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  2. Manual handling of loads - Wikipedia

    en.wikipedia.org/wiki/Manual_handling_of_loads

    The NIOSH lifting equation is a tool (now application) that can be used by health and safety professionals to assess employees who are exposed to manual lifting or handling of materials. [7] The NIOSH lifting equation is a mathematical calculation which calculates the Recommended Weight Limit (RWL) using a series of tables, variables, and ...

  3. Ergonomics for manual material handling - Wikipedia

    en.wikipedia.org/wiki/Ergonomics_for_Manual...

    The National Institute of Occupational Safety and Health (NIOSH) lifting equation (1994) [1] provides guidelines for evaluating two-handed manual lifting tasks. It defines a Recommended Weight Limit (RWL) as the weight of the load that nearly all healthy workers can lift over a substantial period of time (e.g., eight hours) without an increased ...

  4. Material handling - Wikipedia

    en.wikipedia.org/wiki/Material_handling

    The NIOSH (National Institute for Occupational Safety and Health) 1991 Revised Lifting Equation [14] can be used to evaluate manual lifting tasks. Under ideal circumstances, the maximum recommended weight for manual lifting to avoid back injuries is 51 lb (23.13 kg).

  5. Lifting theory - Wikipedia

    en.wikipedia.org/wiki/Lifting_theory

    In mathematics, lifting theory was first introduced by John von Neumann in a pioneering paper from 1931, in which he answered a question raised by Alfréd Haar. [1] The theory was further developed by Dorothy Maharam (1958) [ 2 ] and by Alexandra Ionescu Tulcea and Cassius Ionescu Tulcea (1961). [ 3 ]

  6. Pallet jack - Wikipedia

    en.wikipedia.org/wiki/Pallet_jack

    Typical manual pallet jack (lowered) A pallet jack, also known as a pallet truck or pallet pump, is a tool used to lift and move pallets.Pallet jacks are the most basic form of a forklift [1] and are intended to move palletized loads within warehouses, distribution centers, retail stores, and construction sites.

  7. Lift (mathematics) - Wikipedia

    en.wikipedia.org/wiki/Lift_(mathematics)

    The morphism h is a lift of f (commutative diagram) In category theory, a branch of mathematics, given a morphism f: X → Y and a morphism g: Z → Y, a lift or lifting of f to Z is a morphism h: X → Z such that f = g∘h. We say that f factors through h.

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  9. Lifting - Wikipedia

    en.wikipedia.org/wiki/Lifting

    Lifting may refer to: Manual handling of loads; Raising objects upwards, for example with lifting equipment; Weightlifting, lifting weights for exercise and sport, including: Olympic weightlifting, an Olympic sport that tests explosive strength; Powerlifting, a sport that tests limit strength; Weight training, a way of increasing strength