Дисертації з теми "Etmm"
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Regis, Julie. "Impact des hypoxies sur la mobilité des nutriments et ETMM présents dans les sédiments des lagunes méditerranéennes." Electronic Thesis or Diss., Nîmes, 2024. http://www.theses.fr/2024NIME0002.
Studies carried out in recent years have shown that oxygen concentration in the water column is the main factor controlling all biogeochemical reactions in surface sediment, as well as controlling transfers of nutrients, trace elements (TE) at the sediment water interface (SWI). Three lagoons on France’s Mediterranean coast (Berre, Thau and Prévost) are among the world’s most eutrophied coastal zones impacted by hypoxia episodes, with high accumulations of nutrients, metals and metalloids in their sediment. They are also characterized by different benthic habitats, some of which include macrophytes, which have been shown to regulate nutrient flux at IES. This thesis project aims to better understand the impact of deoxygenation phenomena on the mobility of nutrients and TE present in Mediterranean lagoon sediment, in the presence of different benthic habitats representing their eutrophication gradient. The results show that the Berre lagoon is the site most impacted by long-lasting (1 week) and seasonal episodes of deoxygenation; the Prévost lagoon exhibits wide nycthemeral variations, going from hypoxia to hyperoxia in less than 12 h during the summer season; the Thau lagoon site seems the most resilient about deoxygenation. Under summer conditions, sediment and porewater concentrationprofiles show enrichments in nutrients and sulfides in the substrates of benthic habitats in lagoons with the most advanced eutrophication status (Berre and Prévost), and also in the presence of macroalgae (Prévost and Thau). These enrichments are the result of strong organic matter mineralization, and the more reducing conditions in these habitats binding the TE (As, Sb, Cd, Pb, Zn, Ni, Cu, Co, Hgtot) to the solid phase of the sediment. Comparison with available environmental thresholds enables us to identify habitats in the Berre lagoon that are highly at risk in terms of eutrophication support, remobilization of TE at SWI and ecotoxicological risk. The acquisition of dissolved oxygen concentration gradients within the benthic boundary layer (BBL) at high temporal resolution has enabled us to identify the high oxygen demand of sediment in the Berre lagoon and the nighttime deoxygenations resulting from the presence of opportunistic macroalgae in the Prévost lagoon. The punctual acquisition of concentration gradients illustrates nutrient exports from the sediment to the water column that are more intense under anoxic and euxinic conditions, and exports ofMn, Fe, As, Co under hypoxic conditions. However, concentration gradients under euxinic conditions indicate the trapping of TE (Mn, Fe, Cu,Mo) with the sulfide phases of the sediment. In addition, in situ and ex situ incubation experiments under "forced" deoxygenation conditions for the various benthic habitats present at these three sites yielded SWI fluxes that also followed this trend. Nutrient fluxes were shown to intensify following deoxygenation in eutrophied bare sediment habitats affected by deoxygenation (Berre) and specifically in habitats containing opportunistic (Prévost) and perennial (Thau) macroalgae. For these same habitats, the most intense exports of TE (Mn, Fe, As, Co, V , Mo) were measured under hypoxic and anoxic conditions, while fluxes decreased or reversed under euxinic conditions. This comparative and experimental field approach brings an integrative biogeochemical perspective on the chemical quality of sediment in lagoon environments undergoing re-oligotrophication. It provides a context for their great temporal variability, as well as their vulnerability to climate change
Grimanelli, de Besses Marie. "Contribution à l'analyse des qualifications : le cas des ETAM comptables." Grenoble 2, 1990. http://www.theses.fr/1990GRE21016.
The study's purpose is an analyse, in a dynamic view, of law and intermediate qualifications in accounting job. The approach is empirical in the main part. The first part presents the concepts used: dynamic system of sualifications, relations between technology and qualifications, qualifications in the firms. The second part analysis the general evolution of accounting qualifications with three viewpoint: - an analysis of tasks, - employment statistics (divide by economics branches, by qualification level, by school level - transformation in the school system. The third part is the report of directs observations in 8 firms, with differents characters. We can summarize the main results inthree points: - the dynamic approach of qualifications allows to understand some paradoxals cases in matter of employment: as the conjunction between high level of unemployment with lack of qualifications. - the accounting job desing is in a deep transformation. In the same time, and in an interactive way, the firms'demand in internal and specific accounting increase fastly and the news information's technologies allow this increasing with decreasing units costs. - instead, the differents ways of qualifications'management inthe firms have an high responsability in the results of this transformations in the matter of qualifications
Charbeau, Lidwine. "Inégalités de carrières entre hommes et femmes. Une approche par les conventions d'évaluation. Analyse des trajectoires professionnelles des cadres et ETAM chez un constructeur automobile." Thesis, Paris 10, 2009. http://www.theses.fr/2009PA100184.
Rather than reducing gender inequality with a problem of choice of incentives or pure discrimination, we propose to examine this phenomenon through the issue of labour quality. The assessment of labour quality is not just a simple coordination of actors around a selection criterion; it mobilizes a collective and consensual representation of “skilled” labourer, i.e. a quality convention. A firm is crossed by a plurality of quality conventions. We hypothesize that mobilization of some of them explains horizontal and vertical segregation (glass ceiling) by gender within organisation. An econometric study of the progression of managers and employees in a car manufacturer is proposed. This study helps us to isolate the determinants of career and assess their impact on the career paths of men and women. A qualitative interview study refines our exploration of evaluation methods and helps us to understand how business processes, apparently neutral, proved ultimately detrimental to women. These findings argue for a more practical purpose of evaluation in the diagnosis of occupational inequality. They also support the strategy of mainstreaming advocated recently by the EU and French government: to improve their efficiency, gender politics should promote forms of regulation closer to business reality
Jezl, Tomáš. "Využití frameworku NGOSS při zavádění SOA v prostředí telekomunikačního operátora." Master's thesis, Vysoká škola ekonomická v Praze, 2007. http://www.nusl.cz/ntk/nusl-7608.
Bassey, Michael Etim. "Economic viability of a floating gas-to-liquids (GTL) plant / Bassey, Michael Etim." Thesis, North-West University, 2007. http://hdl.handle.net/10394/1577.
Gupta, Roshan 1979. "The design and implementation of FIG : a record/playback mechanism for ETMS feeds." Thesis, Massachusetts Institute of Technology, 2003. http://hdl.handle.net/1721.1/87409.
Berthelot, Charlotte. "Les endophytes bruns septés dans les sols pollués aux éléments traces métalliques (ETM) : caractérisation, effet sur les plantes et mécanismes de tolérance aux ETM." Thesis, Université de Lorraine, 2017. http://www.theses.fr/2017LORR0024/document.
Phytomanagement is a handling method of contaminated sites based on the ability of plants to sequester pollutants. Fungi could favor plant growth in contaminated sites but were far less studied in the context of phytomanagement. Dark septate endophytes (DSE) were reported to improve plant tolerance against metallic trace elements (TE). The present work is part of the LORVER project and aims to understand the “plant-DSE-TE”. DSE were isolated from poplar roots growing on TE-contaminated soils and characterized. They belong to Leptodontidium, Phialophora, Cadophora and Phialocephala genera. Three strains were inoculated to birch and poplar in TE-contaminated soils. Leptodontidium sp. improved plant growth with an increase in chlorophyll, P and K concentrations, whereas Cadophora sp. decreased Cd concentration in shoots of birch. Then, Cadophora sp. Fe06, was used with an endomycorrhizal fungus, to co-inoculate ryegrass in a TE-polluted soil. The co-inoculation leads to the decrease of Cd concentration in shoots. Finally, the mechanisms involved in TE-tolerance by DSE were studied through the screening of a library of Leptondontidium sp. insertional random-mutants and an evaluation of the role of melanin against TE stress. The present work highlights the complexity of the interactions between DSE and plants under TE stress. These interactions were influenced by different parameters including plant species, DSE strains, and soil properties. Nevertheless, the ability of DSE to colonize a broad spectrum of plants in different soils and to promote plant growth, suggest that DSE could represent a substantial benefit for the fungus-assisted phytomanagement of polluted soils
Silva, Ranério Fernandes da. "Uma abordagem convergente para o mapeamento de processos ITIL similares aos do modelo eTOM." reponame:Repositório Institucional da UnB, 2007. http://repositorio.unb.br/handle/10482/6732.
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Este trabalho apresenta uma proposta de racionalização dos processos de gerenciamento de serviços para uma empresa de Telecomunicações, através da utilização dos modelos de referência, eTOM em telecomunicações, e ITIL, em TI, como referência para o gerenciamento dos processos de negócio de uma empresa de telecomunicações e das melhores práticas de gerenciamento de serviços de TI. A abordagem da racionalização dos processos é focalizada no atendimento aos serviços convergentes. Neste trabalho é feita a conceituação da Governança Corporativa e de Governança de TI e suas relações com a lei Sarbanes Oxley e outras regulamentações externas. Estudou-se o framework de melhores práticas para o gerenciamento de serviços de TI, ITIL, e o seu alinhamento com o negócio. É realizada uma conceituação do framework NGOSS (New Generation Operation Support System) e foi realizado um estudo detalhado do Enhanced Telecom Operation Map (eTOM). Aplicou-se também uma atualização e entendimento do cenário atual de telecomunicações e seus relacionamentos com os processos de convergência tecnológica e de serviços. Como ferramenta de apoio para as empresas na adoção de processos para suportar serviços convergentes, foi apresentado o desenvolvimento de proposta de modelo de utilização colaborativa entre os frameworks eTOM e ITIL. Como resultado, tem-se uma avaliação da aplicação de um modelo de utilização colaborativa do eTOM e ITIL, suas oportunidades de aplicação, um entendimento do nível maturidade da convergência dos processos e a mensuração dos ganhos proporcionados pela utilização de um framework convergente. ________________________________________________________________________________ ABSTRACT
This work presents a process optimization proposal for a telecommunications company services management processes, using he reference models eTOM, for telecommunications, and ITIL, for IT, as references, respectively, for the business processes management in a telecommunications company and the best practices in services management of IT. The approach for the process improvement is in the fulfillment of the convergent services. In this work the concepts of Corporative Governance and IT Governance are developed and their relationship with the Sarbanes Oxley law and other regulations are detailed. The IT Service Management best practices framework, ITIL, was analyzed, and its alignment with the business was determined. The conceptualization of the framework NGOSS (New Generation Operation Support System) was carried out through a detailed study of the Enhanced Telecom Operation Map (eTOM). Besides, it was presented an information update of the current telecommunications scene and its relationship with the technological convergence processes and services. As a support tool for the companies adopting convergent support services, the development of a collaboration model involving the frameworks eTOM and ITIL was presented. As a result, one has an application evaluation of the convergent model using eTOM and ITIL, its application opportunities, agreement convergence level maturity processes and the benefits of the use of a convergent framework.
