Results 51 to 60 of about 403 (117)

3dcon: tomogram denoising by deconvolution

Acta Crystallographica Section D, Volume 82, Issue 11, Page 1240-1250, November 2026.
An open‐source entropy‐regularized deconvolution workflow is presented for denoising tomographic reconstructions from cryo‐electron microscopy.Cryo‐electron tomography is an expanding technology for the study of macromolecules, viruses and cells.
Peter Kirchweger, Lev Melnikovsky, Shahar Seifer, Michael Elbaum   +3 more
wiley   +1 more source

Sparse‐Aperture Quasi‐Achromatic Spintronic Terahertz Emitter Enabled by Binary‐Phase Metasurface and Multi‐Spectral Intensity Optimization

Nanophotonics, Volume 15, Issue 19, 13 October 2026.
We propose a sparse‐aperture shared‐aperture design with multispectral intensity optimization, enabling a Pt/W binary‐phase metasurface directly integrated with a spintronic emitter. The device achieves quasi‐achromatic focusing across 1.0–1.5 THz, with intensity fluctuation below 33% and edge preservation above 0.68.
Wenkai Qiu, Yongshan Liu, Yunqing Jiang, Yong Xu, Sylvain Eimer, Xiaoqiang Zhang, Weisheng Zhao   +6 more
wiley   +1 more source

Gap‐Free Information Transfer in 4D‐STEM via Fusion of Complementary Scattering Channels

Advanced Science, Volume 13, Issue 56, 9 October 2026.
Fused Full‐Field STEM (FF‐STEM) is introduced as a 4D‐STEM imaging modality that combines direct ptychography with tilt‐corrected dark‐field reconstruction in a single acquisition. Fourier‐space fusion using Wiener‐type spectral weighting closes the low‐frequency contrast gap inherent to bright‐field methods, delivering gap‐free, dose‐efficient, near ...
Shengbo You, Georgios Varnavides, Sagar Khavnekar, Nikita Palatkin, Sihan Shao, Mingjian Wu, Daniel Stroppa, Darya Chernikova, Baixu Zhu, Ricardo Egoavil, Stefano Vespucci, Dileep Krishnan, Xingchen Ye, Florian K. M. Schur, Erdmann Spiecker, Philipp Pelz   +15 more
wiley   +1 more source

Dynamic Obstacle Avoidance of Metamorphic Microrobots Using Concentric Sector Navigator

Advanced Intelligent Systems, Volume 8, Issue 10, October 2026.
Metamorphic magnetic microrobots are navigated using a concentric sector navigator for dynamic obstacle avoidance in both microroller and swarm states. After microroller transport, citrate‐triggered dissolution releases nanoparticles that reassemble into a controllable swarm.
Zhaowen Su, Zerui Li, Lijun Fang, Hoyeon Kim, U Kei Cheang   +4 more
wiley   +1 more source

Laser‐Induced Graphene‐Based Resistive Leaf Wetness Sensors for Pesticide Spray Deposition

Global Challenges, Volume 10, Issue 10, October 2026.
A laser‐induced graphene leaf wetness sensor is fabricated by CO2 laser‐patterning interdigitated electrodes on flexible polyimide and adding silver‐paste contacts through a shadow mask. Calibration with multiple pesticide formulations and tap water shows decreasing resistance with increasing deposited volume, while spray tests demonstrate close ...
Nathan M. Jared, Kristi K. Bez, Roham G. Goudarzi, Griffin Ellis, Krishangee Bez, Emily A. Smith, Jonathan C. Claussen   +6 more
wiley   +1 more source

FPGA‐based scanner and SerialEM server for 4D‐STEM electron tomography

Acta Crystallographica Section D, Volume 82, Issue 10, Page 1203-1211, October 2026.
Software for a multipurpose hardware board enables flexible scanning with a ready acquisition and processing pipeline to implement 4D‐STEM electron tomography.Four‐dimensional scanning transmission electron microscopy (4D‐STEM) enables the acquisition of diffraction patterns at every probe position in a dense array.
Shahar Seifer, Michael Elbaum
wiley   +1 more source

Light‐Imprinted Chirality in Nanomaterials: From Principles to Applications

Advanced Science, Volume 13, Issue 49, 3 September 2026.
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, Emiliano Cortés, Alexander O. Govorov, Tao Ding   +3 more
wiley   +1 more source

Which is better for myopia control in children: orthokeratology or DIMS spectacle lenses? A meta-analysis

BMC Ophthalmology
Objective This study aims to systematically evaluate the effectiveness of Defocus Incorporated Multiple Segments (DIMS) spectacle lenses compared with orthokeratology (Ortho-K) in controlling myopia.
Desheng Song, Xiaoxue Chen, Fan Hong, Qing Zhou, Jiaqi Yao   +4 more
doaj   +1 more source

Effect of Myopic Defocus on the Retina and Choroid and Its Interaction with Defocus Regions, Diurnal Rhythm, and Accommodation

Ophthalmology Science
Purpose: To explore the effect of defocus region and amount, diurnal rhythm, and accommodation on myopic defocus-induced changes in the retina and choroid. Design: Four test lenses were used: single-vision soft contact lens (SVCL), bifocal spectacle lens
Yingying Huang, MD, Jiali Zhang, MD, Xue Li, PhD, Hao Chen, MD, OD, Jinhua Bao, PhD   +4 more
doaj   +1 more source

Slowing of myopia progression by spectacles with highly aspherical lenslets—A narrative review

Optometry and Vision Science, Volume 103, Issue 9, September 2026.
ABSTRACT Purpose A new generation of myopia control spectacles has emerged, including spectacle lenses with highly aspherical lenslet technology (HAL lenses). To date, HAL lenses have only been thoroughly evaluated in a single site randomized clinical trial in China and a recently published, multicenter, North American clinical trial.
Olga Prenat, Mark A. Bullimore
wiley   +1 more source