High Speed LANs – CSMA/CD based
Introduction In the preceding lesson we have seen that high-speed LANs have emerged broadly into three types - based on token passing, successors of Ethernet and based on switching technology.…
How much bigger can container ships get?
The world's cargo ships are getting big, really big. No surprise, perhaps, given the volume of goods produced in Asia and consumed in Europe and the US. But are these…
Fault Tolerance
FDDI provides a number of fault-tolerant features. In particular, FDDI's dual-ring environment, the implementation of the optical bypass switch, and dual-homing support make FDDI a resilient media technology. Dual Ring…
No more flares on life boats —Laser device maker hopes its products will replace flares
“Slowly move the laser back and forth across your target.” At 16 miles, the beam is some 6,000 feet wide,the laser has a 72-hour burning life on two AA batteries. The company recommends…
Token Bus (IEEE 802.4)
Token BUS: A Brief History Although Ethernet was widely used in the offices, but people interested in factory automation did not like it because of the probabilistic MAC layer protocol.…
ABB’s Amazing Container Crane Remote Control
There will be no more manual operated cranes.....To know more read and wath the video at the end of post......... As ships grow bigger & cranes taller, a key…
IEEE Ring LANs
Introduction In the preceding lesson we have mentioned that for the fulfilment of different goals, the IEEE 802 committee came up with a bunch of LAN standards collectively known as…
LNG Bunker Barge for large volumes
Design study developed by NLI Solutions, Rolls-Royce and Wilhelmsen Technical Solutions. Offshore oil and gas engineering specialist NLI Solutions (NLI) has developed a concept for a LNG Bunker Barge based on…
IEEE 802.3 and Ethernet
Ethernet - A Brief History The original Ethernet was developed as an experimental coaxial cable network in the 1970s by Xerox Corporation to operate with a data rate of 3…
Nigerian survives two days at sea, in underwater air pocket
Jed Chamberlain, from DCN Global diving company, describes how Harrison Okene (pictured) was rescued A Nigerian man has survived for two-and-a-half days trapped 30m (98ft) deep in freezing seawater. Harrison…
