Results 11 to 20 of about 3,201 (178)

Hybrid Precoding for Millimeter Wave RoF Systems [PDF]

2020 IEEE 31st Annual International Symposium on Personal, Indoor and Mobile Radio Communications, 2020
<div>Large propagation path loss and limited scattering</div><div>of millimeter wave (mm-wave) channels create new challenges for physical layer signal processing. Hence, in this paper, we propose a photonic hybrid precoding model for mm-wave radio-over-fiber systems that overcomes hardware constraints on radio frequency precoding ...
Yahia Alghorani, Salama Ikki
openaire   +2 more sources

Total Cost of Ownership of Digital vs. Analog Radio-Over-Fiber Architectures for 5G Fronthauling

IEEE Access, 2020
The article analyzes the total cost of ownership (TCO) of 5G fronthauling solutions based on analog and digital radio-over-fiber (RoF) architectures in cloud radio access networks (C-RANs).
Aleksejs Udalcovs, Marco Levantesi, Patryk Urban, Darli A. A. Mello, Roberto Gaudino, Oskars Ozolins, Paolo Monti   +6 more
doaj   +1 more source

THE PERFORMANCE COMPARISON OF RF LEVEL MULTIPLEXING AND OPTICAL LEVEL MULTIPLEXING IN RADIO OVER FIBER SYSTEMS WITH DIRECT OPTICAL MODULATION TECHNIQUES

Journal Sampurasun, 2023
Communication in the world is developing very rapidly, not only limited to voice but data communication. Many techniques have been used to support multimedia services. Radio over Fiber is expected to support communication for long distances. Therefore, a
Febrizal Ujang, Adillah Putri, Esra Erianti, Hotnida Hannum, Putri Anisa   +4 more
doaj   +1 more source

Parry–Romberg syndrome associated with en coup de sabre in a patient from South Sudan – a rare entity from East Africa: a case report

Journal of Medical Case Reports, 2019
Background Parry–Romberg syndrome, also known as progressive hemifacial atrophy, is a rare degenerative disorder with numerous distinctive clinical presentations. It is usually slowly progressive, occurring more in females, and affects primarily one side
Jimmy Girgis William Abdelnour, Youeil Girgis William Abdelnour, Rose-Mery Amin Boushra Kerollos, Ziryab Imad Taha Mahmoud   +3 more
doaj   +1 more source

Roflumilast as a Potential Therapeutic Agent for Cecal Ligation and Puncture-Induced Septic Lung Injury

Journal of Investigative Surgery, 2022
Purpose/Aims This study focused on delineating the possible effects of roflumilast (ROF), a selective phosphodiesterase 4 (PDE4) inhibitor, in rats with cecal ligation and puncture (CLP)-induced polymicrobial sepsis, and investigated whether ROF can act ...
Zafer Bayraktutan, Busra Dincer, Halil Keskin, Duygu Kose, Arzu Bilen, Erdem Toktay, Busra Sirin, Zekai Halici   +7 more
doaj   +1 more source

A mesh-free algorithm for ROF model [PDF]

EURASIP Journal on Advances in Signal Processing, 2017
Abstract The total variation (TV) denoising method is a PDE-based technique that preserves the edges well but has undesirable staircase effect in some cases, namely, the translation of smooth regions (ramps) into piecewise constant regions (stairs). This paper introduces a novel mesh-free approach using TV (ROF model) regularization and radial basis ...
Mushtaq Ahmad Khan, Wen Chen 0003, Asmat Ullah, Zhuo-Jia Fu   +3 more
openaire   +2 more sources

A ketogenic diet normalizes interictal cortical but not subcortical responsivity in migraineurs

BMC Neurology, 2019
Background A short ketogenic diet (KD) treatment can prevent migraine attacks and correct excessive cortical response. Here, we aim to prove if the KD-related changes of cortical excitability are primarily due to cerebral cortex activity or are modulated
Cherubino Di Lorenzo, Gianluca Coppola, Martina Bracaglia, Davide Di Lenola, Giulio Sirianni, Paolo Rossi, Giorgio Di Lorenzo, Vincenzo Parisi, Mariano Serrao, Mackenzie C. Cervenka, Francesco Pierelli   +10 more
doaj   +1 more source

Some Geometric Aggregation Operators Under q-Rung Orthopair Fuzzy Soft Information With Their Applications in Multi-Criteria Decision Making

IEEE Access, 2021
The pioneer paradigm of soft set ( $S_{ft}\text{S}$ ) was investigated by Molodtsov in 1999 by affixing parameterization tools in ordinary sets.
Ronnason Chinram, Azmat Hussain, Muhammad Irfan Ali, Tahir Mahmood   +3 more
doaj   +1 more source

Finger-Floor Distance Is Not a Valid Parameter for the Assessment of Lumbar Mobility

Diagnostics, 2023
Low back pain (LBP) could be associated with a reduced lumbar mobility. For the evaluation of lumbar flexibility, parameters such as finger-floor distance (FFD) are historically established.
Luis Becker, Friederike Schömig, Lea Marie-Sophie Cordes, Georg N. Duda, Matthias Pumberger, Hendrik Schmidt   +5 more
doaj   +1 more source

Power aggregation operators based on Yager t-norm and t-conorm for complex q-rung orthopair fuzzy information and their application in decision-making problems

Complex & Intelligent Systems, 2023
The complex q-rung orthopair fuzzy (CQ-ROF) set can describe the complex uncertain information. In this manuscript, we develop the Yager operational laws based on the CQ-ROF information and Yager t-norm and t-conorm.
Xiaoming Wu, Zeeshan Ali, Tahir Mahmood, Peide Liu   +3 more
doaj   +1 more source