Articles with "four channel" as a keyword



Twenty‐four–channel high‐impedance glove array for hand and wrist MRI at 3T

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Published in 2021 at "Magnetic Resonance in Medicine"

DOI: 10.1002/mrm.29147

Abstract: To present a novel 3T 24‐channel glove array that enables hand and wrist imaging in varying postures. read more here.

Keywords: twenty four; channel high; hand wrist; four channel ... See more keywords

Improving quality of service in four-channel WDM ethernet passive optical network

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Published in 2018 at "Optical and Quantum Electronics"

DOI: 10.1007/s11082-018-1637-3

Abstract: Energy-efficiency and green communications have become dominant topics related to access network implementation, since their energy consumption is a major contributor of energy consumption within the Internet. In this paper we analyze an implementation of… read more here.

Keywords: network; ethernet passive; energy; four channel ... See more keywords

A semi-analytical method for transient temperature field calculation in a parallel-flow four-channel four-fluid heat exchanger

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Published in 2019 at "International Journal of Heat and Mass Transfer"

DOI: 10.1016/j.ijheatmasstransfer.2019.01.138

Abstract: Abstract A set of partial differential equations which describes transient behavior of parallel-flow four-channel four-fluid heat exchangers is solved using Laplace transform and numerical inverse algorithm. A case of a temperature disturbance in one channel… read more here.

Keywords: flow four; four channel; heat; parallel flow ... See more keywords
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A 1.3-μm four-channel directly modulated laser array fabricated by SAG-Upper-SCH technology

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Published in 2017 at "Optics Communications"

DOI: 10.1016/j.optcom.2016.09.057

Abstract: Abstract A monolithically integrated four-channel directly modulated laser (DML) array working at the 1.3-μm band is demonstrated. The laser was manufactured by using the techniques of selective area growth (SAG) of the upper separate confinement… read more here.

Keywords: laser; channel directly; four channel; modulated laser ... See more keywords

Control features of a four channel resonant buck converter

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Published in 2019 at "IET Power Electronics"

DOI: 10.1049/iet-pel.2018.6246

Abstract: This study presents the steady-state behaviour of a new four channel resonant DC/DC buck converter in symmetrical operation both in continuous current conduction mode (CCM) and in discontinuous current conduction mode (DCM). Having two inputs… read more here.

Keywords: four channel; control; channel resonant; buck converter ... See more keywords

RoboPol: a four-channel optical imaging polarimeter

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Published in 2019 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/stz557

Abstract: We present the design and performance of RoboPol, a four-channel optical polarimeter operating at the Skinakas Observatory in Crete, Greece. RoboPol is capable of measuring both relative linear Stokes parameters q and u (and the… read more here.

Keywords: channel optical; polarimeter; polarization; four channel ... See more keywords

A 28-GHz Four-Channel Beamforming Front-End IC With Dual-Vector Variable Gain Phase Shifters for 64-Element Phased Array Antenna Module

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Published in 2023 at "IEEE Journal of Solid-State Circuits"

DOI: 10.1109/jssc.2022.3214436

Abstract: A 28-GHz fully differential four-channel beamforming front-end IC with variable gain phase shifters (VGPSs) is presented, of which orthogonal phase and gain control is achieved in a single block using the proposed dual-vector synthesis technique.… read more here.

Keywords: gain; power; phase; four channel ... See more keywords

A Four-Channel TDM Clocked-Analog LDO Using a Shared Compensation Block for Thermo-Optic Tuning

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Published in 2024 at "IEEE Transactions on Circuits and Systems I: Regular Papers"

DOI: 10.1109/tcsi.2023.3334155

Abstract: This paper presents a four-channel time-division-multiplexing clocked-analog low-dropout regulator (TDM CLDO) using a novel current Miller compensation with a degenerated resistor (CMDR) block for thermo-optic tuning in silicon photonics. Previous TDM LDOs require a dedicated… read more here.

Keywords: four channel; tdm; capacitor; block ... See more keywords

Four-Channel Pulse Extraction and Matching Method for Loose Particle Localization on Sealed Electronic Equipment

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Published in 2025 at "IEEE Transactions on Instrumentation and Measurement"

DOI: 10.1109/tim.2025.3547476

Abstract: The existing loose particle localization research for sealed electronic equipment (SEE) focuses on the selection and optimization of classifiers, processing and optimization of datasets, and extraction of multidomain signal features, while neglecting the processing of… read more here.

Keywords: loose particle; pulse extraction; four channel; particle ... See more keywords

Numerical Simulation and Evaluation of a Four-Channel-by-Four-Channel Double-Nuclear RF Coil for 1H MRI and 31P MRSI at 7 T

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Published in 2018 at "IEEE Transactions on Magnetics"

DOI: 10.1109/tmag.2018.2856529

Abstract: Radio frequency (RF) coils are an important component of magnetic resonance imaging (MRI) equipment. However, the field of ultrahigh-field RF coil research is fraught with technical challenges which limit the development of magnetic resonance technology.… read more here.

Keywords: field; four channel; field mri; coil ... See more keywords

A V-Band Four-Channel Phased Array Transmitter Front-End With 0.7° Phase Step and 20 dB Gain Dynamic Range

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Published in 2024 at "IEEE Transactions on Microwave Theory and Techniques"

DOI: 10.1109/tmtt.2024.3373752

Abstract: This article reports a $V$ -band phased array transmitter front-end module, in which a four-channel RF beamforming IC is included with power amplifiers (PAs), active phase shifters, and power dividers. The PA is linearized by… read more here.

Keywords: four channel; transmitter front; array transmitter; phased array ... See more keywords