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107篇 您的检索式:作者名="Nadji"
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1Meshless Method for Analysis of Permeable Breakwaters in the Proximity of A Vertical Wall显示文摘In the present work, the improved version of the meshless singular boundary method(ISBM) is developed for analyzing the performance of bottom standing submerged permeable breakwaters in regular normally incident waves and in the proximity of a vertical wall. Both single and dual prismatic breakwaters of rectangular and trapezoidal forms are examined. The physical problem is cast in terms of the Laplace equation governing an irrotational flow and incompressible fluid motion with appropriate mixed type boundary conditions, and solved numerically using the ISBM. To model the permeability of the breakwaters fully absorbing boundary conditions are assumed. Numerical results are presented in terms of hydrodynamic quantities of the reflection coefficients. These are firstly validated against the results of a multi-domain boundary element method(BEM) developed independently for a previous study. The agreement between the results of the two methods is excellent. The coefficients of reflection are then computed and discussed for a variety of structural conditions including the breakwaters height, width, spacing, and absorbing permeability. Effects of the proximity of the vertical plane wall are also investigated. The breakwater's width is found to have only marginal effects compared with its height. Permeability tends to decrease the minimum reflections. These coefficients show periodic variations with the spacing relative to the wavelength. Trapezoidal breakwaters are found to be more cost-effective than the rectangular breakwaters. Dual breakwater systems are confirmed to perform much better than single structures.Nadji CHIOUKH Karim OUAZZANE Yal??n YüKSEL Benameur HAMOUDI Esin ?EVIK 2019China Ocean Engineering2019,33,2:6
2A Multi-Domain Boundary Element Method to Analyze the Reflection and Transmission of Oblique Waves From Double Porous Thin Walls显示文摘In the present paper, we examine the performance of an efficient type of wave-absorbing porous marine structure under the attack of regular oblique waves by using a Multi-Domain Boundary Element Method(MDBEM). The structure consists of two perforated vertical thin barriers creating what can be called a wave absorbing chamber system. The barriers are surface piercing, thereby eliminating wave overtopping. The problem of the interaction of obliquely incident linear waves upon a pair of perforated barriers is first formulated in the context of linear diffraction theory. The resulting boundary integral equation, which is matched with far-field solutions presented in terms of analytical series with unknown coefficients, as well as the appropriate boundary conditions at the free surface, seabed, and barriers, is then solved numerically using MDBEM. Dissipation of the wave energy due to the presence of the perforated barriers is represented by a simple yet effective relation in terms of the porosity parameter appropriate for thin perforated walls. The results are presented in terms of reflection and transmission coefficients. The effects of the incident wave angles, relative water depths, porosities, depths of the walls, and other major parameters of interest are explored.Yamina Bakhti Nadji Chioukh Benameur Hamoudi Mohamed Boukhari 2017Journal of Marine Science and Application2017,16,3:5
3Reflection and Transmission of Regular Waves from/Through Single and Double Perforated Thin Walls显示文摘In this paper, reflection and transmission coefficients of regular waves from/through perforated thin walls are investigated. Small scale laboratory tests have been performed in a wave flume firstly with single perforated thin Plexiglas plates of various porosities. The plate is placed perpendicular to the flume with the height from the flume bottom to the position above water surface. With this thin wall in the flume wave overtopping is prohibited and incident waves are able to transmit. The porosities of the walls are achieved by perforating the plates with circular holes.Model settings with double perforated walls parallel to each other forming so called chamber system, have been also examined. Several parameters have been used for correlating the laboratory tests' results. Experimental data are also compared with results from the numerical model by applying the multi-domain boundary element method(MDBEM)with linear wave theory. Wave energy dissipation due to the perforations of the thin wall has been represented by a simple yet effective porosity parameter in the model. The numerical model with the MDBEM has been further validated against the previously published data.Nadji CHIOUKH Esin CEVIK Yalcin YUKSEL 2017China Ocean Engineering2017,31,4:4
4Cytologic characteristics ofmen ingeal carcinomatosis: increased diagnostic accuracy using carci noembryonic antigenand epithelial membrane antigen immunoocy tochemistry显示文摘Jorda M Ganjei AP Nadji M 1998Arch Neurol1998,5,2:1
5Cathepsin D in host stromal ceils, but not in tumor ceils, is associated with aggressive behavior in node-negative breast cancer显示文摘Nadji M Fresno M Nassiri M 1996Hum Pathol1996,27,9:1
6Efficacy of radical hysterectomy as treatment for patients with small cell carcinoma of the cervix显示文摘Sevin BU Method MW Nadji M 1996Cancer1996,77,8:1
7Normal pulmonary veins anatomy is associated with better AF-free survival after cryoablation as compared to atypical anatomy with common left pulmonary vein显示文摘Kubala M Hermida J S Nadji G 0,,07:1
8Efficacy of radical hysterectomy as treatment for patients with small cell carcinoma of the cervix 显示文摘Sevin BU Method MW Nadji M 1996Cancer1996,77,8:1
9Dynamic traffic modeling for noise impact assessment of traffic strategies 显示文摘Can A chevalier E Nadji M 2010Acta Acustica United With Acustica2010,96,3:1
10Cytologic characteristics of meningeal carcinomatosis:increased diagnostic accuracy using carcinoembryonic antigen and epithelial membrane antigen immunocytochemistry显示文摘Jorda M Ganjei Azar P Nadji M 1998Arch Neurol1998,55,2:1
11Cytologic characteristics of meningeal carcinomatosis:increased diagnostic accuracy using carcinoembryonic antigen and epithelial membrane antigen immunocytochemistry显示文摘Jorda M Ganjei Azar P Nadji M 1998Arch Neurol1998,55,2:1
12Immunohistochemistry of estrogen and progesterone receptors reconsidered:experience with 5,993 breast cancers显示文摘Nadji M Gomez-Fernandez C Ganjei-Azar P 2005Am J Clin Pathol2005,123,1:1
13Cytologic characteristics of meningeal carcinomatosis:increased diagnostic accuracy using cacinoem bryo,ic antigen and epithelial membrane antigen immunocytochemistry显示文摘Jorda M Ganjci-Azar P Nadji M 1998Arch Neurol1998,55,:1
14Human papillomavirus is associated with breast cancer in the north part of Iran显示文摘Sigaroodi A Nadji SA Naghshvar F 2012Sci World J2012,,83:1
15A tissue fixative that protects macro-molecules(DNA,RNA,and protein)and histomorphology in clinical samples显示文摘 Nassiri M Nadji M 2003Lab Invest2003,83,10:1
16Efficacy of radical hysterectomy as treament for patients with small cell carcinoma of the cervix显示文摘Sevin BU Method MW Nadji M 1996Cancer1996,77,:1
17Cytologic characteristics of meningeal carcinomatosis:increased diagnostic accuracy using carcinoembryonic antiger and epithelial membrane antigen immunocytochemistry显示文摘Jorda M Ganjei-Azar P Nadji M 1998Arch Neurol1998,55,2:1
18Comparison of existind disease activity indices in the follow-up of patients with Heheet' s disease显示文摘Shahram F Khabbazi A Nadji A 2009Mod Rheumatol2009,19,5:1
19Relation- ship between lung cancer and human papillomavirus in north of lran, Mazandaran province显示文摘Nadji SA Mokhtari-Azad T Mahmoodi M 2007Cancer letters2007,248,1:1
20Cathepsin D in host stromal cells,but not in tumor cells,is associated with aggressive behavior in node-negative breast cancer显示文摘Nadji M Fresno M Nassiri M 1996Hum Pathol1996,27,9:1
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