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561 Uppsatser om Sound emission - Sida 20 av 38
Klimatkalkylering
Detta är en studie om klimatpåverkan i samband med anläggandet av järnvägsbroar i syfte att ta fram nyckeltal (moment, material, mängder) för att effektivt kunna reducera utsläppen av växthusgaser. Till grund för studien har vi arbetat med Trafikverkets verktyg klimatkalkyl 2.0. Det har granskats utifrån användarvänlighet och riktighet i indata och emissionsomräkningsfaktorer. Det för att se till skillnaden mellan modellen och ett unikt anläggningsprojekt, var skiljer sig Trafikverkets typvärden mot de projektspecifika förutsättningarna samt vilka blir dess konsekvenser?Studien har kommit fram till att utan viss försiktighet vid arbete i klimatkalkyl 2.0 finns risk för inkorrekta resultat.
Selektiv katalytisk avgasrening till sjöss : Svårigheter, lösningar samt erfarenheter från drift och underhåll av marina SCR-system
Denna studie har sammanställt kunskap och erfarenhet från drift av SCR-anläggningar påfartyg med syftet att fastställa de huvudsakliga orsakerna bakom problem som uppstår ikatalysatoranläggningar inom Nord- och Östersjöfarten. Undersökningen utfördes meden kvalitativ intervjumetod. För att få en bra täckning riktade sig undersökningen motbåde rederier och fartyg med erfarenhet av SCR, samt tillverkare av systemen.Intervjuerna utfördes per telefon och analyserades sedan mot frågeställningarna. Iresultatet framkom att ett stort antal anläggningar genomgått modifieringar eftersomproblem uppstått. Ett antal vanligt förekommande problem identifierades.
Optimering av ultraljudssändare- och mottagare avseende räckvidd, strålningsvinkel och energiförbrukning
Embedded Systems Lab at Umeå University is currently part of a research project with the purpose to examine the behavior of dairy cows inside a barn. Each cow needs to be tracked with a precision of 50 cm, and since GPS-technique has poor functionality at indoor environments, an indoor positioning system needs to be developed.Embedded Systems Lab has already developed an indoor positioning system using IR-light and radio, but since this system demands extensive infrastructure and is rather expensive, an alternate positioning system using ultrasonic pulses and radio is being examined.In this report the range, beam angle and current consumption of ultrasonic transmitters- and receivers are investigated. Three different driver stages for the transmitter is tested, and two amplifier solutions for the receiver. The report also describes how the length of the transmitted ultrasonic pulse affects the received signal, accessibility of a ?shadowed? signal, and the effect of different sound frequency..
Lantmännens emission av förlagsandelar och handeln med emissionsinsatser : en analys av medlemmarnas motiv till beslut
Under 2009 lanserade Lantmännen handel med emissionsinsatser och emitterade förlagsandelar. Handeln med emissionsinsatser syftar till att behålla emissionsinsatserna i Lantmännen, då många av medlemmarna är äldre och kommer att begära utträde ur föreningen kommande år. Handel med emissionsinsatser ger möjlighet för medlemmar att köpa och sälja emissionsinsatserna på en andrahandsmarknad. En välfungerande marknad innebär en minskad risk för att emissionsinsatserna försvagar Lantmännens soliditet. Emissionen av förlagsandelar gjordes för att öka det individuella kapitalet och ge medlemmarna en möjlighet till ökad värdetillväxt i Lantmännen.
Ethernet-baserat interkommunikationssystem för militära fordonssystem
The result of this master thesis report describes the advantages and the drawbacks that will arise when implementing an Ethernet based intercommunication system in military vehicles. The report presents a possible solution and describes how different sound applications will be implemented into the suggested solution. The report show that IP LAN in vehicles leads to more advantages than drawbacks. The main advantages are that all kind of media can share the same LAN and that there is a lot of knowledge of this technique in the civil area. The main drawback is about delay.
Micro plastics in the oceans and their effect on the marine fauna
Small pieces of plastic, termed ?micro plastic? in the oceans derive mainly from degradation of big plastics such as beach littering, but also from sources of direct emission from e.g. beauty scrubbers and synthetic sand-blasting. These micro plastics are ingested by marine
animals ? mistaking them for plankton ? or via prey.
Interaktivreklamfilm-en CD-ROM-produktion för Alding Webshop Maker
Denna rapport visar hur en reklamfilm för en specifik produkt har utvecklats, i form av en CD-ROM-produktion. Företaget Alding AB har efterfrågat reklamfilmen för sin produkt Alding Webshop Maker 1.3. Flera olika programvaror har använts vid genomförandet, varav ljudredigeringsprogrammet Sonic Foundry Sound Forge 5.0 och bildredigeringsprogrammet Adobe Photoshop 5.5 hör till de mest frekvent använda. Med hjälp av programmet Macromedia Director 7.0 har sammanställningen av reklamfilmen utförts. Rapporten behandlar de olika problem som uppstått under arbetets gång samt hur de har kunnat undanröjas.
