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4155 Uppsatser om Mechanical engineering - general - Sida 48 av 277

Free Valve Technology : ? Utveckling av ett styrsystem för ett elektronisk styrt pneumatisk-hydraulisk ventilsystem på en förbränningsmotor

Detta examensarbete är utfört på uppdrag från AVL Södertälje Powertrain Engineering AB.Målet med arbetet har varit att utveckla ett styrsystem för ett elektroniskt styrt pneumatiskhydraulisktventilsystem på en encylindrig förbränningsmotor i en testcell. AVL är enoberoende firma som utvecklar drivlinor med förbränningsmotorer samt instrumenterings- ochtestsystem. Ventilsystemet, med ett fungerande styrsystem, ska användas i AVLs utvecklingsochforskningsarbete på förbränningsmotorer.Ventilsystemet,Free Valve Technology, är utvecklat av Cargine Engineering AB och består avelektroniskt styrda pneumatisk-hydrauliska aktivatorer som opererar en motorventil individuellt.Aktivatorernas styrsystem har utvecklats helt iSimulink och implementerats som en integreraddel i det av AVL utvecklade motorstyrsystemet Raptor. Hårdvaran och plattformen är ett rapidprototyping system från dSPACE GmbH. Systemet har visat sig fungera tillfredsställande i entestcellmiljö vid lyfthöjder större än 3 mm och varvtal lägre än 2500 rpm, även underförbränning.

Lättläst väcker starka känslor ? en studie av bibliotekspersonals inställning till den lättlästa litteraturen och dess användare utifrån Pierre Bourdieus kultursociologiska teorier.

The purpose of this masters´ thesis is to examine the attitudes of public librarians towards easy-to-read literature and see whether a connection between these attitudes and accessibility can be made. The study has been performed with a qualitative approach and consists of four depth interviews with emphasis on how librarians relate to and experience easy-to-read literature and its´ users. As complement to the depth interviews, two micro interviews were made. The study can be seen as a follow up to a survey I made 2005, commissioned by The centre for Easy- to-Read. As analytical tools the cultural sociological theories of Pierre Bourdieu, with his concepts field, cultural capital and habitus, have been used.

Föreningsengagemang och politiskt deltagande ? en tvetydig historia : En studie av Högsby och Växjö kommunfullmäktige

AbstractThe political parties in Sweden are losing members. This is seen as a problem because the political parties are the base and the recruiting ground for members to decision-making bodies. Social movements are seen as a place where people with a modest background could express their opinions and also learn the political process. These movements have also lost members during the last decades and this could seriously affect the representation of lower social groups among the decision-makers. This essay emanates from Robert D.

Revisionsplikten för små aktiebolag : Hur hanterar revisionsbyråer avskaffandet av Revisionsplikten?

Tidigare empirisk forskning förevisade samband mellan optimism och hälsa, likaså mellan self-efficacy och hälsa. Föreliggande undersöknings syfte var att utifrån könsskillnader mellan kvinnor och män undersöka hur op­timism och self-efficacy samverkar med deras självskattade hälsotillstånd. Deltagarna var 190 högskolestudenter, varav 113 kvinnor, i Mellansverige. Statis­tisk analys utfördes genom t-test, multipel linjär regressionsanalys och jämförelse mellan korrelationskoefficienter. Mätinstrumenten Life Orientation Test?Revised, General Health Questionnaire och General Self-efficacy Scale, samt ett påstående om fysisk hälsa användes.

Förutsättningar att utforma stationsbatterier i vattenkraftverk med Li-jonteknik

In hydropower plants it is necessary to always have local power supply. Therefore, the plants are equipped with batteries as stationary back up power. Vattenfall Vattenkraft is using lead acid batteries but has been investigating alternatives to replace them. The aim of this study is to investigate the potential of using Li-ion technology as back up power.The study showed that Li-ion batteries have many qualities. The Li-ion technology will decrease the space and maintenance demand.

Energikartläggning av polishuset i Gävle : Åtgärdsförslag för ett minskat energibehov i fastigheten Gävle Söder 17:10

The objective of this work was to introduce measures to reduce energy and water demand at Gävle Söder 17:10. To succeed, this energy audit has been made. The work is based on collected statistics from the property owner Norrporten, measurements, literature review and through consultation with experts in the field. Two models, one for each building, have been created in the simulation program BV2 to estimate the potential of energy measures based on the collected information. The models in BV2 have been verified against the statistics of the energy consumption.With the help of calculations and simulations, seven cost-effective measures have been identified.

Västerparks demensboende

During Spring semester 2011, Linda Engstrom and Malin Heder performed ?Golden Ratio?, a thesis which included 22.5 hp. The thesis followed the syllabus for the Degree Project for degree of Bachelor of Science in Innovation and Design Engineering (MSGC12) which was a unit in the Innovation and Design Engineering program within the Faculty of Technology and Science at Karlstad University.The client was Crem International AB, a company located in Åmotfors that develops the design, manufactures and markets coffee machines. The supervisor at the company has been Peter Larsson and supervisor at Karlstad University has been Monica Jakobsson. Examiner for the thesis has been Professor Fredrik Thuvander at the Faculty of Technology and Science at Karlstad University.Crem International AB controls a patent, representing a new technology to streamline and minimize use of energy during the coffee preparation and results in a good coffee quality.

Biomekaniska berättelser : En analys av forskningkommunikationen runt den biomekaniska armen

The pdf is excluding images, because of uncertainties regarding copyrights. Instead I have put links for each picture so you may find them on the Internet. For a list of links to the online sourcematerial, please visit http://del.icio.us/Cyborguppsats.

