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753 Uppsatser om Structural hollow sections - Sida 2 av 51
Redovisning av dörrar och dörrpartier i offentliga lokaler : Problem och förslag till förbättringsåtgärder
Today, the requirements on doors and door sections in buildings are often many andtightly restricted. Especially in public buildings, the requirements for safety andfunctionality must cover the needs of larger groups of people. These strictrequirements have often led to doors and door sections in public buildings being verycomplex and difficult to correctly install without any complications.This diploma work has been carried out in cooperation with Werket Architects,which estimates a high percentage of flaws regarding aforementioned components, inprojects of the type described. The company therefore wanted to investigate howthey could develop their remit in door production, which is the projection and designof blueprints. By taking part of installers opinions on how they want the blueprints ofdoors and door - sections to be designed for the best installation possibilities,develop¬ment areas, and to some extent improvements regarding the company's useof accounting techniques, could be provided to the company.The study shows, among other things, that there is a possibility of development in thefunctional descriptions that entail the doors' fitting components.
Kostnadsutjämningen inom Barnomsorgen i Sverige - en diskriminantanalys
Sweden?s District councils and Country councils are in itself to a large extent responsible for the state financed welfare. Because of this, Sweden has a contribution- and adjustment system. The reason for this system is to create equal chance, for all District councils and Country councils, to be able to give the citizens service independently of their income and non-influential structural differences. The adjustment is built upon the so-called standard cost method, which contains four different parts.
Momentbärförmåga för semikompakta ståltvärsnitt av HSQ-balkar : En modell för interpolering mellan eurokodens klass 2 och 3
The current standards for design of steel beams are divided into four classes based on the slenderness of cross-sectional parts. Depending on the section class a beams load capacity is either determined by a plastic, elastic or a reduced elastic model. The division between cross-sections calculated by a plastic and an elastic model is today done in a very harsh way with no smooth transition. This leads to a large difference in the calculated resistance for the sections located near the class limits. Elasto-plastic sections are in the current situation calculated as purely elastic and their large plastic reserve is not considered in the current standards.
Influence of the habitat on the potential for cannibalism and population dynamics in stream-dwelling European grayling (Thymallus thymallus L.)
Cannibalism can have major influence on fish population dynamics. A prerequisite for cannibalism is that the cannibal and the potential victim meet, and besides density effects, the encounter rate between cannibals and their victims is therefore also largely dependent on habitat use and habitat heterogeneity. In this study I quantified and compared the potential for cannibalism in stream-dwelling European grayling populations in three rivers in Jämtland by means of habitat classifications. I also analyzed population dynamic consequences of varying the potential for cannibalism in terms of intensity, using a physiological structured population model. Findings based on habitat characteristics were that the potential for cannibalism is in general not favourable in these types of streams.
Erfarenhetsåterföring av konstruktionslösningar Optimal utformning av ett detaljbibliotek med standardiserade konstruktionslösningar
This thesis has been carried out at the Building and Civil Engineering Programme at Chalmers University of Technology in cooperation with NCC Technology. The study aims to investigate the optimal design of a library of standardized structural solutions for in-house multi-family buildings and what benefits it brings. Today NCC use technology platforms to improve efficiency and simplify the construction process. The platforms provide the constructors guidelines on how construction details should look like, but the details are not complete. NCC Technology started in the spring of 2013 a project to investigate what benefits there are to create a library of standardized structural solutions for the constructors, with more detailed solutions than in the platforms.
Scintigrafisk undersökning av esofagusmotilitet hos häst :
Scintigraphic examination of the esophagus has for some time been the method of choice for the study of motility dysfunction in humans. The method has not yet been described for horses hence the lack of reference values for passage time for a bolus through the esophagus in healthy subjects. The purposes of this study were to measure passage velocity and time for a bolus to pass through the esophagus in healthy subjects, as well as to evaluate the reproducibility of the method. Eight warm-blooded trotters were used in the study. The horses were sedated with a low dose of Acepromazine prior to onset of the study.
Barn i fokus: En komparativ studie av arbetet med barnverksamhet på folkbibliotek i Sverige och Italien.
The purpose for this Master?s thesis is to describe the similarities and the differences of the work at the public libraries? children?s sections, between Sweden and Italy. In order to do that we examine the cultural political presumptions that Swedish and Italian libraries have, such as policies concerning public libraries and children, on a national as well as an international level. We also look at existing attitudes regarding the work at the public libraries? children?s sections, among authors of research literature in our subject.
Skillnader i mulmvolymer mellan fem trädslag i Östergötlands eklandskap
Old hollow trees of oak contain a large amount of wood mould. Unfortunately, these trees have in the last century been greatly reduced in numbers. It has resulted in that species that depend on these habitats, saproxylic species, have become at risk to decrease in numbers or die out regionally. Previous studies have shown that the volume of wood mould is an important factor for occurrence and population size of saproxylic organisms. The aim of the present study was to examine how the volume of wood mould varies among ash (Fraxinus excelsior), lime (Tilia sp.), maple (Acer platanoides), aspen (Populus tremula) and oak (Quercus robur).
