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4314 Uppsatser om Rate of Change - Sida 18 av 288

Studieavbrott vid distansutbildning

Uppsatsen är producerat och examinerad under 2007.

Pilotmodeller till flygmekanisk simulator för JAS 39 Gripen

AbstractSAAB has for a long time used user controlled pilot models in ARES. ARES is a simulation tool used in the desktop environment for simulations and calculations of the JAS 39 Gripen fighter and other aircraft. ARES stands for ?Aircraft Rigid body Engineering Simulation?. To work with these pilot models has been both time-consuming and inefficient.

Powerplay En studie om de stora sporternas numerära överläge i svensk press

The purpose with our study was to see if and how the amount of articles regarding different sports has changed during the last three decades. If it had changed our target was to se how and why it had changed. We have performed a quantitative content analysis. In the analysis we have studied the two national Swedish newspapers Dagens Nyheter and Aftonbladet. In doing so we have created two synthetic weeks in each of the years 1986, 1999 and 2012.

Utveckling av en metod och en utrustning för mätning av bränslesprayers rörelsemängd

A new type of device for measuring thev m& ?rate of fuel sprays from a diesel fuel injector has been developed and the various steps in the development are described. The device works by deflecting all of the sprays from the injector at the same time by using a bell shaped deflector. A load cell consisting of a machined steel part with strain gauges mounted on it measures the resulting force. The shape of the curvature in the deflector bell shape has been evaluated by photographing the flow in a 2D?version of the curve shape.

J?mst?lldhetsperspektiv inom det svenska klimatanpassningsarbetet: En kvalitativ inneh?llsanalys av offentliga myndigheters handlingsplaner f?r klimatanpassning

The climate crisis represents a serious threat to both people and nature and it will exacerbate existing inequalities, especially for women and girls who are most at risk yet have contributed least to the problem. Climate adaptation is critical to addressing the challenges of climate change, and it requires integrating a gender perspective to take into account the specific vulnerabilities faced by women and girls, as highlighted in the Paris Agreement. This study examines the implementation of gender perspectives in Swedish governmental climate change adaptation strategies. By applying a qualitative content analysis to 24 government agencies? action plans, the study investigates how gender equality is addressed in the context of climate change adaptation.

Nordiskt säkerhetspolitiskt samarbete : pragmatiskt men gränslöst

This study deals with one particular instance of foreign policy change in Sweden; The political take-off for enhanced Nordic Defence and Security Cooperation in the beginning of the 21st century which led to an agreement on a Nordic declaration on slolidarity. The aim of this study is to explain why the political development has undergone a rapid upturn and when such a policy change occur. Its purpose is to explain what factors and conditions that influenced the policy change. It also explores the meaning of the Nordic Declaration of Solidarity. The theoretical point of departure is Foreign Policy Analysis combined with John Kingdons policy-window theory.

Nivådiagnos med sensorfusion : Utveckling av koncept för nivåmätning i lutande tankar 

Today?s system to measure the volume in a tank consists of a vertically placed sensor. When a vehicle is tilted the level of the fluid might change and if the volume is calculated based only on the information from the sensor it could result in a incorrect value.This thesis exams a new method to calculate the volume in tanks by using sensor fusion to crosscheck the i formation from the level sensors when the vehicle is tilted. The information is then used to see if it is possible to identify the grade of tilt by the change of fluid level. If the grade of tilt can be measured then the volume can be calculated in a more accurate way.

Sex differences in feeding visit rates in Northern Wheatears Oenanthe oenanthe

AbstractThe Northern Wheatear (Oenanthe oenanthe) is a small insectivorous passerine bird living in open landscapes. Both parents feed the brood of approximately five chicks, but little is known about how each sex allocates their feeding effort. In this study I investigate feeding nest visit differences between male and female Northern Wheatears relative to the age of the chicks, the number of chicks and the quality of the territory for 17 pairs from 2008-2010. Data were collected using automated data loggers to record nest visitation rates during chick feeding, and the sex was determined from nest video cameras. I also examine if the parents? rate of feeding visits changes over the nestling period.

Aspergers syndrom : En enkätundersökning om åsikter rörande att Aspergers syndrom försvinner som egen diagnos och införlivas i autismspektrumtillstånd.

