Abstract: Embodiments for identifying, characterizing, and controlling polymer degradation processes, particularly during electrical tracking tests and accelerated polymer aging evaluations. The embodiments may utilize digital imaging and related technologies coupled with real-time signal correlation to spatially, spectrally, and temporally characterize polymer discharge events and dry-band formation, enabling detailed diagnosis of polymer degradation stages and failure mechanisms. The embodiments further include dynamic feedback control of polymer test parameters based on comparison against stored reference degradation profiles, thus facilitating consistent and repeatable outcomes in accelerated degradation assessments.

Abstract: A hidden and wearable breast-milk pumping system includes a pumping unit, a collecting unit and a wireless control unit. The pumping unit includes a pumping module and an attaching layer configured for attaching to a breast. The pumping module includes a nozzle, a pumping chamber, a pumping tube connected to the pumping chamber and a milk tube. The nozzle covers the breast and connects the pumping chamber connected between the nozzle and the milk tube. The collecting unit is connected to the milk tube to collect and store the breast milk in the milk tube. The wireless-control unit includes a control module, a vacuum pump and a wireless module. The vacuum pump is connected to the pumping tube. The control module controls the vacuum pump according to a control signal received by the wireless module from a remote device.