Results 31 to 40 of about 81,228 (300)

Noise performance of frequency- and phase-locked CW magnetrons operated as current-controlled oscillators. [PDF]

open access: yes, 2005
Low-power continuous wave ``cooker'' magnetrons driven from industrial-quality switch-mode power supplies have been frequency locked by driving them as current-controlled oscillators in a phase-lock loop (PLL).
Carter, Richard G.   +2 more
core   +4 more sources

Electronically tuned 23 GHz Gunn oscillators for a microwave datalink [PDF]

open access: yes, 1988
Includes bibliographical references.A market has been identified for 23 GHz, short-haul, low-capacity, digital radio. The dissertation presents the development of the varactor controlled Gunn oscillators that constitute the crystal locked microwave ...
Kratzenstein, L
core   +1 more source

Simple Oscillator with Enlarged Tunability Range Based on ECCII and VGA Utilizing Commercially Available Analog Multiplier

open access: yesMeasurement Science Review, 2016
This work presents an example of implementation of electronically controllable features to an originally unsuitable circuit structure of oscillator. Basic structure does not allow any electronic control and has mutually dependent condition of oscillation
Sotner Roman   +5 more
doaj   +1 more source

CMOS time-to-digital converters for mixed-mode signal processing

open access: yesThe Journal of Engineering, 2014
This study provides an in-depth review of the principles, architectures and design techniques of CMOS time-to-digital converters (TDCs). The classification of TDCs is introduced.
Fei Yuan
doaj   +1 more source

Finite oscillator models: the Hahn oscillator [PDF]

open access: yesJournal of Physics A: Mathematical and Theoretical, 2011
A new model for the finite one-dimensional harmonic oscillator is proposed based upon the algebra u(2)_α. This algebra is a deformation of the Lie algebra u(2) extended by a parity operator, with deformation parameter α. A class of irreducible unitary representations of u(2)_α is constructed.
Jafarov, Elchin   +2 more
openaire   +3 more sources

Oscillator-Based Processing Unit for Formant Recognition

open access: yesInformation
Oscillatory neural networks have so far been successfully applied to a number of computing problems, such as associative memories, or to handle computationally hard tasks.
Tamás Rudner-Halász   +2 more
doaj   +1 more source

Biophysical clocks face a trade-off between internal and external noise resistance

open access: yeseLife, 2018
Many organisms use free running circadian clocks to anticipate the day night cycle. However, others organisms use simple stimulus-response strategies (‘hourglass clocks’) and it is not clear when such strategies are sufficient or even preferable to free ...
Weerapat Pittayakanchit   +4 more
doaj   +1 more source

Oscillator death in coupled biochemical oscillators

open access: yesMathematics of Control, Signals, and Systems, 2023
Circadian rhythm, cell division and metabolic oscillations are rhythmic cellular behaviors that must be both robust but also to respond to changes in their environment. In this work, we study emergent behavior of coupled biochemical oscillators, modeled as repressilators.
Tomás Gedeon, Breschine Cummins
openaire   +3 more sources

Towards Portable MEMS Oscillators for Sensing Nanoparticles

open access: yesSensors, 2022
This paper reports on the design, and implementation of piezoelectric-on-silicon MEMS resonators installed within a portable experimental setup for sensing nanoparticles in a laboratory environment.
Malar Chellasivalingam   +4 more
doaj   +1 more source

Coupled-Oscillators [PDF]

open access: yesInternational Astronomical Union Colloquium, 1993
AbstractModal coupling oscillation models for the stellar radial pulsation and coupled-oscillators are reviewed. Coupled-oscillators with the second-order and third-order terms seemed to behave non-systematically. Using the equation by Schwarzschild and Savedoff (1949) with the dissipation term of van del Pol’s type which is third-order, we demonstrate
openaire   +2 more sources

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