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894 Uppsatser om Mechanical properties - Sida 50 av 60

Bäddodling av matpotatis :

This study investigated potato growing in beds as an alternative to conventional ridges.It was based on results from field trials on bed-grown potatoes carried out by Halland Rural Economy and Agricultural Society in 2007, studies of literature and interviews with farmers with experience of bed growing of potatoes. Due to their shallow root system, potatoes are one of the most drought-sensitive crops. Potatoes are often grown on sandy soils with poor water-holding capacity. Factors such as total yield, tuber size distribution and quality defects are negatively affected when water becomes insufficient. Wide beds have a more flat top which leads to more uniform water infiltration. Further on, beds have lower soil surface area due to its shape, and therefore, retain water more efficient. In the field trials, which were carried out at the Stjärnarp Estate near Halmstad, potatoes were grown in beds alongside a conventional ridge-grown crop.

Provtagning av trädkärnor för att bedöma föroreningsgraden av klorerade lösningsmedel i grundvatten

Chlorinated aliphatic hydrocarbons (CAH´s) were used widely within dry cleaning facilities and for metal degreasing until their toxicity was discovered. PCE is still used as dry cleaning liquid. Today CAH´s are found in soil environment at places where they have been used in the past. The CAH-concentration in trees growing on contaminated land has quite recently received attention as a cheap and effective way of assessing the extent of a CAH-contamination. The method has however, not been put into use in Sweden.The aim of the study has been to investigate whether the CAH-concentration in tree cores could be used to delineate the spread of CAH in a soil environment under Swedish conditions in different seasons.

Interaktiv arbetsbeskrivning

Under framtagandet av nya produkter måste ett antal prototyper tillverkas för att verifiera konstruktionen. För en metodingenjör som tar fram reparationsmetoder innebär prototyptillverkning att tankar som växt fram under utvecklingsfasen kan provas för första gången på en fysisk produkt. Detta sker relativt sent i produktutvecklingen och eventuella ändringar som kan uppstå på grund av att servicevänlighet inte uppnås blir mycket kostsamma. Om däremot prototypen där metoderna verifieras för första gången är digital och detta sker tidigt blir kostnaderna för eventuella ändringar avsevärt mycket mindre. Modellen som ligger till grund för metodstudierna kan sedan används för att skapa ett utkast till service litteratur, detta medför att även den delen av slutprodukten kommer att vara i fas med övriga utvecklings avdelningar. Under detta projekt har en digital prototyp av en Scania motor använts för genomförandet av metodstudier.

Textil halksula

De senaste årens långa och kalla vintrar har lett till ett ökat antal halkolyckor. Genom att undersöka halkolyckors utsträckning samt halkskydd som fanns tillgängliga konstaterades det att ett behov av nya halkskydd fanns. Enkäter för att ge svar på användning av halkskydd togs fram och svar från personer i åldrarna 20-65 visade att man överlag inte använde halkskydd. I stor utsträckning berodde det på halkskyddens dåliga kvalité och den negativa stämpeln som fanns på dem . Textila material undersöktes för att finna lämpliga egenskaper.

?Killar skriver inte puttinuttigt? : En experimentell studie av genusföreställningar i textbedömningar

This thesis examines conceptions of gender revealed by people when assessing texts. The research questions are: What associations can be discerned between gender conceptions and ideas about the quality of texts? What features of content and style are perceived as female or male? The study seeks to develop a method for comparing different people?s assessments of the same text. The material was collected by means of questionnaires in which 114 informants were asked to assess three anonymous student texts and then guess the sex of the writer. The material has been analysed quantitatively by correlating the assessments of the texts with the guesses about the sex of the author, and qualitatively, as the informants? freely worded assessments of the texts were analysed for content and form with the support of assumptions about how assessments are expressed in text.

Integration av PLM och CAD i komplex produktutveckling : En utredning av Scanias framtida systemmiljö för produktdatahantering

In today's producing companies, there is a high demand on early integrated productdevelopment. One way to facilitate communication between departments and collaborationbetween people and thereby enable early sharing of product information within the companyis to use PLM, Product Lifecycle Management.The CAD environment at Scania is at the moment being upgraded from Catia v4 to Catiav5. In this stage it is important that also the interacting computer systems in Scania?s PLMenvironment are adjusted and in the future join the development. Scania has an idea of howthese systems will be developed as the transition from Catia v4 to Catia v5 is being carriedout.

Berättelsens labyrinter : Interaktiv fiktion och dess narrativa aspekter

This essay examines the narrative aspect of interactive fiction. The study uses Janet H. Murrays analysis of the digital environment and the properties of it as procedural, participatory, spatial and encyclopedic. From this, her three characteristic pleasures in digital narratives - immersion, agency and transformation - are examined from the perspective of interactive fiction. The study also examines Nick Montforts analysis of interactive fiction as a potential narrative and a simulated world or environment.

