Faculty

Bill Tollner

Professor & Graduate Coordinator
Driftmier Engineering Center, Room 115
University of Georgia
Athens, GA 30602

Email:
Phone: 706-542-3047
Fax: 706-542-8806

Natural resources engineering; Watershed assessment; postharvest

The overall area of research has been and is related to development of engineering analysis and solutions related with measurement of soil physical properties in the soil-water-plant root continuum and to evaluate applicability of the concepts of nondestructive measurement in selected agricultural systems. -To develop approaches and methods, consistent with climate and available water, for pond designs for developing countries for fish production and water supply.

To develop bioconversion strategies enabling agricultural wastes and other selected biologically-based materials to be composted and/or converted into alternative products and uses. 

To contribute to the development of the discipline of Ecological Engineering through research into appropriate thermodynamic relationships underlying this new discipline.

Courses Currently Taught

ENGR 8520 Advanced heat transfer

ENGR 4210 Linear Systems analysis

ENGR 3440 Water Management

ENGR 3420 Soil Mechanics

My experience has led me the following concepts with an enduring robustness at the upper division and graduate levels.

• a. To create a professional, one has to provide an environment where students can experience a professional environment.
• b. It is up to the instructor to articulate a vision for the class in terms of tangible outcomes for students bridging into the world of employment or higher education.
• c. At the upper division and graduate levels, we do not teach nearly as much as we motivate and maintain motivation.
• d. Have expectations that will prepare students to equal and exceed employer expectations in a productive work environment.
• e. Don't lose the really capable students in the mixture at the lowest common denominator.

Saleh, A. and E.W. Tollner. 2008. 21st Century Watershed Technology: Improving Water Quality and Environment. On-Line proceedings of the 2008 International ASABE Water Quality Conference in Concepcion, Chile. Am. Soc. Agr. & Bio. Engrs., St. Joseph, MI. Available at www.asabe.org.

Tollner, E.W. 2009. Soil dynamics. IN Encyclopedia of Agricultural, Food and Biological Engineering, Ed by D. Heldman. 906 - 910. (revised past chapter).

Tollner, E.W., Kazanci, C., J. Schramski and B.Patten. 2009. Implications of Network Particle Tracking (NPT) for Ecological Model Interpretation. Ecological Modeling (In Press).

Tollner, E.W., Kazanci, C., J. Schramski and B.Patten. 2009. Control System Approaches to Ecological Systems Analysis: Invariants and Frequency Response. Ecological Modeling (In Review).

Kazanci, C. L. Matamha, E.W. Tollner. 2008. Cycling in ecosystems: An individual based approach. Ecological Modeling (In Press).

Mosqueda, M., E.W. Tollner, R.W. McClendon, G. Boyhan and C. Li. 2008. Simulating onion packinghouse product flow for performance evaluation and education, Bioresource Engineering 102(2):135-142.

Tollner, E.W., D. Meyer, S. Triminio-Meyer2 and J. J. Molnar. 2008. Spreadsheet tool for computing levee pond excavation costs for developing countries. Aquacultural Engineering 39(2-3):122-126.

Ssegane, H., E.W. Tollner and S. Mccutcheon. 2008. Estimation of micro-watershed topographic parameters using earth observatory tools. Applied Engineering in Agriculture, 24(6):763-766.

Hilten, R.H., T.M. Lawrence, and E.W. Tollner. 2008. Modeling stormwater runoff from green roofs with HYDRUS-1D. Journal of Hydrology, 358(3-4):288-293.

Bhandarkar, S.M., X. Luo, R.F. Daniels and E.W. Tollner. 2008. Automated planning and optimization of lumber production using machine vision and computer tomography. Transactions on Automation Science and Engineering 5:1-18.

K.C. Das, P.A. Annis, E.W. Tollner and S. Dudka .2006. Technical and economic aspects of utilizing fibrous wool composts in horticulture. Journal of Applied Horticulture, 8(2): 165-169. (not notified until 2007).

Bhandarkar S.A., Chowdhury A.S., Tang Y., and E.W. Tollner. 2007. Computer vision guided virtual craniofacial reconstruction. Computerized Medical Imaging and Graphics 31 (6): 418-427.

Meyer, S., J. Molnar, D. Meyer. and E. Tollner. 2007. Tilapia fingerling production in Honduras. Journal of Applied Aquaculture 19 (2): 1-27.

Tollner, E.W. and C. Kazanci. 2007. Defining an ecological thermodynamics using discrete simulation approaches Ecological modeling 208(1): 68-79.

Tekeste, M.Z., R.L. Raper and E.W. Tollner, T.R. Way. 2007. Finite element analysis of cone penetration in soil for prediction of hardpan location. Trans. ASABE 50(1): 23-31.

Birkett, C., E.W. Tollner and D. Gattie. 2007. Total Suspended Solids and Hydraulic Regime effects on periphyton growth in a laboratory flume. Transactions of the ASABE 50 (3): 1095-1104.

Tollner, E.W., S.E. Prussia and W. Florkowski. 2006. Modeling Product Flow Through a Generic Postharvest Distribution System. Journal of Food Distribution Research. 37(2):23-34.

Bhandarkar S.M., Luo X.Z., Daniels R., and E.W. Tollner. 2006. A novel feature-based tracking approach to the detection, localization, and 3-D reconstruction of internal defects in hardwood logs using computer tomography. Pattern Analysis and Applications 9 (2-3): 155-175.

Tollner, E.W. and T.C. Rasmussen. 2005. Simulated moving bed forms effects on real-time in-stream sediment concentration measurement with densitometry. Jour. of Hydraulic Engineering. 131(12):1141-1144.

Pablo R. Martinez, J. Molnar, E. Trejos, D. Meyer, S. Triminio Meyer and W. Tollner. 2005. Cluster Membership as a Competitive Advantage in Aquacultural Development: Case Study of Tilapia Producers in Olancho, Honduras. Journal of Aquacultural Economics 8(5-6): 281-294.

Bhandarkar SM, X.Z. Luo, R. Daniels and E.W. Tollner. 2005. Detection of cracks in computer tomography images of logs. Pattern Recognition Letters 26 (14): 2282-2294.

Gattie D.K., E.W. Tollner, T.L. Foutz. 2005. Network environ analysis: A mathematical basis for describing indirect effects in ecosystems. Trans ASAE, Vol. 48(4):1645-1652.

Tollner, E.W., R. Gitiatus, K. Seebold and B. Maw. 2005. Experiences with an onion inspection machine. Applied Engineering in Agriculture 21 (5): 907-912.

Tollner, E.W. and K.C. Das. 2004. Predicting Runoff from a Yard Waste Windrow Composting Pad. Transactions of the ASAE Vol. 47(6): 1953-1961.

van Donk, S.J., Tollner, E.W. and Steiner, J.L. Soil temperature under a dormant bermudagrass mulch: Simulation and measurement. Transactions of the ASAE, 47 (1): 91-98 JAN-FEB 2004.

Runoff Coefficient eval USGS 2008 250,00 PI

Water supply Devel Uganda SA USAID-CRSP-Aqua 2009 78,000 PI

Microwave Peanut Geo Pea Com 2008 3,000 PI

MicroWave Peanut Grading Southeast Pea 2008 35,000 PI

• Introduction to Natural Resources Engineering

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