Tetzlaff, Anke. "Coal fire quantification using ASTER, ETM and BIRD satellite instrument data." Diss., [S.l.] : [s.n.], 2004. http://edoc.ub.uni-muenchen.de/archive/00004398.
Koloskov, Gleb. "Methodology and uncertainty in ET estimate from Landsat-7 ETM+ imagery." Thesis, University of Southampton, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.582652.
Alves, Marcelo Giovane. "Automa??o do processo de ger?ncia de for?a de trabalho terceirizada no setor de telecomunica??es." Pontif?cia Universidade Cat?lica de Campinas, 2007. http://tede.bibliotecadigital.puc-campinas.edu.br:8080/jspui/handle/tede/483.
After the spilt of TELEBRAS that started the consolidation of the Telecommunications in the Brazilian market, which goes through the reduction in the operational costs of the operators of Personal Mobile Service (PMS). The integration of the business processes with the outsourcing companies shall be considered as part of the Work Force Management (WFM) process that was transferred outside the operator s border. The outsourcing of work force should be used as main condition in reduction of these costs. This document presents a new model for implementation of the WFM associated with a Service level Agreement (SLA) with performance indicators and targets pre-established in a signed contract between the parties, and focused on the macro process for guarantee of quality in the enhanced Telecommunications Operation Map (eTOM). This model allows the process to manage outside the operator s borders by using resources B2B, WAP and SMS in external environment defined by the eTOM model, as for proper human resources and as well for outsourcing companies in a more collaborative form.
Ap?s a cis?o da TELEBR?S, deu-se in?cio ? consolida??o do mercado brasileiro de telecomunica??es que passa pela redu??o dos custos operacionais das operadoras de Servi?o M?vel Pessoal (SMP). A integra??o dos processos de neg?cio com as empresas terceirizadas deve considerar que parte do processo de Ger?ncia da For?a de Trabalho (GFT) foi deslocado para fora das fronteiras da operadora. A terceiriza??o da for?a de trabalho vem sendo utilizada como principal forma de redu??o destes custos. Este trabalho, apresenta um novo modelo para a implementa??o da GFT associada a um Acordo de N?vel de Servi?o (Service Level Agreement - SLA) com indicadores de desempenho e metas pr?-estabelecidos num contrato firmado entre as partes e focado no macro processo de garantia de qualidade do enhanced Telecommunications Operation Map (eTOM). Esse modelo, permite gerenciar o processo al?m das fronteiras da operadora utilizando recursos B2B, WAP e SMS no ambiente externo definido pelo modelo eTOM, tanto para recursos humanos pr?prios quanto para empresas terceirizadas de forma mais colaborativa.
Bianchetti, Mara <1988>. "SERVIZI PUBBLICI IMMERSI NELL'ACQUA ALTA. Il lavoro sociale nel caos istituzionale. Il caso di Etam a Venezia." Master's Degree Thesis, Università Ca' Foscari Venezia, 2015. http://hdl.handle.net/10579/6380.
Lima, Camila Aparecida. "O Cerrado rupestre no Estado de Goiás com base em imagens landsat etm+." reponame:Repositório Institucional da UnB, 2008. http://repositorio.unb.br/handle/10482/1634.
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O Cerrado Rupestre ocorre em paisagens de relevo acidentado, com declividade moderada à acentuada e sob afloramentos rochosos. Além de apresentar destacada riqueza florística, essa fitofisionomia funciona ainda como barreira para o avanço da agropecuária no Cerrado. Apesar do seu importante papel na conservação da biodiversidade, não existe ainda um mapeamento preciso de ocorrências dessa fitofisionomia no referido bioma. O objetivo deste estudo foi mapear áreas de ocorrência de Cerrado Rupestre no Estado de Goiás, incluindo o Distrito Federal, por meio de análise de 24 imagens do satélite LANDSAT ETM+. A estratégia metodológica envolveu segmentação de imagens, classificação automática pelos métodos de Battacharya e ISOSEG, análise visual e refinamento por meio de cruzamento com dados de declividade, geomorfologia e geologia. O uso do classificador ISOSEG permitiu a identificação de 2.262.000 hectares de Cerrado Rupestre, sem validação de campo. Para tanto, foi selecionada uma área-teste contínua menor (aproximadamente 908.000 hectares), também com destacada riqueza biológica: a Área de Proteção Ambiental – APA Pouso Alto e o Parque Nacional da Chapada dos Veadeiros – PNCV, localizadas no Nordeste de Goiás. O mapeamento final para essa área de estudo, baseado na verificação em campo, resultou em um índice de exatidão global de 76%. O uso de imagens monotemporais do LANDSAT permitiu a identificação de áreas de ocorrência de Cerrado Rupestre, porém, a sua delimitação foi dificultada devido à confusão espectral com as fitofisionomias Cerrado sentido restrito, Mata Seca Decídua e Semidecídua. O uso do classificador Battacharya apresentou limitações computacionais para ambas as áreas. Como continuação desta linha de pesquisa, recomenda-se a validação do mapeamento para o Estado de Goiás, a análise de imagens multitemporais do LANDSAT e a análise sinergística entre LANDSAT e dados de radar. __________________________________________________________________________________ ABSTRACT
Cerrado Rupestre occurs in an accident relief landscapes, with moderate declivity to the accented one and under rocky outcrops. Besides its floristic richness, this phytophysiognomy acts as barrier for the agricultural advances in the Cerrado. Despite its importance in the biodiversity conservation, there is no precise mapping of its occurrences in the above mentioned biome. The goal of this study was to map the areas of occurrence of Cerrado Rupestre in the Goias State by analyzing 24 LANDSAT satellite images. The methodological strategy involved image segmentation, Battacharya and ISOSEG automated classifications, visual analysis and refinement through the slope, geological and geomorphological data integration. The use of ISOSEG classifier allowed the identification of 2.262.000 hectares hectares of Cerrado Rupestre, without field validation. For this, we selected a smaller, continuous test site (aproximately 908,000 hectares), again, with highlighted biological richness: the Pouso Alto Environmental Protected Area (EPA) and the Chapada dos Veadeiros National Park (CVNP), both located in the northeastern part of Goias. The final mapping for this study area, based on the field verification of 34 sites, resulted in an global precision index of 76%. Results of this research indicated that the use of image segmentation technique followed by Battacharya supervised classification presents computer limitations for extensive areas. The use of monotemporal LANDSAT images allowed the identification of Cerrado Rupestre ocurrences, however, its delimitation was difficulted by spectral confusions with the phytophysiognomies Cerrado sentido restrito, Mata Seca Decídua e Mata Seca Semidecídua. The use of Battacharya classifier presented limitation in the computer capability for both areas. As future research, we recommend field validation for the Goias State mapping, analysis of multitemporal LANDSAT scenes, and synergistic analysis between LANDSAT and radar data.
El, Houssainy Amonda. "Apports de géochimie sédimentaire des éléments traces métalliques dans deux zones côtières méditerranéennes urbanisées : Beyrouth (Liban) et Toulon (France)." Electronic Thesis or Diss., Toulon, 2020. http://www.theses.fr/2020TOUL0011.
Mediterranean Sea (MS) is a semi-enclosed sea divided into two basins: the Occidental and the Oriental basins. The two studied Mediterranean sites in this thesis are located respectively at N-W of MS and S-E of France for Toulon Bay and at E of MS, Lebanon for St-Georges Bay. They both host high population density especially along the coast and therefore exposed to numerous anthropogenic activities (e.g. tourism, marine transport, aquaculture, wastewater discharge, and industrial activities) contaminating the surrounding environment (water column, sediment, biota …) with different contaminants such as trace metals (TM). In addition, each site is characterized by the presence of an urbanized river: le Las (France) and Beirut River (Lebanon). Sediments are considered as a secondary source of contamination due to biogeochemical processes influencing TM mobility in the sediments. In this context, the objectives of this thesis are (1) to investigate TM contamination along the rivers and in bays; (2) to elucidate the influence of early diagenesis on TM mobility; and (3) to characterize organic matter at both sites. For all the above, superficial sediments, sediment cores, superficial waters and pore waters were collected along the two rivers and at both sites during the period 2016-2018. Sediments and waters samples were analyzed for main physical parameters, nutrients, organic carbon (dissolved and particulate) and major/ trace elements. Results showed that early diagenesis processes strongly control TM mobility in the sediments. In addition, the results confirmed that Toulon bay is strongly contaminated due to the 2nd World War and the present bay activities. The Las River inputs do not contribute and affect significantly the sediments of Toulon Bay. As for St-Georges Bay, we found that it has been impacted by several activities (industrial effluents discharged without treatment, runoff from agricultural zone) transported by Beirut River and/or by direct inputs (coastal landfill)
Bassey, Nkoyo Etim [Verfasser]. "Post-harvest losses in Sub-Saharan Africa : measurement concepts and economic assessment of reduction strategies / Nkoyo Etim Bassey." Bonn : Universitäts- und Landesbibliothek Bonn, 2018. http://d-nb.info/1173898638/34.
