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575 Uppsatser om Steel eco-cycle - Sida 33 av 39
Honlig reproduktionsfysiologi hos lodjur (Lynx lynx)
Knowledge in reproduction in the Swedish lynx (Lynx lynx) is important forseveral reasons. Situated on top of the food chain, lynxes may be at risk of beingexposed to environmental toxins that could have adverse effect on reproduction.The population of lynxes is today managed by restricted hunting which demandsknowledge about both the lynxes numbers and their reproduction. In addition,lynxes may function as indicators of climate change for instance if their season ofheat would be earlier or prolonged due to a warmer climate. Today?s knowledgein reproduction in Swedish lynx is mainly based on information gathered fromradio collared animals.
Svenskt venture capital och dess lönsamhet - i ett internationellt perspektiv
In this thesis, the Swedish venture capital market and its profitability is analyzed. Venture capital is defined as capital that is invested in the early stages of a company's life cycle, in the two investment stages seed/start-up and expansion.A common view is that the profitability of Swedish venture capital has not been, is not and will probably not become high either. With this in mind, we try to answer to the following questions in this thesis:? What has the profitability of Swedish venture capital actually been historically?? Which reasons could be found in order to explain the historical returns for Swedish venture capital, and which factors has been identified in international comparative studies between venture capital markets?In order to answer these questions, data showing historical returns for the Swedish, European and American venture capital market has been gathered, an extensive literature study has been performed, and three interviews with participants from the Swedish venture capital market has been conducted.We conclude that the historical returns of Swedish venture capital is in line with the general view that they have been low. We also see a trend where Swedish venture capital funds that are not specialized in one investment stage generate lower returns than more specialized funds.
Förändrade konkurrensstrategier vid branschutvidgning : En jämförande undersökning av tre hotell i Stockholms innerstad
People in Sweden and in Europe have been traveling a lot more lately. Because of the economic boom that has been in a lot of countries people do have more money to spend. Sweden and especially Stockholm has lately become a very popular destination. Also big congresses and business meetings like to choose Stockholm for their meetings. The capital as it looks today does not have the capacity to let all those people stay at the hotels at the same time.
Förändrade konkurrensstrategier vid branschutvidgning : En jämförande undersökning av tre hotell i Stockholms innerstad
People in Sweden and in Europe have been traveling a lot more lately. Because of the economic boom that has been in a lot of countries people do have more money to spend. Sweden and especially Stockholm has lately become a very popular destination. Also big congresses and business meetings like to choose Stockholm for their meetings. The capital as it looks today does not have the capacity to let all those people stay at the hotels at the same time.
En branschanalys av den svenska mobilmarknaden -Strategi, konkurrenssituationen och 4G:s påverkan
Background and problemThe Swedish mobile market is highly competitive despite the oligopoly that currently exists. A short product life cycle together with fads and new innovations puts pressure on the operators to respond to the ever changing environment and to develop and adapt their strategies after it.As a previous study regarding a specific operator?s strategy was cancelled due to the extensive confidentiality surrounding it, an interest was sparked to perform an industry analysis as this is clearly something the actors spend a great deal of time on developing. The launch of the 4G network will offer new opportunities for the operators regarding products services. It may also impact the competition on the overall market.PurposeThe purpose of this thesis is to present a deep analysis of the industry and give the reader a comprehensive picture of existing conditions.
CFD simulering av en fyrtakts Otto motorcykel motor
This thesis deals with the numerical 3D simulation of a four stroke, spark-ignited, internalcombustion engine, which is mounted on a high performance motorcycle. The work, carried outin collaboration with Politecnico di Milano and MV Agusta, focuses on the simulation of theintake, compression and expansion stroke, including combustion simulation, using an opensource CFD code.Simulation of internal combustion engines offers a great challenge in the field of CFD research.Moving boundaries of the solution domain, caused by the motion of the piston and valves, leadsto deformation of the computational grid, with decreasing quality of the solution as result. Basedon this, a previously developed mesh motion strategy was employed where a number of meshesare used to cover the whole simulation cycle. Within each mesh interval the internal cell pointsof the mesh are moved to account for the boundary motion of the piston and valves. This strategywas previously applied to simplified geometries as well as real engine geometries.
Kundanpassad LCA för nätverkskameror
Antalet övervakningskameror i samhället ökar, samtidigt som deras miljöpåverkan är relativt okänd. För en produkt som tidigare bara utvärderats gällande prestanda, börjar kunderna nu efterfråga en kartläggning av miljöpåverkan. Kamerans miljöpåverkan studeras ur ett livscykelperspektiv: energi- och materialtillförsel samt utsläpp och avfall som berör allt ifrån råmaterialutvinning till slutåtervinning. Projektet är genomfört på begäran av, och för, Axis Communications AB (härmed refererade till som Axis) med huvudsyfte att öka Axis kunskap om deras produkters miljöpåverkan och utveckla en metod för genomförande av förenklade livscykelanalyser på Axis produkter. Livscykelanalysen, LCA, genomförs på en nätverkskamera utvecklad av Axis Communications AB; modell AXIS Q6032-E PTZ.
Dimensionering av bladförband på Kamewa CPP (Controllable Pitch Propeller)
The thesis project is accomplished during winter and spring 2008 at Karlstad University at the faculty of technology and science. The tutor at Karlstad University is Nils Hallbäck and the examiner is Hans Johansson. Rolls-Royce at Kristinehamn in Sweden is the initiator for the project. The thesis project title is design of the blade bolt joint on Kamewa CPP. CPP stands for controllable pitch propeller.
