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文明的和谐与共同繁荣：文明的普遍价值和发展趋向——北京论坛（2008）

作者： Patrick w.c.Lau Michael H.S.Lam beeto w.c.leung Hong Kong Baptist University University of Hong Kong

The main purpose of this study was to examine the changes of national identity of china’s mainland,Hong Kong and Taiwan before,during and after the Beijing 2008 Olympic *** consists of three *** present study belongs to the phase *** 2 and 3 will be repeated measured in Mid August and December ***,the role of sport identity and physical activity level on the formation of national identity of chinese children would be investigated among these three *** differences of gender,age,birth and residential places,sport identity as well as physical activity level on national identity would be *** were 480 boys and 447 girls aged 12 to 17 years from junior secondary schools in china’s mainland,Hong Kong and Taiwan.A set of validated questionnaire was administered to assess the changes of national identity in the three time *** analysis revealed that national identity and sport identity as well as national identity and physical activity level were weakly associated. Multiple regression analysis was employed to examine the contribution of different constructs on children’s national *** birth-residential place and sport identity were found to be a significant predictor of national *** of independent t-test indicated that junior secondary students had significantly lower national identity and sport identity but higher physical activity level than senior secondary *** the other hand,no significant difference was found in national identity between the *** differences were only found in sport identity and physical activity levels,with boys higher than ***,One-way ANOVA demonstrated that the"china born-china residential"group had significantly higher level of physical activity than the 3 other groups. To conclude,the phase 1 cross sectional data revealed that Mainland chinese children demonstrated greatest national identity among the three regions before the B

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国家认同与北京奥运会:大陆,台湾和香港三地学生的回应(英文)

国家认同与北京奥运会:大陆,台湾和香港三地学生的回应(英文)

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北京论坛（2008）文明的和谐与共同繁荣——文明的普遍价值和发展趋向

作者：刘永松 Michael H.S.Lam beeto w.c.leung Hong Kong Baptist University University of Hong Kong

The main purpose of this study was to examine the changes of national identity of china’s mainland,Hong Kong and Taiwan before,during and after the Beijing 2008 Olympic *** consists of three *** present study belongs to the phase *** 2 and 3 will be repeated measured in Mid August and December ***,the role of sport identity and physical activity level on the formation of national identity of chinese children would be investigated among these three *** differences of gender,age,birth and residential places,sport identity as well as physical activity level on national identity would be *** were 480 boys and 447 girls aged 12 to 17 years from junior secondary schools in china,Hong Kong and Taiwan.A set of validated questionnaire was administered to assess the changes of national identity in the three time *** analysis revealed that national identity and sport identity as well as national identity and PAQc were weakly *** regression analysis was employed to examine the contribution of different constructs on children’s national *** birth-residential place and sport identity were found to be a significant predictor of national *** of independent t-test indicated that junior secondary students had significantly lower national identity and sport identity but higher PAQc than senior secondary *** the other hand,no significant difference was found in national identity between the *** differences were only found in sport identity and physical activity levels, with boys higher than ***,One-way ANOVA demonstrated that the "china born-china residential" group had significantly higher level of physical activity than the 3 other groups. To conclude,the phase 1 cross sectional data revealed that Mainland chinese children demonstrated greatest national identity among the three regions before the Beijing Olympic Games *** suggested that the

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An improved pulse coupled neural networks model for semantic IoT

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Digital communications and Networks 2024年第3期10卷 557-567页

作者： Rong Ma Zhen Zhang Yide Ma Xiping Hu Edith c.H.Ngai Victor c.M.leung School of Information Science and Engineering Lanzhou UniversityLanzhou 730000China School of Medical Technology Beijing Institute of TechnologyBeijing100081China Department of Electrical and Electronic Engineer The University of Hong KongHong Kong 999077China college of computer Science and Software Engineering Shenzhen UniversityShenzhen 518060China Department of Electrical and computer Engineering the University of British ColumbiaVancouverBC V6T 1Z4Canada

