Results 81 to 90 of about 2,253,922 (294)
Biomass DNA: An Emerging Building Block for Advanced Materials
Advanced Materials, EarlyView.Biomass DNA is rapidly emerging from its traditional role as a genetic blueprint to serve as a versatile abundant, highly programmable polymeric building block. This review highlights the transformation of macroscopic bulk biomass DNA into next generation of functional materials, spanning from dynamic hydrogels, sustainable bioplastics, and high ...
Yuwei Hu, Itamar Willner, Li Niu
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IEEE Access, 2019 Electromagnetic spectrum distribution prediction is the basis for the development of wireless communication technology. Due to the high randomness of the rough sea surface, it is difficult to accurately predict the offshore electromagnetic spectrum ...
Zhenjia Chen, Yonghui Zhang
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On the propagation of electromagnetic waves through the atmosphere [PDF]
Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1947 Abstract A general method of tackling the problem of the propagation of electromagnetic waves in the ionosphere has been developed and the current methods of Appleton, Hartree, Saha, Rai and Mathur, etc., have been deduced as special cases from the general results.
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Life‐Like Ferrous Oxide Microspheres from Kombucha
Advanced Materials Interfaces, EarlyView.Kombucha bacterial cellulose, sodium alginate, and ferrous nitrate self‐assemble into membrane‐enclosed iron oxide microspheres. These microspheres bud daughter vesicles, sustain 24‐h electrochemical oscillations, and filter theta‐band signals.
Panagiotis Mougkogiannis +2 more
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Gong-kuang zidonghuaThe design, planning, and optimization of mining communication systems, personnel and vehicle positioning, wireless video, and wireless sensing systems such as 5G, 5.5G, WiFi 6, WiFi 7, UWB, and ZigBee require analysis of electromagnetic wave propagation
SUN Jiping, PENG Ming
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2D simulation of the electromagnetic wave across the non-uniform reentry plasma sheath with COMSOL
AIP Advances, 2019 The simulation of the electromagnetic wave propagation plays an important role in solving the communication blackout issue. Finite element analysis software package COMSOL is employed by us to model the electromagnetic wave propagation in the presence of
Jiahui Zhang +5 more
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Millifluidic Synthesis of Core–Shell Resonators For Tunable Sonic BandGaps in Acoustic Metamaterials
Advanced Materials Interfaces, EarlyView.Millimeter‐scale core–shell acoustic resonators are fabricated by a gravity‐assisted dripping approach and incorporated into epoxy composites at controlled volume fractions. The resulting alumina–core resonator composites show tunable low‐frequency acoustic attenuation, demonstrating a scalable route for integrating locally resonant metamaterial units ...
Colton Steiner +5 more
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Calculation method of relative wavelength of electromagnetic wave propagation loss in mines
Meitan kexue jishuOptimizing the layout of communication base stations and positioning substations for mobile communication, Internet of Things (IoT) communication, personnel and vehicle positioning in mines requires calculating electromagnetic wave propagation losses in ...
Jiping Sun, Ming Peng
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PINNs for Electromagnetic Wave Propagation
Physics-Informed Neural Networks (PINNs) solve physical systems by incorporating governing partial differential equations directly into neural network training. In electromagnetism, where well-established methodologies such as FDTD and FEM already exist, new methodologies are expected to provide clear advantages to be accepted.
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Advances in Halide Perovskites for Photon Radiation Detectors
Advanced Materials Technologies, EarlyView.This work highlights recent progress in perovskite‐based photon radiation detectors, covering organic–inorganic hybrid, inorganic, lead‐free double, and vacancy‐ordered halide perovskites. Their detection performance is compared, material‐specific advantages and challenges are examined, and provides insight into current limitations and future ...
Liangling Wang +3 more
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