Please use this identifier to cite or link to this item: https://hdl.handle.net/10316/40487
DC FieldValueLanguage
dc.contributor.advisorMarques, Lino José Forte-
dc.contributor.authorCabrita, Ricardo de Abreu Silvério-
dc.date.accessioned2017-04-04T16:00:23Z-
dc.date.available2017-04-04T16:00:23Z-
dc.date.issued2016-02-25-
dc.identifier.urihttps://hdl.handle.net/10316/40487-
dc.descriptionDissertação de Mestrado Integrado em Engenharia Electrotécnica e de Computadores apresentada à Faculdade de Ciências e Tecnologia da Universidade de Coimbrapt
dc.description.abstractPlants are constantly tapped to the environment in order to maintain homeostasis, synchronising internal functions to external phenomena. There is great interest in advancing in the field of plant electrophysiology so as to employ plants as biosensors in the future. A custom-made acquisition system to study plant electrophysiology was developed, including a three channel signal conditioning circuit and ADC with dynamic sampling rate. Also, air temperature and humidity, soil temperature and humidity and irradiance are monitored. To test the system an experiment was conduced to study lettuce, Batavia Amari Paris, response to acid. For this two groups of 4 lettuce each, one used as control the other subject to fertilising treatment, were studied in the absence of stimuli and in response to acid deposition. Feature selection was made using discrete wavelet analysis. The fertilised lettuce showed little response to acid, but fairly strong correlations between signals in the leaf zone. Control group showed high incidence of high frequency fast transients in response to acid, especially in the root zone. Both groups showed higher variance of DC values during day time than night time.pt
dc.language.isoengpt
dc.rightsopenAccesspt
dc.subjectElectrofisiologia das Plantaspt
dc.subjectPotenciais Eléctricospt
dc.subjectBiosensorespt
dc.subjectAquisição de Dadospt
dc.subjectCondicionamento de Sinalpt
dc.subjectPlant Electrophysiologypt
dc.subjectElectrical Potentialspt
dc.subjectBiosensorspt
dc.subjectData Acquisitionpt
dc.subjectSignal Conditioningpt
dc.subjectCompressive Sensingpt
dc.subjectWaveletspt
dc.titleDeveloping an Acquisition System to Sutdy Plant Electrophysiologypt
dc.typemasterThesispt
degois.publication.locationCoimbrapt
dc.date.embargo2016-02-25*
dc.identifier.tid201673762pt
thesis.degree.grantor00500::Universidade de Coimbrapt
thesis.degree.nameMestrado Integrado em Engenharia Electrotécnica e de Computadorespt
uc.degree.grantorUnit0501 - Faculdade de Ciências e Tecnologiapor
uc.rechabilitacaoestrangeiranopt
uc.date.periodoEmbargo0pt
uc.controloAutoridadeSim-
item.fulltextCom Texto completo-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.grantfulltextopen-
item.languageiso639-1en-
item.openairetypemasterThesis-
item.cerifentitytypePublications-
crisitem.advisor.researchunitISR - Institute of Systems and Robotics-
crisitem.advisor.parentresearchunitUniversity of Coimbra-
crisitem.advisor.orcid0000-0002-9396-986X-
Appears in Collections:UC - Dissertações de Mestrado
FCTUC Eng.Electrotécnica - Teses de Mestrado
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