In recent years,the Internet of Things(IoT)has gradually developed applications such as collecting sensory data and building intelligent services,which has led to an explosion in mobile data ***,with the rapid development of artificial intelligence,semantic communication has attracted great attention as a new communication ***,for IoT devices,however,processing image information efficiently in real time is an essential task for the rapid transmission of semantic *** the increase of model parameters in deep learning methods,the model inference time in sensor devices continues to *** contrast,the Pulse coupled Neural Network(PcNN)has fewer parameters,making it more suitable for processing real-time scene tasks such as image segmentation,which lays the foundation for real-time,effective,and accurate image ***,the parameters of PcNN are determined by trial and error,which limits its *** overcome this limitation,an Improved Pulse coupled Neural Networks(IPcNN)model is proposed in this *** IPcNN constructs the connection between the static properties of the input image and the dynamic properties of the neurons,and all its parameters are set adaptively,which avoids the inconvenience of manual setting in traditional methods and improves the adaptability of parameters to different types of *** segmentation results demonstrate the validity and efficiency of the proposed self-adaptive parameter setting method of IPcNN on the gray images and natural images from the Matlab and Berkeley Segmentation *** IPcNN method achieves a better segmentation result without training,providing a new solution for the real-time transmission of image semantic information.

关键词： Internet of things(IoT) Semantic information Real-time application Improved pulse coupled neural network Image segmentation

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A Simple Embedding Method for the Laplace-Beltrami Eigenvalue Problem onImplicit Surfaces

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communications on Applied Mathematics and computation 2024年第2期6卷 1189-1216页

作者： Young Kyu Lee Shingyu leung Department of Mathematics The Hong Kong University of Science and TechnologyClear Water BayHong KongChina

we propose a simple embedding method for computing the eigenvalues and eigenfunctions of the Laplace-Beltrami operator on implicit *** approach follows an embedding approach for solving the surface eikonal *** replace the differential operator on the interface with a typical cartesian differential operator in the surface *** proposed algorithm is easy to implement and *** will give some two-and three-dimensional numerical examples to demonstrate the effectiveness of our proposed approach.

关键词： Laplace-Beltrami operator Level set method Implicit representation Eigenvalues Numerical PDEs

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changes of tropical cyclone size in three oceanic basins of the northern hemisphere from 2001 to 2021

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Frontiers of Earth Science 2024年第2期18卷 312-323页

作者： Banglin ZHANG Jeremy cheuk-Hin leung Shengyuan LIU Jianjun XU Guangzhou Institute of Tropical and Marine Meteorology/Guangdong Provincial Key Laboratory of Regional Numerical weather Prediction CMAGuangzhou 510640China college of Atmospheric Science Lanzhou UniversityLanzhou 730020China college of Ocean and Meteorology Guangdong Ocean UniversityZhanjiang 524088China cMA-GDOU Joint Laboratory for Marine Meteorology&South china Sea Institute of Marine Meteorology Guangdong Ocean UniversityZhanjiang 524088China

In this study the changes of tropical cyclone(Tc)size from 2001 to 2021 are analyzed based on linear and quadratic curve fittings of the National Hurricane center(NHc)/Joint Typhoon warning center(JTwc)best track data,based on the radius of maximum wind(RMw)and the average radius of 34-kt wind(AR34),in three oceanic basins of the North Atlantic(NATL),the western North Pacific(wPAc)and the Eastern North Pacific(EPAc).The computations are done separately for two categories of tropical cyclones:tropical storms(TS)and hurricanes(HT).Size changes of landfalling and non-landfalling Tcs are also *** show that there is a great inter-basin variability among the changes in Tc *** conclusions include:1)overall,the inner cores of TSs have become larger in all three basins,with the increasing tendencies being significant in the NATL and wAPc,while those of HTs mostly get smaller or remain similar;2)meanwhile,comparatively large inter-basin differences are observed for the Tc outer core sizes,and the sizes of landfalling Tcs;3)particularly,a significant decrease in landfalling HT outer core size is observed over the EPAc;4)in contrast,significant increases in landfalling TS inner core size are found over the NATL and *** presented analysis results could benefit future research about Tc forecasts,storm surge studies,and the cyclone climate and its changes.

