Results 21 to 30 of about 1,498,192 (263)

Design of 94GHz Dual-Polarization Antenna Fed by Diagonal Horn for Cloud Radars

open access: yesIEEE Access, 2022
In this paper, a 94 GHz dual-polarization high-isolation cassegrain antenna feed by a diagonal horn antenna is designed. The antenna consists of a D = 540 mm main reflector, sub-reflector, and dual-port dual-polarization diagonal horn feed antenna.
Jie Wang   +4 more
doaj   +1 more source

Absence of IgG antibodies among high-risk contacts of two confirmed cases of Crimean-Congo haemorrhagic fever in the autonomous region of Madrid (Spain)

open access: yesJournal of Infection and Public Health, 2020
Crimean-Congo haemorrhagic fever (CCHF) is a widely distributed tick-borne disease. In Spain, the disease has emerged as outbreak associated with high-risk exposures. Our goal was to evaluate the prevalence of antibodies against the CCHF virus (CCHFV) in
Pello Latasa   +19 more
doaj   +1 more source

Tachism: Tri-Port Antenna with Triple Notching Characteristic and High Isolation System for MIMO Application

open access: yesMathematics, 2022
A novel ultra-wideband (UWB) KAYI-shaped and common KITE-shaped ground plane tri-port antenna is proposed. The proposed research work has a small size of (30 × 30 × 1.6 mm3).
Shahid Basir   +4 more
doaj   +1 more source

Isolation and reconstitution of the high‐affinity choline carrier [PDF]

open access: yesFEBS Letters, 1989
Monoclonal antibodies, which block the high‐affinity uptake of choline in synaptosomal ghosts, have been used to purify a membrane polypeptide (80 kDa) from insect synaptosomal membranes. This isolated protein was found to catalyse the sodium‐dependent, hemicholinium‐sensitive accumulation of choline after reconstitution into liposomes, thus ...
Knipper, M., Boekhoff, I., Breer, H.
openaire   +2 more sources

Isolation for high-risk patients [PDF]

open access: yesPostgraduate Medical Journal, 1976
Summary Standard isolation accommodation provides adequate protection against the infectious diseases prevalent in the U.K. but higher standards are necessary for more dangerous infections imported from overseas. These may be provided reasonably cheaply by modifying existing wards but staff are still exposed to risk.
openaire   +2 more sources

Compact, Isolated High-velocity Clouds [PDF]

open access: yes, 2004
26 pages, 8 (low res.) png figs., to appear in the book "High Velocity Clouds" Eds.
Burton, W. B., Braun, R., de Heij, V.
openaire   +2 more sources

Performance Enhancement of MIMO Patch Antenna Using Parasitic Elements

open access: yesIEEE Access, 2021
This paper investigates the effects of parasitic elements on the performance of MIMO patch antenna. Multiple square parasitic elements are added in close proximity to each of the rectangular patch elements.
Huy Hung Tran, Nghia Nguyen-Trong
doaj   +1 more source

A Compact Dual Circularly Polarized Antenna With Wideband Operation and High Isolation

open access: yesIEEE Access, 2020
This paper presents a dual-sense circularly polarized (CP) antenna with compact size, high isolation, and wideband characteristics. The antenna consists of a microstrip patch, an array of parasitic metal plates positioned around the patch, and a 90 ...
Huy Hung Tran   +2 more
doaj   +1 more source

Isolation of high-purity and high-stability exosomes from ginseng

open access: yesFrontiers in Plant Science, 2023
Exosomes are nano-sized extracellular vesicles that regulate cell growth and defense by delivering bioactive cellular constituents. They are a promising material for biomedical and cosmetic utilization, especially in medicinal crops such as ginseng. One main hurdle to their usage is the need for a method to isolate stable exosomes with high purity.
Jinwoo Jang   +7 more
openaire   +3 more sources

High-Isolation Eight-Element MIMO Array for 5G Smartphone Applications

open access: yesIEEE Access, 2019
In this paper, an eight-element MIMO array for 5G smartphone applications in the 3.45-GHz band (3.3-3.6 GHz) is presented. The array consists of two types of four-antenna arrays (U-shaped and L-shaped coupled-fed loop elements), which are symmetrically ...
Wen Jiang, Bo Liu, Yangqiang Cui, Wei Hu
doaj   +1 more source

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