Sök:

Sökresultat:

2053 Uppsatser om Steel industry - Sida 44 av 137

Teoretisk och experimentell utvärdering av Lättelement AB:s takinfästning

Lattelement AB in Ornskoldsvik is one of the leading companies in Sweden in composite elements in walls, floors and roofs in particular. The company supplies elements to buildings located with a wide geographical variation, which means that the products are subjected to very different climate with regard to snow, wind and humidity. This places high demands and requires the elements to withstand large variable loads.The elements are made of lightweight beams with flanges of structural timber and beam webs made of OSB. These are bound together by nogging pieces with the same kind of structure. On top of the beams a nailed and glued plywood is added to absorb compressive forces and on the underside of the element a sheet of steel is added for tensile absorption.These elements are then attached to the building framework in different ways depending on the particular element height, loads and the structual supporting material of the frame work.

Utveckling av golvlucka för hoppgropssystem i kommunal idrottshall

In this thesis a concept for floor hatches for foam pits has been developed. Since there is an existing solution that is powered by hydraulics and is expensive, the goal was to develop a cheaper solution, as simple as possible.A number of different concepts were developed and evaluated. A concept with five sections that are pulled to the side and stacked on each other was chosen as it was thought to have the lowest risk of crush injuries and to be easiest to manage and control. In the opening behind the foam mattress a lifting table is placed to regulate the height of the stacked sections.To be allowed to be installed in the floor of sports halls the sections must be dimensioned according to the construction standards for these types of buildings. Different dimensions of beams in steel and wood materials were evaluated and of those, who lived up to the requirements of the standard, a concept was chosen.

Krav och arkitektur för CAD/PLM-support : Med en utvärdering av fem ärendehanteringssystem

Denna rapport är resultatet av ett examensarbete inom Industriell Produktion vid KTH, utfört vid Avalon PLM AB. Syftet har varit att grundligt utreda vad som krävs för att sätta upp en "first line"-support för användare till Siemens Industry Softwares produktportfölj. Målet med examensarbetet var att ta fram en kravspecifikation för det system som ska hantera kundernas supportärenden, samt hitta och utvärdera ett befintligt system som lever upp till kraven. Vidare togs också en support- och ärendehanteringsprocess fram, vilken beskriver hur ärenden ska skötas.Inledande frågeställningar för examensarbetet var frågor som; Hur hanteras ett ärende? Hur många ärenden kommer supporten hantera per dag? Hur kan supportingenjören få hjälp om ärendena är för avancerade? Är kundsupport bara en kostnad för företaget eller vilka bieffekter kan det medföra?En litteraturstudie gjordes för att få grundläggande förståelse för olika typer av supportkällor, CRM, kunskapsförmedling, syftet med kundsupport och supportingenjörens roll.

Det antropocentriskt styrda Sverige : En undersökning om riksdagspartiernas miljöideologiska närings-, miljö- och jordbrukspolitik under mandatperioden 2002-2006

This essay examines the environmental ideological direction of the Swedish parliamentary parties through the private members motions directed to the committee of industry and trade and the committee of environment and agriculture during the governmental time from 2002 to 2006.The environmental ideologies explained is anthropocentrism, ecocentrism and biocentrism. Based on the ideas of these three ideologies main points the private members motions directed to the committee of industry and trade and the committee of environment and agriculture, also matching the search words environment and energy, was compared and analysed.What has emerged is that all parliamentary parties express a desire to create an energy production and producing guide lines which are stringent environmentally and matches the safety requirements. Although the approach to environmental and safety standards differ significantly between them. Basically all Swedish parliamentary parties are more or less anthropocentric in its arguments, which in short terms means that they estimate natures and animals value through their usability for humans or based on their contribution to human feelings of wellbeing.The Centre Party and the Green Party shows hints of weak ecocentrism because in many cases they put animal intrinsic value high, but the human value higher. Moderates are predominantly anthropocentric but they also express some hint of biocentrism in one statement concerning research in order to reduce and rebuild environmentally destroyed areas.

