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Tesis sobre el tema "Dune"

Autor: Grafiati

Publicado: 4 de junio de 2021

Última modificación: 25 de julio de 2025

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1

Durán, Orencio. "Vegetated dunes and barchan dune fields." [S.l. : s.n.], 2006. http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-29639.

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2

Kiki, Sandoungout Serge Nahed. "Caractérisation de la morphologie des dunes dans des écoulements unidirectionnels et alternatifs." Thesis, Brest, 2019. http://www.theses.fr/2019BRES0045/document.

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Cette thèse traite de la forme et de la mobilité des dunes dans l’eau sous un écoulement turbulent. L’état d’équilibre des dunes en régime stationnaire puis le retour à l’équilibre après un changement de sens de l’écoulement sont caractérisés. On examine la variation des paramètres de forme (hauteur, longueur, rapport d’aspect) et de la vitesse de migration des dunes en fonction de la masse du sédiment m0 et de la vitesse de l’écoulement. Cette étude est menée expérimentalement dans un chenal fermé et étroit et les résultats sont comparés aux prédictions d'un modèle de dunes 2D tenant compte d

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3

Diniega, Serina. "Modeling Aeolian Dune and Dune Field Evolution." Diss., The University of Arizona, 2010. http://hdl.handle.net/10150/195665.

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sand hops and bounces -see the dunes grow, run, collide -form the field's pattern.Aeolian sand dune morphologies and sizes are strongly connected to the environmental context and physical processes active since dune formation. As such, the patterns and measurable features found within dunes and dune fields can be interpreted as records of environmental conditions. Using mathematical models of dune and dune field evolution, it should be possible to quantitatively predict dune field dynamics from current conditions or to determine past field conditions based on present-day observations.In this d

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4

Ripley, Bradford Sherman. "The ecophysiology of selected coastal dune pioneer plants of the Eastern Cape." Connect to this title online, 2001. http://eprints.ru.ac.za/18/.

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5

Poizat, Marine. "Observation et modélisation de la répartition géographique des dunes de neige et de la rugosité de surface en Antarctique." Electronic Thesis or Diss., Université Grenoble Alpes, 2024. http://www.theses.fr/2024GRALU026.

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Les dunes sont des modelés éoliens que l'on rencontre fréquemment dans les déserts de sable, les lits de rivière, les régions polaires et même sur d'autres planètes, comme Mars. Formées par l'interaction complexe entre le vent et les sédiments de surface, les dunes présentent une grande variété de formes et de tailles. Si les dunes de sable ont suscité un intérêt scientifique considérable, leurs homologues les dunes de neige, ont reçu moins d'attention, bien que leur présence ait été signalée depuis les années 1900 en Antarctique. Par conséquent, des questions fondamentales sur les processus d

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6

Avis, Anthony Mark. "Coastal dune ecology and management in the Eastern Cape." Thesis, Rhodes University, 1993. http://hdl.handle.net/10962/d1003753.

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The importance of understanding the ecological functioning of coastal dune systems is emphasized as being fundamental to the correct management of the dune landscape. Dune vegetation along the Eastern Cape coastline, from Cape St Francis in the west to Kei Mouth in the east was described in terms of the distribution and phytochorological affinities of the taxa. At a regional scale species distribution was strongly influenced by both the climate, particularly rainfall, and the phytochorological affinities of the taxa. Seven communities were defined using TWINSPAN, and the interrelationships bet

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7

Ogor, Julien. "Design of algorithms for the automatic characterization of marine dune morphology and dynamics." Thesis, Brest, École nationale supérieure de techniques avancées Bretagne, 2018. http://www.theses.fr/2018ENTA0005/document.

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Les dunes marines sont de grandes structures sédimentaires qui, ensemble, couvrent de larges zones appelées champs de dunes. Des dunes ont été découvertes dans tous les océans, de la côte jusqu'aux talus continentaux. Leur forme et mobilité sont des témoins du lien étroit qui existe entre le transport sédimentaire, l'hydrodynamique (courants marins) et la topographie du fond. L'étude des dunes est intéressante scientifiquement parlant, mais elle est également motivée par des enjeux économiques et environnementaux. Les dunes peuvent être étudiées de deux manières : La modélisation et l'analyse

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8

Barwell, Lauriston. "Integrity assessment procedure for buffer dune systems on the Cape South Coast, South Africa." Thesis, Stellenbosch : University of Stellenbosch, 2011. http://hdl.handle.net/10019.1/6524.

