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677 Uppsatser om Room acoustics - Sida 12 av 46

Simulering av exteriört bussljud : Undersökande av en Ray Tracing metod för ljudsimuleringar

En metod för att simulera exteriört bussljud med hjälp utav Ray Tracing har testats och utvärderats. En modell av en buss har byggts upp i ett CAD program. Dominerande ljudkällor i bussen samt materialkoefficienter har tagits fram för de material som ingår i bussen. Bussen har sedan förts in i simuleringsprogrammet Odeon, där ett antal simuleringar har utförts. Olika pass-by simulering har utförts och jämförts med mätningar.

Undersökning av bindningsmekanismer vid pressning av metallaminat : Investigation of bondning mechanisms at the pressing of metal laminates

Increased understanding of the mechanisms that operate in conjunction with the welding of metal surfaces may help to improve existing manufacturing processes, and to enable new products and combinations of materials. The purpose of the project has therefore been to acquire a deeper understanding of what is happening in the bond for steel and for the factors that form the basis for a bond to develop between metals in the production of laminates by pressing. The merge has been done by pressing and the surfaces after the experiments have been studied in detail in the scanning electron microscope (SEM), energy dispersive X-ray spectroscopy (EDX) and with interferenceprofilometry in Wyko, to provide a greater understanding of the mechanisms that influence the bonding in the interface between metals. The project was limited to contain the materials Docol 1000, HyTens 1200, Aluminum AA3003 and a commercial steel. The parameters varied in the experiments to study their influence closer are temperature, pressure, heat treatment and pretreatment. This has been implemented by pressing with varying temperature and pressure.

Operationssjuksköterskans hantering av vassa instrument i operationssalen

BakgrundOperationspersonal är den yrkesgrupp inom vården som är mest utsatt för risk för blodsmitta genom frekvent hantering av stickande och skärande instrument samt exponering av blod. Bland operations­sjuksköterskor finns en stark önskan att arbeta så säkert som möjligt för att minska risken för smittöverföring. Det finns föreskrifter, metoder och hjälpmedel för att förhindra stick- och skärskador men få skriftliga riktlinjer och rutiner.SyfteSyftet med den här studien är att undersöka operationssjuksköterskans hantering av stickande och skärande instrument i operationssalen.MetodStudiens design är en empirisk tvärsnittsstudie med en kvantitativ ansats. En strukturerad observationsstudie utfördes på Södersjukhuset i Stockholm. 18 operationssjuksköterskor observerades under 50 operationer.ResultatStudiens resultat visar på brister inom samtliga områden som observerats.

Gruva eller renar? : En deliberativ analys av deltagande i beslutsprocessen vid en gruvetablering i Storumans kommun

This thesis examines the conditions for participation in the decision making process of a possible mine establishment in Storuman municipality in the north of Sweden. This is done through a case study where the main actors are the mining company Nickel Mountain AB, the municipality Storuman and the Sami village Vapsten. As a theoretical framework Cecilia Eriksson?s division of democratic theories is used as a starting point. Methods as described in deliberative democratic theory, such as discussion by effected community members, are seen as a method within the participatory democratic tradition, not a theory of its own.

Självständigt Flöde : En studie om självständig orienterbarhet på Björnkullas äldre- och demensboende

The purpose of this study was to examine how the design of the wards, at Björnkulla nursing home, affects the residents? wayfinding ability and autonomy. Thus, the aim has been to make a design proposal that, trough color and design can increase the residents? chance to independent mobility. Since the study aimed to examine how the environment affect and can support people with dementia, qualitative methods were used.

Trädetaljer i exteriör arkitektur : En rapport om hur arkitekturen kan tillåtas framhäva trä som byggnadsmaterial i utvalda exteriöra detaljer för ett äldreboende med massiv trästomme

Arkitektfirman Kolman X Boye Architects har fått uppdraget att upprätta bygglovshandlingar för ett äldreboende. Det är ännu ej bestämt i detalj hur byggnaden skall uppföras men beställaren önskar att byggnaden uppförs i träbyggnadsteknik. Äldreboendet projekteras för 54 stycken lägenheter fördelat på sex stycken våningsplan och en total bruttoarea på strax under 6000m2. Ingen lika hög träbyggnad med denna verksamhetsklass avseende brand har tidigare uppförts i Sverige.Vår uppgift och utmaning i detta arbete har varit att reda ut problematiken kring projekteringen av exteriöra detaljer för höga hus i trä. Utifrån kända problem avseende brand, akustik och fukt har sedan ett antal detaljer som påverkar det estetiska uttrycket projekterats.

"Vi ska gå bra och må bra"

Working with health-management has become something most organizations would describe as essential for being legitimate today. The aim of this thesis is to investigate how this subject is handled in an existing company and how this work is percieved by the employees in the organization. Due to the fact that limited research has been conducted on this issue, we see this thesis as a potential for increasing the understanding of how health management is articulated in practice. Our results show that health management in our studied organization is far reaching in comparison with most organizations, but has room for improvement according to the Integral Theory. The consequence of differences in perceptions between management and employees could result in that health management does not become an integral part of the company and its daily operations to the potential extent..