Freitas, Filipe André Martins de. "O processo de elaboração de uma arquitectura de informação tendo em vista o CRM de duas empresas de telecomunicações portuguesas." Master's thesis, Instituto Superior de Economia e Gestão, 2009. http://hdl.handle.net/10400.5/1150.
Os relacionamentos constituem uma das principais formas de diferenciação adoptadas pelas organizações na actualidade, sendo o CRM (Customer Relationship Management) a estratégia utilizada na procura da fidelização de relacionamentos com clientes. O sector das telecomunicações tem sofrido grandes alterações e tem sido marcado por uma vaga de fusões e alianças de empresas, parcerias estratégicas, entrada de novos actores e regulamentação assimétrica. O presente trabalho faz uma reflexão sobre como se processa a elaboração de uma arquitectura de informação, tendo em vista o sistema de informação de CRM de duas grandes empresas portuguesas de telecomunicações no seu processo de convergência/integração. Faz-se também a análise da framework eTOM, verificando os seus contributos práticos para as operadoras de telecomunicações. Para a realização do objectivo proposto foi desenvolvido um de estudo de caso único, onde se analisaram os três pilares do CRM; pessoas, processos e tecnologias. A recolha de dados foi efectuada através de entrevista, observação directa e análise documental. Como resultado observou-se que as características da gestão de topo, a cultura empresarial e a resistência à mudança são factores determinantes no processo de desenvolvimento e utilização bem sucedida de um sistema de CRM, factores estes que se consubstanciam num dos pilares que sustentam as organizações, as pessoas. Também são encontradas características que destacam a importância da tecnologia e dos processos mas observa-se que sozinhos não garantem o sucesso da adopção e utilização dos SI/TI (Sistemas de Informação/Tecnologias de Informação). Constatou-se também durante este estudo que a framework eTOM é um elemento facilitador das relações entre os três pilares do CRM para empresas do sector de telecomunicações.
Nowadays, organizations, adopts relationships as one of the main ways of differentiation, being the CRM (Customer Relationship Management) the strategy used for searching reliable relationships with clients. Telecommunications sector has suffered from major alterations and has been marked by a considerable number of fusions and alliances of enterprises, strategic partnerships, introduction of new actors and asymmetric regulation. This work reflects upon an elaboration of an information architecture, taking into consideration the Information Systems and the CRM of two great Portuguese telecommunications companies, in their convergence/integration process. Also the framework eTOM is analyzed, and its practical contributions for the telecommunications operators, checked. To reach the claimed goals, a unique case study was performed and the three CRM pillars were studied; people, processes and technologies. Data was collected from interviews, direct observation and documental analyses. In this case, top management, company culture and fear/resistance to changes are the principal factors conditioning the development and application of successful CRM systems, which depends mostly upon people, the key element of any enterprise. Technologies and processes are also important, but without worker involvement, do not assure successful use and adoption of IS/IT (Information Systems/Information Technologies). On the other hand, eTOM framework is an element that eases the relationships among the three pillars of CRM, for telecommunication sector enterprises.
Arai, Egidio. "Simulação de imagens do sensor ETM+ a partir de imagens diárias do sensor MODIS." Instituto Nacional de Pesquisas Espaciais, 2011. http://urlib.net/sid.inpe.br/mtc-m19/2011/02.02.13.32.
The objective of this thesis is to simulate images possessing spatial and spectral resolutions of Enhanced Thematic Mapper Plus (ETM\smallString{+}) from daily images coming from Moderate Resolution Imaging Spectroradiometer (MODIS) sensor of Terra platform, A computational system, IESUIM (Imagem ETM\smallString{+} Simulada Utilizando Imagem MODIS), has been developed and it is divided into two procedures to: 1) calculate contribuition of pixels ETM\smallString{+} image to form selected pixels MODIS image (reference image), thus, resulting a weight matrix for each spectral band; and 2) simulate daily images of MODIS, from other dates, using weight matrix. Several images of 2002 and 2003 were simulated using ETM\smallString{+} and MODIS images of October 2$^{nd}$ 2001 as references. In order to validate the simulations, available ETM\smallString{+} images were compared by means of regression analysis. Correlation analysis and residue analysis showed that there is a good agreement between the original and simulated images. Besides, results obtained from IESUIM were compared with fusion and restoration techniques and the results showed that images simulated by IESUIM were very similar to the original ones in both space and spectral resolutions. A case study was conducted by employing PRODES project to estimate deforested areas. Results showed good agreement when compared to deforested areas coming írorn ETM\smallString{+} images.
Narteh, Victor Nii Afum. "Mapping and Modeling Chlorophyll-a Concentrations in Utah Lake Using Landsat 7 ETM+ Imagery." BYU ScholarsArchive, 2011. https://scholarsarchive.byu.edu/etd/2816.
Wilfong, Bryan N. "Detecting an invasive shrub in deciduous forest understories using remote sensing." Oxford, Ohio : Miami University, 2008. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=miami1217288997.
Braun, Gunnar Johannes. "Ermittlung des Wissensstandes über Schutzmaßnahmen gegen solare Exposition in Mitgliedsbetrieben als Grundlage für die präventive Tätigkeit der BG ETEM." Master's thesis, Dresden International University, 2018. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-235002.
Chmielewski, Adrian. "Thermodynamique de surface et réactivité du nanoalliage CU-AU par microscopie électronique en transmission environnementale en condition gazeuse." Thesis, Sorbonne Paris Cité, 2018. http://www.theses.fr/2018USPCC136/document.
: Copper-gold nanoalloy (CuAu) for heterogeneous catalysis is of increasing interest in the scientific community. Indeed, the alloy of gold, known to be a stabilizing element, with copper, known to be very active with respect to oxygen particularly, shows interesting catalytic properties, in oxidation reactions such as oxidation of carbon monoxide, but also in hydrogenation reactions, such as the selective hydrogenation of butadiene. One of the rate determining step in oxidation and hydrogenation reactions is the process of adsorption and dissociation of O2 and H2 molecules by the catalyst. In order to have a better understanding of the processes involved, it is necessary to identify, the active sites where the eventual adsorption and dissociation of the molecules takes place, but also the mechanisms involved during these processes. However today, there is no general consensus in the scientific community towards the location of the active sites. It is in this context that this thesis work, conducted in the laboratory Materials and Quantum Phenomena (MPQ) within the team Advanced Electron Microscope and NanoStructures (Me-ANS) led by Professor Christian Ricolleau. The two major issues we have been interested in are (i) the structural and morphological stability, in vacuum and with temperature, of Cu, Au and Cu-Au nanoparticles deposited on different substrates such as amorphous silicon nitride and rutile -TiO2 nanorods, (ii) the structural and morphological stability of Cu, Au and Cu-Au nanoparticles supported on rutile-TiO2 under oxidizing (O2) and reducing (H2) atmospheres. The main goals being to identify the possible adsorption sites of the O2 and H2 molecules by the catalysts, and to better understand the mechanisms that lead to the morphological evolution of these NPs in a reactive medium
Musy, Rebecca Forest. "Refinement of Automated Forest Area Estimation via Iterative Guided Spectral Class Rejection." Thesis, Virginia Tech, 2003. http://hdl.handle.net/10919/33053.
Master of Science
Affonso, Adriana Gomes. "Caracterização de fisionomias vegetais na Amazônia Oriental através de videografia aerotransportada e imagens landsat 7 ETM+." Instituto Nacional de Pesquisas Espaciais, 2003. http://urlib.net/sid.inpe.br/jeferson/2003/12.03.09.23.
Transformation of multispectral remote sensing data is needed for compression of data volume and for the inference of biophysical properties of the land cover. Linear Spectral Mixing Models (LSMM) and Normalized Difference Vegetation Index (NDVI) are transformations that result in indicators of vegetation structure. However these methods present limitations in relation of their sensitivity. There are few evaluations on the real meaning of the products derived with these techniques. Airborne videography allows a thorough evaluation of these transformations, for it allows a better understanding of the vegetation structure and of how it affects the scattering mechanism of the radiation detected by orbital sensors. The objective of this work is to evaluate the spectral response of several vegetation physiognomies in the municipality of Maraba, Para, in relation to the reflectance in Landsat -7 ETM+ and in their transformations and to compare the proportion of the Shadow component derived through the LSMM with the Shadow percent measured in the Videographic products. Based on the videography, five types of vegetation physiognomies were identified: Upland Forest, Floodplain Forest, Secondary forest, Babacu Forest and Grassland. Analysis of the digital number distribution of each physiognomy in each band was conducted and of their relations with NDVI and with the components Soil, Vegetation and Shadow extracted from the Landsat Bands through LSMM. It was also analyzed the relationship between the Shadow component and the percentage of shadow determined through the analysis of videographic data. The results demonstrated that the spectral signature of each physiognomy is associated to the amount of vegetation cover, canopy architecture, and dominant background and to the leaf angular distribution. The IDVN discriminated only Grassland, Secondary Forest and the remaining classes. The percentage of shadow in the videographic data allowed only the differentiation of Babacu Forest from the remaining classes. The Shadow component of the linear mixing model was the most efficient product for the discrimination of the vegetal physiognomies, allowing the discrimination among all the classes but between Grassland and Secondary forest. This result reassures the potential of LSMM to the study of natural vegetation cover in Tropical Forest Regions.
