Results 101 to 110 of about 24,580,897 (275)

Sulfur‐Free Ultrahigh‐Refractive‐Index Polymers Enabled by Densely Packed Oxygen‐Bridged Dibenzofuran‐Cardo Architectures

Advanced Functional Materials, EarlyView.
A new class of sulfur‐free, oxygen‐bridged dibenzofuran‐based polymers is developed for ultrahigh‐refractive‐index applications. The rigid π‐extended architecture and enhanced molecular polarizability enable exceptional optical performance, combining refractive indices up to 1.848 with high Abbe numbers and full visible transparency. This work offers a
Hend A. Hegazy, Gyeongsoo Kim, Sooyoung Lee, Mohamed R. Elmasry, Youn‐Chul Kim, Changsik Song   +5 more
wiley   +1 more source

Konsep Non-Orthogonal Multiple Access (NOMA) di Sistem Komunikasi 5G

, 2021
Non-orthogonal multiple access (NOMA) merupakan suatu teknik multiple access yang saat ini banyak dilakukan penelitian seputar penerapannya pada sistem komunikasi 5G.
Usman, Uke Kurniawan
core  

Joint Power and Channel Allocation for Non-Orthogonal Multiple Access in 5G Networks and Beyond. [PDF]

Sensors (Basel), 2023
Alghazali Q, Al-Amaireh H, Cinkler T.
europepmc   +1 more source

Coordinated Architectural and Chemical Reinforcement in the Crushing Mandible of a Soldier Termite

Advanced Functional Materials, EarlyView.
The crushing mandible of a soldier termite withstands substantial biting loads despite lacking mineral. Its cuticle is partitioned: convex teeth pair hardness and zinc enrichment with aligned chitin fibers for contact durability, while stiffer concave regions between teeth carry bending loads.
Andrew Tran Nguyen, Patryk Wąsik, Juan Fernando Cucuyame Morales, Marie Kate Palau, Adrian Francisco Duran Ornelas, Phani Saketh Dasika, Jin Hee Kim, Radhika Laxminarayana, Eric Hintsala, Greta Chang, Junzhi Liao, Lizhi Sun, Nathan Lord, Atsushi Arakaki, Paul Bardunias, Pablo Zavattieri, David Kisailus   +16 more
wiley   +1 more source

The Optimization of UAV-Assisted Downlink Transmission Based on RSMA

Mathematics
Unmanned Aerial Vehicles (UAVs) provide exceptional flexibility, making them ideal for mitigating communication disruptions in disaster-affected or high-demand areas.
Lin Huang, Daiming Qu, Jianguo Zhou, Jialin Zhang   +3 more
doaj   +1 more source

Mechanical Programming of PEGDA‐β‐CD Polyrotaxane‐Based Hydrogels via Host–Guest Molecular Recognition

Advanced Functional Materials, EarlyView.
A mechanically programmable hydrogel for tissue engineering is developed by modulating the molecular threading density of poly(ethylene glycol) diacrylate‐β‐cyclodextrin (PEGDA‐β‐CD) polyrotaxane and combining it with β‐CD‐modified gelatin. The polyrotaxane‐guided transition from disordered pores to laminar microstructures enables precise tuning ...
Shiyi Chen, Xudan Xing, Haopu Su, Dominik Voll, Xiaohe Xu, Jiafeng Wan, Tongtong Cui, Christian W. Schmitt, Stefan Bräse, Peng Li, Patrick Théato   +10 more
wiley   +1 more source

Evaluation of antenna and relay scheme for cooperative non‐orthogonal multiple access

IET Networks
An antenna selection followed by a relay selection scheme (ASRS) is proposed for cooperative non‐orthogonal multiple access (NOMA)‐based network. The proposed work selects an antenna to maximise the instantaneous rate of poor channel condition users ...
Vipin Balyan
doaj   +1 more source

Adaptive Cooperative Non-Orthogonal Multiple Access-Based Power Line Communication

IEEE Access, 2019
This paper proposes an adaptive cooperative non-orthogonal multiple access (NOMA) scheme for power line communication (PLC) networks, in which the source superimposes the data symbols to two users.
Honghong Pu, Xiaosheng Liu, Shu Zhang, Dianguo Xu   +3 more
doaj   +1 more source

Strategy for Non-Orthogonal Multiple Access and Performance in 5G and 6G Networks. [PDF]

Sensors (Basel), 2023
Al-Dulaimi OMK, Al-Dulaimi AMK, Alexandra MO, Al-Dulaimi MKH.   +3 more
europepmc   +1 more source

Unified Phase‐Field Framework for Antiferroelectric, Ferroelectric and Dielectric Phases: Application to HZO Thin Films

Advanced Functional Materials, EarlyView.
HfxZr1−xO2${\rm Hf}_x{\rm Zr}_{1-x}{\rm O}_2$ offers CMOS‐compatible nanoscale ferroelectricity yet suffers from a high Ec${\rm E}_c$ demanding large operating voltages. A unified phase‐field framework spanning AFE/FE/DE phases shows how FE grains soften neighboring AFE grains over λ$\lambda$ ≈$\approx$ 22–37 nm.
P. Pankaj, Sandeep Sugathan, Jiyoung Kim, Si Joon Kim, Pil‐Ryung Cha   +4 more
wiley   +1 more source