A stage device includes a stage and a frame-shaped member that move in three degrees of freedom directions in a two-dimensional plane while floating above a surface plate. The vacuum source comprises a control system adapted to detect the consumed airflow, and to control the operation of each of the first and second vacuum pump based on the detected airflow. Also provided by the invention are tissue cultures of the soybean variety A1024238 and the plants regenerated therefrom. If not, the HNB GW performs access control and rejects the connection attempt if authorization fails.