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Articles 91 - 93 of 93
Full-Text Articles in Life Sciences
Location-Allocation Models For Establishing Facilities, David F. Gibson, John Rodenberg
Location-Allocation Models For Establishing Facilities, David F. Gibson, John Rodenberg
Aspen Bibliography
Two models and accompanying computer programs are presented which were developed to locate facilities for the timber harvesting industry. Addressed is a case of the facility location-allocation problem. The optimum location and number of landings, facilities to which timber is transshipped, are determined so as to minimize a cost function. This function is composed of the following components: (1) cost of transporting material from its original location to a landing, (2) cost of establishing a landing (facility cost), and (3) cost of transporting material from the landings to some designated point termed the origin. Output of the computer programs is …
Production Of Dry Matter From Aspen Stands Harvested On Short Rotations, A. B. Berry
Production Of Dry Matter From Aspen Stands Harvested On Short Rotations, A. B. Berry
Aspen Bibliography
Although the aspens (Populus tremuloides Michx. and P. grandidentata Michx.) are amongst the most widely distributed species in Canada and the United States, their utilization has been disproportionally small; in fact aspen was considered a weed species for many years.
Development Of Unpollinated Ovules Of Quaking Aspen, G.H. Fechner
Development Of Unpollinated Ovules Of Quaking Aspen, G.H. Fechner
Aspen Bibliography
The development of quaking aspen (Populus tremuloides Michx.) female flowers has been studied following wind pollination in the field (Nagaraj, 1952) and following forcing and controlled pollination in the laboratory (Winton, 1968; Fechner, 1972).