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3853 Uppsatser om Construction technology - Sida 65 av 257

Förbättring av U-värde i träkonstruktion för fönster med Aerogel

When constructing a building, a number of aspects must be harmonized in order for it to fulfill requirements ? a building must fulfill requirements such a load-bearing, conservation of energy and a good indoor environment by means of, among other things, moisture proofing .Moisture problems in buildings can affect health negatively. As we are increasingly staying in indoors, demands on a good indoor environment are higher.This work starts with examining moisture problems in slab-on-ground solutions, and then links the various scenarios to moisture problems in a concrete slab of a real building. The building with moisture problems is located in Årby by in Borlänge and moisture damage was found in the slab at an apartment adjoining wall.By reviewing literature written within the field of moisture problem, making hand calculations and modeling in the program Comsol Multiphysics, judgments are made to find explanations as to why the rise of moisture occurred in the building in Årby by.Generally, the following guidelines may be used to reduce the risk of moisture problems in slab-on-ground constructions:Drying of construction moisture before laying the floor material.Using draining layer beneath the slab, to prevent capillary suction.Using insulation under the slab, partly for comfort and to establish the temperature difference between the ground and the concrete slab.Avoid direct contact between the wood and concrete, due to degradation and fouling smells that normally occurs.If necessary, use additional vapor barrier.In addition to the above, there are various methods for moisture-proof and moisture-monitoring by design or by the method ByggaF suited for the entire construction process various events..

Relationen mellan utformningen av digitala bibliotek och användarnas behov. En intervjustudie vid Göteborgs universitets digitala bibliotek.

The aim of this thesis is to define digital library, and to investigate a relation between the construction of a digital library and user needs. The main questions to be answered are: 1 What criteria was used when constructing a digital library, particularly concerning issues like purpose, function, design, supply, services, resources and future development of the digital library? 2 How do the digital library system designers and system builders criteria correspond with those of postgraduate researchers? And what factors affect the use? A digital library is an enterprise that gives access to information stored digitally and directly available on the net. The crucial is that the enterprise has a control over collection of information and responsibility to make it available to a defined group of users. In order to investigate the relation between the construction of the digital library and user needs, I have interviewed five key people involved with the work with the digital library and twenty postgraduate researchers from the Gothenburg University.

IT Governance med fokus på IT-investeringar

AbstractDate              2009-06-07Level             Master thesis in Information Technology and Business Administration, 15 hp, EIK024Authors        Anna Karlsson, akn05009@student.mdh.se                      Lena-Maria Lindström, llm05002@student.mdh.seTutor            Peter EkmanTitle              IT Governance with an IT investment focusKeywords     IT Governance, IT investments, IT decisions Problem       To control and manage IT and IT functions in the organization has been a big challenge for many businesses for a long time. In order to make the management of IT more efficient IT Governance is needed. If the organization is going to be successful IT Governance is necessary and this type of governance enables a more effective use of IT that supports the business and its operations. The problem questions for this thesis are: How is the company?s IT Governance built up? How are decisions regarding the company?s IT investments taken? How is the connection between the company?s IT investments and the company?s IT Governance?Purpose        The purpose of this thesis is to describe and analyze how a company?s IT Governance is built up and how the company uses IT Governance to reach the desired results from the IT investments.Method        The thesis is a qualitative study.

Rum för musik på biblioteket: En fallstudie av Bibliotek 10 i Helsingfors

The aim of this master's thesis is to study how the design of the music library space affects how it is used and its role as an arena for culture. This is done in form of a case study of Library 10 in Helsinki, a public library branch that specializes in music and information technology. The backdrop to the study is the changing context for cultural activity in the information society and the role of public libraries as public space and meeting place. By analyzing the distribution of space in the library, the distribution of functions and artefacts and the spatial use of the room, I interpret the ways in which this distributional logic produces a unique place for music and culture. I discuss the music library design in a space and place perspective, utilizing theoretical tools from cultural geography and the space theories of Henri Lefebvre.

Klistret i klustret : En undersökande studie av ansamlingen av GIS-relaterad verksamhet i Gävleregionen

Recent years there has been discussed how the critical situation in the housing market threatens the Stockholm region's growth. The thesis objective is to examine whether there is a scientific link between the lack of housing supply and growth. The thesis also intends to identify solutions for increased housing construction, for instance by examining the conditions for a greater regional perspective and influence on the region's housing supply. The thesis empirical study is based on semi-structured interviews with representatives from the Government, municipalities and the housing industry.In Sweden, research on the relationship between housing shortages and growth has not been conducted to that extent it can be said to exist scientific evidence regarding the growth threat. However, in Britain and the U.S, empirical studies show that a lack of housing supply has hindered growth through negative impact on countries' gross domestic product.

Dragare, täckningsgrader och önskelådor : systematisering och råd för grönplanearbete

We came in contact with the project "Grönplan Danderyd" that aims to create a green structure plan for a municipality of Stockholm called Danderyds kommun. Our thesis is a part of this project and makes it's contribution through the gathering and systematization of the knowledge of the functions of an urban green structure. It also makes a contribution through suggesting how this knowledge can be applied during the construction of an urban green structure plan. We found that "Stadens parker och natur", published by the Swedish National board of Housing, Building and Planning, was a recurrent source of information in the green structure plans that we studied. We saw a need of complementary additions and updates to the rather old report and found literature that adds the developments of the last decade. First of all we have chosen to make themes based on the functions of a green structure that were presented by 'Stadens parker och natur'. The themes we suggest that a greenplanning document manage are: Recreation, Pedagogies and Heath, Biological Diversity, Green structure in the History of Building Cities, Cultural Identity, the Health of the City, Biological Technology in the Municipality and Use and the Users. We found good examples of how to handle these themes in documents that handle greenstructure planning from the municipalities of Göteborg, Strängnäs, Eskilstuna, Malmö, Lund, Västerås and Uppsala.

