Results 21 to 30 of about 763,081 (262)
Chemical Sensing Using Fiber Cavity Ring-Down Spectroscopy
Sensors, 2010 Waveguide-based cavity ring-down spectroscopy (CRD) can be used for quantitative measurements of chemical concentrations in small amounts of liquid, in gases or in films.
Hans-Peter Loock +4 more
doaj +1 more source
IEEE Photonics Journal, 2018 We demonstrate a phase-shifted fiber Bragg grating with a taper induced by femtosecond laser micromachining. In this configuration, a fiber taper fabricated by an arc discharge in a fiber splicer was sandwiched between two fiber Bragg grating sections ...
Feng Zhu +9 more
doaj +1 more source
Retrieval of Gap Fraction and Effective Plant Area Index from Phase-Shift Terrestrial Laser Scans
Remote Sensing, 2014 The characterization of canopy structure is crucial for modeling eco-physiological processes. Two commonly used metrics for characterizing canopy structure are the gap fraction and the effective Plant Area Index (PAIe).
Pyare Pueschel +2 more
doaj +1 more source
Phase Shift Strategies in Phase Shifting Time Averaging Interferometry [PDF]
Experimental 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
IEEE Access, 2017 High-frequency pulsating dc-link inverter has higher power density than the conventional fixed dc-link inverter (FDCLI), and more complicate modulation methods owing to the coupling between the front end and the last stage links.
Lijun Diao +5 more
doaj +1 more source
Bidirectional Dual Active Clamping Push-pull Dc-dc Converter
Eletrônica de Potência, 2016 In this paper is presented a bidirectional dual active clamping push-pull dc-dc converter, to be used in applications which require isolated bidirectional interface between two dc ports with low-voltage/low-current ripple.
Eduardo Valmir de Souza +2 more
doaj +1 more source
Applied Sciences, 2018 Fringe projection technologies have been widely used for three-dimensional (3D) shape measurement. One of the critical issues is absolute phase recovery, especially for measuring multiple isolated objects.
Xu Yang +5 more
doaj +1 more source
Eletrônica de PotênciaEste artigo apresenta a análise e operação de um conversor CA-CC trifásico, bidirecional e isolado em alta frequência, de único estágio com correção do fator de potência, destinado para aplicação como carregador embarcado de baterias de veículos ...
Rafael Felipe Van Kan +3 more
doaj +2 more sources
Phase transitions in paradigm shift models. [PDF]
PLoS 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
Therapeutic Apheresis and Dialysis, EarlyView.ABSTRACT Background Chronic micro‐inflammation in patients with end‐stage renal disease (ESRD) is a significant driver of cardiovascular complications and diminished quality of life. While standard hemodialysis (SHD) effectively manages small‐molecule clearance, its ability to remove medium‐to‐large uremic toxins—the primary catalysts of systemic ...
Hongwei Zuo +5 more
wiley +1 more source