131,029 research outputs found
Multiwavelength analysis as a probe of accretion and radiative processes in LINERs
We study the multiwavelength properties of an optically selected sample of
Low Ionization Nuclear Emission-line Regions (LINERs), in an attempt to
determine the accretion mechanism powering their central engine. We show how
their X-ray spectral characteristics, and their spectral energy distribution
compare to luminous AGN, and briefly discuss their connection to their less
massive counter-parts galactic black-hole X-ray binaries.Comment: 2 Pages. Proceedings of IAUS 290 "Feeding Compact Objects: Accretion
on All Scales", C. M. Zhang, T. Belloni, M. Mendez & S. N. Zhang (eds.
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Human-centred design: An emergent conceptual model
(Human-centred design: an emergent conceptual module by Zhang T and Dong H)
Understanding human needs and how design responds to human needs are essential for human-centred design (HCD). By combining Maslow’s hierarchy of needs model and Küthe’s “design and society” model, this paper proposes a conceptual model of human-centred design which marries psychology and sociology in investigating the relationship between design and human needs. The study reveals a tendency that design evolution responds to the hierarchy of human needs. Nowadays design tends to care for more levels of human needs
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