doi:10.24996/ijs.2020.61.8.20

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Publication Date

Fri Aug 28 2020

Journal Name

Iraqi Journal Of Science

Volume

61

Issue Number

8

DOI

10.24996/ijs.2020.61.8.20

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Homotopy Transforms Analysis Method for Solving Fractional Navier- Stokes Equations with Applications

Caputo's Derivative

Homotopy Analysis Method

Laplace Transform Method

Navier- Stokes equations of fractional order derivative

Numerical Solution

Eman Mohmmed

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The presented work includes the Homotopy Transforms of Analysis Method (HTAM). By this method, the approximate solution of nonlinear Navier- Stokes equations of fractional order derivative was obtained. The Caputo's derivative was used in the proposed method. The desired solution was calculated by using the convergent power series to the components. The obtained results are demonstrated by comparison with the results of Adomain decomposition method, Homotopy Analysis method and exact solution, as explained in examples (4.1) and (4.2). The comparison shows that the used method is powerful and efficient.

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Publication Date

Wed Sep 12 2018

Journal Name

Ibn Al-haitham Journal For Pure And Applied Sciences

Recognition of Off-line Printed Arabic Text Using Hidden Markov Models

Automatic identification

Hidden Markov series

Printed text

Automatic recognition of printed text

Markov series automatic recognition.

Atheel

...Show More Authors

In this paper, we introduce a method to identify the text printed in Arabic, since the recognition of the printed text is very important in the applications of information technology, the Arabic language is among a group of languages with related characters such as the language of Urdu , Kurdish language , Persian language also the old Turkish language " Ottoman ", it is difficult to identify the related letter because it is in several cases, such as the beginning of the word has a shape and center of the word has a shape and the last word also has a form, either texts in languages where the characters are not connected, then the image of the letter one in any location in the word has been Adoption of programs ready for him A long time.&

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(1)

Publication Date

Mon Aug 01 2022

Journal Name

Baghdad Science Journal

A Case control study to determine Macrophage migration inhibitor, and N-telopeptides of type I bone collagen Levels in the sera of osteoporosis patients

Alkaline phosphatase

Bone

Macrophage migration inhibitor

N-telopeptides of type I bone collagen

Osteoporosis

Vitamin D

Layla Othman

Ekhlass

Ahlam M.

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This study focused on determining the markers of Macrophage migration inhibitor (MIF), as well as the N-telopeptides of type I bone collagen (NTX), and some other parameters (alkaline phosphatase (ALP), vitamin D (Vit D), calcium (Ca), phosphorus (P), and magnesium (Mg), and their correlation with other parameters in osteoporosis. One hundred ten subjects were involved in the current study. There were two groups of patients: group I (30) women with severe osteoporosis and group II (30) women with mild osteoporosis. For comparison, 50 apparently healthy individuals were included as a control. Serum levels of MIF, and NTX were significantly higher in groups I and II as compared to the control group, which indicate that these two parameters

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Publication Date

Mon Aug 26 2024

Journal Name

Jbpml

Studying The Changes in Motility and Morphology on Human sperm after exposure to low doses of x-rays

Motility and Morphology on Human sperm

sperm

exposure to low doses of x-rays

X-ray

Haider M. AL-Khalidi1, Aedah Zeki Alkaisy1, Hussein K. Al-Dulaimi

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the energy that a radiation source emits as light (photons), electromagnetic waves, or particles is known as radiation. X-ray is one type of ionizing radiation that falls within the electromagnetic wave category of short wavelengths. Because of their short wavelength. X-ray is a type of ionizing radiation that is used in a constantly growing number of diagnostic procedures. X-ray diagnostic imaging has been employed in the medical field for more than a century(Hariyoto et al., 2020). Radiation has advantages for human health, but there is also a risk. the impacts of Radiation on Fertility it is an oligospermia, or a reduction in the number of sperm cells, which is already possible after radiation exposure of 0.15 mGy. It Leads to impede

Publication Date

Sat Sep 01 2018

Journal Name

Polyhedron

Novel dichloro (bis {2-[1-(4-methylphenyl)-1H-1, 2, 3-triazol-4-yl-κN3] pyridine-κN}) metal (II) coordination compounds of seven transition metals (Mn, Fe, Co, Ni, Cu, Zn and Cd)

The 1

3-dipolar cycloaddition “click” reaction between an azide and an alkyne to give a 1

2

3-triazole was reported by Huisgen in 1961 [1]. In 2002 the Copper(I)-catalyzed Azide-Alkyne Cycloaddition (CuAAC) to prepare a 1

