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The replacement documents include DI-MGMT-81650 (Integrated Master Schedule), DI-MGMT-81334A (Contract Work Breakdown Structure) and DI-MGMT-81466 (Contract Performance Report). [ 14 ] [ 15 ] [ 16 ] In addition DFARS 252.242–7001 and 252.242–7002 provide guidance for integrating IMP/IMS with Earned Value Management .
An electric fence is a barrier that uses electric shocks to deter people and other animals [note 1] from crossing a boundary.
Nofence is a Norwegian company that makes GPS collars for farm animals (cattle, sheep, and goats) that discourage them from crossing virtual fences. [1] [2] Oscar Hovde Berntsen has been working on the idea of virtual fencing, as an alternative to fixed electric fencing, since the 1990s. [3] Nofence was incorporated in 2011. [3]
A pet fence or radio fence, is an electronic system designed to keep a pet or other domestic animal within a set of predefined boundaries without the use of a physical barrier. A mild electric shock is delivered by an electronic collar if its warning sound is ignored. The system was first invented and patented by Richard Peck in 1973. [1]
U.S. patent 167,240 – Jacob Haish, DeKalb, Illinois, Improvement in Wire-fence Barbs – "single piece of wire bent into the form of the letter S" so that both strands are clasped (1875) U.S. patent 185,346 – John Nelson, Creston, Illinois, Improvement in Wire-fence Barbs – barb installable on existing fence wire, (1876)
A fence is a structure that encloses an area, typically outdoors, and is usually constructed from posts that are connected by boards, wire, rails or netting. [1] A fence differs from a wall in not having a solid foundation along its whole length. [2] Alternatives to fencing include a ditch (sometimes filled with water, forming a moat).