Distinguished Professor
Director, New Jersey Center for Engineered Particulates
York Center for Environmental Engineering and Science
973-596-5860, Room 220 YCEES
rajesh.n.dave@njit.edu
NSF REU at NJCEP

Education

•  Utah State University, PhD 1983
•  Utah State University, MS.1981
•  Indian Institute of Technology Bombay, BTech 1978

Academic and Research Appointments

•  Computer Engineering, University of Missouri, Columbia, Missouri,  (Aug. 1994 - Dec. 1994)
•  Assistant Professor, Mechanical Engineering, New Jersey Institute of Technology, Newark, New Jersey, (Sept. 1985 - June 1992)
•  Research Assistant Professor, Mechanical Engineering, Utah State University, Logan, Utah,  (Sept. 1983 - June 1985)

Current Research Interests

Particle Technology: Modeling and development of novel techniques for dry particle coating and manufacturing of engineered particles. Ultrafine particle mixing using dry methods. Discrete Element Modeling (DEM) and numerical simulations of particle flows and processes. Granulation with minimal use of liquids. Particle transport and handling/Flow and delivery from hoppers. Some of the past projects include: Development of non-intrusive particle tracing technique for granular flow experiments. Development of motion analysis algorithms for high speed optical imaging of three-dimensional particle collisions. Pattern recognition and cluster analysis techniques to detect micro-structure in granular flows.

Pattern Recognition/Cluster Analysis/Image Processing : Research includes fuzzy clustering algorithms, robust clustering, clustering of relational data, application of robust statistical techniques in cluster analysis, shape detection in noisy data, generalization of fuzzy clustering algorithms for multi-characteristic shape detection, e.g. hyper-spherical/ellipsoidal shells as cluster prototypes, or adaptive clustering. Issues of cluster validity are also addressed. Clustering methods and evidence collection techniques are used for lines, curves and arc detection in digital images. These algorithms are also used in reverse engineering through development of CAD models from image sensor data. Machine vision applications are also considered.

