A peninsula jutting into Guatemala’s Lake Petén Itzá is the site of the ancient Maya city of Nixtun-Ch’ich’. (Courtesy Timothy Pugh/Itza Archaeological Project) For years, archaeologist Timothy Pugh ...
Abstract: Schlieren imaging is an optical technique to observe the flow of transparent media, such as air or water, without any particle seeding. However, conventional frame-based techniques require ...
Abstract: This paper presents the computation of optimized pulse patterns (OPPs) for converters connected to the grid via LCL filters. The computed OPPs account for distortions in the grid, such as ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results