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The article of record as published may be found at https://doi.org/10.1007/s41939-019-00057-y ; This paper investigated energy harvesting from ocean waves using an oscillating column (OC) and a triboelectric nanogenerator (TENG). First, preliminary tests were conducted for a TENG fabricated using copper alloy or pure copper and polytetrafluoroethylene (PTFE) tape. Then, an OC was designed and built with the pure copper TENG, which was tested previously. The final design was tested in a tow tank with a wave maker to demonstrate the OC–TENG system under simulated ocean waves. The study examined different parameters that influenced the power generation, i.e., the voltage of alternative currents, in order to determine what parameters are critical to higher power generation. ; Identified in text as U.S. Government work.

This article seeks to put the 1980 election in perspective, to discuss its significance for the future of US politics, and to estimate the likely impact of, and some possible reactions to the rapid shift of population, wealth, and political influence towards the west and south. Analysis of the 1980 election results shows a heavy defeat for the Democratic party and not merely for President Carter, but no positive mandate for conservatism. However, if a Democratic recovery were based only on Republicans over-estimating their support, it would be short-lived. For it to be lasting, the party needs to regain the intellectual initiative that it has lost, and to extend its appeal in the increasingly powerful sunbelt states. Mexican-Americans, being numerous, neglected, and strategically placed, form a likely target group. They may be harder to attract than Democratic optimists suppose.