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Arshad Khan,Dolat Khan,Ilyas Khan,Farhad Ali,Faizan ul Karim,Kottakkaran Sooppy Nisar 한국자기학회 2019 Journal of Magnetics Vol.24 No.2
This paper studies magnetohydrodynamic (MHD) flow of Brinkman type nanofluids with the influence of heat generation, chemical reaction and thermal radiation. The f luid i s taken ov er a v ertical plate flat p assing through a porous medium. Four distinct types of nano particles (Cu, Ag, TiO₂ and Al₂O₃) are taken in a base fluid H₂O. The vertical plate with constant temperature is oscillating in its own plane. The flow is described by the partial deferential equations with suitable initial and boundary conditions. The Laplace transform method is used to obtain the exact solutions for velocity, temperature and concentration. These solutions are interpreted graphically using computational software Mathcad-15 to analyze the influence of embedded parameters such as Brinkman parameter, permeability of porous medium, chemical reaction parameter, nano particle volume fraction, heat generation parameter, magnetic parameter and radiation parameter. Skin-friction, Sherwood number and Nusselt number are calculated mathematically.
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Mansour Taghvaei,Mojtaba Dolat Kordestani 한국생태학회 2012 Journal of Ecology and Environment Vol.35 No.4
The use of growth medium is often recommended milkweed seedlings to grow and develop after emergence, and it is affected by growth medium and local habitat conditions. The effects of growth medium and partial shade on early growth of milkweed under drought stress (Calotropis procera L.) were studied in a field experiment. A split-split plot experimental design with three replications was carried out in the nursery. The main treatment plot was divided into two levels of shade; (no shading and partial shading). Sub treatment plot1 included growth medium at four levels (G1 = clay [suitable for milkweed growth], G2 = clay + sand, G3 = clay + perlite, G4 = clay + perlite + sand) and sub treatment plot2 included drought (irrigation intervals) at six levels (D1 = 2 [control], D2 = 4, D3 = 6, D4 = 8, D5 = 10, and D6 = 12 days per for three month). The results showed that drought stress significantly decreased emergence percentage, shoot length, shoot dry weight (SDW1), root dry weight (RDW), seedling dry weight (SDW2) and vigor index (VI). The use of growth medium increased all seedling characteristics. The G3 (clay + perlite) growth medium showed the highest performance, especially in terms of emergence percentage and seedling dry weight. Partial shade improved shoot length, shoot dry weight, and vigor index. Our results showed that the best treatment for high-vigor milkweed seedlings under drought stress was G3(clay + perlite) growth medium and partial shade.
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Taghvaei, Mansour,Kordestani, Mojtaba Dolat The Ecological Society of Korea 2012 Journal of Ecology and Environment Vol.35 No.4
The use of growth medium is often recommended milkweed seedlings to grow and develop after emergence, and it is affected by growth medium and local habitat conditions. The effects of growth medium and partial shade on early growth of milkweed under drought stress (Calotropis procera L.) were studied in a field experiment. A split-split plot experimental design with three replications was carried out in the nursery. The main treatment plot was divided into two levels of shade; (no shading and partial shading). Sub treatment plot1 included growth medium at four levels (G1 = clay [suitable for milkweed growth], G2 = clay + sand, G3 = clay + perlite, G4 = clay + perlite + sand) and sub treatment plot2 included drought (irrigation intervals) at six levels (D1 = 2 [control], D2 = 4, D3 = 6, D4 = 8, D5 = 10, and D6 = 12 days per for three month). The results showed that drought stress significantly decreased emergence percentage, shoot length, shoot dry weight (SDW1), root dry weight (RDW), seedling dry weight (SDW2) and vigor index (VI). The use of growth medium increased all seedling characteristics. The G3 (clay + perlite) growth medium showed the highest performance, especially in terms of emergence percentage and seedling dry weight. Partial shade improved shoot length, shoot dry weight, and vigor index. Our results showed that the best treatment for high-vigor milkweed seedlings under drought stress was G3 (clay + perlite) growth medium and partial shade.
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ON GRADED 2-ABSORBING COMPACTLY PACKED MODULES
Khaldoun Al-Zoubi,IBRAHIM AL-AYYOUB,MOHAMMED AL-DOLAT 장전수학회 2018 Advanced Studies in Contemporary Mathematics Vol.28 No.3
Let G be a group with identity e. Let R be a G-graded commutative ring and M a graded R-module. In this paper, we intro- duce the concept of graded 2-absorbing compactly packed modules and give a number of its properties.
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