Results 91 to 100 of about 4,609,707 (346)

Feedback stabilization of semilinear heat equations

open access: yesAbstract and Applied Analysis, 2003
This paper is concerned with the internal and boundary stabilization of the steady-state solutions to quasilinear heat equations via internal linear feedback controllers provided by an LQ control problem associated with the linearized equation.
V. Barbu, G. Wang
doaj   +1 more source

A Randomly Guided Firefly Algorithm Based on Elitist Strategy and its Applications

open access: yesIEEE Access, 2019
Firefly algorithm (FA) is one of the swarm intelligence algorithms, which is proposed by Yang in 2008. The standard FA has some disadvantages, such as high computational time complexity, slow convergence speed and so on.
Chunfeng Wang, Kui Liu
doaj   +1 more source

Optimal, near-optimal, and robust epidemic control

open access: yesCommunications Physics, 2021
The COVID-19 pandemic has demonstrated the need for non-pharmaceutical epidemic mitigation strategies that can be effective even if they are limited in duration.
Dylan H. Morris   +3 more
doaj   +1 more source

Optimal pricing in ride-share platforms

open access: yesCogent Engineering, 2023
Ride-share platforms are contemporary businesses that match passengers with drivers, unlike taxis that can be hailed from the street. In the literature, the problem of optimizing the operations of such companies is mostly considered in static settings ...
Sobhi Mejjaouli, Lotfi Tadj
doaj   +1 more source

Polynomial mechanics and optimal control

open access: yes, 2015
We describe a new algorithm for trajectory optimization of mechanical systems. Our method combines pseudo-spectral methods for function approximation with variational discretization schemes that exactly preserve conserved mechanical quantities such as ...
Srinivasan, Akshay   +1 more
core   +1 more source

Optimal control, geometry, and quantum computing [PDF]

open access: yes, 2006
We prove upper and lower bounds relating the quantum gate complexity of a unitary operation, U, to the optimal control cost associated to the synthesis of U.
Andrew C. Doherty   +11 more
core   +2 more sources

The apo LETM1 F‐EF‐hand adopts a closed conformation that underlies a multi‐modal sensory role in mitochondria

open access: yesFEBS Letters, Volume 599, Issue 7, Page 971-988, April 2025.
We present the first solution structure of the Ca2+‐depleted LETM1 F‐EF‐hand through a D676A/N678A Ca2+ binding‐deficient mutant, revealing a closed hydrophobic cleft caused by a unique F1‐helix pivot. The apo LETM1 F‐EF‐hand exhibits regiospecific hot and cold unfolding, sensitivity to physiological pH changes and potential for promiscuous heterotypic
Qi‐Tong Lin   +2 more
wiley   +1 more source

Global static stability and its relation to gravity waves in the middle atmosphere

open access: yesEarth and Planetary Physics, 2020
The global atmospheric static stability (N2) in the middle atmosphere and its relation to gravity waves (GWs) were investigated by using the temperature profiles measured by the Sounding of the Atmosphere using Broadband Emission Radiometry (SABER ...
Xiao Liu, JiYao Xu, Jia Yue
doaj   +1 more source

Optimal inventory management and order book modeling * [PDF]

open access: yesESAIM: Proceedings and Surveys, 2019
We model the behavior of three agent classes acting dynamically in a limit order book of a financial asset. Namely, we consider market makers (MM), high-frequency trading (HFT) firms, and institutional brokers (IB).
Baradel Nicolas   +3 more
doaj   +1 more source

Insertion of the FeB cofactor in cNORs lacking metal inserting chaperones

open access: yesFEBS Letters, Volume 599, Issue 9, Page 1269-1284, May 2025.
Nitric oxide reductase is an enzyme found in the bacterial denitrification pathway. The NOR active site contains a non‐heme iron, often, but not always inserted with the assistance of chaperones. Here, we study the insertion of FeB in the subfamily of cNORs lacking chaperones and found a putative channel, conserved in the family, perhaps enabling the ...
Sofia Appelgren, Pia Ädelroth
wiley   +1 more source

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