Results 81 to 90 of about 984,557 (317)

Analysis of Millimeter-Wave Polarization Diverse MIMO Capacity

, 2014
Millimeter-waves offer the possibility of wide bandwidth and consequently high data rate for wireless communications. For both uni- and dual-polarized systems, signals sent over a link may suffer severe degradation due to antenna misalignment.
Nicholas P. Lawrence, Ng, B.W.H., Abbott, D., Brian W.-H. Ng, Derek Abbott, Hedley J. Hansen, Lawrence, N.P., Hansen, H.J.   +7 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

Fast millimeter wave beam alignment [PDF]

Proceedings of the 2018 Conference of the ACM Special Interest Group on Data Communication, 2018
There is much interest in integrating millimeter wave radios (mmWave) into wireless LANs and 5G cellular networks to benefit from their multi-GHz of available spectrum. Yet, unlike existing technologies, e.g., WiFi, mmWave radios require highly directional antennas.
Haitham Hassanieh, Omid Abari, Michael Rodriguez, Mohammed A. Abdelghany, Dina Katabi, Piotr Indyk   +5 more
openaire   +2 more sources

Integration of Serum Neurofilament Light Chain and Cortical Dysfunction Improves Diagnostic Accuracy in ALS

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To determine whether integration of serum neurofilament light chain (NfL) and cortical dysfunction improves diagnostic accuracy in amyotrophic lateral sclerosis (ALS) when applied alongside the Gold Coast criteria (GCC). Methods In this prospective study, 148 participants with suspected ALS were recruited (101 ALS and 47 with ALS ...
Aicee Dawn Calma, Nathan Pavey, Yukiko Tsuji, Amirul Ab Ghapar, Mehdi A.J. van den Bos, Bronwen Orden, Grace Lee, Linda Mekhael, Julie Ryder, Cláudia Santos Silva, David McDonald, Fakhria Kakar, Con Yiannikas, Matthew C. Kiernan, David A. Brown, Parvathi Menon, Steve Vucic   +16 more
wiley   +1 more source

A Simple and Accurate Method for Extracting Super Wideband Electrical Properties of the Printed Circuit Board

IEEE Access, 2019
In order to accurately design microwave, millimeter-wave components and circuits, a simple and accurate method for extracting extremely wideband characteristics of the printed circuit board (PCB), including relative dielectric constant, dielectric loss ...
Yi-Wen Wu, Zhang-Cheng Hao, Ming-Cui Tao, Xiang Wang, Jia-Sheng Hong   +4 more
doaj   +1 more source

Millimeter waves: Acoustic and electromagnetic [PDF]

Bioelectromagnetics, 2012
AbstractThis article is the presentation I gave at the D'Arsonval Award Ceremony on June 14, 2011 at the Bioelectromagnetics Society Annual Meeting in Halifax, Nova Scotia. It summarizes my research activities in acoustic and electromagnetic millimeter waves over the past 47 years. My earliest research involved acoustic millimeter waves, with a special
openaire   +2 more sources

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

A 3-D Printed Spherical Antenna With Bandwidth Enhancement Under Operation of Dual Resonance

IEEE Access, 2020
In this paper, a three-dimensional (3-D) printed spherical antenna with bandwidth enhancement under the operation of TM101 and TM211 modes is presented. The antenna is started from a metallized spherical cavity with a rectangular feed waveguide.
Yu-Jian Zhu, Jin Li, Xiao Zhang, Tao Yuan, Zeng-Pei Zhong, Ting-Yan Tan, Xiao-Kun Bi   +6 more
doaj   +1 more source

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur, Faruk Kaya, Bora Derin, Mustafa Lütfi Öveçoğlu, Ju Li, Duygu Ağaoğulları   +5 more
wiley   +1 more source

Axially symmetrical Fabry-Perot oscillator with multiple devices inserted in dielectric substrate

, 1997
We investigate an axially symmetrical Fabry-Perot oscillator with active devices inserted in a dielectric substrate for power combining of many more devices in the microwave and millimeter wave frequency range.
Sanagi, Minoru, S. Nogi, Nogi, Shigeji, M. Sanagi, Itoga, Toshihide, T. Itoga   +5 more
core   +1 more source