Results 31 to 40 of about 1,371 (181)
A Simulation for Detecting Nonlinear Echoes from Microbubbles Packets
Archives of Acoustics, 2014 This work presents a simulation of the response of packets of microbubbles in an ultrasonic pulse-echo scan line. Rayleigh-Plesset equation has been used to predict the echo from numerically obtained radial dynamics of microbubbles. Varying the number of
Mohamed Galal Sayed ALI +2 more
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Analysis of Harmonic Instability of Tokamak Power System Caused by Rectifier Transformer Bias
南方能源建设, 2022 [Introduction] The paper aims to effectively suppress the disturbance of non characteristic harmonics to the power grid in the tokamak power supply system, the paper studies the mechanism of low-frequency harmonics in the tokamak power supply system ...
Jiansheng WANG +3 more
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Linear Mechatronic Modeling of Rectangular Tank Sloshing Dynamics
International Journal of Mechanical System Dynamics, EarlyView.ABSTRACT Sloshing dynamics in partially filled tanks can strongly influence system‐level behavior when fluid motion couples with rigid‐body dynamics. This paper presents a linear and acausal two‐dimensional sloshing model for rectangular tanks, based on the reformulation of established sloshing theory within a modular, multi‐domain modeling framework ...
Magnus Steinstø, Eilif Pedersen
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Temperature induced syllable breaking unveils nonlinearly interacting timescales in birdsong motor pathway. [PDF]
PLoS ONE, 2013 The nature of telencephalic control over premotor and motor circuits is debated. Hypotheses range from complete usurping of downstream circuitry to highly interactive mechanisms of control.
Matías A Goldin +4 more
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International Journal of Mechanical System Dynamics, EarlyView.ABSTRACT The rotor system of an electrically assisted turbocharger (EAT) is composed of multiple shaft components; The nonlinear connection and contact effects make it difficult to determine the system dynamic characteristics. To improve the modeling accuracy of EAT rotor system and evaluate the influence of contact between multi‐axis components and ...
Wenchao Liang +5 more
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New Journal of Physics, 2022 We study the diffusive motion of a particle in a subharmonic potential of the form U ( x ) = | x | ^c (0 < c < 2) driven by long-range correlated, stationary fractional Gaussian noise ξ _α ( t ) with 0 < α ⩽ 2.
Tobias Guggenberger +2 more
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Portal Hypertension &Cirrhosis, EarlyView.As the hepatic venous pressure gradient (HVPG) remains the current gold standard for diagnosing portal hypertension in cirrhosis, its clinical application is limited by invasiveness, high cost, and restricted availability. Given the urgent need for noninvasive techniques to dynamically monitor portal vein pressure (PVP), contrast‐enhanced ...
Danping Huang +5 more
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Torus and Subharmonic Motions of a Forced Vibration System in 1 : 5 Weak Resonance
Advances in Mathematical Physics, 2020 The Neimark-Sacker bifurcation of a forced vibration system is considered in this paper. The series solution to the motion equation is obtained, and the Poincaré map is established.
Yong Guo
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Diagnosis of Portal Hypertension: Advancing Towards Non‐Invasive Solutions
Portal Hypertension &Cirrhosis, EarlyView.This review systematically summarizes a full spectrum of non‐invasive diagnostic approaches for portal hypertension (PH), including imaging modalities, elastography, serum biomarkers, composite scoring systems and endoscopic ultrasound‐guided portal pressure gradient (EUS‐PPG), and analyzes their performance across different liver disease etiologies ...
Lijia Yin, Huikuan Chu, Ling Yang
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Integrals of Subharmonic Functions
Irish Mathematical Society Bulletin, 1989 See also Bull. Math. Soc. 19, 343-349 (1987; Zbl 0596.31003).
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