"Jag bygger ett hus så han inte fryser" : 1-3 åringars byggprocess

Denna rapport är resultatet av ett examensarbete inom Industriell Produktion vid KTH, utfört vid Avalon PLM AB. Syftet har varit att grundligt utreda vad som krävs för att sätta upp en "first line"-support för användare till Siemens Industry Softwares produktportfölj. Målet med examensarbetet var att ta fram en kravspecifikation för det system som ska hantera kundernas supportärenden, samt hitta och utvärdera ett befintligt system som lever upp till kraven. Vidare togs också en support- och ärendehanteringsprocess fram, vilken beskriver hur ärenden ska skötas.Inledande frågeställningar för examensarbetet var frågor som; Hur hanteras ett ärende? Hur många ärenden kommer supporten hantera per dag? Hur kan supportingenjören få hjälp om ärendena är för avancerade? Är kundsupport bara en kostnad för företaget eller vilka bieffekter kan det medföra?En litteraturstudie gjordes för att få grundläggande förståelse för olika typer av supportkällor, CRM, kunskapsförmedling, syftet med kundsupport och supportingenjörens roll.

Höghållfast stål : Optimerat materialutnyttjande i byggnadsstommar

I detta examensarbete utförs en jämförelse av HSQ-balkar och VKR- pelare i hållfasthetsklass S355 respektive S460. I arbetet dimensioneras profiler anpassade efter studerade fiktiva konstruktioner och ställs emot varandra. Syftet är att optimera profilerna och effektivisera stålanvändningen. Förhoppningen är att en applicering av höghållfast stål i vanliga konstruktioner medför en reducerad stålmängd. Är minskningen tillräckligt stor bidrar denna i sin tur till en mindre miljöpåverkan samt kostnadseffektiva dimensioneringslösningar.Två olika byggnadsstommar utförda i stål med sträckgränsen 355 respektive 460 MPa undersöks.

Jämförande simulering och modellering av framtida järnvägars elenergiförsörjning

In this thesis, the Train Power System Simulator (TPSS) has been compared and verified with the commercial simulator TracFeed® Simulation (TracFeed). The basis for the comparison was a given part of the Swedish railway system, with steel transportation trains. Primarily, emphasis was placed on running time and energy consumption in simulation results. Two transformer systems were analyzed, booster and auto transformers. The high voltage transmission line, parallel to the railroad track, was disconnected in some simulations.

Politiska visioner och regionala krafters inverkan på kulturarv : En studie om hur Kalmar läns kulturarv används och värderas i det postindustriella samhället

This is a qualitative essay that has its starting point in the deindustrialized community in the county of Kalmar. At the time deindustrialization started, the globalization and the technical development took form, this resulted in increasing traveling in the world. The communities that had lost their industries had to find new ways of surviving. The politicians used the increasing travelling and tourism and saw a new industry in the tourism, therefore they made cultural heritage visible. Main focus lies in the will from politicians to visualize cultural heritage for economic gain and the administration of cultural heritage that in essence had to accept a new use of the cultural heritage.

Sammankoppling av fjärrvärmenäten i Nyköping och Oxelösund : miljö- och systemkonsekvenser

District heating covers most of the residential areas and industries in the twoneighbouring Swedish municipalities Nyköping and Oxelösund. In Nyköping,Vattenfall AB Värme produces heat in a bio-fuelled CHP plant. In Oxelösund,waste heat and use of waste gases from the steel production at SSABOxelösund is the basis in the district heating system.This report examines the environmental consequences of a connection betweenthe two district heating systems. A broad system approach is used and the focusis on environmental effects in the system.A system analysis has been performed on the result of simulations of differentheat and electricity production alternatives. The alternatives simulated wereone where Vattenfall Nyköping covers the base load in the joint district heatingsystem and two where the power plant at SSAB Oxelösund supplies the heatbase load.The conclusion in this report is that the consequences of connecting the twodistrict heating systems can be both positive and negative, depending onsystem boundaries and on the environmental focus.

Trafikverket : Kritiska faktorer i projekt inom avdelningen Nationella Projekt

This study has been made on behalf of the Swedish Transport Administration to study the work of the department National Projects. The Swedish construction industry has for many years been characterized by low productivity. By being the largest purchaser of contracts in the industry the Swedish Transport Administration has a unique opportunity to influence the productivity. In order to improve in productivity The Swedish Transport Administration is adopting a new role in which they will order more turnkey projects. In our study, we will focus on how one department within the Swedish Transport Administration, National Projects, can perform successful turnkey projects.To clarify how the department National Projects can perform successful projects, this study identifies critical factors for projects and their links to different phases of the project.

