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74篇 您的检索式:作者名="Kin Li"
    题名 作者 年代 出处 被引量
1Experimental study on mechanical behaviors of pseudo-ductile cementitious composites under biaxial compression显示文摘Experimental investigation was conducted to characterize the responses of pseudo-ductile cementitious composites (PDCCs) when subjected to uniaxial and biaxial compression.The PDCCs is a class of fiber reinforced cementitious composites with ultra-high ductility by using a low volume fraction (2%) of polyvinyl alcohol (PVA) fiber.Two different strength grades of PDCC were examined with cubic specimen size of 100 mm in the tests.The specimens were loaded with a servo-hydraulic jack at different stress ratios.The principle stresses and strains of the specimens were recorded,and the failure modes with various stress states were examined.The test results indicated that the ultimate strength of PDCCs increased due to the lateral confinement in the other principal stress direction,and the maximum ultimate strength occurred at the biaxial stress ratio of 0.25,which was very different from common concrete material.For the PDCC specimens,the biaxial strength may be lower than the uniaxial strength when subjected to biaxial compression with the stress ratio of 1.0,and the failure mode showed a shear-type failure because of the bridging effect of fibers.Finally,a failure criterion was proposed for PDCCs under biaxial compression.ZHOU JiaJia PAN JinLong LEUNG Christopher Kin Ying LI ZongJin 2013Science China(Technological Sciences)2013,56,4:8
2Risk factors of positive surgical margin and biochemical recurrence of patients treated with radical prostatectomy: a single-center 10-year report显示文摘许多研究显示出的背景那积极外科的边缘和生物化学的复发能影响病人的生活,前列腺癌症与激进的前列腺切除术对待。与有前列腺的越来越多的病人一起,癌症出现了在最近在中国的 20 年,调查积极外科的边缘的风险是必要的,生物化学的复发,和他们病人的预后上的可能的影响与基一起对待前列腺切除术。在这研究,我们与前列腺癌症分析了病人的特征在澳门区域经历了激进的前列腺切除术并且试着发现有从有前列腺癌症的 2000~2009,149 个病人的这些 patients.Methods 的预后的积极外科的边缘和生物化学的复发和他们的关系的任何风险因素收到了激进的前列腺切除术并且是的人,跟随了 up.Among 这些病人们, 111 收到的 retropubic 激进分子前列腺切除术, 38 收到的 laparoscopic 激进分子 prostatectomie 在每后续任何抱怨的一个详细记录,浆液前列腺特定的抗原(PSA ) ,完整的生物化学的测试和 uroflowmetry 是 acquired.Results 平均年龄(69.0 景汯??LI Kin LI Hong YANG Yong Ian Lap-hong Pun Wai-hong Ho Son-fat 2011Chinese Medical Journal2011,,7:7
3Photoelectrochemical degradation of Methylene Blue with β-PbO_2 electrodes driven by visible light irradiation显示文摘β-PbO2 electrodes were prepared by electro-deposition and characterized by scanning electron microscopy,X-ray diffraction,X-ray photoelectron spectroscopy,and linear sweep voltammetry.We confirmed pure β-PbO2 crystals were on the electrode and it had a high oxygen evolution potential.The photoactivity and photoelectrochemical(PEC) properties of the β-PbO2 electrode were investigated under visible light irradiation(λ > 420 nm) for the decolorization of Methylene Blue.Pseudo first-order kinetics parameter(Kapp) for dye decolorization using the β-PbO2 electrode achieved 6.71×10-4 min-1 under visible light irradiation,which indicated its excellent visible light-induced photoactivity.The Kapp of the PEC process was as much as 1.41×10-3 min-1 and was 1.71 times that of visible light irradiation or electrolysis even in the presence of the β-PbO2 electrode.A significant synergetic effect was observed in the PEC system.We also employed TiO2 modified β-PbO2 electrodes in this test,which revealed that the TiO2 immobilized on the β-PbO2 electrode inhibited the visible light-induced PEC efficiency despite the amount of TiO2 used for electrode preparation.The β-PbO2 electrode was also superior to the dimensionally stable anode(Ti/Ru0.3Ti0.7O2) in visible light-induced photoactivity and PEC efficiency.Guoting Li HoYin Yip Kin Hang Wong Chun Hu Jiuhui Qu Po Keung Wong 2011Journal of Environmental Sciences2011,23,6:4
