Results 41 to 50 of about 2,600,449 (287)

Theory of Nonlinear Vibrations for Antisymmetric Cross-Ply Bistable Laminated Shells

Shock and Vibration, 2021
In this paper, on the basis of taking the von Karman nonlinear factors into consideration, the constitutive equation of the antisymmetric cross-ply laminated composite was used to calculate the internal force and internal moment of the bistable structure,
B. Y. Zhang, W. Zhang
doaj   +1 more source

Cooperative Control for A Hybrid Rehabilitation System Combining Functional Electrical Stimulation and Robotic Exoskeleton

Frontiers in Neuroscience, 2017
Functional electrical stimulation (FES) and robotic exoskeletons are two important technologies widely used for physical rehabilitation of paraplegic patients.
Dingguo Zhang, Yong Ren, Kai Gui, Jie Jia, Wendong Xu   +4 more
doaj   +1 more source

Multi-frequency vortex-induced vibrations of a long tensioned beam in linear and exponential shear flows [PDF]

, 2013
The multi-frequency vortex-induced vibrations of a cylindrical tensioned beam of aspect ratio 200, free to move in the in-line and cross-flow directions within first a linearly and then an exponentially sheared current are investigated by means of direct
Triantafyllou, Michael S., Karniadakis, George E., Bourguet, Rémi   +2 more
core   +1 more source

Nonlinear Resonant Responses, Mode Interactions, and Multitime Periodic and Chaotic Oscillations of a Cantilevered Pipe Conveying Pulsating Fluid under External Harmonic Force

Complexity, 2020
The nonlinear resonant responses, mode interactions, and multitime periodic and chaotic oscillations of the cantilevered pipe conveying pulsating fluid are studied under the harmonic external force in this research.
Y. F. Zhang, T. Liu, W. Zhang
doaj   +1 more source

Raman‐based label‐free microscopic analysis of the pancreas in living zebrafish larvae

FEBS Open Bio, EarlyView.
Forward stimulated Raman scattering (F‐SRS) and epi coherent anti‐Stokes Raman scattering (E‐CARS) allow label‐free discrimination of distinct subcellular structures in the pancreas of living zebrafish larvae. Given the straightforward applicability, we anticipate broad implementation of Raman microscopy in other organs and across various biomedical ...
Noura Faraj, Eline M. F. de Lange, Klaas A. Sjollema, Ben N. G. Giepmans   +3 more
wiley   +1 more source

Nonlinear Vibrations of a Rotor-Active Magnetic Bearing System with 16-Pole Legs and Two Degrees of Freedom

Shock and Vibration, 2020
The asymptotic perturbation method is used to analyze the nonlinear vibrations and chaotic dynamics of a rotor-active magnetic bearing (AMB) system with 16-pole legs and the time-varying stiffness.
W. Zhang, R. Q. Wu, B. Siriguleng
doaj   +1 more source

Effects of the Whole-Body Vibration Exercise on Sleep Disorders, Body Temperature, Body Composition, Tone, and Clinical Parameters in a Child with Down Syndrome Who Underwent Total Atrioventricular Septal Defect Surgery: A Case-Report

Children, 2023
Background: The health and developmental issues of people with Down syndrome (DS) are complex and are associated with many medical, psychological, and social problems from childhood through into adulthood. DS children have an increased risk of multiorgan
Luiza Torres-Nunes, Patrícia Prado da Costa-Borges, Laisa Liane Paineiras-Domingos, José Alexandre Bachur, Ana Carolina Coelho-Oliveira, Danúbia da Cunha de Sá-Caputo, Mario Bernardo-Filho   +6 more
doaj   +1 more source

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

FEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

Linear, nonlinear dynamics, and sensitivity analysis of a vibratory ring gyroscope

Theoretical and Applied Mechanics Letters, 2018
: The linear and nonlinear dynamic responses of a vibratory ring gyroscope are investigated in this study focusing on the response mechanism of such a vibratory gyroscope.
Dong-Dong Liang, Xiao-Dong Yang, Wei Zhang, Yuan Ren, Tianzhi Yang   +4 more
doaj   +1 more source

Investigation of the Rail-Induced Vibrations on a Masonry Historical Building [PDF]

, 2010
Increasingly historic masonry buildings are subjected to higher levels of traffic and rail vibrations due to urbanization and population growth. Deterioration and destabilisation of these buildings may result, especially if they were previously damaged ...
Aykut Erkal, Kaya, Yavuz, Debra Laefer, Ufuk Hancilar, Paul Fanning, Yavuz Kaya, Erkal, Aykut, Fanning, Paul, Laefer, Debra F., Durukal, Eser, Hancilar, Ufuk, Eser Durukal   +11 more
core   +1 more source