Results 181 to 190 of about 800,939 (248)

Propagation of internal gravity waves: Optimal vertical discretisation and grid design based on numerical error analysis

Quarterly Journal of the Royal Meteorological Society, EarlyView.
An energy‐conserving discrete framework for the vertical discretisation of stratified ocean models is developed using internal gravity‐wave theory. A β$$ \beta $$‐indexed family of schemes is analysed through perturbation theory, revealing optimal parameter choices and grid designs that reduce truncation errors significantly.
Gabriel Derrida, Laurent Debreu, Florian Lemarié, Jérome Chanut   +3 more
wiley   +1 more source

On the Relationship Between Two CUSUM Charts

Quality and Reliability Engineering International, EarlyView.
ABSTRACT The cumulative sum (CUSUM) chart is a fundamental tool in statistical process control (SPC) and sequential change‐point detection. Two closely related formulations appear in the literature: the standard CUSUM introduced by Page in 1954 and the CUSUM studied by Moustakides in 1986, the latter of which is shown to be exactly optimal under Lorden'
Jun Li, Yajun Mei
wiley   +1 more source

Non-Parametric Mediation Analysis of Non-Markov Illness-Death Model. [PDF]

Stat Med
Zhuang LS, Yu JC, Huang YT.
europepmc   +1 more source

A dynamically consistent discrete-time model for monkeypox transmission with implications for quarantine policies. [PDF]

BMC Public Health
Türk K, Gümüş M.
europepmc   +1 more source

Optimal Homogeneous ℒp$$ {\boldsymbol{\mathcal{L}}}_{\boldsymbol{p}} $$‐Gain Controller

International Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT Nonlinear ℋ∞$$ {\mathscr{H}}_{\infty } $$‐controllers are designed for arbitrarily weighted, continuous homogeneous systems with a focus on systems affine in the control input. Based on the homogeneous ℒp$$ {\mathcal{L}}_p $$‐norm, the input–output behavior is quantified in terms of the homogeneous ℒp$$ {\mathcal{L}}_p $$‐gain as a ...
Daipeng Zhang, Benjamin Calmbach, Jaime A. Moreno, Johann Reger   +3 more
wiley   +1 more source

Fourier and microlocal methods for quantum Rabi systems. [PDF]

Ann Univ Ferrara Sez 7 Sci Mat
Malagutti M, Parmeggiani A.
europepmc   +1 more source

Frequency‐Domain Analysis of External Signal Propagation Through Sliding Mode Control Systems With Dynamic Actuators

International Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT The importance of frequency domain methods in analysis and design of sliding mode (SM) control systems is mostly associated with chattering, where the advantages of these methods over state‐space and Lyapunov's methods are quite obvious.
I. M. Boiko
wiley   +1 more source

Statistical Inference for the Entropy of the Transmuted Weibull Distribution Under Progressive Type-II Censored Samples. [PDF]

Entropy (Basel)
Zeng Y, Wu X, Xiao S.
europepmc   +1 more source

Optimal Gain Selection for the Arbitrary‐Order Homogeneous Differentiator

International Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT Differentiation of noisy signals is a relevant and challenging task. Widespread approaches are the linear high‐gain observer acting as a differentiator and Levant's robust exact differentiator with a discontinuous right‐hand side. We consider the family of arbitrary‐order homogeneous differentiators, which includes these special cases.
Benjamin Calmbach, Jaime A. Moreno, Johann Reger   +2 more
wiley   +1 more source

Perinatal psychiatric symptoms and the continuum of breastfeeding in an urban university hospital population. [PDF]

AJOG Glob Rep
Jain S, Abijo T, Powell EW, Dlamini S, Kellogg E, Reeves I.   +5 more
europepmc   +1 more source