Results 181 to 190 of about 12,991 (264)

Ultrafast bursts of tailored spatiotemporal vortex pulses. [PDF]

Light Sci Appl
Liu X, Liang C, Cao Q, Cai Y, Zhan Q.
europepmc   +1 more source

No News Is Good News Testing Modality and Redundancy in Immersive Augmented Reality

Journal of Computer Assisted Learning, Volume 42, Issue 1, February 2026.
ABSTRACT Background The modality and redundancy principles are well‐established within the cognitive theory of multimedia learning for their effectiveness in traditional media. However, previous studies applying these principles in virtual reality have shown contradictory results when immersive technologies are involved.
Vito Candido, Franz Lam, Dominik Petko, Alberto Cattaneo   +3 more
wiley   +1 more source

Improved acoustic holograms using simulated annealing. [PDF]

Biomicrofluidics
Weerasinghe G, Servais B, Heath D, Martin ST, Collins DJ.   +4 more
europepmc   +1 more source

PERFECT SHUFFLE INTERCONNECTIONS USING FRESNEL COMPUTER-GENERATED HOLOGRAMS IN A PLANAR-OPTIC CONFIGURATION [PDF]

, 1993
CAREY, CD, GODWIN, DP, MIDWINTER, JE, SELVIAH, DR, SONG, SH   +4 more
core  

Unveiling the Crystal Structure of Sanidine: A Polarized Raman and Ab Initio Simulation Exploration

Journal of Raman Spectroscopy, Volume 57, Issue 2, Page 227-238, February 2026.
This study combines polarized Raman spectroscopy and ab initio calculations to assign theoretical vibrational modes to observed spectra. Polarized Raman spectra were collected in six geometries (40–1200 cm−1). Theoretical predictions via DFT show good agreement with experiments, though some discrepancies point to influences like trace elements and ...
Michele Cassetta, Luca Bellucci, Sabrina Nazzareni, Francesco Vetere, Marco Giarola, Gino Mariotto   +5 more
wiley   +1 more source

Speckle Noise Reduction in Digital Holography by 3D Adaptive Filtering. [PDF]

Sensors (Basel)
Kerov AA, Kozlov AV, Cheremkhin PA, Shifrina AV, Starikov RS, Zlokazov EY, Petrova EK, Nebavskiy VA, Evtikhiev NN.   +8 more
europepmc   +1 more source

What is “accuracy”? Rethinking machine learning classifier performance metrics for highly imbalanced, high variance, zero‐inflated species count data

Limnology and Oceanography: Methods, Volume 24, Issue 2, February 2026.
Abstract Machine learning has opened the door for the automated sorting (classification) of images, holograms and acoustic backscatters of individual plankton, invertebrates, fish and marine mammals. However, this field is complicated by decades of paradoxically promising reports of classifier performance that do not correlate with real‐world uptake of
Bianca M. Owen, James R. Tweedley, Navid R. Moheimani, Chris S. Hallett, Jeffrey J. Cosgrove, Leopold P. O. Silberstein   +5 more
wiley   +1 more source

Monocular complex amplitude imaging via a polarization-multiplexed liquid-crystal-lens-informed Fourier neural network. [PDF]

Natl Sci Rev
Li L, Liao M, Zhang Y, Zeng Z, Wang S, Jia W, Zhang J, Zhang B, Dong Y, Zhang D, Zhang F, Yang Y.   +11 more
europepmc   +1 more source

Nearly 180° Field‐of‐View Metalens for Miniaturized Imaging Systems

Laser &Photonics Reviews, Volume 20, Issue 3, 5 February 2026.
A compact, single‐layer metalens is developed with an ultra‐wide field of view of ≈180 degrees. Utilizing a unique quadratic phase profile, this metalens overcomes traditional issues like axial and color dispersion. It operates across red, green, and blue wavelengths with non‐polarized light, promising enhanced imaging capabilities for integration into
Azhar Javed Satti, Eunji Lee, Isma Javed, Kyungtae Kim, Joohoon Kim, Muhammad Ashar Naveed, Muhammad Zubair, Qammer H. Abbasi, Muhammad Qasim Mehmood, Junsuk Rho   +9 more
wiley   +1 more source

On Data Selection and Regularization for Underdetermined Vibro-Acoustic Source Identification. [PDF]

Sensors (Basel)
Jiang L, Liu J, Jiang X, Pang Y.
europepmc   +1 more source