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Dissertations / Theses on the topic 'Spatial temporal simulations'

Author: Grafiati

Published: 4 June 2021

Last updated: 4 February 2022

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1

Wrede, Fredrik. "An Explorative Parameter Sweep: Spatial-temporal Data Mining in Stochastic Reaction-diffusion Simulations." Thesis, Uppsala universitet, Institutionen för biologisk grundutbildning, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-280287.

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Stochastic reaction-diffusion simulations has become an efficient approach for modelling spatial aspects of intracellular biochemical reaction networks. By accounting for intrinsic noise due to low copy number of chemical species, stochastic reaction-diffusion simulations have the ability to more accurately predict and model biological systems. As with many simulations software, exploration of the parameters associated with the model can be needed to yield new knowledge about the underlying system. The exploration can be conducted by executing parameter sweeps for a model. However, with little

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2

Spa, Carvajal Carlos. "Time-domain numerical methods in room acoustics simulations." Doctoral thesis, Universitat Pompeu Fabra, 2009. http://hdl.handle.net/10803/7565.

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L'acústica de sales s'encarrega de l'estudi del comportament de les ones sonores en espais tancats.La informació acústica de qualsevol entorn, coneguda com la resposta impulsional, pot ser expressada en termes del camp acústic com una funció de l'espai i el temps. En general, és impossible obtenir solucions analítiques de funcions resposta en habitacions reals. Per tant, en aquests últims anys, l'ús d'ordinadors per resoldre aquest tipus de problemes ha emergit com una solució adecuada per calcular respostes impulsionals.<br/>En aquesta Tesi hem centrat el nostre anàlisis en els mètodes basat

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Madadgar, Shahrbanou. "Towards Improving Drought Forecasts Across Different Spatial and Temporal Scales." PDXScholar, 2014. https://pdxscholar.library.pdx.edu/open_access_etds/1516.

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Recent water scarcities across the southwestern U.S. with severe effects on the living environment inspire the development of new methodologies to achieve reliable drought forecasting in seasonal scale. Reliable forecast of hydrologic variables, in general, is a preliminary requirement for appropriate planning of water resources and developing effective allocation policies. This study aims at developing new techniques with specific probabilistic features to improve the reliability of hydrologic forecasts, particularly the drought forecasts. The drought status in the future is determined by cer

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4

Cisse, Papa Ousmane. "Étude de modèles spatiaux et spatio-temporels." Thesis, Paris 1, 2018. http://www.theses.fr/2018PA01E060/document.

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Ce travail porte sur les séries spatiales. On étudie les phénomènes dont l’observation est un processus aléatoire indexé par un ensemble spatial. Dans cette thèse on s’intéresse aux données bidimensionnelles régulièrement dispersées dans l’espace, on travaille alors dans un rectangle régulier (sur Z2) . Cette modélisation vise donc à construire des représentations des systèmes suivant leurs dimensions spatiales et à ses applications dans de nombreux domaines tels que la météorologie, l’océanographie, l’agronomie, la géologie, l’épidémiologie, ou encore l’économétrie etc. La modélisation spatia

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5

Zhang, Qian. "Spatial-Temporal Patterns of Urban Growth in Shanghai, China: Monitoring, Analysis, and Simulation." Licentiate thesis, Geoinformatics Division, Department of Urban Planning and Environment, ABE, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-11868.

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<p>Supporting huge population, megacities are definitely the hot spots of production, consumption, and waste generation. Without careful investment and planning, megacities will be overwhelmed by burgeoning negative impacts on the environment, natural resources, and human health, as well as a host of social and economic issues. The unprecedented combination of economic and population growth since the Reform and Open Policy has led China into transition from a largely rural society to a predominantly urban one. Chinese cities, without question, have not escaped the danger of the series of probl

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6

Nagahara, Shizue. "Studies on Functional Magnetic Resonance Imaging with Higher Spatial and Temporal Resolutions." 京都大学 (Kyoto University), 2014. http://hdl.handle.net/2433/188540.

