Theoretical spectroscopic studies of potential energy curves and Fortran parabola for beryllium oxide molecule

Marwa Waleed Mahmod

doi:10.30723/ijp.v11i22.357

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Publication Date

Wed Feb 20 2019

Journal Name

Iraqi Journal Of Physics

Volume

11

Issue Number

22

DOI

10.30723/ijp.v11i22.357

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Theoretical spectroscopic studies of potential energy curves and Fortran parabola for beryllium oxide molecule

Electronic transition

potential energy curve

Fortrat parabola.

Marwa Waleed Mahmod

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Theoretical spectroscopic studies of beryllium oxide has been carried out, potential energy curves for ground states X¹Σ⁺ and exited states A¹Π , B¹Σ⁺ by using two functions Morse and and Varshni compared with experimental results. The potentials of this molecule are agreement with experimental results. The Fortrat Parabola corrcponding to and branches were determind in the range 1<J<20 for the (0-0) band. It was found that for electronic transition A¹Π- X¹Σ⁺ the bands head lies in branche of Fortrat parabola and the bands degraded towards red region. For electronic transition B¹Σ⁺ - A¹Π Fortart parabola appeared the bands head lies in branche and the bands degraded toward violet region.

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Publication Date

Tue Dec 31 2024

Journal Name

مـجـلــة الـدراســات التربــويــة والعـلـمـيــة - كلـيــة الـتــربـيــة - الجــامـعـة العـراقـيــة ال

Synthesis, Characterization and Studies on Thermal, Antioxidant, Docking and Biological of New Ligands with Some Metal Complexes

enass

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Publication Date

Sat Jul 01 2023

Journal Name

Aip Conf. Proc. 2290

Synthesis, characterization and antimicrobial studies of mixed ligand from phthalic acid and 1,10-phenanthroline with their complexes

Taghreed

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In the present work, the phthalic acid (phthH2) and 1.10 phenonthroline (phen), and their complexes were synthesized and isolated as [M(phth)(phen)2], Mn(II), Fe(II), Co(II), Ni(II) Cu(II), Zn(II), and Cd(II) ions. These complexes were characterized by elemental analysis, melting point, conductivity, percentage metal, UV–Vis, FT-IR, and magnetic moment measurements. The molar conductance indicates that all the metal complexes in DMSO are nonelectrolytic. phthalic acid (phtha), and 1,10-Phenanthroline (phen), behaved as bidentate, coordinating to the metal ion through their two oxygen and two pyridinyl nitrogen atoms respectively, as corroborated by. Electronic spectra, FTIR, spectroscopy amusement indicated that all the metal complexes ad

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Publication Date

Fri Nov 30 2018

Journal Name

Oriental Journal Of Chemistry

Viscosity and Density Studies of Drugs in Aqueous Solution and in Aqueous Threonine Solution at 298.15 K

L-Threonine

Atenolol

Propranolol hydrochloride

Viscosity

Density.

zainab

Hanaa G.

Kawther Ahmed Sadiq

Maida Hameed

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Viscosities (η) and densities (ρ) of atenolol and propranolol hydrochloride in water and in concentrations (0.05 M) and (0.1 M) aqueous solution of threonine have been used to reform different important thermodynamic parameters like apparent molal volumes fv partial molal volumes at infinite dilution fvo , transfer volume fvo (tr), the slop Sv , Gibbs free energy of activation for viscous flow of solution ΔG*1,2 and the B-coefficient have been calculated using Jones-Dole equation. These thermodynamic parameters have been predicted in terms of solute-solute and solute-solvent interaction.

Publication Date

Mon Feb 25 2019

Journal Name

Oriental Journal Of Chemistry

Viscosity and Density Studies of Drugs in Aqueous Solution and in Aqueous Threonine Solution at 298.15 K

Hanaa G.

Zainab A. H.

Kawther Ahmed

Maida Hameed

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(5)

Publication Date

Mon Jun 19 2023

Journal Name

Journal Of Engineering

Experimental Studies and Finite Element Modeling of Piles and Pile Groups in Dry Sand under Harmonic Excitation

Dynamic analysis

finite element method

pile foundations.

