Denna rapport beskriver arbetet med utvecklingen av en ny modell för kaplanturbiner. Utvecklingen bygger på två kopplade differentialekvationer som under arbetets gång anpassats och implementerats i turbinmodellen.Modellen beskriver hur vattenflöde och turbinmoment påverkas av avvikelsen från den optimala kombineringskurvan för vinklarna på turbinens ledskena och löphjul, och är anpassad för ett referensaggregat med tillgängliga provdata. Även övriga enheter i vattenkraftaggregatet modelleras och sätts samman med frekvensregulator och elnät för att simulera aggregatets reglerstabilitet i önätsdrift.Verifieringen av turbinmodellen sker genom försök att återskapa de befintliga verkningsgradskurvorna med hjälp av modellen. Resultatet visar en god följning av de verkliga kurvformerna, dock med något lägre maximal verkningsgrad.Verifieringen av önätmodellen sker genom att prova stabiliteten i nätfrekvens och turbineffekt vid stegpålastningar. Resultatet ger en stabilare reglerstabilitet än i verkligheten, men uppfyller ändå förväntningarna på en fungerande modell.This report describes the development of a new kaplan turbine model.

Denna rapport beskriver arbetet med utvecklingen av en ny modell för kaplanturbiner. Utvecklingen bygger på två kopplade differentialekvationer som under arbetets gång anpassats och implementerats i turbinmodellen.Modellen beskriver hur vattenflöde och turbinmoment påverkas av avvikelsen från den optimala kombineringskurvan för vinklarna på turbinens ledskena och löphjul, och är anpassad för ett referensaggregat med tillgängliga provdata. Även övriga enheter i vattenkraftaggregatet modelleras och sätts samman med frekvensregulator och elnät för att simulera aggregatets reglerstabilitet i önätsdrift.Verifieringen av turbinmodellen sker genom försök att återskapa de befintliga verkningsgradskurvorna med hjälp av modellen. Resultatet visar en god följning av de verkliga kurvformerna, dock med något lägre maximal verkningsgrad.Verifieringen av önätmodellen sker genom att prova stabiliteten i nätfrekvens och turbineffekt vid stegpålastningar. Resultatet ger en stabilare reglerstabilitet än i verkligheten, men uppfyller ändå förväntningarna på en fungerande modell.This report describes the development of a new kaplan turbine model.

Denna rapport beskriver arbetet med utvecklingen av en ny modell för kaplanturbiner. Utvecklingen bygger på två kopplade differentialekvationer som under arbetets gång anpassats och implementerats i turbinmodellen.Modellen beskriver hur vattenflöde och turbinmoment påverkas av avvikelsen från den optimala kombineringskurvan för vinklarna på turbinens ledskena och löphjul, och är anpassad för ett referensaggregat med tillgängliga provdata. Även övriga enheter i vattenkraftaggregatet modelleras och sätts samman med frekvensregulator och elnät för att simulera aggregatets reglerstabilitet i önätsdrift.Verifieringen av turbinmodellen sker genom försök att återskapa de befintliga verkningsgradskurvorna med hjälp av modellen. Resultatet visar en god följning av de verkliga kurvformerna, dock med något lägre maximal verkningsgrad.Verifieringen av önätmodellen sker genom att prova stabiliteten i nätfrekvens och turbineffekt vid stegpålastningar. Resultatet ger en stabilare reglerstabilitet än i verkligheten, men uppfyller ändå förväntningarna på en fungerande modell.This report describes the development of a new kaplan turbine model.

This thesis deals with numerical simulation of earth pressure against tubular bridges in the software Plaxis. Plaxis is a FEM (Finite Element Method) software based on numerical calculations for which approximate solutions are developed through an iterative process. The program is specifically designed for soil and rock mechanical tests, such as voltage and deformation calculations in soil.The Royal Institute of Technology conducted in 2005, field tests on tubular bridges of corrugated steel, which was part of Ersa Bayoglu Fleners PhD (Bayoglu Flener, 2009). She studied how two different tubular bridges deformed during installation and filling. Tests and measurements were made during filling.

AbstractSAAB has for a long time used user controlled pilot models in ARES. ARES is a simulation tool used in the desktop environment for simulations and calculations of the JAS 39 Gripen fighter and other aircraft. ARES stands for ?Aircraft Rigid body Engineering Simulation?. To work with these pilot models has been both time-consuming and inefficient.

Store managers and brand owners have realized the benefits of sales promoting activities in-store, which thus have become a common sight for consumers when grocery shopping. Using in-store displays, a brand?s sales can increase by more than 1000 percent. We believe, however, that displays can give rise to additional effects to those previous studies have shown. The purpose of our study was therefore to map possible side effects that a display can generate depending on the strength of the exposed brand.

