Results 201 to 210 of about 64,360 (256)

Emergence of a high-risk multidrug-resistant <i>Acinetobacter baumannii</i> clone ST697 in nosocomial settings. [PDF]

Microbiol Spectr
Guan J, Qu H, Yu L, Li W, Eister G, Hakonarson H, Li S.   +6 more
europepmc   +1 more source

Small RNAs as systemic signals in plant defense: mechanisms, challenges, and future directions. [PDF]

Mol Biol Rep
Wekesa C, Kiprotich K, Muoma J, Mithöfer A.   +3 more
europepmc   +1 more source

A more complete picture: Capturing single nucleotide variant diversity in extended-spectrum beta-lactamase producing Escherichia coli using post-enrichment metagenomics

Gallichan S, Mäklin T, Picton-Barlow E, McKeown C, Forrest S, Corander J, Moore M, Feasey NA, Heinz E, Graf FE, Lewis JM.   +10 more
europepmc   +1 more source

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Detectability of Chaotic Direct-Sequence Spread-Spectrum Signals

IEEE Wireless Communications Letters, 2015
Chaotic spreading sequences were previously proposed for use in direct-sequence spread-spectrum (DSSS) communications systems, and it was suggested that the nonbinary nature of these sequences would result in an improvement in the low probability of intercept (LPI) performance of the signal.
Mahmoud Farhang
exaly   +2 more sources

Markov oscillators and direct sequence spread spectrum

Proceedings of ICC'97 - International Conference on Communications, 2002
This paper presents a concept under development, that of dynamically coloring the spectrum of a pseudorandom spreading code in order to aid slow rate data communication in a very poor channel. The method seems to hold promise for some difficult industrial communications problems, especially for wireless random access communications in time varying ...
John E. Hershey, Amer A. Hassan
openaire   +1 more source

Direct-Sequence Spread Spectrum with Variable Spreading Sequence for Jamming Immunity

2019 16th International Bhurban Conference on Applied Sciences and Technology (IBCAST), 2019
Jamming attacks can limit the availability of wireless networks and can lead to significant re-transmissions and increased power consumption. Over the past decades DSSS has been utilized to consolidate jamming-resistant communication. Such a system is relatively immune to jamming interference when the spreading sequence is unknown to the jammer ...
Muhammad Ahsan Munir, Abdur Rahman M. Maud   +1 more
openaire   +1 more source

A chaotic direct-sequence spread-spectrum communication system

IEEE Transactions on Communications, 1994
The use of chaotic sequences as spectral spreading sequences in direct-sequence spread-spectrum (DS/SS) communication systems is proposed. The error probabilities of such systems are investigated and shown to be, for all practical purposes, identical to the conventional DS/SS systems which use binary signature sequences. Among the advantages of the use
Ghobad Heidari-Bateni, Clare D. McGillem
openaire   +1 more source