Disclosed is a fluid transfer system for transferring a substance from one vessel to another vessel while avoiding leakage of liquid and gas contaminants. In a particular method, the returned devices are sorted based on one or more procurement values, and presented to the designer in a ranked list. Speckle is suppressed through beam-path displacement\u2014by deflecting the beam during projection, thereby avoiding both absorption and diffusion of the beam while preserving pseudocollimation. The projection optical system is nonaxisymmetric and makes a central principle ray incident obliquely on the screen in the image projection. A sacrificial metal is disposed between the electrochemically active electrode and the inert electrode. The shielding electrode surrounds at least sections of an active cell array.