性质

For a deep study on the characters of starch phosphorylase as well as its physiological effects during starch metabolism, the optimum extractive techniques and measurement conditions of SP in the bulb of Lilium davidii var. unicolor were ascertained, furthermore, some biochemical nature of this enzyme were preliminarily studied in this experiment.

摘要为深入研究百合鳞茎淀粉磷酸化酶的性质及其在鳞茎淀粉代谢中的生理作用，本试验确定了兰州百合鳞茎内SP的最佳提取和测定条件，并对部分酶学性质进行了初步探索。

The properties of the unitary matrix for the localization of molecular orbitals were discussed.

讨论了分子轨道定域化酉矩阵的性质，揭示了其物理意义和统计性质。

However,the fractal studies are directed at growth models basis on growth mechanism of plant and model of the form only consider of the appearance of plant,unlinked to Structural Mechanics of trees and conclude three-dimensional coordinates.

本项研究试图通过分形理论为研究树木的力学性质提供空间结构模型，因而分形研究的结果是要构建出有三维坐标的树木力学结构模型，为下一步进行力学性质分析打下基础。2。

As to the unsectarian character of Masonry and its symbolism, Pike justly remarks: Masonry propagates no creed, except its own most simple and sublime one taught by Nature and Reason.

至於unsectarian性质的砌体和象徵，公正派克说：砌体没有信仰的传播，除了其自身最简单和崇高的一所教的性质和原因。

From an basic research view, if we estimated the properties of the unseparated mixture in the light of the properties of the purified grafted polymer, there would be a great deal of difference.

从基础研究角度看，如果用反复提纯后测定的纯接枝物性质估计未经分离的混合物的性质将会出现相当大的偏差。

Narrow Line Seyfert 1s (NLS1s, including high luminosity quasars with similar properties) are very important extrema of type Ⅰ AGNs. The unusualness of NLS1s is very useful to test the viabilities of AGNs models and thus provide a new way probing into AGN phenomena. The ratio of Fe to α-element (e. g., O, Ne, Mg...), Fe/α, can serve as an excellent indicator for constraining the ages of star-forming systems.

中文题名窄线SeyfertⅠ星系与活动星系核光学FeⅡ发射线副题名外文题名论文作者周宏岩导师周又元王挺贵学科专业天体物理研究领域\研究方向学位级别博士学位授予单位中国科学技术大学学位授予日期2003 论文页码总数127页关键词活动星系核河外星系馆藏号BSLW /2003 /P15 /7 窄线SeyfertⅠ型星系(Narrow Line Seyfert 1，NLS1，包括具有类似性质的类星体)是具有极端性质非常重要的一类Ⅰ型AGN，对NLS1的深入研究是限制和完善活动星系核理论模型的一条新途径。

How quickly all things disappear, in the universe the bodies themselves, but in time the remembrance of them; what is the nature of all sensible things, and particularly those which attract with the bait of pleasure or terrify by pain, or are noised abroad by vapoury fame; how worthless, and contemptible, and sordid, and perishable, and dead they are- all this it is the part of the intellectual faculty to observe.

所有事物消失得多么快呀！在宇宙中是物体本身的消失，而在时间虽是对它们的记忆的消失。这就是所有可感觉事物的性质，特别是那些伴有快乐的诱惑或骇人的痛苦的事物，或者是那些远播国外的虚浮名声的性质。它们是多么的无价值、可蔑视、肮脏、腐烂和易朽啊！所有这些都是理智能力要注意的。

In this paper, we first give an example that the bilateral weighted shift operator in c_0space is hypercyclic operator and first solve the existence problem of hypercyclic operator in c_0or c_0(Z space . And then we investigate the property of weighted shift operator in c_0 space and an important property of the hypercyclic vector of weighted shift operator in c_0 space and c_0 space. At last we give the concept of weak hypercyclic operator and weak hypercyclic vector , and give the equivalence between the weak hypercyclicity and the hypercyclicity in l~1 space.

本文首先给出了c_0空间上的一个双边左加权移位算子是超循环算子的一个例子，首次解决了c_0 或c_0(Z 空间中超循环算子的存在性问题；接下来分别研究了c_0和c_0空间上的加权移位算子的性质以及c_0和c_0空间上的加权移位算子的超循环向量的一个重要性质，最后提出了弱超循环算子和弱超循环向量的概念，并且给出了I~1空间中弱超循环性与超循环性的等价性。

May be of this nature, but not J and E. Hence any theory on the literary method and character of either is forced to admit so many exceptions as to vitiate the fundamental assumption.

可能是这种性质的，但不是J和大肠杆菌因此任何理论对文学的方法和性质要么是被迫承认如此众多的例外，以损害基本假设。

Characteristics of preparation and separation, and some other technological features were further studied. It concluded that vitrain is low in density and in HGI. It is rich in lighter and corser parts of the coals.

然后，进行了各煤岩组分的工业分析、元素分析、密度测定、HGI测定、表面基团测定、表面电位测定、润湿热分析、比表面积和孔经测定，进而深入研究了其分选性质和其他工艺性质。

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。