Shahid “Bobby” Rauf, P.E, C.E.M, MBA

Mr. Bobby Rauf is the President, Chief Consultant and a Senior Instructor at Sem-Train, LLC. Mr. Rauf has over 25 years of experience in teaching undergraduate and postgraduate Engineering, Science, Math, Business Administration and MBA courses, seminars, and workshops. Mr. Rauf earned his BS in Electrical Engineering, with honors, from NC State University, Raleigh, NC, USA. He earned his Executive MBA degree from Pfeiffer University Misenheimer, NC, US. Mr. Rauf is registered (PE) Professional Engineer, in the State of North Carolina (License/Reg. # 021995) and is a Certified Energy Manager.

Mr. Rauf was inducted as “Legend in Energy” by AEE, in 2014. He is a published author of multiple engineering and energy books and professional development courses. He holds a patent in process controls technology. Mr. Rauf is a member of ASEE, American Society of Engineering Education.

Mr. Rauf is certified to instruct various engineering, ergonomics, and industrial safety courses. He has conducted certification training and trained engineers for Professional Engineering licensure exams in the United States, The United Kingdom, Kingdom of Saudi Arabia, The Netherlands and Ukraine, over the past ten years.

Bobby seems very knowledgeable and passionate about what he is presenting. He is very good at using real-life experiences to illustrate or clarify how some of these concepts can be implemented.

Bobby, I would like to say that even though I am not an engineer (and the math made me question my current occupation), I am really glad that I took this class. You have helped me to dissect and visualize some of the terms and concepts that were not tangible to me prior to this class.

The Reference Manual, Solutions Manual, notes, and the dedication is what I liked best about the program. Mr. Rauf is excellent.

Anthony Darmiento, PE

Mechanical and Industrial/Systems Engineer with over 25 years of experience in the marine and facilities engineering fields. Provided design support and logistics analysis for the development of new facilities/assets, and modification of existing systems.

Boris Shvartsberg, Ph.D., P.E., P.M.P.

Dr. Shvartsberg is an engineering and project management professional with more than 35 years of practical experience in managing and supervising of highly complicated technical projects for utility companies in USA and Latvia. He has extensive teaching experience in the European and US colleges and universities. Mr. Shvartsberg is an author of more than 25 publications on electrical engineering and project management subjects. He made numerous successful presentations at International conferences and symposiums.

Sri Susarla, Ph.D., PE, MBA

Currently working as an independent consultant, training engineers in the preparation for FE and PE exams, conducted by NCEES. I have trained more than 1500 engineers throughout the US, and overseas (KSA), with a passage rate of more than 90%, on the first attempt. The notes for FE and PE were developed over a period of three years. These notes consist of problems the students can be expected to solve in the NCEES exam.

Gennaro J. (Jerry) Maffia

After twenty years as a process engineer and manager in the petrochemical industry, mostly with Atlantic Richfield, Inc., Gennaro (Jerry) Maffia joined Widener University in the fall of 1992 as Chairman of the Department of Chemical Engineering. In 2010, Prof. Maffia retired from Widener as Emeritus Professor joined his alma mater, Manhattan College, as Professor of Chemical Engineering. He served as Interim Department Chair at Manhattan from 2014 to 2016. In the fall of 2016, Prof. Maffia received grants for Process Intensification from the Department of Energy.

Kim L. Craven, PE

Ali Pilehvari, Ph.D., P.E.

Dr. David T. Williams

As a Professional Engineer, Dr. David T. Williams has held registrations in eight states and the District of Columbia. Dr. Williams is currently serving as the President of David T. Williams and Associates, Engineers, LLC, in Fort Collins, CO. He has held leadership posts in various governmental and private firms. Dr. Williams has served as expert witness in myriad litigations. He has received numerous awards from governmental and private organizations.


David T. Williams and Associates (DTW) is a certified MBE, SBE, DBE and Disabled Veteran owned business. Dr. David Williams, the president of DTW, has over 40 years of experience in the water resources industry and is known nationally and internationally for his contributions to the industry. He served as Principal-in-Charge for several FEMA flood insurance studies in San Diego and Orange counties. He has written the new HEC- 6 User Manual for the U.S. Corps of Engineers Hydrologic Engineering Center, performed HEC-6 and local scour analysis of pipeline crossings in Arizona and New Mexico, headed the Keene Ranch groundwater modeling study and the Nile River sedimentation evaluations for the World Bank. He is well versed in the computer programs HEC-1, HEC-HMS, HEC-2, HEC-RAS, HEC-6, STORM, and WQRRS.


