查询词典 Shannon

The H value was calculated to be 0.246 using Shannon-Wiener diversity index method.By aquatic reservoir evaluation criteria, combined with the type and density of zooplankton,it could be clearly determined that the water quality was seriously polluted and eutrophic.4.Comprehensive assessment of water quality:Affected by the influxion of sewage, slow flow velocity,high contents of nitrogen and phosphorus,the quantities of both zooplankton and phytoplankton at 1st point were relatively high,with the appearance of various indicator species of water pollution.

计算Shannon-Wiener多样性指数法得出H值为0.246，通过水库水生生物评价标准，结合浮游动物种类和密度，可以很清楚判定水质为污染严重，已经呈富营养化。4水质综合评价：排污口1号采样点受生活污水的大量排入的影响，且水流流速缓慢，水中氮磷含量高，因而浮游动物和浮游藻类数量都很高，而且出现很多污染生物指示种，综合分析该水层水质属污染严重的富营养化。

Today you will drive through the forest region in Western Australia and get to Shannon National Park for visiting the ancient Karri trees and Jarrah trees. These tall, thick and majestic trees are comparable with Californian Redwood trees.

今天，您将开车穿过西澳的森林地区，到胜嫩国家公园 Shannon National Park 去参观原始卡里树和丁戈树，这些粗壮、雄伟的大树足以和加利福尼亚州的红木树媲美。

Since the species quantity at the shrub, herb and liane in D is more than that in C, The Shannon-Wiener index and the species' evenness showed that human-caused disturbance affected much more to the species at upper communities and the tall trees were not recovered entirely in D.

群落各层次的Shannon-Wiener指数及其均匀度计算表明，人为干扰对群落上层物种多样性影响较大，D群落高大乔木待恢复。D群落经过多年封山育林，由于种类入侵和竞争，正在形成物种更为丰富的当地典型地带性植被类型。

The Shannon-Weaver and Simpson indexes is 4.195 and 0.021 respectively,the evenness is 0.880 and 2.962.The species-abundance relationship fits logarithmic series distribution.

结果表明海南岛吊罗山山地雨林物种多样性指数Shannon-Weaver和Simpson指数分别为4.195和0.021，均匀度为0.880和2.962。

In chapter 1,Shannon's entropy and principle of maximum entropy is introduced into matrix games.

本文将信息论中的Shannon熵和决策分析中的极大熵准则引进博弈论，形成了一种新的博弈体系，并研究了这种博弈体系在经济管理科学上的应用。

Shannon index showed biggest variations of populations was mignonette leaf on wulimu grass .

从shannon指数来看，群体变异程度最大的是五里木灰绿色羊草。

Using the Shannon-Wiener's niche breadth index and the Pianka's niche overlaps index, we found that the Nereis japonica, nemerteans and eelworms had broad niche breadths (above 2.80); the niche overlaps among them was high (above 0.90) in the quantitative analysis on the 21 species present in the quantitative sample analysis.

对定量取样中获得的21个物种以Shannon-Wiener指数为基础进行了生态位宽度测定，以Pianka重叠指数为基础进行了生态位重叠值分析，结果表明日本沙蚕、纽虫和线虫的生态位较宽，均为2.80以上，它们之间的生态重叠值也较高，均为0.90以上。

At last,we extend the Shannon-McMillan theorem to the nonhomogeneous Markov chain fields.

最后我们将Shannon-McMillan定理推广到非齐次马氏链场的情形。

Podocarpus nagi are the least.(5) Comparing the plant communities from different latitudes, it shows that the rule of community species diversity and community tree layer diversity index change as the latitude changes according with Wlater and Whittakers conclusion about Shannon-Wiener index decrease as latitude increase.

5与不同纬度的植物群落的比较结果表明：群落物种多样性和群落乔木层多样性指数随纬度的变化规律符合Wlater和Whittaker关于Shannon－Wiener指数随着纬度的升高而降低的结论，即与群落物种多样性的纬度趋势一致。

Chapter 4 gives an iterative maximum entropy rcgularization reconstruction method using the generalized Shannon entropy as the regularizer.

第四章中论述了使用广义Shannon熵作为正则化函数的迭代最大熵重建方法。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。