• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 85
  • 61
  • Tagged with
  • 146
  • 146
  • 146
  • 144
  • 144
  • 28
  • 25
  • 25
  • 21
  • 14
  • 10
  • 10
  • 10
  • 9
  • 9
  • 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.
11

DIGITAL VISUALISERINGSTEKNIK : möjligheter, för- och nackdelar

Haag, Joacim January 2009 (has links)
<p>Ever since the development of the pc and their software, in the early 80´s,architects way of work have changed a lot. Nowadays most of the architectspresent all their works digitally and not with hand drawn material, as they didbefore the pc boom.Digital visualisation technique pushes the limits, when it is about presentingarchitecture projects virtual reality.This report studies how digital visualization technique is used among thearchitects today.Together with architects from ABAKO architect firm in Gothenburg, Sweden,interviews has been made to give answers about what they think about digitalvisualization technique. What are the opportunities, advantages- anddisadvantage with this digital technique?The answers from the architects, together with work that has been done withdigital visualization technique in a project called Project Sofiedal, shows thatthis technique has big opportunities when it comes to create nice looking VRpresentations. The result in this report also shows that this digital technique ismore time demanding compared to hand drawn presentations.The investigation shows that digital visualization technique is a goodcompliment when it is about showing the citizens how future projects willaffect the surrounding. Small projects, not for public interest, the digitalvisualization technique could be questioned as a method of work, but notexluded.</p> / Digital visualiseringsteknik, modellering, rendering, visualisering.
12

Environmental systems analysis tools for decision-making : LCA and Swedish waste management as an example

Moberg, Åsa January 2006 (has links)
<p>Decisions are made based on information of different kinds. Several tools have been developed to facilitate the inclusion of environmental aspects in decision-making on different levels. Which tool to use in a specific decision-making situation depends on the decision context. This thesis discusses the choice between different environmental systems analysis (ESA) tools and suggests that key factors influencing the choice of ESA tool are object of study, impacts considered and information type regarding sitespecificity and according to the DPSIR-framework.</p><p>Waste management in Sweden is used as an example to illustrate decision-making situations, but discussions concerning choice of tools are also thought to be of general concern. It is suggested that there is a need for a number of ESA tools in waste management decision-making. Procedural tools like Environmental Impact Assessment (EIA) and Strategic Environmental Assessment (SEA) should be used e.g. by companies applying for development of waste management facilities and by public authorities preparing plans and programmes. Within these procedural tools analytical tools providing relevant information could be used, e.g. Risk Assessment (RA), Life Cycle Assessment (LCA) or Substance Flow Analysis (SFA). Analytical tools may also be used separately. If the decision-making situation concerns a choice between different waste management options, such as recycling, incineration and landfilling, environmental aspects could be assessed using LCA or Material Input Per unit Service (MIPS). To study certain substances within the waste system, RA or SFA could be used.</p><p>An LCA of different strategies for treatment of municipal solid waste was made. A conclusion from this study is that the waste hierarchy is valid as a rule of thumb. Suggestions resulting from this study are that decisions promoting recycling of paper and plastics should be pursued, preferably in combination with decisions promoting the use of plastics replacing plastics made from virgin sources. The study further identifies a need for limiting transportation by private car for options requiring source separation of waste. When recycling is not an alternative, incineration is in general preferable to landfilling. Key issues that may affect the ranking of the waste treatment options include alternative energy sources, the material the recycled material replaces and the time perspective chosen.</p><p>It is suggested that LCA may be a useful tool in waste management, both on its own and as a part of an SEA. Results from LCAs can provide advice on ranking of alternatives. More importantly, key assumptions and value choices that may influence the rankings can be highlighted and thus made clear to the decision-makers. In general, LCA results are not site-specific and provide information in the form of potential environmental impacts, and thus could be combined with other tools if other type of information is needed.</p> / QC 20100610
13

Formal and Informal Practices for Affordable Urban housing : Case study: Dar es Salaam, Tanzania