Saad Faik Abbas

Mahmoud Rasheed

Ahmed Sameer

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Foundations supporting reciprocating engines, radar towers, turbines, large electric motors, and generators, etc. are subject to vibrations caused by unbalanced machine forces as well as the static weight of the machine. If these vibrations are excessive, they may damage the machine or cause it not to function properly. In the case of block foundation, if changes in size and mass of the foundation do not lead to a satisfactory design, a pile foundation may be used. In this study, the dynamic response of piles and pile Groups in dry sand is investigated experimentally. The analysis involves the displacement response under harmonic excitation. In addition, a numerical modeling by using finite element method with a three-dimensional formula

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(5)

Publication Date

Thu Sep 15 1988

Journal Name

Physical Review B

Effect of doping percentages on the conductivity and energy gap of<i>a</i>-Si thin films

M. N.

M. F. A.

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(1)

(3)

Publication Date

Mon Oct 01 2018

Journal Name

Iraqi Journal Of Science

Theoretical Study of The Electromagnetic Structure of Boron Isotopes Using Local Scale Transformation Technique

Saja H.

Arkan R.

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(9)

(1)

Publication Date

Fri Mar 01 2019

Journal Name

Applied Acoustics

Theoretical model of absorption coefficient of an inhomogeneous MPP absorber with multi-cavity depths

Micro-perforated panel (MPP) absorber has been known as an alternative absorber to classical porous material given its facile installation

long durability

environmental friendliness and attractive appearance. Extensive studies of MPP absorber proposing the improvement of its absorption frequency bandwidth have been published. This study presents a MPP absorber introduced with inhomogeneous perforations and with multi-cavity depths. The MPP is divided into two sub-area

where each area has different hole diameter

perforation ratio and a separated backed cavity depth. The acoustic impedance is modelled using electrical equivalent circuit and the absorption coefficient is calculated under normal-incidence of sound. It is found that the inhomogeneous MPP can have good bandwidth of absorption by designing the sub-MPP of smaller perforation ratio with large hole diameter and the one having the larger perforation ratio with smaller hole diameter. The absorption bandwidth can be conveniently controlled by adjusting the cavity depth of each sub-MPP. The results from the experimental work show good agreement with the theoretical model.

Ali Ibrahim

Azma

Roszaidi

Iwan

Al-Ameri

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(88)

(74)

Publication Date

Sun Jan 01 2023

Journal Name

International Conference Of Computational Methods In Sciences And Engineering Iccmse 2021

Penetration of charged particles in ZnO using energy loss function model

Drude model

Electro-optics

Thin films

Raghad Shawqi

Nabil Janan

Mays Afif

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In this paper, we propose an approach to estimate the induced potential, which is generated by swift heavy ions traversing a ZnO thin film, via an energy loss function (ELF). This induced potential is related to the projectile charge density, ρq(k) and is described by the extended Drude dielectric function. At zero momentum transfer, the resulting ELF exhibits good agreement with the previously reported results. The ELF, obtained by the extended Drude model, displays a realistic behavior over the Bethe ridge. It is observed that the induced potential relies on the heavy ion velocity and charge state q. Further, the numerical results show that the induced potential for neutral H, as projectile, dominates when the heavy ion velocity is less

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(2)

Publication Date

Sat Oct 01 2022

Journal Name

Environmental Advances

Stability and performance studies of emulsion liquid membrane on pesticides removal using mixture of Fe3O4Â nanoparticles and span80

The current study investigated the impact of nonionic surfactant span 80 in the existence of Fe3O4 magnetic nanoparticles on the emulsification of mixture of kerosene as petroleum based organic solvents and corn oil as a green diluent in the ratio 1:1

HCl was used as internal phase and the stability of the emulsion was carried out. The proposed Pickering emulsion liquid membrane has been exploited to investigate it is ability in the extraction of Abamectin pesticides from aqueous solution without utilizing carrier agent. Further

the effects of experimental parameters on extraction efficiency and emulsion stability such as

homogenizer speed

emulsification speed

contact time

Fe3O4-Span 80 ratios

HCL concentration

internal to membrane volume ratio (I/O) and pH of the external feed solution were carried out. The results showed that more than 99% of Abamectin could be extracted at 10 min contact time with a minimum breakage percent of 0.52% at the optimal conditions. The kinetic of the extraction were studied and the mass transfer coefficient was found to be for external phase () of 1.2

interfacial reaction rate constant () of 5.83 and the overall mass transfer coefficient () of 3.91 . The results of recyclability of the PELM revealed that the emulsion stability and extraction efficiency was nearly unchanged after three cycles.

Ahmed A.

Noor Q.

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