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7

Axelsson, Emil, and Rosin Tomas Forsyth. "Spatial-temporal multi-modal visualization of volumetric simulation and in situ satellite data." Thesis, Linköpings universitet, Medie- och Informationsteknik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-131151.

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This thesis describes the work done by two students from Link¨oping University during a five month stay at Community Coordinated Modelling Center (CCMC) at the National Aeronautics and Space Administration (NASA). The work includes the implementation of algorithms for rendering time-varying volume simulation data from space weather simulations hosted by the CCMC, as well as visualizing photo sequences taken by the Solar Dynamics Observatory (SDO) satellite orbiting Earth. Both these capabilities are added to the OpenSpace software to create a multi-modal visualization where scientists, as well

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8

Taylor, Rick, Neal Redmond, and Jeff Balding. "Temporal, Spectral, and Spatial Treat Simulation Using a Towed Airborne Plume Simulator (TAPS)." International Foundation for Telemetering, 2009. http://hdl.handle.net/10150/606036.

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ITC/USA 2009 Conference Proceedings / The Forty-Fifth Annual International Telemetering Conference and Technical Exhibition / October 26-29, 2009 / Riviera Hotel & Convention Center, Las Vegas, Nevada<br>Efforts are underway to develop Infrared countermeasure (IRCM) systems to defend aircraft against IR guided surface-to-air (SAM) and air-to-air (AAM) missiles. One such system is the Large Aircraft Infrared Counter Measure (LAIRCM) which employs temporal, spatial, and spectral missile warning techniques. There is no current technique however, for installed system flight testing of such counter

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9

Chen, Xiaoding. "Exploring Temporal and Spatial Correlations on Circuit Variables for Enhancing Simulation-based Test Generation." Diss., Virginia Tech, 2006. http://hdl.handle.net/10919/28342.

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The ever-increasing complexity and size of current circuit designs have made testing and verification major bottlenecks in the design flow of VLSI (Very Large Scale Integrated) circuits. Statistics show that more than 70% of the design effort can be spent on functional verification and manufacturing testing. This percentage is expected to increase in the future if no significant strides in these areas are made. In this dissertation, we target three related problems in simulation-based Design Verification and Testing: Sequential ATPG (Automatic Test Pattern Generation), Unbounded Model Checking

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10

Chandan, Shridhar. "Discrete Event Simulation of Mobility and Spatio-Temporal Spectrum Demand." Thesis, Virginia Tech, 2014. http://hdl.handle.net/10919/25331.

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Realistic mobility and cellular traffic modeling is key to various wireless networking applications and have a significant impact on network performance. Planning and design, network resource allocation and performance evaluation in cellular networks require realistic traffic modeling. We propose a Discrete Event Simulation framework, Diamond - (Discrete Event Simulation of Mobility and Spatio-Temporal Spectrum Demand) to model and analyze realistic activity based mobility and spectrum demand patterns. The framework can be used for spatio-temporal estimation of load, in deciding location of a

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11

Maule, Milena Maria. "Spatio-temporal models for plant epidemics : analytical and simulation studies." Thesis, University of Edinburgh, 2000. http://hdl.handle.net/1842/15292.

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We formulate a stochastic spatio-temporal model for the spread of infectious diseases in plants. Studying the behaviour of a model which takes into account stochasticity and spatial extension usually involves intractable mathematics and requires the use of simulation. A challenging objective is to develop analytical methods for general application which provide predictions for the expected behaviour of the model. The individual-based model comprises primary and secondary infection and recovery processes. Using stochastic simulation we study the expected behaviour and variability of the epidemi

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12

Smith, Thomas Jess II. "Simulation of spatial and temporal trends in hydrodynamic conditions of Upper Mississippi River Pool 8." Thesis, University of Iowa, 2011. https://ir.uiowa.edu/etd/1179.

