Results 51 to 60 of about 52,744 (304)

Mixed Balanced Truncation for Reducing the Complexity of Large-Scale Electrical and Electronic System Simulations

International Journal of Technology
This study focuses on Model Order Reduction (MOR) to optimize such systems' simulation and analysis capabilities in the context of increasingly complex electrical and electronic systems, coupled with computational and processing resource limitations ...
Huy-Du Dao, Thanh-Tung Nguyen, Ngoc-Kien Vu, Van-Ta Hoang, Hong-Quang Nguyen   +4 more
doaj   +1 more source

Feedback control of unstable steady states of flow past a flat plate using reduced-order estimators [PDF]

, 2009
We present an estimator-based control design procedure for flow control, using reduced-order models of the governing equations, linearized about a possibly unstable steady state.
C. W. ROWLEY, Lumley, Peskin, Rowley, S. AHUJA, Skogestad, Tuckerman   +6 more
core   +1 more source

Infinite and Finite Time-Frequency Interval Based Variants of Second-Order Balanced Truncation for Stable and Unstable Systems

IEEE Access, 2020
The first half of this manuscript deals with a review of different variants for second-order balanced truncation techniques for stable second-order form systems.
Sadaqat Ali, Rosmiwati Mohd-Mokhtar, Shafiq Khawaja Haider   +2 more
doaj   +1 more source

A New Reduced-Order Implementation of Discrete-Time Fractional-Order PID Controller

IEEE Access, 2022
This paper presents a new method for computationally effective implementation of a discrete-time fractional-order proportional–integral–derivative (FOPID) controller.
Rafal Stanislawski, Marek Rydel, Zhixiong Li   +2 more
doaj   +1 more source

Causal and stable reduced-order model for linear high-frequency systems [PDF]

, 2008
With the ever-growing complexity of high-frequency systems in the electronic industry, formation of reduced-order models of these systems is paramount.
D. Deschrijver, Deschrijver, G. Grahovski, Gugercin, M. Condon, McDaniel   +5 more
core   +1 more source

Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing

FEBS Letters, EarlyView.
Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley   +1 more source

Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions

FEBS Letters, EarlyView.
We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva, Puspa Kunwar, Md Ibnul Rifat Rahman, Joanna Koryo Kwao, Nathan Lehman, Zihan Zhang, Trenton Paul, Claire Cheng, Nicholas Truex, Hui‐Ting Lee, Jun Zhang   +10 more
wiley   +1 more source

Model Reduction of Parametric Differential-Algebraic Systems by Balanced Truncation

Mathematical and Computer Modelling of Dynamical Systems
We deduce a procedure to apply balanced truncation to parameter-dependent differential-algebraic systems. For that we solve multiple projected Lyapunov equations for different parameter values to compute the Gramians that are required for the truncation ...
Jennifer Przybilla, Matthias Voigt
doaj   +1 more source

Balanced truncation for time-delay systems via approximate gramians [PDF]

, 2011
In circuit simulation, when a large RLC network is connected with delay elements, such as transmission lines, the resulting system is a time-delay system (TDS). This paper presents a new model order reduction (MOR) scheme for TDSs with state time delays.
Chen, Q, Wang, Q, Wang, X, Wong, N, Zhang, Z   +4 more
core   +1 more source

Modeling hepatic fibrosis in TP53 knockout iPSC‐derived human liver organoids

Molecular Oncology, EarlyView.
This study developed iPSC‐derived human liver organoids with TP53 gene knockout to model human liver fibrosis. These organoids showed elevated myofibroblast activation, early disease markers, and advanced fibrotic hallmarks. The use of profibrotic differentiation medium further amplified the fibrotic signature seen in the organoids.
Mustafa Karabicici, Soheil Akbari, Ceyda Caliskan, Canan Celiker, Ozden Oz, Leman Binokay, Gökhan Karakulah, Serif Senturk, Esra Erdal   +8 more
wiley   +1 more source