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2193 Uppsatser om MatLab clear - Sida 9 av 147

Trädens utveckling efter att de har lämnats som naturhänsyn : tillväxt, mortalitet och strukturell förändring 6-18 år efter avverkning

Today green tree retention, together with leaving dead wood, is a common practice with the aim to reduce negative impacts on biodiversity and environment due to clear-felling. To better understand whether this conservation practice also makes a long-term difference, it is important to know what happens to these trees after harvest. Few studies have made an assessment of what happens to retention trees over a longer time period. In this study I inventoried retention trees that were left at clear-cuts six, twelve and eighteen years ago. I carried out a re-inventory of 57 retention patches (divided into free-standing tree groups, small swamp forests and edge zones) and free standing dead trees, spread over 25 previous clear-cuts in central Sweden.

Beräkningsmodell för osymmetrisk last och produktion i lågspänningsnätet

Produktion i lågspänningsnätet ökar kraftigt, bara under år 2014 dubblerades antalet nätanslutna solcellsanläggningar i Sverige. Utvecklingen ser ut att hålla i sig och då dessa anläggningar ofta är små är det troligt att flera ansluts genom en enfasigt ansluten växelriktare.Ett symmetriskt trefassystem består av tre fasspänningarna med samma amplitud, frekvens och förskjutna 120? från varandra. Laster och produktionsenheter som inte är trefasigt nätanslutna ger upphov till ett osymmetriskt driftfall. Detta arbete syftar till att undersöka hur spänningen påverkas av osymmetriska laster och produktionsenheter i Vattenfalls lågspänningsnät.

Identifikation av produktionsstörningar och obalanser vid tillverkning av golvskenor

Our report procedure identification of instability and disturbance in an automatic manufacturing line of processing and assembling of chair sliding rails at Sapas manufacturing department in Vetlanda.To obtain a stabile ground we have mapped the material flow to receive a comprehensive view and to visualise connections.We have examined cycle times at different stations in purpose to identificate bottlenecks. The result of our examination showed that the bottleneck of the line was the brush station. This leads to that the expected bottlenecks identificated by Sapa gets a delay time and by that a longer cycle time.Interruptions has a clear negative influence at the line performance so we have also assemble data through the operators report list and compiled these in order to find out the interruptions effect on the line. The outcome during our assembled period was that the reported interruptions corresponded about 30 percent of the total available production time. This has a clear negative effect on the line productivity and efficiency as we have calculated in order to get the present status..

Vad är kommunism : En diskursanalytisk studie av politikers och läromedels syn på kommunism

AbstraktThe purpose of this study is to examine how Swedish politicians and textbooks in social science choose to describe communism, this in order to see if there is a main discourse that controls what communism is associated with. The study is structured by the following question: How does Swedish politicians and textbooks choose to describe communism, is there a main discourse that controls how language is used? The method chosen for the analysis is discourse analysis. Chain analogy is used to structure the studied texts discursive content. Four textbooks in social science are analyzed and a number of public government documents that contains discussions about communism and the agency Forum för levande historia.The analysis shows that there is a clear discourse among leading politicians that dictates that communism is to be associated with a spectrum of negative words and concepts, but when it comes to the textbooks there isn?t an equally clear discourse and the textbooks differ among themselves in general content.

Man är bättre? : - En kvalitativ studie om manliga socialsekreterare i minoritet

During the emergence of social work, women have been considered to hold greater competence in social relations. Approximately 80% of social workers in Sweden are women, which leaves men in a minority. Men are considered to have advantages in female-dominated professions because of their unique and desirable abilities. This paper aims to adress men's underpresentation in the female-dominated social work profession. The purpose is to explore the attitudes and experiences of men working in a minority group.

Utvärdering av grafisk utvecklingsmiljö för programmering av signalprocessor

This work aims to evaluate the possibility of using a graphical programming language to develop software for a digital signal processor. A fixed-point digital signal processor called Blackfin BF-537 is used for this. Instead of using conventional programming languages, like C or assembler, for software development the possibilities to use a graphical environment to fill the same purpose are examined. The development environment primarily used is NI LabVIEW, but also the use of Mathworks Matlab Simulink is investigated. A variety of programs consisting of various signal processing operations and utilities are developed using these development environments.

Ökad resurseffektivitet i kraftvärmesystem genom säsongslagring av värme

Increased resource efficiency in an energy system could result in large economic and environmental benefits. Tekniska verken i Linköping AB (Tekniska verken) is responsible for the district heating network in Linköping. Their vision is to create the world?s most resource efficient region. An important step towards this vision is more efficient usage of produced heat, something which could be achieved through integration of a seasonal heat storage in the energy system.

På andra sidan gatan : En kvalitativ studie om unga homosexuella män och deras upplevelser av att vara öppna med sin sexuella läggning i Stockholm

AbstractThe purpose of this study is to investigate how seven homosexual men in the age between 18 and 26 years experience openness with their sexuality in Stockholm. We wish to investigate how these men experience and handle their everyday life in a community characterized by a heteronormative foundation. We will focus on how they handle their openness in an urban environment and if they experience any limitations dependent on the situation or surroundings they live in, and also how they handle these situations. The study is hermeneutically inspired where seven life story interviews are analyzed within the theoretical frameworks provided by Connell, Goffman, Foucault and Queer theory.The results show that the respondents? openness varies depending on a variety of factors where surroundings, situations and previous experiences are influential.

