Results 41 to 50 of about 808,221 (264)

Control system design of mechanical systems with time varying mechanical and control parameters

Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2014
A new control framework of motion and/or vibration control system design for mechanical systems with a time varying mechanical and control parameters is studied. As examples of such time varying mechanical and control parameters, we can assume a variable
Kazuhiko HIRAMOTO
doaj   +1 more source

Prognosis of Long‐Term Continuous Renal Replacement Therapy and the Impact of Combined Continuous Intravenous Sodium Infusion Therapy

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Patients requiring long‐term continuous renal replacement therapy (CRRT) generally have poor prognoses. This study evaluated whether adding continuous intravenous sodium infusion (cIVNa) is associated with improved hemodynamics and outcomes in patients undergoing long‐term CRRT for ≥ 7 days.
Akinori Yamaguchi, Atsuyoshi Mita, Kosuke Sonoda, Makoto Harada, Koji Hashimoto, Hiroshi Imamura, Yuji Kamijo   +6 more
wiley   +1 more source

Online Optimization With Unknown Time-Varying Parameters

IEEE Control Systems Letters
In this paper, we study optimization problems where the cost function contains time-varying parameters that are unmeasurable and evolve according to linear, yet unknown, dynamics. We propose a solution that leverages control theoretic tools to identify the dynamics of the parameters, predict their evolution, and ultimately compute a solution to the ...
Shivanshu Tripathi, Abed AlRahman Al Makdah, Fabio Pasqualetti   +2 more
openaire   +2 more sources

Comparing hybrid time-varying parameter VARs [PDF]

Economics Letters, 2018
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Chan, Joshua C.C., Eisenstat, Eric
openaire   +5 more sources

Adaptive Estimation of Time-Varying Parameters Using DREM

2023 62nd IEEE Conference on Decision and Control (CDC), 2023
In this paper we present a method for estimating time-varying parameters in a linear regression equation. We combine local polynomial regression with dynamic regressor extension and mixing to independently estimate the parameters. During local polynomial regression, a time-varying parameter is approximated by locally constant polynomial coefficients ...
Emil Lykke Diget, Christoffer Sloth
openaire   +2 more sources

Finite-Time Trajectory Tracking Control for Switched Robots Based on a Time-Varying Sliding Manifold

IEEE Access
This paper investigates the trajectory tracking control problem for robots with time-varying parameters and model switching. A finite-time control scheme based on a time-varying nonsingular terminal sliding manifold is proposed.
Guopei Chen, Ying Yang
doaj   +1 more source

Study on reservoir time-varying design flood of inflow based on Poisson process with time-dependent parameters [PDF]

Proceedings of the International Association of Hydrological Sciences, 2018
The time-varying design flood can make full use of the measured data, which can provide the reservoir with the basis of both flood control and operation scheduling.
J. Li, J. Huang, J. Li
doaj   +1 more source

Establishing an Apheresis Medicine Program in a Resource‐Constrained Setting: A 5‐Year Experience From Lagos, Nigeria

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Establishing a comprehensive apheresis medicine program in a resource‐constrained setting presents significant structural, financial, and logistical challenges. Despite the growing clinical importance of apheresis services globally, published experience from sub‐Saharan Africa remains sparse.
Folasade Adelekan‐Popoola, Shakirat Gold‐Olufadi, Olufunto Olufela Kalejaiye, Abdullateef Ogala, Rasheed A. Balogun   +4 more
wiley   +1 more source

Serum Myonectin Levels Are Positively Associated With Physical Function and Lower Frailty‐Related Limitation in Maintenance Hemodialysis Patients: A Cross‐Sectional Study

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Maintenance hemodialysis (MHD) patients frequently suffer from frailty, characterized by reduced physical function and poor prognosis. Myokines, such as myonectin, secreted by muscle, are emerging regulators of systemic health. This study investigated the relationship between serum myonectin, adipokines (adiponectin, omentin), and ...
Kenichi Kono, Yoshifumi Moriyama, Koji Ohashi, Naoya Otaka, Minako Tatsumi, Toyoaki Murohara, Noriyuki Ouchi, Satoru Oshima   +7 more
wiley   +1 more source

Zeroing Neural Network With Novel Arctan Activation Function and Parameter-Varying Dual Integral Structure for Solving Time-Varying Lyapunov Equations

IEEE Access
The time-varying Lyapunov equation plays a central role in the stability analysis and control of dynamic systems across various fields. Traditional methods for dealing with time-varying Lyapunov equations often face challenges such as slow convergence ...
Jiawen Huang, Yiming Yan
doaj   +1 more source