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8966 Uppsatser om Concept Development of a Stereotactic Head Frame for Use in Neurosurgery - Sida 2 av 598

Rackmonterad elektrolyscell

This report shows methods and workflow when exploring the potential to change Outotecs HCD Silver Electrolysis machine to a module type. It?s done as an attempt to lower the workshop and installation costs and to give customer a more accurate prize directly. To do this a concept was produced which was set to a stress test. Additional objectives were to investigate freight and installation procedures, pneumatic connections and to calculate the difference in cost.Once the concept, a reinforced type of the original frame, was chosen stress tests in computer simulations were made and appropriate alterations were made.

Fundament för kompaktkran : En universell lösning

This thesis describes the universalization, improvement and further development of acompact crane support frame for flatbed trucks. The work has been conducted at Eloch Fordonsteknik AB (henceforth EFAB) in Uppsala.The aim of the work has been to shorten the assembly time of the product. By doingso, the product can be kept on shelf, which in turn results in shorter lead time. Thishas been done by universalizing the support frame to be compatible with most of thechassis EFAB works with. Additionally, the entire construction has been made lighter,which will make it a more attractive choice for customers.A pre-study was conducted and information was gathered internally, as well asexternally, in order to ascertain that no limitation or possibility was overlookedduring the course of the project.One such limitation has been the geometry of the truck bed that the support frameshall be compatible with.

Produktutveckling av en storleksreducerbar gästsäng

This report is a result of a degree thesis at Luleå University of Technology together with Stram AB in Växjö. The project aimed to develop a size reducible bed, that gets small when folded and has a new slim design. The development of the new folding bed had the purpose to give Stram AB new ideas of how guest beds can look like and be used in the future. Information about Stram´s products and also information of other similar products on the market was gathered. A visit at a store, internet and interviews gave grater insight of the market, and of customer needs.

Konstruktion av statorstomme för synkrongenerator : Förslag på design av statorstomme för användning i vertikalaxlade vindkraftverk

This thesis describes a conceptual design of a support frame for a synchronousgenerator used in a vertical axis wind power plant. In this system the generator isplaced on ground level. The thesis also considers the design of housing for thesupport frame and generator. The concept presented in this report is based on anearlier design. Besides geometric design, simplified simulations has been run in orderto optimize some of the parts included in the construction considering naturalfrequencies and structural strength.The result is presented as CAD-models andan assembly drawing..

Alternativa metoder för att kontrollera ett användargränsnitt i en browser för teknisk dokumentation

When searching for better and more practical interfaces between users and their computers, additional or alternative modes of communication between the two parties would be of great use. This thesis handles the possibilities of using eye and head movements as well as voice input as these alternative modes of communication. One part of this project is devoted to find possible interaction techniques when navigating in a computer interface with movements of the eye or the head. The result of this part is four different controls of an interface, adapted to suit this kind of navigation, combined together in a demo application. Another part of the project is devoted to the development of an application, with voice control as primary input method.

Temperaturförhållande och fluidsammansättning vid metamorfos registrerat i karbonatbergarter på nordöstra Utö

The concept of sustainable development is a challenge that demands cooperation from all levels of society for it to be successful. The focus for this thesis is how politicians within the local councils understand the concept of sustainable development and how they implement it in political decision-making.The basis for the study is a questionnaire that was distributed to 303 local politicians in three municipalities of varying size in Southern Sweden. The study concentrates on departments within the local councils that are directly connected to the Swedish environmental law and the Swedish planning and construction law. One of the primary goals with the aforementioned laws is the achievement of sustainable development within one generation.The outcome of the study was that over half of the local politicians could correctly define sustainable development according to the World Commission on Environment and Development?s (WCED) definition.

Persona : En metod att utveckla och införa persona i en organisation

AbstractIn this thesis we aim to extend the current theories about a concept called persona. A persona is a model of a user, mostly based on qualitative research and made with such accuracy that it to some extent can be used as a replacement of a real user in a development process and as a communicative tool. We will present a way of constructing this persona without meeting the actual users and follow up with interviews from the organization using them. This will lead to a model over the process of introducing personas as a concept in an organization,previously not familiar with the concept. The model is adapted to also work for projects and organizations where the concept is already known..

Beräkning av ASME-flänsar enligt EN-standard

In this thesis, a transparent model of the human head has been constructed which was filled with a substance that represented the brain. This model was later crash tested. This was done in order to examine how a transparent model of the human head can be constructed to generate accurate data from crash tests. It was also done in order to examine how impacts on the front of the head can deform the rear of the brain. When a head is decelerating, the brain moves forward inside the skull and may hit the front of the skull.

