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Relevant bibliographies by topics / Large spatial scales / Dissertations / Theses

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Dissertations / Theses on the topic 'Large spatial scales'

Author: Grafiati

Published: 4 June 2021

Last updated: 8 June 2024

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1

Feldman, Richard. "Toward a theory of abundance at large spatial scales." Thesis, McGill University, 2011. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=104707.

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Fundamentally, ecology is the study of the diversity, distribution, and abundance of organisms. Recent advances in technology coupled with expanding research goals have lead to studies of how the first two of these properties vary over large spatial scales. There has been relatively few cases documenting large scale spatial variation in abundance and very little theoretical development explaining such variation. Yet a general pattern exists: a species is abundant in very few places and rare in most places in its range. Current theory suggests that such a pattern of abundance reflects underlyin

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2

Monroe, Emy M. "Population Genetics and Phylogeography of Two Large-River Freshwater Mussel Species at Large and Small Spatial Scales." Miami University / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=miami1218129323.

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3

Turner, Sara M. "Understanding river herring movement patterns at small and large spatial scales through geochemical markers." Thesis, State University of New York Col. of Environmental Science & Forestry, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=3628508.

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<p> Environmentally-derived elemental and isotopic ratios in the otoliths of anadromous river herring (alewife, <i>Alosa pseudoharengus,</i> and blueback herring, <i>A. aestivalis</i>) were used to distinguish among groups of fish at spatial scales ranging from sub-populations within a watershed to populations from throughout the species' ranges. These ratios were also used to understand early life migrations and habitat use within and among populations. Sub-populations within the Hudson River, NY were accurately distinguished (> 95%), and populations from the Hudson River and Long Island, NY

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4

Gallienne, Christopher Paul. "The development of novel techniques for characterisation of marine zooplankton over very large spatial scales." Thesis, University of Plymouth, 1997. http://hdl.handle.net/10026.1/1727.

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Marine zooplankton play an important role in the transfer of CO2 from the atmosphere/ocean system to deeper waters and the sediments. They also provide food for much of the world's fish stocks and in some areas of the ocean depleted of nutrients they sustain phytoplankton growth by recycling nutrients. They therefore have a profound effect on the carbon cycle and upon life in the oceans. There is a perceived lack of information about global distributions of zooplankton needed to validate ecosystems dynamics models, and the traditional methods of survey are inadequate to provide this informatio

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5

Hoult, Crispin. "The requirements, implementation and use of a generic foundation dataset for large-scales spatial data management." Thesis, University of Newcastle Upon Tyne, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.295514.

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6

Golinkoff, Jordan Seth. "Estimation and modeling of forest attributes across large spatial scales using BiomeBGC, high-resolution imagery, LiDAR data, and inventory data." Thesis, University of Montana, 2013. http://pqdtopen.proquest.com/#viewpdf?dispub=3568103.

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<p> The accurate estimation of forest attributes at many different spatial scales is a critical problem. Forest landowners may be interested in estimating timber volume, forest biomass, and forest structure to determine their forest's condition and value. Counties and states may be interested to learn about their forests to develop sustainable management plans and policies related to forests, wildlife, and climate change. Countries and consortiums of countries need information about their forests to set global and national targets to deal with issues of climate change and deforestation as well

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7

Vercelloni, Julie. "Quantifying the state of populations and effects of disturbances at large spatio-temporal scales: The case of coral populations in the great barrier reef." Thesis, Queensland University of Technology, 2015. https://eprints.qut.edu.au/87812/1/Julie_Vercelloni_Thesis.pdf.

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This project was a step forward in applying statistical methods and models to provide new insights for more informed decision-making at large spatial scales. The model has been designed to address complicated effects of ecological processes that govern the state of populations and uncertainties inherent in large spatio-temporal datasets. Specifically, the thesis contributes to better understanding and management of the Great Barrier Reef.

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8

Bhowmik, Avit Kumar [Verfasser], Ralf B. [Akademischer Betreuer] Schäfer, and Thomas [Gutachter] Horvath. "Human and Ecological Impacts of Freshwater Degradation on Large Scales. Development and Integration of Spatial Models with Ecological Models for Spatial-ecological Analyses / Avit Kumar Bhowmik. Betreuer: Ralf B. Schäfer. Gutachter: Thomas Horvath." Landau : Universität Koblenz-Landau, Campus Landau, 2015. http://d-nb.info/1107775760/34.

