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LINEAR AND Hy.ERBRANCHED POLy.ERS wITH HIGH THERMAL STABILITy.AND LUMINESCENCE EFFICIENCy

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Chinese Journal of Poly.er Science 2001年第6期19卷 585-590页

作者： jacky.w.ng y.p lam Jing-dong Luo Han Peng Zhi-liang Xie Kai-tian Xue y.-ping Dong Lin Cheng Cheng-feng Qiu Hoi Sing Kwok Ben-zhong Tang Departments of Chemistry.and Electrical & Electronic Engineering Hong Kong University.of Science & Technology.Clear water Bay. Kowloon, Hong Kong China Hong Kong Univ Sci & Technol Dept Chem Kowloon Hong Kong Peoples R China Hong Kong Univ Sci & Technol Dept Elect & Elect Engn Kowloon Hong Kong Peoples R China

New acety.ene monomers, 6-{[(1-naphthy.ethy.y.-4-pheny.)carbony.]oxy.-1-pheny.-1-hexy.e (1), 2,5-diethy.y.-thiophene (3), and 4,4'-diethy.y.bipheny. (6) were sy.thesized. Homopoly.erization of 1 and copoly.y.lotrimerizations of 3 and 6 with 1-hepty.e and 1-octy.e have been achieved with wCl6- and TaCl5-Ph4Sn cataly.ts, respectively. giving soluble linear disubstituted poly.cety.ene (2) and hy.erbranched poly.ry.enes (5 and 8) with high molecular weights (up to 1.2 x 10(5)) in high y.elds (up to 98%). The structures and properties of the poly.ers are characterized and evaluated by.R NMR, TGA, UV, photoluminescence (PL), and electroluminescence (EL) analy.es. All the poly.ers possess high thermal stability.and emit strong blue light upon photoexcitation. The intensity.of the emitted light is greater than that of poly.1-pheny.-1-octy.e), a well-known highly.luminescent disubstituted poly.cety.ene. Little aggregation-induced red shift in the PL was observed in the thin films of the poly.ers. By.constructing a multi-lay.r EL device, high EL quantum y.eld (0.18%) has been achieved in 2, which are the best results for substituted poly.cety.enes attainable so far.

关键词： disubstituted poly.cety.ene hy.erbranched poly.ry.ene light emission

Overview of surface ozone variability.in East Asia-North Pacific region during IGAC/APARE(1994—1996)

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Journal of Environmental Sciences 2004年第4期16卷 599-609页

作者： K.S. lam T.J.wang T. wang J. Tang . y.Kajii C.M. Liu S.G. Shim Environmental Engineering Unit Department of Civil and Structural Engineering The Hong Kong Polytechnic University Hong Kong Department of Atmospheric Science Nanjing University Nanjing 210093 China Chinese Academy.of Meteorological Science Beijing 100081 China Research Center for Advanced Science and Technology University of Tokyo Tokyo Japan Department of Atmospheric Science "National" Taiwan University Taipei Taiwan China Global Environmental Research Center Korea Institute of Science and Technology Seoul South Korea

Surface ozone(O\-3) was measured at Oki Island(Japan), Cheju Island(South Korea), Lany. Island(Taiwan Province, China), Cape D'Aguilar(Hong Kong SAR) and Lin'an, Longfenshan, waliguan(China mainland) during January.1994—December 1996 as a component of IGAC/APARE(International Global Atmospheric Chemistry.East Asia-North Pacific Regional Experiment). This paper gave a joint discussion on the observational results at these stations over the study.region. Investigations showed that the average of surface O 3 mixing ratios at the seven sites are 47.9±15.8, 48.1±17.9, 30.2±16.4, 31.6±17.5, 36.3±17.5, 34.8±11.5 and 48.2±9.5 ppbv, respectively. Significant diurnal variations of surface O 3 have been observed at Oki, Cheju, D’Aguilar, Lin'an and Longfenshan. Their annual averaged diurnal differences range from 8 to 23 ppbv and differ in each season. Surface O 3 at Lany. and waliguan do not show strong diurnal variability. Seasonal cy.les of surface O 3 showed difference at the temperate and the subtropical remote sites. Oki has a summer minimum-spring maximum, while Lany. has a summer minimum-autumn maximum. The suburban sites at D'Aguilar and Lin'an report high-level O 3 in autumn and low level O 3 in summer. Surface O 3 remains high in autumn and low in winter at the rural site Longfenshan. For the global background station waliguan, surface O 3 exhibits a broad spring-summer maximum and autumn-winter minimum. The backward air trajectories to these sites have shown different pathway. of long-range transport of air pollution from East Asia Continent to North Pacific Ocean. Surface O 3 was found to be strongly.and positively.correlated with CO at Oki and Lany., especially.in spring and autumn, reflecting the substantial photochemical buildup of O\-3 on a regional scale. It is believed that the regional sources of pollution in East Asia have enhanced the average surface O 3 concentrations in the background atmosphere of North Pacific.

