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Дисертації з теми "Temporal component"

Автор: Grafiati

Опубліковано: 3 червня 2025

Оновлено: 31 липня 2025

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1

Gao, Dengfeng. "Supporting the Procedural Component of Query Languages over Time-Varying Data." Diss., The University of Arizona, 2009. http://hdl.handle.net/10150/195841.

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As everything in the real world changes over time, the ability to model thistemporal dimension of the real world is essential to many computerapplications. Almost every database application involves the management oftemporal data. This applies not only to relational data but also to any datathat models the real world including XML data. Expressing queries ontime-varying (relational or XML) data by using standard query language (SQLor XQuery) is more difficult than writing queries on nontemporal data.In this dissertation, we present minimal valid-time extensions to XQueryand SQL/PSM, focusing o

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2

Anjasmara, Ira Mutiara. "Spatio-temporal analysis of GRACE gravity field variations using the principal component analysis." Thesis, Curtin University, 2008. http://hdl.handle.net/20.500.11937/957.

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Gravity Recovery and Climate Experiment (GRACE) mission has amplified the knowledge of both static and time-variable part of the Earth’s gravity field. Currently, GRACE maps the Earth’s gravity field with a near-global coverage and over a five year period, which makes it possible to apply statistical analysis techniques to the data. The objective of this study is to analyse the most dominant spatial and temporal variability of the Earth’s gravity field observed by GRACE using a combination of analytical and statistical methods such as Harmonic Analysis (HA) and Principal Component Analysis (PC

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3

Anjasmara, Ira Mutiara. "Spatio-temporal analysis of GRACE gravity field variations using the principal component analysis." Curtin University of Technology, Department of Spatial Sciences, 2008. http://espace.library.curtin.edu.au:80/R/?func=dbin-jump-full&object_id=18720.

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Gravity Recovery and Climate Experiment (GRACE) mission has amplified the knowledge of both static and time-variable part of the Earth’s gravity field. Currently, GRACE maps the Earth’s gravity field with a near-global coverage and over a five year period, which makes it possible to apply statistical analysis techniques to the data. The objective of this study is to analyse the most dominant spatial and temporal variability of the Earth’s gravity field observed by GRACE using a combination of analytical and statistical methods such as Harmonic Analysis (HA) and Principal Component Analysis (PC

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4

Christmas, Jacqueline. "Robust spatio-temporal latent variable models." Thesis, University of Exeter, 2011. http://hdl.handle.net/10036/3051.

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Principal Component Analysis (PCA) and Canonical Correlation Analysis (CCA) are widely-used mathematical models for decomposing multivariate data. They capture spatial relationships between variables, but ignore any temporal relationships that might exist between observations. Probabilistic PCA (PPCA) and Probabilistic CCA (ProbCCA) are versions of these two models that explain the statistical properties of the observed variables as linear mixtures of an alternative, hypothetical set of hidden, or latent, variables and explicitly model noise. Both the noise and the latent variables are assumed

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5

Garges, David Casimir. "Early Forest Fire Detection via Principal Component Analysis of Spectral and Temporal Smoke Signature." DigitalCommons@CalPoly, 2015. https://digitalcommons.calpoly.edu/theses/1456.

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The goal of this study is to develop a smoke detecting algorithm using digital image processing techniques on multi-spectral (visible & infrared) video. By utilizing principal component analysis (PCA) followed by spatial filtering of principal component images the location of smoke can be accurately identified over a period of exposure time with a given frame capture rate. This result can be further analyzed with consideration of wind factor and fire detection range to determine if a fire is present within a scene. Infrared spectral data is shown to contribute little information concerning the

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6

Gebresilassie, Mesele Atsbeha. "Spatio-temporal Traffic Flow Prediction." Thesis, KTH, Geoinformatik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-212323.

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The advancement in computational intelligence and computational power and the explosionof traffic data continues to drive the development and use of Intelligent TransportSystem and smart mobility applications. As one of the fundamental components of IntelligentTransport Systems, traffic flow prediction research has been advancing from theclassical statistical and time-series based techniques to data–driven methods mainly employingdata mining and machine learning algorithms. However, significant number oftraffic flow prediction studies have overlooked the impact of road network topology ontraff

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7

Boespflug, Erin L. "Component diffusion tensor analysis suggests disparate temporal stem and fornix white matter pathology in Mild Cognitive Impairment." University of Cincinnati / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1336137888.

