Dissertationen zum Thema „551.909 515“
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Cotton, Jacqueline Ann. „Geomorphology and palaeoecology of late Holocene floodplain environments in the river Irthing, Cumbria, UK“. Thesis, University of Newcastle Upon Tyne, 2001. http://hdl.handle.net/10443/949.
Der volle Inhalt der QuelleTian, Na. „Novel optimisation methods for numerical inverse problems“. Thesis, University of Greenwich, 2011. http://gala.gre.ac.uk/9099/.
Der volle Inhalt der QuellePujol, Tost Laia. „Arqueologia, museus i ordinadors. Aproximació semiòtica a l'ús de la Realitat Virtual per la difusió de l'Arqueologia als museus“. Doctoral thesis, Universitat Autònoma de Barcelona, 2006. http://hdl.handle.net/10803/5515.
Der volle Inhalt der QuelleLa tesi s'estructura en tres volums. En el primer es presenta un panorama general del projecte (objectius, metodologia, contribució a l'estat de la qüestió, perspectives de futur) i també les concepcions bàsiques sobre l'Arqueologia (situació epistemològica i funció social), els museus (paper dels objectes, funció social dels museus, funció comunicativa i educativa de l'exposició, primeres paraules sobre l'ús de les TIC als museus) i la Realitat Virtual (a partir de sis vectors d'aproximació a la complexitat del concepte) que han guiat el procés d'investigació. En el segon volum es tracta pròpiament la qüestió de partida i s'intenta esbrinar (a través de la cerca bibliogràfica sobre cada element, la seva aplicació a la RV i la verificació a partir d'avaluacions empíriques publicades) si la Realitat Virtual és útil com a eina de comunicació des de totes les perspectives implicades (percepció, cognició, semiòtica de les imatges/del llenguatge, epistemologia arqueològica, museologia, museografia i aprenentatge), reunides en tres nivells analítics: sintaxi, semàntica i pragmàtica. El tercer volum conté un resum de tota la tesi i les conclusions del procés de recerca, que corresponen als fonaments teòrics sobre l'ús de la RV als museus arqueològics des del punt de vista de la recerca i de la museologia.
El present treball no és únic, sinó que ja hi ha hagut altres projectes orientats a la comprensió de la utilitat comunicativa de la RV ja des del moment que les recerques van sortir de i l'àmbit militar i per això es pot situar com a continuador d'aquestes. Però ara aporta algunes novetats, entre les quals cal destacar la construcció d'un marc teòric i metodològic, la Semiòtica, que comporta els següents avantatges: permet aplicar i adaptar la metodologia analítica desenvolupada en altres àmbits; integrar en un discurs coherent les recerques sobre els avantatges i inconvenients de la RV des dels diferents àmbits implicats; obtenir una eina avaluativa per contrastar en el futur aquesta fonamentació teòrica; i, finalment, com a conseqüència pràctica del marc teòric, proporcionar una base racional i explícita per a l'ús científic i divulgatiu de la RV en Arqueologia.
Given the spread of the use of virtual reconstructions in archaeological museums, apparently without a true theoretical consideration (museological and epistemological) to support them, the aim of this thesis is to find out whether and how Virtual Reality is useful for the presentation of Archaeology in museums and at the same time to propose a theoretical bases for this use, through the establishment of a semiotica theoretical and methodological framework.
The thesis is structured in three volumes. The first one presents a general overview of the project (goals, methodology, contribution to the state of the art, future perspectives) and also the basic concepts about Archaeology (epistemological situation and social function), museums (role of objects, museums' social function, communicational and educational role of the exhibition, first words about the use of ICT in museums) and Virtual Reality (using six vectors of approximation to the complexity of the concept) that guided the research process. The second volume is devoted to the starting question and tries to find out (through a bibliographical search about each element, its application to VR and its verification through published empirical evaluations) if VR is useful as a communication tool from all the perspectives involved (perception, cognition, semiotics of images/language, archaeological epistemology, museology, museography and learning), distributed in three analytical levels: syntax, semantics and pragmatics. The third volume contains a summary of the thesis and the conclusions of the research project, which correspond to the theoretical foundations of the use of VR in archaeological museums from the research and the museological perspective.
The present research project is not unique and can be considered a continuation of early research into the usefulness of VR for learning performed outside the military field. However, it does introduce new elements, amongst which we should highlight the construction of a theoretical and methodological framework, semiotics, which encompasses the following advantages: to apply and adapt the powerful analytical methodology coming from semiotics as well as other fields; to integrate in a coherent discourse research into the advantages and disadvantages of VR from the different fields involved; to obtain an evaluative tool for future verification of these theoretical foundations; and finally, as the practical consequence of the theoretical framework, it provides a rational and explicit basis for the scientific and disseminative use of VR in Archaeology.
Louca, K., A. Stadler, A. Raabe und A. Ziemann. „Comparison of wind measurements between a Mini-SODAR PA0, a METEK-SODAR and a 99 m tower“. Universität Leipzig, 2010. https://ul.qucosa.de/id/qucosa%3A16372.
Der volle Inhalt der QuelleRenton, Dave. „The attempted revival of British fascism : fascism and anti-fascism, 1945-51“. Thesis, University of Sheffield, 1999. http://etheses.whiterose.ac.uk/14777/.
