Inventory models for deteriorating items of a supply chain is critical essence to the maritime industry. This study proposes real and economically efficient multicriteria inventory policy with nonlinear ramp functions permissible delay in payment under inflation, two conditions Shortages Followed by (SFI) (IFS) have been considered formulation models. Both consist ordering cost, unit deteriorat...

We consider the following two deterministic inventory optimization problems over a finite planning horizon T with non-stationary demands. • Submodular Joint Replenishment Problem. This involves multiple item types and a single retailer who faces demands. In each time step, any subset of item-types can be ordered incurring a joint ordering cost which is submodular. Moreover, items can be held in...

the purpose of this study is to evaluate the effect of globalization on the cost of capital accepted companies in tehran stock exchange (tse(. in this regard, the degree of trade openness as an index the globalization of trade and other control variables such as firm size, the ratio of fixed assets to total assets, instantaneous ratio and the ratio of debts to total of equity has been used for ...

The roles of the several parameters that influences railway track deterioration most, are examined in this research with a view to make railway track maintenance more effective and cost efficient. The results presented are based on a comprehensive study of railway track degradation on super structure, sub-structure and geometrical aspects. The changes in TQI (Track Quality Index), the track set...

In a centrally managed system, inventory at a retailer can be transshipped to a stocked-out retailer to meet demand. As the inventory at the former retailer may be demanded by future customers of that retailer and transshipment time/cost is non-negligible, it can be more profitable to not transship in some situations. When unsatisfied demand is backordered, reassignment of inventory to a previo...

in this paper, the distribution network for multi-level supply chain has been studied. products produced in factories are sent to customers through warehouses and distribution centers based on specific demands. warehouses as holding inventory facilities are located close to factories and the distribution centers are placed in the most accessible locations for services near customers. each item ...

In this paper, an inventory model for deterioration items in a two-echelon supply chain including one retailer and one manufacturer is proposed by considering the stock and price dependent demand and capacity constraint for holding inventories. First, the model is presented as a leader-follower game in which the manufacturer announces wholesale prices. Second, the retailer decides for the order...

The use of cost-effective methods for measurement WHC is common in underdeveloped and developing countries, but the accuracy these compared to sophisticated more expensive alternatives unclear. To compare different methods, 30 random samples clay loam sandy soils Jhansi, India were used. here were: FAO in-situ method (FAO), Keen-Raczkowski box (KM), funnel (FM), column (CM) pressure plate (PPA)...

Offshore facilities are essential infrastructure systems for many nations because their partial or total interruption causes diverse consequences in the economic, political, environmental, and social sectors. With aim to preserve such structures at acceptable reliability levels, an approach is proposed calculate optimal instant of time which inspection maintenance works can be performed. The es...