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8

Wijekoon, Nishanthi. "SPATIAL AND TEMPORAL VARIABILITY OF SURFACE COVER IN AN ESTUARINE ECOSYSTEM FROM SATELLITE IMAGERY AND FIELD OBSERVATIONS." Kent State University / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=kent1194621824.

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9

Bouaziz, Hamida. "Adaptation of SysML Blocks and Verification of Temporal Properties." Thesis, Besançon, 2016. http://www.theses.fr/2016BESA2015/document.

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Le travail présenté dans cette thèse a lieu dans le domaine de développement basé sur les composants, il est une contribution à laspécification, l'adaptation et la vérification des systèmes à base de composants. Le but principal de cette thèse est la proposition d'uneapproche formelle pour construire progressivement des systèmes complexes en assemblant et en adaptant un ensemble de composants,où leur structure et leur comportement sont modélisés à l'aide de diagrammes SysML. Dans la première étape, nous avons défini uneapproche basée sur la méta-modélisation et la transformation des modèles po

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10

Prata, Marlon Santos. "Uma metodologia para extrair e avaliar padrões em imagens de ressonância magnética funcional na dimensão temporal." Universidade Federal de Sergipe, 2013. https://ri.ufs.br/handle/riufs/3346.

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This work presents a methodology to extract and evaluate signals in functional magnetic resonance imaging (fMRI) in the temporal dimension. It is assumed that it is possible to separate the signals from brain activations of a given protocol of other signals such as breathing, heartbeat, involuntary eye movements, and others. This paper proposes a methodological way, get through simulated and controlled measure the efficiency of the Model of Independent Component Analysis (ACI) for fMRI images to separate these signals experiments. To validate the experiments it was necessary to generate simula

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11

Davis, Denise Marie. "Distinguishing Processes that Induce Temporal Beach Profile Changes Using Principal Component Analysis: A Case Study at Long Key, West-central Florida." Scholar Commons, 2013. http://scholarcommons.usf.edu/etd/4881.

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The heavily developed Long Key is located in Pinellas County in west-central Florida. The structured Blind Pass at the north end of the barrier island interrupts the southward longshore sediment transport, resulting in severe and chronic beach erosion along the northern portion of the island. Frequent beach nourishments were conducted to mitigate the erosion. In this study, the performance of the most recent beach nourishment in 2010 is quantified through time-series beach profile surveys. Over the 34-month period, the nourished northern portion of the island, Upham Beach, lost up to 330 m3/m

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12

Kurtuldu, Huseyin. "New methods of characterizing spatio-temporal patterns in laboratory experiments." Diss., Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/37121.

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Complex patterns arise in many extended nonlinear nonequilibrium systems in physics, chemistry and biology. Information extraction from these complex patterns is a challenge and has been a main subject of research for many years. We study patterns in Rayleigh-Benard convection (RBC) acquired from our laboratory experiments to develop new characterization techniques for complex spatio-temporal patterns. Computational homology, a new topological characterization technique, is applied to the experimental data to investigate dynamics by quantifying convective patterns in a unique way. The homology

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13

Magidi, James Takawira. "Spatio-temporal dynamics in land use and habit fragmentation in Sandveld, South Africa." Thesis, University of the Western Cape, 2010. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_7886_1297841126.

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<p>This research assessed landuse changes and trends in vegetation cover in the Sandveld, using remote sensing images. Landsat TM satellite images of 1990, 2004 and 2007 were classified using the maximum likelihood classifier into seven landuse classes, namely water, agriculture, fire patches, natural vegetation, wetlands, disturbed veld, and open sands. Change detection using remote sensing algorithms and landscape metrics was performed on these multi-temporal landuse maps using the Land Change Modeller and Patch Analyst respectively. Markov stochastic modelling techniques were used to predic

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14

Vadapalli, Hima Bindu. "Recognition of facial action units from video streams with recurrent neural networks : a new paradigm for facial expression recognition." University of the Western Cape, 2011. http://hdl.handle.net/11394/5415.

