Publications
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Refereed Journals:

Maerz, N. H., Youssef, A. M., Otoo, J. N., Kassebaum, T. J., and Duan, Y., 2011.  A simple method for measuring discontinuity orientations from terrestrial LIDAR images.  Submitted to Environmental and Engineering Geoscience, April 19, 2012.

Maerz, N. H., Magner, K, and Guardiola, I. 2011.  Geotechnical Variability and Determining Optimum Number of Samples for Testing using Monte Carlo Simulations.  Submitted to Geotechnical and Geological Engineering, Nov. 4, 2011.

Maerz, N. H., Kassebaum, T., Williams, D., Shea, K., Duan, Y., Xi, Y., Li, X., 2011. Visualizing and modeling interior spaces of dangerous structures using LiDAR Submitted to The International Journal of Safety and Security Engineering,  July 2011.

Youssef, A., and Maerz, N. H., 2010. Development, justification and verification of a rock fall hazard rating system. Bulletin of Engineering Geology and the Environment. Online first,  http://www.springerlink.com/content/r0mun2203rl51278/, 16 pp.

Youssef, A. M, and Maerz, N. H., 2009. Slope stability hazard assessment and mitigation methodology along eastern desert Aswan-Cairo Highway, Egypt.  Journal of King Abdulaziz University Earth Sciences, vol. 20, no. 2, pp. 161-179.

Youssef, A. M., Maerz, N. H., and Hassan A. M., 2009: Remote sensing applications to geological problems in Egypt: Case study, slope instability investigation, Sharm El-Sheikh / Ras-Nasrani Area, Southern Sinai. Landslides, 10.1007/s10346-009-0158-3, 8 pp.

Youssef, A., Maerz, N. H., and Qinfang, X., 2007. Rocksee: Video image measurements of physical features to aid in highway rock cut characterization. Computers & Geosciences, v. 33, no. 3, pp 437-444..

Maerz, N. H., Youssef, A., and Fennessey, T. W., 2005.  New risk-consequence rock fall hazard rating system for Missouri highways using digital image analysis. Environment and Engineering Geoscience, v. xi, no. 3, pp. 229-250.

Maerz, N. H., and Palangio, T. W., 2004.  Post-muckpile, pre-primary crusher, automated blast fragmentation sizing.   FRAGBLAST, The International Journal For Blasting and Fragmentation, v. 8, no. 2, June 2004.

Maerz, N. H., 2004. Technical and computational aspects of the measurement of aggregate shape by digital image analysis. Journal of Computing in Civil Engineering, v. 18, no. 1, pp. 10-18.

Latham J-P, Kemeny , Maerz , Noy , Schleifer , Tose , 2003. A blind comparison between results of four image analysis systems using a photo-library of piles of sieved fragments. FRAGBLAST - The International Journal for Blasting and Fragmentation, v. 7., no. 2, pp. 105-132.

Zhou, W., and Maerz, N. H., 2002.  Implementation of multivariate clustering methods for characterizing discontinuites from oriented boreholes.   Computers  & Geosciences, v. 28, no. 7, pp. 827-839.

Zhou, W., and Maerz, N. H., 2002.  Identifying the optimum drilling direction for characterization of discontinuous rock.   Environment & Engineering Geoscience, v. VII, no. 4, pp. 295-307.

Maerz, N. H., Chepur, P, Myers, J., J., and Linz, J., 2001.  Concrete roughness measurement using laser profilometry for fiber reinforced polymer sheet application.   Transportation Research Record, no, 1775, pp. 132-139.

Maerz, N. H., and Zhou, W., 2000. Calibration of optical digital fragmentation measuring systems.   FRAGBLAST, The International Journal For Blasting and Fragmentation, v. 4, no.2, pp. 126-138.

Maerz, N. H., and McKenna, S., 1999. Mobile highway inventory and measurement system. Transportation Research Record no. 1690, pp. 135-142. 

Maerz, N. H., and Zhou, W., 1998. Optical digital fragmentation measuring systems - inherent sources of error.  FRAGBLAST, The International Journal for Blasting and Fragmentation, v. 2,  no.. 4, pp. 415-431.

