Refereed Publications, Media Coverage, Conference Proceedings, Technical Reports...

Publications

   Book Chapters:

• Najjar, Yacoub and Zaman, Musharraf (1994)  " Prediction of Surface Subsidence Due to Mining Using the Finite Element Method," Chapter 11 in a book titled: Soil Structure Interaction: Numerical Analysis and Modeling, Editor John W. Bull, Chapman & Hall, London, pp. 395-421.

Published:

• Ali, Hossam and Najjar, Yacoub (1999) "Neuronet - Based Approach for Assessing the Liquefaction Potential of Soils," Transportation Research Records, No. 1633, pp. 3 -8

• Basheer, Imad A. and Najjar, Yacoub M. (1998) "Charts for Probabilistic Design of Strip Footings on Cohesionless Soils," Geotechnical and Geological Engineering, Vol. 16, No. 1, pp. 1-16

• Starrett, Steven, Starrett, Shelli, Najjar, Yacoub, Adams, Greg, and Hill, Judy (1998) "Modeling Pesticide Leaching from Golf Courses Using Artificial Neural Networks," Communication in Soil Science and Plant Analysis, Vol. 29, pp. 3093-3106.

• Najjar, Yacoub M., Basheer, Imad A., McReynolds, Richard (1997) "A Neuronet - Based Approach to Modeling the Durability of Aggregate in Concrete Pavement Construction," Transportation Research Record, No. 1582, pp. 29-33.

• Najjar, Yacoub M., Basheer, Imad A. and Hajmeer, Maha N. (1997) "Computational Neural Networks for Predictive Microbiology: Methodology," International Journal of Food Microbiology, Vol. 34, pp. 27-49.

• Hajmeer, Maha N., Basheer, Imad A. and Najjar, Yacoub M. (1997) "Computational Neural Networks for Predictive Microbiology: Application to Microbial Growth," International Journal of Food Microbiology, Vol. 34, pp. 51-66.

• Najjar, Yacoub M., Basheer, Imad A., McReynolds, Richard (1996) "Neural Modeling of Kansas Soil Swelling," Transportation Research Record, No. 1526, pp. 14-19.

• Basheer, Imad A. and Najjar, Yacoub M. (1996) "Reliability-Based Design of Reinforced Earth Retaining Walls," Transportation Research Record, No. 1526, pp. 64-78.

• Najjar, Yacoub M. and Basheer, Imad A. (1996) " Utilizing Computational Neural Networks for Evaluating the Permeability of Compacted Clay Liners," Geotechnical and Geological Engineering, Vol. 14, No. 3, pp. 193-212.

• Basheer, Imad A., Najjar, Yacoub M. and Hajmeer, Maha N. (1996) " Neuronet Modeling of VOC Adsorption by GAC, " Environmental Technology, Vol. 17, pp. 795-806.

• Najjar, Yacoub M., Basheer, Imad A. and Naouss, Wissam A. (1996) "On the Identification of Compaction Characteristics by Neuronets," Computers and Geotechnics, Vol. 18, No. 3, pp. 167-187.

• Basheer, Imad A., Reddi, Lakshmi N. and Najjar, Yacoub M. (1996) " Site Characterization by Neuronets: An Application to the Landfill Siting Problem," Ground Water, Vol. 34, No. 4, pp. 610-617.

• Basheer, Imad A. and Najjar, Yacoub M. (1996) " Predicting Dynamic Response of Adsorption Columns with Neural Nets," ASCE-Journal of Computing in Civil Engineering, Vol. 10, No. 1, pp. 31-39.

• Naouss, Wissam A. and Najjar, Yacoub M. (1995) "Seepage Design Charts for Flat Bottom Dams on Heterogeneous Media," International Journal for Numerical and Analytical Methods in Geomechanics, Vol. 19, pp. 637-651.

• Basheer, Imad A. and Najjar, Yacoub M. (1995) " Designing and Analyzing Fixed-Bed Adsorption Systems with Artificial Neural Networks," Journal of Environmental Systems, Vol. 23, No. 3, pp. 291-312.

• Najjar, Y. and Zaman, M. (1993) " Numerical Modeling of Ground Subsidence Due to Mining" International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, Vol. 30, #7, pp. 1445-1448.

