
Dr. Ivan Tolj is an Associate Professor at the Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture (FESB), University of Split, Croatia. He obtained his Ph.D. degree in energy engineering from the University of Split in 2012. Prior to his current position, he served as a postdoctoral research fellow at the University of the Western Cape in South Africa and held academic positions as a research assistant and lecturer at the University of Split. His research interests include fuel cell technologies, hydrogen production, storage and compression, and energy systems integration. He is actively involved in international research projects, including the EU Horizon 2020 HYDRIDE4MOBILITY project, where he serves as a team leader. Dr. Tolj has published numerous papers in peer-reviewed international journals in the field of hydrogen energy and related disciplines. His work has received close to 2,000 citations, with an h-index of 22. He serves as an Assistant Subject Editor for the International Journal of Hydrogen Energy (Elsevier) and has also contributed as a Guest Editor for several international journals, including Journal of Energy Storage, Journal of Alloys and Compounds, and Energies.

Dr. Kawata is an assoc. Prof. at Faculty of Economics, Kindai University in Higashi Osaka, Japan. He earned his Ph.D. degree at Kyoto University in 2004. Before joining a faculty member at Kindai University. he was a lecturer and an assistant Prof. at other Japanese universities. His research interests include environmental economics, resource economics, and wildlife management. He has published more than 50 papers in peer-reviewed international academic journals such as Ecological Research (Wiley), Ecological Economics (Elsevier), The B.E. Journal of Economic Analysis & Policy (De Gruyter), Urban Forestry & Urban Greening (Elsevier), Appetite (Elsevier), and Journal of Material Cycles and Waste Management (Springer), and more than 80 other publications.
Speech title "Urban Village Improvement by Creating Streetscapes through Murals: Analysis on the Factors Behind Post-COVID-19 Status Differences"
Abstract— Urban villages (kampung kota) throughout Indonesia are often considered slums due to their poor living conditions. In 2015, the Indonesian government launched the KOTAKU program, which stands for "slum-free towns" in Indonesian, to develop kampung kota into tourism villages (also called thematic villages). Following the COVID-19 closures, some tourism villages, like other tourist destinations, have recovered, while others have seen almost no visitors. This study aimed to develop hypotheses regarding the factors underlying these differences, based on field surveys conducted in Semarang and Balikpapan in 2024 and 2025. Examples of KOTAKU program-related developments that have attracted visitors from both within and outside Indonesia include Rainbow Villages (Kampung Pelangi Semarang, Kampung Warna-Warni Jodipan) and Batik Village (Kampung Batik Semarang). The analysis was conducted using "Low-High population density" and "Ordinary-Out of ordinary" as two axes, including other kampung kota. Based on the results, hypotheses were developed: The main reason for some tourist villages' stagnation in the post-COVID-19 era was that their only attraction was their streetscape, with a lack of other tourism resources; The differences in the level of resident participation were the main reason for the differences in sanitation conditions in the post-COVID-19 era.

Dr. Meiyin Zhu is an Associate Professor at Hangzhou International Innovation Institute, Beihang University. His research focuses on aviation emissions and their climate impacts, particularly full-flight-phase pollutant quantification. He received his B.S. from Southwest University of Science and Technology (2014) and Ph.D. from Beihang University (2021), followed by postdoctoral research at Beihang (2021–2023). He has led projects including an NSFC Youth Project, a Beijing Natural Science Foundation project Project, an Aviation Science Fund Project, and a Zhejiang Natural Science Foundation project. He has published over 60 peer-reviewed papers in journals such as Aerospace Science and Technology, and Chinese Journal of Aeronautics. He authored one textbook and one English monograph, holds 18 invention patents, and has received multiple first-prize awards from the Ministry of Education and several Chinese societies.