Soubrand-Colin, Marilyne. "Localisation, distribution et mobilité des ETM dans des sols développés sur roches basaltiques en climat tempéré." Limoges, 2004. http://aurore.unilim.fr/theses/nxfile/default/dc748927-4074-49be-a246-c087bcc555a1/blobholder:0/2004LIMO0046.pdf.
Six soils from the French Massif Central, submitted to different microclimatic environments, have been studied in order to determine the distribution and speciation of metallic trace elements (MTE) in the solid fraction of soils developed on weathered basalts and basanites. The tertiary basaltic rocks, and their subsequent developed soils, present high Cr (248-455 mg/kg) and Ni (126-237 mg/kg) contents. These soils are all andic soils, rich in organo - complexes but presenting no allophane. Three different approaches were combined to study the fate and the mobility of the MTE during supergene alteration. The mineralogical study of the unweathered rocks pointed out that MTE are present in the chromiferous spinels, the titanomagnetites and in the ferromagnesian silicates (forsterite and augite). The hydrolysis of the ferromagnesian silicates as well as the spinels resistance to alteration are the two main parameters respectively controlling the released of the MTE and their retention in clays associated to the authigenic iron oxides. Isovolumic balance and enrichment factor are the two quantitative methods carried out to evidence the pedological and lithological roles of these parameters involved in the MTE distribution in the three soils developed on basalts. This study confirmed the mineralogical control on the Cr and Ni distribution whereas the Cu and Zn distribution is related to organic matter and organo - minerals complexes. Despite the alteration strength of the mineralogical carriers, Cr and Ni tend to be partially released from the leaching of andosols in colder and higher rainfall conditions on the contrary to the andic cambisols environments where Cr and Ni are preserved. The organic components role is evidenced by the immobilisation of Cu and Zn whereas the major elements (Na, Mg, Ca, Si) are highly released. The selective extractions confirmed the main association of Cu with the soil organic components. This study highlight the low potential mobility of the MTE in mountainous temperate climate on the contrary to previous works carried out in warmer climate environments
Torres, Mauricio. "Étude expérimentale et numérique de l'utilisation de capteurs placés à l'intérieur des structures composites : concept de patch d'enfouissement." Toulouse 3, 2012. http://thesesups.ups-tlse.fr/1839/.
This thesis, achieved in the framework of the project "Multi-sensor Instrumentation for the Composite Materials and structures (I2MC)" and financed by the RTRA STAE foundation, proposed the sensor monitoring patch as an alternative embedding technique for the in-core instrumentation of composites structures. First, a feasibility study of the monitoring patch is made with elementary composite coupons in order to apply it to a more complex structure. For this goal, we used the toolbox Multi - Instrumented Technological Evaluator (MITE) which regroups interactive methods for the analysis of composites structures of industrial nature. The mechanical performances of structures with and without monitoring patch are compared in order to qualify the value added of this embedding technique. The monitoring patch is also included in the multi-sensor instrumentation of a composite structure to follow its curing process. Finally, the advantages of the monitoring patch are discussed with the aim to include the sensor's integration into the industrial manufacturing of composite structures
Silva, Vannessa Ribeiro da, 92988016846, and https://orcid org/0000-0003-4982-0950?lang=pt. "A mulher no ensino profissional em Manaus: visibilidade, espaços e dinâmicas na ETM e ETFAM (1937-1971)." Universidade Federal do Amazonas, 2018. https://tede.ufam.edu.br/handle/tede/6794.
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FAPEAM - Fundação de Amparo à Pesquisa do Estado do Amazonas
This work aims to analyze the spaces occupied by the woman and the dynamics in front of her activities performed in vocational education at the Technical School of Manaus (ETM) and the Federal Technical School of Amazonas (ETFAM) in the period from 1937 to 1971. The temporal cut was due to the need to start with the year 1937, period of the new State (1937-1945), according to the same time that occurred the creation of the Technical School of Manaus (ETM); And until the decade of 1971 when the Federal Technical School of Amazonas (ETFAM) deliberations, on January 8 of the respective year, the authorization of the enrollment of women in the courses offered. The research is relevant when visibilizing the woman, showing that her activities go beyond the private space, and that when facing a patriarchal society, seeks for equal rights, and becomes subject in history. In the decade of 60 to 70 Brazil underwent political, cultural transformations, and women, during this period, claimed better conditions in the public space, were already working in factories, joined the universities and were influenced by the movements Feminists in the United States and Europe. Thus, the specific objectives that guided the research were: 1) contextualize The history of women and their insertion and visibility in the world of work and education; 2) To examine the indications about women in vocational education in Manaus in the ETM and ETFAM in the face of educational policy in the period 1937 to 1971; and 3) Describe the women in the occupied spaces, as well as their functions, dynamics and activities at the Technical School of Manaus (ETM) and the Federal Technical School of Amazonas (ETFAM). The method we elected was history based on the Social and Cultural perspective. This conception was concerned with the studies about the forgotten and marginalized individuals, including the woman, and consequently gives us epistemological and theoretical bases for the development of the historical narrative. This is a documentary research, in which the primary sources were collected in the general archives, the archives of the coordination of Academic Control (CCA) and the Museu Moacir Andrade, all located in the Federal Institute of Education, Science and Technology of Amazonas ( IFAM). These documents were inside file boxes and the record was through photographs. The collection of documents was also carried out in public and private collections, libraries, newspapers, and complemented with normative documents, decrees and laws, according to the period researched. Through the sources found and problematized, the women who occupied these positions and the spaces, went through little discrimination, some had higher education, and influential parents and husbands in the Manauara society. Before the transition from the schools of apprentices to industrial and technical schools in the government of Getúlio Vargas, in 1942, the Capanema reform was implemented by the Minister of Education Gustavo Capanema with the organic laws of education, and that Regulated secondary, industrial and commercial education and the creation of the National Industrial Learning Service (SENAI). It was with the changes of the Organic Law of Industrial Education that the organization of education and vocational training gained more visibility. With LDB No. 4.024/61 There was a reformulation in the structure of vocational education and changed the teaching in the country again. Thus, the research highlights in 3 chapters the woman in history, female work and occupied spaces in the ETM and ETFAM.
Este trabalho objetiva analisar os espaços ocupados pela mulher e as dinâmicas frente as suas atividades exercidas no ensino profissional na Escola Técnica de Manaus (ETM) e Escola Técnica Federal do Amazonas (ETFAM) no período de 1937 a 1971. O recorte temporal foi devido à necessidade de iniciar com o ano de 1937, período do Estado Novo (1937-1945), conforme a mesma época que ocorreu a criação da Escola Técnica de Manaus (ETM); e até a década de 1971 quando a Escola Técnica Federal do Amazonas (ETFAM) delibera, em 8 de janeiro do respectivo ano, a autorização da matrícula de mulheres nos cursos oferecidos. A pesquisa é relevante ao visibilizar a mulher, mostrar que as suas atividades vão além do espaço privado, e que ao enfrentar uma sociedade patriarcal, busca pela igualdade de direitos, e torna-se sujeito na história. Na década de 60 a 70 o Brasil passou por transformações políticas, culturais, e as mulheres, nesse período, reivindicavam melhores condições no espaço público, já trabalhavam em fábricas, ingressavam nas universidades e eram influenciadas pelos movimentos feministas ocorridos nos Estados Unidos e Europa. Assim, os objetivos específicos que nortearam a pesquisa foram: 1) Contextualizar a história da mulher e sua inserção e visibilidade no mundo do trabalho e na educação; 2) Examinar os indícios sobre as mulheres no ensino profissional em Manaus na ETM e ETFAM frente à política educacional no período de 1937 a 1971; e 3) Descrever as mulheres nos espaços ocupados, assim como as suas funções, dinâmicas e atividades na Escola Técnica de Manaus (ETM) e Escola Técnica Federal do Amazonas (ETFAM). O método que elegemos foi o Histórico com base na perspectiva Social e Cultural. Essa concepção se preocupou com os estudos sobre os indivíduos esquecidos e marginalizados incluindo a mulher, e consequentemente nos dá bases epistemológicas e teóricas para o desenvolvimento da narrativa histórica. Trata-se de uma pesquisa documental, em que as fontes primárias foram coletadas no Arquivo Geral, Arquivo da Coordenação de Controle Acadêmico (CCA) e no Museu Moacir Andrade, todos localizados no Instituto Federal de Educação, Ciência e Tecnologia do Amazonas (IFAM). Esses documentos estavam dentro de caixas-arquivo e o registro foi através de fotografias. A coleta dos documentos também foi realizada em acervos públicos e privados, bibliotecas, jornais, e complementados com os documentos normativos, Decretos e Leis, de acordo com o período pesquisado. Por meio das fontes encontradas e problematizadas, as mulheres que ocupavam esses cargos e os espaços, passavam por pouca discriminação, algumas tinham formação superior, e pais e maridos influentes na sociedade Manauara. Antes de ocorrer a transição das Escolas de Aprendizes Artífices para as Escolas Industriais e Técnicas no governo de Getúlio Vargas, em 1942, foi implementada a Reforma Capanema pelo Ministro da Educação Gustavo Capanema com as Leis Orgânicas do Ensino, e que regulamentaram o Ensino Secundário, Industrial, Comercial e a criação do Serviço Nacional de Aprendizagem Industrial (SENAI). Foram com as mudanças da Lei Orgânica do Ensino Industrial que a organização do ensino e da formação profissional ganhou mais visibilidade. Com a LDB nº 4.024/61 ocorreu uma reformulação na estrutura do ensino profissional e modificou novamente o ensino no país. Desse modo, a pesquisa destaca em 3 capítulos a mulher na história, no trabalho feminino e nos espaços ocupados na ETM e ETFAM.