• Najjar, Yacoub and Zaman, Musharraf (1993) "Surface Subsidence Prediction by Nonlinear Finite Element Analysis," ASCE-Journal of Geotechnical Engineering, Vol.119, #11, pp. 1790-1804.

• Zaman, M. M., Najjar, Y. M. and Muqtadir, A. (1993) "Effects of Cap Thickness and Pile Inclination on the Response of a Pile Group Foundation by a Three-Dimensional Nonlinear Finite Element Analysis," Computers and Geotechnics, Vol. 15, pp. 65-86.

• Zaman, M., Najjar, Y. M. and Faruque M. O. (1993) "Modeling of Stress-Strain Behavior of Plain Concrete Using a Plasticity Framework," Materials and Structures, Vol. 26, pp. 129-135.

• Najjar, Y. M., Zaman, M. M. and Faruque, M. O.(1990) "Elasto-Plastic Constitutive Modeling of Plain Concrete and an Optimization Procedure for a Parameter Evaluation," Computers and Geotechnics, Vol. 9, pp. 185-208.

Accepted for Publication:

• Najjar, Yacoub and Naouss, Wissam (1999) "Finite Element-Based Seepage Design Charts for Sheet Piles Penetrating Heterogeneous Media," Transportation Research Record.

 

Published:

• Najjar, Yacoub, Stokes, Robert and Russell, Eugene (1999) "Using Roadway Characteristics to Set Reasonable Speed Limits on Kansas Two-Lane Rural Roads," In Intelligent Engineering Systems Through Artificial Neural Networks, Vol. 9, Dagli, C. H. et. al. (Editors), pp. 833-838.

• Najjar, Yacoub, Basheer, Imad, Ali, Hossam, and McRyenolds, Richard (1999) "Characterizing the Swelling Potential of Soils via Neuro-Reliability Approach," In Intelligent Engineering Systems Through Artificial Neural Networks, Vol. 9, Dagli, C. H. et. al. (Editors), pp. 1201-1206.

• Najjar, Yacoub and Ali, Hossam (1998) "On the Use of BPNN in Liquefaction Potential Assessment Tasks," In Artificial Intelligence and Mathematical Methods in Pavement and Geomechanical Systems, Attoh-Okine (Editor), pp. 55-63.

• Najjar, Yacoub and Ali, Hossam (1998) "CPT -Based Liquefaction Potential Assessment: A Neuronet Approach," In Geotechnical Earthquake Engineering and Soil Dynamics III, ASCE Geotechnical Special Publication No. 75, Dakoulas, P. et. al. (Editors), Vol. 1, pp. 542-553.

• Najjar, Yacoub M. and Basheer, Imad A. (1996) "A Neural Network Approach for Site Characterization and Uncertainty Prediction," In Uncertainty in the Geological Environment: From Theory to Practice, ASCE Geotechnical Special Publication No. 58, Shackelford, C. D. et. al. (Editors), Vol. 1, pp. 134-148.

• Basheer, Imad A. and Najjar, Yacoub M. (1996) " A Neural Network-Based Distress Model for Kansas JPCP Longitudinal Joints," In Intelligent Engineering Systems Through Artificial Neural Networks, Vol. 6, Dagli, C. H. et. al. (Editors), pp. 983-988.

• Hajmeer, Maha, Basheer, Imad and Najjar, Yacoub (1996) "The Growth of Eschrichia Coli 015:H7- A Backpropagation Network Approach," In Intelligent Engineering Systems Through Artificial Neural Networks, Vol. 6, Dagli, C. H. et. al. (Editors), pp. 635-640.

• Najjar, Yacoub M. and Basheer, Imad A. (1995) " Spatial Mapping of Groundwater Contamination Using Neuronets," In Intelligent Engineering Systems Through Artificial Neural Networks, Vol. 5, Dagli, C. H. et. al. (Editors), pp. 817-822.

• Basheer, Imad A., Najjar, Yacoub M., and Hajmeer, Maha N. (1995) " Adsorption Isotherms of Toxic Organics Assessed by Neural Networks," In Intelligent Engineering Systems Through Artificial Neural Networks, Vol. 5, Dagli, C. H. et. al. (Editors), pp. 829-834.

