Results 61 to 70 of about 1,798 (292)

Sobolev estimates for fractional and singular Radon transforms

, 1996
We prove various regularity results for Radon ...
Scipio Cuccagna, CUCCAGNA, SCIPIO
core   +1 more source

Engineered Carbon Dots from a Traditional Herb Pair Orchestrate Concurrent Antioxidant and AP‐1‐Mediated Inflammation to Attenuate Renal Ischemia‐Reperfusion Injury

Advanced Science, EarlyView.
This study integrates two complementary traditional Chinese medicine components as precursors to synthesize bioactive AM‐AS@CDs. Compared with single‐component CDs, these dual‐component CDs exhibit enhanced antioxidant capacity and superior renoprotective effects.
Bixiao Liu, Fuying Zhu, Zhuqing Wang, Jiawen Chen, Xiaomiao Cui, Congzhong Yang, Yao Peng, Dengyuan Feng, Li Lu, Hui Wei, Xiaozhi Zhao   +10 more
wiley   +1 more source

Application of “high-fidelity and high-resolution” processing technology in thin reservoir identification: A case study of the deep Permian Maokou Formation in Penglai area, central Sichuan [PDF]

Youqicang pingjia yu kaifa
The deep Permian Maokou Formation in the Penglai area, central Sichuan, is located in the Sichuan Basin. It is a sedimentary formation primarily composed of carbonate rocks, with dolomite being the main lithology.
PENG Haotian, HE Qinglin, CHEN Kang, ZENG Ming, HE Zongqiang, TU Zhihui, KONG Lingxia, QU Bozhang
doaj   +3 more sources

Radon transforms: Unitarization, Inversion and Wavefront sets

, 2020
The first contribution of this thesis is a new approach based on the theory of group representations in order to solve in a general an unified way the unitarization and inversion problems for generalized Radon transform associated to dual pairs (G/K,G/H)
BARTOLUCCI, FRANCESCA
core   +1 more source

Full‐Stack Architectures for Intelligent Brain‐Computer Interfaces

Advanced Science, EarlyView.
System‐level overview of brain–computer interfaces (BCIs), illustrating the integration of neural signal acquisition, wireless transmission, and adaptive decoding. Advanced electrode, tissue interfaces, energy‐efficient communication, and robust algorithms collectively enable stable signal quality, real‐time processing, and closed‐loop operation ...
Hee Kyu Lee, Hyun Bin Kim, Sang Uk Park, Janghoon Joo, Jinhong Min, Geumbee Lee, Joohoon Kang, Hyoyoung Jeong, Jae‐Young Yoo, Sang Min Won   +9 more
wiley   +1 more source

Oxygen Vacancy‐Enriched Platinum Single‐Atom Nanozyme Wrapped in Nanoislands: Unlocking Catalytic Activity and Reprogramming Redox Microenvironment for Osteonecrosis Repair

Advanced Science, EarlyView.
CeO2‐x/Pt single‐atom nano‐island is constructed via low‐temperature reduction, featuring abundant oxygen vacancies and an island–sea structure. It delivers outstanding multi‐enzyme‐mimetic activity and ROS‐scavenging efficiency. Density functional theory reveals optimized electronic structures and reaction pathways.
Yang Zhu, Zehui Lv, Xuejie Cai, Penghui Wei, Dengliang Wang, Zhao Wang, Ruoying Wang, Yingjie Wang, Xingdong Yang, Yixin Bian, Jiawei Xu, Xisheng Weng, Liangfeng Wei   +12 more
wiley   +1 more source

Exact image representation via a number‐theoretic Radon transform

IET Computer Vision, 2014
This study presents an integer‐only algorithm to exactly recover an image from its discrete projected views that can be computed with the same computational complexity as the fast Fourier transform (FFT). Most discrete transforms for image reconstruction
Shekhar Chandra, Imants Svalbe
doaj   +1 more source

Ship Velocity Estimation From Ship Wakes Detected Using Convolutional Neural Networks

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2019
Accurately tracking marine traffic considering security and commercial activities is still challenging despite its increasing global importance. Recently, space-borne synthetic aperture radar (SAR) is being considered to accurately monitor maritime ...
Ki-mook Kang, Duk-jin Kim
doaj   +1 more source

Sodium Ascorbate‐Accelerated Gelling Hydrogels With Rapid Self‐Mineralized Capacity for Chronic Wounds

Advanced Science, EarlyView.
An immunoregulatory hydrogel based on sodium ascorbate (SA)‐accelerated gelation and in situ self‐mineralization is prepared here. Such a hydrogel is constructed by mixing benzaldehyde‐ and cyanoacetate‐functionalized dextran with silver nitrate (AgNO3) and SA, enabling the ultrafast solidification and in situ self‐mineralization of silver ...
Xiaoya Ding, Wei Yang, Wenzhao Li, Guifang Xu, Yuanjin Zhao   +4 more
wiley   +1 more source

Estimating view parameters from random projections for Tomography using spherical MDS

BMC Medical Imaging, 2010
Background During the past decade, the computed tomography has been successfully applied to various fields especially in medicine. The estimation of view angles for projections is necessary in some special applications of tomography, for example, the ...
Murugappan Sundar, Fang Yi, Ramani Karthik   +2 more
doaj   +1 more source