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Jack C. Hayya
Information about the author Jack C. Hayya will soon be added to the site.
Found
26 papers
in total
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Quantifying the bullwhip effect in a supply chain with stochastic lead time
2006
In a recent paper, Dejonckheere, Disney, Lambrecht, and Towill used control systems...
All-zero forecasts for lumpy demand: a factorial study
2007
Lumpy demand is a phenomenon encountered in manufacturing or retailing when the items...
An XML-centred approach to creating object-oriented supply chain simulation models
2006
We propose an eXtensible Markup Language (XML)-centred approach to object-oriented...
SISCO: An object-oriented supply chain simulation system
2006
We present SISCO, the Simulator for Integrated Supply Chain Operations, an...
The cost of lead-time variability: The case of the exponential distribution
2005
We present closed-form solutions for the reorder point, z , the order quantity with...
The bullwhip effect – impact of stochastic lead time, information quality, and information sharing: A simulation study
2004
We use a simulation model called ‘SISCO’ to examine the effects in supply...
The (s, Q) inventory model with Erlang lead time and deterministic demand
2004
We develop a simple, approximately optimal solution to a model with Erlang lead time...
Adapting the newsvendor model for infinite-horizon inventory systems
2001
We address inventory decisions in the context of the ‘reorder-point,...
Lot streaming in multistage production systems
2000
Lot streaming is a procedure in which a production lot is split into smaller sub-lots...
The performance of two popular service measures on management effectiveness in inventory control
1999
Service is one of the inventory managers' concerns and is frequently incorporated into...
On integrated production-replenishment policies in single-stage manufacturing
1999
This paper simultaneously considers production policies under general time-dependent...
An inventory model with order crossover
1998
In inventory systems with stochastic lead times, it is possible that more than a...
Dynamic setup reduction in production lot sizing with nonconstant deterministic demand
1996
We examine three production policies under nonconstant, deterministic demand and...
On the (t,Sj) policy in an integrated production/inventory model with time-proportional demand
1993
In this paper, the authors consider a two-level continuous time lotsizing problem with...
An optimal algorithm for integrating raw materials inventory in a single-product manufacturing system
1992
In this paper, the authors develop an exact solution procedure for finding the optimal...
Setup reduction and machine availability
1995
This paper is an extension of Billington, who used the framework of the economic...
Order crossover in inventory systems
1995
Order crossovers are usually ignored in iid lead-time inventory systems by using a...
Joint investment in quality improvement and setup reduction
1995
Given a limited investment, the authors provide a general solution procedure that...
Dual sourcing with nonidentical suppliers
1993
The authors analyze a dual-sourcing inventory model with exponential lead times and...
Just-in-Time purchasing: Single or multiple sourcing?
1992
The authors consider two Just-In-Time purchasing models, one utilizing a few sources,...
JIT purchasing and setup reduction in an integrated inventory model
1992
The authors study the effect of JIT order quantities on the purchase of raw materials...
Sole versus dual sourcing in stochastic lead-time (s,Q) inventory models
1991
When supply lead times are uncertain, the simultaneous procurement from two sources...
Multiple sourcing: The determination of lead times
1991
In a multiple-sourcing environment, the order quantity may be split concurrently among...
A fuzzy clustering approach to manufacturing cell formation
1991
Cell formation, one of the most important problems faced in designing cellular...
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