Results 131 to 140 of about 82,170 (356)

Keeping development on time: Insights into post‐transcriptional mechanisms driving oscillatory gene expression during vertebrate segmentation

WIREs RNA, Volume 14, Issue 1, January/February 2023., 2023
Genetic oscillators play crucial roles in development. The hairy/Enhancer of split gene family (Hes/her) undergo cell‐autonomous genetic oscillations to regulate the timing of vertebrate segmentation and neural cell proliferation and differentiation. mRNA stability and translation are tightly regulated to maintain oscillatory expression.
Monica C. Blatnik, Thomas L. Gallagher, Sharon L. Amacher   +2 more
wiley   +1 more source

Achromatic 3D Multi‐Color Orbital Angular Momentum Holography

Advanced Science, EarlyView.
This work presents an achromatic 3D multicolor orbital angular momentum (OAM) holography based on spatial multiplexing. By integrating wavelength‐specific lens functions onto monochromatic Fourier OAM‐dependent holograms and high‐resolution spatial discretization and interleaving via two‐photon lithography (TPL), the approach addresses axial chromatic ...
Hang Su, Baoli Li, Yike Bai, Yiqi Ye, Yibo Dong, Xinyuan Fang   +5 more
wiley   +1 more source

Optimization scheme of partial discharge location of external insulation based on 2‐D multiple signal classification algorithm

IET Science, Measurement &Technology, Volume 17, Issue 1, Page 11-26, January 2023., 2023
Abstract Partial discharge (PD) localization is critical to ensure the safe operation of power equipment. In this paper, an optimization scheme is developed for PD positioning of external insulation equipment. The optimization scheme is based on an eight‐element cross sensor array to receive the ultrasonic signal generated by the PD, and uses the ...
Shaotong Pei, Dewang Liu, Zijian Ye, Jiajun Yang, Yunpeng Liu   +4 more
wiley   +1 more source

Optical Bench Evaluation of the Latest Refractive Enhanced Depth of Focus Intraocular Lens

Clinical Ophthalmology
Ruediger Schmid,1 Andreas F Borkenstein2 1accuratis, Practice for Refractive Eye Surgery, Ulm, 89073, Germany; 2Borkenstein & Borkenstein, Private Practice at Privatklinik der Kreuzschwestern, Graz, 8010, AustriaCorrespondence: Ruediger Schmid, accuratis,
Schmid R, Borkenstein AF
doaj  

Phase determination of an amplitude modulated complex wavefront [PDF]

, 1978
Demetri Psaltis, David Casasent
openalex   +1 more source

High-accuracy wavefront sensing for x-ray free electron lasers

Optica, 2018
Systematic understanding and real-time feedback capability for x-ray free electron laser (FEL) accelerator and optical components are critical for scientific experiments and instrument performance.
Yanwei Liu, M. Seaberg, D. Zhu, J. Krzywiński, F. Seiboth, C. Hardin, D. Cocco, A. Aquila, B. Nagler, H. Lee, S. Boutet, Yiping Feng, Yuantao Ding, G. Marcus, A. Sakdinawat   +14 more
semanticscholar   +1 more source

Multi‐Dimensional Multiplexed Metasurface for Multifunctional Near‐Field Modulation by Physics‐Driven Intelligent Design

Advanced Science, EarlyView.
The expansive design space of advanced metasurfaces, particularly those with multiple degrees of freedom (MDOF), renders traditional design methods less effective. A physics‐driven intelligent design is proposed for MDOF metasurfaces, which integrates physical knowledge into neural networks, enhancing interpretability and computational efficiency. This
Jian Lin Su, Zi Xuan Cai, Yiqian Mao, Long Chen, Xin Yi Yu, Zhi Cai Yu, Qian Ma, Si Qi Huang, Jianan Zhang, Jian Wei You, Tie Jun Cui   +10 more
wiley   +1 more source

In situ chamber for studying battery failure using high‐speed synchrotron radiography

Journal of Synchrotron Radiation, Volume 30, Issue 1, Page 192-199, January 2023., 2023
The developed test chamber, capable of high‐speed X‐ray imaging, was designed to perform robust in situ abuse tests on batteries in various configurations while providing a complete overview of the failure event with additional complementary measurement methods.The investigation of lithium‐ion battery failures is a major challenge for personnel and ...
Jonas Pfaff, Matilda Fransson, Ludovic Broche, Mark Buckwell, Donal P. Finegan, Stefan Moser, Sebastian Schopferer, Siegfried Nau, Paul R. Shearing, Alexander Rack   +9 more
wiley   +1 more source

The clock and wavefront model revisited

Journal of Theoretical Biology, 2011
The currently accepted interpretation of the clock and wavefront model of somitogenesis is that a posteriorly moving molecular gradient sequentially slows the rate of clock oscillations, resulting in a spatial readout of temporal oscillations. However, while molecular components of the clocks and wavefronts have now been identified in the pre-somitic ...
Murray, Philip J., Maini, Philip K, Baker, Ruth E   +2 more
openaire   +7 more sources

Nanofocusing of X-ray free-electron laser using wavefront-corrected multilayer focusing mirrors

Scientific Reports, 2018
A method of fabricating multilayer focusing mirrors that can focus X-rays down to 10 nm or less was established in this study. The wavefront aberration induced by multilayer Kirkpatrick–Baez mirror optics was measured using a single grating ...
S. Matsuyama, T. Inoue, J. Yamada, Jong-Min Kim, H. Yumoto, Y. Inubushi, T. Osaka, I. Inoue, T. Koyama, K. Tono, H. Ohashi, M. Yabashi, T. Ishikawa, K. Yamauchi   +13 more
semanticscholar   +1 more source