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Articles by M. Abdus Salam
Total Records ( 2 ) for M. Abdus Salam
  M. Abdus Salam and Suriati Sufian
  Hydrogen sorption mechanism, kinetics and thermodynamics of hydrotalcite derived mixed oxides of Mg0.5 Ni0.25 O1.13 have been studied using the density functional theory. Hydrotalcite based magnesium 0.5 0.25 0.25 1.13 and nickel and aluminum containing mixed oxides showed significant hydrogen sorption kinetics and thermodynamics. Reduced mixed oxides or active metals of Magnesium (Mg) and Nickel (Ni) converted to hydrides of MgH2 and Mg2 NiH4. The study indicated the favorable hydrides formation which is due to the electrostatic interaction and strong hydrogen bonding type interaction between them. The materials itself facilitate to diffuse hydrogen molecules to different layers of the materials and enhances the sorption kinetics. Hydrogen adsorption and desorption energy of MgH2 and Mg2 NiH4 are 60.13, 64.31, 40.22 and 45.72 kJ/mol, respectively. Model predicted values of hydrogen adsorption enthalpy and entropy changes of MgH2 and Mg2 NiH4 are -48.18 Kj/mol, -135j/mol.K, -55.10 Kj/mol and -155 J/mol.K, respectively. The rate constant of adsorption are 6.0×1012 and 1.3×1013 sec–1 for MgH2 and Mg2 NiH4 hose are indicating physical and chemical adsorption of hydrogen.
  M. Mofazzel Hossain , M. Shahjahan , M. Abdus Salam and M.A. Begum
  Twenty varieties and lines of brinjal were screened out to observe their resistance level to brinjal shoot and fruit borer Leucinodes orbonalis Guenee (Pyralidae:Lepidoptera) infestation in the field conditions. The infestation varied significantly among the varieties/ lines. The brinjal shoot and fruit borer infestations for different varieties/lines were found in the following order of intensity: Nayankajal >BL095 >BL085 >BL098 >BL0 114 >Khotkhotia-2 >Borka >Laffa >Islampuri >BL045 >Dhohazari-2 >BLO101 >Dhohazari-1 >Khotkhotia-1 >BL096 > Sada ball > Singnath > Uttara > Baromashi > Jhumki. Varietal resistance of brinjal against brinjal shoot and fruit borer indicated significant variations among different brinjal varieties/line. Plant age had significant effect on the incidence of brinjal shoot and fruit borer. Highest percentage (32.89) of brinjal shoot and fruit borer infestation was observed at 70 DAT and lowest (5.18) was found at 40 DAT. The rate of infestation gradually increased with the increase of plant age and then decreased in 100 DAT. Highest percentage of infestation was observed in 70 DAT, which was significantly different from 40 DAT but identical with 100 DAT.
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