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Nazario Ramírez, Ph.D.
Professor
Office:
II-102
Tel. No.:
787-832-4040
Ext. No.:
3051
Home Page:
EMail:
nazario@uprm.edu
Curriculum Vitae:
N/A
Research interest: - Active in the following areas
- Healthcare
- Math Modeling
- Multivariate Analysis
- Distribution & Logistics
- Spectral and time series analyses
- Statistical Remote Sensing Applications
- Weather
- Optimization
- Manufacturing
- Math Programming
- Neural Networks
- Production Scheduling
- Interested in the following areas
- Stochastic Processes
- Bioinformatics
- Network Flows
- Stochastic Opt. & Control
- Design of Experiments
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- Works in Print
- Chapters in Book
- Ramirez-Beltran, N. D., Rodriguez, H., and Estevez, L. A. (2008). Pharmaceutical Manufacturing Handbook: Regulations and Quality. (Drug Stability). Edited by Shayne C. Gad, John Wiley & Sons, New Jersey.
- Refereed Journal Articles
- Ramírez Beltran, N.D, Castro, J.M., Harmsen, and E. Vasquez, R. (2008). Stochastic transfer function models and neural networks to estimate soil moisture. Journal of the American Water Resources Association. Vol. 44, No. 44, pp 847-865.
- Ramírez Beltran, N.D, Kuligowski, R.J., Harmsen, E., Castro, J.M., Cruz-Pol, S., Cardona-Soto, M. (2008). Rainfall Estimation from Convective Storms Using the Hydro-Estimator and NEXRAD. WSEAS Transaction on Systems. In press.
- Harmsen, E. W., S. E. Gomez Mesa, E. Cabassa, N. D. Ramírez-Beltran, S. Cruz Pol, R. J. Kuligowski And R. Vasquez, (2008). Satellite sub-pixel rainfall variability. International Journal of Systems Engineering, Applications and Development, World Scientific and Engineering Academy and Society. (accepted)
- Ramírez Beltran, N.D, Calderon, C. Vasquez, R. Harmsen, E. and Castro, J.M. (2008) Remote sensing and statistical techniques to estimate soil moisture over tropical areas. Journal of Applied Remote Sensing. In press, to be published on 2008.
- Ramirez-Beltran, N.D., W.K.M. Lau, A. Winter, J.M. Castro, and N.R. Escalante. Empirical Probability Models to Predict Precipitation Levels over Puerto Rico Stations. Monthly Weather Review. Vol. 135, No. 3, pp 877-890, 2007
- Gonzalez, J., Luvall, J.C., Rickman, D., Comarazamy, D., Picon, A.J., Harsem, E.W., Parsiani, H., Ramirez, N., Vasaquez, R., William, R., Waide, R.B., and Tepley, C. (2005) Urban Heat Islands Developing in Coastal Tropical Cities. EOS, Transactions, American Geophysical Union. Vol 86, No 42.
- Ramirez-Beltran, N.D. and Montes, J.A., (2002) Neural Networks to Model Dynamic Systems with Time Delays. IIE Transactions, Vol. 34, pp 313-327.
- Ramirez-Beltran, N.D., (2000). Application of Mixed Integer Programming to Cellular Manufacturing, Engineering Valuation and Cost Analysis, Vol. 2., pp 373-386.
- Ramirez-Beltran, N.D., and T. Sastri. Transient Detection with an Application to a Chemical Process. Computers & Industrial Engineering, Vol. 32, No. 4, pp 891-908, 1997
- Ramirez-Beltran, N.D. A Vector Autoregressive Model to Predict Hurricane Tracks. International Journal of Systems Science, Vol. 27, No. 1, pp 1-10, 1996
- Ramirez-Beltran, N.D. Autoregressive and Adaptive Estimation with an Application to Hurricane Track Prediction. International Journal of Systems Science, Vol. 26, No. 10, pp 1791-1812, 1995
- Ramirez-Beltran, N.D., Integer Programming to Minimize Labor Costs. Journal of the Operational Research Society, Vol. 46, No. 2, pp 139-146, 1995
- Ramirez-Beltran, N.D. (1994). Integer Programming with Stochastic Coefficients. Mathematics Today, Vol. XII-A,
pp 35-50.
- Ramirez-Beltran, N.D., M. Jimenez and J.T. Allison, (1993). "Optimization of Electrical Energy Distribution for a Deficient System," Journal of the Operational Research Society, Vol. 44, No. 8, pp 761-772.
- Refereed Conference Articles (in proceedings, transactions, ...)
- Ramirez-Beltran, N.D., F. Gilbes, and J.M. Castro. (2004) A stochastic-dynamic model to predict fecal coliforms at the mouth of the Añasco River. Coastal Environment V Incorporating Oil Spill Studies, WIT Press, Great Britain, pp 83-93.
- Grants and Contracts
- Funded External Grants and Contracts
- NSF-ERC (3,710,427)
Collaborative Adaptive Sensing of the Atmosphere: Student Testbed Research Activities.
(2007) - NOAA/NWS (100,000)
Statistical Techniques to Improve the Hydro-Estimator Rainfall Algorithm During Heavy Storms over Puerto Rico.
(2006) - NASA-IDEAS ($ 30,000)
The Climatic Impact of the Changing Low Lands on the Caribbean National Forest in the East of Puerto Rico.
(2006) - NOAA-CREST ($300,000 per year)
Soil Moisture Estimation and Validation a Hydro-Estimator.
(2003) - US Geological Surrey ($60,000)
Seasonal to Century Scale Climate Effects on the Water Resources of the US Virgin Islands.
(2002) - NASA-EPSCoR (500,000 per year)
Climate Change Detection and Hurricane Tracking and Intensity.
(2001) - NASA-PRSGC (30,000)
Radiosonde and Satellite Imagery Correlation.
(2000) - NASA-EPSCoR ($50,000)
Caribbean Atmospheric Dynamics.
(1999) - Abbott Diagnostics Inc., and Industrial Affiliate Program ($21,000)
Optimization and Neural Networks to Reduce Lot-End Costs.
(1998) - Industry University Research Center(INDUNIV) and MOVA Pharmaceutical Corporation ($175,000)
Stability Prediction for Drug Products.
(1997) - Industry University Research Center (INDUNIV) ($20,000)
An On-Line System for Multivariate Process Diagnostics and Monitoring.
(1996) - University Transportation Research Center ($20,000)
Development of Weight Probability Distributions and Truck Factors for Puerto Rico.
(1996) - Industry University Research Center (INDUNIV) and Abbott Chemical Inc ($50,000)
Neural Networks for On-Line Process Monitoring.
(1994) - U.S. Department of the Interior ($20,000)
Time Series Models and Neural Networks to Control and Forecast the Surface Water Pollution in Puerto Rico.
(1994) - National Science Foundation (NSF) ($30,000)
Tracking and Forecasting of Synoptic Scale Weather Events and Hurricanes.
(1993) - Abbott Diagnostics Inc ($24,000)
Probability Distribution for the Ratio of two Means.
(1992) - U.S. Department of the Interior ($25,000)
Prediction of Water Use in Puerto Rico (Phase I: Mayaguez).
(1992) - NSF ($30,000)
Hurricane Tracking Prediction.
(1991) - Abbott Diagnostics Inc ($24,000)
Inverse Prediction Intervals for Calibration Curves.
(1991)
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