4Apoptotic extracellular vesicles are metabolized regulators nurturing the skin and hair显示文摘Over 300 billion of cells die every day in the human body,producing a large number of endogenous apoptotic extracellular vesicles(apoEVs).Also,allogenic stem cell transplantation,a commonly used therapeutic approach in current clinical practice,generates exogenous apoEVs.It is well known that phagocytic cells engulf and digest apoEVs to maintain the body’s homeostasis.In this study,we show that a fraction of exogenous apoEVs is metabolized in the integumentary skin and hair follicles.Mechanistically,apoEVs activate the Wnt/β-catenin pathway to facilitate their metabolism in a wave-like pattern.The migration of apoEVs is enhanced by treadmill exercise and inhibited by tail suspension,which is associated with the mechanical force-regulated expression of DKK1 in circulation.Furthermore,we show that exogenous apoEVs promote wound healing and hair growth via activation of Wnt/β-catenin pathway in skin and hair follicle mesenchymal stem cells.This study reveals a previously unrecognized metabolic pathway of apoEVs and opens a new avenue for exploring apoEV-based therapy for skin and hair disorders.Lan Ma Chider Chen Dawei Liu Zhiqing Huang Jiaqi Li Haixiang Liu Ryan Tsz Kin Kwok Benzhong Tang Bingdong Sui Xiao Zhang Jianxia Tang Xueli Mao Weiying Huang Songtao Shi Xiaoxing Kou 2023Bioactive Materials2023,,1:3
5Clinical results of radical prostatectomy for patients with prostate cancer in Macao显示文摘背景:前列腺癌症的发生在最近的十年一直在增加。在一年 2005,前列腺癌症在澳门在男性成为了第二很普通的癌症。这份报告的目的是考察并且总结在澳门特别行政区(SAR ) 经历激进的前列腺切除术的 54 个病人的临床的特征和预后,中国。方法:从 2000 年 11 月到 2006 年 11 月,制动火箭阴毛的激进的前列腺切除术为前列腺癌症的治疗在 54 种情况中被执行。病人的吝啬的年龄是 69.8 年(从 54 ~ 79 的范围) 。外科手术前的前列腺 specific 抗原(PSA ) 水平,手术后的病理学的阶段和格利森是分数,操作持续时间, intraoperative 流血和 intraoperative,手术后的复杂并发症被报导。后续持续时间是到有 2.1 年的一个平均数的 6.25 年的 3 个月。包括 PSA 改变,生物化学的复发,本地复发,远转移和死亡的手术后的参数被观察。结果:大多数在我们的学习的病人作为局部性的前列腺癌症被诊断。病人的外科手术前的浆液 PSA 是 0-4.0 ng/ml (16.7%) , 4.0-10.0 ng/ml (51.8%) , 10.1-20.0 ng/ml (24.1%) 并且在 20.0 ng/ml (7.4%) 上面。TNM 阶段 T1a+T1b 包括了 7.6% 病人,阶段 T2a+T2b 包括了 20.3% ,阶段 T2c 38.9% ,阶段 T3a 20.3% 并且在 T3a 上仅仅 12.9% 。有有 2-4 的格利森分数的 9.5% 案例, 41.5% 与 5-6 的分数, 30.2% 与有 8 的分数的 7 和 18.8% 的分数 - 10。平均起作用的持续时间是 216 分钟,流血的平均 intraoperative 是 760 ml。Intraoperative 复杂并发症包括了一大出血(1.9%) ,一直肠的损害(1.9%) 和一闭塞物神经损害(1.9%) 。早手术后的复杂并发症由尿失禁组成了( 14 个盒子,25.9%),膀胱颈苛评( 5 个盒子,9.3%),尖锐尿保留( 4 个盒子,7.4%),骨盆的流出( 2 个盒子,3.8%),囊状淋巴管瘤( 1 个盒子,1.9%)并且膀胱直肠管(仅仅 1 个盒子,1.9%)。为晚手术后的复杂并发症,全部的不能自制或严重不能自制发生在 6 种情况(11.1%) 中,在 2 种情况(3.8%) 中的冲动不能自制和在 8 种情况(14.8%) 中的膀胱颈挛缩。全部的手术后的再发率是 14.8% 。仅仅生物化学的复发的 5 个盒子被注意(9.3%) 。与提高的 PSA 联系的本地复发的一个盒子(1.9%) 被发现。有有提高的 PSA (3.8%) 的远转移的 2 个盒子。结论:激进的前列腺切除术是为在澳门的局部性的前列腺癌症的治疗的一个安全、有效的方法。Ho Son-fat Lao Hio-fai Li Kin Tse Men-kin 2008Chinese Medical Journal2008,121,4:3