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9

Padié, Sophie. "Réponse des cervidés à la chasse : stratégies d’utilisation de l’espace à multiples échelles et conséquences sur la végétation." Thesis, Montpellier 2, 2014. http://www.theses.fr/2014MON20185.

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La chasse – comme la prédation naturelle - induit des réponses comportementales par les individus chassés qui cherchent ainsi à éviter ou à reduire le risque. Il est en particulier fréquent d'observer un changement dans leur utilisation de l'espace, mais l'articulation et les déterminants des réponses aux différentes échelles spatiales restent mal compris. De même, s'il a été suggéré que ces modifications comportementales pouvaient affecter en cascade la végétation, cela reste à tester. Pour combler ces lacunes, j'ai, (1) étudié, dans un paysage agricole du sud de la France, une population cha

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10

Papin, Morgane. "Apport de la bioacoustique pour le suivi d’une espèce discrète : le Loup gris (Canis lupus)." Thesis, Université de Lorraine, 2018. http://www.theses.fr/2018LORR0258/document.

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Le nombre croissant de travaux réalisés ces dernières années a montré que la bioacoustique est particulièrement intéressante pour le suivi d’espèces discrètes. L’émergence de dispositifs d’enregistrement autonomes, associée à de nouvelles méthodes d’analyse, ont récemment participé à l’accroissement des études dans ce domaine. Au cours des 30 dernières années, le Loup gris (Canis lupus), mammifère carnivore aux mœurs discrètes connu pour ses hurlements de longue portée, a fait l’objet de nombreuses études acoustiques. Ces dernières visaient notamment à améliorer son suivi, qui s’avère complexe

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11

Falloon, Peter Daniel. "Large scale spatial modelling of soil organic carbon dynamics." Thesis, University of Nottingham, 2001. http://eprints.nottingham.ac.uk/12338/.

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Under the Kyoto Protocol, participating nations are required to reduce National CO₂emissions according to their 'reduction commitment' or 'quantified emissions limitation', over the first commitment period, 2008-2012. One way in which nations could achieve this would be by increasing soil carbon storage through different management practices. Most former estimates of regional scale C sequestration potential have made use of either linear regressions based on long-term experimental data, whilst some have used dynamic soil organic matter (SOM) models linked to spatial databases. Few studies have

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12

Dauncey, David Gideon. "Contemporary technology for the management of large scale spatial information." Thesis, University of Newcastle Upon Tyne, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.317858.

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13

Frost, Matthew. "Large-Scale spatial patterns of sandy beach macrofauna community composition." Thesis, University of Plymouth, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.289587.

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14

Yang, Zhao. "Spatial Data Mining Analytical Environment for Large Scale Geospatial Data." ScholarWorks@UNO, 2016. http://scholarworks.uno.edu/td/2284.

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Nowadays, many applications are continuously generating large-scale geospatial data. Vehicle GPS tracking data, aerial surveillance drones, LiDAR (Light Detection and Ranging), world-wide spatial networks, and high resolution optical or Synthetic Aperture Radar imagery data all generate a huge amount of geospatial data. However, as data collection increases our ability to process this large-scale geospatial data in a flexible fashion is still limited. We propose a framework for processing and analyzing large-scale geospatial and environmental data using a “Big Data” infrastructure. Existing Bi

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15

Cao, Zhi. "Large-scale spatially extended atmospheric pressure plasma." Thesis, Loughborough University, 2010. https://dspace.lboro.ac.uk/2134/6688.

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This thesis presents experimental studies of low-temperature atmospheric pressure plasma sources with generic ability to effectively treat large-scale three-dimensional (3D) objects. The reported large-scale plasma sources are developed through parallelisation of single plasma jets. This strategy outshines the other reported strategies for treatment of uneven surfaces by being able to produce spatially extended plasma directly onto the surface of heavily three-dimensional objects. Comparable studies of the design of elemental plasma jets bring out a hybrid electrode configuration, the capillar

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Papin, Morgane. "Apport de la bioacoustique pour le suivi d’une espèce discrète : le Loup gris (Canis lupus)." Electronic Thesis or Diss., Université de Lorraine, 2018. http://www.theses.fr/2018LORR0258.

