The excitable gap of a reentrant circuit has both temporal (time during the cycle length that the circuit is excitable) and spatial (length of the circuit that is excitable at a given time) properties. We determined the temporal and spatial properties of the excitable gap in reentrant circuits caused by nonuniform anisotropy. Myocardial infarction was produced in canine hearts by ligation of th...

Flat-band topologies and localizations in noninteracting systems are extensively studied different quantum classical-wave systems. Recently, the exploration on novel physics of flat-band interacting has aroused great interest. In particular, it is theoretically shown that strong interaction could drive formation nontrivial topological flat bands; even dispersive trivial bands dominate single-pa...

h WITH THIS LAST D&T issue of 2014, we welcome our readers to a topic we have yet to cover: millimeter wave (mm-wave) and subterahertz (sub-THz) circuits. We are excited to bring this focused and timely issue before you, with the goal of highlighting some of the most trailblazing solutions to contemporary challenges in the design and test of mm-wave and sub-THz circuits/systems. The wide applic...

The mixed-signal circuits with both analog and digital blocks on a single chip have wide applications in communication and RF circuits. Integrating these two blocks can cause serious problems especially in applications requiring fast digital circuits and high performance analog blocks. Fast switching in digital blocks generates a noise which can be introduced to analog circuits by the common su...