نتایج جستجو برای: wake oscillator model

تعداد نتایج: 2145478  

Journal: :Technology and health care : official journal of the European Society for Engineering and Medicine 2017
Jennifer A Williams Diane J Cook

BACKGROUND The goal of this research is to use smart home technology to assist people who are recovering from injuries or coping with disabilities to live independently. OBJECTIVE We introduce an algorithm to model and forecast wake and sleep behaviors that are exhibited by the participant. Furthermore, we propose that sleep behavior is impacted by and can be modeled from wake behavior, and v...

2013

9.1 Harmonic Oscillator 9.1.1 Classical harmonic oscillator and h.o. model 9.1.2 Oscillator Hamiltonian: Position and momentum operators 9.1.3 Position representation 9.1.4 Heisenberg picture 9.1.5 Schrödinger picture 9.2 Uncertainty relationships 9.3 Coherent States 9.3.1 Expansion in terms of number states 9.3.2 Non-Orthogonality 9.3.3 Uncertainty relationships 9.3.4 X-representation 9.4 Phon...

Journal: :Philosophical transactions. Series A, Mathematical, physical, and engineering sciences 2011
Michelle Fleshner Victoria Booth Daniel B Forger Cecilia G Diniz Behn

The dynamics of sleep and wake are strongly linked to the circadian clock. Many models have accurately predicted behaviour resulting from dynamic interactions between these two systems without specifying physiological substrates for these interactions. By contrast, recent experimental work has identified much of the relevant physiology for circadian and sleep-wake regulation, but interaction dy...

2005
ANDREI GREBENNIKOV

of any wireless communications system. Due to their low cost, design simplicity and ease in practical implementation, for example, MOSFET-based oscillators are widely used in modern wireless handset applications. This three-part tutorial highlights the basics of the oscillator circuit design, setting the relationships between the start-up and steadystate operating modes and the device equivalen...

2014
Ben D. Fulcher Andrew J. K. Phillips Svetlana Postnova Peter A. Robinson

The orexinergic neurons of the lateral hypothalamus (Orx) are essential for regulating sleep-wake dynamics, and their loss causes narcolepsy, a disorder characterized by severe instability of sleep and wake states. However, the mechanisms through which Orx stabilize sleep and wake are not well understood. In this work, an explanation of the stabilizing effects of Orx is presented using a quanti...

Journal: :مکانیک سیالات و آیرودینامیک 0
محمدجواد ایزدی یزدی عبدالامیر بک خوشنویس

in this study, the characteristics of the wake around a rotating circular cylinder have been investigated experimentally. to this end, a cylinder with a circular cross-section of plexiglas with the length of 400 mm and a diameter of 20 mm have been tested in the wind tunnel. using existing methods, the characteristics of the wake and the drag coefficients of the model in different cases have be...

2008
Cecilia Diniz Behn

Orexin-producing neurons are clearly essential for the regulation of wakefulness and sleep as loss of these cells produces narcolepsy. However, little is understood about how these neurons dynamically interact with other wakeand sleep-regulatory nuclei to control behavioral states. Using survival analysis of wake bouts in wild type and orexin knockout mice, we found that orexins are necessary f...

2017
Anne C Skeldon Andrew J K Phillips

Phillips-Chen-Robinson (PCR) model The PCR model itself combines two earlier models, one describing switching between sleep and wake states as a result of a drive consisting of homeostatic and circadian components3, and one describing the entrainment of the circadian system by light4. Specifically, sleep and wake states occur as a result of mutual inhibition between sleep promoting and wake pro...

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