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您的检索式：作者名="Hosseininia"
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| 1 | Discrete element modeling of inherently anisotropic granular assemblies with polygonal particles显示文摘In the present article, we study the effect of inherent anisotropy, i.e., initial bedding angle of particles and associated voids on macroscopic mechanical behavior of granular materials, by numerical simulation of several biaxial compression tests using the discrete element method (DEM). Particle shape is considered to be irregular convex-polygonal. The effect of inherent anisotropy is investigated by following the evolution of mobilized shear strength and volume change during loading. As experimental tests have already shown, numerical simulations also indicate that initial anisotropic condition has a great influence on the strength and deformational behavior of granular assemblies. Comparison of simulations with tests using oval particles, shows that angularity influences both the mobilized shear strength and the volume change regime, which originates from the interlocking resistance between particles. | Ehsan Seyedi Hosseininia | 2012 | Particuology2012，10，5： | 12 |
| 2 | Effect of particle breakage on the behavior of simulated angular particle assemblies显示文摘Many attempts have been made to find various relationships for different parameters and some kinds of constitutive models for studying the behavior of particulate media. All these models are based on concepts of continuous media. Using a numerical method such as discrete element method, one can figure out what is happening through a discontinuous media where soil particles play the main role in introducing the shear strength and deformation characteristics. The behavior of the media with breakable particles is studied in this paper and compared with that of the assembly with non-breakable particles. In this paper, the hyperbolic elastic model is investigated for the assembly of polygon shaped particles in two different test series. In addition, evolution of different macro parameters of the assembly such as volume strain, angle of friction, angle of dilatancy and elastic modulus is studied during the simulation tests both for non-breakable and breakable soil particles. At the end, a parametric study is performed on the effect of strength of particle breakage on the assembly behavior. | E. Seyedi Hosseininia A.A. Mirghasemi | 2007 | China Particuology2007，5，5： | 9 |
| 3 | Stress-force-fabric relationship for planar granular materials显示文摘 | Seyedi Hosseininia E | 2013 | Géotechnique2013，63，10： | 1 |
| 4 | Investigating the micromechanical evolutions within inherently anisotropic granular materials using discrete element method显示文摘 | Ehsan Seyedi Hosseininia | 2012 | Granular Matter2012，，4： | 1 |
| 5 | Drought vulnerability assessment: The case of wheat farmers in Western Iran显示文摘 | Kiumars Zarafshani Lida Sharafi Hossein Azadi Gholamhossein Hosseininia Philippe De Maeyer Frank Witlox | 2012 | Global and Planetary Change2012，，： | 1 |
| 6 | Stress-force-fabric relationship for planar granular materials 显示文摘 | HOSSEININIA E S | 2013 | Geotechnique2013，63，10： | 1 |
| 7 | Down-regulation of Halr1 during induced differentiation of embryonal carcinoma P19 cells显示文摘Maintenance of pluripotency depends to diverse regulatory factors.Studies in embryonic stem cells(ESCs)have indicated that large intergenic non-coding RNAs(lincRNAs)are involved in the regulatory network of pluripotency.However,the presence and function of pluripotency-associated lincRNAs in cancer cells with pluripotency features are unknown.In this study,we used embryonal carcinoma(EC)P19 cell lines to investigate the expression level of Halr1 in pluripotency and retinoic acid(RA)-induced differentiated states.Down-regulation of pluripotency associated factors such as OCT4,NANOG,SSEA1 and alkaline phosphatase at transcript and protein levels were used to confirm the differentiated status of P19 cells.Quantitative measurement of Halr1 transcript levels revealed a 79% decrease during RA-induced differentiation of P19 cells.These results indicate that upon exiting the pluripotency state the expression level of Halr1 similar to core pluripotency factors is remarkably reduced. | ZAHRA HOSSEININIA SARA SOLTANIAN NASER MAHDAVI-SHAHRI HESAM DEHGHANI | 2019 | BIOCELL2019，43，3： | 0 |
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