What's New

(05-06-2025)

Paper published in Journal of ACS Sustainable Chemistry & Engineering:

Decarbonization Strategies in Naphtha Cracking: Insights from the Case Study of South Korea

(https://doi.org/10.1021/acssuschemeng.4c09854)

(21-05-2025)

Paper published in Journal of Energy Storage:

Energy management considering underground hydrogen storage

(https://doi.org/10.1016/j.est.2025.116946)

(02-04-2025)

Paper published in International Journal of Hydrogen Energy :

Optimizing solar-electrolysis for green hydrogen production: A novel spatiotemporal attention framework (STAF) for solar-electrolysis prediction and economic viability analysis

(https://doi.org/10.1016/j.ijhydene.2025.03.385)

(01-04-2025)

Paper published in Journal of Journal of Cleaner Production:

Circular economy of expanded polystyrene waste: Techno-economic and life cycle assessments of chemical recycling processes

(https://doi.org/10.1016/j.jclepro.2025.145416)

(28-03-2025)

Paper published in Journal of Journal of Chemical Information and Modeling:

Prediction of Chromatographic Retention Time of a Small Molecule from SMILES Representation Using a Hybrid Transformer-LSTM Model

(https://doi.org/10.1021/acs.jcim.5c00167)

(01-03-2025)

Paper published in Journal of Applied Energy:

A sequential decision-making framework for integrating renewable energy communities and refueling stations in hydrogen production

(https://doi.org/10.1016/j.apenergy.2025.125547)

(22-02-2025)

Paper published in Journal of Engineering Applications of Artificial Intelligence:

Meta-machine learning framework for robust short-term solar power prediction across different climatic zones

(https://doi.org/10.1016/j.engappai.2025.110295)

(10-02-2025)

Paper published in Journal of Energy Storage:

A novel feature adaptive meta-model for efficient remaining useful life prediction of lithium-ion batteries

(https://doi.org/10.1016/j.est.2025.115715) 

(14-11-2024)

Paper published in Journal of Sustainable Energy Technologies and Assessments :

Day-ahead energy management in green microgrids: Impact of long-term scheduling of hydrogen storage systems

(https://doi.org/10.1016/j.est.2024.112723)

(01-09-2024)

Paper published in Journal of Energy Storage:

Congestion management in rooftop photovoltaic-based multi-microgrids via an energy storage charging market

(https://doi.org/10.1016/j.est.2024.112723)

(12-08-2024)

Paper published in IEEE Transactions on Intelligent Transportation Systems:

Preventive Energy Management Strategy Before Extreme Weather Events by Modeling EVs’ Opt-In Preferences

(https://doi.org/10.1109/TITS.2024.3435049)

(17-05-2024)

Paper published in Renewable and Sustainable Energy Reviews:

Multi-period hydrogen supply chain planning for advancing hydrogen transition roadmaps

(https://doi.org/10.1016/j.rser.2024.114536)

(15-05-2024)

Paper published in International Journal of Hydrogen Energy:

Post COVID-19 and Korea hydrogen economy roadmap 2040: Challenges and the way forward

(https://doi.org/10.1016/j.ijhydene.2024.05.147)

(06-03-2024)

Paper published in Analytical and Bioanalytical Chemistry:

Cross‑column density functional theory–based quantitative structure‑retention relationship model development powered by machine learning

(https://doi.org/10.1007/s00216-024-05243-7) 

(15-09-2023)

Paper published in Energy Conversion and Management:

Efficient integration of alkaline water electrolyzer – A model predictive control approach for a sustainable low-carbon district heating system

(https://doi.org/10.1016/j.enconman.2023.117404) 

(15-09-2023)

Paper published in Optimal integration of a low-carbon energy system - A circular hydrogen economy perspective
(https://doi.org/10.1016/j.enconman.2023.117354)

(18-07-2023)

A patent granted by USPTO:
METHOD FOR SCREENING OF TARGET-BASED DRUGS THROUGH NUMERICAL INVERSION OF QUANTITATIVE STRUCTURE-(DRUG)PERFORMANCE RELATIONSHIPS AND MOLECULAR DYNAMICS SIMULATION

(07-2023)

Paper published in Journal of Energy Storage:
Risk-constrained energy management of an isolated multi-energy microgrid enhanced with hydrogen storage

(https://doi.org/10.1016/j.est.2023.107103) 

(26-06-2023)

Paper published in Sustainable Energy & Fuels:

