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313 Uppsatser om Cabin noise - Sida 9 av 21
Vektorkvantisering för kodning och brusreducering
This thesis explores the possibilities of avoiding the issues generally associated with compression of noisy imagery, through the usage of vector quantization. By utilizing the learning aspects of vector quantization, image processing operations such as noise reduction could be implemented in a straightforward way. Several techniques are presented and evaluated. A direct comparison shows that for noisy imagery, vector quantization, in spite of it's simplicity, has clear advantages over MPEG-4 encoding..
Ljudinstallationer i Sveriges utemiljö
When visiting Scaniaparken in Malmö you have the possibility of listening to music streaming out of grass-covered hills. In Helsingborg children can compose their own music and play for their friends on the playground. On a square in Nacka Strand you can hear birds singing in the quiet intervals of traf?c. What the places have in common are that they all contain sound installations.
Jag gör det själv / Allt blir bra : Ett examensarbete om att hjälpa sig själv
The problem being examined is the disturbing noise that is created in an open plan office on a company working with a creative process, such as a newspaper or a communications agency. The purpose of this study was to examine the needs for today for a sound absorber in open offices and create and design a design proposal. The aim is also to develop a marketing material the product proposal. The problem has been broken down into the following questions:- How does the user look at the need of a sound absorber in an open offices solution today?- Does an interior designer apply sound absorbers when they furnish the intended environment? - How can a design that meets the needs that exists be achieved and to speak the user?The study is based on three choice of methods a literature review on selected topics that relate to the topic, an interview with an interior designer to explore how an interior designer applies absorbers in open plan office and finally an extensive survey that treats the user's needs and appropriate appearance for the product proposal.The design process has undertaken the following methods, design brief, requirements specification, functional analysis and sketches to produce the final product proposal.
Ickevåldsremix : En dröm om hur ett samarbete mellan Moder Teresa och The Knife skulle upplevas.
This is an art-remix project that focuses on a dream about art and music remixed and made within a context of nonviolence. The goal is to create temporary (and in the long term hopefully stabile) spaces of peace. It will be done within places where change needs to come, where it needs to be heard/seen/experienced. Weapon exports from Sweden are increasing even though there is research showing that nonviolent resistance in conflict is more effective. In this essay I discuss nonviolence and how I can implement that in my work to find a meaningful work for both me and my neighbours.
LIN baserad kommunikationsmodul för GPS
The work that is the basis of this Master Thesis was performed on Scania´s group of cabdevelopment, and concerns the GPS-system in Scania´s trucks. Today, the GPS-systemconsists of an active antenna mounted on the roof of the truck. The antenna is connectedto the receiver with a coaxial cable.The purpose with this Master Thesis was to develop and evaluate a new GPS-system,where the information is distributed using a LIN-network. Today, each unit requiringGPS-information is equipped with its own antenna and receiver. This solution has beenthe most cost effective to this point.
Hållbar byggnad med hänsyn tilltrafikbuller Utformning av ett bostadshus i ett trafikerat planområde i Örebro
De flesta av Sveriges kommuner har ett mål där de strävar efter att bygga ett hållbart samhälle, vilket innebär att man utnyttjar den befintliga infrastrukturen. Målet med detta är att dra nytta av de obebyggda områdena i stadsbilden genom att bygga nytt. Eftersom de tysta sidorna av byggnaderna ska ligga på en ljudnivå under 45 dB(A) har det här examensarbetet behandlat de möjliga lösningar som kan tillämpas vid bullerdämpning. En platsinventering har utförts där de olika förutsättningarna har studerats, och där resultaten av studierna har granskats med syfte till att planera en vision.Nyckelord: Bullerdämpning, bostadsutformning, platsinventering.
Mat(o)vanor bland flyganställda : - måltidsmönster och upplevelse av möjlighet till återhämtning med oregelbunden arbetstidsförläggning
AbstractFood and recuperation has a superior importance in human life and it is hard to deny thedistinction of the food in everyday life. Nutritious food gives energy to benefit activitiesof the day and influences on behavior and performance as well as well being. Themeaning of the terms meal and mealtime are key concepts in this study and the severalbeneficial aspects beyond the physiological function. Inadequate time for the mealmight provide degenerative consequences for individual health and generate outgoingsfor society. The aim of this study was that from an individual perspective describe workenvironment conditions for meals and recovery potential among employees withirregular working hours using mixed methods with both questionnaire and interviews.Four (4) airline employees participated.
Simulering av simulinkmodeller medExtended Kalman FilterTidsoptimering av integrering
Simulation of different systems can be done using a graphical model description of the system based on block diagrams. The simulation software Matlab/Simulink offers a lot of possibilities to describe a huge number of systems, which can be linear as well as nonlinear. The simulation using Matlab/Simulink is done by integration based on different kinds of numerical methods.When nonlinear Simulink-models are simulated, it is often interesting to apply a Kalman filter to handle the noise that may occur within the process as well as corrupting the measurement. However, application of such a filter leads to an extensive time-consumption despite using fast computers. The reason is that the existing Matlab functions are not constructed for time optimal evaluation.
