Meet Some of AIChE’s Newly Elected Fellows

18/34   in the series AIChE Recently Elected Fellows

The rank of Fellow is AIChE’s highest grade of membership and is achieved only through election by the Board of Directors. Nominated by their peers, candidates for AIChE Fellow must have significant chemical engineering experience (generally 25 years), must have demonstrated significant service to the profession, and must have been a member of AIChE for at least 10 years.

Here are some of the recently elected Fellows. More Fellows will be introduced in future issues of CEP and here on ChEnected.

David E. Block

David E. Block is the Marvin Sands Department Chair in Viticulture and Enology at the Univ. of California, Davis, where he holds the Ernest Gallo Endowed Chair. His research has addressed fermentation optimization methods and metabolic engineering of yeast for improved wine production, as well as recent work on single-plant resolution irrigation sensing and control. He played a key role in designing the UC Davis LEED Platinum Teaching and Research Winery. He gained early experience working on process development and manufacturing of biopharmaceuticals at Hoffmann-La Roche. He has also been a leader of AIChE’s Food, Pharmaceutical, and Bioengineering Div.

Connect with David on Engage.


Leonidas Constantinou

Leonidas Constantinou is Shell’s Projects and Technology Operational Safety Team Lead for Europe and Africa. He has 25 years of technical, operational, project, and leadership experience in the upstream and downstream oil and gas industries with a foundation in safety and the environment. He is also Shell’s subject matter expert for product design based on thermodynamic properties and principal investigator on a property estimation method that uses the conjugation principle. He is the author of international industry standards on process and operational safety. He earned his PhD in chemical engineering at the Univ. of Maryland.

Connect with Leonidas on Engage.


Juergen Hahn

Juergen Hahn is head of the Dept. of Biomedical Engineering at Rensselaer Polytechnic Institute, where he also holds an appointment in the Dept. of Chemical and Biological Engineering. His research interests include systems biology and process modeling and analysis, and he has more than 140 peer-reviewed articles in print. He serves as deputy editor-in-chief of the Journal of Process Control, as editor of the journal Optimal Control: Applications and Methods, and as associate editor of the journal Control Engineering Practice. He is also on the editorial board of AIChE’s Journal of Advanced Manufacturing and Processing and has been a trustee of CACHE Corp. since 2014.

Connect with Juergen on Engage.


Thelma G. Manning, P.E.

Thelma G. Manning, P.E., is a research chemical engineer at the U.S. Army Combat Capabilities Development Command Armaments Center, Picatinny Arsenal. She is an authority on gun charges, cartridges, and solid rocket motor propellants, and has 14 patents and nearly 70 publications to her credit. She is a board member of the International Ballistics Society and a reviewer for numerous propellant and engineering journals and proceedings series. A leader of AIChE’s North Jersey Section, she earned her PhD in chemical engineering at New Jersey Institute of Technology. She is also a licensed Professional Engineer in New Jersey.

Connect with Thelma on Engage.


C. Stewart Slater

C. Stewart Slater is Professor Emeritus and Founding Chair of the new Chemical Engineering Dept. in Rowan Univ.’s Engineering College. Throughout his 36 years in academia — first at Manhattan College and since 1995 at Rowan — he has sought out opportunities to invigorate the teaching of chemical engineering with new methods and ideas in the areas of membrane technology and green and sustainable engineering, as well as by designing innovative laboratories and curricula. His service to AIChE includes involvement with the Tappan Zee Section and as a session and topical conference chair for numerous AIChE Annual Meetings.

Connect with C. Stewart on Engage.


Barbara Ann Todd

Barbara Ann Todd is principal engineer and separations team lead at Phillips 66 Research Center (Bartlesville, OK). She holds several patents in separations and performs process engineering for more than 150 distillation projects each year. She has represented Phillips 66 at the Process Science and Technology Center and at Fractionation Research Inc., and is a member of the Univ. of Missouri Chemical Engineering Dept.’s Industrial Advisory Board. She is also a long-time officer in AIChE’s Bartlesville Section and has chaired AIChE’s Women in Chemical Engineering Committee. She received a BS and MS in chemical engineering at Oklahoma State Univ.

Connect with Barbara on Engage.