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| 1 | THREE-DIMENSIONAL NUMERICAL MODELINGOF COHESIVE SEDIMENT TRANSPORT BY TIDAL CURRENTIN PEARL RIVER ESTUARV显示文摘A three-dimensional numerical model of suspended sediment transport taking into account the effects of cohesiveness between sediments is presented. An efficient operator splitting scheme is employed to solve the equations of mass conservation, momentum and suspended sediment transport. The splitting method partitions a time step into three fractional time steps according to physical phenomena. In the first step, advection and Coriolis force are solved by Eulerian-Lagrangian method (ELM). Horizontal diffusion is approximated by implicit finite element method (FEM) for each horizontal layer in the second step. In the last step, vertical diffusion and pressure gradient are discretized by implicit finite difference method (FDM) for each nodal column. The continuity equation is solved by implicit FEM within an entire time step. The sigma coordinate system for vertical columns and nine-node isoparameteric finite elements for horizontal planes are employed in the model. Empirical functions specifically developed for cohesive sediments in China have been incorporated into the model. The model has been applied to investigate the suspended sediment concentration and seabed evolution in the Pearl River Estuary (PRE) in China. Computed results show that the distribution of sediment concentration and seabed evolution is in agreement with field measurements. In addition, the effect of the size of time step on result is discussed. The computed result shows that larger time steps can be used in this model for saving computation time without losing much accuracy. | Yong CHEN1, Onyx W.H. WAI2, Y. S. Li3 and Qimiao LU4 (l 2,3 Department of Civil and Structural Engineering, The Hong Kong Polytechnic University. Hung Hom, Kowloon, Hong Kong 4,Department of Civil Engineering, Daltech, Dalhousie University, Halifax, Can | 1999 | International Journal of Sediment Research1999，14，2： | 4 |
| 2 | Establishing minimum clinically important difference values for the Patient-Reported Outcomes Measurement Information System Physical Function, hip disability and osteoarthritis outcome score for joint reconstruction, and knee injury and osteoarthritis out显示文摘AIM To establish minimum clinically important difference(MCID) for measurements in an orthopaedic patient population with joint disorders.METHODS Adult patients aged 18 years and older seeking care for joint conditions at an orthopaedic clinic took the Patient-Reported Outcomes Measurement Information System Physical Function(PROMIS~? PF) computerized adaptive test(CAT), hip disability and osteoarthritis outcome score for joint reconstruction(HOOS JR), and the knee injury and osteoarthritis outcome score for joint reconstruction(KOOS JR) from February 2014 to April 2017. MCIDs were calculated using anchorbased and distribution-based methods. Patient reports of meaningful change in function since their first clinic encounter were used as an anchor.RESULTS There were 2226 patients who participated with a mean age of 61.16(SD = 12.84) years, 41.6% male, and 89.7% Caucasian. Mean change ranged from 7.29 to 8.41 for the PROMIS~? PF CAT, from 14.81 to 19.68 for the HOOS JR, and from 14.51 to 18.85 for the KOOS JR. ROC cut-offs ranged from 1.97-8.18 for the PF CAT, 6.33-43.36 for the HOOS JR, and 2.21-8.16 for the KOOS JR. Distribution-based methods estimated MCID values ranging from 2.45 to 21.55 for the PROMIS~? PF CAT; from 3.90 to 43.61 for the HOOS JR, and from 3.98 to 40.67 for the KOOS JR. The median MCID value in the range was similar to the mean change score for each measure and was 7.9 for the PF CAT, 18.0 for the HOOS JR, and 15.1 for the KOOS JR.CONCLUSION This is the first comprehensive study providing a wide range of MCIDs for the PROMIS? PF, HOOS JR, and KOOS JR in orthopaedic patients with joint ailments. | Man Hung Jerry Bounsanga Maren W Voss Charles L Saltzman | 2018 | World Journal of Orthopedics2018，9，3： | 3 |