Varela, Ruben Andres Salas. "Projeto de microsistemas eletrotermomecânicos (ETM) utilizando o método de otimização topológica (MOT) considerando a resposta térmica transiente." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/3/3152/tde-04072012-174915/.
Electrothermomechanical (ETM) microsystems are systems in micrometric scale which operate based on thermoelastic effect deformation induced by heating the structure by means of an electrical current. Since a fast, damped and stable (at steady state) transient response is desirable with the aim of improving ETM efficiency, it is necessary to minimize the response time of the thermal effect which is the slowest phenomena among different physics involved in the ETM microsystems. This can be achieved by changing the ETM structural topology. Thus, in this work, the Topology Optimization Method (TOM) is applied to ETM microsystems design, taking into account transient thermal response in order to reduce their response time and to maximize their output displacement. The TOM combines optimization techniques with the finite element method (FEM) to distribute material in a fixed design domain in order to extremize a cost function subjected to some inherent constraints of the problem. The modeling of ETM microsystems is obtained by solving the governing equations using the linear FEM based on four-node isoparametric elements. Non-temperature dependent material properties are considered in the finite element models. The electrical problem is solved by considering a steady current static analysis; the transient state thermal problem considers a temperature distribution that varies over time. In the elastic domain, the mass and the damping effects are neglected, thus, resulting in a quasi-static problem. In the Topology Optimization formulation the material model is based on the Solid Isotropic Microstructure with Penalization (SIMP) model combined with a sensitivity filter and two penalty functions as solution control techniques to reduce mesh dependence and checkerboard problems intrinsic to the TOM. The penalty factors in SIMP are obtained through an analytical approach. Sequential Linear Programming (SLP) and Method of Moving Asymptotes (MMA) are used for solving the non-linear optimization problem. Two-dimensional results are presented to illustrate the method. Moreover, the final topologies are obtained by a shape interpretation algorithm and the dynamic optimization result is compared with steady-state optimization, which is implemented for comparative purposes.
Fortes, Caio. "Discriminação varietal e estimativa de produtividade agroindustrial de cana-de-açúcar pelo sensor orbital ETM+/Landsat 7." Universidade de São Paulo, 2004. http://www.teses.usp.br/teses/disponiveis/11/11140/tde-18052004-163051/.
The development of remote sensing techniques on the sugarcane crop evaluation has great importance for government agencies, breeding institutions and farmers, because it helps to attempt better planning of market politics and it optimizes the decision support systems. The spectral behavior of vegetation canopies reflects important characteristics of the agricultural crops as its growth, greenness and biomass production. The objective of this research is to develop a methodology for discrimination of sugarcane varieties and to estimate the crop agronomic yield and some important industrial properties like Brixº, Pol% juice, Pol% cane, Fiber %, Humidity %, Purity %, Kg of ATR/Mg of stalks and Impurity %, by the ETM+/LANDSAT 7 orbital sensor. It is known that plants and crops in general present spectral behaviors and interactions with the electromagnetic energy in certain bands of the electromagnetic spectra due to its composition/structure and also because the effect of the several production factors (soil, climate and variety). It gets up the hypothesis that is possible to establish relationships between the spectral characteristics of the sugarcane crop and its agronomic and industrial productivity. Then, it has been chosen sugarcane fields located in Paraguaçu Paulista County, western of São Paulo state, Brazil. The sugarcane fields data were georeferenced and settled into a GIS environment. Fields which possessed different varieties, however with the same planting date were selected. The fields were evaluated about their spectral data of the six sensor bands and six vegetation indexes, correlating with the varieties discrimination and with the fields average agro industrial yield. It has been concluded that is possible to characterize and to foresee attributes of the sugarcane crop through ETM+/LANDSAT 7 orbital sensor. The average accuracy found was 93,55% in the variety separation. The observation of the orbital spectral plots helps discriminating the sugarcane varieties and B4 appeared to be the most appropriate. The dispersion graphic between B4 and GNDVI also helps in sorting out these varieties. Multiple linear regression models were generated, aiming to select variables with high potential to quantify the crop agro industrial attributes mentioned previously. For the agronomic yield forecast (Mg/ha) it has been obtained 0,6935 of determination coefficient (R2) and a averageof 0,5807 for the technological characteristics. The technological attributes with better results in the forecast (R2) were Pol % juice and the humidity % with 0,7416 and 0,6397, respectively. The spectral data collection method of the spectral information influences on the results and, in a general way, the arithmetic mean of pixels method was the most appropriate. The application of all of ETM+/LANDSAT 7 was important on the sugarcane varieties characterization, discrimination and in the agro industrial yields forecasts.
Louriño, Cabana Beatriz. "Comportement des éléments traces métalliques (ETM) dans deux systèmes aquatiques soumis à des activités minières et métallurgiques." Thesis, Lille 1, 2010. http://www.theses.fr/2010LIL10033/document.
Trace-metals behaviour had been studied in two different aquatic systems contaminated by mining and metallurgical activities. The first study site is situated in two Norwegian rivers (Raubekken and Vorma). Cu, Fe and Zn concentrations in both rivers were measured by voltammetry by means of an automatic monitoring system developed by the NTNU (Norwegian University of Science and Technology). The most significant result of this study was the daily variability of these three metals in Vorma, with noticeable shifts of metal-content maxima detected. The second study site is situated in Deûle river, close to the ancient smelter Metaleurop. Although suspended particles and sediments were strongly contaminated by Pb, Zn and Cd, the global quality of the filtered water was found to be good. As for the water-sediment interface, the oxidation of biodegradable organic matter and the reduction of iron and manganese oxides result in an important release of trace metals in interstitial waters from surface sediments. Nevertheless, measured and calculated diffusive and benthic fluxes of trace metals from the sediment to the water column were weak with respect to daily metal-concentrations variations in the water column. During monitoring campaigns in winter, it was shown that an increase of dissolved zinc occurred in the water column a few hours after sediment resuspension events, whereas in spring this phenomenon is more dependent upon temperature variations between day and night and phytoplankton activity as key parameters of daily cycles
Dessal, Caroline. "Influence de l'atmosphère réactive sur la stabilité structurale de catalyseurs Pt1 supporté et performances associées en oxydation de CO et photogénération d'hydrogène." Thesis, Lyon, 2018. http://www.theses.fr/2018LYSE1305/document.
This PhD work is focused on the study of ultradispersed catalysts, composed of nanometer-sized clusters or isolated atoms (single-atom catalysts, SACs) of metal, a new class of catalysts which are currently the object of worldwide interest. The Pt/?-Al2O3 and Pt/TiO2 systems were prepared, characterized and evaluated for CO oxidation and hydrogen photogeneration, respectively.Several methods of impregnation and thermal treatment were compared, in particular through platinum dispersion analysis using scanning electron microscopy (STEM). For the preparation of SACs, our choice finally turned to the incipient wetness impregnation of Pt(NH3)4(NO3)2 precursor at low loading, followed by calcination in air.For the two catalytic systems of interest, the study of the performances and the structural evolution of the catalysts during the reactions shows that isolated Pt atoms (cations) are less active than their (reduced) cluster counterparts.In the case of Pt/?-Al2O3, operando X-ray absorption spectroscopy (XAS) using synchrotron radiation, operando diffuse reflectance infrared spectroscopy (DRIFTS), and environmental microscopy (E-STEM) allowed us to monitor the SAC formation and destabilization, the latter being however limited in oxidizing conditions. Indeed, the presence of oxygen stabilizes single Pt atoms via the formation of several Pt-O-Al bonds as shown by DFT modeling, whereas the presence of a reducing compound (CO, H2) leads to the formation of Pt clusters, mobile on their support.This work highlights the possible limitations in the stabilization and implementation of SACs for catalytic reactions involving reducing conditions
Schmiedeberg-Sohn, Anke [Verfasser], and Katharina [Gutachter] Luttenberger. "Validierungsstudie des Erlangen Test of Activities of daily living in Mild dementia or Mild cognitive Impairment (ETAM) / Anke Schmiedeberg ; Gutachter: Katharina Luttenberger." Erlangen : Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 2017. http://d-nb.info/1144619114/34.
Schmiedeberg, Anke [Verfasser], and Katharina [Gutachter] Luttenberger. "Validierungsstudie des Erlangen Test of Activities of daily living in Mild dementia or Mild cognitive Impairment (ETAM) / Anke Schmiedeberg ; Gutachter: Katharina Luttenberger." Erlangen : Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 2017. http://d-nb.info/1144619114/34.
Haque, Md Ansarul, and Md Delwar Hossain. "Technology Survey of Wireless Communication for In-vehicle Applications." Thesis, Högskolan i Halmstad, Sektionen för Informationsvetenskap, Data– och Elektroteknik (IDE), 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-23389.
Gandois, Laure. "Dynamique et bilan des Elements Traces Métalliques (ETM) dans des écosystèmes forestiers français. Modélisation, spéciation et charges critiques." Phd thesis, Université Paul Sabatier - Toulouse III, 2009. http://tel.archives-ouvertes.fr/tel-00741901.
Metzler, Jacob W. "Use of Multi-temporal IKONOS and LANDSAT ETM+ Satellite Imagery to Determine Forest Stand Conditions in Northern Maine." Fogler Library, University of Maine, 2004. http://www.library.umaine.edu/theses/pdf/MetzlerJW2004.pdf.
