查询词典 diversity factor

Sympegma regelii community, a rangeland desert vegetation, has the highest Shannon-Winner species diversity indices (1.706); the communities of Haloxylon ammodendron and Ephedra przewalskii, which have obvious feature of desert vegetation, are in the middle in species diversity indices (0.875-0.890); the communities of Calligonum mongolicum, Populus euphratica, Tamarix ramosissima and Glycyrrhiza inflata, characterized by desert forest of which saline desert bushes and saline meadows are scattered in the communities, have lowest value of the species diversity indices (0.079-0.495). 3 The structure of desert plant community is dominated by the bush layer. The species diversity indices of bush layer (0.769-1.451) is much higher than that of herb layer (0.193-0.254), and the diversity in herb layer is strongly influenced by bush layer. 4 The species diversity of desert plant communities shows a gradient of change with respect to longitude, latitude and elevation. For example, rangeland plant Sympegma regelii, with a high level of diversity indices (1.706), is in transition to desert plants Haloxylon ammodendronn community (with a low level of diversity indices of 1.379) in a longitude gradient and to saline Tamarix ramosessima community (with a low level of diversity indices of 0.376) in a latitude gradient. Calligonum mongolicum community, with a low level of species diversity (0.819), is in transition to Ephedra przewalskii (with a low level of diversity indices of 0.890) and Haloxylon ammondendron community (with the diversity indices of 0.645) in an elevational gradient.

群落Shannon-Wiener物种多样性水平表现为合头草群落最高(1.706)，具有草原化荒漠植被类型的成分；梭梭群落、膜果麻黄群落居中(0.875~0.890)，荒漠植被类型特征明显；沙拐枣群落、胡杨群落、多枝柽柳群落、胀果甘草群落较低(0.079~0.495)，荒漠林、盐地沙生灌丛及盐化草甸植被均有零星分布。3荒漠植物群落结构层次中，灌木层占居主导地位，群落灌木层物种多样性水平(0.769~1.451)远远大于草本层(0.193~0.254)，且草本层物种多样性受灌木层影响较大。4荒漠植物群落物种多样性分布格局表现为经向、纬向和海拔梯度的变化，经向、纬向变化为物种多样性水平较高的草原化植物合头草群落(1.076)向物种多样性水平较低的荒漠植物梭梭群落(1.379)和盐化植物多枝柽柳群落(0.376)的过渡，海拔梯度则呈现低水平的沙拐枣群落(0.819)到高水平的膜果麻黄群落(0.890)向低水平的梭梭群落(0.645)变化。

The results showed:①the communities that stipa baicalensis is edificator had the highest species diversity, and the idea that stipa baicalensis communities were the local zone vegetation was supported;②the majority of studied communities were unsaturated in the species diversity, and the species diversity had a tendency to increate with the improvement of soil environment;③the relation of species diversity to community productivity was a one-humped function, that is, the species diversity of mediation productivity was highest;④the species diversity under intermediate disturbance was highest, and the intermediate disturbance hypothesis was supported;⑤the content of potassium in soil had probably an important function, or was an important following factor in the types of grassland community;⑥a new hypothesis on the forming mechanism of species diversity of community, Small Scale Competition and Random-Patch Dynamic Hypothesis, was put forward boldly.

通过上述研究分析得出如下结果：①以贝加尔针茅为建群种的群落物种多样性最高，从物种多样性角度证明该群落类型最适应本区气候和环境条件，应是本区的地带性群落；②绝大多数群落的物种多样性处于未饱和状态，随土壤环境的改善呈明显的增加趋势；③物种多样性与群落生产力呈单峰函数关系，即在中等生产力水平时物种多样性最高；④放牧中等干扰水平物种多样性最高，支持Connell的中度干扰学说；⑤偶然发现土壤钾含量可能在草地植被类型分化中起到重要作用，至少是一个重要的伴随因子；⑥大胆提出了群落物种多样性构成机制的新学说即小尺度竞争随机斑块动态学说。

This study deals with butterfly diversity and conservation of rare as well as insect fauna species in Baishuijiang Natural Reserve in Gansu Province. The research includes field investigation, observation at certain time and places, captive breeding in experimental area etc. Butterfly species diversity in Baishuijiang Natural Reserve and variation regulation of butterfly diversity in different areas are studied. The relationof butterfly diversity with environmental factors such as vegetation destruction, human disturbance are strenthened in Bifeng Gully. The biology of two rare butterfly species is studied. Meanwhile, this study deals with insect α-diversity and β-diversity in Baishuijiang Natural Reserve and inquire into the mechanisms of ecological control by protecting and recovering vegetation. The research includes field capture with sweeping net, light trap, transect investigation.

在甘肃省白水江自然保护区碧峰沟通过野外调查、定点定时观察、实验地饲养等研究了白水江自然保护区两种珍稀蝴蝶红基美凤蝶和巴黎碧凤蝶的生物学特性，在保护区范围内通过网捕采集研究了蝶类物种多样性和不同区域内蝶类多样性的变化规律；同时在碧峰沟四种不同生境中通过灯诱获得标本，研究了该地区不同生境中的昆虫种类组成及其多样性，分析了决定物种丰富度的关键因子，与蝶类多样性进行了比较分析，并提出了具体的保护措施。

The concepts of the measure of diversity, the least increment diversity and the finite coefficient of diversity are applied to predict subcellular location of a protein according to the characteristics of statistical results and the properties of the measure of diversity that can reveal total information of system. The proteins subcellular locations are predicted by using of the least increment of diversity with the data standardized transformation. In addition, the formulas for evaluating the performance of the prediction results are given.

