Results 21 to 30 of about 15,047 (298)

The self-oscillation paradox in the flight motor of D. melanogaster

open access: yes, 2023
Tiny flying insects, such as Drosophila melanogaster, fly by flapping their wings at frequencies faster than their brains are able to process. To do so, they rely on self-oscillation: dynamic instability, leading to emergent oscillation, arising from ...
Pons, Arion, Pons, Arion,
core   +1 more source

A Self-Stabilized Inverted Pendulum Made of Optically Responsive Liquid Crystal Elastomers

open access: yesFrontiers in Robotics and AI, 2022
The inverted pendulum system has great potential for various engineering applications, and its stabilization is challenging because of its unstable characteristic.
Quanbao Cheng, Lin Zhou, Kai Li
doaj   +1 more source

Thermosyphon by refrigerant self‐excited oscillation

open access: yesHeat Transfer—Asian Research, 1998
In the compact closed two-phase thermosyphon, boiling area is adjacent to condensation area and condensation area is provided with innerfin uniquely against conventional thermosyphons. We clalified that the combination of condensation and self-excited oscillation convection resulted in good heat release.
OSAKABE, Hiroyuki   +3 more
openaire   +2 more sources

Study on a Heuristic Wheelset Structure without Rail Corrugation on Sharply Curved Tracks

open access: yesShock and Vibration, 2021
Rail corrugation on low rails of sharp railway curves is still a difficult problem to solve worldwide. Nearly all low rails of the sharp railway curves incur rail corrugation. In the present study, an active method to remedy rail corrugation was studied.
G. M. Mei   +3 more
doaj   +1 more source

Modulation of annular fluid enhanced self-excited pulsed water jet and its coal breaking characteristics

open access: yesMeitan xuebao, 2023
There are some bottleneck problems in the pressure relief and antireflection technology of submerged water jet in a downward hole, such as weak impact force, low coal breaking efficiency, less coal cutting and poor adaptability.
Yanwei LIU   +8 more
doaj   +1 more source

An Experimental Study on the Jet Pressure Performance of Organ–Helmholtz (O-H), Self-Excited Oscillating Nozzles

open access: yesEnergies, 2020
To make a better application of the self-excited oscillation jet, a compound organ−Helmholtz oscillation nozzle (OH nozzle) was designed to generate better pulse effects in the present study.
Xiaochuan Wang   +5 more
doaj   +1 more source

Experimental study on characteristics of self-excited oscillation pulsed water jet [PDF]

open access: yes, 2017
To promote the application of self-excited oscillation pulsed water jet in various fields, various characteristics of self-excited oscillation pulsed water jet were studied experimentally.
Zhaolong Ge   +3 more
core   +1 more source

Oscillation-Induced Mixing Advances the Functionality of Liquid Marble Microreactors

open access: yes, 2022
Droplet-based microreactors often uncover fascinating phenomena and exhibit diverse functionality, which make them applicable in various fields. Liquid marbles (LMs) are non-wetting droplets coated with particles, and these features highlight their ...
Haixiao Shi (8900936)   +11 more
core   +5 more sources

Forced and self-excited oscillations of an optomechanical cavity [PDF]

open access: yesPhysical Review E, 2011
We experimentally study forced and self oscillations of an optomechanical cavity which is formed between a fiber Bragg grating that serves as a static mirror and between a freely suspended metallic mechanical resonator that serves as a moving mirror. In the domain of small amplitude mechanical oscillations, we find that the optomechanical coupling is ...
Zaitsev, S.   +3 more
openaire   +4 more sources

An Investigation of Vortex Shedding as Related to the Self-Excited Torsional Oscillation of an Airfoil [PDF]

open access: yes, 1948
This report covers the results of the experimental investigation of the self-excited torsional oscillation of a NACA 0006 airfoil suspended elastically. The relationship between the torsional oscillation and the shedding of vortices was investigated for ...
Chuan, Raymond Lu-Po
core   +1 more source

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