Gandois, Laure. "Dynamique et bilan des éléments traces métalliques (ETM) dans des écosystèmes forestiers français : modélisation, spéciation et charges critiques." Toulouse 3, 2009. http://thesesups.ups-tlse.fr/810/.
Trace Metals (TM: Cd, Co, Cu, Cr, Ni, Pb, Sb and Zn) are dispersed in the atmosphere due to both natural and anthropogenic processes. Forest ecosystems can receive atmospheric inputs, even if they are located far from direct emission sources. In fact, forest ecosystems are particularly sensitive to atmospheric inputs since forest cover can interact with atmospheric pollution. Forest ecosystems are protected from TM atmospheric inputs through the definition of Critical Loads. TM impact on forest ecosystem is linked to their dynamic at the atmosphere/vegetation and soil/solution interfaces. Indeed, forest cover modifies atmospheric inputs. Moreover, it is through soil solution that TM are available to the biosphere and can reach ground and surface waters. During this work, TM content and speciation were determined in diverse compartments of the ecosystem (open field precipitation, throughfall, soil, soil solution and vegetation) on six forested catchments. TM partitioning between total and extractable content and soil solution, was studied in relation with soil parameters. PH was the most significant parameter for most TM extractability and solubility prediction. Cu and Pb solubility was also greatly influenced by complexation with organic colloids. Atmospheric inputs are moderate and regional differences reveal a stronger atmospheric influence on the North-East of France. Forest cover greatly modifies atmospheric inputs. Some fluxes (Cd, Ni, Cu and Zn) are reduced because of direct assimilation by forest canopy. Other fluxes (Pb, Cr and Sb) are increased following dry deposition accumulation on forest canopy. Elemental budget at the plot scale depend on soil type, TM solubility in soil solution and TM mobility in trees. Critical limits and loads have been evaluated and comparison with current soil solution concentration and atmospheric inputs revealed no exceedance
Almonacid, Caballer Jaime. "Obtención de líneas de costa con precisión sub-píxel a partir de imágenes Landsat (TM, ETM + y OLI)." Doctoral thesis, Universitat Politècnica de València, 2015. http://hdl.handle.net/10251/48462.
Almonacid Caballer, J. (2014). Obtención de líneas de costa con precisión sub-píxel a partir de imágenes Landsat (TM, ETM + y OLI) [Tesis doctoral no publicada]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/48462
TESIS
Premiado
Sayın, Adnan Koşar Alim. "Ratlarda testisten sperm elde etme yöntemlerinin (tesa, tese, tru-cut biopsi) testis ve epididim üzerindeki histopatolojik etkileri ile antisperm antikor deviyelerine etkilerinin karşılaştırılması /." Isparta : SDÜ Tıp Fakültesi, 2003. http://tez.sdu.edu.tr/Tezler/TT00099.pdf.
Příhoda, Stanislav. "Vztah EA a vybraných referenčních modelů." Master's thesis, Vysoká škola ekonomická v Praze, 2013. http://www.nusl.cz/ntk/nusl-162569.
Ramirez, Glaucia Miranda. "Comparação entre imagens pancromaticas do satelite Ikonos-II e Landsat/ETM + na identificação de plantios de cafe (Coffea arabica)." [s.n.], 2002. http://repositorio.unicamp.br/jspui/handle/REPOSIP/257232.
Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Agricola
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Resumo: O uso de técnicas de sensoriamento remoto orbital e geoprocessamento representa significativo avanço para os levantamentos de dados da agricultura, dados o seu caráter multiespectral e sua repetividade. Sua aplicação no monitoramento de culturas torna-se cada vez mais importante, principalmente com a possibilidade do uso de sensores de melhor resolução espacial, espectral, temporal e radiométrica. Este trabalho teve como objetivo a avaliação do impacto do aumento das resoluções espacial e radiométrica da imagem pancromática do IKONOS-II na identificação de plantios de café (Coffea arabica) e sua comparando com a imagem do LANDSAT/ETM+. A área de estudo está localizada no município de Pedregulho, na Fazenda Taquari, aonde foram selecionados 50 talhões com plantios de café, sendo levantados em campo dados referentes à altura, idade, espaçamento e variedade de cada talhão. A análise estatística utilizada para avaliar os dados das duas imagens (imagem do satélite IKONOS-II e do LANDSAT/ETM+, bandas 3, 4 e 5) foi o teste de Tukey e a análise de correlação. As imagens analisadas mostraram-se eficientes na identificação de talhões com características diferentes em campo, sendo que a imagem do IKONOS-II com valor de reflectância foi a que apresentou melhor desempenho. Para os talhões com características iguais em campo, as imagens analisadas não se mostraram eficientes, independentemente do satélite utilizado. As correções atmosférica e radiométrica na imagem do IKONOS-II não proporcionaram ganho nas análises realizadas. Cerca de 68% dos talhões identificados na imagem do IKONOS-II puderam ser localizados na imagem do LANDSAT/ETM+. A correlações significativas entre as bandas 3, 4 e 5 do LANDSAT/ETM+ e o canal pancromático do IKONOS-II indica uma forma de ligação entre as imagens dos dois satélites que permitirá aproveitar as vantagens de cada um na determinação da área plantada
Abstract: The use of orbital remote sensing and geoprocessing techniques represents significant advance for agriculture data surveying, considering its multispectral feature and repetitiveness. Its application for crop monitoring becomes more important, mainly with the possibility of using the sensors of high spatial, spectral, temporal and radiometric resolution. This work aimed the evaluation of the high spatial and radiometric resolutions from pancromatic images of IKONOS-II in the identification of coffee (Coffea arabica) planting areas, and its comparison to LANDSAT/ETM+ imagery. The study area is located in the city of Pedregulho, Taquari farm, where 50 coffee areas were selected. In each area it was collected information about plant¿s features, like height, age, spacing and variety. The statistic analysis used to evaluate the data (from IKONOS-II panchromatic imagery and from LANDSAT/ETM+, bands 3, 4 and 5) was done using Tukey¿s test and the correlation¿s analysis. According to the accomplished analysis, the images showed to be efficient in the identification of coffee areas with different field features, and the calibrated IKONOS-II image showed the best results. Considering the areas with similar field features, both analyzed satellite images didn¿t showed to be efficient in the coffee identification. The atmospheric and radiometric corrections applied on the IKONOS-II image didn¿t improve the analysis results. More than the half of the identified areas in the IKONOS-II image could be found in the LANDSAT/ETM+ image (68%). The significant correlation between LANDSAT/ETM+ (bands 3, 4 and 5) and IKONOS-II panchromatic channel shows a link between both satellite images
Mestrado
Planejamento e Desenvolvimento Rural Sustentável
Mestre em Engenharia Agrícola
Machado, Hermogenes Moura. "Determinação da biomassa de cana-de-açucar considerando a variação espacial de dados espcetrais do satelite Landsat 7 - ETM+." [s.n.], 2003. http://repositorio.unicamp.br/jspui/handle/REPOSIP/257164.
Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Agricola
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Resumo: O monitoramento e estimativa da quantidade de biomassa da cana-de-açúcar são de fundamental importância no planejamento das atividades de condução, colheita, transporte, processamento e comercialização da produção. Com o avanço tecnológico, técnicas de sensoriamento remoto têm-se mostrado úteis no monitoramento de áreas agrícolas onde se tem observado o potencial em especial do sistema Landsat no fornecimento de informações sobre a cultura da cana-de-açúcar. Dentre estas técnicas pode-se citar a aplicação de índices de vegetação obtidos através de transformação linear entre o valor espectral das diferentes bandas do sensor. Com o objetivo de avaliar a aplicação de imagens multiespectrais do satélite Landsat 7 - ETM+ e dos diversos índices de vegetação, no mapeamento da variação espacial da biomassa, e o seu potencial para estimativa da produtividade utilizando-se de um modelo matemático. O estudo foi desenvolvido nos municípios de Araras e Leme - SP. Para os dois anos de estudo foram analisadas duas passagens por ano, sendo a primeira anterior à colheita (fevereiro a abril) e a segunda dias antes da colheita. As imagens em nível de cinza foram transformadas em valores de reflectância aparente e, através da correção atmosférica, para valores de reflectância real. Sob a área de estudo foram distribuídas amostras de acordo com a variação espacial da resposta espectraL As amostras foram localizadas, demarcadas e colhidas.Foram realizadas análises de correlação entre os valores de produtividade e sua resposta espectraL A correção atmosférica não influenciou na correlação entre os dados de produtividade e a resposta espectraL As melhores correlações foram encontradas com os valores da banda 4 (IVP) e do índice de vegetação GVI. No primeiro ano de estudo os valores da banda 4 e do GVI explicaram respectivamente 51,6% e 52,66% da variação da produtividade. Enquanto que no segundo ano ambos explicaram 83% da variação da produtividade. O modelo polinomial de 2° grau foi o que melhor se adaptou ao comportamento dos dados de produtividade da cultura. A produtividade estimada pelo modelo apresentou um erro médio de 4,O4t/ha e um desvio padrão de 2,47t1ha, este resultado comprovou eficiência da utilização da resposta espectral no processo de estimativa da produtividade da cana-de-açúcar
Abstract: The monitoring and biomass estimate in sugar cane are the fundamental importance in leading, harvest, transport, processing and production marketing. With the technologic advanced techniques in remote sensing has showed very high potential in monitoring of sugarcane are as in special the Landsat system. Among these techniques it can to mention the application of the vegetation indices. Therefore that work has the objective of to evaluate the application of ETM+/Landsat 7 spectral images and different vegetation index to mapping biomass spatial variation and its potential for yield estimate using statistical model. The study was developed in Araras and Leme / SP counties at São João Mill in two years. During that time were analyzed two images per year, being the first before the harvest (February to April) and the second just some days before the harvest. The images in raw level had been transformed into values of apparent reflectance and through the atmospheric correction to values of real reflectance. Through the study area were allocated samples according the spectral response variation. After than this were full filled correlation analysis between yield and spectral response. The atmospheric correction hasn't provoked influence in the correlations. The best correlations had been found with the values of the band 4 (IVP) and of the index of vegetation GVI. In the first year of study band 4 and GVI indices values had explained 51.6% and 52.66% of the variation of the yield, respectively. While that in the second year both had explained 83% of the yield variation. The polynomial model of2° degree had the best agree in relation of the yield data behavior. The estimative productivity calculated by the model presented an average error of 4.04t/ha and a standard deviation of 2.47t/ha, attesting the efficiency of the use of the spectral response in the process of the yield estimate in sugar cane culture
Mestrado
Planejamento e Desenvolvimento Rural Sustentável
Mestre em Engenharia Agrícola
Clark, Joshua Taylor. "DISTRIBUTION OF EASTERN HEMLOCK, TSUGA CANADENSIS, IN EASTERN KENTUCKY AND THE SUSCEPTIBILITY TO INVASION BY THE HEMLOCK WOOLLY ADELGID, ADELGES TSUGAE." UKnowledge, 2010. http://uknowledge.uky.edu/gradschool_theses/1.
