Results 31 to 40 of about 21,348 (275)

Field Report from Collaborative Research Center 1625: Heterogeneous Research Data Management Using Ontology Representations

open access: yesAdvanced Engineering Materials, EarlyView.
A unified research data management framework for heterogeneous materials data is presented. The system integrates multimodal datasets using ontologies and knowledge graphs, enabling interoperability and FAIR (findable, accessible, interoperable, reusable) data principles. By linking data across scales and workflows, it supports reproducible, Artifitial
Doaa Mohamed   +6 more
wiley   +1 more source

Adaptive neural tracking control for near-space vehicles with stochastic disturbances

open access: yesInternational Journal of Advanced Robotic Systems, 2017
In this article, an adaptive neural tracking controller is designed for near-space vehicles with stochastic disturbances and unknown parametric uncertainties.
Xiaohui Yan   +3 more
doaj   +1 more source

Fuzzy adaptive nonlinear stochastic control for vehicle suspension with electromagnetic actuator

open access: yesMeasurement + Control, 2020
This work solves the stability problem of a vehicle suspension with stochastic disturbance by designing an adaptive controller. The model of a quarter vehicle subjected to noise excitation is considered.
Feng Cao, Yongming Li
doaj   +1 more source

Adaptive Robust Control for a Class of Stochastic Nonlinear Uncertain Systems

open access: yesIEEE Access, 2020
This paper is concerned with the control design for a class of stochastic nonlinear systems. Three uncertainties are considered; that is, nonlinear parameter uncertainty, matched uncertainty and stochastic disturbance.
Guifang Li, Yong Tian, Ye-Hwa Chen
doaj   +1 more source

Stability and Optimal Control of a Fractional SEQIR Epidemic Model with Saturated Incidence Rate

open access: yesFractal and Fractional, 2023
The fractional differential equation has a memory property and is suitable for biomathematical modeling. In this paper, a fractional SEQIR epidemic model with saturated incidence and vaccination is constructed.
Deguo Sun, Qing Li, Wencai Zhao
doaj   +1 more source

Fostering Innovation: Streamlining Magnetocaloric Materials Research by Digitalization

open access: yesAdvanced 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

The stochastic stability and H∞‐fuzzy control of stochastic bifurcation of a doubly‐fed induction generator

open access: yesEnergy Science & Engineering
Considering the dynamic behavior of doubly‐fed induction generators (DFIGs) under the influence of random factors, this paper not only analyzes the phenomenon of stochastic instability and bifurcation of a DFIG dynamic variable in its random space when ...
Wei Chen   +3 more
doaj   +1 more source

About Some Unsolved Problems in the Stability Theory of Stochastic Differential and Difference Equations

open access: yesAxioms
This paper continues a series of papers by the author devoted to unsolved problems in the theory of stability and optimal control for stochastic systems.
Leonid Shaikhet
doaj   +1 more source

Designing Polymer Nanocomposites for X‐Ray Shielding: Mechanisms, Architectures, and Scalable Processing

open access: yesAdvanced Engineering Materials, EarlyView.
This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele   +2 more
wiley   +1 more source

Asymptotic behaviours of stochastic differential delay equations

open access: yes, 2005
Most of the existing results on stochastic stability use a single Lyapunov function, but we shall instead use multiple Lyapunov functions in this paper.
Shen, Yi   +3 more
core   +1 more source

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