比例分布
- 与 比例分布 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
The syndrome differentiation type distributing of ER negative and PR negative breast cancer and triple negative breast cancer is equipotent,The difference has no statistics meaning through chi-sguare(X2) test.
其中≤39岁组病人有病无证型病人所占比例最大,40~59岁病人有364例,其各证型的分布规律与总体样本(551例)病人分布差异不大,≥60岁病人中脾肾两虚型与肝肾阴虚型病人所占比例较大。
-
It was obvious that there is a thermal gradient between Central Business District and the countryside.In terms of the spatial pattern of the land brightness temperature,the most extensive UHI was distributed in Hankou,Hanyang and Wuchang.Urban heat islands distribution in Dongxi Lake,Caidian,Hannan and Jiangxia was scattered with some little heat islands.③ Interspersion and Juxtaposition Index and Percentage of like Adjacencies and Largest Patch Index were the most important factors that influence the land surface temperature.
结果表明武汉市土地利用类型的空间格局分布指数与地表温度有较好的相关性,其中地表温度与散布与并列指数、同类斑块相邻百分数指数和最大斑块所占景观面积比例指数的灰色关联度较高,说明地表温度的分布不仅受到各类型斑块与其它斑块相邻情况的影响较大,还受到最大斑块所占的总土地面积比例的影响。
-
In order to reduce calculation error, the frequency distribution of average values is used to compute the mixed distribution's digital features of each component distribution, thereinto, the number of the component distribution is determined by AIC, choose the number that meets the minimum value of AIC as the component number of mixed distribution, and the other parameters are estimated by EM algorithm; Secondly, because each component distribution is corresponding to a kind of major gene genotype, according to the values of the average and variance of the each component distribution, we can use the limit error of the normal distribution to plot each individual into the correspondent component distribution, namely into correspondent major gene genotype. Then we regard each major gene genotype as a treatment level of one-way analysis of variances, and the one-way multivariate analysis of variance is carried out to calculate the covariance matrix of major gene effect, covariance matrix of polygene effect, covariance matrix of environment effect and so on; At last, combining the weights of the each component distribution of mixed distribution, we can calculate the variance of major gene effect, the variance of polygene effect, environmental variance and the genetic gain of the quantitative trait.
为减小计算误差,本研究采用均值的频数分布来计算各成分分布的数字特征,其中成分分布个数根据AIC准则,选择使AIC值达到最小的成分分布个数作为混合分布的成分分布数,分布中其它参数的确定利用EM算法来估计;其次,每个成分分布对应一种主基因基因型,根据各个成分分布的均值和方差,利用正态分布的极限误差将每个个体划分到相应的成分分布中,即相应的主基因基因型中,将每种主基因型作为单因素方差分析的一个处理水平,对其进行单因素的多元方差分析,分别计算主基因效应协方差阵、多基因效应协方差阵、环境协方差阵等参数;最后结合混合分布中各成分分布的权重即各主基因基因型的分离比例,计算主基因效应方差,多基因效应方差和环境方差,以及遗传力等参数,进而计算该数量性状的遗传进展。
-
In 2000,the area below 400 meters was also watershed,mining sites and settlements,the proportion of both unutilized land below 400 meters and woodland between 400 meters and 800 meters raised a little,it showed that most woodland transform into the other types of land use in low altitude area,however,most unutilized land and the other types of land use transform into woodland in low and mediad altitude area,and the changes in woodland had metastatic trends in low and middle altitude area in the years from 1988 to 2000.The area proportion between 400 meters and 800 meters raised a lot in mining sites and settlements,the total distributed area on woodland had a trend of rising,while the distribution in pasture had a trend of decreasing.
在2000年,400m区域以下依然是水域和居民点及工矿用地,未利用地比例在400m以下有所上升而林地比例在400m~800m有所上升,表明在1994年至2000年间,低海拔地区许多林地转化为其他土地利用类型,而在中低海拔地区大量的未利用地和其他土地利用类型转化为林地,林地的变化有向中低海拔转移的趋势。2006年居民点及工矿用地在400m至800m区域面积比例增加,林地类型分布区域整体呈上升的趋势,草地分布区域呈下降的趋势。
-
The percent of Cosmopolitan genus increase along with the elevation, but the trend is contrary to that of the pteridophyte genus.
在垂直梯度上:种子植物属热带分布诸类的比例自海拔400至800米(~1100米)之间呈上升趋势,然后下降;温带分布的第8、9、10、11类随海拔而上升;地中海—中亚中心分布的第12、13类只见于比较干热的河谷地带;东亚分布和中国特有属在海拔900~1100m和1600~1800m段取得小的峰值;世界分布属的比例随海拔而上升,蕨类植物属则相反。
-
Kaizuca, Camellia japonica L.,Ginkgo biloba L., Celtis sinensis Pers., Zelkova schneideriana Hand.-Mazz., Acer truncatum Bunge, Albizia julibrissin Durazz., Ailanthus altissima Swingle, Cerasus serrulataG.,Pistacia chinensis Bunge, Euonymas japonicus Thunb.Sabina konarovii Chent at W.T.Wang, Sabina chinensis cv.Pfitzeriana. 3.Tree planning on urban forestry construction of Qingdao city is based on trees investigation,analyses, appraise and under the guidance of the theories on city ecology, ecological landscape, scenic aesthetics, city planning and etc.
