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301 Uppsatser om Noise burst - Sida 11 av 21

Psykosocial arbetsmiljö : kommunikation och trivsel i industriella arbetslag

Relationships and trust between humans create the psychosocial working environment. This is a basic human activity and is communicated in a continually ongoing process. Conciseness about the value of trust and social capital motivates the need for work, with threats to communication, being conflicts and noise. This can create greater trust in the workplace as a whole, as well in the working team. Scientists are increasingly interested in these social relations in the working environment; there are profits, both for production and in terms of individuals2019 well being, in shifting the focus away from a purely production-oriented, economic perspective.

Public Hear Aid

This project started when LIC Audio AB wanted help with development of a hearing aid for public rooms. The problem is that a lot of people suffer from some sort of hearing impairment. In places with a lot of people and background noise the problem becomes bigger and the sound seems to flow together. During the project we found the solution for the problem in the shape of a headphone. The headphone receives a signal from a preinstalled hearing loop.

Bostäder vid stränder och järnvägar - risker, attraktivitet och konflikter. Fallstudie: Öbacka strand i Umeå kommun.

This study aims to analyze the risks with building new households between railroads and shore, the focus of the study lays on Öbacka strand in Umeå municipality. The study also investigate if a land use conflict has taken place and how it was handled.The paper is based on different documents that was central for the work of planning the households and some interviews with operators that was highly involved with the planning of the area.The results shows that there is several risks with establishing new household between railroads and shores. Mainly because of the exposure of noise from the railways, though the risk for impact on the living environment for animals were low in this case there is a generally risk that it could get negative effects. It also a very important that the availability to the shore is secured. Planning in this type of area involves a great number of operators can easily cause a conflict due to the different perspectives on how the land should be used in the future, and also because of protecting different interests.

Processuell generering av oändliga spelvärldar : Praktiska problem och optimering

Enligt oss så är det största problemet med att processuellt generera en pseudo-oändlig spelvärld i realtid är att få genereringen att ske så sömlöst som möjligt samtidigt som världen upplevs som konsekvent. För att finna lösningar på detta problem så analyserar vi andra studier och spel som utnyttjar processuell generering. Vi använder sedan de metoder och tekniker vi funnit för skapandet av en egen applikation för att få en djupare förståelse för hur dessa fungerar i praktiken och hur mycket varje metod påverkar prestandan. I vår slutsats beskriver vi de problem vi fann, deras orsak och ger förslag på lösningar. På grund av studiens tekniska karaktär så riktar den sig främst till programmerare.

Avblås för torkning av kabel

This report is written on the assignment by Nexans IKO Sweden AB in Grimsås which is a cable manufacturing company. Nexans IKO Sweden AB was in need of help to examine possibilities for saving energy by saving compressed air, in first place by using the compressed air more efficient. The task was to determine the present situation, making the airwipe stations more efficient by reducing the consumption of the compressed air and in turn save money. Even the aspects of the working environment were discussed as the noise levels from the pneumatic systems and engines are usually high. A schedule over the airflow in the factory and the inventory over current airwipessituation was made.

Passivhus med prefabelement : En jämförelse mellan en platstillverkad konstruktion och prefabelement från Masonite Lättelement AB

This thesis conducted at the University of Uppsala investigateshow well a prefabricated building component from the manufacturerMasonite Lättelement AB can be incorporated into ahouse projected to accomplish the demanding criteria of a passivehouse. The thesis is organized as a comparison betweenthe prefabricated elements and an on-site built component fromthe passive house area of Oxtorget in Värnamo, Sweden. Theaspects investigated were air leakage, energy, moisture, economyand noise conditions.Results of the comparative analyzes shows that the prefabricatedproducts were capable of accomplishing the requirementsof passive houses and therefore this thesis should beviewed as a basis to confirm that the technology of prefabricatedbuilding components today in Sweden are mature enoughto be a significant part of the passive houses that are to be builtin the near future. The development of prefabricated technologyis of crucial significance if we are to accomplish the goalsof reduced energy consumption by the year 2020..

Effektiv betong för småhusproduktion : Betong med högt luftinnehåll för platta på mark

This Masters thesis work describes a comparison between two different methods for estimation of the down channel (base station to mobile subscriber) in Wide-band Code Division Multiple Access (WCDMA). The first estimation method, Optimal Feed-forward Channel Estimation (OFCE), is a conventional method that bases the estimates on data that is known to both sender and receiver, so called pilots. The second method, Decision Directed Channel Estimation (DDCE), is an elaboration of OFCE. It also uses user data for estimation. Simulations show that DDCE, in comparison to OFCE, does not attain an improvement in signal-to-noise-ratio (SNR) for high bit error rates (BER).

Att utforma den perfekta skandalen : En studie av hur Expressen rapporterade  om SD-skandalen i november 2012

Title: How to Construct the Perfect Scandal ? a study of the news reported by Expressen concerning the SD-scandalAuthor: Linnea IvarssonThis C-paper presents the incident concerning the political party Sverigedemokraterna in Expressen in November 2012. The newspaper was the main source of the news reporting with the mobile phone camera film from the occurance and led the way of the news reporting in Sweden about three party members.The paper investigates how the story telling of the so called SD-scandal was constructed, using Critical Discourse Analysis as the analysis method combined with selected parts from the analysis method of critical linguistics. The theories that have been used to establish the results of the analysis are Critical Discourse as a theory based on Norman Fairclough and Teun A. van Dijks theoretical keystones combined with Sigurd Allerns and Ester Pollacks theories and schematic point of view on the constructions of political scandals in media.With the theories and analysis methods above mentioned the results turned out to confirm the theory about how political scandals in media are constructed and designed with certain strategies and agenda.

