Results 41 to 50 of about 803,402 (286)
A multi directional dielectric lens approach for antennas used in industrial RADAR applications
, 2022 S.328-331A multi directional dielectric lens approach for beam steering on the basis of an ellipsoidal antenna is presented in this paper. Good antenna characteristics allow a modification of the feeding device used for the desired beam steering in ...
Rolfes, I. +5 more
core +1 more source
FEBS Open Bio, EarlyView.TisIBP8, a fungal‐derived hyperactive ice‐binding protein, helps Caenorhabditis elegans survive dehydration. It localizes near cell membranes, reduces cell damage, and helps maintain membrane structure during drying. These results suggest that ice‐binding proteins can protect cells from dehydration stress as well as freezing stress.
Daiki Shimose +9 more
wiley +1 more source
An international survey of daily disposable contact lens prescribing
, 2013 Free to read\ud \ud Purpose\ud \ud The aim was to determine the extent of daily disposable contact lens prescribing worldwide and to characterise the associated demographics and fitting patterns.\ud \ud Methods\ud \ud Up to 1,000 survey forms were sent ...
Morgan, Philip B. +3 more
core +1 more source
Effect of terahertz irradiation on DNA damage repair in living cells
FEBS Open Bio, EarlyView.We investigated the effect of terahertz (THz) wave irradiation on DNA double‐strand break (DSB) repair in living cells. We found that THz irradiation enhanced DSB repair at specific frequencies, whereas heat treatment inhibited it, indicating that this effect is nonthermal and frequency‐specific.
Yuya Ueno +3 more
wiley +1 more source
A 3D-Printed Spherical Dual-Circular Polarized Luneburg Lens Antenna for Ku-Band
IEEE AccessIn this paper, we propose a novel three-dimensional-printed Luneburg lens for converting linear polarization to dual-circular polarization and successfully apply it in a multibeam antenna.
Qing Wang +4 more
doaj +1 more source
Analysis and Design of a Metamaterial Lens Antenna Using the Theory of Characteristic Modes
International Journal of Antennas and Propagation, 2018 A new single-layer metamaterial lens antenna aimed to operate at 10 GHz is proposed in this paper. The lens antenna consists of twelve capacitively coupled unit cells distributed along a ring and illuminated by an open-ended circular waveguide with a ...
Daniel Santillán-Haro +3 more
doaj +1 more source
3D-Printed All-Metal Terahertz Multibeam Lens Antenna Based on Photonic Crystal
IEEE Access, 2023 This paper presents a realization of a D- band multibeam lens antenna based on 3D printing. It extends all-metal Luneburg lens to terahertz band for the first time, and demonstrates the application potential of 3D-printed antenna in the associated ...
Weihua Yu +4 more
doaj +1 more source
Optimizing photoexcitation conditions for time‐resolved X‐ray solution scattering experiments
FEBS Open Bio, EarlyView.Time‐resolved X‐ray solution scattering (TR‐XSS) is a powerful technique to visualize how proteins change their structure in real time after light activation. Selecting the right laser photoexcitation conditions—fluence, excitation geometry, and sample refresh rate—is critical to maximize the experimental signal while avoiding unwanted side effects ...
Matteo Levantino
wiley +1 more source
Antenna Measurement System at 300 GHz for the Terasense Project [PDF]
, 2010 The aim of this paper is to introduce the design techniques used to develop the antenna measurement system for the Terasense Project. This project, funded by the Spanish Government, involves millimetre-wave systems design.
Muñoz Acevedo, Alfonso +2 more
core
High Gain Antenna Miniaturization With Parasitic Lens
IEEE Access, 2020 The scenario of using a spatially distributed antenna for miniaturized applications is presented in this work. A model of lens antenna with a low profile, compact, and high focusing superstrate, which exquisitely combines the conventional lens and ...
Duy-Ninh Dang, Chulhun Seo
doaj +1 more source