2

3-triazole was reported [2]

[3]. The existence of relatively basic nitrogen atoms in the 1

2

3-triazole rings

and the possibility of introducing additional donor groups in the substituents (Fig. 1)

made the CuAAC “click” reaction an attractive method to prepare differently substituted 1

2

3-triazoles. These compounds have been used as ligands to coordinate to various metal ions that display a range of applications such as in electrochemical and photochemical studies

in supramolecular chemistry

magnetism

metal-ion sensing and catalysis [4]. The reasons for the success of the “click” reaction

is that it is easy to carry out and is widely applicable. It is not affected by a variety of functional groups

and can be carried out with a variety of Cu(I) catalysts and solvents

including aqueous conditions. The Cu(I) catalysts overcome the high activation energy barrier of the non-catalyzed Huisgen reaction by changing the mechanism of the reaction. A large variety of copper catalysts can be used for the CuAAC reaction

on condition that the maximum concentration of Cu(I) species is generated during the reaction. The pre-catalyst can be a Cu(II) salt (usually CuSO4) together with a reducing agent (often sodium ascorbate) or a Cu(I) compound in the presence of a base or amine ligand and a reducing agent to prevent oxidation to Cu(II). Some strong oxidising cupric salts or complexes such as Cu(OAc)2 also work. The solvent is very flexible from organic to aqueous

with the most commonly used combination water + an alcohol (t-BuOH

MeOH or EtOH). The key role of the solvent or solvent mixture is to solubilize the substrates and Cu(I) catalyst in order to ensure rapid reactions. Such aqueous conditions are very useful for biochemical conjugations

as well as for organic syntheses. We recently reported on the synthesis of a series of differently substituted 1

2

3-triazole chromophores

the substituted 2-(1-phenyl-1H-1

2

3-triazol-4-yl)pyridine ligands [5]

see Fig. 2 middle

with substituents R = H (L1)

CH3 (L2)

OCH3 (L3)

COOH

F

Cl

CN

CF3

O(CH2)3CH3 and N(CH3)2. These versatile ligands were found to coordinate to various first row transition metals

such as manganese

cobalt and nickel [6]. Here we extend the series to include more first row transition metal(II) coordination compounds

iron

copper and zinc

as well as a second row transition metal(II) coordination compound

cadmium

containing the 2-(1-(4-methyl-phenyl)-1H-1

2

3-triazol-1-yl)pyridine chromophore (Fig. 2 right with R = CH3). This series of seven novel coordination compounds is the first series of pyridyl-triazole based transition metal coordination compounds where seven different transition metals are coordinated to the same 1

2

3-triazole chromophore

namely 2-(1-(4-methyl-phenyl)-1H-1

2

3-triazol-1-yl)pyridine.

Kinaan M

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Publication Date

Sun Aug 30 2020

Journal Name

Journal Of Economics And Administrative Sciences

مقترح اسلوب IRWs الحصين لتقدير أنموذج الانحدار المقسم لحركة حمولة قاع نهر دجلة ونقطة التغيير لكمية تصريف المياه عند مدينة بغداد

segmented linear regression

change point

reparameterization

M-estimator

S-estimator

bed-load transport

hydrology of water bodies

محمد احمد

Omar Abdulmohsin

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يتكون الانحدار المقسم من عدة أقسام تفصل بينها نقاط انتماء مختلفة، فتظهر حالة عدم التجانس الناشئة من عملية فصل الأقسام ضمن عينة البحث. ويهتم هذا البحث في تقدير موقع نقطة التغيير بين الأقسام وتقدير معلمات الأنموذج، واقتراح طريقة تقدير حصينة ومقارنتها مع بعض الطرائق المستعملة في الانحدار الخطي المقسم. وقد تم استعمال أحد الطرائق التقليدية (طريقة Muggeo) لإيجاد مقدرات الإمكان الأعظم بالأسلوب الت

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Publication Date

Wed Dec 30 2020

Journal Name

Iraqi Journal Of Chemical And Petroleum Engineering

Experimental Investigation of Pomegranate Peel and Grape Seed Powder Additives on the Rheological and Filtration Properties of Un-Weighted WBM

water-based mud

local material additives

powders of pomegranate peel and grape seed

rheological properties

filtration properties.

Noor Sabeeh

Faleh H.M.

