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4526 Uppsatser om Sound pressure level - Sida 18 av 302

Design av en ejektorspädare samt ett system för partikelmassmätning av dieselavgaser

This master thesis was a subtask of a project called EMIR-1. The goal with the thesis was tobuild a system for particulate mass measurements in one of the engine test cells at KTH. Theparticulate mass measurements are planned to be measured with a TEOM.The exhaust gases must first be diluted with air before the sample is sent to the TEOM.Therefore an ejector diluter for this matter also was designed and evaluated in the thesis.Emissions measurements have been done both with and without dilution to determine thedilution ratio. Tests have been done for different speeds and loads.Problems with stability of the dilution ratio have been an issue throughout the process andpressure pulsations in the exhaust pipe are believed to be the cause. More tests have to be done tomake sure that this is the problem.One idea is to make the inner diameter of the diluter nozzle smaller and see if it changes thedilution ratio stability.

Fuktkvotens inverkan på oljeupptag och pigmentinträngning i tall (Pinus sylvestris L.) och gran (Picea abies L. Karst) vid impregnering med Linotechmetoden :

Wood has always been an important material for people, and it is used for many applications. As for example, fuel for cooking and heating houses, construction materials and for constructing means of transport. Since wood also is a material that with time biologically degrades due to activity by micro organisms and wood fungi it is important to find ways to protect and further lengthen the life span of the material when in service. One method is to decrease the amount of water in the material by impregnation with an hydrophobic oil. The Linotech method which uses only pure linseed oil is one such possible method. The aim of this study was to investigate the possibility to at the same time impregnate and stain/colour wood samples of pine and spruce by using the Linotech method.

Gör det själv!: Att ta sig an andra instrument för att bli en bättre trummis

Den här uppsatsen behandlar ett konstnärligt projekt där fem låtar inom rockgenren skrivits och spelats in av en och samma person. Syftet är att utvecklas på sitt huvudinstrument, i det här fallet trumset, genom att spela in låtarna och spela samtliga instrument själv. Undersökningen fokuserar på varför man kan ha nytta av att bemästra andra instrument för att bättre förstå sitt eget. Loggbok har förts under hela processen för att kunna kartlägga vad som lett fram till nya upptäckter och insikter.Många duktiga musiker har det gemensamt att de bemästrar fler än ett instrument. Att gå in i de andra ensemblemusikernas roller ger individen en bredare koll på helheten.

Lärande och arbetsformer för sång inom populärmusikaliska genrer

Syftet med studien var att få ökad insikt och förståelse för lärande av pop- , rock- och soulsång. Speciellt intresse ägnades moment i sångundervis- ningen som berör stilenligt sound, sväng och personligt sound/uttryck, och undervisningsmetoder som kan vara lämpliga. Efter granskning av forskning i böcker, tidskrifter, artiklar och sidor på Internet utfördes intervjuer av tre aktiva sångpedagoger i Sverige som arbetar med den populärmusikaliska genren som utgångspunkt. Resultatet visar att elever kan lära sig att sjunga pop och rock stilenligt och med sväng främst genom att lyssna och härma förebilder och föregångare inom stilen, samt genom att eleverna får möjlighet att träffa en pedagog som kan vägleda eleven på ett fruktbart sätt i hans eller hennes utveckling. Det är också av intresse att eleverna får lära sig att reflektera över vad det är de hör i musiken, vad de tycker om och inte, och finna sin egen identitet inom stilarna.

Implementeringsarbete i den svenska grundskolan

The study has shown that retailers in the mid-price segment differentiate their brand through developing a strong company identity around the brand. The personality involves store atmosphere, merchandise and advertising. Larger companies have chosen to lay the responsibility on management level, which facilitates on store level. By controlling the strategies on a central level the company can make sure that the stores are steered in the direction that the company wants them to be steered in, and also that they follow the positioning-concept. The company can also devote its efforts to working with its core value, which is service.

Giganters Kamp - en undersökning av konfliktlösning och förhandling i handelskonflikter

This paper is an attempt to distinguish the specifics of the conflict resolution process and the negotiations during trade conflicts. First of all, this kind of conflict almost always contains some kind of protectionism which doesn?t make sense economically. Imposing trade-barriers decrease the overall welfare of your own nation and the only winner is the protected sector. These policies can be introduced since the political pressure from threatened industries is usually much stronger than the pressure from the consumers who will bear the burden of protectionism.

Lust att lära sig läsa : En jämförelse av två olika läsinlärningsmetoder; ljudmetoden och Whole language (kiwimetoden)

AbstractMy purpose with this study was to learn more about different ways to teach children how to read and to investigate how teachers can use more fiction when they teach.During the years that I have been working in school, I have only met teachers who use a method that is built on sounds. The children learns to read from books where the words is not put in their right purpose; for example; we can se a sun, a dear looks down in a lake.After my teacher-education in literature I became more and more interested in if it could be possible to use more fiction when you teach children how to read. I also wondered if it was possible to find readers where the sentences are put in a meaningful story.I heard of a method called Whole Language, or the kiwi-method and I decided to find out more about that method. I decided to make a comparison between the ?sound-method? and the Whole Language-method.I have been using qualitative interviews with both children and teachers with experience from these different ways of teaching.

