The running of gas turbines with low emissions causes high pressure pulsations to arise in the combustion chamber. These pulsations are high amplitude sound vibrations. At some frequencies these are harmful to the gas turbine. Hence these pulsations are monitored to avoid operating conditions where pulsations are specifically harmful. It is necessary to expose the system of known pulsations to verify the functionality of the monitoring process.

The aim of this thesis was to investigate how students, teachers and special teachers use, or may want to use, mobile phones as a resource in everyday schoolwork. An analysis of the result was made base on two main theories. One i Säljös theory about the sociocultural perspective, where artefacts play an important part in the devolopment of human society. The other is Laurillardss thougts of social learning and the use of technology in teaching. The methods used were inquiries and semi-structured interwiews with individuals and groups.

The eld of Brain-computer interfaces (BCI) concerns linking together an external device with the brain of a human or an animal. By doing this the conventional use of a mouse or keyboard can be circumvented, which can greatly benefit people with different types of diseases that cause paralysis or other loss of motor control, such as Amyotrophic lateral sclerosis (ALS). A BCI can also be used for cognitive training of either healthy or mentally impaired subjects to increase cognitive capabilities.In this thesis an implementation of an interface is made against such a device, the Emotiv EPOC Headset. The result is meant to be a stable basis for further study using the device. An in-depth study of the history of EEG and its current use in clinical work and research in the topics of BCI as well as Human-computer interaction (HCI) is presented.

Background: Health economic evaluations are becoming an increasingly important means of analysing which care alternative resource utilisation is the most cost effective. It is a new topic in the medical device industry that causes much uncertainty and unstructured use of the actors involved.Study questions: Why is it difficult to develop, implement and disseminate this standardized health economic evaluation models in medical technology? Is there a possibility to standardize health economic evaluations within the medical device industry?Purpose: The purpose of this study is to investigate the standardization issues for health economic evaluations within the medical device industry.Method: A qualitative approach was used in the form of interviews with five actors that are active or have a connection to the medical device industry. The data collection consists of journals, reports, Internet searches and literature among other things.Conclusion: It is possible to standardize, but with certain restrictions such as the county council's budget, influence of industry-specific factors, lack of knowledge and the important interaction between actors..

Swedish school children exhibit deteriorating knowledge results in terms of reading comprehension. Previous research shows that a method to increase the level of knowledge is the use of evidence-based learning techniques. Test based learning generates what is commonly referred to as a test effect, which proved to strengthen the relationship between learning and memory, as well as being applicable to various test formats. The purpose of this study was to investigate whether test based learning, in terms of learning english words leads to increased performance in a reading comprehension test, more specifically a cloze test. The study was based on a within-group design and was conducted three times over four weeks.

This study means to research the importance and significance of the social and informal learning opportunities offered at a workplace. With Wenger?s theory about social learning and communities of practice as a starting point, this study will create understanding about how teachers at a school comprehend their opportunities for learning within the teacher community. The study is conducted at an independent school in Sweden, and is based on interviews with eight of the teachers employed at the school. The purpose of the study was to research how employees perceive how their social interactions with their colleagues can create learning, and what obstacles they might face along the way.

The mouse (Mus musculus) is the most commonly used mammal in biomedical research and can easily be restrained by both hand and by a device. Restraining animals causes stress that not only decreases the animal?s wellbeing, but may also influence the research results. The first aim of this study was to train mice to voluntarily stand still using positive reinforcement training. Another benefit of teaching a mouse to stand still is that you can avoid anaesthesia for some procedures.

As new ways of using computers are constantly being developed, other ways of interacting are made possible. One of the most desired types of interaction with computers is a touch-screen where the user can actually organize everything simply by using the fingertips. The purpose of this project is to enhance an existing framework with an application that works with a touch-screen device. The application is to be used as a tool for presentational usage. The result is an application where the user by simple means can use a touch-screen to hold a professional presentation.

This thesis has been adjusted because some parts are classified, some sentences might have been changed. Electric bikes are a convenient mode of transport, a good choice when long distances or tough slopes can be an obstacle.The goal of the project was to create a prototype on a locking mechanism with an inductive charger for electric bikes.The idea behind the project was to develop a user-friendly locking mechanism, where the bikes would be charged inductively when they were locked. To implement the project facts about induction, battery charging and locking devices was needed to be acquired. Circuits for induction charging were created and a lock device was constructed. A microprocessor was used to control the entire system.A prototype was designed with a locking device and an inductive charger fixed in a bike rack.The entire project became very wide which resulted in that not all of the parts of the project could be completed.

Background: Learning is important for companies? existence in today?s society and many studies discuss the importance of life long learning and learning organizations. An increased understanding for how the individual learn at the work place is importance to study to gain an accepting for how learning occurs, both formal and informal. Purpose: The purpose with this study is to describe the process of learning at the work place from an individual perspective, with focus on how formal and informal learning occur and interact. The purpose is also to confirm, contradict or develop existing theories.

This paper examines the possibilities of using video games as a tool for education of virtue ethics. By comparing learning aspects in Marc Prensky?s theory Digital Game-Based Learning and Aristotelian virtue ethics, this paper tries to look for similarities in how each theory looks at learning. Prensky?s theory is about how one can use video games in education, which is why it is used here.

The purpose of this work is to design and construct a device able to measure the mechanical attrition of oxygen carrier particles. Those particles are used in chemical looping combustion and in the present situation there is a lack of knowledge in how the attrition process work and in which extension. To find already tested solutions trying to answering this problem a literature study wascarried out and the best solution found was the so called Grace-Davison Jet-Cup method. This method is supposed to emulate the attrition caused by a cyclone separator and its advantages are that it is possible to use small test amounts, 5-10 g, and a thirty minutes long test will be enough to acquire useable results. An device was designed based on the Jet-Cup method with some slight modifications.

AbstractThe aim of this paper is to, through interviews, examine what opinions teachers connected to "Ung Företagsamhet" (Young Enterprise, UF) have on the work of UF compared to contractual and traditional learning. The reason for this is to find out if UF´s way of working is successful in a world, where the definition of knowledge constantly changes. Through qualitative interviews the views of four UF teachers are scrutinised. The results of the interviews indicate that UF works in a way, which contains both contractual and traditional learning, where both directions complement each other in different stages of the learning process.Key words: Contractual learning, pedagogical perspective, Young Enterprise, traditional learning.

The purpose of this work is to design and construct a device able to measure the mechanical attrition of oxygen carrier particles. Those particles are used in chemical looping combustion and in the present situation there is a lack of knowledge in how the attrition process work and in which extension. To find already tested solutions trying to answering this problem a literature study wascarried out and the best solution found was the so called Grace-Davison Jet-Cup method. This method is supposed to emulate the attrition caused by a cyclone separator and its advantages are that it is possible to use small test amounts, 5-10 g, and a thirty minutes long test will be enough to acquire useable results. An device was designed based on the Jet-Cup method with some slight modifications.

This thesis has been adjusted because some parts are classified, some sentences might have been changed. Electric bikes are a convenient mode of transport, a good choice when long distances or tough slopes can be an obstacle.The goal of the project was to create a prototype on a locking mechanism with an inductive charger for electric bikes.The idea behind the project was to develop a user-friendly locking mechanism, where the bikes would be charged inductively when they were locked. To implement the project facts about induction, battery charging and locking devices was needed to be acquired. Circuits for induction charging were created and a lock device was constructed. A microprocessor was used to control the entire system.A prototype was designed with a locking device and an inductive charger fixed in a bike rack.The entire project became very wide which resulted in that not all of the parts of the project could be completed.