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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

The Social Life of the Student - A design Project / Studentens sociala liv - Ett designprojekt

Jensen, Fredrik January 2009 (has links)
<p>This report describes from start to finish how a new design and extension of the Gengras student union center at the University of Hartford was done. The report will be using a project that was made by me and explains how the whole project was planned by contacting S/L/A/M Collaborative Inc. all the way until the final outcome was presented for a final jury. It explains the whole chain process one should use when designing a building such as different analysis, precedent studies, concept development and how to approach the design project. New technologies, the feature of access and flexibility are the main influence words in the design that is being used as an example. These words can be found and felt throughout the whole building both in the façade drawings and in the plan solutions. The result was a building that is more organic and flexible in its forms and spaces than current architecture is today. A sort of architecture that comes more and more in which will shape the society in the future. My building also keeps a sense of the old façade to create a transition between the new and the old. The old and the new cooperation prove that the innovative design does not destroy the old building; it only enhances it and prepares it for the future.</p>
22

Estimations of Delay Costs caused by Roadworks

Wennström, Jonas January 2010 (has links)
When roadworks are performed, one of the impacts is delays in the traffic. Partly because of reduced speed limits past the work zones but mainly because of the facility's limited quality of service. This could result in significant delays for the road users with lost work and spare time as a consequence. The lost time in congestions could have been used more efficiently. It is therefore of interest to estimate these delays for different types of roadworks to calculate its macro economical impact. The estimations may be a factor in different types of planning, for example in roadwork planning, in work zone scheduling or in life cycle assessments. The estimations can be conducted using different methods, such as analytical, queuing theory or macrosimulation. However, to include the details of specific work zones an analysis method of higher detail is required. First to include varying geometric details, secondly due to the higher level of detail in the representation of the traffic. Therefore may microsimulation be a suitable analysis method. The purpose of this master thesis was to investigate microsimulations suitability for work zone analysis, by using the software AIMSUN. AIMSUN were different work zone types modeled, first of highways. Later was a 2-lane road modeled for which the traffic control was a fixed signal, then controlled by a simpler extension developed in C++ that simulated a flagger control. Using a developed helper program, the work zone models could be simulated for a large set of daily flow levels and heavy vehicle ratios. Together with corresponding results for normal conditions, it was possible to calculate the delays. The results were relationships between the total delays, for various heavy vehicle ratios. A concern with the results was deviations of the delays for different daily flows and heavy vehicle ratios. Even if the deviations will not have any greater impact on the total cost, they may be unwanted in decision models. Processing of the result may therefore be necessary. This master thesis has showed that microsimulation may be a suitable method to analyze work zone impacts. Using the high level of detail, work zones special character can be captured. Possible future work is to improve the reliability of results by performing validations of results with real work zone data to compare speeds, headways and queue lengths. Additional work may include to consider the diversion delays. / När vägarbeten utförs uppkommer fördröjningar i trafiken. Delvis på grund av reducerade hastigheter förbi arbetsområdet men i huvudsak på grund av minskad framkomlighet. Det kan resultera i betydande fördröjningar för trafikanterna med förlorad arbets- och fritid som följd.  Den förlorade tiden i köer kunde då ha använts effektivare. Det är då av intresse att kunna uppskatta fördröjningarna vid olika typer av vägarbeten för att beräkna dess samhällsekonomiska påverkan. Uppskattningarna kan då vara en faktor vid beslut inom olika typer av planering, till exempel vid vägarbetsplanering, schemaläggning eller livscykelanalyser. För att göra dessa uppskattningar kan olika metoder användas, till exempel analytiskt, med köteori eller makrosimulering. Men för att kunna inkludera detaljerna vid olika vägarbeten krävs en analysmetod med högre detaljnivå. Dels för att få med geometriska detaljer, dels detaljnivån i representation av trafiken. Då kan mikrosimulering vara en lämplig metod. Syftet med det här examensarbetat var att undersöka mikrosimulerings användbarhet vid vägarbetesanalyser, det genom att använda programvaran AIMSUN. I AIMSUN modellerades olika typer av vägarbeten, först för motorvägar. Sedan modellerades en 2-fältsväg där trafikkontrollen dels sköttes av en skyttelsignal, sedan utvecklades ett enklare tillägg i C++ som simulerade en flaggvakt som istället skötte trafikkontrollen. Med hjälp av ett utvecklat program kunde modellerna simuleras för en stor mängd olika dygnsflöden och andel tung trafik. Tillsammans med motsvarande grundscenario kunde fördröjningarna beräknas. Resultaten blev samband mellan totala fördröjningen under dagen beroende på dygnsflödet, det för olika andelar tung trafik. Ett bekymmer med resultaten var variationer i fördröjningarna mellan olika dygnsflödesnivåer och andelar tung trafik. Även om variationerna inte ger så stort utslag på totala kostnaden, så kan variationerna vara icke önskvärda i till exempel beslutsmodeller. En viss bearbetning av resultaten kan då vara nödvändig. Det här examensarbetet har visat att mikrosimulering kan vara en lämplig metod för att analysera vägarbetens påverkan. Med dess höga detaljnivå har vägarbetenas olika karaktär kunnat återskapas. Möjligt framtida arbete är att öka pålitligheten i resultaten genom validation med trafikdata från verkliga vägarbeten med jämförelser mellan hastigheter, avstånd och kölängder. Ytterligare arbete kan vara att uppskatta fördröjningar av att fordon väljer omvägar för att undvika vägarbetenas köer.
23

