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Dissertations / Theses on the topic 'Georadars'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Абрамович, А. О. "Радіолокаційно-вихрострумовий метод обробки сигналів георадарів". Thesis, Сумський державний університет, 2013. http://essuir.sumdu.edu.ua/handle/123456789/44118.

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Відома значна кількість конструкцій металодетекторів (найпоширенішого різновиду георадарів), які мають різне призначення. Всі вони поділяються на три основні типи за принципом дії (передача- прийом, генератор биття частот, імпульсна індукція) і мають різну схемотехніку, що пояснює наявність на ринку багатьох моделей від різних фірм-виробників. Саме принципом дії визначається призначення металодетекторів: для пошуку чорних металів (наприклад, розмінування) та кольорових (археологічні, геологічні розвідки та ін.). При цьому, селекція кольорових металів (мідь, золото, срібло, тощо) ними не здій

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2

Parnadi, Wahyudi Widyatmoko. "Kennwert-Schätzung aus Georadar-Transmissionsdaten." Doctoral thesis, Technische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola&quot, 2009. http://nbn-resolving.de/urn:nbn:de:swb:105-5191779.

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Neben der Ausbreitungsgeschwindigkeit ist die Absorption elektromagnetischer Wellen der wichtigste Parameter für die Bearbeitung und Interpretation von Georadar-Daten. Für die realitätsnahe Beschreibung der Ausbreitung elektromagnetischer Wellen in Gesteinen eignet sich das Modell mit konstantem Q und einem Dispersionsansatz der Phasengeschwindigkeit nach Futterman (1982). Anhand von Modellrechnungen wird die Wirkung dieser Parameter auf Wavelets untersucht. Die Ermittlung des absorptionscharakterisierenden Gütefaktors Q aus GPR-Transmissionsdaten erfolgt auf der Basis einer Erweiterung der Q-

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3

Parnadi, Wahyudi W. "Kennwert-Schätzung aus Georadar-Transmissionsdaten /." [S.l. : s.n.], 2001. https://fridolin.tu-freiberg.de/archiv/html/GeowissenschaftenParnadiWahyudi%5FWidyatmoko519177.html.

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4

Gross, Ralf. "3-D georadar surveying of active faults /." [S.l.] : [s.n.], 2002. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=14971.

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5

Girard, Jean-Francois. "Imagerie georadar et modelisation des diffractions multiples." Phd thesis, Université Louis Pasteur - Strasbourg I, 2002. http://tel.archives-ouvertes.fr/tel-00135945.

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Le géoradar est une technique couramment utilisée pour prospecter le proche sous-sol. Des ondes électromagnétiques à hautes fréquences (>10 MHz) sont émises dans le sol et les échos enregistrés traduisent les contrastes de permittivité diélectrique entre les différents milieux. Cela permet d'imager les changements de lithologie, des états de fracturation différents, des variations de teneur en eau... Dans ces milieux diélectriques, l'onde perturbe les distributions de charges électriques liées et induit une polarisation qui à son tour influe sur l'onde et déforme le signal. En accord avec les

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6

Jesus, Thales Eduardo Silva de. "Imageamento digital de paleocavernas colapsadas com georadar." Universidade Federal do Rio Grande do Norte, 2012. http://repositorio.ufrn.br:8080/jspui/handle/123456789/18821.

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Made available in DSpace on 2015-03-13T17:08:32Z (GMT). No. of bitstreams: 1 ThalesESJ_DISSERT.pdf: 669387 bytes, checksum: 33a20d208304804215535ed96770330f (MD5) Previous issue date: 2012-04-27<br>In this study, the methodological procedures involved in digital imaging of collapsed paleocaves in tufa using GPR are presented. These carbonate deposits occur in the Quixer? region, Cear? State (NE Brazil), on the western border of the Potiguar Basin. Collapsed paleocaves are exposed along a state road, which were selected to this study. We chose a portion of the called Quixer? outcrop for makin

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7

Messinger, Jens. "Optimierte Auswertestrategien zur Kennwertermittlung mittels Georadar-Tomographie." Berlin mbv, Mensch-und-Buch-Verl, 2008. http://d-nb.info/998082473/04.

