Sökresultat:
2035 Uppsatser om Efficiency rate - Sida 44 av 136
Att genom design effektivisera räddningsinsatsen för motorcyklister i trafikolycka
What if the emergency response directly knew exactly where to go and what to do if a road accident occured? During the last ten years the number of motorcyclists in Sweden has doubled. Every year, more than 300 riders are seriously injured and over 40 die in road accidents. Being found in time is critical to increase the chance of survival. The goal of this project is to use design methods to find a solution that enables a fast and adequate emergency response for motorcyclists and other unprotected road users..
Befolkningstillväxtens mosaik i Umeå kommun
The purpose of this thesis is to present and analyze population developments within Umeå municipality during the period 1992 to 2012. The study also aims to discuss growth trends presented in previous papers to seek common factors and get a deeper understanding.Data for 1992, 2002 and 2012 on a sub area level supplied by Umeå municipality was used. The study shows a continued positive development across almost all sub areas, but a differing growth rate from centre to periphery, and also a diversified medium age among the inhabitants.While the city center continues to have the highest growth of population during the studied years, a recent trend seems to point to a growing popularity to settle in the outskirts of the municipality, primarily near the coast..
Energieffektivisering av Villor : Finns möjligheten till Passivhusstandard för befintliga bostäder
The climate change the earth today has to face is no longer a global problem when every individual has a responsibility to act. The residents in Sweden have no understanding how their energy consumption affects the environment, nor what measures can be taken to reduce the energy consumption.The use of the energy in new Buildings is considerably lower than in the older ones as conditions have improved and the requirements have been more stringent. As most of the buildings in the future have already been constructed it´s important to take every opportunity for energy efficiency and rebuilding of available buildings will become a significant act. Reconstruction of a building contributes generally to both a reduced individual and a reduced total energy use, while new constructions only keep a low individual energy use but a increase the total energy use. For this reason we present the opportunities for reconstruction, mainly to reach the standards for a passive house..
Omloppstid för returenheter
Cycle time has a direct influence on number of returnable crates needed and therefore a crucial parameter for cost structure and pricing of the user fec in the pool system.For providing the growing market, number of crates has to increase as well as the utilization of existing crates. To accomplish this aim, cycle time for the whole supply chain has to be fully unravelled and understand.The purpose is to map cycle time and stock movements, to see how, where and when crates are being used in the supply chain. The goal is to make a method of cycle time calculation, together with suggestions of improving the pool system and decrease cycle time.The study has been a combination of qualitative and quantitative research and comprises the three biggest wholesalers in Sweden; ICA, Coop and Axfood. Furthermore have 65 grocery shops, connected to the wholesalers, been investigated and mapped.The study has come to a conclusion that cycle time for an average returnable crate is 19 days. The full-size and half-size crates have a bit longer cycle time, 21-22 days, while Dual Height-crates and shallow haif-size crates have 17-18 days.
Ökad användning av biodrivmedel i vägtransportsektorn : en styrmedelsanalys
The Swedish road transport sector relies almost completely on fossil fuels. In 2007, as much as 96 percent of the total sales of fuels was made up of petrol and diesel, while at the same time the share of total emissions of greenhouse gases in Sweden that came from road transports amounted to close to 30 per cent. Sweden is by no means worse off than any other European country in these respects. In order to address the questions of high oil dependence and CO2 emissions the European Commission has proposed a reinforcement of the legislative framework, with a 10 percent minimum for the market share of biofuels in 2020. Furthermore, the proposed target is binding for the member states, unlike the current voluntary target of 5.75 percent by 2010.
More than doubling the usage of biofuels in only a bit more than a decade will most likely not be possible without policy interventions.
Förebyggande Brounderhåll
AbstractThe Swedish Road Administration in the region of Mälardalen has since 2004 worked to in¬crease the efficiency of the maintance of bridges based on limited functional requirements and time demanded action.The maintenance of the bridges is contracted in the county of Uppsala since 2004, and Örebro since 2007. The county of Nyköping and Västerås is contracted by the traditional system. The contractor will perform a regular maintenance on all bridges. The bridges are inspected by the contractor at least once every year.The contractor registers the result of the inspection in a database called BaTMan. BaTMan is a Bridge and Tunnel Management system and is a strictly web solution were the user logs in via the internet.The Swedish Road Administration also inspects the bridges to se that the demands on the bridges are followed.My work is to compare these different inspections and to see any development..
Lantbrukarens inställning till skuldsättning och val av kreditinstitut : en fallstudie av expansiva lantbruksföretag
The agricultural sector is characterized by larger crop farms and more extensive livestockproduction. The efficiency improvement is partly a result from a stronger competition in theglobal market. The agricultural products need to be produced at a lower cost than competitorsin order to survive as a farmer. The solution is larger firms that benefit from economies ofscale. This brings large investments that create a greater need for leverage and closer relationto the credit agency.
Flygplansavisningens miljöpåverkan vid svenska flygplatser
The aim of this thesis was to answer a number of questions about the environmental consequences of aircraft de-icing. A further aim was to suggest how the environmental consequences due to the release of de-icing fluids can be measured and reduced.The main impact of the aircraft de-icing on the environment is due to the large oxygen demand for the degradation of glycol based de-icing fluids which are released in the environment. The effect of the increase in oxygen demand depends on where the degradation occurs in the ecosystem. In a sensitive ecosystem, the large demand of oxygen could provide an anaerobic environment which would be harmful for many types of organisms.In order to reduce the negative effects of the applied de-icing fluid, there is some type of collection system at every regular airport in Sweden. The methods of collection can be divided into two general groups, hydrological isolation or vacuum sweeper trucks.
