基本参数

Desige Parameter and test date of the remoulded cylineer shaped screw impeller used by inducer was introduced, which fully reached positive and negative rotation performance and accorded with conversion law.

介绍了用诱导轮改造后的圆柱形螺旋叶轮的设计参数和试验数据，改造后的叶轮不仅能达到正、反转性能要求，而且基本符合相似换算定律。

This nonparametric test was preferred, because no assumptions about the underlying distributions are necessary.

这是首选的非参数检验，因为没有任何假设的基本分布是必要的。

The paper commencing with analyses of the basic property of the hydrate, structure and sort, analyzes micro kinetics, formation condition, gas hydrate formation mechanism and influencing factor in high sulfur; also proceed analysis in depth for existent hydrate prediction model; according to gas dissolving, hydrate lattice deformation, synergistic action of inhibitor, carry out analytical study for existent error between normal forecast model and physical condition; introduce key parameter theory to establish and modify prediction model of hydrate formation condition to suit for high sulfur gas reservoir and inhibitor system, analyses different kinds of prevention and cure measures to influence of hydrate; finally, through field application in high sulfur gas reservoir hydrate.

本文从分析水合物的基本性质、结构与分类出发，分析了水合物生成过程中的微观动力学、生成条件、高含硫天然气水合物生成机理以及影响因素；并对现行的水合物预测模型进行了深入剖析，根据气体溶解、水合物晶格变形、抑制剂协同作用等因素对常规预测模型与实际条件之间存在的误差进行了分析研究；通过引入关键参数理论，建立并改进了适合高含硫气藏水合物生成条件预测模型及抑制剂体系的高含硫水合物生成条件预测模型，分析了各种防治措施对水合物的影响；最后通过高含硫气藏水合物实例计算，分析了含硫化氢、二氧化碳组分的天然气与常规气体对水合物生成条件的影响，并对各种水合物防治措施进行了实例计算。

It has great potentialities in such fields as micro-optics, integrated optics and optics communication.Firstly, based on the basic theory of GRIN optics the optical effects of the spherical symmetry GRIN micro-sphere lens were analyzed systematically.

本工作从梯度折射率介质光学的基本理论出发对球对称GRIN微球透镜的光学性能进行了系统分析；选择两种适当单体，采用悬浮扩散共聚法制备出聚合物梯度折射率微球透镜；测量所得透镜的折射率分布曲线和其他光学参数。

In this algorithm, the variable vector corresponding to one arbitrary point in the pre-sampling set initializes the reduced basis space.

其基本做法就是，在参数空间预采样的基础上，从某个预采样样本点开始，把该点作为第一个样本点，把其对应的场变量向量作为第一个基向量对其他的预采样点进行减基近似。

The main parameter of the fluid mechanics is Reynolds count, the basic condition of sludge dispersing Reynolds count is in onflow.

管出口流体力学的主要参数是雷诺数，分散污泥的基本条件是管出口的雷诺数处于湍流状态，雷诺数大于5000后污泥流动状态更稳定。

The influences of the medium＇s basic optical parameter on the photon density wave were analyzed.

分析了介质的基本光学特性参数对漫射光子密度的影响，在验证已有的理论基础上，发现该模型下的解析解不适用于漫射系数D较大的情况。

Furthermore, buckling effect factors and their influence law are exploited. Finally, combining the character of piles foundation with high bridge piers with engineering practice, four optimal mathematic models are proposed and flow diagram of optimization analysis is fulfilled by the computer optimum program. A numerical example is analyzed to get optimal solution by using this program. Meanwhile based on the optimal model with buckling coefficient as the objective function, parameter variables are discussed about their effect rule toward the optimal value of objective function.

最后，针对高桥墩桩基础的特点，在基本优化模型的基础上，根据不同的目标函数建立了相应的优化模型，给出优化设计算法流程图，编制了相应的优化计算程序；并根据高桥墩桩基的工程实际设计了一个数值算例，采用本文编制的优化计算程序对该结构进行优化，得到了优化后的最优解；同时，采用高桥墩桩基屈曲系数作为目标函数的优化模型进行因素分析，初步探讨了参数变量对目标函数最优值的影响规律和程度。

Distinct from those methods, this paper's main idea is to reformulate CPs as an unconstrained minimization problem with the form of least squares of a system of overdetermined equations being equivalent to the CPs.

与这些方法不同，本文的基本思想是借助互补问题与某个超定方程组同解的事实，利用该方程组的最小二乘形式将原问题直接转化为无约束优化问题，这样不仅把问题转化为光滑优化问题，而且避免了引入光滑参数导致的不便。

As well, ACA outperforms GA in performance on average. 2. Through the analysis and studying of Ant colony algorithm and Flow shop scheduling problem, a construction graph is introduced. Two ant colony algorithms are proposed and analyzed for solving the flow shop scheduling problem with the objective of minimizing the flowtime. The Initialization of parameters and updating of trail intensities and probability is described respectively and a newly local search technique is proposed. Last is the experiment and the comparison shows that the PACA performs better than the FACA in the case of relatively large-sized problems than in the case of relatively small-sized problems.

通过对基本蚁群算法的实现过程和流水调度问题进行研究，给出了求解流水调度问题的解构造图，提出了两种蚁群算法来求解以总流程时间最小为目标的流水调度问题-FACA 蚁群算法和PACA 蚁群算法，分别给出了FACA 蚁群算法和PACA 蚁群算法的参数初始化方式、相对应的信息素更新方法和概率分布规则，并提出了局部搜索模式，最后进行模拟试验，对这两种算法进行比较，试验结果表明：对于较大规模的问题，PACA 蚁群算法要优于FACA 蚁群算法，而对于较小规模的问题，FACA 蚁群算法优于PACA蚁群算法。

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。