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The Upper Mississippi River is in interest to river managers and biologists' dues to its vast ecosystem and past anthropogenic impacts. In order to help restore the river to its once natural state, river managers and biologists need a strong understanding of the hydrodynamics of the system. A two-dimensional hydrodynamic model was developed in Pool 8 of the Upper Mississippi River and utilized for river management applications. The model was constructed using SMS 10.0 grid generation software and processed with SRH-2D software. SRH-2D used Manning's roughness coefficients to calibrate the mode

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Wiegand, Kerstin. "A model of the spatio-temporal population dynamics of Acacia raddiana /." Leipzig ; Halle : UFZ, 1999. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=008589215&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.

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Michaelis, Tamara. "Simulating Spatial and Temporal Flood Risk Dynamics with a Coupled Agent-Based and Hydraulic Model." Thesis, KTH, Hållbar utveckling, miljövetenskap och teknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-254306.

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Floods are one of the most costly natural hazards worldwide, affecting millions of people every year. Flood risk management is of global concern, and a deeper understanding of dynamic flood risk development is needed. Currently,vulnerability and exposure are often assumed to be constant in quantitative flood risk assessments, which does not reflect patterns observed in real life. In fact, flood protection measures on individual and community level can induce changes in both vulnerability and exposure, as well as alter river and floodplain hydraulics. The human-flood system is complex, incorpor

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Zeghuzi, Anissa. "Analysis of Spatio-Temporal Phenomena in High-Brightness Diode Lasers using Numerical Simulations." Doctoral thesis, Humboldt-Universität zu Berlin, 2020. http://dx.doi.org/10.18452/22016.

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Breitstreifenlaser haben eine breite Emissionsapertur, die es ermöglicht eine hohe Ausgangsleistung zu erreichen. Gleichzeitig führt sie jedoch zu einer Verringerung der lateralen Strahlqualität und zu ihrem nicht-stationären Verhalten. Forschung in diesem Gebiet ist anwendungsgetrieben und somit ist das Hauptziel eine Erhöhung der Brillanz, die sowohl die Ausgangsleistung als auch die laterale Strahlqualität beinhaltet. Um die zugrunde liegenden raumzeitlichen Phänomene zu verstehen und dieses Wissen zu nutzen, um die Kosten der Brillanz-Optimierung zu minimieren, ist ein selbst-konsistentes

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Samant, Gajanan Balkrishna. "Verification of the "Energy Accumulation in Waves Travelling through a Checkerboard Dielectric Material Structure in Space-time" Using Spice Simulations." Digital WPI, 2009. https://digitalcommons.wpi.edu/etd-theses/1210.

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"Recently, there has been some good interest in the field of Dynamic Materials, also referred to as Spatio-Temporal Composites. These materials have been theoretically attributed to show ability to switch their electromagnetic properties in time, as contrast to the spatial variations shown by regular materials of non-dynamic nature, existing naturally. Though there is no exhibition of dynamic material in nature yet, there are suggestions for its synthesis. This paper follows the idea of using standard lossless transmission line model approximating a material substance. Such a material though n

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17

Ye, Jian. "Large-eddy simulation of blade boundary layer spatio-temporal evolution under unsteady disturbances." Diss., Beihang University, 2008. http://hdl.handle.net/10919/71518.

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For high-altitude cruising unmanned aerial vehicles (UAVs), the aero-engine components operate at low Reynolds number condition, which has a significant impact on the running of the engines and the biggest negative effects are on low pressure turbines (LPTs). An in-depth understanding of blade boundary layer spatio-temporal evolution is crucial for the effective management and control of boundary layer transiton or separation, especially the open separation, which is a key technology for the design of low Reynolds number LPT. Focusing on the blade boundary layer spatio-temporal evolution of LP

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18

Youssef, Khaled Saad II. "Numerical Investigation of the Wake of a Rectangular Wing." Diss., Virginia Tech, 1998. http://hdl.handle.net/10919/30347.

