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Zuiderwijk, A.M.G. (author), Janssen, M.F.W.H.A. (author), Davis, C.B. (author)Open data ecosystems are expected to bring many advantages, such as stimulating citizen participation and innovation. However, scant attention has been given to what constitutes an open data ecosystem. The objective of this paper is to provide an overview of essential elements of open data ecosystems for enabling easy publication and use of open...journal article 2014
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Zuiderwijk, A.M.G. (author), Helbig, N. (author), Gil-García, J.R. (author), Janssen, M.F.W.H.A. (author)For decades good governance scholarship has focused attention on the importance of government openness [26], [34]. Since the 1960s, Freedom of Information (FOI) legislation has formed the backbone of institutional support for opening information and documents [76] and participatory processes [4], [79]. However, FOI represents a passive approach...journal article 2014
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Penkin, D. (author), Janssen, G.J.M. (author), Yarovoy, A. (author)To effectively localise a source node in a dense wireless tiny-sensor network with an arbitrary 2D/3D node distribution, a novel approach suitable to describe the hop progress of source-to-sink path in such a system is proposed. In this approach, the network topology is described as a regular lattice and relates the statistical parameters of the...journal article 2014
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Calado, V.E. (author), Zhu, S.E. (author), Goswami, S. (author), Xu, Q. (author), Watanabe, K. (author), Taniguchi, T. (author), Janssen, G.C.A.M. (author), Vandersypen, L.M.K. (author)In this letter, we report the observation of ballistic transport on micron length scales in graphene synthesised by chemical vapour deposition (CVD). Transport measurements were done on Hall bar geometries in a liquid He cryostat. Using non-local measurements, we show that electrons can be ballistically directed by a magnetic field (transverse...journal article 2014
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Janssen, M.F.W.H.A. (author), Tan, Y. (author)Recent scandals have stressed the need for information sharing among companies and governments. The sharing of information is not easy as companies want to keep their administrative burden low, whereas governments need high information quality. These drivers have resulted in the initiating of programs for developing infrastructures for...journal article 2014
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Janssen, R.M.J. (author), Baselmans, J.J.A. (author), Endo, A. (author), Ferrari, L. (author), Yates, S.J.C. (author), Baryshev, A.M. (author), Klapwijk, T.M. (author)We demonstrate photon noise limited performance in both phase and amplitude readout in microwave kinetic inductance detectors (MKIDs) consisting of NbTiN and Al, down to 100 fW of optical power. We simulate the far field beam pattern of the lens-antenna system used to couple radiation into the MKID and derive an aperture efficiency of 75%. This...journal article 2013
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Smit, P.B. (author), Janssen, T.T. (author)The interaction of ocean waves with variable currents and topography in coastal areas can result in inhomogeneous statistics because of coherent interferences, which affect wave-driven circulation and transport processes. Stochastic wave models, invariably based on some form of the radiative transfer equation (or action balance), do not account...journal article 2013
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Van den Brink, L. (author), Janssen, P. (author), Quak, W. (author)Linked data provide an alternative route for dissemination of spatial information as compared to the traditional SOA-based SDI approach. Where the latter is built on predefined structuring of semantics within domains, linked data is open to linking information to any data over the Web. In this respect both are complementary. The traditional...journal article 2013
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Braat, J.J.M. (author), Janssen, A.J.E.M. (author)Various authors have presented the aberration function of an optical system as a power series expansion with respect to the ray coordinates in the exit pupil and the coordinates of the intersection point with the image field of the optical system. In practical applications, for reasons of efficiency and accuracy, an expansion with the aid of...journal article 2013
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Zhu, S.E. (author), Ghatkesar, M.K. (author), Zhang, C. (author), Janssen, G.C.A.M. (author)We present a pressure sensor based on the piezoresistive effect of graphene. The sensor is a 100?nm thick, 280??m wide square silicon nitride membrane with graphene meander patterns located on the maximum strain area. The multilayer, polycrystalline graphene was obtained by chemical vapor deposition. Strain in graphene was generated by applying...journal article 2013
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Rodriguez, S.R.K. (author), Janssen, O.T.A. (author), Lozano, G. (author), Omari, A. (author), Hens, Z. (author), Gomez Rivas, J. (author)We numerically demonstrate that a periodic array of metallic nanorods sustains a maximum near-field enhancement and a far field (FF)-induced transparency at the same energy and in-plane momentum. The coupling of bright and dark plasmonic lattice resonances, and electromagnetic retardation along the nanorod length, are responsible for this effect...journal article 2013
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Zuiderwijk-van Eijk, A.M.G. (author), Janssen, M.F.W.H.A. (author)In developing open data policies, governments aim to stimulate and guide the publication of government data and to gain advantages from its use. Currently there is a multiplicity of open data policies at various levels of government, whereas very little systematic and structured research has been done on the issues that are covered by open data...journal article 2013
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Joha, A. (author), Janssen, M.F.W.H.A. (author)The sourcing of cloud services is a relatively new type of service delivery model in which an organization gets access to IT services via a cloud service provider that is delivering services over the web to many users on a pay per use or period basis. Even though the importance of IT governance is often underlined, there is limited literature...journal article 2012
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Bharosa, N. (author), De Winne, C.P.I. (author), Van Wijk, R. (author), Janssen, M.F.W.H.A. (author)Lean government is all about doing better with less through the use of ICT and the realisation of process improvements. The recently introduced eXtensible Business Reporting Language (XBRL) has shown some initial success in realising lean government. Once data is stored in XBRL format, businesses can transmit it electronically to government for...journal article 2012
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- Klievink, A.J. (author), Janssen, M.F.W.H.A. (author) journal article 2012
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Zuiderwijk, A.M.G. (author), Jeffery, K.G. (author), Janssen, M.F.W.H.A. (author)Public and private organizations increasingly release their data to gain benefits such as transparency and economic growth. The use of these open data can be supported and stimulated by providing considerable metadata (data about the data), including discovery, contextual and detailed metadata. In this paper we argue that metadata are key...journal article 2012
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Klievink, A.J. (author), Janssen, M.F.W.H.A. (author), Tan, Y.H. (author)ICT enables business-to-government (b-to-g) information exchange, which can be used to enhance control and compliance by businesses. However, sharing information can cause resistance by businesses, as for them information is key to competitive advantage, whereas governments need this information to conduct their tasks at lower costs. In this...journal article 2012
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Janssen, M.F.W.H.A. (author), Charalabidis, Y. (author), Zuiderwijk, A.M.G. (author)Although a significant number of public organizations have embraced the idea of open data, many are still reluctant to do this. One root cause is that the publicizing of data represents a shift from a closed to an open system of governance, which has a significant impact upon the relationships between public agencies and the users of open data....journal article 2012
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Andreykiv, A. (author), Janssen, D. (author), Nelissen, R.G.H.H. (author), Vlastar, E.R. (author)Background Cement injection into osteolytic areas around the cement mantle is a technique for refixation of loose hip implants for patients who cannot undergo standard revision surgery. Preliminary clinical results show the improvement in walking distance, patients' independence and pain relief. Methods In this study, we use a detailed finite...journal article 2012
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Bharosa, N. (author), Lee, J. (author), Janssen, M. (author), Rao, H.R. (author)One of the main challenges in cross-border disaster management is the development and use of information systems that cater the needs of heterogeneous relief agencies, policies, activities and cultures. Drawing upon activity theory, this paper examines cross-border information systems development for disaster management. We infuse the concept of...journal article 2012