Dr. Sweety Verma is a researcher in chemical sciences with expertise in thermodynamic
modeling, solution chemistry, and emerging applications of artificial intelligence in chemical
systems. She completed her undergraduate studies at the University of Delhi in 2014, followed
by a Master’s degree from Deenbandhu Chhotu Ram University of Science and Technology
(DCRUST), India. She earned her Ph.D. in 2020 from the same institution, where her research
focused on the Modeling of Thermodynamic Properties of Oxygenated Fuel Additives in
hydrocarbon systems”.
Dr. Verma began her academic career as a Visiting Professor at DCRUST, where she taught
undergraduate and postgraduate students. In 2021, she moved to South Korea as a Postdoctoral
Researcher at Inje University, marking the beginning of her international research career,
supported by the prestigious Korea Scholarship.
She continued her postdoctoral research in 2022 at Inha University on a KITECH-funded project,
followed by her role in 2023 as a Research Associate in the Low Carbon Energy R&D Group at
Korea Institute of Industrial Technology (KITECH). Building on this progression, she has been
serving as a Research Associate at the Chemical Process Solution Research Center, Korea
Research Institute of Chemical Technology (KRICT), since 2024, where she contributes to
research on sustainable and low-carbon chemical technologies.
Earlier in her career, she qualified the CSIR-UGC NET and received the CSIR Foreign Travel
Grant in 2018. An accomplished author, she has published 57 research papers in leading
SCI/SCIE and SCOPUS-indexed journals. She has presented her work at 19+ national and
international conferences, delivering multiple invited talks, and serves as a reviewer for leading
journals from Elsevier, ACS, and Springer.
Committed to mentorship and collaboration, Dr. Verma has guided Ph.D. and master’s students,
contributed to conference committees, and advanced cross-institutional research. Her work
reflects a dedication to innovation in chemical sciences for a sustainable and carbon-neutral
future.
Speech title "Advances in CO2 Mitigation Technologies: Evolution and Design of Efficient Absorbents for Climate Action"
Abstract— The combustion of fossil fuels, including
natural gas, oil, and coal, leads to the substantial release of
carbon dioxide (CO2) into the
atmosphere, contributing significantly to anthropogenic greenhouse
gas accumulation and global warming. Since the implementation of the
Kyoto Protocol, CO2 capture
technologies have attracted increasing global research interest.
According to the Netherlands Environmental Assessment Agency report
“Trends in Global CO2 Emissions
2016,” the largest contributors to global CO2
emissions include China (30%), the United States (14%), the European
Union (EU-28) (10%), India (7%), the Russian Federation (5%), and
Japan (3.5%), collectively accounting for approximately 69% of total
emissions. While emissions in several developed regions have shown
modest
declines, developing countries such as India continue to experience
growth, although their per capita emissions remain comparatively
low. These trends highlight the urgent need for effective CO2
mitigation strategies. CO2
capture involves the separation of carbon dioxide from major point
sources such as power plants, refineries, petrochemical industries,
and other large-scale industrial facilities, enabling its subsequent
utilization or sequestration. Fossil fuel-based power plants alone
contribute nearly one-third of global CO2
emissions, making them a primary target for capture technologies.
Among available methods, chemical absorption using amine-based
solvents remains the most mature and widely implemented approach for
CO2 separation from flue gases.
Alkanolamines, including primary, secondary, and tertiary amines,
are conventionally employed as CO2
absorbents. Among them, N-methyldiethanolamine (MDEA) is extensively
used in industrial applications due to its cost-effectiveness,
favorable kinetics, and suitability for low-pressure and low CO2
concentration conditions. The presence of hydroxyl groups enhances
water solubility and reduces vapor pressure, while amino groups
facilitate CO2 interaction.
However, conventional aqueous amine systems suffer from several
limitations, including high regeneration energy requirements due to
large heats of reaction, limited CO2
loading capacity, and issues such as corrosion and carbamate
formation in primary and secondary amines. To address these
challenges, non-aqueous absorbent systems, including organic
solvents such as methanol and ethanol, have been explored to improve
regeneration efficiency and reduce energy consumption. In this
context, thermophysical properties play a critical role in
understanding intermolecular interactions and optimizing absorbent
performance. Studies have demonstrated that non-aqueous alkanolamine
systems can enhance CO2
absorption rates and overall process efficiency. Accurate evaluation
of key properties—including CO2
solubility, reaction kinetics, density, viscosity, surface tension,
enthalpy, speed of sound, and refractive index—is essential for the
design and optimization of absorption–desorption systems. These
parameters, derived from experimental measurements and predictive
models, are fundamental for developing next-generation absorbents
such as deep eutectic solvents (DES) and ionic liquids, which offer
promising alternatives for sustainable CO2
capture

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