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Le nombre croissant de travaux réalisés ces dernières années a montré que la bioacoustique est particulièrement intéressante pour le suivi d’espèces discrètes. L’émergence de dispositifs d’enregistrement autonomes, associée à de nouvelles méthodes d’analyse, ont récemment participé à l’accroissement des études dans ce domaine. Au cours des 30 dernières années, le Loup gris (Canis lupus), mammifère carnivore aux mœurs discrètes connu pour ses hurlements de longue portée, a fait l’objet de nombreuses études acoustiques. Ces dernières visaient notamment à améliorer son suivi, qui s’avère complexe

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17

Barlow, Steven Todd. "Spatial Knowledge Acquired Through Navigation in a Large-Scale Virtual Environment." NCSU, 1999. http://www.lib.ncsu.edu/theses/available/etd-19990323-145423.

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<p>The effects of changes in elevation, route distance, route complexity, and non-spatial information on memory for a virtual environment were investigated. Thirty college students learned the layout of a two-story virtual environment through a series of navigation tasks. Participants were required to learn the route from a starting point to each of 14 rooms in the environment. After completing six blocks of learning trials, the participants estimated route distances and directions, completed a priming task in which they identified the floor that each room was on, and navigated novel routes th

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18

Rose, France. "Analysis of phenotypic and spatial cellular heterogeneity from large scale microscopy data." Electronic Thesis or Diss., Paris Sciences et Lettres (ComUE), 2019. http://www.theses.fr/2019PSLEE057.

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La robotique et l’automatisation des microscopes ont ouvert la voie aux cribles cellulaires à haut contenu : des marqueurs fluorescents ciblant l’ADN ou d’autres composants sont utilisés pour imager des centaines de milliers de cellules dans différentes conditions. Il a été montré que les cribles cellulaires sont efficaces pour découvrir des médicaments de nouvelles classes thérapeutiques, cad ceux qui agissent sur une nouvelle cible. Les cribles permettent d’identifier des composés prometteurs et de les caractériser en leur associant des annotations fonctionnelles, comme leur cible moléculair

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19

Zhou, Yang. "Multi-Source Large Scale Bike Demand Prediction." Thesis, University of North Texas, 2020. https://digital.library.unt.edu/ark:/67531/metadc1703413/.

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Current works of bike demand prediction mainly focus on cluster level and perform poorly on predicting demands of a single station. In the first task, we introduce a contextual based bike demand prediction model, which predicts bike demands for per station by combining spatio-temporal network and environment contexts synergistically. Furthermore, since people's movement information is an important factor, which influences the bike demands of each station. To have a better understanding of people's movements, we need to analyze the relationship between different places. In the second task, we p

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20

Westhoff, Andreas. "Spatial Scaling of Large-Scale Circulations and Heat Transport in Turbulent Mixed Convection." Doctoral thesis, Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2012. http://hdl.handle.net/11858/00-1735-0000-000D-FD19-2.

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21

Cannon, Steven Cary. "Large-scale structures and the spatial evolution of wakes behind axisymmetric bluff bodies." Diss., The University of Arizona, 1991. http://hdl.handle.net/10150/185647.

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The wakes behind a variety ofaxisymmenic bodies were investigated with flow visualization and hot-wire measurements. The main objective of this study was to correlate changes in the time-averaged features of the wake with changes in the characteristics of the coherent large-scale structure resulting from changing the solidity of the wake generator or by introducing periodic disturbances to force the wake. The use of an axisymmenic probe holder permitted instantaneous decomposition of the axialvelocity field into temporal and azimuthal Fourier modes. Increases in the body solidity resulted in n

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22

Edwards, Martin. "Large-scale temporal and spatial patterns of marine phytoplankton in the north-east Atlantic." Thesis, University of Plymouth, 2000. http://hdl.handle.net/10026.1/2552.

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Phytoplankton constitute the main algal biomass in pelagic ecosystems and, therefore, play a fundamental role in the functioning of the marine trophic web. Information on long-term trends in marine phytoplankton may help to distinguish between biological responses to natural oscillations in climate and global warming, and to evaluate possible regional effects of eutrophication. The aim of this work was to contribute to the general understanding of how phytoplankton are spatio-temporally structured at the large-scale. To achieve this aim, the Continuous Plankton Recorder (CPR) survey data were

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23

Almufleh, Auroabah S. "Exploring the Impact of Affective Processing on Visual Perception of Large-Scale Spatial Environments." Wright State University / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=wright1598844947508134.

