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The lecture commenced with a warm welcome and introduction of the speaker by Prof. CHEN Qingyan, Director of PAIR. Prof. McCulloch kickstarted his presentation by giving a brief overview of the current molecular designs of organic semiconductor polymers for charge transport. He explained how they enable organic thin film transistors to achieve high charge carrier mobility and their applications in flexible screens and other electronic devices. He then elaborated on the molecular characteristics of the indacenodithiophene-co-benzothiadiazole copolymer, a semiconductor polymer that exhibits high carrier mobility and is commonly used in organic transistors.
Prof. McCulloch also emphasised the importance of “conformational coplanarity” and “side chain assisted self-assembly”. These features help enhance one-dimensional transport along the “conjugated polymer backbone” and form sterically free “crossing points”, allowing charges to hop between chains. He further highlighted that current research has shown that the molecular conformation and film microstructure are influenced by the design and processing conditions of organic semiconductor polymers, and these significant findings can help achieve optimal charge transport properties.
Following the presentation was a question-and-answer session moderated by Prof. YAN Feng, Associate Director of the Research Institute for Intelligent Wearable Systems (RI-IWEAR) and Chair Professor of Organic Electronics in the Department of Applied Physics. The audience engaged in a productive discussion with Prof. McCulloch.
Event date: 14/01/2025
Speaker: Prof. Iain McCULLOCH (Princeton University)
Hosted by: PolyU Academy for Interdisciplinary Research
- Subjects:
- Chemistry
- Keywords:
- Organic semiconductors Polymers Charge transfer
- Resource Type:
- Video
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Video
This presentation examines the urgent need to decolonize English Medium Instruction (EMI) in higher education by challenging the dominance of native English norms, addressing linguistic imperialism, and critically assessing the pervasive influence of imported Western curricula. Often, these resources reinforce colonial power dynamics by prioritizing Western perspectives and marginalizing local knowledge systems. Through Global Englishes frameworks, I will explore strategies for inclusive EMI practices that integrate diverse linguistic and cultural perspectives. Such strategies aim to foster curricula that respect local identities and empower students and educators in non-Anglophone contexts. Drawing on data from the Southeast Asian context, I will explore ways to foster an equitable, decolonized approach to internationalization in higher education that aligns with broader goals of internationalisation and linguistic justice.
Event date: 29/11/2024
Speaker: Dr. Nicola GALLOWAY (University of Glasgow)
Hosted by: Faculty of Humanities
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Video
The lecture commenced with a warm welcome and a brief introduction of the speaker by Prof. CHEN Qingyan, Director of PAIR. Prof. Zheng kickstarted his presentation by outlining the key driving forces of innovation and technologies. He shared that achieving success in the “from zero to one” and the subsequent “from one to N” innovation stages often come with the inevitable “valley of death” period, which spans over a decade. He then elaborated on how he and his team have spent 20 years of relentless effort overcoming the “valleys of death” in studying structural superlubricity, building a model for talent development, and entering into the next “one-to-N” development phase. Prof. Zheng also shared the key turning points in his academic and research journey and outlined how the X-Institute nurtures interdisciplinary research talents.
Event date: 21/11/2024
Speaker: Prof. ZHENG Quanshui (Academician of the Chinese Academy of Sciences, Founding Principal of X-Institute and Professor of Tsinghua Shenzhen International Graduate School, China)
Hosted by: PolyU Academy for Interdisciplinary Research
- Keywords:
- Scientists Technological innovations
- Resource Type:
- Video
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Video
The lecture commenced with a warm welcome and brief speaker introduction by Prof. CHEN Qingyan, Director of PAIR. Prof. Russell kickstarted his presentation by giving a brief overview of the historical development of photonic crystal fibre (PCF), highlighting how advancements in optical fibres, Bragg scattering, photonic bandgaps and drawing towers laid the foundation for PCF breakthroughs. Prof. Russell shared that he proposed in 1991 a glass fibre with a periodic array of microscopic hollow channels running along its length might guide light in novel ways, and many PCFs emerged from drawing towers at universities in subsequent years. Next, he elaborated on the advantages of PCF, explaining how it offers enhanced control over the propagation light, and how this property has enabled valuable applications. He shared his research in light-guiding PCF, hollow core PCF filled with gas, and twisted PCF, reviewing how some of the scientific discoveries made possible by PCF have evolved into real-world applications.
