Repozitorij Univerze v Novi Gorici

Iskanje po repozitoriju
A+ | A- | Pomoč | SLO | ENG

Iskalni niz: išči po
išči po
išči po
išči po
* po starem in bolonjskem študiju

Opcije:
  Ponastavi


1 - 10 / 11
Na začetekNa prejšnjo stran12Na naslednjo stranNa konec
1.
Development of electronics speckle interferometric weight sensor
Mohanachandran Nair Sindhu Swapna, 2022, objavljeni povzetek znanstvenega prispevka na konferenci

Ključne besede: ESPI, weight sensor
Objavljeno v RUNG: 19.12.2022; Ogledov: 823; Prenosov: 0
Gradivo ima več datotek! Več...

2.
3.
Fiber Sensor based Pulmonary Function Test
Mohanachandran Nair Sindhu Swapna, 2017, izvirni znanstveni članek

Ključne besede: Fiber optic sensor, Spirometer, Anemometer, Pulmonary function test
Objavljeno v RUNG: 05.07.2022; Ogledov: 1099; Prenosov: 0
Gradivo ima več datotek! Več...

4.
5.
6.
A multi-thermal-lens approach to evaluation of multi-pass probe beam configuration in thermal lens spectrometry
Humberto Cabrera, Leja Goljat, Dorota Korte, Ernesto Marin, Mladen Franko, izvirni znanstveni članek

Opis: In this work, a recently proposed thermal lens instrument based on multi-pass probe beam concept is investigated and described as a multi-thermal-lens equivalent system. A simulation of the photothermal lens signal formation in a multi-thermal-lens equivalent configuration of the system is performed and validated by comparing the experimental signals of single, dual and ten-pass configurations to theoretically calculated values. The theoretically predicted enhancement of the signal is 9 to 10-fold for a weak thermal lens when comparing the ten-pass configuration with the conventional single-pass thermal lens system. Experimentally achieved signal enhancement in the ten-pass system is 8.3 for pure ethanol sample and between 8 and 9 for solutions with different concentrations of the Fe(II) - 1,10-Phenanthroline complex. Additionally, a value of 9.1 was calculated as the ratio of the slopes of the calibration lines obtained using the ten-pass and single-pass configurations. The achieved limit of detection for determination of Fe(II), in the ten-pass configuration, was 0.4 µgL-1, with a relative standard deviation around 4.5%, which compares favorably with previously reported results for TLS determination of Fe(II) in thin samples using low excitation power. For the multi-pass configuration the linear range of measurement is reduced when compared to the single-pass configuration. This is explained by the theoretical analysis of the photothermal signal under multi-pass condition, which shows the important contribution of the nonlinear term in the theoretical expression for the photothermal signal. The ten-pass configuration, which is presented and validated experimentally for the first time, offers important signal enhancement needed in recently developed TLS instruments with tunable, low power excitation sources.
Ključne besede: Thermal lens spectrometry, Photothermal detection, Trace determination, Chemical sensor
Objavljeno v RUNG: 10.12.2019; Ogledov: 3123; Prenosov: 0
Gradivo ima več datotek! Več...

7.
A DNA origami plasmonic sensor with environment-independent read-out
Matjaž Valant, Mattia Fanetti, 2019, izvirni znanstveni članek

Ključne besede: DNA origami, plasmonic sensor, molecular detection, gold nanoparticle
Objavljeno v RUNG: 08.11.2019; Ogledov: 3044; Prenosov: 0
Gradivo ima več datotek! Več...

8.
9.
10.
Effect of gamma irradiation on Schottky-contacted vertically aligned ZnO nanorod-based hydrogen sensor
Sapana Ranwa, Surendra Singh Barala, Mattia Fanetti, Mahesh Kumar, 2016, izvirni znanstveni članek

Opis: We report the impact of gamma irradiation on the performance of a gold Schottky-contacted ZnO nanorod-based hydrogen sensor. RF-sputtered vertically aligned highly c-axis-oriented ZnO NRs were grown on Si(100) substrate. X-ray diffraction shows no significant change in crystal structure at low gamma doses from 1 to 5 kGy. As gamma irradiation doses increase to 10 kGy, the single crystalline ZnO structure converts to polycrystalline. The photoluminescence spectra also shows suppression of the near-band emission peak and the huge wide-band spectrum indicates the generation of structural defects at high gamma doses. At 1 kGy, the hydrogen sensor response was enhanced from 67% to 77% for 1% hydrogen in pure argon at a 150 °C operating temperature. However, at 10 kGy, the relative response decreases to 33.5%. High gamma irradiation causes displacement damage and defects in ZnO NRs, and as a result, degrades the sensor's performance as a result. Low gamma irradiation doses activate the ZnO NR surface through ionization, which enhances the sensor performance. The relative response of the hydrogen sensor was enhanced by ∼14.9% with respect to pristine ZnO using 1 kGy gamma ray treatment. © 2016 IOP Publishing Ltd.
Ključne besede: ZnO, nanorods, gamma irradiation, sensor
Objavljeno v RUNG: 12.01.2017; Ogledov: 4119; Prenosov: 0
Gradivo ima več datotek! Več...

Iskanje izvedeno v 0.05 sek.
Na vrh