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Because the hardware and software may be implemented quickly if wechoose proper normal bases to represent finite fields. In this paper, we first introducesome basic definitions and facts on normal bases over finite fields, then extend theseresults to any Galois extension fields.

在这篇文章中,我们先介绍了有限域上的一些基本定义及关于正规基的相关结论,进而将域扩张到一般的伽罗瓦扩域中,得到了伽罗瓦扩域中正规基与其对偶基等价的充分必要条件,从而将有限域上正规基的等价条件推广到任意伽罗瓦扩域上。

Eight hydrazone Schiff bases have been synthesized by the reaction of salicylaldehyde, o–vanillin, 2-hydroxy-1-naphthaldehyde with nicotinic or isonicotinoyl hydrazide in anhydrous ethanol respectively; Three thiosemicarbazone Schiff bases have been synthesized by the reaction of salicylaldehyde, o–vanillin, o–hydroxyacetophenon with thiosemicarbazide in hydrous-ethanol respectively.

主要包括以下五部分的工作: 1、以水杨醛、邻香草醛、邻羟基萘甲醛、邻羟基苯乙酮分别与烟酰肼和异烟酰肼按1:1的比例在无水乙醇中反应,制备了八种酰腙类Schiff碱;以水杨醛、邻香草醛、邻羟基苯乙酮与氨基硫脲在水-乙醇混合溶剂中反应,合成了三种Schiff碱配体,并对Schiff碱配体的结构进行了表征。

Based on the existed theory of mareoids and fuzzy matroids, this thesis studies the closed regular fuzzy matroid and its fundamental sequence, the fuzzy base and its algorithm of closed fuzzy matroids, the fuzzy circuit and its algorithm of closed fuzzy matroids and so on. The main contributions of this thesis are as follows: 1 The necessary and sufficient condition of closed regular fuzzy matroid and a property of its fuzzy dual matroid are found by studying some properties of closed regular fuzzy matroid. 2 By studying some properties of fuzzt bases of closed fuzzy matroid, the necessary and sufficient condition of judging fuzzy bases of closed fuzzy matroids and some corollaries are found. In the end, an algorithm of obtaining a fuzzy base is given. 3 By studying some properties of fuzzt circuits of closed fuzzy matroid, some necessary and sufficient conditions of using its fundamental sequence to express fuzzy circuits are found. An algorithm of obtaining a fuzzy circuit is given. 4 By studying the fundamental sequence of closed regular fuzzy matroid, some necessary and sufficient conditions of fundamental sequence of closed regular fuzzy matroid are found.

本文在现有拟阵和模糊拟阵理论的基础上,研究了闭正规模糊拟阵及其基本序列,闭模糊拟阵的模糊基及算法、模糊圈及算法等内容,现分述如下: 1研究了闭正规模糊拟阵的一些性质,得到了闭正规模糊拟阵的充要条件及其模糊对偶拟阵的一个性质; 2研究了闭模糊拟阵模糊基的性质,找到了闭模糊拟阵模糊基的充要条件和几个推论,最后还给出了求模糊基的算法; 3研究了闭模糊拟阵模糊圈的性质,找到了用基本序列来表达模糊圈的几个充要条件,并给出了求模糊圈的算法; 4研究了闭正规模糊拟阵的基本序列,找到了闭正规模糊拟阵的基本序列的几个充要条件。

A new class of noiseproof adaptive Bandelet bases (NA-Bandelet bases) is proposed.

构造了具有抗噪性能的自适应Bandelet基。

The main points of this thesis are as follows: It is presented that the key issue to constructing of the orthonormal wavelet on the basis of multiresolution analysis theory is to design the wavelet bases which can be used to decompose the signal into a two-band form, while the construction of wavelet bases is equivalent to designing a filter bank with perfect or nearly perfect property restricted by regularity.

