Results 71 to 80 of about 957 (203)

Dielectric properties of complete oil palm trunk sample (healthy and unhealthy)

AIP Advances, 2019
Microwave technology is utilized in many fields, especially in measuring the dielectric properties. In this study, the dielectric properties of a complete Oil Palm Trunk (OPT) log are investigated for both healthy and unhealthy (has hollow inside ...
Tale Saeidi, Idris Ismail, Wong Peng Wen, Adam R. H. Alhawari   +3 more
doaj   +1 more source

Machine Learning‐Driven Design of Multicomponent Bone Inorganic Matrix Mimicking Scaffolds for Osteogenesis Enhanced by Neurogenesis

Advanced Science, EarlyView.
Schematic illustration of development of experimental datasets and algorithm models, screening and preparation of the scaffolds and their applications in vivo. ABSTRACT Bone defects require materials with osteogenic, neurogenic, and angiogenic activity, yet designing such materials within high‐dimensional compositional spaces remains challenging. Here,
Kunlu Lin, Ying Yang, Chuyao Zhou, Hanyue Mao, Zhiquan Zhang, Libangxi Liu, Xiaoying Yu, Haoming Liu, Long Liu, Xiaoyan Wang   +9 more
wiley   +1 more source

The Complex Permittivity of Biological Tissues: A Practical Measurement Guideline

IEEE Access
Despite the significant number of studies published on the measurements of complex permittivity of biological tissues in the last thirty years, implementing a successful measurement program for dielectric measurements can still present a challenge for ...
Lourdes Farrugia, Emily Porter, Raquel C. Conceicao, Simona Di Meo, Daniela M. Godinho, Julian Bonello, Mykolas Ragulskis, Ilja Ocket, Laura Farina, Marta Cavagnaro, Azadeh Peyman   +10 more
doaj   +1 more source

Dielectric Properties of Human Hand Tissue for Handheld Devices Testing

IEEE Access, 2019
The operation of antennas deployed in mobile terminals is affected by the presence of human tissue in their near-field region. Therefore, testing the antenna performance, when the radiator is located in close vicinity to the user, is of paramount ...
Stanislav Stefanov Zhekov, Ondrej Franek, Gert Frolund Pedersen   +2 more
doaj   +1 more source

Bamboo‐Slip‐Inspired Conformal Reconfigurable Metasurfaces

Advanced Science, EarlyView.
Bamboo‐slip‐inspired conformal reconfigurable metasurface system. The structure is mainly composed of three parts, which are conformal metasurface, pattern reconfigurable antenna, and control components (such as Field Programmable Gate Array (FPGA)). Conformal metasurfaces draw inspiration from the design of ancient Chinese bamboo slips.
Qifan Li, Shaofeng Zhang, Qiang Feng, Dexiao Xia, Yajie Mu, Xiangjin Ma, Jiaqi Han, Haixia Liu, Guangyao Liu, Long Li   +9 more
wiley   +1 more source

Deep Learning-Enhanced Dielectric Sensing for Rapid Quality Assessment of ‘Starks Gold’ Sweet Cherries

Agronomy
Soluble solids content (SSC) is one of the most important indicators of sweetness, ripeness, and market quality in sweet cherries. However, conventional SSC determination is destructive, labor-intensive, and unsuitable for rapid or large-scale quality ...
Erhan Kavuncuoglu, Kamil Sacilik, Mehmet Akif Buzpinar, Burak Ozbey, Necati Cetin, Fernando Auat Cheein   +5 more
doaj   +1 more source

[Comparison of dielectric properties of normal human esophagus and esophageal cancer using an open-ended coaxial probe]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao, 2021
Huang Q, Lu D, Han J, Yu H, Dong W, Cai K, Yu X.   +6 more
europepmc   +1 more source

Transparent Topological Meta‐Diplexer via Tightly Confined Valley Surface States

Advanced Science, EarlyView.
An optically transparent topological metasurface supporting tightly confined valley surface states enables robust and flexible wave routing in an ultrathin platform. A compact transparent meta‐diplexer with spatially and spectrally separated channels is realized, while communication experiments verify high‐fidelity signal transmission, opening new ...
Sijie Li, Ping Li, Zhihao Lan, Yin Li, Hang Wong, Menglin L.N. Chen   +5 more
wiley   +1 more source

Topology‐Enabled Finite‐Band Absorption Framework Based on a Bioinspired Nested Dual‐Loop Architecture

Advanced Science, EarlyView.
A nuclear‐pore‐inspired nested dual‐loop architecture redistributes electromagnetic energy through coupled transport, confinement, and dissipation pathways. Integrated with Co/Fe3O4 dual‐magnetic composites and topology optimization, the 11‐mm‐thick absorber delivers continuous 2–40 GHz attenuation, raises finite‐band structural utilization to 82%, and
Shaokang Liu, Weicheng Liao, Pinchen Luo, Mengchen Jin, Tangming Yan, Xing Zhao, Qingshan Wang   +6 more
wiley   +1 more source

From Magnetic Fibers to Paper Architectures: A Lightweight Strategy for Robust Low‐Frequency Microwave Absorption

Advanced Science, EarlyView.
A scalable process converts para‐aramid fibers into soft‐magnetic building blocks via micrometer‐thick Fe0.64Ni0.36 (Invar‐type) coatings. Assembled into paper, they form a hierarchical conductive network whose tunable permeability enables thin, lightweight microwave absorption in the low‐frequency (S‐band) regime.
You Wu, Yanlong Li, Haitong Sun, Tao Liu, Kehai Liu, Kaihui Liu, Zhaoxia Sun, Wenbo Ju   +7 more
wiley   +1 more source