Der volle Inhalt der QuelleHallett, Mark. „The spectacle of difference : graphic satire and urban culture in London, 1700-51“. Thesis, Courtauld Institute of Art (University of London), 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.307176.
Der volle Inhalt der QuelleBubis, Mordecai Donald. „The Soviet Union and Stalinism in the ideological debates of American Trotskyism (1937-51)“. Thesis, London School of Economics and Political Science (University of London), 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.364755.
Der volle Inhalt der QuelleThompson, Christopher David. „Politics and state-building in Vormärz Hanover : the role of King Ernst August, 1837-51“. Thesis, University of Cambridge, 2007. https://www.repository.cam.ac.uk/handle/1810/252048.
Der volle Inhalt der QuelleJones, Jean Elizabeth. „The anti-colonial politics and policies of the Communist Party of Great Britain, 1920-51“. Thesis, University of Wolverhampton, 1997. http://hdl.handle.net/2436/96615.
Der volle Inhalt der QuelleHaggith, Toby. „Castles in the air : British film and the reconstruction of the built environment, 1939-51“. Thesis, University of Warwick, 1998. http://wrap.warwick.ac.uk/3963/.
Der volle Inhalt der QuellePetro, Balaguer Ana Belén. „Analytical methods fort he study of color in digital images“. Doctoral thesis, Universitat de les Illes Balears, 2006. http://hdl.handle.net/10803/9409.
Der volle Inhalt der QuelleOjeserkis, Raymond. „The United States and the beginning of the Cold War arms race : the Truman administration and the arms build-up of 1950-51“. Thesis, London School of Economics and Political Science (University of London), 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.298372.
Der volle Inhalt der QuelleRuta, Giancarlo. „Understanding hunter-gatherers behaviour through the macro-fractures analysis of lithic backed points“. Doctoral thesis, Universitat Rovira i Virgili, 2021. http://hdl.handle.net/10803/671946.
Der volle Inhalt der QuelleLa aplicatión de una metodología sólida es premisa fundamental para obtener información fiable en cada investigación científica, y particularmente en arqueología prehistórica, donde fácilmente se cometen errores a nivel interpretativo. El objetivo principal de este trabajo es comprender la labor de los cazadores-recolectores tras el Último Máximo Glacial y durante el Tardìoglacial en un área determinada a través del análisis funcional de los materiales líticos arqueológicos con el fin de aportar una primera mirada al papel que jugaron los yacimientos en un período de rápidos cambios climáticos y medioambientales. Los yacimientos de cultura Epigravettiana de Grotta di Pozzo en el centro de Italia y Riparo Villabruna al norte han investigado en profundidad desde la perspectiva lítica para identificar posibles puntas de proyectil utilizadas durante actividades de caza. Esto ofrece una detallada información sobre tecnologías de empuñadura y técnicas de caza, brindando un amplio marco de conocimientos y habilidades prácticas de la población. El proyecto de investigación introduce aspectos únicos que nunca antes han sido investigados para los yacimientos mencionados. La adopción sistemática de la arqueología experimental es innovadora, y se han probado aspectos específicos y en su mayoría desconocidos sobre el uso de herramientas líticas. Los datos provenientes de la amplia literatura y los resultados inesperados se cruzan para comprender las estrategias de caza, el comportamiento, los desplazamientos, los asentamientos estacionales y la posible interrelación entre grupos humanos en esta gran área del centro-norte de Italia a finales del Pleistoceno.
The application of a robust methodology is a fundamental precondition to get reliable information in every scientific investigation, in particular in prehistoric archaeology where it is easy to make mistakes on the interpretation level. The main goal of this work is to understand the role of the hunter-gatherers after the Last Glacial Maximum and during the Late Glacial in a given area, through the functional analysis of the archaeological lithic materials, in order to give a glimpse of the function of the sites in a period of rapid climate and environmental changes. The Epigravettian sites of Grotta di Pozzo in the Central Italy and Riparo Villabruna in the North Italy have been investigated on the lithic point of view, as to individuate possible projectile points used during hunting activity. This contribution offers detailed information about hafting technologies and hunting techniques, giving a wide framework of knowledge and practical skills of the inhabitants. The research project introduces unique aspects that have never been investigated before for the considered sites. The systematic adoption of the experimental archaeology is innovative, and there have been tested specific and mostly unknown aspects about the use of lithic tools. The data coming from the large literature and the unexpected results are crossed together as to understand the hunting strategies, the behaviour, the movements, the seasonal settlements and the possible connection between human groups in this large area of North-Central Italy at the end of Pleistocene.
Manuel, Ramos Pablo. „Raman and x-Ray Fluorescence Spectroscopy Data Fusin for Identification of Pigments in Works of Art“. Doctoral thesis, Universitat Rovira i Virgili, 2006. http://hdl.handle.net/10803/9014.
Der volle Inhalt der QuelleSeveral reasons for the spectroscopic investigation of antiquities and art objects can be pointed out. One of them is the interest in the materials and techniques in use during a certain period or region. This knowledge may be utilized for roughly dating the art object (retrieving pigments with a known date of invention may indicate that the artifact dates from a more recent period). Another reason is that this analysis is a useful source of information during a restoration or conservation treatment, and signs of a previous restoration, retouching or even forgeries can be found.
