查询词典 modified bessel function

The modified neighborhood field average filter,modified median filter and mode filter are analyzed,and a new practical method,which combines multilook average and nonlinear filter to reduce noise in the wrapped phase map,is presented.At the end of this paper,the characteristics of these approaches are compared and the experimental results by processing ERS-1/2 data are used to confirm that the method is more effective in suppressing noise in the interferogram of INSAR.

在比较条件邻域平均、模糊中值滤波和模数滤波3种非线性噪声抑制方法的基础上，提出了一种结合多视平均和非线性滤波的干涉相位图噪声抑制实现方法，并用ERS-1/2数据的实际处理结果验证了方法的有效性。

Current researches show little attention to this structure and thus this paper is devoted to an overall understanding of this structure. The content of this thesis focuses on the following three aspects:First, when restricting the potential semantic range of noun phrases with its own proposition, the modifying clauses in English and Chinese share the same semantic features. That is to say, the modified noun phrase and the predicate of the clause depend on each other for existence. This semantic restrictiveness is obligatory for the clause and the noun phrase it modifies in both languages. Second, though sharing the same potential conceptual meaning, the combination of a clause and its modified noun phrase shows different syntactic position in surface structure as well as the inner structure of the clause. Based on a full description of syntactic characteristics of this kind of clause, the present thesis points out the differences and similarities existing in surface structure between English and Chinese. Finally, under the guidance of Chomskys Minimalist Program(1995), the thesis analyses the derivational processes of this structure in both languages.

现有的对比研究对于该结构的探讨，不论是在描述和解释上都是不完备的，为了深化这一句法结构的认识，本文从如下几个方面对英汉分句作定语修饰名词的现象进行了对比：首先，分句用自身的命题限制中心名词的语义范围时，在两种语言中具有相同的语义特征，即中心名词与分句内部的谓词之间存在依存关系，分句修饰名词必然受到语义的限制，是英汉两种语言必须共同遵守的准则；其次，英汉两种语言中表达相同概念意义的这一句法单位与其修饰的名词结合后，在表层结构中体现出不同的位置关系，且分句内部的句法结构也各有特点，本文在充分对其句法特征描述的基础上，指出二者在表层形式上的差异和共性；最后，尝试在乔姆斯基的最简方案(1995)框架内，演示英汉两种语言。

English sentence composite long sentence for sentence, followed by the attributive noun phrase or clause, as well as the first sentence of the verb or the back of the adverbial phrase or clause as modified ingredients, these ingredients can be modified once a one of a set.

而英语句长句多为复合句，由名词后面的定语短语或从句，以及动词后面或句首的状语短语或从句作修饰成份，这些修饰成份可以一个套一个连用。

The results showed the crystallinity of the modified PET decreased with the increase of the content of NPG, but the heat shrinkability was improved obviously. Amorphous polyester material that would not crystallize under usual circumstances was obtained, which made the modified PET film to be able to achieve a high degree of orientation during stretching, and it was heat shrinkable when the ambient temperature was higher than its T the effects of different drawing temperature and DR on heat shrinkage of copolyester film was discussed.

结果表明，通过NPG共聚改性的PET的结晶能力随NPG用量的增加而降低，热收缩能力有了明显的提高；无定型区增大，获得了在通常情况下不能结晶的PET无定型材料，从而使改性PET薄膜在拉伸时保持较高的取向度，并在高于其T时发生解取向热收缩；拉伸温度、拉伸倍数等拉伸工艺对于聚酯薄膜的热收缩率有着显著的影响。

We uses a farther modified Meteorological Draught Severity Model ta calculate summer (6-8 months) moisture anomaly index Z far Changbai mountains area which based an the Palmer Draught Severity Model and the modified Palmer Draught Severity Model corrected by Liu Weiwei etc. and then the spatial temporal distribution of the Z values is analyzed by empirical orthogonal funtion expansion.

根据帕默尔旱度模式和刘巍巍等人修正的帕默尔旱度模式，以长白山地区20个气象站历年气温和降水资料建立长白山地区的旱涝指数模式，计算了能够反映长白山地区干湿变化的20个气象站1960-2005年夏季（6-8月）逐月水分距平指数。

Second, we research the Baum-Welch algorithm of modified HMM and derive the update parametric estimation equations for modified HMM based on traditional HMM.

其次，在传统的隐马尔可夫模型的基础上，研究了改进的模型的前向-后向算法和Baum-Welch算法，并导出了改进的模型的参数估计公式。

The modified genetic algorithm has been used in parametric optimization of a sliding-vane compressor, by which the result shows that the modified genetic algorithms is reliable and efficient, as proved by the reasonable parameters.

并且尝试了将改进的遗传算法用于滑片式压缩机参数的优化，结果表明，经过改进的遗传算法有效可靠，经过优化的压缩机参数合理。

This paper builds modified object lattice by introducing two partial ordering relations ≤′ and C′ and a new intersection ∩′,followed by generating a concept lattice with the modified object lattice.

通过在对象集内引入两个偏序关系≤′和C′及一种新的交运算∩′来建立改进的对象格，然后通过此对象格产生概念格。

Na-montmorillonite was modified with different quaternary phosphonium salts using ion-exchange method,and the structures and property of modified montmorillonite were studied.

采用离子交换法将不同的季鏻盐交换到钠基蒙脱土的层间得到改性蒙脱土，并对改性蒙脱土的结构和性能进行了研究。

We modified natural zeolite by AlCl_3 and discussed optimization conditions aluminum modified zeolite preparing and the effect factors of influencing phosphor removing efficiency of aluminum zeolite.

实验得到的铝改性沸石对磷的吸附效果很好，在pH为7～8、磷浓度小于2mg／L范围内，固液比1：100时，溶液脱磷率可达90％。

Molecular Distillation is a kind of high vacuum distillation method, which is suitable for the separation of high boiling, heat sensitivity and viscidity products.

分子蒸馏技术是一种在高真空条件下进行的连续蒸馏过程，适合于分离高沸点、热敏性及具有生物活性的混合物。

They are to the Noughties what yuppies were to the Eighties .

那在六十年代是时髦的，但在八十年代肯定是过时了