Results 91 to 100 of about 23,327,589 (260)

On polytopic approximations of systems with time-varying input delays [PDF]

open access: yes, 2009
Networked control systems (NCS) have recently received an increasing attention from the control systems community. One of the major problems in NCS is how to model the highly nonlinear terms caused by uncertain delays such as time-varying input delays. A
Olaru, S.   +5 more
core   +1 more source

Organizing the interface—Plasma membrane architecture and receptor dynamics in virus‐cell interactions

open access: yesFEBS Letters, EarlyView.
Plasma membranes contain dynamic nanoscale domains that organize lipids and receptors. Because viruses operate at similar scales, this architecture shapes early infection steps, including attachment, receptor engagement, and entry. Using influenza A virus and HIV‐1 as examples, we highlight how receptor nanoclusters, multivalent glycan interactions ...
Jan Schlegel, Christian Sieben
wiley   +1 more source

Observer‐Based Coupling‐Coordinated Adaptive Hierarchical Sliding Mode Control for Underactuated Nonlinear Systems

open access: yesThe Journal of Engineering
This paper proposes an observer‐based coupling‐coordinated adaptive hierarchical sliding mode control (CCAHSMC‐LSMO) framework for underactuated nonlinear systems. Addressing limitations in conventional methods, the design explicitly incorporates natural
Marzieh Ahmadi, Alireza Faraji
doaj   +1 more source

Finite-time stability of linear non-autonomous systems with time-varying delays

open access: yesAdvances in Difference Equations, 2018
In this paper, we investigate the problem of finite-time stability (FTS) of linear non-autonomous systems with time-varying delays. By constructing an appropriated function, we derive some explicit conditions in terms of matrix inequalities ensuring that
Xueyan Yang, Xiaodi Li
doaj   +1 more source

A Time-Varying Generalised Minimum Variance Controller

open access: yes, 2008
:- A generalised minimum variance controller is developed for linear time-varying systems. The plants to be controlled are described using a controlled autoregressive moving average model and are exponentially stable.
Z. Li   +7 more
core  

Balanced truncation model reduction of periodic systems [PDF]

open access: yes, 2000
The balanced truncation approach to model reduction is considered for linear discrete-time periodic systems with time-varying dimensions. Stability of the reduced model is proved and a guaranteed additive bound is derived for the approximation error ...
Varga, Andras
core  

Biophysical approaches for studying viral entry

open access: yesFEBS Letters, EarlyView.
Viruses infect all living organisms and have been responsible for major epidemics and pandemics. Their ongoing evolutionary battle with host defenses creates a constant need for improved tools to study viral behavior. Advancing methods to probe viral attachment, fusion, and genome release deepen our understanding of how infections begin and support the
Inbar Yosibash, Raya Sorkin
wiley   +1 more source

Generalized predictive control for space teleoperation systems with long time-varying delays

open access: yes, 2012
Prior researches of generalized predictive control (GPC) in teleoperation systems have mainly considered short transmitted time delays or single degree of freedom (DOF) manipulators of master and slave.
Hua JN(化建宁)   +3 more
core  

The human gut microbiome across the life course

open access: yesFEBS Letters, EarlyView.
Despite significant individual variation and continuous change throughout life, the human gut microbiome follows some life stage‐specific trends. This article provides a brief overview of how gut microbiome composition shifts across different phases of life. Created in BioRender. Özkurt, E. (2026) https://BioRender.com/8q4nrnc.
Alise J. Ponsero   +4 more
wiley   +1 more source

A method for calculating the time‐varying equivalent circuit parameters of large‐capacity synchronous condenser considering field mutual leakage reactance

open access: yesIET Electric Power Applications
Accurate calculation of equivalent circuit parameters is a prerequisite for accurately calculating the large‐capacity synchronous condenser parameter model.
Xiao Han   +3 more
doaj   +1 more source

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