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1814 Uppsatser om Plant selection - Sida 54 av 121

Konstruktion av solcellsstativ i obehandlat naturmaterial

I detta examensarbete utvecklas ett solcellsstativ i trämaterial. Ett idékoncept fanns somgrund för hur stativet skulle kunna utformas. Detta har vidareutvecklats, till färdigt systemanpassat för tillverkning.Resultatet blev ett fackverksstativ i trä bestående av vinklade halva oktaeder i rad.Trädetaljerna binds samman med knutpunkter i formsprutad plast, som med klämkraft hållerfast trädetaljerna. Knutpunkterna är konstruerade för att minimera åverkan på träet samtmotverka röta.Systemet är verifierat både genom beräkning, simulering och jämförelse med liknandekonstruktioner. Materilavalet är gjort med systematik enligt Ashby, Material Selection inMechanical Design.

?Vad gjorde kvinnorna när männen skrev historia?? : En analys av gymnasieskolans läroböcker i historia

During our teacher training, focusing on history and Swedish at further education level, we have noticed a discrepancy in the way history is portrayed in further education and higher education literature. Accounts of historical ideas, events and developments have often wrongly been depicted as non-gender specific, that is, of equal relevance to both men and women. To what extent is it made clear in further education textbooks that Rousseau?s treatise on education was exclusively aimed at the male gender, and how are the gender-specific aspects of his ideas described? What role and space are set aside for women in the accounts of the struggle for the universal right to vote in Sweden at the turn of the century in 1900, and how is the unions? initial exclusion of female workers portrayed? Focusing on the above historical events and developments, this study aimes to examine whether or not gender-specific issues are described as gender neutral in a selection of history textbooks for further education published in Sweden between 1982 and 2003..

Menstruationscykelns inverkan på kvinnors preferenser för mäns ansikten

Menstruationscykelns inverkan på kvinnors preferenser för mäns ansiktenSammanfattningDetta är en systematisk replikation av Penton-Voaks och Perrets studie (1999) då en preferens hos kvinnor för maskuliniserade ansiktsdrag under hög befruktningsrisk i menstruationscykeln hittades. Dessa drag tros vara en ärlig signal för goda gener och immunokompetens hos män. Oklarhet råder huruvida detta gäller för olika populationer. 36 svenska universitetsstuderande kvinnor fick därför välja ut de mest fysiskt attraktiva ansiktena, utifrån maskuliniserade och feminiserade bildserier, vid hög respektive låg befruktningsrisk. Ingen signifikant skillnad hittades mellan de olika faserna.

URLen som förbindelselänk: en utvärdering av URLers pålitlighet som åtkomstmetod mellan webbresurs och bibliografisk post i LIBRIS och NetSök

The aim of this masters thesis is to study the reliability of the URL as the link between a bibliographic record and a web resource. The Swedish catalogue services LIBRIS and NetSök have been evaluated on three different occasions, to study how these services have succeeded in giving access to web resources by using URLs. Because URLs are changeable, we have tried to find out common characteristics of the URLs in broken links. To accomplish this study we have used a quantitative approach and evaluated five percent of the web resources in the catalogues using a random selection. We have also used documentation relevant for our study, among other things to illustrate previous studies of the nature of web resources and alternative solutions to URLs as access points to web resources.

Försäljningsomkostnader

Bakgrund: Det har visat sig att det i många fall kan vara svårt att jämföra kalkylinformation mellan likartade enheter trots att dessa använder sig av samma kalkyleringsmetoder, särskilt om enheterna i fråga är geografiskt placerade i regioner med olika kalkyleringstraditioner. Det är därför av intresse att undersöka hur kalkylinformationen kan skilja sig åt i dessa fall. Syfte: Syftet är att analysera försäljningsomkostnader med hänseende på deras urval och värdering i kalkyler. Genomförande: Vi har genomfört en casestudie med intervjuer med tre enhetschefer i den svenska divisionen samt med tre engelska chefer för motsvarande enheter i den brittiska divisionen inom en och samma globala koncern. Resultat: Vi finner i vår studie att kalkyltraditioner spelar en stor roll för vad kalkylinformationen visar, men att det även förekommer stora skillnader mellan enheter som har samma kalkyltradition.

Ett förslag till arbetsmöbel för användning i det offentliga rummet. : -examensarbete i samarbete med Nola AB

During spring 2007, I Matilda Lindblom, undertook my Bachelor Degree project in Furniture Design. The supervisors were Agneta Stake at Nola in Stockholm and Leo Jóhannsson, teacher and examiner at Carl Malmsten CTD in Stockholm.The project was based on three elements:? Cooperate together with a producer for professional supervision? Learn to work from a given design brief.? To learn more about industrial production? Learn more about furniture for public areasI contacted a furniture producer called Nola AB, in Stockholm, who became my work partner during this project. The asked me to design a piece of furniture where you can sit and work with a laptop on. The target was for public areas, for example in parks, malls, or at airports.In cooperation with Nola, my ambition was to develop this piece of furniture that was the answers on their wishes and demands.

Konstruktion av en autonom vindstation

Construction of an autonomous wind station was a project with the goal of creating a product that could collect wind data from a sensor and then transfer this data to a server wirelessly over the GSM network. The device would be powered by batteries and solar cells and function fully without requiring external power supply. This required that a small computer was constructed and programmed to store and send data at predetermined cycle times and programming of a server that received the sent data. The project also required optimization of power consumption and dimensioning of solar cells and batteries based on this. The construction of this station demanded research both for the selection of hardware and programming software. The computer was based on a microcontroller and a GSM module that sent the data over the 2G network.

