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- K. V. Geetha, R. Uthayakumar
- J. Computational Applied Mathematics
- 2010

In this paper, Economic Order Quantity (EOQ) based model for non-instantaneous deteriorating items with permissible delay in payments is proposed. This model aids in minimizing the total inventory cost by finding an optimal replenishment policy. In this model shortages are allowed and partially backlogged. The backlogging rate is variable and dependent on… (More)

- A. Thangam, R. Uthayakumar
- Computers & Industrial Engineering
- 2009

- P. Paramanathan, R. Uthayakumar
- Computers & Mathematics with Applications
- 2010

- P. Paramanathan, R. Uthayakumar
- Comp. in Bio. and Med.
- 2008

In medical discipline, complexity measure is focused on the analysis of nonlinear patterns in processing waveform signals. The complexity measure of such waveform signals is well performed by fractal dimension technique, which is an index for measuring the complexity of an object. Its applications are found in diverse fields like medical, image and signal… (More)

- D. Easwaramoorthy, R. Uthayakumar
- 2010 INTERNATIONAL CONFERENCE ON COMMUNICATION…
- 2010

Fractal Analysis is the well developed theory in the Non-linear Analysis of Biomedical Signals such as Electroencephalogram (EEG). EEG signal is essentially multi scale fractal, i.e. Multifractal. Therefore Multifractal measures such as Generalized Fractal Dimensions (GFD), could be a useful tool to compute the degree of disorders, complexity, irregularity… (More)

- D. Easwaramoorthy, R. Uthayakumar
- J. Comput. Science
- 2011

- M. Valliathal, R. Uthayakumar
- Optimization Letters
- 2011

- R. Uthayakumar, P. Parvathi
- Int. J. Systems Science
- 2009

- G. Jayalalitha, V. Shanthoshini Deviha, R. Uthayakumar
- Comp. in Bio. and Med.
- 2008

Blood flow in the cardiovascular system is the central point of experimental and theoretical investigation. The objective of the study is to determine the blood flow in the cardiovascular system using Darcy's law, Reynold's number and Poiseuille's equation. A possible way of modeling of self-similar biological tree-like structure is proposed. Special… (More)

- R. Uthayakumar, M. Rameswari
- J. Optimization Theory and Applications
- 2012