Results 31 to 40 of about 4,242 (161)

Mutual Coupling Suppression in Antenna Arrays Using Meandered Open Stub Filtering Technique

IEEE Open Journal of Antennas and Propagation, 2020
Multiple-input and multiple-output (MIMO) systems utilize multiple antenna elements to improve channel capacity and achieve higher data rates. The successful implementation of MIMO systems requires low mutual coupling between antenna elements to reduce ...
Sandhiya Reddy Govindarajulu, Alexander Jenkel, Rimon Hokayem, Elias A. Alwan   +3 more
doaj   +1 more source

Dual-Band MIMO Antenna with Four CPW Elements using Polarization Diversity for 5G Mobile Communication Networks and Satellite

Advanced Electromagnetics, 2023
In this paper, a novel design of compact quad-element MIMO (Multiple Input Multiple Output) antenna for 5G communication networks and satellites is proposed.
D. El Hadri, A. Zugari, A. Zakriti, M. El Ouahabi   +3 more
doaj   +1 more source

MTN-001: Randomized Pharmacokinetic Cross-Over Study Comparing Tenofovir Vaginal Gel and Oral Tablets in Vaginal Tissue and Other Compartments [PDF]

, 2013
Background: Oral and vaginal preparations of tenofovir as pre-exposure prophylaxis (PrEP) for human immunodeficiency virus (HIV) infection have demonstrated variable efficacy in men and women prompting assessment of variation in drug concentration as an ...
A Pruvost, Alexandra M. Minnis, AS Mohamed, Barbra A. Richardson, Beatrice A. Chen, BL Robbins, BL Robbins, BP Kearney, C Mitchell, CD Blaskewicz, Clemensia Nakabiito, Craig Hoesley, Craig W. Hendrix, Gilda Tachedjian, J Balzarini, J Nuttall, JB Dumond, Jessica Justman, JL Schwartz, JW Reagan, JW Reagan, Kailazarid Gomez, Karen Patterson, KB Patterson, L Belec, Lydia Soto-Torres, M Simiele, MJ Keller, Namandje N. Bumpus, P Barditch-Crovo, PL Anderson, Q Abdool Karim, RM Grant, Robert Salata, Sharavi Gandham, SS Karim, T King, V Naranbhai, Vijayanand Guddera, WY Gao   +39 more
core   +5 more sources

Compact MIMO Slots Antenna Design with Different Bands and High Isolation for 5G Smartphone Applications

مجلة بغداد للعلوم, 2020
In this paper, two elements of the multi-input multi-output (MIMO) antenna had been used to study the five (3.1-3.55GHz and 3.7-4.2GHz), (3.4-4.7 GHz), (3.4-3.8GHz) and (3.6-4.2GHz) 5G bands of smartphone applications that is to be introduced to the ...
ayman mohammed ibrahim
doaj   +1 more source

Polarimetry of Li-rich giants

, 2005
Protoplanetary nebulae typically present non-spherical envelopes. The origin of such geometry is still controversial. There are indications that it may be carried over from an earlier phase of stellar evolution, such as the AGB phase.
A. M. Magalhães, A. Pereyra, B. V. Castilho, Balick, Bessell, Bond, Brown, Carciofi, Castilho, Castilho, Castilho, Castilho, Chapman, Cohen, Collison, Coyne, Coyne, de la Reza, de la Reza, Diamond, Fekel, Greenhill, Gregorio-Hetem, Gregorio-Hetem, Heiles, Ivezic, Johnson, Koornneef, Magalhães, Magalhães, Magalhães, Magalhães, Mermilliod, Parthasaraty, Pereyra, Pereyra, Perryman, Plez, Reddy, Rieke, Serkowski, Trammell, Witt   +42 more
core   +2 more sources

Adaptive Subcarrier PSK Intensity Modulation in Free Space Optical Systems [PDF]

, 2010
We propose an adaptive transmission technique for free space optical (FSO) systems, operating in atmospheric turbulence and employing subcarrier phase shift keying (S-PSK) intensity modulation.
Athanasios S. Lioumpas, George K. Karagiannidis, Nestor D. Chatzidiamantis, Senior Member, Senior Member, Shlomi Arnon, Student Member   +6 more
core   +1 more source

Compact Reconfigurable MIMO Antenna for 5G and Wi-Fi Applications

IEEE Access
Four miniaturized four-element multiple-input multiple-output (MIMO) antenna designs are proposed, designed, and fabricated with dimensions of 26 mm x 26 mm x 0.8 mm each.
Widad Faraj A. Mshwat, Jamal Sulieman Kosha, Abubakar Salisu, Atta Ullah, Nazar T. Ali, Issa Elfergani, Chan Hwang See, Chemseddine Zebiri, Jonathan Rodriguez, Raed Abd-Alhameed   +9 more
doaj   +1 more source

Isolation improvement using CMRC for MIMO antennas [PDF]

, 2015
In this paper, a compact microstrip resonant cell (CMRC) is proposed to improve isolation of antenna elements in the design of multiple-input multiple-output (MIMO) antennas.
Cheung, SW, Liu, L, Wu, D, Yuk, TI
core  

A Quantum Framework for Protein Binding‐Site Structure Prediction on Utility‐Level Quantum Processors

Advanced Science, EarlyView.
This study presents a hybrid quantum‐classical framework for accurate prediction of protein structures on utility‐level quantum processors. We evaluate the practical application of the Variational Quantum Eigen‐solver (VQE) in protein structure prediction and demonstrate its superiority over state‐of‐the‐art deep learning methods in molecular docking ...
Yuqi Zhang, Yuxin Yang, William Martin, Kingsten Lin, Zixu Wang, Cheng‐Chang Lu, Weiwen Jiang, Ruth Nussinov, Joseph Loscalzo, Qiang Guan, Feixiong Cheng   +10 more
wiley   +1 more source

Isolation and Gain Enhancement Using Metamaterial Based Superstrate for MIMO Applications [PDF]

Radioengineering, 2019
In this paper, a metamaterial superstrate in¬spired multiple-input-multiple-output (MIMO) for gain and isolation enhanced antenna system is investigated for WLAN applications. The superstrate layer generates a resonant cavity effect which results in gain
R. Mark, N. Rajak, K. Mandal, S. Das
doaj