On Blow-up Solutions of A Parabolic System Coupled in Both Equations and Boundary Conditions

Maan A. Rasheed

doi:10.21123/bsj.2021.18.2.0315

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Publication Date

Tue Jun 01 2021

Journal Name

Baghdad Science Journal

Volume

18

Issue Number

2

DOI

10.21123/bsj.2021.18.2.0315

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On Blow-up Solutions of A Parabolic System Coupled in Both Equations and Boundary Conditions

Rection-Diffusion equation

Blow-up set

Blow-up rate estimate

Comparison principle

Radial function

Maan A. Rasheed

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This paper is concerned with the blow-up solutions of a system of two reaction-diffusion equations coupled in both equations and boundary conditions. In order to understand how the reaction terms and the boundary terms affect the blow-up properties, the lower and upper blow-up rate estimates are derived. Moreover, the blow-up set under some restricted assumptions is studied.

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Publication Date

Tue Jan 01 2019

Journal Name

Research Journal Of Pharmacy And Technology

New Mode Semi-Automated Turbidimetric Determination of Mefenamic Acid by Ayah 6SX1-ST-2D Solar cell-CFI Analyser

Raed F.

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(2)

Publication Date

Wed Oct 04 2023

Journal Name

Environmental Progress & Sustainable Energy

Removal of <scp>E133</scp> brilliant blue dye from artificial wastewater by electrocoagulation using cans waste as electrodes

adsorption

aluminum

dye

electrochemical treatment

wastewater

Rasha H.

Entisar M.

Khalid M.

Ammar S.

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AbstractSolid‐waste management, particularly of aluminum (Al), is a challenge that is being confronted around the world. Therefore, it is valuable to explore methods that can minimize the exploitation of natural assets, such as recycling. In this study, using hazardous Al waste as the main electrodes in the electrocoagulation (EC) process for dye removal from wastewater was discussed. The EC process is considered to be one of the most efficient, promising, and cost‐effective ways of handling various toxic effluents. The effect of current density (10, 20, and 30 mA/cm2), electrolyte concentration (1 and 2 g/L), and initial concentration of Brilliant Blue dye (15 and 30 mg/L) on ... Show More

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Publication Date

Thu Feb 29 2024

Journal Name

Iraqi Journal Of Science

Finding the Exact Solution of Kepler’s Equation for an Elliptical Satellite Orbit Using the First Kind Bessel Function

Rasha H.

Abdul-Rahman H.

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In this study, the first kind Bessel function was used to solve Kepler equation for an elliptical orbiting satellite. It is a classical method that gives a direct solution for calculation of the eccentric anomaly. It was solved for one period from (M=0-360)° with an eccentricity of (e=0-1) and the number of terms from (N=1-10). Also, the error in the representation of the first kind Bessel function was calculated. The results indicated that for eccentricity of (0.1-0.4) and (N = 1-10), the values of eccentric anomaly gave a good result as compared with the exact solution. Besides, the obtained eccentric anomaly values were unaffected by increasing the number of terms (N = 6-10) for eccentricities (0.8 and 0.9). The Bessel

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Publication Date

Thu Mar 18 2010

Journal Name

Spe Projects, Facilities & Construction

Correlating Optimum Stage Pressure for Sequential Separator Systems

separation and treating

PVT measurement

optimization problem

Upstream Oil & Gas

Phase Behavior

objective function

optimum stage pressure

GOR

Artificial Intelligence

Mohammed S.

Omar

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SummaryA study to find the optimum separators pressures of separation stations has been performed. Stage separation of oil and gas is accomplished with a series of separators operating at sequentially reduced pressures. Liquid is discharged from a higher-pressure separator into the lower-pressure separator. The set of working separator pressures that yields maximum recovery of liquid hydrocarbon from the well fluid is the optimum set of pressures, which is the target of this work.A computer model is used to find the optimum separator pressures. The model employs the Peng-Robinson equation of state (Peng and Robinson 1976) for volatile oil. The application of t ... Show More

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Publication Date

Sun Jun 06 2010

Journal Name

Baghdad Science Journal

Stochastic Non-Linear Pseudo-Random Sequence Generator

"Stochastic process

birth and death key generator (BDG)

linear feedback shift register (LFSR)

Pseudo- noise sequence

Auto-correlation function

Periodicity."

Mahmood A.

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Many of the key stream generators which are used in practice are LFSR-based in the sense that they produce the key stream according to a rule y = C(L(x)), where L(x) denotes an internal linear bit stream, produced by small number of parallel linear feedback shift registers (LFSRs), and C denotes some nonlinear compression function. In this paper we combine between the output sequences from the linear feedback shift registers with the sequences out from non linear key generator to get the final very strong key sequence

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Publication Date

Fri Aug 18 2023

Journal Name

Journal Of Research In Medical And Dental Science

Morphologic Evaluation of the Permanent Mandibular First Molar within an Iraqi Population Using Cone Beam Computed Tomography (Retrospective Study)

Duaa M

Anas Falah

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Publication Date

Wed Dec 12 2018

Journal Name

Iop Conference Series: Materials Science And Engineering

The performance of MnO2/graphite electrode for TOC removal from wastewater by indirect electrochemical oxidation process

TOC

MnO2

indirect

electro-oxidation

Rasha H.

M H

A S

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Electrochemical oxidation in the presence of sodium chloride used for removal of phenol and any other organic by products formed during the electrolysis by using MnO2/graphite electrode. The performance of the electrode was evaluated in terms fraction of phenol and the formed organic by products removed during the electrolysis process. The results showed that the electrochemical oxidation process was very effective in the removal of phenol and the other organics, where the removal percentage of phenol was 97.33%, and the final value of TOC was 6.985 ppm after 4 hours and by using a speed of rotation of the MnO2 electrode equal to 200 rpm.

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Publication Date

Sun Nov 01 2015

Journal Name

Journal Of Cosmetics, Dermatological Sciences And Applications

Treatment of localized vitiligo with 1% pimecrolimus Cream versus 0.05% clobetasol propionate cream—single, blinded, comparative therapeutic trial

Adil A Noaimi

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KE Sharquie, HR Al-Hamamy, AA Noaimi, KA Ali, Journal of Cosmetics, Dermatological Sciences and Applications, 2015 - Cited by 3

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Publication Date

Mon Mar 11 2019

Journal Name

Baghdad Science Journal

The Al-Abiadh Valley Drainage Basin Environmental Aspects Extraction Using Quantitatively Morphometric Analyses of Shuttle Radar Topographic Mission Data

Digital elevation model

Environment factors

Morphometric analyses

Three-dimensional modeling.

Jawad

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The accurate extracting, studying, and analyzing of drainage basin morphometric aspects is important for the accurate determination of environmental factors that formed them, such as climate, tectonic activity, region lithology, and land covering vegetation.

This work was divided into three stages; the 1^st stage was delineation of the Al-Abiadh basin borders using a new approach that depends on three-dimensional modeling of the studied region and a drainage network pattern extraction using (Shuttle Radar Topographic Mission) data, the 2^nd was the classification of the Al-Abiadh basin streams according to their shape and widenings, and the 3^rd was ex

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Publication Date

Fri Jul 12 2024

Journal Name

Biomass Conversion And Biorefinery

Chitosan-triphosphate/food grade algae/montmorillonite clay for adsorptive removal of methyl violet 2B dye removal: Behnken design optimization

Muna Sarhan

Ahlam M.

Ali H.

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(3)

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