Abstract: A method is disclosed for producing photocatalytic coated ceramic granules. The method involves providing a coatable composition containing an inorganic binder and a variety of photocatalytic particles, such as TiO2, ZnO, Ti(OH)4, doped derivatives, or combinations thereof. These photocatalytic particles have a surface area per weight of no more than 15 m2/g. The coatable composition is then applied to uncoated base ceramic granules, resulting in intermediate coated granules. Finally, the intermediate coated granules are heated at a temperature of at least 700° C., leading to the formation of photocatalytic coated ceramic granules. These granules exhibit a Total Solar Reflectance (TSR) value of at least 0.7. This method offers an efficient and effective way to produce ceramic granules with enhanced photocatalytic properties.

Abstract: A cardiac mapping system simulator comprising a microprocessor for simulating the electrical signal propagation of a heartbeat as it moves across the surface of a heart. A series of impulses that mimic the electrophysiological waveform are generated forming a two-dimensional map depicting heart activity. The series of pulses are generated in accordance with predetermined patterns and applied to the inputs of a cardiac mapping system or electrophysiology (E.P.) lab equipment in order to assess the operating condition of the cardiac mapping system or E.P. lab equipment prior to use on patients.