The purpose of this thesis is to analyse studies that evaluate Web search engines. This is done in four categories; the researchers? purpose, the evaluation measurements, the relevance, and the time aspect. Our method is based on a text analysis in which we use the direction of analysis of the content of sixteen evaluation experiments. Our results indicate fundamental differences in the way the researchers are tackling the problem of evaluation of Web search engines.

Detta arbete a?r en sja?lvstudie i att utveckla improvisation pa? saxofon. Syftet a?r att utforska hur det a?r mo?jligt att uppna? en niva? av frihet i det improviserade spelet. En grundtanke som presenteras i inledningen a?r att all musik egentligen kommer ur improvisation.

My bachelor?s dissertation concerns the creation of a proposal for interior decoration of the Boland High School?s canteen. I have been in contact with personnel, students and the school principal through the duration of the project. In the end, substantive changes of lighting, interior decoration and movement were proposed for the canteen. In the proposal I have focused on accentuating the school?s profile, on creating smaller spatial configurations within the larger configuration of the room, lowering the noise level, creating a good movement flow, increase the number of seats and creating a pleasant environment in which to eat..

 Saab Microwave Systems (SMW) is a business unit within Saab AB that manufactures and develops different types of radar- and sensor systems for naval, airborne and ground based forces as well as within the market for civil security. In addition to the manufacturing of radar and sensor systems they also provide different types of service concepts. The business unit has 50 years of experience within the area of developing radar systems and is considered to be one of the market leaders. When applying an assemble-to-order production strategy with products at this level of cost price the product lead-time is vital and becomes an important part of the strategy within marketing and sales. Within SMW there is a new department called Supply Management (SM) that provides the supply of incoming and outgoing material. Within SM there are four sub-departments working with activities such as planning, purchasing, receiving inspection, storage and distribution.

Studiens syfte är att ur ett symbolisk interaktionistiskt synsätt försöka förstå vad som motiverar vuxna amatörskådespelare, amatörsångare och amatörmusikalartister att delta i ideella konstnärliga projekt. Något annat som studien tar reda på är om konstutövandet och gruppen de deltar i har någon inverkan på individens identitet och identitetsskapande. Genom nio semistrukturerade intervjuer skapas en förståelse kring motivationen och identitetsskapandet. Detta förklaras sedan genom motivationsteorier samt teorier kring identiteten, där det visar sig att gemenskapen i gruppen, konstnärlig utmaning och utveckling, deltagandet i den konstnärliga processen, känslan av flow, själva utförandet och dess påverkan på välbefinnandet, viljan att uttrycka sig samt personlig utveckling var de huvudsakliga motivationsfaktorerna. Det visar sig även att både det konstnärliga utförandet och gruppen har en inverkan på individens identitet och identitetsskapande..

A patient simulator for testing anaesthesia machines has been developed at Maquet Critical Care AB, to reduce costly and time-consuming experiments on animals. The device simulates human lungs regarding lung dynamics and volume, uptake of anaesthetic agents and the production of carbon dioxide, heat and moisture. Further demands on the simulator are durability and size; the device shall be compact enough to be moveable.The resulting simulator fulfils the requirements and enables better repeatability and ability to test extreme cases than experiments on animals do.Uptake of the anaesthetic agent is achieved in a active carbon filter and controlled by regulating the flow. The flow is created by a regenerative blower and controlled using a proportional valve. The uptake can be set by the user or by a simple uptake model modified to recursively handle changes in the concentration of anaesthetic agent.Carbon dioxide is fed into the system from a tank by a mass flow regulator.

Development and construction of an electronic Breakout box is the main work for this thesis. The box is a part of a test system for the component Fuel Flow Transmitter and should convert signals to be suitable for a frequency counter. A previously constructed Breakoutbox for this purpose is being old and needed to be recreated. So SAAB Aerotech, Aircraft services, the company for the thesis work wanted to construct a new, more sustainable Breakoutbox adapted to a more modern technology. The signals to the box comes from the transmitter and should be converted to suitable signals for a frequency counter so it can show pulse and time difference between the signals.

