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溶膠-凝膠相轉變對於離子熱電性能的巨大影響

香港理工大學智能可穿戴系統研究院陶肖明教授團隊製備並研究了幾種不同的相轉變離子熱電系統，首次發現在泊洛沙姆(Poloxamer 407)/LiCl的離子體系中，熱電勢值可以在系統發生相轉變（液體至凝膠，17.4℃）時上升6.5倍（大約2mV/K至超過15mV/K），同時提升離子ZT值23倍(低於0.03至0.68)。該團隊隨即建立基於昂薩格（Onsager）方程的理論模型，分析離子在三個不同階段的遷移（相轉變前，相轉變中及相轉變後）並解釋了熱電勢值提升的來源，即相轉變下溶膠黏度的變化影響陰陽離子的遷移速率，從而造成了陰陽離子在高低溫端的濃度差。作者通過對相轉變前後的模型分析，提出了可能影響離子熱電勢的六個無量綱參數，並提出基於理論分析下熱電勢在相轉變時存在多個數量級提升的可能。通過對理論模型的研究及分析，作者提出了相轉變對熱電效應影響的普適性，即熱電性能的改變不受影響於相轉變的方式，並通過在其他相轉變體系的結果驗證了該結論。該成果提供並揭示了一種全新的設計並控製材料所需熱電性能的可能途徑，這將為室溫下可穿戴設備的低熱能收集應用帶來新的前景。該工作以題為“Gigantic Effect due to Phase Transition on Thermoelectric Properties of Ionic Sol–Gel Materials”發表在《Advanced Functional Materials》上。

智能可穿戴研究院與心心芭迪貝伊集團有限公司合作商談（只有英文版本）

（只有英文版本）Ms. Linda ZHENG, Mr. Yi ZHOU, Operation Director and Customer Service Director of My Heart Bodibra Limited, a subsidiary of Ocean Star Technology Group Limited, and Mr. Franky WONG, CEO of YELLO sport marketing agency visited RI-IWEAR for learning about the latest trend of the textile technologies on 9th Sept 2022. This visit was arranged with the help of Ms. Gloria LEUNG, Head of Projects from Proactive Think Tank.   Prof. Xiaoming TAO, Prof. Jintu FAN, Prof. Hong HU, Prof. Lilly LI, and Dr Dahua SHOU showed the recent research outputs which could be applied to the areas of underwear and sportswear. Ms. ZHENG shared her views on the needs of materials, especially materials' lifetime for the product inventory, and expressed the intention for the Business-School Partnership. 

陶肖明教授出席理大創新科技開放日並於研究與創新分會場發表演講（只有英文版本）

（只有英文版本）The Hong Kong Polytechnic University (PolyU) held the PolyU InnoTech Open Day in 16 July 2022 to showcase the University’s latest endeavours in education, interdisciplinary research, knowledge transfer and entrepreneurship which were helping to empower the innovation and technology (I&T) development of Hong Kong, the Greater Bay Area (GBA) and beyond. Prof. Xiaoming TAO, Director of RI-IWEAR, attended the Opening Ceremony also marked the inauguration of the PolyU Academy for Interdisciplinary Research (PAIR). PAIR is the largest research platform of its kind in Hong Kong and the GBA to foster interdisciplinary research, partnership with world-renowned scholars, and the transfer of technologies to stakeholders. Prof. Xiaoming TAO, Prof. Bingang XU, and Dr Tao HUA, as one of the 10 winning teams of the President’s Awards for Outstanding Achievement in Knowledge Transfer (KT), were also presented with the awards at the ceremony. The President’s Awards for Outstanding Achievement in KT recognises impactful projects demonstrated contributions in advancing technological or industry standards through application of PolyU’s research and innovations (for more information of the technology, please visit https://polyu.hk/vnLjb). In addition to the Opening Ceremony, a series of activities were held throughout the day, providing visitors with an excellent opportunity to learn more about PolyU’s contributions to I&T, as well as to explore academic, entrepreneurial and collaboration opportunities. The Research & Innovation breakout sessions featured novel and frontier topics related to life sciences, smart cities, neurohealth, future society, energy technology for carbon-neutrality, healthy food and lifestyle management, future manufacturing, artificial intelligence of things and intelligent wearable systems. These sessions served as a platform for industry practitioners and PolyU expert researchers to exchange views on technology innovation and development, collaboration, industry trends and applications. Prof. TAO gave a talk at the session of artificial intelligence of things and intelligent wearable systems. Please click here for more details. 

