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An underground unpowered anaerobic reactor for the treatment of rural domestic sewage was studied in this paper, based on the anaerobic biomembrane technology and push-flow theory by using the anaerobic pipeline or baffler reactor full of hollow-sphere fillings.

该文根据厌氧生物膜技术和推流原理,采用内充空心球状填料的地下厌氧管道式或折流式反应器为处理设备,研究了农村生活污水地埋式无动力厌氧达标处理技术。

On the basis of slip-diffusion model of multiphase flow, a three-dimensional mathematical model of gas-particle flow in blowpipe has been developed and debugged to calculate the gas-solid two phases flow, including gas velocity and particle velocity inside the blowpipe.

运用多相流的拟流体模型建立了高炉局部富氧喷煤直吹管内气粉两相流动的数学模型,对气粉两相流场进行了数值研究,探讨了气相和煤粉的速度分布规律及其影响因素,其中包括氧-煤喷枪的结构、漩流数和富氧率等。

One lumen is the flux emitted in one solid angle by a point light source of one candela .

流明:量度光通量的单位。1流明是由1烛光的点光源在1立体角内所发出的通量。

One lumen is the flux emit ted in one solid angle by a point light source of one candela.

流明:量度光通量的单位。1流明是由1烛光的点光源在1立体角内所发出的通量。

Serum free medium containing 0,16,32,64,128/μg/mL was added 24 hours after culture and cultured for another 24 hours. Cells were collected centrifugally and resuspended in 75% alcohol. Finally, cells were fixed 4℃overnight. Then cells were stained with PI for 30 min under 4℃.. FCM was run with parameter FL2 - A.

流式细胞仪检测细胞凋亡率对数生长期的BIU-87细胞接种于培养瓶内,24 h后更换含有终浓度0、16、32、64、12μg/mL的无血清培养液,处理24 h,离心收集,75%冷乙醇悬浮后4℃固定过夜,PI染液4℃避光染色30min,流式细胞仪于FL2-A参数下检测。

A major factor in deviation from optimal performance of the activated sludge secondary clarifier is the presence of density currents,resulting from the density difference and temperature difference.

异重流的形成是影响活性污泥系统二沉池水力学性能的主要因素,形成异重流的主要原因包括沉淀池内不均匀的污泥分布和温度分布。

The results show that the increasing Marangoni number will lead to more nonlinear distribution of temperature field, but streamfunction of the cell center; vorticity on the wall and peak value of velocity diminish first, then increase, finally lose stability. The thermocapillary convection in the whole liquid zone appears to get stronger along with the augmentation of Prantal number. The effect of increasing of Biot number on temperature and flow fields is not obvious although the convection is strengthened a little. As increasing the aspect ratio A, thermocapillary convection induced by temperature gradient and liquid viscosity becomes stronger.

结果表明:温度场的非线性分布随着Ma数的增大而加剧,但对流涡胞中心流函数、壁面涡量和轴向、径向速度峰值并不象温度场随着Ma数的增大而单调增大,而是先减小,然后增大,最后失稳,表明Ma数对热毛细对流的影响比较复杂,针对不同的物理模型,会导致完全不同的流态;Pr数愈大,流体的热扩散能力在粘性扩散与热扩散能力之比中愈占支配地位,当Ma数一定时,热毛细对流随Pr数的增大在整个液体区域内有增强的趋势;Bi数增大,热毛细对流有所增强,但不甚明显;A的增大使得由温度梯度和流体粘性诱导的热毛细对流随之增强。

The numerical results were proved to be reliable by comparing with some published experimental data. The results show that, when only Coriolis force is in effect by omitting the centrifugal buoyancy force, the flow in the cavity is axi-symmetrically stable, the Coriolis force is a kind of resilience, and does not cause flow unstably.

研究结果表明:在哥氏力的单独作用下轴向通流旋转盘腔内的流动基本上是稳定的三维轴对称结构,即使有轻微的径向或周向振动发生,由于哥氏力是恢复力,对其有抑制作用,因此振动会随着流场的发展逐渐消失。

The comparison of contents of carbohydrate and hormone in cucumber roots,the root dry weight,soluble sugar content,glucose content,sucrose content,fructose content were higher,but starch contents werelower,and the contents of ZT,GA and IAA in xylem sap and roots were higher in G1 treatment,but ABA content was lower.However,the root dry weight significantly decreased in non-ventilation treatment(F1),and starch content,soluble sugar content,glucose content,fructose content were the trend of the dropping after the first rising, and sucrose content was lower,and the contents of ZT,GA and IAA in xylem sap and roots were lower,but ABA content was higher.

不同处理黄瓜根系碳水化合物含量和激素含量比较发现,G1通气处理根系的干重、总可溶性糖、葡萄糖、蔗糖和果糖含量均较高,淀粉含量较低,根系和伤流液中ZT、GA_3和IAA含量均较高,ABA含量较低;而非通气处理(F1处理)与对照相比根系干重显著降低,根系内淀粉、总可溶性糖、葡萄糖以及果糖含量均呈先升高后降低的趋势,而蔗糖含量较低;根系和伤流液中ZT、GA_3和IAA含量均较低,ABA含量较高。

The fourth chapter is to analyzes the peculiarity of tourist flows implosing in region. Its analyse is aim at the flux and the way of jiangzhehu region's iner tourist flows, the demology characters of jiangsu province's regional implosing tourist.

第4章是以江浙沪地区为例,通过对该地区区内旅游流的流量、流向的分析,以及对江苏省内聚游客的人口分析来具体认识旅游流在区域内聚的特点。

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