Människors val av lightprodukter och originalprodukter

The essay aimed to investigate whether people choose light products or original products regarding dairy products and beverages as well as the motives for their respective choice. Finally the purpose was to find out where they had obtained the knowledge to make their choice and how they thought media had affected their choice. The method used was a qualitative decsriptive study with three focus groups consisting of six women aged 40-50, six women aged 20-30 and four men aged 25-35. Each interview lasted 2 hours. The groups were a selection of comfort.   The results showed that all respondents choose original products. The primary reason was because they thought that original products tasted better and had a better consistence.

Reservoarer och källor för Staphylococcus aureus i mjölkkobesättningar

Kalvningssvårigheter och dödföddhet är problem som finns hos svenska mjölkkor och som ökat under de senaste åren, speciellt bland förstagångskalvare. Problemen försämrar kornas välfärd och kostar pengar för bonden. Flera studier har gjorts för att kartlägga så kallade quantitative trait loci (QTL) kopplade till kalvningsegenskaper och många kromosomregioner har hittats som kan innehålla gener som påverkar dessa egenskaper. En viss oenighet finns i resultaten från studierna, men flera studier har hittat QTL kopplat till kalvningsegenskaper på kromosom 4, 6, 7, 10 och 18. Sverige har inkluderat kalvningssvårigheter i det traditionella avelsprogrammet sedan 1995 men inga större genetiska framsteg har gjorts.

Vägen till en levande lanthandel

AbstractA general store is a grocery store that is located in the countryside. In today's modern society, it is difficult for general stores to compete with the supermarkets and discounters in terms of price and supply. The purpose of this thesis is to create an understanding of both the rural merchants and its customers? perspective on a well-­?functioning general store. We have conducted a case study of three general stores where we interviewed the merchants about how they do to please their customers? needs and identify key elements of a well-­?functioning general store.

Centrala logistiska faktorer i en förädlingskedja för massproduktion av träpellets : Fallstudie på Kopparfors Pelletsfabrik

This examination work aims to describe how a supply chain around the biggest pellets factory in Sweden will be configured in a logistic perspective. The plant and associated infrastructure are in the building phase and will have production start on the 2 November 2009. The key question that is set in this examination work is to recognize the logistic processes which are essential for an effective flow of materials and information that link the source of supply with the ultimate customer. In order to get the answer, a flowcharting of these supply chain processes is required for understanding the pipeline activities such as input and storage of raw material, the production system and the output of pellets to the customers. The basis for this supply chain map is a model-based representation of these logistic processes and activities that are involved around the pellets factory.

Vintervegetation genom ljus : om hur man med belysning kan framhäva avlövad vegetation i offentlig stadsmiljö

Use of lighting is crucial to make public urban places available during dark hours. Landscape architects participate in planning of lighting, but during our education there is very little taught on the subject. Through this study we approach the subject of lighting by looking into lighting methods for urban plant materials during winter. In this thesis we look into ways to emphasize the visible characters and experiences of urban plants during winter season using light. Target audience are landscape architect students and landscape architects without knowledge of lighting. The part of the thesis that describe basic conditions for, and visual characters of plants can be useful to lighting designers without knowledge in this subject. Working methods used were the following: ? Pre-study about light and lighting techniques through literature and dialogues. ? Compiling important visual winter plant characters through photography and literature. ? Outdoor light experiments with plants.

Obtaining high quality textile fibre from industrial hemp through organic cultivation

AbstractThe urgency to find alternative fabrics to conventionally produced cotton is increasing as vast amounts of agrochemicals are used and a lot of irrigation is required. In this literature survey the potential of organic cultivation practices to produce highly qualitative hemp fibre, suitable for the textile industry, was investigated. The definition of a fibre in the textile context as well as of the qualities that are essential for a textile fibre was necessary as a base for the discussion in this thesis. The quality parameters looked at were fineness, strength, length, friction, and colour. The impact of external growth factors and plant development on these quality properties are discussed.

Förekomsten av den genetiska varianten laktapersistens hos neolitiska grupper från Öland : The contribution of the genetic variant Lactase persistence among Neolithic people from the Baltic island Öland in Sweden

This study deals with the contribution of the genetic variant lactase persistence among Neolithic people from the Baltic Island Öland. Skeletal remains from twelve individuals went through DNA sequencing in order to find the mutation that allows adult individuals to digest milk sugar. The twelve individuals were chosen from two different Neolithic sites, where the archaeological and isotopic data suggest that the individuals from Köpingsvik were hunters and gatherers and the individuals from Resmo were early farmers. The individuals with the genetic variant lactase persistence can be described with selection and genetic flow.  Only five individuals produced results and the mutation was found in two of the subjects. All the individuals who were successfully sequenced came from Resmo, whereasno individuals from Köpingsvik yielded any results.

Hur kan måltiders klimatpåverkan minska? : Hinder och mo?jligheter fo?r va?xtbaserad kost vid offentliga matserveringar.

Människans utsläpp av miljö och klimatpåverkande växthusgaser har ökat i snabb takt de senaste hundra åren. Fler varor produceras, konsumeras och transporteras över hela jorden för att uppfylla de krav människor har på sin levnadsstandard. Livsmedelsindustrins roll i utsläppen är betydande, speciellt köttproduktionen, som står för 18 procent av världens totala växthusgasutsläpp. Genom att minska den mängd kött som ingår i människors måltider och gå mot att äta mer växtbaserat, som inte innehåller köttprodukter, kan matens miljöpåverkan minska. Ett viktigt område är offentliga matserveringar, vad som serveras där har en inverkan på människors matvanor och deras syn på mat.

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