Abstract: A non-volatile integrated circuit NAND type flash memory device is provided that includes a select line driver and a slope control circuit. The select line driver supplies a string select line with a select voltage limited below a power supply voltage while a program voltage is supplied to a word line. The slope control circuit controls a rising slope of the program voltage such that a capacitive coupling does not arise between the string select line and a selected word line during a program operation. At this time, the select voltage that the select line driver supplies into the string select line is lower than the power supply voltage, and a difference between the select voltage and the power supply voltage is at least as much as a coupling voltage between the string select line and the selected word line. In addition, the program voltage that the slope control circuit supplies into the selected word line can be increased in a staircase form during the program operation.

Abstract: A barrel assembly for a pneumatic paintball gun includes a barrel body and a barrel insert. The barrel body has a breech end, a muzzle end, and a barrel bore extending longitudinally through the barrel body from the breech end to the muzzle end. The barrel insert has a breech end, a distal end, and an insert bore, and is configured to be removably housed within a breech portion of the bore of the barrel body. The breech end of the barrel body is configured to attach to a breech end of the paintball gun. The barrel insert collaborates with the barrel body to provide a firing bore for the barrel assembly which guides a paintball fired from the breech end of the gun through the barrel and out the muzzle end of the barrel body. The barrel insert can be constructed having a thin, flexible wall so as to permit lateral deformation of the barrel insert.