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Wyszukujesz frazę "Zidan, M.A." wg kryterium: Autor


Wyświetlanie 1-5 z 5
Tytuł:
Wheat seedlings traits as affected by soaking at titanium dioxide nanoparticles
Autorzy:
Shafea, A.A.
Dawood, M.F.
Zidan, M.A.
Powiązania:
https://bibliotekanauki.pl/articles/10003.pdf
Data publikacji:
2017
Wydawca:
Fundacja na Rzecz Młodych Naukowców
Tematy:
wheat
seedling
germination
seed potential
soaking
titanium dioxide
nanoparticle
Opis:
The recent advances in nanotechnology and its use in the field of agriculture are astonishingly increasing; therefore, it is important to understand their role in plant life. Four wheat cultivars soaked in different concentrations of TiO2-NPs (0.0%, 0.025 %, 0.05 %, 0.1 %, 0.2 % and 0.5 %) to select a concentration that stimulate cultivars growth under normal conditions during germination stage. Cultivar dependency appeared markedly in their response to TiO2-NPs. Generally, TiO2-NPs did not modify germination percentage, despite 0.1 % TiO2-NPs vastly enhanced seed potential by increasing vigor index, root dry matter stress tolerance index, shoot dry matter stress tolerance index, dry matter stress tolerance index, plant height stress tolerance index, root length stress tolerance index, fresh matter stress tolerance index and pigment composition. The surrounding concentrations exert little effect on the studied parameters and 0.5 % TiO2-NPs suppressed all indices.
Źródło:
Environment, Earth and Ecology; 2017, 1, 1
2543-9774
2451-4225
Pojawia się w:
Environment, Earth and Ecology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Z-Scan Measurements of the Third-Order Optical Nonlinearity of a $C_{60}$ Doped Poly(dimethylacetylendicarboxylate)
Autorzy:
Zidan, M.
Allahham, A.
Powiązania:
https://bibliotekanauki.pl/articles/1402307.pdf
Data publikacji:
2015-07
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
42.65.Ky
42.70.Nq
42.70.Jk
84.30.Qi
Opis:
The third-order nonlinear optical properties of $C_{60}$/poly(dimethylacetylendicarboxylate) have been studied using Z-scan technique. Experiments are performed using a CW diode laser at 635 nm wavelength and 26 mW power. The nonlinear absorption coefficient β, nonlinear refractive index n₂, Reχ³, and Imχ³ in $C_{60}$ doped poly(dimethylacetylendicarboxylate) are measured using Z-scan data. Our results show that the values of the nonlinear optical parameters (β, n₂, Reχ³, and Imχ³) of $C_{60}$ doped poly(dimethylacetylendicarboxylate) are smaller than the polymer itself.
Źródło:
Acta Physica Polonica A; 2015, 128, 1; 25-28
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Nonlinear optical study of 1,1-methylenedipyridinium bis[tetrachloride gold(III)] hybrid salt
Autorzy:
Zidan, M.
Al-Ktaifani, M.
Allahham, A.
Powiązania:
https://bibliotekanauki.pl/articles/1055075.pdf
Data publikacji:
2017-10
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
1,1'-methylenedipyridinium bis[tetrachloride gold (III)]
organic-metallic complex z-scan technique
Opis:
The third-order nonlinear optical properties of 1,1'-methylenedipyridinium bis[tetrachloride gold(III)] were investigated by the z-scan method using CW diode laser. The experimental results led to estimation of the nonlinear optical absorption coefficient (β), the nonlinear optical refraction (n₂), and third-order nonlinear optical susceptibility (χ³). Our results show that the excited-state absorption cross-sections (σ_{ex}) is larger than the ground-state absorption cross-sections (σ_{g}), this suggests that the nonlinear optical absorption in the MPTC gold(III) is due to the reverse saturable absorption mechanism. Furthermore, the obtained results suggest that our material is considered as a promising candidate for future optical devices applications.
Źródło:
Acta Physica Polonica A; 2017, 132, 4; 1379-1382
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optical nonlinearity investigation of the novel organic-inorganic hybrid salt: 1,1-methylenedipyridinium pentacynidonitrosoferrate(II)pentahydrate using Z-scan system
Autorzy:
Zidan, M.D.
Al-Ktaifani, M.
Allahham, A.
Powiązania:
https://bibliotekanauki.pl/articles/1058555.pdf
Data publikacji:
2016-12
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
42.65.Ky
42.70.Nq
42.70.Jk
84.30.Qi
Opis:
The organic-inorganic hybrid salt: 1,1'-methylenedipyridinium pentacynidonitrosoferrate(II)pentahydrate is synthesized and characterized by multinuclear NMR, IR, and UV-vis spectroscopies and elemental analysis. The third order nonlinear optical properties of the new complex in an aqueous solution have been studied using Z-scan technique. Measurements were performed for input intensities (I₀) of 437 and 241 W/cm² for the two concentrations with a CW diode laser at 635 nm wavelength. The nonlinear optical absorption coefficient (β) and nonlinear refraction (n₂) are found at 1.28×10¯³ cm/W and 10.17×10¯⁹ cm²/W, respectively. The overall results suggested that better nonlinearity was observed at a higher concentration of sample. Our results suggest that this material is considered as a promising candidate for future optical device applications.
Źródło:
Acta Physica Polonica A; 2016, 130, 6; 1326-1331
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optical Limiting Behavior of Acid Blue 29 under a Low Power CW He-Ne Laser Irradiation
Autorzy:
Zidan, M.
Mani, A.
Allaf, A.
Ajji, Z.
Allahham, A.
Powiązania:
https://bibliotekanauki.pl/articles/1808021.pdf
Data publikacji:
2009-05
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
42.65.Ky
42.70.Nq
42.70.jk
84.30.Qi
Opis:
Optical limiting performances of acid blue 29 are investigated under irradiation by a 35 mW continuous wave He-Ne laser. The optical limiting behavior is investigated by using transmission measurement through samples with different concentrations. Our results show that the optical limiting efficiency is concentrations dependence. Induced self-diffraction patterns are observed at relatively high intensities starting from 15 mW.
Źródło:
Acta Physica Polonica A; 2009, 115, 5; 886-889
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-5 z 5

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