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Thesis (MScEng (Civil Engineering))--University of Stellenbosch, 2011.<br>ENGLISH ABSTRACT: The hypothesis postulated in this research, namely that the effectiveness of natural and constructed buffer dune systems can be assessed by a set of indicators that defines the integrity of the dune system and triggers informed management decisions, was evaluated and proved to be essentially true. Two key objectives, namely (1) the identification of key indicators that define the buffer dune integrity; and (2) the development of a scientifically defendable and practical checklist-based method of g

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9

Cocks, David. "Mathematical modelling of dune formation." Thesis, University of Oxford, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.442818.

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This study is concerned with the mathematical modelling of the formation and subsequent evolution of sand dunes, both beneath rivers (fluvial) and in deserts (Aeolian). Dunes are observed in the environment in many different shapes and sizes; we begin by discussing qualitatively how and why the different forms exist. The most important aspect of a successful model is the relationship between the bed shape and the shear stress that the flow exerts on the bed. We first discuss a simple model for this stress applied to fluvial dunes, which is able to predict dune-like structures, but does not pre

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10

Momiji, Hiroshi. "Mathematical modelling of the dynamics and morphology of aeolian dunes and dune fields." Thesis, University College London (University of London), 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.249363.

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11

Purvis, Kelly Grant. "Assessment of beach access paths on dune vegetation and implications for dune path planning and management." Thesis, College of Charleston, 2013. http://pqdtopen.proquest.com/#viewpdf?dispub=1545049.

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<p> The impact of beach access paths on dune vegetation was investigated on the Isle of Palms, SC. Understanding the impacts of the most direct form of disturbance in this system (beach access paths) is of increasing importance from ecological and economic perspectives. Vegetation characteristics were measured along transects in foredune, mid dune and back dune communities at set distances from beach access paths. Survey was conducted to allow comparisons between path types and materials. Results indicate that beach access paths have a significant impact on beach dune vegetation. Sand paths ca

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12

Baddock, Matthew. "Airflow dynamics in transverse dune interdunes." Thesis, University of Northampton, 2005. http://nectar.northampton.ac.uk/2994/.

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Aeolian dune interdunes have been relatively ignored when compared with the research attention on the morphodynamics of the dune bodies themselves. This neglect is in spite of the possible significance of interdune dynamics for the geomorphology of the sand dune system as a whole, especially with regard to dune spacing. This project involved the collection of geomorphologically relevant airflow data for four relatively simple transverse dune interdunes. The study locations were chosen in order to sample interdunes with different size and surface type characteristics, the dynamics of which were

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13

Robertson-Rintoul, M. J. "The morphology and dynamics of parabolic dunes within the context of the coastal dune systems of mainland Scotland." Thesis, University of Oxford, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.371712.

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14

Burns, Michael Edmund Reid. "A synecological study of the East London coast dune forests." Thesis, Rhodes University, 1987. http://hdl.handle.net/10962/d1006134.

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Quantitative community descriptions, based on point quarter sample data, are made for a number of dune forest units along the East London coast. These are supported by multivariate classifications and ordinations which illustrate the inter community variation between the sampled seaward, landward and dune valley sites. Climax valley forest is floristically most characteristic and can be clearly distinguished from the seaward and landward thicket communities which tend to show a degree of similarity. Within-forest community differences are shown to be more significant than variation along the c

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15

Knevel, Irma Cornelia. "The life history of selected coastal foredune species of South Africa." Thesis, Rhodes University, 2002. http://hdl.handle.net/10962/d1003776.

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South African dune fields are severely threatened by human expansion and in the long run the stabilisation of many dunes will be necessary. The alien grass Ammophila arenaria is the most important drift sand stabiliser at present in South Africa. Although not invasive, the current impact of A. arenaria on the dune systems of South Africa is considerable, and thus the stabilising benefit of the grass seemed to may be outweighed by its negative consequences. It is therefore preferable to use indigenous sand stabilising species. In order to define guidelines for the application of indigenous plan

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16

Domínguez, Acosta Miguel. "The Pluvial Lake Palomas-Samalayuca Dune systems." To access this resource online via ProQuest Dissertations and Theses @ UTEP, 2009. http://0-proquest.umi.com.lib.utep.edu/login?COPT=REJTPTU0YmImSU5UPTAmVkVSPTI=&clientId=2515.

