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.

The objective of the present study was to evaluate distillers? dried grains with solubles (DDGS) as a protein source to rainbow trout (Oncorhynchus mykiss), by studying digestibility and growth measurements. One control diet, totally lacking DDGS, and three test diets were made containing 10 % (low), 31% (medium) and 51 % (high) DDGS respectively on dry matter (DM) basis. The control diet and the test diets were made to be as nutritionally equal as possible. Wheat bran was used to balance the fiber content of the diets.

Active work to increase the efficiency of energy use is taking place in Sweden and throughout all of Europe. Electricity is an important part in our society?s energy system which means that the electrical grid operators and associated therewith has a central role in this work. Monitoring and controlling the electrical grids are managed from the distribution system operator?s DC, dispatch center.The aim of this report is to examine how the operations in a typical DC on the Swedish electricity distribution network will look like in five to ten years.

I denna rapport redogör jag för det praktiska examensarbete jag genomförde under vårterminen 2015. Jag har studerat antidrog och -alkoholkampanjer under 70-80-tal, kampanjen ?Det finns många anledningar att inte testa knark? samt kampanjen ?Langarmytologi? som lanserades våren 2015. Mitt fokus har legat på att undersöka film som medium när det gäller antidrog och -alkoholkampanjer. Varför används just detta medium så ofta? Fungerar skräckpropaganda eller är humor det smartaste tillvägagångssättet? Jag har producerat tre korta filmer i programmen Adobe Premiere Pro samt After Effects där jag visualiserat det jag kommit fram till i mina studier. .

Uppsatsen handlar om hur receptionen av Hilma af Klints konst sett ut från 1986 fram till 2012 utifrån diskussionen om andlighet. Genom att se på olika konstskribenters texter lyfts mönster av värderingar fram som visar på inställningen till andligheten i Hilma af Klints konst.  Konsthistorikerna James Elkins och Suzi Gablik exemplifieras som två motpoler och värderingarna länkas samman med deras teorier om andlighet och religion i samtida konst..

Energy losses are an essential part of a power grid company?s costs. From anenvironmental and economic perspective, it is important to reduce these costs. Toknow where efforts should be deployed, it is important to have good knowledge ofwhere in the network losses are situated. When creating network tariffs, there is alsonecessary to have a correct distribution such that the network customers that use acertain part of the network, only pays for the network losses in this area.

For innovative organizations and companies it is essential to use existing knowledge to avoid spending time and resources on already existing innovations. By using patent information, companies are able to get a picture of what is already done in their area of interest. The main purpose of the study is to examine the information use in small and medium-sized enterprises that are members of the Swedish Inventor?s Association, focusing on patent information. The study examines the use of patent information and which barriers the companies have to patent information.

Harmonics are a well-known problem that has to be dealt with in the design of thegenerator. Internationally accepted standards limits the amount of harmonics allowedin the no-load voltage. These limits can be difficult to fulfill with integral slot winding,where the number of slots per pole and phase is an integer. The presence of thedamper winding often makes the problem with harmonics even worse and harmonicswith frequencies of order 6q±1 arise with significant amplitude. How the damperwinding is designed affect the content of harmonics in the no-load voltage and the aimwith these ? has been to investigate in which extent design of the damper windingaffects the contents of harmonics.Simulations with the 2-D finite element method have showed that if the damper barsis centered in the pole shoe, the amplitude of the harmonics of order 6q±1dependsboth on the ratio between the stator slot pitch and damper bars slot pitch and if thedamper bars are connected between the poles or not.If the damper bars is displaced with ¼ stator slot pitch alternately, the amplitude ofthe harmonics of order 6q±1 is reduced and the influence of the ratio between thestator slot pitch and the damper bars slot pitch will vanish.

En uppsats som reder ut vad en författare är och vilken roll denne intar i ett nytt medium som YouTube. Genom att undersöka forskning om författarens roll i äldre media och analyser av tre olika författarroller på YouTube utreder den här uppsatsen hur rollen ser ut i ett nyare media. Här analyseras en tydligt enskild uppladdare på YouTube, klipp skapade och uppladdade av ett produktionsbolag och ett fenomen där olika uppladdare använder samma ursprungsmaterial för att skapa nya kreationer.Både litteratur och filmforskningen har överlag fokuserat på den enskilda författarrollen men den här uppsatsen påvisar dock att kollektivt författarskap blir tydligare i ett medium som YouTube..

