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2863 Uppsatser om Specific surface - Sida 34 av 191
Utvärdering av digitala provtryckssystem
Six different Digital Proofing Systems from three different techniques have been evaluated as totechnique, printing quality, economy and usability. Digital proof from two paper qualities, coatedand uncoated, has been compared with references printed in offset, to see how good they match eachother. Only two Proofing Systems manage to print on reference paper. The other Proofing Systemsuse special paper for digital proof.Measurements and visuell judgement show that the Digital Proofing Systems visualise referencepictures with quite good quality. Proof optimised for coated paper visualise the colours with goodresult.
Robotstyrning med metoden Sliding Mode Control
The task in this thesis is the steering of one of Saab Bofors Dynamics robots using Sliding Mode Control, a method they never used before. The robot constitutes a system which in addition to perturbations and uncertainties due to modeling imprecision, hold the difficulty of being highly time variant. In order to be able to keep required performance with uncertainties and modeling imprecision present, the use of robust control methods like Sliding Mode Control is necessary. SMC is based on the states of the system being forced to stay on or in the direct vicinity of a hyper plane in the state space which is chosen in a way that gives the system dynamics desired properties. Other advantages with sliding mode are reduced order dynamics on the switching surface and total insensitivity to some uncertainties and perturbations.
Sara Wennerberg-Reuter : att vara kvinna och kompositör kring sekelskiftet 1800 / 1900
This essay presents an example of the musical life of a female composer active in Sweden during the late 19th and early 20th centuries. Through a case study on composer Sara Wennerberg-Reuter (1875-1959), the essay contributes information to her biography, which had been lacking specific details.Wennerberg-Reuter's biography has been discussed regarding traditional roles of women in music, her relationship to her own artistry and other active women composers, and finally the contemporary reception of Wennerberg-Reuter as a legitimate composer. Aesthetical theories prevalent during Wennerberg-Reuter?s life has been applied in these discussions, such as those presented by Citron, Öhrström and Hanson, combined with Citron's additional theories considering masculine/feminine elements in the musical approach.The main conclusions reached regarding the specific conditions enabling a professional status as a composer and woman in Sweden during the given time are;a) the liberal permission by the family to pursue higher education in composing, since this was in opposition to the traditions of the time.b) the access to a network of musically active women, from which a sense of being part of a female community can be created.c) the acceptance from musical institutions such as higher educations, composer's societies and media critics..
Fuktproblem i chilenska småhus
Humidity problems and poor ventilation are factors that we associate with poor indoor airquality which are known to negatively affect health. Such problems have decreased with timein Sweden but, in other countries this is still a major problem especially during winter. InChile, this is most common in the central regions of the country, especially the Strait ofMagellan. This issue is primarily due to surface condensation happening indoors which bringsabout dampness which facilitates the growth of fungus and stains, foul odors, metal corrosionand more. This is due to a combination of poor ventilation and insufficient forms of heatingalong with buildings which have no insulation.
Klimathotet i din tidning : En studie av klimathotets framställning i dagspress och kvällspress
The purpose of this study was to examine the threats from climate change coverage in the media. The climate threats start to appear more frequently in the media and because of that it is important to examine what the media conveys to the viewers and readers since it may effect how people act when it comes to climate threats. In this study newspaper has been examined, more specifically daily press and evening press. The papers chosen was Aftonbladet and Expressen, which represented evening press, and Dagens Nyheter represented daily press.The method applied was both a quantitative and qualitative text analysis. With the quantitative method variables were formed and tested against the material.
Nålen i höstacken : En studie i hur Kalmar kommun kan kommunicera med unga genom sociala medier.
The municipality of Kalmar have a problem, how to reach and communicate with young people in Kalmar. In today?s changing media environment it gets more difficult to stand out and reach audience with messages and especially with the new forms of media that has revealed. Therefore, we have been commissioned to develop recommendations on how the municipality of Kalmar can communicate with young people in Kalmar. The purpose with this study is to investigate which media channels young people in Kalmar use and their attitudes towards social media in particular. We wanted to find out how the municipality should communicate to reach them and what attitude youths have against the municipality in general.
Cykelolyckor i korsningar : Hur kan trafiksäkerheten förbättras?
Stockholm city has recently raised its ambitions for bicycle traffic, the goal is to achieve a larger andsafer bicycle traffic. But cyclists are more vulnerable on the roads than other vehicle users because of the lack of protection. This means that a large proportion of road safety for cyclists is based on the design of the traffic environment. Since most serious bicycle accidents are those that occur in conflict with motor vehicles, and the majority of these accidents occur at intersections, these areas are of great importance forcyclist?s safety.The purpose of this paper is to highlight bicycle accidents at intersections and to suggest improvements in three accident-prone junctions in Stockholm. This is achieved by the study of accident statistics, literature and finally three case studies.The literature study focused on cyclists, traffic safety and traffic safety measures.
