Sökning: "Johan Lundin"

Visar resultat 11 - 15 av 21 avhandlingar innehållade orden Johan Lundin.

1. 11. Kinetic Energy Storage and Magnetic Bearings : for Vehicular Applications

   Författare :Johan Abrahamsson; Hans Bernhoff; Urban Lundin; Richard Magdalena Stephan; Uppsala universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; flywheel; magnetic bearing; energy storage; electric vehicle; Engineering Science with specialization in Science of Electricity; Teknisk fysik med inriktning mot elektricitetslära;

   Sammanfattning : One of the main challenges in order to make electric cars competitive with gas-powered cars is in the improvement of the electric power system. Although many of the energy sources currently used in electric vehicles have sufficientlyhigh specific energy, their applicability is limited due to low specific power. LÄS MER

3. 12. Engaging in Urban Living Lab Co-design

   Författare :Esbjörn Ebbesson; Vaike Fors; Jesper Lund; Johan Lundin; Högskolan i Halmstad; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Urban Living Labs; Participatory Design; CoDesign;

   Sammanfattning : Urban Living Labs (ULL) have become a common way to address wicked design challenges within the future mobility, and smart city context. The move toward ULL is part of a paradigm shift away from focusing purely on the IT-artifact, innovation, and user-centeredness toward focusing on the urban context and the construction of a place as a social context rather than implementation of a product or service in isolation. LÄS MER

4. 13. Fångsamhället som inte skulle finnas : Överlevnad och anpassning i fängelse under åren 1890–1920

   Författare :Viktor Englund; Dag Lindström; Lars Garpenhag; Johan A. Lundin; Uppsala universitet; []
   Nyckelord :HUMANIORA; HUMANITIES; Prison; Prisoners; Långholmen; Auburn System; Congregate System; Philadelphia System; Separate System; Self-Harm Behavior; Smuggling; Prisoners Communication; Prison Community; Historia; History;

   Sammanfattning : This dissertation studies how prisoners could affect and influence their life in two different prison systems and what it meant for how the systems worked in practice. The systems in question are the Philadelphia system (the separate system) and the Auburn system (the congregate system). LÄS MER

5. 14. Improving the functionality of synchronous machines using power electronics

   Författare :Fredrik Evestedt; Urban Lundin; C. Johan. D. Abrahamsson; Jon Kjellin; Uppsala universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Power electronics; Synchronous machines; Excitation systems; Magnetic thrust bearing; Starting synchronous machines; Split rotor; Rotating electronics; Magnetic fields; Measurement systems; Unbalanced magnetic pull; Harmonics; Engineering Science with specialization in Science of Electricity; Teknisk fysik med inriktning mot elektricitetslära;

   Sammanfattning : With the advent of modern power electronics there is reason to explore what can be achieved when it is applied to a mature technology like synchronous machines. In this text several concepts will be presented on how it is possible to control forces and how to get better performance out of synchronous machines by using power electronics. LÄS MER

7. 15. Preparing Spatial Haptics for Interaction Design

   Författare :Jonas Forsslund; Eva-Lotta Sallnäs Pysander; Ylva Fernaeus; Jan Gulliksen; Karl-Johan Lundin-Palmerius; Karon MacLean; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; haptics; interaction design; surgery simulation; haptik; interaktionsdesign; medicinsk simulering; kirurgi; Människa-datorinteraktion; Human-computer Interaction;

   Sammanfattning : Spatial haptics is a fascinating technology with which users can explore and modify3D computer graphics objects with the sense of touch, but its application potentialis often misunderstood. For a large group of application designers it is still unknown,and those who are aware of it often have either too high expectations of what is technicallyachievable or believe it is too complicated to consider at all. LÄS MER