青岛市城市森林建设的树种近自然化规划:树种布局规划应以树种调查、分析、评价为基础,以城市生态学、生态园林学、风景美学、城市规划学等理论为指导,并综合青岛市所在植被分布自然规律和城市森林建设现状,因地制宜的确定城市树种的主要比例关系:常绿树与落叶树的比例以3:7为宜;乔木与灌木的比例以2:1为宜;针叶树与阔叶树的比例以1:4为宜;木本植物与草本植物之比1:4;速生树与慢生树的比例以1:1为宜。
-
Based on the charge transaction data of ETC system, this paper analyzed the original data and determined the data processing flow of ETC Data. Then, it proposed the travel speed calculation model of freeway, the traffic flow distribution analysis method, the information mining techniques of OD distribution, vehicle type proportion in different toll gate, and so on.
本文以电子不停车收费的交易数据为基础,通过对原始交易数据的分析,确定了数据的处理流程,在此基础上,提出了路段行程速度计算模型,交通流量分布规律分析方法和高速公路站点OD分布、车型比例分布等指标获取方法。
-
Thirdly, not only are the evaluative functions of all kinds of evaluation resources analyzed in context, but also the frequencies and proportions of values belonging to various subcategories within the appraisal system are calculated with the help of corpus software (WordSmith 4.0), and these data are tentatively interpreted by referring to contextual information and the communicative goal of this genre.
第三,除了在语境中分析各种评价资源发挥的具体评价功能,还借助语料库软件(WordSmith 4.0)计算出评价系统中各个子类的使用频率和比例分布,并进一步结合语境和该语类的交际目的对这些数据进行解读。
-
The 134 genera of vascular plants had 14 areal-types, including 42 cosmopolitans 55 temperate types 30 tropic types 2 Mediterranean-types, 2 East Asia types and 1 endemic species. The cosmopolitan and temperate type accounted for 31.34% and 41.04% of all the genera, respectively revealing the azonal feature of the wetland vegetations and the influences of cold and wet climate on the formation and distribution of the vegetations.
维管束植物属有14个地理分布区类型,包括世界分布属42属、温带分布属55属、热带分布属30属、古地中海属2属、东亚分布属4属、中国特有分布属1属,其中世界分布属和温带分布属分别占区系维管束植物总属数的比例较高,分别为31.34%和41.04%反映了湿地植被的隐域性和冷湿气候对湿地植被发育、分布的影响。
-
Flooding,as a kind of disturbance events,occurred with higher and higherfrequency over the world.To investigate the effects of flooding disturbance ongrassland vegetation and the soil,a comparatively thorough study was conducted onAneurolepidium chinense grassland in Songnen plain,Northeast China.The studysite was located in Sanjiadian National Rangeland in the territory of Da'an city,Jilirprovince,which was partly flooded in 1998.On the study site,Several transectssubjected to different flooding durations and intensities were designed for thecomparative study among them on such aspects as vegetation characteristics,seedbanks,vegetative propagation of rhizomatous plants,distribution patterns ofpopulations,interspecific relations,and physio-chemical properties of soil.Theresults were as follows:(1)Of the functional group composition of the vegetation,with the elongation of the flooding duration or the increase of flooding severity,theratio of hygric and hygro-mesic plants increase,while that of mesic and mesoxericplants decrease,of Therophytes changed unimodally,of Geophytes increased,whileof Hemicryptophytes decreased.
为弄清草地植被及其土壤环境对水淹干扰的响应,在松嫩平原羊草草地1998年部分遭受水淹的吉林省大安市三家甸子草场内设置了经历不同水淹干扰持续时间和不同水淹强度的样带,并在这些样带之间从植被特征、种子库特征、根茎植物的营养繁殖性能、种群分布格局、种间关系及土壤的理化性质等多个方面展开对比研究,主要结果如下:(1)在植被的功能群组成中,随干扰强度的增加和水淹干扰持续时间的延长,湿生、湿中生类植物功能群的优势度比例基本上是逐渐增加的,中生、中旱生类植物功能群的优势度比例则逐渐减小,而一年生植物的优势度比例呈单峰型变化,地下芽植物比例增加,地面芽植物比例减小。
- 推荐网络例句
-
Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).
呼气,收缩臀部肌肉;拱起身体,尽量抬起头来,右腿伸直朝向天花板(膝微屈,以避免肌肉紧张)。
-
The cost of moving grain food products was unchanged from May, but year over year are up 8%.
粮食产品的运输费用与5月份相比没有变化,但却比去年同期高8%。
-
However, to get a true quote, you will need to provide detailed personal and financial information.
然而,要让一个真正的引用,你需要提供详细的个人和财务信息。