At the beginning of this century investigation in cultural heritage became an important research field that posed great scientific interest, requiring unprecedented interdisciplinary knowledge of a wide spectrum of areas such as history, archaeology, physics, chemistry, engineering, chemometrics and many other disciplines. On the other hand, improvements in the instrumental techniques used have been the goal of many important studies. Even more, in this decade the investigation has been focalized on the development of a new generation of instruments which allows the combination of complementary analytical techniques along with the advantage of portable instrumentation. Both improvements permit a robust and non-destructive chemical analysis of works of art which are difficult or impossible to study in a laboratory (highly valuable masterpieces, large paintings, and wall paintings).
Chemometrics methods are the necessary complement to these instrumental improvements. In order to maximize the robustness of these instruments, automatic and robust data processing tools are needed to obtain the maximum possible information from a work of art.
This doctoral thesis presents a framework to perform data-fusion systems for classification analysis of pigments investigated in the field of cultural heritage. These systems were developed and evaluated within a European Community research project, the main objective of which was to develop a portable micro Raman and micro X-ray fluorescence instrument (PRAXIS).
The general aim of this doctoral thesis is to study different strategies for the implementation of Raman-XRF data-fusion systems, in order to improve classification analysis of pigments investigated in the field of cultural heritage. This study takes into account the nature of the different interferences usually encountered in these types of signals and its elimination by developing dedicated algorithms. Moreover, this study evaluates automation in classification analysis by developing inference systems.
In order to reach that global aim these particular objectives are defined:
1) To study the nature of stochastic events and signal interferences present in Raman and XRF spectroscopy in order to enable the implementation of chemometrics techniques for classification. This is done in more detail for Raman data, due to the fact that this technique is mainly used in this field for "fingerprint" analysis. The methodology used is Wavelet transform and the improvements achieved in this area are presented in a paper entitled Noise and background removal in Raman spectra of ancient pigments using wavelet transform.
2) To establish the capabilities of a fuzzy logic system for automatic pigment identification. This issue is presented in a paper entitled Fuzzy logic for identifying pigments studied by Raman spectroscopy.
3) To review the current state-of-art of data-fusion in analytical chemistry and to establish actual data-fusion methodologies onto a Raman-XRF sensor fusion system. The performance of each data-fusion architecture is discussed in a paper entitled Micro Raman and X-ray fluorescence spectroscopy data fusion for the classification of ochre pigments.
4) To improve data-fusion methodologies by dual-domain analysis achieved by Wavelet transform. The achievements are presented in two papers Data fusion and dual-domain classification analysis of pigments studied in works of art and Data fusion in the wavelet domain by means of fuzzy aggregation connectives.
5) To define the necessary parameters and propose a methodology to implement data-fusion strategies in Raman and XRF spectroscopy.
Structure
The thesis has been structured in different chapters, each one containing the following information:
Chapter 1 is a theoretical chapter; the first part gives an overview of the basic concepts and latest advances in the fields of micro-Raman spectroscopy and micro-X ray fluorescence spectrometry. The characteristics of a new instrument which combines both techniques are presented along with the improvements achieved in that area. In the second part, the background of chemometrics techniques used in this work is presented.
Chapter 2 introduces the framework for the study of ancient pigments. It describes the nature of samples analyzed and gives an overview of the different techniques used in the creation of works of art throughout the years. Finally, the instruments used in this doctoral thesis for preliminary and final validation analysis are described.
Chapter 3 deals with the data pre-treatment needed before applying chemometric techniques, both for classification and data-fusion. In that respect, the first part focuses on the principles of Wavelet transform as a tool to eliminate signal interferences. This chapter includes a paper in which the development of an innovative method to eliminate noise and background signals from Raman spectra simultaneously is presented. It has been successfully applied for Raman spectra of ancient pigments.
Chapter 4 presents a preliminary study of automatic analysis of pigments by means of soft computing solutions such as Fuzzy logic. A published paper is presented in which Fuzzy logic is used to perform an automatic system for pigment identification. This study is extended to a fusion model and X-ray fluorescence analysis data is incorporated in the developed identification system. The ability of fuzzy logic to process imprecise information is described in the last part of this chapter.
Chapter 5 deals with three data-fusion architectures and their analysis by means of hard computing solutions as Principal components analysis (PCA) and Partial least squares - discriminant analysis (PLS-DA). The models are implemented for the classification of a set of ancient pigments from Byzantine iconography. Benefits and drawbacks of each method are pointed out.
Chapter 6 incorporates a new innovative strategy for data-fusion. The fusion of data in the wavelet domain is discussed and two approaches are presented for Raman and X-ray fluorescence data-fusion: Mid-level and High level dual domain data-fusion. Both are used and successfully applied for the automatic identification of pigments in classification problems with different levels of difficulty. Two papers are included in which both methods are used for the classification of ancient pigments, which face difficult identification problems. These two methods combine the benefits described in the previous chapters of this thesis with the consequent improvement of classification results. The developed systems are suitable to perform a rapid and automatic classification of ancient pigments.
Chapter 7 presents a review of the state of the art regarding data-fusion. The different steps necessary to achieve a proper data fusion are discussed.