• Basheer, Imad. A., Najjar, Yacoub M. and Swartz, Stuart E (1994) " Predicting the Permeability of Compacted Clay Using an Artificial Neural Network," Intelligent Engineering Systems Through Artificial Neural Networks, Vol. 4, Dagli, C. H. et. al. (editors), pp. 1161-1166.

 

Published:

• Basheer, Imad A. and Najjar, Yacoub M. (1997) " Modeling Initial Design Process Using Artificial Neural Networks," Discussion Paper, ASCE-Journal of Computing in Civil Engineering, Vol. 11, No. 3, pp. 145.

• Najjar, Yacoub M. and Basheer, Imad A. (1997) " Application of Neural Networks in Stratified Flow Stability Analysis," Discussion Paper, ASCE-Journal of Hydraulic Engineering, Vol. 123, No. 3, pp. 253.

• Najjar, Yacoub M. and Basheer, Imad A. (1996) " Bearing Capacity of Hydrated Geosynthetic Clay Liners," Discussion Paper, ASCE - Journal of Geotechnical Engineering, Vol. 122, No. 12, pp. 1023.

• Najjar, Yacoub M. and Basheer, Imad A. (1996)" Stress-Strain Modeling of Sands Using Artificial Neural Networks," Discussion Paper, ASCE- Journal of Geotechnical Engineering, Vol. 122, No. 11, pp. 949.

• Najjar, Yacoub M. and Basheer, Imad A. (1996) "Artificial Neural Networks and Durability of Sphinx Limestone," Discussion Paper, ASCE-Journal of Materials in Civil Engineering, Vol. 18, No. 3, pp. 179.

• Basheer, Imad A. and Najjar, Yacoub M. (1996) " Operational Strategy for Metal Bioleaching Based on pH Measurements," Discussion Paper, ASCE-Journal of Environmental Engineering, Vol. 122, No. 9, pp. 884.

• Basheer, Imad A. and Najjar, Yacoub M. (1996) "Permeable Barriers to Remove Benzene: Candidate Media Evaluation," Discussion Paper, ASCE-Journal of Environmental Engineering, Vol. 122, No. 9, pp. 885.

• Basheer, Imad A. and Najjar, Yacoub M. (1996) " Modeling Coliform Mortality in Waste Stabilization Ponds," Discussion Paper, ASCE-Journal of Environmental Engineering, Vol. 122, No. 5, pp. 449.

• Basheer, Imad A. and Najjar, Yacoub M. (1996) " Slope Stabilization Using Rubber Tires and Geotextiles," Discussion Paper, ASCE- Journal of Performance of Construction Facilities, Vol. 10, No. 1, pp. 41

• Basheer, Imad A. and Najjar, Yacoub M. (1995) " Prediction of Deep-Bed Filter Performance Using Recursive Algorithms," Discussion paper, ASCE-Journal of Environmental Engineering, Vol. 121, No. 12, pp. 931.

• Basheer, Imad A. and Najjar, Yacoub M. (1995) "Estimating Hydraulic Conductivity of Compacted Clay Liners," Discussion paper, ASCE-Journal of Geotechnical Engineering , Vol. 121, No. 9, pp. 675.

 

Topic: Impact of Raising the Speed Limit on Kansas Highways

• USA Today newspaper: page 12A, in the Across the USA news section: "News from Kansas" on April 27, 1999.

• Kansas City Star newspaper, page B3, in the Mid-America Digest section: article " Speed limits study" on April 27, 1999.

• The Topeka Capitol- Journal newspaper , page B3 , article "Study: Higher speed limit didn't affect accident rate" on April 25, 1999.

• The Manhattan Mercury newspaper, Page A8, article " Highways are faster and just as safe" on April 26, 1999.

• KSNT - news 27 of Topeka in their 6:00 and 10:00 pm news on April 16, 1999.

 

Topic: Modeling the Speed on Two-Lane Kansas Highways by Neural Nets

• Kansas State Collegian newspaper, page 3, article "Professor Helps to Define New Speed Limits" on April 12, 1996.

• KTKA - news 49 of Topeka in their 10:00 pm news on March 20, and 6:00 and 6:30 am news on March 21, 1996.

• The Manhattan Mercury newspaper, front page article "55 mph or Less? He Can Tell" on March 17, 1996.

• The Manhattan Mercury newspaper front page article," State's Approach on New Speeds: Go Slow," on March 14, 1996.

