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517篇 您的检索式:作者名="Gouda"
    题名 作者 年代 出处 被引量
1基于JKR粘结模型的蚯蚓粪基质离散元法参数标定显示文摘为确定不同含水率下蚯蚓粪基质的多种参数,提出了通过测定基质含水率,预测休止角,通过休止角合理推测其他参数的思路,并提出了一种散体休止角测定方法。以休止角作为参照,基于JKR粘结模型,使用离散元参数标定的方法,从与蚯蚓粪基质颗粒有关的10个参数中,筛选出颗粒间静摩擦因数、颗粒间滚动摩擦因数和JKR表面能3个对休止角影响显著的参数,建立了休止角与这3个显著参数之间的二次多项式回归模型。试验结果表明,该模型可以根据休止角预测蚯蚓粪基质参数,根据预测得到的参数建立离散元模型,休止角仿真结果与实际试验结果较为接近,差异分别为1.53%和0.22%。同时测定了不同含水率下蚯蚓粪基质的休止角,建立了休止角与含水率之间的关系模型。研究结果可为其他类似散体物料休止角的测定提供参考,并提供了一种通过测定易于测定的参数(如含水率)来推导其他难测参数的思路。罗帅 袁巧霞 GOUDA Shaban 杨龙元 2018农业机械学报2018,49,4:51
2海藻酸钠复合天然化学物质涂膜对鲜切莲藕保鲜效果的影响显示文摘利用响应面法优化鲜切莲藕复合涂膜保鲜剂。根据不同保鲜剂的功能特性,选择7种保鲜剂(L-半胱氨酸、柠檬酸、草酸、L-精氨酸、海藻酸纳、亚麻籽胶、壳聚糖),考察不同质量分数保鲜剂对鲜切莲藕色泽的影响。以此单因素试验结果为基础,采用Design-Expert.V8.0.6.1软件进行响应面试验方案设计。结果表明,所选7种保鲜剂均可显著(P<0.05)延缓鲜切莲藕表面褐变;鲜切莲藕复合涂膜保鲜剂最佳组合为:0.50%海藻酸钠+0.27%L-半胱氨酸+0.76%柠檬酸。在此条件下鲜切莲藕贮藏12 d后色差值为1.86,菌落总数为2.69×10^(5)CFU/g,与回归方程预测值相近。表明海藻酸钠复合L-半胱氨酸和柠檬酸涂膜处理可有效延缓鲜切莲藕表面褐变和微生物腐败,维持较好的鲜切莲藕商品品质。张春洁 Mohamed Hawali Bata Gouda 王俊豪 彭思佳 孔晓雪 张秋婷 罗海波 2021江苏农业学报2021,37,1:8
3NUMERICAL SIMULATION OF FORGING AND SUBSEQUENT HEAT TREATMENT OF A ROD BY A FINITE VOLUME METHOD显示文摘A method to simulate processes of forging and subsequent heat treatment of an axial symmetric rod is formulated in eulerian description and the feasibility is investigated. This method uses finite volume mushes for troching material deformation and an automatically refined facet surface to accurately trace the free surface of the deforming material.In the method,the deforming work piece flows through fixed finite volume meshes using eulerian formulation to describe the conservation laws,Fixed finite volume meshing is particularly suitable for large three-dimensional deformation such as forging because remeshing techniques are not required, which are commonly considered to be the main bottelencek in the ssimulations of large defromation by using the finite element method,By means of this finite volume method, an approach has been developed in the framework of 'metallo-thermo-mechanics' to simulate metallic structure, temperature and stress/strain coupled in the heat treatment process.In a first step of simulation, the heat treatment solver is limited in small deformation hypothesis,and un- coupled with forging. The material is considered as elastic-plastic and takes into account of strain, strain rate and temperature effects on the yield stress.Heat generation due to deformation,heat con- duction and thermal stress are considered.Temperature - dependent phase transformation,stress-in- duced phase transformation,latent heat,transformation stress and strain are included.These ap- proaches are implemented into the commerical commercial computer program MSC/SuperForge and a verification example with experimental date is given as comparison.P. R. Ding D. Y. Ju T. Lnouc and E. de Vries( 1) MSC Japan Ltd., Osaka,Japan 2) Saitama Institute of Technology,Saitama,Japan 3) Kyoto Universily, Kyoto, Japan 4) MacNeal - Schwendler (E. D. C. ) B. V., Gouda, The Netherlands) 2000Acta Metallurgica Sinica(English Letters)2000,13,1:6
4MTP genetic variants associated with non-alcoholic fatty liver in metabolic syndrome patients显示文摘This study was performed for investigation the relationship between variants of MTP gene polymorphism and the development of NAFLD in patients with and without MS.The study was included 174 NAFLD patients(106 with MS and 68 without MS),and 141 healthy control subjects.The 493 G/T polymorphism of MTP gene was evaluated by PCR-RFLP method.The frequency of MTP TT genotype and T allele were significantly higher in NAFLD patients when compared to healthy controls.Moreover,a significant association in MTP gene polymorphism was observed in NAFLD patients with MS compared to NAFLD patients without MS and controls.Our study suggested that MTP 493 G/T gene polymorphism may act as susceptibility biomarker for NAFLD and MS.Weaam Gouda Esmat Ashour Yehia Shaker Wafaa Ezzat 2017Genes & Diseases2017,4,4:4
