2021
Authors
Sequeira, A; Santos, LP; Barbosa, LS;
Publication
2021 IEEE/ACM 2ND INTERNATIONAL WORKSHOP ON QUANTUM SOFTWARE ENGINEERING (Q-SE 2021)
Abstract
This extended abstract reports on on-going research on quantum algorithmic approaches to the problem of generalised tree search that may exhibit effective quantum speedup, even in the presence of non-constant branching factors. Two strategies are briefly summarised and current work outlined.
2021
Authors
Roth, C; Pereira, C; Pedrosa, R; Roth, M;
Publication
SMART AND SUSTAINABLE COLLABORATIVE NETWORKS 4.0 (PRO-VE 2021)
Abstract
The economic development process associated with entrepreneurial ecosystems comprises different approaches and its understanding is vital for regional growth. The Polytechnic Institute of Porto is boosting its entrepreneurial ecosystem, to reinforce its action as an agent of economic and social development in the regions where it operates. The objective of the work was to propose the criteria for the construction of an analysis model that allows the identification of regional "strategic bets" that will support the development of proposals for the provision of support services that integrate with the regional business base and incorporate "Decision Intelligence" to performance of the "Entrepreneurial Regional Observatory of the Porto Startup Network." The methodology used was an exploratory research and, at the end, the initiatives taken and the results are presented.
2021
Authors
Fortuna, P; Cruz, LB; Maia, R; Cortez, V; Nunes, S;
Publication
Workshop Proceedings of the 15th International AAAI Conference on Web and Social Media, ICWSM 2021 Workshops, [virtual], June 7, 2021
Abstract
2021
Authors
Souza, V; Maciel, A; Nedel, L; Kopper, R; Loges, K; Schlemmer, E;
Publication
Journal on Interactive Systems
Abstract
2021
Authors
Sauvage, JF; Schwartz, N; Vievard, S; Bonnefois, A; Velluet, MT; Correia, C; Cassaing, F; Fusco, T; Michau, V; Krapez, JC; Ferrari, M; Laginja, I;
Publication
SPACE TELESCOPES AND INSTRUMENTATION 2020: OPTICAL, INFRARED, AND MILLIMETER WAVE
Abstract
The volume available on-board small satellites limit the optical aperture to a few centimetres, which limits the Ground-Sampling Distance (GSD) in the visible to approximately 3 m at 500 km. We present a performance analysis of the concept of a deployable CubeSat telescope. This payload will allow a tripling of the ground resolution achievable from a CubeSat imager, hence allowing very high resolution imaging from Low Earth Orbit (LEO). The project combines precision opto-mechanical deployment and cophasing of the mirrors segments using active optics. The payload has the potential of becoming a new off-the-shelf standardised system to be proposed for all high angular resolution imaging missions using CubeSats or similar nanosats. Ultimately, this technology will develop new instrumentation and technology for small satellite platforms with a primary mirror size equal or larger than 30 cm. In this paper, we present the breakdown of the different error sources that may affect the final optical quality and propose cophasing strategies. We show that the piston, tip and tilt aberrations may need to be as small as 15 nm RMS to allow for diffraction-limited imaging. By taking a co-conception approach, i.e. by taking into account the post-processing capability such as deconvolution, we believe these constraints may be somewhat released. Finally, we show numerical simulation of different solutions allowing the aberrations of the primary mirror segments.
2021
Authors
Machado, BS; Silva, JMC; Lima, SR; Carvalho, P;
Publication
Twelfth International Conference on Ubiquitous and Future Networks, ICUFN 2021, Jeju Island, South Korea, August 17-20, 2021
Abstract
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