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2220 Uppsatser om NASA task load index - Sida 16 av 148

En utvärdering av temperaturproblem samt närsaltsbelastning i odlingsdammarna och Flugströmmen i Harasjömåla

This bachelor?s project deals with both the problems of high water temperatures in fishponds at a fish-breeding station and of the nutrient load to nearby lakes and streams in Harasjömåla, Blekinge, Sweden. Theory, methods and results of the analyses are presented in the report..

Betongpelare och brand : En utvärdering av 500 °C isotermmetoden

At the beginning of 2011, Sweden started using the European rules for structural design, the Eurocodes, instead of the previous national rules. In both the previous rules and the Eurocodes, it is possible to dimension concrete columns using tabled values. However, the required cross section measurements have increased considerably. Moreover, it is possible to dimension concrete columns using calculations, however, this is unusual.The development of a fire in a fire cell can be divided into the growth stage, the fully developed fire and the cooling phase. The duration of each phase, as well as the temperature, is dependent on a number of factors, e.g.

Hur har de internationella diversifieringsmöjligheterna förändrats för en investerare på Stockholmsbörsen?

Internationell diversifiering har blivit allt viktigare för investerare. För att kunna göra en riskspridning utifrån utländska kapitalmarknaderna bör dessa inte samvariera perfekt med varandra. På senare år har teknisk utveckling och en globalisering inom företagsvärlden bidragit till en förenklad finansiell marknad för större involvering. Det gör det därför intressant att studera om risken och förutsättningarna för internationell diversifiering förändrats, vilket leder till frågeställningen Hur nyttan av internationell diversifiering påverkats för en investerare på Stockholmsbörsen?  Har det blivit svårare att finna marknader med låg korrelation för risk reducering?Uppsatsen syftar till att undersöka hur korrelationen mellan ett antal index i världen har förändrats mellan två tidsperioder, och om detta medfört högre risker för investeringar.

Styrketillväxt med hjälp av vibrationsplatta

Abstract 1.The purpose of this study was to investigate the effects whole body vibrations on maximal strength, power output and neuromuscular activity in m. pectoralis major during bench press.Participants consisted of 35 male and 9 female military high school students (m=23, 1 years). On the basis of initial maximal performances in bench press the participants was divided into two experiments groups and one control group. Intervention groups performed a specifically designed push up program on a vibrating plate respectively a step board during 12 weeks Initial load at 60 % of 1 RM showed an average of 46, 5 kg. All groups showed an average increase of 13 kg for each person after 12 weeks.

?Var ligger en kompromiss?? : Om några andraspråkselevers upplevelser av parskrivning.

The purpose of this study was to investigate the collaboration of four learners of Swedish as a second language during a pair-writing task, as well as their experiences of the process, in order to draw conclusions about how to execute pair-writing in the L2 classroom. The study has found that the establishment of compatible partners are of great importance to achieve success and learning through pair-writing. One of the pairs studied managed to work well together and use each other?s knowledge to improve their text, while the other pair continuosly battled for dominance, which had a negative impact on their performance. The two successful students had enjoyed the task and believed they had learned something from it and that pair-writing can be a useful source of knowledge.

Att tillämpa återkommande mätning av kundnöjdhet i IT-projekt : En vidareutvecklad modell baserad på modellerna American Customer Satisfaction Index (ACSI) och SERVQUAL

I dagens samhälle är det allt viktigare för företag att behålla sina existerande kunder då konkurrensen blir allt hårdare. Detta medför att företag försöker vidta åtgärder för att vårda relationer med sina kunder. Detta problem är även högst relevant inom IT-branschen. Inom IT-branschen är det vanligt att arbeta agilt i IT-projekt. Vår samarbetspartner har sett ett ökat behov av att mäta servicekvalitet på ett återkommande sätt inom IT-projekt, detta för att mäta relevanta variabler som sträcker sig utanför kravspecifikationen.

Nyhetssöktjänster på webben: En utvärdering av News Index, Excite News Search och Ananova

The purpose of this study is to examine the retrieval performance of three search engines, specialized in retrieving news articles: News Index, Excite News Search and Ananova. Thirty questions, grouped into three categories – politics, economy and sports, were used and the first twenty documents for each question were examined. The questions used were designed to be as current as possible and efforts were made to perform the searches with as little time span as possible between each search engine. The precision of the search engines was determined for each of the questions as well as for each category and for the combined categories. In measuring precision an average was calculated, intended to favour search engines that place its relevant documents early in the ranked list.