Mushumbusi, Medard Zephyrin January 2011 (has links)
This thesis attempts to ascertain the magnitude of the urban housingproblem in Tanzania and endeavours to evaluate the strategies that thegovernment has been employing to address this problem. Informal andformal practices in urban housing are compared. The role of networksand power relations are explored and discussed in relation to how theymay facilitate the provision of urban housing. By looking at urbanhousing from a governance perspective, the thesis explores thepotentials for delivery of urban housing A case study is carried out, looking at the housingpractices in urban areas from the perspective of actors and theirinstitutional domains of action. The aim is to ascertain the extent towhich the government, through its policies and through engagement ofother actors, could facilitate the supply of urban housing. The roles ofdifferent actors in the delivery and regulation of urban housing areinvestigated in the process of institutionalizing housing production. The study comprises eight chapters. The first twochapters present an introduction and the conceptual and theoreticalunderpinnings on which the research is based. Chapter three discusseshousing strategies in Tanzania and attempts to evaluate the regulatoryframework within which urban housing is provided. Chapter fourpresents the research methodology. Chapter five discusses findingsfrom the studied documents and findings from interviews with keypersons in the government and in the construction industry. Chaptersix presents findings from the case study areas. Chapter sevendiscusses findings from case study areas and uses findings fromchapter five as corroborating evidence. Chapter eight givesrecommendations including areas for further research. The main outcome of the study is that urban housing isstill far from being satisfactory despite different strategies and landand governance reforms by the government of Tanzania. The formalsystem is weak and the roles of key public actors are still bureaucratic,blurred and sometimes conflicting. As a result, there is littleparticipation of private actors and the civil society in the production ofurban housing. The thesis has found out that informal practices forurban housing tend to complement the weakening capacity of theformal system. However, the thesis argues that although the informalsystem of governance for urban housing is consolidating it proceedswithout being properly guided. Based on these findings, somerecommendations are given for policy intervention, and some areas forfurther/ future research are identified. / QC 20110330
14

Tillgängligheten i de offentliga byggnaderna med fokus på museer : Det nya konst- och länsmuseet som ett exempel på bra tillgänglighetslösningar

Skaba, Patrycja January 2010 (has links)
<p>Den 4 september 2010 inviger Västerås konstmuseum tillsammans med Västmanlands läns museum sina första utställningar i lokalerna som är anpassade för museiverksamhet och tillgängliga för besökare. Det är av största vikt att följa byggnadslagsstiftningen när man planerar byggnader och senare bygger dem. Man ska skapa sådana byggnader där människor med nedsatt rörelse- och orienteringsförmåga har möjlighet att utnyttja lokalerna.  En ombyggnation av ASEAs gamla industribyggnad har resulterats i att man har åstadkommit en tillgänglig och modern museilokal i kvarteret Mimer på Karlsgatan 2 i Västerås.</p><p> </p><p>Syftet med detta examensarbete har varit att visa vilka tillgänglighetslösningar som har använts i den nya museibyggnaden på Karlsgatan i Västerås. En litteraturstudie har utförts för att gå igenom de krav som ställs på museer. Den informationen har hämtats från BBR (Boverkets byggregler) och även andra böcker som handlar om tillgängligheten i den fysiska miljön. Dessutom har egna observationer och studier över arkitektritningar gjorts för att uppnå en större förståelse över de lösningar som använts i den nya byggnaden. Fokus har lagts på den fysiska tillgängligheten i de delar av byggnaden som kommer att användas av besökande samt på miljön utanför själva museet.</p><p> </p><p>Rapportens resultat beskriver gångvägar i den yttre miljön, parkerings- och angöringsplatser, entréer, dörrar, korridorer och toaletter. Resultatet omfattar även hiss, trappa, ramp, reception, kafé, butik och kapprum. De båda museernas utställningshallar och pedagogiska lokaler med intilliggande hörsal ingår även i resultatet.</p><p> </p><p>En av slutsatser som har kunnat dras av resultatet är att ”det tillgängliga tänkandet” har varit en av de högsta prioriteterna under hela planerings- och byggprocessen. Den nya byggnaden kommer att bidra till att en mer omfattande verksamhet i museet blir möjlig. Den blir även mer tillgänglig och användbar för allmänheten.</p>
15

Drivmedelsstationer i Västerås

Nyman, Martin January 2008 (has links)
<p><p>Abstract</p><p>This report is made in cooperation with the municipality of Vasteras and technical committee</p><p>staff. The report addresses several topics that affect fuel stations in Vasteras. The report</p><p>contains two parts, first is a inventory that review all stations in the area to be addressed. The</p><p>inventory is made with consideration to various things that geographic situation, what</p><p>companies are represented and what level of service stations have. And the second part of the</p><p>report, is done with the analysis of how it looks in daily situations review. Then the new</p><p>positions around Vasteras is chosen, which would be attractive to the new location of stations.</p><p>The new positions were evaluated in various ways with a variety of policy issues that had</p><p>been set, it is important to have a holistic view of how a new establishment affect the</p><p>surrounding environment.</p><p>The hope of this report is to create a document that may be useful to my commission in the</p><p>future. It is intended to be a comprehensive document that addresses the fuel situation at large.</p><p>It is not meant it to go into the detail level, but it is an overview.</p><p>One conclusion that emerged from this work is that Vasteras have good accessibility to the</p><p>fuel stations. Most fuels are available in one or more stations and all the major petrol</p><p>companies are represented in the city. There are also a number of new positions that could</p><p>serve as a good place for new locations.</p></p>
16

