查询词典 quasi-periodic

The French and British continued this excessive and quasi-anarchical exploitation of the Mauritian trees, during their colonial periods.

到了法国和英国的殖民地时期，这种毫无节制的砍伐仍在继续。

Pisier\'s results,under tree martingale valued space X is isomorphic toan a-uniformly convex space (2≤a＜∞),some quasi-normal or normal inequalitiesof a-variation maximal operator and a-conditional variation maximal operator of X-valued predictable tree martingales are identified.

同时，用G.Pisier's结果在树鞅取值空间X同构于a一致凸Banach空间条件下，证明了几个X-值树鞅α-方极大算子和a-条件方极大算子的拟范数不等式与范数不等式。

Generalized linear models, which can model a large variety of data, have a wide area of application. The class of GLMs includes, as special cases, linear regression, analysis-of-variance models, log-linear models for the analysis of contingency tables, logistic models for binary data in the form of proportions and many others. Usually, the parameters in the generalized linear models are estimated by the method of maximum likelihood . But, in the literature, the nonrobustness of the maximum likelihood estimator forβhas been studied extensively. The quasi-likelihood estimator of the parameter of the generalized linear model shares the same non-robustness properties.

广义线性模型，可用于对多种类型的数据进行建模，是应用非常广泛的模型，线性回归模型、方差分析模型、用于列联表分析的对数线性模型和逻辑斯谛模型等都是广义线性模型的特例，通常，我们用极大似然的方法估计广义线性模型中的参数，但是，在文献中，对参数β的极大似然估计的非稳健性已经有了广泛的研究，广义线性模型的拟似然估计也显示了非稳健性。

Vibration frequency modes of quasi-one-dimensional SiO2 clusters with one chain, two chain, three- and four- membered ring structures were calculated according to the density-functional theory.

运用密度泛函理论，计算了4～24个单元的准一维单链、双链、三元环、四元环管状构型SiO2团簇的振动频率。

This does not obligatory mean existence of independent metastability of these traps or their deactivation , but is mainly related with new positions of quasi-Fermi levels when the sample becomes slightly p-type.

观察的过程是：（1）EL2的光淬灭，（2）光致恢复，该过程导致TSC谱中大多数空穴峰的改变，但在PQ前没有TSC峰的再现，（3）用PQ光重照射。

The main purpose of this paper is to study the quasi-near-standard points in a metric space and the nonstandard completion of a metric space.

研究了度量空间中的拟近标准点和度量空间的非标准完备化。

It can be argued that, over the past decade or so, this roughly 6,000-member club has become more discerning, more willing to confer its blessings on quasi-independent, medium-budget films instead of the lumbering, middlebrow prestige productions it used to favor.

有人会说，在过去的这几十年里，这个大概只有六千名人的协会已经日渐明辨、更加愿意把这项荣誉赋予那些准独立电影和中等预算影片，而不是它惯于垂青的那些过于堆砌、反响平平的作品。

In Chapter 5, a row-column updating quasi-Newton algorithm for semi-infinite minimax problem is presented.

在第五章中我们给出了半无限极大极小问题的行列修正算法，并且证明了算法具有超线性速度和介于1和2间的收敛阶。

Finally, a minimization method based on the quasi-Newton algorithm is put forward.

实验结果表明，该方法适合含噪图像的分割，是一种有效的图像分割算法

The quasi-phsical method makes the original problem an optimization problem in mathematics. There is often the possibility of going to a local minimum of object function when solving the optimization problem mathematically.

所谓拟物就是主动地向自然界学习解决问题的方法，即寻找与原始数学问题等价的物理世界并观察这个世界中物质运动的生动形象，然后从中得出启发并逐步形式化为算法以求解问题。

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。