Rätt mental inställning kan förändra en hel bransch : En fallstudie i knowledge management på ett teknikkonsultföretag / The Right Mental AttitudeCan Change an Entire Industry

Ekeskär, Andreas January 2009 (has links)
<p><em>“Knowledge is like money: to be of value it must circulate, and in circulating it can increase in quantity and, hopefully, in value.” </em>– Louis L’Amour</p><p>Kunskap är ofta något som tas för givet och som självklart i många organisationer men faktum är att kunskap är en värdefull som resurs som rätt hanterad kan vara en väldig tillgång för en organisation. Kunskapshantering eller knowledge management benämns den organisationsteori som behandlar tillvaratagandet av kunskaper som resurser. Centrala begrepp inom knowledge management är erfarenhetsåterföring och kunskapsöverföring, att de lärdomar som organisationen får i uppdrag och projekt ska föras vidare till övriga personer inom organisationenså att de kan användas av andra i senare i projekt.</p><p>Samhällsbyggnadssektorn är en stor sektor i Sverige med uppemot en halv miljon anställda. Det är en bransch som ofta brukar beskrivas som konservativ och ovillig till förändringar. Inom branschen börjar dock uppfattningen i frågor om kunskap, kompetensutveckling och samarbeten sakta men säkert förändras. Ett företag som aktivt har arbetat med dessa frågor är teknikkonsultföretaget Grontmij AB som beskrivs som en utmanare då de har ambitionen att förändra hela branschen.</p><p>Grontmij ingår i Europas femte största teknikkonsultkoncern och arbetar framförallt inom husbyggnad, samhällsbyggnad och energi. Sedan företaget blev verksamt på den svenska marknaden har det radikalt förändrats från att vara ett lapptäcke av olika företag med rötter i offentlig verksamhet, till en av de största och mest framgångsrika teknikkonsulterna. Tonvikt i det arbetet har varit att förändra kulturen till en där samarbete och affärsmässighet är ledorden.</p><p>Syftet med det här examensarbetet har varit att undersöka hur teknikkonsultföretaget Grontmij arbetar med knowledge management och förhoppningsvis även ge andra teknikkonsulter värdefulla insikter om knowledge management.</p><p>Empirin om företaget och hur det arbetar med knowledge management har främst samlats in genom deltagande observationer, dokumentanalyser, samtal, intervjuer samt en enkätundersökning. Empirin har tillsammans med de teorier som omfattar knowledge management analyserats utifrån begreppen kultur, organisation, ledarskap och ICT för att ge förslag till hur Grontmij kan förbättra sitt arbete med knowledge management.</p><p>Slutsatsen är att Grontmij har kommit långt i sitt arbete med att hantera kunskaper men att en lång resa återstår. I fallstudiens slutskede genomgick företaget en organisationsförändring och aviserade en ny vision som sträcker sig ett halvt decennium fram i tiden, i den bör knowledge management ingå som en kärnprocess för att säkerställa att värdefulla kunskaper inte går förlorade.</p> / <p><em>“Knowledge is like money: to be of value it must circulate, and in circulating it can increase in quantity and, hopefully, in value.”</em> – Louis L’Amour</p><p>Knowledge is often something taken for granted in many organizations, but the fact is that knowledge is a valuable resource which if well managed can be a tremendous resource for an organization. Knowledge management is the organizational theory that studies the retrieval of knowledge resources. Key concepts are the feedback of experience and knowledge the organization may have learnt in assignments and projects, lessons which will be passed on to other people within the organization so that they can be used by others in later projects.</p><p>The construction industry is a major industry in Sweden with almost half a million employees. The industry, however, begins to believe in matters of knowledge, skills and collaborations and is slowly but surely changing. A company that has actively worked on these issues is the technical consultant Grontmij AB, whom is described as a challenger due to their ambition to change the entire industry.</p><p>Grontmij is Europe's fifth largest consulting engineering group, working mainly in building construction, environment and energy. Since it became operational in the Swedish market it has radically changed from being a patchwork of companies with roots in the public sector, to one of the largest and most successful technology consultants. Emphasis of the work has been to change the culture to one where collaboration and business acumen are key ingredients.</p><p>The purpose of this master thesis has been to explore how technology consultant Grontmij is working with knowledge management and, hopefully, also provide other technical consultants valuable insights on knowledge management.</p><p>Empirical relevance of the enterprise and how it works with knowledge management have been collected mainly through participant observation, document analysis, conversations, interviews and a survey. Empirical relevance, along with theories concerning knowledge management have been analyzed based on the concepts of culture, organization, leadership and ICT to provide suggestions for how Grontmij can improve its work on knowledge management.</p><p>In conclusion, Grontmij has come a long way in its efforts to manage knowledge but a long journey remains. In the case study's final phase, the company undertook an organizational change, and announced a new vision that stretches half a decade into the future, in it knowledge management should be included as a core process to ensure that valuable knowledge are not lost.</p>
24

Green Building : Ett företags energieffektiviseringsarbete i ett byggprojekt samt de krav som ställs för att få byggnaden Green Building klassad.

