Mr. Ragan is a professor in the Department of Engineering in the Martin D. Walker School of Engineering and Technology at Olivet. Before joining the Olivet faculty, his academic experience included a position in the Architectural Program at Drury University in Springfield, MO, a summer teaching assignment at Washington University in St. Louis, MO, and a teaching assignment at University of Arkansas in Fayetteville, AR. He is currently working on a PhD with the University of Arkansas.
Courses he teaches at Olivet include Statics, Dynamics, Mechanics of Materials, Reinforced Concrete Design, and Steel Design.
Mr. Ragan has been a member of the American Society of Civil Engineers (ASCE) since 1995.
His professional experience outside the classroom includes engineering positions with Technical Engineering Consultants (TEC) in Knoxville, TN, Stanley D. Lindsay and Associates (SDA) in Nashville, TN, EFI Global in Addison, IL, and Unified Investigations and Sciences in Memphis, TN. He is licensed as a Professional Engineer (PE) in eighteen states and as a Structural Engineer (SE) in Illinois.
He and his wife, Jeni, are the parents of four children: Emily, Ethan, Evan, and Emory. Outside of work, time is spent with the children supporting their many musical and sports activities. Currently, he is active at his church, Second Baptist Church in Springfield, Missouri.
Dr. Agajanian joined Olivet’s full-time faculty in 2018. His areas of expertise are circuit design and analysis, communications, digital electronics, robotics and computer networking.
Encouraging females to pursue STEM careers was the topic of his dissertation. Colorado State University is using his dissertation as an exemplary one for its Ph.D. program.
One of his passions is encouraging pre-college students to pursue STEM careers. “I enjoy applying modern teaching methods in engineering to maximize learning,” he says. “Developing long-lasting mentoring relationships with students is important to me. My goal is to motivate them to become lifelong learners and help them reach their God-given potential.”
His professional experience includes 30 years of teaching at university and community college levels. He enjoys an innovative teaching environment using state-of-the-art classroom delivery methods, such as active, blended, online, hands-on, project-based, inquiry-based and team-teaching. He has previously taught courses in the fields of biomedical engineering technology, Cisco Academy networking, microprocessors, microcontrollers, advanced manufacturing engineering technology, PLCs, math, statistics and physics.
As a Program Evaluator (PEV) for ABET, he evaluated electrical engineering technology programs and provided ABET Accreditation for colleges and universities. He is a recipient of the ABET Project Appreciation award.
At DeVry University, Dr. Agajanian served as chair of the Electronics Engineering Technology Department and chair of the “TAC of ABET” Committee for five years. For 10 years, he worked in the field of electrical engineering at IBM, GE Corporation and others. This depth of knowledge enhances his teaching and delivery methods.
He is the co-author of two books, “Troubleshooting Electronics” (published by McGraw-Hill) and “Technology in the Classroom and Online Learning” (published by Rowman and Littlefield). He has also published numerous articles related to STEM and nanotechnology.
He is a member of the International Electrical and Electronics Engineers (IEEE) member and the American Society for Engineering Education (ASEE). He has served as a judge in Science, Technology, Engineering and Math (STEM) school project, competitions sponsored by the Illinois Technology Foundation (ITF), and in U.S. FIRST Robotics competitions.
An Armenian Christian, Dr. Agajanian was born in Istanbul, Turkey. He attended Armenian Christian secondary schools and graduated from high school as a valedictorian. He then attended Robert College (Bogazici University) in Istanbul. Upon receiving a scholarship, he transferred to the University of Rochester (New York) to study electrical engineering. During his leisure time, he enjoys traveling, swimming, hiking, biking and cross-country skiing.
One of his favorite Bible verses is: “And we know that in all things God works for the good of those who love him, who have been called according to his purpose” (Romans 8:28).
Dr. Ritzema joined Olivet’s full-time faculty in 2018, teaching courses in civil and environmental engineering, technical communications and experimental design. His areas of expertise include water resources planning and management, as well as analysis of coupled human-environmental systems.
“For most of the past 12 years, I’ve had one foot in the engineering world and the other in international research,” he says. “From this, I believe I bring a unique perspective to both.”
His professional experience includes 14 years in research and engineering practice. In California, he worked in water resources engineering. In Southeast Asia and East Africa, he held several international applied research positions that focused on poverty, food security and natural resource management issues in the developing world.
Dr. Ritzema and his wife, Cristina, are the parents of five children. For relaxation, he enjoys fishing (or at least he will, when time eventually allows for it).
His favorite Scripture passage is Ephesians 1:18–19: “I pray that the eyes of your heart may be enlightened in order that you may know the hope to which He has called you, the riches of His glorious inheritance in the saints, and His incomparably great power for us who believe.”
Dr. Williamson currently serves as the Executive Director of Corporate Engagement for Olivet Nazarene University’s Walker School of Engineering and Technology. He also serves as an adjunct professor in the McGraw School of Business at Olivet and the Ed.D. program in Olivet’s School of Graduate and Continuing Studies (SGCS). Before this assignment, he was Dean of the SGCS from 2010 to2012.
Prior to his service at Olivet, he was a Professor of Organizational Leadership and Associate Dean at the George Jetter School of Business at Mount Vernon Nazarene University (MVNU) in Mount Vernon, Ohio. He served at MVNU from 1994 to 2010 as an administrator, faculty member and Associate Dean.
A graduate of Olivet, he continued his education as a graduate teaching assistant in the Department of Speech Communication at Ball State University while completing a M.A. degree. In 2002, he completed the Doctor of Education in Educational Leadership (Ed.D.) degree from the University of Sarasota, Florida. In 2007, he completed a certification program in Fundraising Management at Indiana University.In 2008-09, was a post-doctoral student in the Department of Marketing and Logistics, Fisher College of Business at The Ohio State University.
Dr. Williamson has taught several graduate courses, including: Management Communication, Organizational Behavior, Change Management, Foundations of Management, Strategic Management, Management Ethics and Leadership.
With a total of over 25 years of professional experience in higher education and leadership, Dr. Williamson has served as a presenter and speaker at numerous national conferences on subjects related to management, marketing and student enrollment. He has also served as an organizational consultant and executive coach to higher education, business and industry.