Results 91 to 100 of about 1,759 (291)

A Compact Multiple Notched Ultra-Wide Band Antenna with an Analysis of the CSRR-TO-CSRR Coupling for Portable UWB Applications

Sensors, 2017
We present a compact ultra-wideband (UWB) antenna integrated with sharp notches with a detailed analysis of the mutual coupling of the multiple notch resonators. By utilizing complementary split ring resonators (CSRR) on the radiating semi-circular patch,
MuhibUr Rahman, Dong-Sik Ko, Jung-Dong Park   +2 more
doaj   +1 more source

T1 Over Squared Proton Density Ratio to Characterize Multiple Sclerosis Lesions

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Differentiating remyelinated from demyelinated lesions in MS remains challenging without histological confirmation. This study introduces the T1‐to‐PD2 ratio (TPR) imaging approach and evaluates its ability to characterize MS lesions alongside other quantitative MRI (qMRI) metrics. Methods Thirty individuals with MS (mean age: 47.5 ± 
Sarah J. Wright, Scotty G. McKay, Jean Ramos Bou, Fen Bao, Vivian B. Truong, Chenyang Li, Li Jiang, Anza B. Memon, E. Mark Haacke, Yulin Ge, Yongsheng Chen   +10 more
wiley   +1 more source

Novel Broadband Bow-Tie Antenna Based on Complementary Split-Ring Resonators Enhanced Substrate-Integrated Waveguide

IEEE Access, 2019
This paper presents a broadband bow-tie antenna based on the metamaterial-inspired periodic structure of coupled complementary split-ring resonators substrate-integrated waveguide for the first time.
Caixia Feng, Taixia Shi, Lihong Wang
doaj   +1 more source

Strong beaming of microwave surface waves with complementary split-ring-resonator arrays (article)

, 2018
A thin copper sheet, populated by an array of complementary split ring resonators, presents strong surface wave beaming in orthogonal directions at two distinct frequencies.
E Young (16330161), A Hibbins (21872399), JR Sambles (16155347), J Dockrey (21872396), C Lawrence (13637932)   +4 more
core  

Strong beaming of microwave surface waves with complementary split-ring-resonator arrays (dataset)

, 2018
Raw data from the vector network analyser in the form of amplitude and phase for all frequencies for the whole 2D scan. For each frequency data may be reduced to the form of a 2D plot and this may then be Fourier transformed to give the final figures ...
Sambles, JR, E Young (16330161), A Hibbins (21872399), JR Sambles (16155347), J Dockrey (21872396), Young, E, Lawrence, C, C Lawrence (13637932), Dockrey, J, Hibbins, A   +9 more
core   +1 more source

Response of complementary split ring resonators in composite stratified substrate integrated waveguide [PDF]

, 2017
The following article appeared in Pérez-Escudero, J. M., Jarauta, E., Falcone, F., & Beruete, M. (2017). Response of complementary split ring resonators in composite stratified substrate integrated waveguide. Journal of Applied Physics, 121(19), 1.
Beruete Díaz, Miguel, Miguel Beruete, Jarauta Ayensa, Eduardo, Pérez Escudero, José Manuel, J. M. Pérez-Escudero, Eduardo Jarauta, Falcone Lanas, Francisco, Francisco Falcone   +7 more
core   +1 more source

Long‐Term Neurologic Exam Findings in People Diagnosed and Treated During Acute HIV Infection

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Evaluate clinical and laboratory correlates of abnormal neurologic exam findings after acute HIV infection (AHI). Methods Participants from the RV254/SEARCH 010 cohort in Bangkok underwent standardized neurologic examinations at Weeks 0 (AHI), 12, 96, and 288 following antiretroviral therapy (ART).
Kathryn B. Holroyd, Tyler Hamby, Carlo Sacdalan, Somchai Sriplienchan, Pathariya Promensa, Luxenaree Poonpitak, Netsiri Dumrongpisutikul, Eugène Kroon, Sandhya Vasan, Robert Paul, Ferron O'Campo, Lydie Trautmann, Phillip Chan, Serena Spudich, on behalf of the RV254/SEARCH 010 Study Team, Julie Ake, Sandhya Vasan, Lydie Trautmann, Merlin Robb, Trevor Crowell, Donn Colby, Diane Bolton, Shelly Krebs, Leigh Ann Eller, Morgane Rolland, Rasmi Thomas, Dominic Paquin Proulx, Suteeraporn Pinyakorn, Tyler Hamby, Mark de Souza, Ellen Turk, Amber Moodley, Gerald Quarles, Jintanat Ananworanich, Denise Hsu, Victoria Polonis, Nelson Michael, Sheila Peel, COL Eric Garges, Alexandra Schuetz, Siriwat Akapirat, Bessara Nantapinit, Pornsuk Visudhiphan, Saowanit Getchalarat, Nampueng Churikanont, Sangsulee Thamakaison, Somchai Sriplienchan, Carlo Sacdalan, Pathariya Promsena, Luxe‐naree Poonpitak, Eugene Kroon, Nitiya Chomchey, Jintana Intasan, Varaporn Pothipala, Ferron Ocampo, Nittaya Phanuphak, Nipat Teeratakulpisan, Yuwaree Pichitchok, Anchalee Avihingsanon, Opass Putcharoen, Kiat Ruxrungtham, Thanyawee Puthanakit, Sopark Manasnayakorn, Phandee Watanaboonyongcharoen, Rungsun Rerknimitr, Irini Sereti, Daniel Douek, Eli Bortiz, Frank Maldarelli, Mary Kearney, Serena Spudich, Phillip Chan, Lishomwa Ndhlovu, Guinevere Li, Michael Corley, Victor Valcour, Peter Hunt, Jacob Estes, Afam Okoye, Jeff Lifson, Claire Deleage, Nicolas Chomont, Andres Finzi, Lyle McKinnon, Henrik Zetterberg, Robert Siliciano, Robert Paul, Julie Mannarino, Jonathan Li, John Mellors, Josh Cytkor, Dan Barouch, Michael Seaman, Boris Juelg, Alex Shalek, Timothy Schacker, Ashley Haase, Mario Stevenson, Wenjun Li, Arthur Kim, Sharon Lewin, Adam Carrico, Susana Valente, Fred Hutchinson, Josh Schiffer, Guido Ferrari, Beau Ances, Alberto Bosque, Katharine Bar, Killian Pohl, David Ho, Yaoxing Huang, Michael Busch, Mohamed Abdel‐Mohsen, Johanna Gostner, Brian Agan, Fatah Kashanchi, Greg Laird, Kathryn Holroyd   +118 more
wiley   +1 more source

Balanced Dual Composite Right/Left-Handed Microstrip Line With Modified Complementary Split-Ring Resonators

, 2013
This letter presents a dual composite right/left-handed microstrip line loaded with modified complementary split-ring resonators. In this particular case, the well-known resonant particle employed has been capacitively loaded in order to obtain a ...
Belenguer Martínez, Ángel, Boria Esbert, Vicente Enrique, Lucas Borja, Alejandro   +2 more
core   +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

Dual-Band High Q-Factor Complementary Split-Ring Resonators Using Substrate Integrated Waveguide Method and Their Applications

Journal of Electrical and Computer Engineering, 2019
In modern microwave telecommunication systems, especially in low phase noise oscillators, there is a need for resonators with low insertion losses and high Q-factor. More specifically, it is of high interest to design resonators with high group delay. In
Mehdi Hamidkhani, Rasool Sadeghi, Mohamadreza Karimi   +2 more
doaj   +1 more source