An autorack rail road car has an underframe having a main deck, and a rack mounted to the underframe. The thrust plate further includes a plurality of cooling slots formed in a first surface of the body. A stream manager may determine whether a dynamic connection exists at a first stream operator. The detection parameter may also be determined from the estimated probability of transmission values. The invention also concerns a method for preparing said membranes and their use for filtering. The image processing unit converts colors of the object in the photographic image, taking the color sample specified by the color sample specifying unit as a reference.