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561 Uppsatser om Sound emission - Sida 24 av 38

Patienters smärtupplevelser i samband med scaling under tandhygienistbehandling - en enkätstudie

The aim of this study was to investigate patients? experiences of pain during dental hygienist treatment and scaling. The study is based on a questionnaire and includes 129 patients, from four dental clinics in Skåne, Sweden. The questionnaire consisted of ten questions with a Visual Analogue Scale as a main question. Questions about age, gender and dental anxiety were also included.

Ljuddesign på webben : Klang, en motor för adaptiv musik och ljudläggning

Målet med det här arbetet har varit att utveckla en ljudmotor skriven i JavaScript som underlättar ljuddesign för webbsidor. Ett sekundärt mål har varit att diskutera hur relevant Flash är för ljuddesign på webben och huruvida HTML5 har möjligheten att ersätta Flash i framtiden. En ljudmotor som har fått namnet Klang har utvecklats som ett JavaScriptbibliotek för integration med interaktiva webbsidor. Ljudmotorn använder Web Audio API, den nyligen föreslådda ljudstandarden för HTML5, som bas för uppspelning och processering av ljud. För att anpassa ljuddesignen för olika typer av webbsidor har Klang möjligheten att dynamiskt styra hur musik och ljud spelas upp beroende på vilken typ av webbsida den används för och hur en besökare använder denna webbsida.

Metanol som marint bränsle : Alkohol som en lösning, inte ett problem

Sedan industrialismens start har människan påverkat klimatbalansen genom förbränning av fossila bränslen. Rökgasemissionerna förorsakade av internationell sjöfart kan inte tillskrivas någon särskild nations ansvar på grund av dess globala och komplicerade verksamhet. FN:s sjöfartsorgan IMO har således åtagit sig ansvaret att minska sjöfartens miljöpåverkan. Införandet av nya miljömål har resulterat i strängare globala och nationella regler som tvingar sjöfartsnäringen till omfattande anpassningar under kort tid. Som lösning för att uppfylla kommande krav gällande rökgasemissioner har flertalet alternativa bränslen diskuterats.

Koloni Volym I. Hierakier bryts ner / Gemenskap byggs upp. Ett dokumentations - , arkiv - och utställningsarbete om en subkultur genom konsertarrangören Koloni .

Koloni is a concert promoter that put up shows in lots of different locationswith a wide variety of music styles and artistic expressions. In this work I havecollected material from Koloni?s nine years of existence to form a volume. Thevolume tells the story of Koloni?s work, but also shed some light and understandingon the alternative cultural scene of today.

Kartläggning och effektivisering av ljuddämparflöde

In 2013 a new emission standard for heavy trucks was introduced and hence a number of new parts was brought in to Scania CV AB. This created a need for modifications in the silencers flow. The flow is highly complex involving several suppliers, call off methods and different models of silencers. The aim for this project was to improve the existing silencers flow. The flow, from supplier to assembling, has therefore been mapped.

VVA-strategier för avgastemperaturhöjning på en HD-Dieselmotor

Regulations on the exhaust emissions of HD-diesel engines are becoming more and more stringent, and therefore, emission after-treatment systems are commonly used. These systems rely on catalytic conversion of NOx,CO , and HC emissions, and are thus dependant on temperature. At low load of the engine, exhaust temperatures are not sufficient for the after-treatment components. Therefore, means to increase the exhaust temperature while maintaining low emissions and fuel consumption are needed.The focus of this project has been to develop strategies for the lift profiles of exhaust and intake valves in the engine, with the goal to raise exhaust temperature in combination with low emissions and fuel consumption. The strategies have been tested in a single-cylinder research engine equipped with a hydraulic variable valve actuation system.

Projektering av vindkraftspark i Juddhult, Småland

The aim with this study was to collect fundamental information, and to plan, a windpower farm in Juddhult , Småland in southern Sweden. The goal is to collect the bestavailable projecting planning support. The pieces of this projecting planning supportthat will be presented is; Environmental Consequence Description (MKB), productioncalculations, comparisons between different plant types, economic calculations, evaluatethe economy and give some farm design suggestions. The imagined wind farm will belocated in forest environment and which may cause a number of new problems. Specialinterest that will be affected, where special consideration because of the forestenvironmental is requested is, hunting, wetlands, ancient monuments and windturbulence.

Nyhetsradio : Om skillnaderna i korta riksnyhetssändningar mellan två kommersiella radiostationer och public serviceradion.

The purpose of this BA-thesis was to learn the differences in news broadcasts between one public service radio channel and two commercial radio channels. To do this we used a quantitative analysis method to examine the content of the news broadcasts and then we conducted in-depth interviews with several people working with the different radio channels using a qualitative research interview method to learn their views on news and news broadcasting.We measured the differences between the channels in six areas: subject, headline, news presentation, gender, advertising and sources.Our two main theories were normative theory and media logic.The results found that there were several major differences between the public service radio channel and the two commercial radio channels. Apart from several important differences in the six measured categories we also found that the sound and tone in the public service radio channel was very different from the two commercial radio channels.We also found the public service radio channels news broadcasts to be more serious than the two commercials ones?..

