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Trailer on flatcar, also known as TOFC or piggyback, is the practice of carrying semi-trailers on railroad flatcars. TOFC allows for shippers to move truckloads long distances more cheaply than can be done by having each trailer towed by a truck, since one train can carry more than 100 trailers at once. [ 1 ]
The PiggyBac (PB) transposon system employs a genetically engineered transposase enzyme to insert a gene into a cell's genome. It is built upon the natural PiggyBac (PB) transposable element (transposon), enabling the back and forth movement of genes between chromosomes and genetic vectors such as plasmids through a "cut and paste" mechanism.
Piggyback transportation refers to the transportation of goods where one transportation unit is carried on the back of something else. It is a specialised form of intermodal transportation and combined transport .
Piggybacking has become a widespread practice in the 21st century due to the advent of wireless Internet connections and wireless access points.Computer users who either do not have their own connections or who are outside the range of their own might find someone else's by wardriving or luck and use that one.
Flat wagons for piggyback services Class Type 1 with four axles, short Type 2 with four axles, long Type 4 with six axles Type 1 Pocket wagon Type 2 Kangourou wagon [5] Type 3 Wippenwagen; Class Sg[kk]mmss Sgjkkmmss Sgss Sgjss Saggrss Skss since 1980: Sdkms Skss Saass Pivot pitch 10.75 m 35 ft 3 + 1 ⁄ 4 in 11.30 m 37 ft 7 ⁄ 8 in 14.60 m
Truck trailers were first carried by railway before World War II, an arrangement often called "piggyback", by the small Class I railroad, the Chicago Great Western in 1936. The Canadian Pacific Railway was a pioneer in piggyback transport, becoming the first major North American railway to introduce the service in 1952. In the United Kingdom ...
No Tailgating sign at Apple Inc. office. In security, piggybacking, similar to tailgating, refers to when a person tags along with another person who is authorized to gain entry into a restricted area, or pass a certain checkpoint. [1]
A pipe support or pipe hanger is a designed element that transfer the load from a pipe to the supporting structures. The load includes the weight of the pipe proper, the content that the pipe carries, all the pipe fittings attached to pipe, and the pipe covering such as insulation .