Results 121 to 130 of about 1,143,358 (248)

Optimization of the Multi-element Synthetic Transmit Aperture Method for Medical Ultrasound Imaging Applications

Archives of Acoustics, 2013
The paper presents the optimization problem for the multi-element synthetic transmit aperture method (MSTA) in ultrasound imaging applications. The optimal choice of the transmit aperture size is made as a trade-off between the lateral resolution ...
Yuriy TASINKEVYCH, Ihor TROTS, Andrzej NOWICKI, Marcin LEWANDOWSKI   +3 more
doaj  

Deep Learning for Synthetic Aperture Radar Remote Sensing

Deep Learning for Synthetic Aperture Radar Remote Sensing delves into the transformative synergy between synthetic aperture radar (SAR) and cutting-edge machine learning techniques.
Schmitt, Michael, Hänsch, Ronny
core   +1 more source

Snapshot Spatiotemporal‐Spectral Imaging Enabled by Joint Photonic Encoding

Advanced Science, EarlyView.
Spectra4D enables snapshot spatiotemporal‐spectral imaging by combining high‐speed DMD temporal modulation with CMOS‐integrated Fabry‐Pérot spectral encoding. From a single 2D measurement, a dual‐mask‐guided reconstruction network recovers multiple time‐resolved hyperspectral frames, enabling high‐fidelity observation of rapidly evolving spatial ...
Chunyu Chen, Junren Wen, Hao Sha, Chenying Yang, Ziyang Chen, Xiaochen Feng, Taiqin Chen, Wenzhen Zou, Xiangyu Chen, Xiangyang Ji, Guojun Liu, Yongbing Zhang   +11 more
wiley   +1 more source

Metasurface‐Based Multidimensional Light‐Field Manipulation: From Technologies to Applications

Advanced Science, EarlyView.
Multidimensional metasurfaces enable versatile manipulation of multiple optical degrees of freedom, including phase, amplitude, polarization, wavelength, and orbital angular momentum. This review summarizes their fundamental mechanisms, emerging strategies for multidimensional light‐field control, and key applications in optical computing, imaging ...
Heliang Yin, Shuo Sun, Jiahao Zhang, Jianuo Hu, Yubin Qiao, Liang Chen, Jin Li   +6 more
wiley   +1 more source

Adaptive Active Illumination Via Translationally and Axially Tunable Cascaded Metasurfaces

Advanced Science, EarlyView.
Active three‐dimensional sensing faces a fundamental trade‐off between seeing farther and covering more of the scene. Translationally and axially tunable cascaded metasurfaces overcome this limitation by continuously adapting beam direction and illumination coverage.
Chi Zhang, Jianing Yang, Lingyun Zhang, Jingyu Bao, Bingbai Li, Qingsong Feng, Rui You, Xiaoli Jing, Fei Xing, Xiaoguang Zhao, Zheng You   +10 more
wiley   +1 more source

Rational Surface Engineering Reduces Advanced Glycation End‐Product Adsorption and Improves Implant Integration

Advanced Science, EarlyView.
Targeted surface chemical modification prevents the accumulation of advanced glycation end products (AGEs) on implant surfaces, attenuates inflammation and fibrosis, effectively restores angiogenic activity, and improves osseointegration under diabetic conditions.
Thien Ngoc Le, Wenhao Chen, Tengxiao Huang, Tien Thanh Nguyen, Markos Negash Alemie, Xuan Duy Do, Giles Best, Jordan Li, Jitraporn Vongsvivut, Vi‐Khanh Truong, Weiwei Li, Yunpeng Zhao, Richard Bright, Krasimir Vasilev   +13 more
wiley   +1 more source

PLIS: an airborne polarimetric L-band interferometric synthetic aperture radar

, 2011
PLIS is an airborne synthetic aperture radar designed to be used in conjunction with a passive radiometer to collect microwave data at L-band for the remote sensing of soil moisture.
Panciera, R., Bates, B., McGrath, A., Stacy, N., Yang, R., Gray, D., Yardley, H., Walker, J., Hacker, J.   +8 more
core  

Targeting Mitochondrial Redox Signaling Promotes Neuroregeneration and Functional Recovery in a Multiple Sclerosis Model

Advanced Science, EarlyView.
Modulation of mitochondrial redox signaling by furapyrrodole activates CYB5R3 and suppresses Notch signaling, unlocking the regenerative potential of endogenous neural progenitor cells. This approach promotes neurogenesis, oligodendrogenesis, and remyelination, thereby improving neuronal function in a mouse model of multiple sclerosis and identifying ...
Yuki Narushima, Joshua Saylor, Shun Saito, Jinyan Zhou, Haruka Kawano, Shehata Anwar, Haruki Oba, Rachel Huezo, Miyu Okano, Haruki Matsuda, Makoto Kawatani, Kaori Honda, Hiroyuki Osada, Yuta Kikuchi, Masahito Ohue, Masami Ishibashi, Takayoshi Arai, Makoto Inoue, Midori A. Arai   +18 more
wiley   +1 more source

Conformal Reconfigurable Intelligent Surfaces: A Cylindrical Geometry Perspective

Advanced Electronic Materials, EarlyView.
Cylindrical reconfigurable intelligent surfaces are explored for low‐complexity beam steering using one‐bit meta‐atoms. A multi‐level modeling approach, including optimization‐based synthesis, demonstrates that even minimal hardware can support directive scattering.
Filippo Pepe, Ivan Iudice, Giuseppe Castaldi, Marco Di Renzo, Vincenzo Galdi   +4 more
wiley   +1 more source

Recent Advances in Programmable Metasurfaces and Meta‐Devices

Advanced Electronic Materials, EarlyView.
Programmable metasurfaces enable various novel functionalities by dynamically tuning electromagnetic wavefronts. This article provides a comprehensive review of recent advances in microwave and terahertz programmable metasurfaces, covering electrical, thermal, optical, and mechanical control mechanisms.
Linda Shao, Chong He, Nan Wang, Liming Si, Weiren Zhu   +4 more
wiley   +1 more source