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8

Costa, André João de Vilhena. "Utilização do georadar na caracterização de pavimentos rodoviários." Master's thesis, Departamento de Engenharia Civil, 2009. http://hdl.handle.net/10316/15693.

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9

Franco, Dulce Alexandra Lourenço. "Avaliação das potencialidades do georadar em engenharia civil." Master's thesis, Universidade de Aveiro, 2010. http://hdl.handle.net/10773/3648.

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Mestrado em Engenharia Civil<br>Esta dissertação incide sobre a aplicação de uma técnica geofísica não destrutiva, designadamente o Ground Penetrating Radar (GPR), também denominado por georadar. Na componente prática deste trabalho são apresentados exemplos de aplicações utilizados para estudar as potencialidades do equipamento de georadar existente no Instituto Politécnico de Tomar. O GPR foi utilizado em dois solos, em pavimentos betuminosos, em duas paredes, em duas lajes de betão armado e numa ponte de alvenaria de pedra. Os resultados obtidos na aplicação do GPR em solos mostram que este

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10

Bentley, Andrew Phillip Keller. "Characterizing Subsurface Complexity of Aeolian Morphotypes with Georadar." Master's thesis, Temple University Libraries, 2013. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/226136.

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Geology<br>M.S.<br>Aeolian landforms are classified based on their plan morphology, which is a function of sediment transport volume, wind direction, and vegetation. In the case of compound landforms or two-dimensional exposures (outcrops), there is insufficient information for discriminating between 3D morphotypes (e.g., barchans vs. parabolic dunes). To characterize the dip-section architecture of near end-member morphologies (interacting barchans and sparsely vegetated parabolics), a series of axial transects were selected from >25 km of high-resolution (500 MHz) ground-penetrating radar (G

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11

Barraca, Nuno Ricardo Silva. "Aplicação da técnica Georadar à reabilitação de património edificado." Master's thesis, Universidade de Aveiro, 2013. http://hdl.handle.net/10773/12102.

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Mestrado em Engenharia Geológica<br>A reabilitação tem vindo a ganhar importância na construção civil em Portugal. Esta reabilitação, particularmente no caso do património edificado, deve ser feita por forma a garantir a preservação das características do imóvel, preservando assim a identidade da arquitetura das nossas cidades. Para que a reabilitação de um edifício seja adequadamente efectuada é necessário que o seu estudo seja adequado, nomeadamente no que diz respeito à caracterização dos materiais de construção, alterações ao edifício, estado das fundações, patologias e característi

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12

Di, Prinzio Monica. "GEORADAR: applicazioni ingegneristiche finalizzate alla difesa idraulica del territorio." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2009. http://amslaurea.unibo.it/327/.

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L’oggetto di questo lavoro è la verifica dell’applicabilità e dell’efficacia del GPR per identificare la presenza di cavità scavate da animali all’interno di manufatti arginali. In particolare, sono stati messi in luce soprattutto i limiti e le potenzialità di questa tecnica rispetto alle diverse condizioni ambientali nelle quali ci si trova ad operare e al grado di risoluzione del problema.

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13

Lehmann, Frank. "Automation in 3D georadar investigations: new acquisition and processing techniques /." Zürich, 1999. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=13007.

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14

Liebs, Göran [Verfasser], Jens [Akademischer Betreuer] Tronicke, and Michael [Akademischer Betreuer] Weber. "Georadar-Wellengeschwindigkeiten mit Fehlerrechnung / Göran Liebs ; Jens Tronicke, Michael Weber." Potsdam : Universität Potsdam, 2014. http://d-nb.info/1218405317/34.

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15

Silva, Tiago André Gomes da. "Estudo hidrogeoquímico e mapeamento de georadar do aquífero superficial de Estarreja." Master's thesis, Universidade de Aveiro, 2016. http://hdl.handle.net/10773/17320.

