Search results for "Sensor"
showing 10 items of 4594 documents
Diseño, caracterización y propuestas de aplicación de sensores GMR (Giant MagnetoResistance) en medida de corriente a nivel de circuito integrado
2013
El efecto MagnetoRresistivo Gigante (GMR) es un mecanismo de acoplo magnético que se da en estructuras multicapa con espesores de nanómetros. En estos dispositivos, la resistencia varía con la aplicación de un campo magnético externo en unos niveles que permiten su uso como sensores, incluso a temperatura ambiente. Es tal la utilidad de los dispositivos basados en GMR, que sus descubridores fueron galardonados con el Premio Nobel de Física en 2007. La constante evolución que está experimentando esta tecnología está abriendo nuevos campos de aplicación, principalmente relacionados con la medida de pequeños campos magnéticos mediante micro y nano-dispositivos, como la biotecnología y la micro…
Metodi Chemiometrici per la sintesi razionale di Nanowires di ZnO per l'elettronica su Circuiti
2019
I nanowires di ZnO (ZnO NWs) rappresentano uno dei materiali 1D di maggiore interesse per lo sviluppo di sensori e/o trasduttori, date le loro ot time proprietà piezoelettriche e semiconduttive1 . Tuttavia, la sintesi chimica di ZnO NWs ad alto “aspect ratio” da soluzione acquosa a basse temperature stemi elettronici completi. Recentemente abbiamo sviluppato2 un metodo per il controllo razionale della sintesi di nanowires di ZnO (Figura 1) su supporti conduttivi in rame per la realizzazione di nanotrasduttori...
How amniotic fluid shapes early odor-guided responses to colostrum and milk (and more)
2016
Revue; Among the multiple transitions that characterize mammalian development, birth certainly is the most abrupt and spectacular. It is also the most challenging for newborns when one considers their high mortality rates in any mammalian species. Although evolution has selected newborn organisms that possess the physiological and behavioral keys leading to adapt to this harsh psychobiological challenge, their capabilities cannot be considered separately from the maternal organism and the environment she creates. Mammalian females provide indeed passive (physiological) and/or active (behavioral) assistance to complement and boost their offspring’s capacities. One notable strategy of mammali…
Viskositeetin mittaaminen pietsosähköherätteisellä värähtelijällä
2010
Tässä pro gradu -tutkielmassa käsitellään nesteen viskositeetin ominaisuuksia ja erityisesti pietsosähköherätteisiin komponentteihin perustuvia tapoja mitata nesteen viskositeettia sähköisesti. Motivaationa tutkielman tekoon oli löytää menetelmä, jolla voidaan mitata nesteiden viskositeettia luotettavasti. Nesteiden viskositeetti aiheuttaa värähtelijöihin sähköisen vastuksen, jolloin taajuuden, impedanssin ja vaihekulman resonanssiarvoja tarkastelemalla voidaan viskositeettia mitata. Teoriaosuudessa keskityttiin viskositeetin ominaisuuksien lisäksi suorakaiteen muotoisen palkin, CMBP, värähtelydynamiikkaan värähtelevä pallo -mallin ja simulaatiotulosten avulla. Kokeellisessa osiossa tutkitt…
Bioinspired sensors from olfactory proteins
2011
Overvåking av vitale parametere i sykehus : En sammenligning av manuelle og elektroniske overvåkingssystemer
2018
Masteroppgave i helse- og sosialinformatikk HSI500 - Universitetet i Agder 2018 Adverse events can be avoided by timely recognition of derangements in vital signs. Sørlandet Hospital HF (SSHF) has implemented an Early Warning Score System named "TILT"; 2Early identification of life-threatening conditions”. In 2017 SSHF started a project that tested wireless sensors for continuous monitoring of vital signs on wards. Patients were monitored by sensors and vital signs were also measured by traditional means during the project period. The aim of this study was to examine compliance with the vital signs monitoring protocol, and to examine the benefits of an electronic system. The following quest…
Sensor Technology for Sports Monitoring
2023
Over the past decades, huge steps have been made in the development of sensor technology related to sports monitoring [...]
Hands-feet wireless devices: Test-retest reliability and discriminant validity of motor measures in Parkinson's disease telemonitoring
2022
Background Telemonitoring, a branch of telemedicine, involves the use of technological tools to remotely detect clinical data and evaluate patients. Telemonitoring of patients with Parkinson's disease (PD) should be performed using reliable and discriminant motor measures. Furthermore, the method of data collection and transmission, and the type of subjects suitable for telemonitoring must be well defined. Objective To analyze differences in patients with PD and healthy controls (HC) with the wearable inertial device SensHands-SensFeet (SH-SF), adopting a standardized acquisition mode, to verify if motor measures provided by SH-SF have a high discriminating capacity and high intraclass corr…
Motorisen esiopetuksen vaikutukset kömpelöiden lasten taitoihin
1997
Proprioceptive response strength in the primary sensorimotor cortex is invariant to the range of finger movement
2023
Available online 13 February 2023 Proprioception is the sense of body position and movement that relies on afference from the proprioceptors in muscles and joints. Proprioceptive responses in the primary sensorimotor (SM1) cortex can be elicited by stim- ulating the proprioceptors using evoked (passive) limb movements. In magnetoencephalography (MEG), propri- oceptive processing can be quantified by recording the movement evoked fields (MEFs) and movement-induced beta power modulations or by computing corticokinematic coherence (CKC) between the limb kinematics and cortical activity. We examined whether cortical proprioceptive processing quantified with MEF peak strength, relative beta supp…