6Experimental study on mechanical behavior of high performance concrete under multi-axial compressive stress显示文摘Experimental investigation was conducted to characterize the responses of high performance concrete(HPC) subjected to multiaxial compressive stresses. The HPC specimens were prepared with three different mix proportions, which corresponds to three different uniaxial compressive strengths. The cubic specimens with size of 100 mm for each edge were tested with servo-hydraulic actuators at different stress ratios. The principal stresses and strains of the specimens were recorded, and the failure of the cubic specimens under various stress states was examined. The experimental results indicated that the stress states and stress ratios had significant influence on the strength and deformation of HPC under biaxial and triaxial compression, especially under triaxial compression. Failure criteria were proposed for the HPC specimens under biaxial and triaxial compressive loading. The test results provided a valuable reference for obtaining multi-axial constitutive law for HPC.ZHOU Jia Jia PAN Jin Long LEUNG Christopher Kin Ying LI Zong Jin 2014Science China(Technological Sciences)2014,57,12:3
7One New Diterpene Glucoside from the Roots of Rhododendron molle显示文摘One new grayanane diterpene glucoside, rhodomoside A 1 was isolated from the roots of Rhododendron molle G. Don (Ericaceae). Its structure was elucidated on the basis of spectral analysis.Guan Hu BAO1, Li Quan WANG1, Kin Fai CHENG2, Guo Wei QIN1* 1Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031 2Deprtment of Chemistry, the University of Hong Kong, Hong Kong 2002Chinese Chemical Letters2002,13,10:3
8Outcome of nephrostomy balloon dilation for vesicourethral anastomotic strictures following radical prostatectomy: a retrospective study显示文摘为开发了跟随激进的前列腺切除术的 vesicourethral anastomotic 苛评(管) 的病人评估 nephrostomy 汽球膨胀(NBD ) 的功效。NBD 在开发了管后面的激进的前列腺切除术的病人被执行。生活(QoL ) 的质量,国际前列腺症状分数(IPSS ) 和最大的尿流动率(Qmax ) 被评估。463 个前列腺癌症病人经历了激进的 retropubic 前列腺切除术(RRP ) ,并且 86 经历了 laparoscopic 激进分子前列腺切除术(LRP ) 。大多数病人(90.3%) 有 T2 或 T3 前列腺癌症和 ≤ 的一个病理学的格利森分数;7。45 (8.2%) 并且四(4.7%) 病人们分别地由于基或 LRP 开发了管。四十(89%) 病人们经历了 NBD,包括重复膨胀的三个盒子。中部的 Qmax 是 4 ml s −1(interquartile 范围(IQR ) , 2.3-5.6 ) 在膨胀前并且改善了到 16 ml s −1(IQR, 15-19 ) 并且 19 ml s −1(IQR, 18-21 ) 在 1 月、 12 月的后续,分别地(P <0.01 ) 。十五(37.5%) 病人们在膨胀以前有尿不能自制,而仅仅三(7.5%) 病人们有不能自制 12 月后面的膨胀(P <0.01 ) 。中部的 IPSS 分数从 19 改善了( IQR , 17-24 )在到 7 的膨胀前( IQR , 6-8 )在 12 月后面的膨胀,和 QoL , 20 从 5 改善了( IQR , 4-6 )在到 2 的膨胀前( IQR , 2-3 )在 12 月后面的膨胀( P < ;0.01 在两个) 。管发生在跟随激进的前列腺切除术的病人的一个小却重要的比例。NBD 为管提供有效疗法。Chong-Yu Zhang Yu Zhur Kin Li Laphong Ian Sonfat HOe Waihong Pun Hiofai Lao Vitalino Carvalho Ding-Yi Liu Zhou-Jun Shen 2014Asian Journal of Andrology2014,16,1:2
9Tension–tension fatigue behavior of unidirectional single-walled carbon nanotube reinforced epoxy composite显示文摘Yu Ren Feng Li Hui-Ming Cheng Kin Liao 2003Carbon2003,,11:1
10Static-Output-Feedback Based Robust Fuzzy Wheelbase Preview Control for Uncertain Active Suspensions With Time Delay and Finite Frequency Constraint显示文摘This paper proposes a static-output-feedback based robust fuzzy wheelbase preview control algorithm for uncertain active suspensions with time delay and finite frequency constraint.Firstly,a Takagi-Sugeno(T-S)fuzzy augmented model is established to formulate the half-car active suspension system with consideration of time delay,sprung mass variation and wheelbase preview information.Secondly,in view of the resonation between human’s organs and vertical vibrations in the frequency range of 4–8 Hz,a finite frequency control criterion in terms of H∞norm is developed to improve ride comfort.Meanwhile,other mechanical constraints are also considered and satisfied via generalized H2 norm.Thirdly,in order to maintain the feasibility of the controller despite of some state variables are not online-measured,a two stage approach is adopted to derive a static output feedback controller.Finally,numerical simulation results illustrate the excellent performance of the proposed controller.Wenfeng Li Zhengchao Xie Jing Zhao Pak Kin Wong Hui Wang Xiaowei Wang 2021IEEE/CAA Journal of Automatica Sinica2021,8,3:1
