Monte Carlo Simulation for Bremsstrahlung Buildup Factor Produced by Absorption of Y-91 Beta Rays

Mazin M. Elias

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Publication Date

Sat Jan 01 2011

Journal Name

Iraqi Journal Of Physics

Volume

9

Issue Number

14

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Monte Carlo Simulation for Bremsstrahlung Buildup Factor Produced by Absorption of Y-91 Beta Rays

Monte Carlo Simulation

Bremsstrahlung

Buildup Factor

Mazin M. Elias

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This paper presents the first data for bremsstrahlung buildup factor (BBUF) produced by the complete absorption of Y-91 beta particles in different materials via the Monte Carlo simulation method. The bremsstrahlung buildup factors were computed for different thicknesses of water, concrete, aluminum, tin and lead. A single relation between the bremsstrahlung buildup factor BBUF with both the atomic number Z and thickness X of the shielding material has been suggested.

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Publication Date

Thu Aug 01 2024

Journal Name

Water Practice & Technology

Artificial neural network and response surface methodology for modeling oil content in produced water from an Iraqi oil field

Saja Mohsen

Noor Mohsen

Sura Jasem Mohammed

Ahmed Abdulrazzaq

Ali Dawood

Laith Majeed

Maytham Khalaf

Hamza Abbas

Haydar Muhamad

Malik M.

Phuoc-Cuong

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ABSTRACT<p>The majority of the environmental outputs from gas refineries are oily wastewater. This research reveals a novel combination of response surface methodology and artificial neural network to optimize and model oil content concentration in the oily wastewater. Response surface methodology based on central composite design shows a highly significant linear model with P value <0.0001 and determination coefficient R2 equal to 0.747, R adjusted was 0.706, and R predicted 0.643. In addition from analysis of variance flow highly effective parameters from other and optimization results verification revealed minimum oily content with 8.5 ± 0.7 ppm when initial oil content 991 ppm, tempe</p> ... Show More

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Publication Date

Thu Feb 01 2018

Journal Name

Journal Of Economics And Administrative Sciences

Comparison Some Robust Estimators for Estimate parameters logistic regression model to Binary Response – using simulation)).

الانحدار اللوجستي

البيانات الثنائية

مقدرات الامكان الاعظم الحصينة الموزونة (WMLE)

مقدرات المسافة التربيعية الحصينة (QDE)

المشاهدات الشاذة.

Logistic Regression

Binary data

the Robust weighted maximum likelihood estimators(WMLE)

Quadratic Distance Estimators(QDE)

Outlier Observations.

ايمان حسن

ضمياء حامد

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The logistic regression model of the most important regression models a non-linear which aim getting estimators have a high of efficiency, taking character more advanced in the process of statistical analysis for being a models appropriate form of Binary Data.

Among the problems that appear as a result of the use of some statistical methods I

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Publication Date

Wed Jan 30 2013

Journal Name

Al-kindy College Medical Journal

Electrocardiographic changes among beta-thalassemic major patients in ibn al-baladi thalassemia center-Baghdad

Electrocardiography

Betathalassemia major

Suhad Jassim

FarisH.

Mousa Qasim

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Background :Thalassemia is an autosomal
disease of the haemoglobin. Two types of
thalassemia are recognized: thalassemia major
and thalassemia intermedia.
The most serious cardiac complication in
thalassemia major is due to multiple blood
transfusions rather than the disease itself, which
is due to iron overload.
Cardiomyopathy is the most common cardiac
defect that occurs with iron overload. Pricarditis,
congestive heart failure and arrhythmias are due
to hemosidrosis and chronic aneamia.
Aim of the study: to demonstrate the prevalence
and types of electrocardiographic changes among
thalassemic patients with aged over ten years old.

