Abstract: A speaker identification system and method to identify a speaker based on the speaker's voice is disclosed. In an exemplary embodiment, the speaker identification system comprises a Gaussian Mixture Model (GMM) for speaker accent and dialect identification for a given speech signal input by the speaker and an Artificial Neural Network (ANN) to identify the speaker based on the identified dialect, in which the output of the GMM is input to the ANN.

Abstract: A mechanical lock box comprising a housing including a lid and a hook fastener attached to the lid and a 3D multi-level printed maze. A release chamber is located within the maze and a ball is enclosed in the maze. The mechanical lock box further includes a hook bar having a first hook bar end which pivotally connects to a pivot box in the maze and a second hook bar end having a lock hook configured to engage with the hook fastener to hold the lid in a locked position. A hook pusher is configured to pivot the hook bar to unlock the lid when the ball pushes against the hook pusher.

Abstract: An educational tool for testing and demonstrating center of gravity based control. The educational tool includes a swing, a rod assembly operatively connected to the swing, a motor operatively connected to the rod assembly, at least one encoder for generating position signals, an interface box operatively connected to the motor and the encoder, and a computing device operatively connected to the interface box. The computing device receives the position signals from the interface box, analyze the position signals to determine a center of gravity of the swing and the rod assembly, and generate motor control signals to adjust the swing and the rod assembly to a stable pose. The interface box transmits the motor control signals to the motor and transmits the position signals from the encoder to the computing device.