Går det att säkerställa ljudmiljön i en träningslokal? - en studie om ljudnivåövervakare på träningslokaler i Göteborg

In Sweden, exercise takes a great part in people?s lives. Health and a good conditioned body go hand in hand. Many Swedes exercise in groups, with aerobics or a similar form of workout at a training facility. A regular workout lasts for about an hour and is accompanied by music.

Betongbjälklag med limmad matta : olika behandlingars effekt på alkalitet, fukthalt och emissionsbildning

This Masters thesis work describes a comparison between two different methods for estimation of the down channel (base station to mobile subscriber) in Wide-band Code Division Multiple Access (WCDMA). The first estimation method, Optimal Feed-forward Channel Estimation (OFCE), is a conventional method that bases the estimates on data that is known to both sender and receiver, so called pilots. The second method, Decision Directed Channel Estimation (DDCE), is an elaboration of OFCE. It also uses user data for estimation. Simulations show that DDCE, in comparison to OFCE, does not attain an improvement in signal-to-noise-ratio (SNR) for high bit error rates (BER).

De akustiska skillnaderna mellan två städer i Sverige

Studien bygger på två 24 timmars ljudinspelningar utförda från två olika städer iSverige. Syftet med undersökningen var att se om det gick att urskilja akustiskaskillnader mellan två olika städer i Sverige. Studien har tagit mycket inspiration av R.Murray Schafer arbeten inom soundscaping, samt Pijanowskij, et al., (2011) ramverkför att kunna kategorisera ljuden utifrån dess ursprung och funktion. Olikaundersökningar har genomförts med hjälp av kvalitativa intervjuer, samtfrekvensanalyser av det inspelade materialet. Båda metoderna användes tillsammansvid utvärderandet av ljudmaterialet för att se hur vida informanternas svaröverrensstämde med den frekvensanalys som genomförts.

Dämpning av fläktljud i diskmaskin

Detta examensarbete omfattar akustiska undersökningar utav en desinficerande diskmaskin av typ Getinge 8666/8668 och har utförts på Getinge Desinfection AB i Växjö. Vi har undersökt hur man med enkla medel kan sänka ljudtrycksnivån i maskinens närhet. Mätningar har utförts på diskmaskinens torkprogram, där torkfläktarna är de mest dominerande ljudkällorna och ljudet främst är luftburet. En systematisk analysmetod bestående av införandet av successiva dämpningsåtgärder visade att de dominerande ljudvägarna går via taket, golvet samt till viss del spalter i maskinens väggar. Genom att isolera både tak, golv och spalter kunde ljudtrycksnivån sänkas med totalt hela 5,9 dB.

Manukahonung vid sårbehandling på hund och katt

Honung har en historia inom sårvård som går långt tillbaka i tiden. Idag används honung både inom veterinär- och humanmedicinsk vård. Den honung som används är framförallt Manukahonung från växten Leptospermum scoparium i Nya Zeeland. Honung anses ha ett flertal positiva effekter på sårläkning och här fokuseras på tre av dem: antibakteriell effekt, påskyndad sårläkning samt antiinflammatorisk effekt. Syftet med denna litteraturöversikt är att se vad det finns för vetenskaplig grund till Manukahonungs påstådda effekter och för att få en uppfattning om användbarheten inom veterinärmedicinsk sårvård för hund och katt. Den allmänna uppfattningen är att den antibakteriella effekten hos Manukahonung är bekräftad då flertalet studier har visat detta, även på multiresistenta bakterier.

Estimering av GPS pålitlighet och GPS/INS fusion

The global Positioning System (GPS) provides location and time information as long as there are unobstructed lines of sight to four or more GPS satellites. However, when this is not the case the signal may be inaccurate or sometimes even completely blocked. In these situations the Inertial Navigation System (INS) is an appropriate choice for positioning.  An INS has already been proposed in a previous thesis by Erik Andersson and the objective of this thesis is to fuse the GPS with the INS in a proper way. A part of this project is to decide the reliability of the GPS.Three methods for GPS reliability detection have been proposed. One method based on the statistical properties of each of the separate systems, and two methods based on the statistical properties of the residuals between the GPS and INS.

Den ljudlösa bilen : En underso?kning om buller, ba?ng och brummande bilar

Examensarbetet kommer underso?ka aktiv ljuddesign fo?r tysta personbilar. Utifra?n tidigare forskning om hur elbilen utsa?tter ma?nniskor i ta?tomra?den fo?r fara pa? grund av avsaknaden av auditiv information, ska vi utveckla fo?rslag pa? dynamiska billjud som fo?rha?ller sig till trafiksa?kerhet, design och minskade ljudfo?roreningar. Den totala ljudniva?n i sta?der a?r la?ngt o?ver rekommendationen och fo?ljden blir ett ha?lsoproblem i sto?rre sta?der.

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