AbstractIn 2013, the diagnosis of Asperger?s syndrome will be eliminated as a stand-alone diagnosis, to be subsumed into the existing diagnosis of Autism Spectrum Disorder. In this paper, a study with the objective of emphasizing current opinions regarding the change in diagnosis is performed. Another objective is to examine the connection between identity and diagnosis. The study therefore targets people with a diagnosis, in this case Asperger?s syndrome.The empirical material of the study has been collected through a quantitative web-based survey.

Röjningsförbandets betydelse för avverkningsekonomin i södra Sverige :

The aim of this work is to demonstrate how the net present value (NPV) at the time of the first thinning depends on the spacing after pre-commercial thinning, and show how net value from first thinning in same stand is influenced. This study is performed with models based on non-distant dependent growth models for single trees. Two different growth models have been used, one for cleaning (pre-commercial thinning) and one for thinning. The first one yields stem density distributed over diameter classes. In the second one, (the thinning model), it is possible to choose when thinning should be done, the thinning method, thinning grade and numbers of thinning.

Elektrolytisk reduktion av zink vid reningsprocess

When cylinders for motor saws are manufactured there are high demands on the cylinders strength and wearing qualities. Aluminum is a material with low density and is used by Husqvarna AB for their motor saw cylinders. The aluminum is strengthening with nickel that is attached to the cylinders through electrolysis. When aluminum is in contact with oxygen a film of oxide is formed. To eliminate the oxide and to prevent formation of new oxide zinc is used.

Rom byggdes inte på en dag : En studie av historieämnets förändring och utveckling med fokus på Antiken

This essay will investigate how the History subject has changed and developped in Sweden. For those who study the way subjects and the school itself change over time it becomes quite clear that they have gone through an enormous change. However this essay will focus on how the History subject, and mainly the teaching of the Antique, in particular, has changed. In order to find out how it has changed several things will be taken into account. First of all there will be interviews and conversaisions with several teacher and try to find out how it has changed, according to their experiences and belives.

Entrén vid Universitetssjukhuset i Lund : hälsosjukhuset med frånvaro av trivsamhet

Scientific research shows that humans regain their strength when they are spending time in nature. Ulrich, Kaplan & Kaplan, among others, has shown in their research that nature can reduce stress and decrease the after effects of stress. Lund University Hospital, USiL, is a big working place and has a large number of patients. To be a patient often means that you lose control of your daily life which could cause stress. For the personnel high workload can be a stress factor.

Hållfasthetsegenskaper i gjutjärn : tensile properties of cast iron

In the last few years people have become more and more aware of how humanity is affecting the climate. In the direction of reducing the greenhouse gases is to design engines with higher tensile properties and reduced weight, in order to achieve lower fuel consumption and cleaner fuel incineration in today's truck engines.In order to achieve these requirements it?s necessary to increase the combustion pressure in the engine. This requires higher tensile properties and high thermal conductivity of the engine material. The department of Component Technology at the University of Jönköping in collaboration with Volvo Powertrain AB, Scania CV AB and DAROS Piston Rings AB has been commissioned to develop this material and to find knowledge of material properties used in truck engines and piston rings used for marine applications.The purpose with this work is to analyze the tensile properties of a series of cast iron, cast under different metallurgical conditions.Four different series of cast irons have been analyzed from four points of view, carbon concentration, nodularity, amount inoculation and cooling rate.After the tensile test all specimen data was analyzed in a mathematic calculation program called Matlab 2006a.

Hur påverkar ålder och fetthalt laxsmoltens utvandring till havet?

AbstractPrevious studies have shown that wild smolt have 2.5-4.5 times higher survival rate than smolt grown in culture and that starved reared smolt behave more like wild born smolt. The purpose of this project was to study whether there are differences in migration patterns and survival during migration to the coast between wild and reared smolt and between different types of reared smolt.In 2009, 25 smolts in three different groups were tagged with acoustic transmitters: Wild Born, conventionally reared 2-year and 1 ?year old smolt. For the 2010 trial there was also added a group of reared 2 ?year old smolt that were starved before release.

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