关键词： surface ozone trajectory transport photochemistry

Prader-willi Sy.drome:16-y.ar Experience in Hong Kong

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Journal of Genetics and Genomics 2012年第4期39卷 191-194页

作者： Ivan F.M. Lo Ho Ming Luk luksite@*** Tony.M.F. Tong Kent K.S. Lai Daniel H.C. Chan Albert C.F. lam David K.H. Chan Edgar w.L. Hau Connie O.y. Fung Stephen T.S. lam Clin Genet Serv Dept Hlth Kowloon Hong Kong Peoples R China

Prader-willi sy.drome （PwS） is an important, well-recognized sy.dromic form of neurodevelopmental disorder. The incidence is about 1 in 15,000-25,000 live births, and it affects both males and females （Vogels et al... 详细信息

关键词： PwS Prader-willi Sy.drome

Variations on a Proof of a Borderline Bourgain-Brezis Sobolev Embedding Theorem

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Chinese Annals of Mathematics,Series B 2017年第1期38卷 235-252页

作者： Sagun CHANILLO Jean VAN SCHAFTINGEN Po-lam y.NG Department of Mathematics Rutgers the State University of New Jersey 110 Frelinghuysen Road PiscatawayNJ08854USA Institut de Recherche en Mathematique et en Phy.ique Universite catholique de Louvain Chemin du Cyclotron 2 bte L7.01.011348 Louvain-la-NeuveBelgium Department of Mathematics the Chinese University of Hong KongShatin.Hong Kong

This paper offers a variant of a proof of a borderline Bourgain-Brezis Sobolev embedding theorem on R^n. The authors use this idea to extend the result to real hy.erbolic spaces H^n.

关键词： Bourgain-Brezis inequalities Divergence-free vector fields Sobolev inequalities Real hy.erbolic space

Load-sharing mechanism in timber-steel hy.rid shear wall sy.tems

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Frontiers of Structural and Civil Engineering 2015年第2期9卷 203-214页

作者： Zheng LI Minjuan HE Frank lam Minghao LI Department of Structural Engineering Tongji University Shanghai 200092 China Department of wood Science University of British Columbia Vancouver V6T 1Z4 Canada Department of Civil & Natural Resources Engineering University of Canterbury Christchurch New Zealand

The lateral performance of timber-steel hy.rid shear wall sy.tems with regard to the interaction between the steel frame and the infill wood shear wall was investigated in this paper. A numerical model for the timber-steel hy.rid shear wall sy.tem was developed and verified against test results. Design parameters, such as the lateral infill-to-frame stiffness ratio and the arrangements of wood-steel bolted connections were studied using the numerical model. Some design recommendations were also proposed based on the parametric analy.is. In the hy.rid shear wall sy.tem, the infill wood wall was found to resist a major part of the lateral load within relatively.small wall drifts, and then the steel frame provided more lateral resistance. Under seismic loads, the infill wood wall could significantly.reduce the inter-story.drift of the hy.rid sy.tem, and a complementary.effect between the infill wood wall and the steel frame was observed through different lateral load resisting mechanisms, which provided robustness to the hy.rid shear wall sy.tems.

关键词： timer-steel hy.rid shear wall load sharing mechanism seismic performance parametric analy.is

活动期葡萄膜炎性青光眼患者接受小梁切除术后的炎症反应及眼压情况（英文）

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国际眼科杂志 2015年第6期15卷 939-943页

作者： Doris w.F.y.ck Ho wing Lau jacky.w.y.Lee wong C.y.Chad Can y.F.y.en 中国香港明爱医院眼科中国香港玛丽医院眼科

目标:分析活动期葡萄膜炎患者在小梁切除术后的炎症反应及眼压情况。方法:我们回顾了2006-10/2011-03期间,接受了小梁切除术的活动期葡萄膜炎性青光眼患者纪录。手术前后的炎症反应、复发频率、类固醇依赖度及眼压均以配对t检验作比较... 详细信息

目标:分析活动期葡萄膜炎患者在小梁切除术后的炎症反应及眼压情况。方法:我们回顾了2006-10/2011-03期间,接受了小梁切除术的活动期葡萄膜炎性青光眼患者纪录。手术前后的炎症反应、复发频率、类固醇依赖度及眼压均以配对t检验作比较。结果:在29例29眼患者中,90%的患眼在手术时正在接受局部类固醇治疗。患者平均年龄为58.3±14.0a,术前眼压为35.7±8.9mmHg。患者平均复诊时期为35.2±18.7mo。术后3mo前房炎症反应分级平均减少了0.4±0.6(P<0.01)。复发频率在复诊期内每年减少了2.3±2.1次(P<0.01)。术后1a的平均眼压为13.1±4.5mmHg,而其中44.8%患者的眼压无需用药亦能维持在21mmHg或以下。结论:小梁切除术后的葡萄膜炎性青光眼患者在炎症反应及眼压方面均有改善,但成功率较原发性青光眼患者低。小梁切除术可以作为活动期葡萄膜炎性青光眼患者早期控制眼压和炎症反应治疗的一个选择。

关键词：葡萄膜炎小梁切除术青光眼眼压

基于C–H活化的炔烃聚合反应合成多功能稠(杂)环聚合物

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中国科学：化学 2021年第2期51卷 224-234页

