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2292 Uppsatser om Shear-free and irrotational models - Sida 31 av 153
Bidragsanalys av dimensioner och postningar : en studie vid Vida Alvesta
An old and well known problem in sawmilling is to determine which dimensions /products those are most profitable to produce. Existing optimization models maximize the value of the log. In other words, based upon the market prices of the dimensions the models calculate the best way to split the log. Yet there is a great uncertainty if the most well paid dimensions really are the most profitable to produce. The costs of the process from lumber to sawn products are hard to determine and are therefore often left out from the optimization process.
In this study the economic contribution of different dimensions/products are analysed.
2001: ett e-äventyr : Implementering av e-böcker i det digitala biblioteket
Rapid development in the realms of electronic publishing has had a profound impact on information services in general and the academic library in particular. Since mid 1990´s an increasingly number of scholarly journals and other information resources have been made available electronically. Electronic books are the newest electronic service in the hybrid library and can be seen as the third wave in the digital library. Although electronic books have for a long time existed as electronic texts such as digitalized classics or other texts in the public domain, it is not until recently that e-books have been distributed and packaged in a commercial form. As more e-book models are being developed, libraries are being forced to take e-books into consideration when planning their information services.The aim of this master thesis is to describe the first stage of implementation of the new electronic media, the electronic book or e-book, in Swedish academic libraries.
Matte painting with fysical models
Denna rapport handlar om hur man jobbar med en matte painting, och utgår ifrån bristfälligt material som inte är skapat för ändamålet, och med detta material ändå skapar en matte painting efter ad`s (art director)önskemål..
Biologiska behandlingsmetoder för rening av rejektvatten från biogasproduktion
In this literature review the characteristics of two free-floating macrophytes, water hyacinth (Eichhornia crassipes) and duckweed (Lemna sp.), and two microalgae, Chlorella and Scenedesmus, have been examined regarding their suitability as efficient nutrient removers in the treatment of wastewater with high levels of nutrients and suspended solids from a biogas plant in Loudden. The needs required for the plants to be able to grow in wastewater and the amounts of biomass they can produce have also been studied. The results show that Chlorella is capable of a very high uptake of nutrients in photobioreactors with high nutrient loadings. With an ammonia uptake maximum value at 10900mg/m2/d Chlorella outshines the other organisms in this study. The test organism that performed the closest to Chlorella in terms of nitrogen uptake was water hyacinth with an uptake about 1602mg/m2/d.
Samhällen i Kris : När Washington Tar Över
Dissertation in political science, D-level by Niklas Andersson, Spring Semester 2010. Tutor: Malin Stegmann McCallion?Societies in Crisis ? When Washington Take Over?An economic meltdown wreaks havoc on the world and has plunged the Western world into a spiral of economic stimulus in order to keep their way of life intact. At the same time the same institutions that support these countries have had another agenda for more unfortunate and less influential countries where nothing has been free and everything been to a price of self-sacrifice in order to get the consent of the IMF and the World Bank. Everything according to the points stated in the so called Washington Consensus.The purpose of this dissertation is to research what impact the Washington Consensus has on the state in terms of power over the market and sovereignty.
Varför sviktar elevers intresse för matematiki de högre åldrarna? : Vilka faktorer ger elever motivationoch lust att lära matematik?
Drinking water is produced from raw water and is either from groundwater or surface water. This thesis aims to find out if the cleaning process of raw water is sufficiently effective. This is important because consumers are otherwise at risk of waterborne infection caused by pathogens. There are three groups of pathogens; bacteria, virus and parasite. These have different characteristics which mean that they require different water treatment to be separated.
Upplevelser av att leva med KOL : En litteraturstudie
Karlsson. A (2015). Importance of spirituality and social support for quitting narcotics - Experiences of the12 step program. Bachelor thesis in Public Health science. Department of work- and public health science.
Stadsodling som begrepp i Sverige - bakgrund, nulägesbeskrivning och tänkbar utveckling
The structural rationalization of rural firms in Sweden has led to many new creative ways of developing companies. The agriculture sector is characterized by the need of capital in form of buildings, labor and inventory. The rationalization process has led to free capacity in rural firms when new technology make buildings and inventory not longer necessary for the production process. To get a better cost coverage this free capacity can be used to start-up new business areas that help the rural firm to growth.The study aims to identify factors that motives entrepreneurs in rural firms to develop new business areas. The purpose is also to analyze driving forces that lies behind development of rural firms and the forces that support or not support development in rural firms.The study is built upon five cases that all can be categorized as firms with different size and orientation.
Vägen ur ett alkoholmissbruk -En kvalitativ studie om sex före detta alkoholmissbrukare
The aim of this study has been to take part of six ex-alcohol addicts? narratives about their lives with starting-point in which factors that has been significant and/or determining to be able to leave a life in abuse and what change this process has implied for their identity. To achieve the purpose with this study has three questions been formulated. These are what in the person?s life have been important in the process of a life free from alcohol, what were specific and decisive that effected the decision to stop using alcohol and what is the attitude to them self and their new role as an ex-alcohol addict. Alcohol is a drug that is legal and accepted in the society and it´s hard to discover an addiction.