Frekvensomriktare i hydraulhissdrift

Hydroware Elevation Technology AB sells control and regulation equipment for hydraulic elevators. The company now wants to investigate the possibility of changing their present softstarters to frequency inverters to supply power to their pump engines. They also want to investigate the possibility of future use in so called ?intelligent? houses.The purpose of this report is to investigate these possibilities..

Applikationsintegrering : en analys av metoder och teknik

Abstract In the contemporary world of information technology you find a multitude of applications and systems covering a broad spectrum of areas of need in different companies. One effect of this multitude of programs is the difficulty to make them exchange information with each other or to collaborate, since they are developed by different programming languages for different platforms, with different standards and different data formats. Our aim with this work is to describe how it is possible to tie these programs together to make them actually communicate with each other in order to exchange information, share their native methods and also to become a part of the overall business processes. In this integration task you will, among other things, find different levels of application integration such as data level, method level, application interface level and user interface level integration. Application integration also involves hardware components, called middleware, that facilitate the physical connection between applications.

Virkesgripen, ett geometriskt verktyg :

The aim of this study was to investigate and describe conceptions that been used when people talks about grapples and to put together parameters that the customers sees as important when they chose a grapple from Hultdins. Every year Hultdins manufacturer and sells about 3500 grapples around the world. With so many users its difficult to oblige everyone. To get an apprehension of what kind of grapple the operators wanted a formula with 18 questions was made. For the interviews 20 forestmachineoperators were choicest who had experience from Hultdins grapples, a lot of them also had experience from other grappleproducers and constructions. The study showed that it is the durability the users give priority to.

Skolan i universum - att förklara det ofattbara : Astronomiundervisningen i skolan på 1900-talet

This is a study in how astronomy has been taught and is being taught in Swedish schools from 1905 to this date with an emphasis on the latest 30 years. It concerns the regulations and methodical recommendations/curricula for Swedish junior high school/Swedish Comprehensive school for the years 1905, 1933, 1955, 1958, 1962, 1969, 1980 and 1994. The matter of integrating astronomy with other subjects and different methodical approaches is also considered. The problem with textbooks written only for one subject when the teacher tries to integrate subjects is emphasised.Physics textbook analysis shows that astronomy teaching has over the years developed, from being based on observations, to become more and more theoretical. It also shows that the amount of practical exercises has been fairly constant in physics textbooks during the seventies end eighties but now in the nineties varies a lot from textbook to textbook. The amount of liberty the textbook gives the pupil in finding knowledge and answers himself in the practical parts of astronomy was at its lowest during the seventies.

Opera i Stockholm, Galärvarvet

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.

Relevans och svårigheter i användandet av vardagsteknik i dagliga aktiviteter hos yngre vuxna

Vi lever i ett informations- och teknologisamhälle och i våra dagliga aktiviteter omges vi av vardagsteknik (VT) på olika sätt och i olika svårighetsgrad. Denna VT kan innefatta allt från brödrost till mer avancerade datasystem och tjänster. Tidigare studier visar att personer med kognitiv funktionsnedsättning kan uppleva svårigheter i användandet av VT i sina dagliga aktiviteter. Dock finns inga studier som visar relevans och svårigheter med VT för yngre vuxna utan kognitiv funktionsnedsättning. Därför vill vi med den här studien beskriva relevans och svårigheter i användandet av VT hos yngre vuxna utan kända kognitiva funktionsnedsättningar.

En IT-forensikers kamp mot IT-brottsligheten : En studie om arbetssätt hos polisens IT-forensiker

The use of information technology (IT) is exploding. Today, it is in our daily routines to use some kind of information technology. The increase of users increases the number of cyber crimes, ie, crimes that in some way involve IT. As the cyber crimes grow in numbers, the workload for technical investigator increases, these are called digital crime investigators. The thesis is about how police digital crime investigators work and what problems they may encounter during an investigation.

Militärt stöd till samhället

This report covers a description of the military support attainable to society and made available by the Swedish Armed Forces, in the event of a crisis. The main focal point is the needs of the rescue services..

Lärare, digitalteknik och motivation : En studie om vilka aspekter som påverkar lärares motivation att använda digitalteknik i undervisningen

Studiens syfte är att utveckla kunskap om lärares motivation till användning av digitalteknik i undervisningen. Ämnet belyses genom frågeställningarna; Vilken förståelse har lärare för den digitala teknikens roll i undervisningen? och Vilka aspekter påverkar lärarnas motivation till användning av digitalteknik i undervisningen? I studien deltar fem verksamma lärare som undervisar i årskurs 1-6. Utifrån semistrukturerade kvalitativa intervjuer beskrivs och kategoriseras aspekter som påverkar lärarnas motivation till att använda digitalteknik i undervisningen.   Studien visar att tvetydighet präglar lärarnas förståelse för den digitala tekniken. Lärarna uppvisar en förståelse för teknikens möjligheter och utnyttjar den för personlig utveckling och som informationsbank.Det framkommer dock inte lika frekvent att den digitala tekniken används i undervisningssituationen.   Det är flera aspekter som påverkar lärarnas drivkraft att använda digitalteknik i undervisningen.

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