Results 51 to 60 of about 198,553 (294)

Balanced InP/InGaAs Photodiodes With 1.5-W Output Power

open access: yesIEEE Photonics Journal, 2013
We report InP/InGaAs modified unitraveling-carrier balanced photodiodes (PDs). The back-illuminated PDs were flip-chip bonded on diamond submounts for enhanced heat sinking.
Qiugui Zhou   +6 more
doaj   +1 more source

Electromagnetic compatibility in myoelectrode amplifiers: Isolation, impedance and CMRR [PDF]

open access: yes, 2010
SUMMARY: Electromagnetic compatibility of myoelectrode amplifiers for prosthetic control is important for safe operation in electrically noisy conditions.
Poulton, Adrian
core  

Innovative Processing of Compacted Waste Aluminum Alloy Powders via Controlled Remelting and Solidification

open access: yesAdvanced Engineering Materials, EarlyView.
This study demonstrates an efficient recycling route for out‐of‐spec AlSi10Mg atomized powders through compaction and arc remelting followed by suction casting. By correlating compaction load, cooling rate, and resulting microstructure, we show that intermediate pressures (50–80 kN) and rapid cooling refine dendrites, reduce porosity, and enhance ...
Mila Christy de Oliveira   +4 more
wiley   +1 more source

A Fully Differential Analog Front-End for Signal Processing from EMG Sensor in 28 nm FDSOI Technology

open access: yesSensors, 2023
This paper presents a novel analog front-end for EMG sensor signal processing powered by 1 V. Such a low supply voltage requires specific design steps enabled using the 28 nm fully depleted silicon on insulator (FDSOI) technology from STMicroelectronics.
Vilem Kledrowetz   +3 more
doaj   +1 more source

New approaches to measurement of operational amplifier common-mode rejection ratio in the frequency domain [PDF]

open access: yesIEE Proceedings - Circuits, Devices and Systems, 1995
Four test circuits for measuring operational amplifier common-mode rejection ratio (CMRR) are described and analysed. Sample results are presented for the uA741, characterising the variation of CMRR with frequency. Two new test circuits and a variation on an existing technique offer significant improvements over previous methods and are capable of ...
Brinson, Mike, Faulkner, D. J.
openaire   +1 more source

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

open access: yesAdvanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios   +5 more
wiley   +1 more source

Enhancing CMRR in Fully Differential Amplifiers via Power Supply Bootstrapping

open access: yesChips
Fully differential amplifier circuits are well suited for instrumentation front ends and signal-conditioning applications. They offer high common-mode rejection ratios (CMRRs) regardless of the passive component tolerances but remain sensitive to ...
Enrique M. Spinelli   +3 more
doaj   +1 more source

Thin Film Differential Photosensor for Reduction of Temperature Effects in Lab-on-Chip Applications

open access: yesSensors, 2016
This paper presents a thin film structure suitable for low-level radiation measurements in lab-on-chip systems that are subject to thermal treatments of the analyte and/or to large temperature variations.
Giampiero de Cesare   +3 more
doaj   +1 more source

On the Detectability of Galactic Dark Matter Annihilation into Monochromatic Gamma-rays

open access: yes, 2010
Monochromatic gamma-rays are thought to be the smoking gun signal for identifying the dark matter annihilation. However, the flux of monochromatic gamma-rays is usually suppressed by the virtual quantum effects since dark matter should be neutral and ...
Abdo A A   +17 more
core   +1 more source

Systematic Comparison of HF CMOS Transconductors [PDF]

open access: yes, 2003
Transconductors are commonly used as active elements in high-frequency (HF) filters, amplifiers, mixers, and oscillators. This paper reviews transconductor design by focusing on the V-I kernel that determines the key transconductor properties.
Klumperink, Eric A.M., Nauta, Bram
core   +3 more sources

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