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World Journal of Emergency Medicine 2023年第4期14卷 307-311页

作者： hon Chun Kai Man Siu Department of Accident&Emergency Tseung Kwan O HospitalHong KongChina Department of Accident&Emergency United Christian HospitalHospitalHong KongChina

Aortic dissection(AD)is a potentially devastating cardiovascular disease ***,given the low incidence of AD(2.5 to 3.5 cases per 100,000person-years),the diagnosis of this disease remains relatively difficult in emergency settings.[1,2]Computed tomography aortogram(CTA)is the most commonly used diagnostic tool,which is an invasive investigation with renal impairment and is cost *** are lots of patients at low or moderate risk of AD,which may be no need for CTA *** a result,validated clinical strategies beyond clinical judgment are needed to manage patients with suspected AD.

关键词： patients dissection diagnosis

Kinetics of a Migration－Driven Aggregation－Fragmentation Process

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Communications in Theoretical Physics 2003年第2X期40卷 231-236页

作者： ZHUANGYou-Yi LINZhen-Quan KEJian-hon~ DepartmentofPhysics WenzhouNormalCollegeWenzhou325027China

We propose a reversible model of the migration-driven aggregation-fragmentation process with the symmetric migration rate kernels K (k; j) = K′(k; j) =λkj^v and the constant aggregation rates I1, I2 and fragmentation rates Jl, J2. Based on the mean-field theory, we investigate the evolution behavior of the aggregate size distributions in several cases with different values of index v. We find that the fragmentation reaction plays a more important role in the kinetic behaviors of the system than the aggregation and migration. When Jl = 0 and J2 = O, the aggregate size distributions αk(t) and bk(t) obey the conventional scaling law, while when Jl > 0 and J2 > O, they obey the modified scaling law with an exponential scaling function. The total mass of either species remains conserved.

关键词：迁移-驱动聚合过程分裂过程动力学定标规则聚合速率分裂速率人口迁移

Salt Tolerance in Soybean

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Journal of Integrative Plant Biology 2008年第10期50卷 1196-1212页

作者： Tsui-Hung Phang hon-Ming Lam Department of Biology The Chinese University of Hong KongShatinHong Kong China State Key Laboratory for Agrobiotechnology The Chinese University of Hong KongShatinHong Kong China

Soybean is an important cash crop and its productivity is significantly hampered by salt stress. High salt imposes negative impacts on growth, nodulation, agronomy traits, seed quality and quantity, and thus reduces the yield of soybean. To cope with salt stress, soybean has developed several tolerance mechanisms, including：（i） maintenance of ion homeostasis; （ii） adjustment in response to osmotic stress; （iii） restoration of osmotic balance; and （iv） other metabolic and structural adaptations. The regulatory network for abiotic stress responses in higher plants has been studied extensively in model plants such as Arabidopsis thaliana. Some homologous components involved in salt stress responses have been identified in soybean. In this review, we tried to integrate the relevant works on soybean and proposes a working model to describe its salt stress responses at the molecular level.

关键词： abiotic stress Glycine max ion homeostasis osmotic adjustment reactive oxygen species scavenging salt tolerance soybean.

The genus Pythium in Taiwan,China(1)-a synoptic review

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Frontiers in Biology 2009年第1期4卷 15-28页

作者： hon-Hing HO Department of Biology State University of New YorkNew PaltzNY 12561USA

The genus Pythium,with slightly over 280 described species,has been classified traditionally with other filamentous,coenocytic,sporangia-producing fungi as“Phycomyetes”.However,with recent advances in chemical,ultrastructural and molecular studies,Pythium *** now considered as“fungus-like organisms”or“pseudo-fungi”and are placed in the Kingdom Chromista or Kingdom Straminopila,distinct from the true fungi of the Kingdom Fungi or Kingdom *** are widely distributed throughout the world as soil saprophytes or plant *** of the warm moist maritime climate,Taiwan,China,is especially rich in Pythium *** date,48 species of Pythium have been reported from Taiwan,China,with the dominant species being ***,***,***,***,*** and *** is no definite geographical distribution of Pythium *** Taiwan,*** nine species of Pythium have proven to be plant pathogens attacking a wide variety of woody and herbaceous plants primarily causing pre-and post-emergence seedling damping-off,root rot,stem rot and rotting of fruits,tubers and ginger rhizomes,resulting in serious economic *** most important plant pathogenic species include *** and ***,which are most active during the hot and wet summer months;whereas ***,***,*** and *** cause the greatest damage in the cool *** Pythium *** non-specific pathogens,infecting mainly juvenile or succulent *** review attempts to assess the taxonomic position of the genus Pythium and provide details of the historical development of the study of Pythium as pathogens in Taiwan,China,causing diseases of sugarcane,trees,vegetables,fruits,specialty crops and flowering plants,as well as measures to control these *** special note is the introduction of the S-H mixture which,when used as soil amendment,effectively controls many soil-borne Pythium diseases during the ear

