Results 21 to 30 of about 534,688 (347)

closed loop

, 2021
Une boucle fermée peut être obtenue par superposition linéaire des deux extrémités libres d'une boucle ouverte. Sa principale propriété est la double dégénérescence de ses états. Les expressions analytiques de ses valeurs propres, de ses fonctions propres et de sa fonction de réponse sont présentées.
L. Dobrzyński, Housni Al Wahsh, Abdellatif Akjouj, El Houssaine El Boudouti, Cécile Ghouila-Houri, Abdelkrim Talbi, Gaëtan Lévêque, Bahram Djafari‐Rouhani   +7 more
openaire   +2 more sources

A Systematic Review of Closed-Loop Feedback Techniques in Sleep Studies—Related Issues and Future Directions

Sensors, 2020
Advances in computer processing technology have enabled researchers to analyze real-time brain activity and build real-time closed-loop paradigms. In many fields, the effectiveness of these closed-loop protocols has proven to be better than that of the ...
Jinyoung Choi, Moonyoung Kwon, Sung Chan Jun   +2 more
doaj   +1 more source

Transcranial ultrasound stimulation at the peak-phase of theta-cycles in the hippocampus improve memory performance

NeuroImage, 2023
The present study aimed to investigate the effectiveness of closed-loop transcranial ultrasound stimulation (closed-loop TUS) as a non-invasive, high temporal-spatial resolution method for modulating brain function to enhance memory. For this purpose, we
Zhenyu Xie, Shuxun Dong, Yiyao Zhang, Yi Yuan   +3 more
doaj   +1 more source

Learning Lipschitz Feedback Policies From Expert Demonstrations: Closed-Loop Guarantees, Robustness and Generalization

IEEE Open Journal of Control Systems, 2022
In this work, we propose a framework in which we use a Lipschitz-constrained loss minimization scheme to learn feedback control policies with guarantees on closed-loop stability, adversarial robustness, and generalization.
Abed AlRahman Al Makdah, Vishaal Krishnan, Fabio Pasqualetti   +2 more
doaj   +1 more source

On Validating Closed-Loop Behaviour from Noisy Frequency-Response Measurements [PDF]

, 2005
It is shown how noisy closed-loop frequency-response measurements can be used to obtain pointwise in frequency bounds on the possible difference between the actual closed-loop system and the closed-loop comprising a nominal model of the plant and the ...
Bombois, Bombois, Cantoni, Chen, Date, Date, Georgiou, Goh, Iwasaki, Kanev, Khargonekar, McFarlane, Michael Cantoni, Paresh Date, Tuan, van den Hof, Vinnicombe, Vinnicombe, Zhou   +18 more
core   +1 more source

A fully artificial pancreas versus a hybrid artificial pancreas for type 1 diabetes: a single-centre, open-label, randomised controlled, crossover, non-inferiority trial

The Lancet: Digital Health, 2021
Summary: Background: For people with type 1 diabetes, there is currently no automated insulin delivery system that does not require meal input. We aimed to assess the efficacy of a novel faster-acting insulin aspart (Fiasp) plus pramlintide fully closed-
Michael A Tsoukas, MD, Dorsa Majdpour, Meng, Jean-François Yale, MD, Anas El Fathi, PhD, Natasha Garfield, MD, Joanna Rutkowski, Eng, Jennifer Rene, RN, Laurent Legault, MD, Ahmad Haidar, PhD   +8 more
doaj   +1 more source

Directions of Deep Brain Stimulation for Epilepsy and Parkinson’s Disease

Frontiers in Neuroscience, 2021
BackgroundDeep brain stimulation (DBS) is an effective treatment for movement disorders and neurological/psychiatric disorders. DBS has been approved for the control of Parkinson disease (PD) and epilepsy.ObjectivesA systematic review and possible future
Ying-Chang Wu, Ying-Siou Liao, Wen-Hsiu Yeh, Sheng-Fu Liang, Sheng-Fu Liang, Fu-Zen Shaw, Fu-Zen Shaw   +6 more
doaj   +1 more source

Closed-loop control better than open-loop control of profofol TCI guided by BIS: a randomized, controlled, multicenter clinical trial to evaluate the CONCERT-CL closed-loop system.

