Investigation of halo structure of neutron rich 14B, 15C, 19C and 22N nuclei in the two body model

Ahmed N. Abdullah

doi:10.1142/S0218301320500159

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Publication Date

Sun Mar 01 2020

Journal Name

International Journal Of Modern Physics E

Volume

29

DOI

10.1142/S0218301320500159

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Investigation of halo structure of neutron rich 14B, 15C, 19C and 22N nuclei in the two body model

Halo nuclei

two-body model

cosh potential.

Ahmed N. Abdullah

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The two body model of (Core+n) within the radial wave functions of the cosh potential has been used to investigate the ground state features such as the proton, neutron and matter densities, the root mean square (RMS) nuclear proton, neutron, charge and mass radii of unstable neutron-rich 14B, 15C, 19C and 22N nuclei. The calculated results show that the two body model with the radial wave functions of the cosh potential succeeds in reproducing neutron halo in these nuclei.

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Publication Date

Sun May 01 2016

Journal Name

Journal Of Engineering

Experimental Investigation of Convection Heat Transfer Enhancement in Horizontal Channel Provided with Metal Foam Blocks

convection heat transfer

metal foam

constant heat flux.

Mohammed Abdulraouf

Abbas Husain

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Convection heat transfer in a horizontal channel provided with metal foam blocks of two numbers of pores per unit of length (10 and 40 PPI) and partially heated at a constant heat flux is experimentally investigated with air as the working fluid. A series of experiments have been carried out under steady state condition. The experimental investigations cover the Reynolds number range from 638 to 2168, heat fluxes varied from 453 to 4462 W/m², and Darcy number 1.77x10^-5, 3.95x10^-6. The measured data were collected and analyzed. Results show that the wall temperatures at each heated section are affected by the imposed heat flux variation, Darcy number, and Reynolds number variation. The var

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Publication Date

Fri Jan 01 2021

Journal Name

Journal Of Engineering

A Computational Fluid Dynamics Investigation of using Large-Scale Geometric Roughness Elements in Open Channels

APDL

CFD

Configurations

Roughness Elements

Velocity Distributions

Iman A.

Riyadh Z.

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The hydraulic behavior of the flow can be changed by using large-scale geometric roughness elements in open channels. This change can help in controlling erosions and sedimentations along the mainstream of the channel. Roughness elements can be large stone or concrete blocks placed at the channel's bed to impose more resistance in the bed. The geometry of the roughness elements, numbers used, and configuration are parameters that can affect the flow's hydraulic characteristics. In this paper, velocity distribution along the flume was theoretically investigated using a series of tests of T-shape roughness elements, fixed height, arranged in three different configurations, differ in the number of lines of roughness element

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(6)

Publication Date

Thu Nov 01 2018

Journal Name

Journal Of Biological Sciences

Investigation of Plasmid-Associated Fluoroquinolone Resistance in Nosocomial Pseudomonas aeruginosa Isolated from Infected Burn Wounds

Shaymaa

Ahmed S.K.

Hala

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(6)

(1)

Publication Date

Sat Feb 05 2022

Journal Name

Applied Nanoscience

RETRACTED ARTICLE: The impact of fear on a stage structure prey–predator system with anti-predator behavior

Sabah Ali

Sefer

Raid Kamel

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A prey-predator interaction model has been suggested in which the population of a predator consists of a two-stage structure. Modified Holling's disk equation is used to describe the consumption of the prey so that it involves the additional source of food for the predator. The fear function is imposed on prey. It is supposed that the prey exhibits anti-predator behavior and may kill the adult predator due to their struggle against predation. The proposed model is investigated for existence, uniqueness, and boundedness. After determining all feasible equilibrium points, the local stability analyses are performed. In addition, global stability analyses for this model using the Lyapunov method are investigated. The chance of occurrence of loc

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(3)

Publication Date

Mon Jan 01 2024

Journal Name

Anais Da Academia Brasileira De Ciências

Morphological study for Accipitrid birds (Accipitridforms, Accipitridae) in Iraq; part two

A part two of Accipitridae Family members that belong to three genera: Circus

Gyps

and Neophron were documented as morphometrics

distribution ranges

and conservation status were reviewed and comprehensively discussed. A total of 29 voucher specimens belong to six species which are conserved in the “Iraq Natural History Research Center and Museum INHM” as follow: Marsh Harrier Circus aeruginosus (Linnaeus

1758)

Hen Harrier Circus cyaneus (Linnaeus

1766)

Montagus Harrier Circus pygargus (Linnaeus

1758)

Pallid Harrier Circus macrourus (Gmelin

1770)

Egyptian vulture Neophron percnopterus (Linnaeus

1758)

and Griffon vulture Gyps fulfus (Hablitz

1783). The results revealed significant criteria about near threatened NT species IUCN and Birdlife International listed as Pallid Harrier Circus macrourus

and Endangered (EN) species as Egyptian vulture Neophron percnopterus globally decreasing population trend.

