Results 101 to 110 of about 1,869,876 (283)
IEEE AccessThe paper proposes a four-directional beamforming switched antenna system based on Butler matrix for 28 GHz mmWave. It is made up of a 90-degree coupler, a crossover, and a 45-degree phase shifter.
Ming-An Chung +2 more
doaj +1 more source
A Novel Tri-Beam Antenna System Based on U-Shaped Dipole [PDF]
Radioengineering, 2019 Consisting of 6 radiating elements and a 3×3 Butler matrix, a novel tri-beam antenna system is proposed in this paper. The radiating element consists of two U-shaped arms and coupled strips, which shows a wide impedance characteristic.
X. W. Dai +4 more
doaj
Spin‐Polarized Magnetic Metal Electrodes for Magnetic Tunnel Junctions
MetalMat, EarlyView.This perspective surveys spin‐polarized magnetic metal electrodes for magnetic tunnel junctions, systematically covering conventional ferromagnets, collinear/noncollinear antiferromagnets, and emergent altermagnets. It compares tunneling polarization origins across these classes and emphasizes that effective electrode polarization is a momentum ...
Zhiyuan Duan +9 more
wiley +1 more source
Oikos, EarlyView.Understanding how physiological constraints scale up to realized niche differences remains a central challenge in functional ecology. Temperature strongly influences metabolic performance, activity, and habitat selection in ectotherms, yet few field studies quantify how thermal responses interact with diel and habitat structure to shape predator ...
Jason R. Rohr
wiley +1 more source
PLANTS, PEOPLE, PLANET, EarlyView.Positive perceptions of invasive species can hinder effective management, especially if management efforts that are rooted in scientific theories are misaligned with local ecological knowledge. We documented local ecological knowledge about land invasibility as predicted by invasion biology theories. Participants with greater local ecological knowledge
Laurel Mael Philpott, Orou G. Gaoue
wiley +1 more source
, 2018 Dr. Catherine Pagan is editor to the podcast, Butler Talks. This podcast, created from students who were in Dr.
Pangan, Catherine
core +1 more source
Quarterly Journal of the Royal Meteorological Society, EarlyView.The Weak‐Constraint Four‐Dimensional Variational (WC‐4DVAR) system markedly improved the analysis and forecasting of the 2024 sudden stratospheric warming (SSW) event. It reduced biases and enhanced 7–9 day predictions of temperature across the SSW life cycle, with the most pronounced gains for winds also during the critical onset period.
Shaoying Li +5 more
wiley +1 more source
Walter Butler to his father, from Camp Beechworth.
, 2020 This record was harvested from a previous catalogue system and will be withdrawn in 2025. Information in this record may be superseded or incomplete.
Butler Family
core
BUTLER Matrix for smart switched beam antenna applications
Derrotero, 2018 This paper describes the Butler Matrix’s state of the art in switched beam Smart antennas, as a result of the bibliographical revision of scientific articles, indexed journals, dissertations and books related to the subject.
Jorge Alberto Cabrera Botero +1 more
doaj
Spatial Dynamics of Tourism Sustainability in EU Member States
Sustainable Development, EarlyView.ABSTRACT This study introduces a synthetic indicator of tourism sustainability for the EU, bridging the gap between institutional monitoring and academic research. By applying the PROMETHEE II method to rank the 27 Member States in 2019 and 2023, the research transforms static data into a dynamic roadmap of post‐pandemic recovery. The findings reveal a
M. Rosario González‐Rodríguez +1 more
wiley +1 more source