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24

Salawu, Lukman. "Large-scale nutrient pattern in the Gulf of Bothnia with the hydrodynamic of its loads." Thesis, Linköping University, The Tema Institute, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-6797.

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<p>Eutrophication, which is the most important degradation in water bodies, has been traced to the imposed loading of nutrients. Of interest is the fact that the process is often accompanied with undesirable effects, one of which is primarily the increased algae production at the surface and accumulation of biomass at the bottom and the secondary responses, which include a., change in species composition b. change in the biogeochemical cycle c. shift in the seasonal pattern and magnitude variability.</p><p>The biogeochemical cycle in response to hydrodynamic alterations may occur internally; h

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25

Romano, Anthony John. "Spatial distribution of non-native invasive plants following large-scale wind damage at LaRue Pine Hills - Otter Pond Research Natural Area, Union County, Illinois." OpenSIUC, 2012. https://opensiuc.lib.siu.edu/theses/819.

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The objective of this study was to determine if a large-scale wind disturbance facilitated the invasion of forest interiors by non-native invasive plant species. The northern portion of LaRue Pine Hills - Otter Pond Research Natural Area in the Shawnee National Forest, of southern Illinois, was severely damaged by high winds during a derecho event on May 8th 2009. In the summer of 2011, 53 permanent research plots, as well as 20 additional plots located along roads that form the boundaries of the study site, were surveyed for the presence of 20 non-native invasive plant species. Only three of

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26

Busch, Philipp [Verfasser], and Simon D. M. [Akademischer Betreuer] White. "Spatial description of large scale structure and reionisation / Philipp Busch ; Betreuer: Simon D. M. White." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2019. http://d-nb.info/1192215400/34.

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27

Lao, Yong. "Solving large scale location-spatial interaction models for retail analysis : a GIS-supported heuristic approach /." The Ohio State University, 1993. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487848078450627.

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28

MAISANO, DOMENICO AUGUSTO FRANCESCO. "Design and development of a new large-scale metrology system: MScMS (Mobile Spatial coordinate Measuring System)." Doctoral thesis, Politecnico di Torino, 2008. http://hdl.handle.net/11583/2544537.

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This thesis arises from the research activity developed at the Industrial Metrology and Quality Engineering Laboratory of DISPEA – Politecnico di Torino, on a new system prototype for dimensional measurement, called Mobile Spatial coordinate Measuring System (MScMS). MScMS determines dimensional features of large-size objects and has been designed to overcome some limits shown by other widespread measuring sets used nowadays, like Coordinate Measuring Machines (CMMs), theodolites/tacheometers, photogrammetry equipments, GPS based systems, Laser Trackers. Basing on a distributed sensor networks

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29

Meissner, K. (Kristian). "Consequences of predator-prey interactions in boreal streams:scaling up from processes to large-scale patterns." Doctoral thesis, University of Oulu, 2005. http://urn.fi/urn:isbn:9514278682.

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Abstract In this thesis I studied lotic trout predation and its ecological effects, and investigated invertebrate predator-prey interactions under natural and anthropogenically modified flow conditions. Given the growing concern about the reliability of extrapolations from small-scale studies to larger spatio-temporal scales, results of mechanistic small-scale experiments were scaled up by linking them to large-scale field surveys. An intensive survey assessed changes in diel feeding periodicity, prey selection and daily ration of juvenile brown trout (Salmo trutta L.) over the course of the

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30

Henebry, Michael Lee. "Biological and Ecological Trait Associations and Analysis of Spatial and Intraspecific Variation in Fish Traits." Thesis, Virginia Tech, 2011. http://hdl.handle.net/10919/33894.

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Traits provide an informative approach to examine species-environment interactions. Often, species-by-species approaches are inefficient to generate generalizable ecological relationships and do not predict species responses to environmental changes based on specific traits species possess. Multiple lines of inquiry and multi-scale approaches are best for assessing environment-trait responses. This thesis examines important questions not specifically addressed before in traits-based research. Chapter one explores biological and ecological trait associations incorporating ontogenetic diet shift

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31

Smithers, Clay. "Managing Geographic Data as an Asset: A Case Study in Large Scale Data Management." [Tampa, Fla] : University of South Florida, 2008. http://purl.fcla.edu/usf/dc/et/SFE0002761.

