Abstract: A method for assessing and/or reducing artifacts arising from reconstruction of magnetic particle imaging (MPI) total image data set (c(r)) from MPI signal data (s(f), u(t)) using an appended system matrix (SM_AB) comprises: a) reconstructing signal data (s(f), u(t)) using appended system matrix (SM_AB) derived from at least two system matrices (SM_A, SM_B) for generating input image data (cin(r)); b) selecting at least one voxel as selected voxel from the input image data (cin(r)) for generating output image data (cout(r)); c) determining eigen-reconstruction signal data sen(f) by selecting one or more line entries of the appended system matrix (SM_AB) that correspond to the selected voxel(s); d) reconstructing eigen-reconstruction signal data se(f) using the appended system matrix (SM_AB) for generating eigen-reconstruction image data ce(r); and e) subtracting the eigen-reconstruction image data ce(r) or weighted eigen-reconstruction image data ce?(r) from the input image data cin(r) for generating updat

Abstract: The production plant for bulk goods essentially includes a feed side for raw material, a processing unit for the material and a removal side for the processed products. In plants with a high output, the individual units of the plant run at a very high speed, causing wear and, as a result, disruptions to the process. It is therefore the object to step down the plant units running at a particularly high speed without thereby reducing the output. In the illustrative case of a plant for producing cotton sticks, this object is achieved by reducing the speed on the primary side and increasing the loading. When the speed of the primary chain is halved and the loading of blanks and wads is doubled, the same output is achieved with a significantly more moderate speed.