Results 71 to 80 of about 20,962 (291)
Tailoring Phonon‐Driven Responses in α‐MoO3 through Isotopic Enrichment
Advanced Materials, EarlyView.ABSTRACT The implementation of polaritonic materials into nanoscale devices requires selective tuning of parameters to realize desired spectral or thermal responses. One robust material, α‐MoO3, an orthorhombic crystal boasting three distinct phonon dispersions, provides three polaritonic dispersions of hyperbolic phonon polaritons (HPhPs) across the ...
Thiago S. Arnaud +31 more
wiley +1 more source
Generating Pseudo-Realistic Infrared Observations for Observing System Simulation Experiments
IEEE AccessObserving System Simulation Experiments (OSSEs) are essential for evaluating and designing remote sensing systems using synthetic observations. A key aspect of OSSEs is tuning observation errors, typically by comparing data assimilation (DA) statistics ...
Isaac Moradi, Will McCarty, Nikki Prive
doaj +1 more source
Embedding WFRFT Signals Into TDCS for Secure Communications
IEEE Access, 2018 This paper presents a novel combinatory strategy to embed weighted-type fractional Fourier transform (WFRFT) precoding signals into transform domain communication system (TDCS). The original data can be divided into two parts.
Xinyu Da +6 more
doaj +1 more source
A fourier pseudo-spectral method for the higher-order boussinesq equation
, 2021 The higher-order Boussinesq equation (HBq) is given by utt = uxx+eta1uxxtt-eta2uxxxxtt +(f(u))xx where f(u)=u^p; p>1 is an integer. Here eta1 and eta2 are real positive constants. The HBq equation models the longitudinal vibrations of a dense lattice. In this thesis study, we propose a Fourier pseudo-spectral method for the HBq equation.
openaire +1 more source
On the merging of immersed boundary and pseudo-spectral fourier methodologies for flows with heat transfer [PDF]
, 2012 Paper presented at the 9th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Malta, 16-18 July, 2012.A new numerical methodology combining Fourier pseudo- spectral and immersed boundary methods - IMERSPEC has been developed ...
Mariano, Felipe +3 more
core
Convex Analysis for Minimizing and Learning Submodular Set Functions [PDF]
, 2013 The connections between convexity and submodularity are explored, for purposes of minimizing and learning submodular set functions. First, we develop a novel method for minimizing a particular class of submodular functions, which can be expressed as a
Peter Stobbe, Stobbe, Peter
core +1 more source
Advanced Materials Interfaces, EarlyView.Cornus mas L. seeds are transformed into a high‐performance biosorbent through chemical modification, effectively removing methylene blue from aqueous solutions. Comprehensive characterization and optimization reveal a maximum biosorption capacity of 71.71 mg g−1, establishing this sustainable, cost‐effective material as a promising solution for ...
Hakan Yıldız +2 more
wiley +1 more source
Efficient Numerical Schemes for a Heterogeneous Reaction–Diffusion System with Applications
MathematicsIn this study, a class of nonlinear heterogeneous reaction–diffusion system (RDS) has been considered that arises in modeling epidemiological interactions, environmental sciences, and chemical and ecological systems.
Samima Akhter +3 more
doaj +1 more source
Advanced Materials Technologies, EarlyView.Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu +8 more
wiley +1 more source
Геофизический журнал, 2020 Three dimensional modeling of the wave field makes possible to obtain a concept on distribution of seismic waves in geological medium with different complexity of its structure.
A.O. Verpakhovskaya, V.N. Pilipenko
doaj +1 more source