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890 Uppsatser om Ground Estimation - Sida 20 av 60
Quartzene i gips : Densitet och hållfasthet
A substation must be properly protected against lightning and other external effects to the equipment in the station or staff, for that we use relay protection. They should also protect against internal errors which may occur as ground faults. There are different types of protection relays, but most common are overcurrent-, distance-, residual current- and differential protection.The purpose of this thesis was to deepen our knowledge of relay protection and to use the theoretical knowledge we got from the university studies in the work process. In the process we discovered which parameters were the most essential and calculated these for all relay protections on the substation. We also carry out a comparison between two brands of relay protection, ABB and Alstom.During our work we will test and simulate the over-current relays in a program called NEPLAN, the program will also calculate the fault currents.
Barns upplevelser av högläsning och boksamtal
What drove me to write this paper is the will to examine if there is a philosophically and scientifically viable alternative foundation for an objective morality other than what we like to refer to as "God". The American philosopher and neuroscientist Sam Harris presents in his book The Moral Landscape a thesis for an objective morality based on science in which he states that science can determine human values. The purpose of this paper is to perform a theoretical trial of The Moral Landscape, examining Harris' thesis and it's relations to the philosophical obstacles that stands in its way, these being mainly the famous philosophical principle "Hume's Law" and G.E. Moore's "Naturalistic Fallacy and Open Question Argument" and thus will serve as my main theoretical foundation. The results of my study was not conclusive since Harris in fact doesn't succeed in bridging the gap between facts and values on a scientific ground.
Hunter demography, trends and correlates of hunting participation in Sweden
The concerning issue of declining number of hunters in North America is also apparent in Europe and Sweden. When the bulk of research found on human dimensions and hunting participation has almost exclusively been done in the United States, this report seeks to add to the needed knowledge on a national level focusing on the causes of hunter declines related to social factors within Sweden. Using hunter data reaching from commune, county to National level, this report describes the correlation between a number of variables and the hunting participation in Sweden.The typical Swedish hunter lives in an area with low population density, the person usually has higher education, the living situation is stable with no recent moving and there is relatively good access to forest land. Persons with weaker connection to the Swedish culture such as foreign citizens, people with foreign background and people born outside ?the Nordic countries? are less likely to start hunt or participate in hunting.A strong relationship was found between the favorite game, moose (Alces alces), and the amount of hunters participating in the hunting.
En studie av deltagardemokratiska experiment - trend eller verktyg?
The Swedish public inquiries and most of the political science advocate reforms in the spirit of participatory democracy to strengthen the democracy. Although it is striking how limited and narrow the scientific documentation is in analysing the effects of participatory democratic reforms. Still, many of the local governments in Sweden are reshaping their organisations according to the participatory democracy model. Is it a trend and a symbolic action or a veritable action of good-will of the politicians?The paper argues that the idea of participatory democracy has become popular and widely spread.
Planering för friluftsliv, biologisk mångfald och skogsbruk i skogsmiljö
Vallentuna municipality in Stockholm County, is planning to develop a management plan for a forest area owned by the municipality. The property is an urban forest and the hiking trail Roslagsleden runs through it. Hence the municipality intends to take extra care of the outdoor recreation interests, as well as forest biodiversity, but at the same time use the area for forestry. This study discusses how these three interests, recreation, biodiversity and forestry, differ in their views of how a forest should be managed, where they disagree and how they can coexist in the management of this area. In this study, a vegetation mapping of the area and an assessment of the forest?s conservation values was carried out.
Analys och kvantifiering av energieffektivisering inom fjärrvärmesektorn
The Swedish Government has set a target to reduce energy consumption through energy efficiency within the construction and real estate sector. The purpose of the study is to examine how energy efficiency within this sector could affect the district heating volume in the future, on basis of Vattenfalls district heating system in Uppsala.An Excel model has been created to study how energy effficiency measures affects district heating demand in buildings by 2045, based on technical and economicalconditions. Furthermore, an interview study has been conducted to examine incentives for district heating customers to invest in energy efficiency measures.Result of the Excel model shows that the district heating volume of Vattenfall in 2045 is expected to 931 GWh, which corresponds to a volume decrease of 10,6 %. Based on the study?s theoretical framework only 15 %, 1 024 GWh, of the technical-economical potential is assumed to be implemented.
Tidig extubering efter hjärtkirurgi : Intensivvårdssjuksköterskans kunskap om tidig extubering och deras syn på faktorer som påverkar tiden till extubering
Early extubation of cardiac surgery patients has become increasingly important. The assessment of the patient before an early extubation is crucial and the intensive care nurses (ICU nurses) in this estimation is there for very important.The aim of this study was to examine critical care nurses' knowledge of early extubation, and what view ICU nurse has about factors that affect the time to extubation of cardiac surgery patients.A quantitative approach with descriptive and comparative design was used. Selection was all ICU nurses at a thoracic intensive care unit who were clinically active in patient care.The study showed that ICU nurses had good knowledge of why an early extubation was essential. However, the knowledge about the unit?s extubation criteria was low.
