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猪蓝耳病蛋白表达实验
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作者 任晓晔 《兽医导刊》 2020年第16期214-215,共2页
本实验通过切胶回收猪蓝耳病PCR产物的方法,插入表达载体P-E1,感受态细胞T1转化,再提取质粒,插入表达载体BL21,挑选阳性菌,用IPTG诱导表达,尝试不同的诱导时间决定最佳的表达条件,采用SDS-page电泳对表达产物进行鉴定[1],得到目的条带。
关键词 回收产物 表达载体 提质粒 诱导
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Prediction of Core-Annulus Solids Mass Transfer Coefficient in Gas-Solid Fluidized Bed Risers
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作者 刘新华 高士秋 宋文立 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2005年第5期577-582,共6页
Based on analysis of energy dissipation in the core region of gas-solid fluidized bed risers, a simplified model for determination of core-annulus solids mass transfer coefficient was developed according to turbulent ... Based on analysis of energy dissipation in the core region of gas-solid fluidized bed risers, a simplified model for determination of core-annulus solids mass transfer coefficient was developed according to turbulent diffusion mechanism of particles. The simulation results are consistent with published experimental data. Core-annulus solids mass transfer coefficient decreases with increasing particle size, particle density and solids circulation rate,but generally increases with increasing superficial gas velocity and riser diameter. In the upper dilute region of gas-solid fluidized bed risers, core-annulus solids mass transfer coefficient was found to change little with the axial coordinate in the bed. 展开更多
关键词 solids mass transfer coefficient core-annulus structure turbulent diffusion gas-solid fluidization
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