Results 11 to 20 of about 220,258 (303)

Differential Confocal Optical Probes with Optimized Detection Efficiency and Pearson Correlation Coefficient Strategy Based on the Peak-Clustering Algorithm

open access: yesMicromachines, 2023
Quantifying free-form surfaces using differential confocal microscopy can be challenging, as it requires balancing accuracy and efficiency. When the axial scanning mechanism involves sloshing and the measured surface has a finite slope, traditional ...
Zhiyi Wang   +4 more
doaj   +1 more source

Modification of the CSIRO method in the long-term monitoring of slope-induced stress

open access: yesFrontiers in Earth Science, 2022
The in situ stress measurement technique can be used in long-term monitoring of induced stress to obtain three-dimensional stress states in slope engineering.
Zhihao Jin   +6 more
doaj   +1 more source

Analysis of Subharmonic Oscillation and Slope Compensation for a Differential Boost Inverter

open access: yesApplied Sciences, 2020
This paper focuses on the steady-behavior of a differential boost inverter used for generating a sinewave AC voltage in rural areas. The analysis of its dynamics will be performed using an accurate approach based on discrete time models and Floquet ...
Abdelali El Aroudi   +3 more
doaj   +1 more source

Hysteresis Characteristics and MPI Compensation of Two-Dimensional Piezoelectric Positioning Stage

open access: yesMicromachines, 2022
Piezoelectric positioning stage is the core component of precision positioning system and advanced instrument. Its hysteresis characteristics, especially rate-dependent characteristics, are the main factors affecting the positioning or control accuracy ...
Wanqiang Wang   +3 more
doaj   +1 more source

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

Polynomial Curve Slope Compensation for Peak-Current-Mode-Controlled Power Converters [PDF]

open access: yes, 2019
Linear ramp slope compensation (LRC) and quadratic slope compensation (QSC) are commonly implemented in peak-current-mode-controlled dc-dc converters in order to minimize subharmonic and chaotic oscillations.
Deng, Xu   +5 more
core   +2 more sources

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

Slope Compensation Design for a Peak Current-Mode Controlled Boost-Flyback Converter

open access: yesEnergies, 2018
Peak current-mode control is widely used in power converters and involves the use of an external compensation ramp to suppress undesired behaviors and to enhance the stability range of the Period-1 orbit.
Juan-Guillermo Muñoz   +3 more
doaj   +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

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