Results 111 to 120 of about 500,244 (287)

Sustained Self‐Powered Real‐Time Vibration Monitoring Through Integrated Nonlinear Harvesting and Energy‐Aware Wireless Sensing

Advanced Science, EarlyView.
A self‐powered vibration sensing platform integrates a quasi‐zero‐stiffness piezoelectric harvester, synchronized electric charge extraction, energy management, and wireless ADC acquisition. Ambient vibration is simultaneously harvested as energy and digitized as information, enabling sustained real‐time waveform monitoring without external power.
Yizhou Li, Ye Zhang, Hao Tang, Yaozi Zheng, Yawei Wang, Chaoyang Zhao, Liwei Dong, Dewen Yu, Junlei Wang, Chunbo Lan, Guobiao Hu   +10 more
wiley   +1 more source

Engineering Ultrastable Intrinsic Radicals: Graphene Quantum Dots With NIR‐II Emission for Dynamic Deep‐Tissue Bioimaging

Advanced Science, EarlyView.
Stable radicals are attractive for photonic and quantum information technologies but are often limited by instability. We stabilize intrinsic radicals in graphene quantum dots via 2D polymerization of perylene derivatives, where bilayer defect confinement suppresses quenching (100–500 K).
Qin Xu, Yijie Hou, Bingzhe Wang, Tesen Zhang, Yupeng Liu, Shuaiqi Li, Maohua Chen, Guichuan Xing, Dongbo Guo, Songnan Qu   +9 more
wiley   +1 more source

High-speed and potentially scalable UWOC/UWB converged transmission link for underwater wireless optical sensor networks

Frontiers in Physics
Underwater wireless optical sensor networks require high-speed, long-range, and scalable underwater wireless optical communication/ultra-wideband hybrid links to enable real-time data transmission and reliable communication between sensors and surface ...
Ammar Armghan, Meshari Alsharari, Khaled Aliqab, Ibrahim Alrashdi, Benish Kanwal, Jawad Mirza, Jawad Mirza, Imran Aziz, Imran Aziz   +8 more
doaj   +1 more source

Sonoselective Transfection of Glioma Endothelium

Advanced Science, EarlyView.
Delivering non‐viral, gene‐bearing nanoparticles with thiol‐decorated surfaces to gliomas with focused ultrasound yields transfection tropism for endothelial cells. From this platform, “sonoselective” transfection of glioma endothelium is achieved via incorporation of an endothelial cell‐specific promoter.
Anna C. Debski, Catherine M. Gorick, Victoria R. Breza, Jackson Tirrell, Krishan Perumal, Katherine M. Nowak, Ji Song, Natasha D. Sheybani, Richard J. Price   +8 more
wiley   +1 more source

Engineering Large‐Grain Metal Halide Perovskite Films via Chemical Vapor Deposition for High‐Performance, Ultralow‐Noise Perovskite Photodetectors

Advanced Science, EarlyView.
Chemical vapor deposition produces large‐grain, phase‐pure CsPbBr3 films (grains up to 35 µm) with Drude‐like terahertz photoconductivity and twofold higher carrier mobility versus spin‐coated references. These microstructural advances translate into photodetectors with a detectivity of 8.4 × 1012 Jones, dark current below 1 pA cm−2, X‐ray sensitivity ...
Roel Vanden Brande, Sudipta Seth, Lei Gao, Bapi Pradhan, Dilkhush Khicher, Anastasiia Bazylevska, Wei Qu, Christian Sternemann, Hai Wang, Steven De Feyter, Weidong Xu, Fei Zhang, Mischa Bonn, Johan Hofkens, Elke Debroye   +14 more
wiley   +1 more source

Giant Magneto‐Optical Effects in Two‐Dimensional Flat‐Band Antiferromagnets

Advanced Science, EarlyView.
RuOCl2${\rm RuOCl}{_2}$, a two‐dimensional antiferromagnet, hosts energy bands with pronounced directional flatness. This study demonstrates that the flat‐band‐induced optical transitions yield strongly anisotropic absorption and a record‐large magneto‐optical Schafer–Hubert effect, alongside exceptional linear dichroism exceeding 50%.
Ping Yang, Wanxiang Feng, Siyuan Liu, Shan Guan, Liwei Wen, Wei Jiang, Gui‐Bin Liu, Yugui Yao   +7 more
wiley   +1 more source

Tunable broadband terahertz absorber based on graphene with bilayer hexagonal

AIP Advances
An ultra-wideband absorber with an absorption rate of near unit is studied and numerically simulated in the terahertz frequency band. The proposed absorber is a stacked compact structure consisting of a double-layer patterned graphene embedded between ...
Maixia Fu, Na Xia, Yule Duan, Fei Zhou, Yinsheng Li   +4 more
doaj   +1 more source

DIFFERENTIAL CODE SHIFT REFERENCE IMPULSE RADIO ULTRA-WIDEBAND TRANSCEIVER: BIT ERROR RATE TESTS AND PERFORMANCE ASSESSMENTS

, 2015
Impulse radio is a wireless communication technique in which ultra-short pulses in the range of nano-seconds are used for the transmission of information.
Sahukar, Bhargava
core  

Open‐Shell Conjugated Polymers Enable Photothermoelectric Conversion and Detection of Short‐Wave Infrared Light

Advanced Science, EarlyView.
Efficient conversion and detection of short‐wave infrared (SWIR) photons are becoming increasingly important for emerging photonic and energy technologies. Here, we report an organic photothermoelectric device based on an open‐shell conjugated polymer that enables SWIR energy conversion and photon detection via the photothermoelectric effect.
Guan‐Lin Chen, Soonyong Lee, Shao‐Huan Hong, Jhih‐Min Lin, Han Young Woo, Cheng‐Liang Liu   +5 more
wiley   +1 more source

Robust Physical-Layer Key Generation Using UWB in Industrial IoT: A Measurement-Based Analysis

Journal of Sensor and Actuator Networks
This paper addresses the confidentiality of wireless communications in industrial internet-of-things environments by investigating the feasibility of secret key generation for link-layer encryption using ultra wideband (UWB) signals.
Lorenzo Mario Amorosa, Stefano Caputo, Lorenzo Mucchi, Gianni Pasolini   +3 more
doaj   +1 more source