The Radio Regulations annexed to, or regarded as being annexed to, the most recent International Telecommunication Convention which is in force at any time, (SOLAS).

Radioactive contamination, also called radiological contamination, is the deposition of, or presence of radioactive substances on surfaces or within solids, liquids or gases (including the human body), where their presence is unintended or undesirable.

Radioactive decay is the process by which an unstable atomic nucleus loses energy by radiation.

A radioactive source is a known quantity of a radionuclide which emits ionizing radiation; typically one or more of the radiation types gamma rays, alpha particles, beta particles, and neutron radiation.

Radioactive waste is a type of hazardous waste that contains radioactive material.

See "Radioactive decay"

A land- or lightship-based wireless telegraph station which transmits a regular schedule of signals, from which mobile receiving stations, such as that on board the ship, may take their bearings to determine its direction in relation to the beacon.

A workstation for operating and control of equipment for GMDSS distress and safety communications and general communication.

A nondestructive testing method which reveals internal defects in metal by exposing a film to X-rays or gamma rays passed through the metal.

A radioisotope is an atom that has excess nuclear energy, making it unstable.

A radioisotope thermoelectric generator is a type of nuclear battery that uses an array of thermocouples to convert the heat released by the decay of a suitable radioactive material into electricity.

1. The upper rounded edge of the bulwark. 2. A pipeline, usually containing fuel, which is maintained at a particular pressure or acts as a distribution manifold.

Built by HJ Barreras Shipyard in Vigo, Spain, the rail freight ferry ARATERE is intended for the Cook Strait between New Zealand’s North and South islands.

Lightweight covers introduced for the first time on hatchcoverless container ship NORASIA FRIBOURG.

A superstructure which extends forward from the aft perpendicular.

The departure from the vertical of any conspicuous line in profile such as a funnel, mast, stem contour, etc.

Rake of keel is defined as the height the keel raises from the after perpendicular to the fore perpendicular.

1. A hydraulically-operated piston which seals off a well when the blowout preventer is actuated. 2. The piston rod of a hydraulic cylinder as in a ram-type steering gear.

The concept of the triangular-shaped hull form with an extraordinary wide stern, developed by Roar Ramde and originally adopted for Norwegian Navy surveillance ships.

The RAMFORM TITAN delivered by the MHI shipyard in Nagasaki, is the most powerful and efficient marine seismic acquisition vessel ever built and, with a width at the stern of 70m, the widest ship in the world at the waterline.