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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.
1

Vegetated Swales in Urban Stormwater Modeling and Management

White, Kyle Wallace 29 May 2012 (has links)
Despite the runoff reduction efficiencies recommended by various regulatory agencies, minimal research exists regarding the ability of vegetated swales to simultaneously convey and reduce runoff. This study assessed the effect water quality swales distributed among upstream sub-watersheds had on watershed hydrology. The study was also posed to determine how certain design parameters can be dimensioned to increase runoff reduction according to the following modeling scenarios: base, base check dam height, minimum check dam height, maximum check dam height, minimum infiltration rate, maximum infiltration rate, minimum Manning's n, maximum Manning's n, minimum longitudinal slope, and maximum longitudinal slope. Peak flow rate, volume, and time to peak for each scenario were compared to the watershed's existing and predevelopment conditions. With respect to the existing condition, peak flow rate and volume decreased for all scenarios, and the time to peak decreased for most scenarios; the counterintuitive nature of this result was attributed to software error. Overall, the sensitivity analysis produced results contrary to the hypotheses in most cases. The cause of this result can likely be attributed to the vegetated swale design and modeling approaches producing an over designed, under constrained, and/or over discretized stormwater management practice. / Master of Science
2

Design Principles and Case Study Analysis for Low Impact Development Practices - Green Roofs, Rainwater Harvesting and Vegetated Swales

Ramesh, Shalini 27 September 2011 (has links)
This thesis on Low Impact Development (LID) Practices provides design guidelines and principles for three important LID practices: green roofs, rainwater harvesting and bioswales. The most important component of the thesis is the qualitative analysis of various case studies based on the LID objectives drawn from the literature review for each LID practice. Through the course of my research, I found that there was no one single source which provided information on the design guidelines accompanied by case examples which could help the designer with built examples where the LID practices have been executed. Therefore, developing this thesis document which provided all this information started as my masters thesis project. The document is designed to be used by people with a variety of expertise like landscape architects, landscape contractors, engineers and clients. The manual is organized into five chapters. The manual details the process of stormwater management and then gradually leads to the evolution of Low Impact Development Practices and detailing out three important LID practices: green roofs, rainwater harvesting, vegetated swales and briefly about infiltration systems. The LID principles outlined in this manual were developed over the last few years to address runoff issues associated with the new residential, commercial and industrial suburban developments. Information to develop this manual has been drawn from numerous sources like the Low Impact Design Strategies developed by the Prince George's County, Maryland, US EPA, Low Impact Development urban design tools and numerous other research papers. It is my hope that the manual will provide adequate information to its users by not only providing design guidelines but also provide built examples through the case studies. / Master of Landscape Architecture
3

Análise de domínio para avaliação de tesauros: uma experiência com a cadeia produtiva do calçado no Brasil

Lorenzon, Emilena Josimari [UNESP] 07 June 2011 (has links) (PDF)
Made available in DSpace on 2014-06-11T19:32:42Z (GMT). No. of bitstreams: 0 Previous issue date: 2011-06-07Bitstream added on 2014-06-13T18:43:57Z : No. of bitstreams: 1 lorenzon_ej_dr_mar.pdf: 1017854 bytes, checksum: ec2b138de0534d37e1c1d0069789fcc8 (MD5) / Buscou-se resolver o problema da cadeia produtiva do calçado no Brasil, enquanto domínios especializados, de não possuir uma linguagem de indexação específica e exaustiva para a organização e representação das suas informações, mostrando que o único instrumento de vocabulário controlado existente nesse setor produtivo, denominado Microtesauro do Couro e Calçado, produzido pelo Serviço Nacional de Aprendizagem Industrial - SENAI, não é suficiente para organizar, atualmente, todos os conteúdos abordados dentro do domínio em questão. Para isso, utilizamos os pressupostos teóricos de John Swales sobre análise de domínio e comunidades discursivas, aplicando os seguintes procedimentos metodológicos: 1) delimitação do domínio (definição de onde começa e onde termina), utilizando os princípios metodológicos propostos por Tennis (2003) e as 11 abordagens de Hjorland (2001; 2002) para sua análise, delimitando-o através das suas áreas de modulação e seu grau de especialização; 2) identificação dos usuários da terminologia, ou seja, as comunidades discursivas desse domínio; 3) seleção de uma categoria bem específica e duas facetas para a identificação de termos; 4) definição e seleção do corpus para o estudo; 5) utilização de uma tecnologia para a extração semiautomática de termos no corpus, eliminando aqueles que não são específicos na área, com auxilio de um especialista do setor; e finalmente 6) comparação de alguns termos, selecionados através de seu grau de especificidade no domínio, com os termos descritos no Microtesauro analisado. Pretendeu-se com a pesquisa verificar a possibilidade de avaliar tesauros a partir da análise de domínio conforme as perspectivas de Swales. Essa cadeia produtiva foi escolhida devido ao envolvimento profissional da pesquisadora no processo de organização de suas informações e conhecimentos / We tried to solve the problem of footwear production chain in Brazil, while specialized fields, it does not have an indexing language to specifically include the organization and representation of your information, showing that the only existing tool for controlled vocabulary in the productive sector, microthesaurus called the Leather and Footwear, produced by the National Service of Industrial Learning - SENAI is not enough to organize now, all the content covered within the area in question. We utilize the theoretical assumptions of John Swales on domain analysis, and discursive communities, applying the following methodology: 1) delineation of the domain (definition of where it begins and ends), using the methodological principles proposed by Tennis (2003) and approaches the 11 Hjørland (2001, 2002) for analysis, limiting it through their areas of modulation and the degree of specialization, 2) identification of users of the terminology, ie the discursive communities that domain, 3) selection a very specific category and two facets to the identification of terms, 4) definition and selection of the corpus for the study, 5) use of a technology for semi-automatic extraction of terms in the corpus, eliminating those that are not specific in the area, with the aid of an industry expert, and finally 6) comparison of some terms, selected by their degree of specificity in the field, with the terms described in microthesaurus analyzed. It was intended to research to verify the possibility of evaluating thesauri from the domain analysis as the prospects of Swales. This chain was chosen because the researcher's professional involvement in the process of organizing their information and knowledge
4

