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Prof. Gao began his presentation with a brief outline of important role that mechanics plays in the development of structural and functional materials, enlightening the audience on the recent advances in nanostructured materials, biomedical materials, mechanical metamaterials, soft actuators, flexible electronics, tunable mechanochromics, regenerative mechanomedicine and many more.
He further illustrated how fundamental principles of mechanics enable the proactive modulation and programming of properties in both engineering and biological systems. Through case studies, Prof. Gao highlighted the breakthroughs in mechano-energy, mechano-interfaces, and mechano-materials, demonstrating their transformative potential.

Event date: 13/06/2025
Speaker: Prof. GAO Huajian
Hosted by: PolyU Academy for Interdisciplinary Research

Lu began his presentation with a brief outline of the role of functional nanomaterials in addressing global challenges and advancing green hydrogen technologies. He highlighted the critical importance of electrodes, membranes, catalysts and photocatalysts in enhancing the efficiency and scalability of electrolysis and photocatalysis systems, as well as the significance of solid-state storage materials in overcoming challenges related to hydrogen storage and distribution, noting that some low-pressure solutions are already in use.
Still, Prof. Lu emphasised that further technological innovations are needed to reduce costs and enhance performance. He explained that green hydrogen is a valuable energy carrier; it can not only contribute to decarbonisation in the power sector, but also act as zero-emission fuel for sea, land and air freight, which is crucial for the achievement of a net-zero future by 2050. In conclusion, Prof. Lu called on the academic community to accelerate the commercialisation of new materials for the construction of cost-effective hydrogen infrastructure, and urged researchers to bridge the gap between technology R&D and practical applications.

Event date: 20/05/2025
Speaker: Prof. G.Q. Max LU
Hosted by: PolyU Academy for Interdisciplinary Research

Prof. Alvarez discussed the emerging opportunities that nanotechnology offers to revolutionise water treatment systems. He explained how it can improve pollutant-removal efficiency, reduce energy consumption, and enable cost-effective decentralised solutions. Illustrative examples included: Electrosorption using highly conductive and selective electrodes to remove multivalent ions that can cause scaling.
Solar-thermal processes, enabled by nanophotonics, to desalinate with membrane distillation.
Disinfection and advanced oxidation using nanocatalysts.
Electrocatalytic degradation of recalcitrant organic pollutants of emerging concern.
In conclusion, Prof. Alvarez affirmed that nanotechnology holds significant promise for advancing sustainable resources management, enabling safe and low-energy water treatment and reuse. He envisioned that high-performance modular systems that would deliver multifunctional solutions with minimal infrastructure requirements.

Event date: 06/05/2025
Speaker: Prof. Pedro ALVAREZ
Hosted by: PolyU Academy for Interdisciplinary Research

Human brain stores tremendous amount of knowledge about this world, which is the foundation of object recognition, language, thought, and reasoning. What’s the neural codes of semantic knowledge representation? Is the knowledge “roses are red” simply the memory trace of perceiving the color of roses, stored in the brain circuits within color-sensitive neural systems? What about knowledge that is not directly perceived by senses, such as “freedom” or “rationality”? I will present a set of studies from my lab that addresses this issue, including object color (and other visual) knowledge in several populations (congenitally blind humans, color blind humans, and typically developed macaques), and semantic neural representation in individuals with early language experience deprivation. The findings point to the existence of two different types of knowledge coding in different regions of the human brain – one conservative, based on sensory experiences, and one based on language-derived machinery that support fully nonsensory information. The relationship between these two types of knowledge coding will be discussed.

Event date: 09/04/2025
Speaker: Professor Yanchao BI (Peking University)
Hosted by: Faculty of Humanities

In this talk I examine the role of humanities research where nearly every aspect of human experience is turned into data and analysed, in many cases to model, predict and modify behaviour. As a result and through advances in computing technology, artificial intelligence systems have colonised traditional areas of humanities research, including linguistics and language studies. Today, large multimodal models (LMM) can process text, images, videos and sound, potentially leading to the development of algorithmic approaches to modelling society and culture. In this talk, I explore how humanities researchers can leverage the benefits and mitigate the risks of these latest technological developments and prepare scholars for the challenges which lie ahead. I provide some examples from the Digital Media and Society Institute (DMSI) at the University of Liverpool where communication and media researchers are working with data scientists to investigate how multimodal information is re-contextualised across online media platforms. This includes new methods for studying information distortions (e.g. misinformation, disinformation and memes) and public reactions to key events.