Lammproduktionens ekonomiska påverkan av MTR :

The Swedish consumption of lamb a increasing, and today we yearly eat a kilo of lamb per person each year. As a consequence the Swedish degree of self production according to lamb is steadily decreasing, and is today about 39 %.Today Swedish Meats is now cooperating with the Swedish lamb breeders organisation to raise that percentage. At the same time the European Union presents a new agricultural reform, the MTR (Mid Term Review). The shape of this new reform is not yet fully known, but the general policy has been more or less outlined. The new reform is split into three propositions: the farm model, the regional model and the mixed model.

Fiberföstärkning av Limträbalkar

Glulam is a product that was engineered to make use of timber in a more efficient way. Bychoosing timber of similar quality and discarding natural defects during production, thedevelopment of a stronger cross-section is achieved.Carbon fiber is a relatively new material with a high tension capacity. This feature is used toexamine how the bending capacity of the beams improve by adhering carbon fiber laminateson the lower edge of the beamsThe strength of the material is tested with three experiments: carbon fiber on the bottom of thebeam (a), carbon fiber attached to the lower sides of the beam (b) and carbon fiber in thebeam, covered with a layer of wood (c)The results show that the first case, where the carbon fiber is attached to the bottom of thebeam, gave the best result with an increase in capacity of 59 % compared to the nonreinforcedcontrol. The other two cases also show an improvement in capacity, beam-type 3had a capacity increase of 47% and beam-type 4 increased with 25 %Tests were also made with glulam beams reinforced with fiberglass, but these tests were notanalyzed in depth because the purpose was to compare the capacity to carbon fiber. Thisbeam improved its capacity by 40.3%.The tests show that carbon fiber as a reinforcement material for glulam is a good choice whenthere is a requirement for stronger cross-sections in both new production and renovation ofold buildings.

Uppfattningar om trender inom charterbranschen : - vart är utvecklingen på väg?

Aim: By studying the evolution of the market for package holidays over time we hope to get an understanding of the trends that have characterized the market. By doing so, we can get an idea of where the market is moving towards the future. This knowledge is essential for market participants to establish appropriate strategies that follow market trends.Method: We have used qualitative interviews with people involved in the charter industry.Result & Conclusions: The market is characterized by an increase in Internet orientation, where the travel directory and the physical travel agents are becoming less important. The understanding of climate impacts of travel has increased. More people of the third-generation buy package travels and countries in North Africa and Asia are growing in popularity.We believe the market in the coming years will be characterized by lower prices and lower quality.

Stuck in the Middle With You : En kvalitativ studie om förutsättningarna för mellanchefer inom äldreomsorgen i privat och offentlig verksamhet

The position of middle-management is a role where the manager is at risk of being caught between its management and its employees. Elderly care is an industry that has been discussed a lot, to a large extent on how businesses should be managed and by whom it should be conducted. Middle-management in the business of elderly care thereby possess a vulnerable position in a controversial industry. In this study the aim is to investigate the managers' roles and tasks in both the public sector and the private sector in elderly care. It also aims to examine whether there are differences between the roles and how they in such cases is manifested.

"I will go now to my pyre" : Isaks bindande läst genom J.R.R. Tolkiens The Lord of the Rings

This paper investigates the science fiction novels of Swedish crime writer Per Wahlöö, most famous for his collaboration with his writing partner Maj Sjöwall on the ten Martin Beck mysteries. During two important years, 1964 and 1968, Wahlöö wrote the novels Murder On the 31st Floor and The Steel Spring, set in a near future land ruled by a social fascist power structure where political opposition is eradicated. The pretexted notion of this paper is that these novels consists of extensive quantities of criticism against the Swedish welfare state and the monopoly-capitalistic Swedish press during the sixties. Through the lens of science fiction theory and the notion of the novels as historical sources this paper concludes that PerWahlöö´s science fiction becomes a bridge between the classic Swedish detective novel and the new social critic crime fiction in the style of Sjöwall-Wahlöö and others. The novels are also representations of the historical process in the mid-sixties during the radical turn: the sci-fi novels as social criticism of the contemporary society ? an utopian flare.

<- Föregående sida 44 Nästa sida ->