| 1. |
- Brucas, Rimantas, 1965, et al.
(författare)
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Tunneling and charging effects in discontinuous superparamagnetic Ni81Fe19/Al2O3 multilayers
- 2010
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Ingår i: Physical Review B - Condensed Matter and Materials Physics. - : American Physical Society. - 2469-9950 .- 2469-9969 .- 1098-0121 .- 1550-235X. ; 81:22, s. 224437-
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Tidskriftsartikel (refereegranskat)abstract
- The magnetic and transport properties of films based on discontinuous layers of Ni81Fe19 (Py) embedded in Al2O3 were investigated. In films with nominal Py thicknesses 6 and 8 angstrom superparamagnetic particles with median diameters D-med = 2.8 and 3.1 nm and distribution widths sigma(D)= 1.2 and 1.3 nm were formed. Current voltage (IU) curves were measured with the current perpendicular to the film plane. The analyses show that the charge transport occurs via tunneling; with the charging energy supplied by thermal fluctuations at high temperature, T >= 100 K, and by the electric field at low temperature, T
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| 2. |
- Ingram Bogusz, Claire, et al.
(författare)
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Tracking the Digital Evolution of Entrepreneurial Finance: The Interplay Between Crowdfunding, Blockchain Technologies, Cryptocurrencies, and Initial Coin Offerings
- 2020
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Ingår i: IEEE Transactions on Engineering Management. - : Institute of Electrical and Electronics Engineers (IEEE). - 0018-9391 .- 1558-0040. ; 67:4, s. 1099-1108
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Tidskriftsartikel (refereegranskat)abstract
- A vibrant development is currently taking place in entrepreneurial finance due to the field's digital evolution over recent years. This article aims to assess the interplay between four of the key phenomena that has fuelled this development, namely crowdfunding, blockchain technologies, cryptocurrencies, and initial coin offerings (ICOs). By making use of social media analytics, public discussions on social media concerning crowdfunding, blockchain technologies, cryptocurrencies, and ICOs have been systematically tracked in social media over three time periods between the May 6, 2017, and October 2, 2018. In doing so, a total of 197 770 captured posts across social media platforms have been collected and analyzed. The results illustrate that discussions on blockchain technologies dominated the interplay in the first analyzed time period, that discussions on cryptocurrencies and ICOs dominated the interplay in the second analyzed time period, while discussions concerning blockchain technologies, cryptocurrencies, and ICOs highly converge in the third time period. By illustrating this shift over the analyzed time periods and by offering a systematic exploration of key characteristics of the interplay at hand, this article adds to previous literature on entrepreneurial finance by providing an empirical contribution which details the coevolution of these phenomena in recent years.
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| 3. |
- Siva, Vanajah, et al.
(författare)
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The support of Quality Management to sustainable development : a literature review
- 2016
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Ingår i: Journal of Cleaner Production. - : Elsevier. - 0959-6526 .- 1879-1786. ; 138, s. 148-157
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Forskningsöversikt (refereegranskat)abstract
- Quality Management is considered to be suitable as support for the integration of sustainability considerations in areas such as product development. The purpose of this paper is to review research in which Quality Management methods, tools or practices have been used in conjunction with sustainable development initiatives. We have identified four themes that synthesize the research on Quality Management and its support to approaches for sustainable development: (I) supporting sustainability through integration of management systems, (II) Quality Management as support to the implementation of Environmental Management Systems and to the management of sustainability, (III) supporting integration of sustainability considerations in daily work, and (IV) supporting stakeholder management and customer focus. By far the most research has been conducted within the first two themes. This paper also contributes with proposals for future research, such as the need to move beyond existing standards and management systems to enable more radical improvements, and the need for empirical evidence of the effect of integrated management systems on environmental performance. We also highlight the point that Quality Management practices and tools must be developed and adapted in order to support sustainability considerations.
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