Results 1 to 10 of about 2,809,435 (203)

Phase shift in skyrmion crystals [PDF]

open access: yesNature Communications, 2021
Skyrmions are a type of topological spin texture, which can exist as both an isolated state, and as a skyrmion crystal. Here, Hayami et al present a theoretical study of phase shifts in skyrmion crystals, showing how such phase shifts can lead to other ...
Satoru Hayami   +2 more
doaj   +6 more sources

Theory and application of robust linear phase-shift algorithm for phase-shift deflectometry method [PDF]

open access: yesScientific Reports
Based on the polynomial theory, the error propagation characteristics of the widely used N-step discrete Fourier transform (N-DFT) phase-shift algorithm were analyzed via theoretical analysis, under the effect of Gamma distortion and phase detuning.
Song Yang   +9 more
doaj   +2 more sources

Compensation Method Based on Phase Shift Between Pins of Crystal Resonator [PDF]

open access: yesSensors
This paper presents a new method to improve the long-term frequency stability of an oven-controlled crystal oscillator (OCXO) without an external reference source.
Zhiqi Li   +3 more
doaj   +2 more sources

Performance Analysis of Hybrid Phase Shift Keying over Generalized Nakagami Fading Channels

open access: yesJournal of Telecommunications and Information Technology, 2023
In addition to the benefits of hybrid phase shift keying (HPSK) modulation in reducing the peak to average power ratio of the transmitted signal to reduce the zero cross- ings and the 0◦-degree phase transmissions, HPSK enhances the bit error rate (BER)
Mahmoud Youssuf , Mohamed Z. Abdelmageed
doaj   +3 more sources

Comparison and Validation of Five Modulation Strategies for a Dual Active Bridge Converter

open access: yesEAI Endorsed Transactions on Energy Web, 2023
This paper addresses the comparison and validation of different modulations for an isolated dc-dc dual active bridge converter (DAB), namely, Duty-Cycle Modulation, Single Phase Shift (SPS), Dual Phase Shift (DPS), Extended Phase Shift (EPS) and Triple ...
Sergio Coelho   +5 more
doaj   +1 more source

Phase transitions in paradigm shift models. [PDF]

open access: yesPLoS ONE, 2013
Two general models for paradigm shifts, deterministic propagation model (DM) and stochastic propagation model (SM), are proposed to describe paradigm shifts and the adoption of new technological levels.
Huiseung Chae, Soon-Hyung Yook, Yup Kim
doaj   +1 more source

The phase shift induced by a single atom in free space [PDF]

open access: yesJournal of the European Optical Society-Rapid Publications, 2013
In this article we theoretically study the phase shift a single atom imprints onto a coherent state light beam in free space. The calculations are performed in a semiclassical framework.
Sondermann M., Leuchs G.
doaj   +1 more source

Celestial Spectrum Velocimetry With Non-Linear Fourier Phase Shift and Its CRLB

open access: yesIEEE Access, 2022
To solve the problem of the non-linear Fourier phase shift caused by the wavelength shift in the celestial spectrum velocimetry, a celestial spectrum velocimetry method based on non-uniform discrete Fourier transform and compressed sensing is proposed ...
Zijun Zhang, Jin Liu, Xiaolin Ning
doaj   +1 more source

Design and Application of Bidirectional Converter Based on DAB for Hydrogen Energy Dual-source Locomotive

open access: yesKongzhi Yu Xinxi Jishu, 2022
Compared with traditional diesel locomotive and electric locomotive, hydrogen energy dual source locomotive uses hydrogen fuel cell for power supply, which is not only safer and more environmentally friendly, but also has low operating noise, low cost ...
LUO Pan   +5 more
doaj   +1 more source

Phase Shift Strategies in Phase Shifting Time Averaging Interferometry [PDF]

open access: yesExperimental Techniques, 2021
AbstractClassical time-averaging interferometry technique is widely used for MEMS/MOEMS dynamic behavior investigations. It provides useful information on resonant vibration frequencies and mode shapes in the form of Bessel fringe images. To evaluate the information on objects’ vibration amplitude distribution, one needs to further process Bessel ...
A. Styk, H. Dziubecka - Bala
openaire   +1 more source

Home - About - Disclaimer - Privacy