The maintenance management device 3 includes an error status diagnosis unit 11, a grace period estimation unit 14, a maintenance cost estimation unit 15, and a screen display unit 17. The IC factory comprises a factory stocker, a plurality of process bays and a factory transport agent for moving wafer cassettes between the bay and the stocker. Also provided by the invention are tissue cultures of the soybean variety D2011907 and the plants regenerated therefrom. The cap defines an annular groove located radially outward of the bore. The radiation may be applied either by single pulses with a duration of not more than 10 ms, or by a packet of several nanosecond pulses the duration of which does not exceed 10 ms. 6,111,770, herein incorporated by reference.