The Influence of No-Core Fiber Length on the Sensitivity in Fiber Optic Strain Sensor

mohammad muzahim hasan; Hanan J. Taher

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Publication Date

Fri Aug 20 2021

Journal Name

Iraqi Journal Of Laser

Volume

20

Issue Number

1

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The Influence of No-Core Fiber Length on the Sensitivity in Fiber Optic Strain Sensor

optical sensor

strain

Mach-Zehnder

mohammad muzahim hasan

Hanan J. Taher

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The influence of sensing element length of no-core fiber strain sensor has been studied and experimentally demonstrated, four different lengths of 125 μm diameter no-core fiber is fused between two standard single-mode fibers and bi-directionally strained, the highest obtained sensitivity was around 16.37 pm με -1 which was exhibited in the shortest no-core fiber segment, to the best of our knowledge this is the first study of the influence of no-core fiber strain sensors length on sensor sensitivity. The proposed sensor can be used in many opto-mechanical applications such as, structural health monitoring, aerospace vehicles and airplane components monitoring.

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Publication Date

Sun Mar 07 2010

Journal Name

Baghdad Science Journal

Studying the biological activity of some Antimony Compounds with amino acids

Sana.H.

Jalil.R

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In this work four complexes of antimony were prepared ,Na[SbO(gly)2],Na[SbO(Asp)2],Na[SbO(Tyrosin)2], Na [SbO(phen alanin)2]. by reaction SbOCl with salts amino acids identifiefid these complexes by FTIR ,their conductivity was measured and also their biological activity against two types of bacteria was studied ,they were biologically active.

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Publication Date

Tue Aug 20 2024

Journal Name

مجلة جامعة ذي قار لعلوم التربية البدنية

A historical approach to the games of futsal and blind football

historical approach

sports games

futsal

blind football

zainab

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Futsal and blind football are group games of a competitive nature due to their excitement, excitement, fun, and aesthetic goals with charming artistic touches. This explains the public's passion for these two games, whether healthy people or blind people play them, to expand their vision and knowledge. About these two games, a historical approach is presented about their origins, development, and how they became globally recognized competitive sports with unified rules and world championships at various levels. Studying the origin and global spread of both futsal and blind football and identifying the most prominent developments in the rules and tools for futsal and blind football. The most important findings were that both futsal and footb

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Publication Date

Sun Jan 01 2023

Journal Name

Ath-thaqafa Al-ajnabiah

Sufi Tafsir Reconsidered: Exploring the Development of a genre, Foreign Culture

Abdali Hammood Shihan

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Publication Date

Tue Mar 30 2010

Journal Name

Iraqi Journal Of Chemical And Petroleum Engineering

Numerical study of the mixed convection flow over a square cylinder

CFD

Square cylinder

Mixed convection

Blockage ratio

Nusselt number

Sajida

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In this work, a numerical study is performed to predict the solution of two – dimensional, steady and laminar mixed convection flow over a square cylinder placed symmetrically in a vertical parallel plate. A finite difference method is employed to solve the governing differential equations, continuity, momentum, and energy equation balances. The solution is obtained for stream function, vorticity and temperature as dependent variables by iterative technique known as successive over relaxation. The flow and temperature patterns are obtained for Reynolds number and Grashof number at (Re= -50,50,100,-100) (positive or negative value refers to aidding or opposing buoyancy , +1 assisting flow, -1 opposing flow) and (102 to 105) , respective

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Publication Date

Sun Jun 30 2002

Journal Name

Iraqi Journal Of Chemical And Petroleum Engineering

The Convective Heat Transfer of Fluid Flowing Across a Vertical Plate

Forced Convection

Heat Transfer

Vertical plate

Salam K

Abdullah A

Sattar A

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Publication Date

Tue Jan 01 2019

Journal Name

Spe/aapg/seg Asia Pacific Unconventional Resources Technology Conference

Optimizing the dispersion of coal fines using Sodium Dodecyl Benzene Sulfonate

coal bed

methane

fracturing fluid

fracturing materials

coal seam gas

Upstream Oil & Gas

Bedrikovetsky

hydraulic fracturing

complex reservoir

strength

aggregation

Ur Rahman Awan F.

Alireza

Sarmad

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Coal fines are highly prone to be generated in all stages of Coal Seam Gas (CSG) production and development. These detached fines tend to aggregate, contributing to pore throat blockage and permeability reduction. Thus, this work explores the dispersion stability of coal fines in CSG reservoirs and proposes a new additive to be used in the formulation of the hydraulic fracturing fluid to keep the fines dispersed in the fluid. In this work, bituminous coal fines were tested in various suspensions in order to study their dispersion stability. The aggregation behavior of coal fines (dispersed phase) was analyzed in different dispersion mediums, including deionized-water, low and high sodium chloride solutions. Furthermore, the effect of Sodium

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Publication Date

Sat Nov 02 2013

Journal Name

Arabian Journal Of Geosciences

Facies architecture and basin development of the Qamchuqa succession, NE Iraq

Aiad Ali Hussien

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Publication Date

Fri Oct 28 2022

Journal Name

Political Sciences Journal

The Path of China-India Relations After 2013: Opportunities and Challenges

China

India

opportunities

challenges

future prospects

Prof. Dr. Mona Hani

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China and India are considered both rising countries, and both are among the world's most populous and fastest growing economies. The long-term growth of both China and India has reinforced the importance of their bilateral relationship. The relations between China and India are complex, as relations between them have undergone great changes during the past seven decades, ranging from friendship to hostility. This study proceeds from the hypothesis that the nature and path of Sino-Indian relations after 2013 are affected by several factors and variables, some of which represent opportunities, others represent challenges and obstacles. Several opportunities have contributed to the reformulation of bilateral relations in terms of mutual ga

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Publication Date

Sun Sep 30 2001

Journal Name

Iraqi Journal Of Chemical And Petroleum Engineering

Study the Characteristic Performance of Trickling Filter for Pharmaceutical Waste Treatment

Nahidh W

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Publication Date

Mon Mar 01 2021

Journal Name

Iop Conference Series: Materials Science And Engineering

Purification and activation of the Iraqi bentonite for edible oil Production

Hameed R D

Saad A

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Abstract<p>Samples of Iraqi bentonitic sediments, representing local montmorillonite brought from Traifawi region near the Syrian border. Mineralogical the samples were characterized as low grade of Ca-smectite, particle size, chemical analysis, XRD, and BET surface area analyses of the samples were carried out to examine the structure of bentonite before and after acid activation. The goal is to prepare a bleaching earth for edible oil production. Iraqi Bentonite was beneficiated and activated by series of physical and chemical steps, using 4N & 6N concentration of hydrochloric acid and at a temperature of 70-80 ° C. Surface area and pore volume of the samples were determined to assess the bleaching power</p> ... Show More

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