Event date: 05/11/2024
Speaker: Prof. Philip RUSSELL
Hosted by: PolyU Academy for Interdisciplinary Research
- Subjects:
- Physics
- Keywords:
- Fiber optics Optical fibers Optical communications
- Resource Type:
- Video
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Video
The lecture will explore the role of technology in promoting environmental sustainability. It focuses on the development and implementation of innovative technologies that can help address environmental challenges and contribute to a more sustainable future.We are developing green technologies to benefit sustainable environment, which will enable people and the environment to prosper together. The Center for Filtration Research (CFR) at the University of Minnesota, collaborating with 20 leading international filtration manufacturers and end users, was established to develop green technologies to mitigate PM2.5, VOCs, ozone and other environmental pollutants. CFR investigators perform fundamental and applied research on air, gas and liquid filtration. The current research projects include indoor air cleaning and Covid prevention, bioaerosols sensor development and evaluation, nanofiber production and modeling, nanotechnology and instrumentation developments, among others. Large-scale air cleaning towers are established in Xi’an and Yancheng in China, and two additional towers in Delhi, India. They are developed to mitigate PM2.5 pollutants in urban air. The second-generation tower in Yancheng is developed to reduce not only the PM2.5 but also CO2 in the atmosphere. The construction of a set of large-scale air cleaning towers to capture 16 million tons of CO2 annually is proposed. All these research and development activities are helping to improve sustainable environment.
Event date: 13/9/2024
Speaker: Prof. PUI David (University of Minnesota)
Hosted by: PolyU Academy for Interdisciplinary Research
- Subjects:
- Mechanical Engineering
- Keywords:
- Filters filtration Sustainable development Air -- Pollution Separation (Technology) Indoor air pollution Aerosols
- Resource Type:
- Video
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Video
A rapidly expanding research area involves the development of routes to shape programmable three-dimensional (3D) structures with feature sizes in the mesoscopic range (that is, between tens of nanometres and hundreds of micrometres). A goal is to establish methods to control the properties of materials systems and the function of devices, through not only static architectures, but also morphable structures and shape-shifting processes. Soft matter equipped with responsive components can switch between designed shapes, but cannot support the types of dynamic morphing capabilities needed to reproduce continuous shape-shifting processes of interest for many applications. Challenges lie in the establishment of 3D assembly/fabrication techniques compatible with wide classes of materials and 3D geometries, and schemes to program target shapes after fabrication.
In this talk, Prof. HUANG Yonggang will introduce a mechanics-guided assembly approach that exploits controlled buckling for constructing complex 3D micro/nanostructures from patterned two-dimensional (2D) micro/nanoscale precursors that can be easily formed using established semiconductor technologies. This approach applies to a very broad set of materials (e.g., semiconductors, polymers, metals, and ceramics) and even their heterogeneous integration, over a wide range of length scales (e.g., from 100 nm to 10 cm). To allow realisation of 3D mesostructures that are capable of qualitative shape reconfiguration, Prof. HUANG devises a loading-path controlled strategy that relies on elastomer platforms deformed in different time sequences to elastically alter the 3D geometries of supported mesostructures via nonlinear buckling. Prof. HUANG will also introduce a recent work on shape programmable soft surface, constructed from a matrix of filamentary metal traces, driven by programmable, distributed electromagnetic forces that follow from the passage of electrical currents in the presence of a static magnetic field. Under the guidance of a mechanics model-based strategy to solve the inverse problem, the surface can morph into a wide range of 3D target shapes and shape-shifting processes. The compatibility of these approaches with the state-of-the-art fabrication/processing techniques, along with the versatile capabilities, allow transformation of diverse existing 2D microsystems into complex configurations, providing unusual design options in the development of novel functional devices.
Event date: 08/08/2024
Speaker: Prof. HUANG Yonggang (Northwestern University)
Hosted by: PolyU Academy for Interdisciplinary Research
- Keywords:
- Buckling (Mechanics) Materials science Elastomers Microstructure
- Resource Type:
- Video
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Video
The idea of translanguaging has disrupted much of the thinking about language, communication and learning and raised some fundamental questions about human language and human cognition. One of these questions concerns an assumption that seems to underlie a great deal of the work on intercultural communication, and that is, speakers of different named languages not only use language differently, but also think differently and have different worldviews. In this talk, I want to invite the participants to rethink about this issue, from the perspective of Translanguaging, which posits that bilinguals and multilinguals do not think unilingually and thinking goes beyond named languages and indeed beyond what has traditionally been conceived as linguistic versus non-linguistic processes. I offer my views on the existing work in intercultural communication and cross-linguistic studies of cognitive processing and Linguistic Relativity. Implications of this common-humanity-based conceptual stance for intercultural communication including business and workplace lingua franca communication, as well as for language learning and pedagogy, and research design are discussed.
