999 resultados para 509.221
Resumo:
The Global River Discharge (RivDIS) data set contains monthly discharge measurements for 1018 stations located throughout the world. The period of record varies widely from station to station, with a mean of 21.5 years. These data were digitized from published UNESCO archives by Charles Voromarty, Balaze Fekete, and B.A. Tucker of the Complex Systems Research Center (CSRC) at the University of New Hampshire. River discharge is typically measured through the use of a rating curve that relates local water level height to discharge. This rating curve is used to estimate discharge from the observed water level. The rating curves are periodically rechecked and recalibrated through on-site measurement of discharge and river stage.
Resumo:
Este artículo presenta una solución al problema de autenticación segura, portable y expandible realizando una combinación de la tecnología Java y el almacenamiento del certificado digital X.509 en las tarjetas Java para acceder a los servicios ofrecidos por una institución, en este caso concreto la Universidad Tecnológica de Panamá, garantizando la autenticidad, confidencialidad, integridad y no repudio.
