Results 71 to 80 of about 1,758 (166)

Unwrapping phase contrast MRI by iterative graph cuts

Magnetic Resonance in Medicine, Volume 92, Issue 4, Page 1484-1495, October 2024.
Abstract Purpose To develop and evaluate a phase unwrapping method for cine phase contrast MRI based on graph cuts. Methods A proposed Iterative Graph Cuts method was evaluated in 10 cardiac patients with two‐dimensional flow quantification which was repeated at low venc settings to provoke wrapping.
Johan Berglund, Mio Liljeblad, Tomasz Baron   +2 more
wiley   +1 more source

Evolution of dike opening during the March 2011 Kamoamoa fissure eruption, Kīlauea Volcano, Hawai\u27i [PDF]

, 2013
The 5–9 March 2011 Kamoamoa fissure eruption along the east rift zone of Kīlauea Volcano, Hawai`i, followed months of pronounced inflation at Kīlauea summit.
Fielding, Eric, Hensley, Scott, Liu, Zhen, Lundgren, Paul, Miklius, Asta, Orr, Tim, Owen, Susan, Poland, Michael, Szeliga, Walter, Tanaka, Akiko, Yun, Sang-Ho   +10 more
core   +1 more source

Combined MR quantitative susceptibility mapping and multi‐shell diffusion in Parkinson's disease

Journal of Neuroimaging, Volume 34, Issue 5, Page 603-611, September/October 2024.
Abstract Background and Purpose Quantitative susceptibility mapping (QSM), neurite orientation dispersion and density imaging (NODDI), and the g‐ratio have separately shown differences between Parkinson's disease (PD) and healthy controls. The g‐ratio has, however, not been studied in PD in the substantia nigra (SN) and the putamen.
Oscar Andersson Forsman, Henrik Sjöström, Per Svenningsson, Tobias Granberg   +3 more
wiley   +1 more source

Retrieval of the atomic displacements in the crystal from the coherent x-ray diffraction pattern

, 2014
We investigate the retrieval of spatially resolved atomic displacements via the phases of the direct(real)-space image reconstructed from the strained crystal's coherent x-ray diffraction pattern. We demonstrate that limiting the spatial variation of the
Baumbach, T., Escoubas, S., Köhl, M., Minkevich, A. A., Thomas, O.   +4 more
core   +1 more source

Auxetic Biomedical Metamaterials for Orthopedic Surgery Applications: A Comprehensive Review

Orthopaedic Surgery, Volume 16, Issue 8, Page 1801-1815, August 2024.
Auxetic biomedical metamaterials for joint surgery, spinal surgery, trauma surgery, and sports medicine applications. Poisson's ratio in auxetic materials shifts from typically positive to negative, causing lateral expansion during axial tension. This scale‐independent characteristic, originating from tailored architectures, exhibits specific physical ...
Minghao Sun, Xin Hu, Leilei Tian, Xiao Yang, Li Min   +4 more
wiley   +1 more source

Comparison between LCOS projector and DLP projector in generating digital sinusoidal fringe patterns [PDF]

, 2013
Digital-light-processing (DLP) and liquid-crystal-on-silicon (LCOS) are two digital projection technologies which enjoy great popularity. This paper will demonstrate the performance of the two technologies in generating digital sinusoidal fringe patterns
Gibson, John, Li, Beiwen, Middendorf, Jill, Wang, Yajun, Zhang, Song   +4 more
core   +3 more sources

Fourier Decomposition-Based Phase Processing Technique: A Novel Approach for 1-D Phase Unwrapping

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
The performance of coherence analysis system (CAS) is critically dependent on phase accuracy. Most advanced phase unwrapping (PU) algorithms are designed for 2-D problem, but data from various interferometric systems are typically acquired as 1-D time ...
Chenghao Lu, Donglin Li, Hengyi Jia, Taoli Yang   +3 more
doaj   +1 more source

Topological Structure‐Modulated Collagen Carbon as Two‐in‐One Energy Storage Configuration toward Ultrahigh Power and Energy Density

ENERGY &ENVIRONMENTAL MATERIALS, Volume 7, Issue 2, March 2024.
Topological manipulation on collagen carbon microstructure is applicable by local microfibrous breakage/disassembly, giving rise to an N/O dual‐doped hierarchically porous carbon fiber with ultrahigh specific surface area and large pore volume to serve as both anode and cathode for synchronously achieving extremely high power and energy density ...
Li Yuan, Wenlong Cai, Yunhong Wei, Yiran Pu, Can Liu, Yun Zhang, Hao Wu   +6 more
wiley   +1 more source

First TerraSAR-X interferometry evaluation [PDF]

, 2007
The German radar satellite TerraSAR-X was launched in June 2007 [1] and is currently ending its commissioning phase. We anticipate quite different interferometric application scenarios compared to ERS- 1/2 and ASAR due to the X-band frequency, the ...
Adam, Nico, Eineder, Michael, Schättler, Birgit, Yague-Martinez, Nestor   +3 more
core  

Odor‐Active Compounds in Flexible Polyurethane Materials

Indoor Air, Volume 2024, Issue 1, 2024.
Flexible polyurethane (PU) materials find extensive use in upholstery, mattresses, and automobiles, yet the molecular background of their odor is still inadequately understood. To address this gap, we aimed at identifying major odorants in fifteen samples representing eight common types of flexible PU materials.
Charlotte Minig, Klaas Reglitz, Martin Steinhaus, Faming Wang   +3 more
wiley   +1 more source