Results 41 to 50 of about 4,513 (162)
Advanced Science, Volume 13, Issue 1, 5 January 2026.A biomimetic eyeball system (BES) based on a 3‐DOF miniature origami mechanism, which addresses the inherent issues of large size and weight in traditional electromechanical BESs is presented. Moreover, it maintains a level of visual functionality comparable to that of the human eye, including capabilities such as rapid scanning, target recognition ...
Junji Pu +6 more
wiley +1 more source
Laser autofocusing: A sliding mode approach
IECON 2010 - 36th Annual Conference on IEEE Industrial Electronics Society, 2010 Quality of the laser processing depends on many factors, such as overall configuration of the laser workstation, control methods used and quality of the laser beam. Although lasers used in material processing are typically high energy lasers, light beam still needs to be focused in order to achieve higher energy density and smaller final spot size ...
Golubovic, Edin +3 more
openaire +2 more sources
Focusing property of autofocusing Bessel beams
Optics Express, 2023 We introduce what we believe to be a new family of abruptly autofocusing waves named autofocusing Bessel beams (ABBs). Since the beams only strongly influence the area near the focus, it holds promise for medical laser treatment and optical tweezers. By the angular spectrum method, ABBs are proved to be a class solution for the Helmholtz equation.
Zhoulin Ding +4 more
openaire +2 more sources
Accessible digital ophthalmoscopy based on liquid-lens technology [PDF]
, 2015 Ophthalmoscopes have yet to capitalise on novel low-cost miniature optomechatronics, which could disrupt ophthalmic monitoring in rural areas. This paper demonstrates a new design integrating modern components for ophthalmoscopy.
Bergeles, C +8 more
core +1 more source
Interactions Enhance Ramp Reversal Memory in Locally Phase Separated Materials
Advanced Electronic Materials, Volume 11, Issue 21, December 17, 2025.Ramp‐reversal memory (RRM) can be encoded in metal–insulator transition materials by repeatedly driving them partway through the transition. We develop an interacting model with quenched disorder and defect motion that reproduces experimental hysteresis and memory peaking at the inflection point, and predicts enhancement of memory with interactions. We
Y. Sun +6 more
wiley +1 more source
Visual Servoing-Based approach for efficient autofocusing in Scanning Electron Microscope.
, 2013 International audienceFast and reliable autofocusing methods are essential for performing automatic nano-objects positioning tasks using a scanning electron microscope (SEM).
Dembélé, Sounkalo +3 more
core +2 more sources
ELECTROPHORESIS, Volume 46, Issue 24, Page 1692-1707, December 2025.ABSTRACT Three‐dimensional (3D) printing has revolutionized manufacturing by enabling the rapid fabrication of complex structures, yet conventional 3D techniques remain constrained by inherent limitations in resolution, speed, and multi‐material integration.
Guillermo Ramirez‐Alvarado +1 more
wiley +1 more source
Mathieu and Weber tightly autofocusing beams
Optics Express, 2023 We theoretically investigate the propagation dynamics of vectorial Mathieu and Weber tightly autofocusing beams, which are constructed based on nonparaxial Weber and Mathieu accelerating beams, respectively. They can automatically focus along the paraboloid and ellipsoid, and the focal fields represent the tightly focusing properties resembling that ...
Zhaojin Guo +4 more
openaire +2 more sources
International Journal of Laboratory Hematology, Volume 47, Issue 6, Page 1025-1034, December 2025.ABSTRACT Introduction The clinical diagnosis of hematological diseases depends on the differential count of nucleated cells on the bone marrow (BM) smears, and an artificial intelligence (AI)‐based system was applied to automatically classify BM nucleated cells in pediatric hematological disease samples in this study.
Xin He +6 more
wiley +1 more source
Wavefront-sensing-based autofocusing in microscopy [PDF]
Journal of Biomedical Optics, 2017 Massive image acquisition is required along the optical axis in the classical image-analysis-based autofocus method, which significantly decreases autofocus efficiency. A wavefront-sensing-based autofocus technique is proposed to increase the speed of autofocusing and obtain high localization accuracy.
Jing, Xu +9 more
openaire +2 more sources