Results 31 to 40 of about 802,761 (299)

Chaotic characteristics and attractor evolution of friction noise during friction process

open access: yesFriction, 2017
Friction experiments are conducted on a ring-on-disk tribometer, and friction noise produced during the friction process is extracted by a microphone.
Cong Ding   +4 more
doaj   +1 more source

Uniaxial Compressive Failure Characteristics and Fractal Analysis of Mud–Sand Composite Rock Samples Based on Acoustic Emission Tests

open access: yesFractal and Fractional
In order to study the influence of rock combination types on their mechanical properties and failure characteristics, uniaxial compression tests of single rock samples and combined rock samples were conducted.
Changzheng Zhao   +4 more
doaj   +1 more source

Data Driven Models for Human Motion Prediction in Human-Robot Collaboration

open access: yesIEEE Access, 2020
To improve the safety and effectiveness of human-robot collaboration (HRC), the robot must plan a safe trajectory before the human movement is finished. Therefore, it is necessary to enable proactive robot behavior by making accurate intention prediction
Qinghua Li   +4 more
doaj   +1 more source

Persistent quantum interfering electron trajectories

open access: yes, 2010
The emission of above-ionization-threshold harmonics results from the recombination of two electron wavepackets moving along a "short" and a "long" trajectory in the atomic continuum.
Charalambidis, D.   +3 more
core   +1 more source

Analysis of polishing a flat plate by using a data acquisition tool for metal-mould polishing

open access: yesNihon Kikai Gakkai ronbunshu, 2017
This paper analyzes metal-mold polishing by human hands. The metal-mold polishing generally requires long experiences about polishing works. Although experienced persons have many excellent skills, it is a little difficult to evidently teach them to ...
Kiyoshi IOI   +2 more
doaj   +1 more source

Phase shift in experimental trajectory scaling functions

open access: yes, 1993
For one dimensional maps the trajectory scaling functions is invariant under coordinate transformations and can be used to compute any ergodic average.
Cvitanović   +14 more
core   +1 more source

Large deviations in the presence of cooperativity and slow dynamics. [PDF]

open access: yes, 2018
We study simple models of intermittency, involving switching between two states, within the dynamical large-deviation formalism. Singularities appear in the formalism when switching is cooperative or when its basic time scale diverges.
Whitelam, Stephen
core   +3 more sources

A Two-Level Optimization Method for Hypersonic Periodic Cruise Trajectory

open access: yesInternational Journal of Aerospace Engineering, 2021
Periodic cruise has the potential to improve the fuel-saving efficiency of hypersonic cruise vehicle but is difficult to optimize. In this paper, a two-level optimization method for the trajectory of periodic cruise is proposed.
Hesong Li   +4 more
doaj   +1 more source

Calculating tumor trajectory and dose-of-the-day using cone-beam CT projections

open access: yes, 2015
Purpose: Cone-beam CT (CBCT) projection images provide anatomical data in real-time over several respiratory cycles, forming a comprehensive picture of tumor movement.
Jones, Bernard L.   +2 more
core   +1 more source

Quantum trajectory approach to stochastically-induced quantum interference effects in coherently-driven two-level atoms [PDF]

open access: yes, 2002
Stochastic perturbation of two-level atoms strongly driven by a coherent light field is analyzed by the quantum trajectory method. A new method is developed for calculating the resonance fluorescence spectra from numerical simulations.
A. Imamoǧlu   +34 more
core   +2 more sources

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