Daniel E. Rivera, Ph.D.

👀 Our scoping review of formal modelling to develop/refine psychological theory is now published in @healthpsychrev tandfonline.com/doi/full/10.10… 🌟 @_ambercopeland @DanielERivera19 @ehekler @NHankonen et al

@CoryMSimon @CoryMSimon thank you! Your u(t) response is not a discontinuity, but a non-zero initial move from the controller (and physically realizable). The cont. signal is received by an actuator, which would have its own dynamics (but these can be fast). Will follow up over email.

I showed my class your Tweet and explained how/why the manipulated variable should also be considered when defining 'optimal' control! 😀 great point, I should incl. the manipulated variable in this animation as well. v2 attached! (the changes in the manipulated variable do not seem too excessive, besides the [arguably] un-physical discontinuity at time zero).

simulating the closed-loop response [to a set point change] of the liquid level in a tank under PID control. (🔊 on) (for my process control class)

@CoryMSimon I can think of two “categories” of ChE courses: 1. Any course that focuses exclusively on the steady-state (a “figment of the imagination”, in the words of the late Babatunde Ogunnaike). 2. Any course that does not have a meaningful computational component.

name one course you would omit from the undergraduate ChemE curriculum. I'll go first: process design. 👿

@CoryMSimon @CoryMSimon , anyone saying process control would be foolish…they would certainly be unaware of industrial and social realities that require understanding and addressing change over time.

no one may dare to say 'process control', since I teach that class. 🤭

@CoryMSimon @CoryMSimon, the manipulated variable (which in your example could very well be a valve position that sets the inlet flow q(t)) can be subject to "wear and tear" and other operating restrictions that have their own set of specs. I will email you an example used in my classes.

@DanielERivera19 I see---like, placing bounds on the manipulated input, penalizing its rate of change because it puts attrition on the control element, penalizing opening the valve because the liquid costs $, etc.? please send me notes on an example functional if you have one!

🏆 today's process control class is a competition! $50 Chipotle gift card for the winning team. I give time series data characterizing the impulse response of the process. students then design a PI controller for making set point changes. I'll score each team via a time-integral of the error of the closed-loop response to a set point change with their PI controller params. (I possess the true transfer function model; they do not.)

Our #optimization colleagues (@mbuman @DanielERivera19 ) are searching for an Adaptive #Intervention Design Methodologist (open rank) to play a central role in the Precision Health Research Initiative and Biostatistics Core at @ASU. Apps due 12/4: apply.interfolio.com/116230

Otro artículo preparado que ya puedes consultar, Un esquema de decisiones para actividad física basado en control predictivo por modelo híbrido: ilustración con Just Walk de @DanielCev1 , @cesar_martinm , El Mistiri, M., @DanielERivera19 y @ehekler polipapers.upv.es/index.php/RIAI…

Daniel E. Rivera, an #ASUEngineering professor of chemical engineering, was named Fellow of the American Institute of Chemical Engineers to recognize his contributions in chemical engineering, process control and education. fullcircle.asu.edu/faculty/contri…

@ehekler @UCSD Way to go, Eric! Very glad to hear these news.

As of today, I was promoted to Full Professor & Interim Associate Dean for Community Partnerships @UCSD's HW School of Public Health Funny how excited I felt when getting tenure/assoc prof and how self-conscious I feel sharing full prof/assoc dean (Imposter syndrome)

@asuriselab @ASU Congratulations, Wenlong!

I am glad to share the news that I will be promoted to associate professor with tenure at @ASU starting in fall 2021. This is really a team effort with the tremendous support from my family, current and former students, colleagues, and the university. Thank you very much! (1/2)

I am pleased to share that I was named a Fellow of the Society of Behavioral Medicine (@BehavioralMed) during the closing ceremony of a fantastic virtual meeting, held April 11-16 #SBM2021. It is still possible to register and watch recorded sessions. fullcircle.asu.edu/faculty/rivera…

Don't forget to register for @BehavioralMed's virtual meeting: sbm2021.expotracker.net/home.aspx! It's only 3 weeks away! I'll miss being in person, but I've been so impressed by the work of @DrDoriRD, the rest of the program committee and @SBMPresident and can't wait to learn and connect!

Computational modeling approaches can be applied with intensive longitudinal data on physical activity to refine behavioral theories and improve interventions. | Journal Club questions included! From @conroylab and colleagues ow.ly/RCd950BAxEj

I would like to share the notice of my upcoming "Mind the Gap" webinar later this month, organized by the NIH Office of Disease Prevention. This webinar complements the one presented by friend and collaborator Eric Hekler @ehekler in June of 2019. prevention.nih.gov/education-trai…

New paper online w C Lagoa, @ehekler and @DanielERivera19 on “Engineering Person-Specific Behavioral Interventions to Promote Physical Activity” in Exercise and Sport Sciences Reviews journals.lww.com/acsm-essr/Full…

@SBMPresident @BehavioralMed I think the SBM Board of Directors has made the right decision; there is too much uncertainty surrounding COVID-19 to allow for an effective face-to-face meeting. Starting to plan now for a virtual meeting is a prudent action, in my opinion.

As a leading public health org, @BehavioralMed recognized the necessity of committing to fully virtual now for #SBM2021. Check out our statement here: sbm.org/meetings/2021/…