Finally, Chapter 8 presents the conclusions of the thesis and suggests some possible issues for future research.
Fusión de datos en espectroscopias Raman y de fluorescencia de rayos X para la identificación de pigmentos en trabajos de arte
Desde mediados de los años 80s, las espectroscopias Raman y de fluorescencia de rayos X (XRF) se pueden considerar técnicas instrumentales de fácil aplicación en el análisis químico. Uno de los ámbitos de gran aplicación de dichas técnicas se centra en el estudio científico de una obra de arte y de los materiales utilizados en su creación.
Existen varias razones para la investigación de antigüedades y objetos de arte por medio de técnicas espectroscópicas. Una de ellas es el estudio de los materiales y técnicas aplicados durante un cierto período o en una determinada región. Este conocimiento puede ser muy útil para ubicar aproximadamente un objeto de arte en una determinada época o periodo. Otra razón es que este análisis es una importante fuente de información para la restauración o el tratamiento de conservación, y permite encontrar señales de una restauración anterior, de repintado o de falsificaciones.
Desde el comienzo de este siglo, la investigación en el patrimonio cultural se sitúa como un campo de la investigación importante con un gran interés científico. Esta investigación, requiere un importante trabajo multidisciplinario que implica a especialistas en áreas como historia, arqueología, física, química, ingeniería, quimiometría y otras disciplinas. Por otro lado, el objetivo de muchos trabajos científicos y estudios importantes, ha sido el desarrollo y las mejoras en estas técnicas instrumentales de análisis. Más aun, en esta década la investigación está enfocada en el desarrollo de una nueva generación de instrumentos que permiten la combinación de técnicas analíticas complementarias junto con la ventaja de una instrumentación portátil. Ambas mejoras permiten un análisis químico robusto y no destructivo de los objetos de arte, en especial de aquellos en los que resulta difícil o casi imposible de estudiar en un laboratorio. Como por ejemplo obras de arte de gran valor y pertenecientes al patrimonio cultural del país, pinturas de grandes dimensiones y pinturas realizadas en murales.
Los métodos Quimiométricos de análisis son el complemento necesario a estas mejoras instrumentales. Con objeto de aumentar al máximo la robustez de estos instrumentos, es necesario proveerlos de herramientas de procesamiento automáticas y robustas para obtener el máximo de información del objeto bajo estudio.
Esta tesis doctoral, presenta un marco de referencia para realizar fusión de datos para la clasificación e identificación de pigmentos estudiados en el campo de patrimonio cultural. Estos sistemas se desarrollan y evalúan dentro de un proyecto de investigación de la comunidad europea. El objetivo principal de este proyecto ha sido desarrollar un instrumento portátil para realizar espectroscopias Raman y de fluorescencia de rayos-X (PRAXIS).
El objetivo general de esta tesis doctoral es estudiar diferentes estrategias para el desarrollo de sistemas de fusión de datos Raman y XRF para mejorar la clasificación de pigmentos. Este estudio contempla la naturaleza de las distintas interferencias que habitualmente se encuentran en estos tipos de mediciones (espectros) y su eliminación por medio del desarrollo de metodologías adecuadas. También, se evalúa la posibilidad de automatización en el proceso de clasificación.
Para alcanzar este objetivo global, se definen los siguientes objetivos particulares:
1) Estudiar la naturaleza de eventos estocásticos (ruido) e interferencias habitualmente presentes en espectroscopia Raman y XRF, con el fin de facilitar la aplicación de técnicas quimiométricas de clasificación. Este estudio se realiza más profundamente para los espectros obtenidos por espectroscopia Raman, ya que es la técnica principalmente utilizada en este campo para una identificación del tipo "huella digital." La metodología usada es la transformada Wavelet y las mejoras logradas se presentan en un artículo titulado "Ruido y eliminación de señales de fondo en espectros Raman de pigmentos antiguos por medio de la transformada Wavelet".
2) Establecer un sistema de lógica difusa para la identificación automática de pigmentos. Este estudio se presenta en un articulo titulado "Lógica difusa para identificar pigmentos estudiados por espectroscopia Raman".
3) Estudiar la situación actual de aplicaciones y desarrollos de fusión de datos en química analítica y establecer las metodologías de fusión de datos reales en un instrumento Raman-XRF. Los resultados obtenidos en distintos modelos de fusión de datos se discute en un articulo titulado "Fusión de espectros Raman y de fluorescencia de rayos X para la clasificación de pigmentos ocres".
4) Mejorar las metodologías de fusión de datos por medio del análisis en el dominio dual dado por la transformada Wavelet. Los logros obtenidos se presentan en dos artículos "Fusión de espectros y análisis de clasificación en el dominio dual de pigmentos estudiados en obras de arte" y "Fusión de datos en el dominio Wavelet por medio de conectores de agregado difuso".
5) definir los parámetros necesarios y proponer a una metodología llevar a cabo las estrategias de fusión de espectros en espectroscopias Raman y XRF.
Estructura
La tesis ha sido la estructura en capítulos diferentes, donde cada uno contiene la siguiente información:
El capítulo 1 es un capítulo teórico; donde en una primera parte se da una apreciación global de los conceptos básicos y de los últimos adelantos en espectroscopias Raman y de fluorescencia de rayos X. Las características de un nuevo instrumento que combina ambas técnicas se presentan junto con las mejoras logradas en él. En una segunda parte, se describen las técnicas quimiométricas usadas en este trabajo.