Selected Publications

•   J. Yang, A. Sliva, A. Banerjee, R. N. Dave and R. Pfeffer, “Dry Particle Coating for Improving the Flowability of Cohesive Powders”, Powder Technology, Special Issue in Memory of Prof. Molerus, to appear, 2005.
•  Qun Yu, Jose Quevedo, Rajesh N. Dave, Robert Pfeffer, Chao Zhu, “Fluidization of Nanoparticle Agglomerates with the Assistance of Magnetic Particles in an Oscillating Magnetic Field,” AICHE Journal, Vol 51: 1971–1979, July 2005.
•  S. S. Dukhin, Rajesh N. Davé, R. Pfeffer, Y. Shen,  “Droplet mass transfer, intradroplet nucleation and submicron particle production in two phases flow of solvent-supercritical antisolvent emulsion”, Colloids and Surfaces A, Volume 261, Issues 1-3, Pages 163-176, July 2005.
•  T. S. Ward, W. Chen, M. Schoenitz, R. N. Dave, and E. L. Dreizin, “A Study of Mechanical Alloying Processes using Reactive Milling and Discrete Element Modeling,” Acta Materialia, Volume 53, Issue 10, Pages 2909-2918, June 2005.
•  S. S. Dukhin, Chao Zhu, Rajesh N. Dave, Qun Yu, “Hydrodynamic Fragmentation of Nanoparticle Aggregates at Orthokinetic Coagulation,” Advance in Colloid and Interfacial Science, Volumes 114-115, Pages 119-131, June 2005.
•  Milind Misra, Amit Banerjee, Rajesh N. Davé, and Carol A. Venanzi, “Novel feature extraction technique for fuzzy relational clustering of a flexible dopamine reuptake inhibitor,” Journal of Chemical Information and modeling, 45(3); 610-623, April 2005.
•  Chao Zhu, Qun Yu, Robert Pfeffer, Rajesh N. Dave, “Gas Fluidization Characteristics of Nanoparticle Agglomerates,” AICHE Journal, Vol. 51(2), pp. 426-439, February 2005.
•  Y. Wang, R. Pfeffer, R. N. Dave, R. Enick, “Polymer Encapsulation of Fine Particles by a Supercritical Antisolvent Process,” AICHE Journal,  Vol. 51(2), pp. 440-455, February 2005.
•  Baohua Yue, J. Yang, Y. Wang, M. Huang, R. Dave and R. Pfeffer, “Particle Encapsulation with Polymers via in-situ Polymerization Supercritical CO2”, Powder Technology, Volume 146, Issues 1-2, pp. 32-45, August 2004.
•  W. Chen, R. Dave, R. Pfeffer, O. Walton, “Numerical Simulation of Mechanofusion System,” Powder Technology, Volume 146, Issues 1-2, pp. 121-136 , August 2004.
•  Caroline Nam, R. Pfeffer, R. Dave, S. Sundaresan, “Aerated Vibrofluidization of Silica Nanoparticles”, AICHE Journal, Vol 50 (8), pp. 1776-1785, August 2004.
•  S. Watano, H. Nakamura, K. Hamada, Y. Wakamatsu, Y. Tanabe, R. N. Dave, R. Pfeffer, “Fine Particle Coating by a Novel Rotating Fluidized Bed Coater,” Powder Technology, Volume 141, Issue 3, Pages 172-176, March 2004.
•  G. Liu, Q. Yu, C. Zhu, R. Pfeffer, R. Dave, “Sound Assisted Fluidization of Nanoparticle Agglomerates”, Powder Technology, Volume 141, Issues 1-2, Pages 119-123, March 2004.
•  S. Dukhin, J. Yang, R. Dave, R. Pfeffer, “Deactivated sintering by particle coating: The significance of static and dynamic surface phenomena,” Colloids and Surfaces A, Vol. 235, 83-99, March 2004.
•  Ajit Mujumdar, D. Wei, R. N. Dave, R. Pfeffer and C. Wu, “Improvement of Humidity Resistance of Magnesium Powder Using Dry Particle Coating,” Powder Technology, Vol 140, no. 1-2, pp 86-97, February 2004.
•  Y. Wang, R. N. Dave, R. Pfeffer, “Polymer Coating/Encapsulation of Nanoparticles Using a Supercritical Anti-solvent (SAS) Process,” Journal of Supercritical Fluids, Vol. 28 (1), pp. 85-99, January 2004.
•  S. S. Dukhin, C. Zhu, R. Dave, R. Pfeffer, J. J. Luo, F. Chaves, Y. Shen, “Dynamic interfacial tension near critical point of a solvent-antisolvent mixture and laminar jet stabilization,” Colloids and Surfaces, Vol. 229 (1-3), pp. 181-199, November 2003.
•  J. Yang, Y. Wang, R. N. Dave, R. Pfeffer, “Mixing of Nano-particles by Rapid Expansion of High-Pressure Suspensions,” Advanced Powder Technology, Volume 14, No. 4, pp. 471-493, August 2003.
•  R. N. Dave, W. Chen, A. Mujumdar, W. Wang, R. Pfeffer, “Numerical Simulation of Dry Particle Coating Processes by DEM,” Advanced Powder Technology, Volume 14, No. 4, pp. 449-470, August 2003.
•  F. Chavez, P. G. Debenedetti, J-J. Luo, R. Dave, R. Pfeffer, “Estimation of the characteristic time scales in the supercritical antisolvent process,” Industrial and Engineering Chemistry Research, vol. 42(13), pp. 3156-3162, June 2003.
•  Ajit Mujumdar, M. Malik, R. N. Dave, “Numerically-simulated flow characteristics of particulate beds in oscillating sectorial containers,” Powder Technology, Vol. 133(1-3), pp. 91-105, August 2003.
•  S. Watano, Y. Imada, K. Hamada, Y. Wakamatsu, Y. Tanabe, R. N. Dave, R. Pfeffer, “Micro-granulation of Fine Powders by a Novel Rotating Fluidized Bed Granulator,” Powder Technology, vol. 131 (2-3), pp. 250– 255, April 2003.
•  M. Ramlakhan, R. N. Dave and R. Pfeffer, “Promotion of Deactivated Sintering by Dry Particle Coating”, AICHE Journal, Volume 49, Issue 3, pp. 604-618, March 2003.
