Results 131 to 140 of about 9,813 (270)

How Change Recipients Become Rivals: Legitimacy Dynamics and ‘Cooptive Rejection’ in Organizational Change

open access: yesJournal of Management Studies, EarlyView.
Abstract Our study challenges a commonly held assumption in the legitimacy and organizational change literatures: that the legitimacy of a change project is closely tied to, and dependent upon, the legitimacy of the change agent promoting it. Drawing on an in‐depth, three‐and‐a‐half‐year qualitative study of a major transformation within a French ...
Alaric Bourgoin   +2 more
wiley   +1 more source

Nonlinear Waveform Sensing for Cognitive Radar Based on Reinforcement Learning

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Cognitive radar automatically adjusts its waveform via ceaseless interaction with the environment and learning from the experience. Compared with the linear frequency modulation (LFM) that has been commonly adopted in cognitive radars, the nonlinear FM ...
Peikun Zhu   +3 more
doaj   +1 more source

A perspective on automated rapid eye movement sleep assessment

open access: yesJournal of Sleep Research, Volume 34, Issue 2, April 2025.
Summary Rapid eye movement sleep is associated with distinct changes in various biomedical signals that can be easily captured during sleep, lending themselves to automated sleep staging using machine learning systems. Here, we provide a perspective on the critical characteristics of biomedical signals associated with rapid eye movement sleep and how ...
Mathias Baumert, Huy Phan
wiley   +1 more source

Target recognition techniques for multifunction phased array radar

open access: yes, 2010
This thesis, submitted for the degree of Doctor of Philosophy at University College London, is a discussion and analysis of combined stepped-frequency and pulse-Doppler target recognition methods which enable a multifunction phased array radar designed
French, A.
core  

Experimental spectral coexistence investigation for cognitive radar [PDF]

open access: yes, 2017
Cognitive radar offers the prospect of improved performance, or alternatively, the maintenance of existing performance under more challenging conditions, by better utilising the resources the radar system has available to it. This benefit is derived from
Griffiths, HD, Mitchell, AE
core  

iSPHYNCS: Unsupervised Clustering in Questionnaires and Metadata Reveals Distinct Subtypes in the Narcolepsy Borderland

open access: yesJournal of Sleep Research, EarlyView.
Study overview and clustering results in the iSPHYNCS cohort. Participant demographics are summarized in a baseline table. Questionnaire data and metadata were processed through an unsupervised clustering pipeline. A Sankey plot illustrates individual assignment across clusters by diagnostic group.
Rafael Morand   +19 more
wiley   +1 more source

Cognitive kriging metamodels for forest characterization and target detection

open access: yes, 2014
International audienceThe idea of applying the cognitive radar principle to the radar observations of forests is presented. It implies an adaptive design of experiments (DOE) that will allow us to construct probabilistic surrogate models with a known ...
Piteros, Panagiotis   +7 more
core   +1 more source

From Language Teachers to Mentors to Language Teacher Educators: Negotiating Personal Pedagogies, Power, and Mentorship Identity

open access: yesThe Modern Language Journal, EarlyView.
ABSTRACT Although school‐based mentors perform core language teacher educator functions, such as modelling pedagogy, scaffolding professional learning, and mediating between theory and practice, they remain largely absent from the literature on language teacher educator identity.
David Gerlach
wiley   +1 more source

Joint waveform design and resource allocation strategy for cognitive radar target situation awareness

open access: yesIET Radar, Sonar & Navigation
Traditional radar systems use fixed patterns and constant electromagnetic wave transmission to illuminate targets, but they often do not effectively use prior information about targets and consume significant radar resources.
Yuxiao Song   +4 more
doaj   +1 more source

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