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  • EDP Sciences  (2)
  • Zhang, H.  (2)
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  • EDP Sciences  (2)
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  • 1
    In: E3S Web of Conferences, EDP Sciences, Vol. 111 ( 2019), p. 02043-
    Abstract: Buildings are typically equipped with a number of elements and devices (e.g., windows, blinds, luminaires, radiators) to control indoor environmental conditions. The availability, effectiveness, and usability of control devices and their interfaces constitute an essential aspect of built environments’ quality. This aspect has been sometimes referred to as indoor-environmental “affordance” (or “ecological valency”) and can be interpreted as a descriptor of buildings’ responsiveness toward inhabitants’ needs and requirements. However, in contrast to some other building quality aspects such as energy efficiency, there is a lack of systematic evaluation or certifications procedures for objective characterization of indoor environments’ affordance as related to the availability and effectiveness of control devices and their human interfaces. This paper entails an exploration of the potential for and associated challenges of designing and implementing affordance measurement and certification procedures. Challenges include, above all, assigning relative weights and coefficient values to different domains (e.g., thermal, visual, acoustical), devices, and levels of their effectiveness. Irrespective of their success to date, attempts toward operationalization of indoor-environmental affordance can be quite beneficial: The affordance framework can offer a systematic, intuitive, and compact framework to guide the workflow toward the provision and maintenance of adequate indoor environments for human occupancy.
    Type of Medium: Online Resource
    ISSN: 2267-1242
    Language: English
    Publisher: EDP Sciences
    Publication Date: 2019
    detail.hit.zdb_id: 2755680-3
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  • 2
    In: Astronomy & Astrophysics, EDP Sciences, Vol. 659 ( 2022-03), p. A84-
    Abstract: Intermediate-mass black holes (IMBHs) span the approximate mass range 100−10 5   M ⊙ , between black holes (BHs) that formed by stellar collapse and the supermassive BHs at the centers of galaxies. Mergers of IMBH binaries are the most energetic gravitational-wave sources accessible by the terrestrial detector network. Searches of the first two observing runs of Advanced LIGO and Advanced Virgo did not yield any significant IMBH binary signals. In the third observing run (O3), the increased network sensitivity enabled the detection of GW190521, a signal consistent with a binary merger of mass ∼150  M ⊙ providing direct evidence of IMBH formation. Here, we report on a dedicated search of O3 data for further IMBH binary mergers, combining both modeled (matched filter) and model-independent search methods. We find some marginal candidates, but none are sufficiently significant to indicate detection of further IMBH mergers. We quantify the sensitivity of the individual search methods and of the combined search using a suite of IMBH binary signals obtained via numerical relativity, including the effects of spins misaligned with the binary orbital axis, and present the resulting upper limits on astrophysical merger rates. Our most stringent limit is for equal mass and aligned spin BH binary of total mass 200  M ⊙ and effective aligned spin 0.8 at 0.056 Gpc −3 yr −1 (90% confidence), a factor of 3.5 more constraining than previous LIGO-Virgo limits. We also update the estimated rate of mergers similar to GW190521 to 0.08 Gpc −3 yr −1 .
    Type of Medium: Online Resource
    ISSN: 0004-6361 , 1432-0746
    RVK:
    RVK:
    Language: English
    Publisher: EDP Sciences
    Publication Date: 2022
    detail.hit.zdb_id: 1458466-9
    SSG: 16,12
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