Results 101 to 110 of about 14,234 (266)

Symphotic Design of an Edge Detector for Autonomous Navigation

open access: yesIEEE Access, 2019
Autonomous navigation systems rely on the collection and processing of large datasets with advanced and memory-intensive algorithms. The requirements in terms of computing power and energy consumption can be significant.
Roberto Zecca   +2 more
doaj   +1 more source

Nonlinear metamaterials for holography

open access: yesNature Communications, 2016
AbstractA hologram is an optical element storing phase and possibly amplitude information enabling the reconstruction of a three-dimensional image of an object by illumination and scattering of a coherent beam of light, and the image is generated at the same wavelength as the input laser beam.
Euclides Almeida   +2 more
openaire   +4 more sources

Bioinspired Soft‐Skeleton Robotics With Cooperative Shape Transformation and Stiffness Adaptation

open access: yesAdvanced Robotics Research, EarlyView.
A bioinspired soft‐skeleton robot that integrates variable‐stiffness chain skeletons into a soft textile skin is developed. The chain skeletons are highly flexible initially but can stiffen upon pneumatic actuation, enabling large deformation and enhanced load‐bearing capacity.
Mengyuan Niu   +5 more
wiley   +1 more source

A rapid prototyped atmospheric non-thermal plasma-activated aerosol device and anti-bacterial characterisation

open access: yesFrontiers in Chemistry
Non-plasma technologies are being extensively investigated for their potential to mitigate microbial growth through the production of various reactive species.
Jefferson de Oliveira Mallia   +6 more
doaj   +1 more source

Invited Article: All-optical multichannel logic based on coherent perfect absorption in a plasmonic metamaterial

open access: yesAPL Photonics, 2016
The exponential growth of telecommunications bandwidth will require next generation optical networks, where multiple spatial information channels will be transmitted in parallel.
Maria Papaioannou   +4 more
doaj   +1 more source

Photonic Time Crystals and Time‐Varying Electromagnetic Metamatter: A New Direction for Ultrafast Tunable Photonic and Microwave Materials and Devices

open access: yesAdvanced Science, EarlyView.
Photonic time crystals (PTCs) are systems in which electromagnetic parameters are modulated periodically in time, producing momentum bandgaps via temporal scattering rather than spatial Bragg processes. This review examines the theoretical frameworks, modeling, and computational tools for time‐varying media, and summarizes experimental demonstrations ...
Ranjan Kumar Patel   +3 more
wiley   +1 more source

Design and Analysis of a Reconfigurable Holographic Metasurface Aperture for Dynamic Focusing in the Fresnel Zone

open access: yesIEEE Access, 2017
We present numerical simulations of the near-field focusing capabilities of a dynamically reconfigurable holographic metasurface aperture. The aperture consists of a parallel-plate waveguide in which the upper plate is patterned with a number of ...
Okan Yurduseven   +3 more
doaj   +1 more source

Light‐Imprinted Chirality in Nanomaterials: From Principles to Applications

open access: yesAdvanced Science, EarlyView.
Light‐induced chirality represents a transformative paradigm for fabricating chiral nanostructures. This review provides a comprehensive framework encompassing light‐based strategies for imprinting and tuning chirality in nanomaterials, which guides researchers in harnessing light to create next‐generation functional materials.
Xinru Jin   +3 more
wiley   +1 more source

Design and Analysis of a W-Band Metasurface-Based Computational Imaging System

open access: yesIEEE Access, 2017
We design and numerically analyze a coherent computational imaging system that utilizes a sparse detector array of planar, frequency-diverse, metasurface antennas designed to operate over the W-band frequency range (75-110 GHz).
Tomas Zvolensky   +3 more
doaj   +1 more source

Reconfigurable Inflatables Through Controlled Surface Crumpling

open access: yesAdvanced Science, EarlyView.
ABSTRACT Inflatable structures offer remarkable versatility due to their compact storage and rapid deployment, making them ideal for lightweight, quickly assembled, and deployable applications. These structures are typically made from membranes that are nearly inextensible yet highly flexible.
Yi Yang   +8 more
wiley   +1 more source

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