A method for the approximate merging of disk Wang-Ball (DWB) curves based on the modified snake optimizer (BEESO) is proposed in this paper to address the problem of difficulties in the merging of DWB curves. By extending the approximate merging problem for traditional curves to disk curves and viewing it as an optimization problem, an approximate merging model is established to minimize the merging error through an error formulation. Considering the complexity of the model built, a BEESO with better convergence accuracy and convergence speed is introduced, which combines the snake optimizer (SO) and three strategies including bi-directional search, evolutionary population dynamics, and elite opposition-based learning. The merging results and merging errors of numerical examples demonstrate that BEESO is effective in solving approximate merging models, and it provides a new method for the compression and transfer of product shape data in Computer-Aided Geometric Design.
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http://dx.doi.org/10.3390/biomimetics9030134 | DOI Listing |
Sensors (Basel)
November 2024
School of Mechanical and Automotive Engineering, Guangxi University of Science and Technology, Liuzhou 545006, China.
As mining technology advances, intelligent robots in open-pit mining require precise localization and digital maps. Nonetheless, significant pitch variations, uneven highways, and rocky surfaces with minimal texture present substantial challenges to the precision of feature extraction and positioning in traditional visual SLAM systems, owing to the intricate terrain features of open-pit mines. This study proposes an improved SLAM technique that integrates visual and Inertial Measurement Unit (IMU) data to address these challenges.
View Article and Find Full Text PDFBrief Bioinform
November 2024
School of Computer Science and Technology, Zhejiang Normal University, Jinhua 321000, China.
Phys Rev E
October 2024
Santa Fe Institute, 1399 Hyde Park Road, Santa Fe, New Mexico 87501, USA.
Adv Healthc Mater
January 2025
Department of Pharmaceutical Sciences, Div. Pharmacology, Utrecht University, Utrecht, 13102, The Netherlands.
A novel approach merging melt electrowriting (MEW) with matched die thermoforming to achieve scaffolds with micron-sized curvatures (200 - 800 µm versus 1000 µm of mandrel printing) for in vitro modeling of the kidney proximal tubule (PT) is proposed. Recent advances in this field emphasize the relevance of accurately replicating the intricate tissue microenvironment, particularly the curvature of the nephrons' tubular segments. While MEW offers promising capabilities for fabricating highly and porous precise 3D structures mimicking the PT, challenges persist in approximating the diameter of tubular scaffolds to match the actual PT.
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