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Wakes of lifting bodies contain vortex sheets that roll up into strong streamwise vortices. The long time behavior of such vortices depends on the turbulence in the wake and the stability characteristics of the vortices themselves. In the near wake of a rectangular wing the flow field consists of a spiraling wake that winds around a pair of vortex cores. The study of the turbulence structure and life of wing tip vortices is of great importance to air traffic control in congested airports. In this dissertation a computer code is developed for the temporal as well as spatial simulations of trai

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19

Engel, Patricia Ann. "Spatial and temporal variability of tide-induced salt flux in a partially mixed estuary." Thesis, Massachusetts Institute of Technology, 2009. http://hdl.handle.net/1721.1/54845.

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Thesis (S. M.)--Joint Program in Oceanography/Applied Ocean Science and Engineering (Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences; and the Woods Hole Oceanographic Institution), 2009.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Cataloged from student submitted PDF version of thesis.<br>Includes bibliographical references (p. 41-43).<br>Mechanisms for the tidal component of salt flux in the Hudson River estuary are investigated using a 3D num

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20

Zeghuzi, Anissa [Verfasser]. "Analysis of Spatio-Temporal Phenomena in High-Brightness Diode Lasers using Numerical Simulations / Anissa Zeghuzi." Berlin : Humboldt-Universität zu Berlin, 2020. http://d-nb.info/1220287830/34.

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21

Gu, Yiping. "ENTRAINMENT OF ELECTRICAL ACTIVATION BY SPATIO-TEMPORAL DISTRIBUTED PACING DURING VENTRICULAR FIBRILLATION." UKnowledge, 2003. http://uknowledge.uky.edu/gradschool_theses/193.

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Spatio-temporal variation in action intervals during ventricular fibrillation (VF) suggestthat the excitable gap may also be distributed spatio-temporally. The observation leadus to hypothesize that distributed pacing can be used to modify and entrain electricalactivation during VF. We tested this hypothesis using simulated VF and animal studies. We simulated VF in a 400 by 400 cell matrix. Simulation results showed that activationpattern could be entrained using spatially distributed stimulation. Up to a certain limit,increasing stimulus strength and density led to improved entrainment. Best

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22

Pradhananga, Nipesh. "Construction site safety analysis for human-equipment interaction using spatio-temporal data." Diss., Georgia Institute of Technology, 2014. http://hdl.handle.net/1853/52326.

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The construction industry has consistently suffered the highest number of fatalities among all human involved industries over the years. Safety managers struggle to prevent injuries and fatalities by monitoring at-risk behavior exhibited by workers and equipment operators. Current methods of identifying and reporting potential hazards on site involve periodic manual inspection, which depends upon personal judgment, is prone to human error, and consumes enormous time and resources. This research presents a framework for automatic identification and analysis of potential hazards by analyzing spa

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He, Qian. "Spatio-Temporal Patterns, Correlations, and Disorder in Evolutionary Game Theory." Diss., Virginia Tech, 2011. http://hdl.handle.net/10919/40296.

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Evolutionary game theory originated from the application of mathematical game theory to biological studies. Well-known examples in evolutionary game theory are the prisoner's dilemma, predator-prey models, the rock-paper-scissors game, etc. Recently, such well-known models have attracted increased interest in population dynamics to understand the emergence of biodiversity and species coexistence. Meanwhile, it has been realized that techniques from statistical physics can aid us to gain novel insights into this interdisciplinary field. In our research, we mainly employ individual-based Mo

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Burns, Catherine Marie. "The effects of spatial and temporal proximity of means-end information in ecological display design for an industrial simulation." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/nq41411.pdf.

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Day, Ryan David. "A Framework for Simulating and Analyzing Multi-UAV Persistent Search and Retrieval with Stochastic Target Appearance." BYU ScholarsArchive, 2020. https://scholarsarchive.byu.edu/etd/9222.

