Integrated Optical System for Mobile Atomic Interferometric Gravity Gradient. [PDF]
Wang J, Han B, Bai J, Wang Y.
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DEVELOPMENT OF FBAR BASED ULTRA LOW PHASE NOISE RADIO FREQUENCY OSCILLATOR
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Research on Damping Control Index of Ultra-Low-Frequency Oscillation in Hydro-Dominant Power Systems
In recent years, ultra-low-frequency oscillation (ULFO) is a prominent problem in power systems of dominant hydropower. In order to suppress ULFO, the most effective strategy is the governor parameters optimization to improve the system damping within ...
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A CMOS Integrated Low-Power, Ultra-Low-Frequency Relaxation Oscillator for Neuromorphic Applications
2021 IEEE International Midwest Symposium on Circuits and Systems (MWSCAS), 2021In the emulation of dynamic activities of neurons, relaxation oscillator plays a decisive role in the form of frequency coding and frequency synchronization. This paper presents a programmable ultra-low-frequency relaxation oscillator for neuromorphic network applications. The oscillator adopts a 250 pA charging current to achieve ultra-low oscillation
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Frequency Behaviour of FeFET-Based Ultra-Low-Power Coupled Oscillator Neurons
2020 IEEE International Symposium on Circuits and Systems (ISCAS), 2020The inefficiencies of von-Neumann computing architectures in performing high-level machine learning and neuromorphic operations have led to the need for new computational systems such as oscillatory neural networks, that are designed using emerging technologies.
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Limit cycle in the ultra-low-frequency oscillation of islanded power systems
2017 13th IEEE International Conference on Control & Automation (ICCA), 2017Ultra-low-frequency oscillation with almost constant amplitude is a kind of frequency oscillation in power system. It has occurred in several hydro-dominant islanded power systems. With the nonlinearity of hydraulic turbines, a nonlinear model of power system is built in the paper.
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Generation of ultra-low jitter radio frequency phase pulses by a phase-locked oscillator
Optics Letters, 2021We demonstrate a novel, to the best of our knowledge, method for mode locking of an oscillator, which is based on the injection of a strong sinusoidal signal from an external source into the cavity. The oscillator generates a low phase noise carrier signal with a train of ultra-low jitter, short 2 π phase pulses at a repetition ...
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Mechanism and Measurement of Ultra-Low-Frequency Oscillations in Asynchronous Networks
2018 IEEE Power & Energy Society General Meeting (PESGM), 2018The asynchronous interconnection mode between the Yunnan Province Power Grid and China Southern Power Grid was implemented in 2016. However, during the practical experiment of raising HVDC power in the asynchronous mode, the frequency of the Yunnan Power Grid oscillated at ultra-low frequency for a long period.
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