Results 1 to 10 of about 2,089,566 (302)

Low distortion automatic phase control circuit [PDF]

open access: yes, 1974
A voltage controlled phase shifter is rendered substantially harmonic distortion free over a large dynamic input range by employing two oppositely poled, equally biased varactor diodes as the voltage controlled elements which adjust the phase shift ...
Hauge, G., Pederson, C. W.
core   +1 more source

Phase control of a longitudinal momentum entangled photon state by a deformable membrane mirror

open access: yes, 2009
We propose a paradigmatic demonstration of the potentialities of a deformable mirror for closed-loop control of a two-photon momentum-entangled state, subject to phase fluctuations.
Abouraddy   +29 more
core   +1 more source

Vector control method applied to a traveling wave in a finite beam [PDF]

open access: yes, 2014
This paper presents the closed-loop control of exciters to produce a traveling wave in a finite beam. This control is based on a dynamical modeling of the system established in a rotating reference frame.
AMBERG, Michel   +3 more
core   +6 more sources

Direct power control of dual-active-bridge dc–dc converters based on unified phase shift control

open access: yesThe Journal of Engineering, 2019
Dual-active-bridge (DAB) dc–dc converters are the important part of the transformerless electric traction drive system in railway application. Also the dynamic characteristic of DAB converters in the electric traction drive system is very significant ...
Feng An, Wensheng Song, Kexin Yang
doaj   +1 more source

Nonadiabatic geometric phase induced by a counterpart of the Stark shift

open access: yes, 2005
We analyse the geometric phase due to the Stark shift in a system composed of a bosonic field, driven by time-dependent linear amplification, interacting dispersively with a two-level (fermionic) system. We show that a geometric phase factor in the joint
Ben-Aryeh Y.   +11 more
core   +1 more source

Controllable linear $\pi$-phase modulation in a thermal atom vapor without diffraction or absorption [PDF]

open access: yes, 2014
A scheme is proposed to achieve substantial controllable phase modulation for a probe field propagating through a thermal atomic vapor in double-$\Lambda$ configuration.
Evers, Jörg, Zhang, Lida
core   +3 more sources

Dynamic Shift Coordinated Control Based on Motor Active Speed Synchronization with the New Hybrid System

open access: yesShock and Vibration, 2017
Considering the inherent disadvantages that severely affect driving comfortability during the shift process in HEVs, a dynamic shift coordinated control based on motor active speed synchronization is proposed to improve shift quality by reduction of ...
Ting Yan   +5 more
doaj   +1 more source

Research of single phase-shift close-loop control for bi-directional full-bridge DC-DC converter

open access: yesGong-kuang zidonghua, 2014
In view of problem of low efficiency of bi-directional full-bridge DC-DC converter based on traditional single phase-shift control, the paper proposed a design scheme of bi-directional full-bridge DC-DC converter based on single phase-shift close-loop ...
YANG Xiaokang   +3 more
doaj   +1 more source

Supersensitivity of Patients With Bipolar I Disorder to Light-Induced Phase Delay by Narrow Bandwidth Blue Light

open access: yesBiological Psychiatry Global Open Science, 2022
Background: Bipolar disorder is a severe chronic mental disorder. There is a bidirectional relationship between disease course and circadian phase. Significant circadian phase shifts occur during transitions between episodes, but episodes can also be ...
Philipp Ritter   +11 more
doaj   +1 more source

Direct digital control of an efficient silicon+lequid crystal phase shifter [PDF]

open access: yes, 2014
We demonstrate a phase shifter based on a silicon slot waveguide infiltrated with liquid crystal. We achieve a phase shift of 73 pi for a 5V drive voltage, with a voltage-length product of 0.022V.mm around 1V. We can drive the phase shifter directly with
Absil, P   +12 more
core  

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