Search results
Results from the WOW.Com Content Network
In agriculture, a sprayer is a piece of equipment that is used to apply herbicides, pesticides, and fertilizers on agricultural crops. Sprayers range in size from man-portable units (typically backpacks with spray guns) to trailed sprayers that are connected to a tractor, to self-propelled units similar to tractors with boom mounts of 4–30 ...
An instance of either the continuous or classic knapsack problems may be specified by the numerical capacity W of the knapsack, together with a collection of materials, each of which has two numbers associated with it: the weight w i of material that is available to be selected and the total value v i of that material.
The first known aerial application of agricultural materials was by John Chaytor, who in 1906 spread seed over a swamped valley floor in Wairoa, New Zealand, using a hot air balloon with mobile tethers. [3] Aerial sowing of seed still continues to this day with cover crop applications and rice planting.
Air Tractor AT-802, with the largest hopper capacity of any commercially available agricultural aircraft. Gehling PZL-106AR Kruk The Antonov An-2 was a mass-produced aircraft. Many were used for agricultural work. Polish M-18 Dromader used for aerial fire-fighting in Australia. A Grumman Ag Cat applies a low-insecticide bait on a soybean field.
The quadratic knapsack problem (QKP), first introduced in 19th century, [1] is an extension of knapsack problem that allows for quadratic terms in the objective function: Given a set of items, each with a weight, a value, and an extra profit that can be earned if two items are selected, determine the number of items to include in a collection without exceeding capacity of the knapsack, so as ...
It covers "any device or appliance designed to be worn or held by an individual for protection against one or more health and safety hazards". [24] The directive was adopted on 21 January 1989 and came into force on 1 July 1992.
The knapsack problem is one of the most studied problems in combinatorial optimization, with many real-life applications. For this reason, many special cases and generalizations have been examined. For this reason, many special cases and generalizations have been examined.
Yam, K.L., "Encyclopedia of Packaging Technology", John Wiley & Sons, 2009, ISBN 978-0-470-08704-6 Soroka, W, Illustrated Glossary of Packaging Terminology Institute of Packaging Professionals, [1] Soroka, W, "Fundamentals of Packaging Technology", Chapter 19 – Packaging Machinery, IoPP, 2002, ISBN 1-930268-25-4