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Dissertations / Theses on the topic 'Bio-optical model'

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1

Kerrigan, Kristi Lisa. "Development of a regional bio-optical model for water quality assessment in the US Virgin Islands." Thesis, College of Charleston, 2015. http://pqdtopen.proquest.com/#viewpdf?dispub=1605329.

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<p>Previous research in the US Virgin Islands (USVI) has demonstrated that land-based sources of pollution associated with watershed development and climate change are local and global factors causing coral reef degradation. A good indicator that can be used to assess stress on these environments is the water quality. Conventional assessment methods based on <i>in situ</i> measurements are timely and costly. Satellite remote sensing techniques offer better spatial coverage and temporal resolution to accurately characterize the dynamic nature of water quality parameters by applying bio-optical
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2

Carmo, Alisson Fernando Coelho do. "Three-dimensional modeling of inland waters optical properties from aerial hyperspectral images /." Presidente Prudente, 2019. http://hdl.handle.net/11449/191338.

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Orientador: Nilton Nobuhiro Imai<br>Abstract: The acquisition of data using Remote Sensing and in-situ sampling allows several data sources to be integrated for the analysis and observations of environmental characteristics and may require computational methods to support the data processing, exploration and analysis. The need to integrate data from different sources is highlighted in studies of dynamic and complex environments that frequently change, such as hydroelectric reservoirs. Reservoirs are artificial ecosystems, which influence directly the regional characteristics, mainly because of
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3

Ametistova, Lioudmila. "Ocean Colour Remote Sensing of Flood Plumes in the Great Barrier Reef." University of Sydney. Department of Civil Engineering, 2004. http://hdl.handle.net/2123/647.

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The objective of the research reported in this thesis was to develop a technique to monitor the dynamics of sediments and nutrients entering the coastal ocean with river plumes associated with high intensity low frequency events (e.g. floods), using ocean colour remote sensing. To achieve this objective, an inverse bio-optical model was developed, based on analytical and empirical relationships between concentrations of optically significant substances and remote sensing of water-leaving radiance. The model determines concentrations of water-colouring substances such as chlorophyll, susp
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4

Gonçalves, Stela Rosa Amaral [UNESP]. "Análise espaço-temporal de carbono orgânico dissolvido colorido no reservatório de Barra Bonita/SP." Universidade Estadual Paulista (UNESP), 2016. http://hdl.handle.net/11449/143046.

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Submitted by STELA ROSA AMARAL GONÇALVES (stelinhaamaral@hotmail.com) on 2016-08-12T03:20:24Z No. of bitstreams: 1 Dissertação_final_imai_v3.pdf: 3555316 bytes, checksum: b4386413378a1a29e513286831a880a2 (MD5)<br>Approved for entry into archive by Ana Paula Grisoto (grisotoana@reitoria.unesp.br) on 2016-08-15T14:30:47Z (GMT) No. of bitstreams: 1 goncalves_sra_me_prud.pdf: 3555316 bytes, checksum: b4386413378a1a29e513286831a880a2 (MD5)<br>Made available in DSpace on 2016-08-15T14:30:47Z (GMT). No. of bitstreams: 1 goncalves_sra_me_prud.pdf: 3555316 bytes, checksum: b4386413378a1a29e5132868
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Watanabe, Fernanda Sayuri Yoshino [UNESP]. "Parameterization of bio-optical models for estimating chlorophyll-a concentration in a tropical eutrophic reservoir." Universidade Estadual Paulista (UNESP), 2016. http://hdl.handle.net/11449/138176.

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Submitted by Fernanda Sayuri Yoshino Watanabe null (fernandasyw@yahoo.com.br) on 2016-04-28T12:54:41Z No. of bitstreams: 1 Watanabe_tese.pdf: 3879331 bytes, checksum: f393ffe1bbc36d214f1bed6945d9dedd (MD5)<br>Approved for entry into archive by Felipe Augusto Arakaki (arakaki@reitoria.unesp.br) on 2016-05-02T12:36:43Z (GMT) No. of bitstreams: 1 watanabe_fsy_dr_prud.pdf: 3879331 bytes, checksum: f393ffe1bbc36d214f1bed6945d9dedd (MD5)<br>Made available in DSpace on 2016-05-02T12:36:43Z (GMT). No. of bitstreams: 1 watanabe_fsy_dr_prud.pdf: 3879331 bytes, checksum: f393ffe1bbc36d214f1bed6945d9d
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6

Culver, Mary Evans. "Applications of chlorophyll a fluorescence in bio-optical models of phytoplankton biomass and productivity / by Mary Evans Culver." Thesis, Connect to this title online; UW restricted, 1996. http://hdl.handle.net/1773/10966.

