Search results for " sensor"
showing 10 items of 1714 documents
Real-Time Detection of Incipient Inter-Turn Short Circuit and Sensor Faults in Permanent Magnet Synchronous Motor Drives Based on Generalized Likelih…
2022
This paper presents a robust model-based technique to detect multiple faults in permanent magnet synchronous motors (PMSMs), namely inter-turn short circuit (ITSC) and encoder faults. The proposed model is based on a structural analysis, which uses the dynamic mathematical model of a PMSM in an abc frame to evaluate the system’s structural model in matrix form. The just-determined and over-determined parts of the system are separated by a Dulmage–Mendelsohn decomposition tool. Subsequently, the analytical redundant relations obtained using the over-determined part of the system are used to form smaller redundant testable sub-models based on the number of defined fault terms. Furthermore, fo…
Nanofilm metal layers as vacuum quality sensors
2010
Abstract A monitoring device for vacuum quality is realized by lowest cost single use oxygen sensors for vacuum insulation panels. They use the pressure dependence of oxide layer growth thickness on electrically measured metal nanofilms. These films were manufactured by e-beam evaporation, characterized in terms of resistance change with subsequent modeling of underlying mechanisms.
The communicative power of an extreme territory – the Italian island of Pantelleria and its passito wine
2018
Purpose This paper aims to examine how Pantelleria’s wineries communicate the extreme territory of Pantelleria through its passito wine and whether this may be a value added for consumers. Specifically examines which dimensions of communication are effectively used by wineries to stimulate, in wine consumers, emotions that link passito wine with the territory of Pantelleria. Design/methodology/approach All websites of wineries producing passito wine in Pantelleria were analyzed using the adaptation, goal-attainment, integration and latent pattern maintenance (AGIL) scheme for measuring communication dimensions. Findings Results suggest that wineries and stakeholders should apply territory-…
First Retrievals of ASCAT-IB VOD (Vegetation Optical Depth) at Global Scale
2021
Global and long-term vegetation optical depth (VOD) dataset are very useful to monitor the dynamics of the vegetation features, climate and environmental changes. In this study, the radar-based global ASCAT (Advanced SCATterometer) IB (INRAE-BORDEAUX) VOD was retrieved using a model which was recently calibrated over Africa. In order to assess the performance of IB VOD, the Saatchi biomass and three other VOD datasets (ASCAT V16, AMSR2 LPRM V5 and VODCA LPRM V6) derived from C-band observations were used in the comparison. The preliminary results show that IB VOD has a promising ability to predict biomass $(\mathrm{R}=0.74,\ \text{RMSE} =44.82\ \text{Mg}\ \text{ha}^{-1})$ , which is better …
MP2P Network in Collecting Data from Sensor Networks
2006
Wireless sensor networks provide numerous applications today. At the same time modern wireless short-range communication technologies combined with mobile users create environments for mobile peerto- peer networks. This paper discusses a concept of an application in which an MP2P network is used for collecting sensor network data. This model requires certain places with a high mobile user density in order to function. Simulation results indicate that the model can be used in environments where these requirements are met.
L’évaluation sensorielle au service d’une nouvelle offre de verres à vin
2019
International audience; Consommateurs éclairés, attentifs aux objets exclusifs de la dégustation, comme professionnels du monde du vin, de la gastronomie et de l’œnotourisme attendent du verre à vin une polyvalence accrue. Disposer d’un verre par couleur, cépage ou appellation est révolu car en décalage avec nos modes de vie et nos circonstances de consommation et souvent incompatible avec les contraintes économiques ou organisationnelles que connaissent les professionnels de la filière.Néanmoins, le verre continue de véhiculer une image qualitative et reste un vecteur incontournable pour permettre aux vins d’exprimer leurs caractéristiques sensorielles, principalement visuelles et olfactiv…
DEPFET Active Pixel Detectors for a Future Linear e(+)e(-) Collider
2013
arXiv:1212.2160v1.-- et al.
Sensoro metožu izmantošanas iespējas atmosfēras piesārņojuma novērtēšanā
2021
Darbā izvērtētas cieto daļiņu mērījumu sensoru izmantošanas iespējas gaisa kvalitātes kontrolē, sniegts salīdzinājums ar references metodēm. Sensoro metožu izmantošanas potenciāls raksturots izmantojot jau esošu sensoru tīklu Rīgas teritorijā, papildus vērtēta mērījumu telpiskā un temporālā izplatība, meteoroloģisko faktoru un citu apstākļu ietekme uz mērījumiem.
La sémantique sensorielle peut-elle être autre chose qu’une sémantique expérimentale ?
2017
International audience; [Objectifs et problématique] La question au centre de la proposition est celle de savoir quel(s) cadre(s) sémantique(s) théorique(s) est / sont le(s) mieux à même de rendre justice aux contraintes génériques qui pèsent sur les terminologies sensorielles – à commencer, ici, par la terminologie œnologique. Il s’agit en effet de tenir compte de deux aspects particuliers : d’une part la dimension expérientielle de ces termes (Dubois 2009) – où expérience doit être entendu au sens très concret de l’expérience de dégustation – et, d’autre part, la dimension éminemment subjective de ces expériences que la recherche d’une intersubjectivité partagée – comme sous-bassement déf…
Problems in Precise Measurement of Tidal Volumes
1998
Respiratory gas flows and volumes can conveniently be measured by pneumo-tachography.3 However, the pneumotachographic signal depends on gas temperature, humidity, and composition, and therefore the achievable precision of measurement is limited to about 5–10%2,8 — which is not sufficient for determining the human ventilation distribution with satisfactory accuracy.6,7,5 As a — potentially more accurate — alternative, a plethysmographic method may be used in which the tested subject breathes out of and into bags that are suspended in a large tank of constant volume (Figure 1). Volume V and pressure P in the system (consisting of tank, tubings, valves, and the subject) are related via Boyle-…