Abstract: This invention relates to a thermally insulating substrate product comprising: a substrate having at least one layer and comprising metallic particles having an average particle size and density selected to block or reflect infrared radiation and aerogel particles having an average pore size and density selected to control conducted and convected thermal energy. The thermally insulating substrate can made as textile and/or film coatings that are light and thin and adapts to external environment conditions for better camouflage as well as improved heat insulation for energy conservation and thermal regulation.

Abstract: A method of estimating a topography of at least first and second parts of a body may involve: causing at least one processor circuit to receive at least one signal representing at least one measurement of deformation of at least a portion of the body; causing the at least one processor circuit to associate the deformation with relative positions of at least the first and second parts of the body; and causing the at least one processor circuit to produce at least one output signal representing the relative positions of at least the first and second parts of the body. Systems are also disclosed.