Results 11 to 20 of about 1,606 (154)

Airborne-Platform-Assisted Transmission and Control Separation for Multiple Access in Integrated Satellite–Terrestrial Networks [PDF]

open access: yesSensors
Currently, the primary random access protocol for satellite communications is Irregular Repetition Slotted ALOHA (IRSA). This protocol leverages interference cancellation and burst repetition based on probabilistic distributions, achieving up to 80 ...
Chaoran Huang   +4 more
doaj   +2 more sources

Atomically dispersed Iridium on Mo2C as an efficient and stable alkaline hydrogen oxidation reaction catalyst [PDF]

open access: yesNature Communications
Hydroxide exchange membrane fuel cells (HEMFCs) have the advantages of using cost-effective materials, but hindered by the sluggish anodic hydrogen oxidation reaction (HOR) kinetics.
Jinjie Fang   +11 more
doaj   +2 more sources

CRDSA, CRDSA++ and IRSA: Stability and performance evaluation

open access: yes2012 6th Advanced Satellite Multimedia Systems Conference (ASMS) and 12th Signal Processing for Space Communications Workshop (SPSC), 2012
6th Advanced Satellite Multimedia Systems Conference (ASMS) and 12th Signal Processing for Space Communications Workshop (SPSC ...
Alessio Meloni, Maurizio Murroni
exaly   +3 more sources

Balloon-Expandable Versus Self-Expanding Valves in Low-Flow, Low-Gradient Aortic Stenosis: Does Valve Type Matter? [PDF]

open access: yesCatheter Cardiovasc Interv
ABSTRACT Background The optimal choice between balloon‐expandable (BE) and self‐expanding (SE) transcatheter heart valves (THVs) in patients with low‐flow low‐gradient aortic stenosis (LFLG AS) undergoing transcatheter aortic valve replacement (TAVR) remains unclear.
Warraich N   +10 more
europepmc   +2 more sources

Interplay of physical and recognition performance using hierarchical continuous‐time dynamic modeling and a dual‐task training regime in Alzheimer's patients [PDF]

open access: yesAlzheimer’s & Dementia: Diagnosis, Assessment & Disease Monitoring
Training studies typically investigate the cumulative rather than the analytically challenging immediate effect of exercise on cognitive outcomes. We investigated the dynamic interplay between single‐session exercise intensity and time‐locked recognition
Svenja Schwarck   +6 more
doaj   +2 more sources

Adaptive Transmission Control Considering Available Channels Difference Among Terminals in Satellite IoT Systems Using CRDSA/IRSA

open access: yesIEEE Access
The use of Low Power Wide Area (LPWA) networks in the 920-MHz band, which are compatible with terrestrial network devices, is being explored for a satellite Internet-of-Things (IoT) system.
Daisuke Gotō   +2 more
exaly   +3 more sources

Differential affinity chromatography reveals a link between Porphyromonas gingivalis–induced changes in vascular smooth muscle cell differentiation and the type 9 secretion system

open access: yesFrontiers in Cellular and Infection Microbiology, 2022
Porphyromonas gingivalis is implicated in adverse pregnancy outcome. We previously demonstrated that intrauterine infection with various strains of P. gingivalis impairs the physiologic remodeling of the uterine spiral arteries (IRSA) during pregnancy ...
Priscilla L. Phillips   +2 more
doaj   +1 more source

DS-IRSA: A Deep Reinforcement Learning and Sensing Based IRSA

open access: yesGLOBECOM 2023 - 2023 IEEE Global Communications Conference, 2023
One of the main difficulties to enable the future scaling of IoT networks is the issue of massive connectivity. Recently, Modern Random Access protocols have emerged as a promising solution to provide massive connections for IoT. One main protocol of this family is Irregular Repetition Slotted Aloha (IRSA), which can asymptotically reach the optimal ...
Hmedoush, Iman   +4 more
openaire   +2 more sources

A Game Theoretic Approach to Irregular Repetition Slotted Aloha

open access: yesIEEE Access, 2022
Many technological enhancements are being developed worldwide to enable the “Internet of Things” (IoT). IoT networks largely rely on distributed access of billions of devices, but are still lagging in terms of combined reliability and low ...
Iman Hmedoush   +3 more
doaj   +1 more source

Development of a New Response Spectrum Analysis Approach for Determining Elastic Shear Demands on Shear-Dominated Steel Building Frames

open access: yesBuildings, 2023
This research is focused on improving the conventional response spectrum analysis (CRSA) method for the elastic shear demands estimation of shear-dominated steel building frames. An alternative approach named the improved response spectrum analysis (IRSA)
Junlin Li, Wei Wang
doaj   +1 more source

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