Thesis (M.S. in civil engineering)--Washington State University, May 2007. / Includes bibliographical references (p. 73-77).

Den här rapporten har utrett möjligheten att automatiskt identifiera diken frånflygburet insamlat LiDAR-data. Den metod för identifiering som har valts harförst skapat en höjdbild från LiDAR-data. Därefter har den tagit fram kandidatertill diken genom att vektorisera resultatet från en linjedetektering. Egenskaper-na för dikeskandidaterna har sedan beräknats genom en analys av höjdprofilerför varje enskild kandidat, där höjdprofilerna skapats utifrån ursprungliga data.Genom att filtrera kandidaterna efter deras egenskaper kan dikeskartor med an-vändarspecificerade mått på diken presenteras i ett vektorformat som underlättarvidare användning. Rapporten beskriver hur algoritmen har implementerats ochpresenterar också exempel på resultat. Efter en analys av algoritmen samt förslagpå förbättringar presenteras den viktigaste behållningen av rapporten; Att det ärmöjligt med automatisk detektering av diken. / This Master’s thesis is investigating the possibility of automatically identifyingditches in airborne collected LiDAR data. The chosen approach to identificationcommences by creating an elevation picture from the LiDAR data. Then it usesthe result of a line detection to exhibit candidates for ditches. The properties forthe various candidates are calculated through an analysis of the elevation profile forthe candidates, where the elevation profiles are created from the original data. Byfiltering the candidates according to their calculated properties, maps with ditchesconforming to user-specified limits are created and presented in vector format.This thesis describes how the algorithm is implemented and gives examples ofresults. After an analysis of the algorithm and a proposal for improvements, itis suggested that automatic detection of ditches in LiDAR collected data is anachievable objective.

Thesis (M.S.)--West Virginia University, 2000. / Title from document title page. Document formatted into pages; contains xiv, 134 p. : ill. (some col.). Vita. Includes abstract. Includes bibliographical references (p. 75).

Thesis (M.Sc.)--College of William and Mary. / Includes bibliographical references.

Orientador: David de Carvalho / Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Agricola / Made available in DSpace on 2018-08-09T10:03:42Z (GMT). No. of bitstreams: 1 Vedroni_JoseWilson_M.pdf: 4373066 bytes, checksum: 71b191b108a627ae96907308f1d21aea (MD5) Previous issue date: 2007 / Resumo: Estudo de caso sobre aplicação do RCD (Resíduos de Construção e Demolição), da cidade de Piracicaba São Paulo. Estes resíduos que são popularmente chamados de entulhos são os descartes dos resíduos da construção civil, da demolição de habitações, áreas comerciais e industriais. Estima-se que a cidade de São Paulo gera cerca de dezessete mil toneladas destes resíduos diariamente, representando no Brasil de 41-70 % dos resíduos sólidos urbanos. Estes resíduos, quando não reutilizados e não gerenciados, acabam acarretando impactos negativos ao meio ambiente e à saúde da população, degradando o aspecto visual das cidades, provocando enchentes com o entupimento das tubulações de águas pluviais e com o assoreamento dos rios e córregos. O Conselho do Meio Ambiente, baixou uma resolução denominada RESOLUÇÃO CONAMA 307, de 5 de julho de 2002, em que determina a responsabilidade de todos os Municípios e o Distrito Federal, proibindo o descarte do RCD em lixões, bota-foras ou em aterros sanitários exigindo a elaboração de um plano de gerenciamento integrado dos resíduos incluindo os de construção e principalmente sua reciclagem e utilização. Este trabalho que é de cunho ambiental, faz uma abordagem sobre estes resíduos, uma breve revisão bibliográfica sobre sua dimensão e aplicação em projetos afins, estuda suas características físicas, mecânicas e químicas para verificação de possíveis contaminantes e propõe um modelo para a sua reciclagem e utilização de forma sustentável nas reabilitações dos pavimentos construídos pelas equipes de manutenção do SEMAE (Serviço Municipal de Água e Esgoto de Piracicaba), após intervenções nas redes de água que abastecem e na que realiza o esgotamento sanitário para a população. Desta forma este estudo de caso, pretende contribuir, como mais um procedimento que os órgãos públicos e privados, possam utilizar como meio de resolver este grave problema, que é dar uma solução segura para a utilização destes resíduos / Abstract: Case study on the application of RCD (Residues of Construction and Demolition) in the city of Piracicaba, São Paulo. These residues, popularly known as dumps, are waste from civil construction, from demolition of houses, commercial and industrial areas. It is estimated that the city of São Paulo produces approximately seventeen thousand tons of this type of residues daily. In Brazil, this accounts for 41-70 % of solid urban waste. If not reused or managed, this waste ultimately causes a negative impact on the environment and on the health of the population; it degrades urban looks and causes floods because it clogs rainwater piping. It also aggrades rivers and streams. The Environment Council has issued a resolution, named CONAMA Resolution no. 30, dated 5 July, 2002, which determines the accountability of all Cities and the Federal District for waste, and forbids waste disposal in dumps or sanitary landfills. An integrated waste management plan must be developed including construction waste and particularly waste recycling and utilization. This paper is of an environmental nature. It provides an approach to these residues, a brief review of the bibliography about its dimension and application in similar projects, it reviews its physical, mechanical and chemical characteristics to detect possible contaminants. The paper also proposes a model for sustainable waste recycling and reuse in pavement recovery carried out by maintenance teams from SEMAE (Municipal Service of Water and Sewer from Piracicaba), after intervention in water supply and sewage networks that serve the population. In this manner this case study intends to be one more tool that public and private agencies can use as a means to solve these serious problem by providing a safe solution to use these residues / Mestrado / Construções Rurais e Ambiencia / Doutor em Engenharia Agrícola