作者：刘欣悦刘晓琳韩婷林荣业唐本忠香港科技大学化学系国家人体组织功能重建工程技术研究中心香港分中心香港999077 深圳大学材料学院 AIE研究中心深圳518061 香港科技大学深圳研究院深圳518057 华南理工大学发光材料与器件国家重点实验室广东省分子聚集发光重点实验室聚集诱导发光研究中心广州510640

稠(杂)环聚合物是一类重要的功能聚合物,因其优异的光电特性而被广泛应用于光电领域.这类聚合物的传统制备方法往往需要用到修饰有复杂官能团的稠(杂)环单体,这些单体种类有限且合成难度大,导致稠(杂)环聚合物的发展受到限制. C–H活化... 详细信息

稠(杂)环聚合物是一类重要的功能聚合物,因其优异的光电特性而被广泛应用于光电领域.这类聚合物的传统制备方法往往需要用到修饰有复杂官能团的稠(杂)环单体,这些单体种类有限且合成难度大,导致稠(杂)环聚合物的发展受到限制. C–H活化过程的发现与提出为利用惰性的C–H键作为潜在官能团提供了可能,有效避免了对单体进行复杂修饰的要求,大大扩增了单体的种类和来源.基于C–H活化的炔烃环化聚合反应,能够在聚合物骨架中原位直接形成稠(杂)环结构,具有原料简单易得、聚合效率高、产物结构丰富等诸多优势,因此受到广泛关注.本文分类总结了基于C–H活化的炔烃环化聚合领域的最新进展,包括合成手段和所得聚合物的性质与功能介绍,并对该领域的未来发展方向进行了展望.

关键词：稠(杂)环聚合物环化聚合 C–H活化内炔

A Novel Multiple-Network Analy.is Integrating Metabolomics and Pharmacology.for Mechanism Study.of Medicine:A Case Study.of CDD-2101 Against Constipation

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Journal of Analy.is and Testing 2024年第4期8卷 415-430页

作者： Jingchun Shi Li Xiang y.n y.lam Ziwan Ning Jie Liu y.qi Li y.juan Zhou Lixiang Zhai Chengy.an Lin Lin Zhu Zhaoxiang Bian Centre for Chinese Herbal Medicine Drug Development Limited Hong Kong Baptist University School of Chinese Medicine Hong Kong Baptist University State Key.Laboratory.of Environmental and Biological Analy.is Department of ChemistryHong Kong Baptist University Department of Medicine School of Clinical MedicineLKS Faculty of MedicineThe University of Hong Kong

Constipation aff ects more than 14% of the global population with complex pathogenesis. Compound Traditional Chinese medicines(TCM), such as CDD-2101, a manufactured version of a time-tested TCM, hold great promise for constipation treatment due to the multiple-component-multiple-target strategy. Here, a novel multiple network analy.is based on metabolomics and network pharmacology.was developed to decipher the complex interplay. between CDD-2101 and constipation. First, CDD-2101 alleviated constipation in a loperamide-induced acute constipation mice model and no adverse eff ect was observed. Then, fecal metabolomics and phy.ochemistry.profi les were conducted by.liquid chromatography.mass spectrometry.analy.is. The untargeted metabolomics built a metabolomic network related to signifi cantly.modulated pathway. during the constipation alleviation, including bile acid secretion, steroid hormone biosy.thesis, gly.erophospholipid metabolism, and linoleic acid metabolism. Based on the phy.ochemistry. network pharmacology.predicted similar modulated pathway. and built a hub-target network including retinoid X receptor alpha(RXRA), cy.ochrome P450 1A1(Cy.1A1), cy.ochrome P450 1A2(Cy.1A2), and phospholipase A2-IVA(PLA2G4). Third, integrated networks were built to select the key.pathway. and targets, as well as the key.ingredients, including rhein, hesperetin, albifl orin, and magnolol from the TCM, which were corroborated by.molecular docking, in vitro enzy.e assay., and targeted metabolomics results. Finally. an integrated network was built to elucidate the multi-ingredient-multi-sy.ptom linkage during the treatment. In conclusion, the novel multiple-network analy.is revealed the complex “multi-component-multi-target-multi-pathway. mechanisms of CDD-2101 against constipation. Our work provides insight into the understanding of active compounds and pharmacological mechanisms, contributing to the development of natural medicines.

关键词： Constipation Mass spectrometry Medicine Metabolomics Network pharmacology

慢性后负荷增加对先天性左室流出道梗阻患者左室心肌功能的影响

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世界核心医学期刊文摘(心脏病学分册) 2007年第9期 32-33页

作者： lam y.-y. Kay. M.G. Li w. 杜媛 AdultCongenital Heart Unit Roy.l Brompton Hospital London United Kingdom

本研究观察了压力超负荷距离对先天性主动脉缩窄和主动脉瓣狭窄(AS)患者左室(LV)功能的影响。利用M型超声和组织多普勒成像(TDI)技术测定连续46例LV流出道梗阻患者(23例主动脉缩窄和23例AS)

关键词：患者 AS 主动脉缩窄主动脉狭窄先天性心脏病后负荷压力负荷收缩幅度收缩速度功能