查询词典 fluctuation

A charge conservation statistics enhancement method used in semicon ductor divice Monte Carlo simulation is approached, which smoothes the charge fluctuation caused by the statistics enhancement, and keeps the continuation of cross edge charge flow.

摘要介绍了一种在半导体器件蒙特卡罗模拟中保持电荷守恒的统计增强方法，该方法消除了由统计增强引入的电荷统计涨落，保持了不同增强区界面处过界粒子流的连续性。

In order to reveal how annuals adapt to stochastic fluctuation environment of dune stabilization plantation area at Shapotou, we took Eragrostis poaaeoides as case study on seed germination, population dynamics, population spatial distribution pattern and competition adjustment.

本文以小画眉草为例，从种子萌发、种群动态、种群空间分布格局和竞争调节等方面研究了一年生植物对随机环境的适应对策。

Eustatic sea level change; fluctuation of sea level

由于热膨胀、冰盖在温暖条件下的消融或在寒冷条件下的扩张而引起的相对海平面的长期变化。

A precondition was that the stand diameter grew 2 cm every year. For Evodia meliaefolia community, in the competitive living space by close cover stand, the ratio remained low for ten years with little fluctuation. However, in the unlimited open space, the ratio reached two peak values, with the first appearing in the eighth year, and the second in the eleventh year.

在假设了楝叶吴茱萸和油茶每年胸径生长2 cm的前提下，楝叶吴茱萸冠层总面积变化规律是：在郁闭林分被抑制的生长空间里，楝叶吴茱萸冠层总面积扩散速率可以长达10多年基本维持在一个很低的水平下，而且基本没有太大的变化；在获得充分开阔的生长空间里，楝叶吴茱萸冠层总面积扩散速率出现两个增长高峰，一个出现在第八年，一个出现在第十一年。

ABSTRACT This dissertation is a explorative study of the law of exchange rate fluctuation by applying nonlinear economic theory.

本论文是运用非线性经济学的理论与方法对汇率波动规律的探索性研究。

The theory model of WBC has been proved by econometric model or data, and the synchronization between world economy and China has also been studied, which is taken as a developing country. The bi-fluctuation of China economy is the same as world economy, and China has been fringing by world.

通过统计数据对理论模型进行了计量检验，并讨论了作为发展中国家的中国与&世界&经济的协同性和非协同性，不仅发现中国经济的二阶波动具有世界经济的相同特征，还发现中国越来越被世界&边缘化&。

Taking for example the salt rhythms of the Qianjiang Formation in the Qianjiang Sag of the Jianghan Basin (which is a typical Paleogene saline lacustrine basin in eastern China), through a detailed study on cores, the authors have determined for the first time the Ⅳ-order salt rhythm based on Ⅰ-,Ⅱ-and Ⅲ-order salt rhythms which were determined previously and got to know that the sedimentary process following the sequence of desalinizing→salinizing and crystallization of salt minerals from halite rock→(mud-bearing) glauberite rock→dolomite-bearing mudstone (mud-bearing doloston)→mudstone→doloston→glauberite rock→halite rock. The authors also analyzed the Ⅳ-order salt rhythm and the correspondence between its sedimentary records and the fluctuation of the palaeosalinity of waters and the short-scale (0.05~1.0 ka duration) change of dry-moist palaeoclimate.

本文以我国东部独具特色的古近纪古盐湖盆地－江汉盆地的潜江凹陷潜江组盐韵律为例，通过对王平1、王云10-6、王80-2等3口井连续取心段的精细研究，在前人划分Ⅰ、Ⅱ、Ⅲ级盐韵律的基础上，首次划分出组成含盐层系基础韵律单元－Ⅳ级盐韵律，弄清了它的沉积过程基本遵循从石盐岩→钙芒硝岩→含白云石泥岩→泥岩→白云岩→钙芒硝岩→石盐岩的淡化－咸化序列和盐类矿物的析出顺序；解析了Ⅳ级盐韵律及其沉积组合记录与水体古盐度波动和短尺度(0.05~1.0 ka)古气候干湿变化之间的对应关系。

Objective To study the influence of season, temperature and humidity to the seasonal fluctuation of Haemaphysalis bispinosa.

目的 探讨季节、气温、湿度的变化对二棘血蜱季节消长的影响。

Portal vein pressure, size of spleen the collateral circulation of portal vein and the fluctuation of hematocyte counts were measured and recorded at the preconcerted time.

实验犬25只，随机分为A组(正常组，n=5)、B组(对照组，n=10)、C组(实验组，n=10)。A组仅予以剖腹探查，B组予以门静脉主干部分结扎建立模型，C组则通过门静脉主干部分结扎附加3周后脾静脉缩窄及其属支结扎的方法建立模型，建模后术前及术后每周动态观察两组动物血象的变化，B、C组在预定时间点(术后第5、第9周)分别随机选择5只动物开腹观测门静脉自由压、脾脏大小、门体侧支循环形成情况，并切取脾脏行组织病理学检查，此外，术前及术后预定时间点了解骨髓增生情况变化。

Using the autocorrelation function, the principal of homodyne method is explored. The relationship between delay time induced by delay fiber and characteristics of additive frequency-domain fluctuation affixed on homodyne beat noise photoelectric-current spectrum are intensively analyzed.

一、利用自相关函数研究了零拍法测量激光线宽的原理，重点考察了零拍光电流谱线上所附加的频域周期性波动，确定了该波动的频域周期与光纤延时线所产生的时延成反比。

Aquatic or marsh-growing fern allies; known to have existed since the Cenozoic; sometimes included in Lycopodiales.

生活于水中或湿地的蕨类；从新生代生存至今；有时归于石松目之中。

The engine was uprated from a 90hp Franklin to a 125hp Lycoming.

改良过的引擎是从90hp到125hp莱康明富兰克林。