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731 Uppsatser om Measurement bias - Sida 29 av 49

Den förvrängda invandraren : En kvalitativ studie om hur publiken tolkar och genomskådar invandrarrepresentationer i svenska medier

The aim of this study was to seek knowledge about how the media audience interprets media representations of immigrants as well as the construction of ?us? and ?them? that is created from the media report.We implemented two focus group interviews, one containing only ethnical Swedes and one holding a variety of people with different ethnical backgrounds. The focus groups got to read nine news articles from different Swedish news papers selected by us, based upon previous research. These articles got to serve as the basis of the discussion.To supplement the focus groups, which got to represent the media audience, we also interviewed two different persons we choose to call informants, whom are both immigrants and are or have been politically active and often appear in local media.The interviews were our empirical material which was used for analysis. The method we used was qualitative analysis of meaning and was based upon a hermeneutic starting point, meaning that all humans are interpreting beings.

Trafiken till Göteborgs södra skärgård - En annorlunda kollektivtrafik

Today?s wind power plants are only compensated for their reactive power consumption at no-load. As the wind power plants grow bigger the amount of reactive power they need also increases. This is no longer a problem that can be ignored, especially as the net owners are beginning to charge the reactive power they transport.In this thesis a couple of different methods of compensation and their prices will be discussed and evaluated. Problems, such as self-excitation, that can occur if one fully compensates the wind power plant will also be brought to surface.

ABC-kalylering i grossistföretag -modelldesign och effekter

Background: A large number of companies works as a link between manufacturers and final users. These companies buys and stores goods to be able to deliver when a need comes up later in the chain. The storage could have a negative effect on profitability and therefore places great demands on the management control systems. ABC as a method has been used with some success in manufacturing for over ten years. In wholesale companies the method is not frequently used.

Maskinduglighet på planlaserskärare

Lars Höglund AB is one of Scandinavia?s most qualified manufacturers of sheet metal products and provides custom designed products of very detailed precision. One of the main methods of manufacturing is laser cutting. When Lars Höglund AB signed up a new customer, with high demands in tolerances for the products, Lars Höglund AB thought it would be necessary to know the capability of the laser cutting machine. Also the process of how to retrieve this capability was interesting. The capability will be researched for the following elements: Cutting right angles in squares with a corner radius of 1 mmCutting corners which are not right angleCutting of circles with constant radius Measurements were made on 150 pieces of sheet metal details, which had been cut out by the machine.  The data from the measurements where later used to study the capability.

Vattennivåreglering i Avesta Lillfors : På uppdrag av Fortum Generation AB

I denna rapport utreds olika metoder för att kunna reglera vattennivån i vattenkraftverket Avesta Lillfors i Dalarna. Två kraftverk ligger endast 900 m uppströms och detta gör att svarstiderna blir korta och regleringen blir lätt nervös. Att använda sig av vattennivåreglering i ett kraftverk för-enklar dess styrning då anpassning till inflödet sker automatiskt.En flödestabell har tagits fram genom mätningar i turbinen, med hjälp av Winter-Kennedy-metoden. Denna tabell används för att kunna fram-koppla regulatorn och därmed dämpa stora variationer i inflödet. Dessu-tom har en modell av älven skapats och testats med en återkopplad PID-regulator.

Rostfritt stål som ett alternativt material till koppar i tappvattenledningar för bostäder

Today?s wind power plants are only compensated for their reactive power consumption at no-load. As the wind power plants grow bigger the amount of reactive power they need also increases. This is no longer a problem that can be ignored, especially as the net owners are beginning to charge the reactive power they transport.In this thesis a couple of different methods of compensation and their prices will be discussed and evaluated. Problems, such as self-excitation, that can occur if one fully compensates the wind power plant will also be brought to surface.

Jämställd hörselvård : Teknisk hörselrehabilitering ur ett könsperspektiv

Idag finns få studier gällande könsskillnader inom hörselvården, däremot finns forskning inom andra vårdområden. Hörselvården består bland annat av rehabilitering, där den tekniska hörselrehabiliteringen är en stor del. Den innefattar främst utprovning av hörapparater och hörseltekniska hjälpmedel.    Syftet med denna studie är att undersöka om det finns några skillnader mellan män och kvinnor gällande den tekniska hörselrehabiliteringen.    Metoden för studien är kvantitativ och deskriptiv. En journalgenomgång inom ett enskilt landsting genomfördes. Totalt ingick patientjournaler för 56 personer i undersökningen.

En kategorisering av våld i dator och tv-spel

This essay will focus on video and computer game violence. We hope to uncover, with the help of semiotics, according to Barthes design, if this kind of violence can have a negative effect on youth and adolescents. How intense is the violence and how graphic is it?. PEGI is the European measurement for game age limits.

