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1628 Uppsatser om Rare earth elements - Sida 19 av 109
Med hunden i fokus - en metod att identifiera hundars användningsområde utifrån det postkraniala skelettet
AbstractThis is a study of present day dogs with the purpose to establish a method to investigate archaeological dogs and determine their use in the past. The study has focused on measurements of five bone elements, scapula, humerus, radius, ulna and femur. A principal component analysis has been applied in order to decide which measurements to be further used in the analysis. Different proportions have been calculated on these measurements.A test to try the method has also been done on bones of a wolf and a dog without known background. The results from the different elements are positive, and they narrow the field down to two dog types of which one is more likely to be true than the other.The final results show that, although over lapses between the four different dog groups; hunting dogs, guard/work dogs, sled dogs and shepherd's dogs exists, it is possible to distinguish different dog usage from the proportions of the bones..
Islam och Demokrati : Två olika idè och tanketraditioner?
The purpose of this paper is to study the subject Islam and Democracy and see whatcommonalities exist between the two ideas and traditions of thoughts. The subject is topicaland often highlighted by the media in the West. The Islamic voices that we hear today iscertainly not democratic, given the violence and hatred carried out by Islamic extremistsagainst the West. The investigation of this paper have shown a different direction when thereare other voices such as those investigated reformist thinkers who argue that Islam has manydemocratic elements, and even that Islam is more suitable than democracy. According to thereformists ismodel of an Islamic state is democratic and legitimate.
Utvärdering av mikrofon- och högtalarelement för högtalartelefonsapplikation
The project deals with the evaluation and testing of speaker and microphone elements as well as microphone cavity.The first part of the report comprises a comprehensive theoretical part about drivers, microphone elements, and to some extent microphone cavity.The goal was to , on the behalf of the company Limes Audio AB, develop proposals on microphone element and cavity as well as drivers for a speakerphone application, based on specific factors. The main factors were performance, price and form factor.The aim was to create the best possible conditions for Limes Audio's software developers to implement the company's audio-enhancing software, mainly adaptive echo cancellation.The testing was carried out using Adobe Audition and MatLab. The test methods were developed in conjunction with Limes Audio and are described below.The project will result in suggestions for a speaker, a microphone and a cavity. The cavity were removed from the product because the results indicated that the cavity matter little for the end result.The report concludes with a discussion on how the measurements could have been enhanced to simplify the interpretation of the results and making the testing more efficient..
Numerisk simulering av jordtryck mot rörbro ? Med tillämpning av programmet PLAXIS
This thesis deals with numerical simulation of earth pressure against tubular bridges in the software Plaxis. Plaxis is a FEM (Finite Element Method) software based on numerical calculations for which approximate solutions are developed through an iterative process. The program is specifically designed for soil and rock mechanical tests, such as voltage and deformation calculations in soil.The Royal Institute of Technology conducted in 2005, field tests on tubular bridges of corrugated steel, which was part of Ersa Bayoglu Fleners PhD (Bayoglu Flener, 2009). She studied how two different tubular bridges deformed during installation and filling. Tests and measurements were made during filling.
Informell formativ bedömning i matematikundervisningen
Informell formativ bedo?mning a?r inte bedo?mning som tenderar att dokumenteras och sammanfattas till ett betyg, utan den bedo?mning som via dialoger i klassrummet hja?lper la?raren att avgo?ra vad eleverna kan eller om de ha?nger med i det la?raren fo?rso?ker fo?rmedla. Fo?r att bedo?mningen sedan skall vara formativ kra?vs det att informationen som la?raren fa?r fram vid dessa dialoger anva?nds som grund i fortsatt undervisning. Syftet med den ha?r studien a?r att fo?rdjupa kunskapen om informell formativ bedo?mning inom matema- tik pa? gymnasieskolan.
Att sanktionera eller inte sanktionera : En intervjustudie om nyexaminerade la?rares fo?resta?llningar om vilka faktorer som pa?verkar deras sanktionsuto?vning
Denna studie har haft syftet att underso?ka vilka fo?resta?llningar nyexaminerade la?rare har vad ga?ller sanktioner i klassrummet och vad som pa?verkar dem i uto?vandet av sanktioner. Fra?gesta?llningarna ringar in vilka beteenden som anses oacceptabla, vilka sanktioner som la?rarna anva?nder sig av samt vad som pa?verkar la?rarna i sanktionsuto?vningen.Studien har sta?tt pa? en behavioristisk grund. Fra?mst ga?llde detta centrala begrepp, vilka var viktiga fo?r att analysera resultaten.
Folkbiblioteken och informationsuppgiften: Fyra biblioteksorganisationers syn på folkbibliotek, folkbibliotekens bestånd samt deras roll i samhället.
The purpose of this paper is to examine different attitudes regarding freedom of information and how libraries should fulfil their information-task represented by four organisations. The organisations are important in shaping the Swedish public libraries in different ways. The purpose is to examine in what ways their definition of information freedom may differ from one another and what that means in defining the public library. For the survey the qualitative textual analysis has been used for examining the documents and websites that are part of the debate about the public library and information freedom. We chose to interview representatives of four organisations that in different ways influence the shaping of the public library.
Psykisk oh?lsa inom f?rskolan Det kommer v?l senare i livet? En kvalitativ studie om f?rskoll?rares och specialpedagogers uppfattningar och erfarenheter av begreppet psykisk oh?lsa samt deras f?rebyggande arbete i f?rskolan.
