Constructing fuzzy linear programming model with practical application

اسيل سمر محمد

doi:10.33095/jeas.v21i83.656

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Publication Date

Mon Jun 01 2015

Journal Name

Journal Of Economics And Administrative Sciences

Volume

21

Issue Number

83

DOI

10.33095/jeas.v21i83.656

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Constructing fuzzy linear programming model with practical application

أنموذج البرمجة الخطية الضبابية - رقم ضبابي رباعي - برنامج (WIN QSB) - الرتب الحصينة - العمليات الجبرية - دالة الانتماء

Fuzzy linear programming model

trapezoidal fuzzy number

WIN QSB

Robust α-cut

Algebric Operations

Membership function .

اسيل سمر محمد

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This paper deals with constructing a model of fuzzy linear programming with application on fuels product of Dura- refinery , which consist of seven products that have direct effect ondaily consumption . After Building the model which consist of objective function represents the selling prices ofthe products and fuzzy productions constraints and fuzzy demand constraints addition to production requirements constraints , we used program of ( WIN QSB ) to find the optimal solution

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Publication Date

Fri Apr 24 2020

Journal Name

Modeling Earth Systems And Environment

Assessment of reservoir properties and Buckles model for Rumaila Formation in Ahdeb oil field, Central Iraq

Buraq Adnan

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Thu Jun 01 2017

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Nuclear Physics A

Alpha-cluster preformation factor within cluster-formation model for odd-A and odd–odd heavy nuclei

Saad M.

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Publication Date

Sat Oct 02 2021

Journal Name

International Journal Of Nonlinear Analysis And Applications

Using the wavelet analysis to estimate the nonparametric regression model in the presence of associated errors

Discrete Wavelet Transformation

Threshold Value

Wavelet Shrinkage

Correlated Error

Saad Kadem

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Abstract The wavelet shrink estimator is an attractive technique when estimating the nonparametric regression functions, but it is very sensitive in the case of a correlation in errors. In this research, a polynomial model of low degree was used for the purpose of addressing the boundary problem in the wavelet reduction in addition to using flexible threshold values in the case of Correlation in errors as it deals with those transactions at each level separately, unlike the comprehensive threshold values that deal with all levels simultaneously, as (Visushrink) methods, (False Discovery Rate) method, (Improvement Thresholding) and (Sureshrink method), as the study was conducted on real monthly data represented in the rates of theft crimes f

Publication Date

Mon Jun 01 2020

Journal Name

Iop Conference Series: Materials Science And Engineering

On Bayesian Estimation of System Reliability in Stress – Strength Model Based on Generalized Inverse Rayleigh Distribution

Iman Ghaji

Bayda Atiya

Abbas N.

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Abstract<p>The parameter and system reliability in stress-strength model are estimated in this paper when the system contains several parallel components that have strengths subjects to common stress in case when the stress and strengths follow Generalized Inverse Rayleigh distribution by using different Bayesian estimation methods. Monte Carlo simulation introduced to compare among the proposal methods based on the Mean squared Error criteria.</p>

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Publication Date

Sun Oct 19 2025

Journal Name

Lecture Notes In Networks And Systems

Using Artificial Intelligence in Analyzing Historical Documents: The Egyptian Libyan Border as a Model (1911–1951)

Rihab Hassan

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Publication Date

Sat Sep 30 2017

Journal Name

College Of Islamic Sciences

The ignorant poem and the body language: (The sieve of the Sikkhar sieve is a model)

الـدُّكتور أحمــــَـد مُوســى

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This study is marked by: The ignorant poem and body language
Its main objective is to reveal the manifestations of this language in the text mentioned, and accordingly, the sieve poem has been read semantic (semantic) and hermeneutic, revealing the poet's ability to employ symbols and signals (body language) in the poem chosen for this purpose; The existence of such language in pre-Islamic poetry. After a long reflection and reading, the signs and symbols of the physical movement of the body, and its feminine and aesthetic manifestations were identified, and this was achieved through the use of modern critical methodologies that directly affect this language. The study consisted of an introduction and three topics, followed by t

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Publication Date

Sun Jun 23 2019

Journal Name

American Rock Mechanics Association

Using an Analytical Model to Predict Collapse Volume During Drilling: A Case Study from Southern Iraq

reservoir geomechanics

strength

Rock mechanics

borehole collapse

Reservoir Characterization

Upstream Oil & Gas

pore pressure

Wellbore Design

horizontal stress

Drilling

Ahmed K.

Asmaa

Usama

Ralph E.

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Zubair Formation is one of the richest petroleum systems in Southern Iraq. This formation is composed mainly of sandstones interbedded with shale sequences, with minor streaks of limestone and siltstone. Borehole collapse is one of the most critical challenges that continuously appear in drilling and production operations. Problems associated with borehole collapse, such as tight hole while tripping, stuck pipe and logging tools, hole enlargement, poor log quality, and poor primary cement jobs, are the cause of the majority of the nonproductive time (NPT) in the Zubair reservoir developments. Several studies released models predicting the onset of borehole collapse and the amount of enlargement of the wellbore cross-section. However, assump

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Publication Date

Wed Oct 17 2018

Journal Name

Journal Of Economics And Administrative Sciences

Comparison Between the Methods Estimate Nonparametric and Semiparametric Transfer Function Model in Time Series Using Simulation

Munaf Yousif

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Publication Date

Fri Mar 04 2022

Journal Name

Environmental Science And Pollution Research

Geographically weighted regression model for physical, social, and economic factors affecting the COVID-19 pandemic spreading

Ihsan Abbas

Moheb Kamil

Mustafa A.

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Abstract<p>This study aims to analyze the spatial distribution of the epidemic spread and the role of the physical, social, and economic characteristics in this spreading. A geographically weighted regression (GWR) model was built within a GIS environment using infection data monitored by the Iraqi Ministry of Health records for 10 months from March to December 2020. The factors adopted in this model are the size of urban interaction areas and human gatherings, movement level and accessibility, and the volume of public services and facilities that attract people. The results show that it would be possible to deal with each administrative unit in proportion to its circumstances in light of the factors that appe</p> ... Show More

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Publication Date

Tue Mar 26 2019

Journal Name

International Journal Of Mathematics And Mathematical Sciences

Stability and Bifurcation of a Prey-Predator-Scavenger Model in the Existence of Toxicant and Harvesting

Huda

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In this paper a prey-predator-scavenger food web model is proposed and studied. It is assumed that the model considered the effect of harvesting and all the species are infected by some toxicants released by some other species. The stability analysis of all possible equilibrium points is discussed. The persistence conditions of the system are established. The occurrence of local bifurcation around the equilibrium points is investigated. Numerical simulation is used and the obtained solution curves are drawn to illustrate the results of the model. Finally, the nonexistence of periodic dynamics is discussed analytically as well as numerically.

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