An AC adapter, AC/DC adapter, or AC/DC converter is a type of external power supply, often enclosed in a case similar to an AC plug.Other common names include plug pack, plug-in adapter, adapter block, domestic mains adapter, line power adapter, wall wart, power brick, and power adapter.Adapters for battery-powered equipment may be described as chargers or rechargers (see also battery charger).ther common names include plug pack, plug-in adapter, adapter block, domestic mains adapter, line power adapter, wall wart, power brick, and power adapter. Adapters for battery-powered equipment may be described as chargers or rechargers (see also battery charger).
How are a PhD and Professional Doctorate Different? In a PhD program, you'll focus your research on contributing new knowledge and theory to the body of knowledge in your field. In a professional doctorate program, you'll focus your research on the practical application of knowledge and theory that already exists within your field.
Research and professional are two types of doctoral degrees. A research doctorate is granted when a thesis in a discipline of research is completed. The most general type of research doctoral degree is the doctor of philosophy, or PhD.