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Dynamic responses of two buildings connected by viscoelastic dampers under bidirectional earthquake excitations

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Earthquake Engineering and Engineering Vibration 2014年第1期13卷 137-150页

作者： Z.D. Yang eddie S.S. lam Department of civil and Environmental Engineering The Hong Kong Polytechnic University

In this study,dynamic responses of two buildings connected by viscoelastic dampers under bidirectional excitations are extensively *** two buildings are a 10-story building and a 16-story building,with the shorter building on the *** dampers are installed at all fl oors of the shorter *** of motion are formulated using a fractional derivative model to represent the viscoelastic *** cases are considered with mass eccentricities at 0,10% and-10% with respect to the dimensions of the *** responses of the buildings are numerically predicted at different damper *** simulation results indicated that the maximum horizontal responses of the buildings without eccentricities are signifi cantly ***,torsional effects are adversely *** asymmetric buildings,the effectiveness of the connecting dampers is affected by building *** a result,mass eccentricities must be taken into account in damper *** compared with vibrations induced by unidirectional excitations,bidirectional excitations can increase the responses of coupled asymmetric *** addition,installing dampers only at the top fl oor of the shorter building may cause a sudden change in lateral stiffness of the taller ***,the story shear envelopes of the taller building are changed.

关键词： bidirectional excitations connecting dampers adjacent buildings fractional derivative

Wastewater Surveillance Provides Spatiotemporal SARS-coV-2 Infection Dynamics

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Engineering 2024年第9期40卷 70-77页

作者： Xiawan Zheng Kathy Leung Xiaoqing Xu Yu Deng Yulin Zhang Xi chen chung In Yau Kenny W.K.Hui eddie Pak Ho-Kwong chui Ron Yang Hein Min tun Gabriel Matthew Leung Joseph tsz Kei Wu Malik Peiris Leo Lit Man Poon tong Zhang Environmental Microbiome Engineering and Biotechnology Lab Center for Environmental Engineering ResearchDepartment of Civil EngineeringThe University of Hong KongHong Kong 999077China WHO collaborating centre for Infectious Disease Epidemiology and control School of Public HealthLi Ka Shing Faculty of MedicineThe University of Hong KongHong Kong 999077China Laboratory of Data Discovery for Health Litd.(D24H) Hong Kong 999077China the University of Hong Kong-Shenzhen Hospital Hong Kong 999077China School of Public Health Li Ka Shing Faculty of MedicineThe University of Hong KongHong Kong 999077China HKU-Pasteur Research Pole The University of Hong KongHong Kong 999077China Drainage Services Department The Government of the Hong Kong Special Administrative RegionHong Kong 999077China Environmental Protection Department The Government of the Hong Kong Special Administrative RegionHong Kong 999077China the Jockey club School of Public Health and Primary care Faculty of MedicineThe University of Hong KongHong Kong 999077China

Wastewater surveillance(WWS)can leverage its wide coverage,population-based sampling,and high monitoring frequency to capture citywide pandemic trends independent of clinical *** we conducted a nine months daily WWS for severe acute respiratory syndrome coronavirus 2(SARScoV-2)from 12 wastewater treatment plants(WWtPs),covering approximately 80%of the population,to monitor infection dynamics in Hong Kong,*** found that the SARS-coV-2 virus concentration in wastewater was correlated with the daily number of reported cases and reached two pandemic peaks three days earlier during the study *** addition,two different methods were established to estimate the prevalence/incidence rates from wastewater *** estimated results from wastewater were consistent with findings from two independent citywide clinical surveillance programmes(rapid antigen test(RAt)surveillance and serology surveillance),but higher than the cases number reported by the centre for Health Protection(cHP)of Hong Kong,***,the effective reproductive number(R_(t))was estimated from wastewater measurements to reflect both citywide and regional transmission *** findings demonstrate that large-scale intensive WWS from WWtPs provides cost-effective and timely public health information,especially when the clinical surveillance is inadequate and *** approach also provides insights into pandemic dynamics at higher spatiotemporal resolutions,facilitating the formulation of effective control policies and targeted resource allocation.

关键词： SARS-coV-2 Wastewater surveillance Prevalence Effective reproductive number

Performance in the Fundamentals of Laparoscopic Surgery: Does it reflect global rating scales in the Objective Structured Assessment of technical Skills in porcine laparoscopic surgery?

