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1464 Uppsatser om Waste materials - Sida 30 av 98
"Killarna spelar mest fotboll. Tjejerna leker bara tillsammans hela tiden typ" : ? En studie av barns uppfattning av relationen mellan lek och kön analyserat ur ett genusperspektiv
Abstract The purpose of the study is to examine how children perceive the relation between play and sex and analyse it from a gender perspective. This by answering the questions: "Is the children?s choice of place, materials and company in play dependent on gender?" and "Is there a significant difference between the sexes and/or ages?" The study was done through twelve focusgroup interviews with three children in each group except two groups of two children in each. Eight boys and nine girls of six years old and nine boys and eight girls of nine years old were interviewed. Boys and girls were interviewed in separate groups and the questions were open ended and followed up.
Att mäta matsvinn i skolkök : en jämförande studie av 13 metoder att mäta matsvinn
Ungefär en tredjedel av maten som produceras i världen slängs. I Sverige slängs över 1,2 miljoner ton mat varje år. En stor del av det är så kallat matsvinn, onödigt matavfall som skulle kunna använts om den hanterats annorlunda. Matsvinn påverkar miljön och samhällsekonomin med förluster genom hela livsmedelskedjan och genom den avfallshantering matsvinnet ger upphov till. Matavfall kan användas för produktion av biogas, kompost och värme men det är bättre att reducera produktionen än att återanvända eller omvandla produkten.
Svenska skolkök slänger runt 30 000 ton mat varje år, varav drygt hälften beräknas vara matsvinn.
Ett kandidatexamensarbete inom lättviktskonstruktioner .
Due to recent legal enactments regarding carbon dioxide emissions, the car industry is facing higher demands. An effective way of reducing these emissions is to minimize the weight of the vehicle. This thesis constitutes a feasibility study on whether or not it is applicable for the car industry to utilize an inner floor structure comprising composite materials. The principal was the projectSåNätt, in which the main participant was Volvo Cars Corp. In consultation with a reference group, consisting of delegates from the industry and KTH, a specification of requirements was produced.
Uppföljning av byggskadeutredningar i syfte att utveckla utredningsmetoden
Pappersmakulatur uppstår i tryckpressarna, men orsakerna finns i företagets alla funktioner. För ett framgångsrikt förbättringsarbete med att minska makulaturen krävs därför att all personal är engagerad.Examensarbetet utfördes på Bobergs Tryckeri AB i Falun, ett familjeägt företag med 60 anställda, som producerar personifierad direktreklam och blanketter. Syftet var att undersöka hur pappersmakulaturen kan minska och målet var att hitta orsaker samt ge förslag på åtgärder för att minska den.Genom intervjuer med personalen kartlades produktionssprocessen och utifrån det utarbetades förbättringsförslag. Exempel på förbättringsförslag är att kontinuerligt mäta och rapportera makulaturen, förbättra kommunikationen mellan avdelningarna och utveckla färgstyrningen. Litteraturstudier och kontakter med nyckelpersoner inom branschorganisationer och andra liknande företag, var till stor hjälp i arbetet.
Laserskärning i Sverige : ? tekniken, marknaden och hur de utvecklas
Laser for material processing possesses a number of advantages which mean that it has been and will be an important component for a wide range of industries' future development. Cutting materials processing is the dominant use of laser technology and has revolutionized the manufacturing industry. The aim of this thesis is to describe the principles of metal cutting by laser, how laser cutting is applied in practice and to identify how Swedish companies are using laser cutting. For the theoretical and technical description of laser cutting literature studies are the primary source of information. The empirical basis for the mapping of the Swedish industry for laser cutting is grounded on a survey; this includes Swedish companies that use laser cutting in their production.
Lärdom och fostran : En vägledning till skolarkiven på landsarkivet i Uppsala
The Regional State Archive in Uppsala [Landsarkivet i Uppsala] has several archives left from various types of educational institutions in the counties of Dalarna, Södermanland, Uppsala, Västmanland and Örebro. This archiv-al guide reveals the main content of some of the school archives. It goes through the archives of the elementary school, state secondary grammar schools and private secondary grammar schools. A few special schools for the blind and the deaf children are included. The essay also brings up records from community homes and reformato-ries for children and young adults who experienced certain difficulties and therefore could not adjust to the ordi-nary educational system.
Gestaltande av en mötesplats : Att förena visioner i Alby
Mitt examensarbete fra?n Designprogrammet ? ha?llbar utveckling, a?r en under- so?kning av flera dimensioner. Det o?vergripande arbetet a?r ett platsspecifikt insamlande av framtida visioner hos inva?nare, kommun och kreato?r. Visualiseringen involverar samtliga av de ovan na?mnda parterna i skapandet av en ny mo?tes- plats i ett medialt kategoriserat miljonprogramsomra?de.
Effektiviseringsåtgärder i tryckluftsystemet hos Vattenfall Värme Uppsala
In this work an assessment of the compressed air system in the facilities of Vattenfall Heat Uppsala has been conducted. The facilities constitutes, among others, a combined heat and power plant, and two waste incineration plants. The compressed air is supplied primarily by seven rotary screw compressors and yearly electric energy consumption in these has been determined. Furthermore, the usage of compressed air has been mapped in order to find processes with energy savings potential. Several suggestions how to reduce the usage of compressed air have been presented, resulting in decreased need of electric energy and reduced CO2-emissions.The results show that total need of electric energy in the compressors, during a standard production year, amounts to 5.83 GWh.