关键词： Pythiaceae oomycetes Chromista Straminolia plant pathogens soil-borne disease saprophytes mycoparasites biodiversity

Toward Cloud Computing QoS Architecture:Analysis of Cloud Systems and Cloud Services

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IEEE/CAA Journal of Automatica Sinica 2017年第1期4卷 6-18页

作者： Mohammad Hossein Ghahramani MengChu Zhou Chi Tin hon IEEE Institute of Systems Engineering Macao University of Science and Technology Helen and John C. Hartmann Department of Electrical and Computer Engineering New Jersey Institute of Technology School of Management Fudan University

Cloud can be defined as a new computing paradigm that provides scalable, on-demand, and virtualized resources for users. In this style of computing, users can access a shared pool of computing resources which are provisioned with minimal management efforts of users. Yet there are some obstacles and concerns about the use of clouds. Guaranteeing quality of service QoS by service providers can be regarded as one of the main concerns for companies tending to use it. Service provisioning in clouds is based on service level agreements representing a contract negotiated between users and providers. According to this contract, if a provider cannot satisfy its agreed application requirements, it should pay penalties as compensation. In this paper, we intend to carry out a comprehensive survey on the models proposed in literature with respect to the implementation principles to address the QoS guarantee issue. © 2014 Chinese Association of Automation.

关键词： Cloud computing Distributed computer systems System of systems Systems engineering Telecommunication services Web services

Synergistic Effect of Graphdiyne-based Electrocatalysts

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Chemical Research in Chinese Universities 2021年第6期37卷 1242-1256页

作者： WONG hon Ho SUN Mingzi HUANG Bolong Department of Applied Biology and Chemical Technology The Hong Kong Polytechnic UniversityHung HomKowloonHong Kong SARP.R.China

The synergistic effect can help improve the electrocatalyst performances by combining the advantages of individual *** particular,such an effect has been more important in the atomic *** this review,we have summarized the synergistic effect of N,X co-doping graphdiyne[X=B,S,F or transition metal(TM)]electrocatalysts and graphdiyne-based dual-atom catalyst(GDY-DAC).In general,the synergistic cooperation between two different dopants in co-doped GDY and adjacent active sites in GDY-DAC not only promotes their catalytic activity but also greatly enhances the thermodynamic stability of the *** the N,X co-doping GDY electrocatalysts,doping the heteroatoms like boron,sulphur,phosphorus,and fluorine with nitrogen can further tune the charge density distribution and electronic ***,the electron exchange between two doping atoms and GDY substrate has been discussed,where the TM-based GDY-DAC is a very promising catalyst for *** importantly,electronic interactions between different elements on GDY have been carefully *** the end,we have also supplied perspectives to the future developments of the GDY-based electrocatalysts.

关键词： Graphdiyne(GDY) Electrocatalyst Synergistic effect Dual-atom catalyst co-Doped GDY

Million-Q integrated Fabry-Perot cavity using ultralow-loss multimode retroreflectors

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Photonics Research 2022年第11期10卷 2549-2559页

作者： honGNAN XU YUE QIN GAOLEI HU hon KI TSANG Department of Electronic Engineering The Chinese University of Hong KongShatinNew TerritoriesHong KongChina

The monolithic integration of Fabry-Perot cavities has many applications,such as label-free sensing,high-finesse filters,semiconductor lasers,and frequency comb ***,the excess loss of integrated reflectors makes it challenging to realize integrated Fabry-Perot cavities working in the ultrahigh-Q regime(>10^(6)).Here,we propose and experimentally demonstrate what we believe is the first silicon integrated million-Q Fabry-Perot *** by free-space optics,a novel monolithically integrated retroreflector is utilized to obtain near-unity reflectance and negligible reflection *** corner scattering in the retroreflector is prevented by the use of the TE_(1) mode,taking advantage of its zero central field *** incurred by other mechanisms are also meticulously *** measurement results show resonances with an ultrahigh intrinsic Q factor of≈3.4×10^(6)spanning an 80-nm *** measured loaded Q factor is≈2.1×10^(6).Ultralow reflection losses(≈0.05 dB)and propagation losses(≈0.18 dB/cm)are experimentally realized.

