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2. Duct (flow) - Wikipedia

   en.wikipedia.org/wiki/Duct_(flow)

   Flexible duct is very convenient for attaching supply air outlets to the rigid ductwork. It is commonly attached with long zip ties or metal band claps. However, the pressure loss is higher than for most other types of ducts.

3. Electrical conduit - Wikipedia

   en.wikipedia.org/wiki/Electrical_conduit

   Flexible metallic conduit used in an underground parking facility. Flexible conduits are used to connect to motors or other devices where isolation from vibration is useful, or where an excessive number of fittings would be needed to use rigid connections. Electrical codes may restrict the length of a run of some types of flexible conduit.

4. Diffuser (thermodynamics) - Wikipedia

   en.wikipedia.org/wiki/Diffuser_(thermodynamics)

   Ducts containing fluids flowing at low velocity can usually be analyzed using Bernoulli's principle. Analyzing ducts flowing at higher velocities with Mach numbers in excess of 0.3 usually require compressible flow relations. [2] A typical subsonic diffuser is a duct that increases in area in the direction of flow. As the area increases, fluid ...

5. Air sock - Wikipedia

   en.wikipedia.org/wiki/Air_sock

   Air socks are also easier to clean than rigid ducting because they can be dismounted and cleaned using a washing machine, whereas rigid ducting cannot be removed easily and is generally not as accessible for cleaning, requiring special tools and maneuvering for cleaning; this leads to the ducts not being cleaned, or being cleaned less often. [1 ...

6. Duct (industrial exhaust) - Wikipedia

   en.wikipedia.org/wiki/Duct_(industrial_exhaust)

   Industrial exhaust ducts are pipe systems that connect hoods to industrial chimneys through other components of exhaust systems like fans, collectors, etc. Ducts are low-pressure pneumatic conveyors to convey dust, particles, shavings, fumes, or chemical hazardous components from air in the vicinity to a shop floor or any other specific locations like tanks, sanding machines, or laboratory hoods.

7. Liberal leaders say they have a plan for a new, more ... - AOL

   www.aol.com/liberal-leaders-plan-more-effective...

   The question has loomed over Democrats and their allies since Donald Trump was elected to a second term: Do party leaders and liberal, pro-democracy activists have the juice to launch a passionate ...