Röstfaktorer som avslöjar ironi : Akustiska likheter och skillnader mellan sinnesstämningar

Ordet ironi definieras som ett yttrande där "betydelsen är motsatsen till orden". Denna rapport är en fortsatt studie på Peder Palmérs studie Vad är ironiskt tal: att hitta de auditiva ledtrådarna (2013). Materialet som ligger till grund för denna uppföljande studie består av inspelningar av tre olika talare med fem olika meningar i fem olika sinnesstämningar; glädje, ilska, allvar, ironi och sarkasm. Trettio män och kvinnor i åldern 18-60 år har lyssnat på dessa meningar och kategoriserat dem utifrån tolkad sinnesstämning. Till detta användes avsedd blankett.

Utveckling av modulbaserat inredningsystem för klädförvaring

Det här projektet har syftat till att utreda hur en vald målgrupp förvarar och vill förvara sina kläder samt hur ett klädförvaringssystem för denna målgrupp bör vara utformat för att uppfylla användarens krav och önskemål. Funktionalitet, användarvänlighet och ergonomi är begrepp som genomsyrat projektet från start till mål och målgruppen definierades i projektets början. Utbudet av klädförvaringssystem för dressing room i Sverige är idag väldigt begränsad. Kökstillverkaren Kvänum Kök AB har fått många förfrågningar om klädförvaringssystem som håller samma höga klass och exklusivitet som deras kök. Denna kategori, inredning för dressing room, lämnar ett stort hål i det annars så välfyllda utbudet av förvaringssystem på den svenska marknaden.

En bra plats för lek : kreativ och tillgänglig lekplats i Hedemora

For an outdoor environment to function optimally as a playarea requires that it is flexible, that is, contains places and elements that give room for the imagination and for own interpetretations, and also that the children in some way can influence and change their surroundings. It is also important to have variety, both in the sense that the playground has a unique character that distinguishes it from other places, and that it allows many different games and activities. There should for example be room for both wild games of running and moving around where many children can participate, and calm corners to withdraw to for rest or quiet play. A good playground should surprise, challenge and encourage children to discover their surroundings. One way to achive this is to use plants and materials from nature, whose irregular forms and structures can become interesting elements to explore. Vegetation also gives sence-experiences of various kinds, materials like twigs and leafs to play with and a place to play house.

Methane emission from nitrate-treated tannin rich feed for cattle in Vietnam

In developing countries such as Vietnam the population consumes more animal products for example milk and meat than before which requires greater livestock production. Ruminants contributes to more methane emission which creates a dilemma between food production and its environmental impact. By feeding ruminants with nutritive crops which humans can not assimilate the animal performance will increase in terms of better growth and milk production without inpinging on food that can be consumed directly by humans. Increasing animal performance reduces methane emission in terms of amount of methane in kg-1 milk and meat which today is much greater in developing countries than developed countries. The aim of the study was to investigate tropical tannin-rich legumes for their potential as a feed supplement for ruminants made in vitro.

Färg möter ljus - med inspiration från staden

This project is about color and light and how it affects the atmosphere in the city. I choseto look closer into the central parts of the city, a place where I often feel a lack of lightand color, especially during the winter season. In the beginning of the project I made ananalysis of how intense colors are used in the city and how we can use color as a tool tocreate effectful spaces. Further into the project I chose to look closer into the effects thatare made by the facades, how the light from the windows affects the room outside when the dark falls. At the end of the project I caught a feeling inspired by the city and applied it into an installation of light..

Uttorkningsmöjligheter i ett fuktskadat badrum med hjälp av spaltmetoden

Buildings today are built to maintain a healthy indoor environment and an efficient energy usage which is probably why damages caused by dampness has increased since the 1960?s.A study between year 2008 and 2010 showed that 26 percent of the 110 000 examined houses had damages and flaws caused by dampness that could prove to be harmful later on. This means that one out of four bathrooms risk the chance to develop damages by dampness. Approximately 2 percent of the houses had already developed water damages. It is here where the problems appear.

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..

Bacterial contamination of eggshells in deep litter floor systemsand conventional cages in Jordan

This study was carried out in Jordan with the purpose to investigate the bacterial microflora of egg shells from cage systems and from deep litter floor systems. Another aim wasto get a general impression of the hygiene, at farm level, of egg production in Jordan andthe factors affecting it.Eggs from two cage systems and three floor systems were analyzed, regarding bacterialcontamination of the egg shells. Egg samples were taken from the storage room, the eggcradle in the cage system and from the nest and floor in the floor system. To get a generalimpression of the hygiene at the farms, swab tests and air tests were performed. Swab testswere performed with a sterile cotton swab at the same units as the eggs were sampled andair tests were performed by opening petri dishes where the hens were staying.

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