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- Lind, Erik, et al.
(author)
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High Frequency Performance of Vertical InAs Nanowire MOSFET
- 2010
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In: 2010 22Nd International Conference On Indium Phosphide And Related Materials (Iprm). - 1092-8669. - 9781424459193
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Conference paper (peer-reviewed)abstract
- We report on RF characterization of vertical, 100-nm-gate length InAs nanowire MOSFETs, utilizing wrap-gate technology and Al2O3 high-kappa gate oxide. The transistors show f(t)=5.6 GHz and f(max)=22 GHz, mainly limited by parasitic capacitances. The RF device performance is described using a hybrid-pi model taking hole generation at the drain into account. Electrostatic modeling of the parasitic capacitances for arrays of vertical nanowires indicates that a strong reduction in extrinsic capacitances can be achieved for devices with a small inter-wire separation.
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| 3. |
- Marganiec, J., et al.
(author)
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Coulomb breakup of 17Ne from the viewpoint of nuclear astrophysics
- 2012
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In: Proceedings of Science. - Proceedings of Science : Sissa. - 1824-8039.
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Conference paper (peer-reviewed)abstract
- By the Coulomb breakup of 17Ne, the time-reversed reaction 15O(2p,γ)17Ne has been studied. This reaction might play an important role in the rp process, as a break-out reaction of the hot CNO cycle. The secondary 17Ne ion beam with an energy of 500 MeV/nucleon has been dissociated in a Pb target. The reaction products have been detected with the LAND-R3B experimental setup at GSI. The preliminary differential and integral Coulomb dissociation cross section sCoul has been determined, which then will be converted into a photo-absorption cross section sphoto, and a two-proton radiative capture cross section σcap. Additionally, information about the structure of the 17Ne, a potential two-proton halo nucleus, will be received. The analysis is in progress. © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence.
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| 5. |
- Algotsson, Martin, et al.
(author)
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In-cylinder Surface Thermometry using Laser Induced Phosphorescence
- 2012
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In: [Host publication title missing]. ; , s. 482-487
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Conference paper (peer-reviewed)abstract
- Surface temperature in internal combustion engines is of high interest when studying heat losses. Two approaches for retrieving the surface temperatures are thermocouples and Laser Induced Phosphorescence, LIP. This study aims to analyze LIP as a technique for measuring surface temperature in internal combustion engines. The motivation for this study is the need for accurate surface temperatures which can be used by predictive models and increase knowledge about heat transfer. In this work LIP measurements have been carried out in two optical engines. In the first engine a thermographic phosphor was applied on top of a metal piston. The second engine was fitted with a quartz liner which was coated with phosphor material. Several coating thicknesses have been tested and the LIP temperature was extracted from both opposing sides of the phosphor. Both engines were run in HCCI mode with reference fuels and electrically heated air. In a previous publication, the authors showed that a layer of phosphor can show different temperatures i.e. a higher temperature on the side facing the cylinder gas than on the side facing the wall. In this study it is shown which thickness is needed to accurately present the temperature for typical engine combustion. With an increasing thickness of the phosphor material, the surface gets gradually insulated and the phosphor temperature reading becomes inaccurate. LIP measurements from a quartz ring and a metal piston have been compared and the temperature increase during combustion is similar although the heat conductivity of quartz is 40-200 times smaller than the metal piston. Measurements with thermocouples often show a lower temperature increase than what is seen in the LIP results. The difference in heat conductivity between the phosphor coating and the underlying surface is of importance for understanding what temperature is actually measured.
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| 7. |
- Andersson, Hans, 1962-, et al.
(author)
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The Role of Patent Engineer - Inventor Interaction for Research and Development Creativity
- 2014
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Conference paper (peer-reviewed)abstract
- Patents as a strategic tool has been much in focus lately, both in research and in the corporate world. Considering this, there has been surprisingly little interest paid to the process in which patents are generated within firms. Based on interviews with patent engineers and inventors who have been involved in interaction with each other in patenting processes, plus their patent managers, this study describe and discuss the patent drafting process as one (partly) driven by interaction. The patent drafting process is described as a process of asymmetrical collaboration delivering two distinct, but related outcomes – a refined invention and a patent application that most likely is better than it would have been otherwise. These outcomes are not cases of collective creativity as patent engineers do not invent and inventors do not (normally) define patent claims. This does not diminish the importance of the collaboration. Three roles - “opportunity recognizer”,“konstruktiver opponent”, and “enabling bureaucrat” – are identified and used to frame the patent engineers’ work and contributions to creativity.
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| 9. |
- Arvola, Mattias, 1975-, et al.
(author)
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Early Explorations of Interaction Design for Nature Experience
- 2007
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In: 1st international conference on Cross-Media Interaction Design, CMID 2007.
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Conference paper (other academic/artistic)abstract
- How can interaction design be used to advance information design, interactive services, and in the end increase the tourist attraction at nature reserves and national parks? Based on sketching, field studies and analysis of the experience of visiting nature reserves and national parks, 60 interaction design and media technology students at the advanced level have developed initial concepts and early prototypes for interactive services. Based on their design alternatives, we develop a categorization of different kinds of applications: guides, routes, events, games, installations, and websites. We finally discuss briefly the design ideas in terms of cross-platform applications, multiple platform applications, embodied multimodal experiences, user generated content, and location-based information.
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| 10. |
- Ask, Urban, 1956, et al.
(author)
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IT Governance in the light of Paradox - A Social System Theory Perspective
- 2006
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In: The 40th Hawaii International Conference on System Sciences, 2007.
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Conference paper (peer-reviewed)abstract
- This paper uses Niclas Luhmann's concepts of paradox and deparadoxization as a starting point for looking at IT governance within large, Swedish organizations. All in all a total of 25 organizations within both the public and private sector have been investigated through interviews with the companies Chief Information Officers. The results are presented in relation to a number of areas within the study that could be identified as dichotomies, or areas where the respondents had to deal with conflicting logics. The results are discussed in general terms in relation to IT governance practice as well as the potential value of applying Luhmann's theory of social systems to the study of IT governance
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