Results 61 to 70 of about 106,437 (299)

Iron Loss Analysis of PMSM in Different Driving Conditions

open access: yes机车电传动, 2012
The amount of PM iron loss varied according to different driving conditions. In this paper, the actual current of the prototype motor was used to perform 2D finite -element analysis and obtain the flux-density waveform in conditions of no-load, maximum ...
王鹏, 陈阳生, 陈致初
doaj  

In Situ Fatigue Damage Monitoring by Means of Nonlinear Ultrasonic Measurements

open access: yesMetals, 2023
In the present work, the results of acoustic nonlinear response of ultrasonic wave propagation when monitoring the progress of damage induced by fatigue on notched C45 carbon steel specimens have been reported.
Andrea Saponaro, Riccardo Nobile
doaj   +1 more source

Optical Signature of Moiré Superlattices Formed by Twisted SrTiO3 Membranes

open access: yesAdvanced Functional Materials, EarlyView.
We discover optical signatures from bonded interfaces in twisted SrTiO3 moiré superlattices, including low‐frequency Raman vibrational modes and strong second‐harmonic generation, consistent with strong interlayer coupling inferred from cross‐sectional electron microscopy and ab initio calculations. ABSTRACT Moiré superlattices formed at the interfaces
T. A. M. Ragib Shahriar   +13 more
wiley   +1 more source

Future work on harmonics : some expert opinions : part II : supraharmonics, standards and measurements [PDF]

open access: yes, 2014
A workshop on power system harmonics was organized in Stockholm in January 2014. On the agenda was among others a discussion on what are the main issues on harmonics at the moment and in the near future.
Desmet, Jan   +29 more
core   +1 more source

Accurate harmonics mitigation for water desalination plant supplied by multi-energy sources based on deep learning algorithms

open access: yesAlexandria Engineering Journal
This research concerns the water desalination plant supplied by multi-energy sources to reduce production costs and minimize environmental impact. The multi-energy system has solar modules added to the grid sources.
Hasnaa M. El-Arwash   +2 more
doaj   +1 more source

Two‐Photon Grayscale Lithography (2GL) of High Mechanical and Optical Quality 3D Silica Glass Microstructures

open access: yesAdvanced Functional Materials, EarlyView.
Two‐photon grayscale lithography (2GL) enables high‐speed and precise 3D printing of thermolyzed silica glass microstructures with optical‐grade surface quality, high quality factors, and mechanical strength utilizing a custom‐made pre‐glass resist based on polyhedral oligomeric silsesquioxane (POSS) modified with a high‐sensitivity Norrish type II ...
Jonathan L. G. Schneider   +4 more
wiley   +1 more source

Motion Artifacts Removal from Measured Arterial Pulse Signals at Rest: A Generalized SDOF-Model-Based Time–Frequency Method

open access: yesSensors
Motion artifacts (MA) are a key factor affecting the accuracy of a measured arterial pulse signal at rest. This paper presents a generalized time–frequency method for MA removal that is built upon a single-degree-of-freedom (SDOF) model of MA, where MA ...
Zhili Hao
doaj   +1 more source

Vector‐Field Control and Emergent Basal‐Plane Anisotropy of Magnetic Textures in Noncentrosymmetric (Fe0.63Ni0.3Pd0.07)3P

open access: yesAdvanced Functional Materials, EarlyView.
A field‐driven transition from chiral stripes to an achiral fan state is observed in a tetragonal magnet and linked to a temperature‐dependent rotation of the effective Dzyaloshinskii–Moriya interaction axis. This interplay generates pronounced in‐plane anisotropy and provides a new route for controlling chiral spin textures in noncentrosymmetric ...
Victor Ukleev   +19 more
wiley   +1 more source

Generating functions for L-harmonics

open access: yes, 2019
Title of program: LHARM Catalogue Id: AARE_v1_0 Nature of problem Generating functions enumerating L-harmonics are useful in providing polynomial bases and constructing missing label operators for semisimple groups reduced according to the ...
R.W. Gaskell (8090870)
core   +1 more source

Harmonic knots [PDF]

open access: yesJournal of Knot Theory and Its Ramifications, 2016
The harmonic knot [Formula: see text] is parametrized as [Formula: see text] where [Formula: see text], [Formula: see text] and [Formula: see text] are pairwise coprime integers and [Formula: see text] is the degree [Formula: see text] Chebyshev polynomial of the first kind. We classify the harmonic knots [Formula: see text] for [Formula: see text] We
Koseleff, Pierre-Vincent, Pecker, Daniel
openaire   +4 more sources

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