From June 2000 to June 2001, a total of 741 ticks were collected from 51 free-living wild animals captured at the Porto-Primavera Hydroelectric power station area, located alongside an approximately 180 km course of the Paran river, between the states of S o Paulo and Mato Grosso do Sul, comprising 9 species of 3 genera: Ambly-omma (7 species), Boophilus (1) and Anocentor (1). A total of 421 i...

The assessment of existing infrastructures in the energy sector is great economic importance for world. extension power generation life hydroelectric plants depends on logical decisions regarding maintenance and renewal equipment. For this purpose, a Bayesian network (BN) has been applied to evaluate failures hydraulic turbine calculate failure turbine. Forty-six nodes have identified that will...

Seeking 100% renewable energy source (RES) penetration in low-inertia, isolated grids presents major challenges, including frequency control and stability. This is the case small island systems relying on variable RES pumped-hydro storage, where limited ramping capabilities of hydro turbines compromise their response. In this study, solutions are examined to allow operation such under condition...

Phase III development of a micro-hydroelectric power generating system is focused on enhancing the system designed by Phases I and II. The previous phases focused on the use of the Gorlov Helical Turbine (GHT) to derive power from a fresh water environment, specifically the Stevens River in Vermont. Phase III exclusively focused on deriving power from an ocean environment and the construction o...

This paper presents a work tending to implement an automated decision system in the management of production of a hydroelectric network. An object-oriented rule-based architecture is proposed to ensure an intelligent and automatic management of the knowledge in use in the daily decisional process of a major Canadian company. A planner-based solution is also discussed as a perspective for this w...

The Monasavu catchment was selected as an additional study site for biodiversity assessment at the top of the PABITRA wet-zone landscape transect on Viti Levu. The site consists of upland rain forest with cloud forest and a freshwater lake. The lake was constructed to supply hydroelectric power. The biota of the area has been little studied, but initial surveys indicate that many endemic specie...

This paper presents a comparison of Isolated (Flyback) and non-Isolated (Buck) multiple input-single output (MISO) DC-DC converters. The analysis converters is based on pulsed voltage source cells (PVSC). modeling both converter types detailed through their mathematical models electrical simulations using Matlab/Simulink PSIM. focuses the sizing parameters, non-ideal characteristics efficiency....