Results 11 to 20 of about 1,326,537 (310)
The dual beam spectropluviometer [PDF]
, 2014 The Dual Beam spectropluviometer (DBS) measures the equivalent diameter, the fall velocity and the time of arrival of ...
Akrour, Nawal +6 more
openaire +2 more sources
Dual-Beam Leaky-Wave Antenna Array With Capability of Fixed-Frequency Beam Switching
IEEE Access, 2020 A novel fixed-frequency beam switchable dual-beam antenna array is presented, which consists five dual-beam leaky-wave antenna (LWA) elements designed on substrate integrated waveguide (SIW) and integrated together on a common substrate. The LWAs work on
Xiaowen Li +5 more
doaj +1 more source
IEEE Access, 2021 This paper proposes a novel feeding network that enables the antenna array to perform dual-band continuous beam scanning and beam switching between forward and backward directions.
Pei-Ling Chi +3 more
doaj +1 more source
Dual-Beam Intelligent Reflecting Surface for Millimeter and THz Communications [PDF]
, 2022 Intelligent reflecting surface (IRS) is a cost-efficient technique to improve power efficiency and spectral efficiency. However, IRS-aided multi-antenna transmission needs to jointly optimize the passive and active beamforming, imposing a high ...
Hans Dieter Schotten (9773372) +1 more
core +1 more source
The effect of nanoparticle size on thermal diffusivity of gold nano-fluid measured using thermal lens technique [PDF]
Journal of the European Optical Society-Rapid Publications, 2013 A dual beam mode-mismatched thermal lens method has been employed to investigate the dependence of thermal diffusivity of gold nanofluid on nanoparticles sizes. The samples were prepared at various sizes by utilizing the gamma radiation method.
Shahriari E., Mat Yunus W. M., Zamiri R.
doaj +1 more source
Electronic Beam Steering Metamaterial Antenna with Dual-Tuned Mode of Liquid Crystal Material
Sensors, 2023 In this study, a dual-tuned mode of liquid crystal (LC) material was proposed and adopted on reconfigurable metamaterial antennas to expand the fixed-frequency beam-steering range.
Shuang Ma +3 more
doaj +1 more source
Dual-beam intracavity optical trap with all-optical independent axial and radial self-feedback schemes [PDF]
, 2021 Recently single-beam intracavity optical tweezers have been reported and achieved orders-of-magnitude higher confinement than standard optical tweezers.
Wei Xiong (58411) +7 more
core +1 more source
A dual Stage ion engine for high impulse missions [PDF]
, 2012 In this paper, the applicability of dual stage ion optics and in particular of the so-called dual stage ion engine to high power, high specific impulse missions will be evaluated. First, the performance limits of conventional two gridded ion engines (GIE)
Coletti, M., Gabriel, S.B.
core +1 more source
Ultrafast Dynamics of Extraordinary Optical Transmission through Two-Slit Plasmonic Antenna
Nanomaterials, 2023 We have theoretically investigated the spatial-temporal dynamics of extraordinary optical transmission (EOT) through a two-slit plasmonic antenna under femtosecond laser dual-beam irradiation.
Guangqing Du +7 more
doaj +1 more source
Design of controlled RF switch for beam steering antenna array [PDF]
, 2008 YesA printed dipole antenna integrated with a duplex RF switch used for mobile base station antenna beam steering is presented. A coplanar waveguide to coplanar strip transition was adopted to feed the printed dipole.
Abd-Alhameed, Raed +3 more
core +1 more source