| 3 | Green tea polyphenols as an anti-oxidant and anti-inflammatory agent for cardiovascular protection 显示文摘 | TIPOE G L LEUNG T M HUNG M W | 2007 | Cardiovasc Hematol Disord Drug Targets2007，7，2： | 1 |
| 4 | Immunohistochemistry study of human vestibular nerve schwannoma differentiation显示文摘 | ColtonJ Fisher L | 2002 | Glia2002，38，4： | 1 |
| 5 | A Novel Multi-objective Programming Approach Dealing with Qualitative and Quantitative Objectives for Environmental Management显示文摘 | Hung M L Yang W F Ma H W | 2006 | Ecological Economics2006，，56： | 1 |
| 6 | Enhanced electron injection in organic electroluminescence devices using an Al/LiF electrode 显示文摘 | Hung L S Tang C W Mason M G | 1997 | Appl Phys Lett1997，70，： | 1 |
| 7 | 2a4Th scavenging and its relationship to acid polysaccharide abundance in the Gulf of Mexico显示文摘 | GUO L HUNG C C SANTSCHI P H | 2002 | Marine Chemistry2002，78，23： | 1 |
| 8 | Antioxidant capacity and lipophilic content of seaweeds collected from the Qingdao coastline显示文摘 | Hung H L Wang B G | 2004 | J Agric Food Chem2004，52，16： | 1 |
| 9 | On the J-divergence of intuitionistic fuzzy sets with its application to pattern recognition显示文摘 | Hung W L Yang M S | | 0，，06： | 1 |
| 10 | Automatic phase shift method for islanding detection of grid connected photovoltaie inverters显示文摘 | Hung G K Chang C C Chen C L | | 0，，01： | 1 |
| 11 | Regulation of ubiquitination?mediated protein degradation by survival kinases in cancer显示文摘 | Yamaguchi H Hsu]L Hung Me | 2012 | Front Oncol2012，2，： | 1 |
| 12 | Investor protection and corporate governance: Evidence from worldwide CEO turnover 显示文摘 | Defond M L Hung M | 2004 | Journal of Accounting Research2004，42，2： | 1 |
| 13 | Regulation of TH2 responses by the pulmonary Clara cell secretory 10-kd protein显示文摘 | HUNG C H CHEN L C ZHANG Z | 2004 | J Allergy Clin Immunol2004，114，： | 1 |
| 14 | Dissolved and particulate organic carbon in the southern East China Sea显示文摘 | HUNG J J LIN P L LIU K K | 2000 | Continental Shelf Re search2000，20，： | 1 |
| 15 | Biogeochemical controls on distributions ang fluxes of dissolved and particulate organic carbon in the Northern South China Sea 显示文摘 | HUNG J J WANG S M CHEN Y L | 2007 | Deep-Sea Research II2007，54，： | 1 |
| 16 | Design of robust active queue management controllers for a class of TCP communication networks显示文摘 | Chen C K Hung Y C Liao T L | 2007 | Information Sciences2007，177，19： | 1 |
| 17 | Cigarette smoking acutely increases platelet thrombus formation in patients with coronary artery disease taking aspirin显示文摘 | Lam JY Lacoste L | 1995 | Circulation1995，92，： | 1 |
| 18 | Linear analysis of a coaxialwaveguide gyrotron traveling wave tube显示文摘 | Hung C L | 2006 | Phys Plasmas2006，13，03： | 1 |
| 19 | Enhanced electron injection in organic electroluminescence devices using an Al/LiF electrode显示文摘 | HUNG L S TANG C W MASON M G | 1997 | Appl Phys Lett1997，70，2： | 1 |
| 20 | In situ detection of reovirus in formalinfixed paraffin-embedded chicken tissues using a dixgoxigenin-labeled cDNA probe显示文摘 | Hung J L Joseph J G | 1997 | Avian Diseases1997，41，： | 1 |
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