内流的

Based on the Reynolds stress model CFD numerical simulation method, the experimental study of the inflow field and separation feature of nine forms of entrance structures of the oil-water separation hydrocyclone including vortex curved entrance and Archimedes spiral entrance is carried out and four kinds of ideal optimized entrance structures are obtained.

采用雷诺应力模型CFD数值模拟方法，对涡线形曲面入口、阿基米德螺旋线形入口等9种油水旋流分离器入口结构形式的内流场和分离特性进行了试验研究，得出比较理想的4种优化入口结构形式。

This paper used commerce software FLUENTS to implement numerical simulated compute because it could in more detail and comprehensive open out the distribution laws of the flow field in the channel and in the holes and the experimental results had been consummately enlarged. At last, the experimental results were contrasted and analyzed with the computational ones.

本文还利用商业软件FLUENT5进行了数值模拟计算，数值计算可以更详细更全面地展现通道内以及孔内流场的分布规律，更加丰富和完善了实验测量结果，并将实验结果和数值计算结果进行了对比分析。

In the numericalstudy, three-dimensional elastodynamics equations and Morison equation are applied tosimulate the time histories of dynamic response of submarine pipelines suspended over flatbeds sucessfully. The three-dimensional interaction of pipeline and internal flow isnumerically simulated by applying the iterative computation to the fluid-structure interfacesand using the elastodynamic equation and the incompressible fluid N-S equation andcontinuity equation.

在数值研究方面，本文利用三维弹性动力学方程，结合莫里森方程，较好地模拟了规则波浪作用下近壁悬跨弹性海底管线动力响应过程，结合不可压缩流体N-S方程和连续方程，进行管线及其内部流体的三维流固耦合数值计算，基于数值计算结果探讨内流管线系统的动力特性和管内流体特征。

The furnace gas is applied with the ideal gas state equation.

为了改善大型渗碳炉的均匀性，本文应用数值计算方法研究圆筒形井式渗碳炉炉膛内的流动传热过程，假设炉内流场满足定常、不可压缩轴对称条件，炉内气体可以应用理想气体状态方程。

The coding device for DVD system and other record systems includes audio and video coder to convert the input audio and video data into audio and video data stream; system coder to convert the audio and video data stream into audio and video data stream of, say, MPEG format; audio and video data stream buffer before the system coder to store audio and video data stream generated during one set period by the audio and video coder; and buffer downstream the system coder with relatively low capacity and capable of performing the record operation of pre-trigger.

提供了在DVD系统等记录系统中使用的编码设备。该编码设备包括分别把输入音频和视频数据转换成音频和视频数据流的音频和视频编码器、把音频和视频数据流转换成例如MPEG格式的音频／视频数据流的系统编码器。还包括系统编码器上游的音频和视频流缓冲器，它们分别存储音频和视频编码器在一段预选的时间内产生的音频和视频数据流，从而使系统编码器下游的缓冲器的容量较小并有效地进行预触发器记录操作。

In vitro culture studies of childhood myelodysplastic syndrome: establishment of the cell line MUTZ-1. Leuk Lymphoma, 1997;

大量实验表明，很多细胞在凋亡早期会出现胞质内Ca2+浓度迅速持续的升高，这种浓度升高来源于细胞外Ca2+的内流和胞内钙库的释放。

Model of two-phase flow on the precess of launch of gun for balance is established.

本文针对以固体弹丸为平衡体的平衡炮发射技术进行理论研究，对平衡炮发射过程建立相应的经典内弹道模型与两相流内弹道的物理模型与数学模型，通过数值模拟的方法，对平衡炮发射过程进行了一些研究，主要研究内容如下：(1)建立经典内弹道模型，通过数值计算，分析平衡炮发射过程中的膛内压力分布特征及平衡发射特征。

In vivo, CXCR4-A549 and A549 cells were injected subcutaneously into nude mice(each group in 6).Four weeks later the mice were scarified and the tumors in situ and the lungs were taken out to be examined histologically.(3) Th cell cycle distribution was measured by flow cytometry to analyse the effect of SDF-1/CXCR4 in the cell proliferation and atoposis. The changes of the intracellular calcium concentration after SDF-1 activation were aslo measured by flow cytometry. Western blot was used to anlayse the phosphorylation of AKT and ERK, and the expression of MMP-2 and VEGF-C.

3为探讨SDF-1/CXCR4在肺癌侵袭和转移中的作用机制：①利用流式细胞仪检测CXCR4-A549与A549两组细胞的增殖和凋亡，分析上调CXCR4的表达后，对细胞生长周期的影响；②利用流式细胞仪检测两组细胞钙离子内流强度，分析SDF-1/CXCR4对钙离子通道活性的调控；③采用Western blot实验检测两组细胞PI3K/AKT、MAPK/ERK相关信号通路的活性，分析SDF-1/CXCR4可能激活的下游信号分子；④采用Western blot和RT-PCR检测两组细胞肿瘤转移相关基因VEGF-C、MMP-2的表达，探讨SDF-1/CXCR4与VEGF-C、MMP-2的相互作用关系。

The above problems are studied in this thesis. First, the implicit NND scheme with mix flux splitting method proposed by Zhang Hanxin that is first order accurate in time and second order in space is modified. The modified scheme keeps the characteristics of fast convergence and is second order accurate both in time and space. It can be capable of simulating the unsteacly flow. Second, the topological method founded by Zhang Hanxin is improved to study the characteristics of vortex near the singular point on its axis and the cross streamlines on the longitudinal section passing the vortex axis. On the basis of topological results, a program which visualises numerical results is made out. It can help us analyse the characteristics of vortex motion.

本文对上述问题做了研究：第一，在数值模拟方面，借助于张涵信提出的NND算法和混合通量法，我们将他建立的时间为一阶、空间为二阶精度的快速隐式算法推广为时间和空间均为二阶精度的算法，这样做保留了原格式收敛快的特点，而且能适用于真实的非定常流态的计算；第二，将张涵信的拓扑分析方法加以推广，研究了涡轴附近及破裂点邻域内流场的空间特征，并以这些拓扑分析结果为指导，研制了一套显示计算结果的软件，这一软件能很好地帮助我们分析流场的计算结果和旋涡演变的特征。

This paper deals with the stability and parametric resonances of a pinned-pinned pipe conveying pulsating fluid.

研究了两端铰支输流管道在脉动内流作用下的参数共振问题。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。