Abstract: A method includes: accessing a depth map, generated by a depth sensor arranged on a vehicle, including a set of pixels representing relative positions and radial velocities of surfaces relative to the depth sensor; correlating a cluster of pixels exhibiting congruent radial velocities with an object in the field of view of the depth sensor; aggregating the cluster of pixels into a three-dimensional object representation of the object; classifying the object into an object class based on congruence between the three-dimensional object representation and a geometry of the object class; characterizing motion of the object based on positions and radial velocities of surfaces represented by the cluster of pixels; and generating a motion command based on the motion of the object and a set of motion characteristics of the object class.

Abstract: Systems and methods for injecting a carbonate-based sacrificial material into a nuclear reactor containment for containment of molten corium in severe nuclear reactor accidents are disclosed. Molten corium can be quickly cooled and solidified by the endothermic decomposition of the sacrificial material.

Abstract: Systems and methods for injecting a carbonate-based sacrificial material into a nuclear reactor containment for containment of molten corium in severe nuclear reactor accidents are disclosed. Molten corium can be quickly cooled and solidified by the endothermic decomposition of the sacrificial material.

Abstract: Systems and methods for injecting a carbonate-based sacrificial material into a nuclear reactor containment for containment of molten corium in severe nuclear reactor accidents are disclosed. Molten corium can be quickly cooled and solidified by the endothermic decomposition of the sacrificial material.