A novel approach is provided for avoiding the \u201cslow-start restart\u201d in TCP communications when network conditions dictate such. The system provides a buffer for storing data in a file region accessed by all the processes based on the hint information, such that the IO processing for all the processes is performed using this buffer. The serum transfer cup has a higher elevation in the 13 mm sample tube than in the 16 mm sample tube, and the different flange heights can be detected using ultrasonic signals. A program runs on the central processor. The liquid crystal display further includes a plate electrode electrically connected to the switching element and including a plate that overlaps the pixel electrode, wherein the pixel electrode spans a larger area than the plate.