Eber Huanca Cayo

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The present study shows the relationship between welding quality and optical-acoustic emissions from electric arcs, during welding runs, in the GMAW-S process. Bead on plate welding tests was carried out with pre-set parameters chosen from manufacturing standards. During the welding runs interferences were induced on the welding path using paint, grease or(More)
Most of the inspection methods used for detection and localization of welding disturbances are based on the evaluation of some direct measurements of welding parameters. This direct measurement requires an insertion of sensors during the welding process which could somehow alter the behavior of the metallic transference. An inspection method that evaluates(More)
The main contribution of this work is to propose a distributed on-demand routing and wavelength assignment algorithm for WDM networks. The proposed scheme, termed Distributed Light-path Allocation (DLA), is capable to select routes and establish light-paths via message exchanges without imposing a major overhead on the network. The proposed scheme is able(More)
The performance of WDM networks are usually analyzed through the blocking probability of a pool of requests. It is argued that alternative routes can have a significant impact on the blocking probability of a WDM network. In this work, we analyze the impact of alternative routes in mesh and ring topologies. The results show that, contrary to what would be(More)
The main contribution of this work is to propose a distributed on-demand routing and wavelength assignment algorithm for WDM networks. The proposed algorithm, termed WDM-DSR, is capable to select routes and establish light-paths via message exchanges without imposing a major overhead on the network. Also, we show that the proposed scheme can be used to(More)
The present paper is part of a larger project which aims to monitor and mitigate dust on the PV systems in the city of Arequipa. Its objective is to present a simplified model for simulating PV panels for the design and project maximum power point tracker - MPPT controllers. With an experimental setup, signals of voltage, current, power, irradiance and(More)
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