The aim of this study is to gain knowledge about the internalcommunication at a public library in Sweden, focusing on the flow of information and the library employee?s role as a source and receiver. This is an important subject because internal communication affects not only the internal work, but also the users. Despite this there are few studies about internal communication in libraries. The research questions used are: How do the employees perceive the role as source of information, and what choices do they make before they spread information? How do the employees perceive the role as receiver of information? How do the employees feel that the information flow works in the organization as a whole?The research is founded on five qualitative semi-structured interviews with the library employees.

Eutrophication of lakes and streams are nowadays a well known environmental problem and implies an enrichment of the nutrients phosphorus (P) and nitrogen (N). Phosphorus is considered to be the most important component for the growth of aquatic plants and leads in too large quantities to an intensification of growth. Phosphate (PO4) is the fraction of phosphorus that can easiest be taken up by plants and thus have the greatest impact on eutrophication. Increased plant growth in lakes and unfavorable conditions for aquatic animals are two examples of negative consequences. A significant portion of the increased nutrient supply to nearby water can be derived to phosphate leaching from agricultural areas, where private sewers and agriculture is two main sources.

In this project the focus has been on the system for recombination at Oskarshamn 2. The recombining systems have on several occasions switched paths due to low pressure before the last ejector that?s feeding the recombiner. Of the mentioned reason, events and several measuring points have been analyzed in this report since the installation of the recombining systems.In order to prove theories and demonstrate what may be the cause of this problem, we used heat balance calculations by the program Probera. Using the program, we can demonstrate that the catalytic process does not reach the desired temperature with the amount of combustible substance.

The subject singing in elementary school changed its name to music in 1955 and with the name change followed a change in the content of the topic. In my study, I examine the perspective of how song as a subjekt has changed in the basic school curriculum texts. As a complement to text analysis, I used interviews in which two music teachers with long service in primary school were interviewed. My survey shows that there has been a clear change of the contents of concept song from being a pure skill where the aim was the vocal line benefits in different contexts and is today a vocal expression that can be embodied in many different ways. Curriculum texts have not been crucial to the changing content of the concept song.

The aim of this thesis is to study young people's views on support, knowledge and change. The eight participants in this interview study are between 14 and 19 years old and they share the experience of growing up in a family where a parent is a substance misuser or mentally ill.Childhood sociology has been used as a theoretical framework. The main finding is that emotional and practical support based on the young person's needs and knowledge based on the ideas of empowerment and agency promotes change. The four most important insights according to the young persons are: My parent has got a problem. It is not my problem.

This study examines social workers' perceptions of their daily work with young people who abuse alcohol and drugs. The purpose of this study was to examine how social workers' perceptions are affected by gender and main drug of choice of activities for young people who abuse. Methodically the study was conducted with qualitative interviews with social workers active in youth substance abuse treatment. The study was carried out a review of previous research in relation to empirical data for the reason to have a discussion of possible explanations of social workers' perceptions and their daily work with young people who abuse alcohol and drugs. The results showed that social workers' perceptions of their daily work with young people are about attitude, reflection and development opportunities in the practical session with the youth.

Drawing on earlier research, and using observations as the method, this study presents a design of a nature playscape for children. Applying outdoor pedagogy to the fundamental structure of a specific location, the study proposes a design of a playscape, over a more obvious design, for instance one based around a quiz walk.The theoretical framework is Gibson?s theory of affordance, and the goal has been to create a "play flow". The study concludes that spatial rhetorics can be an important tool when teaching children about nature..

Self-driving cars are soon to become a reality to the commercial market. A self-driving car does not have a human operator, which enables some interesting characteristics. The main benefits are considered to be:The number of accidents and traffic jams should be reduced.Enhanced comfort.Energy usage could be decreased while capacity could be increased.This study concerns the causes for improved energy efficiency. The reason for improved energy efficiency is mainly because of the variation in terms of acceleration, braking and distance holding are reduced. The vehicles are more intelligent and can work together as a unity.