Results 161 to 170 of about 45,656 (289)
A reversible, all‐optical modulation strategy enables resist‐free, sub‐diffraction nanolithography of halide perovskite films. Leveraging 800 nm fs laser‐induced crystallization and 365 nm laser driven decomposition, reconfigurable patterning achieves feature sizes down to 93.5 nm. This chemistry‐free approach offers dynamic control over optoelectronic
Zhengfen Wan +4 more
wiley +1 more source
We report a wearable photonic patch integrating room light‐ and sunlight‐activatable luminescent particles (RSLPs) for both photochemical tissue bonding and photobiomodulation. RSLPs harvest ambient light and emit red luminescence to drive chlorin e6–mediated collagen crosslinking.
Kyungjoo Jo +12 more
wiley +1 more source
Physical-layer security for the internet of things.
Das Internet der Dinge (IoT), bei dem Kommunikationsknoten durch eingebettete Kleinstsystemen gebildet werden, gewinnt an wirtschaftlicher Bedeutung. Durch den enormen Preisdruck stellt sich jedoch eine große Herausforderung dar, die Nachfrage nach erhöhter Sicherheit im IoT zu realisieren. In dieser Arbeit untersuchen wir einen neuen Sicherheitsansatz,
openaire +2 more sources
On the security of electric vehicles: a physical-layer perspective
Modern vehicles increasingly rely on the input from a variety of sensors and the continuous exchange of information. With the ongoing integration of these sensors into the decision-making process, the integrity of the measurements is becoming the ...
Köhler, Sebastian
core +1 more source
We report electrochemical quantum capacitance spectroscopy as an ambient, in situ probe for defect‐mediated electronic structure at 2D material interfaces. Using monolayer MoS2, the method resolves band edges and vacancy states, tracks sulfur‐vacancy evolution during hydrogen evolution, and links interfacial density‐of‐states changes to nearly ...
Mengyu Yan +9 more
wiley +1 more source
Multilayered Digital Microfluidic Chip for Cell‐Based Assays
A multilayered digital microfluidic (mDMF) chip architecture is introduced to improve throughput and robustness in cell‐based assays. By multilayering electrode components and dielectric layers on glass, this design significantly reduces actuation voltage, maintains reliability, and enables expansion of the operational area with minimum current leakage.
Mert Ozden +2 more
wiley +1 more source
A 3D‐Printed Blister Test Platform for Quantifying Biointerface Adhesion Mechanisms
A 3D‐printed blister platform enables energy‐resolved characterization of soft hydrogel–rigid interfaces. Integrating precision pressure control with hyperelastic modeling directly quantifies adhesion energy (G) and R‐curve toughening. Results reveal that modulating hydrogel concentration and surface roughness drives a tunable transition from cohesive ...
Yoontae Kim +4 more
wiley +1 more source
RIS-Aided Physical Layer Security with Imperfect CSI: A Robust Model-Driven Deep Learning Approach. [PDF]
Miao R +6 more
europepmc +1 more source
Ultrathin MXene/EMF composite foams achieve a specific shielding efficiency of 749.6 dB.dB·cm3$\mathrm{dB}\cdot {\mathrm{cm}}^{3}$/g, while the silver‐enhanced MXene/Ag/EMF reaches 81.4 dB shielding effectiveness at just 1.0 mm thickness. Both composites exhibit rapid Joule heating, retain stability up to 250∘C$^\circ{\rm C}$, and withstand 1000 ...
Abdullah A. Mahmood +7 more
wiley +1 more source
A Survey of Lattice-Based Physical-Layer Security for Wireless Systems with <i>p</i>-Modular Lattice Constructions. [PDF]
Khodaiemehr H +5 more
europepmc +1 more source

