Results 121 to 130 of about 1,902,856 (342)
Advanced Functional Materials, EarlyView.A multivalent antiviral platform based on honeycomb‐shaped DNA nanostructures (HC–Urumin) is developed to enhance the potency and breadth of the host defense peptide Urumin. Through spatially patterned trimeric presentation, HC–Urumin disrupts influenza A virus entry, improves cell viability, and reduces disease severity in vivo‐offering a modular and ...
Saurabh Umrao +11 more
wiley +1 more source
IEEE AccessThis paper presents a simplified ultra-wideband tightly coupled antenna (SUTCA) array that achieves unprecedented bandwidth without lossy materials or frequency selective surfaces.
Hong Tang +7 more
doaj +1 more source
Location Optimization for Square Array Antennas Using Differential Evolution Algorithm
International Journal of Antennas and Propagation, 2016 In recent works thinned arrays giving minimum peak sidelobe levels for planar square antenna arrays are obtained using Hadamard difference sets. In the current work thinned array configurations giving lower peak sidelobe levels than those given in the ...
Erkan Afacan
doaj +1 more source
Advanced Techniques for the synthesis of wideband array antennas [PDF]
, 2013 Antenna arrays are the most effective solution for radiating systems that need high directivity and low sidelobe level, such as radio astronomy, remote sensing, and radar applications.
BIANCHI, DAVIDE
core
Multiscale Structuring of Hydroxyapatite via Two‐Photon Lithography of Nanocomposites
Advanced Functional Materials, EarlyView.Hydroxyapatite scaffolds are of great interest in bone tissue engineering applications, ranging from 3D cell culture to regenerative medicine. Using two‐photon lithography of a transparent nanocomposite, hydroxyapatite microstructures with features ranging from submicron to centimeter‐scale are fabricated. This allows to mimic the natural bone geometry,
Leonhard Hambitzer +6 more
wiley +1 more source
Electronics Letters, 1969 Multiring-antenna arrays are considered, particularly for space telemetry and communication. The configuration with two concentric rings is examined. The distant electric field, the radiation resistance, the directive gain and the mutual-coupling impedances are derived. Numerical results are given for arrays with eight monopoles in each ring.
E. Borchi, V. Cappellini
openaire +1 more source
An All‐Optical Driven Bio‐Photovoltaic Interface for Active Control of Live Cells
Advanced Functional Materials, EarlyView.Bio‐photovoltaic Interface (BIO‐PV‐I) for live cell manipulation is presented. BIO‐PV‐I can be activated non‐invasively and remotely to control the spatial motility, adhesion, and morphology of cells adhering to it. BIO‐PV‐I uses a patterned light‐induced electric potential in iron‐doped lithium niobate crystals whose light‐driven and reversible nature,
Lisa Miccio +8 more
wiley +1 more source
OAM waves with fewer redundant OAM modes generated by two circularly polarized antenna arrays
ICT ExpressTwo circularly polarized antenna arrays, which reduce two redundant OAM modes, are proposed in this paper. One antenna array is composed of 8 right-handed circularly polarized (RHCP) antennas and radiates OAM mode l in x component, OAM mode l in y ...
Dandan Liu +4 more
doaj +1 more source
Analysis of MMIC arrays for use in the ACTS Aero Experiment [PDF]
The Aero Experiment is designed to demonstrate communication from an aircraft to an Earth terminal via the ACTS. This paper describes the link budget and antenna requirements for a 4.8 kbps full-duplex voice link at Ka-Band frequencies. Three arrays, one
Lee, R. +3 more
core +1 more source
Three‐dimensional Antimony Sulfide Based Flat Optics
Advanced Functional Materials, EarlyView.This work presents the development of a grayscale electron beam lithography (g‐EBL) method for fabricating antimony trisulfide (Sb2S3) nanostructures with customizable 3D profiles. The refractive index of g‐EBL patterned Sb2S3 is determined based on the synergy of genetic algorithm and transfer matrix method.
Wei Wang +18 more
wiley +1 more source