doi:10.24996/ijs.2020.61.5.17

Details

Publication Date

Thu May 28 2020

Journal Name

Iraqi Journal Of Science

Volume

61

Issue Number

5

DOI

10.24996/ijs.2020.61.5.17

Choose Citation Style

Statistics

View publication

3

Abstract Views

254

Galley Views

166

Statistics

(1)

Invertible Operators on Soft Normed Spaces

Soft linear operator

invertible soft operator

spectrum of soft operator

eigenvalue of soft operator

eigenvector of soft operator

Sabah

Buthaina

...Show More Authors

Despite ample research on soft linear spaces, there are many other concepts that can be studied. We introduced in this paper several new concepts related to the soft operators, such as the invertible operator. We investigated some properties of this kind of operators and defined the spectrum of soft linear operator along with a number of concepts related with this definition; the concepts of eigenvalue, eigenvector, eigenspace are defined. Finally the spectrum of the soft linear operator was divided into three disjoint parts.

View Publication Preview PDF

Quick Preview PDF

Publication Date

Tue Feb 13 2024

Journal Name

Iraqi Journal Of Science

Fuzzy Linear Discriminant Analysis Clustering With Its Application

clustering

fuzzy compactness and separation (FCS)

fuzzy linear discriminant analysis (FLDA)

validation clustering method

Iden

Rand

...Show More Authors

Many fuzzy clustering are based on within-cluster scatter with a compactness measure , but in this paper explaining new fuzzy clustering method which depend on within-cluster scatter with a compactness measure and between-cluster scatter with a separation measure called the fuzzy compactness and separation (FCS). The fuzzy linear discriminant analysis (FLDA) based on within-cluster scatter matrix and between-cluster scatter matrix . Then two fuzzy scattering matrices in the objective function assure the compactness between data elements and cluster centers .To test the optimal number of clusters using validation clustering method is discuss .After that an illustrate example are applied.

View Publication Preview PDF

Publication Date

Sun Jan 30 2022

Journal Name

Iraqi Journal Of Science

The Dynamics of Modified Leslie-Gower Predator-Prey Model Under the Influence of Nonlinear Harvesting and Fear Effect

predator-prey

Modified Leslie-Gower

local stability

fear effect

Non-Linear harvesting

bifurcation analysis

Saad

Raid Kamel

...Show More Authors

A modified Leslie-Gower predator-prey model with fear effect and nonlinear harvesting is developed and investigated in this study. The predator is supposed to feed on the prey using Holling type-II functional response. The goal is to see how fear of predation and presence of harvesting affect the model's dynamics. The system's positivity and boundlessness are demonstrated. All conceivable equilibria's existence and stability requirements are established. All sorts of local bifurcation occurrence conditions are presented. Extensive numerical simulations of the proposed model are shown in form of Phase portraits and direction fields. That is to guarantee the correctness of the theoretical results of the dynamic behavior of the system and t

View Publication Preview PDF

(22)

(3)

Publication Date

Sun Jul 09 2023

Journal Name

Journal Of Engineering

Comparison between Linear and Non-linear ANN Models for Predicting Water Quality Parameters at Tigris River

Artificial Neural Network

Water level

The water quality parameters

Tigris River

Non- Linear Model.

Rafa Hashim

Zainab Jaber

...Show More Authors

In this research, Artificial Neural Networks (ANNs) technique was applied in an attempt to predict the water levels and some of the water quality parameters at Tigris River in Wasit Government for five different sites. These predictions are useful in the planning, management, evaluation of the water resources in the area. Spatial data along a river system or area at different locations in a catchment area usually have missing measurements, hence an accurate prediction. model to fill these missing values is essential.
The selected sites for water quality data prediction were Sewera, Numania , Kut u/s, Kut d/s, Garaf observation sites. In these five sites models were built for prediction of the water level and water quality parameters.

View Publication Preview PDF

(3)

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

...Show More Authors

Preview PDF

Publication Date

Sun Dec 31 2023

Journal Name

Revue Académique De La Recherche Juridique

المسؤولية الجزائية لمزودي خدمة الإنترنت عن جريمة التنمر الإلكتروني.

التنمر الإلكتروني

صور التنمر الالكتروني

مزود خدمة الإنترنت.

Cyberbullying

Forms of cyberbullying

Internet service provider (ISP).

cyberintimidation

formes de cyberintimidation

fournisseur d&#039

acc&egrave

s &agrave

Internet (FAI).

النجار,

...Show More Authors

يُعد التنمر ظاهرة إجتماعية قديمة موجودة في جميع المجتمعات سواء أكان المجتمع صناعيًا أم ناميًا، كما يُعد من المفاهيم الحديثة نسبيًا، وربما يرجع لحداثة الإعتراف به نوعًا من أنواع العنف فضلاعن ندرة الدراسات التي تناولته وعدم وجود معيار محدد لتحديد السلوك الذي يعد تنمرًا أم عابرًا، لقد بدأ الأهتمام بدراسة التنمر في سبعينات القرن الماضي وأصبح موضعًا يحضى بأهتمام العديد في مختلف البلدان، وفي عصرنا الحالي تطورت

View Publication

Publication Date

Mon Dec 01 2014

Journal Name

Journal Of Economics And Administrative Sciences

Estimation Mean Wind Speed in Iraq By Using Parametric And Nonparametric Linear Mixed Models

Linear mixed model

Kernel regression

local polynomial regression

conditional local Mixed model

marginal local mixed model . Linear mixed model

Kernel regression

local polynomial regression

conditional local Mixed model

marginal local mixed model .