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Philosophiae Doctor - PhD<br>This research investigated the application of recurrent neural networks (RNNs) for recognition of facial expressions based on facial action coding system (FACS). Support vector machines (SVMs) were used to validate the results obtained by RNNs. In this approach, instead of recognizing whole facial expressions, the focus was on the recognition of action units (AUs) that are defined in FACS. Recurrent neural networks are capable of gaining knowledge from temporal data while SVMs, which are time invariant, are known to be very good classifiers. Thus, the research cons

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15

López, Martínez Patricia. "Desarrollo de sistemas de tiempo real basados en componentes utilizando modelos de comportamiento reactivos." Doctoral thesis, Universidad de Cantabria, 2010. http://hdl.handle.net/10803/10639.

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El objetivo de la tesis es definir una metodología de desarrollo de aplicaciones de tiempo real basadas en componentes, orientada a aplicaciones cuyos requisitos temporales se especifican utilizando un modelo reactivo de comportamiento temporal. La metodología se construye en base a extensiones que incorporan a las especificaciones, modelos de referencia y procesos estándares propios de la ingeniería de componentes convencionales, esto es, sin requisitos temporales, los datos y los procesos necesarios para la especificación, diseño y análisis de los aspectos relativos al comportamiento tempora

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16

Ghosh, Dastidar Samanwoy. "Models of EEG data mining and classification in temporal lobe epilepsy: wavelet-chaos-neural network methodology and spiking neural networks." Columbus, Ohio : Ohio State University, 2007. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1180459585.

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17

Nair, Binu Muraleedharan. "Learning Latent Temporal Manifolds for Recognition and Prediction of Multiple Actions in Streaming Videos using Deep Networks." University of Dayton / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1429532297.

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18

Teixeira, Sérgio Coichev. "Utilização de análise de componentes principais em séries temporais." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/45/45133/tde-09052013-224741/.

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Um dos principais objetivos da análise de componentes principais consiste em reduzir o número de variáveis observadas em um conjunto de variáveis não correlacionadas, fornecendo ao pesquisador subsídios para entender a variabilidade e a estrutura de correlação dos dados observados com uma menor quantidade de variáveis não correlacionadas chamadas de componentes principais. A técnica é muito simples e amplamente utilizada em diversos estudos de diferentes áreas. Para construção, medimos a relação linear entre as variáveis observadas pela matriz de covariância ou pela matriz de correlação. Entre

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19

Challapalli, Sailabala 1980. "Modeling the temporal components of video structure." Thesis, Massachusetts Institute of Technology, 2001. http://hdl.handle.net/1721.1/86653.

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Thesis (M.Eng. and S.B.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2001.<br>Includes bibliographical references (leaf 62).<br>by Sailabala Challapalli.<br>M.Eng.and S.B.

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20

Mohammadiha, Nasser. "Speech Enhancement Using Nonnegative MatrixFactorization and Hidden Markov Models." Doctoral thesis, KTH, Kommunikationsteori, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-124642.

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Reducing interference noise in a noisy speech recording has been a challenging task for many years yet has a variety of applications, for example, in handsfree mobile communications, in speech recognition, and in hearing aids. Traditional single-channel noise reduction schemes, such as Wiener filtering, do not work satisfactorily in the presence of non-stationary background noise. Alternatively, supervised approaches, where the noise type is known in advance, lead to higher-quality enhanced speech signals. This dissertation proposes supervised and unsupervised single-channel noise reduction al

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21

Leonardo, André Santos. "Avaliação temporal dos componentes cardíacos do Danio rerio." reponame:Repositório Institucional da UnB, 2015. http://dx.doi.org/10.26512/2015.11.D.19362.

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Dissertação (mestrado)—Universidade de Brasília, Faculdade de Agronomia e Medicina Veterinária, 2015.<br>Submitted by Albânia Cézar de Melo (albania@bce.unb.br) on 2016-01-20T13:03:11Z No. of bitstreams: 1 2015_AndreSantosLeonardo.pdf: 1556117 bytes, checksum: 4e296b434783a231f7ba6e7ccbaab1cf (MD5)<br>Approved for entry into archive by Patrícia Nunes da Silva(patricia@bce.unb.br) on 2016-01-26T15:23:19Z (GMT) No. of bitstreams: 1 2015_AndreSantosLeonardo.pdf: 1556117 bytes, checksum: 4e296b434783a231f7ba6e7ccbaab1cf (MD5)<br>Made available in DSpace on 2016-01-26T15:23:19Z (GMT). No. of bit

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22

Salazar, Duvan Humberto Cataño. "Modelo fatorial com cargas funcionais para séries temporais." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/45/45133/tde-20032018-090755/.

