The invention relates to a carbon nanofiber containing at least iron and vanadium, wherein the iron is present in an amount of 6 mass % or less and the vanadium is present in an amount of 3 mass % or less as a metal element other than carbon, wherein a graphite plane is inclined to the fiber axis. The temporary storage region and the first sheet-feeding mechanism are configured such that in a simplex feeding mode a sheet from the first sheet-feeding path is transferred to the sheet output tray through the temporary storage region, and in duplex and simplex feeding modes the sheets in the sheet output tray are arranged in the same order as in the sheet input tray. Another sediment control barrier is proposed having a graded permeability from a first, lower, non-zero permeability adjacent the ground contacting surface to a second, higher, permeability away from the ground contacting surface. The processor may determine the impact of elements in the technology system based on the metrics information related to the types of metrics and the relationship information. The invention also relates to a cloth comprising said lotion.