Abstract:
A technique for determining blood flow in a living body by changing the thermal energy level by a predetermined amount at a site in a blood flow path and detecting temperatures at locations upstream and downstream of the site. The temperature difference at such locations is determined and the blood flow is calculated as a function of the change in energy level and of the temperature differences measured prior to and following the change in energy level.
Abstract:
A pyrolysis gasifier includes a first auger (26) which moves carbon from a carbon collection tank (24) through an air lock valve (30) to a carbon holding tank (28). The gasifier includes an inner cylindrical sleeve (80) which is configured such that there is a small air gap between it and an interior wall of the gasifier (16). The air lock valve (30) includes an inlet member (96) which connects the housing to a connecting tube from the first auger (26). A plate (100) within the housing is mounted such that in a closed position, the plate is sealingly positioned against a lower edge of the inlet member (96), while in an open position, the plate is away from the inlet member, permitting carbon to move into the carbon holding tank. A fuel spreader apparatus (53) is positioned at the top portion of the gasifier. It includes a stirring rod (44) and two opposed fuel paddle assemblies (67, 69) at the lower end thereof to spread the fuel over the cross-sectional area of the gasifier.
Abstract:
A technique for determining blood flow in a living body by changing the thermal energy level by a predetermined amount at a site in a blood flow path and detecting temperatures at locations upstream and downstream of the site. The temperature difference at such locations is determined and the blood flow is calculated as a function of the change in energy level and of the temperature differences measured prior to and following the change in energy level.