Results 131 to 140 of about 60,054 (191)

DISEÑO DE UN ARREGLO RADIOINTERFEROMÉTRICO DE ANTENAS YAGI-UDA CON CENTRO DE VENTANA ESPECTRAL EN 400 MHZ

Revista Técnica de la Facultad de Ingeniería
RESUMEN Es bien sabido que la observación de objetos celestes a través del empleo de instrumentos radioastronómicos posee en general importantes ventajas con respecto a los tradicionales estudios en el espectro visible.
Ángel G. Muñoz S., Leonardo Hernández V.   +1 more
doaj  

Antena Dipolo Planar [PDF]

Anais do XXV Simpósio Brasileiro de Telecomunicações, 2007
Christian Pinheiro, Felipe Almeida
openaire   +1 more source

Gill infection in Macrodon ancylodon and Nebris microps caused by Lernanthropus sp. (Copepoda: Lernantropidae) in the Brazilian Amazon. [PDF]

Rev Bras Parasitol Vet
Rodrigues AE, Pantoja GDS, Pamplona VMS, Sindeaux Neto JL, Velasco M.   +4 more
europepmc   +1 more source

A Straightforward Procedure for the High-Yield Extraction of Tricin and Flavonoids from Ecuadorian <i>Huperzia brevifolia</i> (Lycopodiaceae). [PDF]

Plants (Basel)
Armijos C, Castillo LN, Ramírez J, Vidari G.   +3 more
europepmc   +1 more source

Dielektrik - rezonator antena

, 2019
This paper present the dielectric rezonator antenaa (DRA), what does it mean, how to design it, how do we calculate the resonant frequency. While designingDRA with the toolkit HFSS, the main goal was to present how to design a DRA, and to see how to achieve specific needs by manipulating the dielectric constant or the dimensions of the DRA.
openaire   +1 more source

[May you benefit from what you see: A humanistic reflection on the palliative gaze]. [PDF]

An Sist Sanit Navar
Torres-Tenor JL.
europepmc   +1 more source

[Fernando Oreste Nannetti's mural at the Volterra Psychiatric Hospital, Italy: iconographic analysis]. [PDF]

Hist Cienc Saude Manguinhos
Arrogante PT.
europepmc   +1 more source

Antenas MIMO multibanda

, 2019
En este Trabajo Fin de Grado se ha diseñado, construido y medido distintos tipos de antenas multibanda (2,4 y 5 GHz) MIMO. Para el diseño de nuestras antenas se buscará abarcar un ancho de banda aproximado entre (2,4 - 2,5 GHz) y (5 - 6 GHz). Cuando hablamos de antenas MIMO nos estamos refiriendo a una antena con varios elementos del mismo tamaño y ...
openaire   +1 more source

Perturbaciones en antenas microstrip

, 1981
Peer ...
Ferrando Bataller, Miquel, Cardama Aznar, Ángel   +1 more
openaire   +1 more source

Neotropical Thoasia Liebke, 1939 and Straneotia Mateu, 1961 of the Cryptobatida group, subtribe Agrina: Taxonomic revisions with notes on their ways of life (Insecta, Coleoptera, Carabidae, Lebiini). [PDF]

Zookeys, 2018
Erwin TL, Aldebron C.
europepmc   +1 more source