Påverkas miljökuznetskurvan olika av ekonomisk frihet än av demokrati

According to the theory of environmental Kuznets curve there is a relationship between carbon emissions and GDP. The relationship has an inverted U-shape. Carbon emissions rise initially and then decreases once a certain level of GDP is obtained.This essay interprets earlier studies in the field of environmental economics and uses public choice to seek answer on how the population acts on aggregate level. This essay analyses 115 countries in cross-sectional data. The analysis shows that there is a significant relationship between carbon dioxide emissions and GDP that is increasing at first and then decreases for a certain level of GDP.

Att mäta ankeltryck i primärvården : Distriktssköterskors och distriktsläkares uppfattningar om en undersökningsmetod och dess användning

Background: Peripheral arterial disease (PAD), as a consequence of atherosclerosis in the arteria of the limbs, affects one of ten Swedes older than 65. PAD can develop slowly and silently, and involves an increased risk for cardiac infarction and stroke. Measurement of the patient´s ankle blood pressure and calculation of the ankle-brachial index is an evidence-based method to discover PAD. Objective: To investigate how district nurses and general practitioners perceive this method of examination and experience possible obstacles to why it is not more commonly applied at primary health care centres. Method: Data collected by semi-structured interviews have been processed by qualitative content analysis with a manifest onset.

Inferno Shield : Konstruktion av avtryckare med sladd

This thesis was performed at Indusec ABin Stockholm. Indusec AB is a companythat develops security solutions.Together with the Police of Sweden theyhave gotten the assignment to develop anapplication based on one of theiralready existing product Inferno soundbarrier. This application is supposed tobe mounted on a ballistic shield thatthe police use, the application consistsof a speaker box (the sound barrier) anda trigger with wire. The trigger withwire is the part that will be addressedin this thesis. The application willthen be used as a tool to surprise atarget at various skirmishes.The project consists of three majorphases, pre-study, concept generationand modeling.

En plats att växa på? : Unga konfirmandledare och ledarskapsrollen

The study has shown that retailers in the mid-price segment differentiate their brand through developing a strong company identity around the brand. The personality involves store atmosphere, merchandise and advertising. Larger companies have chosen to lay the responsibility on management level, which facilitates on store level. By controlling the strategies on a central level the company can make sure that the stores are steered in the direction that the company wants them to be steered in, and also that they follow the positioning-concept. The company can also devote its efforts to working with its core value, which is service.

Var lägger man problemet ? hos barnet eller den omgivande miljön? : En textanalytisk studie av dokument skrivna av specialpedagogen i förskolan

The purpose with this thesis was to study the special pedagogical perspectives that stood out in documents written by the special teachers in preschool. In order to maintain the thesis research questions a text analysis was carried out on the document ?Handledningssamtal? that was used by the special teachers in their contact with the teachers in preschool. The documents were analyzed based in the special educational perspectives and the results and measures from the analysis were divided into three levels; individual, group and organizational level. Finally a study of the connection between the analysis and the measures was carried out and the result was reported in a typology schedule inspired by earlier research.

I handlingsplanens diskursiva spår : En studie av diskurser på nationell, regional och lokal nivå om våld i nära relationer

The aim of this study was to analyze how discourses about domestic violence emerges in policy and practice, and to investigate how those discourses may change from a structural, political level to a local, practical level. The research questions focused how the problem of domestic violence is formulated at national and local level, scrutinizing the different discourses framing and reproducing the causes and solutions of the problem, and also to deduce how different context affects formulations. The empirical material consists of policy plans and interviews with social workers. The findings indicates that the issue of domestic violence is articulated differently on different levels. In action plans on the national level, the domestic violence is formulated within a structural discourse, being a problem on a (gender-) political level, whereas professional social workers recognizes domestic violence as a personal problem within an individual oriented discourse.

Att rekrytera till en skola där alla elever har en funktionsnedsättning

The study has shown that retailers in the mid-price segment differentiate their brand through developing a strong company identity around the brand. The personality involves store atmosphere, merchandise and advertising. Larger companies have chosen to lay the responsibility on management level, which facilitates on store level. By controlling the strategies on a central level the company can make sure that the stores are steered in the direction that the company wants them to be steered in, and also that they follow the positioning-concept. The company can also devote its efforts to working with its core value, which is service.

Utvecklas man som person då man blir chef? : en retrospektiv studie

The study has shown that retailers in the mid-price segment differentiate their brand through developing a strong company identity around the brand. The personality involves store atmosphere, merchandise and advertising. Larger companies have chosen to lay the responsibility on management level, which facilitates on store level. By controlling the strategies on a central level the company can make sure that the stores are steered in the direction that the company wants them to be steered in, and also that they follow the positioning-concept. The company can also devote its efforts to working with its core value, which is service.

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