Determination of Optimum Mechanical Drilling Parameters for an Iraqi
Field with Regression Model

Dahlia A. Al-Obaidi

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Publication Date

Thu Dec 12 2013

Journal Name

Iraqi Journal Of Science

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Determination of Optimum Mechanical Drilling Parameters for an Iraqi Field with Regression Model

Drilling

Optimization

Rate of Penetration

Dahlia A. Al-Obaidi

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Publication Date

Sat Jan 01 2022

Journal Name

Journal Of The Mechanical Behavior Of Materials

Time and finance optimization model for multiple construction projects using genetic algorithm

Musaab Falih

Sawsan Rasheed

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AbstractConstruction contractors usually undertake multiple construction projects simultaneously. Such a situation involves sharing different types of resources, including monetary, equipment, and manpower, which may become a major challenge in many cases. In this study, the financial aspects of working on multiple projects at a time are addressed and investigated. The study considers dealing with financial shortages by proposing a multi-project scheduling optimization model for profit maximization, while minimizing the total project duration. Optimization genetic algorithm and finance-based scheduling are used to produce feasible schedules that balance the finance of activities at any time w ... Show More

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(5)

Publication Date

Sat Jan 01 2022

Journal Name

Journal Of The Mechanical Behavior Of Materials

A spherical fuzzy AHP model for contractor assessment during project life cycle

Hayder Ghazi

Kadhim Raheim

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AbstractMeasurement of construction performance is essential to a clear image of the present situation. This monitoring by the management team is necessary to identify locations where performance is exceptionally excellent or poor and to identify the primary reasons so that the lessons gained may be exported to the firm and its progress strengthened. This research attempts to construct an integrated mathematical model utilizing one of the recent methodologies for dealing with the fuzzy representation of experts’ knowledge and judgment considering hesitancy called spherical fuzzy analytic hierarchy process (SFAHP) method to assess the contractor’s performance per the project performance pa ... Show More

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Publication Date

Sun Sep 01 2013

Journal Name

2013 Ieee International Conference On Circuits And Systems (iccas)

Improved undetected error probability model for JTEC and JTEC-SQED coding schemes

Wameedh N.

K.

S. J.

Fakhrul Z.

Yehea I.

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The undetected error probability is an important measure to assess the communication reliability provided by any error coding scheme. Two error coding schemes namely, Joint crosstalk avoidance and Triple Error Correction (JTEC) and JTEC with Simultaneous Quadruple Error Detection (JTEC-SQED), provide both crosstalk reduction and multi-bit error correction/detection features. The available undetected error probability model yields an upper bound value which does not give accurate estimation on the reliability provided. This paper presents an improved mathematical model to estimate the undetected error probability of these two joint coding schemes. According to the decoding algorithm the errors are classified into patterns and their decoding

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Publication Date

Thu Nov 17 2022

Journal Name

Journal Of Information And Optimization Sciences

Hybrid deep learning model for Arabic text classification based on mutual information

Farah A.

Nada A. Z.

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(7)

Publication Date

Mon May 04 2020

Journal Name

Offshore Technology Conference

Hydrate Equilibrium Model for Gas Mixtures Containing Methane, Nitrogen and Carbon Dioxide

gas hydrate

cavity

equilibrium condition

flow assurance

modeling & simulation

hydrate equilibrium condition

upstream oil & gas

cage occupancy

hydrate

gas mixture

Dhifaf Jaafar

Omar

Stefan

Maxim

Callum

Ahmed

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AbstractGas hydrate formation is considered one of the major problems facing the oil and gas industry as it poses a significant threat to the production, transportation and processing of natural gas. These solid structures can nucleate and agglomerate gradually so that a large cluster of hydrate is formed, which can clog flow lines, chokes, valves, and other production facilities. Thus, an accurate predictive model is necessary for designing natural gas production systems at safe operating conditions and mitigating the issues induced by the formation of hydrates. In this context, a thermodynamic model for gas hydrate equilibrium conditions and cage occupancies of N2 + CH4 and N2 + CO4 gas mix ... Show More

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(8)

Publication Date

Tue Apr 26 2011

Journal Name

Evolutionary Algorithms

Variants of Hybrid Genetic Algorithms for Optimizing Likelihood ARMA Model Function and Many of Problems

Basad

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(1)

Publication Date

Mon Jul 05 2010

Journal Name

Evolutionary Algorithms

Variants of Hybrid Genetic Algorithms for Optimizing Likelihood ARMA Model Function and Many of Problems

Basad Ali Hussain

Rawa’a Dawoud

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Optimization is essentially the art, science and mathematics of choosing the best among a given set of finite or infinite alternatives. Though currently optimization is an interdisciplinary subject cutting through the boundaries of mathematics, economics, engineering, natural sciences, and many other fields of human Endeavour it had its root in antiquity. In modern day language the problem mathematically is as follows - Among all closed curves of a given length find the one that closes maximum area. This is called the Isoperimetric problem. This problem is now mentioned in a regular fashion in any course in the Calculus of Variations. However, most problems of antiquity came from geometry and since there were no general methods to solve suc

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Publication Date

Sat Jun 04 2022

Journal Name

Journal Of Inorganic And Organometallic Polymers And Materials

Improving the Mechanical Properties, Roughness, Thermal Stability, and Contact Angle of the Acrylic Polymer by Graphene and Carbon Fiber Doping for Waterproof Coatings

Tabarak M.

Seenaa I.

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(20)

Publication Date

Thu Sep 01 2016

Journal Name

Journal Of Engineering

Correction Factor for Methods of Installation of Piles Group in Sandy Iraqi Soils

methods of installation

number of piles

correction factor

experimental work.

A’amal Abdul Ghani

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Many problems are facing the installation of piles group in laboratory testing and the errors in results of load and settlement are measured experimentally may be happened due to select inadequate method of installation of piles group. There are three main methods of installation in-flight, pre-jacking and hammering methods. In order to find the correction factor between these methods the laboratory model tests were conducted on small-scale models. The parameters studied were the methods of installation (in-flight, pre-jacking and hammering method), the number of piles and in sandy soil in loose state. The results of experimental work show that the increase in the number of piles value led to increase in load carrying ca

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Publication Date

Thu Nov 17 2016

Journal Name

International Journal Of Computer Applications

Colour Recognizing Robot Arm Equipped with a CMOS Camera and an FPGA

Robot arm

sopc builder

colour reconition

FPGA

CMOS camera

Asma

Dina

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In this paper a system is designed on an FPGA using a Nios II soft-core processor, to detect the colour of a specific surface and moving a robot arm accordingly. The surface being detected is bounded by a starting mark and an ending mark, to define the region of interest. The surface is also divided into sections as rows and columns and each section can have any colour. Such a system has so many uses like for example warehouses or even in stores where their storing areas can be divided to sections and each section is coloured and a robot arm collects objects from these sections according to the section’s colour also the robot arm can organize objects in sections according to the section’s colour.

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