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17

Ripley, B. S. "The ecophysiology of selected coastal dune pioneer plants of the Eastern Cape." Thesis, Rhodes University, 2002. http://hdl.handle.net/10962/d1003791.

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Understanding the mechanisms and adaptations that allow only certain species to thrive in the potentially stressful foredune environment requires a knowledge of the basic ecophysiology of foredune species. Ecophysiological measurements were conducted on the foredune pioneer species Arctotheca populifolia (Berg.) Norl., Ipomoea pes-caprae(L.) R. Br. and Scaevola plumieri (L.) Vahl. and showed significant differences among species with respect to the physiology associated with biomass production, water and nutrient relations. Differences related to CO₂ assimilation included differences in photos

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18

Caldeira, Ana Eugénia Calha Grave. "Viver da Ria : a requalificação da Ilha da Culatra." Master's thesis, Universidade de Lisboa. Faculdade de Arquitetura, 2015. http://hdl.handle.net/10400.5/8929.

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19

Garcia-Lozano, Carla. "Els sistemes dunars de la costa catalana. Evolució històrica, estat actual i potencial de restauració." Doctoral thesis, Universitat de Girona, 2019. http://hdl.handle.net/10803/668331.

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Human developed coasts in Catalonia show a high-degraded dune landscape. Along the last decades, dunes have disappeared from 60% of the beaches studied, whereas 30% of dunes have been reduced in extension, and only 10% have suffered fewer changes.Currently, more than 800 beaches compose the Catalan shoreline of which only 127 host some type of dune morphology. Regardless of their volume and extension, the Catalan coastal dunes reflect, in general, an advanced status of degradation related to the lack of management focused on maintaining and restoring dune morphologies. The application of the i

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20

O'Malley, Paul W. "Understanding Formation and Evolution of Dune Fields by Spatial Mapping and Analysis: Upper Muskegon River Valley, Michigan." Bowling Green State University / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1557841176226706.

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21

Bell, James Clayton. "An aeolian transport model for the selection of dune restoration alternatives." Texas A&M University, 2005. http://hdl.handle.net/1969.1/4788.

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The landfall of hurricane Claudette in 2003 damaged and eroded most Texas coastal counties. The residents of Pointe San Luis on the west end of Galveston Island, Texas lost their protective dune front and experienced significant shoreline erosion. Following the storm, the Pointe San Luis Property Owner's Association contacted Texas A&M University to design a dune restoration strategy. The greatest natural contributor to dune reconstruction is the available sand delivered by aeolian transport. During the course of the study it became apparent that no model or software existed capable of demonst

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22

Mohd-Said, Mohd Nizam. "Effects of anthropogenic nitrogen inputs on dune grassland." Thesis, Bangor University, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.285519.

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23

Jackson, Derek William Thomas. "Aeolian entrainment of surface beach and dune settlements." Thesis, University of Ulster, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.242047.

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24

Graham, Stuart Andrew. "Conservation of U.K. dune system native Lacertidae species." Thesis, Bangor University, 2018. https://research.bangor.ac.uk/portal/en/theses/conservation-of-uk-dune-system-native-lacertidae-species(b591154e-a7a1-48a3-975f-b2efa913a2c9).html.

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After years of decline, resulting in the extinction of the sand lizard Lacerta agilis in Wales, the species has now been returned to several dune system sites which also contain the viviparous lizard Zootoca vivipara. As dune system habitats are becoming an increasingly important habitat type in the UK for L. agilis, providing a relatively safe haven for these and Z. vivipara populations from anthropogenic change, it is time to ensure the long-term survival of these populations. In this study, environmentally advantageous conditions for detection of both species were established for three dune

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25

Paarlberg, Andries Jan. "Modelling dune evolution and dynamic roughness in rivers." Enschede : University of Twente [Host], 2008. http://doc.utwente.nl/59778.

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26

Livingstone, I. "The dynamics of sand transport on a Namib linear dune." Thesis, University of Oxford, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.375978.

