Results 71 to 80 of about 13,582,991 (332)
Power Talk in DC Micro Grids: Constellation Design and Error Probability Performance
, 2015 Power talk is a novel concept for communication among units in a Micro Grid (MG), where information is sent by using power electronics as modems and the common bus of the MG as a communication medium.
Angjelichinoski, Marko +3 more
core +1 more source
Experimental Demonstration of Geometrically-Shaped Constellations Tailored to the Nonlinear Fibre Channel [PDF]
, 2018 A geometrically-shaped 256-QAM constellation, tailored to the nonlinear optical fibre channel, is experimentally demonstrated. The proposed constellation outperforms both uniform and AWGN-tailored 256-QAM, as it is designed to optimise the trade-off ...
Bayvel, P. +4 more
core +2 more sources
Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system
FEBS Letters, EarlyView.Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley +1 more source
Optimal finite alphabet scheme for NOMA uplink channels
IET Communications, 2023 The design of an optimal non‐orthogonal multiple access (NOMA) transmission scheme with finite alphabet inputs for a typical two‐user uplink wireless communication system is investigated in which each terminal is equipped with a single antenna.
Jina Zhen +4 more
doaj +1 more source
Cost Estimation Model for Mega-Constellation Deployment Missions
IEEE Access, 2021 The economic problem is a primary consideration in mega-constellations design. This work aims to quantify the cost of mega-constellation deployment missions and analyze the contribution of reusable launch vehicles to cost savings. In this paper, the cost
Lu Jia, Yasheng Zhang
doaj +1 more source
DC-Informative Joint Color-Frequency Modulation for Visible Light Communications
, 2015 In this paper, we consider the problem of constellation design for a visible light communication (VLC) system using red/green/blue light-emitting diodes (RGB LED), and propose a method termed DC-informative joint color-frequency modulation (DCI-JCFM ...
Gao, Qian +3 more
core +1 more source
FEBS Letters, EarlyView.This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel +13 more
wiley +1 more source
LEO navigation augmentation constellation design with the multi-objective optimization approaches
, 2020 Low Earth Orbit (LEO) satellite for navigation augmentation applications can significantly reduce the precise positioning convergence time and attract increasing attention recently.
Hang Yi +6 more
semanticscholar +1 more source
ATF4‐mediated stress response as a therapeutic vulnerability in chordoma
Molecular Oncology, EarlyView.We screened 5 chordoma cell lines against 100+ inhibitors of epigenetic and metabolic pathways and kinases and identified halofuginone, a tRNA synthetase inhibitor. Mechanistically halofuginone induces an integrated stress response, with eIF2alpha phosphorylation, activation of ATF4 and its target genes CHOP, ASNS, INHBE leading to cell death ...
Lucia Cottone +11 more
wiley +1 more source
IEEE Photonics JournalAs a wireless communication which combines illumination and communication, visible light communication (VLC) has attracted great attention. In indoor VLC systems, multiple illumination devices are commonly employed, forming a natural multi-input multi ...
Jia-Ning Guo, Jian Zhang
doaj +1 more source