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No contexto dos modelos fatoriais existem diferentes metodologias para abordar a modelagem de séries temporais multivariadas que exibem uma estrutura não estacionária de segunda ordem, co- movimentos e transições no tempo. Modelos com mudanças estruturais abruptas e restrições rigorosas (muitas vezes irreais) nas cargas fatoriais, quando elas são funções determinísticas no tempo, foram propostos na literatura para lidar com séries multivariadas que possuem essas características. Neste trabalho, apresentamos um modelo fatorial com cargas variando continuamente no tempo para modelar séries tempo

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23

Gorsuch, Peter. "Exploring temporal and spatial components of cold acclimation in arabidopsis thaliana." Thesis, University of York, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.444753.

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24

Moreira, Neilo Bergamin. "Analise espaço-temporal de componentes do balanço hídrico em um Latossolo cultivado com milho." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/11/11140/tde-25042012-162910/.

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O conhecimento dos processos que constituem a equação do balanço hídrico do solo, ou simplesmente os componentes do balanço de água no solo em campo cultivado é importante, por exemplo, para detectar corretamente períodos de déficits hídricos durante o ciclo das culturas, para indicar a necessidade de irrigação e indicar perdas de nutrientes por lixiviação. Uma vez que estes componentes podem variar no espaço e no tempo, o estudo da estabilidade temporal da variabilidade espacial deles é essencial para determinar adequadamente os pontos de observação no campo (locais) para monitorar a água do

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25

Zito, Tiziano. "Exploring the slowness principle in the auditory domain." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät I, 2012. http://dx.doi.org/10.18452/16450.

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In dieser Arbeit werden - basierend auf dem Langsamkeitsprinzip - Modelle und Algorithmen für das auditorische System entwickelt. Verschiedene experimentelle Ergebnisse, sowie die erfolgreichen Ergebnisse im visuellen System legen nahe, dass, trotz der unterschiedlichen Beschaffenheit visueller und auditorischer sensorischer Signale, das Langsamkeitsprinzip auch im auditorischen System eine bedeutsame Rolle spielen könnte, und vielleicht auch im Kortex im Allgemeinen. Es wurden verschiedene Modelle für unterschiedliche Repräsentationen des auditorischen Inputs realisiert. Es werden die B

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26

Santos, Sara Emília de Figueiredo. "Desagregação temporal de sucessões cronológicas: uma aplicação à trimestralização do consumo privado e da formação bruta de capital fixo Caboverdianos." Master's thesis, Instituto Superior de Economia e Gestão, 2009. http://hdl.handle.net/10400.5/926.

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Mestrado em Econometria Aplicada e Previsão<br>Em Cabo-Verde, não existem Contas Nacionais numa base trimestral, que sejam consistentes para a economia caboverdiana e que sejam de acesso público. Esta situação dificulta a realização de estudos sobre a economia caboverdiana com base em dados trimestrais. Neste trabalho, procura-se trimestralizar o Consumo Privado e a Formação Bruta de Capital Fixo (FBCF), dois dos principais agregados das Contas Nacionais Anuais de Cabo-Verde, com base em técnicas de desagregação temporal com recurso a indicadores associados. Dado o elevado número de indicadore

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27

Benoit, Julie. "Temporal relationship between ERG components and lateral geniculate unit activity in the rabbit." Thesis, McGill University, 1989. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=59297.

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The purpose of our study was to examine if there is an ERG component (a-wave, b-wave, or OPs) that could be used as an estimate of the intraretinal time of visual processing. To investigate that matter, we proceeded to simultaneous recordings of the ERG and of single cell unit activity at the geniculate level in paralyzed and anesthetized rabbits. Our results show that 86.4% of the geniculate cells (n = 162) responded to the flash before the peak of the b-wave. One of the oscillatory potentials, the OP2, was preceding the geniculate activity in 77.8% of the cases. Furthermore, the shifts in la

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28

Flesch, Aaron D., Richard L. Hutto, Leeuwen Willem J. D. van, Kyle Hartfield, and Sky Jacobs. "Spatial, Temporal, and Density-Dependent Components of Habitat Quality for a Desert Owl." Public Library of Science, 2015. http://hdl.handle.net/10150/621328.

