Nynas produces bitumen at two refineries in Sweden. The bitumen is shipped to seven depots along the swedish coast line, and from the depots special trucks handle the transportation to customers. Recently Nynas has transformed its supply chain and closed down a few depots. At the moment the company is considering a further reduction of the number of depots. In connection to these discussions an analyse of the companys distributionsystem and of possible changes is required.

This thesis was done after a request from the county?s administrative board of Västmanland to provide the board with a better understanding of how green areas have changed within Västerås municipality over time.The purpose and goal of this study was thus to measure and analyze how much of the green areas within Västerås municipality that have disappeared during the past one hundred years as well as to provide a review of previous studies regarding the importance of green areas for humans as well as the biological diversity.In order to answer these questions I have in this study used a combination of a literature study, cartographic analysis as well as a time series analysis. The computer software used to do the measurements of the green areas was ArcGIS which is a geographical information system.In the cartographic and times series anlaysis measurements and analysis was made of the district map of 1911, the economic map of 1950 and the property map of 2011. The measurements show that the municipality has grown with 46,3 km2 over the last one hundred years. New neighborhoods? have emerged and the municipality has expanded.

Climate and environmental issues is now high on the agenda. We live in a generation that must try to solve some major environmental problems. Buildings and habitations account for approximately 40 % of Sweden's total energy today. To reduce this figure, as needed, more research in the field of energy efficiency is required.This thesis concerns the heating of buildings. The load on district heating is heavy during certain times of the day.

This master of science thesis intends to examine how the established innovation theoriesinteracts with the social and cultural phenomena arising from the reduction in communicationcosts as a result of the development of the internet.The aim is to present a knowledge inventory of attitudes to and experiences of an openapproach, with emphasis on collaborative innovation, in product and service developmentdriven companies in different fields. The studied theories and the empirical results forms thebasis for an analysis of how companies can benefit from the diversified knowledge that existsoutside their borders as well as an exploration of the potential for this kind of knowledgeexchange to act as a catalyst for innovation.The theoretical part of the study is based essentially on two tracks: (1) innovation theories witha focus onopen innovation and user innovation, and (2) a broad review of how theories ofdiversified knowledgeand collective intelligence has become possible to apply in an innovationcontext. The empirical part of the study is based on material obtained from semi-structuredinterviews with respondents from six companies.The results show that companies have implemented unstructured innovation initiatives withoutany formal links to the structured product development processes, which are part of thecompanies core activities. The main conclusions include the following insights: There is a needfor structured links between the unstructured initiatives and the core activities, which makes itpossible to take promising ideas to market. The companies also have to lose some control of theunstructured initiatives; consequently it is impossible to pinpoint what the outcome will be.

This master thesis investigates quality procedures and measuring of solid carbide end mills, with the main focus on measuring equipment. The thesis has been written in collaboration with a special production department for solid carbide end mills at Sandvik Coromant in Gimo. The department?s needs and constraints have been the foundation of the project and the main research question is: how to measure end mills in order to ensure good quality of the produced end mills. The project has contained both a theoretical study consisting of a literature review and practical studies in the workshop with the objective to identify an end mill?s main parameters and the relationship between an end mill?s geometry and the manufacturing processes.

The main purpose of this essay is to investigate if Latvia´s pattern of trade has become more similar to the mature market economies, after Latvia´s independence 1991.Today, the intra-industry trade (IIT) dominates the trade of mature market economies. One of the pioneers of intra-industrial trade is Paul Krugman, who was the first to emphasize the importance "of scale and consumers' desire for variety" in explaining the basis for modern commerce. Customers get more variety and usually cheaper goods when the market gets bigger. I mainly use the modern trade theories to explain the trade pattern in Latvia. To measure how Latvia has developed its intra-industry trade, and thereby is approaching the mature market economies´ trade pattern, I use the Grubel-Lloyd index (GL-index).

AbstractPurpose ? The purpose of this study is to investigate possible reasons for long lead-time in a customer driven production, and how the lead-time can be reduced. To fulfil the purpose the study has been broken down into two questions.1. Whichfactorsaffectthelead-timeinacustomer-drivenproduction?2.

Phosphorus is the single most potent contributor to eutrophication of freshwater and has also been shown to contribute to the toxic algae blooms in the Baltic sea. The dynamics and paths of losses of phosphorus from arable lands are not fully understood. It is known that phosphorus can be lost directly from plant material to water. In studies where plant material has been subjected to several freeze-thaw cycles, large amounts of phosphorus have been lost. Most studies have been conducted under field conditions, with many factors effecting the measured losses of phosphorus, such as weather and type of soil. This study was performed in a controlled environment without the presence of soil. Instead of soil, small glass beads were mixed with the plant materials in vessels, to make possible homogeneous leaching with water through the mixture of glass beads and plant materials. In this study, clover, ryegrass and dry straw were cut to pieces, approximately 2 cm long.

