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A by-product or byproduct is a secondary product derived from a production process, manufacturing process or chemical reaction; ...
Waste is any substance discarded after primary use, or is worthless, defective and of no use. A by-product, by contrast is a joint product of relatively minor economic value. A waste product may become a by-product, joint product or resource through an invention that raises a waste product's value above zero.
In category theory and its applications to mathematics, a biproduct of a finite collection of objects, in a category with zero objects, is both a product and a coproduct. In a preadditive category the notions of product and coproduct coincide for finite collections of objects. [1] The biproduct is a generalization of finite direct sums of modules.
A main product is a joint output that generates a significant portion of the net realizable value (NRV) within a joint production process.The classification of a product resulting from a joint production process as either a main product or a by-product has relevance in the context of cost management because costs are only allocated to main products, not to by-products.
In calculus, the product rule (or Leibniz rule [1] ... Then d(uv) is the same thing as the difference between two successive uv's; let one of these be uv, ...
This page was last edited on 15 June 2004, at 05:58 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may ...
It is the category-theoretic dual notion to the categorical product, which means the definition is the same as the product but with all arrows reversed. Despite this seemingly innocuous change in the name and notation, coproducts can be and typically are dramatically different from products within a given category.
Venice Biennale installation by Małgorzata Mirga-Tas (2022) - artistic upcycling of old textile materials. While recycling usually means the materials are remade into their original form, e.g., recycling plastic bottles into plastic polymers, which then produce plastic bottles through the manufacturing process, upcycling adds more value to the materials, as the name suggested.