Exploring the potential of time-series transformers for process modeling and control in chemical systems: an inevitable paradigm shift?

N Sitapure, JSI Kwon - Chemical Engineering Research and Design, 2023 - Elsevier
The last two years have seen groundbreaking advances in natural language processing
(NLP) with the advent of applications like ChatGPT, Codex, and ChatSonic. This revolution …

Machine learning modeling and predictive control of the batch crystallization process

Y Zheng, X Wang, Z Wu - Industrial & Engineering Chemistry …, 2022 - ACS Publications
This work develops a framework for building machine learning models and machine-
learning-based predictive control schemes for batch crystallization processes. We consider …

Introducing hybrid modeling with time-series-transformers: A comparative study of series and parallel approach in batch crystallization

N Sitapure, J Sang-Il Kwon - Industrial & Engineering Chemistry …, 2023 - ACS Publications
Given the hesitance surrounding the direct implementation of black-box tools due to safety
and operational concerns, fully data-driven deep-neural-network (DNN)-based digital twins …

[HTML][HTML] Physics-informed machine learning for MPC: Application to a batch crystallization process

G Wu, WTG Yion, KLNQ Dang, Z Wu - Chemical Engineering Research …, 2023 - Elsevier
This work presents a framework for developing physics-informed recurrent neural network
(PIRNN) models and PIRNN-based predictive control schemes for batch crystallization …

Protein crystal based materials for nanoscale applications in medicine and biotechnology

LF Hartje, CD Snow - Wiley Interdisciplinary Reviews …, 2019 - Wiley Online Library
The porosity, order, biocompatibility, and chirality of protein crystals has motivated interest
from diverse research domains including materials science, biotechnology, and medicine …

Neural network-based model predictive control for thin-film chemical deposition of quantum dots using data from a multiscale simulation

N Sitapure, JSI Kwon - Chemical Engineering Research and Design, 2022 - Elsevier
Recently, thin-film deposition of quantum dot (QDs) to manufacture solar cells and displays
have received significant attention due to the lucrative optoelectronic properties of these …

Measurement, modelling, and closed-loop control of crystal shape distribution: Literature review and future perspectives

CY Ma, JJ Liu, XZ Wang - Particuology, 2016 - Elsevier
Crystal morphology is known to be of great importance to the end-use properties of crystal
products, and to affect down-stream processing such as filtration and drying. However, it has …

Nonlinear model predictive control of a multiscale thin film deposition process using artificial neural networks

G Kimaev, LA Ricardez-Sandoval - Chemical Engineering Science, 2019 - Elsevier
The purpose of this study was to employ Artificial Neural Networks (ANNs) to develop data-
driven models that would enable the shrinking horizon nonlinear model predictive control of …

Robust machine learning modeling for predictive control using Lipschitz-constrained neural networks

WGY Tan, Z Wu - Computers & Chemical Engineering, 2024 - Elsevier
Neural networks (NNs) have emerged as a state-of-the-art method for modeling nonlinear
systems in model predictive control (MPC). However, the robustness of NNs, in terms of …

Stochastic optimal control of mesostructure of supramolecular assemblies using dissipative particle dynamics and dynamic programming with experimental validation

S Pahari, YT Lin, S Liu, CH Lee, M Akbulut… - Chemical Engineering …, 2023 - Elsevier
The self-assembly process, where molecules form complex structures through interaction
forces, has broad applications in various fields. However, controlling the dynamics of self …