Blinn, Christine Elizabeth. "Increasing the Precision of Forest Area Estimates through Improved Sampling for Nearest Neighbor Satellite Image Classification." Diss., Virginia Tech, 2005. http://hdl.handle.net/10919/28694.
Ph. D.
Salgado, Rojas Mario Rolando. "Rediseño del Proceso de Atención a los Técnicos y Soporte a la PGI en Telefónica CTC Chile." Tesis, Universidad de Chile, 2009. http://repositorio.uchile.cl/handle/2250/102103.
Tittebrand, Antje. "Analysis of the spatial heterogeneity of land surface parameters and energy flux densities." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2011. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-71442.
Die vorliegende Arbeit wurde auf der Grundlage begutachteter Publikationen als kumulative Dissertation verfasst. Klimaprognosen basieren im Allgemeinen auf den Ergebnissen numerischer Simulationen mit globalen oder regionalen Klimamodellen. Eine der entscheidenden Unsicherheiten bestehender Modelle liegt in dem noch unzureichenden Verständnis von Wechselwirkungsprozessen zwischen der Atmosphäre und Landoberflächen und dem daraus folgenden Fehlen entsprechender Parametrisierungen. Um das Problem einer unsicheren Modell-Parametrisierung aufzugreifen und zum Beispiel subskalige Heterogenität in einer Art und Weise zu beschreiben, dass sie für Modelle nutzbar wird, werden für die Bestimmung und Evaluierung von Modell-Parametrisierungsansätzen so viele Datensätze wie möglich benötigt. Die Arbeit trägt zu diesem Thema durch die Verwendung verschiedener Datensätze unterschiedlicher Plattformen bei. Ziel der Studie war es, aus Satellitendaten verschiedener räumlicher und zeitlicher Auflösung sowie aus in-situ Daten die räumliche Heterogenität von Landoberflächenparametern und Energieflussdichten zu bestimmen. Die Untersuchungen wurden für zwei Zielgebiete in Deutschland durchgeführt. Für das LITFASS-Gebiet (Lindenberg Inhomogeneous Terrain - Fluxes between Atmosphere and Surface: a longterm Study) wurden Satellitendaten der Jahre 2002 und 2003 untersucht und validiert. Zusätzlich wurde im Rahmen dieser Arbeit eine NDVI-Studie (Normalisierter Differenzen Vegetations Index: Maß zur Detektierung von Vegetationflächen, deren Vitalität und Dichte) auf den Testflächen des FLUXNET Clusters um Tharandt in den Jahren 2006 und 2007 realisiert. Die Grundlage der Arbeit bildete die Bestimmung von Landoberflächeneigenschaften und daraus resultierenden Energieflüssen, auf Basis dreier optischer Sensoren (ETM+ (Enhanced Thematic Mapper), MODIS (Moderate Resolution Imaging Spectroradiometer) und AVHRR 3 (Advanced Very High Resolution Radiometer)) mit unterschiedlichen räumlichen (30 m – 1 km) und zeitlichen (1 – 16 Tage) Auflösungen. Unterschiedliche Sensorcharakteristiken, sowie die Verwendung verschiedener, zum Teil ungenauer Datensätze zur Landnutzungsklassifikation führen zu Abweichungen in den Ergebnissen der einzelnen Sensoren. Durch die Quantifizierung der Sensorunterschiede, die Anpassung der Ergebnisse der Sensoren aneinander und eine Qualitätsanalyse von verschiedenen Landnutzungsklassifikationen, wurde eine Basis für eine vergleichbare Parametrisierung der Oberflächenparameter und damit auch für die daraus berechneten Energieflüsse geschaffen. Der Schwerpunkt lag dabei auf der Bestimmung des latenten Wärmestromes (L.E) mit Hilfe des Penman-Monteith Ansatzes (P-M). Satellitendaten liefern Messwerte der spektralen Reflexion und der Oberflächentemperatur. Die P-M Gleichung erfordert weitere Oberflächenparameter wie zum Beispiel den NDVI, den Blattflächenindex (LAI), die Windgeschwindigkeit, die relative Luftfeuchte, die Vegetationshöhe oder die Rauhigkeitslänge, die jedoch aus den Satellitendaten nicht bestimmt werden können. Sie müssen indirekt aus den oben genannten Messgrößen der Satelliten oder aus in-situ Messungen abgeleitet werden. Stehen auch aus diesen Quellen keine Daten zur Verfügung, können sogenannte Standard- (Default-) Werte aus der Literatur verwendet werden. Die Qualität dieser Parameter hat einen großen Einfluss auf die Bestimmung der Strahlungs- und Energieflüsse. Sensitivitätsstudien im Rahmen der Arbeit zeigen die Bedeutung des NDVI als einen der wichtigsten Parameter in der Verdunstungsbestimmung nach P-M. Im Gegensatz dazu wurde deutlich, dass z. B. die Vegetationshöhe und die Messhöhe einen relativ kleinen Einfluss auf L.E haben, so dass für diese Parameter die Verwendung von Standardwerten gerechtfertigt ist. Aufgrund der Schlüsselrolle, welche der NDVI in der Bestimmung der Verdunstung einnimmt, wurden im Rahmen einer Feldstudie Untersuchungen des NDVI über fünf verschiedenen Landnutzungstypen (Winterweizen, Mais, Gras, Buche und Fichte) hinsichtlich seiner räumlichen Variabilität und Sensitivität, unternommen. Dabei wurden verschiedene Bestimmungsmethoden getestet, in welchen der NDVI nicht nur aus Satellitendaten (spektral), sondern auch aus in-situ Turmmessungen (breitbandig) und Spekrometermessungen (spektral) ermittelt wird. Die besten Übereinstimmungen der Ergebnisse wurden dabei für Winterweizen und Gras für das Jahr 2006 gefunden. Für diese Landnutzungstypen betrugen die Maximaldifferenzen aus den drei Methoden jeweils 10 beziehungsweise 15 %. Deutlichere Differenzen ließen sich für die Forstflächen verzeichnen. Die Korrelation zwischen Satelliten- und Spektrometermessung betrug r=0.67. Für Satelliten- und Turmmessungen ergab sich ein Wert von r=0.5. Basierend auf den beschriebenen Vorarbeiten wurde die räumliche Variabilität von Landoberflächenparametern und Flüssen untersucht. Die unterschiedlichen räumlichen Auflösungen der Satelliten können genutzt werden, um zum einen die subskalige Heterogenität zu beschreiben, aber auch, um den Effekt räumlicher Mittelungsverfahren zu testen. Dafür wurden Parameter und Energieflüsse in Abhängigkeit der Landnutzungsklasse untersucht, um typische Verteilungsmuster dieser Größen zu finden. Die Verwendung der Verteilungsmuster (in Form von Wahrscheinlichkeitsdichteverteilungen – PDFs), die für die Albedo und den NDVI aus ETM+ Daten gefunden wurden, bietet ein hohes Potential als Modellinput, um repräsentative PDFs der Energieflüsse auf gröberen Skalen zu erhalten. Die ersten Ergebnisse in der Verwendung der PDFs von Albedo, NDVI, relativer Luftfeuchtigkeit und Windgeschwindigkeit für die Bestimmung von L.E waren sehr ermutigend und zeigten das hohe Potential der Methode. Zusammenfassend lässt sich feststellen, dass die Methode der Ableitung von Oberflächenparametern und Energieflüssen aus Satellitendaten zuverlässige Daten auf verschiedenen zeitlichen und räumlichen Skalen liefert. Die Daten sind für eine detaillierte Analyse der räumlichen Variabilität der Landschaft und für die Beschreibung der subskaligen Heterogenität, wie sie oft in Modellanwendungen benötigt wird, geeignet. Ihre Nutzbarkeit als Inputparameter in Modellen auf verschiedenen Skalen ist das zweite wichtige Ergebnis der Arbeit. Aus Satellitendaten abgeleitete Vegetationsparameter wie der LAI oder die Pflanzenbedeckung liefern realistische Ergebnisse, die zum Beispiel als Modellinput in das Lokalmodell des Deutschen Wetterdienstes implementiert werden konnten und die Modellergebnisse von L.E signifikant verbessert haben. Aber auch thermale Parameter, wie beispielsweise die Oberflächentemperatur aus ETM+ Daten in 30 m Auflösung, wurden als Eingabeparameter eines Soil-Vegetation-Atmosphere-Transfer-Modells (SVAT) verwendet. Dadurch erhält man realistischere Ergebnisse für L.E, die hochaufgelöste Flächeninformationen bieten
Tittebrand, Antje. "Analysis of the spatial heterogeneity of land surface parameters and energy flux densities." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2010. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-33443.
