Results 21 to 30 of about 5,098,360 (254)
Recherches Sociologiques et Anthropologiques, 2013 The goal of this article is to show how, from a simple concept, “active ageing” was gradually transformed into an international frame of reference in public policies on the subject of ageing.
Thibauld Moulaert +1 more
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Reduced Reference Frame Transformation Assessment in Unbalanced Three-Phase Four-Wire Systems
IEEE Access, 2023 Three-phase four-wire systems require a reference frame similar to that used in 3-phase 3-wire system configurations that allow them to be easily analysed, modelled and controlled.
Francisco Casado-Machado +3 more
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A Unified Global Reference Frame of Vertical Crustal Movements by Satellite Laser Ranging
Sensors, 2016 Crustal movement is one of the main factors influencing the change of the Earth system, especially in its vertical direction, which affects people’s daily life through the frequent occurrence of earthquakes, geological disasters, and so on.
Xinhui Zhu +3 more
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Blazars define a stable celestial reference frame
Astronomy & AstrophysicsContext. Recent work has shown that optical-radio position offsets and radio position variability are inversely correlated with the optical photometric variability of active galactic nuclei (AGN).
Secrest N. J., Lambert S.
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Frontiers in Human Neuroscience, 2015 Several studies have demonstrated a dissociation of the effects of illusion on perception and action, with perception generally reported to be susceptible to illusions, while actions are seemingly immune.
Paul eDassonville, Scott Allan Reed
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Adaptive training‐feedback scheme for FDD in massive MIMO systems
IET Communications, 2023 Accurate acquisition of channel state information (CSI) is crucial but difficult in frequency division duplex (FDD) massive multiple‐input multiple‐output (MIMO) systems.
Yi Huang +3 more
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The Celestial Reference Frame at K Band: Imaging. I. The First 28 Epochs
, 2023 We present K -band (24 GHz) images of 731 compact extragalactic radio sources with submilliarcsecond resolution, based on radio interferometric observations made with the Very Long Baseline Array of 10 telescopes during 29 day long sessions spanning from
K-band Celestial Reference Frame Collaboration +6 more
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Concept of spatial coordinate systems, their defining and implementation as a precondition in geospatial applications [PDF]
Glasnik Srpskog Geografskog Društva, 2015 There are many users of spatial information, and quite large interest about the nature and genesis of such information. Different users found spatial information in the form of maps, plans or alphanumerical tables. Recently, there are more often
Nedeljković Zoran, Sekulić Aleksandar
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Characterizing the Dynamic Response of a Chassis Frame in a Heavy-Duty Dump Vehicle based on an Improved Stochastic System Identification [PDF]
, 2015 This paper presents an online method for the assessment of the dynamic performance of the chassis frame in a heavy-duty dump truck based on a novel stochastic subspace identification (SSI) method. It introduces the use of an average correlation signal as
Chen, Zhi +3 more
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, 2018 Measurement-device-independent quantum key distribution (MDI-QKD) is proved to be able to eliminate all potential detector side channel attacks. Combining with the reference frame independent (RFI) scheme, the complexity of practical system can be ...
Shihai Sun (16498914) +3 more
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