Results 11 to 20 of about 2,131 (218)

A monolithic gallium nitride‐based two‐phase synchronous buck converter with high operating frequency

open access: yesElectronics Letters, 2023
The need for a high‐frequency and high‐efficiency gallium nitride (GaN)‐based buck converter that can be controlled directly by a low swing pulse width‐modulated (PWM) signal, without the need for additional buffers or preamplifiers, poses a significant ...
Longkun Lai   +3 more
doaj   +1 more source

Traveling-wave parametric amplifier–induced qubit dephasing: analysis and mitigation

open access: yesChip, 2023
The mitigation of dephasing poses a significant challenge to improving the performance of error-prone superconducting quantum computing systems. Here, the dephasing of a transmon qubit in a dispersive readout regime was investigated by adopting a ...
Yingshan Zhang   +10 more
doaj   +1 more source

The investigation and comparison of three photodiode-based candidate structures for detecting the X-ray [PDF]

open access: yesمجله علوم و فنون هسته‌ای, 2022
Recently, research has shown that PIN photodiodes can be used in ionization radiation detection, especially in medical applications. In this research, three photodiode-based X-ray detectors have been implemented.
A.R. Mousazadeh Moghaddam   +2 more
doaj   +1 more source

Development of chopper-stabilized ASIC preamplifier for improving noise equivalent magnetic induction of search coil magnetometer probing space plasma waves

open access: yesEarth, Planets and Space, 2023
Space-based search coil (SC) magnetometers connected to preamplifiers have been used to investigate magnetic field vectors of plasma waves from 100 mHz to 10 kHz for understanding magnetospheric dynamics.
Mitsunori Ozaki   +3 more
doaj   +1 more source

Design and verification of a radiation detector's electronics system

open access: yesThe Journal of Engineering, 2019
The electronics system is a crucial component of a nuclear radiation detector whose performance directly affects the accuracy of nuclear radiation monitoring. The design of a neutron detector's electronics system is introduced here.
Siming Guo   +3 more
doaj   +1 more source

Whose Line Sound is it Anyway? Identifying the Vocalizer on Underwater Video by Localizing with a Hydrophone Array [PDF]

open access: yesAnimal Behavior and Cognition, 2016
A new device that combined high-resolution (1080p) wide-angle video and three channels of high-frequency acoustic recordings (at 500 kHz per channel) in a portable underwater housing was designed and tested with wild bottlenose and spotted dolphins in ...
Matthias Hoffmann-Kuhnt   +4 more
doaj   +1 more source

Design and Construction of Novel Instrumentation for Low-Field MR Tomography

open access: yesMeasurement Science Review, 2018
Magnetic resonance imaging (MRI) is a very popular tool for diagnostic applications and research studies. Low-field MR scanners, usually with an open design, are suitable for claustrophobic and obese patients, as well as for children, who may be fearful ...
Gogola Daniel   +3 more
doaj   +1 more source

Modular spectrometer for quality assessment of solid-state detector technology [PDF]

open access: yesTekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2013
The authors consider application of charge sensitive preamplifiers and spectrometric amplifiers for transformation and amplification of signals of solid state detectors.
Perevertaylo V. L.   +5 more
doaj   +2 more sources

100-Gbps per-channel all-optical wavelength conversion without pre-amplifiers based on an integrated nanophotonic platform

open access: yesNanophotonics, 2023
All-optical wavelength conversion based on four-wave mixing attracts intense interest in many areas, especially in optical fiber communications, due to the advantages of femtosecond response, modulation-format transparency, and high flexibility in ...
Zhao Ping   +4 more
doaj   +1 more source

Improving the Signal to Noise Ratio of QTF Preamplifiers Dedicated for QEPAS Applications

open access: yesApplied Sciences, 2020
The signal-to-noise ratio (SNR) is a major factor that limits the detection sensitivity of quartz-enhanced photoacoustic spectroscopy (QEPAS) sensors. The higher the electrical signal level compared to the noise amplitude is the lower the concentration ...
Piotr Z. Wieczorek   +2 more
doaj   +1 more source

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