针对统计结果的特点和离散量反映系统整体信息的性质，将离散量、离散增量和离散有限系数等概念应用于预测蛋白质的亚细胞定位，对数据作标准化变换后用离散量理论方法预测蛋白质亚细胞定位，最后给出预测结果优劣的评价公式。

Common buckwheat ( F. esculentum ) is an allogamy crop, which is heterogony. There is heterogeneity in the species. To reveal the genetic diversity within cultivar population, In order to explore the sampling strategy that can reveal genetic diversity of buckwheat resources on the molecular level. PCR with intron-splice junction primers and long random primers was employed to reveal the genetic diversity within nine common buckwheat varieties and one tartary buckwheat cultivar population among different individuals. We established the sampling strategy in its genetic diversity study. Then we used the established sampling strategy, and the same PCR markers technique,to analysis the genetic diversity of 86 common buckwheat resources, the main results are as follows

甜荞是花柱异长自交不亲和的异花授粉作物，品种内存在一定的异质性，为了准确揭示甜荞遗传资源的遗传多样性，本研究采用因子分析法对86份甜荞遗传资源农艺性状数据进行分析；采用长随机引物和内含子切接点引物的PCR分子标记技术，对9个甜荞品种和1个苦荞品种不同个体间的遗传多样性进行了分析，建立了甜荞资源遗传多样性研究的取样策略；并利用建立的取样策略，采用PCR标记技术，对这86份甜荞资源的遗传多样性进行了分析，取得如下主要结果

Farther apply FactorAnalysis, principle of pick-up is latent root＞1, using Varemax and Equamax to rotatefactor. We get 10 factors, combined with medical knowledge, based above result,clinical manifestation of sub-health status can split into 7 types, such as typesociety(Factor 6), type psychology(Factor 1), type fatigue(Factor 3,Factor 4,Factor 9),type discomfort of eye and mouth(Factor 7), type abnormity of stool and urine(Factor2), type menoxenia(Factor 5) and type consticution(Factor 8 and Fator 10). Thisprovide basis for classification, prevention and cure of sub-health status.

进一步应用因子分析，以特征根大于1为公因子提取原则，应用最大方差正交旋转法进行因子旋转，共得到十个共因子，结合医学知识，根据上述结果亚健康状态的临床表现可分为社会型(公因子6)、心理型(公因子1)、疲劳型公因子3、公因子4(来源：23ABC论文网www.abclunwen.com和公因子9、眼口不适型(公因子7)、二便异常型(公因子2)、月经不调型(公因子5)以及体质型(公因子8和公因子10)等七个亚型。

This article is based on the writer's teaching of years, using the research production of the diversity. Combing our country's features, the writer tries to perfect the diversity factor in the system of class teaching, do some microcosimic research about teaching strategy and teaching mode in the field of teaching designing and provide a substantial and practical """"""""diversity teaching mode"""""""" and """"""""diversity teaching strategy"""""""" as well as clarifying some opinions.""""""""

本文在笔者多年的教学实践的基础上，借鉴国内外对教学差异中差异因素的研究成果，结合我国的具体特点，试图逐步完善班级授课制下差异因素的研究，并在教学设计领域中针对教学策略和教学模式进行微观具体的研究，从而阐发自己的一些观点并提出一种具有实效性、可行性的"差异教学"模式及"差异教学"策略。

The paper to analyzes because experiments "factor contribution rate".to conduct the research;Discovered "the pure factor from difference square" for the negative value is the statistic stochastic value result;When the factor function is not extremely remarkable,the factor contribution rate also is a negative value;By now should merge not the remarkable factor square the random error square,recomputation ANOVA as well as factor technical progress factor.

论文对析因试验中用于分析因子作用的"因子贡献率"进行研究；发现"纯因子离差平方和"为负值其实是统计量随机取值的必然结果；尤其当因子作用极不显著时，计算的因子贡献率常常也是负值；这时应该将不显著的因子平方和并入随机误差平方和，重新进行ANOVA以及计算因子贡献率。

In this paper, a self-edited anxiety inf luencing-factor inventory was used as its' reliability and validity was confirmed. Adopting factor analysis, this paper discussed the influence factors to the sports anxiety of the football players and reveal the reason of the their different anxiety level, the result showers that training factor 、 self factor、 psychology factor 、 others- influence factor and education factor have a significance influence to the anxiety level of the players, and which will benefit to the players selection and sport anxiety control.

本文采用个人自编焦虑影响因素问卷，在确保其良好的信度与效度基础上，采用因子分析法，对足球运动员运动焦虑的影响因素进行了探讨，揭示了不同被试运动焦虑水平差异的内部原因，研究表明：训练因子、自我因子、心理因子、他人影响因子以及教育因子对研究对象的焦虑水平起着非常显著的影响，这在一定程度上为运动选材和运动焦虑水平的控制提供了理论参考。

Then, we acquired more scattering data by utilizing diversity techniques. Diversity techniques can be divided into angular diversity and frequency diversity.

最后我们把散射资料填补到傅氏空间，经由二维线性内插法和二维逆向傅立叶转换后，我们就可以得到影像的重建。

More direct, directer ; most direct, directest

径直的，笔直的

Do you know how to use a chain saw?

你知道如何使用链锯吗？