In this paper a meta-heuristic approach has been presented to solve lotsize determination problems in a complex multi-stage production planning problems with production capacity constraint. This type of problems has multiple products with sequential production processes which are manufactured in different periods to meet customer’s demand. By determining the decision variables, machinery produc...

The article summarizes the results of analysis causes fragmentation, dissociation, and polarization economic space rural territories, primarily southern regions Russia, which are leading agricultural industrial country (Rostov region, Krasnodar Krai Stavropol Krai), determines impact infrastructure deficits, conventionality farming for outflow economically active population to areas with a high...

This research aims to plan a “good-enough” schedule with leveling of resource contentions. We use the existing critical chain project management-max-plus linear framework. Critical chain project management is known as a technique used to both shorten the makespan and observe the due date under limited resources; the maxplus linear representation is an approach for modeling discrete event system...

Land leveling is one of the most important steps in soil preparation and cultivation. Although land leveling with machines requires considerable amount of energy, it delivers a suitable surface slope with minimal soil deterioration as well as damage to plants and other organisms in the soil. Notwithstanding, in recent years researchers have tried to reduce fossil fuel consumption and its delete...

Sink nodes are the data centers of wireless sensor networks (WSNs), and the storage management scheme for such nodes is vital, particularly in applications such as wireless multimedia sensor networks that involve the collection of massive amounts of data. NAND flash memory is often employed in sink nodes because of its excellent characteristics. Because the lifetime of NAND flash memory is high...

PURPOSE The use of joint leveling procedures to treat Kienböck's disease have been limited by the degree of disease advancement. This study was designed to compare clinical and radiographic outcomes of wrists with more advanced (stage IIIB) Kienböck's disease with those of wrists with less advanced (stage II/IIIA) disease following radius-shortening osteotomy. METHODS This retrospective study...

We use the theory of tunnel number 1 knots introduced in an earlier paper to strengthen the Tunnel Leveling Theorem of Goda, Scharlemann, and Thompson. This yields considerable information about bridge numbers of tunnel number 1 knots. In particular, we calculate the minimum bridge number of a knot as a function of the maximum depth invariant d of its tunnels. The growth of this value is on the...