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| 1 | Application of fiber Bragg grating based strain sensor in pipeline vortex-induced vibration measurement显示文摘The vortex-induced vibrations(VIV)is an important topic of study in many different scientific and engineering fields.While VIV can be of benefit in some cases,oftentimes,it is an undesirable phenomenon that can be quite dangerous.In particular for offshore pipelines,VIV can lead to fatiguing of the pipe structure and can cause disastrous consequences if left unchecked.A number of different methods have been applied to the measurement of VIV,especially for the elongated,thin cylindrical structures.The use of fiber optic fiber Bragg gratings(FBGs)in particular has gained popularity over the recent years due to their distinct properties.However,FBGs are also very fragile and are susceptible to failure when placed in harsh environments without protection.In this paper,56 FBGs encapsulated in stainless steel tubes were applied to the measurement of VIV in a28-m model pipeline under controlled and uncontrolled conditions.Tests show that the encapsulated sensors possessed good sensitivity as well as fatigue life(>80000 cycles).The measurements from FBGs were also high enough to allow frequency domain analysis of the pipeline VIV under the two conditions.The authors conclude that the encapsulated FBGs are a viable tool for the study of VIV in pipeline structures. | REN Liang JIA ZiGuang HO Michael Siu Chun YI TingHua LI HongNan | 2014 | Science China(Technological Sciences)2014,57,9: | 9 |
| 2 | Inhibitory effect of different Dendrobium species on LPS-induced inflammation in macrophages via suppression of MAPK pathways显示文摘Dendrobii Caulis(DC), named ‘Shihu' in Chinese, is a precious herb in traditional Chinese medicine. It is widely used to nourish stomach, enhance body fluid production, tonify 'Yin' and reduce heat. More than thirty Dendrobium species are used as folk medicine. Some compounds from DC exhibit inhibitory effects on macrophage inflammation. In the present study, we compared the anti-inflammatory effects among eight Dendrobium species. The results provided evidences to support Dendrobium as folk medicine, which exerted its medicinal function partially by its inhibitory effects on inflammation. To investigate the anti-inflammatory effect of Dendrobium species, mouse macrophage cell line RAW264.7 was activated by lipopolysaccharide. The nitric oxide(NO) level was measured using Griess reagent while the pro-inflammatory cytokines were tested by ELISA. The protein expressions of inducible NO synthase(iNOS), cyclooxygenase-2(COX-2) and mitogen-activated protein kinases(MAPKs) phosphorylation were evaluated by Western blotting analysis. Among the eight Dendrobium species, both water extracts of D. thyrsiflorum B.S.Williams(DTW) and D. chrysotoxum Lindl(DCHW) showed most significant inhibitory effects on NO production in a concentration-dependent manner. DTW also significantly reduced TNF-α, MCP-1, and IL-6 production. Further investigations showed that DTW suppressed iNOS and COX-2 expression as well as ERK and JNK phosphorylation, suggesting that the inhibitory effects of DTW on LPS-induced macrophage inflammation was through the suppression of MAPK pathways. In conclusion, D. thyrsiflorum B.S.Williams was demonstrated to have potential to be used as alternative or adjuvant therapy for inflammation. | ZENG Qiang Chun-Hay Ko Wing-Sum Siu LI Kai-Kai Chun-Wai Wong HAN Xiao-Qiang YANG Liu Clara Bik-San Lau HU Jiang-Miao Ping-Chung Leung | 2018 | Chinese Journal of Natural Medicines2018,16,7: | 4 |