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Asian Journal of Urology 2024年第3期11卷 443-449页

作者： Ho Yee tiong Wei Zheng So Jeremy Yuen-chun teoh Shuji Isotani Gang Zhu teng Aik Ong eddie Shu-Yin chan Peggy Sau-Kwan chu Kittinut Kijvikai Ming Liu Bannakji Lojanapiwat Michael Wong Anthony chi-Fai Ng Yong Loo Lin School of Medicine Department of SurgeryNational University of SingaporeSingapore S.H.Ho Urology centre Department of SurgeryThe Chinese University of Hong KongHong KongChina Department of Urology Juntendo University Graduate School of MedicineTokyoJapan Department of Urology National University HospitalSingapore Department of Urology Beijing United Family HospitalBeijingChina Department of Surgery University of Malaya Specialist CentreKuala LumpurMalaysia Division of Urology Department of SurgeryTuen Mun HospitalHong Kong Department of Urology Ramathibodi HospitalMahidol UniversitySalayaThailand Department of Urology Beijing HospitalBeijingChina Department of Urology Chiangmai Ram HospitalChiang MaiThailand International Urology Fertility&Gynaecology CentreSingapore

Objective:to correlate the utility of the Fundamentals of Laparoscopic Surgery(FLS)manual skills program with the Objective Structured Assessment of technical Skills(OSAtS)global rating scale in evaluating operative ***:the Asian Urological Surgery training and Educational Group(AUStEG)Laparoscopic Upper tract Surgery course implemented and validated the FLS program for its usage in laparoscopic surgical ***’basic laparoscopic skills were assessed using three different training models(peg transfer,precision cutting,and intra-corporeal suturing).they also performed live porcine laparoscopic surgery at the same *** surgery skills were assessed by blinded faculty using the OSAtS rating ***:From March 2016 to March 2019,a total of 81 certified urologists participated in the course,with a median of 5 years of post-residency *** differences in task time did not reach statistical significance,those with more surgical experience were visibly faster at completing the peg transfer and intra-corporeal suturing FLS ***,they took longer to complete the precision cutting task than participants with less *** OSAtS scores correlated weakly with all three FLS tasks(peg transfer time:r=0.331,r^(2)=0.110;precision cutting time:r=0.240,r^(2)=0.058;suturing with intracorporeal knot time:r=0.451,r^(2)=0.203).conclusion:FLS task parameters did not correlate strongly with OSAtS globing rating scale *** FLS task models demonstrated strong validity,it is important to assimilate the inconsistencies when benchmarking technical proficiency against real-life operative competence,as evaluated by FLS and OSAtS,respectively.

关键词： theFundamentalsof Laparoscopic Surgery the Objective Structured Assessment of technical Skills Laparoscopic training Surgical education Surgical training Urological laparoscopic surgery

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不止能打印纸张的喷墨打印机

科技纵览 2024年第4期 34-39,4页

作者： PHILLIP W.BARtH LESLIE A.FIELD eddie GUY(图) 不详

20世纪80年代初的办公室很嘈杂,充满了金属敲击油墨色带在纸上打印出字符的声音.IBM Selectric电动打字机噼啪作响,菊轮式打印机咔嗒咔嗒,点阵打印机发出响亮的撕扯声.

关键词：喷墨打印机点阵打印机色带 IBM 20世纪80年代初电动打字机打印字符

A Provably Secure and Efficient Remote Password Authentication Scheme Using Smart cards

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computers, Materials & continua 2022年第6期71卷 6125-6145页

作者： Fairuz Shohaimay eddie Shahril Ismail Department of Mathematical Sciences Faculty of Science and TechnologyUniversiti Kebangsaan MalaysiaUKM Bangi43600SelangorMalaysia Department of Mathematics Faculty of Computer and Mathematical SciencesUniversiti Teknologi MARA PahangRaub CampusRaub27600PahangMalaysia

communication technology has advanced dramatically amid the 21st century,increasing the security risk in safeguarding sensitive *** remote password authentication(RPA)scheme is the simplest cryptosystem that serves as the first line of defence against unauthorised entity *** the literature contains numerous RPA schemes,to the best of the authors’knowledge,only few schemes based on the integer factorisation problem(IFP)and the discrete logarithm problem(DLP)that provided a provision for session key agreement to ensure proper mutual ***,none of the previous schemes provided formal security proof using the random oracle ***,this study proposed an improved RPA scheme with session key establishment between user and *** design of the proposed RPA scheme is based on the widely established Dolev-Yao adversary ***,as the main contribution,a novel formal security analysis based on formal definitions of IFP and DLP under the random oracle model was *** proposed scheme’s performance was compared to that of other similar competitive schemes in terms of the transmission/computational cost and time *** findings revealed that the proposed scheme required higher memory storage costs in smart ***,the proposed scheme is more efficient regarding the transmission cost of login and response messages and the total time complexity compared to other scheme of similar security ***,the proposed scheme outperformed the other RPA schemes based on IFP and ***,the potential application of converting the RPA scheme to a user identification(UI)scheme is considered for future *** RPA and UI schemes are similar,the proposed approach can be expanded to develop a provably secure and efficientUI scheme based on IFP and DLP.