Satsa på leken! : en studie om skolgårdens betydelse för barns lek och utveckling
The intention of this final thesis is to examine how to create a schoolyard that inspires children at the age of 6 ? 12 years to play and give them possibility to develop. To get a lot of knowledge in this subject, I have combined studies of literature with practical studies at Hosjöskolan in Falun. During my practical studies I have done interviews, walks in the area with the children and visited other schoolyards. I have based a design proposal for the schoolyard of Hosjöskolan on these studies.
Förbättrad vakuumtätning mot kabeln under plastextruderingsprocessen
This thesis is about developing a design that provides improved vacuum seal between a lead coating and a plastic coating during plastic extrusion processes of cables. This report is a part of the course MSGC 17 for Bachelor Engineers in mechanical engineering.The work is performed at Nexans Norway AS in Halden where they have a production of high voltage cables for sea-, and offshore industry. A problem they face is that they do not get enough good seal at the attachment to the plastic extrusion machine. They want to achieve a vacuum between a lead coating on the cable and a plastic coating of the cable for plastic extrusion, which is something they do not achieve today. The thesis is thus to come up with a design that provides better sealing against the cable.The work involves a construction part with the phases of product development processes.
Crowdfunding - En ständig kommunikation : En studie på en communitys relevans runt ett crowdfundat projekt
In this thesis we focus on the issue of crowdfunding and especially how a project relates to and embraces its community. While a lot of related research focus on what makes people give, our research instead delve into whether a creator looks upon the sponsors as something more than just a financial resource. To manage this task we used a triangular perspective consisting of a case study, a questionnaire and a netnographic study. The goal was to gain the perspectives of creators, crowdfunding platforms and sponsors on how the communication between the community and the project works and can be improved. The three crowdfunding platforms we reviewed (Kickstarter, IndieGoGo, Rockethub) all had fairly similar models on how to attract sponsors and make them involved in the project, while the questionnaire and netnographic study demonstrated how a community could contribute in different ways.
Grafisk profil Jönköping Bandy : Visual identity Jönköping Bandy
During the spring of 2013 we developed a visual identity for Jönköping Bandy, a bandy association in Jönköping, which was founded in 1947.Jönköping Bandy?s main problem was the low interest for the association by the local people. The association also had problems with the economy, which made it hard for them to merchandise themselves.In Jönköping, there were a lot of sport associations, and therefore, it was difficult to find sponsors. One way to help the association, was to create a good visual identity for them. A visual identity that would reflect on the proper values of the association.The intention was: ?Through graphical design, we want to convey Jönköping Bandy to a larger amount of people, and get increased knowledge in graphical idiom.? and was torn apart into these three questions:What core values does Jönköping Bandy have, and how can we convey them through the visual identity?Which visual materials does Jönköping Bandy need?How do other teams in Allsvenskan Södra merchandise themselves through their websites?The work began with a study of relevant theoretical literature, with focus on graphical design.
En modell för att kostnadseffektivt öka produktionen inom aluminium-bearbetning
The purpose of this study is from a case study develop a model that aims to cost effectively improve productivity in a manufacturing production process. The study highlights the importance of having knowledge about customer needs and using a holistic process perspective when improving productivity to identify the relations between the process stations and by this find problems that cause waste and losses in productivity. Tools and methods used to make production more efficient such as single minute exchange of die, spaghetti diagram, 5s and master production schedule is presented an applied in the model to see how these effect costs, productivity etc.Maintenance effects on quality and productivity in a manufacturing company will as well be covered in this thesis. The results and conclusions finally reveals how the process improvement tools, maintenance and production planning for example effects each other and why it is important to establish an attitude in the company where continuous process improvement should be emphasized..
SEO-vänligt CMS med ASP.NET MVC
Fossil fuels are affecting our climate negatively and there is a limited amount of them in the world, which leads to the importance of finding alternative fuels. One alternative is biogas, which is produced though a digestion process of different organic materials in a biogasreactor. Organic substrate that comes from farms has the biggest potential to increase the production of biogas in Sweden. Primarily crops from farms, but also waste products like manure are of great importance.Today there is a calculated theoretical potential for biogasproduction of 14TWh per year, which is around ten times larger than Sweden?s production today.
Kvalité inom ramarna: Vägar till kvalitativ undervisning inom musikskolans instrumentalundervisning
Projektbeskrivning: Bakgrund: Vid valsning av tunna band med hög hållfasthet används reversibla mångvalsarsverk. Kundkraven är höga vad gäller bandens planhet. Planheten kan styras genom de planhetsställdon som valsverket är utrustat med. Syfte: Förvärva kunskap om hur de olika ställdonen inverkar på planheten. Varje enskilt ställdons inverkan på planheten kan undersökas genom att genomföra en föreskriven förändring av ställdonets läge och därefter utvärdera planhetsförändringen som uppkom.