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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
21

Sustainability indicators in marine capture fisheries

Potts, Tavis William. January 2003 (has links)
Thesis (Ph. D.)--University of Tasmania, 2003. / Title from PDF title page (viewed on June 11, 2005). Includes bibliographical references (p. 373-393).
22

Timing and characterization of the change in the redox state of uranium in Precambrian surface environments a proxy for the oxidation state of the atmosphere /

Pollack, Gerald D. January 2008 (has links)
Thesis (Ph. D.)--Georgia State University, 2008. / Title from file title page. Eirik J. Krogstad, committee chair; Andrey Bekker, committee co-chair; W. Crawford Elliott, Timothy E. LaTour, committee members. Description based on contents viewed Aug. 27, 2009. Includes bibliographical references (p. 207-219).
23

Terrestrial and aquatic mollusks as environmental indicators at the Brogley Rockshelter, Grant County, Wisconsin /

Harms, Sheena. January 2008 (has links)
Thesis (B. S.)--University of Wisconsin -- La Crosse, 2008. / Also available online. Includes bibliographical references (leaves 16-17).
24

An exploratory study on developing a framework for adopting community-oriented approach in constructing 3D social-based sustainable development indicators /

Cheng, Rosangela Fung Ping. January 2005 (has links)
Thesis (M.Phil.)--Hong Kong University of Science and Technology, 2005. / Includes bibliographical references (leaves 179-188). Also available in electronic version.
25

Quantifying stand structural complexity in woodland and dry sclerophyll forest, south-eastern Australia

McElhinny, Chris. January 2005 (has links)
Thesis (Ph. D.)--Australian National University, 2005. / Title from PDF title page (viewed on Oct. 6, 2006). Thesis is broken up into 12 separate PDF files, plus one PDF file consisting of the entire document. Includes bibliographical references (p. 178-200).
26

Modelagem fuzzy aplicada a políticas públicas : proposta de um indice municipal de qualidade ambiental /

Silva, Fábio Nowak da. January 2015 (has links)
Orientador: José Arnaldo Frutuoso Roveda / Banca: Magda da Silva Peixoto / Banca: Gerson Araújo de Medeiros / Resumo: O objetivo desse trabalho foi construir um índice de qualidade ambiental para o município de Votorantim (SP), fuzzy aplicado ao suporte às decisões do Conselho Municipal de Meio Ambiente (COMDEMA). Através da construção de um sistema de coleta de informações previamente estruturado, cria-se um modelo matemático, utilizando a teoria dos conjuntos fuzzy, observando a realidade econômica, social, administrativa e ambiental do município. Foram selecionados três grupos de indicadores como forma de buscar uma equação que expresse da melhor forma possível a realidade do município com relação à sua qualidade ambiental unidos, posteriormente, em um índice global. O cálculo foi realizado segundo conceitos da matemática "fuzzy", com auxílio do pacote Fuzzy Logical Toolbox 2.1 do programa Matlab® 6.1 (The MathWorks, Inc.), que disponibiliza arquivos e funções destinados a algumas aplicações da teoria de conjuntos fuzzy. O trabalho criou um método de inferência sobre a ação antrópica nas cidades em relação ao meio ambiente,muitas vezes relegado a segundo plano nas discussões de políticas públicas. A elaboração deste índice e sua aplicação ao municipio de Votiorantim, serviu como uma importante ferramenta de mobilização social em prol de índices melhores pois sua comparação entre a primeira inferencia,no ano de 2000, e a segunda, no ano de 2013, houve evolução local.Portanto possibilitando mensurar o desenvolvimento da localidades diversas / Abstract: The aim of this study was to develop an environmental quality index for the city of Votorantim (SP), fuzzy applied to support the decisions of the Municipal Council for the Environment (COMDEMA). By building a previously structured information collection system, it creates a mathematical model using the theory of fuzzy sets, noting the economic reality, social, administrative and environmental municipality. Three groups of indicators were selected in order to seek an equation that expresses in the best way possible the reality of the city with respect to its environmental quality together later in a global index. The calculation was performed according to concepts of mathematics "fuzzy", with the help of Fuzzy Logical Toolbox 2.1 program package Matlab 6.1 (The MathWorks, Inc.), which provides functions for files and some applications of the theory of fuzzy sets. The work created a method of inference about human action in cities in relation to the environment, often relegated to the background in public policy discussions. The development of this index and its application to the municipality of Votiorantim, served as an important social mobilization tool serving the best rates for your comparison between the first inference, in 2000, and the second, in 2013, there was local development .so measure enabling the development of several locations / Mestre
27

Gestão de resíduos sólidos urbanos : integração de indicadores ambientais e econômicos por meio da avaliação do ciclo de vida /