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27

Sturgess, Peter William. "Post-felling vegetation changes on three afforested sand-dune systems." Thesis, University of Liverpool, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.363340.

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28

Wu, Jianzhao. "Numerical simulation of wind erosion : application to dune migration." Thesis, Lyon, 2019. http://www.theses.fr/2019LYSEC016/document.

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L’érosion éolienne est un phénomène complexe avec des interactions entre la couche limite atmosphérique, le transport des particules et la déformation des dunes. Dans cette thèse des simulations numériques de transport de particules solides sur des dunes fixes ou déformables sont effectuées. L’écoulement turbulent est calculé par des simulations des grandes échelles (LES) couplée avec une méthode de frontières immergées. Les particules solides sont tractées par une approche Lagrangienne. L’entraînement des particules, leur interaction avec la surface et leur dépôt sont pris en compte par des m

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29

Kirschner, Audrey. "Planting Density Effects on the Growth of Dune Grasses." VCU Scholars Compass, 2019. https://scholarscompass.vcu.edu/etd/6068.

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Coastal dune vegetation plays a key role in dune formation and stabilization through sediment trapping and erosion control. To restore degraded dunes, revegetation of dune building species is critical. Planting density has been found to effect growth of marsh species, with closer plantings alleviating stress through facilitation. As coastal dunes are high stress environments, it is expected that dune species may also exhibit facilitative interactions based on the Stress Gradient Hypothesis. Therefore, planting grasses in clumped configurations may lead to more successful dune revegetation. The

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30

Buck, Mitchell Arthur. "Experiments and numerical model for berm and dune erosion." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 190 p, 2008. http://proquest.umi.com/pqdweb?did=1456291111&sid=6&Fmt=2&clientId=8331&RQT=309&VName=PQD.

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31

Costas, Vázquez Iria [Verfasser], and Christian [Akademischer Betreuer] Betzler. "Climate Archive Dune / Iria Costas Vázquez. Betreuer: Christian Betzler." Hamburg : Staats- und Universitätsbibliothek Hamburg, 2014. http://d-nb.info/1050239075/34.

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32

Monge, Jackie Ann. "CONVERGENCE OF DUNE TOPOGRAPHY AMONG MULTIPLE BARRIER ISLAND MORPHOLOGIES." UKnowledge, 2014. http://uknowledge.uky.edu/geography_etds/19.

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Wave-dominated and mixed tidal and wave energy barrier islands are assumed to have characteristic dune topographies that link to their macroscale form. However, there has been no systematic attempt to describe the linkage between barrier island macroscale form and dune topography. The goal of this thesis was to investigate how dune topographies correspond to a number of barrier island morphologies found along the southeastern U.S. Atlantic coast. Macroscale process-form variables were used to classify 77 islands into seven morphologic clusters. Islands from each cluster were selected and sites

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33

Greipsson, Sigurdur. "Population studies on the dune-building grass Leymus arenarius." Thesis, University of East Anglia, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.303369.

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34

Smyth, Thomas Andrew George. "Airflow and sediment transport dynamics in coastal dune blowouts." Thesis, Ulster University, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.646398.

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Blowouts are erosional depressions that occur on pre-existing vegetated sand deposits. Their morphodynamic behaviour can reflect changes in anthropogenic activity, climatic conditions and animal behaviour; however patterns of deflation are poorly understood as near-surface airflow is complex. Previous research has indicated that flow is topographically manipulated as it moves through the landform, causing steering, reversal and jetting of the airflow. However, empirical data on these effects have been limited due to inadequacies in anemometer and sediment trap deployments. As a consequence kno

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35

Costas, Vázquez Iria Verfasser], and Christian [Akademischer Betreuer] [Betzler. "Climate Archive Dune / Iria Costas Vázquez. Betreuer: Christian Betzler." Hamburg : Staats- und Universitätsbibliothek Hamburg, 2014. http://nbn-resolving.de/urn:nbn:de:gbv:18-67065.

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36

Carrasco, Martínez Juan Carlos. "Probing CPT breaking induced by quantum decoherence at DUNE." Master's thesis, Pontificia Universidad Católica del Perú, 2019. http://hdl.handle.net/20.500.12404/14341.

