Myringotomy minor procedure. Those requiring myringotomy usually have an obstructed or dysfunctional eustachian tube that is unable to perform drainage or ventilation in its usual fashion. Before the invention of antibiotics, myringotomy without tube placement was also used as a major treatment of severe acute otitis media (middle ear infection). The words myringotomy, tympanotomy, tympanostomy, and "tympanocentesis" overlap in meaning. The first two are always synonymous, and the third is often used synonymously. The core idea with all of them is cutting a hole in the eardrum to allow fluid to pass through it. Sometimes a distinction is drawn between myringotomy/tympanotomy
Human-body model primarily for manufacturing environments to quantify a integrated circuit to survive the manufacturing process. A similar standard, IEC 61000-4-2, is used for system level testing and quantifies protection levels for a real world ESD event in an uncontrolled environment. In both JS-001-2012 and MIL-STD-883H the charged human body is modeled by a 100 pF capacitor and a 1500 ohm discharging resistance. During testing, the capacitor is fully charged to several kilovolts (2 kV, 4 kV, 6 kV and 8 kV are typical standard levels) and then discharged through the resistor connected in series to the device under test. Human-body model