Sustainability assessment of biojet fuel produced from pyrolysis oil of woody biomass

(https://doi.org/10.1039/D3SE00468F) 

(08-06-2023)

Paper published in Sustainability:
Impacts of Green Energy Expansion and Gas Import Reduction on South Korea’s Economic Growth: A System Dynamics Approach

(https://doi.org/10.3390/su15129281)

(16-05-2023)

A patent granted by USPTO:

Method of predicting chromatographic elution order of compounds

(https://patents.google.com/patent/US11651213B2/en) 

(15-05-2023)

Paper published in Energy:

P-robust energy management of a multi-energy microgrid enabled with energy conversions under various uncertainties

( https://doi.org/10.1016/j.energy.2023.127084 )

(13-02-2023)

Paper published in Journal of Cleaner Production :

Green hydrogen and sustainable development – A social LCA perspective highlighting social hotspots and geopolitical implications of the future hydrogen economy

(https://doi.org/10.1016/j.jclepro.2023.136438)  

(26-08-2022)

Paper published in Journal of Power Sources :

A stochastic agent-based cooperative scheduling model of a multi-vector microgrid including electricity, hydrogen, and gas sectors.

(https://doi.org/10.1016/j.jpowsour.2022.231989)  

(28-07-2022)

Paper published in Energy and Environmental  Science :

Mining bitcoins with carbon capture and renewable energy for carbon neutrality across states in the USA

(doi.org/10.1039/D1EE03804D)  

(15-06-2022)

Paper published in Journal of Cleaner Production :

Can Texas mitigate wind and solar curtailments by leveraging bitcoin mining?

(doi.org/10.1016/j.jclepro.2022.132700)  

(31-05-2022)

Paper published in Journal of Power Sources :

Leveraging renewable oversupply using a chance-constrained optimization approach for a sustainable datacenter and hydrogen refueling station: Case study of California

(doi.org/10.1016/j.jpowsour.2022.231558)  

(08-04-2022)

Paper published in Journal of Power Sources :

Energy management of hydrogen refueling stations in a distribution system: A bilevel chance constrained approach.

(https://doi.org/10.1016/j.jpowsour.2022.231400) 

(29-12-2021)

Paper published in Renewable and Sustainable Energy Reviews :

Seaweeds as a sustainable source of bioenergy: Techno-economic and life cycle analyses of its biochemical conversion pathways.

(https://doi.org/10.1016/j.rser.2021.112011 )

(03-12-2021)

Paper published in ACS Sustainable Chemistry and Engineering :

Life Cycle Assessment of Inland Green Hydrogen Supply Chain Networks with Current Challenges and Future Prospects.

(https://doi.org/10.1021/acssuschemeng.1c06769)

(12-11-2021)

Paper published in Green Chemistry :

Comparative sustainability assessment of a hydrogen supply network for hydrogen refueling stations in Korea- A techno-economic and life cycle assessment perspective.

(https://doi.org/10.1039/D1GC03006J )

(28-10-2021)

Paper published in ACS Sustainable Chemistry and Engineering :

Optimal Design of the Biofuel Supply Chain Utilizing Multiple Feedstocks: A Korean Case Study

(https://doi.org/10.1021/acssuschemeng.1c03945)

(27-10-2021)

Paper published in Energy Conversion and Management :

Artificial Intelligence-based prediction and analysis of the oversupply of wind and solar energy in power systems

(https://doi.org/10.1016/j.enconman.2021.114892)

(01-06-2021)

New Projects awarded!

Development of real-time multi-period hydrogen supply chain design platform of Korea based on sustainable AI

Basic Research Laboratory, National Research Foundation of Korea, 2021 ~ 2024

(23-04-2021)

Paper published in Energy & Environmental Science :

Sustainable bio-succinic acid production: superstructure optimization, techno-economic, and lifecycle assessment

(https://pubs.rsc.org/en/content/articlehtml/2021/ee/d0ee03545a)

(02-03-2021)

New Projects awarded!

Technical advisory on AI/ML applications (LGChem, 2021)

Techno-economic and life cycle assessments of chemical recycling of waste styrofoam (KRICT, 2021)

(04-01-2021)

Happy to Announce that Dr. Rofice Dickson, a recent graduate of ISL, has joined the Department of Chemistry & Chemical Engineering at  Lahore University of Management Sciences (LUMS) (Lahore, Pakistan) as an Assistant Professor.

Congratulation, Dr. Dickson! 

