Advanced Robotics Research, EarlyView.This article introduces a soft wearable eyelid sling device incorporating a hydraulic soft artificial muscle (SAM) for achieving complete closure of an eyelid. The SAM is driven by a cam mechanism that provides a displacement profile closely matched with those of a healthy eyelid.
Patrick Pruscino +7 more
wiley +1 more source
An experimental Rayleigh laser guide star ground layer adaptive optics system for the William Herschel telescope [PDF]
, 2005 The design of an experimental ground layer adaptive optics (GLAO) system that uses a low altitude Rayleigh laser guide star as a wavefront reference source is presented.
Morris, T J, Morris, T. J.
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Research on Control Strategy of Hamiltonian Theory for Large Telescope Based on SAPMSM
IEEE AccessThe azimuth axis drive and control of large telescopes based on Segmented Arc Permanent Magnet Synchronous Motor (SAPMSM) is a current research hotspot, and issues such as unknown parameters and external interference are important factors affecting its ...
Xiaoli Song, Zhaojin Cao
doaj +1 more source
Solid Harmonic Wavelet Bispectrum for Image Analysis
Advanced Science, EarlyView.The Solid Harmonic Wavelet Bispectrum (SHWB), a rotation‐ and translation‐invariant descriptor that captures higher‐order (phase) correlations in signals, is introduced. Combining wavelet scattering, bispectral analysis, and group theory, SHWB achieves interpretable, data‐efficient representations and demonstrates competitive performance across texture,
Alex Brown +3 more
wiley +1 more source
Geometric Optics: Theory and Design of Astronomical Optical Systems Using Mathematica® [PDF]
, 2009 Geometric Optics Geometric Optics Theory and Design of Astronomical Optical Systems Using Mathematica® Series: Modeling and Simulation in Science, Engineering and Technology Romano, Antonio 2010, XII, 224 p.
Romano, Antonio
core +1 more source
Automated High-Precision Recognition of Solar Filaments Based on an Improved U2-Net
UniverseSolar filaments are a significant solar activity phenomenon, typically observed in full-disk solar observations in the H-alpha band. They are closely associated with the magnetic fields of solar active regions, solar flare eruptions, and coronal mass ...
Wendong Jiang, Zhengyang Li
doaj +1 more source
Light‐Imprinted Chirality in Nanomaterials: From Principles to Applications
Advanced Science, EarlyView.Light‐induced chirality represents a transformative paradigm for fabricating chiral nanostructures. This review provides a comprehensive framework encompassing light‐based strategies for imprinting and tuning chirality in nanomaterials, which guides researchers in harnessing light to create next‐generation functional materials.
Xinru Jin +3 more
wiley +1 more source
Profiling the turbulent atmosphere and novel correction techniques for imaging and photometry in astronomy [PDF]
, 2010 The turbulent atmosphere has two detrimental effects in astronomy. The phase aberration induced by the turbulence broaden the point spread function (PSF) and limits the resolution for imaging.
OSBORN, JAMES
core
Real-time real-sky dual-conjugate adaptive optics experiment [PDF]
, 2006 The current status of a real-time real-sky dual-conjugate adaptive optics experiment is presented. This experiment is a follow-up on a lab experiment at Lund Observatory that demonstrated dual-conjugate adaptive optics on a static atmosphere.
Per Knutsson +3 more
core +1 more source
Freeform Micro-Optical Elements—Recent Production Techniques, Opportunities and Challenges
MicroFreeform optics belong to the increasingly important elements in optical research and industry, which pose several challenges regarding design and highly precise manufacturing.
Tomasz Blachowicz +4 more
doaj +1 more source