The ship length for which the midship section is constant in area and shape.

An innovative gantry-type shipboard crane developed by Wijnne & Barends for the handling of forest products and containers.

The anti-heeling system developed by the German company Intering™ to prevent the build-up of parametric rolling in head or following seas.

A ship in longitudinal seas experiences a completely different shape of the underwater volume as compared with the ship in calm water and in beam seas.

The stability moment of a ship is the product of the righting lever and the total weight. In head or following seas, the righting lever varies periodically due to the changing wave elevation around the ship and her pitch motion.

In electrical networks, a parasitic element is a circuit element (resistance, inductance or capacitance) that is possessed by an electrical component but which it is not desirable for it to have for its intended purpose.

With regard to electricity production, parasitic loss it is any of the loads or devices powered by the generator, not contributing to net electric yield found by subtracting productive yield from gross yield.

Device used to achieve lateral separation for In-Sea Equipment towed from a seismic vessel.

The Paris Agreement is an agreement within the United Nations Framework Convention on Climate Change (UNFCCC), on climate change mitigation, adaptation, and finance, signed in 2016.

In a mixture of gases, each constituent gas has a partial pressure which is the notional pressure of that constituent gas if it alone occupied the entire volume of the original mixture at the same temperature.

Hatch covers without sealing between comings and panels and with non-weatertight gaps between panels.

A particle accelerator is a machine that uses electromagnetic fields to propel charged particles to very high speeds and energies, and to contain them in well-defined beams.

Particle physics is a branch of physics that studies the nature of the particles that constitute matter and radiation.

Waste products from the combustion process that is emitted with flue gases, water and solids.

Particulates are microscopic particles of solid or liquid matter suspended in the air.

A complex mixture of inorganic and organic substances comprising mainly soot (elemental carbon), nitrates, carbonates and a variety of non, or partially, combusted hydrocarbon components of the fuel and lubricating oil.

In science and engineering, the parts-per notation is a set of pseudo-units to describe small values of miscellaneous dimensionless quantities, e.g. mole fraction or mass fraction.

The pascal is the SI derived unit of pressure used to quantify internal pressure, stress, Young's modulus, and ultimate tensile strength.

Pascal's law or the principle of transmission of fluid-pressure) is a principle in fluid mechanics given by Blaise Pascal that states that a pressure change at any point in a confined incompressible fluid is transmitted throughout the fluid such that the same change occurs everywhere.

A person on board a vessel at sea who is neither the master, a member of the crew nor engaged in any way in the business of the ship. A child under one year of age is not considered to be a passenger.