Energiutredning med åtgärdsförslag : Radiohusets kontorsbyggnad

Jergelin, Johan January 2008 (has links)
<p><p> </p><p> </p></p><p><p><p>Examensarbete genomfördes i samråd med Helenius konsultbyrå. Syftet med arbetet var att utreda och undersöka möjligheterna att förbättra driftekonomi och inneklimat på Radiohusets kontorsbyggnad som är beläget på Gärdet i de centrala delarna av Stockholm. Bakgrunden till arbetet var att det fanns relativt stora problem med inneklimatet i denna del av byggnaden under både sommar och vinter. Vintertid upplevde en stor del av personalen som vistades i byggnaden dragproblem och sommartid är inneklimatet alldeles för varmt för att personalen kan jobba effektivt. En annan del av problemet var att stora mängder energi användes för temperera byggnaden vintertid. Den stora energianvändningen beror till stor del av en otät och dåligt isolerad fasad.</p><p>Huvuddelen av arbete gick ut på att kartlägga energianvändningen och hitta besparingsförslag för energianvändningen samt att ge förslag på klimatförbättrande åtgärder. Energikartläggningen genomfördes dels genom att bygga upp byggnaden i energisimuleringsprogrammet</p><p><em>IDA- Klimat och Energi 3.0 </em>och därefter genomföra parameterstudier på möjliga</p></p></p>
17

Installationsentreprenader : Prisutveckling i Västerås och en geografisk prisjämförelse

Lööf, David, Simsek, Saffet January 2009 (has links)
<p>During the last years of construction boom the prices on contractors for installations have escalated. According to Statistiska Centralbyråns, E84, the costs for installation contractors have increased with 48 percent on electrics and 18, 6 percent on VS from January 2005 to January 2008. This rapport aim on clarifying certain questions about the increasing prices by a closer analyze on the development in Västerås and how different contractors sets their prices. This rapport is based on interviews with several actors in the building trade. When it comes to material, there are many intermediaries from manufacturers to final customer. It can be as many as six intermediaries consisting of manufacture, general agent, agent, wholesale dealer, installation contractor and building contractor. These intermediaries create quite big additional costs for the final customer. In this industry the use of big discount systems are very common which makes it very difficult for the final customer to know the real cost for the products. By having these big discounts which creates gaps in the prices, the profit on the material can be large without anyone noticing.</p><p>Supply and demand determine prices in many industries and so it also seems to be in the building industry. There has been high pressure on the market during the last years and a comparison in the rapport between new produced residential blocks in Västerås and nearby cities shows on a big difference depending on location. The existence of these diversities may have several natural causes as standards, technical solutions, number of apartments, etc. but it can also depend on the market situation in different cities.</p><p>To decrease the total cost for a residential project there has to be more trust between all who are involved in the project. Partnering can be a great solution on this problem where everyone involved works with open book and towards the same goal, to decrease the total cost instead of just thinking on their own profit.</p>
18

Att förebygga och undvika fuktskador i byggnader

Robertsson, Hanna, El-Saaidy, Jalina January 2010 (has links)
<p>Efforts to achieve a moisture proof construction process have proved to be considerably complicated, despite the knowledge and awareness that now exists within the moisture field. Materials, documents, templates and checklists are designed to be accessed but are not used anyway. This may be because such effort has not been prioritized and properly requirements have not existed from the commissioner of a building.</p><p>This report illustrates how the commissioner of a building project can achieve a moisture proof building process by increasing knowledge, moisture proof planning, and implementation of security moisture routines. Proposals are given on how the commissioner of a building project can work to consistently bring a moisture proof building process in all stages. The difficulty with regular moisture proof efforts, the authors believe is mainly due to the following points:</p><p>      Many different design solutions.</p><p>      Lack of experience feedback.</p><p>      Lack of communication.</p><p>      Financial incentives.</p><p>      Attitudes.</p><p>The interviews in the report have conducted with the help of a qualitative analysis, while the survey has been done using a quantitative analytical method. The report's theoretical frame of reference is characterized by literature studies together with experts in the field and the reports they have developed at their research.</p><p>A book has also been written where some of the most commonly moisture damages have been described. The book is written in a simple and pedagogical approach because it is primarily aimed to increase knowledge among construction workers and others with an interest in the moisture subject.</p><p>By carry out continually efforts in right direction, we believe that it is possible to build moisture proof buildings.</p>
19