Framtagning av reläskyddsinställningar för en transformatorstation
A substation must be properly protected against lightning and other external effects to the equipment in the station or staff, for that we use relay protection. They should also protect against internal errors which may occur as ground faults. There are different types of protection relays, but most common are overcurrent-, distance-, residual current- and differential protection.The purpose of this thesis was to deepen our knowledge of relay protection and to use the theoretical knowledge we got from the university studies in the work process. In the process we discovered which parameters were the most essential and calculated these for all relay protections on the substation. We also carry out a comparison between two brands of relay protection, ABB and Alstom.During our work we will test and simulate the over-current relays in a program called NEPLAN, the program will also calculate the fault currents.
Flygburen laserskanning kopplat till skördarmätning för datainsamling till operativ planering :
The requirements for operative planning activities are increasing. The forest industry wants to gain better control over wood flow. A felling that is more market adjusted is desirable. However, this causes problems in the operative planning process because of the data collection methods used today. Data about timber assortments and data about the distribution of the tree diameter, etc., are often lacking.
Airborne laser scanning is used to a greater extent than before for estimation of forest variables and should perhaps be used to the same extent in operative planning activities as well.
Redovisningens internationalisering : Konsekvenserna av en potentiell frikoppling mellan redovisning och beskattning
Since 1928 the Swedish accounting and taxation has been closely linked by law which today as the European Union works with its harmonisation of the European accounting systems brings up difficulties. The Union strives to integrate the countries different ways of accounting in order to make it easier to use and understand foreign information. The Swedish connection between accounting and taxation means that a harmonisation would change the whole system as its known today. The purpose with this study is to examine what the link between the two means and how a decoupling would affect Swedish accounting and auditing. We also want to examine how the Swedish taxation office, who currently uses the accounting as a ground for taxation, could guarantee the quality of the declaration without a proper underpinning. The study shows that a decoupling could lead to an increase in quality on swedish accounting and that the administration would become more difficult to handle. The risk of dividend of untaxed profits is not seen as a problem in this context.
Lastbilstrafik - Inrikes och utrikes trafik med svenska lastbilar : Effektivare estimation med hjälpinformation?
Denna uppsats undersöker om användandet av stark hjälpinformation kan ge ökad precision i skattningarna i undersökningen Lastbilstrafik ? Inrikes och utrikes trafik med svenska lastbilar som utges av Trafikanalys. Förutom att en ökad precision är önskvärd i sig, kan det också möjliggöra ett minskat urval. Detta innebär i sin tur att uppgiftslämnarbördan minskas.Tre parametrar undersöks: totalt antal körda kilometer, total lastad godsmängd och totalt transportarbete. För dessa finns precisionskravet att för den skattade årstotalen får den relativa osäkerhetsmarginalen vara högst fem procent (den relativa osäkerhetsmarginalen definieras som halva konfidensintervallets längd dividerat med punktskattningen).
Myndigheternas medier : En studie av svenska myndigheters nya medieanvändning
The purpose of this thesis was to study a selection of Swedish government agencies and their usage of new media to convey information. We thought that the relationship between government agencies and the media should be addressed. This because of the current transitional period between traditional and new media. We have studied five different Swedish government agencies; Swedish Armed Forces, Swedish Tax Agency, Swedish National Institute of Public Health, Trafikverket and Sida.We used a qualitive content analysis and analyzed their homepages on the basis of six different criteria. In addition to this we studied their presence on external social communities and how the government agencies comply with the requirements of their communicative efforts.The study shows that the government agencies? media usage varies.
Hopp som i hare : Om undanträngningens roll i arbetet med min diktsamling
AbstractThe aim of this essay is to analyse what roll repression has had in the making of my unpublished collection of poems entitled Hopp som i hare. I examine how the autobiographical subject abortion has influenced the writing process and the outcome of the poems. By presenting literature that?s been important in the making of the collection I show some thoughts and ideas about Post Abortion Stress Disorder, a diagnosis without scientific grounds. In a discussion I go through the whole writing process from subject and genre choice through the revisions till the final version that were sent to be commented by the class in creative writing at Växjö University 2008.
Färdigdelat nu! : En studie som undersöker personalens bemötande av patienten vid måltiden på ett svenskt sjukhus
Since 1928 the Swedish accounting and taxation has been closely linked by law which today as the European Union works with its harmonisation of the European accounting systems brings up difficulties. The Union strives to integrate the countries different ways of accounting in order to make it easier to use and understand foreign information. The Swedish connection between accounting and taxation means that a harmonisation would change the whole system as its known today. The purpose with this study is to examine what the link between the two means and how a decoupling would affect Swedish accounting and auditing. We also want to examine how the Swedish taxation office, who currently uses the accounting as a ground for taxation, could guarantee the quality of the declaration without a proper underpinning. The study shows that a decoupling could lead to an increase in quality on swedish accounting and that the administration would become more difficult to handle. The risk of dividend of untaxed profits is not seen as a problem in this context.
Uppskattning av Ytkurvatur och CFD-simuleringar i Mänskliga Bukaortor
By applying a segmentation procedure to two different sets of computed tomography scans, two geometrical models of the abdominal aorta, containing one inlet and two outlets have been constructed. One of these depicts a healthy blood vessel while the other displays one afflicted with a Abdominal Aortic Aneurysm. After inputting these geometries into the computational dynamics software FLUENT, six simulations of laminar, stationary flow of a fluid that was assumed to be Newtonian were performed. The mass flow rate across the model outlet boundaries was varied for the different simulations to produce a basis for a parameter analysis study. The segmentation data was also used as input data to a surface description procedure which produced not only the surface itself, but also the first and second directional derivatives in every one of its defining spatial data points.