Results 21 to 30 of about 1,345,648 (320)

Research and implementation of double-tube flyback auxiliary power supply with high-voltage and wide-range input

open access: yesDianzi Jishu Yingyong, 2018
According to power supply requirements of power electronic converter with high-voltage and wide-range input,a double-tube flyback auxiliary switching power supply was designed. The operation principle of the double-tube flyback converter was analyzed. In
Feng Baogang   +2 more
doaj   +1 more source

Compensation of thermal nonlinearity effect in optical resonators [PDF]

open access: yes, 2011
Thermal nonlinearity is known to cause bistability in Whispering Gallery Mode (WGM) resonators and to destabilize the red slope of the Lorentzian resonant curve.
Chen, Tong   +3 more
core   +1 more source

Wavefront Coherent Compensation Technology Under Direct Sunlight in Free Space Optical Communication System

open access: yesIEEE Photonics Journal, 2021
The charge-coupled device-based Shaker–Hartmann wavefront sensor has been widely used to compensate for wavefront distortion in coherent optical communication.
Xu Yan   +6 more
doaj   +1 more source

The response of Southern Ocean eddies to increased midlatitude westerlies: a non-eddy resolving model study [PDF]

open access: yes, 2011
The midlatitude westerlies of the southern hemisphere have intensified since the 1970s. Non-eddy resolving general circulation models respond to such wind intensification with steeper isopycnals, a faster Antarctic Circumpolar Current (ACC), and a ...
Hofmann, M., Morales Maqueda, M. A.
core   +1 more source

High-contrast spectroscopy of SCR J1845-6357 B [PDF]

open access: yes, 2011
Spectral characterization of sub-stellar companions is essential to understand their composition and formation processes. However, the large contrast ratio of the brightness of each object to that of its parent star limits our ability to extract a clean ...
A. Vigan   +32 more
core   +3 more sources

Final Research Report for Sound Design and Audio Player [PDF]

open access: yes, 2018
This deliverable describes the work on Task 4.3 Algorithms for sound design and feature developments for audio player. The audio player runs on the in-store player (ISP) and takes care of rendering the music playlists via beat-synchronous automatic DJ ...
Fourer, Dominique, Schwarz, Diemo
core   +1 more source

Evaluation of P-Band SAR Tomography for Mapping Tropical Forest Vertical Backscatter and Tree Height

open access: yesRemote Sensing, 2021
Low-frequency tomographic synthetic aperture radar (TomoSAR) techniques provide an opportunity for quantifying the dynamics of dense tropical forest vertical structures.
Naveen Ramachandran   +4 more
doaj   +1 more source

Loop stability analysis of boost circuit under globally dynamic compensation strategy

open access: yesThe Journal of Engineering, 2018
The PFC Boost converter controlled by the mode of CCM has strong non-linearity due to the use of non-linear elements such as power switch and multipliers.
Xiaofan Wang   +3 more
doaj   +1 more source

Compensatory classification in spine sagittal malalignment with lumbar degeneration

open access: yesBMC Musculoskeletal Disorders, 2023
Objective To generate a compensatory classification to evaluate sagittal spinal malalignment with lumbar degeneration. Methods We included 162 patients with low back pain who underwent full-length spinal radiography in our hospital from August 2019 to ...
Yu Wang   +5 more
doaj   +1 more source

A novel low-voltage current-limiting control strategy with improved voltage compensation

open access: yesEnergy Reports, 2023
By optimizing the design of the conventional low-voltage current limiting controller (VDCOL), the continuous commutation failure on the receiving end of the traditional LCC-HVDC transmission system is effectively suppressed.
Haitao Wu, Yunbin Li, Zhihe Wang
doaj   +1 more source

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