Results 1 to 10 of about 381,647 (302)

ELECTROQUIMIENERGÍA Y CAMBIO CLIMÁTICO: UNA REVISIÓN

open access: yesinfoANALITÍCA, 2022
La situación actual que se vive requiere de una adicional y urgente atención por parte de las Ciencias, Ingenierías y Tecnologías para control ambiental, climático, sanitario, por el bienestar y para la vida en el planeta.
Jairo Márquez P.   +5 more
doaj   +1 more source

LoS, Non-LoS and Quasi-LoS Signal Propagation: A Three State Channel Model

open access: yes2022 IEEE 95th Vehicular Technology Conference: (VTC2022-Spring), 2022
The modeling of wireless communications channels is often broken down into two distinct states, defined according to the optical viewpoints of the transmitter (TX) and receiver (RX) antennas, namely line-of-sight (LoS) and non-LoS (NLoS). Movement by the TX, RX, both and/or objects in the surrounding environment means that channel conditions may ...
Browning, Jonathan W.   +4 more
openaire   +8 more sources

LO/NLO, LO* and jet algorithms [PDF]

open access: yesProceedings of RADCOR 2009 - 9th International Symposium on Radiative Corrections (Applications of Quantum Field Theory to Phenomenology) — PoS(RADCOR2009), 2010
7 pages, presented at ...
openaire   +2 more sources

Riesgo sísmico, geotécnico y estructural. El caso de estudio de los edificios San Jerónimo de Yuste en Bogotá

open access: yesInformes de la Construccion, 2018
El conjunto residencial San Jerónimo de Yuste se encuentra ubicado en Bogotá, en un terreno inclinado en el pie de monte de los cerros orientales de la ciudad.
J. M. Medina   +6 more
doaj   +1 more source

Expression of Fluorescent Genes in Trypanosoma cruzi and Trypanosoma rangeli (Kinetoplastida: Trypanosomatidae): Its Application to Parasite-Vector Biology [PDF]

open access: yes, 2005
Two Trypanosoma cruzi-derived cloning vectors, pTREX-n and pBs:CalB1/CUB01, were used to drive the expression of green fluorescent protein (GFP) and DsRed in Trypanosoma rangeli Tejera, 1920, and Trypanosoma cruzi Chagas, 1909, isolates, respectively ...
Abreu Blanco, Maria Teresa   +9 more
core   +1 more source

Sedimentología y vertebrados fósiles de la Formación Santa Cruz (Mioceno temprano) en Lago Posadas, suroeste de Patagonia, Argentina [PDF]

open access: yes, 2019
Lago Posadas se ubica al pie de los Andes Patagónicos Australes, en el suroeste de Argentina, donde la Formación Santa Cruz (FSC) del Mioceno temprano muestra afloramientos potentes y lateralmente continuos.
Aramendía, Inés   +3 more
core   +2 more sources

Secado de Pinus caribaea var. hondurensis utilizando radiación de microondas

open access: yesTecnología en Marcha, 2022
Se desarrolló una metodología de secado para Pinus caribaea var. hondurensis, empleando horno de microondas doméstico (HMO), consistente de pulsos de radiación y períodos de enfriamiento, que consume 92% menos energía y 58% menos tiempo.
Simón E. Luckert Froget   +4 more
doaj   +1 more source

Load demand profile for a large charging station of a fleet of all-electric plug-in buses

open access: yesThe Journal of Engineering, 2014
This study proposes a general procedure to compute the load demand profile from a parking lot where a fleet of buses with electric propulsion mechanisms are charged.
Mario A. Rios   +5 more
doaj   +1 more source

Evidence of Quaternary tectonics along Río Grande valley, southern Malargüe fold and thrust belt, Mendoza, Argentina [PDF]

open access: yes, 2019
The Malargüe fold and thrust belt is developed in the Argentinian Andes between 34° and 37° S, through the tectonic inversion of Upper Triassic and Lower Jurassic depocenters of the Neuquén Basin, with an uplift history since the Cretaceous.
Colavitto, Bruno   +4 more
core   +1 more source

A partir de los movimientos de un pájaro... La «danza de la perdiz» en los rituales ganaderos de los Andes peruanos [PDF]

open access: yes, 2012
This paper presents a brief look at the conception of a bird that the people of the central Andes of Peru have. We explore this perspective through the collective representations found in a ritual and in beliefs and stories about this animal in the ...
Rivera Andía, Juan Javier
core   +2 more sources

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