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2. Permanent magnet motor - Wikipedia

   en.wikipedia.org/wiki/Permanent_magnet_motor

   A permanent magnet motor is a type of electric motor that uses permanent magnets for the field excitation and a wound armature. The permanent magnets can either be stationary or rotating; interior or exterior to the armature for a radial flux machine or layered with the armature for an axial flux topology.

3. Electromagnetic door holder - Wikipedia

   en.wikipedia.org/wiki/Electromagnetic_door_holder

   An electromagnetic door holder (electromagnetic door holder and release or hold-open device, sometimes informally called a mag hold open or electric doorstop) is a simple electromechanical mechanism which can be used to hold a fire door or security door open until given a signal to release.

4. Passive fire protection - Wikipedia

   en.wikipedia.org/wiki/Passive_fire_protection

   Fire-resistance rated wall assembly with fire door, cable tray penetration and intumescent cable coating. Passive fire protection (PFP) is components or systems of a building or structure that slows or impedes the spread of the effects of fire or smoke without system activation, and usually without movement. [1]

5. Weatherstripping - Wikipedia

   en.wikipedia.org/wiki/Weatherstripping

   Some of these doors receive custom weatherstripping at the factory. Pre-weatherstripped doors for private homes are usually made of fiberglass or a similar material and are shipped from the factory weatherstripped. The doors have a kerf in the door stop so that a foam, rubber, or vinyl strip can be placed inside for the door to rest against ...

6. Fire door - Wikipedia

   en.wikipedia.org/wiki/Fire_door

   The intumescent and smoke-seal bounding of fire doors should be routinely checked, as should the action of the door closer and latch. Some fire doors are held open by an electromagnet, which is typically wired to a fire alarm system. If the power fails or the fire alarm is activated, the coil is de-energized, and the door closes.

7. Restaurant Trends to Look Forward to in 2025, According to Chefs

   www.aol.com/restaurant-trends-look-forward-2025...

   Leading up to 2024, experts predicted the proliferation of Caesar salads, ranch dressing, and rooster-shaped pasta — and it all came to fruition, to varying degrees, over the last year in ...