Results 81 to 90 of about 14,399 (216)
Dual‐Mode Magnetic Elastomer for On‐Demand Motion and Degradation
Advanced Functional Materials, EarlyView.A dual‐mode magnetic elastomer is introduced, enabling DC field‐driven programmable actuation and AC field‐driven magnetothermal degradation. GHz‐range magnetic fields generate ultrafast heating of magnetic nanoparticles that activates cleavage of the silicone elastomer matrix.
Jieun Han +13 more
wiley +1 more source
IEEE Open Journal of the Communications SocietyRadio Frequency (RF) fingerprinting stands out as a powerful technique for device identification, exploiting intrinsic hardware-induced signal variations that are difficult to mimic and thus provide a robust layer of security in wireless systems.
Nordine Quadar +2 more
doaj +1 more source
Titanium Suboxides Responsible for Electronic Anomaly Near Room Temperature in the Ti3C2Tx MXene
Advanced Functional Materials, EarlyView.Our multi‐technique study reveals that the near‐room‐temperature anomaly in Ti3C2Tx MXene is linked to titanium suboxide nanodomains, including Ti3O5, embedded within the MXene host. Their temperature‐driven transformation provides an alternative explanation to solvent‐ and swelling‐based models and offers new insight into the thermally activated ...
Bence G. Márkus +8 more
wiley +1 more source
Advanced Functional Materials, EarlyView.We investigate how side‐chain chemistry and hydrogen bonding affect electrochemical doping in poly(propylenedioxythiophene) polymers. Replacing oligoether side chains with hydroxyl or carboxylic acid groups nearly triples electrochemical conductivity.
Joshua M. Rinehart +5 more
wiley +1 more source
Advanced Functional Materials, EarlyView.An integrated material platform combining engineered SiNx thin films and printable ZrO2 nanoparticle‐embedded resin enables broadband achromatic metalenses from the ultraviolet to visible range. The demonstrated meta‐optics achieve near‐diffraction‐limited focusing with minimal chromatic aberration.
Hyunjung Kang +3 more
wiley +1 more source
Safety assessment of electromagnetic exposure from a 13.56 MHz RF anti-theft device
Fushe yanjiu yu fushe gongyi xuebaoRadio frequency anti-theft devices employ radio frequency identification (RFID) technology to identify and track objects. An anti-theft system based on the identification of information legitimacy judgment realizes an anti-theft alarm function.
YANG Zhongyi, LU Mai
doaj +1 more source
Advanced Functional Materials, EarlyView.A fully programmable, dual‐inductive switchable halide perovskite memristor is demonstrated through precise BDAI2‐mediated interface engineering. This ion‐modulating layer suppresses stochastic filamentary growth, enabling stable, non‐filamentary switching via dynamic barrier modulation.
So‐Yeon Kim, Juan Bisquert
wiley +1 more source
KAN-ResNet-Enhanced Radio Frequency Fingerprint Identification with Zero-Forcing Equalization
SensorsRadio Frequency Fingerprint Identification (RFFI) is a promising device authentication technique that utilizes inherent hardware flaws in transmitters to achieve device identification, thus effectively maintaining the security of the Internet of Things ...
Hongbo Chen +4 more
doaj +1 more source
Ultrasensitive Anti‐Stokes Luminescence Thermometry in Transition Metal Dichalcogenide Monolayers
Advanced Functional Materials, EarlyView.We demonstrate a highly sensitive nanothermometer using anti‐Stokes photoluminescence, also known as photoluminescence upconversion (UPL), in monolayer tungsten disulfide. A strong resonantly enhanced UPL is observed, confirming the central role of optical phonons in the PL upconversion mechanism.
Sharada Nagarkar +6 more
wiley +1 more source
Security and SafetyUser Equipment (UE) authentication holds paramount importance in upholding the security of wireless networks. A nascent technology, Radio Frequency Fingerprint Identification (RFFI), is gaining prominence as a means to bolster network security ...
Lin Yun, Wang Hanhong, Zha Haoran
doaj +1 more source