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A historical re-analysis of the calamitous midget typhoon passing through Hong Kong region on 18 September 1906 and its storm surge impact to Hong Kong region

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Tropical Cyclone Research and Review 2022年第3期11卷 174-218页

作者： Hing Yim Mok Chi Ming Shun Stephen Davies Wing Hong Lui dick shum lau Kai Chun Cheung Kwan Yin Kong Sai Tick Chan Hong Kong Observatory Hong KongChina Hong Kong Maritime Museum Hong KongChina US National Oceanic and Atmospheric Administration USA

A typhoon passed through Hong Kong region suddenly and unexpectedly on 18 September 1906(the“Typhoon 1906”)and had a disastrous impact on Victoria Harbour and its surroundings in just a couple of *** the year 1906 was the“Bingwu”year in the Chinese calendar,the typhoon is also known historically as the“Bingwu Typhoon”.Tremendous loss of lives and property resulted,and the shipping and fishing communities were *** mysteries arising from this calamitous typhoon have existed to date:1)Why the Hong Kong region Observatory was not able to provide any forewarning?2)whether the storm surge reported in some contemporary records is entirely credible?This paper will focus on both of *** this paper,we re-analyse historical weather observations recorded in various historical documents and estimate the possible storm size,intensity and track of Typhoon 1906 using tropical cyclone *** on the re-analyses,the storm surges,storm tides and wave heights in Hong Kong region are also estimated using storm surge and wave *** results reveal that Typhoon 1906 was a midget typhoon,with a radius of maximum winds of 11 km or smaller,during its passage through Hong Kong *** explains why it was technically impossible for a forewarning to be given at that time when real-time weather observations from ships,meteorological satellites and radars were *** also estimate that the maximum storm surges(storm tides)in Hong Kong region were not higher than 0.82 m(2.43 mCD)and 1.98 m(4.15 mCD)in Victoria Harbour and Tolo Harbour *** figures are found to be limited by the intensity and the storm size of the ***,we conclude that the previously documented storm surge figures are not supported by the present study.

关键词： Bingwu typhoon Midget typhoon Storm surge Historical re-analysis Hong Kong region

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A REVIEW OF THE STORM CHARACTERISTICS OF TYPHOON KALMAEGI (1415) AND RELATED FORECASTING CONSIDER ATIONS IN HONG KONG

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Tropical Cyclone Research and Review 2014年第4期3卷 243-255页

作者： Chun-wing Choy Yee-ting Junella Tam dick-shum lau Wai-kin Wong Hong Kong Observatory Hong KongChina

Kalmaegi(1415)required the issuance of Gale or Storm Wind Signal No.8 in Hong Kong in 2014,even though it passed by at a distance of 370 km from Hong Kong during its closest *** surges triggered by Kalmaegi caused backflow of sea water in some low lying areas in both Hong Kong and *** paper reviews the use of observational data in monitoring the cyclone characteristics and studies the synoptic factors leading to its fast movement and extensive *** combined analysis of multi-platform satellite wind retrieval,in-situ surface observations and aircraft reconnaissance data over the northern part of the South China Sea is found to be useful in depicting the cyclone *** analysis suggests that the relatively large size of Kalmaegi may be attributed to monsoon shear pattern during its formation stage and the subsequent strengthening of southwesterlies over the northern part of the South China Sea.A strong subtropical ridge north of Kalmaegi not only provides strong steering and thus its high translational speed,but also leads to extensive gale force wind distribution over its northern *** performance of various numerical prediction models in forecasting the movement,intensity change and wind structure of Kalmaegi,as well as the storm surge triggered,is assessed and presented.

关键词： Kalmaegi Hong Kong tropical cyclone forecasting track wind structure

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Generation and Applications of a Broad Atomic Oxygen Beam with a High Flux-Density via Collision-lnduced Dissociation of O_(2)

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Chinese Journal of Chemistry 2024年第17期42卷 2010-2016页

作者： Zhiqiang Han Liying Song Po-Wan shum Woon-Ming lau Beijing Advanced Innovation Center for Materials Genome Engineering Center for Green InnovationSchool of Mathematics and PhysicsUniversity of Science and Technology BeijingBeijing100083China Shunde Innovation School University of Science and Technology BejingFoshanGuangdong 528399China School of Chemistry and Chemical Engineering Linyi UniversityLinyiShandong 276000China The Sun Age(Guangdong)New Energy Ltd ZhuhaiGuangdong 519031China

We detail the generation of a pulsed atomic oxygen(AO)broad beam with a high flux-density via collision-induced dissociation of O_(2) to support practical industrial exploitation of AOs,particularly for facilitating 2-dimenstional oxidation/etching at a fast rate of one-monolayer per second in an area≥1000 cm².This innovation fuses the following interdisciplinary concepts:(a)a high density of O^(*) can be produced in an electron-cyclotron-resonance(ECR)O2 plasma;(b)o^(*) can be extracted and accelerated with an aperture-electrode in the plasma.

