Results 111 to 120 of about 49,732,844 (278)

Symmetry‐Guided Multifunctional Acoustic System Based on Mechanically Actuated Sonic Crystals

open access: yesAdvanced Engineering Materials, EarlyView.
This study presents the design, simulation, and experimental validation of amultifunctional acoustic metamaterial based on rotationally engineered sonic crystals.By tuning cylinder orientations, controllable band gaps and six distinct functionalities—including switching, topological insulation, beam splitting, and logic operations—areachieved ...
Yuanyan Zhao   +2 more
wiley   +1 more source

Optimisation of Convolution-Based Image Lightness Processing

open access: yesJournal of Imaging
In the convolutional retinex approach to image lightness processing, an image is filtered by a centre/surround operator that is designed to mitigate the effects of shading (illumination gradients), which in turn compresses the dynamic range.
D. Andrew Rowlands, Graham D. Finlayson
doaj   +1 more source

Comparison of Triply Periodic Minimal Surface Energy Absorbers Under Uniaxial Compressive Loading

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates LCD 3D printed Triply Periodic Minimal Surface (TPMS) structures as mechanical energy absorbers. By comparing various base designs and layered combinations under uniaxial compression, it identifies that a Diamond‐Gyroid sandwich structure offers superior performance.
Sergej Grednev   +2 more
wiley   +1 more source

Observations on Shape-from-Shading in Humans

open access: yes, 2013
Humans are able to judge the shape of an undulating surface from variations in the amount of light reflected from it due to changes in its orientation/position relative to the light source: shape-from-shading.
Giacomo Mazzilli   +5 more
core   +1 more source

In-Situ microscopy study on self-healing process of vitrimers [PDF]

open access: yesBIO Web of Conferences
Krekeler Tobias   +4 more
doaj   +1 more source

Edge Constrained DSM Refinement Based on Shading From High-Resolution Multiview Satellite Images

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Surface refinement with shading information is a popular approach to recover fine details from the initial surfaces reconstructed from multiview stereo (MVS) methods. However, the existence of discontinuity areas challenges these methods in urban scenes.
Zhihua Hu, Kao Zhang, Yuxuan Liu
doaj   +1 more source

OntOMat: Toward Ontology‐Based Product and Process Design Engineering and Optimization Solutions Fueling Circular Value Chains

open access: yesAdvanced Engineering Materials, EarlyView.
The OntOMat ontology establishes a structured framework for polymer matrix fiber reinforced composite materials, integrating manufacturing processes, characterization methods, and multiscale design through the VDI/VDE 3682 formalized process description standard.
Nicolas Christ   +19 more
wiley   +1 more source

Microstructure Modification of Additively Manufactured Mo–9Si–8B by Annealing and Its Effects on High‐Temperature Mechanical Properties

open access: yesAdvanced Engineering Materials, EarlyView.
Postbuild annealing systematically modifies the phase fractions and morphology of EB‐PBF processed Mo–9Si–8B. Quantitative microstructure–property correlations reveal how controlled phase evolution enhances high‐temperature compressive strength and creep resistance.
Christopher Schmidt   +5 more
wiley   +1 more source

Enhanced Topography Models for Selected Lunar South Pole Regions with Shape-from-Shading

open access: yesThe Planetary Science Journal
High-resolution digital elevation models (DEMs) are an important resource both for lunar science and for human and robotic exploration. Photoclinometry, or Shape-from-Shading (SfS), is particularly well adapted to producing highly resolved DEMs even ...
Stefano Bertone   +5 more
doaj   +1 more source

Enhanced Ultrasound Transmission Through Aberration Layers Using Space‐Coiling Acoustic Metamaterials

open access: yesAdvanced Engineering Materials, EarlyView.
Enhancing ultrasound transmission through an aberration layer exhibiting mismatched impedance with the surrounding medium possesses great implications in imaging and treatment. In this study, we show that a space‐coiling acoustic metamaterial with judiciously tailored structural profile can help improve impedance matching.
Maral Ghanami   +4 more
wiley   +1 more source

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