Event date: 18/07/2024
Speaker: Prof. Wei LI (University College London)
Hosted by: Faculty of Humanities
- Subjects:
- Language and Languages
- Keywords:
- Communicative competence Translanguaging (Linguistics) Multilingualism Intercultural communication Language awareness
- Resource Type:
- Video
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Video
Humans have long tried to make artificial versions of themselves. It is now well established that we attribute human-like states to artificial others. However, the effect of interacting with artificial minds and bodies on the human sense of self and self-identity is less understood. In this talk I will present theoretical and empirical work looking at embodied joint agency in human/ human versus human/ robotic and virtual agents. Specifically, I will outline the key role of the human embodiment and sense of self in establishing joint agency with artificial others. I will discuss key implications of these claims on recent efforts to design autonomous and interactive artificial others. I will introduce the notion of ‘hybrid agency’ to describe these new, technologically mediated ways to embody and control in tandem human and artificial minds and bodies in real and virtual environments.
Event date: 7/2/2024
Speaker: Prof. Anna CIAUNICA (University of Lisbon)
- Subjects:
- Technology
- Keywords:
- Technology -- Social aspects Human-computer interaction -- Psychological aspects Artificial intelligence
- Resource Type:
- Video
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Video
Prof. Alex MIHAILIDIS, Associate Vice President of International Partnerships at the University of Toronto delivered the 19th PAIR Distinguished Lecture titled “The Future of Elder Care: Integrating Large Language Models” on 26 April 2024. The lecture attracted about 100 participants to join in person and captivated an online viewing audience of over 14,100 from different countries and regions to watch the live broadcast on multiple social media platforms, including Bilibili, WeChat, Weibo, YouTube, etc.
The lecture commenced with a welcome speech and speaker introduction by Prof. ZHENG Yongping, Director of the Research Institute for Smart Ageing (RISA), followed by an engaging presentation by Prof. Mihailidis. The content materials used in Prof. Mihailidis’s presentation were generated by ChatGPT, while he added the narrative.
In his presentation, Prof. Mihailidis first played several videos created by artificial intelligence (AI) to introduce what LLM is, how it can support elderly care services, some drawbacks of using LLM, and its future development. He supplemented that LLMs are advanced AI systems capable of understanding and generating human-like texts, as well as visual outputs and models that can respond to or interact with users. Next, Prof. Mihailidis outlined the specific benefits of using LLMs in elderly care, including the support tools and resources they offer to caregivers. He then delved into the ethical considerations and challenges in LLM design, such as privacy concerns, the risk of over-dependence on technology, and the barriers to technology adoption by older adults and their caregivers. To conclude, Prof. Mihailidis emphasised the role of empathetic and emotionally-intuitive AI in enhancing the quality of life for the elderly and supporting the caregiving ecosystem.
Following the presentation was a lively and insightful question-and-answer session moderated by Ir Prof. Zheng. The audience had a fruitful discussion with Prof. Mihailidis. A souvenir was presented by Prof. CHEN Qingyan, Director of PAIR, to thank Prof. Mihailidis for his excellent presentation and support to PAIR.
Event date: 26/04/2024
Speaker: Prof. Alex MIHAILIDIS (University of Toronto)
Hosted by: PolyU Academy for Interdisciplinary Research
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Video
The lecture commenced with a welcome speech and speaker introduction by Prof. CHEN Qingyan, Director of PAIR, followed by a presentation by Prof. Cui. He first shared his scientific journey by reminiscing about the old days when he moved abroad to develop an academic career after graduating in China and gradually became a highly successful scientist. Next, he explained the importance of interdisciplinary research and shared how the combination of medical science and engineering enables the development of health technologies such as imaging, keyhole surgery, in vitro diagnostics, in vitro fertilisation, etc. Prof. Cui emphasised that scientists are to “discover” and find out “how a thing happens” whereas engineers are to “create” and “make things happen”. He then gave some advice on how to do well in interdisciplinary research and shared some innovations in microbioreactor and point-of-care testing developed by him and his team which has achieved great success in research commercialisation and made significant contributions to drug discovery and public health. To conclude, Prof. Cui shared that scientific success is based on many factors, including team, facilities, timing, luck, etc., and encouraged the next generation of engineers and scientists to consider a career in biomedical engineering, an exciting and rewarding domain.
Following the lecture, a lively and insightful question-and-answer session was moderated by Ir Prof. ZHANG Ming, Director of the Research Institute for Sports Science and Technology (RISports), Head of the Department of Biomedical Engineering and Chair Professor of Biomechanics. The audience had fruitful discussions with Prof. Cui.
Event date: 23/04/2024
Speaker: Prof. Zhanfeng CUI (University of Oxford)
Hosted by: PolyU Academy for Interdisciplinary Research
- Keywords:
- Interdisciplinary research Interdisciplinary approach in education
- Resource Type:
- Video