Results 31 to 40 of about 2,763,116 (335)

Model-based design of a novel modular mounting system: Light, compact, and efficient

open access: yesAdvances in Mechanical Engineering, 2022
Two-stage mounting systems applied in ships are expected to be light in weight, compact in installation space, and efficient in vibration isolation performance at the same time, which largely increases the engineering complexity.
Yuanran Qiu   +3 more
doaj   +1 more source

Preparation of polyethylene glycol brush grafted from the surface of nitrile butadiene rubber with excellent tribological performance under aqueous lubrication

open access: yesMaterials & Design, 2022
The water-lubricated bearing will be in a state of poor lubrication when marine stern shafts operate under low speed and heavy load conditions, which could cause severe wear and vibration, endangering the stealth performance of underwater vehicles.
Yinsong Liu   +4 more
doaj   +1 more source

Axial and lateral stiffness of spherical self-balancing fiber reinforced rubber pipes under internal pressure

open access: yesScience and Engineering of Composite Materials, 2021
Fiber reinforced rubber pipes are widely used to transport fluid at locations requiring flexible connections in pipeline systems. The spherical self-balancing fiber reinforced rubber pipes with low stiffness are drawing attention because of their ...
Xu Guo-min, Shuai Chang-geng
doaj   +1 more source

Inhibitory “noise” [PDF]

open access: yesFrontiers in Cellular Neuroscience, 2010
Cortical neurons in vivo may operate in high-conductance states, in which the major part of the neuron's input conductance is due to synaptic activity, sometimes several-fold larger than the resting conductance. We examine here the contribution of inhibition in such high-conductance states.
openaire   +4 more sources

Tacticity in chiral phononic crystals

open access: yesNature Communications, 2019
Here, the authors study the influence of tacticity on the dynamic behaviour of chiral structured periodic media comprising rotational inertia elements. This opens the way towards new mechanisms for wave control by exploiting spin-spin coupling mechanism.
A. Bergamini   +7 more
doaj   +1 more source

Practical challenges in data‐driven interpolation: Dealing with noise, enforcing stability, and computing realizations

open access: yesInternational Journal of Adaptive Control and Signal Processing, EarlyView., 2023
Summary In this contribution, we propose a detailed study of interpolation‐based data‐driven methods that are of relevance in the model reduction and also in the systems and control communities. The data are given by samples of the transfer function of the underlying (unknown) model, that is, we analyze frequency‐response data.
Quirin Aumann, Ion Victor Gosea
wiley   +1 more source

Data‐driven performance metrics for neural network learning

open access: yesInternational Journal of Adaptive Control and Signal Processing, EarlyView., 2023
Summary Effectiveness of data‐driven neural learning in terms of both local mimima trapping and convergence rate is addressed. Such issues are investigated in a case study involving the training of one‐hidden‐layer feedforward neural networks with the extended Kalman filter, which reduces the search for the optimal network parameters to a state ...
Angelo Alessandri   +2 more
wiley   +1 more source

Crackling noise [PDF]

open access: yesNature, 2001
Crackling noise arises when a system responds to changing external conditions through discrete, impulsive events spanning a broad range of sizes. A wide variety of physical systems exhibiting crackling noise have been studied, from earthquakes on faults to paper crumpling. Because these systems exhibit regular behavior over many decades of sizes, their
Karin A. Dahmen   +2 more
openaire   +3 more sources

Tomography by Noise [PDF]

open access: yesPhysical Review Letters, 2014
We present an efficient and robust method for the reconstruction of photon number distributions by using solely thermal noise as a probe. The method uses a minimal number of pre-calibrated quantum devices, only one on/off single-photon detector is sufficient.
Georg Harder   +3 more
openaire   +3 more sources

Ultrasonic signal processing techniques for Pipeline: A review

open access: yesMATEC Web of Conferences, 2019
Monitoring pipeline wall is an important issue in oil and gas industries. Over time, the defect can occur in the pipeline and can impact surrounding population, environment and may result in injuries or fatalities.
Naqiuddin M. S. M   +3 more
doaj   +1 more source

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