Fibrewise Bitopological Spaces

Y. Y. Yousif; L. A. Hussain

doi:10.21275/ART20164692

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Publication Date

Wed Feb 01 2017

Journal Name

International Journal Of Science And Research (ijsr)

Volume

6

Issue Number

2

DOI

10.21275/ART20164692

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12

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Fibrewise Bitopological Spaces

Fibrewise bitopological spaces

fibrewise closed bitopological spaces

fibrewise open bitopological spaces

fibrewise locally sliceable bitopological spaces and fibrewise locally sectionable bitopological spaces.

Y. Y. Yousif

L. A. Hussain

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We introduce and discus recent type of fibrewise topological spaces, namely fibrewise bitopological spaces, Also, we introduce the concepts of fibrewise closed bitopological spaces, fibrewise open bitopological spaces, fibrewise locally sliceable bitopological spaces and fibrewise locally sectionable bitopological spaces. Furthermore, we state and prove several propositions concerning with these concepts.

Publication Date

Sun Jul 01 2018

Journal Name

International Journal Of Engineering & Technology

Influence of Percentage Replacement of Metakaolin on Different Concrete Types Exposed to Internal Sulphate Attack

High performance concrete

internal sulphate attack

metakaolin

reactive powder concrete and self-compacted concrete.

Hadeel

Rawaa

Shatha

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This research presents an experimental investigation on the influence of metakaolin replacement percentage upon some properties of different concrete types. Three types of concrete were adopted (self- compacted concrete, high performance concrete and reactive powder concrete) all of high sulphate (SO3) percentage from the fine aggregate weight, 0.75%. Three percentages of metakaolin replacement were selected to be studied (5, 7 and 10) %. Three types of concrete properties (compressive, flexural and splitting tensile strength) were adopted to achieve better understanding for the influence of adding metakaolin.. The output results indicated that the percentage of metakaolin had a different level of positive effect on the compressive strength

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Publication Date

Tue Sep 01 2015

Journal Name

Journal Of Engineering

Experimental Study on the Effect of Using Metallic Brushes on the Charging and Discharging Time of Thermal Energy Storage Unit

Thermal storage

Phase change materials

Latent heat thermal energy storage and heat transfer enhancement.

Rafa Abbas

Aseel Khaleel

Ban Mohammed Hasan

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Phase change materials are known to be good in use in latent heat thermal energy storage (LHTES) systems, but one of their drawbacks is the slow melting and solidification processes. So that, in this work, enhancing heat transfer of phase change material is studied experimentally for in charging and discharging processes by the addition of high thermal conductive material such as copper in the form of brushes, which were added in both PCM and air sides. The additions of brushes have been carried out with different void fractions (97%, 94% and 90%) and the effect of four different air velocities was tested. The results indicate that the minimum brush void fraction gave the maximum heat transfer in PCM and reduced the time

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Publication Date

Thu Feb 02 2012

Journal Name

Education College Journal/al-mustansiriyah University

On Significance Testimator in Pareto Distribution Via Shrinkage Technique

Pareto Distribution

Shrinkage Estimation

Preliminary Test Region

Bias

Mean Squared Error and Relative Efficiency.

Maha

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In this paper, preliminary test Shrinkage estimator have been considered for estimating the shape parameter α of pareto distribution when the scale parameter equal to the smallest loss and when a prior estimate α0 of α is available as initial value from the past experiences or from quaintance cases. The proposed estimator is shown to have a smaller mean squared error in a region around α0 when comparison with usual and existing estimators.

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Publication Date

Wed Sep 01 2021

Journal Name

Baghdad Science Journal

On Comparison Study between Double Sumudu and Elzaki Linear Transforms Method for Solving Fractional Partial Differential Equations

Caputo derivatives

Fractional Calculus

Fractional Partial differential Equations

Single and double Sumudu

Elzaki transform

Hasan Shather

Sameer Qasim

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In this paper, double Sumudu and double Elzaki transforms methods are used to compute the numerical solutions for some types of fractional order partial differential equations with constant coefficients and explaining the efficiently of the method by illustrating some numerical examples that are computed by using Mathcad 15.and graphic in Matlab R2015a.

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(6)

Publication Date

Thu Jan 02 2020

Journal Name

Journal Of The College Of Languages (jcl)

The Problem of Translating Antonyms in The Holy Qur’an into German’’, in an analytical manner: Das Übersetzungsproblem der Antonyme im Heiligen Koran ins Deutsche Analytische Studie

opposition

translation

meaning

interpretation

and difference of opinions

Anatomie

Übersetzung

Bedeutung

Interpretation und Meinungenunterschied

Hilal Abdul Hamza

Abdulnassir Neamah

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The present study is entitled “Problems of Translating Holy Qur’an Antonyms into German: An Analytical Study”. It discusses some of the problems of translating Holy Qur’an verses that contain words so opposite in meaning to another word. The main concern of the study stresses some of the errors in translating the oppositeness of certain words of Holy Qur’an from Arabic into other languages like German, a problem that can be traced back to the fact that such words may have two opposites in meaning, one is considered and the other is completely neglected.

