A clean and affordable energy source for cooking is deficient in developing countries. People rely on fuels that contribute to environmental, social and health problems.Biogas is an alternative energy source and an increased investment in small-scale biogas production can in several developing countries be found. Several projects have started to use the technology in developing countries because of the benefits with biogas. Some cases in the establishment of biogas plants have succeeded and some have not. The study is a literature review supplemented by two field studies.

The aim of this study is to identify factors, which decide wheter you choose to commute with bicycle to work in the winterseason. The study is conducted in Umea, in the norhtern part of Sweden. The study is based on 509 answers from a webbased survey, conducted on municipal employees. The study has investigated which factors that affect different commuting groups from a gender perspective. The groups, which has been compared is motorists, wintercyclist and summercyclists.

In this Thesis the possibilities of designing a larger building that is very energy efficient in the sense that it would not need a conventional heating system are discussed. Solar radiation transmitted through the windows, internal heat from occupants, lamps and electric appliances inside the building and heat recovered from the ventilation system then have to be sufficient for the heating of the building. This study is of general interest since the property company, Akademiska Hus, plans to use this study as a first step in determining if this technique could be used in the future and thus be worth further investments. A building without a conventional heating system of the size investigated in this project has not yet been built.The energy needed for the heating of the building was simulated using VIP+.The conclusions from the study are that it is possible to build large buildings without any conventional heating system. This could be achieved in many different ways, for example by lowering the inside temperature or by using better windows and heat recovery system with higher efficiency.

The report is the result of a master thesis at ENEA AB during the fall of 2009. Itaims to create a specification of flash memory management system which focuseson power efficiency and low RAM usage for embedded systems, and to design andimplement a prototype of such a system to facilitate further development toward thecreated specification. The system used by ENEA today is a Flash Translation Layer(FTL). It has a complex structure which prohibits modifications and customization,therefore a new flash memory management system needs to be developed.The suggested solution uses a translation layer called Metadata FTL (MFTL), wherefile system metadata and userdata are separated from each other in order to improveperformance. The partition holding userdata uses a block-level mapped translationlayer system called Fully Associative Sector Translation FTL.

There is always a need for more effective ways to store energy in order to reduce the human impact on the environment. One step on the way can be the use of flywheels as kinetic energy storage devices. Low frictional losses are essential for a flywheel to be effective. To minimize these losses active magnetic bearings (AMB) can be used to keep the shaft centered instead of the more conventional ball-bearings. AMBs use actuators and a fast control system that needs correct and noise-free measurement data of the shaft position and the current in the actuators to work properly.This thesis explains the process of constructing power electronics and a current measurement system for active magnetic bearings (AMB).

Mobile TV ? is the introduction on the Swedish market about content and customer relationship? This study explores and defines key factors of decisive importance for the introduction of mobile TV in Sweden, using the TAIDA model. In order to summarize and analyze the factors, four interviews with key actors have been carried out. The answers have been compared to generate the two different criteria that are used for presenting four different scenarios. The purpose of the study is to constitute data in the decision making process.

Risk management has become a key ingredient for businesses all over the world. High Reliability Organizations (HRO) has distinguished themselves as experts in this area. By continuously focusing on improving their ability to manage risks they?ve been able to successfully avoid catastrophes in environments where normal accidents can be expected due to complexity and risk factors.The aim of the thesis is to improve the risk management at Apotekens Service by applying theories from HRO and safety culture. In July 2009, following the re-regulation of the Swedish pharmacy market, Apotekens Service AB was appointed national pharmacy infrastructure supplier for the Swedish health care system.

The purpose of this paper is to make an analysis of the urban Roman water system. I have chosen to work with the system as a general field, not as a case study of a single town. In my opinion such a study would not give a proper and fair view of the subject. Therefore, this paper will discuss the different parts of the system, each one for itself and name examples wherever possible, to give a wide survey of the reality of the Roman water supply system. The aim is to give the reader a clear picture of different solutions used in the time of the early Roman Empire and a good understanding of the subject..