• KTMJ-TV6 of Junction City in their 10:30 pm news on February 13, 1996.
  

• Najjar, Yacoub, Stokes, Robert and Russell, Eugene (2000) "Setting Speed Limits on Kansas Two-Lane Highways: A Neuronet Approach," Accepted for presentation at Transportation Research Board 79th annual meeting, Washington, D.C. January 9-13, 2000, paper # 001549.

• Najjar, Yacoub, Basheer, Imad, Ali, Hossam and McReynlods, Richard (2000) "Swelling Potential of Kansas Soils: Modeling and Validation Using ANN-Reliability Approach," Accepted for presentation at Transportation Research Board 79th annual meeting, Washington, D.C. January 9-13, 2000, paper # 000952.

• Itani, Omar and Najjar, Yacoub (2000) "3-D modeling of Spatial proprties Via Artificial Neural Networks," Accepted for presentation at Transportation Research Board 79th annual meeting, Washington, D.C. January 9-13, 2000, paper # 000799.

• Najjar, Y. M., Ali, H. E. and Basheer, I. A. (1999) "On the Use of Neuronets for Simulating the Stress-Strain Behavior of Soils," In Numerical Models in Geomechanics, Proc. of the 7th Int. Symp. on Numerical Models in Geomechanics, NUMOG VII, September 1-3, 1999, Graz, Austria, Pande, G.N. et al. (Editors), A. A. Balkema, Brookfield, VT, pp. 657-662.

• Najjar, Y. M. and Ali, H. E. (1999) "Simulating the Stress-Strain Behavior of Nevada Sand by ANN," Proc. of the 5th U.S. National Congress on Computational Mechanics (USACM), Boulder, Colorado, August 4-6, 1999, Book of Abstracts, pp.500.

• Najjar, Yacoub, Richard McReynolds, Basheer, Imad and Ali, Hossam (1999) "Assessing the Durability Potential of Aggregate Used in Concrete Pavement Construction: A Neuro-Reliability Approach," CD-ROM Proceedings of the 13th-ASCE Specialty Conference on Engineering Mechanics, Baltimore, Maryland, June 13-15, 1999. pp. 960-953.

• Najjar, Yacoub and Naouss, Wissam (1999) "Finite Element-Based Seepage Design Charts for Sheet Piles Penetrating Heterogeneous Media," Transportation Research Board 78th annual meeting, Washington, D.C. January 10-14, 1999, preprint paper # 990723.

• Basheer, Imad and Najjar, Yacoub (1998) " Modeling Cyclic Constitutive Behavior by Neural Networks: Theoretical and Real Data," Proceedings of the 12th-ASCE Specialty Conference on Engineering Mechanics, La Jolla, California, May 17-20, 1998. pp. 952-955.

• Najjar, Yacoub and Ali, Hossam (1998) "SPT-Based Liquefaction Potential Assessment: an Artificial Neural Network Approach," Proceedings of the 12th-ASCE Specialty Conference on Engineering Mechanics, La Jolla, California, May 17-20, 1998. pp. 960-953.

• Ali, Hossam and Najjar, Yacoub (1998) "Neuronet - Based Approach for Assessing the Liquefaction Potential of Soils," Transportation Research Board 77th annual  meeting, Washington, D.C. January 11-15, 1998, preprint paper # 980529.

• Zaman, Musharraf, Dar-Hao, Chen and Najjar, Yacoub (1997) "Multiaxial Testing and Constitutive Modeling of Coal" Proceedings of the Ninth International Conference on Computer Methods and Advances in Geomechanics, Wuhan, China, November 2-7, 1997, pp. 285-292.

• Russell, E.R., Rys, M., Stokes, R.W., Najjar, Y.M., and Roy, J. L. (1997) "Speed Zone Guidelines Form Multiple Linear Regression Models Using Roadway Characteristics and Area Development," Proceedings of the 1997 Annual Conference of the Canadian Society of Civil Engineers (CSCE), Sherbrooke, Quebec, May 27-30, 1997, pp. 311- 320.

• Najjar, Y.M., Zaman, M. M., Ahern, J. L. and Laguros, J.G. (1997) "Characterization of Ground Subsidence of Abandoned Mines," Proceedings the International Conference on Innovation in Computer Methods for Civil & Structural Engineering, Cambridge, England, August 19-21, 1997, pp. 23-30.