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Mestrado em Engenharia Geológica<br>Desde os anos 30 do século XX que a região de Estarreja é reconhecida pela sua atividade industrial. A partir da década de 50, esta zona torna-se no terceiro principal polo da indústria química nacional após a criação do Complexo Químico de Estarreja (CQE). A instalação deste complexo químico conduziu ao aumento do grau de contaminação do solo e das águas superficiais e subterrâneas, tornando a zona envolvente numa área de elevado risco ambiental. Na presente dissertação foram conjugados os dados de um estudo geofísico (georadar), com os dados de uma campan

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16

Ernst, Jacques Robert. "2-D finite-difference time-domain full-waveform inversion of crosshole georadar data /." Zürich : ETH, 2007. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=17105.

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17

Calleberg, Kerstin. "Stora torget : En geofysisk undersökning med georadar (GPR) av Stora torget i Sigtuna." Thesis, Stockholms universitet, Arkeologiska forskningslaboratoriet, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-139004.

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This paper contains geophysical analysis of the largest town square in Sigtuna, Sweden. The studied area is approximately 736 m2. The purpose of the study was to search for early medieval house remnants and to possibly find structures matching those found during excavations in other parts of the town. The hypothesis is that the town of Sigtuna was planned and that the yards of the town were put out in a special pattern following the main street, which is the same as today. During the day of the geophysical prospection the weather conditions were not optimal. A lot of water at the surface distu

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18

Faria, Sandro Henrique de. "O uso do georadar na determinação de parâmetros da estrutura de pavimentos flexíveis." Universidade Federal de Viçosa, 2010. http://locus.ufv.br/handle/123456789/3721.

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Made available in DSpace on 2015-03-26T13:27:54Z (GMT). No. of bitstreams: 1 texto completo.pdf: 4751258 bytes, checksum: 0e480b21213f063f9d31d1243a36f77a (MD5) Previous issue date: 2010-06-29<br>This paper aims to analyze the Ground Penetrating RADAR as tool in the determination of the thickness of the layers of the flexible road pavement of automatic way and the density of the asphalt layer supported by integrated testing of GPR and geotechnical data. The first experiment was conducted at the Presidente Dutra highway (BR116), Pirai - RJ, while the data for the second experiment were obtain

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19

ALMEIDA, Fabíola Magalhães de. "Estudo da contaminação por hidrocarbonetos em postos de serviços de Abaetetuba-PA utilizando georadar." Universidade Federal do Pará, 2007. http://repositorio.ufpa.br/jspui/handle/2011/5752.

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Submitted by Cleide Dantas (cleidedantas@ufpa.br) on 2014-07-07T16:26:23Z No. of bitstreams: 2 license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) Dissertacao_EstudoContaminacaoHidrocarbonetos.pdf: 41584794 bytes, checksum: 41f866ddd99a53516013534f91781996 (MD5)<br>Rejected by Irvana Coutinho (irvana@ufpa.br), reason: Item sem assunto. on 2014-08-07T16:28:11Z (GMT)<br>Submitted by Cleide Dantas (cleidedantas@ufpa.br) on 2014-08-07T16:44:35Z No. of bitstreams: 2 license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) Dissertacao_EstudoContaminacao

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Kopcznski, Karen A. "Bioturbation in Supratidal Carbonates: Georadar Characterization of the Patterns and Structure of Decapod Burrows." Master's thesis, Temple University Libraries, 2017. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/462532.

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Geology<br>M.S.<br>Bioturbation in supratidal carbonate substrates has only recently received attention from ichnologists, relying primarily on traditional ground-based techniques. This study is the first high-resolution geophysical investigation of three decapod species inhabiting adjacent coastal biotopes on San Salvador Island. Extensive (>2 km) 800 MHz georadar surveys captured a diverse suite of >120 burrows of ghost (Ocypode quadrata), blackback (Gecarcinus lateralis) and blue (Cardisoma guanhumi) land crabs. Site-specific post-processing protocols were used to establish characteristic a

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21

Homeister, Anne. "Reflections in the dark : Ground-penetrating radar surveys for the detection of Viking Age and early medieval harbor remains in Sigtuna, Sweden." Thesis, Stockholms universitet, Arkeologiska forskningslaboratoriet, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-119894.

