Abstract: An alert apparatus and related systems. The alert apparatus includes a controller and a wireless receiver connected to the controller and configured to receive data from a transmitter. The alert apparatus includes a packaging containing the controller and receiver and a visual indicator connected to be controlled by the controller and visible from outside of a vehicle on which the alert apparatus is mounted. The visual indicator is controllably activated by the controller based on the received data, and the alert apparatus is mounted on a windshield of the vehicle.

Abstract: An alert apparatus and related systems. The alert apparatus includes a controller and a wireless receiver connected to the controller and configured to receive data from a transmitter. The alert apparatus includes a packaging containing the controller and receiver and a visual indicator connected to be controlled by the controller and visible from outside of a vehicle on which the alert apparatus is mounted. The visual indicator is controllably activated by the controller based on the received data, and the alert apparatus is mounted on a windshield of the vehicle.

Abstract: A nanocomposite material for use as an electromagnetic wave or radio frequency absorber or as a filter to trap or remove heavy metals. The nanocomposite material may be made with a one-pot synthesis, or thermodecomposition process, of magnetic graphene nanocomposites decorated with core-double-shell nanoparticles, wherein the double shell iron nanoparticles may comprise a crystalline iron core, an inner iron oxide layer around the crystalline iron core, and an outermost amorphous Si—S—O compound shell around the iron oxide layer.

Abstract: A driver alert apparatus and related systems. The driver alert apparatus includes a controller and a wireless receiver connected to the controller and configured to receive data from a transmitter. The driver alert apparatus includes an at least partially transparent packaging containing the controller and receiver. The driver alert apparatus includes a speaker and visual indicator connected to be controlled by the controller, such that the speaker and visual indicator are controllably activated by the controller based on the received data.

Abstract: A driver alert apparatus and related systems. The driver alert apparatus includes a controller and a wireless receiver connected to the controller and configured to receive data from a transmitter, The driver alert apparatus includes an at least partially transparent packaging containing the controller and receiver. The driver alert apparatus includes a speaker and visual indicator connected to be controlled by the controller, such that the speaker and visual indicator are controllably activated by the controller based on the received data.