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5544 Uppsatser om Multi-state model - Sida 1 av 370
Dynamisk modellering av VSC-HVDC : En statisk och dynamisk modelldesign o?ver VSC-HVDC fo?r implementering i ARISTO
This thesis treats the subject of a complete steady state and dynamic model of the VSC-HVDC covering both the AC and DC system-side of the converter. The topology of the model is recreated after the scheduled transmission line in the south of Sweden, called SydVa?stla?nken. The topology covers both a simple two terminal connection as well as a multi-terminal one. This model is to be implemented in the power system simulation program ARISTO.
Överlevnadsanalys i tjänsteverksamhet : Tidspåverkan i överklagandeprocessen på Migrationsverket
Migrationsverket är en myndighet som prövar ansökningar från personer som vill söka skydd, ha medborgarskap, studera eller vill jobba i Sverige. Då det på senare tid varit en stor ökning i dessa ansökningar har tiden för vilket ett beslut tar ökat. Varje typ av ansökning (exempelvis medborgarskap) är en process som består av flera steg. Hur beslutet går igenom dessa steg kallas för flöde. Migrationsverket vill därför öka sin flödeseffektivitet.
Utveckling av en Multi-Zonsmodell för NOx Bildning i Diesel Motorer
This thesis work is the last part of the Master of Science education inmechanical engineering at KTH, Stockholm.The aim of this project was the development of a Multi-zone modelfor NOxformation in Diesel engines. Because of the stringent emissionlegislations, great effort is made to decrease the fuel consumption and theharmful emissions of internal combustion engines. Computer simulationsplay a decisive role in this context because they substitute the expensiveand time-consuming laboratory tests.The model is based on a multi-zone approach and uses the wellknownExtended Zeldovich Mechanism which gives a relation to calculatethe NO formation rate using the concentration of different gas speciesinvolved in the process.All the most important phenomena involved in the Diesel combustionhave been modelled. A special attention is then paid to the equilibriumconcentration calculation; this is a significant part of the model whichstrongly influences the following steps.A Simulink model has also been developed. This second version isbased on the previous model and it is made especially to allow theconnection with other external softwares, GT-power in this case.
Sketching a set of multi-touch design principles
Today multi-touch technology is the basis for many new techniques designed to improve
interactions with computers and mobile devices. It seems that multi-touch screen interface
makes the user handling very natural in the sense that there is no need for a manual in how to
interact with the object on the screen.
The aim with this paper is to establish a fundamental set of design principles intended
specifically for large multi-touch interfaces. To reach this goal we have implemented a couple
of sub-goals beforehand:
It was essential that we acquired a good understanding of the current state of the multi-touch
interface and the different implementations that exist today. To make this possible we
constructed a multi-touch display, "Rosie". Knowing how the hardware is produced today will
help us understand the limitations and also the possibilities of the design implementations
today and in the future.
We also needed to devise a sound interaction design process that conveys the modern
designers work.
Energieffektivitet Hos Dubbelskalsfasader
Today multi-touch technology is the basis for many new techniques designed to improve
interactions with computers and mobile devices. It seems that multi-touch screen interface
makes the user handling very natural in the sense that there is no need for a manual in how to
interact with the object on the screen.
The aim with this paper is to establish a fundamental set of design principles intended
specifically for large multi-touch interfaces. To reach this goal we have implemented a couple
of sub-goals beforehand:
It was essential that we acquired a good understanding of the current state of the multi-touch
interface and the different implementations that exist today. To make this possible we
constructed a multi-touch display, "Rosie". Knowing how the hardware is produced today will
help us understand the limitations and also the possibilities of the design implementations
today and in the future.
We also needed to devise a sound interaction design process that conveys the modern
designers work.
Modeller för studier av ursprungsmärkt el
The EU has decided that it should be possible for consumers to get information about the origin of the electricity they buy. Therefore, there is a need to examine different systems for electricity disclosure. In this thesis two ways of disclosure have been studied:? Certificate system. A certificate system involves two parallel markets, one for trading electrical energy and one for trading certificates of origin.? Separated Markets.