•  R. N. Dave and S. Sen, “Robust Fuzzy Clustering of Relational Data”, IEEE Trans. Fuzzy Systems, Vol. 10, No. 6, pp. 713-727, December 2002.
•  D. Wei, R. N. Dave, and R. Pfeffer, "Mixing and Characterization of Nanosized Powders: An Assessment of Different Techniques" Journal of Nanoparticle Research, Invited Review Contribution, Vol. 4, pp. 21-41, 2002.
•  Y. Wang, D. Wei, R. N. Dave, R. Pfeffer, M. Sauceau, J-J. Letourneau, and J. Fages, “Extraction and Precipitation Particle Coating Using Supercritical CO2,” Powder Technology, Vol. 127, No. 1, pp. 32– 44, November 2002.
•  P. Singh, T.K.S. Solanky, R. Mudryy, R. Pfeffer and R. N. Dave, “Estimation of Coating Time in the Magnetically Assisted Impaction Coating Process,” Powder Technology, Vol. 121, No. 2-3, pp. 159-167, November 2001.
•  R. Pfeffer, R. N. Dave, D. Wei and M. Ramlakhan, “Synthesis of Engineered Particulates with Tailored Properties Using Dry Particle Coating”, Powder Technology, Vol. 117, pp. 40-67, 2001.
•  S. Watano, Y. Imada, K. Miyanami, C.-Y. Wu, R. N. Dave, R. Pfeffer and T. Yoshida, “Surface Modification of Food Fiber by Dry Particle Coating”, Journal of Chemical Engineering Japan, Vol.33, No.6, pp. 848-854, 2000.
• R. N. Dave, C-Y. Wu, B. Chaudhuri and S. Watano “Magnetically Mediated Flow Enhancement for Controlled Powder Discharge of Cohesive Powders”, Powder Technology, Vol. 112, No. 1-2, pp. 111-125, 2000.
•  M. Ramlakhan, C-Y. Wu, S. Watano, R. N. Dave and R. Pfeffer “Dry Particle Coating Using Magnetically Assisted Impaction Coating (MAIC): Modification of Surface Properties and Optimization of System and Operating Parameters”, Powder Technology, Vol. 112, No. 1-2, pp. 137-148, 2000.
•  S. Watano, R. Pfeffer, R. N. Dave and W. Dunphy, “Dry Particle Coating by a Newly Developed Rotating Fluidized Bed Coater,” AIChE Symposium, Advanced Technology for Fluid-Particle System, vol. 321, No. 95, pp.112-116, 1999.
• R. N. Dave, A. Rosato, and I. S. Fischer, “Non-Intrusive Particle Tracking System for Particulate Flows and Vibrated Granular Beds”, Particulate Science and Technology: An International Journal, pp. 125-139, Vol. 17, Number 1-2, January-June 1999.
• Wu, C-Y., S. Watano and R. N. Davé, "Magnetically Enhanced Powder Discharge from Storage under High Consolidation," Powder Handling and Processing, Vol. 10(4), pp. 357-361, October/December 1998.
• Davé, R. N. and B. G. Bukiet, "Non-Intrusive Rigid Body Tracking Technique for Dry Particulate Flows, Part I: Theoretical Aspects," Review of Scientific     Instruments, Vol. 69(10), pp. 3598-3505, 1998.
•  Davé, R. N., J. Volcy, J. Agarwal, V. Gupta,  "Non-Intrusive Rigid Body Tracking Technique for Dry Particulate Flows, Part II: Practical Aspects,"  Review of Scientific Instruments, Vol. 69(10), pp. 3506-3513,  1998.
•  R. N. Dave, I. S. Fischer, J. Luke, R. Pfeffer, and A. D. Rosato, “Particle Technology Concentration at NJIT: An NSF-CRCD Program” Chemical Engineering Education, Vol. 32(2), pp. 102-107, 1998.
•  Labous, L., A. D. Rosato and R. N. Davé, “Measurements of Collisional Properties of Spheres Using High-speed Video Analysis,” Physical Review E, Vol. 56, No. 5, pp. 5717-5725, November 1997.
•  Vanel, L., A. D. Rosato and R. N. Davé, “Rise Regimes of a Large Sphere in Vibrated Bulk Solids”,  Physical Review Letters, Vol. 78, No. 7, pp. 1255-1258, 1997.
•  Davé, R. N. and R. Krishnapurum, "Robust Clustering Methods: A Unified View," IEEE Trans. Fuzzy Systems, Vol. 5, No. 2, pp. 270-293, May 1997.
•  Davé, R. N., “Validating Fuzzy Partitions Obtained through C-Shells Clustering”,  Pattern Recognition Letters, Vol. 17, No. 6, pp. 613-623, 1996.
•  Kim, J., R. Krishnapurum, R. N. Davé, “Application of the Least Trimmed Squares Technique to Prototype-Based Clustering”,  Pattern Recognition Letters, Vol. 17, No. 6, pp. 633-641, 1996.

 Awards and Honors

•  Robert W. Van Houten Award for Excellence in Teaching, NJIT, 2004
•  Honorable Mention in Category of Excellence in Teaching at Upper Level, NJIT, 2002.
•  Newark College of Engineering Innovation in Engineering Education Award for 1999.
•  K. S. Fu Award from North American Fuzzy Information Processing Society (NAFIPS), June 1999.
•  Teacher of the Year Award, Mechanical Engineering Department, 1994.
•  Outstanding Paper award in category of Applications of Fuzzy Sets at NAFIPS'91 conference.

Professional Activities

•  Associate Editor, IEEE Transactions on Fuzzy Systems.
•  Member of IEEE, ASME, NAFIPS.
•  Member of Phi Kappa Phi, Pi Tau Sigma.
•  Board of Directors, NAFIPS (North American Fuzzy Information Processing Society) – 1998-2000.
•  General Chair, NAFIPS’99: 18th International Conference of North American Fuzzy Information Processing Society, New York City, June 10-12, 1999.
•  Chair, A Symposium on Particle Technology at NJIT, Newark, New Jersey, March 25-26, 1999