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| 1 | Numerical simulation of counter-current flow field in the downcomer of a liquid-solid circulating fluidized bed显示文摘A comprehensive study on the hydrodynamics in the downcomer of a liquid-solid circulating fluidized bed(LSCFB) is crucial in the control and optimization of the extraction process using an ion exchange LSCFB.A computational fluid dynamics model is proposed in this study to simulate the counter-current two-phase flow in the downcomer of the LSCFB.The model is based on the Eulerian-Eulerian approach incorporating the kinetic theory of granular flow.The predicted results agree well with our earlier experimental data.Furthermore,it is shown that the bed expansion of the particles in the downcomer is directly affected by the superficial liquid velocity in downcomer and solids circulation rate.The model also predicts the residence time of solid particles in the downcomer using a pulse technique.It is demonstrated that the increase in the superficial liquid velocity decreases the solids dispersion in the downcomer of the LSCFB. | Abbas Dadashi Chao Zhang Jingxu(Jesse)Zhu | 2015 | Particuology2015，13，4： | 3 |
| 2 | Minimization of target registration error for vertebra in image-guided spine surgery显示文摘 | Ershad M Ahmadian A Dadashi Serej N | | 0，，： | 1 |
| 3 | Influence of TiO2 nanoparticle filler on the properties of pet and pla nanocomposites显示文摘 | FARHOODI M DADASHI S MOUSAVI SMA | | 0，，06： | 1 |
| 4 | Estimation of front-crawl energy expenditure using wearable inertial mea- surement units 显示文摘 | DADASHI F MILLET G P AMINIAN K | 2014 | IEEE Sensors Journal2014，14，4： | 1 |
| 5 | Efficient Ru -catalyzed synthesis of 9-aryl-9H-xanthene-3,6-diols as precursors to fluorones显示文摘Efficient condensation of resorcinol and various aromatic aldehydes in the presence of RuCl3nH2O as a homogeneous catalyst under reflux conditions was investigated.It was found that a very simple method afforded good to excellent yields of the desired products. | Khalil Tabatabaeian Alireza Khorshidi Ali Dadashi Milad Khoshnood | 2012 | Chinese Chemical Letters2012，23，2： | 0 |
| 6 | Single-mode quasi PT-symmetric laser with high power emission显示文摘Large-area lasers are practical for generating high output powers.However,this often comes at the expense of lower beam quality due to the introduction of higher-order modes.Here,we experimentally demonstrate a new type of electrically pumped,large-area edge-emitting lasers that exhibit a high power emission(~0.4 W)and a high-quality beam(M^(2)~1.25).These favorable operational characteristics are enabled by establishing a quasi PT-symmetry between the second-order mode of a large area two-mode laser cavity and that of a single-mode auxiliary partner cavity,i.e.,by implementing a partial isospectrality between the two coupled cavities.This in turn enlarges the effective volume of the higher-order modes.As a result,a selective pump applied via current injection into the main laser cavity can provide a stronger modal gain to the fundamental mode,and thus lead to lasing in the single mode regime after filtering out higher order transverse modes.The reported experimental results confirm this intuitive picture and are in good agreement with both theoretical and numerical analysis.Above all,the employed material platform and fabrication process are compatible with the industrial standards of semiconductor lasers.This work provides the frst clear demonstration,beyond previous proof-of-concept studies,of the utility of PT-symmetry in building laser geometries with enhanced performance and,at the same time,useful output power levels and emission Cndidclerisuics. | Enes Seker Babak Olyaeefaro Khalil Dadashi Serdar Sengu Mohammad Hosain Teimourpour Ramy El-Ganainy Abdullah Demir | 2023 | Light(Science & Applications)2023，12，7： | 0 |
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