Uthayakumar, R
The Gandhigram Rural Institute, Deemed University, Gandhigram, India
[ 1 ] - Inventory Model for Deteriorating Items Involving Fuzzy with Shortages and Exponential Demand
This paper considers the fuzzy inventory model for deteriorating items for power demand under fully backlogged conditions. We define various factors which are affecting the inventory cost by using the shortage costs. An intention of this paper is to study the inventory modelling through fuzzy environment. Inventory parameters, such as holding cost, shortage cost, purchasing cost and deteriorati...
[ 2 ] - EOQ Model for Delayed Deteriorating Items with Shortages and Trade Credit Policy
This paper deals with a deterministic inventory model for deteriorating items under the condition of permissible delay in payments with constant demand rate is a function of time which differs from before and after deterioration for a single item. Shortages are allowed and completely backlogged which is a function of time. Under these assumptions, this paper develops a retailer's model for obta...
[ 3 ] - Integrated Inventory Model with Controllable Lead Time Involving Investment for Quality Improvement in Supply Chain System
The purpose of this article is to investigate a two-echelon supply chain inventory problem consisting of a single-vendor and a single-buyer with controllable lead time and investment for quality improvements. This paper presents an integrated vendor-buyer inventory model in order to minimize the sum of the ordering cost, holding cost, setup cost, investment for quality improvement and crashing ...
[ 4 ] - A Two-warehouse Inventory Model for Deteriorating Items with Permissible Delay under Exponentially Increasing Demand
In this study, a two-warehouse inventory model with exponentially increasing trend in demand involving different deterioration rates under permissible delay in payment has been studied. Here the scheduling period is assumed to be a variable. The objective of this study is to obtain the condition when to rent a warehouse and the retailer's optimal replenishment policy that minimizes the total re...
[ 5 ] - Mathematical Modelling for EOQ Inventory System with Advance Payment and Fuzzy Parameters
This study considers an EOQ inventory model with advance payment policy in a fuzzy situation by employing two types of fuzzy numbers that are trapezoidal and triangular. Two fuzzy models are developed here. In the first model the cost parameters are fuzzified, but the demand rate is treated as crisp constant. In the second model, the demand rate is fuzzified but the cost parameters are treated ...
[ 6 ] - An Integrated Inventory Model with Controllable Lead time and Setup Cost Reduction for Defective and Non-Defective Items
In this paper, the study deals with the lead time and setup reduction problem in the vendor-purchaser integrated inventory model. The cost of capital (i.e., opportunity cost) is one of the key factors in making the inventory and investment decisions. Lead time is an important element in any inventory system. The proposed model is presents an integrated inventory model with controllable lead tim...
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