Power from wind or water current can be extracted using a horizontal or vertical axis turbine. Vertical axis turbines are capable of extracting power from wind or water current regardless of the ...

An evacuation has begun as tremors intensify in and around Japan's southern islands of Toshima village, Kagoshima Prefecture. NHK World's Shimakawa Eisuke offers his analysis on the tremors and the ...

Effective reading of a Dow Jones Chart starts with knowledge of the basic components that constitute such graphical illustrations of market data. The Dow ...

Many projects centered on new floating wind turbines as Vertical Axis Wind Turbines (VAWTs) whose advantages are magnified for offshore applications, are being developed to adapt the extraction of ...

Among studies applied to rivers, depth and width are important parameters for a suitable design. In this work, a numerical study of the wake in a horizontal-axis hydrokinetic turbine is performed, ...