Results 61 to 70 of about 1,147,771 (298)
Stochastic models of population extinction
, 2010 Theoretical ecologists have long sought to understand how the persistence of populations depends on biotic and abiotic factors. Classical work showed that demographic stochasticity causes the mean time to extinction to increase exponentially with ...
Meerson, Baruch, Ovaskainen, Otso
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Frontiers in Applied Mathematics and StatisticsIn this study, we investigate the issue of estimating the mean vector of a multivariate normal distribution. We introduce two new families of shrinkage estimators derived from both the maximum likelihood estimator and the James-Stein estimator.
Najla M. ALoraini +2 more
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Engenharia Agrícola, 2010 Este trabalho teve como objetivo avaliar a modelagem matemática da precipitação pluviométrica horária por meio do modelo de Bartlett-Lewis modificado com seis parâmetros e sua aplicação para estimativa de eventos extremos.
Álvaro J. Back, Edison Uggioni
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Deterministic Detection of Single Ion Implantation
Advanced Engineering Materials, EarlyView.Focused ion beam implantation with high detection efficiencies will enable the rapid and scalable fabrication of advanced spin‐based technologies such as qubits. This work presents the detection efficiencies of a wide range of ions implanted into solid‐state hosts, with efficiencies of >90% recorded for ion species and substrate combinations of ...
Mason Adshead +6 more
wiley +1 more source
Threshold stochastic unit root models [PDF]
, 2002 This paper introduces a new class of stochastic unit root (STUR) processes, where the randomness of the autorregresive unit root is driven by a threshold variable.
Gonzalo, Jesús, Montesinos, Raquel
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Advanced Engineering Materials, EarlyView.This study reports lightweight polyetherimide triply periodic minimal surfaces lattices coated with carbon nanotube‐reinforced epoxy that combine mechanical robustness with self‐sensing. The conformal coating enhances stiffness, strength and energy absorption while enabling reliable strain monitoring.
A. Triay +3 more
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Critical scaling of stochastic epidemic models
, 2007 In the simple mean-field SIS and SIR epidemic models, infection is transmitted from infectious to susceptible members of a finite population by independent $p-$coin tosses.
Lalley, Steven P.
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Local Linear Regression for Functional Ergodic Data with Missing at Random Responses
MathematicsIn this article, we develop a novel kernel-based estimation framework for functional regression models in the presence of missing responses, with particular emphasis on the Missing At Random (MAR) mechanism.
Yassine Baghli +2 more
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Special Issue on “Terrestrial Laser Scanning”: Editors’ Notes
Sensors, 2019 In this editorial, we provide an overview of the content of the special issue on “Terrestrial Laser Scanning”. The aim of this Special Issue is to bring together innovative developments and applications of terrestrial laser scanning (TLS ...
Joan R. Rosell-Polo +2 more
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Fostering Innovation: Streamlining Magnetocaloric Materials Research by Digitalization
Advanced Engineering Materials, EarlyView.Magnetocaloric cooling (MCE) is an environmentally friendly refrigeration method with great potential. Optimizing MCE materials involves the preparation and screening of large quantities of samples, which in turn generates a large amount of data. A digitalization approach is presented that uses ontologies, knowledge graphs, and digital workflows to ...
Simon Bekemeier +17 more
wiley +1 more source