关键词： Collision Atomic oxygen Ab initio calculations lon-molecule reactions Gas-phase reactions

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Medical therapy for clinical benign prostatic hyperplasia:α1 Antagonists,5α reductase inhibitors and their combination

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Asian Journal of Urology 2017年第3期4卷 185-190页

作者： Cheuk Fan shum Weida lau Chang Peng Colin Teo Department of Urology Khoo Teck Puat HospitalSingapore

Medical therapy for clinical benign prostatic hyperplasia(BPH)has advanced significantly in the last 2 *** new a1 antagonists and 5a reductase inhibitors(5ARi)are now commercially *** practicing urologist must decide on the most appropriate medication for his patients,taking into consideration various factors like efficacy,dosing regime,adverse effects,cost,patient’s socioeconomic background,expectations,drug availability and his own clinical *** use of combination therapy added further to the complexity in clinical judgment when *** highlight some of the key points in prescribing a1 antagonists,5ARi and their combination,based on our viewpoints and experience as urologists in an Asian clinical setting.

关键词： 5αReductase inhibitors Adrenergicα1 receptor antagonists Drug therapy Combination Prostatic hyperplasia

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Chinese topical herbal medicine gives additive effect on pharmaceutical agent on fracture healing

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Journal of Traditional Chinese Medicine 2019年第6期39卷 853-860页

作者： Siu Wing Sum Shiu Hoi Ting shum Wai Ting Ko Chun Hay lau Clara Bik San Hung Leung Kim Leung Ping Chung Institute of Chinese Medicine The Chinese University of Hong KongShatinNew TerritoriesHong Kong China State Key Laboratory of Research on Bioactivities and Clinical Applications of Medicinal Plants The Chinese University of Hong KongShatinNew TerritoriesHong Kong China Department of Orthopaedics and Traumatology The Chinese University of Hong KongShatinNew TerritoriesHong Kong China

OBJECTIVE:To investigate the efficacy on the combination of oral strontium ranelate(Sr R)with a topical Chinese herbal paste on facilitation of fracture ***:An open fracture was created at the mid-shaft of the right tibia of rat.A herbal pastecalled CDR containing Honghua(Flos Carthami),Chuanxuduan(Radix Dipsaci Asperoidis)and Dahuang(Radix Et Rhizoma Rhei Palmati)was *** rats were treated with either CDR topically on the fracture site,or Sr R orally,or their *** turnover biochemical markers in serum were *** of the fracture was analyzed using micro-CT after 14 and 28 d,followed by histomorphometrical ***:Micro-computed tomography analysis revealed that the combined treatment of CDR with600 mg/g Sr R significantly increased the total callus density,mineralized callus volume fraction,mineralized callus mineral content and mineralized callus density of the callus after 28 d of *** result was consistent with the histomorphometrical analysis on the osteoid *** of biochemical markers showed that the combined treatments reduced the bone resorption that occurs temporarily after ***:This study demonstrated that the combined treatment of oral Sr R and topical CDR is effective to promote fracture healing by their additive effect on promoting bone formation and retarding bone resorption.

关键词： Fracture healing Osteogenesis Bone resorption Medicine,Chinese Traditional Integrative medicine Strontium ranelate

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Seropharmacological Study on Osteogenic Effects of Post-Absorption Ingredients of An Osteoprotective Herbal Formula

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Chinese Journal of Integrative Medicine 2017年第1期23卷 25-32页

作者： SIU Wing-sum KO Chun-hay WONG Hing-lok GAO Si shum Wai-ting lau Clara Bik-san HUNG Lung-kim LEUNG Ping-chung Institute of Chinese Medicine Chinese University of Hong KongHong KongChina State Key Laboratory of Phytochemistry and Plant Resources in West China Chinese University of Hong KongHong KongChina Department of Orthopaedics and Traumatology Chinese University of Hong KonqHong KongChina