Erfarenheter från Olika Produktutvecklingsprocesser vid Utvecklingen av en Atmosfärisk Vattengenerator

This Master of Science thesis was completed at the Department of Machine Design at the Royal Instituteof Technology in Stockholm in collaboration with Lund Faculty of Engineering, Luleå University ofTechnology and Stanford University. At Stanford University a global product development project wasrealized as part of the course ME310. The project was initiated by the American company ImmerseGlobal whose vision was to develop a new type of Atmospheric Water Generators, a machine that absorbsthe moisture in the air and via a water system transforms it to pure drinking water. The project was partlyfinanced by the Product Innovation Engineering program, a Swedish research and development programfor increased innovation capability in organizations.In parallel with the global project in the ME310 course the product development process was studied inorder to compare it with a product development course at the Royal Institute of Technology, IPU. Thetwo courses are similar to each other in several aspects.

Varför terrorism? - en studie av Irländska republikanska armén

AbstractThis study has two aims:[X] to create an analytical framework consisting of factors that might trigger terrorism[X] to apply the analytical framework on the case of IRA, in order to be able to examinewhich factors that exist behind the appearance of terrorism in the current caseTo reach the first aim the author has studied the theoretical discourse on the complexed issueof terrorism. This has constituted the point of departure for the creation of an own analyticalframework. The purpose of the framework is to bring clearness to why terrorism appears. Theanalytical framework is not only suited for application on the case of IRA, but for applicationon terrorismcases in general. To reach the second aim the framework was applied on the caseof IRA.The aims of this study have been fulfilled through the method of qualitative text analysis.

Kartläggning av allmänhetens attityd till hörselnedsättning och självskattad kunskap om hörsel ? en enkätundersökning

Objective: 1.4 million people in Sweden state that they are having problems with hearing and the majority havehad no contact with the hearing rehabilitation services. To have a hearing loss seems to be associated withseveral negative attributes. This could be due to bad attitude and insufficient knowledge on hearing loss intoday?s society.Purpose: The purpose with this study was to map the adult populations attitude towards hearing loss and selfratedknowledge of hearing with a survey.Methods: A web survey was made for this study. An official link to the survey was shared from two Facebookaccounts to a total of 997 contacts and a total of 247 responses were collected.Results: The majority of the respondents have estimated their general knowledge of hearing to fairly extensivefollowed by very small.

Stigmatisering av depression och dess inverkan på vårdsökandeprocessen ? En litteraturstudie

Introduction: The relationship between depression and stigma is known to cause suffering among the depressed population. Depression is also one of the most common diagnoses in the world. Stigma caused by society leads to people being divided into groups which in term results in a general loss of status and discrimination. Aim: To identify the stigma of depression and its impact on help-seeking behaviour and to identify the underlying attitudes. Method: We chose to make a literature review to explore and compile the current research on the subject.

Försäkringsplikt i kommersiella entreprenadavtal

Construction projects are generally designed as a general contract or a complete contract. In a general contract the commercial contract that is being used is AB 04 and related advice and instructions, AMA AF 07. In AB 04 there is an insurance requirement that stipulates that the contractor shall take all risks and liability insurance for the contract where the client must be co-insured.Construction law is almost exclusively regulated by the various standard contracts, one of those is AB 04. The Construction Contracts Committe is an organization that has published the standard contracts in this area of law and also the advice and instructions to help the parties to understand the agreements. The insurance requirement occurs in an area of law that is complex and the meaning of the concept is not entirely clear, nor which of the parties? interests and responsibilities that are covered by the types of insurances that are provided by the insurance requirement.

Hälsa i sociala medier : En kvalitativ studie om hur hälsoinformatörer upplever och påverkas  av hälsobudskap i sociala medier.

Title: Hälsa i sociala medier - En kvalitativ studie om hur hälsoinformatörer upplever och påverkas  av hälsobudskap i sociala medier.Title: Health in social media - A qualitative study of how health communicators perceive and are affected by health messages in social media.Author: Anna HedströmInstitute: Karlstad University. Faculty of health, nature and engineering sciences.Tutor: Owe StråhlmanDate: 150615Number of pages: 34Keywords: eHealth literacy, health communication, health informers, health literacy, health messages, media literacy, social media Background: With an increased interest in diet and exercise, also health and fitness messages have increased in both traditional and social media. The general guidelines on physical activity and diet are forgotten as training tips increase in the media. Research shows that it is common for individuals to retrieve information from the media when it comes to their own health. In doing so media literacy, health literacy and eHealth literacy becomes increasingly important for health communicators and for those who receive health information. Objectives: The aim of this study was to examine health communicators? experiences of health messages in social media, and how they are affected by them. Method: Qualitative interviews were chosen as a method to collect data.

Introduktion till online PD : en specificering och jämförelse av tillgängliga mätsystem

During Spring semester 2011, Linda Engstrom and Malin Heder performed ?Golden Ratio?, a thesis which included 22.5 hp. The thesis followed the syllabus for the Degree Project for degree of Bachelor of Science in Innovation and Design Engineering (MSGC12) which was a unit in the Innovation and Design Engineering program within the Faculty of Technology and Science at Karlstad University.The client was Crem International AB, a company located in Åmotfors that develops the design, manufactures and markets coffee machines. The supervisor at the company has been Peter Larsson and supervisor at Karlstad University has been Monica Jakobsson. Examiner for the thesis has been Professor Fredrik Thuvander at the Faculty of Technology and Science at Karlstad University.Crem International AB controls a patent, representing a new technology to streamline and minimize use of energy during the coffee preparation and results in a good coffee quality.

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