Results 141 to 150 of about 2,196 (202)
Abstract Background Microwave breast hyperthermia is a noninvasive treatment method for breast cancer that utilizes microwave energy (ME) sources to raise tissue temperatures above 42∘C$^{\circ }{\rm C}$, inducing tumor cell necrosis. The efficiency of ME deposition depends on the electric field magnitude and tissue conductivity, with antenna phase and
Burak Acar, Tuba Yilmaz, Ali Yapar
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Abstract Purpose In MR electrical properties tomography (EPT), conductivity and permittivity are reconstructed from MR measurements. However, depending on the reconstruction method, reconstructed electrical properties (EPs) show large variability in vivo, reducing confidence in the reconstructed values for clinical application in practice.
Thierry G. Meerbothe+5 more
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This review describes recent (mostly last five years) progress in the synthesis, structural characterization, and properties of nanotubes from layered transition metal dichalcogenides, including in‐silico investigations. In the picture, ultra long multiwall nanotubes (up to 0.5 mm) nanotubes reported in Ref.
Lena Yadgarov, Reshef Tenne
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A broadly applicable strategy to achieve UV resistance, device flexibility, and uncompromised photovoltaic performance in perovskite solar cells is presented using a colorless polyimide with abrupt UV cut‐off behavior and a nanostructured transparent luminescent sticker incorporating Eu‐complex photon downshifter.
Jae‐Won Kim+9 more
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This study unveils a dual‐channel electrochemical surface‐enhanced Raman spectroscopy (EC‐SERS) strategy using nanolaminate Au/Ag/Ag nano‐optoelectrodes. It concurrently monitors plasmon‐enhanced vibrational and electronic Raman scattering, revealing distinct signatures of the (AgCl)* transition state during redox reactions.
Yuming Zhao+7 more
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A laser cleaning‐assisted femtosecond laser direct‐write processing technology for fabricating subwavelength antireflective microstructures on diamond is reported. This microstructure significantly improves the transmittance of diamond in the middle infrared and processes no significant angular dependence, which represent an important step in the field
He Cao+12 more
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All‐Dielectric Metalens for Efficient Chiral Characterization
In this article, a versatile all‐dielectric metalens is reported for compact and efficient chirality characterization. In silicon (Si) nanopillars with large height, it is revealed that the phases of two closely spaced wavelengths can be controlled independently without crosstalk.
Baichuan Bo+6 more
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Femtosecond Laser‐Regulated Microstructures for on‐Demand Functionalization of Magnetic Milli‐Robots
A femtosecond laser direct writing technique integrates hierarchical Additive‐LIPSS (laser‐induced periodic surface microstructures) onto flexible substrates, enabling precise, in situ functionalization of magnetic milli‐robots. This method supports tunable micro/nano‐scale structuring without compromising magnetic actuation and multimodal motion.
Ruyu Li+9 more
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An evaluation of the coax monopole antenna as a transmit array element for head imaging at 14 T
Abstract Purpose In comparison to dipole antennas, the coax monopole antenna (CMA) diminishes the possibility of cable‐coil coupling. This greatly facilitates cable routing in spatially restricted environments, such as head coil arrays. With the outlook of a 14T MRI system being installed at the Donders Center in Nijmegen, the Netherlands, this study ...
Lyanne M. I. Budé+4 more
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ABSTRACT Optical satellite communications provide high‐data rates with compact and power efficient payloads that can solve the bottlenecks of RF technologies. Photonic integrated circuits have the potential to reduce the cost, size, weight, and power consumption of satellite laser communications terminals, by integrating all the required photonic ...
Giulio Terrasanta+4 more
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