PLoS ONE, 2015
BackgroundThe CONCERT-CL closed-loop infusion system designed by VERYARK Technology Co., Ltd. (Guangxi, China) is an innovation using TCI combined with closed-loop controlled intravenous anesthesia under the guide of BIS.
Yu Liu, Min Li, Dong Yang, Xuena Zhang, Anshi Wu, Shanglong Yao, Zhanggang Xue, Yun Yue   +7 more
doaj   +1 more source

Cambridge hybrid closed-loop algorithm in children and adolescents with type 1 diabetes: a multicentre 6-month randomised controlled trial

The Lancet: Digital Health, 2022
Summary: Background: Closed-loop insulin delivery systems have the potential to address suboptimal glucose control in children and adolescents with type 1 diabetes. We compared safety and efficacy of the Cambridge hybrid closed-loop algorithm with usual
Julia Ware, MD, Charlotte K Boughton, PhD, Janet M Allen, RN, Malgorzata E Wilinska, PhD, Martin Tauschmann, PhD, Louise Denvir, MD, Ajay Thankamony, MPhil, Fiona M Campbell, MD, R Paul Wadwa, ProfMD, Bruce A Buckingham, ProfMD, Nikki Davis, MD, Linda A DiMeglio, ProfMD, Nelly Mauras, MD, Rachel E J Besser, PhD, Atrayee Ghatak, MD, Stuart A Weinzimer, ProfMD, Korey K Hood, ProfPhD, D Steven Fox, MD, Lauren Kanapka, MSc, Craig Kollman, PhD, Judy Sibayan, MPH, Roy W Beck, PhD, Roman Hovorka, ProfPhD, R Hovorka, C L Acerini, A Thankamony, J M Allen, C K Boughton, K Dovc, D B Dunger, J Ware, G Musolino, M Tauschmann, M E Wilinska, J F Hayes, S Hartnell, S Slegtenhorst, Y Ruan, M Haydock, J Mangat, L Denvir, SK Kanthagnany, J Law, T Randell, P Sachdev, M Saxton, A Coupe, S Stafford, A Ball, R Keeton, R Cresswell, L Crate, H Cripps, H Fazackerley, L Looby, H Navarra, C Saddington, V Smith, V Verhoeven, S Bratt, N Khan, L Moyes, K Sandhu, C West, R P Wadwa, G Alonso, G Forlenza, R Slover, L Towers, C Berget, A Coakley, E Escobar, E Jost, S Lange, L Messer, K Thivener, F M Campbell, J Yong, E Metcalfe, M Allen, S Ambler, S Waheed, J Exall, J Tulip, B A Buckingham, L Ekhlaspour, D Maahs, L Norlander, T Jacobson, M Twon, C Weir, B Leverenz, J Keller, N Davis, A Kumaran, N Trevelyan, H Dewar, G Price, G Crouch, R Ensom, L Haskell, LM Lueddeke, N Mauras, M Benson, K Bird, K Englert, J Permuy, K Ponthieux, J Marrero-Hernandez, L A DiMeglio, H Ismail, H Jolivette, J Sanchez, S Woerner, M Kirchner, M Mullen, M Tebbe, R EJ Besser, S Basu, R London, T Makaya, F Ryan, C Megson, J Bowen-Morris, J Haest, R Law, I Stamford, A Ghatak, M Deakin, K Phelan, K Thornborough, J Shakeshaft, S A Weinzimer, E Cengiz, J L Sherr, M Van Name, K Weyman, L Carria, A Steffen, M Zgorski, J Sibayan, R W Beck, S Borgman, J Davis, J Rusnak, A Hellman, P Cheng, L Kanapka, C Kollman, C McCarthy, S Chalasani, K K Hood, S Hanes, J Viana, M Lanning, D S Fox, G Arreaza-Rubin, T Eggerman, N Green, R Janicek, D Gabrielson, S H Belle, J Castle, J Green, L Legault, S M Willi, C Wysham   +166 more
doaj   +1 more source

Mechanical-Thermal Noise in Drive-Mode of a Silicon Micro-Gyroscope

Sensors, 2009
A new closed-loop drive scheme which decouples the phase and the gain of the closed-loop driving system was designed in a Silicon Micro-Gyroscope (SMG).
Bailing Zhou, Hongsheng Li, Shourong Wang, Bo Yang   +3 more
doaj   +1 more source