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  2. The 20 Best Orthopedic Shoes for Women, According to Experts

    www.aol.com/20-best-orthopedic-shoes-women...

    Kuru Footwear Atom Women’s Shoes. Best Orthopedic Shoes for Plantar Fasciitis . Sizes: 5 to 12, Medium, Wide. Colors: 9 color options . Special Features: Molds to your foot for a custom fit ...

  3. Process duct work - Wikipedia

    en.wikipedia.org/wiki/Process_Duct_Work

    See above photo of round duct elbows, transitions, and stiffeners. The duct elbow radius is from 1 1/2 to 2 times the duct diameter. The round duct has ovaling, and shipping rings at 20 foot nominal spacing, and larger support rings at supports. The Y split has suction stiffeners at the duct intersection.

  4. Toe box - Wikipedia

    en.wikipedia.org/wiki/Toe_box

    Shoes with a variety of toe boxes. The toe box is the section of footwear that surrounds the toes on closed-toe shoes. [1] Toe boxes that are too tight can cause injuries and foot deformities, whereas wider toe boxes may be used to treat or prevent common foot conditions such as broken toes, [2] [3] bunions, [4] [5] and Morton's neuroma. [6]

  5. Heat recovery ventilation - Wikipedia

    en.wikipedia.org/wiki/Heat_recovery_ventilation

    Diagramatic operation of a thermal wheel Ljungström Air Preheater by Swedish engineer Fredrik Ljungström (1875–1964). A thermal wheel, also known as a rotary heat exchanger, or rotary air-to-air enthalpy wheel, energy recovery wheel, or heat recovery wheel, is a type of energy recovery heat exchanger positioned within the supply and exhaust air streams of air-handling units or rooftop ...

  6. Pressurisation ductwork - Wikipedia

    en.wikipedia.org/wiki/Pressurisation_ductwork

    There are two means of providing fire-resistance rated ductwork: Inherently fire-resistant, or proprietary factory assembled ducts which are made of sheet metal shells filled with mixtures of rockwool, fiber and silicon dioxide

  7. Duct (flow) - Wikipedia

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

    A duct with less than 0.75 mg/100m 2 is considered to be clean, per the NADCA standard. [7] A Hong Kong standard lists surface deposit limits of 1g/m 2 for supply and return ducts and 6g/m 2 for exhaust ducts, or a maximum deposit thickness of 60 μm in supply and return ducts, and 180 μm for exhaust ducts. [8]

  8. Johnston & Murphy - Wikipedia

    en.wikipedia.org/wiki/Johnston_&_Murphy

    This factory was later expanded to nearly twice its size in 1925. [3] In 1895, Murphy sold his interest in the company to Herbert P. Gleason, a former top salesman of the company. Gleason knew the value of a recognized brand name and decided to keep the Johnston & Murphy name as well as establish a national sales and marketing force.

  9. Derby shoe - Wikipedia

    en.wikipedia.org/wiki/Derby_shoe

    A derby (UK: / ˈ d ɑːr b i / ⓘ DAR-bee, US: / ˈ d ɜːr b i / DUR-bee; also called gibson [1]) is a style of boot or shoe characterized by quarters, with shoelace eyelets, that are sewn on top of the vamp. [2] This construction method, also known as "open lacing", contrasts with that of the Oxford shoe. [citation needed]