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Integrated cutting machine programming and lot sizing in furniture industry
(2011)
In this paper a mathematical model that combines lot-sizing and cutting-stock problems applied to the furniture industry is presented. The model considers the usual decisions of the lot sizing problems, as well as operational ...
Mathematical model and solution approaches for integrated lot-sizing, scheduling and cutting stock problems
(Springer, 2020-09-04)
In this paper, we address a two-stage integrated lot-sizing, scheduling and cutting stock problem with sequence-dependent setup times and setup costs. In production stage one, a cutting machine is used to cut large objects ...
Moderate-to-vigorous physical activity among postmenopausal women: Discrepancies in accelerometry-based cut-points
(2017-01-01)
The objective of this study was to compare moderate-to-vigorous physical activity (MVPA), minutes per week (min/wk), and fulfillment of the current recommendation (150 min/wk of MVPA) based on different cut-points in ...
Connections between cutting-pattern sequencing, VLSI design, and flexible machines
(Pergamon-Elsevier Science Ltd, 2002-10)
The minimization of open stacks problem (MOSP) arises on the sequencing of a set of cutting patterns in order to minimize the maximum number of open stacks around the cutting saw. A previous study formulated the problem ...
Foraging activity pattern and herbivory rates of the grass-cutting ant Atta capiguara
(Springer, 2016-08-01)
The objective of this study was to investigate the seasonal change in the pattern of foraging activity in the leaf-cutting ant Atta capiguara and to provide an estimate of the annual herbivory rate of its colonies. We ...
Algorithms for two-dimensional cutting stock and strip packing problems using dynamic programming and column generation
(ELSEVIER SCIENCE BV, 2008)
We investigate several two-dimensional guillotine cutting stock problems and their variants in which orthogonal rotations are allowed. We first present two dynamic programming based algorithms for the Rectangular Knapsack ...
COLONIZATION PATTERNS OF THE LEAF-CUTTING ANT, ATTA-BISPHAERICA FOREL - EVIDENCE FOR POPULATION REGULATION
(Blackwell Wissenschafts Verlag Gmbh, 1987-08-01)
COLONIZATION PATTERNS OF THE LEAF-CUTTING ANT, ATTA-BISPHAERICA FOREL - EVIDENCE FOR POPULATION REGULATION
(Blackwell Wissenschafts Verlag Gmbh, 1987-08-01)
A genetic algorithm for the one-dimensional cutting stock problem with setups
(Sociedade Brasileira de Pesquisa Operacional, 2014-05-01)
This paper investigates the one-dimensional cutting stock problem considering two conflicting objective functions: minimization of both the number of objects and the number of different cutting patterns used. A new heuristic ...
Substrate Preparation Behaviors for the Cultivation of the Symbiotic Fungus in Leaf-Cutting Ants of the Genus Atta (Hymenoptera: Formicidae)
(California State University, 2009-01-01)
Our findings revealed two distinct patterns of substrate preparation: the pattern of leaf-cutting ants foraging on dicotyledons is marked by highly fragmented substrate resulting in a more advanced initial decomposition. ...