Notes On The Non Linear Operator Equation I AXAX n

Buthainah A.A. Ahmed Ahmed; May Mohammed Helal May Mohammed Helal

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Publication Date

Thu Dec 29 2016

Journal Name

Ibn Al-haitham Journal For Pure And Applied Sciences

Volume

24

Issue Number

1

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Notes On The Non Linear Operator Equation I AXAX n

non-linear operator equation

spectral radius

positive definite operator

Buthainah A.A. Ahmed Ahmed

May Mohammed Helal May Mohammed Helal

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Necessary and sufficient conditions for the operator equation I AXAX n*, to have a real positive definite solution X are given. Based on these conditions, some properties of the operator A as well as relation between the solutions X andAare given.

Publication Date

Mon Feb 01 2021

Journal Name

Iop Conference Series: Materials Science And Engineering

On modelling and adaptive control of a linear smart beam model interacting with fluid

Hayder F N

Kareem Jawad

AbdnoorJameel Shaheed

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AbstractThis paper deals with modelling and control of Euler-Bernoulli smart beam interacting with a fluid medium. Several distributed piezo-patches (actuators and/or sensors) are bonded on the surface of the target beam. To model the vibrating beam properly, the effect of the piezo-patches and the hydrodynamic loads should be taken into account carefully. The partial differential equation PDE for the target oscillating beam is derived considering the piezo-actuators as input controls. Fluid forces are decomposed into two components: 1) hydrodynamic forces due to the beam oscillations, and 2) external (disturbance) hydrodynamic loads independent of beam motion. Then the PDE is discretized usi ... Show More

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Publication Date

Fri May 01 2020

Journal Name

Journal Of Physics: Conference Series

New Approach for Solving (1+1)-Dimensional Differential Equation

N A

L N M

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(18)

(6)

Publication Date

Fri Jan 01 2016

Journal Name

Pure And Applied Mathematics Journal

Memory Effects in Diffusion Like Equation Via Haar Wavelets

I. K. Youssef

Adel Rashed A. Ali

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(2)

Publication Date

Mon Feb 20 2012

Journal Name

North Africa Technical Conference And Exhibition

Comprehensive Model for Flash Calculations of Heavy Oils Using the Soave - Redlich - Kwong Equation of State

upstream oil & gas

Soave - Redlich - Kwong

pvt measurement

equation of state

phase behavior

correlation

mole fraction

Mohammed S.

Omar

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AbstractOne of the main techniques to achieve phase behavior calculations of reservoir fluids is the equation of state. Soave - Redlich - Kwong equation of state can then be used to predict the phase behavior of the petroleum fluids by treating it as a multi-components system of pure and pseudo-components. The use of Soave – Redlich – Kwon equation of state is popular in the calculations of petroleum engineering therefore many researchers used it to perform phase behavior analysis for reservoir fluids (Wang and Orr (2000), Ertekin and Obut (2003), Hasan (2004) and Haghtalab (2011))This paper presents a new flash model for reservoir fluids in gas – oil se ... Show More

(1)

(9)

Publication Date

Wed Mar 18 2020

Journal Name

Baghdad Science Journal

Effect of Temperature and Alcohol on the Determination of Critical Micelle Concentration of Non- Ionic Surfactants in Magnetic Water

Conductometry magnetic water

Non-ionic surfactant

Tweens (20

40 and 80).

Aamer A.

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The determination of critical micelle concentration of selected non-ionic surfactants (Tween 20,40 and 80) have been investigated using magnetic water(MW)as an aqueous medium.Conductometry technique is used to determine critical micelle concentration.The effect of alcohol addition and temperature variation at the range(293.15 -303.15K) are also pursued. It is concluded that the process of micellization is spontaneous and endothermic because of the observed free energy of micellization (ΔG^om) , enthalpy change of micellization (ΔH^om), and entropy change of micellization (ΔS^om) for the system was also studied.The properties of the non-ionic surfactants were studied, both in absence and presence of

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(7)

(6)

Publication Date

Sun Jan 01 2023

Journal Name

Technologies And Materials For Renewable Energy, Environment And Sustainability: Tmrees22fr

Investigate the structural properties of Tl1-xHgxSr2Ca2Cu3O8+δ compound by using Scherrer modified equation

Jaafar

Maher

Hassan

Mohammed

Kareem

Auday

Riyam

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(2)

(1)

Publication Date

Thu Jan 01 2015

Journal Name

Journal Of Chemical,biological And Physical Sciences

Study the Electron Drift Velocity in Carbon Dioxide Gas Obtained From Boltzmann Equation Analysis‏

wasan

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Publication Date

Thu Jan 01 2015

Journal Name

Finite Difference Methods,theory And Applications

Determination of the Time-Dependent Thermal Conductivity in the Heat Equation with Spacewise Dependent Heat Capacity

M. S.

D.

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(3)

(1)

Publication Date

Wed Jan 01 2014

Journal Name

International Journal Of Algebra

N-Fold Commutative KU-Algebras

Samy M.

Fatema F.

...Show More Authors

Publication Date

Thu May 04 2017

Journal Name

Ibn Al-haitham Journal For Pure And Applied Sciences

Strongly (Comletely) Hollow Submodules I

Strongly (completely)-hollow submodules

distributive modules

multiplication (comultiplication) modules

scalar modules.

I. M. A.

Gh. A.

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Let R be a commutative ring with unity and let M be an R-module. In this paper we
study strongly (completely) hollow submodules and quasi-hollow submodules. We investigate
the basic properties of these submodules and the relationships between them. Also we study
the be behavior of these submodules under certain class of modules such as compultiplication,
distributive, multiplication and scalar modules. In part II we shall continue the study of these
submodules.

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