Tillförlitlighet hos trafikolycksklassificering
Today?s wind power plants are only compensated for their reactive power consumption at no-load. As the wind power plants grow bigger the amount of reactive power they need also increases. This is no longer a problem that can be ignored, especially as the net owners are beginning to charge the reactive power they transport.In this thesis a couple of different methods of compensation and their prices will be discussed and evaluated. Problems, such as self-excitation, that can occur if one fully compensates the wind power plant will also be brought to surface.
Undervattensvågbrytare - En modellstudie
Today?s wind power plants are only compensated for their reactive power consumption at no-load. As the wind power plants grow bigger the amount of reactive power they need also increases. This is no longer a problem that can be ignored, especially as the net owners are beginning to charge the reactive power they transport.In this thesis a couple of different methods of compensation and their prices will be discussed and evaluated. Problems, such as self-excitation, that can occur if one fully compensates the wind power plant will also be brought to surface.
The Comprehensive proposal for Kosovo Status Settlement utifrån olika synsätt på demokrati, demokratisering och multikulturalism
The purpose of this paper is to analyze Martti Ahtisaari?s comprehensive reportfor Kosovo, CPS, based on theories about democracy, democratization andmulticulturalism. The essay is a way to make a contribution to research on howthe international community can contribute to democratization processes ingeneral, as the CPS gives the expression and democratization of contextscharacterized by multicultural problems in particular. In this paper, we implementa qualitative text analysis of our main material CPS. The qualitative text analysiscan be applied in studies as ours when sought contents of the text are hidden underthe surface.
Doktoranders förhållningssätt till Open Access: En studie av epistemiska kulturers betydelse för doktoranders tankar kring vetenskaplig publicering
The aim of this bachelor-thesis is to study how postgraduates approach open access during times of change within scholarly communication. Our theoretical framework is based upon Knorr Cetinas epistemic cultures and Cullen & Chawners theory that there is a paradigmatic conflict within scholarly communication due to the fact that open access has failed to reach the same level of prominence among researchers as it has within research libraries. We interviewed six postgraduates at Malmö högskola in order to find answers to our research questions. We identified a shared epistemic culture among the postgraduates, which can be explained by the fact that being postgraduates, they all share similar experiences and values. We chose to call this epistemic culture the horizontal epistemic culture.
Källkritik, kognitiv auktoritet och domänanalys: Värdering av trovärdighet
The object of this explorative theoretical study is to compare similarities in three perspectives for evaluation of credibility. The perspectives are the historical method source-criticism, cognitive authority and domain analysis. These perspectives, regarded as intellectual tools for critical thinking in a process of information seeking, by asking questions about credibility related to the social and theoretical context of the intellectual background, can give support in articulating which documents that gives a specific and essential answer to a question. In this sense credibility is seen as a qualitative aspect of relevance. Patrick Wilson argues that we can attain some critical independence towards cognitive authorities and the literature by investigating the social and theoretical topography of a field.
Nätverk och makt - En fråga om makt och relation mellan politiker och tjänstemän
I have studied how network in a broad sense can affect decision-making. The primary purpose is to see if the political initiative somewhere disappears when it comes to understand the relations between power, actors and politics. The study discuss in a theoretical area that concerns the reliability in neoinstitutionalism to use as an analytical instrument. Some criticism is given to the theoretical standpoint in the sense that there is no power perspective included in the theory. I include a discussion about a concept of power, which I include to the theory.
Utveckling av en metod och en utrustning för mätning av bränslesprayers rörelsemängd
A new type of device for measuring thev m& ?rate of fuel sprays from a diesel fuel injector has been developed and the various steps in the development are described. The device works by deflecting all of the sprays from the injector at the same time by using a bell shaped deflector. A load cell consisting of a machined steel part with strain gauges mounted on it measures the resulting force. The shape of the curvature in the deflector bell shape has been evaluated by photographing the flow in a 2D?version of the curve shape.
"Guud, vad tråkigt." : Matematik och elevmotivation
Drinking water is produced from raw water and is either from groundwater or surface water. This thesis aims to find out if the cleaning process of raw water is sufficiently effective. This is important because consumers are otherwise at risk of waterborne infection caused by pathogens. There are three groups of pathogens; bacteria, virus and parasite. These have different characteristics which mean that they require different water treatment to be separated.