Results 151 to 160 of about 85,692 (393)

DESIGN OF A DUAL-BAND MIMO DIELECTRIC RESONATOR ANTENNA WITH PATTERN DIVERSITY FOR WIMAX AND WLAN APPLICATIONS [PDF]

open access: diamond, 2016
Aftab Ahmad Khan   +6 more
openalex   +1 more source

Probing Cellular Activity Via Charge‐Sensitive Quantum Nanoprobes

open access: yesAdvanced Materials, EarlyView.
A new quantum sensing modality detects shifts in zero‐field splitting caused by charge rearrangement with diamond nanocrystals in response to cellular activity. These electric‐field‐driven effects provide an alternative to temperature‐based interpretations, enabling real‐time, single‐cell readout of inflammation.
Uri Zvi   +16 more
wiley   +1 more source

Radiation Effects in Electret Organic Thin‐Film Transistors Due to High Flux and High Dose X‐Ray Irradiation

open access: yesAdvanced Materials, EarlyView.
Electret‐style organic thin‐film transistors are evaluated for synchrotron X‐ray dosimetry at ultra‐high dose rates, showing promising performance and agreement with standard detectors. XPS and NEXAFS reveal radiation‐induced oxidation and Fermi level shifts in pentacene and polystyrene, correlating with reduced charge carrier mobility and providing ...
Alexandria Mitchell   +12 more
wiley   +1 more source

Millimeter Wave All‐Around Antenna Based on Whispering Gallery Mode Dielectric Resonator for IoT‐Based Applications [PDF]

open access: hybrid, 2022
A. E. Kogut   +6 more
openalex   +1 more source

Physical Intelligence in Small‐Scale Robots and Machines

open access: yesAdvanced Materials, EarlyView.
“Physical intelligence” (PI) empowers biological organisms and artificial machines, especially at the small scales, to perceive, adapt, and even reshape their complex, dynamic, and unstructured operation environments. This review summarizes recent milestones and future directions of PI in small‐scale robots and machines.
Huyue Chen, Metin Sitti
wiley   +1 more source

The extended resonant modal theory and its applications

open access: yesIET Microwaves, Antennas & Propagation
The authors extend the resonant modal theory (RMT) developed previously for a metal object to an arbitrary source region consisting of metals, dielectrics, or a combination of both.
Ruqi Xiao, Wen Geyi, Guo Yang, Wen Wu
doaj   +1 more source

Regulation of the temperature stability in ordered olivine microwave dielectric ceramics with low loss for dielectric resonant antenna

open access: yesJournal of Advanced Ceramics
Olivine-type A2BO4 ceramics possess a low permittivity (εr) and low dielectric loss, contributing to a high quality factor (Q×f). However, the large negative temperature coefficient of the resonant frequency (τf) restricts their practical applications ...
Huaicheng Xiang   +6 more
doaj   +1 more source

A Functional 2D Carbon Allotrope Combining Nanoporous Graphene and Biphenylene Segments

open access: yesAdvanced Materials, EarlyView.
The synthesis of a novel nanoporous graphene (NPG) is reported with biphenylene segments via thermal fusion of 12‐armchair porous graphene nanoribbons grown on gold surfaces. Characterization using STM, AFM, and DFT reveals low‐defect semiconducting behaviour and tunable band gaps.
Paula Angulo‐Portugal   +14 more
wiley   +1 more source

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