El capítulo 2 describe la naturaleza de las muestras estudiadas y de su uso en la creación de obra de arte. Finalmente, se describen instrumentos Raman y XRF usados en esta tesis doctoral.
El capítulo 3 presenta el tratamiento necesario en los datos antes de aplicar las técnicas quimiométricas, ya sea para la clasificación y/o fusión de datos. En ese sentido, se presenta un estudio de la aplicación de la transformada Wavelet como una herramienta para eliminar las interferencias señaladas. Este capítulo incluye un artículo en el que nosotros presentamos el desarrollo de un método innovador para eliminar simultáneamente las señales de ruido y fondo es espectros Raman.
El capítulo 4 presenta un estudio preliminar del análisis automático de pigmentos por medio de la lógica difusa. Se presenta artículo donde la lógica difusa es utilizada para realizar un sistema automático de identificación de pigmentos. Este estudio se extiende a un modelo de fusión y por el cuál la información obtenida por XRF es incorporada en el sistema de identificación desarrollado.
El capítulo 5 presenta tres arquitecturas de fusión de datos y el posterior análisis por medio de técnicas quimiométricas como el análisis de componentes Principal (PCA) y la regresión por mínimos cuadrados parciales para análisis discriminante (PLS-DA). Los modelos se llevan a cabo con el estudio de pigmentos antiguos referidos a la iconografía bizantina. Esta parte acaba señalando los beneficios y desventajas de cada método.
El capítulo 6 presenta una nueva estrategia para la fusión de datos, que es la fusión de datos en el dominio del wavelet. Se discuten los fundamentos y se presentan dos modelos de fusión de datos Raman y XRF en el dominio wavelet: El nivel medio y el nivel alto, ambos se aplican a la identificación automática de pigmentos. Dos artículos son incluidos, donde se describen ambos métodos y se presenta su aplicación para la clasificación de pigmentos antiguos.
El Capítulo 7 presenta un estudio sobre el estado actual en la investigación de fusión de datos y su aplicación en química analítica. Las etapas necesarias para desarrollar métodos apropiados de fusión de análisis.
Finalmente, en el capítulo 8 presenta las conclusiones de la tesis y propone posibles trabajos de investigación futura.
Akintayo, Akinbowale Mark. „Landscape Analyses for Mobility and Raw Materials Procurement Strategies:The Acheulean Site of Santa Ana Cave in Calerizo de Cáceres, Extremadura, Spain“. Doctoral thesis, Universitat Rovira i Virgili, 2019. http://hdl.handle.net/10803/667145.
Der volle Inhalt der QuelleEste trabajo presenta un estudio de la procedencia de materiales líticos cuarcíticos de la cueva de Santa Ana en Calerizo de Cáceres. Calerizo de Cáceres es un sistema kárstico confinado entre colinas cuarcíticas con abundantes materiales líticos y disponibilidad de recursos de aguas superficiales y subterráneas. La caracterización macroscópica o visual de muestras arqueológicas, así como las fuentes geológicas se utilizaron para determinar la procedencia de los materiales. La comparación de los resultados de la caracterización de materiales arqueológicos se realizaron utilizando los resultados obtenidos de las fuentes geológicas como referencias para el aprovisionamiento de fuentes. El análisis espacial de los datos obtenidos durante la prospección del paisaje, así como el Modelo de Elevación Digital del área, se utilizaron para analizar el patrón de movimiento en el paisaje desde la Cueva de Santa Ana hasta los depósitos geológicos de las materias primas, que se encontran en el mismo paisaje del estudio utilizando un Análisis de ruta de menor coste (LCP) en SIG. Los resultados obtenidos mostran que tanto las fuentes primarias como las secundarias fueron explotadas por grupos prehistóricos para la adquisición de materias primas, además la distancia máxima recorrida para adquirir estos materiales no se extiende más de 15 km. Asimismo, un grupo de estas fuentes se encontran ubicado a una distancia de aproximadamente 1,5 km de la cueva de Santa Ana. Los depósitos aluviales también fueron explotados como fragmentos de rocas transportadas desde los cerros cuarcíticos que rodean el Calerizo de Cáceres.
This work presents a study of the provenance of quartzitic lithic materials from the cave of Santa Ana in Calerizo de Cáceres. Calerizo de Cáceres is a karstic system confined between quartzitic hills with abundant lithic materials and availability of surface and groundwater resources. Macroscopic or visual characterization of archaeological samples, as well as the geological sources was employed to determine the provenance of materials. Through comparison of results from characterization of archaeological materials using the results from those of the geological sources as references for source provisioning. Spatial analysis of location data collected during prospecting of the landscape as well as Digital Elevation Model of the area were used to analyze the movement pattern on the landscape from the site (Santa Ana Cave) to geological deposits of raw materials present within the studied landscape using Least-Cost Path (LCP) analysis in GIS. The results showed that both primary and secondary sources were exploited by prehistoric groups for raw materials procurement and the maximum distance travelled to acquire these materials do not extend beyond 15 km. A cluster of these sources were found to be located at distance of about 1.5 km from the Santa Ana Cave. Alluvial deposits were also exploited as fragments of rocks transported downslope from the quartzitic hills which surround the Calerizo de Cáceres.