关键词： tropical cyclone storm size frequency intensity duration

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Translating bacteriophage-derived depolymerases into antibacterial therapeutics:challenges and prospects

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Acta Pharmaceutica Sinica B 2024年第1期14卷 155-169页

作者： Honglan wang Yannan Liu changqing Bai Sharon Shui Yee leung School of Pharmacy the Chinese University of Hong KongHong Kong SARChina Emergency Medicine clinical Research center Beijing Chao-Yang HospitalCapital Medical UniversityBeijing 100020China Department of Respiratory Shenzhen University General HospitalShenzhen University Clinical Medical AcademyGuangdong 518055China

Predatory bacteriophages have evolved a vast array of depolymerases for bacteria capture and *** depolymerases are enzymes responsible for degrading diverse bacterial surface *** are exploited as antibiofilm agents and antimicrobial adjuvants while rarely inducing bacterial resistance,making them an invaluable asset in the era of antibiotic *** depolymerases have been investigated preclinically,with evidence indicating that depolymerases with appropriate dose regimens can safely and effectively combat different multidrug-resistant pathogens in animal infection ***,some formulation approaches have been developed for improved stability and activity of ***,depolymerase formulation is limited to liquid dosage form and remains in its infancy,posing a significant hurdle to their clinical translation,compounded by challenges in their applicability and *** development must address these obstacles for clinical ***,after unravelling the history,diversity,and therapeutic use of depolymerases,we summarized the preclinical efficacy and existing formulation findings of recombinant ***,the challenges and perspectives of depolymerases as therapeutics for humans were assessed to provide insights for their further development.

关键词： Phage-derived polysaccharide depolymerases Bacteriophage proteins Bacterial capsules Polysaccharide capsules Antibiotic resistance Biofilms Antibacterial therapy Antimicrobial adjuvants combination treatment

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RepDNet:A re-parameterization despeckling network for autonomous underwater side-scan sonar imaging with prior-knowledge customized convolution

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Defence Technology（防务技术） 2024年第5期35卷 259-274页

作者： Zhuoyi Li Zhisen wang Deshan chen Tsz leung Yip Angelo P.Teixeira Department of Logistics and Maritime Studies The Hong Kong Polytechnic UniversityChina State Key Laboratory of Maritime Technology and Safety Wuhan University of TechnologyChina School of Transportation and Logistics Engineering Wuhan University of TechnologyChina National Engineering Research center for water Transport Safety Wuhan University of TechnologyChina centre for Marine Technology and Ocean Engineering(cENTEc) Instituto Superior TecnicoUniversidade de LisboaPortugal

Side-scan sonar(SSS)is now a prevalent instrument for large-scale seafloor topography measurements,deployable on an autonomous underwater vehicle(AUV)to execute fully automated underwater acoustic scanning imaging along a predetermined ***,SSS images often suffer from speckle noise caused by mutual interference between echoes,and limited AUV computational resources further hinder noise *** approaches for SSS image processing and speckle noise reduction rely heavily on complex network structures and fail to combine the benefits of deep learning and domain *** address the problem,Rep DNet,a novel and effective despeckling convolutional neural network is *** DNet introduces two re-parameterized blocks:the Pixel Smoothing Block(PSB)and Edge Enhancement Block(EEB),preserving edge information while attenuating speckle *** training,PSB and EEB manifest as double-layered multi-branch structures,integrating first-order and secondorder derivatives and smoothing *** inference,the branches are re-parameterized into a 3×3 convolution,enabling efficient inference without sacrificing *** DNet comprises three computational operations:3×3 convolution,element-wise summation and Rectified Linear Unit *** on benchmark datasets,a real SSS dataset and Data collected at Lake Mulan aestablish Rep DNet as a well-balanced network,meeting the AUV computational constraints in terms of performance and latency.

关键词： Side-scan sonar Sonar image despeckling Domain knowledge Re-parameterization

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Spatiotemporal variations of sand hydraulic conductivity by microbial application methods

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Journal of Rock Mechanics and Geotechnical Engineering 2024年第1期16卷 268-278页

作者： Viroon Kamchoom Thiti Khattiwong Treesukon Treebupachatsakul Suraparb Keawsawasvong Anthony Kwan leung Excellent centre for Green and Sustainable Infrastructure Department of Civil EngineeringSchool of EngineeringKing Mongkut’s Institute of Technology Ladkrabang(KMITL)Bangkok10520Thailand Department of Biomedical Engineering School of EngineeringKing Mongkut’s Institute of Technology Ladkrabang(KMITL)Bangkok10520Thailand Department of civil Engineering Thammasat School of EngineeringThammasat UniversityPrathumthani10200Thailand Department of civil and Environmental Engineering The Hong Kong University of Science and Technology(HKUST)Hong KongChina