Food is widely consumed and in 2011 an average American devoured approximately one ton of food. The production of these goods requires large amounts of energy and contributes to 22-31 % of all greenhouse gas emissions occurring in Europe. More than one third of the produced food is discarded instead of consumed, and food waste make up about 30 % of the waste generated by households. 60 % of this food waste could be avoided if the eatables were handled in a better way.Avoidable food waste arises partly because residues from food are not taken care of, and because the food is not stored in a way that optimise its durability. Residues arises part- ly because of the contradictory and complex demands of everyday life and are, because of our busy lifestyle, difficult to avoid.

Skärgårdsstiftelsen, which is responsible for several of the archipelago islands in Stockholm, has chosen to explore the possibilities for more sustainable heating systems in buildings on the islands in collaboration with KTH. A reduction of energy use and improving the efficiency of existing heating systems are included as part of the environmental work. This report studies the island of Grinda, which is located outside the area of Vaxholm in Stockholm. The study area consists of a guesthouse consisting of a restaurant as well as conference facilities and four neighboring cottages used for overnighting. The cottages now run solely on direct electricity, both for heating and hot water.

Climate and environmental issues is now high on the agenda. We live in a generation that must try to solve some major environmental problems. Buildings and habitations account for approximately 40 % of Sweden's total energy today. To reduce this figure, as needed, more research in the field of energy efficiency is required.This thesis concerns the heating of buildings. The load on district heating is heavy during certain times of the day.

Föreliggande rapport är ett resultat av ett examensarbete utfört på Lulekraft AB (LUKAB), med syftet att dimensionera en återföring av rökgas. Målen är att sänka utsläppen av NOx, att minska fluktuationerna av temperaturen i överhettarna vid bränslebyte samt att undersöka ifall verkningsgraden ökar med implementerad rökgasåterföring.Ett flertal olika sätt att reducera utsläppen av NOx finns grundligt beskrivna i litteraturen, såväl i rökgasflödet som av modifikation av brännarna. Åtgärder i rökgasflödet är t.ex. rökgasåterföring (FGR, flue gas recirculation) och selektiv katalytisk reduktion (SCR, selecive catalytic reduction). Rökgasåterföringen sänker temperaturen på flamman, vilket leder till en sänkning av bildningen av termisk NOx.

Västerländsk mindfulnessmeditation har sina rötter i tusenårig buddhistisk tradition, främst genom vipassana- och zentraditionerna. Senaste tiden har mindfulness ökat i popularitet och blivit en accepterad klinisk metod i former som mindfulness based stress reduction. Möjligheten att undersöka dess effekter genom neurovetenskapliga metoder bidrar med intressant och viktig forskning om mänskligt välbefinnande. Dock har tidigare studier visat på bristande samstämmighet vad gäller resultat och metod. Uppsatsen är en litteraturstudie där det huvudsakliga syftet är att utifrån nyare studier undersöka de tydligaste effekterna på hjärnfunktion och struktur av långvarigt praktiserande av mindfulness utifrån vipassana- och zenmeditation.

The production of ferrochromium alloys at Vargön Alloys AB contributes to formation of unwanted ferrochromium dust, which contains toxic Cr(VI). The dust is since summer 2005 treated with an iron-sulphate solution to reduce Cr(VI) to the non-toxic Cr(III). A year later the treatment technique was improved and disposal occurs in cells on the landfill. The cells can be up to 300 m3 and the edges can be made out of fro example concrete. Tests are conducted on the treated dust when it is disposed.

Jag har under detta arbete undersökt hur företaget MAD ELF ART kan arbeta med miljö och sociala aspekter i produktionen. Min uppgift har varit att lokalisera en materialleverantör och producent som kan arbeta med detta på bästa sätt.Under arbetets gång har jag kontaktat flera materialleverantörer och producenter och undersökt hur de jobbar med dessa aspekter. Samtidigt har jag även fördjupat mig i hur man kan ta hänsyn till miljö och sociala aspekter i produktionen, för att undersöka hur vi bäst kan arbeta med det.Vad jag kommit fram till är att materialvalet är det viktigaste och det som skiljer en produkt från att vara en miljöbov och en fara för människor till miljövänlig. Därför har jag i bilagan presenterat en leverantör och producent av materialet 100% silke som är ekologiskt färgad och handvävd. Silke lämnar inget energi-fotavtryck och går att återvinna.