Abstract: Health of electrochemical energy supply elements is determined from sensor data representing sensed parameters of the electrochemical energy supply elements. A model of a health parameter that is dependent on operational parameters derivable from the sensor data and on health of the electrochemical energy supply element is fitted over the sensor data. The distribution of the health parameter is modelled as a Gaussian Process having an overall kernel combining a first kernel modelling dependency on the operational parameters and a second, non-stationary kernel modelling degradation over time. Health metrics over time for respective electrochemical energy supply elements are derived, comprising values of the health parameter that are predicted by the fitted model in respect of a predetermined operating point of the operational parameters. The health parameter is informative of the health of the electrochemical energy supply element and may be used as an input variable to a machine learning classifier.

Abstract: Systems and methods for providing authentication of items such as goods, as they are passed through commerce and change ownership. As described herein, the systems and methods certify authenticity of product origin and provide proof of current ownership by creating a publicly verifiable live audit trail using digital signatures, asymmetric (public/secret) key cryptography, an item labeling system, and a mobile authentication client application to capture information about transactions related to an item, perform transactions and record transactions in conjunction with the back end servers.

Abstract: Systems and methods for providing authentication of items such as goods, as they are passed through commerce and change ownership. As described herein, the systems and methods certify authenticity of product origin and provide proof of current ownership by creating a publicly verifiable live audit trail using digital signatures, asymmetric (public/secret) key cryptography, an item labeling system, and a mobile authentication client application to capture information about transactions related to an item, perform transactions and record transactions in conjunction with the back end servers.