(2020-1-17) 

PDF positions available at Intelligent Systems Laboratory, Pukyong National University , Korea

We will have one or more positions open for postdoctoral fellows at the Intelligent Systems Laboratory (ISL, https://sites.google.com/site/isystemslab), Department of Chemical Engineering, Pukyong National University (www.pknu.ac.kr) available from March 1st, 2020. The students will be involved in one of my projects regarding the following topics:

①   Control and operation of renewable power systems (e.g., wind and/or solar power)

②   Optimization of green hydrogen production and supply chain management

Successful candidates for the positions will have a strong background in machine learning or mathematical programming. In addition, familiarity with one or more following programs would be an advantage: MATLAB, Python, Tensorflow, GAMS. They also will be fluent in English, have good writing and communication skills, and have reasonable laboratory experience. A postdoctoral fellow will receive a salary commensurate with experience. A Qualified candidate with PhD degree can start working at ISL as a researcher before March 1st, 2020. Interested applicants should submit a detailed CV, a brief statement of research interests and experience, relevant publications, and letters of recommendation. For any inquiry, feel free to contact me (jayliu@pknu.ac.kr).

Thank you,

J. Jay Liu, Ph.D

Professor, Department of Chemical Engineering 

Director, Institute of Cleaner Production Technology

Pukyong National University, Korea

(2019-10-31) 

At the special session of the KIChE (Korean Institute of Chemical Engineers) Fall Meeting organized by Process Systems Engineering Division of the KIChE on October 24, our PI Prof. Liu presented his talk titled "Pifalls frequently encoutered in analyzing Big Data in the Chemical Industry (a.k.a. importance of PSE education in digital transformation in the chemical industry)," summarizing his 15+ years of experience as a professional data analyst/researcher/educator. He classified pitfalls into four different categories: (1) Poor reliability of measurements, (2) Poor understanding of key (PSE) subjects, (3) Poor data contents/information, and (4) Poor process/problem understanding. 

(2019-09-02) 

One New PhD Student: Malik Sajawal Akhtar has recently joined our lab. Welcome !

(2019-08-13) 

Paper published in Applied Energy:

Comprehensive Feasibility Assessment of a Poly-Generation Process Integrating Fast Pyrolysis of S. japonica and the Rankine Cycle.

( https://authors.elsevier.com/a/1ZYYG15eiewA-t )

(2019-07-13) 

Paper published in International Journal of Molecular Sciences (IJMS) :

Quantitative Structure–Retention Relationships with Non-Linear Programming for Prediction of Chromatographic Elution Order. 

(https://www.mdpi.com/1422-0067/20/14/3443/pdf )

(2019-06-20) 

New Project awarded!

 Dynamic and scale-up design of Alkaline water electrolysis stack for load variation (2019-2022, National Research Foundation, Korea)

Paper published in Chemical Reviews :

P. Žuvela, M. Skoczylas, J. J. Liu, T. Bączek, R. Kaliszan, M. W. Wong, B. Buszewski, Column Characterization and Selection Systems in Reversed-Phase High-Performance Liquid Chromatography. Chemical Reviews, 2019, in press.

(2019-01-04)

Paper published in Energy :

R. Dickson, J. H. Ryu, J. J. Liu, Optimal plant design for integrated biorefinery producing bioethanol and protein from Saccharina japonica: A superstructure-based approach. Energy, 164, 2018, pp. 1257-1270.

(2018-09-26)

Paper published in Journal of Enzyme Inhibition and Medicinal Chemistry :

Žuvela, P.; Liu, J. J.; Yi, M.; Pomastowski, P.; Sagandykova, G.; Belka, M.; David, J.; Bączek, T.; Szafrański, K.; Žolnovska, B.; Sławiński, J.; Supuran, C. T.; Buszewski, B., ''Target-based drug discovery through inversion of quantitative structure-drug-property relationships and molecular simulation: CA IX-sulphonamide complexes'', Journal of Enzyme Inhibition and Medicinal Chemistry, 33, 2018, pp. 1430-1443.

(2018-09-17)

Graduate Positions available at Intelligent Systems Laboratory, Pukyong National University, Korea. 

• One New PhD Student: Mohammad Amin Zarei has recently joined our lab. Welcome ! 

          (2018-02-26)

• Our MSc Student Ivannie Valentina Effendi graduated on 23rd February 2018. 

