Search results for " sensor"
showing 10 items of 1714 documents
Influenza dei nutrienti azotati sull'attività di due ceppi di lievito nella vinificazione di uve bianche
2008
Šķēršļu konstatēšana uz dzelzceļa pārbrauktuves, izmantojot milimetru viļņu radaru sensorus
2022
Bakalaura darbā "Šķēršļu konstatēšana uz dzelzceļa pārbrauktuves, izmantojot milimetru viļņu radaru sensorus" tiek apskatīts milimetru viļņu radaru pielietojums dzelzceļa pārbrauktuvju novērošanas sistēmas prototipa izstrādē. Darbs tika izstrādāts Elektronikas un datorzinātņu institūta projekta ietvaros. Darba mērķis ir izpētīt dzelzceļa pārbrauktuvju drošības situāciju Latvijā, pieejamos drošības risinājumus un radaru darbību kā arī veikt milimetru viļņu radaru sensoru dzelzceļa pārbrauktuvju monitorēšanas sistēmas prototipa izstrādi.
La variété alimentaire est-elle un facteur de surconsommation. Si oui, comment, pourquoi ?
2010
Sensory evaluation with consumers revisited thanks to Free-Comment
2021
International audience
A Framework to Facilitate Wireless Sensor Network Application Development
2013
Elektroniskā versija nesatur pielikumus
Single Crystal Sub‐Nanometer Sized Cu6(SR)6 Clusters: Structure, Photophysical Properties, and Electrochemical Sensing
2016
Organic ligand-protected metal nanoclusters have attracted extensively attention owing to their atomically precise composition, determined atom-packing structure and the fascinating properties and promising applications. To date, most research has been focused on thiol-stabilized gold and silver nanoclusters and their single crystal structures. Here the single crystal copper nanocluster species (Cu6(SC7H4NO)6) determined by X-ray crystallography and mass spectrometry is presented. The hexanuclear copper core is a distorted octahedron surrounded by six mercaptobenzoxazole ligands as protecting units through a simple bridging bonding motif. Density functional theory (DFT) calculations provide…
On-Line Characterization of Gamma Radiation Effects on Single-Ended Raman Based Distributed Fiber Optic Sensor
2016
We report distributed temperature measurements based on Raman scattering performed during steady state $\gamma $ -ray irradiation at a dose rate of 1 kGy( ${\rm SiO}_{2}$ )/h and up to a total ionizing dose (TID) of $\sim 0.1\ \hbox{MGy}$ . We characterize on-line the evolution of the performances of a single-ended Raman distributed temperature sensor (RDTS) during the $\gamma $ -ray exposure of different classes of commercial multimode fibers (MMFs) acting as the sensing element. RDTS is influenced by the radiation-induced attenuation (RIA) phenomena leading to both large errors in the temperature measurements and a diminution of the useful sensing length. The amplitude of the radiation-in…
Investigation of Coating Impact on OFDR Optical Remote Fiber-Based Sensors Performances for Their Integration in High Temperature and Radiation Envir…
2016
The response of optical frequency-domain reflectometry-based temperature sensors is here investigated in harsh environments (high temperature, high radiation dose) focusing the attention on the impact of the fiber coating on the sensor performances in such conditions. Our results demonstrate that the various coating types evolve differently under thermal treatment and/or radiations, resulting in a small (<5%) change in the temperature coefficient of the sensor. The identified procedure, consisting of a prethermal treatment of the fiber at its maximum coating operating temperature, is here verified up to 150 °C for higherature acrylate and up to 300 °C for polyamide coating. This method allo…
Refractive index sensing by a silicon metasurface
2022
The availability of smart materials represents a key enabling milestone for the realization of smart sensors. In this research field, optical sensing has gained a lot of attention in various applications ranging from basic physics to chemistry and biology. Here, we exploit the non-invasive nature of light to achieve an innovative sensor based on all-optical dielectric nano-resonators arranged in a periodic fashion. The proposed sensor can measure refractive index changes up to 10(-6).
Influence of PDA Coating on the Structural, Optical and Surface Properties of ZnO Nanostructures
2020
Polydopamine (PDA) is a new biocompatible material, which has prospects in biomedical and sensor applications. Due to functional groups, it can host wide range of biomolecules. ZnO nanostructures are well known templates for optical sensors and biosensors. The combination of ZnO and PDA results in a change of optical properties of ZnO&ndash