Results 81 to 90 of about 726,451 (313)

Terahertz spoof plasmonic neural network for diffractive information recognition and processing

Nature Communications
All-optical diffractive neural networks, as analog artificial intelligence accelerators, leverage parallelism and analog computation for complex data processing.
Xinxin Gao, Ze Gu, Qian Ma, Bao Jie Chen, Kam-Man Shum, Wen Yi Cui, Jian Wei You, Tie Jun Cui, Chi Hou Chan   +8 more
doaj   +1 more source

Recent advances and perspectives on space-time coding digital metasurfaces

EPJ Applied Metamaterials, 2020
Within the overarching framework of space-time metastructures, digital metasurfaces based on spatio-temporal coding are emerging as powerful and versatile architectures for complex field manipulations, also in view of their inherently programmable nature.
Zhang Lei, Dai Jun Yan, Moccia Massimo, Castaldi Giuseppe, Cui Tie Jun, Galdi Vincenzo   +5 more
doaj   +1 more source

Rheumatoid Arthritis and Coronary Artery Calcium Progression: A Case Cohort Analysis From ELSA‐Brasil

Arthritis Care &Research, EarlyView.
Objective To investigate the association between rheumatoid arthritis (RA) and coronary artery calcium (CAC) prevalence, incidence, and progression over four years in adults without prior cardiovascular disease. Methods A case‐cohort study within the Brazilian Longitudinal Study of Adult Health (ELSA‐Brasil) included 585 participants (86 patients with ...
Patrícia Fonseca Estrada, Marcos Rafael N. Cavalcante, Itamar de Souza Santos, Márcio S. Bittencourt, Vandrize Meneghini, Paulo A. Lotufo, Alessandra C. Goulart, Isabela M. Bensenor   +7 more
wiley   +1 more source

Millimeter waves for NMR enhancement

By shining millimeter waves upon a sample, Dynamic Nuclear Polarization (DNP) provides a way to enhance Nuclear Magnetic Resonance (NMR) signals. Here we report on our efforts to realize a tunable gyrotron at 263.5 GHz and design consideration for ...
de Rijk, E., Boero, Giovanni, Macor, Alessandro, Alberti, Stefano, Ansermet, Jean-Philippe   +4 more
core   +1 more source

Millimeter Waves, Millisecond Delays [PDF]

Proceedings of the 2nd ACM Workshop on Millimeter Wave Networks and Sensing Systems, 2018
Two simultaneous revolutionary changes are occurring in networking: the advent of mmWave networks and the advent of applications that require end-to-end delays of the order of a few milliseconds. mmWave is the first physical layer technology that promises huge wireless bandwidth, but with very poor reliability as a result of its vulnerability to ...
openaire   +1 more source

Anorectal Dysfunction in Systemic Sclerosis: Clinical Phenotypes and Functional Patterns

Arthritis Care &Research, EarlyView.
Objective The aim of this study was to characterize specific physiologic defects in anorectal dysfunction in systemic sclerosis (SSc) using anorectal manometry (ARM), evaluate associations with gastrointestinal (GI) and extraintestinal clinical phenotypes, and explore potential serologic markers for risk stratification.
Timothy Kaniecki, Alireza Amindarolzarbi, Tsion Abdi, John Clarke, Michael Hughes, Ami A. Shah, Zsuzsanna H. McMahan   +6 more
wiley   +1 more source

Terahertz magnetic plasmon waveguides

, 2012
Extent: 2p.A design of subwavelength terahertz waveguides is presented in this manuscript. The structure is composed of a linear chain of split-ring resonators (SRRs), i.e., artificial magnetic atoms. The energy transport along the chain can be described
Markus Walther, Abbott, D., Derek Abbott, Christophe Fumeaux, Walther, M., Kaltenecker, K., Liu, H., Fumeaux, C., Korbinian Kaltenecker, Hui Liu, Withawat Withayachumnankul, Withayachumnankul, W.   +11 more
core   +1 more source

Beyond Visual Scoring: Computational Computed Tomography Analysis for High‐Resolution Computed Tomography–Based Quantification of Interstitial Lung Disease in Inflammatory Rheumatic Disease

Arthritis Care &Research, EarlyView.
Interstitial lung disease (ILD) is a significant cause of morbidity and mortality in patients with inflammatory rheumatic disorders (IRDs). High‐resolution computed tomography (HRCT) is widely considered the gold standard for the noninvasive assessment of ILD; however, its interpretation is constrained by substantial interobserver variability and the ...
Alexander Pfeil, Tobias Hoffmann, Ulf Teichgräber, Diane Renz, Denise Beckmann, Gunter Wolf, Nicole Schadewaldt, Bianca Lassen‐Schmidt   +7 more
wiley   +1 more source

Microvascular Damage Is Associated With Carotid Wall Structural Changes in Systemic Sclerosis: A Capillaroscopy and Ultrasound‐Based Observational Study

Arthritis Care &Research, EarlyView.
Objective Systemic sclerosis (SSc) is characterized by cardiovascular risk excess not fully explained by traditional factors. Whether the severity of microvascular damage correlates with structural subclinical atherosclerosis remains unclear. We investigated the relationship between nailfold videocapillaroscopy (NVC) abnormalities and carotid ...
Eugenio Capparelli, Luca Clerici, Francesco Lapia, Giusy C. Moltisanti, Eleonora Zaccara, Greta Pellegrino, Daniela Bompane, Francesca Capelli, Letizia Ferrami, Laura Castelnovo, Antonio Tamburello, Maria Sole Chimenti, Paola Faggioli, Antonino Mazzone   +13 more
wiley   +1 more source

Terahertz Slot Waveguide for Taperless Interfacing

We propose a slot waveguide with taperless interfaces that can couple terahertz waves directly from metallic hollow waveguides, leading to an entirely new coupling mechanism for interconnection between planar and non-planar waveguides.
Gao, W., Ngo, N.H., Fujita, M., Li, M., Withayachumnankul, W.   +4 more
core   +1 more source