Event date: 31/03/2025
Speaker: Professor Kay O’HALLORAN (University of Liverpool)
Hosted by: Faculty of Humanities

People are now regularly interacting with voice assistants (VAs), which are conversational agents that allow users to use spoken language to interface with a machine to complete tasks. The huge adoption and daily use of VAs by millions of people - and its increasing use for financial, healthcare, and educational applications - raises important questions about the linguistic and social factors that affect spoken language interactions with machines.

We are exploring issues of linguistic and social biases that impact speech communication in human-computer interaction - particularly during cross-language transfer, learning, or adaptation of some kind. In this talk, I will present two case studies illustrating some of our most recent work in this area. The first study looks at a case of cross-language ASR transfer. We find systematic linguistic and phonetic disparities in language transfer by machines trained on a source language to speech recognition of a novel target, low-resource language. The second study looks at a case of social bias in word learning by humans using voice-enabled apps. We find the word learning is inhibited when there are mismatching social cues presented by the voice and the linguistic information.

Together, along with highlights from other ongoing work in my lab, the aim of this talk is to underscore that human-computer linguistic communication is a rich testing ground for investigating issues in speech and language variation. Examining linguistic variation during HCI can enrich and elaborate linguistic theory, as well as present opportunities for linguists to provide insights for improving both the function and fairness of these technologies.

Event date: 25/03/2025
Speaker: Professor. Georgia ZELLOU (University of California, Davis)
Hosted by: Faculty of Humanities

In this talk, I will present the results of several studies examining qualitative and quantitative empirical research articles from applied linguistics. The studies use both corpus-based analyses and rhetorical genre analysis to describe similarities and differences across the two paradigms. Each of the studies draws on a corpus of published studies from journals that regularly publish both quantitative and qualitative articles on the topic of language learning and teaching.

I first describe the compilation of the corpus, which currently includes 863 studies from 2013 to 2023, and explain some of the challenges involved in using copyrighted materials in a time of calls for open science. Next, I explain the rationale for comparing qualitative and quantitative research in a subfield of applied linguistics. Specifically, I talk about the challenges of a field in which there appears to be a widening divide in the nature of research in the two paradigms along with unsubstantiated claims in research manuals characterizing the two paradigms.

The bulk of the talk will focus on my and my collaborators’ research agenda using our created corpus. Two of the studies focus on the role of theory in the empirical studies. The first study used a corpus-based analysis of the frequency and collocations of the lemma theor- while the second used rhetorical move analysis to show how theory was used in structuring literature reviews. Both studies revealed differences in the role of theory in the two paradigms that show how language choice and rhetorical moves reflect their epistemologies. The third study focused on citation use and revealed some differences, but more similarities. Finally, we have two studies in progress examining article structure and lexical bundles. Taken together, both studies show that quantitative research is more structured and predictable. I end by suggesting possible extensions of our research using qualitative methods.

The final part of this talk will explain the relevance of this research to both teaching academic writing and to the field of applied linguistics. With regard to teaching writing, I will give specific examples of how the various analyses used in the five studies can be transferred to heterogeneous writing classes to help students explore conventions in their own fields. Second, I explain how the studies suggest a widening gap between the two paradigms and how this gap presents problems for graduate programs, journals, and professional organizations, all of which, I argue, need to be more sensitive to acknowledging research in both paradigms.

Event date: 12/03/2025
Speaker: Professor Charlene POLIO (Michigan State University)
Hosted by: Faculty of Humanities

The rapid development of artificial intelligence and large language models have led to the language industry and translation and interpreting education programs re-imagining how to engage with these technologies. While some language industry stakeholders seek to leverage these tools to support the provision of language services and language access, others have sought to resist this technological incursion on ethical and professional grounds. The impact of these tools is undoubtedly far reaching, to the point that trainers and educators must now respond to these developments. This talk reviews some of the ways in which artificial intelligence, large language models, and translation and interpreting technologies can be leveraged in educational and training programs while offering possible means to resist uncritical adoption of these tools. The talk provides suggestions on how university programs can prepare future graduates to interface with these technologies and drive ethical and responsible technology use.