Maerz, N. H., Ibarra, J. A., and Franklin, J. A., 1996. Overbreak and underbreak in underground openings. Part 1: Measurement using the light sectioning method and digital image processing. Journal of Geotechnical and Geological Engineering, v.14, pp. 307-323.

Ibarra, J. A., Maerz, N. H., and Franklin, J. A., 1996. Overbreak and underbreak in underground openings. Part 2: Causes and implications. Journal of Geotechnical and Geological Engineering, v. 14, pp. 325-340.

Baosheng, W, Franklin, J. A., and Maerz, N. H., 1991. Jointing photoanalysis and its application in Prince Edward County, Ontario. Chinese Journal of Rock Mechanics and Engineering, v. 27, pp. 149-168.

Franklin, J. A., Ibarra, J., and Maerz, N. H., 1990. Blast overbreak measurement by light sectioning. Int. J. of Min. and Geol. Eng., v. 7, pp. 323-331.

Maerz, N. H., Franklin, J. A, and Bennett, C. A., 1990. Joint roughness measurement using shadow profilometry. Int. J. of Rock Mech. Min. Sci. & Geomech. Abst, v. 27, pp. 329-343.

Franklin, J. A., Maerz, N. H., and Bennett, C. A., 1988. Rock mass characterization using photoanalysis. Int. J. of Min. and Geol. Eng., v. 6, pp. 97-112.

 

Refereed Conferences

Otoo, J. N., Maerz, N. H., Xiaoling, L, and Duan, Y., 2011.  3-D Discontinuity orientations using combined optical Imaging and LiDAR techniques.  Proceedings of the 45th US Rock mechanics Symposium, San Francisco, CA, June 26-30, 2011, 9 pp.

Yongjian, X., Xiaoling, L., Ye, D., and  Maerz, N., 2011.  Virtual Navigation of Interior Structures by Lidar, SPIE Conference on Defense, Security, and Sensing 2011.  Orlando, FL,, April 25-29 2011, 7 pp.

Maerz, N. H., Magner, K. A., Likos, W. J., Loehr, J. E., Ding, D., and Millar, A. 2010.  Evaluating properties of weak shales in western Missouri.  Proceedings of the 44th US Rock mechanics Symposium, Salt Lake City, Utah, June 27-30, 2010, 13 pp.

Maerz, N. H., and Hilgers, M. C., 2010. A method for matching fractured surfaces using shadow profilometry. Third International Conference on Tribology and Design 2010, May 11-13, 2010, Algarve, Portugal, pp. 237-248.

Myers, J.J., Shen, X., and Maerz, N, 2007.  Effect of varied surface roughness, putty thickness, and concrete strengthon the interfacial bond strength of FPR to Concrete.  Transportation Research Board, 86th Annual Meeting, Washington, D.C., Jan. 21-25, 2007, 18 pp.

Matana, M., Galecki, G., Maerz, N, and Nanni, A., 2005.  Concrete substrate preparation and characterization prior to adhesion of externally bonded reinforcement.  Proceedings of the International Symposium on Bond Behavior of FRP in structures, 7pp.

Maerz, H. H., and Zhou, W., 2005.  Multivariate clustering analysis of the ECRB cross drift discontinuities, Yucca Mountain Project.  Alaska Rocks, Proceedings of the 40th US Rock Mechanics Symposium, Anchorage Alaska, June 25-29, 2005, 10 pp

Walker, C. P., Maerz, N., and Hilgers, M. G. 2005.  Surface reconstruction using shadow profilometry. Proceedings of the 2005 ACM Symposium on Applied Computing (Santa Fe, New Mexico, March 13 - 17, 2005). L. M. Leibrock, Ed. SAC '05. ACM Press, New York, NY, pp. 1250-1251.

Maerz, N. H., Galecki, G., Nanni, A., 2004.  Experimental non-destructive testing of FRP materials, installation, and performance, Dallas County bridge, Missouri, USA. 16th World Conference on Nondestructive Testing, Montreal, Canada, Aug. 30-Sep. 3, 2004, 8 pp.