Den moderna komposit?ren vs. ett ljudchip fr?n 1983

I detta arbete redog?r f?rfattaren f?r en del av spelmusikens historia, vilka influenser och tekniska begr?nsningar som lett till att bit-musik, med fokus p? 8-bitars musik och med inslag av 16-bitars musik, l?ter som den g?r, samt g?r en analys av 8-bitars musik p? bakgrund av musikteori, musikpsykologi och kompositionsmetod. F?rfattaren diskuterar ?ven begr?nsningar utifr?n ett historiskt perspektiv, och redog?r f?r uppkomsten av kompositionsmetoder som anv?nts genom ?rhundradena, fr?n Bach till 1980-talets 8-bitars komposit?rer. F?rfattaren kommer fram till att det g?r att applicera samma kompositionsmetoder i 1980-talets spelmusikkontext som under exempelvis barocken, och att analysera klassisk musikteori ?r anv?ndbart f?r att f?rst? och skriva 8-bitars musik.

Underlag till energieffektiviserande åtgärder i nätstationer

Umeå Energi are working towards a goal, that in the year of 2018, they will be completely climate neutral. As a part of this, one target is to reduce their grid losses by 4 % of the 2012 level, which corresponds to an overall reduction of the grid losses of just over 1.7 GWh. In many residential areas, the distribution grid is designed and rated for electric heating as the heating in the houses. As many of the houses later has been converted to other types of heating, their electricity use has decreased and the total power output from many of the secondary substations has decreased significantly. Because of this, many of these stations today are well oversized, which in turn means that the energy losses in these stations are unnecessarily high.In this degree project, 25 secondary substations have been studied, all located in residential areas in and around central Umeå.

Små barn behöver stor yta. Om inredningens roll i skapandet av en användarvänlig barnavdelning.

The aim of this study is to examine how important a factor the environment and the interior is to the creation of a user-friendly children?s library. In this study, environment is taken to mean the furnishing and the equipment in the children?s area at the library. The environment plays an important role in society today and because of that this is a current topic.

Tryckpulsgenerering för funktionskalibrering av mätsystem

The running of gas turbines with low emissions causes high pressure pulsations to arise in the combustion chamber. These pulsations are high amplitude sound vibrations. At some frequencies these are harmful to the gas turbine. Hence these pulsations are monitored to avoid operating conditions where pulsations are specifically harmful. It is necessary to expose the system of known pulsations to verify the functionality of the monitoring process.

Projektet Från tanke till handling - Läsfrämjande i utveckling

The purpose of this study is to explore the possibilities for children?s librarians to extend their competence in the area of reading promotion. The study is carried out within an ongoing reading promotion project directed towards small children from 0-7 years. The study aims to answer the following questions: How do children?s librarians develop new skills in a reading promotion project? How do children?s librarians view a broadening of the concept of reading and how does their approach affect which skills that are acknowledged?The study is mainly based on qualitative interviews with five children´s librarians who all participate in the project.

Miljöanpsassad metod för hjultvätt

In order to avoid harmful substances ending up at the municipal sewage treatment plants, it is important to purify the wastewater at the source. One such source is the wheel washers available in many tire garages which are used to wash the wheels on our vehicles when we change between summer and winter tires. It is important to wash the wheels before storage, to extend the tires lifetime. The purpose of this study is to find a green innovative solution for reduction of emissions of heavy metals at the source, so that the sludge from the sewage treatment plants can be used as fertilizer. The target is to find a wheel wash method which leads to compliance with the guidelines for car washers, and that also provides a better washing result than with the existing method.

Representationer av döden i ungdomsfilm utifrån analyser av Hungerspelen och Jag saknar dig

Regarding death in youth movies,analysis of Hunger Games and I Miss You  Today, death is not as present in our everyday life as it was before when everyone knew how death both looked and smelled. This means that media today has a different role and that media can help their viewers to mourn and become aware of death in a completely different way. In this study, death is analyzed as an representation; how it affects and is experienced in two selected youth films, The Hunger Games, (Gary Ross, 2012) and Jag saknar dig/I Miss You (Anders Grönros, 2011).Previous studies mostly analysis death as a figure, and in accordance with these studies have concentrated on different physical descriptions of death; often about diseases or how death is portrayed in the news. In my opinion, these studies lack the perspective of how death is presented, but also how young people respond to these deceptions of death. This essay highlight different perspectives and show more of how death occurs, how the cinematic look is described and how young people react to what is happening on the screen.

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