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UA Open Access Publishing Fund<br>Spatial variation in resources is a fundamental driver of habitat quality but the realized value of resources at any point in space may depend on the effects of conspecifics and stochastic factors, such as weather, which vary through time. We evaluated the relative and combined effects of habitat resources, weather, and conspecifics on habitat quality for ferruginous pygmy-owls (Glaucidium brasilianum) in the Sonoran Desert of northwest Mexico by monitoring reproductive output and conspecific abundance over 10 years in and around 107 territory patches. V

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29

Rapacchi, Stanislas. "Low b-values diffusion weighted imaging of the in vivo human heart." Thesis, Lyon 1, 2011. http://www.theses.fr/2011LYO10012/document.

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L'Imagerie par Résonance Magnétique pondérée en Diffusion (IRM-D) permet l'accès à l'information structurelle des tissus au travers de la lecture du mouvement brownien des molécules d'eau. Ses applications sont nombreuses en imagerie cérébrale, tant en milieu clinique qu'en recherche. Néanmoins le mouvement physiologique créé une perte de signal supplémentaire au cours de l'encodage de la diffusion. Cette perte de signal liée au mouvement limite les applications de l'IRM-D quant à l'imagerie cardiaque. L'utilisation de faibles valeurs de pondération (b) réduit cette sensibilité mais permet seu

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30

Sérgio, Brandão do Nascimento Paulo. "Particionamento Temporal Acoplado a Escolha de Componentes para Aplicações de Computação Reconfigurável." Universidade Federal de Pernambuco, 2008. https://repositorio.ufpe.br/handle/123456789/1468.

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Made available in DSpace on 2014-06-12T15:50:20Z (GMT). No. of bitstreams: 2 arquivo1962_1.pdf: 6205609 bytes, checksum: 86f9f23173b3ed39d6763c36b0c8bda9 (MD5) license.txt: 1748 bytes, checksum: 8a4605be74aa9ea9d79846c1fba20a33 (MD5) Previous issue date: 2008<br>Nos últimos anos, assistimos um aumento do interesse pelo uso de FPGAs para aceleração de aplicações que apresentam desempenho limitado em software, devido à complexidade ou grande quantidade de dados a serem processados. Áreas como Processamento Digital de Sinais, Telecomunicações, Processamento de Imagens, Bioinformática e Computaç

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31

Fajardo, Mark A. "Defining cis- and trans-acting components for Prm-1 temporal translational control during murine spermatogenesis /." Thesis, Connect to this title online; UW restricted, 1997. http://hdl.handle.net/1773/10251.

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32

CAVALCANTI, Airton de Deus Cysneiros. "Variação temporal do componente lenhoso e de cactáceas de uma área de caatinga em Betânia/PE." Universidade Federal Rural de Pernambuco, 2008. http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/4701.

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Submitted by (edna.saturno@ufrpe.br) on 2016-06-13T15:58:29Z No. of bitstreams: 1 Airton de Deus Cysneiros Cavalcanti.pdf: 990363 bytes, checksum: b0ead408bd33df20e6c36f1f2e3b07c7 (MD5)<br>Made available in DSpace on 2016-06-13T15:58:29Z (GMT). No. of bitstreams: 1 Airton de Deus Cysneiros Cavalcanti.pdf: 990363 bytes, checksum: b0ead408bd33df20e6c36f1f2e3b07c7 (MD5) Previous issue date: 2008-06-12<br>Growth, recruitment and deaths of woody and cactus plants were monitored, along five years, in a caatinga community in a semiarid site, in Northeastern Brazil, with 511 mm and 25 oC avera

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33

Vásquez, Rivasplata Hernán Iván. "Análisis por modelización de componentes de una serie temporal de datos de vegetación." Bachelor's thesis, Universidad Nacional Mayor de San Marcos, 2009. https://hdl.handle.net/20.500.12672/15298.

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La evolución de la anestesia general viene marcada por el desarrollo de nuevos agentes anestésicos (como Remifentanilo) permitiéndonos, la utilización y combinación de estos, nuevas técnicas de inducción y mantenimiento anestésicos. La inexistencia de un agente anestésico que comprenda todos los componentes de la anestesia implica que la práctica de la anestesia general incluya la utilización de varios fármacos, esto es debido a que se intenta aprovechar las ventajas específicas y selectivas de cada uno para conseguir estabilidad cardiovascular, protección neuroendocrina, adecuados parámetros

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34

Schirmbeck, Juliano. "Padrão espaço temporal dos componentes do balanço de energia em clima subtropical úmido." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2017. http://hdl.handle.net/10183/170640.