Caracausi, Sandro. „Geological context of lithic industries in Delia-FiumeGrande valley, Santa Ninfa (TP): Hypothetic early human population in Sicily?“ Doctoral thesis, Universitat Rovira i Virgili, 2018. http://hdl.handle.net/10803/670600.
Der volle Inhalt der QuelleEl primer poblamiento humano en Sicilia es uno de los temas más debatidos en arqueología y antropología desde el descubrimiento de las industrias líticas atribuidas al Paleolítico Inferior-Medio en Sicilia. En particular, las industrias líticas se encuentran en Fiume-Grande / Delia Valley (oeste de Sicilia meridional, distrito de Trapani, Italia). El objetivo principal de esta tesis es llenar el vacío geológico en relación con la relación entre el artefacto lítico encontrado en esta región y el territorio; mediante la aplicación de un estudio multidisciplinario (actividades de campo, sedimentología, petrografía y paleontología). La investigación se llevó a cabo utilizando diferentes enfoques geológicos: geología de mapeo, análisis sedimentario y análisis petrográfico. Se realizaron estudios geológicos para identificar litologías, sus relaciones estratigráficas y para caracterizar la geomorfología del área. En pocas palabras, la investigación abarcó diferentes campos de investigación, lo que permite recopilar mucha información útil para contextualizar las industrias líticas del valle del río Grande \ Delia desde un punto de vista geológico. El análisis sedimentológico, petrográfico, paleontológico y topográfico del territorio muestra cómo existía la posibilidad de un ambiente favorable para la presencia humana dentro del valle y durante el Pleistoceno medio-tardío, con una rápida transición del ambiente marino al continental y la formación de terrazas fluviales
The early human peopling in Sicily is one of the most debated topics in archaeology and anthropology since the discovery of lithic industries attributed to the Lower- Middle Palaeolithic in Sicily. In particular, lithic industries found in Fiume-Grande/Delia Valley (Western Southern Sicily, Trapani District, Italy). The principal objective of this thesis is to fill the geological gap concerning the relationship between the lithic artefact found in this region and the territory; through the application of a multidisciplinary study (field activities, sedimentology, petrography and palaeontology). The research was carried out using different geological approaches: mapping geology, sedimentary analysis and petrographic analysis. Geological surveys were undertaken to identify lithologies, their stratigraphic relationships, and to characterise the geomorphology of the area. In a nutshell, research covered different research field, allowing to collect much information useful to contextualise lithic industries of Grande\Delia river valley from a geological point of view. The sedimentological, petrographic, palaeontological and survey analysis on territory show how there was the possibility of a favourable environment for human presence inside the valley and during the Late-Middle Pleistocene, with a rapid transition from marine to the continental environment and formation of fluvial Terraces.
Vita, Gerlando. „Pleistocene cave paleosols and sediments in northern sicily. Palaeoenvironmental reconstruction“. Doctoral thesis, Universitat Rovira i Virgili, 2021. http://hdl.handle.net/10803/671689.
Der volle Inhalt der QuelleLa mayoría de las secuencias paleontológicas y arqueológicas del Pleistoceno continental de Sicilia se encuentran en cuevas y refugios rocosos, pero los depósitos a menudo son complicados de estudiar porque presentan perturbaciones y alteraciones de diversos tipos. Las investigaciones geoarqueológicas y paleoambientales son muy difíciles en cuevas donde vivían animales fosorial como las hienas. Esta tesis tiene como objetivo estudiar en particular dos cuevas ubicadas en el norte de Sicilia, habitadas por hienas y humanos. Estos sitios tenían una ocupación humana que se remonta a la primera colonización estable de Sicilia durante el período epigravettiano. Las asociaciones de vida silvestre y los resultados del análisis de los sedimentos de las cuevas investigadas contribuyen a proporcionar una documentación estratigráfica del Pleistoceno de la isla. Los sedimentos y los suelos se han estudiado utilizando la micromorfología para la génesis de los depósitos, para encontrar señales de remodelación, minerales posteriores a la deposición y para encontrar cualquier rastro humano
Most of the paleontological and archaeological sequences of the continental Pleistocene of Sicily are found in caves and rocky shelters, but the deposits are often complicated to study because they present disturbances and alterations of various kinds. Geoarchaeological and paleoenvironmental investigations are very difficult in caves where fossorial animals such as hyenas lived. This thesis aims to study in particular two caves located in northern Sicily, inhabited by both hyenas and humans. These sites had a human occupation dating back to the first stable colonization of Sicily during the Epigravettian period. The wildlife associations and the results of the analysis of the sediments of the caves investigated contribute to providing stratigraphic documentation of the island's Pleistocene. The sediments and soils were studied using micromorphology for the genesis of the deposits, to find reworking signals, post-depositional minerals and to find any human traces. This technique served to understand depositional history, both natural and anthropic.
Chancellor, Andrew Martin. „Epidemiology of motor neuron disease in Scotland, 1989-90 : a prospective study of incidence, clinical features and prognosis, and incorporating a case control study of antecedent environmental factors“. 1992. http://hdl.handle.net/2292/5515.
