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  2. Ceiling fan - Wikipedia

    en.wikipedia.org/wiki/Ceiling_fan

    A pendulum fan or flap fan is a type of low velocity ceiling fan that can be used for air circulation around a targeted area. The back and forth motion increases turbulence around cooling sources, like chilled waterfalls at the Lavin Bernick Center at Tulane , helping to cool a greater volume of air.

  3. Old Town paper mill - Wikipedia

    en.wikipedia.org/wiki/Old_Town_paper_mill

    Old Town paper mill is 400,000 square-foot [1] paper mill on Portland Avenue [2] in Old Town, Maine [1] located adjacent to a 19th-century cemetery. [3] Four thousand feet of the site borders the Penobscot River, and the mill is located near the University of Maine. [1] In 2003, the mill employed 500 people; [1] in 2023 it had 199 workers.

  4. List of paper mills - Wikipedia

    en.wikipedia.org/wiki/List_of_paper_mills

    Astia Paper Mills Ltd. Base Papers Ltd. Haji Paper Industries Ltd. Capital Paper and Board Mills Ltd. Purbachal Paper Mills Ltd. Partex Paper Mills Ltd. Amber super and Board Mills Ltd. Makka Paper and Board Mills Ltd. Lina Paper Mills Ltd. Ajmatali Paper Mills Ltd. Raja Paper Mills Ltd. Kibria Paper Mills Ltd. Bhai bhai board Mills Ltd.

  5. Millstone - Wikipedia

    en.wikipedia.org/wiki/Millstone

    The basic anatomy of a millstone. This is a runner stone; a bedstone would not have the "Spanish Cross" into which the supporting millrind fits.. Millstones or mill stones are stones used in gristmills, used for triturating, crushing or, more specifically, grinding wheat or other grains.

  6. Prandtl–Meyer expansion fan - Wikipedia

    en.wikipedia.org/wiki/Prandtl–Meyer_expansion_fan

    The figure shows one such ideal expansion fan. A supersonic expansion fan, technically known as Prandtl–Meyer expansion fan, a two-dimensional simple wave, is a centered expansion process that occurs when a supersonic flow turns around a convex corner. The fan consists of an infinite number of Mach waves, diverging from a sharp corner. When a ...

  7. Building automation - Wikipedia

    en.wikipedia.org/wiki/Building_automation

    Building automation (BAS), also known as building management system (BMS) or building energy management system (BEMS), is the automatic centralized control of a building's HVAC (heating, ventilation and air conditioning), electrical, lighting, shading, access control, security systems, and other interrelated systems. Some objectives of building ...