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11987 Uppsatser om Material improvement, - Sida 64 av 800
Modellbaserad drivlinereglering
A cars powertrain consists of everything that is needed for its propulsion. The components in the driveline that transfer the power from the engine to the driven wheels are not absolutely stiff, hence they will wind up due to the torque and act as torsion springs. If you suddenly demand a bigger torque by stepping on the accelerator pedal, a so called tip in manoeuvre, and that torque is acquired from the engine as quickly as possible, the driveline will not be able to transfer that fast torque change due to its weakness and as a result it will start to oscillate. These oscillations will be transferred to the driven wheels and make the car to accelerate jerkily which will be experienced as uncomfortable by the passengers. Furthermore, there is a backlash in the driveline that will make the weakness in the driveline even more excited than it should have been if the backlash did not existed.To avoid too big problems with these oscillations there is a control system that controls the demanded torque.
Studie av en medeltida husgrund : en analys av bronsfynd från husgrund 6, Västergarn, Gotland
This essay is an analysis of the objects made of bronze found in an excavation Västergarn parish, Gotland, in 2010, conducted by the University of Gotland. The studied material presented in this essay comes from contexts inside, as well as nearby the foundation of a medieval building which purpose is still not certain. The first purpose of this study is to present the bronze-objects found inside and nearby the foundation of house 6, and to see if there are any datable objects. There is also a discussion whether there has been any bronze-crafting in the area. The second purpose is to make a contextual analysis to see if there are any differences between the material found outside and inside of the building, and what conclusions can be made regarding the function and use of the building.
Den interaktiva tavlan : som ett medierande redskap för lärande
The interactive whiteboard (IWB) is to be found in many classrooms in Sweden, and its number is growing rapidly. There is a lack of research of the use of the IWB in Sweden. The Swedish National Agency for Education refers to English research where the investment in the IWB in school is huge. In this study I will investigate how the IWB can be used as a mediating tool in the learning process. My study examines how interaction pattern appears when the teacher teaches with the IWB as a tool.
Bland Bokbaciller och Vingklippta Änglar ? En kvalitativ studie kring bestånd och beståndsarbete på fem sjukhusbiblioteks barn- och ungdomsavdelningar
The main purpose of this thesis was to examine the collection management at five different hospital libraries´ children and youth?s section to discern different roles of the collections. We made qualitative interviews with five hospital librarians. The purpose was also to see how the collection development affected the different roles of the collections. We used two theories.
Språkanvändning i matematikundervisning- utifrån lärarens pespektiv
Sammanfattning
I denna studie undersöks hur några lärare ser och använder språk i matematikundervisning. Genom studien undersöks hur matematiska begrepp och kommunikation används i matematikundervisning för att stödja elevers lärande av ämnet utifrån ett antal lärarens perspektiv. Dessutom undersöks hur laborativa material påverkar elevers inlärning av matematiska begrepp.
Metoden som använts i studien är intervjuer med sex olika grundskolelärare. Intervjuerna fokuserar på lärarnas arbetssätt att använda sig av vardagsspråk, matematiska begrepp, kommunikation och laborativa material i matematikundervisning, samt hur dessa delar kan vara viktiga för utveckling av ämnet.
En förbättrad rullstolsplats på klass 1 bussar : I sammarbete med Benteler Engineering Services
The initiative for this project was taken by Benteler Engineering Services, as a result of having identified areas of improvement, in designated accessible areas like the wheelchair spot onboard buses. Depending on a wheelchair to be able to move around can understandably be challenging.Public transport is a common good in today`s society, however despite the measures taken towards adjusting to accessible needs, the majority of those being disabled chose different alternatives of transportation. This is due to reasons such as the drivers' poor attitude, furthermore the limitations of the space allocated to accessible needs, as people with strollers also use these spots onboard. Also, some wheelchair users find the rides unsafe, as they could easily fall over during without the appropriate space for them onboard the buses etc. These are only a few reasons why other options are sought out, i.e.
Röster ur arbetslösheten : En kvalitativ studie som belyser arbetslösas situation
The levels of unemployment are unusually high compared to recent years, and the consequences are diligently debated in media. Swedish safety systems regarding people?s welfare have gone through changes lately which affected the situation negatively for many concerned citizens. This study aimed to illustrate individual?s situation of unemployment within their social context.
Läromedel i matematikundervisning : Lärarens val och användning av läromedel i grundskolans tidigare år
SammanfattningSyftet med denna studie är att undersöka lärarens val och användning av matematikläromedel i grundskolans tidigare år. Med läromedel avses i denna studie det material som syftar till att hjälpa eleven att tillägna sig kunskaper i matematik. Exempel på de läromedel som förekommer i studien är lärobok, egenproducerat material, informations- och kommunikationsteknik (IKT) samt konkret material som ger möjlighet för flera sinnen att verka. Vi har valt att genomföra vår studie med stöd av två delstudier, intervju och observation. Våra intervjuer synliggör i huvudsak lärarens syn på vad som är viktigt vid lärande i matematik samt vad som ligger till grund för valet av läromedel.
