Results 51 to 60 of about 197,664 (248)

Los actores periféricos de la convergencia en Argentina. El caso de la CPE como actor cooperativo provincial

open access: yesIntersecciones en Comunicación, 2022
Este artículo analiza los factores que hicieron posible la vigencia de la empresa cooperativa CPE de la ciudad de Santa Rosa, en La Pampa, como actor relevante del mercado info-comunicacional en su región en el proceso de convergencia y concentración ...
Alejandro Linares
doaj   +1 more source

Telecomunicaciones [PDF]

open access: yes, 2006
Otorgar reconocimiento oficial y validez nacional a los títulos de Técnico en Telecomunicaciones y Licenciado en Telecomunicaciones, que expide la Universidad del Aconcagua, a dictarse bajo la modalidad presencial en la Facultad de Ciencias Sociales y ...
FILMUS [Ministro]
core   +1 more source

Mixing regimes in tropical high‐mountain Andean lakes

open access: yesLimnology and Oceanography, Volume 70, Issue 10, Page 2872-2892, October 2025.
Abstract Lowland tropical lakes deeper than 15 m are typically warm monomictic, but whether the regime may switch to polymixis at high elevations remains uncertain. Using a year‐long high‐frequency dataset from thermistor chains from 10 deep lakes and occasional temperature profiles from 202 lakes in Ecuador's Cajas Massif, this study examines the ...
Pablo V. Mosquera   +4 more
wiley   +1 more source

Propuesta de mejoramiento de la red de voz y datos del Instituto Educativo San Fernando municipio de Pereira [PDF]

open access: yes, 2013
En este proyecto se muestra el diseño de la red de telecomunicaciones del Instituto Educativo San Fernando de Pereira, basado en la norma (ANSI/TIA) la cual está vigente para las redes de telecomunicaciones.
Gallego López, Luis Esteban   +1 more
core  

Enhancing Magneto‐Dielectric Material Characterization by Integrating SRR Sensor, De‐Embedding Procedure, and Artificial Neural Network Modeling

open access: yesRadio Science, Volume 60, Issue 10, October 2025.
Abstract This work presents an improved methodology for characterizing the effective permittivity (ε) and permeability (μ) of magnetodielectric (MD) composites, using Fe3O4 nanoparticles dispersed in a PDMS polymer matrix. The proposed approach integrates a planar split‐ring resonator sensor design and an artificial neural network model for parameter ...
G. Álvarez‐Botero   +10 more
wiley   +1 more source

Ley #153 de telecomunicaciones [PDF]

open access: yes, 1999
José R. Cruz Campillo (biografía): Abogado dominicano, egresado de la Universidad Nacional Pedro Henríquez Ureña (UNPHU). Realizó un posgrado en derecho e instituciones legales estadounidenses en la Universidad de Wisconsin.
Cruz Campillo, José R.
core  

Memoria, historia y telecomunicaciones

open access: yesAnuario Jurídico y Económico Escurialense, 2021
El acontecer individual y social ha quedado registrado desde los orígenes de la humanidad en el legado material y en los relatos cuya interpretación nos ha sido, y nos es, transmitida a través de la memoria de sus protagonistas y de los testimonios de cronistas e historiadores, por los medios disponibles en cada época.
openaire   +2 more sources

A low‐cost protocol for the optical method of vulnerability curves to calculate P50

open access: yesApplications in Plant Sciences, Volume 13, Issue 2, March-April 2025.
Abstract Premise The quantification of plant drought resistance, particularly embolism formation, within and across species, is critical for ecosystem management and agriculture. We developed a cost‐effective protocol to measure the water potential at which 50% of hydraulic conductivity (P50) is lost in stems, using affordable and accessible materials ...
Georgina González‐Rebeles   +3 more
wiley   +1 more source

Characterization of the Effective Conductivity in Radio Frequency of Additive Manufacturing Materials

open access: yesRadio Science, Volume 60, Issue 2, February 2025.
Abstract This work presents the characterization of the effective conductivity of additive manufacturing materials used for the fabrication of high‐frequency communication devices. Factors such as material type, porosity, roughness, and oxidation reduce this conductivity, leading to increased insertion loss in the manufactured devices.
Carmen Bachiller   +8 more
wiley   +1 more source

Behind the Door: Practical Parameterization of Propagation Parameters for IEEE 802.11ad Use Cases

open access: yesTechnologies
The integration of the 60 GHz band into the IEEE 802.11 standard has revolutionized indoor wireless services. However, this band presents unique challenges to indoor wireless communication infrastructure, originally designed to handle data traffic in ...
Luciano Ahumada   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy