Results 71 to 80 of about 10,141,921 (243)
Quasicrystals and Other Aperiodic Structures in Mineralogy
Crystals, 2016 In this article, we first present and discuss eighteenth-century descriptions of minerals that contributed decisively to the development of crystallography.
Carlos M. Pina, Victoria López-Acevedo
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Journal of Applied Polymer Science, EarlyView.Phase‐separation microstructure and mechanical properties of a ternary biocomposite evaluated by integrated AFM, AFM‐informed FEM, and in situ X‐ray CT. ABSTRACT This study investigates phase‐separated cellulose filler/poly(lactic acid) (PLA)/elastomer ternary composites to enhance the mechanical performance of bioplastics. Atomic force microscopy (AFM)
Yoshiaki Kawagoe +8 more
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Aperiodic Order and Singular Spectra
, 2022 This work focuses on several models of aperiodic order and their applications in different areas of mathematics and mathematical physics. After a short introduction to the theory of dynamicals systems, we present random substitutions as a stochastic variant of substitutions which create symbolic dynamical systems that combine long-range order with a ...
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Dynamics of Periodic Waves in a Neural Field Model
Mathematics, 2020 Periodic traveling waves are observed in various brain activities, including visual, motor, language, sleep, and so on. There are several neural field models describing periodic waves assuming nonlocal interaction, and possibly, inhibition, time delay or
Nikolai Bessonov +3 more
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Advanced Physics Research, EarlyView.This paper proposes an integrated active light‐controlled frequency coding metasurface and a software‐defined array control system. Utilizing spatially encoded structured light and a “Decision‐Optimization‐Execution” intelligent closed‐loop architecture, the system overcomes traditional electrical control interference, achieves real‐time dynamic ...
Chao Zhao +7 more
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Optimized Multilayer Structures With Ultrabroadband Near-Perfect Absorption
IEEE Photonics Journal, 2020 We present aperiodic multilayer structures with ultrabroadband near-perfect absorption in the visible and near-infrared wavelength range. We use a hybrid optimization algorithm coupled with the transfer-matrix method, to optimize both the material ...
Chenglong You +4 more
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A Crystallographic Shear Driven by Oxygen Insertion in (LuFeO3)nLuFe2O4
ChemistryEurope, EarlyView.Layered structures (LuFeO3)nLuFe2O4 exhibit a common structural transformation upon oxygen uptake. Although the LuFeO3 units do not directly participate in oxygen insertion, these inactive layers nevertheless influence the temperature at which oxygen absorption occurs.
Tianyu Li +7 more
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Nonlinear Active Site Dynamic Behavior Over In Situ Generated Working Zeolites
Chemie Ingenieur Technik, EarlyView.The methoxymethyl mechanism over α, β, and γ site ensembles and the dynamic site‐interconversion mechanism reduce the induction period of propylene formation. The methoxymethyl mechanism acts on site ensemble α generating surface methoxy species (SMS), which, through the dynamic site‐interconversion mechanism, lead to SMS on site ensembles β and γ that
Toyin Omojola
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Formation-Containment Control of Second-Order Multiagent Systems via Intermittent Communication
Complexity, 2018 This paper investigates the formation-containment control of second-order multiagent systems with intermittent communication. Distributed coordination control algorithms are proposed under aperiodic intermittent communication, where each agent only ...
Mao-Dong Xia, Cheng-Lin Liu, Fei Liu
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Applied Sciences, 2018 We demonstrate a compact blue and orange-two color continuous wave laser source emitting at 487 nm and from 597.4 to 600.3 nm, respectively. The temperature tunable coherent orange radiation is achieved by frequency mixing 974 nm laser diode (LD) and a C-
Dismas K. Choge +5 more
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