论文工作在以下几个方面取得了进展:提出用多尺度分析理论构造正交小波,最终可归结为构造能进行两带分解的小波基,而小波基的构造又等价于在附加正则性条件约束下,设计一个完全恢复和近似完全恢复的滤波器组。

Study and prehension the anatomic imaging features of bases of skull and atlantoepistrophic articulation,study the value and limitation of X-ray pictures, CT and MRI in favour of increasing the level of diagnosis of diseases in bases of skull and atlantoepistrophic articulation.

学习和掌握环枢部的影像解剖学特点,X线平片、CT、MRI不同检查方法的价值和限度,有利于提高颅底寰枢部病变的诊断和鉴别诊断水平。

The right to use the rural residential bases is a special and independent usufruct in our country. It is a right that rural residents make buildings and ancillary facilities , and possess , use and restrictedly dispose the bases that the rural residents legally get from the collective economic organizations.

农村宅基地使用权是我国特有的一项独立的用益物权,是农村居民在依法取得的集体经济组织所有的宅基地上建造房屋及其附属设施,并对宅基地进行占有、使用和有限制处分的权利。

Right to use the rural residential bases is a special and independent usufruct in our country. It is a right that rural residents make buildings and ancillary facilities , and possess , use and restrictedly dispose the bases that the rural residents legally get from the collective economic organizations.

提要: 农村宅基地使用权是我国特有的一项独立的用益物权,是农村居民在依法取得的集体组织所有的宅基地上建造房屋及其附属设施,并对宅基地进行占有、使用和有限制处分的权利。

The results showed that RSAP used two primers of 18 nucleotides in which starting at the 3' end of each primer were restriction site sequences (4-6 bases),followed 12-14 bases of arbitary sequence, the differences between two primers were restriction sites and filler sequence; PCR am-plification was run for the first 5 cycles with an annealing temperature of 35℃, followed by 35 cycles with an annealing temperature of 48℃; the PCR reaction of 25 μL included 20ng DNA templates, 2.5mmol/L of Mg(superscript 2+), 0.2 mmol/L of dNTP, 1.5U of Taq DNA polymerase, 600nmol/L of each primers. RSAP is a new maker technique with simplicity, moderate throughput ratio and reliability. RSAP is of good reprodicibity and broad application.

结果显示,RSAP技术的引物为2条长度均为18bp的引物,引物的3'端为4~6个碱基的限制性酶切位点序列,接着是12~14个碱基的随机序列,2条引物的限制性位点和随机序列不同:PCR扩增的前5个循环采用35℃的退火温度,随后的35个循环采用48℃的退火温度;在25μL反应体系中,模板DNA用量为20ng,Mg(上标 2+)浓度为2.5mmol/L dNIPs浓度为0.2 mmol/L,Tap DNA聚合酶用碳为1.5U,2条引物浓度均为600mmol/L;RSAP技术重复性好,适用性广泛,是一种操作简便、产率中等、稳定可靠的DNA标记技术。

Firstly based on the theory of Semantic Element and the characteristics of phrases and sentences with prepositions,the Semantic Pattern Bases of English prepositions(special Semantic Element Representation Bases for prepositions) were presented.Then the translation process of prepositions was in two steps.One was getting English complete semantic pattern by semantic analysis based on Semantic Pattern Base,the other was deploying into Chinese complete semantic pattern and Chinese representation.

介词的翻译由两步来实现:第一步基于语义模式库对英语含介词的短语和句子进行语义分析得到英语完整语义模式;第二步基于语义模式库将英语完整语义模式代入展开成为汉语完整语义模式和汉语译文。

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推荐网络例句

A carrier gas such as nitrogen is directed through line 20 and valve 22 to connect with line 26 and mix with the gas sample.

如氮气之类的载体通过管线20和阀22引入,与管线26相通,与气体样品混合。

But for the most part, knaves and parasites had the command of his fortune

然而支配他的家产的大多是恶棍和寄生虫。

For he that is now called a prophet, in time past was called a seer.

他们就往天主的人所住的城里去了。