Results 61 to 70 of about 764,789 (277)

Adaptive Path Guidance Law for a Small Fixed-Wing UAS with Bounded Bank Angle

open access: yesDrones
This study deals with the path-following guidance of a fixed-wing unmanned aerial system (UAS) in conjunction with parameter adaptation. Utilizing a backstepping control design approach, a path-following control algorithm is formulated for the roll ...
Suhyeon Kim, Dongwon Jung
doaj   +1 more source

Adaptation of Population Size in Sine Cosine Algorithm

open access: yesIEEE Access, 2021
Sine Cosine Algorithm (SCA) is a newly proposed competent population-based metaheuristic, which has gained a multi-disciplinary interest in solving optimization problems.
Hala R. Al-Faisal   +3 more
doaj   +1 more source

Parameter Constrained Adaptive Control

open access: yesIFAC Proceedings Volumes, 1993
Abstract Optimally constrained identification for adaptive control can dramatically improve transient controller performance, especially when combined with techniques that selectively adjust adaptation gain. In this paper, a real-time identifier that optimally imposes linear constraints is developed, linear constraints that encode common information ...
W.D. Timmons   +3 more
openaire   +1 more source

Statistical Inference for Data Adaptive Target Parameters [PDF]

open access: yesThe International Journal of Biostatistics, 2016
Abstract Consider one observes n i.i.d. copies of a random variable with a probability distribution that is known to be an element of a particular statistical model. In order to define our statistical target we partition the sample in V equal size sub-samples, and use this partitioning to define V splits in an estimation sample (one of the V subsamples)
Hubbard, Alan E   +2 more
openaire   +5 more sources

Predicting the Future Burden of Renal Replacement Therapy in Türkiye Using National Registry Data and Comparative Modeling Approaches

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Chronic kidney disease is a growing public health problem worldwide, and the number of patients requiring renal replacement therapy is steadily increasing. Türkiye has experienced a similar rise in both the incidence and prevalence of renal replacement therapy over the past decades; however, national‐level projections of future ...
Arzu Akgül   +2 more
wiley   +1 more source

Online Tracking Parameter Adaptation based on Evaluation [PDF]

open access: yes, 2013
Parameter tuning is a common issue for many tracking algorithms. In order to solve this problem, this paper proposes an online parameter tuning to adapt a tracking algorithm to various scene contexts.
Badie, Julien   +3 more
core   +3 more sources

On Rigidity of Generalized Conformal Structures [PDF]

open access: yes, 2017
The classical Liouville Theorem on conformal transformations determines local conformal transformations on the Euclidean space of dimension $\geq 3$. Its natural adaptation to the general framework of Riemannian structures is the 2-rigidity of conformal ...
Bekkara, Samir, Zeghib, Abdelghani
core   +3 more sources

By dawn or dusk—how circadian timing rewrites bacterial infection outcomes

open access: yesFEBS Letters, EarlyView.
The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo   +2 more
wiley   +1 more source

Polygenic adaptation: From sweeps to subtle frequency shifts. [PDF]

open access: yesPLoS Genetics, 2019
Evolutionary theory has produced two conflicting paradigms for the adaptation of a polygenic trait. While population genetics views adaptation as a sequence of selective sweeps at single loci underlying the trait, quantitative genetics posits a ...
Ilse Höllinger   +2 more
doaj   +1 more source

Molecular bases of circadian magnesium rhythms across eukaryotes

open access: yesFEBS Letters, EarlyView.
Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley   +1 more source

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