大學基礎研究雄厚 發展香港成創科中心 河套可發揮大灣區科技轉移功能

香港大學科研基礎好,中大工程學院副院長黃錦輝教授認為,香港可發展成創科中心,因為香港科研底氣足實力雄厚人才濟濟,大灣區應建立大灣區研究基金推動研究 。一起聽聽黃教授的分析。

Date: 
Monday, May 10, 2021
mc_group: 
Commentary
Media: 
Master Insight

CUHK Engineering Research Launched in the Market in Partnership with HGC for Advanced Data Security and Smart City Development in Hong Kong

Date: 
2021-05-10
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A research team from the Faculty of Engineering, The Chinese University of Hong Kong (CUHK) and CU Coding Ltd. (CUC) announced the launch in the market of its patented technology nEdge and nCloud solutions with the provision of one-stop managed telecom and ICT services by HGC Global Communications Limited (HGC). The partnership helps CUC to advance its platform, uplift the data security across multi-cloud for enterprises, and boost the Smart City Development in Hong Kong.
 
The nCloud and nEdge solutions are based on network coding technology, and were founded by Professor Patrick Pak Ching Lee, Associate Professor, Department of Computer Science and Engineering, CUHK in 2018, and operated by CUC, an Independent Software Vendor (ISV) for network coding technology applications. nCloud is a network coding-based multi-cloud storage system which can significantly enhance data storage security by distributing data among cloud storage providers, thereby lowering operating costs and streamlining access. By connecting Internet of Things (IoT) end-points, nEdge becomes a key technology to boost 5G communications and Smart City development in Hong Kong.
 
nCloud and nEdge offer enterprises and organisations in the local ISV ecosystem network a full range of intelligent services, innovative and practical applications, and large-capacity information channels. To launch the technologies in the market, CUC has received an integrated solution from HGC to advance its platform, including multi-layer security, Smart IoT service, network connectivity and infrastructure hosting.
 
With the support of HGC’s smart server rack and Smart AI Portal (SAIP), CUC can also effectively monitor its facilities with the AI alert to enhance overall security, which has become the first advance towards a “Zero Trust” framework. To further advance the facility management policy, an innovative record-and-alert approach is adopted to record and monitor the actual operation temperature, and authorised persons will be arranged to conduct an inspection at CUC’s infrastructure when an alarm is received. The partnership has tightened the cooperation of both companies and will help CUC to expand its market presence.
 
Professor Patrick Lee said, “nEdge and nCloud are deep technology (deeptech) in nature. Deeptech is defined as a scientific breakthrough or significant advancement which has far-reaching implications across sectors and can potentially change human life for the better. We have conducted applied research on large-scale storage and networked systems, including distributed systems across edge and cloud computing. Our effort ensures that nEdge and nCloud can achieve their guarantees of performance, scalability, dependability, and generality. We are very excited at this successful commercialisation of new technologies, leveraging the capabilities of HGC and CUC.”
 
Mr. Aldous Ng, Co-founder and CEO of CUC, said, “The successful landing of nEdge and nCloud in the market is from the teamwork of CUC and HGC. nEdge and nCloud are the best examples of deeptech commercialisation by collaboration between industry and universities in Hong Kong. The process of commercialisation entails understanding of the markets in general, identifying potential users and targeting as many people as possible who will benefit from these breakthrough technologies.”
 
Ms. Cecilia Wong, Executive Vice President, Product & Innovation of HGC, said, “HGC has extensive experience in serving businesses of different scales and being an enabler of other service providers. Apart from HGC’s top-notch network infrastructure, a variety of other core services such as cloud, unified communications and A2P-SMS API gateway enables customers to address their primary and on-going business needs. HGC is delighted to support start-up companies such as CUC and provide a cutting-edge service platform that enables them to focus on core business and business development in local and overseas market with the support of our regional professional team.”
 
Mr. Chris Chow, Head of Product and Project Solution of HGC, said, “Start-up companies usually struggle to select the right service and best practice to maintain their operation. HGC’s Smart+ portfolio facilitates system monitoring with IoT. Our self-developed SAIP is a consolidated platform to link across HGC services with AI and IA (Intelligent Automation) capability. We aim at transforming IoT from the traditional Internet of Things for monitoring into Intelligence of Things, emphasising operational efficiency. The unique AI Alert function enables different user groups to communicate based on the severity level to drastically reduce users’ decision cycle.”
 
Mr. Alex Chan, General Manager of Enterprise Market, HGC, said, “HGC always supports SMEs and we are energizing different business partners, in particular start-up partners to capture growth opportunities in a dynamic business environment and maximize business efficiency and ROI by fully utilizing their product’s competitive edges, so that they are able to get to market in a faster and smarter way.”
 