Flerkanalspublicering och dess påverkan på journalisters arbetssituation : en studie av flerkanalspublicering i olika stadier
Purpose/Aim: The aim of this thesis was to examine how multi channel publishing in different stages effect the work for journalists.Material/Method: The thesis is based on ten case studies selected from the literature and one conducted especially for this thesis. The case studies have been categorized according to a model that describes three strategies for multi channel publishing. The first strategy is to have a primary publishing channel, the second is to have separate editorial staffs for all publishing channels and the third is to treat all publishing channels equally.Main results: Journalists working for companies using the first strategy have not experienced any major differences in working conditions or work practices. For journalists employed by companies using the second strategy for multi channel publishing the effects on the journalists was noticeable but not major. The effects on journalists in companies using the third strategy are mainly stress and an uncertainty regarding how to use special media techniques..
Den moderna flerenhetsfranchisetagaren: En studie i utformandet av kontrollsystem hos växande franchisetagare
Franchise theorists have to a large extent failed to keep up with the actual development in global franchise chains. The recent emergence of fast growing multi-unit-franchisees has fundamentally been ignored, and it has been claimed that the new phenomenon can be regarded as a mere replication of the franchisors? structure and control system into sub hierarchies. This study however, suggests that the reality is more complex. Through conducting case studies of two Nordic multi-unit-franchisees, new theories are built explaining how and why control systems are designed the way they are.
Multi-use arena i Sollentuna
A place that mixes different kind of uses of space. Two main theatres inside and a lot of smaller rooms for different venues. A methaphor the tide have strong impact of shaping the building.
Feldetektering för diagnos med differentialgeometriska metoder -en implementering i Mathematica
Diagnosis means detection and isolation of faults. A model based diagnosis system is built on a mathematical model of the system. The difficulty when constructing the diagnosis system depends om how the model is formulated. In this report, a method is described that rewrites the model on such a form that the construction of the diagnosis algoritm is easy. The model is transformed by two state space transformations and the result will be a system on state space form where one part of the system becomes easy to supervise.
Den korta armen : En studie i mångfald och armlängdsavstånd i kultursamverkansmodellen
The name of the study means ?The short arm - a study in diversity and arm?s length in the cultural collaboration model?. Right now there is a reform in the Swedish cultural administration where the responsibility for handing out state funds and grants to cultural organizations is changing from the state government to the local regional governments. The purpose of this study is to map the organisational changes caused by the reform and investigate how this affects the regional policies concerning cultural diversity and the arm?s length principle.
Lokaliseringsutredning för nytt hotell i Sandvikens tätort med stöd av multikriterieanalys
The municipality of Sandviken is in a state of strong growth. This affects the need for more hotel rooms in Sandviken, in a way that it?s profitable to invest in a new hotel. Sandvikens largest company, the steal industry Sandvik AB, grows just like Sandviken, and have great influence on the need of more hotel rooms. Today there are three hotels placed in Sandviken, and these hotels aren?t enough when the pressure of hotel guests is at its top.The purpose with the project was to analyse the criteria?s that are important for localization of a new hotel in the Sandviken, and to clarify what kind of hotel Sandviken is in need of.
Kunskap om marknaden : Besöksattraktioners vikt och dess relation till turistmålgrupp och resesyfte
The name of the study means ?The short arm - a study in diversity and arm?s length in the cultural collaboration model?. Right now there is a reform in the Swedish cultural administration where the responsibility for handing out state funds and grants to cultural organizations is changing from the state government to the local regional governments. The purpose of this study is to map the organisational changes caused by the reform and investigate how this affects the regional policies concerning cultural diversity and the arm?s length principle.
Mångkulturalitet i skolan : en grupp gymnasielärares förhållningssätt till att arbeta med etnisk mångkulturalitet i skolan
The aim of this study has been to investigate a group of upper secondary school teachers? approach to work with the ethnic multi-culturalism that characterises the Swedish society of today and to point to the obstacles and possibilities the teachers see to work with this. With the help of interviews with eight teachers satisfying results could be reached. The results showed that it was possible to distinguish three different ways to think and act when it comes to the work with ethnic multi-culturalism in school and teaching. The approaches entailed different consequences on the way the teachers conduct their teaching.
Feldiagnos för RM12 baserad på identifierade modeller
The jetengines of today are growing in complexity. Reliability for aircraft engines are of extreme importance, mainly due to safety reasons but also economical ones. This master thesis deals with faultdiagnosis in the turbine section of RM12, the engine used in Saab/BAe's Gripen. Three different faults which can occur in the turbine section was studied. These faults are: clogged fuel nozzle, hole in outlet guide vane and sensor fault.