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680 Uppsatser om Concrete opening - Sida 37 av 46

Förändrad markanvändning vid biodrivmedelsproduktion : en empirisk undersökning av svenskproducerade biodrivmedels påverkan på åkermarkens användning

Increasing the use of biofuels is an important part of achieving the EU?s target of 10 percent renewable energy in the transport sector. However, the competition between biofuels and food production is an ongoing concern. Also, several studies have indicated a significantly higher climate impact than was earlier estimated, due to emissions from land use. In Sweden, both the use and production of biofuels from crops have increased substantially during the last decade. The purpose of this project is first to present an overview of the Swedish land use in all sectors.

Framtidens stadsträd för en fungerande grönstruktur

The effect of climate change places demands on how we build cities. Cities have to be built denser to meet the objectives of sustainability but as a result of this densification city green areas are at risk of exploitationand disappearing. The question this raises is whether there has to be an opposition between a dense and a green city?Urban trees are playing a very important role in cities. They stand as the major part of the vegetation in citieswhich are otherwise dominated with concrete and stone.

Blivande folkskollärare : En social rekryteringsstudie av inskrivna män vid Karlstads folkskollärarseminarium

The main purpose of this essay is to interpret possible pattern in social extraction, among future male elementary school teachers, at Karlstads elementary school teachers seminar over time. The questions that intend to concrete the purpose, and describe the possible pattern of social backgrounds are following; Where do the future male elementary school teachers come from? How the social recrutiment is divided in professional categorys, and is there any distinction in the pattern of social recrutiment over time? Which social groups were represented at Karlstads elementary school teachers seminar between the year of 1860-1940, and how they were divided.At the categorization of occupation, class- and social belongings I´ve used Sten Carlssons theory of professional categories (the social transformation in Sweden after 1866) which also was used by Kerstin Skog-Östlin in her dissertation Pedagogical control and authortity.The changes in the pattern of social recruitment of male future elementary school teachers were following; the proportion of students with agricultural backgrounds has decreased between the year of 1860 and the turn of the century. Further there was a substantial reduction of students with agricultural backgrounds between the turn of the century and the year of 1940. Students with agricultural backgrounds had the lowest represented frequency according to the investigation.

Tilläggsisolering - lönsamt enligt en livscykelkostnadsmodell?

It is found that the properties of the record years of 1965-1975 is leaking a lot of energy andthese properties are facing a major energy efficiency. From the energy aspect, the facade isafflicted with poor thermal insulation which is a big problem. To address this problem addinginsulation is a good alternative to reduce overall energy consumption of a building. Thewindows on these buildings are also a problem from the energy point of view. Therefore,there are many reasons considered for energy upgrading.

Utvärdering av val av hållfastetsklass

SammanfattningBetong delas in i en rad olika hållfasthetsklasser som påverkar vilka egenskaper betongen har vad gäller hållfastheten, högre klass ger högre hållfasthet. Vid dimensionering av betongkonstruktioner kommer valet av hållfasthetsklass på betongen spela in på hur stor armeringsmängd som fordras. I hur stor grad armeringsmängden påverkas beror på vilken typ av element det gäller samt vilka typer av laster det påverkas av, men generellt gäller att en högre hållfasthetsklass på betongen genererar en lägre armeringsmängd. Tryckta konstruktioner, exempelvis väggar, pelare och valv, i betong klarar stora laster i sig utan kraftig armering. Denna studie har haft som mål att ta fram ett dokument som påvisar i vilka typer av element det lönar sig ekonomiskt att använda en högre hållfasthetsklass med en lägre armeringsmängd som påföljd, samt redovisa priset för respektive tvärsnitt. Den fiktiva byggnad som studerats är ett 15 våningars bostadshus uppfört i Östersund.

Avtalsgodkännande på Facebook : En kvalitativ studie kring varför den enskilda individen ignorerar det elektroniska avtalet

Around the year 2007, several news segments appeared in the Swedish media with focus on the social website Facebook. At the time, an increasing number of people in Sweden started to join the social platform and accepted the terms of contract to get access of the website, without further consideration of what they were agreeing to. This resulted in some private individuals felt violated when it turned out that major points of the contract entail that user?s private information, photos, videos and other publications that was shared on the website, were considered property of Facebook cooperation. Even though this incident made users more aware of what they should, and should not publish on the website, the episode did not result in users closing there accounts on Facebook.

Det energisnåla isoleringsmaterialet

This bachelor essay is divided into two parts, the first being a construction of a single-familyhouse and the second an in-depth study of five different isolation materials, analysed from anenergy perspective.The first part, the construction of the single-family house, has been created from knowledgeacquired during three years of studying at KTH Royal institute of Technology in Stockholm, inthe program Architecture and the Built Environment. The constructed house is a one-floorhouse of 137m2with façade plaster, situated in Borlänge, Sweden. The house has a wooden framewhich is built on a on sight cast concrete foundation, on the ground. The house?s roof is a gableroof, which has an angle of 24 degrees.

Mellanskog medlemmars och medarbetares inställning till SMS och e-post : en fallstudie

Communication, information and marketing are three of the main prerequisites for companies that want to increase their turnover. The everyday work for a Forest Manager within the forest owners? association Mellanskog consists to a large part of interpersonal communication, either by close vicinity contact or by phone calls. Interpersonal communication is time consuming and resource intensive. If the flow of information, communication and marketing does not function well then there is a lack of a base for development.

