Results 41 to 50 of about 9,039,126 (121)

Bridging Optical and Mechanical Metamaterial/Metasurface Realms Toward Integrated Meta‐Systems

open access: yesAdvanced Optical Materials, Volume 14, Issue 14, 10 April 2026.
This perspective describes the rise of metamaterials in the field of materials science, specifically with optical and mechanical functionality. Fundamentals of both optical and mechanical metamaterials are discussed with a review of state‐of‐the‐art metamaterial science.
Justin Brackenridge   +2 more
wiley   +1 more source

Scan-based Near-field Acoustical Holography on Rocket Noise [PDF]

open access: yes, 2009
Scan-based near-field acoustical holography (NAH) shows promise in characterizing rocket noise source regions. A brief explanation of NAH is followed by a description of the virtual coherence technique, which allows one to perform scan-based NAH on ...
Gardner, Michael D., Gee, Kent
core   +1 more source

Electromagnetic Perception With Artificial Intelligence‐Empowered Programable Metasurface: From Data‐Driven Imaging to Semantic Sensing

open access: yesAdvanced Photonics Research, Volume 7, Issue 4, April 2026.
This review chronicles the evolution of intelligent electromagnetic (EM) perception systems empowered by metasurfaces and artificial intelligence. The progression from data‐driven imaging with implicit priors to semantic sensing with explicit priors is systematically reviewed.
Xingrui Zhou   +5 more
wiley   +1 more source

Scan-based sound visualisation methods using sound pressure and particle velocity

open access: yes, 2014
Sound visualisation techniques have played a key role in the development of acoustics throughout history. Progress in measurement apparatus and the techniques used to display sound and vibration phenomena has provided excellent tools for understanding ...
Fernandez Comesana, Daniel
core   +1 more source

High-resolution digital holography utilized by the subpixel sampling method [PDF]

open access: yes, 2011
A novel (to our knowledge) approach for resolution improvement in digital holography is presented in this paper. The proposed method is based on recording the incoming interference field on a complementary metal-oxide semiconductor (CMOS) camera with ...
Fritzsche, Marco   +9 more
core   +1 more source

The relationship between sound field reproduction and Near-Field Acoustical Holography

open access: yes, 2010
The problem of reproducing a desired sound field with an array of loudspeakers and the technique known as Near-Field Acoustical Holography share some fundamental theoretical aspects.
Fazi, Filippo M., Nelson, Philip A.
core   +1 more source

Hitchhiker's Guide to the Swampland: The Cosmologist's Handbook to the String‐Theoretical Swampland Programme

open access: yesFortschritte der Physik, Volume 74, Issue 4, April 2026.
Abstract String theory has strong implications for cosmology, implying the absence of a cosmological constant, ruling out single‐field slow‐roll inflation, and that black holes decay. The origins of these statements are elucidated within the string‐theoretical swampland programme.
Kay Lehnert
wiley   +1 more source

Holografia acústica utilizando modelos de fontes elementares [PDF]

open access: yes, 2001
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro TecnológicoEste trabalho apresenta um novo método para se obter um modelo linear de radiação de uma fonte sonora, considerando-a como um conjunto de fontes elementares cujos parâmetros são
Barbosa, Wiliam Alves
core  

3D Printing Strategies for Bioengineering Human Cornea

open access: yesAdvanced Healthcare Materials, Volume 15, Issue 10, 13 March 2026.
This review highlights recent progress in 3D bioprinting strategies for engineering human corneas. Key aspects include the replication of corneal transparency, curvature, and biomechanical properties, alongside innovations in recent advancements in 3D printing methods, which benefit in overcoming current challenges.
Yunong Yuan   +4 more
wiley   +1 more source

Ultrasound in Women's Health: Mechanisms, Applications, and Emerging Opportunities

open access: yesAdvanced Materials, Volume 38, Issue 14, 6 March 2026.
As healthcare moves toward decentralization, ultrasound technologies are evolving from strictly imaging tools in clinical settings into versatile diagnostic and therapeutic platforms, with growing roles addressing women's health needs. This review highlights how ultrasound's underlying physical mechanisms can be harnessed to reduce disparities in women'
Sarah B. Ornellas   +7 more
wiley   +1 more source

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