doi:10.24996/ijs.2023.64.5.21

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Publication Date

Tue May 30 2023

Journal Name

Iraqi Journal Of Science

Volume

64

Issue Number

5

DOI

10.24996/ijs.2023.64.5.21

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Analytical Investigation of Electroosmotically Regulated Peristaltic Propulsion of Cu-water Nanofluid Through a Microtube

Electroosmosis

Peristalsis

Nanofluid

Cu-Water

Exact solutions

Adil Wahid

Noreen Sher

Dharmendra

Javaria

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The purpose of this investigation is to determine and analyze the fluid inertia of electroosmotic flow on the Cu-water nanofluids by peristaltic transport. Fluid flow properties and heat transfer characteristics are studied for aqueous ionic nanofluids through a vertical microtube of a constant radius. Streamlines are plotted for the governing fluid flow.

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Publication Date

Sat Apr 01 2023

Journal Name

Baghdad Science Journal

Photonic Crystal Fiber Pollution Sensor Based on the Surface Plasmon Resonance Technology

Optical Fiber Sensor

Optical Fiber Surface Plasmon Resonance

Photonic Crystal Fiber

Polluted Water

Fatima Fadhil

Soudad S.

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Photonic Crystal Fiber (PCF) based on the Surface Plasmon Resonance (SPR) effect has been proposed to detect polluted water samples. The sensing characteristics are illustrated using the finite element method. The right hole of the right side of PCF core has been coated with chemically stable gold material to achieve the practical sensing approach. The performance parameter of the proposed sensor is investigated in terms of wavelength sensitivity, amplitude sensitivity, sensor resolution, and linearity of the resonant wavelength with the variation of refractive index of analyte. In the sensing range of 1.33 to 1.3624, maximum sensitivities of 1360.2 nm ∕ RIU and 184 RIU⁻¹ are achieved with the high sensor resolutions of 7

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Publication Date

Sun Aug 30 2020

Journal Name

Journal Of Economics And Administrative Sciences

مقترح اسلوب IRWs الحصين لتقدير أنموذج الانحدار المقسم لحركة حمولة قاع نهر دجلة ونقطة التغيير لكمية تصريف المياه عند مدينة بغداد

segmented linear regression

change point

reparameterization

M-estimator

S-estimator

bed-load transport

hydrology of water bodies

محمد احمد

Omar Abdulmohsin

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يتكون الانحدار المقسم من عدة أقسام تفصل بينها نقاط انتماء مختلفة، فتظهر حالة عدم التجانس الناشئة من عملية فصل الأقسام ضمن عينة البحث. ويهتم هذا البحث في تقدير موقع نقطة التغيير بين الأقسام وتقدير معلمات الأنموذج، واقتراح طريقة تقدير حصينة ومقارنتها مع بعض الطرائق المستعملة في الانحدار الخطي المقسم. وقد تم استعمال أحد الطرائق التقليدية (طريقة Muggeo) لإيجاد مقدرات الإمكان الأعظم بالأسلوب الت

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Publication Date

Thu Jun 01 2023

Journal Name

Iraqi Journal Of Physics

D-Shaped Photonic Crystal Fiber Toxic Metal Ions (Arsenic) Sensor Based on Surface Plasmon Resonance

Surface Plasmon Resonance

Optical Fiber Sensor

Toxic Metal Ions in Water

Photonic Crystal Fiber

D-shaped PCF

Ghufran Mohammed

Soudad

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In this work, a Photonic Crystal Fiber (PCF) sensor based on the Surface Plasmon Resonance (SPR) technology was proposed. A thin layer of gold (Au) was deposited on a D-shaped Photonic Crystal Fiber (PCF), which was coated with plasmonic chemically stable gold material with a thickness of 40nm. The performance parameters like sensitivity including wavelength sensitivity and amplitude sensitivity and resolution were evaluated by simulation using COMSOL software. The proposed sensor was created by using the finite element approach, it is numerically examined. The results show that the surface of D-shaped Photonic Crystal Fiber coated with Au behaves as a sensor to detect the refractive index (IR) of toxic metal ions. The impacts of the str

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