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Most air conditioners have a COP of 2.3 to 3.5. [ 4 ] When talking about the efficiency of heat engines and power stations the convention should be stated, i.e., HHV ( a.k.a. Gross Heating Value, etc.) or LCV (a.k.a. Net Heating value), and whether gross output (at the generator terminals) or net output (at the power station fence) are being ...
Intensive animal farming, industrial livestock production, and macro-farms, [1] also known as factory farming, [2] is a type of intensive agriculture, specifically an approach to animal husbandry designed to maximize production while minimizing costs. [3]
For example, it is possible to pack 147 rectangles of size (137,95) in a rectangle of size (1600,1230). Packing different rectangles in a rectangle : The problem of packing multiple rectangles of varying widths and heights in an enclosing rectangle of minimum area (but with no boundaries on the enclosing rectangle's width or height) has an ...
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In the framework of the AGREE project [3], studies on the energy efficiency of specific agricultural production systems of different types (arable crops, agro-forest, greenhouses, and animal husbandry) were executed in 2012-13 in Europe based on existing data from six countries and were combined in one report.
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This meant that farms were being turned into food factories as they became bigger in size and grew more commodity crops like corn, wheat, and cotton. From 1900 to 2002, the number of farms in the US decreased significantly while the average size of a farm went up after 1950. [196] [195] Current Policies
The effective packing dimension of a set X is (|). [3] [4] [5] From this one can see that both the effective Hausdorff dimension and the effective packing dimension of a set are between 0 and 1, with the effective packing dimension always at least as large as the effective Hausdorff dimension.