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In this thesis a ground-penetration radar survey was carried out in four areas, Borgmästarängen, Draken, Urmakaren and Koppardosan in Sigtuna. The aim of this paper is to detect remnants of the Viking Age harbor at those chosen sites. Former research investigations have discovered findings which are related to shipbuilding like clench nails, rivets and boat nails; however, the question remains whether Sigtuna ever had a central harbor, and researchers suggested instead that every town plot had its own mooring. This paper addresses this question by deploying geophysical surveys to increase the

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22

Silva, Luís Anselmo da. "Uso de georadar (GPR) e retroanálises de deflexões como suporte a análises probabilísticas de desempenho de pavimentos." reponame:Repositório Institucional da UnB, 2014. http://repositorio.unb.br/handle/10482/17355.

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Tese (doutorado)—Universidade de Brasília, Faculdade de Tecnologia, Departamento de Engenharia Civil e Ambiental, 2014.<br>Submitted by Ana Cristina Barbosa da Silva (annabds@hotmail.com) on 2014-12-12T15:42:49Z No. of bitstreams: 1 2014_LuisAnselmodaSilva.pdf: 8793480 bytes, checksum: 219fa229d166b322c605e0d578d3966f (MD5)<br>Approved for entry into archive by Raquel Viana(raquelviana@bce.unb.br) on 2014-12-12T18:53:51Z (GMT) No. of bitstreams: 1 2014_LuisAnselmodaSilva.pdf: 8793480 bytes, checksum: 219fa229d166b322c605e0d578d3966f (MD5)<br>Made available in DSpace on 2014-12-12T18:53:51Z

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23

Fritzsche, Martin [Verfasser]. "Anwendung von Verfahren der Mustererkennung zur Detektion von Landminen mit Georadaren / Martin Fritzsche." Karlsruhe : KIT-Bibliothek, 2001. http://d-nb.info/1013828747/34.

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24

Lake, Marshall A. "Georadar profile studies of the north and south Farrenburg, and, Commerce geophysical lineaments in the New Madrid Seismic Zone /." Available to subscribers only, 2006. http://proquest.umi.com/pqdweb?did=1136087201&sid=24&Fmt=2&clientId=1509&RQT=309&VName=PQD.

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25

Teixeira, Washington Luiz Evangelista. "Aquisi??o e constru??o de modelos est?ticos an?logos a reservat?rios petrol?feros com tecnologia lidar e georadar." Universidade Federal do Rio Grande do Norte, 2008. http://repositorio.ufrn.br:8080/jspui/handle/123456789/12879.

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Made available in DSpace on 2014-12-17T14:08:28Z (GMT). No. of bitstreams: 1 WashingtonLET.pdf: 1312901 bytes, checksum: a09f4b707e7b0180572364485eeb570c (MD5) Previous issue date: 2008-03-31<br>The present work develops a methodology to establish a 3D digital static models petroleum reservoir analogue using LIDAR and GEORADAR technologies. Therefore, this work introduce The methodolgy as a new paradigm in the outcrop study, to purpose a consistent way to integrate plani-altimetric data, geophysics data, and remote sensing products, allowing 2D interpretation validation in contrast with 3D,

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26

Grasmück, Mark Philip. "Development of a georadar system for three-dimensional imaging of the subsurface and its application to studies of crystalline rock bodies /." Zürich : [s.n.], 1995. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=11040.

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27

Böniger, Urs. "Attributes and their potential to analyze and interpret 3D GPR data." Phd thesis, Universität Potsdam, 2010. http://opus.kobv.de/ubp/volltexte/2011/5012/.

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Based on technological advances made within the past decades, ground-penetrating radar (GPR) has become a well-established, non-destructive subsurface imaging technique. Catalyzed by recent demands for high-resolution, near-surface imaging (e.g., the detection of unexploded ordnances and subsurface utilities, or hydrological investigations), the quality of today's GPR-based, near-surface images has significantly matured. At the same time, the analysis of oil and gas related reflection seismic data sets has experienced significant advances. Considering the sensitivity of attribute analysis wit

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BASIRICÒ, STEFANO. "Borehole flowmeter and hydrogeophysics surveys: new possibilities for characterizing hydrogeological heterogeneities." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2012. http://hdl.handle.net/10281/28146.

