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624 Uppsatser om Shear bond strength - Sida 14 av 42

Överallt förekommande datorer En undersökning om Ubiquitous Computing och dess problemområden

I vår vardag använder vi oss av mängder av redskap och föremål som hjälper och roar oss. Dessa föremål har de senaste åren tenderat att bli mer och mer tekniska och har kapacitet att utföra saker som sedvanliga datorer tidigare gjorde. Detta område kallas för Ubiquitous Computing, eller Ubicomp. Syftet i vår uppsats är att belysa forskningsområdet Ubicomp och några av dess problemområden. Kontextmedvetenhet, Integritet och Människa- datorinteraktion är de tre problemområden som vi valt utifrån befintligt litteratur.

Utvärdering av infästningar i sandwichkonstruktioner för fordonsapplikationer

The automotive industry is increasingly studying lightweight solution in their designs, also rational production and low costs in materials and manufacturing methods are of great interest. This thesis consisted in the practical evaluation of anchors for sandwich panels. The object was to study loads of shearing and pull out of the plane. The experiments were carried out on panels made up of 1mm aluminium coatings and 50mm extruded polystyrene (XPS) at its core. As the fasteners used simple methods such as blind rivets, screw and glue.

Punktlasttestning av olika bergartstyper i Kiirunavaaras liggvägg

Examensarbetet ingår i den slutliga delen av kandidatutbildningen i naturresursteknik och utgör 15 högskolepoäng. Utbildningen är inriktad mot geologi och det avslutande arbetet ska ha anknytning till ämnet. Under våren 2012 presenterade representanter för LKAB förslaget att basera examensarbetet på att dokumentera hållfastheten hos bergarter från Kiirunavaaras liggvägg med hjälp av punktlasttestning. Tidigare undersökningar av hållfastheten hos bergarterna i Kiirunavaara har främst gjorts genom enaxiella tryckhållfasthetsmätningar. Det finns ett behov av att undersöka hållfastheten hos bergarterna i Kiirunavaara då gruvbrytningen sker djupare ned i jordskorpan och kraven på säkerheten ständigt ökar.

Hantering av risk i en Leveraged Buyout-miljö: Ägarförändringsklausulen, ett nytt fenomen?

The change of control clause is nowadays a well used covenant in the Eurobond market, with the aims to protect bondholders in case of a leveraged buyout. This thesis intend to evaluate whether the change of control clause is a new phenomenon in the Eurobond market today and to estimate what have been the driven force for the popularity of it. The thesis found that the change of control clause already existed before and thus it is not a new phenomenon. Several factors where found though to explain the extended use of the clause today. Starting in 2005 the LBO activity increased rapidly, exposing almost every company to the risk of LBO.

Turismrelaterade företags användning av sinnesupplevelser : Lukt, känsel, hörsel, smak och syn

The purpose of this study is to investigate how customers' senses can be influenced by the experience of a visit to a tourist company and how six tourism businesses today utilize this phenomenon. The problem is that the phenomenon of sensory impact is a relatively newly discovered substance and not sufficiently established in the market.This essay is about how six selected tourism businesses use the human?s five senses during a visit by the companies. The information from each company is gathered by interviews that took place at each company with responsible employees. We have also met with experts in different sensory areas to best find out how companies can make best use of sensory experiences to influence their customers.

Lyftanordning för kraftuttag

This thesis has been developed inassociation with Strängbetong AB, Sweden.A few years backCementa AB introduced a new type of cement on the Swedish market: Byggcement,which is a Portland Limestone Cement. This type of cement is better for theenvironment and cheaper than Rapid Hardening Cement which is used today at SträngbetongAB.Strängbetong AB isvery interested in a change of cement in the factory and wants to know what ittakes to make a transition from Rapid Hardening Cement to Byggcement.This final projectaims at investigating how the workability and strength development are affectedby a transition from the existing cement to Byggcement and how we can change theproperties of the concrete by adding different types of superplasticizers. Laboratory and factoryexperiments were made, to investigate the transition..

