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 Expert  721942

Expert in Dynamic Systems: Mathematical Modeling, Analysis, Simulation, Control

Available for your Consulting and Expert Witness Needs

Colorado (CO)
Education Work History Career AccomplishmentsPublicationsConsulting Services Expert Witness

Summary of Expertise:

Listed with other top experts in: 

Expert has designed and taught courses on overall control theory, robust control, and optimal control. He has done research on crop growth chamber precision control, on VTOL supersonic aircraft robust control for transition to and from hover. Unique and unusual estimation and control experience includes bicycle stabilization, guidance, and remote control, tape drive speed control, and homing rocket optimal control.

He has designed and taught courses in electromechanical systems modeling, fluid mechanics and fluid systems modeling, thermodynamics and thermal systems modeling, instrumentation, the mathematics of dynamic systems, and interdisciplinary systems modeling.

He has designed and taught courses on estimation theory and uses the optimal stochastic estimation and control method on a regular basis. He has done definitive work in making parameter estimation by repeated integration maximally accurate, exposing and remedying many of the principal sources of error. He is experienced in applying the so-called maximum likelihood parameter estimation theory.

Expert is an expert in the use of the software MATLAB and MATHEMATICA for analysis and simulation. His experience in systems modeling, model analysis, and simulation includes: biosystems, including Monod food chain persistence, competition of Monod consumers, special resource consumption, and the Monod food chain. While at the NASA Ames Research Center, he directed these capabilities to R&D in self-replicating peptide dynamics and to the population dynamics of the microbe Pseudomonas fluorescens and systems of other microbes.


electrical-mechanical system


fluid mechanics


instrumentation process


mathematical modeling






control theory


control loop


control system




estimation theory




control system analysis




biological modeling


biotechnology modeling

Show Only Primary Areas of Expert Consulting

Secondary Expertise
adaptive control, advanced vehicle control system, aircraft control system, aircraft gas-turbine engine control system, analog output, applied aerodynamics, applied mathematics, applied mechanics, automation control, automotive cruise control system, Bernoulli equation, Bernoulli theorem, chemical reaction mechanism, command guidance, conformal mapping, control loop dynamic analysis, control process, control system design, control system Kalman filter, control system performance evaluation, control systems science, controller tuning, control-system direct-current motor, control-system modeling, digital control system, discrete-event simulation, dynamic modeling, dynamic process simulation, dynamics, electromechanical control, electromechanical control system, electromechanical design, fluid compressibility, fluid compression, fluid flow measurement, fluid mechanics, hydrostatic pressure, instrument, instrumentation (equipment), instrumentation process, internal flow, linear system, liquid level control, mathematical analysis, mathematical model, mathematical theory, Matlab, petroleum refinery simulation, pneumatics, process chemical control system, process simulation, servomechanism, signal arrival direction estimation, space simulation, spacecraft control system, statistical simulation, steering system, system modeling, thermodynamic law, thermodynamic process, time estimation, vibration simulation

Basic Expertise
air flow, aviation science, biochemical mass-transfer modeling, chemical engineering mathematical modeling, digital signal processing, drag reduction, electrical utility plant process engineering, electromagnetic switch, electronics, energy conservation, fluid boundary layer, fluid channel, fluid mechanics permeability coefficient, fluidic control device, fluid-power transmission, friction, mass flow quantity, printing press control system, switching system, thermodynamic process optimization, thermodynamic variable, thermodynamics
Expert may consult nationally and internationally, and is also local to the following cities: Denver, Colorado;  Colorado Springs, Colorado;  Aurora, Colorado;  Fort Collins, Colorado;  Arvada, Colorado;  Westminster, Colorado;  Boulder, Colorado;  Greeley, Colorado;  Longmont, Colorado;  and Cheyenne, Wyoming.

Year   Degree   Subject   Institution   Honors
1966   Ph.D.   Mechanical Engineering   University of Arizona   NASA Traineeship
1961   M.S.   Mechanical Engineering   Southern Methodist University  
1956   B.S.   Mechanical Engineering   Rice University  
1955   B.A.   Liberal Arts   Rice University  

Work History:
Years   Employer   Department   Title   Responsibilities

2000 to


(Undisclosed Consulting Company)





He conducts R&D in systems development and dynamic systems theory including aerospace systems, biosystems, organic chemical systems, economic systems, and ecological systems models.