About the Faculty of Engineering, CUHK
 
Founded in 1963, CUHK is a forward-looking comprehensive research university. The Faculty of Engineering was founded in 1991, offering undergraduate and postgraduate programmes through its six departments: Biomedical Engineering, Computer Science and Engineering, Electronic Engineering, Information Engineering, Mechanical and Automation Engineering, and Systems Engineering and Engineering Management. The Faculty has world-class teaching staff coming from prestigious universities possessing extensive teaching experience and is equipped with state-of-the-art facilities to support teaching and research activities. The Faculty launches a wide range of innovative projects that make use of AI to improve the quality of human life, and explores the application of AI and deep learning in various areas, such as smart living, smart mobility and smart environment, in order to build Hong Kong into a world-class smart city.
 
The Faculty’s mission is to train future leaders in engineering, to pursue knowledge at the frontier of modern technology, and to apply advanced technology to meet societal and human needs.
 
For more information about CUHK Faculty of Engineering, please visit www.erg.cuhk.edu.hk.
 
About CU Coding Ltd.
 
CU Coding Limited is a DaaS (Data-as-a-Service) solution provider for enterprises to enhance security and network reliability through multi-cloud service providers. The Company was founded in 2018 by a team of distinguished scholars and serial entrepreneurs, and was named by the world’s top information technology research and consulting company Gartner as “the notable player in the emerging Intelligent Infrastructure market”.
 
CUC is an active member of the Incu-Tech and Leading Enterprises Acceleration Programme (LEAP) of Hong Kong Science and Technology Parks Corporation. Its flagship products, nCloud and nEdge, enables interoperability of all public cloud vendors with the highest-grade security and geo-distribution. The Company has secured more than 300 institutional clients to-date with enriched experience in DaaS solution, and is currently expanding its business to the Greater Bay Area with a grant of RMB 20 million funded by the Chinese Academy of Sciences in 2020.
 
About HGC Global Communications Limited
 
HGC Global Communications Limited (HGC) is a leading Hong Kong and international telecom operator and ICT solution provider. The company owns an extensive network and infrastructure in Hong Kong and overseas and provides a broad range of advanced telecommunications and ICT services. Headquartered in Hong Kong and operating 23 overseas offices on five continents, it provides telecom infrastructure service to other operators and serves as a service provider to corporates and households. The company provides full-fledged telecom, data centre services, ICT solutions and broadband services for local, overseas, corporate and mass markets. HGC owns and operates an extensive fibre-optic network, five cross-border telecom routes integrated into tier-one telecom operators in mainland China and connects with hundreds of world-class international telecom operators. HGC is one of Hong Kong’s largest Wi-Fi service providers, running over 29,000 Wi-Fi hotspots in Hong Kong. The company is committed to further investing in and enriching its current infrastructure and adding the latest technologies and solutions. HGC is a portfolio company of I Squared Capital, an independent global infrastructure investment manager focusing on energy, utilities and transport in North America, Europe and selected fast-growing economies.
 
To learn more, please visit HGC’s website at: www.hgc.com.hk

(From Left) Mr. Alex Chan, General Manager of Enterprise Market of HGC; Professor Patrick Lee, Associate Professor, Department of Computer Science and Engineering, CUHK; Mr. Aldous Ng, Co-founder and CEO of CUC; Mr Chris Chow, Head of Product and Project Solution of HGC, and Ms. Cecilia Wong, Executive Vice President, Product & Innovation of HGC.

 

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CSE
IE
Media Release

中大新技術 液流電池壽命增

中大成功研發一款新技術,可大幅提高液流電池壽命,普及大型電網儲能,令液流電池的商業化邁進一大步。
相比傳統鋰離子電池,液流電池的優勢在於安全、電量輸出功率大、設計靈活,適合用於風能、太陽能的電網儲能裝置,以及可快速換電的電動交通工具等。然而,液流電池的能量密度低,成本高,較難應用於大型電網儲能技術。
充電後可用15小時 助商業化
 
Date: 
Wednesday, May 5, 2021
Media: 
Hong Kong Economic Times

中大工程學院新技術提高液流電池使用壽命

香港中文大學指機械與自動化工程學系副教授盧怡君領導研究團隊成功研發可用於硫基液流電池之新型「電荷增強型離子選擇性膜」;電池在利用新技術和沒有明顯容量衰減下,運作時間提高至逾2千小時、每次充滿電後可持續使用達15小時;而研究結果已刊登於國際期刊《自然‧能源》。

Date: 
Wednesday, May 5, 2021
Media: 
香港商報

CUHK Engineering Develops New Technology Extending the Lifetime of Redox Flow Batteries and the Development of Grid-scale Energy Storage