        (2018-02-23)

• Paper published in Applied Energy :

B. Brigljević, P. Žuvela, J. J. Liu, H. C. Woo, J. C. Choi, "Development of an automated method for modelling of bio-crudes originating from biofuel production processes", Applied Energy, 215, 2018, pp. 670–678.

(2018-02-20)

• Our PhD student Boris Brigljevic and MSc student Ivannie Valentina Effendi have given talks at the AIChE Conference 2017 in Minnesota, USA.

                (2017-10-27)

• Our MSc Student Haider Niaz received the best poster award at the KICHE Conference 2017 in Daejeon, Korea. Congratulations !

                (2017-10-27)

• Our principal investigator Prof. Liu was awarded the Bumseok Paper Award at the Fall Conference of the Korean Institute of Chemical Engineers in Daejeon on October 26, 2017. The Bumseok Paper Award is presented to a member under the age of 45 as of the end of the previous year when he or she published an outstanding paper in the journals published by the Korean Institute of Chemical Engineers. Professor Liu has been awarded this award for his academic excellence in the paper published in the Korean Journal of Chemical Engineering in 2016. Congratulations !

                (2017-10-26)

• Our MSc Student Ivannie Valentina Effendi received the best oral presentation award at the CleanTech Conference 2017. Congratulations !

                (2017-09-24)

• One New Master Student: Alham Alipuly has recently joined our lab. Welcome ! 

                (2017-09-01)

• Paper published in Biotechnology Progress :

N. Trunfio, H. Lee, J. Starkey, C. Agarabi, J. Liu, S. Yoon, "Characterization of mammalian cell culture raw materials by combining spectroscopy and chemometrics", Biotechnology Progress, 33, 2017, pp. 1127-1138.

                (2017-08-25)

• Our PhD student Boris Brigljevic received awards from conferences (2017 KIChE Spring Meeting & 2017 KSCT Spring Meeting) for his work. Congratulations!

                (2017-05-01)

• Two new students, one MS and one PhD: Haider Niaz and Rofice Dickson have joined ISL from March 2017. Welcome !

                (2017-02-27)

• ISL's second PhD, Petar Žuvela has been promoted at the PKNU graduation ceremony. Photo Gallery has been updated.

                (2017-02-24)

• Prof. Liu, principal investigator and leader of ISL had a short research visit to Nicolaus Copernicus University and Medical University of Gdańsk in Poland and presented two lectures. Photo Gallery has been updated.

(2017-01-24)

• Paper published in Energy Conversion and Management :

P. Fasahati, C. M. Saffron, H. C. Woo, J. J. Liu, "Potential of brown algae for sustainable electricity production through anaerobic digestion", Energy Conversion and Management, 135, pp. 297-307, 2017.

(2017-01-03)

• Our graduate student Petar Žuvela has defended two rounds of his thesis defense and obtained the title of Doctor of Philosophy. It was attended by an external reviewer from Medical University of Gdańsk, in Poland, Prof. Tomasz Bączek. Congratulations !

• • The Photo Gallery has been updated.

(2016-12-12)

• Paper published in Korean Journal of Chemical Engineering :

A. Permatasari, P. Fasahati, J. H. Ryu, J. J. Liu, "Design and Analysis of a Diesel Processing Unit for a Molten Carbonate Fuel Cell for Auxiliary Power Unit Applications", Korean Journal of Chemical Engineering, 33, pp. 3381-3387, 2016.

(2016-12-08)

• Our PhD student Boris Brigljevic has presented two works at the American Institute of Chemical Engineers (AIChE) annual meeting in San Francisco, USA:

• (i) Characterization of Macroalgal Pyrolysis Products for Process Simulation

• (ii) Design and Simulation of Industrial Biofuel Production via Pyrolysis of Brown Macroalgae

• Poster and photo galleries have been updated.

(2016-11-28)

• Two or more PhD student positions available in Intelligent Systems Laboratory, at Pukyong National University in Busan, South Korea starting from 03/2017. The topics are: 

• (i) Sustainable system design & analysis (e.g., renewable energy production)

• (ii) In-silico design and characterization of molecules

• Deadline for applications is December 9th 2016. More information via e-mail, and in the enclosed PDF file at the bottom of the webpage.

(2016-11-09)

• Gallery updated with photos from the Korean Institute of Chemical Engineers (KICHE) fall (2016) conference. ISL principal investigator and his students have presented talks.