关键词： scattering cavity optics

Breaking the resolution-bandwidth limit of chip-scale spectrometry by harnessing a dispersion-engineered photonic molecule

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Light(Science & Applications) 2023年第3期12卷 475-488页

作者： hongnan Xu Yue Qin Gaolei Hu hon Ki Tsang Department of Electronic Engineering The Chinese University of Hong KongShatinNew TerritoriesHong Kong SARChina

The chip-scale integration of optical spectrometers may offer new opportunities for in situ bio-chemical analysis,remote sensing,and intelligent health *** miniaturization of integrated spectrometers faces the challenge of an inherent trade-off between spectral resolutions and working ***,a high resolution requires long optical paths,which in turn reduces the free-spectral range(FSR).In this paper,we propose and demonstrate a ground-breaking spectrometer design beyond the resolution-bandwidth *** tailor the dispersion of mode splitting in a photonic molecule to identify the spectral information at different *** tuning over a single FSR,each wavelength channel is encoded with a unique scanning trace,which enables the decorrelation over the whole bandwidth spanning multiple *** analysis reveals that each left singular vector of the transmission matrix is mapped to a unique frequency component of the recorded output signal with a high sideband suppression ***,unknown input spectra can be retrieved by solving a linear inverse problem with iterative *** results demonstrate that this approach can resolve any arbitrary spectra with discrete,continuous,or hybrid *** ultrahigh resolution of100 nm far exceeding the narrow *** ultralarge wavelength-channel capacity of 2501 is supported by a single spatial channel within an ultrasmall footprint(≈60×60μm^(2)),which represents,to the best of our knowledge,the highest channel-to-footprint ratio(≈0.69μm^(−2))and spectral-to-spatial ratio(>2501)ever demonstrated to date.

关键词： resolution dispersion limit

A Bilinear Backlund Transformation and Lax Pair for a （1＋1）-Dimensional Differential-Difference sine-Gordon Equation

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Communications in Theoretical Physics 2007年第3X期48卷 487-490页

作者： QIAN Xian-Min hon-Wah Tam Department of Physics Shaoxing College of Arts and Sciences Shaoxing 312000 China Department of Physics Shanghai Jiao Tong University Shanghai 200030 China Department of Computer Science Hong Kong Baptist University Hong Kong China

In this paper, we obtain a 1＋1 dimensional integrable differential-difference model for the sine-Gordon equation by Hirota＇s discretization method. A bilinear Backlund transformation and the associated Lax pair are ... 详细信息

关键词： sine-Gordon equation Hirota's discretization method Backlund transformation Lax pair

Generation of Nonlinear Evolution Equations by Reductions of the Self-Dual Yang–Mills Equations

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Communications in Theoretical Physics 2014年第2期61卷 203-206页

作者：张玉峰 hon-Wah Tam College of Sciences China University of Mining and Technology Department of Computer Science Hong Kong Baptist University

With the help of some reductions of the self-dual Yang Mills(briefly written as sdYM) equations, we introduce a Lax pair whose compatibility condition leads to a set of(2 + 1)-dimensional equations. Its first reduction gives rise to a generalized variable-coefficient Burgers equation with a forced term. Furthermore, the Burgers equation again reduces to a forced Burgers equation with constant coefficients, the standard Burgers equation, the heat equation,the Fisher equation, and the Huxley equation, respectively. The second reduction generates a few new(2 + 1)-dimensional nonlinear integrable systems, in particular, obtains a kind of(2 + 1)-dimensional integrable couplings of a new(2 + 1)-dimensional integrable nonlinear equation.

关键词： self-dual Yang-Mills equation Lax pair (2+ 1)-dimensional integrable system integrable coupling