| 3 | Functional Disabilities Profile of Chinese Elderly People with Alzheimer's Disease - A Validation Study on the Chinese Version of the Disability Assessment for Dementia显示文摘 | Cycbie C.M. Mok Andrew M.H. Siu W.C. Chan K.M. Yeung P.C. Pan Siu-wah Li | 2005 | 中国生物学文摘2005,19,11: | 3 |
| 4 | Hand-assisted D2 subtotal gastrectomy for carcinoma of stomach 显示文摘 | Chau CH Siu WT Li MK | 2002 | Surg Laparosc Endosc Percutan Tech2002,12,4: | 1 |
| 5 | Influence of a graphite shell on the thermal, magnetic and electromagnetic characteristics of Fe nanoparticles显示文摘 | Xianguo Liu Siu Wing Or Yuping Sun Weihuo Li Yizhu He Guohui Zhu Chuangui Jin Qun Yan Yaohui Lv Siu Lau Ho Shengsheng Zhao | 2013 | Journal of Alloys and Compounds2013,,: | 1 |
| 6 | Vitamin D Deficiency Is Associated with Depletion of Circulating Endothelial Progenitor Cells and Endothelial Dysfunction in Patients with Type 2 Diabetes显示文摘 | Yuen-Fung Yiu Yap-Hang Chan Kai-Hang Yiu Chung-Wah Siu Sheung-Wai Li Lai-Yung Wong Stephen W. L. Lee Sidney Tam Eric W. K. Wong Bernard M. Y. Cheung Hung-Fat Tse | 2011 | The Journal of Clinical Endocrinology & Metabolism2011,,5: | 1 |
| 7 | Complete recovery from acute encephalopathy of late-onset ornithine transcarbamylase deficiency in a 3-year-old boy显示文摘 | C. M. Mak T.-S. Siu C.-W. Lam G. C.-F. Chan G. W.-K. Poon K.-Y. Wong L. C.-K. Low N. L. Tang S. K. Li K.-Y. Lau N.-S. Kwong S. Tam | 2007 | Journal of Inherited Metabolic Disease2007,,6: | 1 |
| 8 | Biomimetic apatite-co ated alginate/chitosan microparticles as osteogenic protein carriers显示文摘 | Lee M Li W Siu RK | | 0,,30: | 1 |
| 9 | Energy harvesting using multilayer structure based on?0.71Pb(Mg1/3Nb2/3)O3–0.29PbTiO3 single crystal显示文摘 | Bo Ren Yaoyao Zhang Qinhui Zhang Xiaobing Li Wenning Di Xiangyong Zhao Haosu Luo Siu Wing Or | 2010 | Applied Physics A2010,,1: | 1 |
| 10 | Biomimetic apatite-coated alginate/chitosan microparticles as osteogenie protein carriers显示文摘 | Lee M Li W Siu R K | 2009 | Biomaterials2009,30,30: | 1 |
| 11 | Gasless laparoscopic excision of bleeding gastric polyp 显示文摘 | Leong HT Siu WT Li MK | 1996 | J Laparoendosc Surg1996,6,3: | 1 |
| 12 | Nell-l protein promotes bone formation in a sheep spinal fusion model显示文摘 | Siu RK Lu SS Li W | 2011 | Tissue Eng Part A2011,17,78: | 1 |
| 13 | MicroRNA-143 is downregulated in breast cancer and regulates DNA methyltransferases 3A in breast cancer cells显示文摘 | Enders K. O. Ng Rufina Li Vivian Y. Shin Jennifer M. Siu Edmond S. K. Ma Ava Kwong | 2014 | Tumor Biology2014,,3: | 1 |
| 14 | Hypermethylation of SOX2gene in hydatidiform mole and choriocarcinoma显示文摘 | Li AS Siu MK Zhang H | 2008 | Reprod Sci2008,15,7: | 1 |
| 15 | Nell-I enhances bone regeneration in a rat critical-sized femoral segmental defect model显示文摘 | Li W Zara IN Siu RK | 2011 | Plast Reconstr Surg2011,127,2: | 1 |
| 16 | Laparoscopic choledochoduodenostomy显示文摘 | C. N. Tang W. T. Siu J. P. Y. Ha M. K. W. Li | 2003 | Surgical Endoscopy2003,,10: | 1 |
| 17 | An actuarial analysis of long-term care demand in Hong Kong显示文摘 | Wai Sum Chan Siu Hang Li Pak Wing Fong | | 0,,04: | 1 |
| 18 | An improved parsimonious multivariate Markov chain model for credit risk显示文摘 | CHING W K SIU T LI L | 2009 | Journal of Credit Risk2009,5,1: | 1 |
| 19 | Allosteric inhibitors of Aktl and Akt2 : discovery of triazolo naphthyridines with potent and balanced activity显示文摘 | Li Y Liang J Siu T | 2009 | Bioorg Med Chem Lett2009,19,3: | 1 |
| 20 | Laparoscopy for malignancy: the role of handoscopy显示文摘 | Siu WT Li MK | 2004 | Semin Laparosc Surg2004,11,1: | 1 |