Konkurrerande "frames": Förhandlingarna om EU:s tjänstedirektiv

This paper concerns the question of how one can frame a political message. I investigate how a political frame is bound both to the line of argumentation connected with a certain discourse and to the audience closely related to that discourse.I have chosen to study a single case where the policy process was characterized by a framing contest. The case shows how negotiating the new Services Directive is affected by framing efforts made by the parties negotiating.My conclusions are that the question of a Services Directive lent itself to a definition in terms of "either/or"-arguments. Thus the Directive could be considered either a threat or a possibility. It was the very nature of the matter - the development of the internal market on services - that made possible a debate along the lines of a "left/right"-struggle and where a frame that drew from the European Social Model offered the better explanation thereby succeding in defining the new Directive as a threat.

Lokal anpassning och implementering av Operation Management System

In this thesis, a transparent model of the human head has been constructed which was filled with a substance that represented the brain. This model was later crash tested. This was done in order to examine how a transparent model of the human head can be constructed to generate accurate data from crash tests. It was also done in order to examine how impacts on the front of the head can deform the rear of the brain. When a head is decelerating, the brain moves forward inside the skull and may hit the front of the skull.

Engreppsskördare med Head-Up Display

Arbetsbelastningen för föraren i en engreppsskördare är stor. Vid aptering måste föraren fokusera om blicken för att läsa av information från en Head-Down Display (HDD) samtidigt som föraren måste ha kontroll på kranspetsen vilket bidrar till arbetsbelastningen.Syftet med projektet var att undersöka om arbetsbelastningen i engreppsskördare reducerades med Head-Up Display (HUD) under aptering. Först testades fyra HUD-gränssnitt i en simulator, därefter omarbetades gränssnitten innan de slutligen testades i en engreppsskördare i fält. En HUD-demonstrator utvecklades för detta ändamål.Resultatet visade att arbetsbelastningen samt apteringstiderna minskade i simulatortestet med HUD jämfört med HDD. I fältstudien förblev arbetsbelastningen oförändrad men apteringstiderna minskade.Att arbetsbelastningen minskade med HUD jämfört med HDD kan bero på att HUD är bättre än HDD och/eller att konceptens gränssnitt är effektivare att arbeta med än Valmet Maxi gränssnittet.En HUD-demonstrator som fungerar under ljusstarka förhållanden och som tål påfrestningarna i en skördare borde utvecklas för vidare tester..

Mekanisk modell av människans huvud för simulering av skalltrauma och hjärnskada

In this thesis, a transparent model of the human head has been constructed which was filled with a substance that represented the brain. This model was later crash tested. This was done in order to examine how a transparent model of the human head can be constructed to generate accurate data from crash tests. It was also done in order to examine how impacts on the front of the head can deform the rear of the brain. When a head is decelerating, the brain moves forward inside the skull and may hit the front of the skull.

Bibliotekschefer och stress - En kvantitativ studie av arbetsrelaterade stressfaktorer i svenska folkbibliotek

This dissertation discusses head librarians in Swedish public libraries and the stress factors which affect them. The aim is to map out potential stress factors which head librarians come across in their day-to-day work. The purpose of the dissertation is to answer the following question: what stress factors affect library managers in Swedish public libraries? The dissertation was conducted through a literature study, informal interviews and a quantitative questionnaire. The results of the quantitative questionnaires show that the factor that produces the highest level of stress is having too many different tasks.

Hållbar Utveckling 2010 : Hur uppfattar lärare begreppet idag?

This work is a study of subject teachers in social studies and science understand the concept of sustainable development. The work uses a qualitative and a quantitative approach. Teachers in various schools and stages have been answering questions about how they perceive sustainability, how they implement it in teaching and if they feel that school is important for the future of sustainable development at large.The theoretical background is based on environmental ethics as well as the different meanings and definitions of the concept of sustainable development. These theories and definitions are coupled with the empirical results.The study concludes that all teachers throughout the study perceive the concept of sustainable development as something ecological, something that has to do with nature. A few teachers also state economic and social dimensions.Questions about how the teachers in the study implement the concept in their teaching can be seen as three different approaches.

Baby Versatile Concept

Sometimes one get sucked in old thinking which results in that the development brakes down. This is exactly what has happened in the industry Baby Versatile Concept will enter. With innovative solutions on elementary problems and new developed functions the marked not yet seen will the product take land. Though the problem already from start had high potential it was no surprise that, by the realization of the ideas in mars, interested venture capital of four hundred thousand Swedish kronor. Already by the start of the project a concept patent was planned and will now be realized.

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