Results 51 to 60 of about 14,728 (161)

All‐in‐One Underwater Quality Evaluation Metamaterial With Mechanical Robustness, Sound Attenuation, and Diffuse Reflection

Advanced Science, EarlyView.
In this work, a bioinspired all‐in‐one underwater quality evaluation metamaterial, combining sound attenuation, diffuse reflection, and mechanical robustness, is proposed based on jumping spider locomotion and human skeletal biomechanics. Meanwhile, a CNN‑driven quality evaluation framework is established for theoretically dimension‐reduced ...
Hongze Li, Zhenyu Li, Jinshui Yang, Jianhao Wu, Yidan Chen, Linzhi Wu, Hong Hu, Penglin Gao, Yegao Qu   +8 more
wiley   +1 more source

Resonant radiation pressure on neutral particles in a waveguide [PDF]

, 2001
A theoretical analysis of electromagnetic forces on neutral particles in an hollow waveguide is presented. We show that the effective scattering cross section of a very small (Rayleigh) particle can be strongly modified inside a waveguide.
A. Ashkin, A. Ashkin, A. Ashkin, A. García-Martín, A. García-Martín, A. García-Martín, C. N. Cohen-Tannoudji, C. S. Chu, Ch. Kunze, E. Tekman, G. A. Askar'yan, J. A. Stratton, J. J. Sáenz, J. P. Gordon, M. A. Ol'Shanii, M. J. Renn, M. J. Renn, M. Lester, M. Lester, M. Nieto-Vesperinas, P. F. Bagwell, P. San José, R. Gómez-Medina, S. Chu, V. Letokhov, V. Letokhov, W. D. Phillips   +26 more
core   +2 more sources

Wearable Tailored Passive Radiative Cooling Textile for Flexible Electronic Integration

Advanced Science, EarlyView.
A scalable, additive‐free wearable tailored passive radiative cooling textile (WRCT) with hierarchically structured fibers delivers exceptional thermal management, combining >95% solar reflectance, 0.96 mid‐infrared emissivity, and ultralow thermal conductivity (0.041 W/m·K).
Lung Chow, Jianpeng Zhang, Zehua Peng, Denglin Ye, Binbin Zhang, Jian Li, Wooyoung Park, Chentao Du, Xingcan Huang, Chun Ki Yiu, Yuze Qiu, Jingkun Zhou, Zhenlin Chen, Yuyu Gao, Weibin Zhu, Pengcheng Wu, Guangyao Zhao, Qiang Zhang, Yuan Guo, Zuowei Sun, Zhan Shen, Shuaiqi Ren, Sang Min Won, Jiyu Li, Xinge Yu   +24 more
wiley   +1 more source

Damage Detection of CFRP Stiffened Panels by Using Cross-Correlated Spatially Shifted Distributed Strain Sensors

Applied Sciences, 2020
This paper presents a cross-correlation function-based method applied to a spatially shifted differential strain readout vectors using distributed sensors under backscattering random noise and impact excitations.
Monica Ciminello, Natalino Daniele Boffa, Antonio Concilio, Bernardino Galasso, Fulvio Romano, Ernesto Monaco   +5 more
doaj   +1 more source

Symmetry 28 Gbps/λ WDM Access Network Together With Confidential Connection Between Two Specific Clients

IEEE Access, 2021
In this work, we demonstrate a symmetry 28 Gbps/ $\lambda $ on-off keying (OOK) wavelength-division-multiplexing passive optical network (WDM-PON) architecture together with confidential connection between two specific optical network units (ONUs).
Chien-Hung Yeh, Bo-Yin Wang, Wei-Hung Hsu, Wen-Piao Lin, Chi-Wai Chow   +4 more
doaj   +1 more source

Acoustic phonon dynamics in thin-films of the topological insulator Bi2Se3 [PDF]

, 2015
Transient reflectivity traces measured for nanometer-sized films of the topological insulator Bi2Se3 revealed GHz-range oscillations driven within the relaxation of hot carriers photoexcited with ultrashort laser pulses of 1.51 eV photon energy.
Babakiray, Sercan, Glinka, Yuri D., Holcomb, Mikel B., Johnson, Trent A., Lederman, David   +4 more
core   +3 more sources

Twisted MoS2 Bilayers as Functional Elements in Memtransistors: Hysteresis, Optical Signatures, and Photocurrent Kinetics

Advanced Electronic Materials, EarlyView.
ABSTRACT Layered 2D materials are considered as promising for memristive applications due to their ultimate vertical scalability compared to conventional semiconductor films and pronounced hysteresis properties. Bias‐resolved Raman and Photoluminescence mapping is used to quantify strain from phonon shifts and carrier density from the exciton‐trion ...
Vladislav Kurtash, Ilya Eliseyev, Valery Davydov, Heiko O. Jacobs, Jörg Pezoldt   +4 more
wiley   +1 more source

Direct measurements of localized spectral modes in random distributed feedback fiber laser

Results in Physics, 2021
We present observation of ultra-narrow spectral modes in the generation of the random fiber laser by using a technique of optical heterodyning in real-time. We found that such modes have a spectral width below 3 MHz. The modes are spatially extended over
Artem E. Kirik, Ilya D. Vatnik, Dmitry V. Churkin   +2 more
doaj   +1 more source

Millimeter Wave Scattering from Neutral and Charged Water Droplets

, 2010
We investigated 94GHz millimeter wave (MMW) scattering from neutral and charged water mist produced in the laboratory with an ultrasonic atomizer. Diffusion charging of the mist was accomplished with a negative ion generator (NIG).
A. Heifetz, A.C. Raptis, Bohren, Bohren, Chernyi, Dombrovsky, Dumouchel, Geldart, Gopalsami, H.T. Chien, Harrison, Ischimaru, Klačka, Liebe, Mamatkulov, Mishchenko, N. Gopalsami, Peurrung, Rapaport, S. Liao, Shevkunov, van de Hulst, Whitesides   +22 more
core   +1 more source

A Solution for Exosome‐Based Analysis: Surface‐Enhanced Raman Spectroscopy and Artificial Intelligence

Advanced Intelligent Discovery, EarlyView.
Exosomes are emerging as powerful biomarkers for disease diagnosis and monitoring. This review highlights the integration of surface‐enhanced Raman spectroscopy with artificial intelligence to enhance molecular fingerprinting of exosomes. Machine learning and deep learning techniques improve spectral interpretation, enabling accurate classification of ...
Munevver Akdeniz, Zakarya Al‐Shaebi, Omer Aydin   +2 more
wiley   +1 more source