Results 61 to 70 of about 332,732 (276)

Light‐Actuated Fiber‐Climbing Inchworm Robot Toward Endoluminal Navigation

Advanced Functional Materials, EarlyView.
A kirigami‐inspired soft inchworm robot harnesses optical energy from a customized side‐emitting optical fiber, guaranteeing its propulsion along the fiber body. The wavelength‐selective responsiveness of dye‐functionalized liquid crystal elastomers and the application of temporal illumination patterns enable sequential control of robot components. The
Antonio Lobosco, Leilei Song, Fan Liu, Yu‐Hsiang Lin, Venkatasubramanian Kalpathy Venkiteswaran, Hao Zeng, Sarthak Misra   +6 more
wiley   +1 more source

Large Transverse Thermoelectric Effect in Weyl Semimetal TaIrTe4 Engineered for Photodetection

Advanced Functional Materials, EarlyView.
This experimental work shows that the anomalous scanning photocurrent response patterns of the Weyl semimetal TaIrTe4${\rm TaIrTe}_4$ under visible and long‐wave infrared illumination are due to a large transverse thermoelectric response of the material.
Morgan G. Blevins, Xianglin Ji, Vivian J. Santamaria‐Garcia, Abhishek Mukherjee, Thanh Nguyen, Mingda Li, Svetlana V. Boriskina   +6 more
wiley   +1 more source

Multi-view Sample Augumentation for SAR Based onDifferentiable SAR Renderer

Leida xuebao
Synthetic Aperture Radar (SAR) is extensively utilized in civilian and military domains due to its all-weather, all-time monitoring capabilities. In recent years, deep learning has been widely employed to automatically interpret SAR images.
Hecheng JIA, Xinyang PU, Yanni WANG, Shilei FU, Feng XU   +4 more
doaj   +1 more source

Application of Volterra Nonlinear Compensation in 75-GHz mm-Wave Fiber-Wireless System

IEEE Photonics Journal, 2017
In this paper, we propose and experimentally demonstrate a millimeter-wave (mm-wave) system at 75 GHz with discrete Fourier transform spread (DFT-S) orthogonal frequency-division multiplexing (OFDM) signal transmission.
Long Chen, Jiangnan Xiao, Jianjun Yu
doaj   +1 more source

Transverse Wave Propagation in Relativistic Two-fluid Plasmas in de Sitter Space

, 2008
We investigate transverse electromagnetic waves propagating in a plasma in the de Sitter space. Using the 3+1 formalism we derive the relativistic two-fluid equations to take account of the effects due to the horizon and describe the set of simultaneous ...
A. Strominger, A. Strominger, A.G. Reiss, A.H. Guth, B. Schmidt, C.G. Tsagas, C.G. Tsagas, C.G. Tsagas, C.G. Tsagas, C.M. Hull, C.M. Hull, C.P. Dettman, D. Papadopoulos, D.A. Macdonald, E. Harris, F. Jüttner, J. Bernstein, J. Daniel, J. Sakai, J.P. Ostriker, K. Kleidis, K. Kleidis, K. Subramanian, K.A. Holcomb, K.A. Holcomb, K.S. Thorne, K.S. Thorne, M. Atiqur Rahman, M. Forsberg, M. Hossain Ali, M. Marklund, M. Marklund, M. Servin, N. Bahcall, P.O. Mazur, R. Narayan, R.H. Price, S. Perlmutter, S. Perlmutter, T. Vachaspati, V. Buzzi, V. Buzzi, X.-H. Zhang, X.-H. Zhang   +43 more
core   +1 more source

Optoelectrical Devices for Neural Interfacing: Engineering Integration, Stability, and Multimodal Sensing

Advanced Healthcare Materials, EarlyView.
Implantable optoelectrical devices are an effective resource for the modulation and monitoring of neural activity with high spatiotemporal resolution. This review discusses current challenges faced by these devices and outlines future perspectives for the development of next‐generation neural interfaces targeting chronic, multisite, and multimodal ...
Stella Aslanoglou, Barbara Spagnolo, Antonio Balena, Massimo De Vittorio, Ferruccio Pisanello   +4 more
wiley   +1 more source

Optical and SAR Image Fusion: A Review of Theories, Methods, and Applications

Remote Sensing
Remote sensing technology has become an indispensable core means for Earth observation. As two of the most commonly used remote sensing modalities, the fusion of optical and synthetic aperture radar (SAR) (OPT-SAR fusion) can effectively overcome the ...
Ruyi Zhang, Yi Yang, Zhuoxuan Li, Peixuan Li, Haipeng Wang   +4 more
doaj   +1 more source

SAR Automatic Target Recognition Using a Roto-Translational Invariant Wavelet-Scattering Convolution Network

Remote Sensing, 2018
The algorithm of synthetic aperture radar (SAR) for automatic target recognition consists of two stages: feature extraction and classification. The quality of extracted features has significant impacts on the final classification performance.
Haipeng Wang, Suo Li, Yu Zhou, Sizhe Chen   +3 more
doaj   +1 more source

The influence of strong field vacuum polarization on gravitational-electromagnetic wave interaction

, 2010
The interaction between gravitational and electromagnetic waves in the presence of a static magnetic field is studied. The field strength of the static field is allowed to surpass the Schwinger critical field, such that the quantum electrodynamical (QED)
Brodin, Gert, Forsberg, Mats, Papadopoulos, Demetrios   +2 more
core   +1 more source

Nanotherapies for Atherosclerosis: Targeting, Catalysis, and Energy Transduction

Advanced Healthcare Materials, EarlyView.
Atherosclerosis management is hindered by poor drug targeting and plaque heterogeneity. Nanotechnology overcomes these barriers via three core strategies: (1) target‐engineered nanocarriers that achieve lesion‐specific precision via ligand modification, biomimetic camouflage, stimuli‐responsive release, and self‐propelling nanomotors; (2) catalytic ...
Yuqi Yang, Jingguo Qu, Tonghuan Xiao, Xinyang Han, Michael Tin‐Cheung Ying   +4 more
wiley   +1 more source