Results 11 to 20 of about 1,822,010 (290)
Feedback control of unsupported standing in paraplegia. Part I: optimal control approach [PDF]
, 1997 This is the first of a pair of papers which describe an investigation into the feasibility of providing artificial balance to paraplegics using electrical stimulation of the paralyzed muscles. By bracing the body above the shanks, only stimulation of the
Hunt, K.J., Donaldson, N., Munih, M.
core +8 more sources
npj Systems Biology and Applications, 2023 Temperature compensation and robustness to biological noise are two key characteristics of the circadian clock. These features allow the circadian pacemaker to maintain a steady oscillation in a wide range of environmental conditions.
Suchana Chakravarty +2 more
doaj +1 more source
Hysteresis Loop Effect on Intensity for Horizontal and Vertical Polarization by Optical Feedback [PDF]
مجلة جامعة الانبار للعلوم الصرفة, 2020 The effect of optical feedback on hysteresis loop (HL) is investigated. Hysteresis loop occurs between two eigenstates of the He-Ne laser (x , y) and it changes by optical feedback at angles from 0° to 180°.
Ehsan Ali Abed +2 more
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IEEE Photonics Journal, 2020 In the present work, we report a path of RF stabilization versus delay subject to self-mode-locked (SML) two-section quantum-dash (QDash) lasers emitting at ∼1.55 μm and operating at ∼21 GHz repetition rate using a feedback ...
Haroon Asghar, John G. McInerney
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Experimental Gerontology, 2023 Inflammation is believed to play a role in the progression of numerous human diseases. Research has shown that inflammation and telomeres are involved in a feedback regulatory loop: inflammation increases the rate of telomere attrition, leading to ...
Shun Liu +10 more
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Subsystem identification of feedback and feedforward systems with time delay
Results in Control and Optimization, 2020 We present an algorithm for identifying discrete-time feedback-and-feedforward subsystems with time delay that are interconnected in closed loop with a known subsystem.
S. Alireza Seyyed Mousavi +3 more
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HIF1α/VEGF Feedback Loop Contributes to 5-Fluorouracil Resistance
Frontiers in Pharmacology, 2022 5-Fluorouracil (5-Fu) is one of the basic drugs in colorectal cancer (CRC) chemotherapy, and its efficacy is mainly limited by the acquisition of drug resistance. However, the underlying mechanisms remain unclear.
Bin Shi +5 more
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Experimental validation of a predicted feedback loop in the multi-oscillator clock of Arabidopsis thaliana [PDF]
, 2006 Our computational model of the circadian clock comprised the feedback loop between LATE ELONGATED HYPOCOTYL (LHY), CIRCADIAN CLOCK ASSOCIATED 1 (CCA1) and TIMING OF CAB EXPRESSION 1 (TOC1), and a predicted, interlocking feedback loop involving TOC1 and a
Nagy, Ferenc +21 more
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Distributed closed-loop EO-STBC for a time-varying relay channel based on kalman tracking [PDF]
, 2012 This paper considers distributed closed-loop extended orthogonal space-time block coding (EO-STBC) for amplify-forward relaying over time-varying channels.
Weiss, Stephan +2 more
core +3 more sources
Frontiers in Physiology, 2019 Closed-loop models of the interactions between blood pressure (BP) and heart rate variations allow for estimation of baroreflex sensitivity (feedback effects of BP changes on heart rate) while also considering the feedforward effects of heart rate on BP.
Gianfranco Parati +7 more
doaj +1 more source