Der volle Inhalt der QuelleAkanda, Muhammad Kamal Hossen. „Holocene alluvial geoarchaeology of Wari-Bateshwar, Bangladesh“. Doctoral thesis, 2016. http://hdl.handle.net/10348/6163.
Der volle Inhalt der QuelleThe Wari-Bateshwar is a celebrated theme among the contemporary intelligentsia in Bangladesh archaeology. A few recent publications have recently illuminated different aspects of the archaeological places and claims that are much debated in academia. This region contains archaeological remains with a probable age of 5th-4th century BCE based on the stylistic dating of artifacts and radiocarbon dating, but their stratigraphic context is not clear. Wari and Bateshwar are two adjoining villages sited in Balabo Thana of Narsingdi District, north-eastern part of Bangladesh. This research is an attempt to know the nature and formation processes of the archaeological materials in the alluvial terrain of Wari-Bateshwar with special reference to alluvial geoarchaeology. One of the basic landform of the study area is Madhupur Tract, which an old (Pleistocene) formation of Bangladesh. Methodologically this study is divided into three steps: literature review, fieldwork and laboratory work. During fieldwork sediments samples have been collected from fifteen localities. Various types of laboratory analyses are used in this research. As more relevant, Laser Particle Size Analyzer and X-ray diffraction were used to identify the grain size and clay mineral composition. After the completion of these methodological steps, the result of the analyses indicates distal fluvial/delta plain depositional environments and it is also found that archaeological records in different occurrences of Wari-Bateshwar have been relocated. The findings also suggest that formation and modification of the archaeological materials have been engendered by low energy fluvial activity like floods. Textural and compositional data help in the characterization of the depositional environments during the Late Holocene (< 3000 yrs BP) and it is also found that archaeological materials of this area have been relocated and modified by low energy fluvial activity as well as flood related processes (overbank). Clay mineralogy is dominated by illite and kaolinite, indicating similar climate conditions to the present ones. The analyses of historical maps and landscape history suggest that along with very active alluvial processes, changes in the shoreline, particularly the eastern part of the delta in Late Holocene have been significant.
Παπαναγιώτου, Χρήστος. „Λεξιλόγιο και μορφολογική ανάλυση της γλωσσικής ποικιλίας του Νεοχωρίου Υπάτης“. Thesis, 2010. http://nemertes.lis.upatras.gr/jspui/handle/10889/3962.
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Αυλωνίτη, Στυλιανή-Ζαΐρα Π. „Μορφολογική εξέταση του ρηματικού συστήματος του κερκυραϊκού ιδιώματος“. Thesis, 2006. http://nemertes.lis.upatras.gr/jspui/handle/10889/903.
Der volle Inhalt der QuelleThe main aim of this master thesis is to investigate the particularities that are observed in the dialect of Corfu concerning the verbal system. The corfiot dialect is a member of the Ionian Sea dialects in Greece. Due to its historical background, the island of Corfu has followed a separate route, which influences dramatically the spoken language until today and differentiates it from Standard Modern Greek. This master thesis is orientated to morphological analysis. It is divided into six chapters. The first two chapters are introductory and afford information about the historical background, emphasizing on the extended borrowing coming from the dialect of Venice, and the main discernible dialectal characteristics of the today spoken language in Corfu. The next four chapters are dedicated to morphological analysis. Having noticed the main divergencies that are observed in the inflectional paradigm in the local dialect, I will examine the factors that play a crucial role in the formation of the corfiot inflectional paradigm. Having taken into serious consideration the proposal of Ralli (1988) concerning the verbal classification according to which the allomorphic pattern that verbs present classifies them into two main classes, and the proposal of Ralli (2005) referring to the way that the allomorphic pattern determines the reconstruction of the system of inflectional classes (functioning as an inflectional class demarcator), I will try to apply these proposals to my linguistic data coming from the Corfiot verbal system. Furthermore, having ended the morphological analysis for the trends that are visible and concern Inflection, I will examine the obligatory presence of the verbal augment in the corfiot dialect. In the sixth chapter, I will make some comments on the productivity of several derivational suffixes and I will focus my interest on the extremely productive derivational suffix –aro (which has italian origin). At the end of this master thesis, there is an extended appendix, in which I refer to the written material on which I based my morphological analysis.
Μαρκάτη, Κωνσταντίνα. „Υδρολογική μελέτη στην περιοχή Κέρκυρας“. Thesis, 2012. http://hdl.handle.net/10889/5891.
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Πολίτη, Μαυρέτα. „Υδρογεωλογική μελέτη στην περιοχή του δήμου Απολλώνιων Ν. Λευκάδας“. Thesis, 2013. http://hdl.handle.net/10889/7875.
Der volle Inhalt der QuelleThe study area, is located in the municipality of Apollonian, part of the prefecture of Lefkas. Its bedrock, to the western part consists of the carbonic sequence of Paxos Zone that is covered by clastic sediments.Its tectonics arecharacterized by a fragmented closed anticline, with large radius of curvature, called the unit Lefkata. While the eastern part consists of the series of carbonate formations of the Ionia Zone, the flysch formations and ends with the Miocene sequence. The relation between those two zones is that the second one is obducted over the first one. Finally above all those aforementioned formations, on the flat section recent alluvium were deposited. As part of this work, water levels were measured of the unconfined aquifer on the flat region and groundwater samplings have been taken, in order to define the hydrogeological and hydro-chemical conditions that prevail in the broader region. Furthermore, meteorological data of the area were collected and analyzed and in addition a geomorphological map of the area was constructed with the use of geographical information systems (GIS).
