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Doors should generally open outwards to provide additional security against the impact of the sea. See also Bow doors, Flood control doors.
A dopant, also called a doping agent, is a trace of impurity element that is introduced into a chemical material to alter its original electrical or optical properties.
A small portable instrument used to measure and record the total accumulated personal dose of ionizing radiation.
Radiation dosimetry in the fields of health physics and radiation protection is the measurement, calculation and assessment of the ionizing radiation dose absorbed by an object, usually the human body.
A new concept of artic transport based on the principle of a barge being pushed by a dedicated pusher tug in open water and pulled through the ice by specially designed icebreaking tug.
During winter tests of the Artic tanker UIKKU, it was found that a ship with an Azipod and well designed stern generally performs much better in heavy ice condition when going astern.
Compartments at the bottom of a ship between the inner bottom and the shell plating. SOLAS 2009 specifies in detail requirements for fitting a double bottom...
The shell plating with stiffeners below the top of the inner bottom and other elements below and including the inner bottom plating.
A double-acting cylinder is a cylinder in which the working fluid acts alternately on both sides of the piston.
An important new stage in the advance of the Finnish double-acting concept has been reached with the handover by Aker Finnyards to the Russian Far Eastern Shipping Co of the combined icebreaker/offshore supply/support ship FESCO SAKHALIN.
Two innovative 106,000 dwt crude carriers TEMPERA and MASTERA were built by the Yokosuka shipyard of Sumitomo Heavy Industries Ltd. for the Finnish group Fortum Oil...
A double-circuit transmission line carries conductors two circuits
According to the Ferry Technology October 2005 In 2005 the Polish shipyard Remontowa SA delivered a 116m double-ended ferry BASTØ III to the Norwegian owner, Bastø Fosen.
According to Ferry Technology, December 2007/January 2008 Towards the end of 2007 the first of three new Coastal-class double-enders left Flensburger Schiffbau-Gesellschaft for British Columbia in Canada.
A small piece of plate attached to a larger area of plate that requires strengthening in that location. Usually at the attachment point of a stiffener. Also, a flat plate welded to a plated structure that has suffered damage.
Hatch cover panel in which both top and bottom surfaces are plated-in.
Doubly-fed electric machines also slip-ring generators are electric motors or electric generators, where both the field magnet windings and armature windings are separately connected to equipment outside the machine.
A nonstandard term for flat welding position.
A term used to describe tools, equipment, and instruments used in the wellbore, or conditions or techniques applying to the wellbore.
A downhole heat exchanger, also called a borehole heat exchanger, is a heat exchanger installed inside a vertical or inclined borehole. It is used to capture or dissipate heat to or from the ground.