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1418 Uppsatser om Mass flow - Sida 57 av 95
Lätta bromsok
SAAB Automobile ABis a car manufacturer within General Motors corporate group. SAABAutomobile ABhas a big part of the responsibility for the brake development in the corporategroup. The car industry is facing harder environmental requirements, which influence the brakedevelopment. The focus is to develop brakes with low drag and sustained brake feeling andperformance. Important characters for the brake caliper are high stiffness and low weight, highstiffness results in high performance and low weight is important because it is unsprung mass.This thesis investigates the possibility to improve the performance of the brake caliper for aGMproject.
Energioptimering : Resteffektkylning av mellanlager för använt kärnbränsle (CLAB) Oskarshamn
This thesis is done in cooperation with SWECO Energuide in Växjö. They have been assigned by SKB in Oskarshamn to renew their electrical power supply and the ancillary processing systems in their Central provisional storage of spent nuclear fuel, CLAB. Today in the CLAB facility, the spent fuel is cooled down with water pumps, driven by asynchronous induction motors, where the water is regulated by mechanical valves to the desired flow. After the upgrade, the engines will be powered by AC drives that can control the pumps by changing the rotational speed and thus change the water's cooling effect on the nuclear fuel. In this study, I investigated the interference AC drives causes the feeding network and how to go about averting them.
Framtidens avloppsvattenreningsverk ? en modern energiproducent : En fallstudie av Himmerfja?rdsverket
In a sustainable society the use of renewable energy and recycling of materials is of high importance. Wastewater treatment plants use large amounts of energy in the processing of wastewater. This study seeks to evaluate wastewater as an energy resource and to examine treatment plants potential to become sustainable energy producers. The study is based upon the internal processes of Himmerfja?rdsverket.
Bayesiansk klassificering av ursprung för fångster av sill
Sammanfattning I september 2008 fångades 311 juveniler (unga individer) av arten sill (Clupea harengus) in vid fyra olika områden på den svenska västkusten; Råssö, Hunnebo, Askerö- och Gullmarfjorden. Genetiska, kemiska och morfologiska data (längd och vikt) samlades in i syfte att bestämma vilka populationer de härstammade ifrån. Fångster av sill är så gott som alltid av blandat ursprung eftersom individer bara samlas i de populationer de stammar ifrån vid den tid på året då det är dags för parning (lek). I den här uppsatsen klassificerar jag juvenilerna till tre regioner i vilka populationerna ingår, genom att jämföra de data som samlats in från juvenilerna med motsvarande data i en stor databas över populationer i Nordsjön, Skagerrak, Kattegat och Östersjön samt med ytterligare en population, Risør, som inte ingår i denna databas. Data om populationerna kommer från samples och de sanna populationsparametrarna (dvs.
Activity patterns of snow leopards (Panthera uncia) at their kill sites
The snow leopard (Panthera uncia) is an elusive felid, native to the mountains in central Asia. Basic knowledge about the snow leopards? ecology has long been lacking but is advancing with the help of the GPS-technology. GPS cluster analysis can provide insight in the diet and prey selection of elusive predators, such as the snow leopard. Acceleration data from GPS collars can be used to study animal behavior but the two have never been combined to gain more detailed information of the feeding behavior of large carnivores.
Erikjansarna : Brev från Amerika- en identitet i förändring 1848-1866
Syftet med studien var att undersöka idrottsutövares musikanvändande. Studien genomfördes i form av en enkätundersökning med kvalitativa och kvantitativa frågor där 252 idrottsutövare som utövar individuell idrott som till exempel friidrott och orientering deltog. Enkäten berörde frågor om idrottsutövarnas musikanvändande i vardagliga och idrottsliga situationer, känsloupplevelser i samband med musiklyssnande samt motiv till musikanvändning i idrottsutövandet. Resultatet visade att deltagarna medvetet använder musik för att påverka olika känslotillstånd i sitt idrottsutövande. Främst använder deltagarna musik i sin tävlingsförberedelse.
Feedback och hälsa : en studie hos ett statligt verk
Today, many discussions are taking place through different platforms concerning the huge problem of ill health within modern society. Ill health tends to affect both children and adults. For the adult sector ill health may lead to doctor?s notification of illness in the short term and on the long term permanent disability benefit. In the mass media there are often articles published that point out the rising number of people with sick pay and people being given permanent disability benefit.
Från önskemål till bedömda behov inom äldreomsorgen
AbstractThe purpose with this essay has been to gain a greater understanding and clarify how an arena can create value within place marketing and development of a place brand. This will be achieved through a description of which values an arena causes in the surrounding areas and an understanding of how these values can be interpreted through the place brand. We decided to base our study according to the following two questions:1. What are the underlying reasons why there has been such a big trend with arena project?2.