Maerz, N. H., Youssef, A., and Xiang, Q., 2003.  Digital imaging for screening and making measurements of features on highway rock cuts.    Transportation Research Board, 82nd Annual Meeting, Washington, D.C., Jan. 12-16, 2003, 20 pp.

Maerz, N. H., Niu, Q., 2003.  Automated mobile highway sign visibility measurement system.  Transportation Research Board, 82nd Annual Meeting, Washington, D.C., Jan. 12-16, 2003, 19 pp.

Galecki, G., Maerz, N., Nanni, A., and Myers, J.  Concrete substrate preparation with waterjets for repair and strengthening of concrete.  Pacific Rim International Conference on Water Jetting Technology, Oct. 27-29, 2003, Jeju Island, Korea, pp. 245-255.

Niu, Q., Maerz, N.H., and Ercal, F., 2002.  Automated mobile highway sign retroreflectivity measurement.   Annie 2002, St. Louis, MO, Nov. 10-13, 2002, 9 pp.

Shen, X., Myers, J.J., Maerz, N., Galecki, G., 2002.  Effect of Surface Roughness on the Bond Performance Between FRP Laminates and Concrete.  Proceedings of the Second International Conference (CDCC 02) “Durability of Fiber Reinforced Polymer (FRP) Composites for Construction”, Montreal, Quebec, Canada, pp. 607-616.

Galecki, G., Maerz, N., Nanni, A, and Myers, J., 2001.  Limitations to the use of waterjets in concrete substrate preparation.  Proceedings of the 2001 WTJA American Waterjet Conference, Minneapolis Minnesota, Aug. 18-21, 11 pp.

Zhou, W., and Maerz, N. H., 2001.  Multivariate clustering analysis of discontinuity data: implementation and applications. Rock Mechanics in the National Interest;  Proceedings of the 38th U.S. Rock Mechanics Symposium, Washington, D.C., July 7-10, 2001, pp 861-868.

Maerz, N. H., Chepur, P, Myers, J., J., and Linz, J., 2001.  Concrete roughness measurement using laser profilometry for fiber reinforced polymer sheet application.   Presented at the, Transportation Research Board 80th  Annual Meeting, Jan. 7-11 2001, 12 pp.

Maerz, N. H., and Lusher, M., 2001.  Measurement of flat and elongation of coarse aggregate using digital image processing.   Presented at the, Transportation Research Board 80th  Annual Meeting, Jan. 7-11 2001, 13 pp.

Maerz, N. H., and Kim, W., 2000.  Potential use of ground penetrating radar in highway rock cut stability.   Geophysics 2000, 9 pp.

Maerz, N. H., and Zhou, W., 2000.  Discontinuity data analysis from oriented boreholes. Pacific Rocks;  Proceedings of the Fourth North American Rock Mechanics Symposium, Seattle, Washington, July 31- Aug.1, 2000, pp. 667-674.

Maerz, N. H., and Zhou, W., 1999.   Calibration of optical digital fragmentation measuring systems.  FRAGBLAST 6, Sixth International Symposium For Rock Fragmentation By Blasting, Johannesburg, South Africa, Aug. 8-12 1999, pp. 125-130.

Maerz, N. H., and Palangio, T. C., 1999.  WipFrag System II - Online fragmentation analysis.  FRAGBLAST 6, Sixth International Symposium For Rock Fragmentation By Blasting, Johannesburg, South Africa, Aug. 8-12 1999, pp. 111-115.

Palangio, T. C. and Maerz, N. H., 1999.   Case studies using the WipFrag image analysis system..  FRAGBLAST 6, Sixth International Symposium For Rock Fragmentation By Blasting, Johannesburg, South Africa, Aug. 8-12 1999, pp. 117-120.

Maerz, N. H., and Zhou, W., 1999.   Multivariate analysis of bore hole discontinuity data.  Rock Mechanics for Industry, Proceedings of the 37th US Rock Mechanics Symposium, Vail Colorado, June 6-9, 1999., v. 1, pp. 431-438.