Utformning och visualisering av ett kvarter i tingvallastaden : brf. Panorama

Karlsson, Joel, Blomgren, Emma January 2008 (has links)
<p>Detta examensarbete handlar om utformning av ett kvarter som är gjort på uppdrag av Peab Sverige AB. Kvarteret Negern ligger i Tingvallastaden i centrala Karlstad och idag finns på platsen en gammal tryckeribyggnad och parkeringsgarage. Området gruppen utformat är 2600 m2 stort och skall inrymma ett 60-tal lägenheter. Målgruppen för arbetet är hushåll med två personer, därför kom det att bli tvåor och treor i alla plan utom i det översta där det kommer att vara två fyror.</p><p>Arbetet resulterade i två punkthus (se figur 1) om åtta respektive nio våningar i varje och ovanpå dessa en stor takterrass. Fasaderna består av ljus puts och bottenplan av granitplattor, för att ge tyngd åt byggnaderna och för att motverka klotter.</p><p>På innergården finns det bland annat fontän, grill och lekplatser. Byggnaderna omringas av staket och buskar.</p><p>Parkeringsfrågan löstes genom att använda det befintliga garaget och schakta ur under Negern 6 och 10 för att göra parkeringsgarage och förrådsutrymme i ett plan. Tillgång till hiss finns i båda byggnaderna och den går från garaget upp till terrassen på taket.</p><p>I det ena huset kommer det att finnas tvättstuga, samlingslokal, gym samt två stycken övernattningslägenheter som de boende kommer att ha tillgång till.</p><p>Gruppen ville skapa en känsla av trygghet och välbefinnande inom området. Detta gjordes genom att belysa gångar samt undvika höga buskar. Parkeringsgaraget skall inte ha några mörka vrår utan belysas så människorna kan känna sig trygga.</p><p>Arbetet är utfört med hjälp av Google SketchUp 6 som är ett program för 3D-ritning. Fördelen med detta program var att gruppen kunde konstruera de befintliga byggnaderna så att de blev så autentiska som möjligt. Därmed blev kvarteret mer verklighetstroget och det blir enklare att orientera sig samt se hur byggnationen passar in i kvarteret. Visualiseringen av kvarteret presenteras i form av 3D-bilder.</p>
20

Analysing Sustainable Urban Transport and Land-Use : Modelling tools and appraisal frameworks

Jonsson, R. Daniel January 2008 (has links)
Sustainable development and climate change is high on the agenda for most cities around the world today. Urban transport is at the heart of these changes. Increasingly, it is recognised that not only is the emission of pollutants and greenhouse gases a problem, but also the detrimental effects of congestion and social exclusion. In order to address these issues, it will be necessary for cities to make strategic long term decisions regarding the future infrastructure and land use, not only in terms of what will be built, but also on measures that affect how these systems are used.This thesis is focused on the decision support tools that we need in order to make well informed decisions. Models that predict the performance of future scenarios, and appraisal frameworks that help evaluate whether these outcomes are desirable or not. The first two papers experiment with different ways of bringing some aspects of sustainability into the appraisal frameworks used to analyse long term strategies. Paper I addresses intergenerational fairness, and Paper II focuses on the emission of greenhouse gases. Paper III develops a model, Scapes, that can help us to better understand the daily travel behaviour, through an activity based approach. By explicitly modelling space-time constraints, and travel time uncertainty in a microeconomic framework, we can get a better understanding of how people can respond to, and value, changes in the transport system. Papers IV and V describe a new integrated land use and transport model, LandScapes.The policy implications from the studies in Papers I, II, and V are that it will be very difficult for Stockholm to reduce its emissions of CO2. Particularly, predicted economic and population growth will inevitably lead to more transport. It is likely that a range of different policies will be necessary to solve that problem. At the same time, we must not forget that decreasing CO2 emissions, although important, is not the only objective Stockholm has. To cope with the increasing travel demand from a growing population, it may well be necessary to build new infrastructure as well. This thesis does not prescribe any such relative valuation between conflicting objectives. It only helps bring them to the fore. / QC 20100817

Page generated in 0.1151 seconds