Results 21 to 30 of about 108,306 (265)

Crosstalk-Aware Spectrum Defragmentation Based on Spectrum Compactness in Space Division Multiplexing Enabled Elastic Optical Networks With Multicore Fiber

open access: yesIEEE Access, 2018
Achievable capacity of optical fiber is approaching its physical limitation in frequency domain. Space division multiplexing (SDM) technology can scale the network capacity using multi-core fiber and multi-mode fiber.
Yongli Zhao   +5 more
doaj   +1 more source

Spectrum Defragmentation in Elastic Optical Networks: Two Approaches With Metaheuristics

open access: yesIEEE Access, 2019
This work introduces two novel approaches for the selection of active lightpaths that perform a spectrum defragmentation process in elastic optical networks (EONs).
Enrique J. Davalos   +5 more
doaj   +1 more source

The stellar mass spectrum from non-isothermal gravoturbulent fragmentation [PDF]

open access: yesAstronomy & Astrophysics, 2005
13 pages, 7 figures, accepted by A& ...
Jappsen, Anne-Katharina   +4 more
openaire   +4 more sources

Quarkonium TMD fragmentation functions in NRQCD

open access: yesJournal of High Energy Physics, 2020
We study the transverse-momentum spectrum of quarkonium production from single light-parton fragmentation mechanism. In the case of semi-inclusive deep inelastic scattering, we observe that there are two possible initiating processes, namely photon-gluon
Miguel G. Echevarria   +2 more
doaj   +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

Enabling Short Fragments for Uncoordinated Spread Spectrum Communication [PDF]

open access: yes, 2014
Uncoordinated spread spectrum (USS) protocols have been proposed for anti-jamming communication in wireless settings without shared secrets. The existing USS protocols assume that fragments of hundreds of bits can be transmitted on different channels in order to identify fragments that belong to the same message.
Naveed Ahmed   +2 more
openaire   +1 more source

Fragmentation and ISRS-Aware Survivable Routing, Band, Modulation, and Spectrum Allocation Algorithm in Multi-Band Elastic Optical Networks

open access: yesApplied Sciences
The C+L band elastic optical networks (C+L-EONs) increase the network capacity significantly. However, the introduction of an L band enhances the inter-channel stimulated Raman scattering effect (ISRS), consequently deteriorating the quality of ...
Yunxuan Liu   +5 more
doaj   +1 more source

Efficient spectrum sharing with avoiding spatial fragmentation of white space

open access: yesICT Express, 2015
This letter proposes an efficient spectrum sharing by using a smart channel selection with considering the spatial shape of white space (WS) for cognitive radio systems.
Takashi Kosugi, Takeo Fujii
doaj   +1 more source

The newfound relationship between extrachromosomal DNAs and excised signal circles

open access: yesFEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

Improving Peptide-Spectrum Matching by Fragmentation Prediction Using Hidden Markov Models [PDF]

open access: yesJournal of Proteome Research, 2018
AbstractTandem mass-spectrometry has become the method of choice for high-throughput, quantitative analysis in proteomics. However, since the link between the peptides and the proteins they originate from is typically broken, identification of the analyzed peptides relies on matching of the fragmentation spectra (MS2) to theoretical spectra of possible
Ufuk Kirik   +2 more
openaire   +4 more sources

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