关键词： Authentication scheme discrete logarithm factorisation password provable security

Liver natural killer cells： subsets and roles in liver immunity

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cellular & Molecular Immunology 2016年第3期13卷 328-336页

作者： Hui Peng eddie Wisse Zhigang tian Institute of Immunology and the cAS Key Laboratory of Innate Immunity and chronic Disease School of Life Sciences and Medical Center University of Science and Technology of China Hefei Anhui China collaborative Innovation center for Diagnosis and treatment of Infectious Diseases State Key Laboratory for Diagnosis and Treatment of Infectious Diseases First Affiliated Hospital College of Medicine Zhejiang University Hangzhou Zhejiang China Maastricht Multimodal Molecular Imaging Institute Division of Nanoscopy Universiteitssingel 50 Maastricht The Netherlands

the liver represents a frontline immune organ that is constantly exposed to a variety of gut-derived antigens as a result of its unique location and blood supply, With a predominant role in innate immunity, the liver is enriched with various innate immune cells, among which natural killer （NK） cells play important roles in host defense and in maintaining immune balance, Hepatic NK cells were first described as ＇pit cells＇ in the rat liver in the 1970s, Recent studies of NK cells in mouse and human livers have shown that two distinct NK cell subsets, liver-resident NK cells and conventional NK （cNK） cells, are present in this organ, Here, we review liver NK cell subsets in different species, revisiting rat hepatic pit ceils and highlighting recent progress related to resident NK cells in mouse and human livers, and also discuss the dual roles of NK cells in liver immunity,

关键词： conventional NK cell liver liver-resident NK cell pit cell tolerance.

国际药品监管的发展趋势和契机--《中国新药杂志》专访赛诺菲公司首席注册官及全球注册事务负责人eddie Reilly

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中国新药杂志 2022年第24期31卷 I0007-I0009页

作者： eddie Reilly 赛诺菲公司

《中国新药杂志》:eddie先生您好,我们看到制药企业正在经历着行业内外复杂而深刻的形势变化,能否谈谈您对制药行业总体环境和趋势的看法呢?eddie:您好,很荣幸接受贵刊采访!的确,我们正处在变化之中。众所周知,目前全球人口已达80亿。... 详细信息

《中国新药杂志》:eddie先生您好,我们看到制药企业正在经历着行业内外复杂而深刻的形势变化,能否谈谈您对制药行业总体环境和趋势的看法呢?eddie:您好,很荣幸接受贵刊采访!的确,我们正处在变化之中。众所周知,目前全球人口已达80亿。随着人口增长和其他驱动因素如气候变化、世界多地生活方式的改变(增加了罹患代谢性疾病、肥胖和心血管疾病的风险,且风险持续上升)。

关键词：制药企业制药行业药品监管代谢性疾病心血管疾病总体环境气候变化驱动因素

How does covid-19 affect global equity markets?

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Financial Innovation 2022年第1期8卷 624-642页

作者： eddie c.M.Hui Ka Kwan Kevin chan ZN744 Department of Building and Real EstateThe Hong Kong Polytechnic UniversityHung HomHong KongChina

this study applies OLS,panel regression and Granger causality test to investigate the impact of the coronavirus disease 2019(covid-19)outbreak on the global equity markets during the early stage of the *** find that the covid-19 outbreak has a significant negative impact on the overall equity index return of the eight economies even at 0.1%significance ***,the pandemic has a more significant impact on the European countries than on the East Asian *** results have three main ***,policy makers should react fast to mitigate the impact of a ***,investors should be aware of an outbreak of disease or other risks and adjust their investments ***,the covid-19 outbreak results in a shift of power from the west to the east.

关键词： covid-19 confirmed cases Panel regression Equity index

computer analysis of arbitrary reinforced concrete cross-section under bieccentric load

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Progress in Natural Science:Materials International 2000年第4期 64-71页

作者：刁波,叶英华,Siu-Shu eddie lam Department of civil Engineering Beijing University of Aeronautics and Astronautics Beijing 100083 china Department of civil Engineering Beijing University of Aeronautics and Astronautics Beijing 100083 china Department of civil and Structural Engineering the Hong Kong Polytechnic University Hong Kong china

the computational aspects of the problem of ultimate strength analysis of arbitrary reinforced concrete cross-sections under normal force and biaxial bending are considered. the cross-section secant stiffness derived here insures the convergence of the solution for the equilibrium equations in any load case. the stress-strain relations of concrete and reinforcements are expressed in terms of the piece-wise continuous cubic polynomials. the coefficients of the cross-section equilibrium equations are evaluated numerically by applying the integration rules proposed by Rieckmann and Sommerfield. the present approach is demonstrated through several examples.

关键词： bieccentric load reinforced concrete arbitrary cross-section computer analysis.