Δόγανος, Δημήτριος. „Η κατάσταση στη φύση και η δημιουργία μόνιμων επιφανειών παρακολούθησης του ενδημικού φυτού Quercus trojana Webb subsp. euboica (Papaioannou) K. I. Chr“. Thesis, 2010. http://nemertes.lis.upatras.gr/jspui/handle/10889/4513.
Der volle Inhalt der QuelleEvvia is the second largest greek island, which is characterized by a great variety of terrain, geologic substrate and altitude, especially in its northern part. In combination with the climate, the appropriate conditions are met that favor the evolvement of rare or endangered plant species and subspecies of great scientific interest. Quercus trojana subsp. euboica, the euboean oak as it is commonly reffered to, is one of the most interesting plant taxa that grow in northern Evvia. Not only is it one of the local endemic taxa of northern Evvia, but it is the unique endemic subspecies of the Quercus genus in Greece. It has been characterized as vulnerable (VU) according to the IUCN (2001) categories and the C1 criteria, though it has yet not been included in a protectin law regime. It has been under the constant pressure of human impact such as fire, browsing and timbering. During this study, monitoring the status of the endemic taxon Quercus trojana subsp. euboica has begun. The monitoring process involves the repeated measurement of multiple factors and variables (such as measurement of height/diameter, soil-coverage, florescence, fruition, germination/viability of individuals etc.) in a length of time and area extent. A number of ten monitoring plots was set, each plot occupying a surface of 25 m2 in total, with 25 subplots of 1 m2. The study lasted three years and was conducted throughout the year. Multiple measurements took place (geographic length and width, altitude, gradient, exposure etc.), while plant samples were collected in the framework of a full floristic analysis and each monitoring plot was thoroughly photographed. A taxonomic assessment of the plant samples was conducted according to the latest bibliography, as well as a distinction of biomorphs and geographic elements. Moreover, a phytosociologic analysis was conducted according to the Braun-Blanquet method. Thus, 93 different taxa were found in the vicinity of the territories that Quercus trojana subsp. euboica takes up. Asteraceae and Poaceae families were found to be dominant in the plots with a percentage of 17% and 6% respectively. Hemicryptophyts represent 41%, while the Mediterranean elements dominate with a percentage of 44,1%. Nevertheless, 18 greek endemic plant taxa were found, 6 of which are local endemics of Evvia. Thereinafter, all of the monitoring plots were registered in the TurboVeg database and the TWINSPAN (Two-way indicator species analysis) program was used in order to group the plots. Furthermore, the DCA method (Detrended Correspondence Analysis-DECORANA) was used for the creation of a graphic display of the phytosociologic data index. The SPSS 13.0 program was used so that a Cluster Analysis was conducted, using the Neighbor Joining Method for the 10 plots. The Jaccard presence-absence indicator was used. In a nutshell, this study showed that Quercus trojana subsp. euboica territories of appearance have been reduced after the 1977 wildfire, while the taxon’s population is in danger due to the constant pressure of goat grazing. Concluding, measures for better protection of the taxon are proposed.
Margiotta, Maria Cristina. „Il territorio di Leopoli-Cencelle: gli strumenti della cartografia storica e della fotointerpretazione per la lettura delle trasformazioni paesaggistiche“. Thesis, 2012. http://eprints.bice.rm.cnr.it/5719/1/Tesi_totale.pdf.
Der volle Inhalt der QuelleΣιδηροπούλου, Άννα. „Γεωλογικές και γεωτεχνικές συνθήκες στο χωμάτινο φράγμα του Ευήνου“. Thesis, 2014. http://hdl.handle.net/10889/7850.
Der volle Inhalt der QuelleExtended research took place in order to cover the waterwork needs of Athens and reinforce water dynamic of Mornos reservoir. This reservoir reinforcement include the construct of dam in Evinos river and the integrative tunnel. The tunnel will transfer water from Evinos to Mornos reservoir. For the building of this dam there was need of many geological and geotechnical studies. These studies prevent the dam’s failure. The following studies contain both field tests and controlled laboratory tests. The first part of this study explains the geographical position of the dam (A. Dimitrios area). The rest of the study focuses on parts review, recommendable works and occurring landslides during its construction. Lithology, tectonics and hydrogeology on the building area is also included along with the consequences of the dam construction on the area. The second part analyzes the laboratory and field work tests. The above tests took place at the preliminary design stage of the dam. The filled work tests include the boring of test drillings and the placement of piezometers. The main pursuit of the lab studies is to determine some of the rock characteristics like general physic properties, mechanical strength and mineralogy. The results of the lab studies were used for the formation of specific diagrams. The end of this study summarizes the conclusions of the tests and includes an appendix of the maps of this area.
Issa, Hassan. „The analysis of Toeplitz operators, commutative Toeplitz algebras and applications to heat kernel constructions“. Doctoral thesis, 2012. http://hdl.handle.net/11858/00-1735-0000-000D-F066-5.
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