Utveckling av analysverktyg för verksamheters CO2-utsläpp och energianvändning
With increasing energy prices and increased focus on the environment we saw the need for companies to get control over their energy use and their emission of carbon dioxid. An analysis tool that integrates both these areas is, with our knowledge, not available on the market today. Therefore, our project became to develop such a tool.By doing this degree project we would like to clarify that energy consumption and environmental impact are integrated. The less energy consumed by today?s society the smaller the environmental impact will be.
Stuxnet-attacken mot Iran : Strukturell realism i informationsrevolutionens tidsålder
This study aims to explain the Stuxnet-attack against Iran in 2009-2010 by using the IR-theory of structural realism. By doing so the theory also faces the challenge of the impact of the information revolution on security and international relations. The structural realism that is at hand is that of Kenneth Waltz and his Theory of International Politics from 1979.The study reaches the conclusion that Waltzs focus on the structure of the international system and the distribution of capabilities applies well to the case of Stuxnet as a cyber attack. The creators of the sophisticated Stuxnet, USA and Israel, also indicates that when it comes to this certain aspect of the information revolution and IR, states seem to still be the main actor. Finally the character of one of the major features of the Stuxnet-attack; the internet, is shown to have an anarchic structure that fits well as an extension of the realist view of the international system..
Redovisning och förvaltning av intellektuellt kapital : I kunskapsföretag och fotbollsklubbar
The business world of today is characterized by the fact that knowledge plays a far greater role than it did before in the companies? production. In many companies, the human resources constitute the main part of the total assets. It can for example be the employees? knowledge, competence or power of initiative.
Ska jag, ska jag inte?: - En studie av hur intentionen till eget företagande i Norrbotten påverkas av strukturfonderna samt Ikeas etablering i länet
Title: Shall I, shall I not? ? A study of how the intention to engage in entrepreneurial behaviour in Norrbotten is influenced by the financial support from the Structural Funds and the establishment of Ikea in the city of Haparanda. Author: Erica Carlson Tutor: Professor Carin Holmquist/ Docent Monica Lindgren Purpose:The purpose of this thesis is to study what aspects that cause the intention to start a company. Therefore this thesis will look at two different situations, the Structural Funds and the establishment of Ikea in Norrbotten, to try to find out if and how these two situations affect the intention among potential entrepreneurs to engage in entrepreneurial behaviour. Method: A qualitative method is used, since this thesis aims at getting an understanding of a specific phenomena; the intention to entrepreneurial behaviour.
Glastaket : ett bärande klimatskal
This candidate.?s work includes designing of a house with it.?s structural components andinstallations. The house had to be actual with Building Regulations (Boverkets Byggregler).Beside designing of all the crucial systems necessary for completing of claimed regulations evenan optional topic within building engineering had to be chosen.The task included designing of heating, ventilation, sanitation and electricity systems. Structuralengineering models has been made in compliance with Eurocodes. Materials for facades, floorsand roof were chosen and evaluated.As recessed portion of the work, evaluating of possibilities in designing of a glass roof waschosen.
Översvämningsrisker längs Funboån
Flooding events are no longer rare, floods occur all over the world. Accordingly, it is vital for the society and different authorities to work with flood mapping. To meet the goal of Uppsala kommun to map the risks of floods in Uppsala län, a map of the different areas around Funboån which are inside the area of risk for flooding have been developed.In the work, cross sections and the water flow have been measured. Moreover, an echo-sounding have been carried out in Funboån to map the bottom topography. From the bottom map and laser scanned data covering the study area, a terrain model was created.
Veingeskolan F - Undersökning av inomhusmiljön samt en konstruktionsmässig utvärdering
Title: Veingeskolan F - Investigation of the indoor environment and a structural analysisMethod: Complete analysis of structural drawings to determine if the school have been constructed correctly. In my teorethical studies of the drawings I must seek out points that may have been damaged from moisture, this contains a full survey of the foundation, walls and ceiling. To strenghten the data collected from the drawings I must visit the school and do field investigations to find out if the school has any problems with the indoor environment.Analysis: I determined that we had some damages on specific places, these damages was caused by leaking roofs, a carpet that was tarnished by strong sunlight in connection with some type of glue and also the ventilation that may have been drawing malodorous air from a shaft in the foundation.Conclusion: I was able to see that the decision to demolish the school was quite drastic, if the county would have done continuous fixups on the construcion when the employes had complained maybe the action to the tear the school down would have been unnecessary. The lack of communication between the two parts lead up to the decision to demolish and build a complete new school..