Results 51 to 60 of about 14,850,784 (326)
Hearing in young adults, part II : the effects of recreational noise exposure [PDF]
, 2015 Great concern arises from recreational noise exposure, which might lead to noise-induced hearing loss in young adults. The objective of the current study was to evaluate the effects of recreational noise exposure on hearing function in young adults.
Dhooge, Ingeborg +2 more
core +4 more sources
Low-noise kinetic inductance traveling-wave amplifier using three-wave mixing. [PDF]
Applied Physics Letters, 2015 We have fabricated a wide-bandwidth, high dynamic range, low-noise cryogenic amplifier based on a superconducting kinetic inductance traveling-wave device. The device was made from NbTiN and consisted of a long, coplanar waveguide on a silicon chip.
M. Vissers +6 more
semanticscholar +1 more source
A 0.5-V Four-Stage Amplifier Using Cross-Feedforward Positive Feedback Frequency Compensation
Chips, 2023 This paper presents a low-voltage CMOS four-stage amplifier operating in the subthreshold region. The first design technique includes the cross-feedforward positive feedback frequency compensation (CFPFC) for obtaining better bandwidth efficiency in a ...
Feifan Gao, Pak Kwong Chan
doaj +1 more source
Low-Noise 3-D Avalanche Photodiodes
IEEE Photonics Journal, 2016 In this paper, we present a new 3-D structure for the InP-based avalanche photodiode, aiming at decreasing the excess noise factor. To the best of our knowledge, it is the first time new device designs based on the recently developed 3-D spatial dead ...
Zhiwei Wu +3 more
doaj +1 more source
Ultrastable low-noise current amplifier
, 2014 An ultrastable low-noise current amplifier (ULCA) is presented. The ULCA is a non-cryogenic instrument based on specially designed operational amplifiers and resistor networks.
Ahlers, Franz Josef +4 more
core +1 more source
IEEE AccessThis study reports low power-dissipation (PD) and low noise-figure (NF) ultra-wideband CMOS variable-gain amplifiers (VGAs). VGA1 and VGA2 use coupled microstrip-line (CL) neutralization with an adjustable-gain-flatness inductor and multiple inductive ...
Jin-Fa Chang
doaj +1 more source
Ultra low noise YBCO nanoSQUIDs implementing nanowires [PDF]
, 2014 We present results on ultra low noise YBa$_2$Cu$_3$O$_{7-\delta}$ nano Superconducting QUantum Interference Devices (nanoSQUIDs). To realize such devices, we implemented high quality YBCO nanowires, working as weak links between two electrodes.
Arpaia, Riccardo +5 more
core +2 more sources
Low-frequency charge noise in Si/SiGe quantum dots [PDF]
Physical review B, 2019 Electron spins in silicon have long coherence times and are a promising qubit platform. However, electric field noise in semiconductors poses a challenge for most single- and multi-qubit operations in quantum-dot spin qubits.
Elliot J. Connors +4 more
semanticscholar +1 more source
Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM
FEBS Letters, EarlyView.Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley +1 more source
SensorsThis paper presents a 35 nV/√Hz analog front-end (AFE) circuitdesigned in the UMC 40 nm CMOS technology for the acquisition of biopotential signal. The proposed AFE consists of a capacitive-coupled instrumentation amplifier (CCIA) and a combination of a ...
Lu Liu +5 more
doaj +1 more source