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4526 Uppsatser om Sound pressure level - Sida 9 av 302
Tonala skillnader mellan en traditionell och en modern gitarrkonstruktion : En jämförelse mellan två klassiska gitarrer
During my studies to become a guitar builder at Carl Malmsten CTD, I have found an interest in the construction of the classical guitar. I am fascinated by the simplicity of its construction. A simplicity that becomes more complex when you start to study it in detail.In my final thesis I will not try to explain this complexity. The subject is to investigate two different principles regarding its construction. I would like to find out if the sayings concerning one of the principles will yield a guitar with greater ability to produce volume and projection.At a close distance the difference between the guitar?s volumes is not to speak of, but a significant difference can be seen regarding one of the guitars ability to project its sound.
Kronisk mitralisinsufficiens hos hund : samband mellan graden av klaffinsufficiens och det arteriella blodtrycket
Myxomatous mitral valve disease is a common disease in older dogs of small- to medium-size breeds. The mitral valve, and less commonly the tricuspid valve may be affected which causes them to leak blood from the ventricle to the atrium of the heart during systole. With increasing severity of mitral valve leakage the forward stroke volume ejected into the aorta decreases, which may lead to an increase in blood pressure in the pulmonary vein resulting in pulmonary edema. A decrease in cardiac output may lead to a decrease in blood pressure, but the body may respond in order to normalize the blood pressure. Franzén showed in 2007 that the systolic blood pressure was increased in dogs with severe mitral insufficiency.
Måla med musik, komponera med färg : En retrospektiv studie av den kreativa processen, bland bild, musik och synestesi
The relationship between color and music, and their relation to the human being and our surrounding universe has been subject of studies, theories and experiments since the old ages. From the ancient China and Persia to the present times, philosophers, scientists and artists have tried to explain these connections between color and music and also tried to find answers to this ancient enigma.The invention of the color organ c. 1730, an instrument that was intended to display color in addition to the musical auditive experience, was the first attempt to materialize the practical correlation between notes and color. This correlation has its foundation in the ideas of Isaac Newton, who through his book Optics published only a few years earlier, conformed the beginning of a new art culture: ?Visual music?, in which image and sound are the fundamental elements in the creative process.The ?visual music? concept is not only grounded in the ideas of music and sound, but also in the extraordinary creative capability of certain individuals.
Duke Ellington's Second Sacred Concert. : En verkstudie.
The aim of this work is to give an example of how archaeoacoustics can broaden our understanding of archaeological remains and to further contribute to the almost non-existing research of ringing stones. With a theoretical discussion about sound from three different perspectives and by means of using different kinds of analysis, this essay will show that there are unknown relations between the three known ölandic ringing stones and the cultural landscape of Öland. Possible patterns in the placement of the stones and the possibility of the sound in this soundscape will be investigated. The essay will also suggest a resonant stone typology and discuss the necessity of one. Finally, the intention is also to shed new light upon the discussion on what the uses of the ringing stones might have been..
Vi hör inte läraren! ? En enkätundersökning i årskurs sex om upplevd ljudmiljö i skolan
Noise in schools can have negative effect on the teaching environment and speech perception. The national Child Environmental Health Surveys (BMHE) conducted in 2003 and 2011 studied how 12-year olds experience their sound environment in school. Results showed that the number of pupils that experience annoyance from noise increased from 2003 to 2011.Aim: The aim of this study was to study how 12-year olds perceive their sound environment in school.Methodology and material: A quantitative questionnaire survey was conducted in the sixth grade at two schools. The questionnaire used included questions from BMHE and self-produced questions. Sixtynine students answered the questionnaire.Results: Over 50 % of the respondents experience annoyance from noise in school several times a week.
En grundläggande modell för att beskriva stadens ljudbild med utgångspunkt i dess rytm
The purpose of this essay is to state a fundamental model which can describe the sounds of the city, emphasizing on its rhythm. The essay is based on a theoretical study that deals with essential elements to describe a soundscape. The theories presented are founded on R. Murray Schafer's theses about soundscapes, Bert De Coensels theses about rhythmical sound patterns and Ambjörn Hugardts view on rhythm. The model that is presented stresses the importance of a multidisciplinary perspective when one attempts to understand and describe a soundscape.
Ångsterilisering av morötter. Infekterade med Lactobacillus plantarum.
The purpose of the project was to exam steams ability to sterilize carrots infected withLactobacillus plantarum. The project was a cowork with Brämhults Juice AB. They hadobserved an increase of Lactobacillus in the production of carrot juice during the summer. Tokeep the flavour of fresh fruits, the juice is treated carefully with heat. This means that thejuice only stays fresh for a few days, around two weeks for an unopened package and threedays for an opened package.In an attempt to remove the remaining Lactobacillus of the carrots, steam is tested as an extrastep in the production of juice.