Mobiltelefon utformad med EcoDesign
The environmental demands are increasing when it comes to product development. EcoDesign isabout minimizing the environmental impact of a product, considering the entire life cycle of it,without compromising other qualities like function or cost. In this master of science thesis amobile phone has been analysed with Ten Golden Rules in EcoDesign regarding production, useand End of Life. Also a functional and an environmental profile were made. The goal was tomake a new concept phone, based on the previous analysis, which communicates userfriendlinessand sustainable development.
The Effects of Technology-Based Self-Service on Grocery Retail : A Swedish Case
Technology based self-service (TBSS) used in supermarket self-scanning checkouts is a relatively new phenomenon in Sweden. Studies on TBSS as a self- checkout device have been formerly carried out but with focus on the customer perspective. The authors therefore saw a challenge in covering the self-scan checkout concept, from a company perspective. The purpose of this research paper is to investigate, through a management perspective, the changes brought about by implementing an innovative TBSS system in Swedish supermarkets, and its effect on the competitiveness of the company. This is done by presenting and linking the theoretical framework and empirical study in the research.
Från förslagsverksamhet till systematiskt förbättringsarbete
Detta examensarbete är utfört på Smurfit Kappa Kraftliner i Piteå i ett försök att hjälpa företaget att följa med i den snabba teknologiska tillväxttakt som råder inom pappersindustrin idag. Företagets gamla förslagsverksamhet innehöll brister i belöningssystem och motivationsfaktorer som gjorde att ledningen motarbetade förslag för att de ansåg belöningen vara för stor. Smurfit har sedan de köpte bort det gamla systemet arbetat för att ta fram ett nytt system, som innefattar klara och tydliga riktlinjer samt ett belöningssystem som uppmuntrar hela företaget istället för att tillföra en dålig stämning som fallet varit. Smurfit är kvalitetscertifierade enligt ISO 9001:2000 och måste ha en fungerande förslagsverksamhet för att uppfylla samtliga kriterier. Syftet med detta examensarbete är att ta fram och belysa vissa faktorer som är kritiska för att en förslagsverksamhet ska fungera.
Inverkan av MgO på ljusbågsugnsslaggens lakningsegenskaper
Ovako Steel AB i Hofors producerar ca 450 000 ton låglegerat stål varje år i en skrotbaserad process. Vid tillverkningen bildas årligen stora tonnage biprodukter som i stor utsträckning deponeras. För att minska andelen deponerat material finns planer på att använda slaggen som vägmaterial. Målet med detta examensarbete har varit att utreda hur egenskaperna hos ljusbågsugnsslagg med avseende på vägbyggnadstillämpningar kan förväntas ändra sig om den nuvarande slaggbildaren kalk delvis byts ut mot dolomit. Tanken att byta slaggbildare till dolomit kommer av att slaggen då får bättre skumningsegenskaper vilket påverkar infodringsslitaget och elförbrukningen positivt.
Beredning av köldbärare för komfortändamål i kontorsverksamhet : En studie i produktionsslag
The real estate company Ihus is facing an expansion of its comfort cooling in Noatun,Uppsala, to provide the buildings in the block with cooling. The buildings in Noatunare mainly used for office premises, where the requirements for an accepted indoorclimate is great. However, it?s uncertain whether Ihus should continue, as currently,producing comfort cooling by themselves using a compressor chiller, or if they shouldconnect themselves to Vattenfall?s district cooling net.The purpose of this report is to examine which technique of cooling is best suited forIhus and their buildings in Noatun. It should also work as a guideline for othercompanies facing the same problem as Ihus.
Produktivitet vid selektiv mekaniserad bioenergiröjning av eftersatta röjningsbestånd :
In Sweden, harvesting pre-commercial thinning (PCT) stems for energy purposes is a interesting way of financing the high cost of preparing dense stands for a profitable first conventional thinning. This concept can be labelled bioenergy thinning.
The aim of this study was to quantify the productivity of a Vimek 404R light harvester with an accumulating Naarva-Grip cutting head during the bioenergy thinning of a self-regenerated stand west of Sunnansjö in Dalarna. The stand was birch-dominated, contained 15 371 stems/ha, and measured on average 4,6 cm Dbh and 7 m tall. Even though the driver was well experienced with the machine, the stand in question was the first one that he ever thinned in this manner. Nevertheless, the driver strived to accumulate as many stems as possible during each crane cycle and chose to cut taller stems in half so as to make the handling and forwarding of the harvested stems easier.
Det är aldrig för tidigt att bostadsspara : En studie över sparandet inför inträdelsen på bostadsmarknaden
Syfte: Syftet med studien a?r att analysera yngre vuxna i Stockholms sparbeteende info?r inträdelsen på bostadsmarknaden utifrån livscykelhyoptesen.Teori: Den främsta teoritillämpningen fo?r studien är livscykelhypotes om människans generella och rationella sparbeteende. Även Maslows behovshierarki behandlas då den angriper det social- psykologiska perspektivet angående behovet av att ha en bostad och Behavioral Finance angriper andra yttre faktorer som kan påverka huruvida en ma?nniska sparar eller inte.Metod: Studiens metodansats besta?r av en metodkombination, detta innefattar en enka?tunderso?kning med svarsalternativ som skedde inom Stockholmsomra?det. Det innefattar a?ven tre intervjuer med etablerade experter inom studiens omra?de.