Paes, Michel Xocaira. January 2018 (has links)
Orientador: Gerson Araujo de Medeiros / Coorientador: Sandro Donnini Mancini / Resumo: A gestão dos resíduos sólidos urbanos (RSU) se apresenta como um dos grandes desafios contemporâneos, e para a correta tomada de decisões e elaboração de políticas públicas, o desenvolvimento, uso e análise de ferramentas de gestão se fazem necessárias. A Avaliação do Ciclo de Vida (ACV) vem se demonstrando uma adequada ferramenta para o diagnóstico e elaboração de cenários, tanto para o conhecimento e análise de sistemas, quanto para a comparação de alternativas. Assim, este trabalho teve como objetivo integrar indicadores econômicos aos aspectos e indicadores ambientais, por meio da ACV, para estruturar e propor diretrizes de gestão e políticas públicas de RSU. Um estudo de caso foi desenvolvido na cidade de Sorocaba, estado de São Paulo, Brasil, e estruturado em etapas que avaliassem o Sistema de Gestão de RSU (SGRSU) existente, propusessem alternativas de melhorias, construísse cenários e ainda desenvolvesse indicadores econômicos integrando-os aos aspectos e às análises realizadas por meio do desempenho ambiental dos cenários. Por meio dessas etapas do trabalho, pôde-se compreender o funcionamento do SGRSU e seus principais impactos ambientais, e por meio dos cenários, avaliar que, para um melhor desempenho ambiental, faz-se necessário investimentos em ações que contemplem a melhoria da eficiência do sistema de coleta seletiva, o maior reaproveitamento dos resíduos secos (por meio da reciclagem) e úmidos (por meio da compostagem e/ou Tratamento Mecânico Biológico - TMB),... (Resumo completo, clicar acesso eletrônico abaixo) / Abstract: A management of municipal solid waste (MSW) is presented as one of the major contemporary challenges, and for the correct decision making and public policy elaboration, it is necessary the development, use and analysis of management tools. Life Cycle Assessment (LCA) has shown to be adequate for the scenario diagnosis and elaboration, both for knowledge and systems analysis, as for a comparison of alternatives. Thus, this work aimed to integrate economic indicators to the environmental aspects and indicators, through the LCA, in order to structure and propose MSW public policies and management guidelines. A case study was developed in the city of Sorocaba, state of São Paulo, Brazil, and structured in stages that evaluated the existing MSW Management System (MSWMS), which proposed alternatives for improvement, built scenarios and also developed economic indicators integrating them to the aspects and analyzes performed through the scenario environmental performance. Through these work steps, it was possible to understand the MSWMS operation and its main environmental impacts, and through the scenarios, to evaluate that, for a better environmental performance, it is necessary to invest in actions that contemplate the selective collection system efficiency improvement, better dry waste reuse (through recycling) and wet (through composting and / or Mechanical and Biological Treatment - MTB), in addition to the energy utilization of these wastes (through MTB and incineration). The... (Complete abstract click electronic access below) / Doutor
28

Modelagem fuzzy aplicada a políticas públicas: proposta de um indice municipal de qualidade ambiental

Silva, Fábio Nowak da [UNESP] 16 July 2015 (has links) (PDF)
Made available in DSpace on 2015-10-06T13:03:31Z (GMT). No. of bitstreams: 0 Previous issue date: 2015-07-16. Added 1 bitstream(s) on 2015-10-06T13:18:26Z : No. of bitstreams: 1 000850541.pdf: 445792 bytes, checksum: 68ccb145ec5360d2cf49d428abac3bae (MD5) / O objetivo desse trabalho foi construir um índice de qualidade ambiental para o município de Votorantim (SP), fuzzy aplicado ao suporte às decisões do Conselho Municipal de Meio Ambiente (COMDEMA). Através da construção de um sistema de coleta de informações previamente estruturado, cria-se um modelo matemático, utilizando a teoria dos conjuntos fuzzy, observando a realidade econômica, social, administrativa e ambiental do município. Foram selecionados três grupos de indicadores como forma de buscar uma equação que expresse da melhor forma possível a realidade do município com relação à sua qualidade ambiental unidos, posteriormente, em um índice global. O cálculo foi realizado segundo conceitos da matemática fuzzy, com auxílio do pacote Fuzzy Logical Toolbox 2.1 do programa Matlab® 6.1 (The MathWorks, Inc.), que disponibiliza arquivos e funções destinados a algumas aplicações da teoria de conjuntos fuzzy. O trabalho criou um método de inferência sobre a ação antrópica nas cidades em relação ao meio ambiente,muitas vezes relegado a segundo plano nas discussões de políticas públicas. A elaboração deste índice e sua aplicação ao municipio de Votiorantim, serviu como uma importante ferramenta de mobilização social em prol de índices melhores pois sua comparação entre a primeira inferencia,no ano de 2000, e a segunda, no ano de 2013, houve evolução local.Portanto possibilitando mensurar o desenvolvimento da localidades diversas / The aim of this study was to develop an environmental quality index for the city of Votorantim (SP), fuzzy applied to support the decisions of the Municipal Council for the Environment (COMDEMA). By building a previously structured information collection system, it creates a mathematical model using the theory of fuzzy sets, noting the economic reality, social, administrative and environmental municipality. Three groups of indicators were selected in order to seek an equation that expresses in the best way possible the reality of the city with respect to its environmental quality together later in a global index. The calculation was performed according to concepts of mathematics fuzzy, with the help of Fuzzy Logical Toolbox 2.1 program package Matlab 6.1 (The MathWorks, Inc.), which provides functions for files and some applications of the theory of fuzzy sets. The work created a method of inference about human action in cities in relation to the environment, often relegated to the background in public policy discussions. The development of this index and its application to the municipality of Votiorantim, served as an important social mobilization tool serving the best rates for your comparison between the first inference, in 2000, and the second, in 2013, there was local development .so measure enabling the development of several locations
29

