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1.
Tuning the dynamic thermal parameters of nanocarbon ionanofluids : a photopyroelectric study
Mohanachandran Nair Sindhu Swapna, Carmen Tripon, Alexandra Farcas, Dorin Dadarlat, Dorota Korte, Sankaranarayana Iyer Sankararaman, 2024, izvirni znanstveni članek

Opis: The present work delineates the tailoring of the thermal effusivity and diffusivity of the novel class of heat transfer fluids—ionanofluids—by the incorporation of nanocarbons like diesel soot (DS), camphor soot (CS), carbon nanotubes (CN), and graphene (GR). When the thermal diffusivity delivers information on the thermal energy propagation, the thermal effusivity concerns the energy exchange at the interface, enabling energy-efficient thermal system design. The nanocarbons are subjected to morphological characterisation by field emission scanning electron microscopy. Fourier-transform infrared and Raman spectroscopic analyses confirm functional groups and vibrational bands. The microcrystalline size and graphiticity are also understood from the Raman spectrum. Ionanofluids prepared by dispersing nanocarbons into an ionic liquid base 1-Butyl-3-methylimidazolium methyl sulfate (BMMS) are analysed by nondestructive photopyroelectric calorimetry (PPE). The PPE analysis of ionanofluids demonstrates that nanocarbons influence thermal parameters in the base fluid, with soot ionanofluids exhibiting increased thermal effusivity and diffusivity due to their various carbon allotropic composition. This study underscores the importance of selecting the appropriate carbon allotrope for tailoring ionanofluids’ thermal properties, providing insights into manipulating these properties for enhanced performance across various industrial applications.
Ključne besede: photopyroelectric, ionanofluid, soot, graphene, thermal diffusivity
Objavljeno v RUNG: 06.05.2024; Ogledov: 199; Prenosov: 3
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Complex network based Fourier analysis for signal processing
Vijayan Vijesh, K. Satheesh Kumar, Mohanachandran Nair Sindhu Swapna, Sankaranarayana Iyer Sankararaman, 2024, objavljeni znanstveni prispevek na konferenci

Ključne besede: fourier analysis, complex network, signal processing
Objavljeno v RUNG: 15.04.2024; Ogledov: 361; Prenosov: 0
.pdf Celotno besedilo (1,57 MB)
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4.
Novel approach to fish classification : fractalysis and machine learning-based approach
Jothy Thampy, Mohanachandran Nair Sindhu Swapna, Sankaranarayana Iyer Sankararaman, 2024, objavljeni znanstveni prispevek na konferenci

Ključne besede: fractals, fish, machine learning
Objavljeno v RUNG: 15.04.2024; Ogledov: 346; Prenosov: 1
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5.
Development of electronics speckle interferometric weight sensor
V. Aswathy Gopal, Abin Oscar, Mohanachandran Nair Sindhu Swapna, Sankaranarayana Iyer Sankararaman, 2024, objavljeni znanstveni prispevek na konferenci

Ključne besede: speckle, weight sensor, electronics speckle pattern interferometry
Objavljeno v RUNG: 15.04.2024; Ogledov: 338; Prenosov: 0
.pdf Celotno besedilo (1,43 MB)
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6.
Markov chain approach to rectifier circuits
Vijayan Vijesh, K. Satheesh Kumar, Mohanachandran Nair Sindhu Swapna, Sankaranarayana Iyer Sankararaman, 2024, objavljeni znanstveni prispevek na konferenci

Ključne besede: Markov chain, rectifier, graph theory
Objavljeno v RUNG: 15.04.2024; Ogledov: 323; Prenosov: 0
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7.
System and method for continuous wave low power laser based synthesis of metal nano particles : patent certificate IN 512589, 2024-02-20
Sankaranarayana Iyer Sankararaman, Mohanachandran Nair Sindhu Swapna, Abdul Rahim Sajeela Beevi Ashik, Ramachandran Nair Amba Devi Krishnanunni, Vadakkedathu Parameswaran Narayanan Nampoori, 2024, patent

Opis: This disclosure relates to synthesis of metal nanoparticles (NPs). In particular, the invention relates to methods of synthesizing metal nanoparticles using Laser. The invention relates to Laser assisted synthesis of metal nanoparticles using continuous wave low laser power in a liquid medium. The system [100] for synthesis of metal nanoparticles, comprises of a laser source [101], a mechanical chopper [102], a lens [103], a target metal [104], a liquid medium [106] and a heat source [107]. Additionally the invention relates to laser assisted synthesis of metal nanoparticles with silver as the metal target and water as the liquid medium. The NPs produced are characterized by UV-Visible spectrophotometer, Field-emission Scanning Electron Microscope (FESEM), Energy Dispersive X-Ray Spectroscopy (EDS), and Transmission Electron Microscopy (TEM).Figure 1.
Ključne besede: cw laser, nanoparticle, method
Objavljeno v RUNG: 26.02.2024; Ogledov: 530; Prenosov: 4
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Audio tampering identification : phase portrait analysis as a promising tool for audio forensics
S. S. Aswathy, Mohanachandran Nair Sindhu Swapna, Sankaranarayana Iyer Sankararaman, 2023, objavljeni povzetek znanstvenega prispevka na konferenci

Ključne besede: audio forensics, tampering, signal processing
Objavljeno v RUNG: 09.01.2024; Ogledov: 568; Prenosov: 2
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