The growth of many fungi, yeasts, bacteria, and viruses was inhibited by tannins. Tannins are found in many of the foods you eat, including fruits, teas, wine and edible grasses -- like corn. Tannin blocks the orifices of tiny cells in the body, which absorbs nutrient from eaten food.
The JFET is a Voltage Operated Transistor. In the N channel device, the N channel is sandwiched between two P type regions (the gate and the substrate) that are connected together electrically to form the gate. The N type channel is connected to the source and drain terminals via more heavily doped N+ type regions.
National Pipe Thread Taper (NPT) is a U.S. standard for tapered threads used on threaded pipes and fittings. AN Standards High-end racing and performance fuel delivery systems most frequently implement fuel lines and fittings manufactured to AN Standards. During WWII the US military set specification standards for fasteners and fluid fittings used on military equipment.