Results 31 to 40 of about 412,404 (295)
A Low Power Low Phase Noise Oscillator for MICS Transceivers
Sensors, 2017 A low-power, low-phase-noise quadrature oscillator for Medical Implantable Communications Service (MICS) transceivers is presented. The proposed quadrature oscillator generates 349~689 MHz I/Q (In-phase and Quadrature) signals covering the MICS band. The
Dawei Li +3 more
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Sensors, 2018 In this paper, a novel single-axis MEMS tilt sensor is presented. It contains a hexagonal proof mass, six micro-lever force amplifiers and three double-ended-tuning fork (DETF) resonant strain gauges. The proof mass is placed in the center with the micro-
Shudong Wang +4 more
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Fabrication of Fiber Bragg Gratings by Visible Femtosecond Laser for Multi-kW Fiber Oscillator
IEEE Photonics Journal, 2022 In this paper, we fabricate a pair of fiber Bragg gratings (FBGs) in large mode area double cladding fiber (LMA-DCF, core/inner cladding diameter: 20/400 μm) by visible (515 nm) femtosecond laser and phase mask for the first time to ...
Hongye Li +9 more
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Phase transitions in a mechanical system coupled to Glauber spins
, 2010 A harmonic oscillator linearly coupled with a linear chain of Ising spins is investigated. The $N$ spins in the chain interact with their nearest neighbours with a coupling constant proportional to the oscillator position and to $N^{-1/2}$, are in ...
Bonilla, L. L., Carpio, A., Prados, A.
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OSCILLATING FILAMENTS. I. OSCILLATION AND GEOMETRICAL FRAGMENTATION [PDF]
The Astrophysical Journal, 2017 ABSTRACT We study the stability of filaments in equilibrium between gravity and internal as well as external pressure using the grid-based AMR code RAMSES. A homogeneous, straight cylinder below a critical line mass is marginally stable. However, if the cylinder is bent, such as with a slight sinusoidal perturbation, an otherwise stable ...
Matthias Gritschneder +2 more
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Celebration of the centenary of a major scientific milestone thanks to Heinrich Barkhausen
International Journal for Simulation and Multidisciplinary Design Optimization, 2020 Brief history of a perfect optimization with the oscillation condition and microwave tube as well as contributions to oscillators at the occasion of the centenary of a great step forward thanks to genius Heinrich Barkhausen with his pages of glory in the
Salzenstein Patrice +1 more
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, 2016 In the optomechanical cooling of a dispersively coupled oscillator, it is only possible to reach the oscillator ground state in the resolved sideband regime, where the cavity-mode line width is smaller than the resonant frequency of the mechanical ...
Chen, Zeng-Bing +3 more
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Journal of Mathematical Physics, 2002 A generalized oscillator algebra is proposed and the braided Hopf algebra structure for this generalized oscillator is investigated. Using the solutions for the braided Hopf algebra structure, two types of braided Fibonacci oscillators are introduced. This leads to two types of braided Biedenharn–Macfarlane oscillators as special cases of the Fibonacci
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Progress in Particle and Nuclear Physics, 2013 This review summarizes recent experimental and theoretical progress in determining neutrino mixing angles and masses through neutrino oscillations. We describe the basic physics of oscillation phenomena in vacuum and matter, as well as the status of solar, reactor, atmospheric, and accelerator neutrino experiments that probe these phenomena.
Balantekin, A. B., Haxton, W. C.
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SYNCHRONOUS OSCILLATIONS IN VAN DER POL GENERATOR WITH MODULATED NATURAL FREQUENCY
Radio Physics and Radio Astronomy, 2015 The synchronous operation of Van Der Pole generator with the low-frequency modulated natural frequency has been investigated. The presence of low-frequency modulation is shown to lead to formation of additional synchronization regions.
A. Yu. Nimets, D. M. Vavriv
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