This paper deals with a two-warehouse inventory model for deteriorating items with time dependent demand and partial backlogging under inflation. It is assumed that deterioration of items follows two-parameter Weibull distribution and demand rate varies exponentially with time. Shortages are allowed and partial backlogging depends on waiting time of next replenishment. A numerical example is pr...

W e study a firm’s optimal transshipment problem considering the impacts of setup costs for transshipment and demand distribution shapes. We assume that the demand follows a three-point distribution, which changes from a degenerate distribution, to a unimodal distribution, and to a bimodal distribution as the demand shape parameter increases. We find that as the demand shape parameter increases...

For the newsvendor inventory control problem with ambiguous demand, Liyanage and Shanthikumar (2005) show that integrating parameter estimation and optimization leads to a better solution compared with the traditional approach. However, how to find the optimal operational statistics is left as an open question in their paper. We derive the optimal operational statistics using a non-informative ...

The relationship between the ground motion intensity measure (IM) and the engineering demand parameter (EDP) is analysed in the paper so as to identify and define the most efficient EDP-IM relationships for RC high-rise buildings. A 30-story RC high-rise building with the core wall structural system was selected as the reference building. 240 nonlinear time-history analyses were conducted for 6...

A novel scalar ground motion intensity measure (IM), termed the energy-frequency parameter, is proposed based on Hilbert-Huang transform. To validate effectiveness of IM, correlation analysis between engineering demand parameter (EDP) and performed using 1992 recorded motions, in which EDP maximum inter-storey drift structures obtained by nonlinear time-history analysis. Results show that has a...

Engineering changes (ECs) in engineering and manufacturing companies usually involve a wide range of time-consuming information processes. Commercial product data management (PDM) systems offer capable management of data for a single company, but not for a distributed engineering environment. In this paper, we present a concept for improving the handling of ECs not only within the various disci...

The Applied Technology Council is adapting PEER’s performance-based earthquake engineering methodology to professional practice. The methodology’s damage-analysis stage uses fragility functions to calculate the probability of damage to facility components given the force, deformation, or other engineering demand parameter (EDP) to which each is subjected. This paper introduces a set of procedur...