A New Technique for Education Process Optimization via the Dual Control Approach

Marketing and Logistics Cooperation Problems in Latvian Companies

Abstract The given article analyses the discrepancies in the tasks of marketing and logistics and cooperation problems between these two areas within a company, as well as defines the role of these disciplines in the common system of business management. The authors point out the necessity of effective cooperation of marketing and logistic resulting in efficiency growth of the company and in improvement of competitiveness by means of collaboration synergy. Authors propose the results of the inquiry carried out in Latvian companies, revealing the most popular models of integration of marketing and logistics within the company and main cooperation problems between the departments of marketing…

A New Dynamic Model for Anticipatory Adaptive Control of Airline Seat Reservation via Order Statistics of Cumulative Customer Demand

This paper deals with dynamic anticipatory adaptive control of airline seat reservation for the stochastic customer demand that occurs over time T before the flight is scheduled to depart. It is assumed that time T is divided into m periods, namely a full fare period and m−1 discounted fare periods. The fare structure is given. An airplane has a seat capacity of U. For the sake of simplicity, but without loss of generality, we consider (for illustration) the case of nonstop flight with two fare classes (business and economy). The proposed policies of the airline seat inventory control are based on the use of order statistics of cumulative customer demand, which have such properties as bivar…

Adaptive Planning in-Service Inspections of Fatigued Structures in Damage Tolerance Situations via Observations of Crack Growth Process

From an engineering standpoint the fatigue life of a fatigued structure consists of two periods: (i) crack initiation period, which starts with the first load cycle and ends when a technically detectable crack is presented, and (ii) crack propagation period, which starts with a technically detectable crack and ends when the remaining cross section can no longer withstand the loads applied and fails statically. The main aim of this paper is to present more accurate innovative stochastic fatigue model for adaptive planning inspections of fatigued structures in damage tolerance situations via observations of crack growth process during a crack propagation period. A new crack growth equation is…