Abstract: A test probe inserted in a specific heat exchanger tube is used to produce test data of non-destructive testing of the specific heat exchanger tube. The test data of the non-destructive testing of the specific heat exchanger tube is accessed. A structural health assessment of the specific heat exchanger tube is determined, using the accessed test data of the non-destructive testing of the specific heat exchanger tube in comparison to calibration data from testing of at least one calibration standard heat exchanger tube that is more closely related to the specific heat exchanger tube than to a generic tube.

Abstract: Methods of identifying activators and inhibitors of voltage-gated ion channels are provided in which the methods employ electrical field stimulation of the cells in order to manipulate the open/close state transition of the voltage-gated ion channels. This allows for more convenient, more precise experimental manipulation of these transitions, and, coupled with efficient methods of detecting the result of ion flux through the channels, provides methods that are especially suitable for high throughput screening.