Results 101 to 110 of about 1,354,722 (271)

High‐Resolution Diffusion‐Weighted Imaging With Self‐Gated Self‐Supervised Unrolled Reconstruction

Magnetic Resonance in Medicine, Volume 95, Issue 5, Page 2852-2862, May 2026.
ABSTRACT Purpose High‐resolution diffusion‐weighted imaging (DWI) is clinically demanding. The purpose of this work is to develop an efficient self‐supervised algorithm unrolling technique for submillimeter‐resolution DWI. Methods We developed submillimeter DWI acquisition utilizing multi‐band multi‐shot EPI with diffusion shift encoding.
Zhengguo Tan, Patrick A. Liebig, Annika Hofmann, Frederik B. Laun, Florian Knoll   +4 more
wiley   +1 more source

Spatial and Temporal Characteristics of Mesoscale Eddies in the North Atlantic Ocean Based on SWOT Mission

Remote Sensing
Mesoscale eddies play a crucial role as primary transporters of heat, salinity, and freshwater in oceanic systems. Utilizing the latest Surface Water and Ocean Topography (SWOT) dataset, this study employed the py-eddy-tracker (PET) algorithm to identify
Aiqun Cui, Zizhan Zhang, Haoming Yan, Baomin Han   +3 more
doaj   +1 more source

Enduring Lagrangian coherence of a Loop Current ring assessed using independent observations [PDF]

, 2018
Ocean flows are routinely inferred from low-resolution satellite altimetry measurements of sea surface height assuming a geostrophic balance. Recent nonlinear dynamical systems techniques have revealed that surface currents derived from altimetry can ...
Beron-Vera, F. J., Olascoaga, M. J., Pérez-Brunius, P., Triñanes, J., Wang, Y.   +4 more
core   +3 more sources

Spatial Image Gradient Estimation From the Diffusion MRI Profile

Magnetic Resonance in Medicine, Volume 95, Issue 5, Page 2980-2991, May 2026.
ABSTRACT Purpose In the course of diffusion, water molecules encounter varying values for the relaxation‐time properties of the underlying tissue. This factor, which has rarely been accounted for in diffusion MRI (dMRI), is modeled in this work, allowing for the estimation of the gradient of relaxation‐time properties from the dMRI signal. Methods With
Iman Aganj, Thorsten Feiweier, John E. Kirsch, Bruce R. Fischl, Andre J. van der Kouwe   +4 more
wiley   +1 more source

Impact of greenhouse warming on mesoscale eddy characteristics in high-resolution climate simulations

Environmental Research Letters
Mesoscale eddies are prevalent throughout the global ocean and have significant implications on the exchange of heat, salt, volume, and biogeochemical properties.
Junghee Yun, Kyung-Ja Ha, Sun-Seon Lee
doaj   +1 more source

Sediment dynamics driven by contour currents and mesoscale eddies along continental slope: A case study of the northern South China Sea

Marine Geology, 2019
Based upon 3-D seismic reflection data, published drill core studies, oceanographic observations and numerical modelling, this study identifies a small scale contourite depositional system that is locally confined by canyons, slope failures, erosional ...
Hui Chen, Wenyan Zhang, Xinong Xie, Jianye Ren   +3 more
semanticscholar   +1 more source

Mesoscale subduction at the Almeria-Oran front. Part 1: ageostrophic flow [PDF]

, 2001
This paper presents a detailed diagnostic analysis of hydrographic and current meter data from three, rapidly repeated, fine-scale surveys of the Almeria-Oran front.
Allen, J.T., Ruiz, S., Smeed, D.A., Tintore, J.   +3 more
core   +2 more sources

Next Generation 7 Tesla Arterial Spin Labeling With Rotated Spiral Acquisition Enables Mesoscale Resolution in 3D Brain Perfusion and Functional MRI

Magnetic Resonance in Medicine, Volume 95, Issue 5, Page 2702-2717, May 2026.
ABSTRACT Purpose To achieve high resolution (≤ 1 mm isotropic) whole‐brain perfusion imaging at 7 T with next generation ASL pulse sequence, reconstruction algorithm, and MRI hardware. Methods We capitalized on three major innovations: (1) FLASH‐based pseudo‐Continuous ASL (pCASL) sequence with rotated golden‐angle stack‐of‐spirals (rGA‐SoS) sampling; (
Chenyang Zhao, Fanhua Guo, Zidong Yang, Xingfeng Shao, Samantha J. Ma, Alexander J. S. Beckett, An T. Vu, David A. Feinberg, Danny J. J. Wang   +8 more
wiley   +1 more source

Identify habitat distribution within the mesoscale eddies for jumbo flying squid off Chilean waters

Frontiers in Marine Science
Mesoscale eddies exert profound influences on marine environments, thereby regulating habitat quality and the distribution of marine organisms. The waters off Chile are a region of intense mesoscale eddy activity and represent a major habitat for the ...
Xiaoci Wu, Xiaoci Wu, Pengchao Jin, Pengchao Jin, Wei Yu, Wei Yu, Wei Yu, Wei Yu, Wei Yu   +8 more
doaj   +1 more source

Submesoscale and Mesoscale Eddies in the Florida Straits: Observations from Satellite Ocean Color Measurements

Geophysical Research Letters, 2019
Despite their well‐recognized importance in driving ocean physics and biology, submesoscale (diameter < Rossby radius of deformation) eddies have been extremely difficult to observe due to technical difficulties from both field and remote platforms. Here
Yingjun Zhang, Chuanmin Hu, Yonggang Liu, R. Weisberg, V. Kourafalou   +4 more
semanticscholar   +1 more source