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The chemical additives used to enhance the properties of drilling mud cause damage to humans and the environment. Therefore, it is necessary to search for alternative additives to add them to the drilling mud. Thus, this study investigates the effects of pomegranate peel and grape seed powders as natural waste when added to un-weighted water-based mud. The test includes measurements of the rheological properties and filtration, as well as the alkanity and density of the drilling mud. The results showed a decrease in PH values with an increase in the concentrations of pomegranate peel or grapeseed, and a decrease in mud density with an increase in powders of pomegranate peel and grape seed concentrations that resulted f

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(3)

Publication Date

Tue Nov 01 2016

Journal Name

Journal Of Economics And Administrative Sciences

Proposal of Using Principle of Maximizing Entropy of Generalized Gamma Distribution to Estimate the Survival probabilities of the Population in Iraq

Generalized Gamma Distribution

survival function

the Maximum Likelihood

the principle of the Maximizing function entropy

kernel function.

Omar Abdulmohsin

رغدة زياد

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In this research we been estimated the survival function for data suffer from the disturbances and confusion of Iraq Household Socio-Economic Survey: IHSES II 2012 , to data from a five-year age groups follow the distribution of the Generalized Gamma: GG. It had been used two methods for the purposes of estimating and fitting which is the way the Principle of Maximizing Entropy: POME, and method of booting to nonparametric smoothing function for Kernel, to overcome the mathematical problems plaguing integrals contained in this distribution in particular of the integration of the incomplete gamma function, along with the use of traditional way in which is the Maximum Likelihood: ML. Where the comparison on the basis of the method of the Cen

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Publication Date

Wed Jan 02 2019

Journal Name

Journal Of The College Of Languages (jcl)

Difficulties and Problems in Teaching and Learning Spanish in Particular and Foreign Languages: Las Dificultades en la Enseñanzayel Aprendizaje de Español como Lengua Extranjera (ELE)en Particular ylas Lenguas Extranjeras en General: El Docente no Nativo

Teaching

Foreign language

Spanish

Teaching Staff

Methods of Teaching.

enseñanza

lengua extranjera

docente no nativo

actuación

metodología.

Awad Hussein

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This paper aims at providing the teaching staff members with the necessary skills so as to become capable of tackling various situations, and treating daily problems that face students learning Spanish as a Second Language. This is made as an attempt to make teachers of foreign languages in general acquainted with modern trends of teaching with less complicated methods, specifically in teaching e earlier stages of foreign languages.

Abstracto:

En el presente trabajo pretendemos dotar al docente no nativo de Lenguas extranjeras, con algunos de los métodos necesari

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Publication Date

Wed Apr 12 2017

Journal Name

Ibn Al-haitham Journal For Pure And Applied Sciences

Studying the Biological Activity of Some Oxazepine Derivatives Against Some G(+) and G(-) Bacteria

activity of 1

3â€“Oxazepine

pseudomonas aeruginosa

E-coli

staphylococcus aureus

Bacillus subtilis.

streptomycin

gentamycin

chloramphenicol

Nalitixic acid.

Husam S.

Anwor F.

Warka'a T.

...Show More Authors

The preliminary test of the compounds N [2â€“ (3,4â€“dimethoxy nitrobenzene oxazepineâ€“ 2,3â€“dihydroâ€“4,7â€“dione]â€“5â€“mercuptoâ€“2â€“aminoâ€“1,3,4â€“thiadiazol [A] and N [ 2â€“anthralideneâ€“ 5â€“ ( 2â€“nitrophenyl ) â€“1,3â€“oxazepineâ€“4,7â€“dioneâ€“2â€“d](5â€“mercaptoâ€“1,3,4â€“thiadiazoleâ€“2â€“amin) [B] , showed that they possess high activity against some positive and negative bacteria , like pseudomonas aeruginosa (pseudo.), Escherichia coli (E-coli), staphylococcus aureus (sta.) and Bacillus subtilis (Ba.) and finally there is a study of the effect of some antibiotics like streptomyci

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Publication Date

Thu Sep 01 2011

Journal Name

Journal Of Economics And Administrative Sciences

The impact of corporate governance on narrowing the expectations gap in the audit work environment (field study)

فيحاء عبد الله

محمد سلمان

حيدر علي

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The different crises and financial collapses place in many companies, particularly in developed countries as a result of administrative and financial corruption return aspects of the task to the role of the company and the external auditor, both in their emphasis on honesty and fairness of financial statements and the Provisions of accounting information and on the contrary to the truth, you may have to the loss of the rights of stakeholders, particularly existing investors, and the loss of confidence of prospective investors in the accounting information contained in the financial statements of these companies, which led to a crisis of confidence and credibility in the profession of accounting and auditing where the wonder of ma

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