• Najjar, Y. M. and Basheer, I. A. (1997) " Characterizing the Durability of Concrete Pavement Aggregate by Neuronets," In Numerical Models in Geomechanics, Proc. of the 6th Int. Symp. on Numerical Models in Geomechanics, NUMOG VI, July 2-4, 1997, Montreal, Canada, Pitruszczak, S. and Pande, G. N. (Editors), A.A. Balkema A.A., Brookfield, VT, pp. 697-702.

• Najjar, Y. M. and Naouss, W. A. (1997) "Seepage Design Charts for Dams on Heterogeneous Media," In Numerical Models in Geomechanics, Proc. of the 6th Int. Symp. on Numerical Models in Geomechanics, NUMOG VI, July 2-4, 1997, Montreal, Canada, Pitruszczak, S. and Pande, G. N. (Editors), A. A. Balkema, Brookfield, VT, pp. 727-732.

• Najjar, Yacoub M., Basheer, Imad A. and McReynold, Richard (1997) "A Neuronet-Based Approach to Modeling the Durability of Aggregate in Concrete Pavement Construction," Transportation Research Board 76th annual  meeting, Washington, D.C. January 11-16, 1997, preprint paper # 970429.

• Hajmeer, M.N., Najjar, Y.M., Basheer, I.A., Boyle, E.A.E., and Aramouni, F. M. (1996) "Predicting the Aerobic Growth of Shigella Flexneri by Artificial Neural Network," Proc. of the 1996 IFT Meeting, Book of Abstracts, #89 B-2, pp.211.

• Najjar, Yacoub M., Basheer, Imad A. and Ali, Hossam E. (1996) " Modeling Stress-Strain Response of Clay Using Neural Nets," Proc. of the 11th-ASCE Speciality Conference on Engineering Mechanics , Lin, Y. K. and Su, T. C. (Editors), ASCE, New York, NY, pp. 697-700.

• Najjar, Yacoub M., Basheer, Imad A. and McReynold, Richard (1996) "Neural Modeling of Kansas Soil Swelling," Transportation Research Board 1996 meeting, Washington, D.C. January 7-11, 1996, preprint paper # 960977.

• Basheer, Imad A. and Najjar, Yacoub M. (1996) "Reliability-Based Design of Reinforced Earth Retaining Walls," Transportation Research Board 75th annual meeting, Washington, D.C. January 7-11, 1996, preprint paper # 960871.

• Najjar, Yacoub M. and Basheer, Imad. A. (1995) " Neural Networks: Can They Predict the Performance of Adsorption Columns?, "Proc., 27th Mid-Atlantic Conference on Hazardous Wastes, Lehigh University, Bethlehem, PA, pp. 539-547.

• Basheer, Imad A. and Najjar, Yacoub M. (1995) " A Neural Network for Soil Compaction," In Numerical Models in Geomechanics, Proc. of the 5th Int. Symp. on Numerical Models in Geomechanics, NUMOG V, September 6-9, 1995, Davos, Switzerland, Pande, G. N. and Pitruszczak, S. (Editors), A. A. Balkema, Brookfield, VT, pp. 435-440.

• Najjar, Y. M., Zaman, M. M. and Tabbaa, R. (1994) " Constitutive Modelling of Sand: A Comparative Study" Proceedings of the Eight International Conference on Computer Methods and Advances in Geomechanics, Morgantown, West Virginia, May 22-28,1994, pp. 641-646.

• Najjar, Y. M. (1994) "Pile Group Foundation: A Parametric Study" Proceedings of the Eight International Conference on Computer Methods and Advances in Geomechanics, Morgantown, West Virginia, May 22-28, 1994, pp. 2373-2378.

• Najjar, Yacoub, Zaman, Musharraf and Chen, Dar-Hao (1993) " Anisotropic Constitutive Model for Pressure Sensitive Materials" Invited Paper, Proceedings of the 4th International Symposium on Plasticity and Its Current Applications, Baltimore, Maryland, July 19-23, 1993.

• Najjar, Yacoub and Zaman, Musharraf (1993) " Numerical Modeling of Ground Subsidence Due to Mining" 34th U.S. Symposium on Rock Mechanics, Madison, Wisconsin, June 27-30, 1993, pp. 737-740.