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32

Sainte, Fare Garnot Vivien. "Learning spatio-temporal representations of satellite time series for large-scale crop mapping." Thesis, Université Gustave Eiffel, 2022. http://www.theses.fr/2022UEFL2006.

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L'analyse et le suivi de l'activité agricole d'un territoire nécessitent la production de cartes agricoles précises. Ces cartes identifient les bordures de chaque parcelle ainsi que le type de culture. Ces informations sont précieuses pour une variété d'acteurs et ont des applications allant de la prévision de la production alimentaire à l'allocation de subventions ou à la gestion environnementale. Alors que les premières cartes agricoles nécessitaient un travail de terrain fastidieux, l'essor de l'analyse automatisée des données de télédétection a ouvert la voie à des cartographies à grande é

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33

Cebecauer, Matej. "Short-Term Traffic Prediction in Large-Scale Urban Networks." Licentiate thesis, KTH, Transportplanering, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-250650.

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City-wide travel time prediction in real-time is an important enabler for efficient use of the road network. It can be used in traveler information to enable more efficient routing of individual vehicles as well as decision support for traffic management applications such as directed information campaigns or incident management. 3D speed maps have been shown to be a promising methodology for revealing day-to-day regularities of city-level travel times and possibly also for short-term prediction. In this paper, we aim to further evaluate and benchmark the use of 3D speed maps for short-term tra

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34

Pramodkumar, Neeraj. "Large-scale observations of the spatial and temporal dynamics of quiet-time Sub-auroral Polarization Streams using SuperDARN HF Radars." Thesis, Virginia Tech, 2013. http://hdl.handle.net/10919/23845.

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The Sub-Auroral Polarization Stream (SAPS) is a narrow, intense and persistent westward (sunward) ionospheric convection flow channel observed equatorward of the auroral electron precipitation boundary, predominantly on the nightside. Previous studies have identified disturbed-time SAPS to be a geomagnetic activity dependent phenomenon, which exhibits average pre-midnight and post-midnight velocities of 1000 m/s and 400 m/s respectively. Numerous studies have reported even narrower and more intense westward plasma flows called SAIDs to be embedded within SAPS channels, especially during substo

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35

Cockrell, Marcy Lynn. "Spatial Dynamics and Productivity of a Gulf of Mexico Commercial Reef Fish Fishery Following Large Scale Disturbance and Management Change." Scholar Commons, 2018. https://scholarcommons.usf.edu/etd/7611.

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The Gulf of Mexico commercial reef fish fishery has experienced significant management changes and disturbance in recent years, including transitioning two major fisheries from a traditional open access system into a limited entry individual fishing quota (IFQ) system in 2007 and 2010. Also in 2010, the Deepwater Horizon oil spill (DWH) released an estimated 4.9 million barrels of oil into the Gulf (~206 million U.S. gallons), and is still the largest U.S. environmental disaster to date. Emergency fishing closures initiated shortly after the oil spill began were successful in keeping tainted s

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36

Tegling, Emma. "On performance limitations of large-scale networks with distributed feedback control." Licentiate thesis, KTH, Reglerteknik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-186180.

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We address the question of performance of large-scale networks with distributed feedback control. We consider networked dynamical systems with single and double integrator dynamics, subject to distributed disturbances. We focus on two types of problems. First, we consider problems modeled over regular lattice structures. Here, we treat consensus and vehicular formation problems and evaluate performance in terms of measures of “global order”, which capture the notion of network coherence. Second, we consider electric power networks, which we treat as dynamical systems modeled over general graph

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37

Leistedt, B., H. V. Peiris, F. Elsner, et al. "MAPPING AND SIMULATING SYSTEMATICS DUE TO SPATIALLY VARYING OBSERVING CONDITIONS IN DES SCIENCE VERIFICATION DATA." IOP PUBLISHING LTD, 2016. http://hdl.handle.net/10150/622062.

