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1628 Uppsatser om Rare earth elements - Sida 25 av 109
En studie av landskapsindex för kvantifiering av rumsliga landskapsmönster
Syftet med uppsatsen är att utvärdera två landskapsindex: ett formindex som beräknar formen för varje markanvändningsyta ( eng. "patch"); ett diversitetsindex, som beskriver de olika markanvändningarnas relativa utbredning. Formindexet beräknas på två olika sätt, beroende på om dess storleksberoende inkluderas eller ej. Utvärderingen körs för ett landskap på cirka 50 km2, men även för tre mindre områden i landskapet: åkerbygd, mellanbygd samt skogs-bygd. Samtliga områden jämförs sedan i två olika skalor, flygbild respektive satellitbild..
TV-stativ med nytt ställdon
The purpose of this thesis work is to evaluate how the physical behaviour of a pipe bend is affected by the pipe bending procedure. Effects such as initial ovalization, thinning, thickening and plastic hardening from the bending procedure are examined and the mechanical properties of pipe bends containing these effects are investigated.This has been evaluated by creating a detailed Finite Element model of a pipe that is being bent. Then the differences compared to a bent tube in a virgin state, so called Elbow elements and an analytical in-house program have been evaluated. The virgin state refers to a model of a pipe that is bent from the beginning, thus having a homogeneous thickness and not containing any plastic hardening. The Elbow element is a calculationally cheap element, specially developed for accurate calculations of pipe bends in an initially virgin state.The goal with the thesis work is to get a better picture of what happens to a pipe as it is being bent, how this affects the mechanical properties and to evaluate the possibility to develop an easy method for taking these effects into account when using the Elbow element.This report describes the layout of the work and how the detailed FE-model has been constructed.
Lärobok vs Internet : En studie av elevsvar utifrån olika informationskällor
Syftet med denna studie a?r att undersoka de elevsvar eleverna ger na?r de anva?nder sig av en la?robok i svenska?mnet som informationska?lla eller av internet som informationska?lla. Dessa elevsvar sa?tts i perspektiv genom betygsa?ttning ba?de av oss samt av en extern la?rare. Studiens forskningsansats a?r en kvalitativ och kvantitativ undersokningsmetod med en experimentell tendens.
Bredspridning av grönmassa :
There are a great possibility to shorten the time between mowing and preservation by spreading of ley crops in connection to the conditioning. In this case the cellular respiration (the plants breeding that consume sugar until the crop is ensiled) should not continue as long and the forage will perhaps get a higher nutritional value. The capacity of the next machine could also be higher because the rake gives swaths with a lot of material. There is also a possibility that spreading of ley crops gives the material a more homogeneous content of dry matter and that gives a reduced growth of clostridium. This is particularly important when the method of harvest doesn?t include any mixing of the material like it does with a round baler or silagewagon.
Pekska?rmar i turbulenta miljo?er : I vilken utstra?ckning kan precision uppra?ttha?llas
Pekska?rmar anva?nds i allt sto?rre utstra?ckning som interaktionsteknik fo?r hemelektronik. Tekniken har traditionellt sett inte anva?nts i kra?vande miljo?er, exempelvis i miljo?er da?r skakningar och g-laster fo?rekommer. Introduktionen av pekska?rmsteknologi i cockpitmiljo? fa?r konsekvenser fo?r utformningen av fo?rarmiljo?n vilka bo?r utredas.Denna studie syftade till att empiriskt utva?rdera anva?ndarnas prestation med avseende pa? precision vid olika interaktionsmano?vrar pa? en pekska?rm.
Mode som narrativ : En analys av modets roll i The Picture of Dorian Gray
My aim with this study has been to examine how the fashion is a leading component in the novel The Picture of Dorian Gray.I have studied the role fashion plays in the novel and in which way it can be seen as a way of letting the reader know the important role of fashion in 19tcentury England and the morals of Oscar Wilde.To prove my thesis I have used literature that shows how Oscar Wilde uses influences from his own life in his writing of The Picture of Dorian Gray. I have also used Judith Butler's theory of performativity in analyzing the characters in ordet to display their way of staging themselves and their lifestyles and their dependence of that performativity in their interactions. Even though the theory of performativity often is used to hold the importance of the sexes, I have concluded that it has an important role in the novel when Dorian Gray interacts with the character Sibyl Vane who is an actress. My results have shown that fashion in the novel is often a way of letting the reader know important elements of a character in the way that certain fabrics and items are mentioned when Wilde writes about his characters. I have also found that fashion is an important factor when the characters judge each when they speak about the way they dress.
Elevers upplevelse av st?d och hinder f?r l?rande i grundskolan En intervjustudie om spr?kst?rning p? mellan- och h?gstadiet med fokus p? spr?k-, l?s- och skrivutveckling
Studiens syfte ?r att unders?ka hur n?gra elever med spr?kst?rning i mellan- och h?gstadiet upplever l?rande i relation till spr?k, l?s- och skrivundervisning. Studiens syfte unders?ks genom f?ljande fr?gest?llningar: Vilka m?jligheter och hinder upplever elever med spr?kst?rning i sitt l?rande, kopplat till spr?k- l?s- och skrivundervisning?, Vilket st?d upplever eleverna att de f?r idag och vilket st?d ?nskar de f? i relation till spr?k, l?s- och skrivundervisning?, Hur upplever eleverna delaktighet, sj?lvk?nsla och tilltro till sin egen f?rm?ga i relation till sitt l?rande och till undervisning? F?r att svara p? studiens fr?gor antas en kvalitativ forskningsmetod med semistrukturerade intervjuer som huvudsaklig datainsamlingsmetod. F?r att bearbeta och analysera intervjuerna anv?ndes en kvalitativ inneh?llsanalys.