Chefskap eller inte : Om vad upplevelsen av socialt stöd i tonåren har haft för betydelse för det framtida yrkeslivet

Synen en individ har på arbete och tron på sin förmåga inom yrkeslivet formas i många fall redan under tonåren. Anknytningsrelationerna till föräldrarna och det sociala stödet inom en familj påverkar den enskilda individens karriärsidentitet och framtida yrkesval. Studien syftar till att belysa aspekter av hur den upplevda synen på tonåren i efterhand gällande familjerelationer, skolgången och synen på arbete har spelat roll för enskilda individers nuvarande yrkesval, karriärsidentitet, och tron på den egna förmågan. Studien har genomförts genom kvalitativa intervjuer av en grupp chefer (med 5 chefer och 4 icke-chefer), och visade bland annat på att cheferna upplevde ett större socialt stöd från sin familj under tonåren, jämfört med icke-cheferna. Resultatet diskuteras utifrån aspekter som berör det sociala stödet betydelse för framtida karriärsval, och vikten av skolans betydelse för framtida yrkesval och karriärsidentitet.

El Niño Southern Oscillation och dess atmosfäriska fjärrpåverkan.

This paper is a literature study aiming to describe scientists newest theories andknowledge concerning the El Niño and Southern Oscillation. Firstly I have described the?normal? conditions with rising and sinking air in Hadley- and Walker-cells in theequatorial Pacific and from there moved on to explaining the reversed circulation patternsand higher sea surface temperatures (SST) leading to rising air and anomalousprecipitation in eastern Pacific constituting the El Niño phenomenon. My outermostinterest regarding El Niño has been the associated teleconnections, especially in nontropicalareas. I have described the El Niño effect on the Indian summer monsoon, ontropical cyclones and on storms and precipitation on higher latitudes.

V?GEN IN I EN KRIMINELL LIVSSTIL En kvalitativ intervjustudie om f?re detta kriminellas gestaltningar av v?gen in i kriminalitet

The aim of this study is to gain an understanding of former criminals' own experience of their entry into criminality and to identify and analyze the factors they use to explain their path into criminality. To study this area, a qualitative method has been applied with five semi-structured interviews of ex-criminals from an organization that works to help and support people who have previously been involved in crime by offering employment, education, and rehabilitation in order to be further integrated into society again. To analyze the respondents' stories about their way into criminality, the theory of social bond by Hirschi has been applied and contribute with insights in later criminal acts as well as the theory has been problematized to some extent. Today, there is a lot of research on different aspects that can explain the way into criminality in different aspects, on the other hand, research has largely been measured with a quantitative approach with statistics and self-reported data. This study therefore intends to apply a qualitative approach, where ex-criminals themselves describe their path into criminality.

Är vittnen som lämnar konsekventa upplysningar mer tillförlitliga?

I den juridiska litteraturen antas det ofta att vittnesuppgifter som är inkonsekventa också är mindre korrekta (Brewer, Potter, Fisher, Bond och Luszcz, 1999). Om det verkligen förhåller sig så har dock inte undersökts empiriskt i någon nämnvärd utsträckning. Tidigare studier har visat på en svag positiv korrelation mellan korrekthet och konsekvens. En reflexion över statistiska samband leder dock till slutsatsen att hittills hittade korrelationer kan vara artefakter, orsakade av hur variablerna definierats. I denna studie undersöktes om det fanns ett samband mellan vittnens grad av korrekthet och deras grad av konsekvens.

Optimering av betong med Byggcement (CEM II) till håldäcksproduktion

This thesis has been developed inassociation with Strängbetong AB, Sweden.A few years backCementa AB introduced a new type of cement on the Swedish market: Byggcement,which is a Portland Limestone Cement. This type of cement is better for theenvironment and cheaper than Rapid Hardening Cement which is used today at SträngbetongAB.Strängbetong AB isvery interested in a change of cement in the factory and wants to know what ittakes to make a transition from Rapid Hardening Cement to Byggcement.This final projectaims at investigating how the workability and strength development are affectedby a transition from the existing cement to Byggcement and how we can change theproperties of the concrete by adding different types of superplasticizers. Laboratory and factoryexperiments were made, to investigate the transition..

