A lubricating oil composition is disclosed which comprises a major amount of an oil of lubricating viscosity; one or more non-halogen-containing oil-soluble titanium complexes comprising at least one ligand comprising an anion of a carboxylic acid; one or more dispersants; and one or more detergents, wherein the lubricating oil composition is free of any zinc dialkyldithiophosphate. User networks connected to respective interfaces IF-A to IF-D are connected to the control function parts 41C1, 41C2 to which they are previously associated, thus implementing communications between a plurality of user networks with a single system. Additionally, the method includes directing the EM radiation through one of the first and second substrates and onto a region of the thin film until the first and second substrates are fused in the region. Another aspect provides a bioreactor having a plurality of gas permeable, closed-loop chambers for cell or tissue culture. The contact interface is moveable between a connection position, wherein the contact interface engages the wire, and a release position, wherein the contact interface is disengaged from the wire to enable the wire to be removed from the receptacle. Metered quantities of such particles are admitted into a stream of fragmentized tobacco leaves before the stream is draped into a web of cigarette paper or the like.