Dr. Williams is also a nationally recognized expert in sedimentation engineering and in developing innovative solutions to difficult hydraulic and hydrologic design problems in rivers and estuaries.


Dr. Williams previously served as a two-time President of the International Erosion Control Association. He has served as chair of the ASCE Task Committee on Analysis of Laboratory and Field Sediment Data Accuracy and Availability. He is also a past chair of the ASCE Sedimentation, Computational Hydraulics, Stream Restoration, and Probabilistic Committees. He served as a committee member of ASTM A05.12 (Wire specifications), where he helped develop the standards for both welded and twisted (woven) gabions.  He also served on ASTM D18.25 (Erosion Control Products), where he helped develop a variety of standards related to erosion control. While chair of the Federal Interagency Technical Committee on Sedimentation when Dr. Williams was with the U.S. Army Corps of Engineers, he worked with hydraulic and sedimentation experts from the Federal Highway Administration, Bureau of Reclamation, U.S. Geological Survey, Bureau of Land Management, Forest Service, TVA, Bureau of Land Management and the Agricultural Research Service. His work with the Committee involved developing sediment sampling equipment and sediment data collection methods. He is the author of more than 100 technical papers and reports on hydraulics and sedimentation. Dr. Williams was formerly an Associate Editor of the ASCE Journal of Hydraulic Engineering, as well as a reviewer. He was selected the 1993 Small Business Person of the Year by the Carlsbad, California Chamber of Commerce, and served as chair of the Carlsbad Beach Erosion Committee.


His professional experience includes more than eighteen years as a hydraulic engineer with the U.S. Army Corps of Engineers at the Waterways Experiment Station (WES,, now ERDC) in Vicksburg, Mississippi, both the Nashville and Baltimore Districts, and the Hydrologic Engineering Center (HEC) in Davis, California. While at WES, Dr.Williams worked on research applications of sediment transport in rivers and reservoirs and the solution of unusual hydraulic and sediment related problems using computer models and other state-of-the-art techniques. He also worked on the development of the cohesive and network versions of the HEC-6 sediment transport computer model and wrote the Reservoir Sedimentation Chapter in the U.S. Corps of Engineering Manual on Sedimentation Investigations. At the Nashville District, Dr. Williams performed erosion control and sedimentation studies for the Tennessee-Tombigbee Waterway Project and also conducted sedimentation and floodplain information studies of proposed flood control projects. He was acting Chief of the Hydrology and Hydraulics Section at the Baltimore District Corps of Engineers. During the mid 1970’s, Dr. Williams worked at HEC, helping in the development of spatial data management techniques, evaluation of the economic benefits of flood control projects, and sedimentation in rivers and reservoirs.


Dr. Williams has been a frequent short course instructor for ASCE, Federal and State Agencies for computer training workshops on using HEC-2, HEC-RAS, HEC-HMS and HEC-6. In addition, he has taught short courses on channel bed scour for toe protection design, sediment transport, fluvial geomorphology, risk and uncertainty, bridge scour and streambank protection.

Mohammad Ayub, P.E., S.E.

Mr. Ayub is a registered Professional Engineer in the State of Maryland. Mr. Ayub serves as the Director of Engineering in the Directorate of Construction, OSHA National Office, Washington DC. He manages a program for investigating and inspecting catastrophic construction incident sites involving fatalities which receive national attention.  Conducts structural analyses for causal determination of the incidents as per generally recognized industry practices.  Recommends measures to stabilize failed structures.  Determines areas for safe entrance for first responders. Develops program to preserve evidence for laboratory tests and examination. Mr. Ayub provides technical support to OSHA regional and area offices, and to various directorates on matters relating to civil and structural engineering. Furthermore, Mr. Ayub, interacts with national engineering and safety organizations and associations to enhance safety in construction.  Acts as lead coordinator for OSHA’s structural emergency response team.  Leads OSHA’s group for prevention through design.

Mr. Ayub has co-authored “Forensic Structural Engineering Handbook”. Two editions published by McGraw Hill in 2000 and 2004, and multiple incident investigation reports.

He received OSHA’s highest recognition award in 2015 for having performed over 75 major construction incident investigations in the last 25 years.

Received Engineer of the Year award in 1991 from the National Society of Professional Engineers.

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