This master thesis was conducted during the spring of 2014 at Atlas Copco Rock Drills AB in Örebro. The purpose of the thesis was to develop a simulation model of the rotation system for a hydraulic rock drill. In the future, the model will be used to investigate the phenomena called ?jerky rotation?. In order to validate the simulation model a test bench was designed and tests were made.

Most often when developing a new system there is a need get a functioning testtool up and running. Including time, cost and resources the solution isn?t always obvious, developing your own or buy one ?of the shelf?. The purpose of this thesis is to study how a general testtool for executing functional tests should be designed to be reusable, be based on recognized knowledge and be able to fast and simple be customized for different types of systems. Key functions from the litterature is presented and used in the design of a testtool prototype.

IT is a natural part of the work today when it comes to projects. There are many aspects that are wholly or partly dependent on IT support actions to proceed efficiently. Although there is still situations where IT is deselected as a tool. The factors that make it look like this is not always included in the calculation, which resulted in the failure that could have been remedied with the right tools to solve the problems. The project form which today is increasingly common with all major groups involved enables IT tools' impact also becomes an increasingly provided they are used properly.

New energy resources that can replace petroleum diesel are needed and biodiesel may be an excellent substitute. During storage and use, biodiesel can oxidize and form peroxides, leading to degradation of the fuel. It is therefore important to determine the peroxide content of the fuel. In this thesis the triphenylphosphine method, which involves GC-MS analysis has been compared to the standard iodometric method which involves titration with sodium thiosulfate. Working standards were made to see how well the iodometric method worked and also in order to make a calibration curve in GC-MS.

Todays board game manuals have many shortcomings. One of them is that they are not always adapted to the game's target audience.Adapting the language and shape of a game manual for the the target group children, can save time for both parents and teachers, and give the children a chance to conquer the game by themselves. In addition, playing board games can lead to children developing other important properties such as problem solving and independence.This study found that the game manuals inconsistency, tone and the way they adress the reader makes it difficult for children to grasp the content. Many game manuals do not speak directly to the reader, and often describes gameplay in a passive way, which has been shown by this study.This study has resulted in 12 guidelines for writing game manuals for children. In addition, they have been tested with a sample study.

This essay deals with classification of images using the subject classification system Outline. This classification system is used in regional museums and they do often have large collections of pictures. The regional museums have their main focus of culture history. The purpose is to look at Outline from four different aspects: 1. In what way is the system constructed looking at classification theory, 2.

AbstractThis paper is about children and stress. Stress among children is a serious problem and to be aware of that as a preschool teacher is very important. I?ve focused on the youngest childrenin preschool. I?ve searched for information in litterateur and articles.

Title: Experiences of Banner advertisement on a specialized homepage Author: Marcus Westerberg Supervisor: Marie Hemming Department: Department of Business Administration, IEM Course: Bachelor thesis in Business Administration, FEC 007 Purpose: Create a understanding for how the users on Internet pages experience the occurrence and the shape of the banners. Method: Methods used are quantitative and qualitative, and the facts and figures are based on a pop up inquiry and some telephoneinterviews. I elected pop up inquiry and telephoneinterview as my data collection. My inquiry had a high grade of standardization and the interviews had a low grade of standardization. Result: On the basis of the question of issue I have drawn the conclusion that the users feels that it is important with information in all advertising. It is also important for the users to create a value around the product. The users do not have the time to figure out the message behind advertising, the want simple and massive information about the product/service.

The purpose of this research is to evaluate traditional market segmentation variables, as criticism has been directed towards these variables. Based on our problem discussion we find it motivating to undertake investigation in order to understand which connotations an ethnographic approach will provide. Methodology:We have applied an ethnographic approach, which has enabled us to attain under the surface knowledge from our respondents. Theoretical perspective:As we wanted to evaluate existing traditional segmentation variables, we decided to only include theory regarding these variables. Empirical data:In order to collect our data, we observed seven respondents at Ikea and conducted observations and in-depth interviews in their homes.

I made this examination essay to investigate the possibilities and problems with machinery import. The rules intend to loaders and agriculture machines are still pretty flexible. It is today rather simple to make a registration or inspect those machines. There are still some practical problems to be aware of. It is very important to have the right contacts abroad, it is not always that you have time or moment to inspect the machines before purchase. In that case you have to trust your contact or partner about condition, equipment or working hours of the machine. Another important thing is payment before delivery: There is a huge risk that you do not get the machines that you paid for. If problems come up, you need to know the laws, your rights and your duties. A Swedish company does not pay any value-added taxes when it buys from another member of the European union. On the other hand must the machine be sold included value-added tax, if the buyer is a Swedish company.

St. Jude Medical Inc is one of the worlds leading companies in the medical technology area with cardiovascular devices as its specialty.Manufacturing implantable medical devices such as Pace Maker Electrodes requires complex design, safe processes and well trained operators. User friendly manufacturing operations are a necessity.Lately there?s been an increase of the manufacturing volume which also increased the number of operators. More operators need to be trained and cross-trained.

This is a master thesis work carried out at the Department of Energy and Environment atthe Division of Electric Power Engineering. The master thesis work describes the theoryof distance protection relaying in 130 kV meshed distribution networks. The main aim ofthe thesis was to construct an Excel application for calculation and documentation of thesettings for distance protection relays. The program is based on general methods forcalculating settings of the different zones for the distance relay and presents the settingsin simple graphics using quadrilateral characteristics.The reason for building an Excel based application is the great variety of distanceprotection relays in live networks. The manufacturers of distance protection relays makeprogram for documentation available, however, they are based on the typical settings forthe specific relays.

Several studies have investigated the relationship between different measures of innovative activity, such as patent statistics and R&D expenditures and some have looked deeper into the differences between large and small firms regarding number of patents issued per employee or per R&D dollar. In this paper, the objective is to find out if there are any indications of a barrier to entry (due to economical factors, lack of knowledge etc) for small firms to get into the field of patent handling. The approach is to first set up a hypothesis based on some simple assumptions about how firms would make decisions about whether to apply for a patent or not and thereafter use econometric methods in an empirical investigation. The data used for this study are figures on number of employees, number of patents granted and R&D expenditures for the Swedish firms in the pulp and paper industry. The main conclusion is that, based on the analysis of the data from this rather limited group of firms, no such barrier can be seen..

Communication is a part of everyday life. The more sensitive information we handle, the more interesting the question around security of your information becomes. There are two ways of handling security around the information you want to communicate, either you control the means by which you are communicating. Or you control the way you communicate, making you able to use existing communication channels. Existing methods within cryptography enables two parties to communicate information securely.

Syftet med studien var att undersöka hur Rydaholmsmetoden kan fungera för elever i lässvårigheter på högstadiet. Syftet var också att undersöka hur eleverna uppfattade arbetet med metoden. Som utgångspunkt valdes en kvantitativ ansats i form av en interventionsstudie med 15 elever i årskurs 7. Även en kvalitativ ansats i form av samtal användes för att ta reda på hur eleverna uppfattat arbetet.Resultatet av undersökningen visade att de flesta elever ökade testresultaten vad gäller avkodning. Interventionen genomfördes under fem veckor med för- och eftertest, vilket kan ha bidragit till viss inlärningseffekt av testresultaten.