Maerz, N. H., and Swindall, B., and Davies, C., 1999. Automated real time pavement marking retroreflectivity measurements. Presented at the Transportation Research Board, 78th Annual Meeting, Jan 10-14, 1999.

Maerz, N. H., and McKenna, S., 1999. Mobile highway inventory and measurement system. Presented at the Transportation Research Board, 78th Annual Meeting, Jan 10-14, 1999.

Maerz, N. H., 1996. Reconstructing 3-D block size distributions from 2-D measurements on sections. Proceedings of the FRAGBLAST 5 Workshop on Measurement of Blast Fragmentation, Montreal, Quebec, Canada, 23-24 Aug., 1996, pp. 39-43.

Maerz, N. H., 1996. Image sampling techniques and requirements for automated image analysis of rock fragmentation. Proceedings of the FRAGBLAST 5 Workshop on Measurement of Blast Fragmentation, Montreal, Quebec, Canada, 23-24 Aug., 1996, pp. 115-120.

Maerz, N. H., Palangio, T. C., and Franklin, J. A., 1996. WipFrag image based granulometry system. Proceedings of the FRAGBLAST 5 Workshop on Measurement of Blast Fragmentation, Montreal, Quebec, Canada, 23-24 Aug., 1996, pp. 91-99.

Maerz, N. H., Germain, P., 1996. Block size determination around underground openings using simulations. Proceedings of the FRAGBLAST 5 Workshop on Measurement of Blast Fragmentation, Montreal, Quebec, Canada, 23-24 Aug., 1996, pp. 215-223.

Franklin, J. A., and Maerz, N. H., 1996. Empirical design and rock mass characterization. Proceedings of the FRAGBLAST 5 Workshop on Measurement of Blast Fragmentation, Montreal, Quebec, Canada, 23-24 Aug., 1996, pp. 193-201.

 

Non-Refereed Conferences, Symposia, Journals

Otoo, J. H., Maerz, N. H., Duan, Y., and Xiaoling, L, 2011.   LiDAR and optical imaging for 3-D fracture orientations. NSF CMMI Research and Innovation Conference 2011, Jan 4-7 2011, Atlanta GA, 8 pp.

Duan, Y., Xiaoling, L, Maerz, N. H., Otoo, J. H.,  2011.   Automatic 3D Facet Orientations Estimation from LIDAR Imaging NSF CMMI Research and Innovation Conference 2011, Jan 4-7 2011, Atlanta GA, 5 pp.

Loehr, J.E., J.J. Bowders, W.J. Likos, B.L. Rosenblad, R. Luna, L. Ge, N. Maerz, and R.W. Stephenson, 2010. MoDOT research program to improve design of bridge foundations.  Foundation Drilling, Vol. 31, No. 1, December/January 2010 Issue, pp. 57-65.

Maerz, N. H., Palangio, T. C., Palangio, T. W., and Elsey, K., 2007.  Optical sizing analysis of blasted rock: lessons learned. 2007 European Federation of Explosives Engineers, Vienna Conference Proceedings 2007,  pp. 75-82.

Palangio, T. W., Palangio, T. C., and Maerz, N. H., 2005.  Advanced optical blast fragmentation sizing and tracking.  2005 European Federation of Explosives Engineers Brighton Conference Proceedings, pp. 259-267.

Maerz, N. H., Youssef, A., and Lauer, R., 2004.   MORFH RS:  A rockcut rating system for Missouri highways.  55th Highway Geology Symposium, Kansas City, Missouri, Sep. 7-10,  2004,  pp 406-424.

Maerz, N. H., Palangio, T. W., and Palangio, T. C., 2004.  Imaging process control for mining and cominution of construction materials.  Planetary & Terrestrial Mining Sciences Symposium, NORCAT, Subury, June 9-11, 2004, 6 pp.

Youssef, A.,  Maerz, N. H.,  and, Fritz, M. A., 2003.  A risk-consequence rockfall hazard rating system for Missouri highways.   54th Highway Geology Symposium, Burlington, Vermont, Sep. 24-26,  2003,  pp 175-195.

