Results 71 to 80 of about 1,593,354 (203)

Spectral- and Energy-Efficiency of Multi-Pair Two-Way Massive MIMO Relay Systems Experiencing Channel Aging

open access: yesIEEE Access, 2019
In this paper, we demonstrate the impact of channel aging on the spectral- and energy-efficiency performance of the multi-pair two-way massive MIMO relay (MTW-MMR) systems, where massive antennas are deployed at the relay and the amplify-and-forward (AF)
Lixin Li   +7 more
doaj   +1 more source

Influence of the Alkaline Reserve of Chloride-Contaminated Mortars on the 6-Year Corrosion Behavior of Corrugated UNS S32304 and S32001 Stainless Steels

open access: yesMetals, 2019
The durability of two lean corrugated duplex stainless steel (UNS S32304 and S32001) bars manufactured for concrete reinforcement was studied in four different corrosive conditions.
Asunción Bautista   +2 more
doaj   +1 more source

Uncommon cases of foreign bodies in the esophagus--duplex coins [PDF]

open access: yes, 1970
Two cases of multiple foreign bodies, i. e., duplex coins in the esophagus are reported. These foreign bodies were removed by peroral esophagoscopy successfully.
Tasaka, Seido, Oguri, Yoshio
core   +1 more source

The tRNA‐Modification Geranyl‐2‐Thiouridine Enables RNA‐Lipid Association

open access: yesAngewandte Chemie International Edition, EarlyView.
We report the preparation of mono‐ to tri‐geranylated RNA and the association of the hydrophobic RNA with membranes for future efficient incorporation of RNA into liposomes. ABSTRACT The packaging of RNA in lipid nanoparticles for protection and delivery was key for the development of mRNA vaccines and therapeutics. Formulation requires the addition of
Johannes Singer   +3 more
wiley   +1 more source

Optimal Mode Selection for Full-Duplex Enabled D2D Cognitive Networks

open access: yesIEEE Access, 2019
Full-Duplex (FD) and Device-to-Device (D2D) communications have been recognized as one of the successful solutions of spectrum scarcity in 5G networks. Significant advancements in self-interference-to-power-ratio (SIPR) reduction have paved the way for ...
Noman Haider   +3 more
doaj   +1 more source

A critical reappraisal of the carotid sinus and carotid bulb: Distinguishing neurohistological function from vascular geometry

open access: yesThe Anatomical Record, EarlyView.
This review redefines the carotid bulb (CB) as a variable geometric dilation shaped by hemodynamics and the carotid sinus (CS) as a conserved neurohistological baroreceptor field. Distinguishing these entities clarifies a century of anatomical confusion and links geometry, neurohistology, and clinical interpretation within a unified framework ...
Răzvan Costin Tudose   +2 more
wiley   +1 more source

Clock Genes Regulate Ca2+ Signaling and Mitochondrial Bioenergetics to Inhibit Sjögren Disease

open access: yesArthritis &Rheumatology, EarlyView.
Objective Although Ca2+ signaling and metabolism have been identified as key determinants for the development of Sjögren disease (SjD), the intricate connection between them and salivary gland physiology remains poorly understood. Methods Fluorescence‐based Ca2+ imaging, RNA sequencing, and mitochondrial activity were used to investigate the effects of
Viktor R. Drel   +12 more
wiley   +1 more source

Perovskite Photodetectors at the Intelligence Frontier: From Tunable Materials to Adaptive Optoelectronic Systems

open access: yesCarbon Energy, EarlyView.
This comprehensive review presents a progressive roadmap for perovskite vision detectors. Centered on perovskite‐based artificial perception, the graphic illustrates a systematic evolution: starting with fundamental material engineering and device architectures, advancing toward complex functional strategies such as flexible neuromorphic imaging ...
Chenglong Li   +14 more
wiley   +1 more source

Rapid Access to Photoswitchable RNA Binders: Fluorination Enhances Protein Rescue by Exon Inclusion

open access: yesChemistry – A European Journal, EarlyView.
An adaptable approach, many light‐switchable RNA binders. We report a versatile strategy for rapidly synthesizing photoswitchable RNA binders. The ligands can target SMN2 pre‐mRNA, restoring the levels of the corresponding protein by exon‐inclusion rescue.
Lei Zhang   +10 more
wiley   +1 more source

Two-queue polling system as a model of an integrated access and backhaul network node in half-duplex mode

open access: yesDiscrete and Continuous Models and Applied Computational Science
Integrated Access and Backhaul (IAB) technology facilitates the establishment of a compact network by utilizing repeater nodes rather than fully equipped base stations, which subsequently minimizes the expenses associated with the transition towards next-
Dmitry I. Nikolaev   +2 more
doaj   +1 more source

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