Hälsofrämjande egenskaper av djurassisterad omvårdnad : En litteraturöversikt

Background: Animals are used in several health care areas and have been shown to promote many aspects of patients? health. Animals have potential for use in nurses? health promotion work. Nurses need a deeper understanding of the importance and health-promoting properties of animal-assisted therapy.Aim: The aim was to describe the importance of animal assisted therapy for patients? health.Methods: A literature review was conducted based on ten nursing science studies with both qualitative and quantitative approaches, which were selected after critical review.

Wavelettransform med Morletwavelets för analys av satellitmätdata

This thesis is divided into two parts. Part one contains a general description of the flexographic printingtechnique. Part two contains a more detailed investigation in the areas substrate, inktransfer and trends, which are only briefly commented in part one, and conclusions and comments.The major problem concerning substrate is washboard. This phenomena can be limited if one can control and minimize the amount of glue applied in the single- and double facer, use high surface weight on liner, use low surfaceweight on fluting and control the humidity during the conditioning of the corrugated board. Corrugated board with a smooth surface radically increases the quality in print.

Magnetfältssignaturer från Birkelands- och jonosfärsströmmar

This thesis is divided into two parts. Part one contains a general description of the flexographic printingtechnique. Part two contains a more detailed investigation in the areas substrate, inktransfer and trends, which are only briefly commented in part one, and conclusions and comments.The major problem concerning substrate is washboard. This phenomena can be limited if one can control and minimize the amount of glue applied in the single- and double facer, use high surface weight on liner, use low surfaceweight on fluting and control the humidity during the conditioning of the corrugated board. Corrugated board with a smooth surface radically increases the quality in print.

Kan företag kontrollera sitt varumärke online? : En kvalitativ studie om villkoren fo?r marknadskommunikation i sociala medier 

Purpose: This study aims to investigate the conditions that prevail when companies put their marketing in social media with the purpose of creating a perception of the risks and opportunities it brings to businesses and ultimately how it may affect the corporate image and identity.Theories: The basis of the problem area are presented through a theoretical framework with the purpose of highlighting the notions of social media, communi- cation, marketing communication, groundswell, corporate identity and image.Methodology: To investigate the research questions this study adopted a qualitative approach in which the authors study the properties of a phenomenon in order to seek a deeper understanding of the problems we have presented. There is an exploratory approach to knowledge and the authors have chosen to conduct qualitative research interviews based upon three themes: driving forces, challenges and impacts.Conclusion: The study revealed that traditional models of communication are no longer applicable in social media. Companies are up for a challenge and must clarify their sole purpose when establishing communication in the social landscape. The general motivation for marketing in social media is making profit, however, building relationships is not a natural motive for most companies. The risks companies expe- rience is the exposure caused by social media and the study also reveals that this fear is firmly attached to their lack of knowledge of these new channels of communicat- ion and their primary areas of use which indicates that skilled employees plays a vi- tal role with their use of social media in their communication process.

Mervärde ur ett konsumentperspektiv : Vilka faktorer är viktiga för att skapa mervärde till tekniska konsumentprodukter?

World wide globalization and the rapid development of the Internet have lead to significant changes for companies around the world. The world has ?shrunk? and increased supply of goods and services has lead to a more intense competitive situation. As the market changes, so does consumer behavior. Today?s consumers do no longer wish to be treated as a group, rather they are looking for products and services that specifically fit their personal values.Recent years, the consumption of digital consumer electronics has sky-rocketed.

Mekanisk sårrengöringsapparatur för vården : En studie i sköljningsoptimering

?Mechanical debridment ? A studie in irrigation optimization? is a final thesis which was executed by Fredrick Ekman, in close collaboration with the other group member Mikael Johansson, during the spring 2012. The thesis was carried out through Karlstad University Faculty of Technology and Science in the study program of Innovation and Design Engineering (180 ECTS credits). The client of the project was Medilink AB located in Lindesberg, and the contact person was Nils-Erik Söderström, Chief Executive Officer. The project was supervised by lecturer, Lennart Wihk, and examined by lecturer and professor Fredrik Thuvander at Karlstad University.

Modell för beräkning av inläckning till avloppsnät

This thesis is divided into two parts. Part one contains a general description of the flexographic printingtechnique. Part two contains a more detailed investigation in the areas substrate, inktransfer and trends, which are only briefly commented in part one, and conclusions and comments.The major problem concerning substrate is washboard. This phenomena can be limited if one can control and minimize the amount of glue applied in the single- and double facer, use high surface weight on liner, use low surfaceweight on fluting and control the humidity during the conditioning of the corrugated board. Corrugated board with a smooth surface radically increases the quality in print.

Att säkerställa rätten att nyttja utrymme/anläggning i annans fasta egendom - exemplet Trafikverket

A property is owned with ownership which in turn may be granted limited rights to acquire the use of land or space in another's property. Tenancies and easements are the most common limited rights. Trafikverket has a range of different rights that are linked to its properties. There are rights that work in favour of Trafikverket?s property as well as against them.

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