(2016-10-31)

• Paper published in RSC Advances :

P. Žuvela,  J. J. Liu, "On feature selection for supervised learning problems involving high-dimensional analytical information", RSC Advances, 6, pp. 82801-82809, 2016.

(2016-08-26)

• Paper published in Energy Conversion and Management :

C. O. Okoli, T. A. Adams II, B. Brigljevic, J. J. Liu, "Design and economic analysis of a macroalgae-to-butanol process via a thermochemical route", Energy Conversion and Management, 123, pp. 410-422, 2016.

(2016-07-07)

• Paper published in Journal of the American Chemical Society :

P. Pomastowski, M. Sprynskyy, P. Žuvela, K. Rafińska, M. Milanowski, J. J. Liu, M. Yi, B. Buszewski, "Silver-lactoferrin nanocomplexes as a potent antimicrobial agent", Journal of the American Chemical Society, 138(25), pp. 7899-7909, 2016.

(2016-06-06)

• Invited paper published in Journal of Pharmaceutical and Biomedical Analysis as a part of a special issue honouring the 70th birthday of Prof. Dr. Roman Kaliszan  : 

P. Žuvela, K. Macur, J. J. Liu, T. Bączek, "Exploiting non-linear relationships between retention time and molecular structure of peptides originating from proteomes and comparing three multivariate approaches", Journal of Pharmaceutical and Biomedical Analysis, 127, pp. 94-100, 2016.

P. Žuvela, J. J. Liu, H. Phan, M. Yi, P. Kawczak, M. Belka, J. Sławiński, T. Bączek, "Prediction and design of novel antitumor pharmaceuticals using chemometrics and computational chemistry", keynote lecture.

P. Pomastowski, P. Žuvela, M. Sprynskyy, K. Rafińska, J. J. Liu, M. Yi, B. Buszewski, "Study of metal-protein nanocomplexes", oral presentation.

(2016-06-13)

• Updated the Poster Gallery with two posters from conferences in 2016.

                (2016-04-19)

• New MSc student: Ivannie Valentina Effendi has joined ISL from March 2016. Welcome !

                (2016-03-02)

• Our lab member Agnesia Permatasari has graduated and obtained a degree Master of Engineering. Congratulations !

(2016-03-01)

• Paper published in Fuel Processing Technology  : 

P. Fasahati, J. J. Liu, "Application of MixAlco® processes for mixed alcohol production from brown algae: Economic, energy, and carbon footprint assessments", Fuel Processing Technology, 144, pp. 262-273, 2016.

(2016-01-18)

• Paper published in Energy  : 

P. Fasahati, J. J. Liu, "Economic, energy, and environmental impacts of alcohol dehydration technology on biofuel production from brown algae", Energy, 93, pp. 2321–2336, 2015.

(2015-11-22)

• Our latest paper "Assessment of column selection systems using Partial Least Squares" has been featured at the portal :

Chemometrics. A starting point...

(2015-10-31)

• Paper published in Journal of Chromatography A  : 

P. Žuvela, J. J. Liu, A. Plenis, T. Bączek, "Assessment of column selection systems using Partial Least Squares", Journal of Chromatography A, 1420, pp. 74-82, 2015.

(2015-10-23)

• Paper published in Analytical Chemistry  : 

P. Žuvela, J. J. Liu, K. Macur, T. Bączek, "Molecular descriptor subset selection in theoretical peptide quantitative structure retention relationships model development using nature-inspired optimization algorithms", Analytical Chemistry, 87, pp. 9876-9883, 2015.

(2015-09-08)

• Ph.D/MS positions available for March 2016. Find the attached below for more detail.

            (2015-06-29)

• Our lab member Peyman Fasahati has successfully defended his thesis and graduated as Doctor of Philosophy. Congratulations !

                (2015-05-25)

• Paper published in Chemical Engineering Research and Design  :

P. Fasahati, J. J. Liu, "Impact of volatile fatty acid recovery on economics of ethanol production from brown algae via mixed alcohol synthesis", Chemical Engineering Research and Design, 98, pp. 107-122, 2015. 

(2015-04-21)

• New PhD student: Boris Brigljevic has joined ISL from March 2015. Welcome !

                (2015-03-25)

• Paper published in Applied Energy  : 

P. Fasahati, H. Woo, J. J. Liu, "Industrial-scale bioethanol production from brown algae: Effects of pretreatment processes on plant economics", Applied Energy, 139, pp.175-187, 2015.

(2014-12-05)

(15-09-2023)