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The research subject of this PhD thesis consists in the development and application of techniques for analyzing well‐log, well‐test, and tracer data to infer the distribution of hydrologic properties in heterogeneous geologic settings, including fractured rock and complex aquifer systems. This thesis is organized in an introductory section presenting the state of the art about heterogeneous geologic media characterization and a focus on flowmeter log analysis. The second chapter regards applications of an integrated surveying approach where an hydrogeophysical characterization was used for

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Lindgren, Tore. "Characterization problems in radio measurement systems." Doctoral thesis, Luleå : Department of Computer Science and Electrical Engineering, Luleå University of Technology, 2009. http://pure.ltu.se/ws/fbspretrieve/3373091.

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Vettore, Luciana. "Prospezioni geofisiche ad alta risoluzione: applicazioni archeologiche ed esportabilità in contesti ambientali." Doctoral thesis, Università degli studi di Padova, 2008. http://hdl.handle.net/11577/3425141.

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In the present work we experienced different aspects of the application of high resolution geophysical methods in archaeology and their application to other fields, as for example the applied geology. We examined many cases, for every single case we tried to reach the best configuration in order to meet the starting demands; the aim of the works we carried over is to reach as much experience as possible, both in terms of instruments and of studied cases and to determine limits and what each technique can potentially bring to different contexts. To apply geophysical methods to archaeology i

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Penna, Tiago Attorre. "Por uma arqueologia marginal: as ocupações peri-sambaquieiras no entorno do sambaqui da Figueirinha II, Jaguaruna- SC, examinadas através do radar de penetração de solo." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/71/71131/tde-28042015-113313/.

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Este trabalho procurou por evidências das ocupações sambaquieiras para fora dos sambaquis, buscando eventos de ocupação relativos aos concheiros, mas externo a eles em áreas de alta dinâmica sedimentar. Para tanto se consorciou o radar de penetração de solo (GPR) ao sistema de navegação global por satélite (GNSS), funcionando em modo cinemático de tempo real (RTK), em um esforço de sensoriamento remoto em meio a um campo de dunas no Município de Jaguaruna, no litoral de Santa Catarina. Conseguimos, através do sensoriamento, realizar prospecções arqueológicas e encontrar estruturas marginais ao

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Iansig, Massimo. "Le strutture fluviali del porto romano di Aquileia. Implementazione di un sistema informativo geografico per la gestione di dati archeologici, dati laser scanner, profili georadar, analisi stratigrafiche." Doctoral thesis, Università degli studi di Trieste, 2009. http://hdl.handle.net/10077/3140.

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2007/2008<br>The objective of this Doctoral Thesis was to provide the archaeologists of the École Française de Rome, of CNRS Aix en Provence, and all those who carry out research on the territory of Aquileia with a tool enabling them to organize, store, visualize, share and compare the findings of a multitude of disciplines involved - their common subject being the ancient structures of the Fluvial Port of Aquileia. The study was carried out in the framework of a PICS-project and is based on the most recent findings on Roman Time - Aquileia, yet covering its complete history until the 19th and

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Pérez, Gracia María de la Vega. "Radar de subsuelo.Evaluación para aplicaciones en arqueología y en patrimonio histórico-artístico." Doctoral thesis, Universitat Politècnica de Catalunya, 2001. http://hdl.handle.net/10803/6216.