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Resumo: Considerando a importância da compreensão da dinâmica espaço temporal dos componentes do balanço de energia (BE) em escala regional para o gerenciamento de recursos hídrico e o manejo agrícola, o objetivo principal desta tese foi construir e analisar uma série temporal dos componentes do BE adequada às condições de clima subtropical úmido do Estado do Rio Grande do Sul. Para tanto, inicialmente foi avaliada a adequação de modelos de estimativa de BE para o Estado. Nesta etapa foram utilizados produtos MODIS e dados de referência medidos em uma torre micrometeorológica instalada em Cruz

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Maier, Éder Leandro Bayer. "Relações espaço-temporais entre dados paleoclimáticos do Nevado Illimani (Bolívia) e a precipitação na América do Sul." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2014. http://hdl.handle.net/10183/94677.

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Este trabalho investiga a possibilidade de reconstruir a variabilidade da precipitação pretérita na América do Sul a partir de uma série temporal de razão isotópica de oxigênio (δ18O) em um testemunho de gelo obtido na Bolívia, para isso é analisado as relações espaço-temporais entre a precipitação sobre a América do Sul e a série do δ18O. Utilizou-se dados do δ18O dos primeiros 50 metros do testemunho de gelo do Nevado Illimani (6.350 m, 16º37’S, 67º46’W) e totais mensais da precipitação coletada em 890 estações meteorológicas sobre o continente sul-americano no período 1979–2008. As amostras

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36

Assefa, Anteneh. "Tracing and apportioning sources of dioxins using multivariate pattern recognition techniques." Doctoral thesis, Umeå universitet, Kemiska institutionen, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-102877.

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High levels of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/Fs) in edible fish in the Baltic Sea have raised health concerns in the Baltic region and the rest of Europe. Thus, there are urgent needs to characterize sources in order to formulate effective mitigation strategies. The aim of this thesis is to contribute to a better understanding of past and present sources of PCDD/Fs in the Baltic Sea environment by exploring chemical fingerprints in sediments, air, and biota. The spatial and temporal patterns of PCDD/F distributions in the Baltic Sea during the 20th c

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Antunes, Roberto Luiz dos Santos. "Variação espaço-temporal de NDVI em área de aproveitamento hidroelétrico - UHE Santo Antônio, Porto Velho (RO)." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2012. http://hdl.handle.net/10183/61679.

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Esta pesquisa analisa a variação espaço-temporal de NDVI (Índice de Vegetação da Diferença Normalizada) em área de aproveitamento hidroelétrico, na UHE Santo Antônio, Porto Velho, Rondônia. Para tanto elabora mapeamento do uso e cobertura do solo a partir de imagem Landsat TM nas seguintes classes: Floresta Ombrófila Aberta, Floresta Ombrófila Densa, Desmatamento, Queimadas e Solo exposto; obtém uma série temporal de imagens de NDVI/MODIS para o período 2000-2011; gera espectros temporais; relaciona os padrões a partir da série temporal de imagens MODIS com as classes de uso e cobertura do sol

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38

Thompson, Philip Jean-Paul. "The spatial and temporal variation of stratigraphic components within the San Fernando Channel System, Baja California, Mexico." Thesis, University of Aberdeen, 2010. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=158496.

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The San Fernando Channel System is a superbly exposed submarine channel system of late Cretaceous age located on the Pacific coast of Baja California, Mexico. High-resolution mapping and extensive system-wide correlation panels coupled with detailed sedimentology studies and interpretation of high-resolution photomosaics have shown that the system comprises a distinct hierarchy of stratigraphy components. Extensive outcrops have allowed a detailed submarine channel model to be proposed which describes architecture and facies spanning outcrop to seismic scales. Channel complex sets are the la

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SILVA, Crissanny Inês de Oliveira. "Relação temporal de componentes morfológicos e composição química em plantas da caatinga, Serra Talhada – PE." Universidade Federal Rural de Pernambuco, 2012. http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/6723.