Fortum has in a pilot project installed metering equipment with wireless communication in secondary substations in Stockholm. So far, the collected data are used only in specific projects.This master thesis was carried out at Fortum Distribution AB in Stockholm during 2013. The purpose of this study is to simplify and enhance the use of data in for example network planning process, by giving suggestions on how data can be managed and giving examples of analyzes that collected data can be used for.The electricity meter which Fortum has installed is a EDMI-Mk10A which is set to measure max/average/min values with a one hour time resolution of the following parameters: voltage (per phase), current (per phase) andactive power and active and reactive energy.In order to analyze the collected data an analysis tool is required. During this thesis two customized tools in Microsoft Excel have been developed, one for sorting data and one for analyzing.One aim of the thesis is to show examples of what collected measurement data can be used for. This work shows an example of analysis of active power, power factor, voltage, occurrence of interrupts and the relationship between outdoor temperature and power.This master thesis has among others resulted in the following advice: Expand the number of secondary substations with measuring equipment.

This paper is about our collective fascination for the social medium Instagram, and our lively discussions about why certain images may be more so-called "Liked" than others and why some individuals becomes more successfull on Instagram than others. Thanks to our own daily use of Instagram, the idea was born to study and look at how some individuals build their brand through this social medium. With social media new ways to construct and communicate images have appeared. Artists, celebrities and companies use media as a channel for communication and marketing. In our study, we focus on the use of Instagram for marketing purposes by Rachel Brathen, one of the worlds most well-known yogainstructors.

Numerical simulations play a vital role in both static and dynamic stability assessment of electric power systems and the foreseeing of voltage collapse. Simulations performed by Svenska Kraftnät(SvK) are mainly done in the specialized voltage collapse predicting software tool, SPICA and the more all?purpose software tool, ARISTO.The grid operators at SvK use SPICA to predict the maximum transfer limit at specified sections (in this report the section in concerns is the southern part of Sweden i.e. interface1 4). SPICA is mainly used as an online application by using actual states from the grid, these states update every quarter of an hour.This thesis is a continuation of the master thesis SPICA ? ARISTO JÄMFÖRELSE by Jakob Katzman and Johan Fält.

A large part of the interactions between horse and rider during horseback riding takes place through the reins and the bit and devices for measuring the tension on the reins, rein tension meters, has fairly recently been developed. To safeguard the welfare of the ridden horse riders need to be aware of the rein tension they apply and actively work to decrease it. Furthermore, there is a need to develop the study of rein tension through new techniques and refined analysis procedures. A good-quality rein tension meter should be small in size, sensitive, durable and as accurate for light rein tension as for strong forces. Rein tension meters used in research on horse and rider interaction commonly depend on strain gauge technique for generating rein tension data.

The purpose of this study is to describe and analyze homelessness in a medium-sized municipality from an organizational perspective. Some of the central questions in this study are: How is the cause of homelessness explained? How do different actors in the community address, prevent and combat homelessness? Who is responsible for the homelessness?This study is based on four semi-structured interviews with organizations that work with homelessness. The analysis is based on problem definition theory.The result of this study shows that homelessness is a problem in this medium-sized municipality even if it is not a big one and that it is often closely combined with substance abuse. The responsibility for the homeless is on the homeless themselves and the social service because that causes is, according to this study, individual based.  .

The aim of the project was to develop a method to investigate differences in adhesion of microorganisms to materials that contains lignocellulose. The method was tested on a gram-positive (Micrococcus lutea) and one gram-negative (E-coliJM109) bacteria.The study was begun by cultivation of the two microorganisms. The cultivation was done to calculate the generation times of the bacteria and to obtain growth curves. Cells from these cultivations were also frozen (-70ºC) and later used for inoculation.At STFI-Packforsk AB the total charge on the mass was measured and later a conductivity titration on the mass was executed as well, all to find out more about the different properties of the mass. Properties that in a later part of this study could possibly be linked to the adhesion of cells to the pulp.