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In recent years, advances in small unmanned aerial vehicle (UAV) technology have transformed the use cases of these aircraft from hobby flying to industrial and business applications. These maneuverable, easily deployed tools can be retrofitted with a myriad of sensors and equipment, which make them suitable to perform a variety of specialized tasks. With increasing UAV capabilities, the function of small UAVs can be extended from pure monitoring or surveillance to the dual objective of monitoring an environment for events and addressing the events in some way. This thesis seeks to explore a s

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Klaedtke, Andreas. "Spatio-temporal non-linear dynamics of lasing in micro-cavities full vectorial Maxwell-Bloch FDTD simulations /." [S.l. : s.n.], 2004. http://www.bsz-bw.de/cgi-bin/xvms.cgi?SWB12103645.

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Pokora, C. D. "Spatio-temporal correlations of jets using high-speed particle image velocimetry." Thesis, Loughborough University, 2009. https://dspace.lboro.ac.uk/2134/13185.

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The major source of aircraft noise at take-off is jet noise. If jet noise is not adequately addressed environmental impact concerns will constrain the planned growth of the air transport system. A considerable amount of research worldwide has therefore been aimed at identifying ways to reduce jet noise including development of a predictive tool that can estimate the noise generated by new nozzle designs. Current noise prediction techniques, however, still require the input of empirically calibrated noise source models and their performance is still inadequate. In addition, development of detai

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Umakhanthan, Kanagaratnam Civil &amp Environmental Engineering Faculty of Engineering UNSW. "Estimation of the spatio-temporal heterogeneity of rainfall and its importance towards robust catchment simulation, within a hydroinformatic environment." Awarded by:University of New South Wales. School of Civil and Environmental Engineering, 2002. http://handle.unsw.edu.au/1959.4/18668.

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Rainfall is a natural process, which has a high degree of variability in both space and time. Information on the spatial and temporal variability of rainfall plays an important role in the process of surface runoff generation. Hence it is important for a variety of applications in hydrology and water resources management. The spatial variability of rainfall can be substantial even for very small catchments and an important factor in the reliability of rainfall-runoff simulations. Catchments in urban areas usually are small, and the management problems often require the numerical simulation of

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Crawford, Daniel E. "Simulation of spatial and temporal variability of methylmercury concentration within channel banks and surface waters of the Carson River, Nevada." [Gainesville, Fla.] : University of Florida, 2003. http://purl.fcla.edu/fcla/etd/UFE0000856.

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Ralitera, Tahina. "Simulations multi-agent pour les villes intelligentes : une architecture multi-environnement temporelle, spatiale et organisationnelle. Apports pour l’anticipation." Electronic Thesis or Diss., La Réunion, 2020. http://www.theses.fr/2020LARE0017.

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La simulation multi-agent est une approche prometteuse pour la construction et la planification des villes intelligentes. Dans ce contexte, nous nous basons sur l'exemple du rechargement de véhicules électriques avec des bornes de recharge publiques. Cet exemple illustre une problématique de gestion de ressources partagées et limitées dans le temps et dans l'espace. Rolland May définit trois principales dimensions que doit intégrer le système : l'espace, l'organisation et le temps. Dans la littérature des simulations multi-agent, la dimension spatiale et la dimension sociale font l'objet de no

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Renn-Giles, Fabian. "Investigating spatio-temporal dynamics of non-linear dispersive nano-plasmonics with advanced time-domain simulation methods." Thesis, Imperial College London, 2015. http://hdl.handle.net/10044/1/31384.

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Over the last few decades, nano-fabrication techniques have evolved to such precision that novel optical material responses can be tailor-made to challenging specifications. This development has opened a new avenue to research areas such as nano-plasmonics and metamaterials, which investigate the behaviour of light on the nano-scale and promise a range of exciting new applications. A valuable tool for a better understanding of these systems are numerical simulations. However, the correct description of the phenomena in this new regime is however challenging as it inherently involves theories o

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Mosthaf, Tobias [Verfasser], and András [Akademischer Betreuer] Bárdossy. "New concepts for regionalizing temporal distributions of precipitation and for its application in spatial rainfall simulation / Tobias Mosthaf ; Betreuer: András Bárdossy." Stuttgart : Universitätsbibliothek der Universität Stuttgart, 2017. http://d-nb.info/1155761367/34.

