Results 91 to 100 of about 42,931 (308)

3D-printed low-cost choke corrugated Gaussian profile horn antenna for Ka-band. [PDF]

Sci Rep, 2023
Zárate YD, Torres F, Rodriguez M, Pizarro F.   +3 more
europepmc   +1 more source

Revisiting a long‐overlooked skull: Implications for the distribution of Dinodontosaurus brevirostris (Kannemeyeriiformes) in the Brazilian Triassic

The Anatomical Record, EarlyView.
Abstract Dicynodonts (Anomodontia: Dicynodontia) were one of the main groups of terrestrial tetrapods in Permian and Triassic faunas. In Brazil, the genus Dinodontosaurus is one of the most common tetrapod taxon in the Triassic Santa Maria Supersequence. This genus has a complex taxonomic history and is represented in the Triassic of both Argentina and
Julia Lara Rodrigues de Souza, João Lucas Da Silva, Voltaire D. P. Neto, Arielli Fabrício Machado, Juan A. Escobar, Felipe L. Pinheiro   +5 more
wiley   +1 more source

Dual-Mode Conical Horn Antenna with 2-D Azimuthal Monopulse Pattern for Millimeter-Wave Applications. [PDF]

Sensors (Basel), 2023
Piroutiniya A, Rasekhmanesh MH, Masa-Campos JL, Calero-Rodríguez JL, Ruiz-Cruz JA.   +4 more
europepmc   +1 more source

Integrated terahertz TEM horn antenna

Electronics Letters, 2007
A terahertz transverse electromagnetic horn antenna (THz-TEMHA) monolithically integrated on a gallium arsenide substrate has been studied by means of subpicosecond pulses generated and measured on a 50 Ω coplanar waveguide. The measured reflection coefficient is below −10 dB from 100 GHz to about 1 THz.
Peytavit, Emilien, Lampin, Jean-Francois, Akalin, Tahsin, Desplanque, L.   +3 more
openaire   +1 more source

Broadening the semiaquatic scene: Quantification of long bone microanatomy across pinnipeds

The Anatomical Record, EarlyView.
Abstract Investigations of bone microanatomy are commonly used to explore lifestyle strategies in vertebrates. While distinct microanatomical limb bone features have been established for exclusively aquatic and terrestrial lifestyles, identifying clear patterns for the semiaquatic lifestyle remains more challenging.
Apolline Alfsen, Christian de Muizon, Olivier Lambert, Giovanni Bianucci, Antonia R. Kaffler, Matthew R. McCurry, Alexandra Houssaye, Rafael M. Varas‐Malca, Rodolfo Salas‐Gismondi, Oliver Hampe, Eli Amson   +10 more
wiley   +1 more source

Broadband Circularly Polarized Conical Corrugated Horn Antenna Using a Dielectric Circular Polarizer. [PDF]

Micromachines (Basel), 2022
Xiao J, Tian J, Ding T, Li H, Ye Q.
europepmc   +1 more source

Quasi-optical antenna-mixer-array design for terahertz frequencies [PDF]

A new quasi-optical antenna-mixer-array design for terahertz frequencies is presented. In the design, antenna and mixer are combined into an entity, based on the technology in which millimeter-wave horn antenna arrays have been fabricated in silicon ...
Guo, Yong, Potter, Kent A., Rutledge, David B.   +2 more
core   +1 more source

The internal crest anatomy of Lambeosaurini (Hadrosauridae: Lambeosaurinae)

The Anatomical Record, EarlyView.
Abstract The supracranial crests of lambeosaurine hadrosaurids have long been a focus of study due primarily to their extreme morphology. The external anatomy of lambeosaurine crests is understood to be highly variable between species, but variation in their internal anatomy is less well understood.
Thomas W. Dudgeon, Courtney Brown, David C. Evans   +2 more
wiley   +1 more source

The Uses of a Dual-Band Corrugated Circularly Polarized Horn Antenna for 5G Systems. [PDF]

Micromachines (Basel), 2022
Liu CK, Chiang WY, Rao PZ, Hung PH, Chen SH, Chen CA, Wang LH, Abu PAR, Chen SL.   +8 more
europepmc   +1 more source

Reflector antennas with low sidelobes, low cross polarization, and high aperture efficiency [PDF]

Techniques are presented for computing the horn near field patterns on the subreflectors and for correcting the phase center errors of the horn pattern by shaping the subreflector surface.
Faigen, I. M., Reichert, C. F., Shore, R. A., Sletten, C. J.   +3 more
core   +1 more source