Results 1 to 10 of about 683,462 (316)
Science Advances, 2021 Ultrasound Doppler–guided formation and navigation of nanoparticle microswarm enable real-time active endovascular delivery. Swarming micro/nanorobots offer great promise in performing targeted delivery inside diverse hard-to-reach environments. However,
Qianqian Wang +2 more
exaly +2 more sources
Uterine Artery Doppler in Screening for Preeclampsia and Fetal Growth Restriction [PDF]
Revista Brasileira de Ginecologia e Obstetrícia, 2018 Objective To perform a comprehensive review of the current evidence on the role of uterine artery Doppler, isolated or in combination with other markers, in screening for preeclampsia (PE) and fetal growth restriction (FGR) in the general population ...
Marianna Amaral Pedroso +4 more
doaj +2 more sources
Embedded Pilot-Aided Channel Estimation for OTFS in Delay–Doppler Channels [PDF]
IEEE Transactions on Vehicular Technology, 2018 Orthogonal time frequency space (OTFS) modulation was shown to provide significant error performance advantages over orthogonal frequency division multiplexing (OFDM) in delay–Doppler channels.
P. Raviteja, K. Phan, Yi Hong
semanticscholar +1 more source
Ambiguity in the m-bonacci numeration system [PDF]
Discrete Mathematics & Theoretical Computer Science, 2007 Résumé comportant des formules mathématiques, disponible sur le ficher pdf / Abstract with mathematical formulas, available on pdf file.
Petra Kocábová +2 more
doaj +1 more source
Addition and multiplication of beta-expansions in generalized Tribonacci base [PDF]
Discrete Mathematics & Theoretical Computer Science, 2007 We study properties of β-numeration systems, where β > 1 is the real root of the polynomial x3 - mx2 - x - 1, m ∈ ℕ, m ≥ 1. We consider arithmetic operations on the set of β-integers, i.e., on the set of numbers whose greedy expansion in base β has no ...
Petr Ambrož +2 more
doaj +1 more source
Micro-Doppler Based Target Recognition With Radars: A Review
IEEE Sensors Journal, 2021 With the deployment of radar in versatile scenarios and a wide variety of potential targets, demand for automatic classification of various targets is increasing. The wide variety of radar signatures from physically smaller targets due to lower velocity /
Ali Hanif +3 more
semanticscholar +1 more source
On the number of factors in codings of three interval exchange [PDF]
Discrete Mathematics & Theoretical Computer Science, 2011 Graph ...
Petr Ambrož +3 more
doaj +1 more source
Fluids and Barriers of the CNS, 2021 Background C-X-C chemokine ligand 13 (CXCL13) is frequently elevated in cerebrospinal fluid (CSF) in a variety of inflammatory central nervous system (CNS) diseases, has been detected in meningeal B cell aggregates in brain tissues of multiple sclerosis ...
Christine Harrer +7 more
doaj +1 more source
Scientific Reports, 2021 Quantitative Doppler ultrasound of the carotid artery has been proposed as an instantaneous surrogate for monitoring rapid changes in left ventricular output. Tracking immediate changes in the arterial Doppler spectrogram has value in acute care settings
Jon-Émile S. Kenny +13 more
semanticscholar +1 more source
Message Passing-Based Structured Sparse Signal Recovery for Estimation of OTFS Channels With Fractional Doppler Shifts [PDF]
IEEE Transactions on Wireless Communications, 2020 The orthogonal time frequency space (OTFS) modulation has emerged as a promising modulation scheme for high mobility wireless communications. To enable efficient OTFS detection in the delay-Doppler (DD) domain, the DD domain channels need to be acquired ...
Fei Liu +4 more
semanticscholar +1 more source