A fluid line connector to establish fluid communication with a conventional male luer fitting. In a particular embodiment, the mobile phase passing through the chromatographic column is maintained in a substantially adiabatic environment. Each of the subsidiary signals yi may be generated based on a corresponding one of a plurality of data stream signals. A management protocol for managing an image data file including the image data is interpreted by a second entity which executes processing for a second hierarchic layer of the communication protocol which is lower than the first hierarchic layer. The controlled growth DAG conveys information about objects captured by a capture system. Each queue is configured to store one or more sets of data, each set of data being associated with an event to be processed.