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Cardoso, Vanderlei Andrei. "Opérateurs rétiniens spatio-temporels pour la vision "bas-niveau"." Paris 11, 2002. http://www.theses.fr/2002PA112093.

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Ce travail concerne l'étude des opérateurs rétiniens spatiotemporels. La première partie de la thèse analyse les divers opérateurs spatio-temporels et leur intégration au sein de la rétine. Cette étude a été illustrée par la conception d'une rétine pour la détection des cibles ponctuelles sous-pixeliques. L'algorithme implanté dans cette rétine est constitué d'un filtrage complexe et d'un opérateur d'inhibition latérale avec seuillage. L'intégration de ces opérateurs a été possible par la mise en oeuvre d'un simulateur fonctionnel qui a permis de choisir les opérateurs et d'évaluer l'influence

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Fang, Zhufeng [Verfasser]. "3D hydrological simulation of a forested headwater catchment: Spatio-temporal validation and scale dependent parameterization / Zhufeng Fang." Bonn : Universitäts- und Landesbibliothek Bonn, 2016. http://d-nb.info/1119888891/34.

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Souley, Falama. "Simulation numérique du transport spatial et temporel des concentrations de CO2 et de CH4 atmosphériques et comparaisons avec les observations." Thesis, Université Laval, 2010. http://www.theses.ulaval.ca/2010/27141/27141.pdf.

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Souley, Falama. "Simulation numérique du transport spatial et temporel des concentrations de CO₂ et de CH₄ atmosphériques et comparaisons avec les observations." Doctoral thesis, Université Laval, 2010. http://hdl.handle.net/20.500.11794/22031.

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L'effet de la pollution atmosphérique se fait de plus en plus ressentir de nos jours. Plusieurs études font valoir la nécessité de développer des techniques de mesures et de simulations pour la surveillance continue de son évolution dans l'atmosphère. La modélisation numérique est de plus en plus utilisée pour estimer la dispersion des nuages de polluants dans le temps et dans l'espace. Elle présente a priori des avantages certains par rapport aux techniques physiques que sont les essais in situ ou à échelle réduite. La présente étude consiste en une modélisation inverse des concentrations de

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Tepe, Emre. "Statistical Modeling and Simulation of Land Development Dynamics." The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1462631559.

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Batton-Hubert, Mireille. "Modèles et Heuristiques pour le traitement spatio-temporel de l'information environnementale." Habilitation à diriger des recherches, Université Jean Monnet - Saint-Etienne, 2006. http://tel.archives-ouvertes.fr/tel-00362418.

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Ce mémoire a pour objectif de faire le bilan qualitatif et quantitatif de mes activités de recherche depuis ma nomination à l'Ecole nationale supérieure des mines de Saint-Étienne en 1996. La première partie sera consacrée à la pertinence scientifique du concept de la connaissance d'un phénomène continu simultanément dans l'espace et dans le temps dans un Environnement physique et anthropique. Cette problématique de recherche est centrée sur un domaine d'application, l'optimisation et la simulation d'impacts environnementaux. Volontairement elle ne se scinde pas entre le réalisé et le futur. C

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Wang, Xiayi. "Structured modeling & simulation of articular cartilage lesion formation : development & validation." Diss., University of Iowa, 2015. https://ir.uiowa.edu/etd/1927.

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Traumatic injuries lead to articular cartilage lesion formation and result in the development of osteoarthritis. Recent research suggests that the early stage of mechanical injuries involve cell death (apoptosis and necrosis) and inflammation. In this thesis, we focus on building mathematical models to investigate the biological mechanism involving chondrocyte death and inflammatory responses in the process of cartilage degeneration. Chapter 1 describes the structure of articular cartilage, the process of carti- lage degeneration, and reviews of existing mathematical models. Chapter 2 presents

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Douros, Ioannis. "Towards a 3 dimensional dynamic generic speaker model to study geometry simplifications of the vocal tract using magnetic resonance imaging data." Electronic Thesis or Diss., Université de Lorraine, 2020. http://www.theses.fr/2020LORR0115.

