An object of the present invention is to provide an element for SPR measurement without the need of a mechanical solution-sending mechanism. In one particular embodiment, an image is transformed and spam is detected based on such a transformed image. Each nozzle arrangement includes a nozzle chamber structure that is positioned on the substrate to define a nozzle chamber in fluid communication with an ink supply channel and an ink ejection port in fluid communication with the nozzle chamber. The circuit further has a pre-distorting unit for pre-distorting the pre-linearized signal using complex pre-distortion coefficients, such that the distortion introduced by the non-linear transmission characteristic of the power amplifier is substantially compensated for according to magnitude and phase. Data of the equipment, the associated instrument, and the safe operating limit for the equipment is defined in a limit sequence of the software application. The metal tube may have a pattern of apertures through which the hollow core and the polymeric outer jacket are adhered to each other.