Abstract—In this paper, passenger ride comfort issues are studied taking active quarter car model with three degrees of freedom. A hybrid fuzzy – PID controller with coupled rules (HFPIDCR) is designed for vibration control of passenger seat. Three different control strategies are considered. In first case, main suspension is controlled. In second case, passenger seat suspension is controlled. ...

R E TA I L D E M A N D M A N A G E M E N T : F O R E C A S T I N G , A S S O R T M E N T P L A N N I N G A N D P R I C I N G Ramnath Vaidyanathan Marshall Fisher In the first part of the dissertation, we focus on the retailer’s problem of forecasting demand for products in a category (including those that they have never carried before), optimizing the selected assortment, and customizing the a...

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This paper presents a case study of applying a Bayesian approach to forecast demand and subsequently determine the appropriate parameter S of an (S-1,S) inventory system for controlling spare parts of electronic equipment. First, the problem and the current policy are described. Then, the basic elements of the Bayesian approach are introduced and the procedure for calculating the appropriate pa...

We consider a manufacturer that must fill stochastic demand. When shortages occur, the manufacturer may choose to meet the unmet demand with overtime production and/or by premium freight shipments. We derive optimal production policies for regular and overtime production and discuss the tradeoffs involved.

Consider a multiple booking class airline-seat inventory control problem that relates to either a single flight leg or to multiple flight legs. During the time before the flight, the airline may face the problems of (1) what are the suitable prices for the opened booking classes, and (2) when to close those opened booking classes. This work deals with these two problems by only using the pricin...