Results 61 to 70 of about 16,772 (314)
A new nonlinear fractal vibration of the Euler–Bernoulli beams in a microgravity space
Journal of Low Frequency Noise, Vibration and Active Control, 2023 Microgravity is an extreme physical environment, where many theories deduced on the earth’s surface become invalid. So a fractal vibration of Euler–Bernoulli beams in a microgravity space is presented in this paper via He’s fractal derivative.
Pei-Ling Zhang, Kang-Jia Wang
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On Fractal Features and Fractal Linear Space About Fractal Continuous Functions
, 2021 This paper investigates fractal dimension of linear combination of fractal continuous functions with the same or different fractal dimensions. It has been proved that: (1) $BV_{I}$ all fractal continuous functions with bounded variation is fractal linear space; (2) ${}^{1}D_{I}$ all fractal continuous functions with Box dimension one is a fractal ...
openaire +2 more sources
Advanced Science, EarlyView.This study presents sulfate‐directed silver dendrites (s‐AgDs) as oxidation‐resistant SERS substrates with long‐term stability, reproducibility, and sub‐picomolar sensitivity. Sulfate ions guide anisotropic growth and protect the surface, enabling improved performance over 7 months under ambient conditions.
Aradhana Dwivedi +6 more
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Physical Origin of Temperature Induced Activation Energy Switching in Electrically Conductive Cement
Advanced Science, EarlyView.The temperature‐induced Arrhenius activation energy switching phenomenon of electrical conduction in electrically conductive cement originates from structural degradation within the biphasic ionic‐electronic conduction architecture and shows percolation‐governed characteristics: pore network opening dominates the low‐percolation regime with downward ...
Jiacheng Zhang +7 more
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A fractal modification of the tropical algebra for noise removal and optimal control
Journal of Low Frequency Noise, Vibration and Active ControlThis paper proposes a fractal modification of tropical algebra for noise removal and optimal control. Fractal addition, fractal multiplication, and fractal dot product are defined and explained in a fractal space.
Hong-yi Li, Chun-mei Gong
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Variational approach for time-space fractal Bogoyavlenskii equation
Alexandria Engineering JournalIn this paper, we apply the variational approach for solving the time-space fractal Bogoyavlenskii equation. By the two-scale fractal complex transformation, the fractal modification of Bogoyarlenskii equation is equivalently rewritten as the original ...
Junfeng Lu, Shaowei Shen, Lei Chen
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Graph‐Theory Approach to Element Miscibility and Alloy Design
Advanced Science, EarlyView.Graph and network theory enables pathway toward complex multiscale interactions between different elements for alloy design or interface engineering. Utilizing element's inherent properties and preferential interactivity, favorable mixed material formation, solubility and miscibility can be predicted.
Andrew Martin +6 more
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Minkowski Measurability Criteria for Compact Sets and Relative Fractal Drums in Euclidean Spaces [PDF]
, 2020 Michel L. Lapidus +2 more
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Reconfigurable Acoustofluidic Microvortices for Selective Microcargo Delivery
Advanced Science, EarlyView.This work introduces a frequency‐encoded, reconfigurable acoustofluidic system that overcomes the low throughput and poor selectivity of conventional micro‐delivery methods. By exploiting discrete microbubble resonances to program adaptive microvortex modes, the platform enables real‐time switching and selective guidance of microscale payloads through ...
Lei Wang +6 more
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Scientific ReportsComplex and nonlinear fractal equations are ubiquitous in natural phenomena. This research employs the fractal Euler−Lagrange and semi-inverse methods to derive the nonlinear space–time fractal Fornberg–Whitham equation.
A. Nazari-Golshan
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