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Publication Date

Thu Apr 18 2019

Journal Name

Al-kindy College Medical Journal

Iron Chelation Therapy in Sickle Cell/Beta Thalassemia Syndrome, a 2 years’ Extension Study

Hayder

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(4)

Publication Date

Fri Jan 01 2016

Journal Name

International Journal Of Mathematics Trends And Technology (ijmtt)

Some Statistical Properties of the Solutions of a System of two dimensional Integral Equations contains Beta distribution

Ahmed E. Abdul-Nabi

Mohammad Wahdan

Areej Salah

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Publication Date

Thu Jun 30 2011

Journal Name

Iraqi Journal Of Chemical And Petroleum Engineering

CRACKING ACTIVITY OF PREPARED Y-ZEOLITE CATALYST USING CUMENE ON FLUIDIZED BED REACTOR

Fluid catalytic cracking

cumene cracking

benzene production

Abdul Halim

Rawa

Karim

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The catalytic activity of faujasite type NaY catalysts prepared from local clay (kaolin) with different Si/Al ratio was studied using cumene cracking as a model for catalytic cracking process in the temperature range of 450-525° C, weight hourly space velocity (WHSV) of 5-20 h1, particle size ≤75μm and atmospheric pressure. The catalytic activity was investigated using experimental laboratory plant scale of fluidized bed reactor.
It was found that the cumene conversion increases with increasing temperature and decreasing WHSV. At 525° C and WHSV 5 h-1, the conversion was 42.36 and 35.43 mol% for catalyst with 3.54 Si/Al ratio and Catalyst with 5.75 Si/Al ratio, respectively, while at 450° C and at the same WHSV, the conversion w

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Publication Date

Sat Feb 27 2021

Journal Name

Journal Of Engineering

Design and Simulation of a controller for Double Fed Induction Generator turbine Utilized Solar Up Draft Tower

Renewable energy

Solar updraft tower

DFIG

PI controller

vector controller

MATLAB/Simulink

Mayada Yousif

Fadhil Abbas

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This paper introduces a complete design and simulation of a controller for the double fed induction generator (DFIG) turbine. The work also included the solar updraft tower (SUT) design to supply Al-Mahmoudia hospital in Baghdad/Iraq. The design includes the daily average load estimation, annual solar irradiance and, temperature monitoring, and logging.

According to the data obtained from the Ministry of Science and Technology, Baghdad has low wind speed. Therefore, the (SUT) has been designed to generate electrical power depending on the difference between the external and internal air temperature. The temperature difference will generate a suitable airspeed to drive the wind turbine, connected to the proposed (DFIG) generators

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(1)

Publication Date

Mon Jan 13 2020

Journal Name

Day 3 Wed, January 15, 2020

Numerical Simulation of Gas Lift Optimization Using Genetic Algorithm for a Middle East Oil Field: Feasibility Study

Constrained optimization

Gas lifts

Gases

Gasoline

Genetic algorithms

Life cycle

Natural gas fields

Numerical models

Offshore oil well production

Oil fields

Mustafa

Mofazzal

Omar

Akim

Abbas

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<p>Gas-lift technique plays an important role in sustaining oil production, especially from a mature field when the reservoirs’ natural energy becomes insufficient. However, optimally allocation of the gas injection rate in a large field through its gas-lift network system towards maximization of oil production rate is a challenging task. The conventional gas-lift optimization problems may become inefficient and incapable of modelling the gas-lift optimization in a large network system with problems associated with multi-objective, multi-constrained, and limited gas injection rate. The key objective of this study is to assess the feasibility of utilizing the Genetic Algorithm (GA) technique to optimize t</p> ... Show More

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(15)

(8)

Publication Date

Tue Jan 01 2019

Journal Name

Ieee Access

Implementation of Univariate Paradigm for Streamflow Simulation Using Hybrid Data-Driven Model: Case Study in Tropical Region

Yaseen Z.M.

Ameen Mohammed Saleh

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(90)

(89)

Publication Date

Sun May 22 2005

Journal Name

University Of Technology

Results Of The Factor Group CF(G,Z)/R(G)

Niran

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