TitleFactors for success : a study of school libraries at compulsory schools and how to integrate them in the educationAbstractThis Master's thesis aims to identify success factors for the integration of school libraries in the education. The search for factors are concentrated to three areas: control documents for the school and school library, the Principal and organisation and the collaboration of librarians and teachers.The method consists of three parts: a documetary study, a questionnaire survey and interviews. The documentary study aimed to reveal how concrete control documents for schools and school libraries are concerning pupils' information literacy and school libraries. The questionnaire survey gave a general view of the situation of school libraries in Skåne and to help identify two suitable objects for closer examination. Gunnesboskolan and Rönnowskolan were chosen, and the principals, the school librarians and teachers representing different subjects were interviewed.Our results indicate that there are important factors in all three areas examined.

Tillverkande företag har under de senaste åren ställts inför en förändrad marknadssituation, vilket innebär att de fått förändra sitt arbetssätt från en produktionsorienterad syn till en kundorienterad syn. Den kundorienterade synen innebär att företag snabbt måste kunna ställa om sin produktion för att tillfredsställa kundens behov.MPS-system (Material- och ProduktionsStyrningssystem) är mycket effektiva hjälpmedel vid snabba beslut och omplaneringar, de ger dessutom möjlighet att ge kunder direkt besked om orderstatus. MPS-system tenderar att bli stora och komplexa, de har kontaktytor mot nästan alla delar i företagen.Många företag idag köper MPS-system. Stora företag byter gamla föråldrade system och allt fler små och medelstora företag inför MPS-system. Kommande milleniumskiftet är också en orsak till att flera företag byter sina MPS-system idag.Med detta väcktes intresset för att undersöka om företag som investerar i dyra MPS-system verkligen får ut det de förväntar sig av dem.

The main purpose of this Masters thesis was to examine how the Internet and other electronic sources have affected public librarians use of printed reference sources. During the last couple of years the use of the electronic sources - in particular the Internet has become more established in the Swedish public libraries. Our aim was to examine if and how this has affected the use of the printed reference sources. This has been examined on the basis of the following factors: the gender and age of the librarians and how long they have served in the library. We also examined if the size of the library affects the use of the printed and the electronic reference sources and also which factors that are most important when librarians acquire reference sources.

The purpose of this study is to evaluate the relation between certain chosen fundamental factors (emission trading rights, hydrological balance, interaction with continental Europe, fuel prices) and the spot price at Nord Pool. Particular focus has been put on the trade with emission rights since it is only now their actual impact on electricity prices can be studied. The relationships are measured with regression analysis which includes both R2 and the simulation possibilities of ARX models. The studied period covers 2008 and 2009 with partly daily data and partly weekly data. Owing to the expected higher importance of the fundamentals during the winter months the winter 2008/2009 has been studied separately.

AbstractThis study has two aims:[X] to create an analytical framework consisting of factors that might trigger terrorism[X] to apply the analytical framework on the case of IRA, in order to be able to examinewhich factors that exist behind the appearance of terrorism in the current caseTo reach the first aim the author has studied the theoretical discourse on the complexed issueof terrorism. This has constituted the point of departure for the creation of an own analyticalframework. The purpose of the framework is to bring clearness to why terrorism appears. Theanalytical framework is not only suited for application on the case of IRA, but for applicationon terrorismcases in general. To reach the second aim the framework was applied on the caseof IRA.The aims of this study have been fulfilled through the method of qualitative text analysis.

Business Intelligence may help organizations in making the right decisions byproviding data for analysis which can be presented to decision makers. DataWarehouse which is a central part of Business Intelligence can be built in severalways but the methods presented by Ralph Kimball and Bill Inmons are considered thetwo main methods. The solution provided by Inmon focuses on integrating the entirebusiness into one large database using relational database development. Kimballhowever proposes dimensional database modeling by creating one or more data martsand integrating these using a data bus. Previous research has shown that the quality ofa Data Warehouse can be measured through critical factors such as data quality andsystem quality.

I have done a comparative gender study of Library of Congress Classification from 1900 and 2001. I have also used a hermeneutic method and ideological critics to find out what picture of women the both systems shows. In my comparative study of the both systems I have found low update of classes which relates to women in the new classification system. Men seem to be a norm in the system, because men are not defined in classes related to both men and women. But many classes related to women are named Women as and Women in The study also shows that women are more related to subjects about family and marriage than men are.