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Advanced Functional Materials, 2023
Phototropism and self‐oscillation are both self‐regulating intelligent movements of biological organisms. However, realizing these intelligent movements in one same artificial actuation system remains a great challenge. Here, by introducing dynamic light‐
Jinquan Liu +6 more
semanticscholar +1 more source
Phototropism and self‐oscillation are both self‐regulating intelligent movements of biological organisms. However, realizing these intelligent movements in one same artificial actuation system remains a great challenge. Here, by introducing dynamic light‐
Jinquan Liu +6 more
semanticscholar +1 more source
Light-powered soft steam engines for self-adaptive oscillation and biomimetic swimming
Science Robotics, 2021Description Light-powered soft steam engines enable self-adaptive photothermal oscillation and biomimetic neuston-like swimming. Oscillation plays a vital role in the survival of living organisms in changing environments, and its relevant research has ...
Zhiwei Li, N. Myung, Yadong Yin
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A CONSTANT FREQUENCY OSCILLATOR
Review of Scientific Instruments, 1930The frequency of a vacuum tube oscillator depends not only upon the constants of the oscillating circuit but also upon those of the tube itself. In a tuned plate circuit, operating with minimum coupling the influence of the tube on frequency depends only on its plate resistance, and decreases as the plate resistance is increased.
Carl W. Miller, Howard L. Andrews
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Small-Signal Stability Analysis of a VSC-MTDC System for Investigating DC Voltage Oscillation
IEEE Transactions on Power Systems, 2021In this study, the DC voltage oscillation mechanism is investigated based on the linearized models of a voltage-source converter (VSC)-based multiple terminal DC (MTDC) system. First, the mechanism of DC voltage oscillation generation is revealed.
Q. Fu +4 more
semanticscholar +1 more source
Constant-Speed Oscillation of a Pump Turbine Observed on a Pumped-Storage Model System
Journal of Fluids Engineering, 2019The hydraulic characteristics of pump turbines in off-design conditions, especially the S-shaped characteristics, are crucial for the safety and stability of the unit.
Jinhong Hu +3 more
semanticscholar +1 more source
Advanced Functional Materials, 2020
Mimicking the intelligence of biological organisms in artificial systems to design smart actuators that act autonomously in response to constant environmental stimuli is crucial to the construction of intelligent biomimetic robots and devices, but ...
Lulu Yang +8 more
semanticscholar +1 more source
Mimicking the intelligence of biological organisms in artificial systems to design smart actuators that act autonomously in response to constant environmental stimuli is crucial to the construction of intelligent biomimetic robots and devices, but ...
Lulu Yang +8 more
semanticscholar +1 more source
Nonlinear oscillations in a constant gravitational field
Physica Scripta, 2022Abstract Exploring non-linear oscillations is a challenging task since the related differential equations cannot be directly solved in terms of elementary functions. Thus, complicated mathematical or numerical methods are usually employed to find accurate or approximate expressions that describe the behavior of ...
S V Kontomaris, A Malamou
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Structural Oscillation Revealed in Gold Nanoparticles.
Journal of the American Chemical Society, 2020Oscillation is an intriguing phenomenon in nature. However, structural oscillation has not yet been found in semiconducting nanoparticles, primarily due to the difficulty of structural resolution at the atomic level.
Nan Xia +7 more
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Sharp oscillation criteria for second‐order neutral delay differential equations
Mathematical methods in the applied sciences, 2020This paper is a continuation of a recent work by the authors on the oscillatory properties of second‐order half‐linear neutral delay differential equations.
M. Bohner, S. Grace, I. Jadlovská
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Constant modulus alloys for mechanical oscillators
Metallurgical Transactions A, 1979A survey is given of the origins of constant modulus behavior in certain ferro- and antiferromagnetic alloys. All contributions to the modulus anomaly (ΔE) result from magnetic ordering. In the Fe-Ni system various influences are studied in detail; Ternary alloying elements, precipitation hardening process, cold reduction and final thermal treatment ...
Wolfgang Schneider, Hans Thomas
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