Results 61 to 70 of about 1,969 (224)

Unmanned aerial vehicle–based spatiotemporal phenotyping and growth modeling for forecasting potato yield

open access: yesThe Plant Phenome Journal, Volume 9, Issue 1, December 2026.
Abstract Monitoring spatial variations in plant growth and forecasting yield before harvest provides valuable insights for optimizing agronomic decision‐making in potato (Solanum tuberosum L.) cultivation. Although unmanned aerial vehicle (UAV)‐based remote sensing has recently enabled the development of tuber fresh weight (TW) estimation models, their
Yuto Imachi   +7 more
wiley   +1 more source

A Hybrid RF Coil for Whole‐Brain Imaging in Non‐Human Primates at 7 T

open access: yesMagnetic Resonance in Medicine, Volume 96, Issue 2, Page 996-1010, August 2026.
ABSTRACT Purpose Ultra‐high field MRI (≥ 7 T) offers unprecedented potential for mapping non‐human primate (NHP) brain function. However, complex electromagnetic systems are required to meet the challenges of UHF imaging and the mechanical demands of awake NHP studies.
Elias Djaballah   +5 more
wiley   +1 more source

Fractal Metasurfaces and Antennas: An Overview for Advanced Applications in Wireless Communications

open access: yesApplied Sciences
This paper provides an overview of fractal antennas and metasurfaces, exploring their design principles, performance, and applications. Fractal antennas, incorporating self-similar geometric shapes, offer several advantages, such as their multiband ...
Francesca Venneri   +2 more
doaj   +1 more source

Electrically Responsive Structural‐Color Materials

open access: yesAggregate, Volume 7, Issue 7, July 2026.
This review highlights electrically responsive structural‐color materials as next‐generation electrochromic platforms, summarizing key structural designs, modulation mechanisms, and performance metrics to enable continuous, low‐voltage, and tailorable color tuning for advanced display, camouflage, and security applications.
Qiming Wang   +4 more
wiley   +1 more source

Hollow plasmonic antennas for broadband SERS spectroscopy

open access: yesBeilstein Journal of Nanotechnology, 2015
The chemical environment of cells is an extremely complex and multifaceted system that includes many types of proteins, lipids, nucleic acids and various other components.
Gabriele C. Messina   +6 more
doaj   +1 more source

Assessing Measurement Repeatability of a Novel Anisotropic Phantom for Advanced Diffusion MRI Models

open access: yesMagnetic Resonance in Medicine, Volume 96, Issue 1, Page 339-348, July 2026.
ABSTRACT Purpose Diffusion MRI is widely used to characterize tissue microstructure, but standardization remains challenging, particularly for advanced models or regions with crossing fibers. Phantoms provide controlled environments to assess measurement repeatability independent of biological variability.
Lauren Stephens   +3 more
wiley   +1 more source

Multiband low-profile antenna for remote antenna unit picocell applications [PDF]

open access: yes, 2008
The design of a compact, low-profile antenna constructed from five wire-patch elements is investigated. For a fiber-radio system a critical design parameter is the isolation between two WLAN elements.
Callaghan, Peter, Batchelor, John C.
core   +1 more source

Beyond 5G and Non‐terrestrial Network (NTN) Integrated Architecture: Access Challenges for Expanding Artificial Intelligence of Things (AIoT)

open access: yesInternational Journal of Satellite Communications and Networking, Volume 44, Issue 4, Page 378-393, July/August 2026.
ABSTRACT This study analyzes the architecture of the beyond 5G‐NTN (Non‐terrestrial Network) integrated network and presents the technical, legal, and regulatory challenges and considerations for expanding the Artificial Intelligence of Things (AIoT) ecosystem.
Byung Woon Kim, Ga Eun Choi
wiley   +1 more source

Multispectral Shared‐Aperture Metasurface With RF Wide‐Angle and Polarization Stability for Tri‐Band Transmission and High‐Fidelity Imaging

open access: yesNanophotonics, Volume 15, Issue 12, 25 June 2026.
This study presents a multispectral compatible metasurface that achieves high transmission across three radio frequency bands, high optical transparency, and high fidelity imaging capabilities through a two‐dimensional spatial combination strategy of synergistic and minimalist low‐duty‐cycle units.
He Lin   +8 more
wiley   +1 more source

Multiband antenna design with enhanced radiations using characteristic mode analysis

open access: yesScientific Reports, 2023
In this research, a multiband patch antenna design based on the superposition of multiple modes at the same resonant frequency is presented. The concept of the contribution of lower order modes (LOMs) with the higher order dominant modes (HODMs) is ...
Dilaawaiz Fazal   +2 more
doaj   +1 more source

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