Abstract A novel lead-free flexible piezoelectric energy harvester structure based on porous BCZT pillars and PDMS was achieved. Compared with 0–3 type piezoelectric composites, where the piezoelectric phase is isolated within the material, flexible piezoelectric energy harvesters based on a three-dimensional interconnected ceramic skeleton are of particular interest due to their high stress transfer capability and high piezoelectric coefficients. Herein, a novel lead-free flexible piezoelectric energy harvester structure based on porous BCZT pillars and PDMS was developed. The effect of porosity on piezoelectric coefficients, ferroelectric properties and energy harvesting performance is investigated in detail. The aligned BCZT-PDMS composite shows great potential in piezoelectric energy harvesting due to excellent piezoelectric properties and stress transfer capability compared with 0–3 type composites. The ...
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Instructors/Speakers Dr. Yu Ming TANG Senior Instructor, Department of Physics and Chemistry, FST Abstract Universities are the major force and platform that drive innovation, entrepreneurship, and commercialisation of scientific research results in Macao. In this talk, speaker will introduce the Cheng Yu Tung College (CYTC) initiated project on Entrepreneurship and Innovation Project and Industry-University-Research Partnership Project, hence reviewing the role of Resident College (RC) on these projects. For instance, cooperating with Faculty of Health Science of the University of Macau to study the anticancer effects of tea catechins alone or in combination with tyrosine kinase inhibitors in various in vitro and in vivo non-small cell lung cancer models. Cooperating with the Computing Science team in Shantou University to develop ... |
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Seminar – Pushing the Rheological and Mechanical Boundaries of 3D Bioprinting for Tissue Engineering
Seminar – Pushing the Rheological and Mechanical Boundaries of 3D Bioprinting for Tissue Engineering
Abstract 3D Bioprinting has opened a new avenue for tissue engineering and regenerative medicine, with the ability to directly manipulate living cells. Despite the considerable progress in the last decade, 3D bioprinting has long been subjected to trade-offs between physicochemical and biological outcomes. The resulting material properties of the initial bioinks, which are typically cell-laden formulations, and final printing products usually lie within a moderate range, which limits the application of bioprinting and its products. Recent progress in bioinks and bioprinting techniques has significantly expanded the window of material properties. In this talk, I will define two bioprinting windows to clarify the trade-offs between physical chemistry and biology. I will illustrate it with examples from our team and others that ... |
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海洋是構建海洋命運共同體、建設21世紀海上絲綢之路和推動粵港澳大灣區建設等國家發展戰略目標的主題之一。 會議主題：海洋環境安全及可持續發展 會議專題： （1）海洋水動力與氣候變化 （2）海洋碳循環與生物地球化學過程 （3）海洋交叉學科與海洋技術 會議時間：2022年11月23-27日 會議地點：澳門大學 Hong Kong and Macau Ocean 港澳海洋 粵港澳大灣區具有漫長海岸線，海域面積約占陸地總面積30%，具有天然海洋屬性，即是「一帶一路」建設的重要支撐，肩負著打造現代海洋產業基地和探索構建「海洋命運共同體」的使命，也是大灣區可持續發展的保障。 Marine Environmental Safety and Sustainable Development 海洋環境安全及可持續發展 香港和澳門具有獨特的地域與政策優勢及雄厚的科技力量，成為粵港澳大灣區科技協同創新建設的重要力量。為了更好參與粵港澳大灣區及國家海洋科技創新平臺建設，服務海洋強國和粵港澳大灣區建設等國家戰略，促進內地與港澳海洋領域的合作與交流，推動粵港澳大灣區海洋資源分享共建。港澳海洋研究中心聯合澳門大學將于澳門大學舉辦「首屆港澳海洋論壇」。 論壇以「海洋環境安全及可持續發展」為主題，邀請國內外海洋領域專家學者，針對與主題相關的科學和技術專題，搭建學術交流平臺，聚焦海洋環境的科學前沿，探討海洋海洋環境安全的科學，創新理論和技術，深化內地與港澳海洋資源共建，為大灣區及中國海洋環境安全及可持續發展貢獻力量。 會議報名連接：(由於疫情會議限制規模，請儘快登記) https://ust.az1.qualtrics.com/jfe/form/SV_2boE6Oswy3l53sq 或掃二維碼登記 |
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Date: 25 - 26 November 2022 (Friday) Time: 9:00 a.m. – 18:00 pm Venue: FST E11-G015 & Learning Commons, University of Macau Language: English & Putonghua Kindly be reminded to observe all pandemic preventive measures. Enrolment and event details: https://b.xiumi.us/stage/v5/4S5mn/412527576
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Date: 2022.11.29 (Tuesday) Time: 14:20 - 17:45 Online Seminar via Zoom: https://us06web.zoom.us/j/84373334028 Zoom Conference Number: 8437-3334-028 Conference Organizers: Prof. Wang-Ji YAN & Prof. Ka-Veng YUEN |
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Instructors/Speakers Prof. Rui WU Professor, Spin-X Institute, South China University of Technology Abstract Electric manipulation of magnetism is expected to reduce the size and power consumption of spintronic devices. However, the current material systems in which magnetic properties can be controlled electrically often suffer from drawbacks such as high operation voltage, small magnetoelectric coefficient, and obvious leakage current (especially in the 3-1 magnetoelectric composite system). In this talk, I will introduce our latest results on 3-1 type magnetoelectric nanocomposite films. Through material and structural design, we have successfully solved the leakage problem of 3-1 magnetoelectric systems, realized the obvious converse magnetoelectric effect (i.e. electric control of magnetism) and self-biased converse magnetoelectric effects at room temperature, which is of great ...
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Date: 2022.11.30 (Wednesday) Time: 16:00 - 17:00 Venue: N21-5/F EXHIBITION HALL (N21-5007) Language: English
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Website: https://cam.fst.um.edu.mo/mathday/ https://www.fst.um.edu.mo/wp-content/uploads/2022/11/微信图片_20221122173817-scaled.jpg
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Abstract Hydrogels are formed through the cross-linking of hydrophilic polymer chains within large amounts of water. The water-rich nature resembles extracellular matrices and makes them a natural choice for tissue engineering and biomedicine. In recent years, ascribed to the fast growing of wearable and implantable devices, hydrogel gradually emerges as an important material platform for designing soft electronics, artificial skin, actuators and on-body electricity generators. Also, due to the unique water state inside, hydrogels are taking a growing role in energy applications. In this talk, I will introduce the recent works from our group to engineer the heat and mass transfer in hydrogels for ionic conductor, ionic modulation, vapor pressure control and optical regulation. The applications include sensor design, microfluidic ...
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The Effects of Wave-current Interactions on Coastal Circulation Modelling Speaker: Prof. Xiao Hua WANG, Professor, The Sino-Australian Research Consortium for Coastal Management, School of Science, The University of New South Wales Date: 02/12/2022 (Friday) Time: 11:00 - 12:00 Language: English Venue: N21-5/F Exhibition Hall (N21-5007) Abstract: Understanding the wave-current interactions (WCI) is crucial to accurate modelling of wave, tides and storm surge in the coastal oceans. In this talk, I will use case studies to show WCI can greatly modify sea level and wave height via tide-induced water level changes and current advection/refraction of wave energy. More specifically, model results show that WCI affects wave set-up in the surf zone due to a balance between cross-shore pressure gradient and wave radiations stress ... |
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