HIND D.

KHALIDA I.

AFKAR M.

SUHAD Y.

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Publication Date

Tue May 01 2018

Journal Name

Journal Of Physics: Conference Series

Chaotic behaviour of the Rossler model and its analysis by using bifurcations of limit cycles and chaotic attractors

Kejeen

R K

F H

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The behaviour of certain dynamical nonlinear systems are described in term as chaos, i.e., systems' variables change with the time, displaying very sensitivity to initial conditions of chaotic dynamics. In this paper, we study archetype systems of ordinary differential equations in two-dimensional phase spaces of the Rössler model. A system displays continuous time chaos and is explained by three coupled nonlinear differential equations. We study its characteristics and determine the control parameters that lead to different behavior of the system output, periodic, quasi-periodic and chaos. The time series, attractor, Fast Fourier Transformation and bifurcation diagram for different values have been described.

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(42)

(31)

Publication Date

Thu Mar 30 2017

Journal Name

Iraqi Journal Of Pharmaceutical Sciences ( P-issn 1683 - 3597 E-issn 2521 - 3512)

Synthesis and Biological Evaluation of Two New Analogues of Gonadotropin Releasing Hormone (GnRH)D-alanine8 and D-alanine

Kawkab

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So far synthesis of Gonadotropin Releasing Hormone (GnRH) analogues reported in the literature has clarified some aspects of structural activity of the naturally released GnRH. As a part of continuing efforts for further understanding of this relationship, the present investigation was undertaken which involved synthesis and biological evaluation of two GnRH analogues, firstly, by replacement of the amino acid L-Argenine in the 8^th position at the backbone structure of the natural hormone by the amino acid D-Alanine; and secondly, by replacement of the amino acid L-Glycine in the 10^th position by D-Alanine also at the backbone structure of the nature hormone, to obtain the following analogues respectively:

P

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Publication Date

Tue Dec 20 2022

Journal Name

International Journal Of Emerging Technologies In Learning (ijet)

Impact of a Proposed Strategy According to Luria’s Model in Realistic Thinking and Achievement in Mathematics

B.H.

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The research aims to find the impact of a proposed strategy according to the Luria model on realistic thinking among fifth-class scientific students and their achievement in mathematics. To achieve it, the experimental research method and the quasi-experimental design were used for two equal groups, one of them is a control group taught in traditional way and the other is an experimental one taught according to strategy based on Luria model. The research community represents the students of the fifth scientific class from the General Directorate of Education of Karkh First. The research sample (40) students were deliberately chosen and distributed equally between the two groups after making sure that they were equals in their previo

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Publication Date

Mon Oct 01 2012

Journal Name

Computers & Mathematics With Applications

Boundary element formulations for the numerical solution of two-dimensional diffusion problems with variable coefficients

M.A.

L.C.

L.

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(25)

Publication Date

Sat Mar 31 2018

Journal Name

Iraqi Journal Of Chemical And Petroleum Engineering

Static Model of Zubair Reservoir in Luhais Oil Field

Porosity

Permeability

Water saturation

Ahmed Abdulmueen

Mohammed Saleh

Abdullah Abdulhasan

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Static reservoir modeling is the interacting and analysis of the geological data to visualize the reservoir framework by three-dimensional model and distribute the static reservoir properties. The Petrel E&P software used to incorporate the data. The interpreted log data and core report used in distribution of petrophysical properties of porosity, water saturation and permeability for Zubair reservoir in Luhais oil field.

The reservoir discretized to 274968 cells in increments of 300, 200 and 1 meter in the direction of X, Y, and Z respectively. The geostatistical approach used in the distribution of the properties of porosity and water saturation overall the reservoir units. The permeability has been calculated

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