1,721,002 research outputs found
Low-Cost Fabrication, Eco-Friendly Materials, and Easy Integration: the New Technological Paradigm for the Future Wireless Sensor Networks
No full textRaman spectroscopy for inline analysis of combustion processes
No full textA novel approach for cost-effective and time resolved combustion gas diagnostics based on spontaneous Stokes Raman spectroscopy is presented in this document.
The proposed instrument uses a multi-pass configuration designed to increase the scattering generation, giving information about gas species concentrations, including H2 and N2 that are not commonly available from analysis with absorption spectroscopy techniques. The system performs calibrated analysis providing both qualitative and quantitative information about the gas composition. Depending on the application, the device can work with spectra integration time from 0.15 s up to 10 s, with a Raman spectrum ranging from the H2 rotational peak at Raman shift of 587 cm−1 up to the H2 vibrational peak at cm−1, covering all the Raman emissions of major combustion species. The device response was characterized with a working pressure from 0.7 bar to 7.5 bar; The instrument prototype has been made completely transportable and ready to be operated in relevant industrial environments (TRL6).
The work presented in this thesis was carried out at the Institute of Photonics and Nanotechnologies of the Italian National Research Council (CNR-IFN), Padua branch, in collaboration with the PhD Course in Space Sciences, Technologies, and Measurements of the Center of Studies and Activities for Space - CISAS G.Colombo, University of Padua
SIW Components and Antennas Based on Eco-friendly Materials and Technologies: State-of-the-Art and Future Applications
No full textImplementation of Substrate Integrated Waveguide (SIW) by Inkjet-printing on Paper Substrate
No full textMultilayered Integration of Microwave Components by Substrate Integrated Waveguide Technology
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Innovative manufacturing approach for paper-based substrate integrated waveguide components and antennas
No full textRaman Spectroscopy for Temporally Resolved Combustion Gas Diagnostics
No full text: A novel approach for cost-effective and temporally resolved in-line combustion gas diagnostics based on spontaneous Stokes Raman spectroscopy is presented in this paper. The proposed instrument uses a multipass configuration designed to increase the scattering generation, giving information about gas species concentrations, including H2 and N2 that are not commonly available from analysis with absorption spectroscopy techniques. The system performs calibrated analysis providing both qualitative and quantitative information about the gas composition. Depending on the application, the device can work with spectra integration time from 0.15 s up to 10 s, with a Raman spectrum ranging from the H2 rotational peak at Raman shift of 587 cm-1 up to the H2 vibrational peak at 4156 cm-1, covering all the Raman emissions of major combustion species. The device response was characterized by a working pressure from 0.7 to 7.5 bar. The instrument prototype has been made completely transportable, designed to operate using a gas sampling system, and ready to be operated in relevant industrial in-line environments
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