1999 to 2000







He did R&D in mathematical analysis-mass reaction kinetics, mathematical modeling of bacteria growth in bioprocessors; and mathematical analysis of the dynamics of nonlinear systems.

1993 to 1999


Lockheed-Martin Engineering & Science Services Company


Life Sciences


Engineering Generalist


He worked on R&D in mathematical modeling, analysis, simulation, and space crop growth system development.

1991 to 1993


The Bionetics Corporation


Scientific Services


Research Systems Control Scientist


He was involved with R&D in mathematical modeling, analysis, and simulation. He also worked on space crop growth system development.

1966 to 1991


The University of Texas at Arlington


Mechanical Engineering


Professor of Mechanical Engineering


He developed the course schedule and content for the graduate automatic control program and conducted research in automatic control.

Career Accomplishments:

He is a member of IEEE, ASME, ISEM, and the Society of the Sigma Xi.


He is a Registered Professional Engineer (Texas #27572).

Professional Appointments

He is a past Chair, Santa Clara (CA) County Section IEEE Control Systems Society Chapter. He has held other offices in that organization as well.


He was awarded the Best Paper of Session of the American Control Conference. He was awarded a Summer Faculty Fellowship through the California Institute of Technology and one through Stanford University.

Publications and Patents Summary

He has over 100 publications.

Selected Publications and Publishers  
 - Ecological Modelling  
 - Advances in Space Research (Pergamon)  
 - Advances in Space Research  
 - The American Automatic Control Council  
 - The Journal of Optimization Theory and Applications  

Government Experience:
Years   Agency   Role   Description
2000 to   NASA Ames Research Center   Consultant   He engages in R&D in chemical system dynamics modeling, analysis, and simulation.
1999 to 2000   NASA Ames Research Center   Consultant   He provided dynamic systems expertise for the development of closed, controlled crop growth research chambers.
1993 to 1999   NASA Ames Research Center   Employee of engineering and science service contractor   He provided expertise in advanced systems control methods for a number of systems of concern to NASA: Advanced life support systems, centrifuge automatic balancing systems, etc.
1991 to 1993   NASA Ames Research Center   Employee of contract service provider.   He was a lead person in the development of space research closed controlled crop growth research chambers.

Consulting Services:
Selected Consulting Examples:
  • He applied his dynamic systems modeling, model analysis, and simulation skills to the question of pre-life peptide self replication dynamics issues
  • He applied his systems control expertise and familiarity with a crop growth research chamber to the composition of an operator's manual for such a crop growth research chamber.
  • He applied his expertise with advanced systems control methods to the stabilization and control problem of a supersonic VTOL system.
  • He applied his expertise with advanced systems control methods to the development of a homing missile guidance and control system.
  • He applied his modeling, analysis, and control expertise to the modeling and simulation of microbe growth in a laboratory bioreactor.
Recent Client Requests:
  • Process controls expert for consulting on biomedical control optimization for a temperature control system algorithm.
  • Mathematical modeling expert for consulting on experimental design, mathematical modeling.
Click the green button above to contact Expert for a free initial screening call regarding your expert consulting needs.  Expert is available for consulting to corporate, legal and government clients.  Remember, your initial screening call to speak with Expert is free.

Expert Witness:
Click the green button above to contact Expert for a free initial screening call regarding expert testimony, litigation consulting and support, forensic services, or any related expert witness services.  A few litigation needs include product liability, personal injury, economic loss, intellectual property (patent, trademark, trade secret, copyright), and insurance matters.  Remember, your initial screening call to speak with Expert is free.

Language Skills:
Foreign Language   Description
German   His knowledge of German is sufficient to read technical literature in his field. Weak conversation; enough to 'survive' with a dictionary.
French   He can speak and read at a "survival" level.

Additional Skills and Services:

He has organized and participated in seminars and conferences in his field.

Supplier and Vendor Location and Selection

He has considerable experience in finding vendors to supply components for prototype space research systems.


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