• Najjar, Yacoub, Chen, Dar-Hao and Zaman, Musharraf (1993) " Application of Nonlinear Method in Prediction of Ground Subsidence Due to Underground Mining," First Canadian Symposium on Numerical Modeling Application in Mining and Geomechanics, Montreal, Canada, March 27-30, 1993, pp. 140-149.

• Najjar, Yacoub and Zaman, Musharraf (1991) "Constitutive Modeling of Concrete for Nuclear Reactor Application," Proceedings of the 11th International Conference on Structural Mechanics in Reactor Technology, Tokyo, Japan, August 18-23, 1991, Vol. H, pp. 13-18.

• Najjar, Yacoub and Zaman, Musharraf (1991) "On Predicting Ground Subsidence Due to Mining by Nonlinear Finite Element Technique,"Proceedings of the First U.S. National Congress on Computational Mechanics, Chicago, IL, July 21-24, 1991, Book of Abstracts, pp. 179.

• Zaman, M. M., Kukreti, A. R. and Najjar, Y. M. (1989) "An Improved Two-Surface Plasticity Model for Concrete and Rocks Subjected to Three-Dimensional Loading," Proceedings of the 2nd International Symposium on Plasticity and Its Current Application, Japan, July 31-August 4, 1989, pp. 47-50.

• Zaman, M. M., Ahern, J. L. and Najjar, Y. M. (1989) "Stability Analysis and Characterization of Ground Subsidence of Abandoned Lead-Zinc Mines in Northeastern Oklahoma," Proceedings of the 30th U.S. Symposium on Rock Mechanics, Morgantown, West Virginia, June 19-22, 1989, pp. 707-714.

• Najjar, Yacoub, Zaman, Musharraf and Ahern, Judson (1989) "Prediction of Surface Subsidence Caused by Long-Wall Mining Using a Nonlinear Finite Element Procedure," Proceedings of the 3rd International Conference on Numerical Models in Geomechanics, Niagara Falls, Canada, May 8-11, 1989; pp. 557-565.

• Najjar, Y. M. and Zaman, M. M. (1988) "Effect of Loading Sequence and Soil Nonlinearity on the Response of a Pile Group Foundation Using a Three-Dimensional Finite Element Analysis," Proceedings of the 6th International Conference on Numerical Methods in Geomechanics, Innsbruck, Austria, April 11-15, 1988; pp. 1127-1134.

 

  

Notable Technical Presentations

Top

• Najjar, Yacoub "Use of Neural Nets in Pavement Performance Evaluation," Presentation for Workshop on New Issues in Pavement Performance Description/Pavement Management Systems, Funded by Mid-America Transportation Center (MATC), Omaha, Nebraska, February 17, 1999.

• Najjar, Yacoub "Summary of Geotechnical Research Activities at KSU," Presentation at the 3rd USUCGER Workshop, Newport, RI, November 15-17, 1998.

• Najjar, Yacoub "Characterizing Speed on Two-Lane Kansas Highways by Neuronets," Televised presentation for the Mid-America Transportation Center (MATC), September 18, 1997.

• Najjar, Yacoub "Potential Applications of Neural Networks in Transportation Engineering," Oklahoma Department of Transportation, Oklahoma City, July 16, 1996.

• Najjar, Yacoub "Neural Network in Transportation Planning and Management," 78th Annual Kansas Transportation Engineering conference, April 11, 1996.

• Najjar, Yacoub "Neural Networks: Promising Tools or Hoax?" Presentation for:
  - TRB 1995 (A2K05) Committee meeting, Washington, D.C., January 24, 1995.
  - KDOT's Bureau of Materials and Research Team, Topeka, KS, February 22, 1995.

• Najjar, Yacoub "Neural Network Applications in Transportation Engineering," Televised presentation for the Mid-America Transportation Center, October 19, 1995.

• Najjar, Yacoub " Geotextiles and Civil Engineering" Presentation for
  - ASCE Student Mid-Continent Conference. March 10, 1995 at KSU.
  - ASCE-KSU Student Chapter, August 31, 1995 at KSU.

• Najjar, Yacoub "Laboratory Measured Parameters and Field Design," Presentation at the TRB 1994 (A2K05) committee meeting.

