Results 31 to 40 of about 669,562 (292)

Towards Cryophotonics: Experimental Characterization of SOA at Cryogenic Temperatures

open access: yesIEEE Photonics Journal, 2023
We present an experimental system study of the influence of cryogenic temperatures on the performance of a commercial Semiconductor Optical Amplifier (SOA) over the range 240 K – 70 K.
Maeva Franco   +3 more
doaj   +1 more source

Impact of AlGaN Barrier Thickness and Substrate Material on the Noise Characteristics of GaN HEMT

open access: yesIEEE Journal of the Electron Devices Society, 2022
In this paper, the impact of AlGaN barrier thickness ( $\text{t}_{\mathrm{ AlGaN}}$ ) and substrate leakage on the noise conductance and noise figure in GaN High Electron Mobility Transistor (HEMT) is investigated.
Anwar Jarndal   +5 more
doaj   +1 more source

Correction and Addendum for “Consistent Optical and Electrical Noise Figure” [PDF]

open access: yes, 2023
The minimum noise figure of an electrical amplifier is Fe=1. E. Desurvire’s traditional optical noise Fpnf of an optical amplifier has the minimum value Fpnf=2. If Fpnf is a noise figure then power, gain and Fe need to be redefined.
Reinhold Noe (12822926)
core   +1 more source

Multi-channel active noise cancellation using the DSP56001 (digital signal processor) [PDF]

open access: yes, 1993
The authors report on the performance of a portable active noise cancellation (ANC) system based around a PC hosted 20-MHz Motorola DSP56001 processor with a four-channel analog input/output (I/O) board connected to the real world via standard consumer ...
Weiss, Stephan   +8 more
core   +1 more source

Figure 5 [PDF]

open access: yes, 2021
Figure 5: Selection on transcriptional noise levels in segregating lacZ promoter ...
Markéta Vlková (11048709)
core   +1 more source

Low-frequency noise characterization of strained germanium pMOSFETs [PDF]

open access: yes, 2011
Low-frequency noise in strained Ge epitaxial layers, which are grown on a reverse-graded relaxed SiGe buffer layer, has been evaluated for different front-end processing conditions.
Eneman, G.   +21 more
core   +1 more source

Low noise figure C+L-band erbium-droped fiber amplifier

open access: yesDianxin kexue, 2017
A new configuration of the low noise figure C+L-band erbium-doped fiber amplifier was proposed and demonstrated.In the proposed configuration,a preamplifier was used to reduce the noise figure,and an improved double-pass configuration with a fiber bragg ...
Hangdong ZHANG, Li ZHAN
doaj   +2 more sources

New Results on the Noise Figure of HEMTs

open access: yesActive and Passive Electronic Components, 1993
In this communication, an accurate mathematical model for the noise figure of a high electron mobility transistor is developed. This model represents a substantial improvement of the Fukui model.
M. A. Grado Caffaro, M. Grado Caffaro
doaj   +1 more source

Noise-trained VGG-19 predicts human recognition thresholds. [PDF]

open access: yes, 2021
(a) Scatter plot comparing SSNR thresholds of human observers with the thresholds of standard VGG-19 (red) and noise-trained VGG-19 (blue). Each data point depicts the SSNR threshold for an individual object image.
Hojin Jang (11819811)   +2 more
core   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

open access: yesFEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho   +3 more
wiley   +1 more source

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