Results 81 to 90 of about 6,885 (296)

The Radon transform on hyperbolic space [PDF]

, 1991
The Radon transform that integrates a function in ${open H}^n$, the $n$-dimensional hyperbolic space, over totally geodesic submanifolds with codimension 1 and the dual Radon transform are investigated in this paper.
Kurusa Árpád
core   +1 more source

Biomimetic Hydrogel System Targeting S100A8 Centered Neuroimmune Crosstalk and Hypoxia Induced Neuronal Injury

Advanced Science, EarlyView.
A biomimetic hydrogel (HPC@Gel) was developed for traumatic brain injury repair by combining oxygen‐carrying hemoglobin nanoparticles and anti‐inflammatory carbon quantum dots within a brain‐like matrix. The system alleviated hypoxia, reduced harmful neuroimmune signaling, protected neurons, supported neural regeneration, and improved neurological and ...
Peng Liu, Xiaoyang Wu, Xiaoyin Liu, Yuyan Wang, Shichao Jiang, Kai Wu, Gaowei Li, Jie Ding, Chengheng Wu, Dan Wei, Jing Sun, Hongsong Fan, Liangxue Zhou   +12 more
wiley   +1 more source

Camera-based signature verification system through Discrete Radon Transform (DRT) and Principle Component Analysis (PCA)

, 2012
This paper presents a low cost camera-based signature verification system by using discrete Radon transform (DRT) and principle component analysis (PCA).
Tee, Wilkin, Hiew, Bee-Yan, Ooi, Shih-Yin   +2 more
core  

Chiral‐Induced Spin Selectivity Effect in a 1 nm Thin 1,1′‐Binaphthyl‐2,2′‐diyl Hydrogenphosphate Self‐Assembled Monolayer on Nickel Oxide

Advanced Science, EarlyView.
A self‐assembled monolayer (≈0.9 nm) of an axially chiral binaphthol phosphoric acid derivative on a ferromagnetic Ni/NiOx substrate shows chiral‐induced spin selectivity (CISS) magnetoresistance of 50%–80%. This thermally and chemically robust functional stack shows the way towards practical spintronic devices based on the CISS effect.
Abin Nas Nalakath, Christian Pfeiffer, Anu Gupta, Franziska Schölzel, Michael Zharnikov, Georgeta Salvan, Ron Naaman, Marc Tornow, Peer Kirsch   +8 more
wiley   +1 more source

Advances in BODIPY Derivatives for Antibacterial Phototherapy

Angewandte Chemie, EarlyView.
This review systematically summarizes the design strategies and structure‐activity relationships of BODIPY‐based antibacterial phototherapy, covering molecular engineering of small‐molecule photosensitizers and nanoplatforms, bacterial targeting and carrier design, and discussing the challenges and future perspectives associated with clinical ...
Li Lv, Heejeong Kim, Hongchen Zhai, Hanqi Ren, Silu Wang, Cong Sun, Yafu Wang, Hosoowi Lee, Juyoung Yoon, Hua Zhang   +9 more
wiley   +2 more sources

High-Accuracy Image Rotation and Scale Estimation Using Radon Transform and Sub-Pixel Shift Estimation

IEEE Access, 2019
Rotation and scale estimation of images are fundamental tasks in image registration. The conventional estimation method uses log-polar transform and 1D shift estimation to estimate rotation and scale regardless of the shift of images.
Takanori Fujisawa, Masaaki Ikehara
doaj   +1 more source

Machine Learning Interatomic Potentials for Energy Materials: Architectures, Training Strategies, and Applications

Advanced Energy Materials, EarlyView.
Machine learning interatomic potentials bridge quantum accuracy and computational efficiency for materials discovery. Architectures from Gaussian process regression to equivariant graph neural networks, training strategies including active learning and foundation models, and applications in solid‐state electrolytes, batteries, electrocatalysts ...
In Kee Park, Saeed Pourasad, Jinhong Mun, Arunkumar Chitteth Rajan, Tae Hyeon Park, Anand Rohit, Mohammad Zafari, Tan‐Lien Pham, Eunjae Jung, Bonseung Koo, Miran Ha, Gi Beom Sim, Hyun Gyu Park, Won Woong Choi, Kwanghyeon Jo, Soohaeng Yoo Willow, David ChangMo Yang, Chang Woo Myung, Geunsik Lee, Kwang S. Kim   +19 more
wiley   +1 more source

The X-ray Transform and its Application in Nano Crystallography [PDF]

Journal of Optoelectronical Nanostructures, 2017
In this article a review on the definition of the X- ray transform and some ofits applications in Nano crystallography is presented. We shall show that the X- raytransform is a special case of the Radon transform on homogeneous spaces when thetopological
tajedin derikvand, Rajab Ali Kamyabi-Gol, mohammad janfada   +2 more
doaj  

The Mathematical Foundations of 3D Compton Scatter Emission Imaging

International Journal of Biomedical Imaging, 2007
The mathematical principles of tomographic imaging using detected (unscattered) X- or gamma-rays are based on the two-dimensional Radon transform and many of its variants.
T. T. Truong, M. K. Nguyen, H. Zaidi
doaj   +1 more source

Inversion of the V-line transform for breast cancer detection with Compton camera

Biomath, 2017
In the recent past, Compton camera became an attractive alternative to the Anger camera in scintimammography, В known as nuclear medicine breast imaging or molecular breast imaging.
Rim Gouia-Zarrad
doaj   +1 more source