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6888 Uppsatser om Custom made-tillverkning - Sida 32 av 460
Modellering och design av elmotor för mutterdragare
This thesis was carried out at Atlas Copco Tools and Assembly Systems. The purpose hasbeen to develop a design tool to be used for development of new electric motors for AtlasCopcos electric nutrunners. The focus of the thesis has been to increase productivity bydecreasing the power losses in an electric tool. The productivity is defined as themaximum number of tightenings a nutrunner can perform without becoming too hot.Before starting the development of this design tool an existing Matlab script, whichcalculates the losses in a slotless electric motor, has been studied and modified torepresent the real losses in a better way. The modification has been made by performingpractical studies of different losses and then adjusting existing parameters in the Matlabscript.Because design changes in one part of a mechatronic system can lead to a decrease inperformance of another part the choice of parameters that can be changed has been madeso that other parts of the system is affected as little as possible.A study of the existing tools efficiency during an entire tightening has been made toincrease the understanding of when and where the different losses appear and to comparethe modified Matlab script with the measured values.The design tool was formed so that it executes the Matlab script, that calculates thelosses, for a number of different design options and stores the alternative which producesthe least losses.
INDUSTRIALISERING AV FLERBOSTADSHUS
The construction process which is used today while constructing residential buildings has for along time remained unchanged. Unfortunately the development process has gone away frombecoming industrialized and instead most of the work is done at the construction site. In thisrespect this is a worse alternative because the project outcome will be more expensive and theconstruction time will be longer. Skanska?s vision is to have a process which is more like the oneused in small residential buildings which is fully industrialized.The constructing process for residential building involves more parties and therefore it becomesmore complicated.
Speloist
This thesis aims to examine the phenomenon of gambling and consequences that may result from having a gambling problem. The thesis also intends to investigate opportunities for support and a few explanatory- and treatment models. Games are taking on new shapes and access to gambling for money is on the rise. Studies on gambling have primarily been focusing on epidemiological factors rather than factors increasing or decreasing the risk of developing gambling-related problems. The empirical material is based on eight qualitative semi-structured interviews.
Implementeringen av EU:s ramdirektivför vatten i kommunernas planarbete : En studie av kommunerna i Stockholms län
The European Water Framework Directive (WFD; 2000/60/EC) was incorporated into the Swedish legislation in 2004 through the ordinance Förordningen om förvaltningenav kvaliteten på vattenmiljön (SFS 2004:660). The objective is that all water bodies shall reach a good status by the year 2015. In Sweden the comprehensive plans of the municipalities can play a large role in reaching these goals. A comprehensive plan deals with the long term water and land use of the municipality, which can facilitate an early consideration of water management in the planning process of the municipality. In Sweden five river basin districts have been established in accordance with the Water Framework Directive.
Minskning av ändeffekter vid valsning i fristående trimvalsverk
Den största enskilda verktygskostnaden för tillverkning av varmvalsade band är kostnaden för valsar. Valsarna slits under valsningsprocessen och måste med jämna mellanrum slipas för att tillfredställande produktegenskaper skall innehållas. Livslängden för en vals bestäms av dess belastning, geometri och materialegenskaper, när de inte uppfyller kravet på mått eller hållfasthet måste de skrotas och ersättas. Kostnaden för valsar liksom produktiviteten påverkas således av flera faktorer. Valsmaterial, tillverkningsteknik för valsar, valsslipmaskiner, mätmetoder liksom metoder att utnyttja valsarna utvecklas hela tiden.
?Who knew homosexuality was scarier than zombies?? : En genusvetenskaplig studie av normer för sexualitet i tv-serien The Walking Dead.
This study demonstrates how norms and ideals about sexuality and gender expression are used in the TV-show The Walking Dead. An intermediate study is made on the comic books? two same sex couples as they are compared to how they are represented in the TV-show. Tara Chambler and Alisha, a same sex couple who only exist in the TV-show, not in the comic books, are also analysed. Queer theory and an intersectional perspective are used to discover how different power asymmetries are connected to each other through an active interplay.
Hur gott är gratis? : En studie om gratisekonomi
The purpose of this thesis is to identify the most important establishment criteria for companies whointend to do a new establishment. There are differences between regions regarding attraction on startup.Some regions have few new businesses while others continuously expanded its activities in variousfields. The biggest focus on the thesis is the Gävle- Borlänge region where MellansvenskaHandelskammaren is active.Mellansvenska Handelskammaren saw a need for the assignment after the magazine ?IntelligentLogistik? ranked the Gävle region at 15:th place and Falun/Borlänge at 20:th place in the list over thetop 25 best logistics locations in Sweden. This made them wonder what could be made to develop intoa better area with more amenities and a better place in the ranking of the magazine.