En rekonstruktion av Skoklosterstolen : Barockens stoppningshistoria
Denna uppsats, vars första frö såddes vid ett studiebesök på Skokloster slott för två år sedan, behandlar barockens stoppningshistoria och en rekonstruktion av Skoklosterstolens stoppning. Målet med uppsatsen är att skapa ett intresse för historiska stoppningar och dess tekniker för både privatpersoner och yrkesmän.Undersökningar av litteratur, inventarielistor och Skoklosterstolarna själva ger anledning att tro att Skoklosterstolarna tillverkades 1708 till slottets dåvarande ägare Abraham Brahe. Som tidigare publicerats av Johan Knutsson finns det skäl att tro att stolarna tillverkats lokalt. Nya analyser presenteras i uppsatsen som styrker denna hypotes. Vidare redovisas vilka material som använts i originalstoppningen, identifierade bland annat med mikroskopering.
Investeringsprocessen - Skillnader mellan Corporate Venturing och Venture Capital
Vi har undersökt vilka skillnader som finns mellan investeringsprocessen för corporate venturing och investeringsprocessen för venture capital. Vårt empiriska material består av investeringsprocessen för Volvo Technology Transfer och vårt teoretiska material består av investeringsprocessen för venture capital. Detta är alltså utgångspunkten för vår jämförelse. Våra slutsatser är att det finns vissa väsentliga skillnader mellan processerna. Skillnaderna beror på investerartypernas olika mål och resurser.
Lantbruk i framtiden : ett praktikfall
The economic prerequisite to many farmers in Sweden after the EU membership and the
new agriculture policy has generated large demands on the farm management. Until year
2004 you got a grant based on what you had produced and not on consumer demand. In
2005 a new economic aid (Mid Term Revue) was introduced and the conditions has
changed again. Due to this I have chosen to do a cost-benefit analysis on a case, to
investigate if the present production is sustainable in the future.
My conclusion is that the profitability is acceptable even if the farm has a high debt. But
to make the production more profitable the products produced should be refined as much
as possible at the farm, to get maximum economic return.
Innovationsupphandling : Innovationspartnerskap, ett upphandlingsförfarande med genomslagskraft genemot befintliga förfaranden för upphandling av innovativa lösningar?
The frequency of innovative procurement is currently very low in Sweden. Innovative procurement is to procure unknown solutions to a defined problem or need for which it sometimes has not yet been established on the market. Current Swedish procurement legislation does not prevent innovation procurement, however, it limits official authorities to actively work with innovative companies to develop new solutions. Furthermore, some conflicts arise between the Swedish procurement legislation and the basic principles concerning public procurement developed under EU law, which must be considered in all procurements. Additionally, there is not a specific procurement procedure designed for innovative solutions in the current legislation.On the 15th of January 2014 three new directives on procurement rules were adopted with the general objective to simplify the procurement process and to make the whole system more flexible. A new procurement procedure has also arisen called innovation partnership.
Organisatoriskt lärande genom medarbetare : En studie om hur möjligheter till lärande för medarbetare skapar förutsättningar för organisatoriskt lärande
The purpose of the study is to analyze what conditions the specific company provides employees to enable organizational learning. To clarify the framing of the study a few quastions has been specified to narrow the issu. The questions that has been used are: what opportunities does the company creat to enable organizational learning and how does the emplyees contribute to organizational learning.In the search of knowledge to the previously questions this study becames a qualitative study with an ethnographic approach based on observations and interviews. This method gives the knowledge that makes us understand the actions that takes place in the oraganization and the shared image the oraganization provides. An understanding for the employees and the organization has been achived after compiling the empirical material from observation notes and transcripts from the interviewsIn the work whit the analysis the empirical material based on transcripts and observation notes has been the main material.
Den fria leken i förskolan : med fokus på pedagogers roll vid lek
Syftet med denna studie är att undersöka hur pedagoger agerar under den fria leken. Med denna studie vill vi se hur dessa ger barnen utrymme och material för att den fria leken ska skapas och utvecklas. Studien har baserats på intervjuer och observationer på två förskoleavdelningar på en förskola i mellersta Sverige. Resultatet som framkom efter bearbetningen av det insamlade materialet var att pedagoger ofta använder sig av en lekledarroll eller närgranskarroll för att ta sig in i leken. Resultatet visade även att barns lek behöver en vuxen som kan närvara och stödja både leken och lekens deltagare.
Fingerräkning : Lärarerns roll och betydelse för att ge elever en god taluppfattning
AbstractThe aim of this essay is to look into how teachers view pupils who use finger arithmeticduring mathematic classes. How do these teachers help them to move on with their learning,what information and problem-solving material do they use?I made qualitative interviews with grade two- and grade three teachers, in three schools.The interviews showed that the teachers find it difficult to adopt a suitable attitude towardsfinger arithmetic. In addition, lack of time for planning and lack of knowledge about variousexperimental methods caused further predicaments. The teachers were aware that arithmeticexperimental material was attainable at the schools, but time to learn about it and how to useit was lacking.