Results 181 to 190 of about 101,447 (298)

AI‐Based Autonomous Sailboat Navigation: A Review

open access: yesJournal of Field Robotics, EarlyView.
ABSTRACT This review explores the recent advancements in AI‐driven autonomous sailboat navigation, underscoring its pivotal role in ocean monitoring and real‐time maritime data collection. Drawing on an extensive range of primary and secondary sources, the study critically evaluates current challenges, innovative control algorithms, and path planning ...
Vishali Mankina   +6 more
wiley   +1 more source

Moving, computer-generated images via integral holography [PDF]

open access: bronze, 1977
Douglas Vickers   +3 more
openalex   +1 more source

Engineering stimuli‐responsive shape‐morphing through high‐resolution 4D printing

open access: yesResponsive Materials, EarlyView.
This review summarizes recent progress in high‐resolution 4D printing with smart materials and micro/nanoscale techniques. It covers actuation strategies, key applications, and future challenges for scalable, precise shape‐morphing systems. Abstract 4D printing extends conventional additive manufacturing (AM) by enabling dynamic shape‐morphing ...
Shuheng Li   +10 more
wiley   +1 more source

Single to multiple digital holograms for phase compensation and defect detection

open access: yesFrontiers in Photonics
Digital holography enables quantitative phase imaging based on interference. A digital hologram often encodes the phase information along with aberrations or deformations.
Zhenkai Chen   +5 more
doaj   +1 more source

Analysis of Giant‐Shell CdSe/CdS Quantum Dots via Analytical Ultracentrifugation Combined with Spectrally Resolved Photoluminescence

open access: yesSmall Methods, EarlyView.
Analytical ultracentrifugation (AUC) is a powerful tool for studying the size–property relationships of nanomaterials in their native environment. A methodology based on AUC with in‐line multiwavelength emission detection is developed, enabling the measurement of the size‐resolved emission spectra of giant‐shell CdSe/CdS quantum dots.
Lisa M. S. Stiegler   +5 more
wiley   +1 more source

Portable Filter-Free Lens-Free Incoherent Digital Holography System

open access: yesPhotonics
A portable incoherent digital holography system without a polarization filter or a refractive lens was developed. Phase-shifted self-interference incoherent holograms of light diffracted from an object were generated without attenuation due to a ...
Tatsuki Tahara
doaj   +1 more source

An Optically Transparent Transmissive Metasurface for User‐Defined Broadband Electromagnetic Illusion Generation

open access: yesSmall Structures, EarlyView.
This work presents a transparent transmissive metasurface (TTM), designed using a conditional generative adversarial network to achieve broadband electromagnetic illusions. The proposed TTM ensures high optical transparency while precisely manipulating electromagnetic waves, demonstrating effectiveness in practical applications such as camouflage ...
Peixuan Zhu   +7 more
wiley   +1 more source

Dynamic interactive bitwise meta-holography with ultra-high computational and display frame rates

open access: yesOpto-Electronic Advances
Interactive holography offers unmatched levels of immersion and user engagement in the field of future display. Despite of the substantial progress has been made in dynamic meta-holography, the realization of real-time, highly smooth interactive ...
Yuncheng Liu   +6 more
doaj   +1 more source

Phase Hologram by Acoustic Metasurfaces

open access: yesSmall Structures, EarlyView.
This work has achieved a breakthrough in holographic communication, realizing phase holographic imaging. The proposed phase holographic concept overcomes the limitations of traditional amplitude holographic energy attenuation. The design of its amplitude compensation method further addresses the key challenge of phase holographic imaging clarity ...
Xiao Guo   +11 more
wiley   +1 more source

HoToPy: a toolbox for X‐ray holo‐tomography in Python

open access: yesJournal of Synchrotron Radiation, EarlyView.
We present HoToPy, a toolbox for X‐ray holo‐tomography in Python. It offers state‐of‐the‐art phase retrieval methods for synchrotron and laboratory sources as well as tomographic reconstruction and alignment methods.We present a Python toolbox for holographic and tomographic X‐ray imaging. It comprises a collection of phase retrieval algorithms for the
Jens Lucht   +3 more
wiley   +1 more source

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