• Najjar, Yacoub "Centrifuge and Numerical Modeling of Underground Construction," Presentation at the TRB 1994 (A2K05) committee meeting.

• Najjar, Yacoub "Advancement in Soil Mechanics and Foundation Engineering" lecture for the Bridge Design Workshop #2: Bridge Substructure and Foundation, held at KSU, October 14,1994.

• Najjar, Yacoub "Numerical Modeling of Ground Subsidence and Neural Net Applications" Jordan University of Science and Technology, Irbid, Jordan, August 6, 1994.

• Zaman, M. M., Kukreti, A. R. and Najjar, Yacoub "An Anisotropic Constitutive Model for Concrete and Rocks, " Presented at the 79th Annual Meeting of the Oklahoma Academy of Science (OAS), Tulsa, November 9, 1990.

• Najjar, Y. M., Zaman, M. M. and Faruque, M. O."A Single Surface Plasticity Model for Rocks and Concrete," Presented at the 78th Annual Meeting of the OAS, Edmond, OK, November 10, 1989.

• Najjar, Y. M., Zaman, M. M. and Kukreti, A. R. "Prediction of Stress-Strain Response of Concrete Under Three-Dimensional Loading by a Two-Surface Constitutive Model," Presented at the 77th Annual Meeting of the OAS, Chickasha, OK, November 11, 1988.

• Najjar, Y. M. and Zaman, M. M. "Mine Subsidence Prediction by Finite Element Method," Presented at the 76th Annual Meeting of the OAS, Alva, OK, November 13, 1987.

• Najjar, Y. M. and Zaman, M. M. "Three-Dimensional Nonlinear Behavior of Pile Group Foundation: Effect of Loading Sequence," Presented at the 75th Annual Meeting of the OAS, Tahlequah, OK, November 14, 1986.

 

 

• Stokes, R., Najjar, Y., Russell, E., Rys, M., Roy, J., Basheer, I. and Ali, H. (1998) "Speed Zone Guidelines Using Roadway Characteristics and Area Development ", Final report, Report No.: K-TRAN: KSU 96-3, Submitted to Kansas Department of Transportation, 73 pages (with software).

• Najjar, Yacoub M. and Basheer, Imad A. (1998) "Modeling of Soil Swelling via Regression and Neural Network Approaches," Final report, Report No.: KS 98-1, Submitted to Kansas Department of Transportation, 37 pages (with software).

• Najjar, Yacoub M. and Basheer, Imad A. (1997) " Modeling the Durability of Aggregate Used in Concrete Pavement Construction: A Neuro-Reliability-Based Approach," Final report: Report No.: KS 97-3, Submitted to Kansas Department of Transportation, 37 pages (with software).

• Najjar, Yacoub M. and Basheer, Imad A. (1996) " Modeling of Portland Cement Concrete Pavement Longitudinal Joint Distress," Final report: Report No.: K-TRAN: KSU 95-4, Submitted to Kansas Department of Transportation, 145 pages (with software).

• Najjar, Y. M., Zaman, M. M. and Kukreti, A. R. (1990) "Three-dimensional Testing and Constitutive Modeling of an Oklahoma Coal for Effective Mine System Design and Ground Control," Final report submitted to Oklahoma Mining and Mineral Resources Research Institute (OMMRRI), University of Oklahoma, 80 pages.

• Najjar, Yacoub Mohammad (1990) "Constitutive Modeling and Finite Element Analysis of Ground Subsidence Due to Mining," PhD Dissertation, University of Oklahoma, Norman, OK, 282 pages.

• Zaman, Musharraf, Kukreti, Anant and Najjar, Yacoub (1988) "Development of a Constitutive Model for Predicting Yielding and Failure Behavior of Rocks Under Three-Dimensional Loading," Final Report submitted to the Energy Resources Institute, Oklahoma, August, 99 pages.

• Zaman, M. M., Najjar, Y. M. and Karagappa, N. (1987) "Ground Subsidence in Oklahoma Due to Mining: Potential Problems and Numerical Modeling," Final Report submitted to the OMMRRI, Oklahoma, August, 86 pages.

• Najjar, Yacoub Mohammad (1986) "Three-Dimensional Nonlinear Finite Element Analysis of Pile Groups," Master's Thesis, University of Oklahoma, Norman, OK, 254 pages.