A Solution of Second Kind Volterra Integral Equations Using Third Order Non-Polynomial Spline Function

Sarah H. Harbi; Mohammed Ali Murad; Saba N. Majeed

doi:10.21123/bsj.2015.12.2.406-411

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Publication Date

Sun Jun 07 2015

Journal Name

Baghdad Science Journal

Volume

12

Issue Number

2

DOI

10.21123/bsj.2015.12.2.406-411

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A Solution of Second Kind Volterra Integral Equations Using Third Order Non-Polynomial Spline Function

Volterra integral equation

non-polynomial spline function

cubic spline function.

Sarah H. Harbi

Mohammed Ali Murad

Saba N. Majeed

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In this paper, third order non-polynomial spline function is used to solve 2nd kind Volterra integral equations. Numerical examples are presented to illustrate the applications of this method, and to compare the computed results with other known methods.

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Publication Date

Sun Oct 01 2023

Journal Name

Applied Sciences

Multiobjective Optimization of Stereolithography for Dental Bridge Based on a Simple Shape Model Using Taguchi and Response Surface Methods

3D printing

multiobjective optimization

response surface method

stereolithography

Taguchi

Tiba Raed

Nazar Kais

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Stereolithography (SLA) has become an essential photocuring 3D printing process for producing parts of complex shapes from photosensitive resin exposed to UV light. The selection of the best printing parameters for good accuracy and surface quality can be further complicated by the geometric complexity of the models. This work introduces multiobjective optimization of SLA printing of 3D dental bridges based on simple CAD objects. The effect of the best combination of a low-cost resin 3D printer’s machine parameter settings, namely normal exposure time, bottom exposure time and bottom layers for less dimensional deviation and surface roughness, was studied. A multiobjective optimization method was utilized, combining the Taguchi me

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Publication Date

Sat Jan 13 2018

Journal Name

Journal Of Engineering

Zn(II) Removal from Wastewater by Electrocoagulation/Flotation Method using New Configuration of a Split-Plate Airlift Electrochemical Reactor

wastewater treatment

zinc ions

electrocoagulation/flotation

split-plate

airlift reactor.

Saad H.

Fatma Dheif

Ruaa Fadhil

Alaa Ibrahim

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In this paper, split-plate airlift electrochemical reactor as an apparatus with new configuration for wastewater treatment was provided. Two aluminum plates were fixed inside the reactor and present two functions; first it works as split plates for internal loop generation of the airlift system (the zone between the two plates acts as riser while the other two zones act as downcomer) and second it works as two electrodes for electrocoagulation process. Simulated wastewater contaminated with zinc ions was used to test the performance of this apparatus for zinc removal by studying the effect of different experimental variables such as initial concentration of zinc (50-800 ppm), electrical current density (2.67-21.4 mA/cm²), init

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Publication Date

Wed Nov 23 2022

Journal Name

Dental Hypotheses

Remineralization of Dentine Caries Using Moringa Oleifera Based Nano-Silver Fluoride: A Single-Blinded, Randomized, Active-Controlled Clinical Trial

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Wed Nov 27 2024

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International Journal Of Integrated Engineering

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Fri Dec 15 2023

Journal Name

Iraqi Journal Of Laser

D-shape Optical Fiber Development and Enhancement as a Refractive Indices Sensor Using Surface Plasmon Resonance

D-shaped fiber

fiber sensor

refractive index

gold nano-layer

surface plasmon

Hiba Kh. Abbas*

Zainab F. Mahdi

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This article showcases the development and utilization of a side-polished fiber optic sensor that can identify altered refractive index levels within a glucose solution through the investigation of the surface Plasmon resonance (SPR) effect. The aim was to enhance efficiency by means of the placement of a 50 nm-thick layer of gold at the D-shape fiber sensing area. The detector was fabricated by utilizing a silica optical fiber (SOF), which underwent a cladding stripping process that resulted in three distinct lengths, followed by a polishing method to remove a portion of the fiber diameter and produce a cross-sectional D-shape. During experimentation with glucose solution, the side-polished fiber optic sensor revealed an adept detection

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Publication Date

Wed Jan 16 2019

Journal Name

Applied Physics A

Detecting the thermoplasmonic effect using ellipsometry parameters for self-assembled gold nanoparticles within a polydimethylsiloxane matrix

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Sun Oct 19 2025

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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

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

Tue Jan 01 2019

Journal Name

The 53rd U.s. Rock Mechanics/geomechanics Symposium

Using an analytical model to predict collapse volume during drilling: A case study from southern Iraq

A.K.

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