Elektronisk Handel : Framtagning av två implementeringsmodeller

This report is about helping Q-Med AB in Uppsala to start its implementation of uncertainty of measurements analyses in their manufacturing department. Prior to this, the company relied solely on personal experience or did not take this uncertainty into consideration at all during different kind of measurements, which means that some of the processes that the company previously believed were within specified acceptance limits, will actually fail when considering these sources of uncertainties.Q-Med AB needed some sort of instruction to help the company, in a systematic way, to investigate different types of disorders that are affecting all kinds of measurements. This instruction includes a short summary about measurements and uncertainty of measurements in general and a detailed procedure about how these uncertainties are going to be handled in their daily work.The goal was to be able to use this instruction to systematically locate, eliminate (when possible) and analyze all kinds of disorders when measuring. Q-Med is using a lot of different types of instruments when measuring different types of quantities, including temperature, mass, pressure and density. This instruction will hereafter be used for every instrument, regardless of quantity and type of instrument.The instruction is tested through 4 different kinds of measurements, for mass, temperature and humidity.

Impulsmätning medelst gradvis deflektion av alla sprayer från högtrycks common rail spridare

A method for measuring the total impulse from a multi hole diesel injector, introduced inprevious thesis work, ?Development of a method and a device for measuring the momentumrate of fuel sprays?, by Mikael Lindström, has been further developed and tested. The conceptis to simultaneously deflect all sprays from a multi hole diesel injector by using a bell shapeddeflector. The fuel sprays are deflected straight down from their initial umbrella angle, andthe resulting deflection force is measured in a thin strained section of the load cell. The strainis given by three strain gauges, with quarter-bridge circuitry for each gauge.

Barn med 22q11.2 deletionssyndromet ? hur hör de?

The 22q11.2 deletion syndrome is a common genetic disorder that affects for example the heart, palate, immune system and hearing and therefore affects a child?s development. The purpose of this study was to investigate the proportion of children (0-18 years) with 22q11.2 deletion syndrome who have a hearing loss. A retrospective study of 103 children diagnosed with 22q11.2 deletion syndrome was conducted by medical records. Of the 103 children, 51 were boys and 52 were girls.

Optimering av indunstningsprocess

The wastewater treatment plant at GE Healthcare's facility in Uppsala deployed a three step vacuum evaporator in 2007. The purpose of this was to pre-treat wastewater containing amines. The purpose of this thesis was to optimize thisprocess by reducing the amount of concentrate without releasing more nitrogen tothe environment and to examine if density could be used as a measurement of whenthe process should be ended.To create a foundation for optimization six test cycles were conducted with samples taken from all three steps. Both concentrate and condensate were tested as well as the incoming solution. Furthermore, the thesis has been expanded with a benchmarking part examining two different evaporators.

Medelhavskostintervention minskar graden av depression hos vuxna - En systematisk ?versikt

Syfte: Syftet med denna systematiska ?versikt var att unders?ka medelhavskostens p?verkan p? grad av depression hos vuxna personer med depression. Metod: S?kningar utf?rdes i databaserna PubMed och Scopus under mars 2023. Inklusionskriterier var randomiserade kontrollerade studier, vuxna ?18 ?r med diagnostiserad depression enligt sj?lvskattningsformul?r eller medicinskt utl?tande. Utfallsm?ttet var grad av depressionssymtom m?tt med skalorna MADRS (Montgomery-?sberg Depression Rating Scale), BDI-II (Beck Depression Inventory II) eller DASS-21 (Depression Anxiety Stress Scale). Artiklar som inkluderat fler interventioner i sina studier ?n kostintervention eller artiklar som ej var skrivna p? engelska exkluderades. De studier som m?tte kriterierna inkluderades och kvalitetsgranskades enligt SBU:s (Statens beredning f?r medicinsk och social utv?rdering) granskningsmall ?Bed?mning av randomiserade studier ? effekt av att tilldelas intervention?.

Att förhålla sig till den nära historien - och planera för den avlägsna framtiden :

This thesis concerns the term contemporary history and its role in landscape architecture. Today?s contemporary history is defined as the planning and architecture connected to the 60s and 70s, in Sweden carried out as a large scale planning project called ?Miljonprogrammet?, which set out to build one million new residences in ten years. Initially, the term contemporary history and its complex of problem are examined. To deepen the picture of today?s situation, a historical review has been made, starting in early 1900s ending in 2000s concerning how different planning and architectural influences has varied through the years.

Nivådiagnos med sensorfusion : Utveckling av koncept för nivåmätning i lutande tankar 

Today?s system to measure the volume in a tank consists of a vertically placed sensor. When a vehicle is tilted the level of the fluid might change and if the volume is calculated based only on the information from the sensor it could result in a incorrect value.This thesis exams a new method to calculate the volume in tanks by using sensor fusion to crosscheck the i formation from the level sensors when the vehicle is tilted. The information is then used to see if it is possible to identify the grade of tilt by the change of fluid level. If the grade of tilt can be measured then the volume can be calculated in a more accurate way.

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