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We consider a beyond standard physics scenario, where neutrino is considered as an open quantum system. In order to have that consideration we use the Lindblad master equation, which introduce the quantum phenomena called decoherence. In that context we explore one of the most exotic of its consecuences, the CPT violation. We work in three avor generation case where making the SU(3) decomposition of the operators we encounter that there exist fteen parameters in the decoherence matrix that explicitly violate CPT. Regarding four of those parameteres we choose one case of decoherence

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37

Savage, Christopher Jon. "Implications of Dune Pattern Analysis for Titan's Surface History." BYU ScholarsArchive, 2011. https://scholarsarchive.byu.edu/etd/3077.

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Analyzing dune parameters such as dune width and spacing can be useful in determining the reaction of dunes to changes in atmospheric and sedimentary conditions currently and in the recent geologic past. Dune parameters, dune width and spacing, were measured for linear dunes in regions across Saturn's moon Titan from images T21, 23, 28, 44 and 48 collected by Synthetic Aperture RADAR aboard the Cassini spacecraft in order to reconstruct the surface history of Titan. Dunes in the five study swaths are all linear in form, but lack superimposed or flanking dunes. They have a mean width of 1.3 km

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38

Whitaker, Lindsey M., Ph D. Matthew Ritter, Ph D. Scott J. Steinmaus, and Jonathan Hall. "The Preservation and Protection of Native Biodiversity in the Guadalupe Nipomo Dunes Complex." DigitalCommons@CalPoly, 2016. https://digitalcommons.calpoly.edu/theses/1715.

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The Guadalupe Nipomo Dunes Complex (GNDC) is located within the California Floristic Province, a biodiversity hotspot characterized by high rates of endemism and exceptional loss of habitat. In 1980, the US Fish and Wildlife Service described the GNDC as, “the most unique and fragile ecosystem in the State of California,” and ranked it first on a list of 49 habitat areas needing state protection. It is the largest coastal dune area in California and it is one of the last remaining, relatively intact ecosystems of its type and size in the western United States. The growing recognition of specie

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39

Al-Hinai, Khattab Ghalib. "Quaternary aeolian sand mapping in Saudi Arabia using remotely sensed imagery." Thesis, Imperial College London, 1988. http://hdl.handle.net/10044/1/7772.

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40

VICENZI, MATTEO. "A GRAIN of SAND for DUNE: Development of simulations and reconstruction algorithms for the liquid Argon target of the SAND detector in DUNE." Doctoral thesis, Università degli studi di Genova, 2023. https://hdl.handle.net/11567/1105305.

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Neutrinos are the most abundant of known matter particles in the Universe and the study of their properties has produced many surprises, including the evidence for physics beyond the Standard Model of particle physics. In particular, the phenomenon of neutrino oscillations, transitions in flight between the different types of neutrinos, provides compelling evidence that neutrinos have small, but non-zero, masses and that their mass states are mixtures of their flavor states. The field of neutrino physics has advanced rapidly and there is currently a good understanding of most experimental resu

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41

Cotte, Philippe. "Le projet WA105 : un prototype de chambre à projection temporelle à argon liquide diphasique utilisant des détecteurs LEMs." Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLS246/document.

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Le projet WA105/ProtoDUνE-DP est une expérience de prototypage qui a pour objectif de tester la technologie de Chambre à Projection Temporelle à Argon Liquide Diphasique (DLArTPC) à grande échelle dans le but de l'utiliser dans la future expérience de physique des neutrinos DUνE. Prévue fin 2026 aux USA, DUνE vise à déterminer l'ordre des masses des neutrinos ainsi que la violation de CP dans le secteur leptonique. Le travail de cette thèse s'oriente dans un premier temps autour des tests et simulations effectués sur les éléments de détection et d'amplification des détecteurs de WA105. Dans un

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42

Junior, Daniel Rodrigues do Nascimento. "\"Morfologia e sedimentologia ao longo do sistema praia-duna frontal de Ilha Comprida, SP\"." Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/44/44140/tde-15032007-161706/.

