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Abstract A theoretical study has been presented for the calculation of phonon focusing for the ballistic phonons in multi layer superlattice. The calculated image has been discussed on the base of the slowness and group ...

El poliestireno (PS) y las poliolefinas (PO) tales como el polietileno (PE) y el polipropileno (PP), son componentes mayoritarios de los residuos plásticos urbanos. Reciclarlos conjuntamente, evitando la separación pre...

En este trabajo se realiza un análisis crítico de los estudios relacionados con los orígenes de la agricultura, particularmente en el Noroeste Argentino, a partir de la escisión de la domesticación como fenómeno en...

The paleofloristic record of King George Island (South Shetland Islands) and the Antarctic Peninsula is discussed including its importance in paleogeographic and paleoclimate reconstructions, stratigraphic correlation, a...

In an ideal world, organizations “share” the cloud, logically separated from each other by the cloud provider, operating independently of each other in a sandbox, pulling resources only when needed, and respecting th...