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Submitted by (edna.saturno@ufrpe.br) on 2017-03-31T13:59:26Z No. of bitstreams: 1 Crissanny Ines de Oliveira Silva.pdf: 1680070 bytes, checksum: 4897757ab8f5c15311e0b3ceea28f4dd (MD5)<br>Made available in DSpace on 2017-03-31T13:59:26Z (GMT). No. of bitstreams: 1 Crissanny Ines de Oliveira Silva.pdf: 1680070 bytes, checksum: 4897757ab8f5c15311e0b3ceea28f4dd (MD5) Previous issue date: 2012-10-18<br>Conselho Nacional de Pesquisa e Desenvolvimento Científico e Tecnológico - CNPq<br>This study aimed to characterize bromatological and morphological components (leaves and stems) of some native p

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Mendonça, Luana Marina de Castro. "Composição e distribuição espaço-temporal dos Crustacea componentes da megafauna bêntica na plataforma continental de Sergipe." Universidade Federal de Sergipe, 2016. https://ri.ufs.br/handle/riufs/4474.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES<br>Crustacea is mentioned as a dominant group in almost all continental shelf environments around the Brazilian coast and the taxonomic group with more studies. However, the carcinofauna of some Brazilian shelfs are poorly known, such as Sergipe state. The aim of this study is contribute for the knowledge of Crustacea, components of benthic megafauna from continental shelf of Sergipe and understand how populations communities vary spatially and temporally. The crustaceans were collected with otter trawl in two different

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41

Weber, Jean-Francois. "Guider et contrôler les reconfigurations de systèmes à composants : Reconfigurations dynamiques : modélisation formelle et validation automatique." Thesis, Bourgogne Franche-Comté, 2017. http://www.theses.fr/2017UBFCD068.

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Notre objectif principal est de permettre l’utilisation de propriétés temporelles dans une politique d’adaptation en tenant compte des spécificités de la vérification à l’exécution.Pour y répondre, nous définissons un modèle de système à composants supportant les reconfigurations dynamiques. Nous introduisons les reconfigurations gardées qui nous permettent d’utiliser des opérations primitives en tant que “briques” pour construire des reconfigurations plus élaborées impliquant des constructions, non seulement, séquentielles, mais aussi alternatives ou répétitives, tout en garantissant la consi

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42

Leach, Corinne. "MANIPULATING TEMPORAL COMPONENTS DURING SINGLE-WORD PROCESSING TO FACILITATE ACCESS TO STORED ORTHOGRAPHIC REPRESENTATIONS IN LETTER-BY-LETTER READERS." Master's thesis, Temple University Libraries, 2019. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/574233.

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Public Health<br>M.A.<br>This study investigated the benefits of rapid presentation of written words as a treatment strategy to enhance reading speed and accuracy in two participants with acquired alexia who are letter-by-letter readers. Previous studies of pure alexia have shown that when words are rapidly presented, participants can accurately perform lexical decision and category judgment tasks, yet they are unable to read words aloud. These studies suggest that rapid presentation of words could be used as a treatment technique to promote whole-word reading. It was predicted that treatment

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43

Teixeira, Ana Rita Assunção. "Técnicas não lineares baseadas em componentes principais no estudo de séries temporais." Master's thesis, Universidade de Aveiro, 2005. http://hdl.handle.net/10773/4911.

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Mestrado em Engenharia Electrónica e Telecomunicações<br>Este trabalho teve como objectivo estudar técnicas não lineares para a eliminação de ruído em séries temporais. O estudo efectuado baseou-se nos algoritmos SSA e KPCA. É apresentado um novo algoritmo, designado por Local SSA, que representa uma extensão do SSA. O algoritmo KPCA é descrito numa abordagem diferente da apresentada na literatura. Os algoritmos foram aplicados a sinais artificiais para estudar a influência dos parâmetros na performance dos mesmos. Foi efectuado um estudo preliminar da aplicação destes algoritmos a sina

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Romanowich, Paul John. "The effects of temporal context on preference in a multiple schedule with alternating concurrent-chains and simple concurrent schedule components." Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 2007. http://wwwlib.umi.com/cr/ucsd/fullcit?p3284115.

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Thesis (Ph. D.)--University of California, San Diego, 2007.<br>Title from first page of PDF file (viewed January 9, 2008). Available via ProQuest Digital Dissertations. Vita. Includes bibliographical references (p. 77-80).

