Search results for " sensor"

showing 10 items of 1714 documents

Towards a layer-less network architecture — A case from Wireless Sensor Networks

2011

Ad hoc and Wireless Sensor Networks (WSNs) form a challenging domain for existing network protocols and paradigms to fit into. The traditional models conceived for wired networking and adapted for wireless and mobile environments provide an inefficient and ungraceful outcome when exercised against highly dynamic and highly mobile nature of ad hoc wireless sensor networks. Efforts are being made to tweak existing (and sometimes create from scratch) principles and models that can provide a concrete framework for such newer paradigms. The momentum of the traditional layered architecture carried over from the wired networks to infrastructure based wireless networks pushes the same approaches as…

Key distribution in wireless sensor networksVehicular ad hoc networkWireless ad hoc networkComputer sciencebusiness.industryWireless networkDistributed computingMobile wireless sensor networkMobile ad hoc networkAd hoc wireless distribution servicebusinessWireless sensor networkComputer network2011 2nd International Conference on Wireless Communication, Vehicular Technology, Information Theory and Aerospace & Electronic Systems Technology (Wireless VITAE)
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A Multisensor Proposal for Wireless Sensor Networks

2008

Every sensor node in a wireless sensor network (WSN) has a microcontroller, a transmitter/receiver and a sensor. It is able to acquire data from specific point in a real environment and transmit it through the WSN. Sometimes it is useful to gather different type of data from the same place in order to obtain a final result. In the related literature, very few works are about sensing different parameters using a unique sensor. In this paper we propose a Wireless IP multisensor that is able to gather several types of data from the environment and transmit the result of their combination. Our proposal decision has being mainly based on its development costs, its expansion capacity and its flex…

Key distribution in wireless sensor networksVisual sensor networkComputer sciencebusiness.industrySensor nodeMobile wireless sensor networkWirelessComputerSystemsOrganization_SPECIAL-PURPOSEANDAPPLICATION-BASEDSYSTEMSbusinessSensor fusionWireless sensor networkData transmissionComputer network2008 Second International Conference on Sensor Technologies and Applications (sensorcomm 2008)
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A Note on the Local Minimum Problem in Wireless Sensor Networks

2013

The Local Minimum Problem occurs in geographic routing scenarios. In this paper two solutions to this problem for certain network topologies are proposed. By using the notion of virtual coordinates a theoretical and a practical constructions are presented. A distributed algorithm for the practical approach is proposed.

Key distribution in wireless sensor networksWi-Fi arrayComputer scienceWireless ad hoc networkbusiness.industryDistributed algorithmMobile wireless sensor networkGeographic routingNetwork topologybusinessWireless sensor networkComputer network
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On Applications of Wireless Sensor Networks

2009

Wireless Sensor Networks (WSN) are ad-hoc networks in which small independent sensor nodes have limited energy, computational resources and wireless communication capabilities. Recently, both academia and industry have shown great interest in the area of Wireless Sensor Networks. This paper focuses on the practical applications in commerce and feasible future employment of WSNs. Continued advances of wireless communication technologies have led to the following fields of applications: habitat and environmental monitoring, security of buildings and property, oil and gas installations, mines and tunnels, emergency medical care, military applications. In the near future WSNs will certainly ent…

Key distribution in wireless sensor networksWi-Fi arrayWireless networkComputer sciencebusiness.industrySensor nodeComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKSMobile wireless sensor networkWireless WANFixed wirelessTelecommunicationsbusinessWireless sensor network
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Coded addresses in multi-hop wireless sensor networks

2014

Key distribution in wireless sensor networksWi-Fi arraybusiness.industryComputer scienceMobile wireless sensor networkbusinessWireless sensor networkComputer networkHop (networking)2014 International Wireless Communications and Mobile Computing Conference (IWCMC)
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CiNetView - Graphic Interface for Wireless Sensor Network Deployment and Monitoring

2010

Reliable communication is crucial for successful deployment of a wireless sensor network. Many environmental factors can affect the performance of radio links, and the deployment of a network without real-time information about link qualities can be a demanding task. This paper describes the CiNetView application that is intended to support the deployment and monitoring of wireless sensor network. CiNetView is based on diagnostic information collected by sensor nodes, and it allows the user to see a graphical presentation of the network topology and to monitor the network diagnostic information in real time.