Development of 3D and 360 GIS-Based Models to Visualize Projected Sea Level Rise in Coastal Virginia

Vinson, Candice M. 01 January 2023 (has links) (PDF)
Science communication is a skill that can be strengthened with practice. Like any skill, it helps to know what you need to practice in order to get better at it. When presenting information to an audience, the skill of science communication comes into play as early as the first draft of a presentation. As you think about how you will tell your story to the audience, you likely consider including text on slides, images, graphs, maps, or even videos. However, it is crucial to remember that accessibility barriers are something we must often consciously work to rid our presentations of, in order to make sure we are telling the same story to everyone in the audience. How you present your research inherently determines the way in which your audience learns and engages with that information. If a presentation has many accessibility barriers, it can lead to an incomplete picture forming for members of your audience. For instance, if a member of your audience experiences colorblindness, they may not be able to get a full understanding of your charts, maps, or graphs depending on your color choices. Individuals that have difficulty with hearing may not be able to clearly perceive your take home messages without captions or clear points in easily readable fonts. Doing something small like enabling captions in your presentation can help more than just those that are hard of hearing follow along, but also audience members who use visual assistance with auditory processing or who do not have the same native language as the one in which you are presenting (Cooke et al., 2020). This project is going to dive into one of the examples from earlier: maps. Maps used in the scientific community for disseminating information to general audiences have historically been two dimensional, with some exceptions. However, thanks to the ease of access to rapidly evolving technology, turning the story of your spatiotemporal data into a 3D map with 360 visualization that tells a more powerful story to your audience is becoming more common. One use example of this is modeling projected sea level rise (SLR) in coastal communities, which will be the focus of this capstone. Capstone products: Included in zip file under Download Button: Capstone paper Accessibility Tips for Scientific Presentations.[PDF] Link: https://go.wm.edu/b6g7S5 360 Scene of Norfolk Sea Level Rise Projections.[3VR file] Norfolk_SLR_VIMS_CCRM_Data_360VR.3vr Link: https://go.wm.edu/j9mgFQ Link Only: 3D Map of Norfolk Sea Level Rise Projections:https://go.wm.edu/QdYPGq
30

Storm event impact on organic matter flux, composition and reactivity in Taskinas Creek, VA

Cammer, Sarah Schillawski 01 January 2015 (has links)
Carbon export from the land to the ocean are an important part of the global carbon cycle, linking terrestrial watersheds and the global carbon cycle. Burial of terrestrial organic carbon represents a long term sink for atmospheric CO2. Approximately 0.4 Pg Cy-1 is delivered to the global ocean from rivers, equally divided between POC and DOC. However, the amount of carbon entering the ocean is a small portion of the total amount entering rivers from the terrestrial environment, suggesting a large amount of processing in inland waters and estuaries. Most monitoring efforts have focused the processing of organic matter on baseflow conditions. However, recent studies have shown that POC and DOC exported during storm events, a small time period during a hydrologic year, can account for the majority of the annual carbon exported from small watersheds. This dissertation identifies the impact different magnitudes of storm events have on the source, composition and reactivity of organic carbon released to downstream waters from the terrestrial environment at Taskinas Creek, Virginia. The proximity of the Creek to the York River estuary, the changes in water table at the site, along with the small size of the watershed allowing opportunity to examine the connectivity between the watershed processes and delivery of organic matter made the site ideal for identifying how hydrology and environment alter POM and DOM export and reactivity. The sources, composition and flux of DOM and POM were measured during four storm events of different magnitudes to determine how events impacted the sources and fluxes of organic matter and the % reactive DOC exported. Events of different magnitudes with varying sources of DOC and POC had similar % reactive DOC that was not predicted using excitation emission spectroscopy. The events resulted in DOC fluxes 1.5-490 fold higher than baseflow. POC fluxes for storm were 6.7-55 times higher than DOC fluxes. Although the % reactive DOC did not increase during storm event conditions, coupled with the overall flux, storm events represent a considerable pulse of % reactive DOC to downstream waters, well above baseflow levels. When considered with increases in storm intensity due to climate change, storm event fluxes of reactive OM may have broad impacts on estuaries and the global carbon cycle through changes in carbon storage.

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