Vägen till framgång : hur kommuner använder sig av livsstilsmarknadsföring och platsmarknadsföring som differentieringsmetoder

The purpose of this essay is to examine how the two Swedish municipalities, Sigtuna and Nyköping, work with marketing. The study has primarily focused on how these two municipalities worked, consciously or non-consciously, with lifestyle marketing and place marketing. The research-questions that this essay wants to answer are;What is lifestyle marketing and place marketing?Do municipalities use these types of marketing, and who is this marketing directed to?How and why does municipalities use lifestyle marketing and place marketing?To answer these questions, phone interviews were conducted with several important employees within the two municipalities. The results of this study show that the different municipalities have both been using lifestyle marketing, but on different levels, in Sigtuna, it was a strategic choice, whereas in Nyköping, it evolved by itself and was not a conscious choice.

?Vi sitter i kl?m fr?n alla h?ll och kanter. Det ?r v?r vardag.? En kvalitativ studie om chefers digitala mognad i offentlig sektor

This study examines how managers in the public sector experience and manage their digital maturity in the context of digital transformation. The study is based on qualitative interviews with twelve managers and three developers in a municipality in western Sweden and is analyzed based on a theoretical framework that combines individuals digital maturity (DIMI model) with organizational conditions. The results show that managers' digital maturity is influenced by both individual and organizational factors. At the individual level, the importance of digital competence, self-efficacy, and willingness to participate in and lead change are emphasized. At the same time, organizational conditions such as coordination, resources, technical support and clear governance are required.

Sverige och smygrasismen : En retorisk analys av ämnena integration och invandring i svensk press

The purpose of this study was to investigate how three Swedish news publications writes about integration and immigrants. The news articles were analyzed with a rhetorical analysis. The method was supplemented with theories of media and ethnicity, agenda setting theory and gatekeeping theory. This study resulted in the conclusion that racist discourses are found in the three news publications, regardless of political color, writer or article genre. Many of the articles makes a clear division of "us and them", where "them" is defined by the text's "us", who are often Swedes.

Hänsyn till mark och vatten vid slutavverkning : en fältstudie på känsliga marker

The purpose of this study is to investigate if there is enough consideration taken to sensitive forest areas close to water or wetlands during clear cutting assignments, and to estimate the extent of damage made by forestry machines used at that time. A field and literature study is used to show how to improve and prevent the damage made in the wake of the machines. This study is made for Sydved, and shall culminate in a policy to prevent ground damage during their clear cutting assignments. The areas which were part of the field studies were clearcuttings on fine grained soil close to water and wetlands. The purpose was to find out if the water had been affected, what had been done to prevent ground damages and what more could have been done. The results of the field studies show that more work needs to be done to reach up to expectations. More information about the assignment area, better planning of sensitive regions, and strengthening of the main haul roads with brush are some of the improvements that can be done. There is also a need for more exact guidelines, follow-ups and education for everyone involved to have the same goals and understanding to prevent ground damage..

Reklamens värde: En kompletterande syn på advertising- och brand equity.

At several occasions, an important question has been brought forward within the world of advertising and media. This is the question of whether or not ?good? advertising should be encouraged by the media. The question has an origin in a belief that such advertising can create values not only for the advertiser, but also for the medium. Although this question has arisen in business media, and although many managers work from the assumption that such relationship exists, there are none or little proof that it actually does.

attraktrivitet och regionplanering : Hur ska osby kunna ha en positiv ekonomisk tillväxt och befolkningsutveckling i region skåne?

 AbstractAttractiveness may be defined by a variety of factors but you should see it in the public planning as it is to have a positive population growth and economic growth, through working with communications, service, housing, to name a few. This is done primarily through direct projects both within the municipality and through various partnerships between local and regional level. The progress we have seen in recent years has gone more towards a clear shell level, particularly a regional level where these have had a much greater freedom with clear geographical boundaries in between each other. Within these regions there are also clear regional groupings that have common interests and competing between each other. In my thesis, we have been distinguished including three levels of scale levels.

Modellering av aktivt stötdämpningssystem med MR-dämpare

I denna rapport redovisas modellbyggande av ett aktivt stötdämpningssystem till en formulabil. Stötdämparna som har använts i modelleringsarbetet är av MR-teknologi (Magneto Rheological). Dämpningskaraktäristik för MR-dämparna har tagits fram genom tester samt databehandling med mjukvaran Matlab. Genom användandet av modellerings- och simuleringsprogrammet Dymola (Dynamic Modelling Laboratory) med dess olika komponentbibliotek har flera delmodeller skapats för stötdämpningssystemet. Dessa modeller är baserade på fysikaliska relationer och de sätts sedan samman till en hel modell av systemet.

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