High Power Density Electrochemical Thermocells for Inexpensively Harvesting Low-Grade Thermal Energy.

Continuously operating thermo-electrochemical cells (thermocells) are of interest for harvesting low-grade waste thermal energy because of their potentially low cost compared with conventional thermoelectrics. Pt-free thermocells devised here provide an output power of 12 W m for an interelectrode temperature difference (ΔT) of 81 °C, which is sixfold higher power than previously reported for planar thermocells operating at ambient pressure.

In vitro stretches of the mitral valve anterior leaflet under edge-to-edge repair condition.

Mitral valve edge-to-edge repair (ETER) alters valve mechanics, which may impact efficacy and durability of the repair. The objective of this paper was to quantify stretches in the central region of the anterior leaflet of the mitral valve after ETER with a single suture and 6 mm suture. Sixteen markers, forming a 4x4 array, were attached onto the central region of the mitral valve anterior leaflet.

Effects of papillary muscle position on anterior leaflet stretches under mitral valve edge-to-edge repair.

Background And Aim Of The Study: The mitral valve edge-to-edge repair (ETER) procedure inevitably alters mitral valve leaflet mechanics. The study aim was to quantify the effects of papillary muscle (PM) position on stretches in the central area of the anterior leaflet after mitral valve ETER.

Methods: Sixteen markers of a 4x4 array were attached onto the central area of the mitral valve anterior leaflet.