→ skos:prefLabel → "Elimination of 'stagnation zones'"@en
→ skos:note → "A 'stagnation zone' is an area of a flow where some part of it
is for a long time or permanently stagnant. As a result, the effective flow
capacity is reduced, as if there were leaks, although technically all of it
remains in the system. Consequently, the elimination of 'stagnant zones'
leads to an increase in the efficiency of useful flow by increasing the
completeness of its utilisation without increasing the overall
capacity."@en
→ skos:definition → "Transition from a flow that contains areas where some
part of the flow is for a long time or permanently stagnant to a flow that
is free of such areas."@en
→ skos:example → "The problem of cold-starting a car engine.<br/> It is known
that up to 70-80% of engine wear occurs during the so-called 'cold start'.
The thing is that during engine start in cold weather when lubricating oil
thickens, the oil pump does not have time to deliver it to the cylinders,
and at first the friction in the cylinder-piston pair occurs without any
lubrication, which naturally leads to increased wear. As you can see, there
is a typical 'stagnation zone' in the oil flow, which temporarily occurs
during a cold start. Indeed, there is technically enough oil in the system
but it is not being used for its intended purpose because it is stuck
somewhere on the way.<br/> It's clear that one struggles with this
phenomenon - e.g. with special additives in oil, or just by warming up the
engine at idling speed. It looks like there is no universal solution, but
surely sooner or later the trend will triumph, and it will be possible to
start right from the spot without fear for the engine."@en, "Road junction. In order to pass one traffic stream, you have
to stop the other. Formally, there is enough space on the road, but in fact
- behind the junction there is nothing, and in front of it there is a
congestion zone, i.e. a familiar traffic jam. In accordance with the trend,
such zones are eliminated, for example, by multi-level interchanges."@en