Implementering av öppna dagvattenanläggningar i innerstaden: En studie för att undersöka lämpligheten med öppna dagvattenlösningar i det befintliga stadsrummet

Johansson, Edd, Stenberg, Sofia January 2014 (has links)
Morgondagens samhällen står inför stora utmaningar såsom att hantera den ökande mängden intensiva och extrema nederbördstillfällen som förväntas att komma i framtiden. Lösningen finns i att planera och tänka på helheten om hur städerna på bästa sätt kan utformas med hjälp av funktionella öppna dagvattenlösningar för att ge en bra och effekt avrinning. Det gäller också att skapas förståelse att öppna dagvattensystem bidrar med positiva effekter till samhället, t.ex. genom att bli en resurs för stadens vegetation och grönområden och därav åstadkomma grönare och vackrare städer (Hållbar dag- och dränvattenhantering, 2011)och som gynnar folks hälsa(Viklander & Blecken 2012).Det urbana kretsloppet, skriver Butler & Davies (2011), ersätter en del av det naturliga kretsloppet och Lidström (2012) förklarar att det urbana kretsloppet lånar vatten från det naturliga och skapar då en extra loop för vattnets väg genom cirkel. Butler & Davies (2011) förklarar hur viktigt det är att det finns en förståelse kring konsekvenserna som uppstår när en del av det naturliga hydrologiska kretsloppet ersätts med en artificiell del för den urbana miljön. Lidström (2012) skriver att i naturen när det regnar och vattnet faller på en naturlig yta återvänder del av regnvattnet genom evapotranspiration och så vidare. Däremot i den urbana miljön som till viss del har en likande process fast med skillnaden att regn som fallit på en hårdgjord yta i regel blir förorenat genom att olika ytliggande, lyftburna ämnen och partiklar fastnar på vattendroppen. En av de större skillnaderna mellan det urbana och naturliga hyrdrologiska kretsloppet är reningsgraden. I det urbana hyrdrologiska kretsloppet är reningsprocessen i en mer koncentradform: reningsverken. Och i den naturliga hyrdrologiska kretsloppet är naturen i sig själv som renar vattnet. Genom att förmedla kunskap till människor och låta medborgare ha möjlighet att påverka hur införandet av Rain gardens sker kommer mycket av den misstänksamhet och skepsis som tidigare fanns att övergå i positiva åsikter. Mycket tack vare de flertalet mervärden som staden gagnar. De värden som uppstår kommer gynna den sociala aspekten i staden och bidra med ökade samhällsvinter. Bland annat genom att folkhälsan på sikt kan öka, rening av dagvattnet samt fördröjning som uppstår hjälper till att minska belastningen på reningsverken. På så sätt minskar risken för översvämningar i framtiden. / Tomorrow's communities are facing major challenges such as managing the increasing amount of intense and extreme rain water occasions that are expected to increase due to climate changes. The solution is to plan and think about the whole of how cities can best be designed, using functional open storm water solutions to give a good effect and runoff. It is also important to create an understanding that the open storm water systems contribute positive effects to society, such as by becoming a resource for the city's vegetation and green spaces, and hence achieve greener and more beautiful cities (Hållbar dag- och dränvattenhantering, 2011) and that increases people's health (Viklander & Blecken 2012).The urban cycle, writes Butler & Davies (2011), replaces part of the natural cycle and Lidström (2012) explains that the urban cycle borrows water from the natural and then creates an extra loop of water through the circle. Butler & Davies (2011) explains how important it is that there is an understanding of the consequences that occur when a part of the natural hydrologic cycle is replaced with an artificial part of the urban environment.Lidström (2012), writes that in nature, when it rains and the water falls on a natural surface returning part of the rain water through evapotranspiration, and so on. In contrast, in the urban environment that to some extent has a similar process but with the difference that the rain falling on a hard surface usually becomes contaminated by various substances and particles stick to the water droplet. One of the major differences between the urban and natural hydrological cycle is the degree of purification. In the urban hydrological cycle is the purification process in a more concentrated form: treatment plants. And in the natural hydrological cycle is nature itself that purify the water.By imparting knowledge to the citizens and letting them have an opportunity to influence the implementation of Rain gardens in their communities. Thereby might much of the suspicion and skepticism that previously existed might change into constructive opinions towards the plant, much thanks to the added value that the city benefits from the plant. The values received from the plant will benefit the social aspect of the city and contribute to increasing social benefits, including increased public health, sustainable treatment of storm water that helps to reduce the load on treatment plants. This will reduces the risk of flooding in the future.
5

