Friday 8 February 2008

Issue 4, Volume 4, April 2007 for Comments, Questions, Discussion ...

Title of the Paper: Optimal Allocation of Time in Radiation Detection Labs

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Authors: Ahmad A. Moreb, Hani M. Aburas

Abstract: Nuclear radiation detection laboratories are confronted with huge number of products to be analyzed for dangerous radiation levels. Since the precision in determining the right level of radioactivity for a given product is directly proportional to the time allocated for that particular product, then the limited working hours for these laboratories become the scarce resource. In this paper, a nonlinear constrained model is developed to find the optimal allocation of time for each product in order to obtain the best possible estimate for the level of radiation for each given product. A validation procedure for this model was carried out using special cases.

Keywords: Nuclear Radiation, Minimization, Standard Deviation.


Title of the Paper: Minimizing Defects in Tufting Process Using Full Factorial Design

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Authors: Ahmad A. Moreb, Mehmet Savsar

Abstract: In this paper, a full factorial design is used to show the statistical significance of an effect that four specific factors exerts on the size of defect in a tufting process. The objective is to minimize the size of defect by adjusting these four factors. An equation is also developed to be used for predicting the size of defect in the tufting process.

Keywords:Tufting, Design of Experiments, Optimization

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