Event date: 13/02/2025
Speaker: Dr. Christopher D. MELLINGER (The University of North Carolina at Charlotte)
Hosted by: Faculty of Humanities

Prof. SO Kwok-fai, Director of GHM Institute of CNS Regeneration at Jinan University, Guangzhou, China, delivered the 37th PAIR Distinguished Lecture titled “Mental Health and Lifestyle Intervention” on 17 April 2025 on the PolyU campus. The lecture attracted about 100 participants to join in person and captivated an online audience of over 13,300 from different countries and regions who watched the live broadcast on multiple social media platforms, including Bilibili, WeChat, Weibo and YouTube.

The lecture commenced with a warm welcome by Prof. ZHANG Weixiong, Associate Director of PAIR, followed by an introduction of the speaker by Prof. WONG Kwok-yin, Vice President (Education). Prof. So kickstarted his presentation by emphasising the importance of disease prevention in safeguarding human health. He highlighted that rapid economic development, an increasingly fast-paced lifestyle, heightened social competition and other factors have contributed to a rise in mental health challenges, chronic conditions, sub-health syndromes and aging-related diseases.

Prof. So elaborated on several neuropathological mechanisms, such as monoamine neurotransmitters, neural circuits, and neuroglial cells. In addition to these central factors, he also discussed how circulating hormones, including glucocorticoids, profoundly influence mental functions, suggesting the interplay between peripheral tissues and central nervous system nuclei.

Additionally, he highlighted the antidepressant effects of light therapy, underscoring the role of the nucleus reuniens in mediating the spatial memory-enhancing outcomes of such treatment. Furthermore, Prof. So presented evidence that taking glucagon-like peptides can alleviate symptoms of depression and reduce the side effects of traditional treatments on the body.

Last but not least, Prof. So underscored the need for healthcare focus to shift from curative to preventive medicine, advocating lifestyle strategies such as regular exercise, light therapy and using supplements derived from goji glycopeptide as effective preventive measures.
The event concluded with a dynamic question-and-answer session moderated by Prof. Sylvia CHEN, Interim Director of Mental Health Research Centre (MHRC) and Associate Dean of Faculty of Health and Social Sciences (FHSS), where attendees engaged in in-depth discussions with Prof. So.

Prof. Jesse ZHU, Senior Advisor to the President, Eastern Institute of Technology, Ningbo, China, delivered the 36th PAIR Distinguished Lecture titled “Research Strategy and Planning: How to Prepare a Research Career?” on 12 March 2025 on the PolyU campus. The lecture attracted over 110 participants to join in person and captivated an online audience of over 13,300 from different countries and regions who watched the live broadcast on multiple social media platforms, including Bilibili, WeChat, Weibo and YouTube.

Prof. Zhu kickstarted his presentation by sharing his personal anecdotes from his journey through academia and industry, emphasising that innovation, curiosity and a commitment to societal impact have guided his research trajectory. He stressed the importance of identifying meaningful research themes to ensure both academic rigor and real-world relevance, noting, “True scientific breakthroughs emerge when we chase fundamental truths, not just external accolades.”

Prof. Zhu illustrated these principles with examples from his cross-disciplinary work, including (i) healthcare innovation, the development of a rotating fluidiser which is a device that enable uniform particle suspension to optimise drug delivery systems; (ii) sustainable manufacturing, the application of nanoparticles in paint production to enhance flow efficiency and reduce environmental waste; and (iii) urban sustainability, pioneering compact wastewater treatment technologies for space-constrained urban environments.

In conclusion, Prof. Zhu underscored the transformative role of research in advancing global well-being, advocating for a balance between theoretical exploration and applied solutions. He urged students to cultivate resilience, collaborate across disciplines, and align their work with societal needs, that is, “persistence and purpose are the bedrock of a fulfilling research career.”

The event concluded with a lively question-and-answer session moderated by Prof. Chen, where attendees explored topics ranging from funding strategies to various considerations in technology development with Prof. Zhu.