Results 81 to 90 of about 30,784 (218)

A New Technique for the Design of Multi-Phase Voltage Controlled Oscillators [PDF]

open access: yes, 2017
© 2017 World Scientific Publishing Company.In this work, a novel circuit structure for second-harmonic multi-phase voltage controlled oscillator (MVCO) is presented.
Huang, Pan, Sun, Jingru, Sun, Yichuang
core   +2 more sources

Characterization of Fuel Rods Supported by Dimple‐Less Spacer Grids and Subjected to Nonlinear Vibrations

open access: yesInternational Journal of Mechanical System Dynamics, Volume 6, Issue 1, Page 3-21, March 2026.
ABSTRACT An experimental campaign was undertaken to demonstrate the applicability of the Bouc–Wen hysteretic model to describe the hysteretic system of the recent Framatome dimple‐less spacer grid design for Pressurized Water Reactors. The experimental setup subjected a reduced‐length fuel rod, supported at both ends by dimple‐less grids, to forced ...
Giovanni Ferrari   +3 more
wiley   +1 more source

Current-Mode Quadrature Oscillator Simple Designs

open access: yesJournal of Low Power Electronics and Applications
Simple designs of current-mode quadrature oscillators are presented in this work. The main achievement, with regards to the literature, is the minimization of the required transistor count accomplished by the utilization of a suitable lossless ...
Julia Nako   +2 more
doaj   +1 more source

Single‐ and Two‐Mode Squeezing by Modulated Coupling to a Rabi Driven Qubit

open access: yesAdvanced Quantum Technologies, Volume 9, Issue 3, March 2026.
A scheme for the generation of single‐ and two‐mode conditional‐squeezing of quantum harmonic oscillators by modulated coupling to a Rabi‐driven qubit is proposed. Simulations of a circuit QED system employing the scheme predict squeezing of more than 12dB and preparation of a superposition of 4dB squeezed states.
Eliya Blumenthal   +3 more
wiley   +1 more source

Sinusoidal and Relaxation Wide Range Voltage Controlled Oscillators

open access: yesCommunications, 2015
This paper presents a sinusoidal Wien-bridge and square wave wide range voltage controlled oscillators. The square wave oscillator is based on relaxation (Schmitt trigger) topology.
Milan Stork
doaj   +1 more source

Quantum correlations of light due to a room temperature mechanical oscillator for force metrology

open access: yes, 2016
The coupling of laser light to a mechanical oscillator via radiation pressure leads to the emergence of quantum mechanical correlations between the amplitude and phase quadrature of the laser beam. These correlations form a generic non-classical resource
Fedorov, Sergey A.   +5 more
core   +2 more sources

Phase Change Material‐Driven Tunable Metasurface for Adaptive Terahertz Sensing and Communication in 6G Perceptive Networks

open access: yesAdvanced Functional Materials, Volume 36, Issue 12, 9 February 2026.
This study explores the benefits of metasurfaces made from functional materials, highlighting their ability to be adapted and improved for various high‐frequency applications, including communications and sensing. It first demonstrates the potential of these functional material‐based metasurfaces to advance the field of sub‐THz perceptive networks ...
Yat‐Sing To   +5 more
wiley   +1 more source

Electronically Tunable Quadrature Sinusoidal Oscillator with Equal Output Amplitudes during Frequency Tuning Process

open access: yesJournal of Electrical and Computer Engineering, 2017
A new configuration of voltage-mode quadrature sinusoidal oscillator is proposed. The proposed oscillator employs two voltage differencing current conveyors (VDCCs), two resistors, and two grounded capacitors.
Den Satipar   +2 more
doaj   +1 more source

Operational Theory of Homodyne Detection

open access: yes, 1996
We discuss a balanced homodyne detection scheme with imperfect detectors in the framework of the operational approach to quantum measurement. We show that a realistic homodyne measurement is described by a family of operational observables that depends ...
B. L. Schumaker   +28 more
core   +1 more source

Control of Open Quantum Systems via Dynamical Invariants

open access: yesAdvanced Quantum Technologies, Volume 9, Issue 2, February 2026.
Dynamical invariants are used to reverse‐engineer control fields for open quantum systems described by time‐dependent Lindblad master equations. By minimizing an analytic leakage functional, the protocol dynamically steers the state along an effectively decoherence‐free path without costly iterative propagation.
Loris M. Cangemi   +4 more
wiley   +1 more source

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