Results 81 to 90 of about 555,563 (301)

Comparison between OFDM and STDCC mobile channel sounders at 3.5 GHz

open access: yesJournal of Microwaves, Optoelectronics and Electromagnetic Applications
In this paper, we present a comparison between OFDM and STDCC sounding techniques used to wide band channel characterization in suburban environments at 3.5 GHz band.
Rogério M. L. Silva   +3 more
doaj   +1 more source

Performance Analysis of the Anchor-free Localization Algorithm with Low-Complexity Method for Node Distance Estimation Enhancement Using ToA [PDF]

open access: yesJournal of Electrical and Electronics Engineering, 2013
The Ultra Wide-Band (UWB) communication technology is used in ToA and these systems are capable resolving individual multipath components in the received Channel Impulse Response and determining their time of their arrival very precisely. In this article
CIPOV Vladimír   +2 more
doaj  

A Flexible FPGA-Based Channel Emulator for Non-Stationary MIMO Fading Channels

open access: yesApplied Sciences, 2020
In this paper, a discrete non-stationary multiple-input multiple-output (MIMO) channel model suitable for the fixed-point realization on the field-programmable gate array (FPGA) hardware platform is proposed. On this basis, we develop a flexible hardware
Qiuming Zhu   +6 more
doaj   +1 more source

Radial density profiles of time-delay lensing galaxies

open access: yes, 2007
We present non-parametric radial mass profiles for ten QSO strong lensing galaxies. Five of the galaxies have profiles close to $\rho(r)\propto r^{-2}$, while the rest are closer to r^{-1}, consistent with an NFW profile.
A. V. Maccio   +8 more
core   +1 more source

Preferences for post‐traumatic osteoarthritis prevention strategies in individuals with anterior cruciate ligament injury

open access: yesArthritis Care &Research, Accepted Article.
Objectives There is growing interest in evaluating new strategies to delay or prevent post‐traumatic osteoarthritis (PTOA) in individuals who have sustained anterior cruciate ligament (ACL) injury. This study sought to determine characteristics of potential treatments that are acceptable to patients with ACL injury.
Kevin Kennedy   +9 more
wiley   +1 more source

Machine Learning-Based PRACH Preamble Detection: Efficient Structured Design Perspective

open access: yesIEEE Access
In this paper, we propose a structured design for efficient detection of the Physical Random Access CHannel (PRACH) preamble, integrating a novel Machine Learning (ML) methodology.
Duhui Yang, Sang Won Choi
doaj   +1 more source

2.6 GHz Intra-Consist Channel Model for Train Control and Management Systems

open access: yesIEEE Access, 2017
This paper presents a full characterization of the communications channel inside a train vehicle, in both narrow and wideband configurations. The purpose of this characterization is to be one of the first steps to check the feasibility of a wireless ...
Juan Moreno Garcia-Loygorri   +3 more
doaj   +1 more source

Pharmacokinetics, Pharmacodynamics, and Safety of Subcutaneous Belimumab in Pediatric Patients With Systemic Lupus Erythematosus: A Multicenter, Open‐Label Trial

open access: yesArthritis Care &Research, EarlyView.
Objective This study aimed to characterize the pharmacokinetics, pharmacodynamics, safety, and exploratory efficacy of subcutaneous belimumab in pediatric patients with active systemic lupus erythematosus (SLE) receiving standard therapy. Methods This single‐arm, multicenter, open‐label trial (GSK study 200908; ClinicalTrials.gov identifier ...
Hermine I. Brunner   +14 more
wiley   +1 more source

Unlocking the Power of Quercetin‐Encapsulated Mesoporous Bioactive Glass Nanoparticles: A Multifunctional Approach to Bone Regeneration

open access: yesAdvanced Engineering Materials, EarlyView.
Mesoporous bioactive glass nanoparticles (MBGNs) are investigated for bone regeneration given their remarkable structural and functional properties. MBGNs are functionalized with Mn and Cu and incorporated with quercetin, a natural flavonoid exhibiting antioxidant, anti‐inflammatory, and antimicrobial properties.
Giovanni Lo Bello   +5 more
wiley   +1 more source

Revisión del estado del arte deIR-Ultra-Wideband y simulación de la respuesta impulsiva del canal IEEE802.15.4a

open access: yesIngeniería y Ciencia, 2010
Este artículo realiza una revisión del estado del arte de la tecnología basada en canales de Banda Ultra Ancha (UWB, Ultra–Wideband) enfocándose en su regulación, estandarización, aplicaciones básicas, modelo de canal IEEE 802.15.4a y simulación de la ...
Julio Suárez Páez   +1 more
doaj  

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