Results 41 to 50 of about 2,763,116 (335)

Chaos and noise [PDF]

open access: yesChaos: An Interdisciplinary Journal of Nonlinear Science, 2013
Simple dynamical systems—with a small number of degrees of freedom—can behave in a complex manner due to the presence of chaos. Such systems are most often (idealized) limiting cases of more realistic situations. Isolating a small number of dynamical degrees of freedom in a realistically coupled system generically yields reduced equations with terms ...
Salman Habib, Temple He
openaire   +4 more sources

The Effect of a Flexible Electrode on the Electro Deformability of an Actuating Unit of a MDI-Polyurethane Composite Fiber Membrane Filled with BaTiO3

open access: yesMembranes, 2022
The electro deformability of an actuating unit of a polyurethane dielectric elastomer (PUDE) is affected by many factors. The agglomeration of dielectric fillers faced by the traditional dielectric modification methods will lead to the instability of the
Gang Lu   +4 more
doaj   +1 more source

Numerical simulation of temperature variation in water layer induced by thermal jet in weak stratified environment

open access: yesAIP Advances, 2022
In order to explore the rising and diffusing path of an underwater thermal jet and the temperature variation of each water layer in the typical ocean thermohaline stratified environment, a three-dimensional mass-heat transport model of the thermal jet in
Feiyang Luo   +3 more
doaj   +1 more source

Preparation and Dielectric Sensitivity of Polyurethane Composite Fiber Membrane Filled with BaTiO3

open access: yesMembranes, 2022
Polyurethane dielectric elastomer (PUDE) is considered a potential underwater flexible actuator material due to its excellent designability and environmental tolerance at the molecular level. Currently, the application of the polyurethane elastomer as an
Gang Lu   +4 more
doaj   +1 more source

On the definition of noise

open access: yesHumanities and Social Sciences Communications, 2022
AbstractUrbanization has exposed people to extreme sound levels. Although researchers have investigated the ability of people to listen, analyze, and distinguish sound, the concept of noise has not been clearly articulated from a human perspective. The lack of knowledge on how people perceive noise limits our capacity to control it in a targeted manner.
Fangfang Liu   +6 more
openaire   +4 more sources

An intelligent bearing fault diagnosis system: A review

open access: yesMATEC Web of Conferences, 2019
Rolling element bearing (REB) is a well-known component that most extensively used in the industry. They operate in extreme condition (high temperature, dirty environment) which may lead to unexpected failure after the certain operation.
Saufi S.R.   +3 more
doaj   +1 more source

An integrated structure of air spring for ships and its strength characteristics

open access: yesScience and Engineering of Composite Materials, 2023
The increasing demand for the impact resistance of ships entails the excellent impact resistance and deformability of air spring (AS) for ships under high internal pressure.
Cheng Yuqiang   +4 more
doaj   +1 more source

Review of Lightweight Vibration Isolation Technologies for Marine Power Devices

open access: yesShock and Vibration
Vibration induced by marine power devices (MPD) transmitting to the hull structure is one of the most important factors that cause ship vibration and underwater sound radiation.
Yuanran Qiu   +4 more
doaj   +1 more source

Structural dynamics of the plant hormone receptor ETR1 in a native‐like membrane environment

open access: yesFEBS Letters, EarlyView.
The present study unveils the structural and signaling dynamics of ETR1, a key plant ethylene receptor. Using an optimized nanodisc system and solution NMR, we captured full‐length ETR1 in a native‐like membrane environment. Our findings reveal dynamic domain uncoupling and Cu(I)‐induced rigidification, providing the first evidence of metal‐triggered ...
Moritz Lemke   +2 more
wiley   +1 more source

Numerical modeling techniques for noise emission of free railway wheels

open access: yesRailway Engineering Science
In this article, we consider the numerical prediction of the noise emission from a wheelset in laboratory conditions. We focus on the fluid–structure interaction leading to sound emission in the fluid domain by analyzing three different methods to ...
Linus Taenzer   +4 more
doaj   +1 more source

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