Typografins tolkning : En undersökning av typografins betydelse vid tolkning av text

Toreheim, Mimmi January 2011 (has links)
This paper addresses the question about what role typography plays in the interpretation of a text. From three different handbooks in typography arguments are gathered and categorized in to three categories: roman types, san serif and others. Interviews with people from the graphic design area are also a part of the paper and are accounted for in the discussion part of the paper. Areas of theory are a broad hermeneutic view based on Hans-Georg Gadamers thoughts, which have sub categories such as: Michel Foucault’s theory about discourses, John Swales genre theory and Anders Björkvall’s thoughts on typography and multi-modal texts. The result of the paper is that all typography, even the one often called the invisible typography, is interpreted by the reader who gathers it’s pre-knowledge from genre, history, culture and discourses. This means that typography plays an important role in the interpretation of a text. Key words: typography, interpretation, hermeneutic, Hans- Georg Gadamer, discourse, Michel Foucault, genre analysis, John Swales, Multi- modal, Anders Björkvall, semiotic. / Denna uppsats behandlar frågan om vilken roll typografin spelar för tolkningen av en text. Från tre olika handböcker i typografi samlas argument in och kategoriseras i tre kategorier: antikva, sanserif och övriga. Även intervjuer med personer yrkesverksamma i det grafiska fältet genomförs och redovisas sedan i diskussionen. Teoretisk utgångspunkt hämtas från Hans-Georg Gadamers tankar om hermeneutik, på vilken följande underkategorier av teorier följer: Michel Foucaults diskursteori, John Swales genreteori och Anders Björkvalls tankar om typografi och multimodala texter. Resultatet pekar mot att all typografi, även den som ofta kallas för den osynliga typografin, tolkas av mottagaren som i sin tur samlat sina förkunskaper från genre, historia, kultur och diskurs. Detta innebär att typografi spelar en viktig roll i tolkningen av en text. Nyckelord: typografi, tolkning, hermeneutik, Hans-Georg Gadamer, diskurs, Michel Foucault, genreanalys, Johan Swales, multimodalitet, Anders Björkvall, semiotik.
6

Análise de domínio para avaliação de tesauros : uma experiência com a cadeia produtiva do calçado no Brasil /