Excess nutrients entering aquatic systems cause negative effects downstream. Oxidation-reduction potential (Eh) is an inexpensive proxy which can be used to define the potential nutrient reducing capacity of a system, in particular denitrification. My thesis attempts to determine effects of hydrology and vegetation manipulations on Eh in an agricultural drainage ditch with weirs using continuous automated data loggers to monitor the system. Accuracy and precision of the continuous automated data loggers was confirmed through laboratory and field testing. Effects of hydrology and vegetation on Eh were quantified during testing from May-September 2012 in east-central Mississippi. Vegetation affected Eh (t=-1.75, P=0.08, df=9,754) whereas changes in hydrology also affected Eh (t=7.05, P<0.001, df=9,754). Modeling of these variables indicated the interaction of hydrology and vegetation was the most influential factor measured. Through management of hydrology and vegetation in ditches, Eh can be managed to create conditions conducive for denitrification.

The thesis explores various aspects of ecology of endangered damselfly Coenagrion ornatum, the specialists for lowland headwaters, in post-mining streams of Radovesicka spoil. The first part of thesis is manuscript which has been already submitted in Journal of Insect Conservation. In the first part, we focused on population estimate of the local population using capture-recapture method, and explored its habitat requirements across life stages and spatial scales. In the next part, I assess mobility of the focal species and reveals basic distribution patterns. Finally, the thesis suggest various implications for restoration of post-mining freshwaters and conservation of the studied species.

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Eva Novozámská Dynamics of moss overgrowth in ditches in restorated drained mires in area of Modrava bogs (Šumava NP) Abstract This thesis is devoted to a research of induced and natural Sphagnum overgrowth in dammed ditches in restorated drained mires of Šumava National Park within the "Programme of Peatland restoration". Induced overgrowth was studied on the peatlands Cikánská slať, Luzenská slať and Novohuťské močály and 36 permanent experimental sites were established for its study. In 2006 Sphagnum fallax or Sphagnum majus were placed in each site in dependence on the type of locality. For four years increase or decrease of Sphagnum were monitored. The study of natural overgrowth was investigated on the same localities as induced overgrowth. The Sphagnum cover was noted in the year 2009 at 65 sites. The depth of the ditch and the flow of water were the most important variables influencing natural overgrowth and the cover was almost the same on all localities. In the case of induced overgrowth the most important parameters were depth and width of the ditch, amount of the branch support and the interaction of depth and width. The depth of the ditch in the case of natural overgrowth was used to generate a model for prediction of Sphagnum cover. It was possible to compare the induced overgrowth with the...