Open access i forskningspolitiken : en undersökning av de politiska argumenten i debatten kring vetenskaplig publicering
This Master's thesis aims at pinpointing the political arguments that appear in the recent debate on scientific publication. There is a widely spread opinion that prices on digital resources are far too high, thus taking up a major part of the University libraries budget, while publishing companies make high profits. It is also a common opinion that the current publishing method does not take full advantage of the possibilities of electronic publishing. Lately a number of alternative ways of publishing have been initiated and discussed, generally referred to as open access. Open access published material is available free of charge and free of most copyright and licensing restrictions on the public internet.In this thesis the minutes from four hearings held by the UK House of Commons in the spring of 2004 are examined.
Analysverktyg för webbsidor med JavaScript
New technological innovations like tablets and smartphones have a taken significant market share on the web and puts new demands on webpages, the user interface and compatibility among different client devices. The full test of a web-based system prior to the publication is often regarded as an important part of the process to create a complete and successful website. This bachelor thesis investigates the possibility to analyze mobile-adapted web sites using a system that first records the visitor's activities and then replays them for an expert analyst to provide valuable information to developers about how their site can be improved.The essay begins with a litterature study on today's most common web development tools and then examines the possibility to apply them during the development of the analysis tool. The work also describes two methods, pair programming and waterfall method used during the project. Three different evaluation methods are presented and one of the models is applied on the finished system.The project results in a web-based analysis tool written mainly in JavaScript using the jQuery library.
En undersökning av Bergvik skogs och Skogsstyrelsens gallringsmallar mot en gallringsoptimering på simulerade typbestånd
The purpose of this study was to analyze the two thinning models: Bergvik Skog´s thinning model, which is based on total stems and dominant height, And Swedish forest agency´s thinning model which is based on basal area, habitat index, dominant height and recommended number of stems at final felling in Heureka´s StandWise and PlanWise.
The data we chosen for our study were taken from the Swedish National Forest Inventory and we were creating a simulated stand based on a great number of sample plots in Region three from The Swedish National Forest Inventory. We had chosen to create one stand with low habitat index (T20) and one with high habitat index (T24). Our purpose were to come as close as possible to a natural stand in central Sweden. We performed the thinning in StandWise and analyzed the data I Excel files. Our thinning optimizing´s were performed and analyzed in PlanWise.
There wasn´t any big differences between the thinning on the lower habitat index.
Nolltariff i kollektivtrafiken ? rättvist och/eller effektivt?
Uppsatsen behandlar frågan om huruvida en totalt skattefinansierad kollektivtrafik med nolltariff kan anses vara rättvis och effektiv. Organisationen Planka.nu:s argument för nolltariff i kollektivtrafiken analyseras med utgångspunkt i free ridning-problemet och individens betalningsvilja. Den skattefinansierade nolltariffen jämförs med marginalkostnadsprissättning och tvådelad tariff, som är två teorier om optimal prissättning av kollektiva varor. Kollektivtrafik beskrivs som en klubbvara med vissa positiva externa effekter samtidigt som varans substitut väntas generera negativa externa effekter. I uppsatsen antas den samhällsoptimala mängden kollektivtrafik vara högre än summan av alla individers individuella efterfråga p.g.a.
Hur fungerar gruppen? : En studie om gymnasieelevers upplevelser av tre grupprocesser och dess påverkan på kunskapsutvecklingen
Syftet med uppsatsen har varit att undersöka elevers upplevelser av tre grupprocesser samt vilken påverkan eleverna upplever att grupprocesserna har på elevernas kunskapsutveckling. De studerade grupprocesserna är groupthink, rollagande och free-riding. Vi har valt att utföra studien genom kvalitativa intervjuer med fyra stycken gymnasieelever för att ta reda på deras upplevelser av grupparbete och grupprocesser. Resultatet av intervjuerna presenteras i kapitel 4. Analys i form av citat där vi även har reflekterat över det som sagts.
Säkerhetskulturen, organisationskulturer och katastrofer : Kvalitativ studie av tre fartygskatastrofer: Express Samina, Herald of Free Enterprise och Estonia
Forskningen om säkerhetskulturen i organisationer domineras av kvantitativa enkätstudier med fokus på hur en god säkerhetskultur skapas. Sällan studeras vilken roll säkerhetskulturen har, vare sig den är god eller dålig, i händelseförloppet mot en fullgången katastrof. Uppsatsens syfte är tredelad. För det första, kritisera hur man traditionellt konceptualiserar begreppet säkerhetskultur, för det andra, utveckla en alternativ modell för att med hjälp av haveriutredningar öka förståelsen för säkerhetskulturens roll i samband med katastrofer, för det tredje, pröva modellen empiriskt på tre fartygskatastrofer: Express Samina, Herald of Free Enterprise och Estonia. Säkerhetskulturen betraktas som diversifierad bestående av ett antal parallella kulturer, i uppsatsen benämnda som subkulturer respektive delkulturer.