Results 171 to 180 of about 22,663 (297)

Fast GPU-Based Approach to Branchless Distance-Driven Projection and Back-Projection in Cone Beam CT

, 2015
Modern CT image reconstruction algorithms rely on projection and back-projection operations to refine an image estimate in iterative image reconstruction. A widely-used state-of-the-art technique is distance-driven projection and back-projection.
Schlifske, Daniel Edward
core  

Evolving SPECT-CT technology. [PDF]

Br J Radiol
Willowson KP, Bailey DL.
europepmc   +1 more source

Atomic Defects in Layered Transition Metal Dichalcogenides for Sustainable Energy Storage and the Intelligent Trends in Data Analytics

Advanced Science, EarlyView.
This review comprehensively summarizes the atomic defects in TMDs for their applications in sustainable energy storage devices, along with the latest progress in ML methodologies for high‐throughput TEM data analysis, offering insights on how ML‐empowered microscopy facilitates bridging structure–property correlation and inspires knowledge for precise ...
Zheng Luo, Ying Yang, Zizhen Fu, Fengqi Liu, Susu Fang, Kele Xu, Shanshan Wang   +6 more
wiley   +1 more source

Reconstruction algorithms and arm positioning effects on abdominal CT image quality and radiation dose: a phantom study. [PDF]

Eur Radiol Exp
Mun HS, Lim S, Kang S.
europepmc   +1 more source

Mapping the “Supply–Demand–Flow” of Ecosystem Services for Ecosystem Management in China

Advanced Science, EarlyView.
This study develops a “supply–demand–flow” framework clarifies how ecosystem services move between regions by distinguishing potential and actual supply and demand. Using integrated biophysical–socioeconomic modeling, nine services in China were mapped.
Yikun Zhang, Yadong Yang, Yongsheng Wang, Guirui Yu   +3 more
wiley   +1 more source

Iterative Thresholding and Projection Algorithms and Model-Based Deep Neural Networks for Sparse LQR Control Design

In this paper, we consider an LQR design problem for distributed control systems. For large-scale distributed systems, finding a solution might be computationally demanding due to communications among agents.
Cho, Myung
core  

Chaotic Iterative Algorithms for Image Reconstruction from Incomplete Projection Data

, 2008
The problem of computer tomography is considered from incomplete projection data with chaotic algorithms for some particular systems of reconstruction. The numerical reconstruction algorithms and numerical simulation results are presented for a number of
Gubareni, N., Pleszczynski, M.
core  

An accelerated framework for high-resolution X-ray holographic reconstruction. [PDF]

J Synchrotron Radiat
Hu J, Ji B, Hu Y, Wang L, Chang G, Shi J.   +5 more
europepmc   +1 more source

The Development and Pilot Clinical Study of CD147 Targeted Antagonistic Peptide Probe for Tumor Imaging

Advanced Science, EarlyView.
This study establishes [68Ga]Ga‐DOTA‐AP9 as a first‐in‐human CD147‐targeted PET tracer with favorable safety and specific tumor uptake. Tracer accumulation correlates with CD147 expression in patients, enabling noninvasive quantification of CD147‐positive malignancies.
Xiaokun Ma, Rui Guo, Dongfeng Niu, Yufei Song, Zhenyao Zhang, Xiangxi Meng, Lili Mao, Haifeng Huang, Hua Zhu, Zhi Yang, Teli Liu   +10 more
wiley   +1 more source

Parallel iterative algorithms for large sparse linear systems

, 2009
Numerical handling of partial differential equations (PDEs) plays a crucial role in modeling physical processes. It involves discretization of these PDEs using for example finite difference or finite element methods and often requires the solution of ...
Naumov, Maxim
core