The goal of this paper is to find out how solar cells can improve energy efficiency on-board M/S Sydfart. The paper is based on a number of energy measurements on board the M/S Sydfart. The solar surface is calculated by measuring the available space for installing solar panels. Global radiation data is taken from STRÅNG's database, the data is then used to calculate the theoretical power produced by the solar cells. Energy efficiency is analysed in two ways.

TAT?s Cascades and Kastor are programming languages used to create graphical user interfaces (GUI) for mobile phones. TAT Tutorials is a dynamic, interactive tutorial site for these xml-based programming languages. An editor will be available for download to enhance the learning process..

The aim and goal of this work has been to design and implement a voltage reference network for a 12-bit PSAADC, Parallell Successive Analog to Digital Converter. A chip containing the design has been sent away for fabrication. Because of the long processing time, no measurement data are presented. The main specifications for the voltage reference generator is to generate stable reference voltages with low noise and a good PSRR. Efforts has also been made to minimize the power consumption..

Abstract CORDIC (Coordinate Rotation Digital Computer) is an iterative algorithm for the calculation of a two-dimensional vector in circular, linear or hyperbolic coordinate systems. This paper presents a survey of known CORDIC algorithms and architectures for the rotation and vectoring mode in the circular cordinate system. In addition an implementation of the differential CORDIC algorithm in VHDL has been done. The implementation is designed to keep the fast timing and throughput characteristic known for on-line redundant arithmetic..

This report deals with the modeling of a part of the communication system based on the IEEE 802.11a standard which represents the next generation of wireless LAN with greater scalability, better interference immunity and significantly higher speed, up to 54 Mbps. 802.11a uses Orthogonal Frequency Division Multiplexing (OFDM) where modulation is performed by an IFFT and the demodulation by an FFT. After modeling the FFT in Matlab and C, the FFT implementation has been validated using a soft microprocessor core by Xilinx (Microblaze) and the results were compared..

Information technology (IT) penetrates more and more areas in the community. The Commission for Information Technology is of the opinion that the use ought to be widespread but states that this is not yet a reality. Differences exist between groups, e.g. between women and men. The purpose of this Master's thesis is to examine how female university students enrolled in two different programmes experience and use IT and to compare this with society's picture of the relationship between IT and women.

The aim of this study is to examine reading on the MobileReadforums. The term ?to read? is extended to also cover bookcollection and usage of new technology such as mobile readerunits.A catalyst for reading on mobile reader units seem to be the needto always have access to the personal e-book collection. Apartfrom being a source for reading the collection of e-books alsoserves the purpose of extending the members self-esteem.A large portion of the activities on the MobileRead forum isaimed at making new technology comprehensible with the help ofprotocols to determine the usage of that technology. The processof making protocols also seem to be another way for the membersto extend their self-esteem.Traditional libraries are mainly seen as one of many sources for ebooks.Librarians are mostly perceived as being service mindedbut lacking in e-book knowledge.There is also a risk for miscommunication as the library hasdeveloped other protocols that defines an e-book and how itshould be used.This study is a qualitative analysis based on forum posts collectedfrom the MobileRead forum..

The use of information technology (IT) has expanded to be available in large parts of the society.With reference to this mobility has become an increasingly used term, which reflects changes in our lifestyle, travelling and mobile artefacts. The technology development that has occurred in recent decades has made it possible for people today to be more mobile than before as they no longer are tied to a fixed workplace. Mobility has changed the ways to lead, coordinate andmeasure work productivity in organizations. It has also added new ways of working. The mobile development also means more challenges and changes in today?s modern organizations.The purpose of this paper is to analyse how employees in a consulting form use mobile technology in a work context, how they interact with others and how individuals reason about mobility.

Where is technology heading? And how will our behaviors towards these new innovations look? This project questions the direction of ?beyond smart? products, through scenarios within our everyday life. The work is both critical and speculative. Speculative in the sense that it is speculating in how a future scenario with ?beyond smart? products would look like.

Audience responese technology (ART) often called clickers are becoming more common, not only internationally but also at Swedish universities. No direct Swedish research has been identified, this is however a major area of research internationally. There is both research on clickers positive effect on study results and how students feel about using clickers. This study has taken a Swedish translated version of Cheesman, Winograd, and Wehrman?s (2010) survey to investigate how perception of clickers differ between students in Disciplinary Domain of Medicine and Pharmacy and Disciplinary Domain of Science and Technology.

As background for this study stands the debate and discussion in the society around the tablet as a pedagogical tool in preschool. The purpose of this study is to obtain and analyze 69 preschool teachers? opinions about the tablet?s introduction and use in preschool. The study also investigates the preschool teachers? opinions about their mission for multimedia and technology in the preschool curriculum, Lpfö 98, reviderad 2010.

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This report is about how HDR (HighDynamicRange) can be created and used in combination with Tone mapping. This work has been carried out together with Kapsch TrafficCom AB in Jönköping.The objective of this project is to:Evaluate and investigate the effects given to pictures by HDR and tone mapping.Evaluate if the technology may lead to improvements in Kapsch?s systems.To construct a program which is able to handle some form of tone mapping or HDR-algorithm.These questions will be answered in this report:What kind of effects has HDR and tone mapping-algorithms on pictures?Can the HDR-technology give better data in Kapsch?s systems?The research method used in this report is called action research. This means the authors has investigated the technology by reading different documentations and by testing different algorithms to see what kind of result they give. The report describes some of the tests made to see if the technology is appropriate in Kapsch?s system.There is two smaller reports made by the authors which documenting some of the work.The first report describes the work with different settings for a camera to create pictures with HDR-quality.

From underwater boat to submarine ? The development of the Swedish submarine service 1945-1960 The scope of this essay is the development of the Swedish submarine service during the period 1945-1960. The aim is to answer the following questions:- What kind of new technology did Sweden acquire when salvaging the German type XXI submarine off Gothenburg at the end of World War II?- In what respect did this technology differ from that of the Royal Swedish Navy and did it subsequently contribute to the tactical and operational development?- What tactical and operational development was accomplished between 1945-1960?The timeframe, 1945-1960, was chosen since this is when the analysis of the salvaged type XXI submarine and related effects was conducted. Furthermore, it is also during this time that the Swedish submarine service is beginning to evolve as a result of the new knowledge mentioned above and the experiences made by both the allies and the Germans during World War II.The theoretical framework primarily refers to the theories on naval warfare by Sir Julian Corbett.

This is a report for a bachelor degree thesis in electronics at Umeå university. The target was to design a fully functional PCB-layout and then solder components to it. In order to do that I had to first proofread a schematic of the system to find things that were not correct and correct them. The project is a cooperation between the author and the company Calmon Stegmotorteknik. During the whole project the people at Calmon supported the author with the appropriate knowledge to complete the tasks.