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7

SEGALA, AGNESE. "Multidimensional approach to Frailty Syndrome of the elderly: preclinical study in a mouse model and set up of a novel optical diagnostic technique in humans." Doctoral thesis, Università degli studi di Brescia, 2021. http://hdl.handle.net/11379/550296.

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Multidimensional approach to Frailty Syndrome of the elderly: preclinical study in a mouse model and set up of a novel optical diagnostic technique in humans<br>Multidimensional approach to Frailty Syndrome of the elderly: preclinical study in a mouse model and set up of a novel optical diagnostic technique in humans
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8

Strömbeck, Niklas. "Water Quality and Optical Properties of Swedish Lakes and Coastal Waters in Relation to Remote Sensing." Doctoral thesis, Uppsala University, Department of Evolutionary Biology, 2001. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-670.

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<p>Semi-analytical models for remote sensing of water quality parameters need to be parameterized with specific inherent optical properties. In this thesis, data on specific inherent optical properties of Swedish lakes and coastal waters is presented. Also, the problems of measuring in situ spectral backscattering are addressed. It is shown how measured specific inherent optical properties are used to parameterize semi-analytical bio-optical models. The models are then used to produce large synthetic data sets based on the distribution of water quality parameters, and from these data sets, ban
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9

Raman, Baranidharan. "Sensor-based machine olfaction with neuromorphic models of the olfactory system." Diss., Texas A&M University, 2005. http://hdl.handle.net/1969.1/4984.

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Electronic noses combine an array of cross-selective gas sensors with a pattern recognition engine to identify odors. Pattern recognition of multivariate gas sensor response is usually performed using existing statistical and chemometric techniques. An alternative solution involves developing novel algorithms inspired by information processing in the biological olfactory system. The objective of this dissertation is to develop a neuromorphic architecture for pattern recognition for a chemosensor array inspired by key signal processing mechanisms in the olfactory system. Our approach can be sum
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10

Corneci, Magdalena Carla. "Fonctionnement tribologique des articulations synoviales pathologiques : Rôle des interfaces phospholipidiques." Thesis, Lyon, INSA, 2012. http://www.theses.fr/2012ISAL0083.

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Afin d’améliorer l’efficacité des traitements des pathologies articulaires, en tenant compte de leur complexité et de leur ampleur, des études récentes ont mis en évidence le rôle des assemblages lipidiques associés à la structure discontinue du fluide synovial dans le contrôle du fonctionnement tribologique articulaire. Ceci à conduit à la mise au point d’un modèle tribologique ex vivo (thèse AM Sfarghiu, 2006), proposant un « motif élémentaire » de la biolubrification articulaire, constitué de l’empilement d’interfaces phospholipidiques et de couches aqueuses. En utilisant ce modèle, l’objec
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11

Gomes, Ana Carolina Campos [UNESP]. "Retrieval of euphotic zone and Secchi disk depth in Bariri reservoir using OLI/Landsat-8 data." Universidade Estadual Paulista (UNESP), 2018. http://hdl.handle.net/11449/153657.

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Submitted by Ana Carolina Campos Gomes (carol.campos01@hotmail.com) on 2018-04-20T17:35:54Z No. of bitstreams: 1 AnaCarolina.pdf: 2801427 bytes, checksum: 1809e31f1376c275f1b3a1c9eca5cf6f (MD5)<br>Approved for entry into archive by Claudia Adriana Spindola null (claudia@fct.unesp.br) on 2018-04-20T19:06:20Z (GMT) No. of bitstreams: 1 gomes_acc_me_prud.pdf: 2801427 bytes, checksum: 1809e31f1376c275f1b3a1c9eca5cf6f (MD5)<br>Made available in DSpace on 2018-04-20T19:06:20Z (GMT). No. of bitstreams: 1 gomes_acc_me_prud.pdf: 2801427 bytes, checksum: 1809e31f1376c275f1b3a1c9eca5cf6f (MD5) Pre
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12

Moutier, William. "Utilisation de la cytométrie en flux pour une meilleure connaissance de la diffusion individuelle des particules : Application au phytoplancton." Thesis, Littoral, 2016. http://www.theses.fr/2016DUNK0439/document.