Date: 
2021-05-04
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A research team led by Professor Yi-Chun Lu, Associate Professor, Department of Mechanical and Automation Engineering, Faculty of Engineering has successfully developed a novel charge-reinforced ion-selective (CRIS) membrane for sulphur-based redox flow batteries, with 15 consecutive hours of runtime and over 2,000 hours cycling without obvious capacity decay. The new battery has taken a significant step forward in the practical application of redox flow batteries in grid-scale storage for renewable energy, and in its commercialisation, by resolving the problems posed by its poor lifetime and low cost-effectiveness. The breakthrough has been recently published in the world-leading scientific journal Nature Energy.
 
Conventional sulphur-based redox flow batteries with poor lifetime are not optimal for grid-scale energy storage
 
Aqueous redox flow batteries are a novel energy storage technology in which electricity is generated by electron transfer between two electrolytes. Compared to lithium-ion batteries, redox flow batteries are distinguished by the high safety, high power density and high flexibility in design which can be widely applied to devices including large-scale storage for renewable energy generated from solar or wind, and fast switching electric vehicles. However, the low energy density and high cost of conventional redox flow batteries determine their market penetration.
 
In 2016, a promising polysulfide-iodide redox flow battery was first invented by Professor Lu’s team taking advantage of the eco-friendly and low-cost sulphur element to greatly improve its energy density and cost effectiveness. However, the sulphur-based redox flow batteries adopting a commercial ion-selective membrane are compromised by the crossover and precipitation of active materials, leading to a rapid capacity decay and poor lifetime, and its application in large-scale energy storage fails to be effective. For example, a polysulfide-bromine project was launched by a UK technology company in the 1990s, but it was abandoned eventually due to its low energy density and poor lifetime. This led to a long-unsolved challenge for scientists.
 
CRIS membrane enables record stability and cycling
 
Based on the findings on the polysulfide-iodide redox flow batteries, Professor Lu has made efforts to improve the cycling stability and lifetime of the batteries. The team has designed the CRIS membrane, a simple and readily applicable incorporation of polymer-bounded carbon to create an ultra-thin cover, and place it on the commercial Nafion membranes (product model N117) to keep the two electrodes apart. The absorption of negatively charged species in porous carbon has strengthened the negative charge of the membrane and reduced the loss of active materials, which dramatically increased the stability and the lifetime of batteries. It is the first time in the world this goal has been achieved by using this new membrane, and it promises an effective application in grid-scale energy storage devices.
 
The demonstrated polysulfide-iodide redox flow batteries revealed an ultralow capacity decay rate (0.005% per day) for 1,200 cycles, and also achieved record high cycling stability and calendar lifetime with over 2,000 hours cycling (approximately 3 months), in comparison to only 160 hours cycling (approximately 6.7 days) with the commercial membrane N117, given that there is no obvious capacity decay. In addition, the coulombic efficiency of new batteries is more than 99.9% for every cycle with 15 consecutive hours of runtime on being fully charged, while there is 3 to 4 consecutive hours of runtime for sulphur-based redox flow batteries with a commercial membrane N117, and for lithium-ion batteries.
 
Under the condition in which the energy storage device with a new battery continuously operated and discharged for more than 15 hours, the surprising result yielded, in turn, a levelised cost of storage (LCOS) for this system which is competitive with other state-of-the-art redox flow techniques for long-duration energy storage applications. This approach can be universally applied in other redox flow batteries using sulphur-bromine or sulphur-iron materials, and in organic redox flow batteries, which goes further to fulfil a high stability of cycling.
 
Professor Lu said, “This approach successfully addresses the long-unresolved problems in the crossover of active materials in redox flow batteries and their poor lifetime. This encouraging membrane design strategy will enable practical commercialisation of sulphur-based redox flow batteries and guide the future development of highly-selective ion exchange membrane.”
 
The full text of journal can be founded at: https://doi.org/10.1038/s41560-021-00804-x

The CRIS membrane developed by Professor Yi-Chun Lu (right) and her team member Dr. Zhejun Li (left) can enhance the lifetime of sulphur-based redox flow batteries, and can be widely applied to large-scale storage devices.

Crossover comparison between CUHK’s charge-reinforced ion-selective membrane (CRIS, right) and commercial Nafion membrane (N117, left).

The prototype of demonstrated polysulfide-iodide redox flow batteries with CRIS membrane.

Diagram of a polysulfide-iodide redox flow battery. CRIS membrane repels the crossover of active materials themselves which dramatically improve the stability and lifetime of batteries, while the commercial membrane is challenged by the crossover of active materials which accelerates the capacity decay of battery.

