→ skos:prefLabel → "Eliminating of 'bottle necks'"@en
→ skos:note → "A 'bottle neck' is an area of the flow with sharply increased
resistance. Obviously, eliminating such areas greatly increases
conductivity."@en
→ skos:definition → "Transition from a flow containing areas of resistance
much greater than the path resistance, to a flow free of such areas."@en
→ skos:example → "filters that prevent allergy-causing particles from reaching
the nasal mucosa. <br/> While good at trapping allergens, they have proven
to be a serious obstacle to air (a typical 'bottle neck') - it is so
difficult to breathe through them that such filters have not been widely
used.<br/> Therefore, in line with the trend, the company GEN3 has developed
anti-allergen nasal inserts working on the cyclone principle.<br/> In these
inserts, the swirling air flow causes the particles suspended in the air to
be ejected by centrifugal force to the walls and adhere to the non-drying
glue-coated surface; the air itself flows freely, experiencing almost no
additional resistance. This eliminates the bottle neck."@en