查询词典 non-destructive

This paper discusses the identifyability and identification algorithms for the non-minimum-phase linear system with unmeasurable non-stationary input.

摘要非平稳过程在实际中是大量遇到的，该文研究当系统输入是不可量测的非平稳过程时，系统相位的可辨识性及辨识方法。

So, to study on non equilibrium unstable state multiphase wellbore inflow stimulation model of condensate gas well and non equilibrium multiphase inlow performace is of great importance.

因此，研究凝析气井非平衡非稳态多相流井筒流动模拟模型及非平衡多相流流入动态具有重要意义。

Selected the skill of non legato, respresented the characteristic of metal timbre on piano in three basic playing techniques, as research object, through the software of VOICEBOX, The MATLAB toolbox for speech processing, by sampling and cutting contrastive analysis both of the same with different playing touch ways on KAWAI upright piano, proved the known proposition with the physical quantity and the trend line graph, the auther explored the influence on resonant frequency by different touch key in non legato playing.

在钢琴3种基本弹奏法中，选例最能代表钢琴"金属性"音色特征的非连奏法为研究对象，通过"VOICE-BOX，The MATLAB toolbox for speech processing"软件，在立式"卡瓦依"钢琴上用不同奏法和相同奏法下不同触键方式的采样、切割对比分析，用求得的物理量和趋势线形图对已知命题加以证明，探究非连奏法中触键方式的不同，对共振频率的具体影响。

For the first patern, elastic dynamics is adopted to study the steady state rolling contact, elastic dynamics incorporating with rigid dynamics is adopted to study the non-steady state. For the steady state, the analytical solution is obtained, and for the non-steady state, the variational formulation to solve the problem numerically is derived For the later patern, the function type friction coefficient is introduced. On the basis of the quasi-stastic theories of constant friction coefficients, both the exact theory and the simplified theory of the function type friction coefficient are established, the computer programms for both the theories are also made out. Using the function type friction coefficient, Shen-Hedrick-Elkins theory's application range is extended to large creepage .

对于速度对接触体力学特性的影响，本文采用弹性动力学方法和弹性动力学与刚体动力学相结合的方法分别对稳态和非稳态两种情况进行了研究，得到了稳态情况的解析解，给出了对非稳态情况进行数值求解的变分公式；对于速度对相关物理量的影响，本文主要讨论了速度对摩擦系数的影响，在滚动接触准静态理论的基础上引进了函数型摩擦系数，建立了函数型摩擦系数的滚动接触准静态精确理论和简化理论，并分别编制了相关的计算程序，还用函数型摩擦系数将简便的Shen-Hedrick-Elkins理论的适用范围扩展到大蠕滑区。

Through concretely analyzing the magnitude and error of deflection of the vertical, we can get the results that the long-period, smaller-range non-tidal variations are commonly less than the tidal ones, but the short-period, larger-range non-tidal variations are comparable to the tidal ones, especially in some areas they are even bigger than the tidal ones, this state can be measured by repeated gravimetry completely.

通过对垂线偏差量级和误差大小的具体分析，得出结论：一般长周期的、幅度较小的非潮汐变化要小于潮汐变化，但短周期的、幅度较大的非潮汐变化则可能与潮汐变化相当，个别地区甚至还会超过潮汐变化，这种情况完全可以用重复重力测量的方法检测到，这也说明重复测量的方法是可行的。

Then the weak formulation of the control equations considering the contact constraint conditions has been developed. Combined the Lagrange multiplier and penalty function methods, the augmented Lagrangian method is used to treat the contact constraint and solved the non-linear and non-smooth problems of the mechanical response perfectly. A finite element model has been applied for the test project of the reinforced slope and to study the mechanism of the interaction of the soil and reinforced material.

本文在Lagrangian网格的控制方程中引入接触界面条件，并采用了经典的Coulomb摩擦模型作为界面切向面力的本构模型，继而发展了考虑接触约束条件的控制方程的弱形式；在求解方法上，综合了Lagrange乘子法与罚方法的优点，采用增广的Lagrangian方法处理接触界面约束，很好地解决了接触问题中的高度非线性和响应不平滑性。

It analyses the characterization of typical type curve and the influential factor of well-test curve ,which includes non-dimensional offsetting, non-dimensional length of horizontal welk equivalency pressure point, interporosity flow coefficient, storativity ratio and the boundary condition.

分析了双重介质水平井典型曲线特征以及影响水平井试井曲线特征的因素，得到了其影响因素主要有无因次偏心距、无因次水平井长度、等价压力点、储能系数、窜流系数以及油藏的边界条件。

A currency formula of Laplace space solutions is obtained on the non-dimensional reservoir pressure and the non-dimensional wellborn pressure.

在尺度变换下具有"自相似性"和"标度不变性"，从有限认识无限的特殊规律的科学。

The affected factors to the whisht intensity of pipeline is analysed in two aspects: defectiveness and non. In the non-defectiveness aspect, the tranversing pipeline is considered as thin-wall container, and the annulus stress emerged from inner pressure as main stress on base of stress influence colligated with temperature and inner pressure, then amends it with the axis orientation stress, with the 4th intensity theory, we can calculate the whisht intensity of river tranversing oil pipeline.

从有缺陷和无缺陷两个方面对管道静强度的影响因素进行了分析，在无缺陷穿越管道的静强度分析中，是将穿越管道视为薄壁容器，并在综合考虑温度和内压对管道的应力影响的基础上，把由内压引起的环向应力当作主要应力，再用轴向应力加以修正，根据强度理论计算相当应力，从而实现了穿越河流输油管道的静强度计算。

To assess this association, the researchers compared 51 non-Hispanic white men newly diagnosed with primary squamous-cell carcinoma of the tongue, and 54 non-Hispanic white men evaluated during the same period but without a malignancy.

研究者通过调查对比研究发现51为非西班牙裔的白色人种用新方法诊断患鳞状细胞癌，而同期的54人没有恶性迹象表现。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。