Konsten att utsmycka en melodi : att la?ra ut ornamentation inom tidig musik
Denna uppsats underso?ker pa? vilka sa?tt fyra professionella blockflo?jtister la?rde sig att ornamentera inom tidig musik. Fokus ligger pa? deras utbildningsva?g fo?re ho?gskolestudier. Det underso?ks vilka olika metoder deras la?rare anva?nder sig av och pa? vilka sa?tt ka?llstudier fra?n 1500- till 1700-talet spelar en roll inom ramen fo?r deras undervisning..
Till för medmänniskan Om medmänsklighet utifrån Martin Buber och Gustaf Wingren
This is a study of humanity about the meetings we have with one another. I write about this subject out of the perspective of Martin Buber and Gustaf Wingren. As I enter this area and begin the writing a few questions are being developed, such as:? Why do we as humans have the need to meet each other?? ?What happens with us when the meeting is absent?? ?What does it mean to love your fellow man or woman?? ?What helps or destroys our possibilities to meet each other?? Buber talks about Me and You and the aim of the meeting we have with each other. When we meet each other it generates a responsibility against each other.
Miljöinformation från teori till praktik.
The purpose of this paper is to investigate the process of transferring information from science to "the field" of environmental protection in Sweden. I have studied four Swedish environmental organizations, Greenpeace Nordic, WWF Sweden, the Swedish Society for Nature Conservation and Friends of the Earth Sweden to see how they search/get information. I have also studied the Swedish Environmental Protection Agency and its role as sender of information, since it is the authority which is responsible for environmental information in Sweden. I have used information and communication theories as a help to analyse my results. While working on this paper I realized that my methods were not the best.
Varning! Effekter av varningar i printreklam.: Effekter av varningar i printreklam
The purpose of warning labels used by governments is to decrease consumption. In Sweden, the mandatory warning labels are designed according to statutory guidelines, and not according to research on attention-grabbing graphic elements. This results in a belief that the attention toward the warning labels is poor. An extensive experiment underlies this study, which has the purpose of providing insights to the effects that warnings, warning design, and warning content has on attention, attitudes and behavior in print ads. The study shows that, even though the standard design and content has lost much of its potential to communicate the warning, it gains more attention compared to a warning label with new design and content.
Vinkelfelet i mätkretsens påverkan på riktade jordfelsskydd
Utfört examensarbete undersöker vinkelfelet i mätkretsen för riktade jordfelsskydd och hur det påverkar dess felbortkoppling. Uppkomna vinkelfel i mätkretsen kan påverka det riktade jordfelsskyddet så att verklig felström och uppmätt felström inte stämmer överens, vilket kan leda till uteblivna eller obefogade felbortkopplingar. Vattenfall ställer krav på att vinkelfelet får uppgå till max ±2 grader för mätkretsen. Eftersom vinkelfelet i många fall har en hög påverkan på jordfelsskyddets noggrannhet undersöks vad Vattenfalls vinkelkrav egentligen innebär. Största orsaken till vinkelfelet uppstår oftast i strömtransformatorn och därför undersöks hur mycket två strömtransformatorer med olika klassificeringar som är vanliga i elnätet påverkar vinkelfelet i mätkretsen.Jordfel är det vanligast uppkomna felet i mellanspänningsnät och dess storlek beror till stor del på hur mycket kapacitivt bidrag som finns på linjerna samt värdet på nollpunktsresistorn.
Borgarklassens diskreta stil : Smak och samhällsklass i heminredningstidskriften "Sköna Hem"
Within media and communications studies, questions of taste have often been associated with the dichotomy of high versus popular culture. The French sociologist Pierre Bourdieu has also used mass media products in his studies of class determined tastes and dispositions. In this paper the author uses the theoretical framwork of Bourdieu to examine aspects of social class and legitimate taste in the interior design magazine "Sköna Hem", a market leading magazine within it's genre of lifestyle magazines in Sweden. A specific type of feature article, where a real-life home is portrayed, is studied using the critical discourse analysis of Norman Fairclough. The homes portrayed are predominantly affluent and display elements of conspicuous consumtion as mediated through legitimate taste and cultural capital.
Camping : Vad, Vem & Varför!
What on earth do people see in camping? Why do they choose this compact living in their holiday? All that people in caravans who are put together in a camp site.The purpose of my study was to find out who and wy. My ethnographic study in a camp site with participation observations, interviews and analysis have results in facts that show why.The most common camper is the house owner with average income. And the choice of the camp site depend on the security and the service that the camp site offered. The camp site was controlled and the campers controlled each other.
En ny teoris framväxt : en studie om teoriutvecklingen inom barndomssociologin
This essay aims to examine how theories within childhood sociology have evolved. The main questions are: Who are the central scientists within the field, what are their objects of study and who are the intended recipients of their work? How can the origin of the theories be described? Which elements are central in the theories and have they changed over time? How can the theories be evaluated based on criteria of valid theories?The study was based on a qualitative literature review. Six scientists' publications were examined, ranging from the time of the theories establishment to present time. In the analysis hermeneutics and theories of scientific development were used to seek explanations.The main results show that the central elements in the theories describe childhood as a social phenomenon and a structural category.