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A Ilha Comprida, localizada no litoral sul do Estado de São Paulo, é uma ilha-barreira arenosa holocênica de 63 km de comprimento por até 5 km de largura, limitada a SW pela desembocadura de Cananéia, e a NE, pela desembocadura de Icapara. Seu sistema praia - duna frontal teve grande variação no tempo, como evidenciado por sucessivos truncamentos de cordões litorâneos. Em escala de tempo mais restrita, dentro dos últimos 200 anos, coberta pelo registro histórico e cartográfico e por fotografias aéreas, as mudanças morfológicas mais significativas concentram-se no extremo nordeste da ilha. Incl

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43

Todd, Colleen Barbara. "A comparison of the reproductive strategies of key species of a prograding dune system in the Mlalazi Nature Reserve, Natal." Thesis, Rhodes University, 1995. http://hdl.handle.net/10962/d1003800.

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The succession on the dunes of the Mlalazi Nature Reserve represents a classical example of primary succession. The reproductive strategies of eight key species were compared to determine some of the mechanisms affecting the community dynamics, at the population level, in the early stages of succession. There is a temporal separation in the flowering and fruiting phenologies. Passerina rigida, Stipagrostis zeyheri and Imperata cylindrica produced small seeds with a low fruit/seed mass ratio within a short cycle. The seeds are suitable for wind-dispersal. The animal-dispersed species; Eugenia c

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44

Boehme, Nicole F. "A Comparison of Antlions, Bees, Darkling Beetles and Velvet Ants Across Sand Dune and Non-Sand Dune Habitats at Ash Meadows National Wildlife Refuge." DigitalCommons@USU, 2014. https://digitalcommons.usu.edu/etd/2078.

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Insects fulfill important roles within all ecosystems, including deserts, and interact directly and indirectly with the endemic and endangered species at the Ash Meadows National Wildlife Refuge (AMNWR). Here I investigate the variability of species richness, diversity, abundance and community composition of four insect groups between stabilized sand dune habitats, unstabilized sand dune habitats and non-sand dune habitats. The insects examined in this thesis include antlions (Myrmeleontidae), bees (Apiformes), darkling beetles (Tenebrionidae) and velvet ants (Mutillidae). As the impact and in

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45

Pries, Alexander James. "Hurricane impacts on coastal dunes and spatial distribution of Santa Rosa beach mice (Peromyscus polionotus leucocephalus) in dune habitats." [Gainesville, Fla.] : University of Florida, 2006. http://purl.fcla.edu/fcla/etd/UFE0013415.

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46

Isvén, Ulrika. "Sanddynsmorfologi och kusterosion i Laholmsbukten, Hallands län." Thesis, Stockholms universitet, Institutionen för naturgeografi, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-123318.

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The following study investigates how a sand dune system in the central part of Laholm Bay (Laholmsbukten) in Halland County, Sweden, has evolved over the time period 1947 to 2014. Effort was made to contribute to improved knowledge of how geomorphological variations and anthropogenic activity in the area have been influenced by each other over time. The study is aiming to provide an improved science basis for further development of coastal management in the area. Initial focus points were to investigate the correlation over time between changes in dune system morphology, vegetation distributio

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Peter, Craig Ingram. "Water requirements and distribution of Ammophila arenaria and Scaevola plumieri on South African coastal dunes." Thesis, Rhodes University, 2000. http://eprints.ru.ac.za/38/.

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Fauver, Laura A. "Toward predicting barrier island vulnerability simple models for dune erosion /." [Tampa, Fla.] : University of South Florida, 2005. http://purl.fcla.edu/fcla/etd/SFE0001055.

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Irizarry, Adella. "The amtal rule| Testing to define in Frank Herbert's Dune." Thesis, Florida Atlantic University, 2013. http://pqdtopen.proquest.com/#viewpdf?dispub=1524501.

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<p> In this project, I focus on the function of the “amtal,” or test of definition or destruction, in Frank Herbert's <i>Dune</i>. It is my argument that these tests “to destruction” determine not only the limits or defects of the person being tested, but also—and more crucially—the very limits and defects of the definition of humanity in three specific cultural spheres within the novel: the Bene Gesserit, the Fremen, and the Faufreluches. The definitions of “amtal” as well as “humanity,” like all definitions, are somewhat fluid, chan

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Plassmann, Katharina. "Effects of grazing and nitrogen deposition on sand dune systems." Thesis, Bangor University, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.433686.

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