Oscillating microbubbly flows generated by a fluidic oscillator: Flow behavior and mass transfer characteristics
Sign Up to like & getrecommendations! Published in 2025 at "AIChE Journal"
DOI: 10.1002/aic.18736
Abstract: In this study, a Coanda‐swept fluidic oscillator is used to generate oscillating microbubbly flows. Flow behavior measurements show that the generated microbubbly flows have periodic sweep characteristics. Massive microbubbles are generated by shear‐off‐induced breakup, dynamic… read more here.
Keywords: microbubbly flows; fluidic oscillator; mass transfer; oscillator ... See more keywords
Low phase noise buffer‐reused BiCMOS oscillator
Sign Up to like & getrecommendations! Published in 2021 at "Microwave and Optical Technology Letters"
DOI: 10.1002/mop.32867
Abstract: This letter presents a lower phase noise voltage‐controlled oscillator (VCO) uses two differential amplifiers in cross‐coupled feedback and is named as a buffer‐reused VCO in the TSMC standard 0.18 μm SiGe BiCMOS processes. The die area… read more here.
Keywords: phase noise; phase; buffer reused; oscillator ... See more keywords
Novel CMOS Dual-X Current Conveyor Transconductance Amplifier Realization with Current-Mode Multifunction Filter and Quadrature Oscillator
Sign Up to like & getrecommendations! Published in 2018 at "Circuits, Systems, and Signal Processing"
DOI: 10.1007/s00034-017-0680-9
Abstract: This paper presents a novel active element, namely dual-X current conveyor transconductance amplifier. The CMOS implementation, parasitic model and characteristic performance parameters of the proposed dual-X current conveyor transconductance amplifier have been explored. The proposed… read more here.
Keywords: current mode; multifunction filter; oscillator; mode multifunction ... See more keywords
The remarkable structure of the mode shapes and eigenforces of a special multibody oscillator
Sign Up to like & getrecommendations! Published in 2018 at "Archive of Applied Mechanics"
DOI: 10.1007/s00419-017-1327-9
Abstract: This contribution deals with Mikota’s oscillator, a linear vibration chain with arbitrary n degrees of freedom. Of special interest are both the left- and right-eigenvectors of the undamped system. Investigating the first two right-eigenvectors leads to a… read more here.
Keywords: right eigenvectors; structure; oscillator; mode shapes ... See more keywords
A CMOS active inductor based digital and analog dual tuned voltage-controlled oscillator
Sign Up to like & getrecommendations! Published in 2019 at "Microsystem Technologies"
DOI: 10.1007/s00542-017-3457-y
Abstract: A fully integrated 600 MHz CMOS active inductor based voltage-controlled oscillator (VCO) is presented. The active floating inductor configuration employs voltage differencing transconductance amplifier as a building block. In the proposed circuit topology, frequency tuning is… read more here.
Keywords: cmos active; voltage; inductor based; oscillator ... See more keywords
Non-ideal source and energy harvesting
Sign Up to like & getrecommendations! Published in 2017 at "Acta Mechanica"
DOI: 10.1007/s00707-017-1878-4
Abstract: In this paper the energy harvester device with piezoelectric element is considered. In the device the mechanical energy of vibration is transformed into electric energy. The mechanical part of the system contains an oscillator which… read more here.
Keywords: energy; oscillator; non ideal; motor ... See more keywords
Clock tuning technique for a disciplined high medium–long-stability GNSS oscillator with precise clock drifts for LEO users
Sign Up to like & getrecommendations! Published in 2020 at "GPS Solutions"
DOI: 10.1007/s10291-020-01025-7
Abstract: A crucial issue of low earth orbit (LEO) navigation augmentation satellite constellation is to obtain a satellite clock of high medium–long stability (i.e., averaging time of 10–10,000 s) using a disciplined oscillator to reduce satellite… read more here.
Keywords: technique; frequency; oscillator; receiver ... See more keywords
A high linearity current-controlled CMOS relaxation oscillator with frequency self-calibration technique
Sign Up to like & getrecommendations! Published in 2017 at "Analog Integrated Circuits and Signal Processing"
DOI: 10.1007/s10470-017-0973-8
Abstract: A complementary metal oxide semiconductor relaxation oscillator adopting a new frequency self-calibration technique (FSCT) to improve the linearity is proposed in this paper. The FSCT can detect the peak voltage of the timing capacitor when… read more here.
Keywords: relaxation oscillator; frequency; oscillator; frequency self ... See more keywords
Structure-Simplified Resonant-Tunneling-Diode Terahertz Oscillator Without Metal-Insulator-Metal Capacitors
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Infrared, Millimeter, and Terahertz Waves"
DOI: 10.1007/s10762-020-00738-7
Abstract: We propose and fabricate a novel structure-simplified resonant tunneling diode (RTD) terahertz (THz) oscillator without metal-insulator-metal (MIM) capacitors. In conventional RTD THz oscillators, the DC and RF circuits are separated by MIM capacitors. In the… read more here.
Keywords: structure simplified; simplified resonant; metal; oscillator ... See more keywords
Sinusoidal oscillator parametrically forced to robust hyperchaotic states: the lumpkin case
Sign Up to like & getrecommendations! Published in 2024 at "Nonlinear Dynamics"
DOI: 10.1007/s11071-024-09896-y
Abstract: The objective of this paper is to showcase the capability of the conventional circuit structure known as the Lumpkin oscillator, widely employed in practical applications, to operate in robust chaotic or hyperchaotic steady states. Through… read more here.
Keywords: parametrically forced; sinusoidal oscillator; robust hyperchaotic; oscillator ... See more keywords
Spectroscopic study of oscillator strength and radiative decay time of colloidal CdSe quantum dots
Sign Up to like & getrecommendations! Published in 2018 at "Optical and Quantum Electronics"
DOI: 10.1007/s11082-018-1375-6
Abstract: Characterization of samples of cadmium selenide quantum dots (CdSe) QDs dissolved in toluene colloidal solutions at a concentration of 1.4 mg/ml was carried out through UV–Vis absorption and photoluminescence (PL) spectroscopy. The size-dependent absorption and red-shifted… read more here.
Keywords: quantum; radiative decay; cdse; oscillator ... See more keywords