Comparing Bayes Estimators With others , for scale parameter and Reliability function of two parameters Frechet distribution

ميسون حميد فرج

doi:10.33095/jeas.v22i88.571

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Publication Date

Fri Apr 01 2016

Journal Name

Journal Of Economics And Administrative Sciences

Volume

22

Issue Number

88

DOI

10.33095/jeas.v22i88.571

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Comparing Bayes Estimators With others , for scale parameter and Reliability function of two parameters Frechet distribution

مقدر الإمكان الأعظم (MLE)

مقدر Bayes الأول

مقدر Bayes الثاني.

Maximum likelihood estimator (MLE) Bayes (1) and Bayes (2) Mean square error (E) is shape parameter is scale parameter under Quadratic loss function under General Entropy loss function

ميسون حميد فرج

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Publication Date

Sat Jul 01 2023

Journal Name

Electric Power Systems Research

Analytical and measurement-based wideband two-port modeling of DC-DC converters for electromagnetic transient studies

Black-box models

DC-DC converters

Frequency domain analysis

Numerical Laplace transform

Two-port models

Wideband representation

H.

P.

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Power-electronic converters are essential elements for the effective interconnection of renewable energy sources to the power grid, as well as to include energy storage units, vehicle charging stations, microgrids, etc. Converter models that provide an accurate representation of their wideband operation and interconnection with other active and passive grid components and systems are necessary for reliable steady state and transient analyses during normal or abnormal grid operating conditions. This paper introduces two Laplace domain-based approaches to model buck and boost DC-DC converters for electromagnetic transient studies. The first approach is an analytical one, where the converter is represented by a two-port admittance model via mo

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(4)

Publication Date

Sat Jun 30 2001

Journal Name

Iraqi Journal Of Chemical And Petroleum Engineering

Recovery of Vanadium from Scale Residues of Oil-Fired Power Stations

Abbas H

Abdul-Razak H

Khalid M

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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

Sat Apr 01 2023

Journal Name

Baghdad Science Journal

A Theoretical Study of the Docking of Medicines with some Proteins

Lipophilicity

amino drugs

HOMO

LUMO

Ammar Abdulsattar

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A set of ten drug compounds containing an amino group in the structure were determined theoretically. The parameters were entered into a model to forecast the optimal values of practical (log P) medicinal molecules. The drugs were evaluated theoretically using different types of calculations which are AM1, PM3, and Hartree Fock at the basis set (HF/STO-3G). The Physico-chemical data like (entropy, total energy, Gibbs Free Energy,…etc were computed and played an important role in the predictions of the practical lipophilicity values. Besides, Eigenvalues named HOMO and LUMO were determined. Linearity was shown when correlated between the experimental data with the evaluated physical properties. The statistical analysis was used to analy

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(7)

(4)

Publication Date

Sat Dec 02 2017

Journal Name

Al-khwarizmi Engineering Journal

Mathematical Modeling for the Clarifier Units and Turbidity Parameters in AL-KARAMA Treatment Plant

Keywords: Performance evaluation

pH

Alkalinity

Mathematic model

Simulation

Hayder Mohammed

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The high cost of chemical analysis of water has necessitated various researches into finding alternative method of determining portable water quality. This paper is aimed at modelling the turbidity value as a water quality parameter. Mathematical models for turbidity removal were developed based on the relationships between water turbidity and other water criteria. Results showed that the turbidity of water is the cumulative effect of the individual parameters/factors affecting the system. A model equation for the evaluation and prediction of a clarifier’s performance was developed:

Model: T = T₀(-1.36729 + 0.037101∙10^λpH + 0.048928t + 0.00741387∙alk)

The developed model will aid the predictiv

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Publication Date

Sat Dec 01 2018

Journal Name

Al Mustansiriyah Journal Of Pharmaceutical Sciences

Effect of Lead Exposure on Some Biochemical Parameter of Battery Factory and Benzene Fuel Stations Workers

Hind Suhail Abdulhay

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Publication Date

Tue Mar 01 2011

Journal Name

Journal Of Economics And Administrative Sciences

Measurement and analysis of the production function of the transport sector in the Iraqi economy

مناهل مصطفى

غفران حاتم

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Transportation Sector classified as one of the services sectors which is without the production activities cannot be complete its rule. Is act asmoving actions which operate at production and non production goals for the organization and individuals insides the country and with others, that is why this sector act as one of the main which is occupied an important status on the way the economic activities and on the level of the economic institutions the transportation work on transforming all the commodities and products from productions locations to consumption location then its effect the productivity process and create the location utility and on the level of economic it considered as one of the economic supportive structure an

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Publication Date

Wed Nov 01 2017

Journal Name

Journal Of Engineering

Performance evaluation of Sequencing Batch Reactor and Conventional Wastewater Treatment Plant based on Reliability assessment

performance

reliability

sequencing batch reactor

Al-Rustamiya

wastewater treatment plant.

Basim H.

Shatha Abdulrazzak

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Baghdad city has been faced numerous issues related to freshwater environment deteriorations due to many reasons, mainly was the discharge of wastewater without adequate treatment. Al- Rustamiya Wastewater Treatment Plant (WWTP) have been constructed among many plants in Baghdad city to reduce the amount of wastewater discharged into natural environment and its subsequent adverse effects. This study was conducted to evaluate the performance of the plant which consist of a conventional activated sludge (CAS) and sequencing batch reactors (SBR) systems as secondary treatment units and its ability to meet Iraqi specifications. A reliability level determination and analysis also were conducted to find the plant's stability and its capabi

Publication Date

Wed Nov 01 2017

Journal Name

Journal Of Engineering

Performance Evaluation of Sequencing Batch Reactor and Conventional Wastewater Treatment Plant based on Reliability assessment

performance

reliability

sequencing batch reactor

Al-Rustamiya

wastewater treatment plant.

Basim Hussein

Shatha Abdulrazzak

...Show More Authors

Baghdad city has been faced numerous issues related to freshwater environment deteriorations due to many reasons, mainly was the discharge of wastewater without adequate treatment. Al-Rustamiya Wastewater Treatment Plant (WWTP) have been constructed among many plants in Baghdad city to reduce the amount of wastewater discharged into natural environment and its subsequent adverse effects. This study was conducted to evaluate the performance of the plant which consist of a conventional activated sludge (CAS) and sequencing batch reactors (SBR) systems as secondary treatment units and its ability to meet Iraqi specifications. A reliability level determination and analysis also were conducted to find the plant's stability an

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Publication Date

Tue Jan 27 2026

Journal Name

Journal Of Baghdad College Of Dentistry

Salivary gland tumors: A review of 171 cases, with particular reference to histological types, site, age and gender distribution

Faris I

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Background: Salivary tumors are uncommon, being of low incidence worldwide. This study aimed to assess cases collected in this series of salivary gland tumors in regard to histopathological typing, in relation to age, site and gender. Materials and methods: This is a retrospective study; cases were collected from public and private laboratories. A total number of 171 cases were collected. The slides were reviewed and reclassified for histopathological typing according to WHO classification 2005. Results: Benign tumors were more common than malignant tumors. The most common histological type was benign mixed tumor, followed by Warthin’s tumor. The most common malignant tumor was adenoid cystic carcinoma. One hundred twenty three cases ou

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