Key distribution in wireless sensor networksWireless networkComputer sciencebusiness.industryVisual sensor networkReal-time computingMobile wireless sensor networkWireless WANbusinessWireless sensor networkSensor webComputer networkNetwork simulation2010 Fourth International Conference on Sensor Technologies and Applications
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A Personal LPWAN Remote Monitoring System

2021

Firefighters are equipped with an immobility detector device also called the Personal Alert Safety System (PASS) that is integrated into the user's Self-Contained Breathing Apparatus (SCBA). If a firefighter remains motionless for a certain period of time, a loud audible alert is triggered to notify the Firefighter Assist and Search Team (FAST) deployed in the area of intervention that the wearer of the PASS device is in trouble and in need of rescue. However, this device is not reliable enough since it triggers frequently false positives which lead to developing a tolerance for sounding alarms among the crew. As a consequence, they do not seem to be concerned about it as they should and th…

LPWANEmergency responseComputer scienceCrewFalse positive paradoxLocation awarenessMonitoring systemcomputer.software_genreComputer securitySet (psychology)Wireless sensor networkcomputer2021 International Wireless Communications and Mobile Computing (IWCMC)
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STUDIO E VALIDAZIONE DI SISTEMI PER L’IDENTIFICAZIONE E IL MONITORAGGIO DI PARAMETRI BIOMEDICI ATTI ALLA PREVENZIONE DI EVENTI INDESIDERATI E ALL’ASS…

L’aumento delle patologie cronico-degenerative nella popolazione mondiale ha comportato un numero sempre maggiore di individui richiedenti assistenza sanitaria, generando, nell’ambito delle realtà ospedaliere, diverse problematiche relative al miglioramento della qualità di vita dei pazienti, ai costi e alla gestione di un numero sempre crescente di soggetti ammalati. Il trattamento sanitario e la ricerca di base si sono pertanto orientati verso la prevenzione delle condizioni che predispongono i soggetti ai peggioramenti clinici e ai ricoveri ospedalieri, puntando sia su nuovi sistemi indossabili di monitoraggio per individuare precocemente i segni di peggioramento, sia su sistemi che poss…

LVADs gastrointestinal bleeding CFD analysis wearable sensors PPG blood pressureLVADs sanguinamento gastrointestinale analisi computazionale sensori indossabiili PPG pressione sanguigna
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Preliminary characterization of wild lactic acid bacteria and their abilities to produce flavour compounds in ripened model cheese system.

2007

Aims:  The aim of this work was to preliminary characterize wild lactic acid bacteria (LAB), previously isolated during artisanal Pecorino Siciliano (PS) cheese-making for technological and flavour formation abilities in a model cheese system. Methods and Results:  Twelve LAB were studied for the ability to grow at 10 and 45°C, to coagulate and acidify both reconstituted skim milk and ewe's milk. Moreover, the capacity of the strains to generate aroma compounds was evaluated in a model cheese system at 30- and 60-day ripening. Flavour compounds were screened by sensory analysis and throughout gas chromatography (GC)–mass spectrometry (MS). Most of the strains were able to grow both at 10 an…

Lactobacillus caseifood.ingredientFood HandlingFlavourlactic acid bacteria ; model cheese system ; sensory analysis ; volatile compoundsApplied Microbiology and BiotechnologySensory analysisModels Biologicalaroma microrganism characterizationGas Chromatography-Mass Spectrometrysensory analysischemistry.chemical_compoundfoodCheeseSkimmed milkFood microbiologyAnimalsmodel cheese systemFood sciencevolatile compoundsAromaFlavorlactic acid bacteria model cheese system sensory analysis volatile compoundsAldehydesSheepbiologyChemistryLacticaseibacillus rhamnosusfood and beveragesGeneral MedicineSettore AGR/15 - Scienze E Tecnologie Alimentaribiology.organism_classificationFatty Acids VolatileLactic acidlactic acid bacteriaFlavoring AgentsLactobacillusLacticaseibacillus caseiMilkAlcoholsTasteFood MicrobiologyFemaleLeuconostocBiotechnologyLactobacillus plantarum
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Giarraffa and Grossa di Spagna naturally fermented table olives: Effect of starter and probiotic cultures on chemical, microbiological and sensory tr…

2014

Abstract This work investigated on the effects of selected starters and of probiotic strains on the evolution of microbiota, on trend of volatile compounds and on the final sensorial traits of green table olives. The olives, belonging to Giarraffa and Grossa di Spagna cultivars, were processed according to Sicilian traditional method and the following samples were obtained: (1) un-inoculated spontaneous olives, control; (2) olives inoculated with probiotic Lactobacillus rhamnosus H25; (3) olives inoculated with commercial probiotic L. rhamnosus GG; (4) olives inoculated with Lactobacillus plantarum GC3 plus Lactobacillus paracasei BS21; and (5) olives inoculated with L. plantarum GC3 plus L…

Lactobacillus paracaseitable olives ; starter cultures; probiotics; multiplex PCR; volatile compounds ; sensory propertiesPopulationLactobacillus pentosuslaw.inventionchemistry.chemical_compoundProbioticLactobacillus rhamnosuslawsensory propertiesvolatile compoundsFood scienceeducationeducation.field_of_studybiologystarter culturesfood and beveragesSettore AGR/15 - Scienze E Tecnologie Alimentarimultiplex PCRbiology.organism_classificationLactic acidtable olives starter cultures probiotics mutiplex PCR volatile compounds sensory propertiestable olivesprobioticschemistryFermentationLactobacillus plantarumFood ScienceFood Research International
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