Results 21 to 30 of about 1,987,057 (329)

Hybrid MIMO Architectures for Millimeter Wave Communications: Phase Shifters or Switches? [PDF]

open access: yesIEEE Access, 2015
Hybrid analog/digital multiple-input multiple-output architectures were recently proposed as an alternative for fully digital-precoding in millimeter wave wireless communication systems.
Roi Méndez-Rial   +4 more
semanticscholar   +1 more source

Mathematical model of a serine integrase-controlled toggle switch with a single input [PDF]

open access: yes, 2018
Dual-state genetic switches that can change their state in response to input signals can be used in synthetic biology to encode memory and control gene expression.
Colloms, Sean D.   +3 more
core   +1 more source

Design optimization for energy-efficient pulse-switching networks in carrier-injection based Si-photonics [PDF]

open access: yes, 2019
We compare pulse-switching operations in MZI- and ring-switches both experimentally and based on large-signal circuit simulations. With a modification in switch design and with optimization of phase modulator lengths, we show high-speed switches with ...
Becker, Hanna   +4 more
core   +2 more sources

ZVS Control strategy of dual active bridge DC/DC converter with triple-phase-shift modulation considering RMS current optimization

open access: yesThe Journal of Engineering, 2019
Dual active bridge (DAB) DC/DC converter is an ideal high-power bidirectional DC/DC converter with multiple control methods. In this paper, the working characteristics of the DAB converters are analysed by the example of medium power mode, in which the ...
Kai Shen   +7 more
doaj   +1 more source

Compact Wavelength Selective Crossbar Switch with Cascaded First Order Micro-Ring Resonators

open access: yesPhotonics, 2022
We demonstrate a compact 4×4 wavelength selective switch with 50% fewer electrical signal pads as compared with our previous generation. We report loss and crosstalk for different paths of the switch.
Akhilesh S. P. Khope   +5 more
doaj   +1 more source

Design and Analysis of the Capacitive RF MEMS Switches with Support Pillars

open access: yesSensors, 2022
Conventional parallel capacitive RF MEMS switches have a large impact during the suction phase. In general, RF MEMS switches have to be switched on and off in a considerably fast manner.
Hongbo Feng   +3 more
doaj   +1 more source

Ultra-fast hybrid systems for protecting direct current circuits with high magnetic energy [PDF]

open access: yesBulletin of the Polish Academy of Sciences: Technical Sciences, 2021
The article presents a new generation of ultra-fast hybrid switching systems (USH) for reliable, ultra-fast protection of various medium and low voltage DC systems (MVDC and LVDC). The DC switch-off takes place in a vacuum chamber (VC) cooperating with a 
Marek Bartosik   +2 more
doaj   +1 more source

What Drives Task Performance During Animal Fluency in People With Alzheimer’s Disease?

open access: yesFrontiers in Psychology, 2020
BackgroundAnimal fluency is a widely used task to assess people with Alzheimer’s disease (AD) and other neurological disorders. The mechanisms that drive performance in this task are argued to rely on language and executive functions.
Adrià Rofes   +5 more
doaj   +1 more source

Cell-level path allocation in a three-stage ATM switch [PDF]

open access: yes, 1994
A method of cell-level path allocation for three-stage ATM switches has previously been proposed by the authors. The performance of ATM switches using this path allocation algorithm has been evaluated by simulation, and is described. Both uniform and non-
Collier, Martin, Curran, Thomas
core   +1 more source

Nucleosome Switches [PDF]

open access: yesPhysical Review Letters, 2008
We present a statistical-mechanical model for the positioning of nucleosomes along genomic DNA molecules as a function of the strength of the binding potential and the chemical potential of the nucleosomes. We show that a significant section of the DNA is composed of two-level nucleosome switching regions where the nucleosome distribution undergoes a ...
David J, Schwab   +3 more
openaire   +2 more sources

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