"Homo sacer" i det svenska folkhemmet En fallstudie av rädslans politik och det konstanta undantaget från den konstitutionella ordningen i den svenska kontexten
This case study is an attempt to give empirical support to Georgio Agambens theory, regarding how the exceptions from the constitutional order should be regarded as a constant element in modern societies. The purpose was to investigate if Agambens theory is valid in the Swedish context. The exception, as definied by Agamben, is a reappearing phenomenon, which implies that the constitutional order is fragile. Individuals and groups are transferred into ?homo sacers?, meaning people that is to be regarded as legally naked, and offset from the rest of society.What then is it that make the legal norms fragile? In this thesis I will discuss the causality of moral panic.
Kartläggning av informationsbehov
This report is the result of a thesis carried out during the spring of 2010 at Sandvik Coromant in Gimo. The purpose of this thesis has been to make an inventory and mapping of information used by flow groups that are most relevant for the day-to-day work. This mapping will then form the basis for information supplied by an automated system.The project consisted of:Identifying how the information is supplied today.Inquiring into the needs of an automated system.Which needs of information that will be provided by the system.Data collection occurred in two ways, both through observations and interviews. Observations of the participants were carried out early in the thesis, where the aim was to create a picture of the problem, and gradually develop a basis for the actual interview study. At each observation, an unstructured observation was used, which means that all activity was recorded.
Projektledning & Kreativitet
För att finansiell rapportering ska ge läsaren en så klar bild som möjligt krävs en viss grad av harmonisering och upprättande av redovisningsstandards. Risken blir annars att redovisningen inte blir jämförbar och transparent. I december 2001 kom Redovisningsrådets Akutgrupp med ett uttalande som sa att koncernbidraget ska redovisas efter ekonomisk innebörd istället för, som tidigare, en bokslutsdisposition i resultaträkningen. Det problem som då uppstod var hur de företag som följde, och följer, Bokföringsnämnden skulle göra. Därför har Bokföringsnämnden under 2006 och 2007 skickat ut remisser med förslag på hur koncernbidraget i framtiden ska redovisas.
Analys av off-design prestanda för ett absorptionskylsystem
This master thesis project at KTH is performed in the Mechanical and Aerospace Engineeringdepartment at University of Florida (UF). The thesis is a small part of a gas turbine researchproject where a vapour absorption refrigeration system (VARS) and a high pressure regenerativeturbine engine (HPRTE) are integrated together. The main objective is to build a computermodel of the VARS. The computer model is supposed to be used to analyse the off-designperformance of the VARS and should also be easy to integrate as a subroutine in a more complexsystem model. To model the VARS some knowledge of the absorbent/refrigerant mixture had tobe well known, in this case a mixture of ammonia and water.
Ett flervariabelt feldetekteringssystem för övervakning av bärlagertemperaturen i vattenkraftturbiner
The purpose of this thesis work was to develop an automatic fault detection system for surveillance of bearing temperature in hydropower turbines. The parameters used except the bearing temperature were cooling water temperature and cooling water flow. A simple static model based on data sampled every minute was developed to estimate the bearing temperature. Then a detector for detection of change in bearing temperature based on the CUSUM-algorithm was designed. Since the amount of data was very small the developed model was too uncertain to be used in a working system.The designed fault detection system showed to work well for the available data.
EFFEKTIVISERING AV DELMOMENT I PROCESSKARTLÄGGNING
Den här C-uppsatsen har gått ut på att göra en processkartläggning på återuppbyggnaden av Vivallaskolans bollhall som har brunnit ner under slutet av oktober 2010. Utifrån processkartläggningen har det gjorts analyser och observationer på aktivitetsflödet. Där framgår det vad som har gått bra och mindre bra. Till det som har gått mindre bra har förslag till lösningar tagits fram. I dessa lösningar ingår metoderna: PDCA (s.21), BIM (s.21) och Ishikawadiagram (s.21), som tydligt visar förbättringsåtgärder.Processkartläggningen och lösningsförslagen har tagits fram utifrån observationer i form av besök på arbetsplatsen samt läsning av litteratur och elektroniska källor.
AP7 och fyra storbankers Sverige- och Östeuropafonder : En riskjusterad utvärdering 2003-2009
AbstractThe purpose with this essay has been to gain a greater understanding and clarify how an arena can create value within place marketing and development of a place brand. This will be achieved through a description of which values an arena causes in the surrounding areas and an understanding of how these values can be interpreted through the place brand. We decided to base our study according to the following two questions:1. What are the underlying reasons why there has been such a big trend with arena project?2.