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.<br/>El georradar es una herramienta cada vez más utilizada en diferentes ámbitos geológicos, medioambientales y de Ingeniería Civil, así como en estudios de caracterización de yacimientos arqueológicos y de diagnóstico de daños en edificios del patrimonio histórico y cultural.<br/>En esta tesis se abordan aspectos metodológicos de calibración de la instrumentación y de caracterización de las propiedades electromagnéticas que rigen la propagación y atenuación de ondas electromagnéticas en los suelos. Por otra parte, se estudian aplicaciones en monumentos históricos, yacimientos arqueológicos

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Pires, Mirian Vaz d’Almeida de Jesus. "Caracterização geofísica e geotécnica de um campo de testes de métodos geofísicos, na Universidade de Aveiro." Master's thesis, Universidade de Aveiro, 2016. http://hdl.handle.net/10773/19102.

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Mestrado em Engenharia Geológica<br>No âmbito do projeto de dissertação foram adquiridos dados geofísicos e geotécnicos de uma zona de aterro da Universidade de Aveiro, com o objetivo de caracterizar a área de estudo através da correlação dos métodos geofísicos e geotécnicos. Para este efeito, foram realizados ensaios geotécnicos através do Penetrómetro Dinâmico Super Pesado (DPSH) com o intuito de determinar a resistência do solo à penetração dinâmica e estimar a litologia dos solos da sub-superfície. Utilizou-se o software RockWorks 17 para a interpretação e representação dos dados. Relativa

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35

Blaha, Jaroslav. "Stavební průzkum a diagnostika železobetonové konstrukce." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2018. http://www.nusl.cz/ntk/nusl-371857.

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The subject of this master’s thesis is the diagnostic survey of the industry cast-in-place hall. The thesis contains theoretical and practical part. The theoretical part is focused on available options of diagnostic methods and options of materials evaluation. The practical part contains material assessment of chosen elements of construction. This part of thesis is focused on localizing the position and the diameter of reinforcement in every single element. Next step is focused on the quality of the concrete, particularly compressive strength and modulus of elasticity. The modern machines, lik

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Tillmann, Tanja [Verfasser], Jürgen [Akademischer Betreuer] Wunderlich, and Andreas [Akademischer Betreuer] Vött. "Untersuchungen zu Aufbau, Stratigraphie und Genese von Nehrungshaken am Beispiel der Nordseeinseln Sylt und Amrum : eine Methodenkombination aus Georadar und sedimentologischen Analysen / Tanja Tillmann. Gutachter: Jürgen Wunderlich ; Andreas Vött. Betreuer: Jürgen Wunderlich." Frankfurt am Main : Univ.-Bibliothek Frankfurt am Main, 2015. http://d-nb.info/106817725X/34.

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Hawrylak, Monika, and Emma Nilsson. "Spatial and Temporal Variations in a Perennial Firn Aquifer on Lomonosovfonna, Svalbard." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-384176.

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A firn aquifer is a type of englacial water storage that forms when surface meltwater fills up the pore space in porous firn. If the retention time exceeds one year the feature is regarded as perennial. The melt and accumulation rates as well as the available pore space determine the formation and extent of the firn aquifer. Flow of water within the aquifer caused by gradients in hydraulic potential leads to redistribution of water and consequently to a change in the level of the water table. This thesis focuses on a perennial firn aquifer on the Lomonosovfonna ice field on Svalbard. Spatial a

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Bezzeghoud, Maissa. "Aplicação de técnicas geofísicas não invasivas à prospeção de sítios pré-históricos do Alentejo: 3 casos de estudo." Master's thesis, Universidade de Évora, 2020. http://hdl.handle.net/10174/28105.

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Cada vez mais os arqueólogos se apercebem que existe uma necessidade de estudar os sítios arqueológicos recorrendo a métodos não destrutivos e não intrusivos, dando importância às técnicas de prospeção geofísicas, em particular ao Georradar. Este é, na atualidade, uma das metodologias geofísicas mais utilizadas a nível mundial para o estudo arqueológico. Em Portugal a utilização destas metodologias para fins arqueológicos (e por arqueólogos) está ainda a dar os primeiros passos. Este trabalho pretende mostrar as potencialidades destas técnicas e incentivar os arqueólogos nacionais a abrirem as

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Dujardin, Jean-Rémi. "Imagerie géoradar (GPR) en milieu hétérogène : application aux failles actives en Mongolie et aux dépôts pyroclastiques du Tungurahua (Equateur)." Thesis, Strasbourg, 2014. http://www.theses.fr/2014STRAH008/document.