Inredningsförslag till Bolandgymnasiets matsal
My bachelor?s dissertation concerns the creation of a proposal for interior decoration of the Boland High School?s canteen. I have been in contact with personnel, students and the school principal through the duration of the project. In the end, substantive changes of lighting, interior decoration and movement were proposed for the canteen. In the proposal I have focused on accentuating the school?s profile, on creating smaller spatial configurations within the larger configuration of the room, lowering the noise level, creating a good movement flow, increase the number of seats and creating a pleasant environment in which to eat..
OMBYGGNAD AV TRAFIKPLATS : Ekhagsmotet i Jönköping
We have the tradition in Sweden to build villas and houses with a wooden framework. It has become natural for us because we have so much forest in our country. Building with wood has advantages, it is easy to process, but also disadvantages, as it is sensitive to moisture.Finland has long made use of the thermal blocks to build villas. It is a type of bricks that are a bit like a sandwich element, with a core of EPS and concrete on both sides of the core material. The concrete is hollow, so that after the walls has been bricked up you pour concrete into the hollow bricks.The issue of this report is to find out if concrete can be an alternative to wood as framework material in villas.
Taluppfattning i ofördelaktiga förhållanden : Hur pa?verkar kognitiv fo?rma?ga perceptionen av enstaviga ord i brus besta?ende av talande ro?ster?
Inom disciplinen kognitiv ho?rselvetenskap tilla?mpas en integrerad ansats da?r taluppfattning beskrivs ur ba?de ett auditivt bottom-up-perspektiv och ett kognitivt top-down-perspektiv. Studien underso?kte hur taluppfattning varierar med, respektive utan top-down-sto?d och vad de kognitiva fo?rma?gorna uppma?rksamhet, minne och inhiberingsfo?rma?ga hade fo?r inverkan. Taluppfattningsfo?rma?ga utva?rderades med hja?lp av ett Speech-In-Noise-test (SIN-test) som bestod av tre deltest da?r enstaviga ord presenterades i en ofo?rdelaktig miljo? besta?ende av ro?ster som talande i mun pa? varandra.
Inventering av internationella bullerskyddsåtgärder för höghastighetståg
Utvecklingen inom järnvägssektorn går mot snabbare och mer effektiva transporter, dock begränsas utvecklingen av att det krävs nya och mer utvecklade spår och tåg för att uppnå det. Med dagens infrastruktur och tågmodeller är hastigheter på 200 km/h det maximala. Behovet att öka kapaciteten och införa höghastighetstrafik i Sverige utreds i nuläget. Med höghastighetstrafik avses hastigheter på minst 250 km/h. Banverket har som förvaltare av järnvägen ett sektorsansvar för miljön och således även buller.
Punktmolnshantering i anläggningsprojekt : Utvärdering av programvaror för framtagande av markmodell
An increased number of participants in the construction industry is asking for accompanying terrain models to the project in order to get a better understanding of the field. When the desire to create buildings that fit together nicely with the surrounding area is increasing, it becomes more and more important to have a broad base of knowledge about the ground on which the building is to be erected. Terrain models are also very useful in the planning of logistics, documentation for landscape architecture projects, and billings for mass calculations.Surveys for creating terrain models can be performed with laser scanning. The advantage of laser scanning is the time-effective surveying, the detailed information as well as the ability of application in complex environments resulting in a cost-efficient project. With this in mind our thesis was defined in collaboration with the company Bjerking AB in Uppsala in order to investigate if there were any softwares suitable for terrain modeling.
Användbarhetsutvärdering av det lätta sandwichmaterialet Hybrix för bilkarossapplikationer
This M.Sc. thesis is a material application evaluation commissioned by the advanced body engineering department at SAAB Automobile AB. The purpose of the thesis is to evaluate implementation of the innovative sandwich design material Hybrix into an automobile body. Today the most commonly material used in the body is galvanized steel sheets and by shifting material to Hybrix several problematic issues have to be dealt with. Hybrix is an innovative sandwich sheet that inherits thin stainless steel face sheets and a stainless steel fibrous core.
Musikvärldens karta och kompass : En designstudie om hur musik kan åtkomliggöras digitalt med minskade krav på musikkulturell förkunskap
Syftet med detta examensarbete var att kommunikativt sänka kraven på musikkulturell förkunskap vid interaktion med det digitala musikarkivet Every Noise At Once. Studien tog stöd i teorier inom kognitiv semantik och teknisk kommunikation.De metoder som användes var omvärldsanalys, expertintervjuer och receptionsanalys. Längs arbetets gång formades en hypotes som sedan prövades genom empirisk datainsamling och analys av denna.Resultatet antydde att vi förstår musik, och gör oss språkligt förstådda om musik, via taktila och visuella metaforer. Detta resultat guidade sedan gestaltningen av en prototyp där utvalda akustiska attribut översattes till liknelser med taktil och visuell koppling. .