Maerz, N. H., Nanni, A.,  Myers, J. J., and Galecki, G., 2001.  Laser Profilometry for concrete substrate characterization prior to FRP laminate application.  Concrete Repair Bulletin, May-Jun. 2001, pp. 4-8.

Maerz, N. H., 2001.  Automated online optical sizing analysis.  SAG 2001Conference Proceedings, Sep. 29-Oct. 3, Vancouver, Canada,, pp. II250- 269.

Maerz, N. H., 2000.  Highway rock cut stability assessment in rock masses not conducive to stability calculations.  Proceedings of the 51st Annual Highway Geology Symposium, Aug. 29-Sept. 1, Seattle, Washington, pp. 249-259.

Maerz, N. H., and Palangio, 2000. Online fragmentation analysis for grinding and crushing control.   Control 2000 Symposium, 2000 SME Annual Meeting, March 1, 2000, Salt Lake City, Utah, SME, pp. 109-116.

Maerz, N. H., 1999. Online fragmentation analysis: Achievements in the mining industry.  Center For Aggregates Research (ICAR) Seventh Annual Symposium Proceedings, Austin Texas, April 19-21, pp. C1-1-1 to B1-1-10.

Maerz, N. H., and Zhou, W., 1999. Flat and elongated:  Advances using digital image analysis.  Center For Aggregates Research (ICAR) Seventh Annual Symposium Proceedings, Austin Texas, April 19-21, pp. B1-4-1 to B1-4-12.

Maerz, N. H., 1998. Aggregate sizing and shape determination using digital image processing.  Center For Aggregates Research (ICAR) Sixth Annual Symposium Proceedings, St. Louis, Missouri,  April 19-20, pp. 195-203.

Franklin, J. A, Maerz, N. H., and Santamarina, C. 1995. Developments in blast fragmentation measurement. Proc. 21 Ann Conf. on Explosives and Blasting Techniques, Feb. 6-10, 1995.

Palangio, T. C., Franklin, J. A., and Maerz, N. H., 1995. WipFrag - A breakthrough in fragmentation measurement. Proc. 6th High-Tech Seminar on State of the Art Blasting Technology, Instrumentation, and Explosives, Boston, Mass., pp. 943-971.

Maerz, N. H., and Germain, P., 1992. Block size determination around underground openings using simulations based on scanline mapping. Proc. Fractured and Jointed Rock Masses, Lake Tahoe, June, 1992, 8 pp.

Maerz, N. H., and Franklin, J. A., 1990. Roughness scale effect and fractal dimension.  Proc. 1st Int. Workshop on Scale Effects in Rock Masses, Loen, Norway, pp. 121-126.

Maerz, N. H., Bennett, C. P., Dony, B. A., 1987. Microcomputer image analysis of rock fabric. 1st. Can. Symp. on Microcomputer Applications to Geotechnique., Regina, Canada, pp. 269-275.

Maerz, N. H., Dusseault, M. B., Gillham, R. W., 1987. An economical field datalogger. 1st. Can. Symp. on Microcomputer Applications to Geotechnique., Regina, Canada, pp. 33-39.

Maerz, N. H., Franklin, J. A., Rothenburg, L., and Coursen, D. L., 1987. Measurement of rock fragmentation by digital photoanalysis. ISRM. 6th Int. Cong. on Rock Mechanics, Montreal, Canada, v 1, pp. 687-692.

Franklin, J. A., and Maerz, N. H., 1987. Photographic measurements of jointing and fragmentation. Proc. 2nd Int. Symp. Field Measurements in Geomechanics, Kobe, Japan, v 1 pp. 1-11.

Maerz, N. H., Franklin, J. A., and Coursen, D. L. 1987. Fragmentation measurement for experimental blasting in Virginia. S.E.E., Proc. 3rd. Mini-Symposium on Explosives and Blasting Research, Miami, Feb. 5-6, pp. 56-70.

Franklin, J. A., and Maerz, N. H., 1986. Digital photo-analysis of rock jointing. Insitu Testing and Field Behaviour: 39th Canadian Geotechnical Conference, pp. 11-20.

