3 A B C D E F G H I J K L M N O P Q R S T U V W Y
Un Up

Universal Product Code

Universal Product Code (UPC) is a barcode designed to conform to a globally accepted standard and provides a mechanism for recognising products. The 12 digit number in the UPC defines a product according to one part of the Global Trade Item Number (GTIN) – a set of standards that enable a wide range of products to be identified.

Unmanned Aerial Vehicles

A Unmanned Aerial Vehicles (UAV) is an aircraft (such as a drone) with no pilot on board.  UAVs come in two varieties:

  • controlled from a remote location
  • flying autonomously.

Autonomous flight continues to develop from pre-programmed flight plans towards flight and decisions derived automatically from specification of a task or objective. Military UAVs perform reconnaissance as well as attack missions. UAVs are also used in a small but growing number of civil applications, such as firefighting and crop spraying.

Unmanned Combat Air Vehicle

An unmanned combat air vehicle (UCAV) or “”combat drone”” is an experimental class of UAV. A UCAV differs from ordinary UAVs, because it is designed specifically to attack targets. Current UCAV concepts call for an aircraft which would be able to operate virtually autonomously. It would be programmed with route and target details, and would be able to conduct the mission without help from human controllers

Upstream Operations

In the oil and gas sector, upstream operations is the term for all activities needed to find reserves, and bring them to the surface. This involves, exploration, securing leases and permits, developing the reserve into a productive field, and operating the field.