The errors in translating al Qur’an Antonyms can be summarized for several reasons: literal translation, ignorance of the different view

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Publication Date

Tue May 01 2018

Journal Name

Journal Of Engineering

Prediction of the Effect of Using Stone Column in Clayey Soil on the Behavior of Circular Footing by ANN Model

stone column

circular footing

ground improvement

artificial neural network

bending moment

and shear forces.

Omar Khaleel Ismael

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Shallow foundations are usually used for structures with light to moderate loads where the soil underneath can carry them. In some cases, soil strength and/or other properties are not adequate and require improvement using one of the ground improvement techniques. Stone column is one of the common improvement techniques in which a column of stone is installed vertically in clayey soils. Stone columns are usually used to increase soil strength and to accelerate soil consolidation by acting as vertical drains. Many researches have been done to estimate the behavior of the improved soil. However, none of them considered the effect of stone column geometry on the behavior of the circular footing. In this research, finite ele

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(3)

Publication Date

Wed Oct 30 2024

Journal Name

Iraqi Journal Of Science

Determining the Relationship between the Crescent Visibility Factors and the Coordinates of the Sun and Moon

Visibility factors

coordinates of the sun and the moon

sun-moon elongation

orbit mechanics

Mohammed Y.

Fouad M.

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The study of the relationship between the coordinates of the sun and the moon with the crescent visibility factors has not been previously treated in a detailed and accurate way in research and previous studies, despite its religious importance. Accordingly, this paper aims to study the relationship between the crescent visibility factors (age, lag time, elongation (ARCL), arc of vision or relative altitude (ARCV), relative azimuth (DAZ), and crescent width (W), with coordinates of the sun and the moon), and how it varies during the day of the crescent's observation. In this paper, Matlab programs were designed to calculate the ecliptic sun and moon coordinates (λ, β) and in the presence of all perturbation impacts (planets), th

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(1)

Publication Date

Mon Jan 01 2024

Journal Name

Anais Da Academia Brasileira De Ciências

Morphological study for Accipitrid birds (Accipitridforms, Accipitridae) in Iraq; part two

A part two of Accipitridae Family members that belong to three genera: Circus

Gyps

and Neophron were documented as morphometrics

distribution ranges

and conservation status were reviewed and comprehensively discussed. A total of 29 voucher specimens belong to six species which are conserved in the “Iraq Natural History Research Center and Museum INHM” as follow: Marsh Harrier Circus aeruginosus (Linnaeus

1758)

Hen Harrier Circus cyaneus (Linnaeus

1766)

Montagus Harrier Circus pygargus (Linnaeus

1758)

Pallid Harrier Circus macrourus (Gmelin

1770)

Egyptian vulture Neophron percnopterus (Linnaeus

1758)

and Griffon vulture Gyps fulfus (Hablitz

1783). The results revealed significant criteria about near threatened NT species IUCN and Birdlife International listed as Pallid Harrier Circus macrourus

and Endangered (EN) species as Egyptian vulture Neophron percnopterus globally decreasing population trend.

HIND D.

KHALIDA I.

AFKAR M.

SUHAD Y.

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Publication Date

Mon Nov 01 2010

Journal Name

Al-nahrain Journal Of Science

Chemical Elements Diffusion in the Solar Interior

The standard solar model and equation of state have been used to study relative diffusion of Hydrogen and Helium in the present time for solar interior

as a function of distance and depth from the center of the star. The effects of temperature and density on diffusion velocity for these chemical elements have been explaned. It is found that heat flow which is arising from these reactions leads to an increase in helium diffusion velocity

while the temperature and density leading to a decrease in Hydrogen diffusion velocity. This means that Hydrogen behaves inversely with that for helium does through these reactions. Accordingly

diffusion percentages for Hydrogen

Helium and other Heavy Elements could be determined for the main sequence stars and white dwarf stars.

H.

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Publication Date

Wed Jan 23 2019

Journal Name

Journal Of Accounting And Financial Studies ( Jafs )

Refused Derived Fuel RDF and its role in reducing production

Recycling in Iraq

Refused derived fuel (RDF) Technology change

Kiazen target cost and reducing production costs.

سس

Recycling in Iraq

Refused derived fuel (RDF) Technology change

Kiazen target cost and reducing production costs

صدى مدحت

أ.م.د. فيحاء عبدالله

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Refuse derived fuel (RDF) is considered one of the most important types of low cost thermal energy which can be tapped in the industry, especially the cement industry in particular being the need of high thermal energy during the production processes, and in this paper we have implemented the use of a derivative of the fuel RDF as a substitute for gasoline , to reduce production costs and thereby achieve production efficiency, and the methodology used in this research statistical analysis as well as the use of the cost of kaizen target for the purpose of reducing costs and achieve production efficiency, and this has reduced the cost total cement production by which led to reduce total costs of cement production by 8.4% and an incre

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