智能可穿戴系統研究院團隊獲得 2021 年知識轉移傑出成就校長獎（只有英文版本）

（只有英文版本）Further to the invitation of nominations in February 2021 and the subsequent assessment processes for the captioned, Prof. Xiaoming TAO, director of RI-IWEAR, and Prof. Bingang XU and Dr Tao HUA, two of RI-IWEAR members’ research Yarn-spinning Technology Revolution: Nu-TorquTM have obtained The President’s Awards for Outstanding Achievement in Knowledge Transfer 2021: Industry. A total of five teams was awarded this prize.   Nu-Torque is a revolutionary yarn-spinning technology that uses physical means to create yarns with lower torque and twist while achieving the same strength as conventionally spun yarns. Fabrics made with Nu-Torque yarns are less prone to deformation even after repeatedly washed, while also feel softer, look shinier and with less hairiness. Compared with conventional yarn-spinning technology, Nu-Torque also improves productivity, saves energy and reduces pollutions. Fabrics and garments made with Nu-Torque yarns are widely sold in the U.S., Europe, Japan and China.   Congratulation to our colleagues for the work on knowledge transfer.

2022智能可穿戴系統國際會議圓滿結束

由香港理工大學（理大）智能可穿戴系統研究院（RI-IWEAR）主辦的為期三日的智能可穿戴系統國際會議2022（ICIWS2022）於6月29日圓滿結束。該會議包括材料、設備和加工，傳感器、執行器和生物電子，能量收集和儲存，以及系統集成和新興應用四個主題，共邀請了29位專家分享了他們在柔性材料、傳感器、能源設備、可穿戴電子系統集成的基礎研究和應用的經驗。   本次會議吸引了來自中國、日本、韓國、新加坡、以色列、美國、加拿大、英國、德國、西班牙等21個國家和地區的1778餘人在線報名參會。報名參加者中，包括企業85人，科研機構53人，其餘來自高校。本次大會還通過YouTube、嗶哩嗶哩、微博、微信等多家社交媒體同步直播。根據社交媒體提供的統計數據，大會三天內，共有超過11萬人次註冊觀看。  

準確檢測異常步態並及時給予提示，可增強柏金遜患者行動能力的智能可穿戴系統（只有英文版本）

(只有英文版本)The entire world, approximately ten million people have Parkinson’s disease (PD), which is the second most popular neurodegenerative disease. The most distinct symptoms of PD are movement ("motor") related. Previously reported wearable systems for people with Parkinson’s disease (PD) have been focused on the detection of abnormal gait. They suffered from limited accuracy, large latency, poor durability, comfort, and convenience for daily use. Herewith an intelligent wearable system (IWS) was interdisciplinary research by Prof. Xiaoming TAO and Prof. Margaret Mak, which can accurately detect abnormal gait in real-time and provide timely cueing for PD patients. The system features novel sensitive, comfortable and durable plantar pressure sensing insoles with a highly compressed data set, an accurate and fast gait algorithm, and wirelessly controlled timely sensory cueing devices. A total of 29 PD patients participated in the first phase without cueing for developing processes of the algorithm, which achieved an accuracy of over 97% for off-line detection of freezing of gait (FoG). In the second phase with cueing, the evaluation of the whole system was conducted with 16 PD subjects via trial and a questionnaire survey. This system demonstrated an accuracy of 94% for real-time detection of FoG and a mean latency of 0.37 s between the onset of FoG and cueing activation. In the questionnaire survey, 88% of the PD participants confirmed that this wearable system could effectively enhance walking, 81% thought that the system was comfortable and convenient, and 70% overcame the FoG. Therefore, the IWS makes it an effective, powerful, and convenient tool for enhancing the mobility of people with PD. The research was recently published in Wearable Technologies.