Andersson, Alexandra January 2009 (has links)
<p>The examination has been performed at Bjerking AB, which is an architectural and engineering company. Bjerking AB has the ambition to be a member of Green Building.</p><p>The Green Building program developed in year 2005 by The European Commission, the program is an environmental system with the aim to improving energy efficiency within the sectors of non-residential buildings. The minimum requirements to participate the program are following: in new-built buildings the calculated energy consumption must be 25 % lower than the requirements in the BBR (Building regulations) and in refurbishment the reduction must be 25 % lower than before the optimization.</p><p>The aim of this study has been to examine and review the company Bjerking AB's energy efficiency work in the project of building the school/kindergarten S:ta Maria Alsike, where the goal is to get this building Green Building classed. A description of requirements to become a member of the Green Building has also accomplished in the thesis.</p><p>The methods performed in this study are literature review, searches on the Internet, studies on the project database for facts/values, calculation of energy consumption and interviews of members of the Green Building. </p><p>The following issues have been dealt with in the report;</p><p>-          Did the building in the project manage the requirement to achieve an   energy consumption that is 25% lower than the requirements in BBR?</p><p>-          What technical measures/system was selected in the building?</p><p>-          What kind of cooperation was the project based on?</p><p>-          What is required for consultancy companies and real estate owners to become members of the Green Building?</p><p>The study of the project and calculation of estimated energy consumption in the building, give the result 47 kWh/m<sup>2</sup>, year. This is 60 % lower than the requirements of BBR. The Green Building requirement is that the building's energy consumption should be at least 25% less than the requirements in BBR. The building fulfills this requirement by a significant margin. It can therefore be concluded that the technical solutions carried out in the building are energy efficient. The project consisted of the cooperation shape “partnering ", which can be assumed to be a good form of cooperation in order to achieve an energy efficient building. The consultancy company Bjerking AB and the landlord Knivsta Pastorat has the potential to become members of Green Building, as Green Building Endorser respective Green Building Partner.</p><p><strong>Keywords:</strong> energy efficiency, requirements of BBR, technical systems, cooperation, consultancy companies, real estate owners, estimated energy consumption, partnering, Green Building Partner, Green Building Endorser.</p> / Utbildningsprogram: Civilingenjör i samhällsteknik, 180 p (270 hp).
25

Green Building : Ett företags energieffektiviseringsarbete i ett byggprojekt samt de krav som ställs för att få byggnaden Green Building klassad.

Andersson, Alexandra January 2009 (has links)
The examination has been performed at Bjerking AB, which is an architectural and engineering company. Bjerking AB has the ambition to be a member of Green Building. The Green Building program developed in year 2005 by The European Commission, the program is an environmental system with the aim to improving energy efficiency within the sectors of non-residential buildings. The minimum requirements to participate the program are following: in new-built buildings the calculated energy consumption must be 25 % lower than the requirements in the BBR (Building regulations) and in refurbishment the reduction must be 25 % lower than before the optimization. The aim of this study has been to examine and review the company Bjerking AB's energy efficiency work in the project of building the school/kindergarten S:ta Maria Alsike, where the goal is to get this building Green Building classed. A description of requirements to become a member of the Green Building has also accomplished in the thesis. The methods performed in this study are literature review, searches on the Internet, studies on the project database for facts/values, calculation of energy consumption and interviews of members of the Green Building.  The following issues have been dealt with in the report; -          Did the building in the project manage the requirement to achieve an   energy consumption that is 25% lower than the requirements in BBR? -          What technical measures/system was selected in the building? -          What kind of cooperation was the project based on? -          What is required for consultancy companies and real estate owners to become members of the Green Building? The study of the project and calculation of estimated energy consumption in the building, give the result 47 kWh/m2, year. This is 60 % lower than the requirements of BBR. The Green Building requirement is that the building's energy consumption should be at least 25% less than the requirements in BBR. The building fulfills this requirement by a significant margin. It can therefore be concluded that the technical solutions carried out in the building are energy efficient. The project consisted of the cooperation shape “partnering ", which can be assumed to be a good form of cooperation in order to achieve an energy efficient building. The consultancy company Bjerking AB and the landlord Knivsta Pastorat has the potential to become members of Green Building, as Green Building Endorser respective Green Building Partner. Keywords: energy efficiency, requirements of BBR, technical systems, cooperation, consultancy companies, real estate owners, estimated energy consumption, partnering, Green Building Partner, Green Building Endorser. / Utbildningsprogram: Civilingenjör i samhällsteknik, 180 p (270 hp).

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