The spatiotemporal distributions of microbes in soil by different methods could affect the efficacy of the microbes to reduce the soil hydraulic *** this study,the specimens of bio-mediated sands were prepared using three different methods,***,mixing,and pouring a given microbial so-lution onto compacted sand *** hydraulic conductivity was measured by constant-head tests,while any soil microstructural changes due to addition of the microbes were observed by scan-ning electron microscope(SEM)and mercury intrusion porosimetry(MIP)*** amount of dextran concentration produced by microbes in each type of specimen was quantified by a *** show that dextran production increased exponentially after 5-7 d of microbial settling with the supply of culture *** injection and mixing methods resulted in a similar amount and uniform dis-tribution of dextran in the *** pouring method,however,produced a nonuniform distri-bution,with a higher concentration near the specimen *** the supply of culture medium discontinued,the dextran content near the surface produced by the pouring method decreased dramatically due to high competition for nutrients with foreign *** dextran concentration was negatively and correlated with hydraulic conductivity of bio-mediated soils exponentially,due to the clogging of large soil pores by *** hydraulic conductivity of the injection and mixing cases did not change significantly when the supply of culture medium was absent.

关键词： Bio-mediated soil Dextran Hydraulic conductivity Leuconostoc mesenteroides Microbial application Microstructure

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Modelling smear effect of vertical drains using a diameter reduction method

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Journal of Rock Mechanics and Geotechnical Engineering 2024年第1期16卷 279-290页

作者： Zhichao Shen Siau chen chian Siew Ann Tan chun Fai leung School of Marine Science and Engineering South China University of TechnologyGuangzhouChina Department of civil and Environmental Engineering National University of SingaporeSingapore

Vertical drains are used to accelerate consolidation of clays in ground improvement *** zones exist around these drains,where permeability is reduced due to soil disturbance caused by the installation *** solution is widely used in practice to consider the effects of drain discharge capacity and smear on the consolidation *** this study,a computationally efficient diameter reduction method(DRM)obtained from the Hansbo solution is proposed to consider the smear effect without the need to model the smear zone *** by analytical and numerical results,a diameter reduction factor is analytically derived to reduce the diameter of the drain,while achieving similar solutions of pore pressure dissipation profile as the classical full model of the smear zone and *** the DRM,the excess pore pressure u obtained from the reduced drain in the original un-disturbed soil zone is accurate enough for practical applications in numerical *** performance of DRM is independent of soil material *** also show equally accurate performance of DRM under conditions of multi-layered soils and coupled radial-vertical groundwater flow.

关键词： consolidation Vertical drain Smear effect Pore pressure Soil improvement

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Learning about good nutrition with the 5-color front-of-package label"Nutri-Score":an experimental study

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Food Science and Human wellness 2024年第3期13卷 1195-1200页

作者： Robin c.Hau Klaus w.Lange University of Applied Sciences Landshut Landshut 84036Germany Faculty of Human Sciences University of RegensburgRegensburg 93040Germany

The Nutri-Score is a 5-color front-of-pack nutrition label designed to provide consumers with an easily understandable guideline to the healthiness of food *** impact that the Nutri-Score may have on consumers'choices is unclear since different experimental paradigms have found vastly different effect *** the present study,we have investigated how student participants change a hypothetical personal 1-daydietary plan after a learning phase during which they learn about the Nutri-Scores of the available food *** were instructed to compose a healthy diet plan in order that the question of whether the NutriScore would improve their ability to compose a healthy dietary plan could be investigated,independent of the question of whether they would apply this knowledge in their ordinary *** found a substantial(cohen's d=0.86)positive impact on nutritional quality(as measured by the Nutrient Profiling System score of the Food Standards Agency)and a medium-sized(cohen's d=0.43)reduction of energy *** content reduction was larger for participants who had initially composed plans with higher energy *** results suggest that the Nutri-Score has the potential to guide consumers to healthier food *** remains unclear,however,whether this potential will be reflected in real-life dietary choices.

关键词： Nutri-Score Front-of-package label Nudge Nutrition Health

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