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Sökning: LAR1:cth

  • Resultat 52461-52470 av 91444
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52461.
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52462.
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52463.
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52464.
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52465.
  • Lundqvist, Björn, et al. (författare)
  • Thermal conductivity of isotopically enriched silicon carbide
  • 2013
  • Ingår i: THERMINIC 2013 - 19th International Workshop on Thermal Investigations of ICs and Systems, Proceedings. - : IEEE. ; , s. 58-61, s. 58-61
  • Konferensbidrag (refereegranskat)abstract
    • Since the semiconductor silicon carbide presents attractive opportunities for the fabrication of novel electronic devices, there is significant interest in improving its material quality. Shrinking component sizes and high demands for efficiency and reliability make the capability to release excess heat an important factor for further development. Experience from Si and Diamond tells us that isotopic enrichment is a possible way to increase the thermal conductivity. We have produced samples of 4H-SiC that contain 28Si and 12C to a purity of 99.5%. The thermal conductivity in the c-direction of these samples has been measured by a transient thermoreflectance method. An improvement due to enrichment of at least 18% was found. The result is valid for a temperature of 45K above room temperature. A preliminary study of the temperature dependence of the thermal conductivity demonstrates a strong temperature dependence in agreement with earlier reports for 4H. © 2013 IEEE.
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52466.
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52467.
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52468.
  • Lundqvist, Mats, 1965 (författare)
  • A Packaging Approach for Evaluating Ideas
  • 2014
  • Ingår i: Chapter 4 in Alänge, Sverker & Lundqvist, Mats eds. (2014) Sustainable Business Development: Frameworks for Idea Evaluation and Cases of Realized Ideas, Chalmers University Press, Gothenburg. - 9789187463037 ; , s. 43-62
  • Bokkapitel (övrigt vetenskapligt/konstnärligt)abstract
    • In this chapter an approach for idea evaluation is explored. Idea evaluation can be seen as the first stage in a sustainable business development process eventually resulting in solutions that are more sustainable – ecologically, socially and economically. Not all evaluated ideas become reality. However, the more the potentials of an idea are identified and expressed, the more likely it is for the idea to gain momentum and attract more resources. Our approach to idea evaluation differs from established theory in many ways. It combines characterization of future societal, customer and business utilities of an idea. It is not a full business plan committing stakeholders towards the execution of a business. It focuses on the creative packaging and communication of the idea in ways that enable future and often not yet identified stakeholders to be attracted to the idea, thereby hopefully helping to bring it forward.We call our perspective the “packaging approach” to idea evaluation. Packaging ideas is seen as an activity of determining and communicating attributes around an idea relevant to various stakeholders as well as to society at large. Ideas can be seen as a package in both the “gift-wrapping” sense of the word – making ideas attractive – and the “parcel” sense of the word: giving ideas new destinations, inspiring new settings and people. Ultimately we believe that the knowledge economy is a place where well-packaged ideas mobilize new entrepreneurial mindsets in order to drive sustainable development.A successful packaging of a new idea requires the ability to position an idea in a future attractive situation of use, while at the same time being very clear and realistic about the current state of the idea. This combined visionary and realistic packaging gives ideas the power to inspire towards long-term opportunities (visionary power) as well as lowering entrance barriers (through realistic descriptions and advice) for anyone aspiring to take the idea further. It is known from our innovation history that good ideas often take unexpected and parallel routes to success (see e.g. van de Ven et al., 2000). Making ideas well-packaged helps leverage this often non-linear, distributed and interactive stakeholder process around the nature of innovation processes. In short, idea evaluation in our “packaging approach” results in a seven-page report and matched PowerPoint presentation. This format, of course, is not static. However, it is the pragmatic result of several years of idea evaluation practice in the Gothenburg innovation system. The format forces the evaluator to think through a clear disposition (package) of the idea evaluation and is sufficiently long (but not too long) for this package to attract the interest of new or existing stakeholders around an idea. We propose that an idea package address the following issues:1.Describing the idea (functionality, novelty, freedom to operate, etc.)2.Generating value visions around situations of use3.Determining next steps in terms of further developments and financial needs
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52469.
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52470.
  • Lundqvist, Mats, 1965, et al. (författare)
  • Academic entrepreneurship revisited: university scientists and venture creation
  • 2013
  • Ingår i: Journal of Small Business and Enterprise Development. - 1462-6004. ; 20:3, s. 603-617
  • Tidskriftsartikel (refereegranskat)abstract
    • Purpose: Venture creation is often seen as the form of academic entrepreneurship least compatible with the role of university scientists. The purpose of the article is to explore the changing role of university scientists towards venture creation, and understand the influence of university-driven initiatives for venture creation. Design/methodology approach: The article is based on a qualitative study of two venture creation cases: one from a US university, and one building from two universities in Sweden. The cases and associated university environments were selected due to their venture creation activity. University venture creation data of the three universities complements the cases.Findings: Venture creation at universities can be more compatible with the traditional role of the university scientist. Centers and laboratories concerned with entrepreneurship and action-based education are identified as key university resources allowing university scientists to engage in venture creation in more compatible ways; not having to become the lead venture creator.Research limitations/implications: The study underlying the article is limited to three university environments (in two countries) where venture creation activity is relatively frequent. Originality/value: The article shows that venture creation can be more compatible the role of the university scientist due to more collective entrepreneurial activity at universities. Furthermore, university scientists, in synergizing between different entrepreneurial roles, are important for venture creation without taking the lead venture entrepreneur role. Involving students into venture creation together with scientists is proposed as one such important entrepreneurial role not previously recognized.
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