Results 71 to 80 of about 1,108,586 (322)
Isotropic-medium three-dimensional cloaks for acoustic and electromagnetic waves
, 2012 We propose a generalization of the two-dimensional eikonal-limit cloak derived from a conformal transformation to three dimensions. The proposed cloak is a spherical shell composed of only isotropic media; it operates in the transmission mode and ...
Blair D. E. +5 more
core +1 more source
Advanced Functional Materials, EarlyView.Automat optical inspection (AOI) techniques in semiconductor fabrication can be leveraged in battery manufacturing, enabling scalable detection and analysis of electrode‐ and cell‐level imperfections through AI‐driven analytics and a digital‐twin framework.
Jianyu Li, Ertao Hu, Wei Wei, Feifei Shi
wiley +1 more source
التشكيل الهندسي للقاعات الموسيقية عبر العصور
Journal of Engineering, 2007 The main title of the study is “THE GEOMETRICAL FORM IN MUSICAL HALL THROUGH THE CLASSICAL AND MODERN AGES” We live in a world full of sounds performed by human and different creatures which surround us from every direction, it’s not strange to know ...
صبا جبار نعمة +1 more
doaj +1 more source
Mechanoregulatory Effects of Cell‐Scale Microwells on Epithelial Cell Phenotype
Advanced Functional Materials, EarlyView.In small polycaprolactone microwells, A549 epithelial cells span well edges, in contrast to cells growing on flat substrates. Focal adhesion sites (yellow) concentrate at topographic boundaries, while cytoskeletal tension (magenta stress fibers) is transmitted to the nucleus (blue), reducing nuclear sphericity.
Ruiwen He +10 more
wiley +1 more source
Research, 2019 We demonstrate a conformally mapped multifunctional acoustic metamaterial Mikaelian lens. Mikaelian lens is a gradient medium with a hyperbolic secant refractive index profile that can realize functions like beam self-focusing.
He Gao +6 more
doaj +1 more source
Известия высших учебных заведений. Поволжский регион:Технические науки, 2021 Background. This article describes a mathematical model of the acoustic path of the ultrasonic method for measuring distances to a heated vertical plate, developed in the geometrical-acoustics approximation.
A.V. Voronina, S.V. Pavlov
doaj +1 more source
Geometrical Acoustic Propagation with Frequency Dependence [PDF]
The Journal of the Acoustical Society of America, 1967 One characteristic of geometrical acoustic solutions is their frequency independence. Geometrical acoustics stems from the solution of the eikonal equation that is a form of the wave equation in the limit of infinite frequency. Since the effects of the medium and the boundary conditions on the acoustic fields are definitely frequency dependent, it is ...
L. P. Solomon, D. K. Y. Ai
openaire +1 more source
Advanced Functional Materials, EarlyView.Bioprosthetic aortic valves have revolutionized the treatment of aortic stenosis, but their durability is limited by structural valve deterioration (SVD). This review focuses on the pericardial tissue at the heart of these valves, examining how its mechanical properties and calcification drive fatigue and failure.
Gabriele Greco +7 more
wiley +1 more source
Advanced Functional Materials, EarlyView.Cuttlebone‐inspired metamaterials exploit a septum‐wall architecture to achieve excellent mechanical and functional properties. This review classifies existing designs into direct biomimetic, honeycomb‐type, and strut‐type architectures, summarizes governing design principles, and presents a decoupled design framework for interpreting multiphysical ...
Xinwei Li, Zhendong Li
wiley +1 more source
Comparison of Impulse Response Generation Methods for a Simple Shoebox-Shaped Room
AcousticsSimulated room impulse responses (RIRs) are important tools for studying architectural acoustics. Many methods exist to generate RIRs, each with unique properties that need to be considered when choosing an RIR synthesis technique.
Lloyd May +3 more
doaj +1 more source