Objective： To further investigate the in vitro effects of an osteoprotective herbal formula ＂ELP＂（Herba Epimedii, Fructus Ligustri Lucidi and Fructus Psora/eae） using seropharmacological approach. Methods： Rats were fed with ELP or its individual component herbs for 2 days. The serum containing the post-absorbed ingredients of the herbal items were collected for cell culture using UMR106 cell, RAW264.7 cell and mesenchymal stem cell （MSC） isolated from the bone marrow of the rats. The effects of the herbal-containing serum on cell toxicity were detected by 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide assay; bromodeoxyuridine assay was conducted to measure the cell proliferation of UMR106 cell and MSC; cell activity was measured using colorimetric method, and mRNA expression of runt-related transcription factor 2 （Runx2）, alkaline phosphatase （ALP） and osteopontin （OPN） of UMR106 and MSC as well as matrix metalloproteinase 9 （MMP-9）, tartrate-resistant acid phosphatase （TRAP） and cathepsin K of RAW264.7 were analyzed using real-time reverse-transcription polymerase chain reaction. Results： ELP and its component serum exhibited no cytotoxic effects on the cells. The ELP-containing serum increased the proliferation of UMR106 cell and MSC by 25.7% and 14.4%, respectively and the alkaline phosphatase activity of MSC was increased by 42.6%. On the contrary, it inhibited the RAW264.7 cell differentiation by 29.2%. ELP serum upregulated the Runx2 expression of UMR and MSC by 1.18 fold and 1.27 fold, respectively. It also upregulated ALP and OPN expression in MSC by 1.69- and 2.12-fold, respectively. On the other hand, ELP serum down-regulated MMP-9 and cathepsin K expression of RAW264.7 cell by 0.46- and 0.36-fold, respectively. Conclusions： The serum of the animals fed with ELP contains active ingredients which are effective in promoting osteogenesis and inhibiting osteoclastogenesis.

关键词： osteoporosis seropharmacology osteogenesis herbal formula

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SPEEDMARK

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现代装饰 2014年第4期 108-115页

作者：何宗宪 dick Liu Ray lau 何宗宪设计公司

Speedmark在美国、中国等大城市都设有办公室，而此项目是位于香港的总部。设计重点并非仅为企业本身打造形象而设，而是希望利用工作环境促进员工与企业之间的联系。设计师利用物流行业本身的独特性质和运作程序，提出了一个适合物流... 详细信息

Speedmark在美国、中国等大城市都设有办公室，而此项目是位于香港的总部。设计重点并非仅为企业本身打造形象而设，而是希望利用工作环境促进员工与企业之间的联系。设计师利用物流行业本身的独特性质和运作程序，提出了一个适合物流的办公室作息生态。

关键词：建筑装饰装饰材料室内装饰环保材料

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Ultrafast laser-scanning time-stretch imaging at visible wavelengths

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Light(Science & Applications) 2016年第1期5卷 303-312页

作者： Jiang-Lai Wu Yi-Qing Xu Jing-Jiang Xu Xiao-Ming Wei Antony CS Chan Anson HL Tang Andy KS lau Bob MF Chung Ho Cheung shum Edmund Y Lam Kenneth KY Wong Kevin K Tsia Department of Electrical and Electronic Engineering The University of Hong KongPokfulam RoadHong Kong 999077China Department of Bioengineering University of WashingtonSeattleWashington 98195USA Department of Mechanical Engineering The University of Hong KongPokfulam RoadHong Kong 999077China

Optical time-stretch imaging enables the continuous capture of non-repetitive events in real time at a line-scan rate of tens of MHz—a distinct advantage for the ultrafast dynamics monitoring and high-throughput screening that are widely needed in biological ***,its potential is limited by the technical challenge of achieving significant pulse stretching(that is,high temporal dispersion)and low optical loss,which are the critical factors influencing imaging quality,in the visible spectrum demanded in many of these *** present a new pulse-stretching technique,termed free-space angular-chirpenhanced delay(FACED),with three distinguishing features absent in the prevailing dispersive-fiber-based implementations:(1)it generates substantial,reconfigurable temporal dispersion in free space(41 ns nm^(−1))with low intrinsic loss(o6 dB)at visible wavelengths;(2)its wavelength-invariant pulse-stretching operation introduces a new paradigm in time-stretch imaging,which can now be implemented both with and without spectral encoding;and(3)pulse stretching in FACED inherently provides an ultrafast all-optical laser-beam scanning mechanism at a line-scan rate of tens of *** FACED,we demonstrate not only ultrafast laser-scanning time-stretch imaging with superior bright-field image quality compared with previous work but also,for the first time,MHz fluorescence and colorized time-stretch *** results show that this technique could enable a wider scope of applications in high-speed and high-throughput biological microscopy that were once out of reach.

关键词： optical time-stretch imaging pulse stretching ultrafast laser scanning

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