In Brazil, hydroelectricity represents close to 70% of the energy consumed in country. However, hydroelectric plant operations may be affected by deposit sediments for erosive processes on reservoir margins. This study presents results implementing two semi-rigid erosion control techniques installed margins Brazilian Hydroelectric Power Plants (HPPs). These were gabion and mattress used as a mi...

Small hydroelectric power generation is attractive from both an environmental and economic point of view. Technological innovations mitigation measures are making small plants inexpensive viable source renewable energy which can be generated independently. They contribute not only to protection, but also reduce human dependence on fossil fuels. This study dedicated finding solutions based techn...

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The paper considers the issues of appearance cavitation in hydroabrasive flows, which can lead to rather complex phenomena, presents difficulties for understanding essence process. Until now, wear working bodies blade hydraulic machines, depending on mode their operation, has not been sufficiently studied, and method selecting operating modes hydroelectric power plants (HPP) pumping stations (P...

Because ecosystem services are generally not produced and used in the same place, their assessment should consider the flows of services from ecosystems to users. These flows depend on the characteristics and spatial distribution of ecosystems and users, the spatial relationships between them, and the presence of filters or barriers between ecosystems and users. The objective of this paper is t...

This paper examines TBM vibration as a source of information about geological conditions. An EPB TBM was outfitted with accelerometers to monitor vibration during excavation of the University Link light rail tunnel project (U230) in Seattle Washington. Impact-response testing of the TBM indicated that significant signal over a wide range of frequencies transfers from the cutterhead where vibrat...