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Dans cette thèse, nous avons utilisé les données de l’IRM du conduit vocal pour étudier la production de la parole. La première partie consiste en l’étude de l’impact que le vélum, l’épiglotte et la position de la tête a sur la phonation de cinq voyelles françaises. Des simulations acoustiques ont été utilisées pour comparer les formants des cas étudiés avec la référence afin de mesurer leur impact. Pour cette partie du travail, nous avons utilisé des IRM statiques en 3D. Comme la parole est généralement une phénomène dynamique une question s’est posée, à savoir s’il serait possible de traiter

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Jammalamadaka, Rajanikanth. "Multilevel Methodology For Simulation Of Spatio-Temporal Systems With Heterogeneous Activity: Application To Spread Of Valley Fever Fungus." Diss., The University of Arizona, 2008. http://hdl.handle.net/10150/193519.

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Spatio-temporal systems with heterogeneity in their structure and behavior have two major problems. The first one is that such systems extend over very large spatial and temporal domains and consume a lot of resources to simulate that they are infeasible to study with current platforms. The second one is that the data available for understanding such systems is limited. This also makes it difficult to get the data for validation of their constituent processes while simultaneously considering their global behavior. For example, the valley fever fungus considered in this dissertation is spread o

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Rodríguez, Jerónimo. "Raffinement de Maillage Spatio-Temporel pour les Équations de l'Élastodynamique." Phd thesis, Université Paris Dauphine - Paris IX, 2004. http://tel.archives-ouvertes.fr/tel-00012034.

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Cette thèse porte sur la simulation de la propagation et diffraction d'ondes dans un milieu élastique anisotrope hétérogène fissuré à l'aide de méthodes numériques explicites. L'objectif est de développer une méthode numérique performante capable de prendre en compte les détails géométriques ou singularités de la solution de manière précise. Les deux premières parties sont consacrées à des méthodes de raffinement de maillage spatio-temporel. Adapter le pas de temps localement au pas d'espace permet en même temps de diminuer la dispersion numérique dans la grille grossière et de gagner en temps

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Hwang, Taehee Band Lawrence E. "Integration of spatio-temporal vegetation dynamics into a distributed ecohydrological model application to optimality theory and real-time watershed simulations /." Chapel Hill, N.C. : University of North Carolina at Chapel Hill, 2010. http://dc.lib.unc.edu/u?/etd,2898.

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Thesis (Ph. D.)--University of North Carolina at Chapel Hill, 2010.<br>Title from electronic title page (viewed Jun. 23, 2010). "... in partial fulfillment of the requirements for the degree of Doctor of Philosophy in the Department of Geography." Discipline: Geography; Department/School: Geography.

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Mayaguezz, Henky. "Exposition humaine, analyse et renforcement des capacités d’évacuation face aux tsunamis à Padang (Indonésie)." Thesis, La Rochelle, 2015. http://www.theses.fr/2015LAROS020/document.

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Cette thèse résume une démarche intégrée visant à évaluer l’exposition humaine et ses variations spatio-temporelles en cas de tsunami dans une zone urbaine littorale en Indonésie, ainsi que la capacité d’évacuation vers des refuges. Ce travail de recherche systématise des méthodes permettant d’estimer la quantité de population présente heure par heure durant n’importe quel jour de la semaine et de l’année, à une échelle très fine, dans une zone urbaine. Il se fonde pour cela sur une hypothèse de rythme de vie contrôlant les activités et donc la distribution de la population. L’heure d’arrivée

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Salah, Ahmad Mohamad. "Stochastic Spatio-Temporal Uncertainty in GIS-Based Water Quality Modeling of the Land Water Interface." BYU ScholarsArchive, 2009. https://scholarsarchive.byu.edu/etd/1837.