Die vorliegende Arbeit wurde auf der Grundlage begutachteter Publikationen als kumulative Dissertation verfasst. Klimaprognosen basieren im Allgemeinen auf den Ergebnissen numerischer Simulationen mit globalen oder regionalen Klimamodellen. Eine der entscheidenden Unsicherheiten bestehender Modelle liegt in dem noch unzureichenden Verständnis von Wechselwirkungsprozessen zwischen der Atmosphäre und Landoberflächen und dem daraus folgenden Fehlen entsprechender Parametrisierungen. Um das Problem einer unsicheren Modell-Parametrisierung aufzugreifen und zum Beispiel subskalige Heterogenität in einer Art und Weise zu beschreiben, dass sie für Modelle nutzbar wird, werden für die Bestimmung und Evaluierung von Modell-Parametrisierungsansätzen so viele Datensätze wie möglich benötigt. Die Arbeit trägt zu diesem Thema durch die Verwendung verschiedener Datensätze unterschiedlicher Plattformen bei. Ziel der Studie war es, aus Satellitendaten verschiedener räumlicher und zeitlicher Auflösung sowie aus in-situ Daten die räumliche Heterogenität von Landoberflächenparametern und Energieflussdichten zu bestimmen. Die Untersuchungen wurden für zwei Zielgebiete in Deutschland durchgeführt. Für das LITFASS-Gebiet (Lindenberg Inhomogeneous Terrain - Fluxes between Atmosphere and Surface: a longterm Study) wurden Satellitendaten der Jahre 2002 und 2003 untersucht und validiert. Zusätzlich wurde im Rahmen dieser Arbeit eine NDVI-Studie (Normalisierter Differenzen Vegetations Index: Maß zur Detektierung von Vegetationflächen, deren Vitalität und Dichte) auf den Testflächen des FLUXNET Clusters um Tharandt in den Jahren 2006 und 2007 realisiert. Die Grundlage der Arbeit bildete die Bestimmung von Landoberflächeneigenschaften und daraus resultierenden Energieflüssen, auf Basis dreier optischer Sensoren (ETM+ (Enhanced Thematic Mapper), MODIS (Moderate Resolution Imaging Spectroradiometer) und AVHRR 3 (Advanced Very High Resolution Radiometer)) mit unterschiedlichen räumlichen (30 m – 1 km) und zeitlichen (1 – 16 Tage) Auflösungen. Unterschiedliche Sensorcharakteristiken, sowie die Verwendung verschiedener, zum Teil ungenauer Datensätze zur Landnutzungsklassifikation führen zu Abweichungen in den Ergebnissen der einzelnen Sensoren. Durch die Quantifizierung der Sensorunterschiede, die Anpassung der Ergebnisse der Sensoren aneinander und eine Qualitätsanalyse von verschiedenen Landnutzungsklassifikationen, wurde eine Basis für eine vergleichbare Parametrisierung der Oberflächenparameter und damit auch für die daraus berechneten Energieflüsse geschaffen. Der Schwerpunkt lag dabei auf der Bestimmung des latenten Wärmestromes (L.E) mit Hilfe des Penman-Monteith Ansatzes (P-M). Satellitendaten liefern Messwerte der spektralen Reflexion und der Oberflächentemperatur. Die P-M Gleichung erfordert weitere Oberflächenparameter wie zum Beispiel den NDVI, den Blattflächenindex (LAI), die Windgeschwindigkeit, die relative Luftfeuchte, die Vegetationshöhe oder die Rauhigkeitslänge, die jedoch aus den Satellitendaten nicht bestimmt werden können. Sie müssen indirekt aus den oben genannten Messgrößen der Satelliten oder aus in-situ Messungen abgeleitet werden. Stehen auch aus diesen Quellen keine Daten zur Verfügung, können sogenannte Standard- (Default-) Werte aus der Literatur verwendet werden. Die Qualität dieser Parameter hat einen großen Einfluss auf die Bestimmung der Strahlungs- und Energieflüsse. Sensitivitätsstudien im Rahmen der Arbeit zeigen die Bedeutung des NDVI als einen der wichtigsten Parameter in der Verdunstungsbestimmung nach P-M. Im Gegensatz dazu wurde deutlich, dass z. B. die Vegetationshöhe und die Messhöhe einen relativ kleinen Einfluss auf L.E haben, so dass für diese Parameter die Verwendung von Standardwerten gerechtfertigt ist. Aufgrund der Schlüsselrolle, welche der NDVI in der Bestimmung der Verdunstung einnimmt, wurden im Rahmen einer Feldstudie Untersuchungen des NDVI über fünf verschiedenen Landnutzungstypen (Winterweizen, Mais, Gras, Buche und Fichte) hinsichtlich seiner räumlichen Variabilität und Sensitivität, unternommen. Dabei wurden verschiedene Bestimmungsmethoden getestet, in welchen der NDVI nicht nur aus Satellitendaten (spektral), sondern auch aus in-situ Turmmessungen (breitbandig) und Spekrometermessungen (spektral) ermittelt wird. Die besten Übereinstimmungen der Ergebnisse wurden dabei für Winterweizen und Gras für das Jahr 2006 gefunden. Für diese Landnutzungstypen betrugen die Maximaldifferenzen aus den drei Methoden jeweils 10 beziehungsweise 15 %. Deutlichere Differenzen ließen sich für die Forstflächen verzeichnen. Die Korrelation zwischen Satelliten- und Spektrometermessung betrug r=0.67. Für Satelliten- und Turmmessungen ergab sich ein Wert von r=0.5. Basierend auf den beschriebenen Vorarbeiten wurde die räumliche Variabilität von Landoberflächenparametern und Flüssen untersucht. Die unterschiedlichen räumlichen Auflösungen der Satelliten können genutzt werden, um zum einen die subskalige Heterogenität zu beschreiben, aber auch, um den Effekt räumlicher Mittelungsverfahren zu testen. Dafür wurden Parameter und Energieflüsse in Abhängigkeit der Landnutzungsklasse untersucht, um typische Verteilungsmuster dieser Größen zu finden. Die Verwendung der Verteilungsmuster (in Form von Wahrscheinlichkeitsdichteverteilungen – PDFs), die für die Albedo und den NDVI aus ETM+ Daten gefunden wurden, bietet ein hohes Potential als Modellinput, um repräsentative PDFs der Energieflüsse auf gröberen Skalen zu erhalten. Die ersten Ergebnisse in der Verwendung der PDFs von Albedo, NDVI, relativer Luftfeuchtigkeit und Windgeschwindigkeit für die Bestimmung von L.E waren sehr ermutigend und zeigten das hohe Potential der Methode. Zusammenfassend lässt sich feststellen, dass die Methode der Ableitung von Oberflächenparametern und Energieflüssen aus Satellitendaten zuverlässige Daten auf verschiedenen zeitlichen und räumlichen Skalen liefert. Die Daten sind für eine detaillierte Analyse der räumlichen Variabilität der Landschaft und für die Beschreibung der subskaligen Heterogenität, wie sie oft in Modellanwendungen benötigt wird, geeignet. Ihre Nutzbarkeit als Inputparameter in Modellen auf verschiedenen Skalen ist das zweite wichtige Ergebnis der Arbeit. Aus Satellitendaten abgeleitete Vegetationsparameter wie der LAI oder die Pflanzenbedeckung liefern realistische Ergebnisse, die zum Beispiel als Modellinput in das Lokalmodell des Deutschen Wetterdienstes implementiert werden konnten und die Modellergebnisse von L.E signifikant verbessert haben. Aber auch thermale Parameter, wie beispielsweise die Oberflächentemperatur aus ETM+ Daten in 30 m Auflösung, wurden als Eingabeparameter eines Soil-Vegetation-Atmosphere-Transfer-Modells (SVAT) verwendet. Dadurch erhält man realistischere Ergebnisse für L.E, die hochaufgelöste Flächeninformationen bieten
Troutet, Yann. "L'analyse par objets spatiaux d'une image ETM+ de Landsat au service de l'inventaire écologique du parc national du Canada Auyuittuq." Mémoire, Université de Sherbrooke, 2009. http://savoirs.usherbrooke.ca/handle/11143/383.
Cobbing, Benedict Louis. "The use of Landsat ETM imagery as a suitable data capture source for alien acacia species for the WFW programme." Thesis, Rhodes University, 2007. http://hdl.handle.net/10962/d1005532.
Mildner, Stephanie [Verfasser], Christian [Akademischer Betreuer] Jooß, Michael [Akademischer Betreuer] Seibt, and Peter [Akademischer Betreuer] Crozier. "Pr1-xCaxMnO3 for Catalytic Water Splitting - Optical Properties and In Situ ETEM Investigations / Stephanie Mildner. Gutachter: Christian Jooß ; Michael Seibt ; Peter Crozier. Betreuer: Christian Jooß." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2015. http://d-nb.info/1076673627/34.
Bayer, Anna Theresa [Verfasser], and Ulrich [Akademischer Betreuer] Schüller. "Herunterregulation des Mikro-RNA-Clusters auf Chromosom 19 (C19MC) in Tumorzellen eines embryonalen Tumors mit mehrschichtigen Rosetten (ETMR) in vitro / Anna Theresa Bayer ; Betreuer: Ulrich Schüller." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2019. http://d-nb.info/1200852184/34.