Kroppsuppfattning hos värnpliktiga män

Body awareness is a term that refers to a person´s perception and knowledge about his or her body. It includes proportion, size, weight, contour and image of ones body. The Ben- Tovim Walker Body Attitudes Questionnaire (BAQ) contains 44 questions concerning the different aspects of body awareness: Feeling fat, Body disparagement, Strength and fitness, Salience of weight, Attractiveness and Lower body fatness. The purpose of this study was to investigate body awareness among men in military recruit training. BAQ was distributed to fifty recruits for military service in Boden.

Kan probiotika förebygga atopiskt eksem hos högriskbarn?

Sahlgrenska Academy at University of Gothenburg Department of Internal Medicine and Clinical NutritionAbstractTitle: Can probiotics prevent atopic dermatitis in children with high risk?Author: Laura Pienihäkkinen and Max OlinSupervisor: Heléne Bertéus ForslundExaminer: Anna WinkvistProgramme: Dietician study programme, 180/240 ECTSType of paper: Examination paper, 15 hpDate: May 22, 2012Background Allergic disease is today common, this including atopic dermatitis, which is the most common inflammatory skin disease in the world. Heredity has been shown to play a major role in the development of this disease. It is therefore of high interest for both the individual and society to find effective methods for preventing atopic dermatitis in individuals with high risk profile. Probiotics are beneficial for the bacterial profile in the intestine and it is therefore of interest to study if they through their anti-inflammatory effect could prevent atopic dermatitis.Objective The aim was to study whether administration of probiotics to the mother and the child (directly or via breast milk) could prevent atopic dermatitis in children with high risk profile (at least one first degree relative with a diagnosed allergic disease).Search strategy A systematic literature search was done in databases PubMed and Scopus with search terms maternal, prenatal, probiotics, allergy, atopic dermatitis, prevention, and children.Selection criteria Randomized, controlled human studies and original articles in English were included.

Effekten av frukostens glykemiska index på energiintag hos barn och ungdomar

Sahlgrenska Academyat University of GothenburgDepartment of Internal Medicine and Clinical NutritionTitle: The effect of the glycemic index of breakfasts in energy intake inchildren and adolescentsAuthor: Charlotte Olofsson, Cornelia Johansson and Maria NordbeckSupervisor: Fredrik BertzExaminer: Ingrid LarssonProgramme: Dietician study programme, 180/240 ECTSType of paper: Examination paper, 15 hpDate: May 16, 2013Background: The glycemic index (GI) and it´s effect on energy intake is a debated subject.Research has been done whether food with lower GI decreases hunger and lowers energyintake, which could be an effective tool to prevent overweight in children and adolescents.Breakfast eating is successful for maintaining a healthy weight and it´s therefore interesting tosee if the quality of the carbohydrates matters.Objective: To evaluate the scientific evidence regarding the effect of GI of breakfasts inchildren?s and adolescents energy intake.Search strategy: To find relevant articles, a systematic literature search was made in thedatabases PubMed, Scopus and Cochrane. Search terms that were used were: breakfast,breakfast quality, children, glycemic index, energy intake, obesity.Selection criteria: Randomized controlled trials and cohort trials, breakfast eatingindividuals, children and adolescents under 18 years old, reported glycemic index. Outcomemeasurements: Energy intake.Data collection and analysis: Six original articles met the inclusion criteria and werereviewed by the SBU audit template for randomized and controlled studies. There after onearticle was excluded because of very low quality of the study.

Att stanna : En kvalitativ studie om kvinnor med tidigare erfarenheter av våld i nära relationer

Den här studien undersöker kvinnor utsatta för våld i heterosexuella parförhållanden med syftet att undersöka vad som kan påverka att en del kvinnor under lång tid stannar i destruktiva och våldsamma relationer. Den teoretiska referensramen hämtas från ett strukturellt/kulturellt perspektiv i teorin om våldets normaliseringsprocess samt från ett socialpsykologiskt perspektiv genom teorin om det traumatiska bandet. För att uppnå studiens syfte har en kvalitativ metod använts i form av intervjuer. Fem kvinnor med tidigare erfarenhet av våld i nära relationer har intervjuats. Genom en tematisk analysmetod har intervjumaterialet sedan analyserats.

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