Utifr?n den kvalitativa metoden behandlar studien f?rskoll?rares och specialpedagogers olika
uppfattningar samt erfarenheter av psykisk oh?lsa inom f?rskoleverksamheten. Fem f?rskoll?rare och tre specialpedagoger har intervjuats. Fr?gor som hur de enskilda professionerna uppfattar och identifierar psykisk oh?lsa bland barn mellan ett och fem ?r ?r centrala f?r studien
tillsammans med hur ett f?rebyggande och h?lsofr?mjande arbete praktiseras inom f?rskolan.
Den specialpedagogiska teorin samt det salutogena perspektivet har varit betydelsefullt f?r studien d? resultatet har tolkats utifr?n dessa.
Realisering av de svenska vokalfonemen hos andraspr?ksinl?rare med hindi och engelska som basspr?k. En studie i m?lspr?ksavvikande uttal r?rande vokalkvalitet, vokalinskott och vokalbortfall
Syftet med denna uppsats ?r att kartl?gga m?lspr?ksavvikande uttal hos andraspr?ksinl?rare med hindi och engelska som basspr?k med avseende p? vokalljud i svenska, som ?r m?lspr?ket i denna uppsats. De m?lspr?ksavvikande uttal som beaktas ber?r vokalkvalitet, vokalinskott och vokalbortfall. Forskningsfr?gorna som st?lls ?r vilka m?lspr?ksavvikande uttal som f?rekommer, och varf?r m?lspr?ksavvikande uttal f?rekommer.
Concentration and offtake of trace elements and macronutrients in Italian ryegrass (Lolium multiflorum Lam.) and spring barley (Hordeum vulgare L.) grown on soils amended with water treatment residual sludge
Aluminium sulphate (Al2(SO4)3) is usually added during the drinking water treatment processin order to precipitate organic and inorganic material, resulting in aluminium-based drinkingwater treatment residual sludge (WTR). Since 2003 Swedish law no longer permits WTR tobe deposited in lakes, and there is an interest to explore the possibility to utilize WTR as soilamendment. The aim of this study was to examine the effects of WTR application on cropgrowth and concentrations of macronutrients and trace elements (including micronutrients andpotential toxic elements). A greenhouse pot experiment was conducted with three soils; a clayloam rich in phosphorous (P), a loamy sand rich in P, and a silty loam with a low soil Pconcentration, and two crop species Italian ryegrass (Lolium multiflorum Lam. cv.
Att mäta organisationsförändring : En studie om att mäta formella och informella element vid en organisationsförändring i offentlig sektor
Syftet med uppsatsen är att ta reda på hur en organisationsförändring kan mätas med avseende på formella och informella element samt att presentera hur mätprocessen kan genomföras. Studien bygger på intervjuer och dokumenterade utvärderingar. Studien visar att de formella elementen mäts genom att kontrollera att målen som satts upp inför förändringen är uppfyllda. De informella elementen mäts genom medarbetarundersökningar dock utan någon koppling till förändringen som har genomförts. När de informella elementen mäts i en förändringsprocess görs detta genom så kallade attitydmätningar.
Analys av molnklotter inom det termala infraröda våglängdsområdet med IRST-data
Detta arbete har utförts tillsammans med FOA 3 i Linköping som en undersökning av molntextur och molnklotter i flygbilder som registrerar värmestrålning. I dessa sammanhang betyder klotter en slags spräcklighet i bilden, eller att det inte går att se några mönster och strukturer i den..
Döm mig inte! : Upplevelser av sångsvårigheter och dess orsaker
Syftet med denna uppsats a?r att underso?ka sa?ngsvagas upplevelse av sin sa?ngro?st samt att ta del av deras beskrivningar om varfo?r de anser sig ha sa?ngsva?righeter. Tidigare forskning visar att sa?ng a?r viktigt fo?r barns sociala och kommunikativa utveckling, men ocksa? att en trygg och positiv undervisningssituation kra?vs fo?r att elever ska kunna utveckla sin sa?ngfo?rma?ga. Om undervisningssituationen blir det motsatta kan det ge ha?mmningar fo?r livet na?r det ga?ller elevens lust till sa?ng eller musik.Den ha?r underso?kningen har avgra?nsats till att na?ra studera fyra ma?nniskors upplevelser av sin sa?ngutveckling och sina sa?ngsva?righeter.
Nedskrivningsprövning av goodwill : Tillvägagångssätt och problematik
Graphic profiles are a part of companies? brand expressions. The graphical values reflect the brand values the business wants to convey. They consist of different graphic elements such as logo, company sign, colour schemes, templates, rules, fonts, pictograms, formats and references to how different graphic elements should look, for example, business cards, signs and materials for websites. This thesis aims to examine why firms choose to replace their graphic profiles by studying their underlying motivations.
Hisskärna av skalväggar i höga byggnader : Ett alternativ till den platsgjutna kärnan
A common way to stabilize high rise buildings is to use an elevator core built of concrete. Today, we use to build these elevator cores of in-situ concrete. Precast concrete twin wall (double wall) is a semi-finished product that has become more common in recent years. This diploma work studies how the twin wall works out as structural elements in an elevator core. The work also shows some possible ways of designing twin walls and highlights some important parts of the design that will be vital to the stability of the building. The result shows that it is important to think through where the element joints should be placed.