Search results for " sensor"
showing 10 items of 1714 documents
Representações sociais, sens pratique, poder simbólico e o processo de construção do ser docente
2019
A partir de las elaboraciones teóricas de los fundadores del campo de investigación de las representaciones sociales, se pretende avanzar en la construcción de un diálogo entre esta teoría y la praxis social de Pierre Bourdieu, centrándose en la relación entre las representaciones sociales, la praxis sensorial (como manifestación del hábito) y el poder simbólico, dimensión ausente en el modelo moscoviciano. La base empírica a partir de la cual se desarrollan las reflexiones presentes en este artículo se apoya en investigaciones realizadas sobre el proceso de construcción del ser docente, en la realidad de algunas ciudades del nordeste brasileño. En este sentido, se destaca lo que se cree qu…
A Cooperative Multi-Agent System for Crowd Sensing Based Estimation in Smart Cities
2020
The concept of Smart City has spread as a solution to ensure better access to information and services to citizens, but also as a means to reduce the environmental footprint of cities. To this end, a continuous and wide observation of the environment is necessary to analyze information that enables government bodies to act on the environment appropriately. Moreover, a diffused acquisition of information requires adequate infrastructure and proper devices, which results in relevant installation and maintenance costs. Our proposal enables reducing the number of necessary sensors to be deployed while ensuring that information is available at any time and anywhere. We present the HybridIoT syst…
StateOS : A Memory-Efficient Hybrid Operating System for IoT Devices
2023
The increasing significance of operating systems (OSs) in the development of the internet of things (IoT) has emerged in the last decade. An event-driven OS is memory efficient and suitable for resource-constrained IoT devices and wireless sensors, although the program’s control flow, which is determined by events, is not always obvious. A multithreaded OS with sequential control flow is often considered clearer. However, this approach is memory-consuming. A hybrid OS seeks to combine the strengths of the event-driven approach with multithreaded approach. An event-driven cooperative threaded OS represents a hybrid approach that supports concurrency by explicitly yielding control to another …
Produire expérimentalement des corpus spécialisés pour l’analyse sémantique : méthodes et enjeux
2018
International audience; [Contexte] La présente proposition vise, à la suite de De Mönnink (1999) et Gilquin / Gries (2009), à interroger et discuter le rôle de corpus produits expérimentalement et de façon ad hoc pour l’analyse du lexique spécialisé – que les unités considérées soient officiellement reconnues comme termes ou non. Elle s’inscrit dans le paradigme d’une recherche située (Condamines / Narcy-Combes 2015) et intrinsèquement interdisciplinaire (Gautier 2014). Si les corpus spécialisés écrits, et dans une moindre mesure oraux, sont devenus monnaie courante, qu’ils soient intégrés aux corpus de référence ou produits pour des besoins spécifiques (Loock 2016), les corpus expérimentau…
Cross-cultural comparison of sensory profiles and consumer liking or various tea products with different degree of fermentation
2011
Cross-cultural comparison of sensory profiles and consumer liking or various tea products with different degree of fermentation. 9. Pangborn sensory science symposium
UAV-Assisted Data Collection in Wireless Sensor Networks: A Comprehensive Survey
2021
Wireless sensor networks (WSNs) are usually deployed to different areas of interest to sense phenomena, process sensed data, and take actions accordingly. The networks are integrated with many advanced technologies to be able to fulfill their tasks that is becoming more and more complicated. These networks tend to connect to multimedia networks and to process huge data over long distances. Due to the limited resources of static sensor nodes, WSNs need to cooperate with mobile robots such as unmanned ground vehicles (UGVs), or unmanned aerial vehicles (UAVs) in their developments. The mobile devices show their maneuverability, computational and energy-storage abilities to support WSNs in mul…
Data Compensation with Gaussian Processes Regression: Application in Smart Building's Sensor Network
2022
Data play an essential role in the optimal control of smart buildings’ operation, especially in building energy-management for the target of nearly zero buildings. The building monitoring system is in charge of collecting and managing building data. However, device imperfections and failures of the monitoring system are likely to produce low-quality data, such as data loss and inconsistent data, which then seriously affect the control quality of the buildings. This paper proposes a new approach based on Gaussian process regression for data-quality monitoring and sensor network data compensation in smart buildings. The proposed method is proven to effectively detect and compensate for low-qu…
IDS sistēmas ieviešana augstas veiktspējas tīklu drošības monitoringam ar atvērtā pirmkoda rīkiem un patēriņa aparatūru
2019
Darba mērķis ir izpētīt, kā izmantot atvērtā pirmkoda IDS sistēmas ar patēriņa aparatūru, lai monitorētu drošību augstas veiktspējas tīklos, kuros tīkla caurlaidība pārsniedz 10Gbit/s. Lai parādītu, kāds ir veiktspējas ieguvums no dažādām ar veiktspēju saistītam izmaiņām IDS sistēmā, mērķis ir veikt sistēmas ieviešanu, kur tiek veiktas izmaiņas pa posmiem un tiek iegūti rezultāti par izmaiņām veiktspējas rādītājos. Darbā tika pētīti ar IDS sistēmas veiktspējas uzlabošanu saistīti akadēmiskie darbi, lai apkopotu tajās izmantotās metodes, kas ir palīdzējušas sasniegt augstus IDS sistēmas veiktspējas rādītājus. Darba praktiskajā daļā tika ieviests pakešu ģenerators IDS sistēmas veiktspējas tes…
Wireless Sensor Network Operating System Design Rules Based on Real-World Deployment Survey
2013
Wireless sensor networks (WSNs) have been a widely researched field since the beginning of the 21st century. The field is already maturing, and TinyOS has established itself as the de facto standard WSN Operating System (OS). However, the WSN researcher community is still active in building more flexible, efficient and user-friendly WSN operating systems. Often, WSN OS design is based either on practical requirements of a particular research project or research group's needs or on theoretical assumptions spread in the WSN community. The goal of this paper is to propose WSN OS design rules that are based on a thorough survey of 40 WSN deployments. The survey unveils trends of WSN applic…
Polytetrafluoroethylene Films in Rigid Polyurethane Foams' Dielectric Permittivity Measurements with a One-Side Access Capacitive Sensor.
2021
As a non-metallic composite material, widely applied in industry, rigid polyurethane (PUR) foams require knowledge of their dielectric properties. In experimental determination of PUR foams’ dielectric properties protection of one-side capacitive sensor’s active area from adverse effects caused by the PUR foams’ test objects has to be ensured. In the given study, the impact of polytetrafluoroethylene (PTFE) films, thickness 0.20 mm and 0.04 mm, in covering or simulated coating the active area of one-side access capacitive sensor’ electrodes on the experimentally determined true dielectric permittivity spectra of rigid PUR foams is estimated. Penetration depth of the low frequency excitation…