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L'objectif était d'utiliser le cytomètre en flux (Cytosense, CytoBuoy b.v., NL) afin de comprendre l'influence des paramètres structurels et morphologiques des cellules phytoplanctoniques sur la rétrodiffusion. Nous avons analysé les propriétés optiques des cellules sur différentes phases de croissance. Une expérience en microcosme a été réalisée sur deux espèces (Thalassiosira pseudonana et Chlamydomonas Concordia) durant 20 jours. Les efficacités de diffusion avant et de côté de Thalassiosira pseudonana étaient respectivement 2,2 et 1,6 fois plus importantes que celles de Chlamydomonas Conco
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13

Martins, Sarah Cristina Araújo [UNESP]. "The aCDOM spatial and temporal distribution analysis in Funil reservoir." Universidade Estadual Paulista (UNESP), 2017. http://hdl.handle.net/11449/151454.

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Submitted by SARAH CRISTINA ARAUJO MARTINS null (sarahca.martins@gmail.com) on 2017-08-27T12:54:53Z No. of bitstreams: 1 Dissertacao_MartinsSarah.pdf: 3974138 bytes, checksum: 73a1c2c28d4a0cbbde72b9e8a49211ce (MD5)<br>Approved for entry into archive by Luiz Galeffi (luizgaleffi@gmail.com) on 2017-08-29T17:18:44Z (GMT) No. of bitstreams: 1 martins_sca_me_prud.pdf: 3974138 bytes, checksum: 73a1c2c28d4a0cbbde72b9e8a49211ce (MD5)<br>Made available in DSpace on 2017-08-29T17:18:44Z (GMT). No. of bitstreams: 1 martins_sca_me_prud.pdf: 3974138 bytes, checksum: 73a1c2c28d4a0cbbde72b9e8a49211ce (MD
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Li, Linhai. "A transferable bio-optical model for quantification of inland water caynobacterial pigments." Thesis, 2012. http://hdl.handle.net/1805/2739.

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Indiana University-Purdue University Indianapolis (IUPUI)<br>Cyanobacterial blooms are currently one of the most important issues faced by environmental agencies, water authorities and public health organizations. Remote sensing provides an advanced approach to monitor cyanobacteria by detecting and quantifying chlorophyll-a (Chl-a) and phycocaynin (PC). In this thesis, an analytical bio-optical model, more typically applied to ocean waters, was modified to accommodate the complexity of inland waters. The newly developed models work well to estimate inherent optical properties, including absor
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15

Chang, Chih-Hua, and 張智華. "Integrating and application of nonpoint source pollution model with bio-optical approach." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/33448518891092008639.

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博士<br>國立成功大學<br>環境工程學系碩博士班<br>96<br>Nutrient overenrichment (eutrophication) is the major cause of decline in overall water qualities of lakes and reservoirs. Since the watershed nonpoint sources (NPS) pollution is the primary source of nutrient and sediment loads, the study of the linkage between NPS pollution and lake/reservoir water quality is essential and of importance. With an intention to perform better assessments of the linkage, this study was divided into two parts: for a better estimation of NPS loads, collecting representative data and using appropriate models; and for a better eva
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16

Min-ZhangLi and 李旻展. "Integrating watershed and bio-optical models for linking catchment loading to the depth of Secchi-disk: a case study in Agongdian Reservoir." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/q78hp2.

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碩士<br>國立成功大學<br>環境工程學系<br>106<br>Eutrophication is a common water quality problem of reservoirs in south Taiwan, and most of reservoirs which was identified as the eutrophic reservoir because of low transparency instead of chlorophyll-a. The cause of low transparency are mainly high concentration of suspended solids instead of chlorophyll-a. The strategy of restoring eutrophic reservoirs must be based on science as integrating watershed and bio-optical models for liking catchment loading to the depth of Secchi disk to simulate different load reduction scenarios. Therefore, this study was integ
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17

Tam, Chi-Kin, and 譚子健. "Application of bio-optical models and FORMOSAT-2 Remote Sensing Imagery to study the temporal and spatial distribution of water quality in Tseng-Wen Reservoir." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/13578791559707703687.

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碩士<br>國立成功大學<br>環境工程學系碩博士班<br>95<br>Monitoring the water quality is an essential work for evaluating the reservoir condition, monitoring the drinking water safety, analyzing the contaminant source, and indicating the eutrophicated status. The data collected by the traditional approach of sampling at a few stations on certain dates, however, is limited both in time and space. As a result, such data is not able to provide the temporal and spatial information for the entire water reservoir.. In this study, both the in-situ measurement of spectral reflectance and the technique of image processing
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