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Le géoradar est une méthode électromagnétique haute fréquence (>10 MHz) utilisé pour caractériser les premiers mètres du sous-sol. Lors de la présence d'une topographie, les données géoradar sont déformées en conséquence. Afin de retrouver la vraie géométrie des réflecteurs, nous avons codés un algorithme de migration prenant en compte la topographie. La méthode est démontrée grâce à un modèle synthétique simple, puis testée avec succès sur des données réelles. Les algorithmes de migration apportent cependant du bruit dans les données. Pour pallier à ce problème, deux méthodes ont été mises

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Slavětínský, Šimon. "Stavební průzkum a diagnostika konstrukce." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2017. http://www.nusl.cz/ntk/nusl-265608.

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The subject of this final thesis is the diagnostic survey of the prefabricated hall made of framed concrete in the areal of Fatra Chropyně. The thesis contains description of construction and technological survey and diagnostic methods. The practical part contains material assessing of chosen elements of construction (beam, column,precast floor slab). It is also focused on localization of position and diameter of reinforcement. Last step is focused on quality of the concrete, particularly compressive strength and strenght class of concrete.

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Paixão, Manuelle Santos Góis. "Análise da acurácia das estimativas de posicionamento do nível freático e dos teores de umidade do solo com o emprego dos métodos de sísmica de refração rasa e georadar a partir de um estudo no campus da USP, São Paulo/SP." Universidade de São Paulo, 2005. http://www.teses.usp.br/teses/disponiveis/14/14132/tde-31032006-192248/.

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A pesquisa teve como objetivo integrar o método GPR (Ground Penetrating Radar) com a sísmica de refração, visando o mapeamento do N.A. e a estimativa do teor de umidade em uma área de estudos hidrogeológicos no campus da USP, assim como analisar a acurácia da medida dos dois métodos. Foram realizados ensaios geofísicos, granulométricos, de teor de umidade, do grau de saturação, do monitoramento do N.A. e acompanhamento dos índices pluviométricos em três períodos com variações sazonais no decorrer de um ano denominados período chuvoso (janeiro/2004); período intermediário (abril/2004) e período

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Balas, Ondřej. "Průzkum a hodnocení stavu stavební konstrukce." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2015. http://www.nusl.cz/ntk/nusl-227512.

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This thesis is focused on the description and evaluation of the status of existing reinforced concrete and of the prefabricated overhanging structures. The first part describes the solution overhanging structures, followed by a description of selected diagnostic methods for determining the properties of concrete in the structure and to determine the degree and extent concrete reinforcement. The main objective is to determine the status of overhanging structures on the case static analysis and critical points of the support structure for the purpose of the planned revitalization of the object.

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Blomdahl, Klara. "Changes in the Cold Surface Layer on a Polythermal Glacier during Substantial Ice Mass Loss." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-251362.

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Climate change in the Arctic and sub-Arctic has induced substantial changes in the inland cryosphere. The warming climate is causing a reduction in glacier size and extent and the average net mass balance for Arctic glaciers have been negative over the past 40 years. Relatively few studies have been conducted concerning the development of the thermal distribution in glaciers during extensive volume changes. There is a possible diversity in how the thermal structure might change with a changing climate. Storglaciären is losing the cold surface layer in the ablation area and progressively becom

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Poppa, P. "L¿INDIVIDUAZIONE E LA CARATTERIZZAZIONE DEI SITI DI OCCULTAMENTO DI RESTI UMANI IN AMBITO FORENSE: APPLICAZIONI GEOPEDOLOGICHE E GEOARCHEOLOGICHE." Doctoral thesis, Università degli Studi di Milano, 2012. http://hdl.handle.net/2434/169989.