 

 

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Faculty
MAE
Media Release

台處理出軌事故 顯港軟實力優勢

四月二日台灣花蓮發生嚴重鐵路事故,滿載乘客的火車與從山坡滑下的工程車相撞,造成四十九人死亡,包括年輕的火車司機。台灣國家運輸安全委員會翻看列車的「黑盒」,了解到司機看到工程車時已盡全力煞車。死者已矣,台灣鐵路管理局堅持殉職司機英勇盡責,然而,卻有部分人認為司機若於意外發生之前能及早慢駛,撞擊力便會大大減輕,死傷人數便不會如此慘重。雖然筆者對此評論不盡同意,但這一說法也是當頭棒喝,引發幾個技術問題:為甚麽司機是唯一的把關者?為甚麽到了最後七秒鐘,他才知道前面有失事工程車?這些問題,也值得香港設計運輸糸統的人思考。

Date: 
Monday, April 26, 2021
mc_group: 
Commentary
Media: 
Sing Tao Daily

CUHK x ASTRI Industry Talk Series: Data Analytics vs. Data Privacy, Synergy or Compromise?

Speakers:

Dr. KH Shum has over 25 years of working experience in both the industry and academia. He is currently the Director of Applied Cryptosystems, Cybersecurity, Cryptography & Trusted Technology Division in Hong Kong Applied Science and Technology Research Institute (ASTRI). His experience in the IT industry includes CTO and technical director positions in various IT companies, specializing in the areas of security, e-payment, and fintech solutions. The IT systems designed by him had been deployed widely in Singapore, Hong Kong, Korea, Japan, Thailand and other countries in Asia.
 
Prof. Sherman Chow got his Ph.D. from Courant Institute of Mathematical Sciences, New York University. He publishes in and serves as a program committee of many top-tier conferences in cryptography and security, including AsiaCrypt, CCS, and Usenix Security, and fintech and privacy conferences, such as PETS and Financial Cryptography. He is the Deputy Editor in Cryptography of IET Information Security, and served on the award committee of The Caspar Bowden Award for Outstanding Research in Privacy Enhancing Technologies in 2019. He is a European Alliance for Innovation (EAI) Fellow (2019, inaugural), and named as one of the 100 Most Influential Scholars (Security and Privacy, 2018) by ArnetMiner (AMiner). He is also a founding member of IEEE SMC's Blockchain technical committee and a research committee of the Hong Kong Blockchain Society.

Event Details : http://edm.erg.cuhk.edu.hk/cuhk-x-astri-series2/

Registration : https://cuhk.zoom.us/webinar/register/WN_aso8eQbERWuAthOgWUmNvw

Organiser: 
Hosted by: CUHK x ASTRI
Venue
Live Webinar
Date: 
Thursday, April 29, 2021
Time
Thursday, April 29, 2021 to 17:00
e_title: 
Data Analytics vs. Data Privacy, Synergy or Compromise?
Not Available
Allow Regsiter: 

中大研發AI分析CT影像 僅0.04秒辨別病灶位置 有助判斷出罕見病情

疫情下為病人「照肺」是其中一項找出確診者的重要方法,但解讀醫學影像需時,難免對臨床工作造成負擔。中大工程學院及醫學院組成聯合研究團隊,開發出人工智能(AI)系統,可自動檢測胸部電腦斷層掃描(CT)影像上的肺炎病灶,平均每次僅需0.04秒即能辨別病灶位置,並計算出佔全肺範圍比例,便利醫生分析及診斷。團隊預料,系統可大幅提高相關診斷的效率,協助監察病人病情變化,並減少人為失誤。

Date: 
Tuesday, April 20, 2021
Media: 
蘋果日報網

中大研 AI 助篩查新冠病人徵狀 40 毫秒完成 準確率達 96%

人工智能或可協助診斷新冠肺炎!香港中文大學研究團隊開發了一個人工智能系統(AI),可快速及準確地自動檢測胸部電腦斷層掃描(CT)影像上的新冠肺炎感染徵狀,其準確度高達96%,料可用於診斷、監察治療病情進展及預測治療成效。
 
Date: 
Thursday, April 22, 2021
Media: 
On.CC

AI system ‘rapidly and accurately’ detects Covid

The Chinese University has developed an artificial intelligence system that it says can detect Covid-19 
infections in tomography images, computer-generated cross-sections of people's bodies. It says the 
rapid and accurate system is already being used on the mainland and in Germany. One of the 
researchers, Dr Tiffany So, from the Department of Imaging and Interventional Radiology, told 
Annemarie Evans how it works.
Date: 
Thursday, April 22, 2021
Media: 
RTHK English

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