Results 121 to 130 of about 1,292,199 (328)

A Robust Adaptive Objective Power Allocation in Cognitive NOMA Networks. [PDF]

Sensors (Basel), 2023
Zhou M, Guo X.
europepmc   +1 more source

C16 Phase High Entropy Borides With High Magnetic Anisotropy

Advanced Materials, EarlyView.
Rare‐earth‐free C16‐phase high entropy boride thin films exhibit enhanced magnetic anisotropy with coercivities surpassing their binary and ternary counterparts. Combinatorial synthesis of (Fe‐Co‐Ni‐Mn)2B films combined with density functional theory enables mapping of the magnetic properties across the composition space, revealing high entropy ...
Willie B. Beeson, Dhritiman Bhattacharya, Dinesh Bista, Bradley J. Fugetta, Gen Yin, Kai Liu   +5 more
wiley   +1 more source

Power Allocation for Massive MIMO-ISAC Systems

IEEE Transactions on Wireless Communications
Arrays with a large number of antennas can achieve outstanding performance for both communication and radar sensing. This motivates us to investigate the transmit beamforming design for massive multiple-input multiple-output integrated sensing and communications (mMIMO-ISAC) systems.
Bin Liao, Hien Quoc Ngo, Michail Matthaiou, Peter J. Smith   +3 more
openaire   +3 more sources

Correlated Dual‐Gradient Electrodes Enabling Spatially Synchronized Sulfur Redox in High‐Mass‐Loading Li–S Batteries Under High Current Densities

Advanced Materials, EarlyView.
Coupling a dual‐gradient carbonized framework with Fe2O3/Fe‐N‐C catalytic sites enables spatially synchronized sulfur redox across the entire electrode thickness in high‐mass‐loading Li–S batteries. This synergistic structural–catalytic design effectively mitigates concentration, ohmic, and electrochemical polarization, thereby achieving high‐capacity ...
Yuxuan Zhang, Yeongjun Oh, Jinwook Baek, Minyoung Kim, Zachary Didat, Han Wook Song, Sunghwan Lee   +6 more
wiley   +1 more source

Joint Optimization of Bandwidth and Power Allocation in Uplink Systems with Deep Reinforcement Learning. [PDF]

Sensors (Basel), 2023
Zhang C, Lv T, Huang P, Lin Z, Zeng J, Ren Y.   +5 more
europepmc   +1 more source

Multi‐scale Engineered Vasculature and Hierarchical Porosity via Volumetric Bioprinting‐Guided Photopolymerization‐Induced Phase Separation

Advanced Materials, EarlyView.
Vascularization in bioprinted hydrogels is limited by nanoscale porosity in hydrogel bionks. Volumetric bioprinting of gelatin–norbornene phase‐separating hydrogels permits to create centimeter‐scale constructs featuring interconnected multi‐scale porosity. Light dose gradients result in spatially controlled pore dimensions. Capillary‐scale vessels are
Oksana Y. Dudaryeva, Maj‐Britt Buchholz, Gabriel Größbacher, Sofia Amaral, Sammy Florczak, Camille Bonhomme, Alvaro Rojo Ferrer, Mark W. Tibbitt, Riccardo Levato   +8 more
wiley   +1 more source

The Microstructure and High‐temperature Cycle Oxidation Mechanism of the Nickel‐Based Superalloy Surface Treated by Laser Shock Processing and Ion Implantation at 1100 °C

Advanced Materials Interfaces, EarlyView.
Laser shock processingcombination with Hf ion implantation results in dual modification on the surface of GH202 nickel‐based superalloy, which induces a large number of crystal defects, providing channels for the diffusion of metal cations. Hf ion implantation forms an amorphous HfO2 layer.
Jiangdong Cao, Feng Ding, Yujie Ma, Xiping Yang, Bochen Jiang, Dong ming Shi, Siyuan Chen, Lang Bai   +7 more
wiley   +1 more source

Some power allocation algorithms for cognitive uplink satellite systems. [PDF]

EURASIP J Wirel Commun Netw, 2023
Louchart A, Tohidi E, Ciblat P, Gesbert D, Lagunas E, Poulliat C.   +5 more
europepmc   +1 more source

Understanding the Dynamics of Nanoparticle Formation and Evolution in Functional Oxides via In Situ SAXS/WAXS

Advanced Materials Interfaces, EarlyView.
In situ SAXS/WAXS enables real‐time tracking of nanoparticle formation and evolution in exsolved and infiltrated Ni‐based perovskites under reducing conditions. The combined technique captures nucleation, growth, and coarsening dynamics with high temporal resolution, providing statistically robust insights into structural and morphological ...
Elena Vicente, Sylvio Haas, Jose Manuel Serra, María Balaguer, Cecilia Solís   +4 more
wiley   +1 more source

Efficient Precoding and Power Allocation Techniques for Maximizing Spectral Efficiency in Beamspace MIMO-NOMA Systems. [PDF]

Sensors (Basel), 2023
Liu Y, Si L, Wang Y, Zhang B, Xu W.
europepmc   +1 more source