5Sequence Stratigraphy and Rudist Facies Development of the Upper Barremian-Lower Cenomanian Platform, Northern Sinai, Egypt显示文摘The Lower Cretaceous sections in northern Sinai are composed of the Risan Aneiza(upper Barremian-middle Albian) and the Halal(middle Albian-lower Cenomanian) formations. The facies reflect subtle paleobathymetry from inner to outer ramp facies. The inner ramp facies are peritidal, protected to open marine lagoons, shoals and rudist biostrome facies. The inner ramp facies grade northward into outer ramp deposits. The upper Barremian-lower Cenomanian succession is subdivided into nine depositional sequences correlated with those recognized in the neighbouring Tethyan areas. These sequences are subdivided into 19 medium-scale sequences based on the facies evolution, the recorded hardgrounds and flooding surfaces, interpreted as the result of eustatic sea level changes and local tectonic activities of the early Syrian Arc rifting stage. Each sequence contains a lower retrogradational parasequence set that constituted the transgressive systems tracts and an upper progradational parasequence set that formed the highstand systems tracts. Nine rudist levels are recorded in the upper Barremian through lower Cenomanian succession at Gabal Raghawi. At Gabal Yelleg two rudist levels are found in the Albian. The rudist levels are associated with the highstand systems tract deposits because of the suitability of the trophic conditions in the rudist-dominated ramp.Yasser SALAMA Michael GRAMMER Shaban SABER Soheir EL-SHAZLY Gouda ABDEL-GAWAD 2018Acta Geologica Sinica(English Edition)2018,92,1:3
6Secure Group Communications Using Key Graphs显示文摘Wong C Gouda M Lam S 0,,:2
7Effect of Bi Additions on Structure and Properties of Sn-9Zn-lAg Lead-Free Solder Alloys显示文摘El Said Gouda Heba Abdel Aziz 2012材料科学与工程(中英文B版)2012,2,6:2
8The Epidemiology of Cancer Pain显示文摘Leonidas C. Goudas Rina Bloch Maria Gialeli-Goudas Joseph Lau Daniel B. Carr 2005Cancer Investigation2005,,2:2
9Column leaching of lanthanides from Abu Tartur phosphate ore with kinetic study显示文摘The dynamic leaching of lanthanides from a west desert phosphate ore, Egypt (Abu Tartur) by hydrochloric acid, nitric acid and sulfuric acid solutions was investigated in this study as a function of acid concentration, flow rate and the presence of some additives such as boric acid. Also the kinetics of leaching of lanthanides was investigated as a function of temperature. It was found that the leaching process could be described by a shrinking-core model, with activation energy about 5.9, 13.8 and 21.9 kJ/M for leaching by HCl, HNO3 and H2SO4, respectively. Based on the experimental results, an empirical equation related to the rate constant of lanthanides leaching to leaching temperature was established for the purpose of process design.A.T. Kandil M.M. Aly E.M. Moussa A.M. Kamel M.M. Gouda M.N. Kouraim 2010Journal of Rare Earths2010,28,4:2
10Fractalkine-mediated endothelial cell injuryby NK Cells显示文摘Yoneda O Imai T Gouda S 2000J Immunol2000,1164,8:1
11The epidemiol- ogyn of cancer pain显示文摘Goudas LC Bloch R Gialeli-Goudas M 2005Cancer Invest2005,23,2:1
12Enhancement of operational stability of an enzyme biosensor for glucose and sucrose using protein based stabilizing agents显示文摘Gouda M D Kumar M A Thakur M S 2002Biosensors and Bioelectronics2002,,17:1
13Predictors of severity and survival in acute pancreatitis:validation of the efficacy of eariy waming scores显示文摘Garcea G Gouda M Hehbers C 2008pancreas2008,37,30:1
14Single cell oil pro- duction by Goldoni DG using agro-industrial wastes 显示文摘Gouda M K Omar S Hi Aouad L M 2008World J Microbial Biotech2008,,24:1
15Metallothionein Induction Reduces Caspase-3 Activity and Tnfα Levels with Preservation of Cognitive Function and Intact Hippocampal Neurons in Carmustine-Treated Rats显示文摘Gouda K. Helal Abdulaziz M. Aleisa Omayma K. Helal Salim S. Al-Rejaie Abdulaziz A. Al-Yahya Abdulhakeem A. Al-Majed Othman A. Al-Shabanah 2009Oxidative Medicine and Cellular Longevity2009,,1:1
16Secure group communication using key graphs 显示文摘Wong C K Gouda M Simon L S 2000IEEE/ACM Transactions on Networking2000,8,1:1
17A comparison of polypropylene surface treatment by filamentary, homogeneous and glow discharge in helium at atmospheric pressure 显示文摘Massines F Gouda G 1998Journal of Physics D: Applied Physics1998,31,24:1
18The epidemiology of can- cer pain 显示文摘Goudas LC Bioch R Gialeli-Qoudas M 2005Cancer Invest2005,25,2:1
19Fractalkine-mediated endothelial cell injury by NK Cells显示文摘Yoneda O Imai T Gouda S 2000J Immunol2000,164,8:1
20Secure group communications using key graphs显示文摘WONG CK GOUDA MG LAM SS 2000IEEE/ACM Trans Networking2000,2,8:1
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