لقاء علي

سارة امين

...Show More Authors

In this research, the one of the most important model and widely used in many and applications is linear mixed model, which widely used to analysis the longitudinal data that characterized by the repeated measures form .where estimating linear mixed model by using two methods (parametric and nonparametric) and used to estimate the conditional mean and marginal mean in linear mixed model ,A comparison between number of models is made to get the best model that will represent the mean wind speed in Iraq.The application is concerned with 8 meteorological stations in Iraq that we selected randomly and then we take a monthly data about wind speed over ten years Then average it over each month in corresponding year, so we g

View Publication Preview PDF

Publication Date

Sun Feb 01 2015

Journal Name

Journal Of Engineering

Non-Linear Analysis of Laminated Composite Plates under General Out-Of-Plane Loading

non-linear analysis

large deflection

composite laminated plate

classical laminated plate theory and Ritz method.

Hatem Rahem

Ibtehal Abbas

Mohsin Asfoor

...Show More Authors

The theoretical analysis depends on the Classical Laminated Plate Theory (CLPT) that is based on the Von-K ráman Theory and Kirchhov Hypothesis in the deflection analysis during elastic limit as well as the Hooke's laws of calculation the stresses. New function for boundary condition is used to solve the forth degree of differential equations which depends on variety sources of advanced engineering mathematics. The behavior of composite laminated plates, symmetric and anti-symmetric of cross-ply angle, under out-of-plane loads (uniform distributed loads) with two different boundary conditions are investigated to obtain the central deflection for mid-plane by using the Ritz method. The computer programs is built using Ma

View Publication Preview PDF

Publication Date

Sun Oct 18 2015

Journal Name

International Journal Of Pure And Applied Mathematics

A MODIFIED FUZZY MULTI-OBJECTIVE LINEAR PROGRAMMING TO SOLVE AGGREGATE PRODUCTION PLANNING

aggregate production planning (APP)

fuzzy multi-objective linear programming

mathematical model

aspiration level

tolerance level

Iraq

...Show More Authors

This paper develops a fuzzy multi-objective model for solving aggregate production planning problems that contain multiple products and multiple periods in uncertain environments. We seek to minimize total production cost and total labor cost. We adopted a new method that utilizes a Zimmermans approach to determine the tolerance and aspiration levels. The actual performance of an industrial company was used to prove the feasibility of the proposed model. The proposed model shows that the method is useful, generalizable, and can be applied to APP problems with other parameters.

View Publication Preview PDF

(9)

(1)

Publication Date

Tue Jan 01 2019

Journal Name

Преподаватель ХХi век

Фонограмматическая когниция в русском и арабском языках: основы флективного когнитивного строя

ФОНОГРАММАТИЧЕСКАЯ КОГНИЦИЯ

ФЛЕКТИВНЫЙ КОГНИТИВНЫЙ СТРОЙ

МАРКЕР

ФОНЕТИЧЕСКИЕ ИЗМЕНЕНИЯ

ЗВУКОВОЕ КОЛИЧЕСТВО КОРНЯ

РУССКИЙ ЯЗЫК

АРАБСКИЙ ЯЗЫК

PHONO-GRAMMATICAL COGNITION

INFLECTED COGNITIVE SYSTEM

PHONETIC CHANGES

SOUND QUANTITY OF ROOTS

RUSSIAN LANGUAGE

ARABIC

Raheem Ali

Zar

...Show More Authors

В статье рассматривается вопрос о связи флективных изменений с мыслительными процессами на материале русского и арабского языков, анализируются семантические, фонетические, морфологические и синтаксические основы фонограмматической когниции. Цель статьи выявление прямой связи между количественным звуковым изменением согласного состава слова и мыслительными процессами, с помощью которых человеческ

View Publication Preview PDF

Publication Date

Sun Oct 22 2023

Journal Name

Iraqi Journal Of Science

Study of Matter Density Distributions, Elastic Electron Scattering form Factors and Reaction Cross Sections of 8He And 17B Exotic Nuclei

neutron-rich exotic nuclei

shell model calculations

elastic electron scattering form factor

density distributions

root mean square radii of halo nuclei PACS number(s)

21.10.Gv

25.30.Bf

21.10.ft

Adel

Gaith

Ahmed

...Show More Authors

The ground state densities of unstable neutron-rich 8He and 17B exotic nuclei are studied via the framework of the two-frequency shell model (TFSM) and the binary cluster model (BCM). In TFSM, the single particle harmonic oscillator wave functions are used with two different oscillator size parameters βc and βv where the former is for the core (inner) orbits and the latter is for the valence (halo) orbits. In BCM, the internal densities of the clusters are described by single particle Gaussian wave functions. Shell model calculations for the two valence neutrons in 8He and 17B are performed via the computer code OXBASH. The long tail performance is clearly noticed in the calculated neutron and matter density distributions of these nucl

View Publication Preview PDF

1 2 ... 875 876 877 878 ... 879 880