Search Results - "John, Siju"
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IoT based medical image encryption using linear feedback shift register – Towards ensuring security for teleradiology applications
Published in Measurement. Sensors (01-02-2023)“…Telemedicine gains prominence in today’s scenario and image security plays a vital role in the healthcare sector for authenticating data transfer. Medical…”
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Tantalum carbide based spectrally selective coatings for solar thermal absorber applications
Published in Solar energy materials and solar cells (15-08-2019)“…Tantalum carbide (TaC) based tandem coatings for selective absorption of solar radiation were fabricated by magnetron sputtering technique. Tandem structure of…”
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Thermal treatment of stainless steel substrates along with a thin silicon layer for high temperature solar thermal applications
Published in Solar energy (15-09-2023)“…•Thermal treatment of Si deposited SS304 at 900 °C leads to improved absorptance.•A reduced uniform reflectance (<10%) due to textured surface.•Formation of…”
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Extremely high temperature stable nanometric scale multilayer spectrally selective absorber coating: Emissivity measurements at elevated temperatures and a comprehensive study on ageing mechanism
Published in Solar energy materials and solar cells (01-03-2021)“…Spectrally selective W/WAlSiN/SiON/SiO2 solar absorber coatings were sputter-deposited on stainless steel and silicon substrates. The optimized as-deposited…”
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Nanometric multi-scale rough, transparent and anti-reflective ZnO superhydrophobic coatings on high temperature solar absorber surfaces
Published in Solar energy materials and solar cells (01-12-2012)“…We report the fabrication of a nanometric multi-scale rough, transparent and anti-reflective zinc oxide (ZnO) superhydrophobic coating on TiAlN/TiAlON/Si3N4…”
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On the thermal stability and performance evaluation of Si doped transition metal nitride/oxide nanolayered multilayer-based spectrally selective absorber for high-temperature photothermal applications
Published in Solar energy materials and solar cells (01-07-2022)“…Developing an absorber coating with high absorptance (α) in the solar spectrum region and low thermal emittance (ε) in the infrared region for concentrated…”
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Control of thermal emittance of stainless steel using sputtered tungsten thin films for solar thermal power applications
Published in Solar energy materials and solar cells (01-02-2015)“…Low thermal emittance is the key factor of a solar collector. For high temperature solar thermal applications, low emittance is an important parameter, because…”
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Engineering the Microstructure of Silicon Nanowires by Controlling the Shape of the Metal Catalyst and Composition of the Etchant in a Two-Step MACE Process: An In-Depth Analysis of the Growth Mechanism
Published in Langmuir (18-08-2020)“…In this work, slanted, kinked, and straight silicon nanowires (SiNWs) are fabricated on Si(111) and (100) substrates using a facile two-step metal-assisted…”
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Effect of surface finishing on the formation of nanostructure and corrosion behavior of Ni–Ti alloy
Published in Surface and interface analysis (01-05-2017)“…In the present work, we have investigated the formation of nanostructured oxide layers by anodic oxidation on different surface finished (mirror finished, 600…”
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Evolution mechanism of mesoporous silicon nanopillars grown by metal-assisted chemical etching and nanosphere lithography: correlation of Raman spectra and red photoluminescence
Published in Applied physics. A, Materials science & processing (01-07-2016)“…We have fabricated highly ordered, vertically aligned, high aspect ratio silicon nanopillars (SiNPLs) of diameter ~80 nm by combining metal-assisted chemical…”
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Correlation of structural ordering with magnetic properties of pulsed laser deposited Co2FeGa Heusler alloy thin films
Published in Journal of alloys and compounds (05-06-2018)“…In the present contribution, structural and magnetic properties of Pulsed laser deposited (PLD) Co2FeGa (CFG) thin films have been studied as a function of…”
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Correlation of structural ordering with magnetic properties of pulsed laser deposited Co^sub 2^FeGa Heusler alloy thin films
Published in Journal of alloys and compounds (05-06-2018)“…In the present contribution, structural and magnetic properties of Pulsed laser deposited (PLD) Co2FeGa (CFG) thin films have been studied as a function of…”
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Failure Analysis of the Axle Shaftof an Automobile
Published in Materials today : proceedings (2017)“…This paper deals with the various analysis incorporated in the testing and inspection of the axle shaft. The axle shaft is one of the prime components of an…”
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Synthesis of high yield silver nanowires for transparent flexible conductor applications
Published in Materials today : proceedings (2018)“…In the present study, we demonstrate a solution-phase synthesis of silver nanowires (AgNWs) using poly vinyl pyrrolidone (PVP). NaCl was added as a precursor…”
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