Results 1 to 10 of about 12,088 (219)

Imaging of vertical surface-breaking cracks in concrete members using ultrasonic shear wave tomography

Scientific Reports, 2023
Surface-breaking cracks in concrete pose a significant threat to the durability of built structures. They create pathways for an accelerated moisture intrusion, and the transport of environmental and chemical agents such as chloride ions, which in turn ...
Sai Teja Kuchipudi, Sergey Pudovikov, Herbert Wiggenhauser, Debdutta Ghosh, Ute Rabe   +4 more
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Optical Phenomena in Mesoscale Dielectric Particles

Photonics, 2021
During the last decade, new unusual physical phenomena have been discovered in studying the optics of dielectric mesoscale particles of an arbitrary three-dimensional shape with the Mie size parameter near 10 (q~10).
Oleg V. Minin, Igor V. Minin
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Nondestructive Testing with 3MA—An Overview of Principles and Applications

Applied Sciences, 2019
More than three decades ago, at Fraunhofer IZFP, research activities that were related to the application of micromagnetic methods for nondestructive testing (NDT) of the microstructure and the properties of ferrous materials commenced.
Bernd Wolter, Yasmine Gabi, Christian Conrad   +2 more
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Age-related differences in gait symmetry obtained from kinematic synergies and muscle synergies of lower limbs during childhood

BioMedical Engineering OnLine, 2022
The age-related changes of gait symmetry in healthy children concerning individual joint and muscle activation data have previously been widely studied. Extending beyond individual joints or muscles, identifying age-related changes in the coordination of
Qiliang Xiong, Jinliang Wan, Shaofeng Jiang, Yuan Liu   +3 more
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D-S-Net: an efficient dual-stage strategy for high-precision segmentation of gross tumor volumes in lung cancer CT images

BMC Cancer
Background Accurate delineation of Gross Tumor Volume (GTV) in lung cancer is critical for effective radiotherapy and surgical planning. However, segmentation of GTV in high-resolution CT images remains challenging, particularly when tumors are small or ...
Chen Yi, Shaofeng Jiang, Liangli Xiong, Jun Yang, Huanhuan Shi, Qiliang Xiong, Bo Hu, Huaiwen Zhang   +7 more
doaj   +1 more source

Brain Extraction From Brain MRI Images Based on Wasserstein GAN and O-Net

IEEE Access, 2021
Brain extraction is an essential pre-processing step for neuroimaging analysis. It is difficult to achieve high-precision extraction from low-quality brain MRI images with artifacts and gray inconsistencies which often result in irregular hole regions in
Shaofeng Jiang, Lanting Guo, Guangbin Cheng, Xingyan Chen, Congxuan Zhang, Zhen Chen   +5 more
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RAU-Net for precise lung cancer GTV segmentation in radiation therapy planning

Scientific Reports
Lung cancer, as one of the most lethal malignancies worldwide, primarily relies on radiation therapy, with about 60%-70% of patients requiring this treatment.
Huai-wen Zhang, Bo Hu, Jun Yang, Liang-li Xiong, Huan-huan Shi, Qi-liang Xiong, Chen Yi, Shao-feng Jiang   +7 more
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Ultrasonic pulse-echo reflection and through-transmission methods for porosity measurement in carbon fiber-reinforced polymer composites

Journal of Aeronautical Materials, 2020
To detect void defects and determine porosity levels, carbon fiber-reinforced polymer composites were characterized through two kinds of ultrasonic methods, namely pulse-echo reflection and through-transmission.
SHI Junwei, LIU Songping, XUN Guoli
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Mesotronics: Some New, Unusual Optical Effects

Photonics, 2022
The recently emerged field of Mesotronics provides novel opportunities for subwavelength magnetic and electric field localization and giant enhancement by mesoscale dielectric particles and structures from low-index to high-index materials, supported by ...
Igor V. Minin, Oleg V. Minin
doaj   +1 more source

Simulation-Based Generation of Representative and Valid Training Data for Acoustic Resonance Testing

Applied Sciences, 2020
Analyzing eigenfrequencies of serial parts by acoustic resonance testing enables an efficient nondestructive assessment of component quality or structural state. Usually, each application is based on experimentally acquired training data, which represent
Matthias Heinrich, Ute Rabe, Bernd Valeske   +2 more
doaj   +1 more source