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In a forensic scenario one of the most complex situations is the search for buried human remains, which in Italy is often tied to cases involving organised crime. The burial of a body has an impact on the environment directly above and around the area in which the grave has been excavated. If the environmental alterations can be recognized and interpreted correctly they can supply information regarding the site of burial and location of the body. The study was performed in order to establish the impact that a disturbance, due to the excavation of a grave, and to verify the interaction betwe

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Teixeira, Washington Luiz Evangelista. "Um estudo das condi??es de percola??o e estabilidade em barragens de terra mediante m?todos geof?sicos: caso do dique de Sant Lloren? de Montgai - Espanha." Universidade Federal do Rio Grande do Norte, 2013. http://repositorio.ufrn.br:8080/jspui/handle/123456789/18368.

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Made available in DSpace on 2015-02-24T19:48:45Z (GMT). No. of bitstreams: 1 WashingtonLET_TESE.pdf: 9876489 bytes, checksum: b0b53c16cdf88ab9e63cb1b22c08ab0f (MD5) Previous issue date: 2013-06-17<br>The monitoring of Earth dam makes use of visual inspection and instrumentation to identify and characterize the deterioration that compromises the security of earth dams and associated structures. The visual inspection is subjective and can lead to misinterpretation or omission of important information and, some problems are detected too late. The instrumentation are efficient but certain techni

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Viberg, Andreas. "Framtidens forntid : Geofysisk och geokemisk prospektering av järnåldersgården RAÄ 108, Fresta sn, Uppland." Thesis, Stockholm University, Department of Archaeology and Classical Studies, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-7206.

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<p>This paper deals with archaeological prospection of an Iron Age farm site in Toland, Fresta parish, Uppland County in Sweden. The purpose of the paper has been to see whether the geophysical methods applied (GPR & EM-38) could produce useful results that could motivate its use in similar surveys in the future. Geochemistry has been used for the purpose of identifying possible activity areas on the site. The results have shown that it is possible with a GPR survey to identify postholes originating from the Migration Period longhouse at the site. The combining of several methods have been imp

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Kocuba, Robert. "Diagnostika a hodnocení prefabrikované železobetonové konstrukce." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2018. http://www.nusl.cz/ntk/nusl-372269.

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This thesis deals with inspection and constructionally technical research of reinforced concrete prefabricated construction from the second half of 20th century. In theoretical part, the research of literature, documents and valid standards is performed, with a focus on production and construction of prefabricated elements and also on the metodology of research. In practical part, the detection of reinforcement of individual elements of the construction and concrete properties is performed. The result of this work is the assessment of the state of the construction, static calculation of the ce

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Pernová, Jana. "Stavební průzkum a diagnostika konstrukce." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2019. http://www.nusl.cz/ntk/nusl-392306.

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The object of the theoretical part of this diploma thesis is overview of the historical development of reinforced concrete and concrete reinforcements, including the elaboration of a detailed methodology for the assessment of the state of bridge structures. It is applied in practical parts of two bridges independent on each other. There are used the most modern technologies like device Hilti PS1000, profometer PM-630 to diagnose objects and they are completed by chopped probe. It also includes a structural analysis of the load capacity, that concurrently evaluates the quality of the constructi

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Bernard, Lukáš. "Stavební průzkum a diagnostika železobetonové konstrukce." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2020. http://www.nusl.cz/ntk/nusl-409951.

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This diploma thesis deals with construction and technological survey of the reinforced concrete structure. The first part of the diploma thesis deals with the properties of the reinforced concrete and with the building survey methods applied in the second part of the thesis. The second part of the diploma thesis focuses on diagnostics of existing structure. More specifically, the hardness of the concrete is tested using a Schmidt hammer and then it is further specified by testing the cores. The reinforcement in the reinforced concrete is also tested using electromagnetic indicator, ground-pene

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Resl, Jaroslav. "Stavební průzkum a diagnostika konstrukce." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2016. http://www.nusl.cz/ntk/nusl-240360.

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The thesis is focused on the overview of the diagnostic methods for engineering surveys reinforced concrete constructions. The practical part explains engineering surveys of industrial building, evaluation of concrete strength on existing building and results from search reinforcements on individual elements. Next part is focused on load testing precast floor slab removed from construction and evaluation load capacity. The last part include structural design of elected parts (precast floor slab and beam).

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