渗流

A simple NACE method has been developed for the assay of Rutaecarpine in Evodia rutaecarpa for the first time. Optimum separation of the analytes was obtained using a nonaqueous buffer system with 40 mmol/L ammonium acetate containing 30% acetonitrile and 10% acetate acid.

考察了影响电泳分离的各因素如缓冲溶液的浓度、用于调节酸碱度的乙酸的添加比例及用于调节电渗流的乙腈的添加比例，最后优化的分离缓冲溶液的组成是40 mmol/L NH4Ac 的甲醇溶液，其中含有30%的乙腈和10%的乙酸。

A digital image -based technique was proposed to characterize and quantify the heterogeneity of rock, and it was implemented into RFPA code in order to simulate the complete failure process of rock under both the exter

本文提出了用数字图像处理技术表征岩石非均匀性的基本方法，并通过把该技术实施到岩石破裂过程分析程序RFPA中，来模拟非均匀岩石在外载荷和渗流耦合作用下发生破裂的整个过程。

Quadratic finite volume element method s for the air pollution model in one-dimensional;2. The two-grid algorithm of the finite volume element method for second-order indefinite elliptic problems;3. A fally discrete finite volume element method is given for one-dimensional two-phase incompressible flow in porous media.

在初始网格剖分上采取分段线性函数空间作为有限体积元方法的试探函数空间，在相应的对偶网格上采取分段常数函数空间作为其检验函数空间，对一维不可压缩两相渗流驱动问题提出了全离散有限体积元方法，并得到L2-模误差估计。

I also find that the aggregation is rapidly re-suspended by an ac electro-osmotic flow, due possibly to Faradaic charging, at large voltage like 50 Vpp.

另外加高操作电压至50Vpp而频率为1MHz时，会发现聚集粒子被交流电渗流迅速地带走，此现象有可能是电化学反应所导致。

In addition, this paper studied using the stochastic fractural theory to simulte the form of fracture, and thought that it is correct to describe fracture by the fractural characteristics of fracture grid.

详细讨论了建立在渗流力学理论基础上的两种网格粗化技术，实现了油藏地质模型与油藏数值模拟的接轨。

The results of this study showed that the influencing factors of slope instability for the Luchang Area include rock fall at the west slopes, thick colluvium, sliding planes for dip-direction slopes, headward and sideward erosion of channel, as well as fast seepage of ground water. Two slide planes were recognized from geological profile model. One is potential slide plane on the dip-directional slope, another plane is located in the colluvium near Luchang river sides.

本研究结果显示，鹿场地区地质环境之不安定原因，有西侧岩壁落石、厚崩积土体、顺向坡平面滑动、河道的向源侵蚀和侧蚀、地下水渗流快速等；就所建构地质模型可以了解，鹿场地区可能的滑动面有两部份，一为潜在的顺向坡平面滑动面，另一为在鹿场溪河岸崩积层边坡内的滑动面。

Hydromechanical coupling of jointed rock mass was the key point for problems of hydraulics of rock mass.

裂隙岩体的渗流应力耦合机理是岩体水力学的研究重点。

An analytical solution for a tunnel in the saturated ground considereding the hydromechanical coupling is obtained.

本文利用解析法给出了饱和孔隙介质地层中考虑地下水渗流力作用下的应力。

Appropriate 3D FEM was established according to seepage field boundary and hydromechanical coupling effect of a planned tunnel excavating was analysed.

隧道开挖和由开挖引起的地下水渗流引起围岩应力重新分布，对隧道围岩的稳定性有重要的影响。

On the base of the brief description of the drive and control system of micro-fluid and the experimental setting of the technology of micro-injection, a novel process of the hydrophobe treating used to mend the characteristic of the inner and outer surface on micro-pipette is designed, which can improve greatly the injected effect and eliminate the disadvantage such as seepage or regurgitation during injection. The author puts forward the way of measuring the inside diameter of the micropipette. The program of measuring micro injection amount is designed. The original data of the micro injection experiment are explained and interpreted at last in the thesis.

在简要描述微流体驱动控制系统和微注射技术实验条件的基础上，设计了改善微针内外表面特性的疏水化处理工艺，消除了微喷射过程中的渗流、回流现象，改善了微注射过程中的流动特性，提高了微注射效果，得到了数字化微喷射的实验结果；提出了精确测量微针内径的折射率法；设计了纳升级以下的微液滴量的检测方案；最后，论文对微注射技术实验中的原始数据进行了分析。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。