Results 41 to 50 of about 211 (127)

A New Phase Unwrapping Method for Disconnected Regions Inspired by Continental Drift Theory

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Phase unwrapping (PU) is a crucial step in interferometric synthetic aperture radar, as it directly influences the accuracy of surface deformation monitoring and topographic mapping.
Pengfei Li, Zhiwei Li, Mi Jiang, Lei Guo, Minzheng Mu, Xin He, Jiachen Li, Yan Zhu, Yukun Yang   +8 more
doaj   +1 more source

Breaking barriers: Sunlight‐activated self‐healing polymers with unprecedented photoaging resistance

SusMat, Volume 4, Issue 6, December 2024.
Photochemical self‐healing of polymers is decoupled from the accompanying photoaging effect by introducing carbazolyl‐based dithiocarbamate bonds. The resulting crosslinked polyurethanes exhibit photoaging resistance significantly higher than the control containing commercial stabilizer, and excellent sunlight‐driven self‐healability toward surface and
Yan Mei Li, Ze Ping Zhang, Min Zhi Rong, Ming Qiu Zhang   +3 more
wiley   +1 more source

An Onboard Calibration Technique for Synthetic Aperture Radar Interferometry Using Multisource Data

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
The synthetic aperture radar interferometry (InSAR) is a powerful tool for retrieving the Earth’s geophysical parameters, such as terrain height, displacement and soil moisture.
Yan Yan, Qingjun Zhang, Vito Pascazio, Zhibin Wang, Taoli Yang   +4 more
doaj   +1 more source

MR Susceptibility Separation for Quantifying Lesion Paramagnetic and Diamagnetic Evolution in Relapsing–Remitting Multiple Sclerosis

Journal of Magnetic Resonance Imaging, Volume 60, Issue 5, Page 1867-1879, November 2024.
Background Multiple sclerosis (MS) lesion evolution may involve changes in diamagnetic myelin and paramagnetic iron. Conventional quantitative susceptibility mapping (QSM) can provide net susceptibility distribution, but not the discrete paramagnetic and diamagnetic components.
Ziyan Zhu, Nashwan Naji, Javad Hamidi Esfahani, Jeff Snyder, Peter Seres, Derek J. Emery, Michelle Noga, Gregg Blevins, Penelope Smyth, Alan H. Wilman   +9 more
wiley   +1 more source

Measurement of the Dispersion of χ(3)$\chi ^{(3)}$ of SiO2${\rm SiO}_2$ and SiN Across the THz and Far‐Infrared Frequency Bands

Laser &Photonics Reviews, Volume 18, Issue 11, November 2024.
Terahertz (THz) radiation sources using two‐color femtosecond plasmas in air are advancing coherent spectroscopy and strong‐field physics. A novel method combining air‐biased coherent detection (ABCD) and solid‐state biased detection (SSBCD) is introduced to measure third‐order nonlinearity in fused silica and silicon nitride.
Binbin Zhou, Mattias Rasmussen, Soheil Zibod, Siqi Yan, Narwan Kabir Noori, Oliver Nagy, Yunhong Ding, Simon Jappe Lange, Ksenia Dolgaleva, Robert W. Boyd, Peter Uhd Jepsen   +10 more
wiley   +1 more source

Integrating spatial modeling-assisted InSAR phase unwrapping with temporal analysis for advanced mine subsidence time series mapping

International Journal of Applied Earth Observations and Geoinformation
This study introduces an alternate spatial-temporal modeling-assisted InSAR time-series analysis method for mine subsidence mapping, aiming to address the large deformation gradients and decorrelation issues.
Alex Hay-Man Ng, Bangjie Wen, Yurong Ma, Li Guo, Yiwei Dai, Hua Wang, Linlin Ge, Zheyuan Du   +7 more
doaj   +1 more source

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

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

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

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