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Hong Kong Polytechnic University
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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
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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e-book
Soil Trust project is addressing the food waste issue by experimenting with eco-friendly farming practices and community involvement. Soil Trust also develops the Growers Without Borders service learning program. By combining eco-friendly farming practices with creative community involvement, Soil Trust promotes sustainable land management and tackles the critical issue of food waste. Through the program, people from different backgrounds participate in farming practices that help the environment, using kitchen scraps to enrich the soil.
泥玩透過嘗試生態友善農業實踐和社區參與來解決食物浪費問題。泥玩也開發「泥玩無國界」服務學習計畫，透過將生態友善農業實踐與創造性的社區參與相結合，促進永續土地管理並解決食物浪費的關鍵問題。透過無國界種植者計劃，泥玩鼓勵來自不同背景的人們參與有益 於環境的農業實踐，利用廚房殘渣來肥沃土壤。
- Keywords:
- China -- Hong Kong Food waste -- Recycling Sustainable agriculture
- Resource Type:
- e-book
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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:
- Optical fibers Optical communications Fiber optics
- Resource Type:
- Video
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Video
The seminar began with a warm welcome by Prof. CHEN Qingyan, Director of PAIR, followed by a brief introduction of the speaker by Mr Gavin NGAI, Deputy Director of the Global Engagement Office. Dr Tzezana commenced his presentation by identifying the common myths about AI and discussing how these myths hinder public awareness of AI’s rapid development in various fields. He then projected AI’s capabilities towards the end of the decade, suggesting that AI would soon outperform humans in many areas. Dr Tzezanna also examined the broader implications of these advancements, particularly their impact on the future of work, and offered insights into the skills and knowledge areas essential for staying competitive and successful in this rapidly evolving landscape.
Event date: 24/9/2024
Speaker: Dr Roey TZEZANA
Hosted by: PolyU Academy for Interdisciplinary Research
- Subjects:
- Computing, Data Science and Artificial Intelligence and Mechanical Engineering
- Keywords:
- Artificial intelligence
- Resource Type:
- Video
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Video
The seminar began with a warm welcome by Prof. ZHANG Weixiong, Associate Director of PAIR, followed by a brief introduction of the speaker by Prof. ZHANG Chengqi, Chair Professor of Artificial Intelligence. Prof. Liu kick-started his presentation by outlining the key milestones in the evolution of robotics, and pointed out that human-centred intelligent robots should be able to co-exist, cooperate and collaborate with humans. He stated that robotics is a truly interdisciplinary field that combines engineering, science and humanities. Next, through a series of case studies, Prof. Liu examined how intelligent robots have been designed to work alongside humans in various applications, including civil infrastructure maintenance, construction, and manufacturing. He then discussed the dynamics of collaboration between humans and robots, and examined issues such as trust, computational modelling, physical and cognitive workload, brain-robot interface and human-centred design. By reflecting on the lessons learnt from these case studies, Prof. Liu highlighted both successes and challenges. At the end of his presentation, Prof. Liu emphasised that human-robot teaming is an interdisciplinary field. He also pointed out some areas for further development in the field, highlighting the many opportunities in robotics.
Event date: 10/10/2024
Speaker: Prof. LIU Dikai
Hosted by: PolyU Academy for Interdisciplinary Research
- Subjects:
- Computing, Data Science and Artificial Intelligence and Mechanical Engineering
- Keywords:
- Human-robot interaction Artificial intelligence Robotics
- 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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Others
This video is made by Dr. Pearl Lin and Dr. Clare Fung's project, "Great Case of Marketing in the Hospitality and Tourism Industry." A special thanks to Liu Xiaotian, who provided information and insights for this video. This case discusses a marketing strategy that leverages popular online trends and public relations tactics to promote a hotel brand and a major e-commerce platform. The key elements include: 1) Tapping into the widespread popularity of "domineering CEO" and "noble butler" themes in Chinese internet culture and staging a "handsome housekeeper" event to attract attention; 2) Carefully controlling the risks and social perceptions around the event, ensuring it is positioned as a one-time promotional activity rather than a regular hotel service; and 3) Filming the event across different hotel venues to showcase the Sofitel Hangzhou Yingguan property and generate significant exposure on social media platforms. The outcomes indicate significant reach and engagement but highlight the potential risks of such an approach, underscoring the importance of meticulous planning and monitoring to avoid unintended negative consequences.
本視頻由林博士和馮博士的專案「酒店和旅遊業行銷的傑出案例」製作。特別感謝劉嘯天為本視頻提供信息和見解。本案例討論了一種利用流行的在線趨勢和公共關係策略來推廣酒店品牌和主要電子商務平台的行銷策略。關鍵要素包括：1）利用「霸道總裁」和「貴族管家」主題在中國網路文化中的廣泛流行，舉辦「帥氣管家」活動吸引眼球；2）謹慎控制活動周圍的風險和社會認知，確保將其明確定位為一次性促銷活動，而不是常規的酒店服務；3）在不同的酒店場所拍攝活動，以展示杭州英冠索菲特酒店，並在社交媒體平台上產生大量曝光。這些結果表明了巨大的影響力和參與度，但也突出了這種方法的潛在風險，強調了細緻的規劃和監測以避免意外的負面後果的重要性。
- Subjects:
- Hotel, Travel and Tourism
- Keywords:
- Hotels -- Marketing Internet marketing Social media Hospitality industry -- Marketing
- Resource Type:
- Others
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Others
This video is made by Dr. Pearl Lin and Dr. Clare Fung's project, "Great Case of Marketing in the Hospitality and Tourism Industry." A special thanks to Huang Wenjie, who provided information and insights for this video. This case discusses the strategic brand positioning and marketing initiatives undertaken by Shunde Huaguiyuan Hotel Co., Ltd. to promote the Cantonese cuisine and food culture of Shunde, a well-known culinary destination in China. The hotel launched a high-end Cantonese restaurant called "Finding Shunde's Food," which employed a multifaceted marketing approach, including a digital strategy with online menus and social media engagement, community involvement and tourism partnerships, enhanced customer experience and service quality, as well as offline publicity and event-based promotions. The results were positive, with the restaurant's initial solid performance and positive customer feedback. However, the case also highlights the hotel's ongoing challenges in navigating a highly competitive catering market, managing costs, and adapting to rapidly changing consumer demands and market trends.
本視頻由林博士和馮博士的專案「酒店和旅遊業行銷的傑出案例」製作。特別感謝黃文傑為本視頻提供信息和見解。本案例討論了順德區華桂園酒店有限公司為推廣中國知名美食目的地順德的粵菜和飲食文化而採取的戰略性品牌定位和營銷舉措。酒店推出了一家名為「尋味順德」的高端粵菜餐廳，採用多方面的行銷方法，包括通過在線菜單和社交媒體參與、社區參與和旅遊合作的數位化策略，提升客戶體驗和服務品質，以及線下宣傳和活動式促銷。結果是積極的，餐廳的初期表現強勁，客戶反饋積極，儘管該案例也凸顯了酒店在駕馭競爭激烈的餐飲市場、管理成本以及適應快速變化的消費者需求和市場趨勢方面面臨的持續挑戰。
- Subjects:
- Food and Beverage and Hotel, Travel and Tourism
- Keywords:
- Hotels -- Marketing Caterers catering Hospitality industry -- Marketing
- Resource Type:
- Others