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Spatially varying depth and the characteristics of observing conditions, such as seeing, airmass, or sky background, are major sources of systematic uncertainties in modern galaxy survey analyses, particularly in deep multi-epoch surveys. We present a framework to extract and project these sources of systematics onto the sky, and apply it to the Dark Energy Survey (DES) to map the observing conditions of the Science Verification (SV) data. The resulting distributions and maps of sources of systematics are used in several analyses of DES-SV to perform detailed null tests with the data, and also

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38

Noorduijn, Saskia L. "Temporal and spatial effects of a long term large scale alley farming experiment on water table dynamics : implications for effective agroforestry design." University of Western Australia. School of Environmental Systems Engineering, 2009. http://theses.library.uwa.edu.au/adt-WU2010.0102.

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[Truncated abstract] Removal of native vegetation to facilitate traditional agriculture practices has been shown to reduce ecosystem health, and restricts the native habitat. The subsequent change in the predominant vegetation water use patterns has altered the catchment water balance, and hydrology which results in land degradation through such processes of salinisation and water logging. More recently, moves toward more sustainable farming practices have been taken to help re-establish catchment hydrological equilibrium and improve catchment ecosystem services. Agroforestry is one such vehic

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39

Clerjaud, Lilian. "Méthode d’hétérodynage pour la caractérisation de propriétés thermophysiques par thermographie infrarouge dans une large gamme spatiale et temporelle." Thesis, Bordeaux 1, 2010. http://www.theses.fr/2010BOR14040/document.

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De nos jours, l’apport de la miniaturisation a permis d’innombrables progrès scientifiques et techniques : de la microélectronique à la microfluidique et dernièrement les nanotechnologies. Autant de domaines où les enjeux économiques de suivi de qualité ou d’optimisation de production peuvent nécessiter une étape de caractérisation des propriétés intrinsèques des constituants. Parmi ces propriétés, les données thermophysiques permettent notamment de définir la capacité à stocker ou diffuser la chaleur (conductivité, effusivité ou conductivité thermique par exemple). Une manière d’estimer ces p

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40

Kiyohara, Takayuki. "Generation of heralded multi-photon parallel state for realizing a large-scale photonic quantum circuit." Kyoto University, 2020. http://hdl.handle.net/2433/253284.

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41

Hastie, Adam. "Large scale spatio-temporal variation of carbon fluxes along the land-ocean continuum in three hotspot regions." Doctoral thesis, Universite Libre de Bruxelles, 2019. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/287934.

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Previous research has shown a close relationship between the terrestrial and aquatic carbon (C) cycles, namely that part of the C fixed via terrestrial net primary production (NPP) is exported to inland waters. In turn, it has been demonstrated that once in the freshwater system C can not only be transported laterally as dissolved organic carbon (DOC), particulate organic carbon (POC) and dissolved inorganic carbon (DIC) but is also mineralized and evaded back to the atmosphere as CO2, or buried in sediments. A number of hotspot areas of aquatic CO2 evasion have been identified but there are c

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42

Tchappi, haman Igor. "Dynamic Multilevel and Holonic Model for the Simulation of a Large-Scale Complex System with Spatial Environment : Application to Road Traffic Simulation." Thesis, Bourgogne Franche-Comté, 2020. http://www.theses.fr/2020UBFCA004.

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De nos jours, avec l’émergence d’objets et de voitures connectés, les systèmes de trafic routier deviennent de plus en plus complexes et présentent des comportements hiérarchiques à plusieurs niveaux de détail. L'approche de modélisation multiniveaux est une approche appropriée pour représenter le trafic sous plusieurs perspectives. Les modèles multiniveaux constituent également une approche appropriée pour modéliser des systèmes complexes à grande échelle comme le trafic routier. Cependant, la plupart des modèles multiniveaux de trafic proposés dans la littérature sont statiques car ils utili

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Xiao, Ying. "Mining crop sequence patterns at a large regional scale : A case from mainland France." Thesis, Université de Lorraine, 2015. http://www.theses.fr/2015LORR0122/document.

