Ocean Thermal Energy Conversion, OTEC, is a sustainable energy conversion technology that is not yet commercialized. OTEC is a technology that utilizes the temperature difference in oceans between the warm surface water and the cold water at 1 000 m depth to run a Rankine Cycle. This technology can produce electricity and provide synergies like fresh water, air conditioning and aquaculture. A simulation program for three alternative OTEC systems has been created in order to decide which OTEC system is most profitable; closed, open or hybrid system. In this simulation a production cost analysis is performed in order to investigate and decide which one of the three systems that has the lowest production cost. The production cost analysis also analyzes if the profitability is affected by the size of the facility. After these analyzes, the most profitable of the three different OTEC-systems is expanded by an installation of solar collectors in order to see if the thermal efficiency is improved. The result shows that the most profitable system varies with the size of the facility.

The purpose of this qualitative study is to create an understanding for if and how nonverbal communication and the learned gender structure influence interactions during employment interviews for executive posts. The study is conducted from a social constructivist perspective where it is argued that the individual is created through social interactions. In order to obtain understanding for social gender structure and nonverbal communication in social interactions observation has been utilized as a method. In addition an observation matrix based on nonverbal behavior and masculine and feminine hexis has been established. The results include both the specific individual?s and the general interactions that took place during the employment interviews.

This study aims to examine the effect management control systems have on which goals health centers prioritize. The management control systems of one privately owned and one publicly owned health center have been studied through a qualitative case study. Robert Simons (1995) framework with four levers of control (diagnostic control systems, interactive control systems, belief systems and boundary systems) has been used to structure the study. For both health centers we found a conflict of interest mainly between the diagnostic control system and the beliefs system, where the diagnostic control system is biased towards quantitative goals and the beliefs system is mainly biased towards qualitative goals. However, despite the unbalanced levers of control the studied health centers have been able to reach a well functioning compromise between quantitative and qualitative goals..

This master thesis covers the seasonal planning of a small scale hydropower system. The system in this study is owned and operated by Mälarenergi Vattenkraft AB. The total system consists of 4 different main rivers with 24 hydropower stations and several dams. The total installed power in the system is 43.75 MW. Most of the hydropower stations are regarded as small scale hydropower stations and thus entitled to green certificates.In this report the issue of planning is formulated as an optimization problem.

Webbaserade system har tidigare kunnat beskrivas som relativt okomplicerade webbsidor och utvecklingsarbetet har många gånger varit ostrukturerat. Systemen har med tiden blivit mer komplexa och webbmiljön har övergått till att bli en plattform som kan stödja alla aspekter av organisatoriskt arbete. Vi vill i denna uppsats ge en inblick i utvecklingen av webbaserade system. Litteraturen beskriver olika faktorer som påverkar utvecklingsprocessen. Vi kommer att belysa ett antal av dessa faktorer samt åskådliggöra hur utvecklaren arbetar för att ta hänsyn till dem.

The aim of the study was to investigate how Parkinson?sdisease affects the individual?s ability to give feedback in face to faceinteraction with a significant other and how this affects the conversationalinteraction. The study applied a qualitative approach, using ConversationAnalysis and Activity based communication analysis with altogether fourdyads. The results showed that Parkinson?s disease may have an effect onthe ability to give feedback, shown in an atypical pattern of feedbackpreventing the fulfillment of individual goals in the interaction.

The mining industry, in terms of ore excavation and metal production, is and has been important to the Swedish economy. In connection with the ore excavation process, large amounts of partly sulphidic waste are produced. When the metal sulphides are exposed to air and water they are eventually oxidised, which leads to the formation of acidic water with high concentrations of metal cations and sulphate ions, so called Acid Mine Drainage (AMD). This water may reach the nearest surroundings and cause negative environmental effects. By covering the waste with soil or water, the oxidation process can be minimised. At the Rävlidmyran mine in the county of Västerbotten open pit mining took place between 1951 and 1991.

According to recent research the basics for a good body posture is balance between the muscles, if unbalance originates this can be strengthen by gymnastics when most of the practise performs only in one direction. Because of limited research in the area was an explorative study conducted. The purpose of the study was to inquire if exercise adjusted to the individual contributes for balanced muscles and if it contributes for a positive or negative development for the team.On the basics of that the team is not equable an other team in the area has the results for two different periods been measured, during the first period the exercise continued as usual but during the second period each gymnast (n=9) received an individual strength- and stretch program that was performed during the teampractise twice a week. The gymnasts were tested in areas that are imported for them as body posture, balance between the muscles, vigour, range of movement, balance, the running and coordination. The results showed on that the difference is largest between test two and three, except the coordination and balance which did not show any particular change.

AbstractThe Swedish public school system claims to be a school for all. This means in particular that school is, not only open to all children between 7 and 16 years, but also that compulsory schooling prevailing. Our society's development is making increasing demands on the theoretical capacity, and school's goals aligned in the same direction. The proportion of pupils failing to achieve the goals are increasing in number, a failure which has major implications not only for the individual student but also for society at large. This study's focus is directed against a group of students where the reason for this is a lack of ability to abstract thinking.

