Types of abstracts. There are two types of abstracts: descriptive and informative. They have different aims, so as a consequence they have different components and styles. There is also a third type called critical, but it is rarely used.
Samsung Galaxy Note 7 smartphone has been banned from all aircraft in the United States. The US Transportation Department and other agencies have banned passengers from carrying on the devices or putting them inside checked baggage during flights.
Airplane mode turns off the wireless features on your device so that you comply with airline regulations. When Airplane Mode is on, you'll see in the status bar of your screen or on your watch face. In Airplane Mode, these wireless features are turned off: Cellular (voice and data) Wi-Fi.