Results 211 to 220 of about 16,741 (297)

Multi-band circularly polarized patch antenna with CPW feed based on sunflower geometry and Gielis superformula for wireless communication. [PDF]

Sci Rep
Joshi K, Soni GK, Yadav D.
europepmc   +1 more source

Absorption‐Dominant Electromagnetic Interference Shielding of Ti3C2Tx MXene‐Coated and Fe3O4‐Integrated TPMS Composites with Coupled Gradient Conductivity and Size‐Graded Structure

Advanced Science, EarlyView.
A functionally driven variable‐cell size and gradient‐conductive coated TPMS structure was developed. Accordingly, stepwise longitudinal gradient impedance was realized, achieving absorption‐dominant EMI shielding (absorptivity≈0.85) with an EMI SET of ≈ 59 dB, for 10 mm‐thick composites. Further increasing the thickness of composites to 20 mm achieved
Abdallah Kamal, Baosong Li, Dawei Zhang, Muhammad Mujtaba Syed, Adam Otabil, Faisal Shahzad, Lianxi Zheng, Kin Liao   +7 more
wiley   +1 more source

Design and Primary Investigations of a Double Ring Loop Antenna for Ice, Frost and Wildfire Detection in Early Warning Systems. [PDF]

Sensors (Basel)
Alrawashdeh R.
europepmc   +1 more source

Review: Insight on Porous Carbon Positive Electrode for Sodium‐Ion Capacitors: Interplay Between Synthesis, Properties, and Performance

Advanced Science, EarlyView.
Sodium ion capacitor (SIC) is currently constrained by the low discharge capacity of commercial activated carbon as positive electrode material. This review provides a holistic summary of research efforts on alternative porous carbon materials for SIC. Image created by the authors with www.biorender.com.
Ademola Adeniji, Adrian Beda, Camélia Matei Ghimbeu   +2 more
wiley   +1 more source

Cascades of quasi-bound states in the continuum. [PDF]

Nanophotonics
Solodovchenko N, Bochkarev M, Samusev K, Limonov M.   +3 more
europepmc   +1 more source

Surface Plasmon Enhanced Photoluminescence of Carbon Dots Formed In Situ on Silver Gratings

Advanced Science, EarlyView.
Carbon emitters formed in situ on a silver grating via plasmonic catalysis yield enhanced spontaneous emission by preferential radiative decay into surface plasmons. Enhancement manifests as emission exhibiting characteristics of coherence (polarization, directionality), and accelerated lifetimes of ∼30 ps, yielding Purcell factors of ∼70.
Maryam Sadat Amiri Naeini, Jaspreet Walia, Luis Angel Mayoral‐Astorga, Hyung Woo Choi, Arnaud Weck, Pierre Berini   +5 more
wiley   +1 more source

Low-profile metasurface-backed wideband antenna array for mm-wave applications. [PDF]

Sci Rep
Kiani SH, Rafique U, Shoaib N, Abbasi MI, Elmannai H, Ibrahim MI, Dalarsson M.   +6 more
europepmc   +1 more source

A High‐Performance and Fully Recyclable Supramolecular Nanofibrous Membrane for Multifunctional Air Filtration

Advanced Science, EarlyView.
A green, thermoreversible self‐assembly strategy yields a multifunctional and recyclable supramolecular nanofibrous membrane. Graphene oxide (GO) nanosheet acts as a heterogeneous nucleation‐templating agent, simultaneously modulating the supramolecular crystal packing while tailoring the nanofibrous architecture for elite performance.
Wenjing Sun, Ding Yuan, Jiaqi Wan, Junyu Chen, Zhen Yan, Yinuo Yan, Senjie Dong   +6 more
wiley   +1 more source

Enhanced isolation in aperture fed dielectric resonator MIMO antennas for 5G Sub 6 GHz applications. [PDF]

Sci Rep
Patel A, Upadhyaya T, Girjashankar PR, Swati MV, Kumar OP.   +4 more
europepmc   +1 more source