doi:10.24996/ijs.2022.63.12.30

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Publication Date

Fri Dec 30 2022

Journal Name

Iraqi Journal Of Science

Volume

63

Issue Number

12

DOI

10.24996/ijs.2022.63.12.30

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F-Approximately Regular Modules

Approximately pure submodules

F-approximately regular modules

Pure submodules

regular modules

Ahmed K.

Nuhad Salim

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We introduce in this paper the concept of an approximately pure submodule as a generalization of a pure submodule, that is defined by Anderson and Fuller. If every submodule of an R-module is approximately pure, then is called F-approximately regular. Further, many results about this concept are given.

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Publication Date

Wed Mar 01 2023

Journal Name

Journal Of Engineering

Directive and Steerable Radiation Pattern using SASPA Array

beamwidth

F/B ratio

mutual coupling

smart antenna array

SASPA-UCA array

Rabah Abduljabbar

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This work examines the ability of a special type of smart antenna array known as Switched Active Switched Parasitic Antenna (SASPA) to produce a directive and electronically steerable radiation pattern. The SASPA array consists of antenna elements that are switchable between active and parasitic states by using P-Intrinsic-N (PIN) diodes. The active element is the element that is supplied by the radio frequency while short-circuiting the terminals of an element in the array results in a parasitic element. Due to the strong mutual coupling between the elements, a directional radiation pattern with high gain and a small beamwidth can be produced with only one active element operating at a time. By changing the parasitic state to the active

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Publication Date

Wed Jan 02 2019

Journal Name

Journal Of The College Of Languages (jcl)

A traditional model of translation: Critical analysis: Традиционные модели перевода: критический анализ

traditional translation models

theory of formal and dynamic equivalence

theory of regular correspondences

informative

situational-denotative

functional-pragmatic theory of communication levels.

традиционные модели перевода

теория формальной и динамической эквивалентности

теория закономерных соответствий

информативная

ситуативно-денотативная

функционально-прагматическая теория уровней коммуникации

Ali Kadhim

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The article critically analyzes traditional translation models. The most influential models of translation in the second half of the 20th century have been mentioned, among which the theory of formal and dynamic equivalence, the theory of regular correspondences, informative, situational-denotative, functional-pragmatic theory of communication levels have been considered. The selected models have been analyzed from the point of view of the universality of their use for different types and types of translation, as well as the ability to comprehend the deep links established between the original and the translation.

Аннотация

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Publication Date

Thu Jun 01 2023

Journal Name

Baghdad Science Journal

Topological Indices Polynomials of Domination David Derived Networks

Dominating David Derived networks

F-K Banhatti indices

harmonic K Banhatti indices

K-Banhatti polynomial

K-hyper Banhatti indices

symmetric division K Banhatti indices

Anjaneyulu

Vijaya Chandra Kumar

R.

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The chemical properties of chemical compounds and their molecular structures are intimately connected. Topological indices are numerical values associated with chemical molecular graphs that help in understanding the physicochemical properties, chemical reactivity and biological activity of a chemical compound. This study obtains some topological properties of second and third dominating David derived (DDD) networks and computes several K Banhatti polynomial of second and third type of DDD.

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Publication Date

Sat Apr 01 2023

Journal Name

Baghdad Science Journal

Some K-Banhatti Polynomials of First Dominating David Derived Networks

Dominating David Derived networks

F-K Banhatti indices

harmonic K Banhatti indices

K-Banhatti polynomial

K-hyper Banhatti indices

symmetric division K Banhatti indices

Anjaneyulu

Vijaya Chandra Kumar

R.

...Show More Authors

Chemical compounds, characteristics, and molecular structures are inevitably connected. Topological indices are numerical values connected with chemical molecular graphs that contribute to understanding a chemical compounds physical qualities, chemical reactivity, and biological activity. In this study, we have obtained some topological properties of the first dominating David derived (DDD) networks and computed several K-Banhatti polynomials of the first type of DDD.

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Publication Date

Sat Jul 31 2021

Journal Name

Iraqi Journal Of Science

Enhancement of Spectrum Sensing Performance via Cooperative Cognitive Radio ‎Networks at Low SNR

Cognitive Radio

Probability of Detection (Qd)

Probability of Miss-Detection (Qmd )

Probability of False Alarm (Q f a )

Total Error Rate (Qe )

threshold ( Ⱦ )

Kotb A.

Ahmed S.

Ahmed

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The inefficient use of spectrum is the key subject to overcome the upcoming spectrum crunch issue. This paper presents a study of performance of cooperative cognitive network via hard combining of decision fusion schemes. Simulation results presented different cooperative hard decision fusion schemes for cognitive network. The hard-decision fusion schemes provided different discriminations for detection levels. They also produced small values of Miss-Detection Probability at different values of Probability of False Alarm and adaptive threshold levels. The sensing performance was investigated under the influence of channel condition for proper operating conditions. An increase in the detection performance was achi

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Publication Date

Sun Oct 17 2021

Journal Name

Iraqi Journal Of Physics

The effect of inorganic pigment on the tensile properties of polycarbonate irradiated with UV – light

The effect of UV-light on the tensile properties of pure PC has been studied. It was shown that irradiation of PC undergo a drop in the tensile properties of 30 hour of exposure. The results of irradiated samples shows that the addition of ZnO and TiO2 with different percentages (0.5

1

1.5 %) will reduce the Young modulus and ultimate stress of PC/ZnO

PC/ TiO2 composites

Z. R.

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The effect of UV-light on the tensile properties of pure PC has been studied. It was shown that irradiation of PC undergo a drop in the tensile properties of 30 hour of exposure. The results of irradiated samples shows that the addition of ZnO and TiO2 with different percentages (0.5, 1, 1.5 %) will reduce the Young modulus and ultimate stress of PC/ZnO ,PC/ TiO2 composites

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Publication Date

Wed Nov 30 2022

Journal Name

Iraqi Journal Of Science

New Generalizations of Soft LC-Spaces

Soft K(NpC)-space

soft L(NpC)-space

soft F ̃_σ-Np-closed set

soft NpL_k- spaces

for k=1

2

3

4

soft NP-space

soft NpQ-set space

Haider Juber

Sabiha I.

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In this article, we introduce a new type of soft spaces namely, soft spaces as a generalization of soft paces. Also, we study the weak forms of soft spaces, namely, soft spaces, soft spaces, soft space, and soft spaces. The characterizations and fundamental properties related to these types of soft spaces and the relationships among them are also discussed.

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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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