Eileen is, at first, the pitiable one, a widow whose loneliness, Colin thinks, "included the demanding element that loneliness fosters".
Principally, a demand element can be satisfied from any preceding block including initial stock.
Continuous decision variables are used to model the flow from a production order into a demand element.
A demand element may be filled from initial stock or by a set of assigned production orders.
The pointer ( p(k) ) indicates the specific product ( p in P ) to which a demand element refers.
Note that in case a demand element for the chosen product-period combination has already been assigned, the assignment is rejected and a new product-period combination is drawn.
4.1, let K indicate the number of demand elements, B the number of blocks, W the number of blocks from which a demand element can be filled (the size of the time window), J the number of product families and ( bar{P} ) the average number of product types per family.
We are a culture of sexual voyeurs, Peeping Toms, which points directly to the underlying "supply and demand" element of this most recent fracas.
However, with today's funding announcement, the company is emphasising new features that create what is essentially a reverse marketplace for stock and other types of timely photography, giving an on-demand element to the photos it sells.
However, the company has since pivoted slightly, and like others in the crowdsourced photography space, now positions itself as a reverse marketplace for stock and other types of timely photography, giving an on-demand element to the photos it sells.
There's one other competitor hoving into view, of course: Apple with its iTunes Radio, which lacks an on-demand element, but will come preloaded with the second most popular smartphone and tablet ecosystem in the world, iOS.
