4 8 Lm ΔLm Lm ΔLm Lm ΔLm Lm ΔLm 50 0.5 0 1 0 1 0 1 0 100 4.7 4.2 11 10 11 10 12 11 150 14.5 9.8 41 30 27 16 23 11 200 16.7 2.2 47.5 6.5 31 4 26 3 250 17.9 1.2 50 2.5 33.7 2.7 27.7 1.7 300 18.6 0.7 51 1 35 1.3 29 1.3 350 19 0.4 52 1 35.5 0.5 30 1 400 20.5 1.5 54 2 37 1.5 30.5 0.5 450 25.3 4.8 59 5 38 1 31 0.5 500 25.5 0.2 59.5 0.5 38.7 0.7 31 0 550 25.5 0 59.5 0 38.7 0 31 0 600 25.5 0 59.5 0 38.7 0 31 0 Lm – weight loss, % ΔLm – mass loss increase, % The table shows that the mass loss is greatest under the conditions of adding 2 % orthophosphoric acid regardless of the effect temperature.
The addition of 1–2 % orthophosphoric acid creates a weakly acidic environment with pH 6 in the experimental sols (Table 1).
References [1] D.
Jurecki, Flame resistant Silicone-Containing coating materials, Coatings, 10(5) (2020) 479
Mass losses of silica gel samples with different contents of orthophosphoric acid T, [°C] H3PO4 content, [%] 1 2 4 8 Lm ΔLm Lm ΔLm Lm ΔLm Lm ΔLm 50 0.5 0 1 0 1 0 1 0 100 4.7 4.2 11 10 11 10 12 11 150 14.5 9.8 41 30 27 16 23 11 200 16.7 2.2 47.5 6.5 31 4 26 3 250 17.9 1.2 50 2.5 33.7 2.7 27.7 1.7 300 18.6 0.7 51 1 35 1.3 29 1.3 350 19 0.4 52 1 35.5 0.5 30 1 400 20.5 1.5 54 2 37 1.5 30.5 0.5 450 25.3 4.8 59 5 38 1 31 0.5 500 25.5 0.2 59.5 0.5 38.7 0.7 31 0 550 25.5 0 59.5 0 38.7 0 31 0 600 25.5 0 59.5 0 38.7 0 31 0 Lm – weight loss, % ΔLm – mass loss increase, % The table shows that the mass loss is greatest under the conditions of adding 2 % orthophosphoric acid regardless of the effect temperature.
The addition of 1–2 % orthophosphoric acid creates a weakly acidic environment with pH 6 in the experimental sols (Table 1).
References [1] D.
Jurecki, Flame resistant Silicone-Containing coating materials, Coatings, 10(5) (2020) 479
Online since: February 2014
Authors: Xiao Ning Zhu, Ji Feng Qian, Yong Jun Liu
Constraint (14) and Constraint (15) represents decision variables of 0 or 1.
Berth number berth1 berth2 berth3 Ships Number VB1B VB4B VB7B 0 VB3B VB5B VB8B 0 VB2B VB6B Quay Cranes Number C1B C4 C7 0 B C3 C5B B C8 0 C2 C6 Serve Order 1 2 3 1 2 3 1 2 Figure 1.
Select 10 ship data as the experimental verification in a whole day and night over the planning period in port, it is shown in table 1.
Basic Data of upcoming Vessels Ship Serial Arrive Time Handling quantities(TEU) Prefer Berths Maximum Quay Cranes 1 0:30 950 2 5 2 3:00 1360 1 5 3 4:30 1540 3 6 4 6:30 920 4 6 5 8:30 810 3 6 6 11:30 1420 1 5 7 14:00 1260 2 5 8 17:00 1480 4 6 9 19:10 1060 3 5 10 22:30 1530 1 6 Based on the convergence of the function and the length of solution time, set the relevant parameters of the genetic algorithm through many experiments, population size is 50; the maximum generation is 500; selection probability according to the calculation; crossover probability is 0.9; mutation probability is 0.1.
References [1] Pietro Canonaco, Pasquale Legato, Rina M.
Berth number berth1 berth2 berth3 Ships Number VB1B VB4B VB7B 0 VB3B VB5B VB8B 0 VB2B VB6B Quay Cranes Number C1B C4 C7 0 B C3 C5B B C8 0 C2 C6 Serve Order 1 2 3 1 2 3 1 2 Figure 1.
Select 10 ship data as the experimental verification in a whole day and night over the planning period in port, it is shown in table 1.
Basic Data of upcoming Vessels Ship Serial Arrive Time Handling quantities(TEU) Prefer Berths Maximum Quay Cranes 1 0:30 950 2 5 2 3:00 1360 1 5 3 4:30 1540 3 6 4 6:30 920 4 6 5 8:30 810 3 6 6 11:30 1420 1 5 7 14:00 1260 2 5 8 17:00 1480 4 6 9 19:10 1060 3 5 10 22:30 1530 1 6 Based on the convergence of the function and the length of solution time, set the relevant parameters of the genetic algorithm through many experiments, population size is 50; the maximum generation is 500; selection probability according to the calculation; crossover probability is 0.9; mutation probability is 0.1.
References [1] Pietro Canonaco, Pasquale Legato, Rina M.