Repository of University of Nova Gorica

Search the repository
A+ | A- | Help | SLO | ENG

Query: search in
search in
search in
search in
* old and bologna study programme

Options:
  Reset


1 - 10 / 70
First pagePrevious page1234567Next pageLast page
1.
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

Abstract: 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.
Keywords: cw laser, nanoparticle, method
Published in RUNG: 26.02.2024; Views: 116; Downloads: 1
URL Link to file
This document has many files! More...

2.
3.
4.
Audio tampering identification : phase portrait analysis as a promising tool for audio forensics
S. S. Aswathy, Mohanachandran Nair Sindhu Swapna, Sankaranarayana Iyer Sankararaman, 2023, published scientific conference contribution abstract

Keywords: audio forensics, tampering, signal processing
Published in RUNG: 09.01.2024; Views: 286; Downloads: 2
URL Link to file
This document has many files! More...

5.
Speckle interferometric detection of temperature- dependent microplastic leaching from paper cup : a thermal lens study
M. A. Rithwiq, Mohanachandran Nair Sindhu Swapna, Sankaranarayana Iyer Sankararaman, 2023, published scientific conference contribution abstract

Keywords: speckle, microplastics
Published in RUNG: 09.01.2024; Views: 305; Downloads: 2
URL Link to file
This document has many files! More...

6.
7.
8.
Thermal lens technique : a novel tool for the detection and quantification of microplastics in water
P. Anju Abraham, Mohanachandran Nair Sindhu Swapna, Sankaranarayana Iyer Sankararaman, 2023, published scientific conference contribution abstract

Keywords: thermal lens, microplastics
Published in RUNG: 09.01.2024; Views: 304; Downloads: 2
URL Link to file
This document has many files! More...

9.
10.
Eco-conscious nanofluids : exploring heat transfer performance with graphitic carbon nitride nanoparticles
Vijayakumar Gokul, Mohanachandran Nair Sindhu Swapna, Sankaranarayana Iyer Sankararaman, 2023, original scientific article

Abstract: Abstract The work explores the heat transfer capabilities of semiconducting graphitic carbon nitride (g-C3N4) nanofluids. Also, it presents a sustainable and eco-friendly method for synthesizing g-C3N4 nanoparticles using commercially available rice flour as a natural carbon precursor through hydrothermal treatment. The synthesized sample subjected to various characterizations, including analysis of their structure, morphology, thermal properties, and optical properties. The optical bandgap (2.66 eV) is deduced through Tauc plot analysis and reveals the semiconducting nature of the sample. The formation of g-C3N4 is confirmed by various spectroscopic techniques, including X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared (FTIR), and Raman spectroscopy. Thermogravimetric analysis (TGA) demonstrates the nanoparticles’ excellent thermal stability up to 550 °C, indicating potential applications in heat transfer fluids. The investigation of concentration-dependent thermal diffusivity variation using the sensitive mode mismatched dual beam thermal lens technique highlights the potential of g-C3N4 semiconductor nanofluid as an organic and metal-free additive in industry-demanding coolant applications.
Keywords: thermal lens, nanofluids
Published in RUNG: 05.01.2024; Views: 361; Downloads: 4
URL Link to file
This document has many files! More...

Search done in 0.06 sec.
Back to top