Lorenzon, Emilena Josimari. January 2011 (has links)
Orientador: João Batista Ernesto de Moraes / Banca: José Augusto Chaves Guimarães / Banca: Mariângela Spotti Lopes Fujita / Banca: Luciana de Souza Gracioso / Banca: Brígida Maria Nogueira Cervantes / Resumo: Buscou-se resolver o problema da cadeia produtiva do calçado no Brasil, enquanto domínios especializados, de não possuir uma linguagem de indexação específica e exaustiva para a organização e representação das suas informações, mostrando que o único instrumento de vocabulário controlado existente nesse setor produtivo, denominado Microtesauro do Couro e Calçado, produzido pelo Serviço Nacional de Aprendizagem Industrial - SENAI, não é suficiente para organizar, atualmente, todos os conteúdos abordados dentro do domínio em questão. Para isso, utilizamos os pressupostos teóricos de John Swales sobre análise de domínio e comunidades discursivas, aplicando os seguintes procedimentos metodológicos: 1) delimitação do domínio (definição de onde começa e onde termina), utilizando os princípios metodológicos propostos por Tennis (2003) e as 11 abordagens de Hjorland (2001; 2002) para sua análise, delimitando-o através das suas áreas de modulação e seu grau de especialização; 2) identificação dos usuários da terminologia, ou seja, as comunidades discursivas desse domínio; 3) seleção de uma categoria bem específica e duas facetas para a identificação de termos; 4) definição e seleção do corpus para o estudo; 5) utilização de uma tecnologia para a extração semiautomática de termos no corpus, eliminando aqueles que não são específicos na área, com auxilio de um especialista do setor; e finalmente 6) comparação de alguns termos, selecionados através de seu grau de especificidade no domínio, com os termos descritos no Microtesauro analisado. Pretendeu-se com a pesquisa verificar a possibilidade de avaliar tesauros a partir da análise de domínio conforme as perspectivas de Swales. Essa cadeia produtiva foi escolhida devido ao envolvimento profissional da pesquisadora no processo de organização de suas informações e conhecimentos / Abstract: We tried to solve the problem of footwear production chain in Brazil, while specialized fields, it does not have an indexing language to specifically include the organization and representation of your information, showing that the only existing tool for controlled vocabulary in the productive sector, microthesaurus called the Leather and Footwear, produced by the National Service of Industrial Learning - SENAI is not enough to organize now, all the content covered within the area in question. We utilize the theoretical assumptions of John Swales on domain analysis, and discursive communities, applying the following methodology: 1) delineation of the domain (definition of where it begins and ends), using the methodological principles proposed by Tennis (2003) and approaches the 11 Hjørland (2001, 2002) for analysis, limiting it through their areas of modulation and the degree of specialization, 2) identification of users of the terminology, ie the discursive communities that domain, 3) selection a very specific category and two facets to the identification of terms, 4) definition and selection of the corpus for the study, 5) use of a technology for semi-automatic extraction of terms in the corpus, eliminating those that are not specific in the area, with the aid of an industry expert, and finally 6) comparison of some terms, selected by their degree of specificity in the field, with the terms described in microthesaurus analyzed. It was intended to research to verify the possibility of evaluating thesauri from the domain analysis as the prospects of Swales. This chain was chosen because the researcher's professional involvement in the process of organizing their information and knowledge / Doutor
7

Explicit Writing Instruction : A Genre-based Analysis for Developing Scaffolding for Diploma Project Writing / Explicit Skrivundervisning : En genre-baserad analys för utveckling av scaffolding för skrivning i gymnasiearbetet

Olsson, Daniel, Vahlén, Alice January 2021 (has links)
With an increase of Swedish upper-secondary students’ motivation to enrol in university studies (Statistics Sweden, 2020a, 2020b), teachers must ensure that learners are adequately equipped to meet the expectations of higher education. However, in a national report, Skolinspektionen (2015) states many students fail to meet the standards of academic writing when undertaking the diploma project. To ensure learners become eligible for graduation and prepared for university studies, teachers need to be able to instruct pupils and to design effective scaffolding for diploma project writing. Therefore, the following study investigates the applicability of a genre-based model as atool for analysing relevant student-produced researchers papers written by EFL students, and to what extent the same genre-pedagogical analytical framework may be suitable as a tool for helping teachers to develop scaffolding for diploma projects written in English (and other languages). To address questions, a direct content analysis employing John Swales’ CARS model (1990) of rhetorical moves as a conceptual framework as a point of departure was performed on six EFL teacher-student research papers from the English and Education program for upper-secondary teachers of English at Malmö university. The analysis demonstrated that while several moves were executed in the pre-service teachers’ papers, some moves were absent. Additionally, several unconventional moves were identified, which can be attributed to the specific genres of the independent and degree projects. Hence, Swales’ CARS model is applicable for analysing student-produced research papers following the IMRAD structure. However, further investigation is encouraged into the genre-specific features of the student papers and the subsequent adaptation of the model to reflect the student-paper genre more closely. Consequently, to employ the model for designing scaffolding for diploma projects, teachers need to develop a critical understanding of moves employed within and across disciplines and teach them explicitly as part of pupils’ training and assessment in the writing process. Finally, further research targeting how teachers design and implement explicit genre-based writing scaffolding is called for.

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