Results 201 to 210 of about 42,492 (267)

Robust, Breathable and Stretchable Liquid Metal Composite Nanofibre for Physiological Electrical Signal Monitoring

Advanced Science, EarlyView.
A conductive TPU/liquid‐metal nanofibrous film is fabricated via ultrasonic dispersion, electrospinning, and mold imprinting. The film is breathable, stretchable, deformation‐stable, and provides electromagnetic shielding. n‐Butanol encapsulation mitigates liquid‐metal surface tension and improves biocompatibility. Stable ECG, EOG, EEG, and EMG signals
Cong Huang, Zhenyu Chen, Zedong Jiang, Yuhao Jiang, Haohong Jiang, Zhenli Zhou, Yunlu Pan, Shu‐Jen Wang   +7 more
wiley   +1 more source

Defect‐Symmetry Engineered Gyroidal Photonic Crystals Achieve Monotonic Modulation of Bandgap Width With a Stable Mid‐Gap

Advanced Science, EarlyView.
Inspired by the twin grain boundary discovered in natural gyroidal networks, a series of gyroid‐derived photonic crystals are constructed based on defect‐symmetry engineering. The new series of structures enables monotonic tuning of the width of the photonic bandgap (PBG) while the central frequency of the PBG maintains stable.
Shuo Huang, Yang Zhou, Wenxin Ning, Hengliang Wang, Lu Han, Xueyan Feng   +5 more
wiley   +1 more source

Immunomagnetic‐MXene Bifunctional Probes for Ultrasensitive and Specific Terahertz Metasensing of Tumor‐Derived Exosomes

Advanced Science, EarlyView.
An immunomagnetic‐MXene bifunctional probe integrated with THz metamaterials enables ultrasensitive and specific detection of pancreatic cancer‐derived exosomes. Dual biomarker recognition ensures high specificity, while MXene signal amplification achieves a detection limit of 647 particles mL−1.
Weidong Jin, Jiyue Chen, Fengxin Xie, Huiyan Tian, Xuechen Dou, Yanqi Han, Lu Zhang, Jining Li, Xiang Yang   +8 more
wiley   +1 more source

Hybrid Spring‐Coupled Broadband Energy Harvester Integrated with CuSCN Functionalized Triboelectric Vibration Sensor for Self‐Sustainable Vehicular IoTs

Advanced Science, EarlyView.
A self‐sustainable vehicular vibration and indoor environment monitoring IoT platform is developed which integrates a hybrid spring‐coupled broadband energy harvester with a machine learning‐assisted PAN‐CuSCN nanofiber triboelectric vibration sensor for subtle‐to‐wide‐range vibration detection and road/speed classification.
Trilochan Bhatta, Gagan Bahadur Pradhan, Shital Sharma, MoonSeong Jo, Aklesh Teli, Hochan Chang, Jae Yeong Park   +6 more
wiley   +1 more source

Loss‐Engineered Terahertz Pixelated Metasensors for Enhanced Molecular Vibrational Fingerprint Sensing

Advanced Science, EarlyView.
This work presents a THz pixelated metasensor that employs loss optimization and spectral overlap for enhanced molecular vibrational fingerprint sensing. The flexible loss rate tuning through the out‐of‐plane dimension allows the device to operate in the optimal fingerprint enhancement condition.
Chenglin Yang, Yuqing Cui, Donghai Han, Yushan Hou, Zhonglei Shen, Andreas Tittl, Liuyang Zhang, Ruqiang Yan, Xuefeng Chen   +8 more
wiley   +1 more source

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Growing Electromagnetic Waves

Physical Review, 1956
The growth of radio and other electromagnetic waves is considered in terms of the ion motions of Bailey's electromagneto-ionic theory, of a double electron stream and other factors. These conclusions are reached: (i) The electromagneto-ionic theory predicts spurious growing waves which do not correspond to any interchange of energy between gas and ...
openaire   +1 more source

Electromagnetic-wave Wigglers

1992
The physical mechanism in the free-electron laser depends upon the propagation of an electron beam through a periodic magnetic field. Both incoherent and coherent radiation results from the undulatory motion of the electron beam in the external fields which permits a wave-particle coupling to the output radiation.
H. P. Freund, T. M. Antonsen
openaire   +1 more source

Nonlinear Electromagnetic X Waves

Physical Review Letters, 2003
Nonlinear optical media that are normally dispersive support a new type of localized (nondiffractive and nondispersive) wave packets that are X shaped in space and time and have slower than exponential decay. High-intensity X waves, unlike linear ones, can be formed spontaneously through a trigger mechanism of conical emission, thus playing an ...
CONTI C., TRILLO, Stefano, DI TRAPANI P., VALIULIS G., PISKARSKAS A., JEDRKIEWICZ O., TRULL J.   +6 more
openaire   +5 more sources

Electromagnetic Fields and Electromagnetic Waves

2017
Microwaves are not a simple heat source. Substances are heated directly by electromagnetic waves at energies commensurate with microwaves. Therefore, an understanding of the nature of these electromagnetic waves is the dominating discussion on microwave heating.
Satoshi Horikoshi, Robert F. Schiffmann, Jun Fukushima, Nick Serpone   +3 more
openaire   +1 more source

Flexible and Waterproof 2D/1D/0D Construction of MXene-Based Nanocomposites for Electromagnetic Wave Absorption, EMI Shielding, and Photothermal Conversion

Nano-Micro Letters, 2021
Wei Lu, Zhen Xiang, Yuyang Shi
exaly