Stimulerad & observerad : En studie kring sensorisk stimuli och dess påverkan
The purpose of this thesis is to see how small differences in a store can affect the customer behavior. The changes consist of auditory and visual sensory cues. Since many companies today makes a lot of changes in their styling element, but without knowing how it really affects the customer behavior we thought it would be interesting to see by doing an experiment at IKEA. The study is therefore based on a quantitative research method, where theories have been described and from which hypotheses have been derived to test the theories. The experience took place at IKEA during two weeks where 5732 observations were made.The result from the experiment is that the sensory cue sight makes individuals spend more time in the environment but not creating attention.
Svenska är ett sjungande språk : utveckling av svenska som andraspråk genom sång och musik
There are different ways of developing a second language. The purpose of this qualitative study is to investigate whether and possibly how music, focused on singing, can improve the development of Swedish as a second language. Through interviews with three vocal teachers, from three different schools in Sweden, and observations of one of the vocal teachers, information about how they work and think about the subject has been collected. The vocal teachers teach groups of second language learners by singing songs made especially for second language learning. The vocal teachers consider singing beneficial in the development of the pronunciation and improvement of the prosody, which affects the students? capacity to sound like a native Swedish speaker.
Synt och sånt : Datorbaserat musikskapande på folkbibliotek, en studie i förutsättningar och praktik
Recent papers and bills from the Swedish Government deal with the possibilities of giving all Swedish citizens the possibility of their own creative actlvities in the cultural sector. This work is about where such actlvities shall be placed in order to make them obtainable for all. As an example of creative work this work takes computer-based music-making. At the public library in Odense, Denmark there is a weil functioning sound workshop where the public gets the opportunity of making music with some assistance from the staff. This work shows that also in Sweden the public libraries are the most suitable institutions for placing studies for computer-based music-making for the public depending on the public libraries' traditions in adult education.
VÄGTRAFIKBULLRETS INVERKAN PÅ UTFORMNINGEN AV BOSTADSBYGGNADER I STADSMILJÖ
The public interest in central living in today?s cities has led to an increasing effect of traffic noise pollution, and today 20% of the inhabitants in Sweden suffer from noise a level that exceeds the limits. At the same time the traffic keeps increasing, and recent researches shows that traffic noise pollution and several of today?s most common health issues are connected, for example, reduction of performance, sleeping issues and cardiovascular diseases. For this cause rules, guidelines and environmental goals has been developed, as well as software?s which calculates the levels of pollution, all this to investigate and improve the environment.
Energikonsumtion hos en diskmaskin
The dishwasher is a wide spread product that occurs in many households. It saves the user time,water and energy. When using a dishwasher instead of doing dishes by hand a lot of energy issaved.The importance of lowering the energy consumption does not only come from the consumerwinnings but also from an environmental point of view. Scientists are certain that the globalwarming comes from the emission of green house gasses that is created by human consumptionof oil, gas and coal.Dishwashers today are a lot more energy efficient than older dishwashers, but there are stillmargins to lower the energy consumption. The aim with this project is to investigate thedishwasher and it?s washing cycle, noting different phases and components that contribute towaste of energy.
Varde ljud: en undersökning av studerandes musikskapande
Syftet med denna fallstudie var att undersöka studerandes musikskapande. Deras beskrivningar relaterades till den kompositoriska processen. Ett delsyfte var att studera skillnader i detta avseende mellan studerande med olika musikbakgrund. Deltagarna gick en fristående kurs i musikskapande där de komponerade och framförde musik. Med utgångspunkt i löst strukturerade intervjuer, processprotokoll samt inspelade kompositioner sökte jag förståelse för den kompositoriska processen och förutsättningarna för den.
Fonologiskt korttidsminne hos tvåspråkiga barn med och utan språkstörning
Repetition of Non- word (make- up word that has not some semantic content) has been proposed as a reliable index of phonological memory in children with language impairment (LI). The aim of this study was to find out the possible similarities and differences concerning phonotactic non-words and working memory in 18 bilingual Swedish-Arabic children with and without LI ages 4-6 years. The investigation was undertaken by conducting three tests including NEPSY, WPPSI-III and a Word repetition test. The results showed that there are not significant differences between the two groups regarding various parts of NEPSY. On the other hand the results showed two significant differences in WPPSI-III regarding Picture categories and Word repetition tests for Swedish Non-word.
Pitch Correction - ett måste? En intervjuundersökning om åsikter kring användning av pitch correction i dagens musikskapande.
Pitch Correction - is it a must? An interview inquiry about opinions concerning pitch correction in music making today. This work intends to find out what music producers, singers and those with a great interest in music really think about the use of pitch correction programs, both in the studio and live. The thoughts concerning this came when I began to work with these programs in a studio, mostly for vocal use. I realized that the thoughts and opinions about the use of pitch correction varies a lot.