Results 91 to 100 of about 331,394 (276)

Linear Stochastic Models of Nonlinear Dynamical Systems

open access: yes, 1998
We investigate in this work the validity of linear stochastic models for nonlinear dynamical systems. We exploit as our basic tool a previously proposed Rayleigh-Ritz approximation for the effective action of nonlinear dynamical systems started from ...
B. A. Finlayson   +17 more
core   +2 more sources

Emergent Motility of Self‐Organized Particle‐Giant Unilamellar Vesicle Assembly

open access: yesAdvanced Materials, EarlyView.
Giant unilamellar vesicles (GUVs), when combined with silica particles under alternating electric fields, spontaneously self‐assemble into motile structures. Asymmetric particle decoration induces fluid flows that propel the assemblies, enabling persistent motion and reversible control.
Selcan Karaz   +5 more
wiley   +1 more source

Vacuum statistics and stability in axionic landscapes

open access: yes, 2016
We investigate vacuum statistics and stability in random axionic landscapes. For this purpose we developed an algorithm for a quick evaluation of the tunneling action, which in most cases is accurate within 10%.
Masoumi, Ali, Vilenkin, Alexander
core   +1 more source

Analysis of Gaussian Quadratic Forms with Application to Statistical Channel Modeling

open access: yes, 2019
En esta tesis se presenta una nueva aproximación a la distribución de de formas cuadráticas gaussianas (FCGs) no centrales tanto en variables reales como complejas. Para ello, se propone un nuevo método de análisis de variables aleatorias que, en lugar de centrarse en el estudio de la variable en cuestión, se basa en la caracterización estadística de ...
openaire   +2 more sources

Ultra‐Improved Interfacial Strength Between Metallic Surface and Polyurethane via Cost‐Effective Anodizing Process

open access: yesAdvanced Materials Interfaces, EarlyView.
SAA significantly enhanced Al/PU bonding, increasing SLSS by up to 920% and fracture energy by 15 100% through optimized micro‐nano porous surfaces. RSM identified the optimal anodizing conditions, while ML confirmed sulfuric acid concentration and roughness as dominant predictors of strength.
Umut Bakhbergen   +6 more
wiley   +1 more source

Sensitivity Analysis of Water Flooding Optimization by Dynamic Optimization [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2007
This study concerns the scope to improve water flooding in heterogeneous reservoirs. We used an existing, in-house developed, optimization program consisting of a reservoir simulator in combination with an adjoint-based optimal control algorithm.
Ali Asghar Gharesheiklou   +1 more
doaj  

Variable selection and regression analysis for graph-structured covariates with an application to genomics

open access: yes, 2010
Graphs and networks are common ways of depicting biological information. In biology, many different biological processes are represented by graphs, such as regulatory networks, metabolic pathways and protein--protein interaction networks.
Li, Caiyan, Li, Hongzhe
core   +1 more source

4D Printing of Multimaterial Flexible Magneto‐Active Polymers

open access: yesAdvanced Materials Technologies, EarlyView.
Magneto‐active polymers are 3D‐printed with tunable mechanical and magnetic properties using both superparamagnetic and hard ferromagnetic fillers. Nano‐CT imaging reveals the spatial distribution of particles within the matrix. Programmable magnetization patterns and soft, flexible architectures enable responsive actuation, offering exciting ...
Naji Tarabay   +6 more
wiley   +1 more source

Bootstrap tests for simple structures in nonparametric time series regression. [PDF]

open access: yes
This paper concerns statistical tests for simple structures such as parametric models, lower order models and additivity in a general nonparametric autoregression setting.
Kreiss, Jens-Peter   +2 more
core   +1 more source

Quadratic Projection Based Feature Extraction with Its Application to Biometric Recognition

open access: yes, 2016
This paper presents a novel quadratic projection based feature extraction framework, where a set of quadratic matrices is learned to distinguish each class from all other classes.
Cao, Xiaochun   +4 more
core   +1 more source

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