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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 ...
As a special case of the multiple knapsack problem, when the profits are equal to weights and all bins have the same capacity, we can have multiple subset sum problem. Quadratic knapsack problem : maximize ∑ j = 1 n p j x j + ∑ i = 1 n − 1 ∑ j = i + 1 n p i j x i x j {\displaystyle \sum _{j=1}^{n}p_{j}x_{j}+\sum _{i=1}^{n-1}\sum _{j=i+1 ...
Data from Jane's All The World's Aircraft 2003–2004, Jane's all the World's Aircraft 2004-05, General characteristics Crew: 1 / 2 (M18BS) Capacity: 2,500 L (660 US gal; 550 imp gal) liquid or 2,200 kg (4,900 lb) dry chemical in fibreglass hopper forward of the cockpit (smaller hopper in M18BS) Length: 9.47 m (31 ft 1 in) Wingspan: 17.7 m (58 ft 1 in) Height: 3.7 m (12 ft 2 in) to tailfin on ...
The most common problem being solved is the 0-1 knapsack problem, which restricts the number of copies of each kind of item to zero or one. Given a set of n {\displaystyle n} items numbered from 1 up to n {\displaystyle n} , each with a weight w i {\displaystyle w_{i}} and a value v i {\displaystyle v_{i}} , along with a maximum weight capacity ...
Knapsack problem#0-1 knapsack problem To a section : This is a redirect from a topic that does not have its own page to a section of a page on the subject. For redirects to embedded anchors on a page, use {{ R to anchor }} instead .
The bin packing problem can also be seen as a special case of the cutting stock problem. When the number of bins is restricted to 1 and each item is characterized by both a volume and a value, the problem of maximizing the value of items that can fit in the bin is known as the knapsack problem.
In the section on the greedy 2-approximation for the unbounded knapsack problem, there is a reference to 'Discrete-Variable Extremum Problems' by George B. Tantzig, cited as providing the algorithm. As far as I can see, Dantzig is proposing the algorithm for the 0-1-problem (which he defines on page 273).
Aerial application, or what is informally referred to as crop dusting, [1] involves spraying crops with crop protection products from an agricultural aircraft. Planting certain types of seed are also included in aerial application. The specific spreading of fertilizer is also known as aerial topdressing in some countries.