Results 1 to 10 of about 1,361,716 (290)

Acoustic vibrational resonance in a Rayleigh-Plesset bubble oscillator [PDF]

Ultrasonics Sonochemistry, 2021
The phenomenon of vibrational resonance (VR) has been investigated in a Rayleigh-Plesset oscillator for a gas bubble oscillating in an incompressible liquid while driven by a dual-frequency force consisting of high-frequency, amplitude-modulated, weak ...
K.A. Omoteso, T.O. Roy-Layinde, J.A. Laoye, U.E. Vincent, P.V.E. McClintock   +4 more
doaj   +2 more sources

Vibrational resonance and chaos control in the canonical Chua’s circuit with a smooth nonlinear resistor [PDF]

Scientific Reports
Vibrational resonance and chaos control in the canonical Chua’s circuit with a smooth cubic nonlinear resistor is investigated by an analog circuit experiment and a dynamical model.
Hao Li, Jiangling Liu, Chaorun Li, Luchun Du   +3 more
doaj   +2 more sources

Vibrational Resonance and Electrical Activity Behavior of a Fractional-Order FitzHugh–Nagumo Neuron System

Mathematics, 2021
Making use of the numerical simulation method, the phenomenon of vibrational resonance and electrical activity behavior of a fractional-order FitzHugh–Nagumo neuron system excited by two-frequency periodic signals are investigated.
Jia-Wei Mao, Dong-Liang Hu
doaj   +1 more source

Vibrational Resonance in the Classical Morse Oscillator Driven by Narrow-Band and Wide-Band Frequency Modulated Signals [PDF]

Journal of Pure and Applied Chemistry Research, 2016
The phenomenon of vibrational resonance (VR) in the classical Morse oscillator influenced by narrow band and wide band frequency modulated signals is numerically studied. Vibrational resonance is found to occur when the amplitudes f and g and frequencies
S. Guruparan, B. Ravindran Durai Nayagam, Chinnathambi Veerapadran, S. Rajasekar   +3 more
doaj   +1 more source

An analog circuit experiment on vibrational resonance of an underdamped bistable system

The Journal of Engineering, 2022
The underdamped vibrational resonance of a bistable analogue circuit is investigated. For a wide range of damping coefficients, vibrational resonance phenomena are more robust than over‐damped states. In particular, the vibration resonance curve reenters
Jiangling Liu, Jiahao Jiang, Maomao Ge, Yuanyuan Li, Luchun Du   +4 more
doaj   +1 more source

Vibrational Resonance with Self-adaptive Frequency-Shifted and Scaling for Fault Detection of Bearings

Nantong Daxue xuebao. Ziran kexue ban, 2020
Aiming to solve the difficulty of detecting the rolling element bearings defects in the early stage, which are used in water turbines and wind turbines, a vibrational resonance method with an adaptive frequency-shifted scaling is proposed. In this method,
MAO Cheng;SHEN Chunhe;CUI Yue;LI Linfeng;CHEN Manhua;CHEN Hui;XIE Zhanshan
doaj   +1 more source

The Transformation by Catalysis of Prebiotic Chemical Systems to Useful Biochemicals: A Perspective Based on IR Spectroscopy of the Primary Chemicals II. Catalysis and the Building of RNA

Applied Sciences, 2020
Having found that carbonyl sulfide (COS), works well as a catalyst in the transformation of amino acids to polypeptides, we have now tested COS as a catalyst also for the formation of substances that might be thought of as partners in the building of RNA.
Ragnar Larsson, Abdul Malek, Ingemar Odenbrand   +2 more
doaj   +1 more source

Resonance mediated by fermions in kink-antikink collisions

Journal of High Energy Physics, 2022
We investigate generalizations of the ϕ 4 and sine-Gordon models, including interactions with Dirac Fermions. We observe new resonance phenomena by taking the fermion back-reaction into account.
Dionisio Bazeia, João G. F. Campos, Azadeh Mohammadi   +2 more
doaj   +1 more source

The Transformation by Catalysis of Prebiotic Chemical Systems to Useful Biochemicals: A Perspective Based on IR Spectroscopy of the Primary Chemicals: Solid-Phase and Water-Soluble Catalysts

Applied Sciences, 2021
This study is a continuation of our research on understanding the possible chemical routes to the evolution of life on earth based on the “Selective Energy Transfer” (SET) theory.
Ragnar Larsson, Abdul Malek
doaj   +1 more source

The Transformation by Catalysis of Prebiotic Chemical Systems to Useful Biochemicals: A Perspective Based on IR Spectroscopy of the Primary Chemicals: I. The Synthesis of Peptides by the Condensation of Amino Acids

Applied Sciences, 2020
It is now widely speculated that life originated at the “Black Smokers” of the undersea hydrothermal vents, where conditions exist for the formation of the primary ingredients and their subsequent transformation to higher biotic species such ...
Ragnar Larsson, Abdul Malek
doaj   +1 more source