AB Volvo Pentas emballagesystem - processen och förpackningslogistisk betydelse

Title AB Volvo Pentas packaging system ?process and packaging logisticsAuthor Peter Powell, Lund's Technical CollegeSupervisors Annika Olsson, Lund's Technical CollegeJan Svensson, AB Volvo PentaProblem - Packaging requirements ? Which requirements are there, how do they affect each other and how are they fulfilled?- Packaging process ? what is the line of action when developing new packaging and making adjustments in existing ones? Who has the responsibility to do what?- Packaging logistics ? How is the packaging system adapted to transport efficiency and handling?Objective To create an overall picture over how the packaging system affects and is affected by different functions and players within and beyond the company boundaries, to give a clear picture of how changes in the packaging system is made today and how it could work and finally to give suggestions for cost savings affected by the packaging system.Method The methods used for this thesis has mainly consisted of action research and at some extent case studies. As a previous employee at the department of logistics at Volvo Penta I?ve taken part of the environment, information and prerequisites that this thesis discusses on a daily basis. Case studies have been used for the collection and analysis of data concerning packaging logistics as I?ve chosen to consider only specific markets and packaging.Conclusions This thesis has highlighted the demands that are placed upon engine packaging throughout all concerned units and how these demands affect each other, positively and negatively.

Bullertunneln : En utredning kring en ny bullerlösning vid trafikleder

The purpose of this Master Thesis has been to investigate the possibilities for a new type of noise reduction solution that could decrease the negative effects resulting from larger traffic roads. The idea has been to construct a noise barrier with a roof ? like a tunnel placed on a road. The choice of material has been focused on transparent materials in order to lower visual intrusion and barrier effects. This project idea is called the Noise tunnel.After having investigated the current offer of noise solutions, it has been concluded that these solutions rarely provide a sufficient level of noise reduction ? at least not when government regulations of acceptable noise levels are applied.

Kvalitetssäkring av material och tjänster inom byggentreprenadbranschen

Quality is the key to a well executed product or service. The construction industry hasn?t highlighted the quality in recent times which have contributed to the construction industry receiving much criticism in the field. The public sees it as an offhanded industry where errors and delays are common.The reason for this is considered to be primarily the lack of time, constant pressure to reduce costs and skills and the ability to communicate between the parties about what the correct quality really means. The industry has begun to realize that it must start setting clearer standards and that there are great opportunities for improvement.This report will give Peab an opportunity to develop their quality work.

Turism i filmens värld : En fallstudie rörande tv-serien "Morden i Midsomers" potential som turismprodukt

This essay notice film and TV-series as a resource, which can be utililized by the tourism industry. To be more concrete, the aim of this essay is to examine if and how the Television series ?Midsomer murders? can be utilized as a tourism product. To fulfill the purpose of this essay, two different methods have been used: the study off literature and a content analyses, the later in form of a picture & film analyses. The results of this study showed that ?Midsomer murders? have qualifications enough to be a successful tourism product.

Potentiella armeringsfel inom byggproduktionen : En generell studie

Reinforcement is of great importance to fulfill the dimensioned strength of a concrete construction. This requires that the work needs to be carried out with adequate results that neither endangers the workers or the safety of the construction. Progressive development of the planning phase, construction documents, and construction methods is in constant need since the technology constantly evolves.In order for contractors to be able to get acceptances from their quotations requires that they have to increase their working pace in order to be able to leave a quotation with a lower price than the competition.Due to the increasing pace the different parts involved in the construction process is subjected to time pressure. The design stage, construction documents, work preparation and the execution are all affected when everything has to be finished quickly. To avoid problems, it is required that all parts are able to deliver good quality solutions and results under the influences of time pressure, which is not always easy.

Tilla?ggsisolering och fuktproblem i grundkonstruktionen platta pa? mark : En fallstudie i flerbostadshus inom stadsdelen Sa?tra i Ga?vle

Between 1965 and 1974, the Swedish Parliament decided to build one million dwellings, called Million Program. The million program buildings were erected with new, untried design solutions, in a short range of time, and at low cost. The residential buildings from that time are now greatly in need of renovation. The municipal housing company, Gavlega?rdarna, renovates and improves the energy efficiency at some of it?s apartment buildings in the district Sa?tra, Ga?vle.

Utformning av riktlinjer för trafiksäkerhet i mindre stadscentrum : fallstudier i Bollnäs och Sandviken

Several cities have implemented various projects to improve traffic safety in city centers.During 1970s and 1980s the city centers changed as the suburbs grew and large shopping centers were located outside the center. At the same time, several projects were initiated with construction of pedestrian streets and restriction of traffic in the center. In year 1994,shared-used areas were introduced in Sweden and these areas are often used in center environments.In Sweden, municipalities are responsible for integrating security in public places and in comprehensive plans and detailed development plans. The National Board of Housing,Building and Planning is the authority for administrating planning issues and develop general guidance about planning. Traffic is one of their key issues, although today there are no concrete guidelines from the National Board of Housing, Building and Planningfor the design of traffic safety in city centers.Traffic safety in city centers affects many people because the city center is a public place.It is therefore important that there are current guidelines available that are helpful for changes and improvements in traffic safety in the city center.The purpose of this report is to formulate guidelines for planning city centers from a traffic safety perspective.

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