Phase shifted transverse relaxation orientation dependences in human brain white matter.
Sign Up to like & getrecommendations! Published in 2023 at "NMR in biomedicine"
DOI: 10.1002/nbm.4925
Abstract: This work aims to demonstrate an essential phase shift ε 0 for better quantifying R 2 and R 2 * in the human brain white matter (WM), and to further elucidate its origin related to… read more here.
Keywords: transverse relaxation; orientation; phase shifted; human brain ... See more keywords
Square-shaped beam generated by phase shifted bounded square zone plate
Sign Up to like & getrecommendations! Published in 2017 at "Optical and Quantum Electronics"
DOI: 10.1007/s11082-017-1160-y
Abstract: A novel diffractive element is presented which is made through lateral phase shifted square zone plate bounded along horizontal and vertical axes via two perpendicular rectangle windows, respectively. We demonstrate that under a given condition… read more here.
Keywords: phase; phase shifted; square zone; zone plate ... See more keywords
Compact SOI optimized slot microring coupled phase-shifted Bragg grating resonator for sensing
Sign Up to like & getrecommendations! Published in 2018 at "Optics Communications"
DOI: 10.1016/j.optcom.2018.01.010
Abstract: Abstract We propose a novel sensor structure composed of a slot microring and a phase-shifted sidewall Bragg gratings in a slot waveguide. We first present a theoretical analysis of transmission by using the transfer matrix.… read more here.
Keywords: slot microring; compact soi; slot; phase shifted ... See more keywords
Phase-shifted reflective coherent gradient sensor for measuring Young’s modulus and Poisson’s ratio of polished alloys
Sign Up to like & getrecommendations! Published in 2017 at "Optics and Laser Technology"
DOI: 10.1016/j.optlastec.2016.09.023
Abstract: Abstract In this study, the Young’s modulus and Poisson’s ratio of Ni-Cr Alloy are measured using phase-shifted reflective coherent gradient sensing (CGS) method. Three-point bending experiment is applied to obtain the Young’s modulus by measuring… read more here.
Keywords: phase shifted; modulus poisson; young modulus; poisson ratio ... See more keywords
Transmission characteristics of sampled fiber Bragg grating and phase-shifted sampled fiber Bragg grating in the 2 μm band
Sign Up to like & getrecommendations! Published in 2019 at "Optical Fiber Technology"
DOI: 10.1016/j.yofte.2019.03.002
Abstract: Abstract For the first time, to the best of the authors’ knowledge, the transmission characteristics of sampled fiber Bragg grating (SFBG) and phase-shifted SFBG (PS-SFBG) in the 2 μ m band were investigated theoretically and… read more here.
Keywords: phase shifted; sampled fiber; fiber bragg; bragg grating ... See more keywords
Simple soft‐switched phase‐shifted FB converter for reduced voltage stress and negligible duty cycle loss
Sign Up to like & getrecommendations! Published in 2019 at "IET Power Electronics"
DOI: 10.1049/iet-pel.2019.0324
Abstract: A simple modified configuration of the conventional phase-shifted full-bridge (C-PSFB) converter, phase-shifted FB converter without filter inductor (PSFB-w/o-L) is proposed in this study in order to reduce the peak voltage stress on the rectifier diodes.… read more here.
Keywords: voltage; psfb; shifted converter; phase shifted ... See more keywords
An Optimized Carrier Phase-Shifted Modulation Strategy for Cuk PV Inverter
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Access"
DOI: 10.1109/access.2023.3256887
Abstract: There exists the problems of output voltage zero-point drift and high even harmonic content of the three-phase Cuk liftable voltage photovoltaic (PV) inverter when it adopts the conventional carrier modulation method. In view of these,… read more here.
Keywords: modulation; modulation strategy; phase shifted; carrier ... See more keywords
New diagnosis method of unknown phase-shifted PD signals for gas insulated switchgears
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Transactions on Dielectrics and Electrical Insulation"
DOI: 10.1109/tdei.2018.006739
Abstract: In many cases of on-site PD measurement, it is difficult to acquire the perfect phase angle of the PD signal synchronized with the applied voltage. This paper describes a new method of PD diagnosis which… read more here.
Keywords: phase; diagnosis; new diagnosis; phase shifted ... See more keywords
Sequential Phase-Shifted Model Predictive Control for Modular Multilevel Converters
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Transactions on Energy Conversion"
DOI: 10.1109/tec.2021.3074863
Abstract: Model predictive control has emerged as a promising approach to govern modular multilevel converters (MMCs), due to its flexibility to include multiple control objectives and simple design process. However, this control scheme presents relevant issues,… read more here.
Keywords: phase shifted; mpc; control; predictive control ... See more keywords
Variable-Angle Phase-Shifted PWM for Multilevel Three-Cell Cascaded H-Bridge Converters
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Transactions on Industrial Electronics"
DOI: 10.1109/tie.2017.2652406
Abstract: Multilevel cascaded H-bridge converters have become a mature technology for applications where high-power medium ac voltages are required. Normal operation of multilevel cascaded H-bridge converters assumes that all power cells have the same dc voltage,… read more here.
Keywords: bridge; multilevel; phase shifted; power ... See more keywords
Low-Switching-Frequency Operation of a Modular Multilevel DSCC Converter With Phase-Shifted Rotating-Carrier PWM
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Transactions on Power Electronics"
DOI: 10.1109/tpel.2016.2608912
Abstract: This paper provides a theoretical discussion on a new phase-shifted rotating-carrier (PSRC) pulsewidth modulation (PWM) method for a modular multilevel double-star chopper-cell (DSCC) converter. The new method enables the DSCC converter to operate at a… read more here.
Keywords: frequency; phase shifted; pwm; dscc converter ... See more keywords