Results 31 to 40 of about 6,988 (165)

Quantification of Interfacial Charges in Multilayered Nanocapacitors by Operando Electron Holography

open access: yesAdvanced Materials, Volume 37, Issue 4, January 29, 2025.
Operando off‐axis electron holography is used to quantify the charges trapped at the dielectric/dielectric interfaces and metal/dielectric interfaces in HfO2‐ and Al2O3‐based nanocapacitors. The electrostatic potential maps, recorded with a sub‐nanometer spatial resolution while applying a bias, demonstrate that these interfaces present a high density ...
Leifeng Zhang   +6 more
wiley   +1 more source

Extended Depth-range Dual-wavelength Interferometry Based on Iterative Two-step Temporal Phase-unwrapping

open access: yes, 2017
Phase retrieval is one of the most challenging processes in many interferometry techniques. To promote the phase retrieval, Xu et. al [X. Xu, Y. Wang, Y. Xu, W. Jin. 2016] proposed a method based on dual-wavelength interferometry.
Lei, Zhenkun   +5 more
core   +1 more source

Dual‐Modal Sensing Skin Adaptive to Daylight, Darkness, and Ultraviolet Light for Simultaneous Full‐Field Deformation Measurement and Mechanoluminescence Responses

open access: yesAdvanced Science, Volume 12, Issue 2, January 13, 2025.
A dual‐modal sensing skin for deformation visualization is developed by integrating mechanoluminescence and digital image correlation techniques. It functions effectively under various lighting conditions, such as daylight, complete darkness, and UV irradiation.
Suman Timilsina   +4 more
wiley   +1 more source

Fish embryo multimodal imaging by laser Doppler digital holography

open access: yes, 2014
A laser Doppler imaging scheme combined to an upright microscope is proposed. Quantitative Doppler imaging in both velocity norm and direction, as well as amplitude contrast of either zebrafish flesh or vasculature is demonstrated.Comment: Signal ...
Atlan   +4 more
core   +1 more source

Fundamentals of Flexoelectricity, Materials and Emerging Opportunities Toward Strain‐Driven Nanocatalysts

open access: yesSmall, Volume 20, Issue 52, December 27, 2024.
This review examines flexoelectricity, a property where bending materials create electric charges. It explores how this effect can improve catalysts, especially at the nanoscale. The paper discusses measuring flexoelectricity and its advantages in catalysis, like reducing wasted energy.
Mieszko Kołodziej   +7 more
wiley   +1 more source

Advanced Optical Imaging Technologies for Microplastics Identification: Progress and Challenges

open access: yesAdvanced Photonics Research, Volume 5, Issue 11, November 2024.
Global concerns about microplastics (MP) and nanoplastics are rising, necessitating effective identification methods. This review explores advanced optical imaging systems for MP detection, highlighting. their nondestructive, noncontact advantages and rapid detection capabilities.
Yanmin Zhu   +6 more
wiley   +1 more source

Information‐Distilled Generative Label‐Free Morphological Profiling Encodes Cellular Heterogeneity

open access: yesAdvanced Science, Volume 11, Issue 29, August 7, 2024.
CytoMAD is a self‐supervised, multitask, generative deep learning model that extracts biologically significant cell morphology for integrated cytometric analysis while minimizing technical variability. This technique enhances diagnostic and screening workflows, including drug screening and tumor biopsy evaluation, by providing robust, label‐free ...
Michelle C. K. Lo   +7 more
wiley   +1 more source

Advances in Quantum Imaging with Machine Intelligence

open access: yesLaser &Photonics Reviews, Volume 18, Issue 8, August 2024.
Quantum imaging exemplifies the fascinating and counter‐intuitive nature of the quantum world, where non‐local correlations are exploited for the imaging of objects by remote and non‐interacting photons. The field has exploded of late, driven by advances in the fundamental understanding of these processes, but also by advances in technology.
Chané Moodley, Andrew Forbes
wiley   +1 more source

The Submillimeter Array

open access: yes, 2004
The Submillimeter Array (SMA), a collaborative project of the Smithsonian Astrophysical Observatory (SAO) and the Academia Sinica Institute of Astronomy and Astrophysics (ASIAA), has begun operation on Mauna Kea in Hawaii. A total of eight 6-m telescopes
Blundell R.   +5 more
core   +1 more source

Extracting fracture properties from digital image and volume correlation displacement data: A review

open access: yesStrain, Volume 60, Issue 4, August 2024.
Abstract The advent of digital image and volume correlation has attracted wide use in fracture mechanics. The full‐field nature of digital image and volume correlation allows for the integration of computational fracture mechanics to analyse cracked samples quantitatively. This review provides a comprehensive overview of current methods used to extract
Thorsten H. Becker
wiley   +1 more source

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