A method of continuous real-time monitoring and positioning of multi-leaf collimators during on and off radiation exposure conditions of radiation therapy to account for target motion relative to a radiation beam is provided. The shaped adsorbent article has one or more projections extending from a surface of the article toward the housing to provide for flow of fluid between the shaped adsorbent article and the housing. At the start of a working movement of a first tool part of the machine tool, the extent of the protected field in the direction of the working movement is smaller than the extent of the open gap between the tool parts. Each preference profile contains a number of preference attributes. The common mode control circuit includes a first terminal connected to the current source and a second terminal connected to the current sink. Also, a polymer including at least two of the proton conductors that are connected by a linking molecule.