Konjunkturförändringar i åländsk ekonomi : Val av förklarande variabler för åländska företags omsättning

 This paper is made on behalf of Statistics and Research Åland, ÅSUB. The aim is to explain the turnover for companies in Åland, with appropriate variables. The main study variables are variables that consist of the Swedish and Finnish activity indices. The study variables also include variables which consist of tourists from Sweden and Finland and the introduction of the Euro in Finland. The data used is from the period January 1996 to June 2008.Different regression models for the turnover are tried and explanatory variables are selected by use of stepwise regression, backward elemination and forward selection. The final model includes activity indices for Sweden and Finland, the introduction of the Euro, tourists from Finland and an autoregressive component of order one .

Realisering av returer vid rundvirkestransport med lastbil : hinder, möjligheter, vinster och vinstdelning

Holmen Skog, region Norrköping, is located in an area with good potential for backhauling because a large number of geographically scattered mills. However, despite these factors there are many difficulties preventing the realization of this potential. The purposes of this study were twofold. First, from a hauling contractor perspective, to calculate backhauling profits and suggest a profit sharing scheme. Second, to identify and quantify obstacles and possibilities for realization of backhauls.The study required the use of three different types of methods.

Testbänk för motorbåtsdrev

Marinediesel has, to meet there customers needs for a suitable sterndrive to powerboats, developed a prototype. The prototype is currently in the testing phase. The opportunity to test the sterndrive under load inside the workshop has not previously been possible. Until now the drive has been tested in a test bench without any load on the propeller axle. The prototype has also been tested under real conditions mounted on a boat.The idea with my thesis was to create a test bench that can run around the clock in order to be able to test things like wear and service intervals and other things that require that the test interval is long.

Utvärdering av strategier för prestandaoptimering i relationsdatabaser

När ett nytt databassystem ska tas fram och införas i en organisation ska funktioner och krav på systemet identifieras och analyseras i en designprocess. Ett krav på ett databassystem kan vara att systemet ska uppvisa en viss prestanda. Designprocessen leder så småningom fram till fysisk design av databasen och dess applikationer. Det kan finnas flera olika lösningar för fysisk design av databasen och dess applikationer som tillgodoser kraven och funktionerna som ska finnas i systemet. Dessa olika lösningsalternativ ger olika prestanda.

Födointagets betydelse för muskelglykogeninlagringen efter arbete hos häst och människa :

Glycogen is the storage form of glucose and is used by the skeletal musculature as energy both for intense and endurance events. The glycogen content in the horse?s middle gluteal muscle is more than 600 mmol/kg dry weight, and almost 400 mmol/kg dry weight in the human?s Vastus lateralis. In some special occasions, for example in competitions with several moments on following days, there is a need of a fast muscle glycogen resynthesis. The feed intake is of importance for the velocity of the resynthesis.

Handelsutvecklingen efter Lettlands självständighet : En studie om ekonomisk transition under perioden åren 1993 fram till 2004

The main purpose of this essay is to investigate if Latvia´s pattern of trade has become more similar to the mature market economies, after Latvia´s independence 1991.Today, the intra-industry trade (IIT) dominates the trade of mature market economies. One of the pioneers of intra-industrial trade is Paul Krugman, who was the first to emphasize the importance "of scale and consumers' desire for variety" in explaining the basis for modern commerce. Customers get more variety and usually cheaper goods when the market gets bigger. I mainly use the modern trade theories to explain the trade pattern in Latvia. To measure how Latvia has developed its intra-industry trade, and thereby is approaching the mature market economies´ trade pattern, I use the Grubel-Lloyd index (GL-index).

Att inte välja, är det rätt val? : En jämförande studie av den Sjunde allmänna pensionsfonden och Sveriges mest valda premiepensionsfonder

Syfte: Studiens syfte är att undersöka om AP7 uppfyller sitt mål att ge sina sparare minst lika bra pension som övriga premiepensionssparareMetod: Uppsatsen baseras på en kvantitativ metod. Avkastningar riskjusteras med hjälp av Treynorkvot, Sharpekvot och Jensens Alfa för att kunna jämföras mot varandra.Slutsatser:AP7:s riskjusterade avkastning ligger något under Sveriges övriga premiepensionsfonder sett till både PPM-index och genomsnittet för de nio mest valda PPM-fonderna år 2013. AP7 har presterat en sämre riskjusterad avkastning än SIXRX och en bättre riskjusterad avkastning än en svensk statsobligation sett till undersökningsperioden..

Utveckling och dimensionering av en lastupptagande provningsram

ÅF Test Center in Borlänge had a need to expand their capacity for compressive and tensile strength tests. They wanted to do this by using a hydraulic cylinder, which they already possessed, to apply the force with. This required a load receiving structure. The aim of this work was to design and dimensioning a test bench for a cylinder marked NIKE 300 tons. The work would result in a completed design proposal on a test bench which could manage to run the compressive and tensile strength tests of up to 3000 kN.

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