Results 111 to 120 of about 1,095,168 (305)

Metasurfaces for Far-Field Radiation Pattern Correction of Antennas under Dielectric Seamed-Radomes. [PDF]

Materials (Basel), 2022
Cacocciola R, Ratni B, Mielec N, Mimoun E, Burokur SN.   +4 more
europepmc   +1 more source

Spiral slotted phased antenna array [PDF]

, 1982
A flush mounting, cavity-backed, dual orthogonal slot antenna for aircraft and space vehicles is described. Improved radiation pattern characteristics are obtained by making the spiral slot pattern elliptical in the aperture plane. A cavity and a flanged
Ellis, H., Jr.
core   +1 more source

Immune‐Driven Expression in Inclusion Body Myositis With T‐Cell Large Granular Lymphocytic Leukemia

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives T‐cell large granular lymphocytic leukemia (T‐LGLL), reported in up to 58% of inclusion body myositis (IBM) patients, is a rare leukemia of cytotoxic or less commonly helper T cells. The range of myopathies in T‐LGLL and the impact of coexisting T‐LGLL in IBM are not well understood. Our objectives are to investigate the spectrum of
Pannathat Soontrapa, Iago Pinal‐Fernandez, Pritikanta Paul, Michael P. Skolka, Margherita Milone, Min Shi, Mithun V. Shah, Maria Casal‐Dominguez, Katherine Pak, Andrew L. Mammen, Teerin Liewluck   +10 more
wiley   +1 more source

An Active Shaping Reflector Method for Space-Borne Membrane Reflector Antennas

IEEE Access
Conventional space-borne antenna shaping designs predominantly rely on a pre-defined reflector geometry, which lacks the capability to adapt to varying multi-stage service requirements once in orbit.
Gu Yongzhen, Wang Mengtian, Wang Haoxin
doaj   +1 more source

Analysis of the operating conditions for UAV-based on-board antenna radiation pattern measurement systems. [PDF]

PLoS One, 2021
Núñez J, Orgeira-Crespo P, Ulloa C, García-Tuñón I.   +3 more
europepmc   +1 more source

Trailing edge noise data with comparison to theory [PDF]

The noise emission generated by the passage of a turbulent airstream over the trailing edge of a semi-infinite plate was measured over a large range of airstream velocity and plate geometry.
Boldman, D., Olsen, W.
core   +1 more source

Development of a Prediction Model for Progression Risk in High‐Grade Gliomas Based on Habitat Radiomics and Pathomics

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To investigate the value of constructing models based on habitat radiomics and pathomics for predicting the risk of progression in high‐grade gliomas. Methods This study conducted a retrospective analysis of preoperative magnetic resonance (MR) images and pathological sections from 72 patients diagnosed with high‐grade gliomas (52 ...
Yuchen Zhu, Yuxi Gong, Weilin Xu, Xingjian Sun, Gefei Jiang, Lei Qiu, Kexin Shi, Mengxing Wu, Yinjiao Fei, Jinling Yuan, Jinyan Luo, Yurong Li, Yuandong Cao, Minhong Pan, Shu Zhou   +14 more
wiley   +1 more source

Forming the diagrams of electrically tunable plasmonic graphene stripe nanoantennas in the terahertz and far-, mid-infrared ranges

Известия высших учебных заведений. Поволжский регион: Физико-математические науки
Background. The purpose of this work is to study, using automated modeling methods, the possibility of scanning in frequency and forming radiation pattern (RP) of plasmonic graphene strip nanoantennas, electrically tunable by changing the chemical ...
Galina S. Makeeva
doaj   +1 more source

2D Optimal Trajectory Planning Problem in Threat Environment for UUV with Non-Uniform Radiation Pattern. [PDF]

Sensors (Basel), 2021
Galyaev AA, Lysenko PV, Yakhno VP.
europepmc   +1 more source

Feasibility study of a synthesis procedure for array feeds to improve radiation performance of large distorted reflector antennas [PDF]

Surface errors on parabolic reflector antennas degrade the overall performance of the antenna. Space antenna structures are difficult to build, deploy and control.
Smith, W. T., Stutzman, W. L.
core   +1 more source