【潮玩科技】電子衣物（只有英文版本）

（只有英文版本）Professor Zijian Zheng was interviewed by Now TV earlier, he introduced a new type of liquid-metal fibre mat developed by his team. The material is highly permeable and super elastic, which can be used for wearable electronic devices. Prof. Zheng expressed his hope in this research is to assist in athletes’ training and the medical field in the future.

RI-IWEAR 成員在 TechConnect全球創新獎 2022 上榮獲兩項大獎（只有英文版本）

（只有英文版本）Prof. Hong HU, Dr Dahua SHOU and Prof. Jintu FAN, members of Research Institute for Intelligent Wearable Systems (RI-IWEAR), won two prestigious global innovation awards in the areas of materials science and biotechnology at the TechConnect World Innovation Conference and Expo 2022 - the world’s largest multi-sector event for fostering the development and commercialisation of innovations.   The award-winning innovations include a new type of more environment-friendly moisture-absorbing and sweat-releasing fabric and an automatic temperature-controllable mask. Details are as follows: Moisture-Absorbing and Sweat-Releasing Multilayer Polylactic Acid Fabric and Manufacturing Technology (Prof. HU Hong, Institute of Textiles and Clothing) The new fabric stands out from existing moisture-absorbing fabric technology in that its fabrication technique is simpler, cheaper, and more environment-friendly. By employing double weft knitting technology, it only takes one single manufacturing process to produce the new fabric structure with improved moisture-absorbing and sweat-releasing properties. It also has inherent biological resistance and is ideal for use in school uniforms and sportswear. Omni-Cool-Breath: A Smart Air-Conditioned Mask (Dr SHOU Dahua, Professor FAN Jintu and Dr HUANG Guanghan, Institute of Textiles and Clothing) Omni-Cool-Breath is the first automatic temperature-controllable mask that brings revolutionary access to all-day cool breath and thermal comfort under various activities and thermal conditions. It reduces temperature by 12°C and humidity by 65% under low voltage via an innovative miniature thermoelectric cooling system. The ergonomically designed lightweight mask uses skin-friendly and biodegradable 3D printing materials that enable the user to enjoy nine hours of clean air.   For more information of the TechConnect 2022 Innovation Awardees, please visit the official website: https://www.techconnectworld.com/World2022/participate/innovation/awards.html

嚴鋒教授團隊研發便攜式新冠病毒抗體檢測儀 約6分鐘可測體內抗體水平

嚴鋒教授團隊研發出便攜式新冠病毒抗體檢測儀，透過配合手機應用程式，約6分鐘可測出體內的抗體水平。 新研發的新冠病毒抗體檢測儀運用有機電化學晶體管技術，測試接種疫苗後或感染病毒後的抗體水平。 團隊指，檢測儀的靈敏度較市面的快測抗體設備為高，使用者需以藍牙將檢測儀與手機應用程式連接，將唾液或血清樣本放在測試區，五分鐘後滴入電解質，再以手機應用程式啟動檢測，約20秒後，便會顯示樣本抗體水平，整個檢測過程需時約6分鐘，成本約為10元。

李寧博士到訪理大參觀研究成果（只有英文版本）

（只有英文版本）Dr Ning LI, Chairman of Li-Ning Company Limited, visited PolyU on 5th May 2022 to seek further cooperation with PolyU. Li-Ning Company Limited is a famous Chinese sportswear and sports equipment company founded in 1989 by Ning LI, a former Chinese Olympic gymnast.   Professor Xiaoming TAO, Director of RI-IWEAR, Professor Jintu FAN, Professor Li LI, and Dr Tracy MOK, members of RI-IWEAR gave introductions on the research related to sportswear and health care for sportsmen, displayed the examples of the latest textile technology, and demonstrated the monitoring and rehabilitation technology for the sportsman, respectively.   Dr Ning LI detailed consulted on the relevant technical requirements and the possible development directions. The whole process of technology introduction and demonstration was broadcasted to the R & D team of Li-Ning Company Limited at the same time. This is communication for research and development knowledge transfer.