Articles with "amplitude frequency" as a keyword



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Periodic Solution for Strongly Nonlinear Oscillators by He’s New Amplitude–Frequency Relationship

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Published in 2017 at "International Journal of Applied and Computational Mathematics"

DOI: 10.1007/s40819-017-0414-5

Abstract: This paper applies He’s new amplitude–frequency relationship recently established by He (Int J Appl Comput Math 3(2):1557–1560, 2017. doi:10.1007/s40819-016-0160-0) to study periodic solutions of strongly nonlinear systems with odd nonlinearities. Some examples are given to… read more here.

Keywords: strongly nonlinear; amplitude frequency; new amplitude; frequency relationship ... See more keywords
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Light-Powered Self-Sustained Oscillators of Graphene Oxide/Liquid Crystalline Network Composites Showing Amplitude and Frequency Superposition.

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Published in 2022 at "ACS applied materials & interfaces"

DOI: 10.1021/acsami.2c00680

Abstract: Light-activated self-oscillators have drawn enormous attention for their potential applications in mobile machines, energy harvesting, signal modulation, etc. Herein, we report one graphene oxide (GO)/liquid crystalline network (LCN) actuator that presents a unique light-activated oscillation… read more here.

Keywords: crystalline network; frequency superposition; oxide liquid; amplitude frequency ... See more keywords
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Resonance and bifurcation of fractional quintic Mathieu-Duffing system.

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Published in 2023 at "Chaos"

DOI: 10.1063/5.0138864

Abstract: In this paper, the main subharmonic resonance of the Mathieu-Duffing system with a quintic oscillator under simple harmonic excitation, the route to chaos, and the bifurcation of the system under the influence of different parameters… read more here.

Keywords: system; excitation; mathieu duffing; amplitude frequency ... See more keywords
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Effects of peristaltic amplitude and frequency on gastric emptying and mixing: a simulation study

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Published in 2023 at "Journal of the Royal Society Interface"

DOI: 10.1098/rsif.2022.0780

Abstract: The amplitude and frequency of peristaltic contractions are two major parameters for assessing gastric motility. However, it is not fully understood how these parameters affect the important functions of the stomach, such as gastric mixing… read more here.

Keywords: frequency; frequency gastric; amplitude frequency; emptying rate ... See more keywords
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A Memristive Chaotic Oscillator With Increasing Amplitude and Frequency

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Published in 2018 at "IEEE Access"

DOI: 10.1109/access.2017.2788408

Abstract: A chaotic oscillator utilizing a flux-controlled memristor to produce a signal that grows in amplitude and frequency over time is introduced in this paper. It was found that the initial condition can be used to… read more here.

Keywords: chaotic oscillator; amplitude frequency; memristive chaotic; oscillator increasing ... See more keywords
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Analytical Mathematical Model of Piezoelectric 6-D Accelerometer About Amplitude–Frequency Characteristics

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Published in 2022 at "IEEE Transactions on Instrumentation and Measurement"

DOI: 10.1109/tim.2021.3137543

Abstract: To realize the structural design optimization of the 6-D accelerometer based on the amplitude–frequency characteristics (AFCs), it is necessary to research the analytical mathematical modeling of the piezoelectric 6-D accelerometer about the AFC. The structural… read more here.

Keywords: analytical mathematical; mathematical model; accelerometer; piezoelectric accelerometer ... See more keywords
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A Method for Estimating the Amplitude–Frequency Characteristics of the Cable Line Model With Distributed Parameters

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Published in 2022 at "IEEE Transactions on Instrumentation and Measurement"

DOI: 10.1109/tim.2022.3205681

Abstract: The amplitude–frequency characteristics play an essential role in analyzing transmission power grids, such as harmonic amplification using the amplitude–frequency characteristics as the harmonic amplification factor, harmonic resonance, etc. However, when the cable line with distributed… read more here.

Keywords: amplitude frequency; frequency characteristics; model; cable line ... See more keywords
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Stochastic Computing Using Amplitude and Frequency Encoding

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Published in 2022 at "IEEE Transactions on Very Large Scale Integration (VLSI) Systems"

DOI: 10.1109/tvlsi.2022.3150569

Abstract: Stochastic computing (SC) is a type of logic computation based on stochastic bit stream instead of the binary numbers (BNs). It is pseudo-analog computation in the digital domain that can realize multiplication, addition, and complex… read more here.

Keywords: frequency encoding; using amplitude; amplitude frequency; stochastic computing ... See more keywords
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Characteristic amplitude-frequency functions of the radiated sound power

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Published in 2017 at "Journal of the Acoustical Society of America"

DOI: 10.1121/1.4989301

Abstract: The simulation-based design of dynamically loaded and acoustically sensitive components essentially includes the determination of the radiated sound power. Regarding several simplifications different approaches based on the surface velocity can be applied, such as the… read more here.

Keywords: frequency; sound power; radiated sound; frequency functions ... See more keywords
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Effect of Manipulated Amplitude and Frequency of Human Voice on Dominance and Persuasiveness in Audio Conferences

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Published in 2018 at "Proceedings of the ACM on Human-Computer Interaction"

DOI: 10.1145/3274446

Abstract: We propose to artificially manipulate participants' vocal cues, amplitude and frequency, in real time to adjust their dominance and persuasiveness during audio conferences. We implemented a prototype system and conducted two experiments. The first experiment… read more here.

Keywords: voice; effect; persuasiveness; dominance ... See more keywords
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Instantaneous Amplitude and Frequency Modulations Detect the Footprint of Rotational Activity and Reveal Stable Driver Regions as Targets for Persistent Atrial Fibrillation Ablation

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Published in 2019 at "Circulation Research"

DOI: 10.1161/circresaha.119.314930

Abstract: Supplemental Digital Content is available in the text. read more here.

Keywords: frequency modulations; modulations detect; detect footprint; footprint rotational ... See more keywords