Biogaspotential vid samrötningav mikroalger och blandslam från Västerås kommunala reningsverk
Because of the increasing trends in energy consumption and increased environmental awareness, greater focus has been placed on improvement and development of renewable energy sources. An already proven and accepted method is biogas production from anaerobic digestion at municipal wastewater treatment plants.In the waste water treatment process solid material and dissolved pollutants are separated from the water, forming a sludge. The sludge is separated from the process and stabilized during anaerobic digestion or aerobic aeration. Most often, mesophilic anaerobic digestion is used. Because of degradation by microorganisms, biogas with a high content of methane is formed during the digestion.
Motviktsslungans dynamik : En analys av medeltida konstruktionsråd för mekaniskt artilleri
AbstractThis Master?s thesis analyses the dynamics of the medieval counterweight lever engine, ortrebuchet, a type of mechanical artillery. The purpose is to study the differences between different types of these machines, and see if computer simulations can be used to validate preserved advice on construction. Simulations include machines with a fixed counterweight, a hinged counterweight and a combination of both counterweights.Due to the almost complete lack of archaeological finds and insufficient historical source material there are still, after more than a century of research, many unanswered questions concerning the design and performance of these machines.The present study is based on an analysis by Jahsman (2004). A more detailed mathematical model employing Coulomb-friction is used.
Volatiliteten som hjälpmedel vid teknisk anals
Den 1 juli 2007 infördes en ny lag till byggbranschen som innebär att handel av byggtjänster numera ska behandlas med omvänd skattskyldighet. Därav ska inte längre säljare av byggtjänster redovisa moms på sina utgående fakturor utan säljaren ska redovisa både in- och utgående moms. Orsaken bakom laginförandet är den mängd momsfusk som uppmärksammats där säljare av byggtjänster fått inbetalt moms för sina tjänster men inte redovisat den vidare till Skatteverket utan behållt den i egen ficka. Vår uppsats har beskrivit de olika positiva respektive negativa följder laginförandet har medfört..
Effektivisering av klimatskärm : a?tga?rdsfo?rslag fo?r bostadsfo?reningen Stocken
This study explores Environmental Storytelling techniques and whether these can beused in combination with each other to lead a player through a game scene in aspecific pattern, affect the player?s narrative and exploratory view and explorewhether Self-paced Exploration can be combined with these techniques.It is a qualitative study conducted by six gaming sessions with accompanyinginterviews in which six people get to play one of three versions of the same gamescene. The only differences between the scenes are the different guidance techniquesused. The informants' movement patterns are identified and interviews recorded byaudio, as well as screen recording. The results shows that Environmental Storytellingtechniques can very well be used to control the player's exploration patterns, bothnarratively and navigation purposes and Self-paced Exploration can be utilized to agreater efficiency in combination with these..
Metod för analys av elförbrukning i hushåll
Warehouses are a key aspect of modern supply chains and play a vital role in the success or failure of businesses today. Figures from the USA indicate that the capital- and operating costs of warehouses represent about 22 % of a company?s logistics costs while figures from Europe indicate 25 % (Baker & Canessa, 2009). Because warehousing is such an important function within a company, the authors chose to focus on this in their thesis. The purpose of this thesis has been to examine the significance of a Warehouse Management System (WMS) and item identification with attention to logistic efficiency.
Banväljare till livsmedelsindustrin
This report is about the issue with decreasing production rate mainly caused by failuresrelated to the multiswitch. The multiswitch is a machine at Gefleortens Mejeriföreningwhich has the function of distributing milk cartons from one incoming track into fiveoutgoing tracks. Milk cartons who gets stuck and there by causes the production to stop,is the mainly problem with this constructionThe purpose with this report is to understand the causing factors and make suggestions which can help solving these factors. By analyzing the machine during production, having contact with different suppliers, searching internet for information, 3d-cad drawings and the complementary with personal experiences, this machine has been evaluated and as a result of this new problem has come to be known.The discovered problems was analyzed and resulted in new suggestions for alternative options. Later the most functional results was chosen and put as a suggestion for the new model.A new machine built with the suggestions from this report assures to be well adapted to the environment at Gefleortens Mejeriföreing and the problems it causes..
Vindkraftens framtida scenarier
In several countries that have been early in the development of wind farms, there is today a second hand market for the used wind turbines. The European Union (EU) has established a waste hierarchy in order to minimize throwaway mentality. The second hand market is a part of this as the steps are to minimize, reuse, recycle, extract energy and landfill.In order to promote the development of renewable energy, there are energy certificates for the producers that provide it, wind power being one type of renewable energy. After 15 years the energy certificates for a specific wind turbine are no longer paid, and after that there are several different scenarios for the wind turbine. The scenarios investigated in this bachelor?s thesis are export of the wind turbine to countries that are not as far along as Sweden in their development towards renewable energy, selling in Sweden to individuals, and recycling of the wind turbine, as it mostly consists of metals and therefore is recyclable.