91成人短视频

Dr. John R. Grace, Emeritus Professor, Department of 91成人短视频 and Biological Engineering, University of British Columbia, will be presenting the IACChE's James Y. Oldshue Lecture, November 10, 2015.

This lecture was jointly established, in 2008, in memory of James Y. Oldshue by the 91成人短视频 (AIChE) and the Interamerican Confederation of 91成人短视频 Engineering (CIIQ/IACChE). Jim Oldshue was an important leader and supporter of the CIIQ/IACChE.  He was President of the AIChE in 1979 and President of the CIIQ/IACChE in 1995.  Jim was a recipient of the prestigious V铆ctor M谩rquez award in 1983, which is conferred by the CIIQ/IACChE. Jim was an ambassador of the profession who visited more than 100 countries.  It is envisioned that this lecture provide a global perspective of a specific contingent topic.  The Oldshue Lecture alternates between the AIChE Annual Meetings and the Interamerican Congresses, which take place every two years.

The following is a list of distinguished Jim Oldshue Lecture speakers:

1. Mr. Carlos Cabrera; President & CEO, UOP; AIChE Centennial and XXIII Interamerican Congress of 91成人短视频 Engineering; Philadelphia, PA, USA (2008)
2. Dr. Arthur W. Etchells III, Principal, AWE3 Enterprises; 8th World Congress and XXIV Interamerican Congress of 91成人短视频 Engineering; Montreal, QC, Canada (2009)
3. Dr. Esteban Alberto Brignole; Professor of 91成人短视频 Engineering at Universidad Nacional del Sur, Bah铆a Blanca, Argentina, and Senior Researcher of the Argentina’s National Research Council of Science and Technology (CONICET); 2010 Annual Meeting, 91成人短视频; Salt Lake City, UT, USA (2010)
4. Dr. Eduardo Falabella Sousa-Aguiar; Senior Consultant, Leopoldo Am茅rico Migu锚z de Mello R&D Center, Adjunct Professor at Universidade Federal do Rio de Janeiro, Brazil, Consultant at the International Centre for Science and High Technology; XXVI Interamerican Congress of 91成人短视频 Engineering; Montevideo, Uruguay (2012)
5. Dr. Carlos R. Apestegu铆a, Professor, National University of Litoral (UNL), School of 91成人短视频 Engineering (FIQ). Member of the CONICET's Research Staff, Institute of Research on Catalysis and Petrochemistry (INCAPE), Santa Fe, Argentina.  2013 Annual Meeting, 91成人短视频; San Francisco, CA, USA (2013)
6. Dr. Ignacio Grossmann, Rudolph R. and Florence Dean University Professor, Carnegie Mellon University; XXVII Interamerican Congress of 91成人短视频 Engineering; Cartagena, Colombia (2014)

Program:

Validation of Models and Procedures in 91成人短视频 Engineering

John R. Grace, Department of 91成人短视频 and Biological Engineering, University of British Columbia.

In recent years, the term “validation” has become extremely widespread among researchers working in the worldwide chemical engineering community.   It is applied to a wide range of models and procedures in an effort to convince the reader that the work and the approach adopted are of value, as well as to justify extensive description of the model details and continued effort.  However, the word “validation” should convey the meaning of establishing not just value, but validity, based on objective criteria which include testing over a wide range of variable space over which the model is intended to be applied.  It should require agreement within objective criteria based, among other factors, on experimental errors, where the experimentation has been conducted independently and, wherever possible, based on different techniques and carried out by several independent research groups.  Parameter fitting, where applicable, should not have been based on the data used to test the degree of agreement.  

Widespread misuse has rendered the terms “validation” and “validated” almost meaningless.  At a time when chemical engineers are, more than ever, needed to provide input and perspective on key global issues like climate change, water resources and food resources, it is important that we have objective ways of assessing the validity of models and other tools.  Based on his experience as both a modeler and an experimentalist working in several different areas of chemical engineering, several questions will be considered:  1. When, if ever, is it justified and permissible to say that a model has been validated?  2. Are qualifiers needed when the words validation and validated are used?  3. What terminology should be applied in cases where validation cannot be established?  4. How do we persuade graduate students and their supervisors to exercise more care and rigor in applying these terms?

Upcoming Lectures

1. 2017 Annual Meeting, 91成人短视频; Minneapolis, MN, USA (2017)
2. XXIX Interamerican Congress of 91成人短视频 Engineering and 68^th Canadian Conference of 91成人短视频 Engineering; Toronto, Canada (2018)
3. 2019 Annual Meeting, 91成人短视频; Orlando, FL, USA (2019)
4. 2020 Annual Meeting, 91成人短视频; San Francisco, CA, USA (2020)
5. 11^th World Congress of 91成人短视频 Engineering, XXX Interamerican Congress of 91成人短视频 Engineering, and X Congreso Argentino de Ingener铆a Qu铆mica, Buenso Aires, Argentina, (2021)