Prefabricerade passivhusväggar
Background: The most energy efficient houses today are so called passive houses. These houses achieve high energy-efficiency partly by having well insulated walls. U-value describes the amount of heat transfered through a building element, the more insulation, the smaller U-value. A typical passive house wall have a U-value of 0.10 W/m2,°C. The passive houses are primarily made as small family houses and not as a block of apartments.
Verkfrågan-katalogisatörens huvudvärk. En studie av regelverket vid katalogisering av musiktryck med utgångspunkt i begreppet verk.
The aim of this thesis is to explore the concept of the work and the problems with the definition of it. The concept is an important starting-point when it comes to cataloguing musical works and creating uniform titles. Another aim is to find out other difficulties that are frequent in cataloguing printed music. In the theoretical part of this thesis Functional Requirements for Bibliographic Records FRBR and the Swedish cataloguing rules KRS are important tools. The FRBR-model and the four entities work, expression, manifestation and item are described.
Nu gäller det! Varför slutar då ungdomar utöva ishockey?
Idamari Törnberg & Marcus Tillberg (2011).Nu gäller det! Varför slutar då ungdomar spela ishockey? ? En kvantitativ enkätstudie om fortsatt eller avslutande ishockeykarriär efter uttagningarna till distriktsförbundslag i Västerbottens län. (Now is the time! Why do teenagers stop playing ice hockey? ? A quantitative survey study about continued or ending ice hockey career after tryout to Team Västerbotten) Bachelor Essay in Swedish. Umeå: Umeå University, Department of education.AbstractThis Bachelors thesis is a survey study on why talented teenagers in the county of Västerbotten, Sweden dropout of, or proceed the sport ice hockey.
Ändringarna i expropriationslagens ersättningsbestämmelser : Har lagändringarna lett till några effekter för Trafikverket?
In December 2005 the government ordered a group to investigate the compensation law of expropriation. The purpose was to change the law so that it would reflect today?s conditions of expropriation. The result of the investigation was that some changes were made in the law of expropriation. The aim of the changes was to strengthen the ownership of properties. Following changes was made in august 2010; the deduction of tolerance was rescinded as well as the rule of presumption and a new rule was added saying that the market value/decrease in market value should be multiplied with 25 percent when the compensation was calculated. The aim of this thesis is to investigate how Trafikverket has experienced these changes from 2010.
Verifikation av process för laminering
Lätta material med resurs- och energioptimerade processer med hög nyttjandegrad av råvarorna är i linje med dagens och morgondagens marknadsbehov. Göran Lundgren på GeLund AB i Sundsvall har precist inringat just detta genom patentet för processen att tillverka flerskiktsskivor med en ny och unik metod. Detta examensarbete är ett steg i ledet i att kommersialisera patentet genom verifiering och utvärdering av processen. Arbetet som ligger till grund för examensarbetet inleddes redan hösten 2008 med utvecklingen av den testutrustning som färdigställdes i examensarbetets första skede. Målsättningen för arbetet har varit att beskriva processen teoretiskt och att utvärdera metoden genom praktiska tester.
Stärkelsers funktion som konsistensgivare vid olika temperaturer i pulversoppa : en experimentell kvantitativ studie
More often consumers demand instant dry soup that can be prepared with a water temperature below 100o C, which is currently not possible, because the dry soup becomes too thin when using water with a lower temperature. In this study, various kinds of starch studies were made to optimize the starch used in the existing product to make it more viscous at both high and low temperatures. The result was that one of the two starches present in the existing product was retained by change in quantity as it contributed to important flavor parameters. The second was removed and replaced with a starch that made the product more viscous at lower temperatures. To find out if the new product differed from the existing product a viscosity measurement and a sensory paired preference test were made.
Teknisk förstudie för bearbetning med industrirobot
In December 2005 the government ordered a group to investigate the compensation law of expropriation. The purpose was to change the law so that it would reflect today?s conditions of expropriation. The result of the investigation was that some changes were made in the law of expropriation. The aim of the changes was to strengthen the ownership of properties. Following changes was made in august 2010; the deduction of tolerance was rescinded as well as the rule of presumption and a new rule was added saying that the market value/decrease in market value should be multiplied with 25 percent when the compensation was calculated. The aim of this thesis is to investigate how Trafikverket has experienced these changes from 2010.
En intervju och enkätstudie av besökare i tre tätortsnära skogsområden i Stockholmstrakten :
This Masters thesis is made as the first of two visitor surveys of three urban forest
areas. These areas are; Skutan recreational area in Haninge, Ugglevikskällan on Norra
Djurgården in Stockholm and the Paradiset Reserve in Huddinge. The study is made
in cooperation with the managers of the three areas operating within the European
Union Life Project regarding Urban Woods for People.
The goal has been to collect data through studies of visitors and close by residents in
the three areas. The results are to be used as primary values for the follow-up as well
as a basis for managerial decisions. The interviews and surveys are also constructed in
a fashion so that they can be used for the follow-up study.
For the Skutan recreational area the mode of contact was by sending forms to the
nearby residential areas.