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Integrated water resources management has been used for decades in various formats. The limited resources and the ever growing population keep imposing pressure on decision makers to better-, and reliably, manage the available waters. On the other hand, the continuous development in computing and modeling power has helped modelers and decision makers considerably. To use these models, assumptions have to be made to fill in the gaps of missing data and to approximate the current conditions. The type and amount of information available can also be used to help select the best model from the curr

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De, lozzo Matthias. "Modèles de substitution spatio-temporels et multifidélité : Application à l'ingénierie thermique." Thesis, Toulouse, INSA, 2013. http://www.theses.fr/2013ISAT0027/document.

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Cette thèse porte sur la construction de modèles de substitution en régimes transitoire et permanent pour la simulation thermique, en présence de peu d'observations et de plusieurs sorties.Nous proposons dans un premier temps une construction robuste de perceptron multicouche bouclé afin d'approcher une dynamique spatio-temporelle. Ce modèle de substitution s'obtient par une moyennisation de réseaux de neurones issus d'une procédure de validation croisée, dont le partitionnement des observations associé permet d'ajuster les paramètres de chacun de ces modèles sur une base de test sans perte d'

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Zheng, Jiaqi. "Interactive Visual Analytics for Agent-Based simulation : Street-Crossing Behavior at Signalized Pedestrian Crossing." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-264991.

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To design a pedestrian crossing area reasonably can be a demanding task for traffic planners. There are several challenges, including determining the appropriate dimensions, and ensuring that pedestrians are exposed to the least risks. Pedestrian safety is especially obscure to analyze, given that many people in Stockholm cross the street illegally by running against the red light. To cope with these challenges, computational approaches of trajectory data visual analytics can be used to support the analytical reasoning process. However, it remains an unexplored field regarding how to visualize

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Fofonov, Alexey [Verfasser], Lars [Akademischer Betreuer] [Gutachter] Linsen, Peter [Gutachter] Baumann, and Rüdiger [Gutachter] Westermann. "Visual Analysis of Multi-run Spatio-temporal Simulation Data / Alexey Fofonov. Betreuer: Lars Linsen. Gutachter: Lars Linsen ; Peter Baumann ; Rüdiger Westermann." Bremen : IRC-Library, Information Resource Center der Jacobs University Bremen, 2016. http://d-nb.info/1101939915/34.

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Foubert, Luc. "Spatio-temporal characteristics of the visual interhemispheric integration via the corpus callosum : computational modeling & optical imaging approaches." Phd thesis, Université Pierre et Marie Curie - Paris VI, 2007. http://tel.archives-ouvertes.fr/tel-00811495.

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Le cerveau des mammifères est composé de deux hémisphères. Bien qu'anatomiquement séparés, ceux-ci coopèrent l'un avec l'autre par l'intermédiaire de faisceaux de fibres qui constituent les commissures cérébrales. Parmi ces commissures, le corps calleux est la plus importante, tout au moins par le nombre de fibres qui la constitue (200 à 800 millions suivant les espèces). Bien que le rôle de cette commissure soit resté longtemps inconnu, il est maintenant bien établi qu'elle transporte des messages aussi divers que des messages visuels, limbiques, auditifs, somesthésiques et moteurs d'un hémis

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King, Peter R. "What is the nature and function of Spatio-Temporal Imagination? : can it plausibly be explained as an offline simulation of the visual process?" Thesis, University of Nottingham, 2010. http://eprints.nottingham.ac.uk/11346/.

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The main aim of this thesis is to analyse the nature and function of Spatio-Temporal Imagination (STIm) under an imagination-as-simulation framework. STIm is defined as any imaginative act that allows you to consider a location and/or a time other than the one you are currently experiencing. I will focus on the phenomenal visual imagery aspect of this mental phenomenon and hence will not discuss other potential versions of STIm in any detail. Part I will explore the current simulation literature to get an idea of what imagination-as-simulation may mean and to see how it dovetails with other re

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