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L’objectif principal de cette thèse est d’instruire l’organisation des successions culturales, à l’échelle de la France et sur un recul décennal, tant en terme de cinétiques localisées qu’en terme de dynamiques liées à des variables explicatives du milieu physique et socio-technico-économiques. Ce travail de « fouille de données » est appliqué en France métropolitaine, en utilisant les bases de données publiques disponibles. Notre étude couvre la période 1992-2003 où s’implémenta la réforme de 1992 de la Politique Agricole Commune européenne et l’agenda 2000 en France. A partir d’une fouille d

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Westhoff, Andreas [Verfasser], Andreas [Akademischer Betreuer] Dillmann, and Andreas [Akademischer Betreuer] Tilgner. "Spatial Scaling of Large-Scale Circulations and Heat Transport in Turbulent Mixed Convection / Andreas Westhoff. Gutachter: Andreas Dillmann ; Andreas Tilgner. Betreuer: Andreas Dillmann." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2013. http://d-nb.info/1044172894/34.

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Corrales, Duque Carolina. "Population Genetic Structure of Black Grouse (Tetrao tetrix) : From a Large to a Fine Scale Perspective." Doctoral thesis, Uppsala universitet, Institutionen för ekologi och genetik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-150117.

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Black grouse (Tetrao tetrix) is a bird species with a lek mating system found in the Palearctic boreal taiga. It is assumed that it has a continuous distribution along Scandinavia and Siberia, whereas in Central Europe it has declined during the last decades. The primary objective of this thesis was to obtain a deeper understanding of the history, systematic classification and the genetic structure of black grouse on different geographical scales using microsatellites and control region mtDNA sequences (CR). I determined how much the mating system, habitat fragmentation and historical populati

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MARTINO, MATTEO. "A working model on large-scale spatio-temporal organization of brain functioning and its implications for bipolar disorder." Doctoral thesis, Università degli studi di Genova, 2018. http://hdl.handle.net/11567/929968.

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Richer, Gaëlle. "Passage à l'échelle pour la visualisation interactive exploratoire de données : approches par abstraction et par déformation spatiale." Thesis, Bordeaux, 2019. http://www.theses.fr/2019BORD0264/document.

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La visualisation interactive est un outil essentiel pour l'exploration, la compréhension et l'analyse de données. L'exploration interactive efficace de jeux de données grands ou complexes présente cependant deux difficultés fondamentales. La première est visuelle et concerne les limitations de la perception et cognition humaine, ainsi que celles des écrans. La seconde est computationnelle et concerne les limitations de capacité mémoire ou de traitement des machines standards. Dans cette thèse, nous nous intéressons aux techniques de passage à l'échelle relativement à ces deux difficultés, pour

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Singh, Baljeet. "Methods to determine spatial variations of herbicide and estrogen sorption coefficients in undulating to hummocky terrains for pesticide fate modeling at the large scale." Journal of Agricultural and Food Chemistry, 2012. http://hdl.handle.net/1993/31014.

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To reduce the uncertainty associated with pesticide fate model predictions on the large scale, a rapid method is needed that can generate sorption coefficients (Kd values) with sufficient spatial detail. The feasibility of near-infrared spectroscopy (NIRS) to act as such a method was examined, using weak-acidic (2,4-D), weak-basic (atrazine) and zwitterion (glyphosate) herbicides and the natural steroid estrogen (17β-estradiol). A total of 609 horizons in 140 soil profiles were collected in agricultural fields near Brandon, Manitoba and near Saskatoon, Saskatchewan. In both agricultural fields

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Chattopadhyay, Kabitri Verfasser], Hans-Georg [Akademischer Betreuer] Beyer, and Ulrike [Akademischer Betreuer] [Feudel. "Optimization of spatial balancing and storage needs for large-scale power system integration of fluctuating solar energy / Kabitri Chattopadhyay ; Hans-Georg Beyer, Ulrike Feudel." Oldenburg : BIS der Universität Oldenburg, 2017. http://d-nb.info/1137323051/34.

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Muñiz, Carlota Fernández. "Large scale spatio-temporal forcing of pelagic-coastal coupling: disentangling the effects of environmental change on intertidal invertebrate recruitment." Thesis, Rhodes University, 2019. http://hdl.handle.net/10962/75317.

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Marine systems are driven by the relationships among organisms and environmental conditions. Anthropogenic-induced changes during the past decades have started to alter climatic drivers which have the potential to alter the physical, chemical and biological environment. In coastal systems, biogeography is influenced by the temporal variability in the conditions of the water mass. In addition, many marine benthic organisms develop in the water mass and rely on the conditions that link the pelagic and benthic systems for population maintenance. Such pelagic-coastal coupling indicates that change

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