Results 91 to 100 of about 1,442,765 (346)

Learning to measure resistance noise demystifies the ubiquitous 1/f excess noise [PDF]

open access: yesarXiv, 2019
To study resistance noise (DeltaR) by a spectrum analyzer we must convert this noise into a noise voltage (DeltaV) at the reach of such generalized voltmeter. Whenever a current Iconv is set in a resistor to convert its resistance noise into noise voltage by Ohm's Law: DeltaV=DeltaR*Iconv, the converted noise thus obtained does not track DeltaRte (its ...
arxiv  

Modal analysis of noise propagation in a femtosecond oscillator [PDF]

open access: yes, 2019
We study noise propagation dynamics in a femtosecond oscillator by injecting external noise on the pump intensity. We utilize a spectrally-resolved homodyne detection technique that enables simultaneous measurement of amplitude and phase quadrature noises of different spectral bands of the oscillator.
arxiv   +1 more source

Feature Noise Boosts DNN Generalization under Label Noise [PDF]

open access: yesarXiv, 2023
The presence of label noise in the training data has a profound impact on the generalization of deep neural networks (DNNs). In this study, we introduce and theoretically demonstrate a simple feature noise method, which directly adds noise to the features of training data, can enhance the generalization of DNNs under label noise.
arxiv  

Gain Dependence of the Noise in the Single Electron Transistor

open access: yes, 1998
An extensive investigation of low frequency noise in single electron transistors as a function of gain is presented. Comparing the output noise with gain for a large number of bias points, it is found that the noise is dominated by external charge noise.
A. N. Korotkov   +5 more
core   +1 more source

Measurements of noise in Josephson-effect mixers [PDF]

open access: yes, 1995
We present new heterodyne receiver results obtained at 100 GHz using resistively-shunted Nb and NbN tunnel junctions. In addition, we have carried out accurate measurements of the available noise power of these devices at the L-band (1.5 GHz) IF ...
LeDuc, Henry G.   +4 more
core   +1 more source

Multi‐institutional study on image quality for a novel CBCT solution on O‐ring linac

open access: yesJournal of Applied Clinical Medical Physics, EarlyView.
Abstract Introduction This work presents a multi‐institutional study on image quality provided by a novel cone beam computed tomography (CBCT). The main goal is to investigate the consistency of imaging performance across multiple institutions.
Luis Agulles‐Pedrós   +11 more
wiley   +1 more source

Microscopic origin of low frequency noise in MoS2 field-effect transistors

open access: yesAPL Materials, 2014
We report measurement of low frequency 1/f noise in molybdenum di-sulphide (MoS2) field-effect transistors in multiple device configurations including MoS2 on silicon dioxide as well as MoS2-hexagonal boron nitride (hBN) heterostructures.
Subhamoy Ghatak   +4 more
doaj   +1 more source

Low frequency noise in advanced Si bulk and SOI MOSFETs

open access: yesJournal of Telecommunications and Information Technology, 2005
A review of recent results concerning the low frequency noise in modern CMOS devices is given. The approaches such as the carrier number and the Hooge mobility fluctuations used for the analysis of the noise sources are presented and illustrated through
Jalal Jomaah   +2 more
doaj   +1 more source

Noise Flow: Noise Modeling with Conditional Normalizing Flows [PDF]

open access: yesarXiv, 2019
Modeling and synthesizing image noise is an important aspect in many computer vision applications. The long-standing additive white Gaussian and heteroscedastic (signal-dependent) noise models widely used in the literature provide only a coarse approximation of real sensor noise.
arxiv  

Temperature square dependence of the low frequency 1/f charge noise in the Josephson junction qubits

open access: yes, 2006
To verify the hypothesis about the common origin of the low frequency 1/f noise and the quantum f noise recently measured in the Josephson charge qubits, we study temperature dependence of the 1/f noise and decay of coherent oscillations.
J. S. Tsai   +6 more
core   +1 more source

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