Richard Pages Sound
Fem låtar från Richard Pages skiva Peculiar Life har analyserats med syfte att ta reda på vad det är som ger dem dess sound. Analyserna har gjorts genom läsning av bookleten till skivan, informationssökning på internet, genom att titta på videodagbok från inspelning av skivan och genom att lyssna på låtarna. Analyserna har delats upp i kategorierna skriven information, video, utrustning och låtanalyser. Analyserna har visat att alla led i produktionen har stor betydelse för slutresultatet. Informationen som samlats in har använts till att återskapa soundet genom att komponera, arrangera, producera, spela in och mixa fem egna låtar baserat på analyserna.
Den representativa demokratin och kompetenskraven : En studie av kompetensnivå och kompetenskrav på kommunpolitiker
The local politicians in Sweden are responsible for a great deal of the welfare system why one would assume that there are a lot of demands put on them - demands for certain skills or a certain level of competence. I have in this study tried to find out how the demands on the local representatives concerning the demands for competence and the actual level of competence among the politicians are affecting the local politics. This was done through investigating how the local politicians are perceiving their level of competence and the demands put on them, but also how the employees are perceiving the demands and the level of competence put on the politicians. The study was made in the municipality of Gislaved in Southern Sweden. I was using both quantitative method (an opinion poll among the politicians and employees in the municipality) and qualitative method (interviews with three politicians and three employees and literature studies).In order to investigate the demands for competence I split the concept into ?soft? competence (socially and emotionally based skills), and ?hard? competence (skills based on knowledge, education and experience).
Kan intag av mejeriprodukter med låg fetthalt sänka blodtrycket?
Sahlgrenska Academyat University of GothenburgDepartment of Internal Medicine and Clinical NutritionAbstractTitle: Does low fat dairy products reduce blood pressure?Author: Emma Bergman and Naman LimaniSupervisor: Lena HulthénExaminer: Anna WinkvistProgramme: Dietician study programme, 180/240 ECTSType of paper: Examination paper, 15 hpDate: May 26, 2014Background: It is estimated that at least a third of the population in Sweden have a high blood pressure with genetics, unhealthy diet and physical inactivity as the main contributing causes. High blood pressure is one of the greatest risk factors to develop cardiovascular diseases, which is the leading cause of death worldwide. Milk is a nutritional food product and previous research suggests that low fat dairy products may have blood pressure lowering effect.Objective: The aim was to examine the scientific basis of how low fat dairy products affect blood pressure.Search strategy: Twelve searches were conducted on PubMed and Scopus, where the chosen search terms were combined to produce a broad search as possible in the particular area. The search terms used were dairy, dairy products, milk, blood pressure and hypertension.Selection criteria: Studies on normotensive or hypertensive individuals who received low fat dairy products were included.
Prisma : Prisma
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.
Alfa-linolensyra från linfröolja och dess påverkan på blodtrycket -En systematisk översiktsartikel
Sahlgrenska Academy at University of Gothenburg Department of Internal Medicine and Clinical NutritionAbstractTitle: Alpha-linolenic acid from flaxseed oil and effects on blood pressure ? A systematic reviewAuthor: Christine Hårdfelt och Liduina van SitterenSupervisor: Helen LindqvistExaminer: Anna WinkvistProgramme: Dietician study programme, 180/240 ECTSType of paper: Examination paper, 15 hpDate: April 9th, 2014Background: High blood pressure is strongly associated with an increased risk of developing cardiovascular disease, particularly stroke. ALA-fatty acids have previously been associated with decreased blood pressure. Flaxseed oil is very rich in these fatty acids and has also been highlighted as an affordable and sustainable source.Objective: To investigate whether ALA-fatty acids from flaxseed oil may affect blood pressure in people with high risk for cardiovascular disease.Search strategy: Two searches in PubMed and Scopus were performed. The sample was specified by using specific keywords.Selection criteria: The criteria for inclusion of studies required that flaxseed oil was compared with a control and that blood pressure was measured as an endpoint.
"Om det är förnuftet som formar människan, så är det känslan som leder henne" - En studie om hur atmosfären på en E-handelssida påverkar kunderna
The increased competition in e-commerce puts pressure on e-businesses which makes it even more important to influence the visitors on their e-commerce sites. An often overlooked marketing tool is atmospherics. With the increased focus on e-commerce from both traditional and new e-businesses this marketing tool becomes even more relevant. The aim of this thesis is to investigate how the atmosphere on an e-commerce site influences the customers' thoughts, emotions and behaviors. We examine the effects the level of stimulus on a website has on the customer's emotions, attitudes, intentions, behaviors as well as the relationship between these variables.
City Sound Generator: Processen kring skapandet av ett interaktivt och generativt elektroakustiskt verk
Uppsatsen fokuserar på skapandeprocessen kring prototypen av det interaktiva och generativa elektroakustiska verket City Sound Generator. De konstnärliga beslut som togs under arbetsprocessen kommer att diskuteras i relation till rådande tekniska och konceptuella restriktioner, tidigare forskning samt andra kompositörers verk. Vidare kommer dessa beslutsreflektioner ligga till grund för en diskussion kring huruvida prototypens klingande resultat bör benämnas som musik eller inte..
Ljudabsorbent för öppna kontorslandskap
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.