The aim of this paper is to investigate dominant beliefs and approaches to the "cultural entrepreneur" both within a public context, and also among business owners within the cultural field. What happens when ideas and attitudes in the public sector towards culture driven businesses meets the perspective of individual cultural entrepreneurs?This study is based on analysis of political documents about the cultural and creative industries (CCI) from the European union, national level and regional level. Interviews with six business owners in the field of culture and one representative of the Swedish region with the fictive name ?Alma? has been conducted.

This masters thesis takes the providers perspective on public library story times for children. The main questions are: What perspectives can the providers have? How does the perspective affect the content and how is the story time drawn up? Five story time providers were interviewed about the purpose of their story times, the methods they used and the content they chose. A model with four criteria was used to analyze the result of the interviews. The criteria were: adult criteria, consideration of the childrens view, pedagogical criteria and literary/story time criteria.

The purpose of my study is to examine how children through interaction are recognized and understood by other children and teachers at the preschool for one hour in the afternoon. This study gives voice to what young children in preschool do after snack. The overall purpose of this study is to find out what young children's experiences will be in preschool through interaction. The purpose of my research is to gain knowledge about how the time and opportunity for interaction exists between children 1;7-2;5 years, and educators as well as other children, and how this interaction appears during afternoon activities in the preschool.My research questions are:1) What experiences do children get in terms of their development of identity for one hour in the afternoon? 2) How does the interaction that the youngest children are involved in during the afternoon appear? And how long time does every occasion last? The study is based on the interactionist perspective and systems theory.

To fence in pastures for sheep today is a major cost, especially because of the time required when using current methods. What takes most time is starting to fence off a new area, but to maintain a fence is also a continuous effort. The main function is to keep the sheep at the field.! !By interviewing and observing sheep farmers on how they work with fence today and what their problems was, I got a better understanding of the problem. Also looking at a number of other things like the context, statistics on sheep farming, laws and competition mapping gave a wider image. But the most important part in my research occurred when I talked to experts about sheep behavior.

When we define something as real it will also have real consequences. Media society is developing rapidly; the media?s more central role in our society means that their interpretations and portrayals of the world will have a greater impact on how we look at ourselves and our society.When Swedish Princess Estelle was born in February 2012 she was the first Swedish heir to be been born in what is known as ?the computer age?. This paper aims to examine the reporting of the birth of Princess Estelle and how it was conducted by Swedish news sites, from an ideological perspective. The study is based on qualitative method with ideational analysis and Norman Fairclough?s critical discourse analysis.In conclusion, the news sites portray a positive image of Princess Estelle?s birth and the Swedish monarchy and strengthen the status of the Crown Princess family.

The survey aims to shed light on traditional and contemporary bottom floor frames, their construction and different insulating materials; mineral wool, wood shavings and charcoal. The purpose is to analyze and discuss the similarities and differences as well as the pros and cons with a focus on the construction and the different insulating materials. The work has been limited to comparing two different wooden floor frames. The first one is based on a real floor frame from an older building, this example is presented as the traditional floor frame in this study and are from around 1940. The other floor frame is presented as a contemporary floor frame and is based on wood building type descriptions and literature.

The projecting time in the construction industry needs to become more efficient toshorten the amount of time it takes to project a build. One of the North's leadingconstruction company NCC constuction Sweden AB has developed a form ofcollaboration called ?NCC project studio? that they use in some projects today.My thesis consists in bringing forth the most important aspects of the collaborationform called NCC project studio. The point of this is to use my thesis to help thecompany develop a quality document that can assist them when starting collaborationbased on NCC project studio in the future.The conclusion of my thesis was that much of the focus needs to be on explaining tothe participants what NCC is aiming to gain from working with the NCC projectstudio and also which important parts that needs to be worked on..

Wheat yield depends on the number of ears per m2, the number of kernels per ear and the kernel weight. By knowing the ability of different cultivars to compensate for the different yield components and knowing which yield component that is the most important for the final yield, the farmer can match the cultivar and management to the location. The objective of the study was to investigate how the yield components of winter wheat vary depending on genotype, environment, sowing density and date of sowing.Seven varieties were grown in four locations in Sweden with three different sowing densities and with an early and a late sowing date. On each experimental site, the surviving plants after winter were counted, as well as the number of shoots at early and late spring and the number of ears. Ten ears from each site were cut at three different occasions, starting from the time of blooming, with 200 day degrees between each cut.

Since the beginning of the new millennium, China has opened itself to the outside world and in an enormous pace increased its contacts and relationships with other countries. The trigger to these dramatic changes of economic and foreign policies is the insight that China can no longer sustain its rapid economic growth, largely based on industrial production, on energy and raw materials from China alone.Good relations with African countries have been of highest priority in China?s strategy of ?Going global?. The new African policy is based on the two principles of mutual benefit and non-interference in internal affairs ? as opposite to the West?s strategy of structural adjustment programmes (SAP), which include massive interference in internal affairs.