 

Abstracts, Books, Maps, Invited Presentations

Aqeel, A., Maerz, N., and Anderson, N. 2012. Mapping Fractures in Vertical Rock Cuts Using a 400 MHz Ground Penetrating Radar Antenna. The 25th Symposium on the Applications of Geophysics to Engineering and Environmental Problems (SAGEEP). March 25-29, 2012; Tucson, AZ. USA.

Maerz, N. H. 2011.  Distance education classes in geological engineering at Missouri University of Science and Technology.  Invited presentation, Educators Forum, SME, Denver CO, Feb. 27, 2011.

Maerz, N. H., 2005.  Creating simple but effective multimedia on-line classes.  Presented at the Teaching Renewal Conference, University of Missouri, Columbia, MO, Feb. 25, 2005

Maerz, N. H., 2004. Digital surface roughness measurement.  Invited Presentation to the Surface Preparation Committee, International Concrete Repair Institute meeting, San Franciso, CA,  Oct. 21-22, 2004.

Maerz, N. H., Youssef, A., and Lauer, R., 2004.   MORFH RS:  A rockcut rating system for Missouri highways.  AEG 47th Annual Meeting, Dearborn, Michigan,  Sept. 26-Oct. 2, 2004.

Maerz, N.H., 2004.  Development of a Highway Rock Cut Rating System (MORFH RS) For Missouri Highways.  Transportation Engineers Association of Missouri 94th Annual Conference, April 1, Branson, Missouri.

Maerz, N. H., and Youssef, A., 2003. Risk-consequence hazard rating system for Missouri highway rock cuts.   AEG 46th Annual Meeting, Vail, Colorado, Sept. 15-21, 2003.

Maerz, N. H., 2002. Concrete roughness characterization using laser profilometry.  Invited presentation to the TRB committee A2C07 ( Structural Fiber Reinforced Plastics), Transportation Research Board, 82nd Annual Meeting, Washington, D.C., Jan. 12-16, 2003.

Maerz, N. H., 2002. Concrete roughness characterization using laser profilometry.  Invited Presentation to the Surface Preparation Committee, International Concrete Repair Institute meeting, Phoenix Az, Oct. 24-26, 2002.

Maerz, N. H., and Youssef, A., 2002. Mobile vision system for screening and evaluation of highway rock cut stability problems.   AEG 45th Annual Meeting, Reno, NV, Sept. 23-29, 2002.

Maerz, N. H., 2001. Advances in rock mechanics/rock engineering.  AEG 44th Annual Meeting , St. Louis, MO, Oct. 3-5, 2001.  (Invited presentation with abstract).

Maerz, N. H., 2000.  Reducing rock damage in blasting operations: Geology.  Mexican Society of  Rock Mechanics Meeting, Mexcio City, Mexico (Invited presentation).

Smalley, I. J., and Maerz, N. H., 1985. Sensitive clays - Particle theory revisited. Manchester Conference on Geomorphology. (Abstract).

Maerz, N. H., and Smalley, I. J., 1985. The nature and properties of very sensitive clays: A descriptive bibliography. University of Waterloo Bibliographic Series, no. 12, 135 pp.

LaFleur, J., Maerz, N., Dressler, B., 1982. Precambrian geology of Cascaden Township. Ontario Geological Survey Map P-02525, 1:15840.

LaFleur, J., Maerz, N., Dressler, B., 1982. Precambrian geology of Dowling Township. Ontario Geological Survey Map P-02526, 1:15840.

LaFleur, J., Maerz, N., Dressler, B., 1982. Precambrian geology of Trill Township. Ontario Geological Survey Map P-02527, 1:15840.

 

Thesis Titles

Maerz, N. H. 1990. Photoanalysis of rock fabric. Ph. D. Thesis, Dept. of Earth Sciences, University of Waterloo, 227 pp.

Maerz, N. H. 1985. A microprocessor controlled field data acquisition device. M.Sc. Project Report, Dept. of Earth Sciences, University of Waterloo, 143 pp.

Maerz, N. H. 1981. Analysis of Stripa fracture system using computer code FRACTAN. B.Sc. Thesis, Dept. of Earth Sciences, University of Waterloo, 204 pp.