11Preparation and characterization of a nano apatite/polyamide bioactive composite显示文摘Wei Jie Li Yubao Lau Kin Tak 2007Composites Part B:Eng2007,38,:1
12Recommendation Based on Rational Inferences in Collaborative Filtering 显示文摘YANG Jin-min KIN FUN LI 2009KnowledgeBased Systems2009,22,1:1
13Targeting of DICE1 tumor suppressor by Epstein–Barr virus‐encoded miR‐BART3* microRNA in nasopharyngeal carcinoma显示文摘Ting Lei Kit‐San Yuen Rui Xu Sai Wah Tsao Honglin Chen Mengfeng Li Kin‐Hang Kok Dong‐Yan Jin 2013Int J Cancer2013,,1:1
14Palmprint Feature Extraction Using 2-D Gabor filters 显示文摘Kong Wai Kin Zhang David Li Wen Xin 2003Pattern Reeogniton2003,36,10:1
15Characterization of silver-containing pitchbased activated carbon fibers 显示文摘Ryu S K Kin S Y Li Z J 1999J Colloid Interface Sci1999,220,1:1
16Improved biological performance of Ti implants due to surface modification by micro-arc oxidation显示文摘 Kong YM Kin HW 2004Biomaterials2004,25,14:1
17Inhibition of vascular endothelial growth factor-induced angiogenesis suppresses tumour growth in vivo显示文摘Kin KJ Li B Winer J 1993Nature1993,362,:1
18Sampled-Data Asynchronous Fuzzy Output Feedback Control for Active Suspension Systems in Restricted Frequency Domain显示文摘This paper proposes a novel sampled-data asynchronous fuzzy output feedback control approach for active suspension systems in restricted frequency domain.In order to better investigate uncertain suspension dynamics,the sampleddata Takagi-Sugeno(T-S)fuzzy half-car active suspension(HCAS)system is considered,which is further modelled as a continuous system with an input delay.Firstly,considering that the fuzzy system and the fuzzy controller cannot share the identical premises due to the existence of input delay,a reconstructed method is employed to synchronize the time scales of membership functions between the fuzzy controller and the fuzzy system.Secondly,since external disturbances often belong to a restricted frequency range,a finite frequency control criterion is presented for control synthesis to reduce conservatism.Thirdly,given a full information of state variables is hardly available in practical suspension systems,a two-stage method is proposed to calculate the static output feedback control gains.Moreover,an iterative algorithm is proposed to compute the optimum solution.Finally,numerical simulations verify the effectiveness of the proposed controllers.Wenfeng Li Zhengchao Xie Yucong Cao Pak Kin Wong Jing Zhao 2021IEEE/CAA Journal of Automatica Sinica2021,8,5:1
19Combined fouling of nanofiltration membranes: mechanisms and effect of organic matter 显示文摘Contreras A E Kin A Li Q L 2009Journal of Membrane Science2009,327,12:1
20I mpact of leptin receptor gene variants on risk of non‐alcoholic fatty liver disease and its interaction with adiponutrin gene显示文摘Shamsul Mohd Zain Zahurin Mohamed Sanjiv Mahadeva Phaik‐Leng Cheah Sanjay Rampal Kin‐Fah Chin Anis Shafina Mahfudz Roma Choudhury Basu Hwa‐Li Tan Rosmawati Mohamed 2013J Gastroenterol Hepatol2013,,5:1
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