Results 81 to 90 of about 1,089,333 (288)

Bistatic ISAR Sparse Imaging Method for High-Speed Moving Target Based on Dechirping Processing

International Journal of Antennas and Propagation, 2019
Bistatic inverse synthetic aperture radar (ISAR) can increase the probability of tracking the high-speed target and provide more angle information than monostatic ISAR.
Chuangzhan Zeng, Weigang Zhu, Xin Jia
doaj   +1 more source

Controlling Grain Growth in Powder Bed Fusion of Yttria‐Stabilized Zirconia Using Femtosecond Lasers: Challenges and Methodological Insights

Advanced Engineering Materials, EarlyView.
Binder‐free laser powder bed fusion of 8YSZ with a femtosecond laser is used to map process windows linking scan strategy, heat accumulation, and grain growth. Time‐resolved thermography and simulations reveal thermal regimes that enable continuous, vitrified, and fine‐grained 8YSZ surface layers without absorptive additives and demonstrate ...
Markus Kühn, Sarah Kaden, Andrea Barz, Daniel Störzner, Jens Bliedtner, Andrés Fabián Lasagni   +5 more
wiley   +1 more source

Line-Based Geometric Consensus Rectification and Calibration From Single Distorted Manhattan Image

IEEE Access, 2019
Recent advances in single image rectification and intrinsic calibration has been addressed by employing line information on the distorted image. The core issues of this technique are the separation of rectification and calibration procedures, and the ...
Mi Zhang, Xiangyun Hu, Jian Yao, Like Zhao, Jiancheng Li, Jianya Gong   +5 more
doaj   +1 more source

A Note on Geometric Calibration of Multiple Cameras and Projectors

2020 43rd International Convention on Information, Communication and Electronic Technology (MIPRO), 2020
Geometric calibration of cameras and projectors is an essential step that must be performed before any imaging system can be used. There are many well-known geometric calibration methods for calibrating systems comprised of multiple cameras, but simultaneous geometric calibration of multiple projectors and cameras has received less attention.
Tomislav Petkovic, Simone Gasparini, Tomislav Pribanic   +2 more
openaire   +3 more sources

A Novel Approach to Estimate the Transition Temperature via Dynamic Nanoindentation

Advanced Engineering Materials, EarlyView.
A new dynamic nanoindentation‐based method was developed that uses the stiffness ratio as an indicator of the elastic–plastic deformation contributions at different temperatures. The approach successfully identified transition temperatures in ferritic steel and distinguished them from continuously ductile austenitic steel.
Stefan Zeiler, Nikolaus Kostwein, Ronald Schnitzer, Christian Mitterer, Verena Maier‐Kiener   +4 more
wiley   +1 more source

Elastic–Plastic Modeling and Experimental Characterization of Granular Jamming Actuators

Advanced Engineering Materials, EarlyView.
Granular jamming enables rapid switching between soft and rigid mechanical states. Here, a reduced‐order elastic‐perfectly‐plastic beam framework captures pressure‐dependent loading, unloading, residual deformation, and hysteresis in jammed beams, while matching three‐point bending experiments across materials and geometries. The framework links design
Saheli Patel, Prashant K. Purohit, Jordan R. Raney   +2 more
wiley   +1 more source

Simulated tomosynthesis reconstruction images of various values of axis shift with and without geometric calibration.

, 2019
(a) Reconstructed image with the ideal situation and no geometric calibration. (b) axis shift = 1 mm; (c) axis shift = 3 mm; (d) axis shift = 5 mm; (e) axis shift = 10 mm. (f) Reconstructed image with the ideal situation and geometric calibration.
Ho-Hui Hsieh (6635765), Syuan-Ya Huang (6635762), Fan-Pin Tseng (6635771), Sheng-Pin Tseng (6635768), Yu-Ching Ni (6635759), Chia-Hao Chang (104496)   +5 more
core   +1 more source

Thermal Cycle–Microstructure–Property Relationships in Rail Steel Heat‐Affected Zone Simulated by Gleeble

Advanced Engineering Materials, EarlyView.
Microstructural evolution of premium rail steel during flash butt welding (FBW), comparing physically simulated heat‐affected zones with actual weld regions. Thermal cycles induce phase transformations and microstructural heterogeneity that influence weld quality and mechanical performance. These findings provide insights into optimizing FBW parameters
Emmanoelle Cintra da Cunha Araújo, João Marcos da Silva Nunes, Marcelly Cristiny Nunes de Carvalho, Alex Rojas, Cristie Luis Kugelmeier, Cristhian Ricardo Loayza Loayza, João Carlos Ferreira, Maria Veronica Goncalves Rodrigues, Rute Sayuri Kano, Isaac Araújo Furtado, Jacyara Dalylla da Silva Nunes, Jhonatan Peres de Sousa, Marcos Natan da Silva Lima, Eden Santos Silva, Gedeon Silva Reis, Samuel Filgueiras Rodrigues   +15 more
wiley   +1 more source

Representing the Process of Machine Tool Calibration in First-order Logic [PDF]

, 2011
Machine tool calibration requires a wide range of measurement techniques that can be carried out in many different sequences. Planning a machine tool calibration is typically performed by a subject expert with a great understanding of International ...
Longstaff, Andrew P., Myers, A., Parkinson, Simon, Allen, Gary, Fletcher, Simon, Crampton, Andrew, Fletcher, S., Myers, Alan, Crampton, A.; id_orcid, Allen, G.; id_orcid, Longstaff, A. P.; id_orcid, Parkinson, S.   +11 more
core   +3 more sources

Investigation of Resonance Characteristics of More Than 10 000 Metal‐Coated Silicon MEMS Cantilevers Using Machine Learning

Advanced Engineering Materials, EarlyView.
More than 10 000 metal‐coated silicon MEMS cantilevers are fabricated and characterized to build a large‐scale experimental dataset spanning multiple vibrational modes. Machine learning algorithms are benchmarked to predict resonance frequency and quality factor, with ensemble based models achieving accuracy approaching experimental uncertainty.
Sina Zare Pakzad, Saurabh Thorat, Andre Loch Gesing, Dominik Huber, Christopher Zellner, Patrick Egger, Georg Pfusterschmied, Ulrich Schmid, Michael Schneider   +8 more
wiley   +1 more source