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45

Dutilleul, Pierre, and Claudine Till. "Detection of Atypical Years in the Tree-Ring Series by Construction of a Temporal Walk in the Principal Components Planes." Tree-Ring Society, 1989. http://hdl.handle.net/10150/261884.

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The purpose of this paper is to introduce a method for identifying years of anomalous radial growth, which are called atypical years and are characterized by particularly narrow rings for certain trees or sites, and wide for the others. With this aim, we use principal components analysis (PCA) of tree -ring series, where years are the variables and trees or sites are the individuals, even though in classical dendrochronological applications of PCA, the trees or sites are considered as variables and the years as cases. The relevant method is explained and results are given for five cedar forest

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46

Kleisner, Kristin Marie. "A Spatio-Temporal Analysis of Dolphinfish; Coryphaena hippurus, Abundance in the Western Atlantic: Implications for Stock Assessment of a Data-Limited Pelagic Resource." Scholarly Repository, 2008. http://scholarlyrepository.miami.edu/oa_dissertations/137.

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Dolphinfish (Coryphaena hippurus) is a pelagic species that is ecologically and commercially important in the western Atlantic region. This species has been linked to dominant oceanographic features such as sea surface temperature (SST) frontal regions. This work first explored the linkages between the catch rates of dolphinfish and the oceanography (satellite-derived SST, distance to front calculations, bottom depth and hook depth) using Principal Components Analysis (PCA). It was demonstrated that higher catch rates are found in relation to warmer SST and nearer to frontal regions. This

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47

Sebastião, Fernando José do Nascimento. "Técnicas multivariadas de redução de dados: comparação, aplicabilidade e convergência de resultados." Doctoral thesis, ISA-UL, 2016. http://hdl.handle.net/10400.5/12016.

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Doutoramento em Matemática e Estatística - Instituto Superior de Agronomia - UL<br>É muito comum a análise de dados recorrendo a técnicas multivariadas, nomeadamente para séries temporais. As principais metodologias consagradas, descritas ao longo desta dissertação, são a Análise em Componentes Principais (ACP), a Análise em Componentes Independentes (ACI), a Análise Espectral Singular (SSA) e a Análise Espectral Singular Multicanal (MSSA). A ACI tem sido considerada mais adequada que a ACP na análise de séries temporais, principalmente quando se admite a não normalidade e se exige que as comp

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48

Zebari, Bahroz Gh A. "Controls on the spatial and temporal evolution and distribution of depositional components in the Paleocene-Lower Eocene Succession, Kurdistan Region-Iraq." Thesis, University of Aberdeen, 2018. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=239281.

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49

Fakhfakh, Nizar. "Détection et localisation tridimensionnelle par stéréovision d’objets en mouvement dans des environnements complexes : application aux passages à niveau." Thesis, Ecole centrale de Lille, 2011. http://www.theses.fr/2011ECLI0005/document.

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La sécurité des personnes et des équipements est un élément capital dans le domaine des transports routiers et ferroviaires. Depuis quelques années, les Passages à Niveau (PN) ont fait l’objet de davantage d'attention afin d'accroître la sécurité des usagers sur cette portion route/rail considérée comme dangereuse. Nous proposons dans cette thèse un système de vision stéréoscopique pour la détection automatique des situations dangereuses. Un tel système permet la détection et la localisation d'obstacles sur ou autour du PN. Le système de vision proposé est composé de deux caméras supervisant l

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Rodrigues, Júnior Selmo Eduardo. "Metodologia evolutiva para previsão inteligente de séries temporais sazonais baseada em espaço de estados não-observáveis." Universidade Federal do Maranhão, 2017. http://tedebc.ufma.br:8080/jspui/handle/tede/1723.

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Submitted by Rosivalda Pereira (mrs.pereira@ufma.br) on 2017-07-03T18:32:31Z No. of bitstreams: 1 SelmoRodrigues.pdf: 1374245 bytes, checksum: 96afcfa04ba5cc18c4db55e4c92cdf23 (MD5)<br>Made available in DSpace on 2017-07-03T18:32:31Z (GMT). No. of bitstreams: 1 SelmoRodrigues.pdf: 1374245 bytes, checksum: 96afcfa04ba5cc18c4db55e4c92cdf23 (MD5) Previous issue date: 2017-01-26<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>This paper proposes a new methodology for modelling based on an evolving Neuro-Fuzzy Network Takagi-Sugeno (NFN-TS) for seasonal time series forec

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