Trots otaliga digitala alternativ används fortfarande analoga system som whiteboardtavlor med tillhörande whiteboardpennor och post-it lappar vid t.ex. projekthantering. I denna studie undersöks användares motiv till varför de väljer att använda analoga respektive digitala system, samt vad de anser är viktigt vid utveckling av gränssnitt till digitala system.Syftet med studien är att, ur ett användarperspektiv, visa fördelar, nackdelar samt interaktionsmöjligheter hos analoga respektive digitala system, och att redogöra för vad som bör tas i beaktande när analoga system ska digitaliseras så att fördelaktiga egenskaper hos det analoga systemet kan överföras till det digitala.Anställda på det IT-företag studien genomförts i samarbete med har intervjuats, och resultatet från dessa intervjuer har sammanställts och analyserats med hjälp av en för studien framtagen analysmodell, vilken baserats på den litteraturstudie som gjorts. Vid analysen framkom att det främst är enkelheten och överskådligheten hos analoga system som gör att dessa föredras. Det som anses vara mest fördelaktigt hos digitala system är möjligheten till hög funktionalitet, att persistent kunna lagra information och att kunna utnyttja denna på olika sätt, samt möjligheten att kunna dela information.Beträffande de intervjuades åsikter om analoga respektive digitala system kan ett mönster ses, att de egenskaper de nämner som positiva och som fördelar hos analoga system ofta benämns som negativa och som nackdelar hos digitala system.

One of our reasons is that we think the subject usability is interesting, is that we think it is an important. Usability is maybe the most important element when you develop or choose a system because it can save money for the companies and give the users a more delightful and better work environment. The aim of the investigation is to find out if the implementation of a web portal is a direction to reach higher usability in a complex system that consists of several different interacting applications. The objective of our investigation is to show if the implementation of a web portal is a direction to reach higher usability in a complex system that consists of several different interacting applications. In our case we will try to see if Karlshamns AB:s recently implemented web portal is more useful than their previous application (Movex with interacting programs) One thought with the report is to give the system developers a perspective of how the usability can be in-house made applications versus standard applications. Also companies that not have any computer- or department for development and which are thinking of get hold of, change, replace or complement their system and applications, may have some interest in our thesis. We have used a qualitative investigation method in our study to answer our hypothesis.

System Andersson AB is a company located in Jönköping that works with developing computer systems for the mechanical engineering industry. As of today, when this report is written, the company is working on the development of a new Manufacturing Planning and Control (MPC) system. This new system aims to create not only a user friendly interface but also a modern, stylish interface. To achieve this, the company has decided to work with a, for them, new application framework; Windows Presentation Foundation (WPF).System Andersson is well known for developing systems for different kinds of touch screens, this project is no exception. For this new user interface the company wishes to implement different types of Drag&Drop functionality.

Bandura definierar (1997) outcome expectancy som individens skattning av sannolikheten att ett beteende ska leda till ett specifikt utfall. Utöver individens skattning av sitt eget beteendes följder (individual outcome expectancy), är hennes bedömning av sin grupps möjlighet att nå ett specifikt utfall (collective outcome expectancy) en del av begreppet (Riggs & Knight, 1994). Studien syftar till att undersöka huruvida arbetsrelaterad- self efficacy, locus of control och collective efficacy predicerar outcome expectancy. En enkätundersökning genomfördes med 102 deltagare från olika yrkesgrupper. Resultatet visade att arbetsrelaterad- self efficacy och locus of control samvarierade med individual outcome expectancy och att collective efficacy predicerade collective outcome expectancy.

Syftet med uppsatsen är att belysa möjligheter och begränsningar med olika tekniska system för att identifiera kontakter på stridsfältet, främst med avseende på att minska risken för vådabekämpningar. Uppsatsen skall också belysa om införande av tekniska system för identifiering av kontakter är den enskilt bästa metoden för att undvika vådabekämpningar. Syftet är att läsaren skall uppnå en förståelse för vad olika typer av system för identifiering kan bidra med för att minska risken för vådabekämpningar. Utöver detta belyses andra nackdelar och fördelar med de olika tekniska systemen förutom just inom området identifiering.Uppsatsen beskriver olika händelser där vådabekämpningar skett och kopplar dessa mot hur olika tekniska system eventuellt hade kunnat minska risken för att vådabekämpningen skulle ha skett. Uppsatsen beskriver också ett antal olika tekniska system för identifiering av kontakter på stridsfältet..

The aim of the study was to examine individual staff experience and management of threats and violence in the acute psychiatric department for children and teenagers in Uppsala. Previous research shows that the experience of threats and/or violence is individual, and that it is difficult to distinguish between these concepts. Research shows that it is particularly vulnerable to work in psychiatry when mental illness is a cause when threats and violence occurs. Threats and violence can result in different consequences for the individual. The study is based on qualitative interviews and the material was collected in the autumn of 2012 at Akademiska sjukhuset.