Results 91 to 100 of about 38,857 (309)
Advanced Science, EarlyView.A metasurface‐enabled ultrasonic platform achieves precise multi‐focal control through biological barriers, real‐time physiology‐driven modulation, and simultaneous wireless power and data transmission. By unifying wavefront engineering, closed‐loop feedback, and acoustic communication, this work establishes key enabling technologies toward scalable ...
Chuanxin Zhang +3 more
wiley +1 more source
A mathematical investigation of a clock and wavefront model for somitogenesis
, 2006 Somites are transient blocks of cells that form sequentially along the antero-posterior axis of vertebrate embryos. They give rise to the vertebrae, ribs and other associated features of the trunk.
Maini, P. K. +6 more
core +1 more source
Wavefront-Like LAM Method: A Case Report of Residual Potential Identification Using Local Voltage Derived From Late Annotation Mapping. [PDF]
J ArrhythmThe Wavefront‐like LAM method preserves wavefront‐based timing consistency while enabling quantitative local voltage evaluation. This method improves differentiation between low‐voltage and no‐voltage regions and suggests that residual potentials appearing isolated on conventional voltage mapping can be identified.
Morioku T +4 more
europepmc +2 more sources
Metasurface‐Enabled Active‐Like Passive Radar
Advanced Science, EarlyView.A programmable space‐time‐coding metasurface embeds distinct spatiotemporal tags into ambient wireless signals, allowing passive radar to operate in an active‐like manner. By enabling code‐correlated reconstruction under interference, the approach supports robust real‐time UAV tracking in complex environments and points to intelligent, low‐power ...
Mingyi Li +7 more
wiley +1 more source
TRIM: Simultaneous Thermometry, Ranging, and Imaging via a Monolithic Metalens
Advanced Science, EarlyView.ABSTRACT While metasurfaces offer a pathway beyond the discrete architectures of conventional LWIR systems, physically fusing high‐precision thermometry and passive ranging onto a single metalens remains a formidable challenge. Here, we demonstrate a monolithic, dual‐focus metalens capable of simultaneous multidimensional sensing.
Man Yuan +10 more
wiley +1 more source
A clock and wavefront mechanism for somite formation
, 2006 Somitogenesis, the sequential formation of a periodic pattern along the antero-posterior axis of vertebrate embryos, is one of the most obvious examples of the segmental patterning processes that take place during embryogenesis and also one of the major ...
Maini, P. K. +8 more
core +1 more source
Clinical Ophthalmology, 2020 Hesham Mohamed Gharieb,1,2 Hisham Samy Shalaby,3 Ihab Saad Othman4,5 1Faculty of Medicine, Ain Shams University, Cairo, Egypt; 2Research and Development, Eye World Hospital, Giza, Egypt; 3Department of Ophthalmology, Faculty of Medicine, Ain Shams ...
Gharieb HM, Shalaby HS, Othman IS
doaj
Extreme‐Thickness Meta‐Membrane for Controlling Terahertz Vectorial Beams
Advanced Science, EarlyView.We propose ultra‐thin (λ/30) transmissive terahertz metasurfaces combining near‐field resonant and detour phases in coupled‐slit meta‐atoms, enabling continuous phase and polarization control beyond conventional designs. Based on leaky‐mode theory, scalar and vectorial terahertz Bessel beams at 0.39 THz are experimentally demonstrated, with ...
Yufei Song +7 more
wiley +1 more source
Light sheet adaptive optics microscope for 3D live imaging [PDF]
, 2013 Optical microscopy is still the main research tool for many biological studies. Indeed with the advent of genetic manipulation and specifically, the use of fluorescent protein expressing in animals and plants it has actually seen a renaissance in the ...
BOURGENOT, CYRIL,JULES,TUGDUAL
core
Wavefront optimized nonlinear microscopy of ex vivo human retinas
, 2010 A multiphoton microscope incorporating a HartmannShack HS wavefront sensor to control the ultrafast laser beam’s wavefront aberrations has been developed.
Artal Soriano, Pablo +2 more
core +1 more source