总体值
- 与 总体值 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
The object of projectile design is analyzed, and the layer-TOPSIS method is provided for the evaluation of total effectiveness by taking the layer concept into the TOPSIS method. In the calculation of object weights, the grade calculation method is suggested, which has less dependence on the subjectivity of decision-maker and can take account of both sensitivity and allowableness of objects, the geometric-arithmetic method is provided for grade weight calculation and methods for sensitive weight and allowable weight are given. Of modes in system analyzing, the penetration model of target with spherical-fragment is carried out based on the theory of Dynamic Spherical Cavity Expansion, and it is a supplement of the models for calculation the damage of the fragmentation warhead to target.
对弹丸设计进行了目标分析;通过在TOPSIS方法中引入层次结构的概念,提出了适用于弹丸总体效能评价的层次TOPSIS评价方法;在指标权重计算中,提出了对决策者主观依赖较少的能反映指标的敏感性和相容性的分级权重计算方法;在分级权重计算中,分别给出了等比-等差权值计算方法和敏感-相容权值计算方法;在系统分析的模型中,对破片战斗部的威力计算中的模型进行了补充,在空穴膨胀理论的基础上提出了球形破片侵彻有限厚靶板的侵彻计算模型。
-
There are mainly four innovations made in this thesis: By introducing the notion"collectively compact operator sequence"into the study of composition operators, we give a sufficient and necessary condition on generalized Nevanlinna counting functions of the inducing maps for {C〓} to be collectively compact, extend some previous results and enrich the content of the study of composition operators.
本文主要在以下几个方面有所创新:第一,把逼近论中的算子序列总体紧性的概念引入到复合算子理论的研究中来,并通过值分布理论中的广义Nevanlinna计数函数给出了Hardy空间与加权Bergman空间之间的复合算子序列的总体紧性的刻画,从而推广了Shapiro的结果,丰富了复合算子理论的内容。
-
This research was conducted in degraded rangeland at the southwestern edge of the Mu Us sandland, Yanchi county, Ningxia, the soil seedbank features and its relation to vegetation was analyzed using similarity analysis and ordination method, the results show that seeds within soil distribute mainly in 0~5 cm soil layer, less seeds in 6~15 cm soil layer in exclosed and non-exclosed rangeland, for seeds in exclosed soil, species richness and diversity index H are higher, while D is lower, exclosure measure, generally speaking, can increase plant species and amount of vegetation and seeds in soil, some annual plants, mesophytes and halophytes appears in the soil or surface.
以毛乌素沙地西南缘宁夏盐池县的退化草场为研究对象,采用相似性分析和排序方法对封育和未封育草场土壤种子库的特征及其与地上植被间关系进行了研究,结果表明无论封育区还是未封育区,土壤种子库中的种子主要分布于0~5cm的土层,6~15cm土层的种子数很少;封育区土壤种子库的物种丰富度大于未封育区,物种多样性则表现为H 值较大,而D值较小,总体上看封育措施可以提高地上植被和土壤中种子的种类和数量,一些一年生植物、中生植物和盐生植物开始出现在地面或土壤种子库中。
-
An extremely high temperature of anode humidification is also unreasonable; as a result, when the current density is high, the liquid water should be injected directly into anode gas channel to guarantee both high inlet H〓 concentration and well-humidified membrane. 4. The utilization of Pt in the cathode catalyst layer will decrease with the increasing current density; as a result, based on the principle of maximal Pt utilization, the catalyst layer can be designed much thinner or not uniformly in the catalyst distribution.
而在此截面上,交指型流场燃料电池阳极侧的液态水饱和度的极值位置并不确定;在电池阴极处,液态水饱和度的极值总是出现在z=0.002m处的气体扩散层和膜的界面上,并且该处的液态水饱和度沿x方向存在一个最大值,与此相应的氧气的质量浓度分数在该处达到极小值,因此极限电流密度将首相出现该处,但总体来说液态水饱和度沿x方向的分布较为均匀。4。
-
In this study adopting the inverse distance weighted to deal with the rain gauge by interpolation, obtaining the rain capacity in every quarter in Minjiang watershed. Kriging interpolation was employed to get the spatial date base of temperature factor and the overall precision reached 95% by external module examination.
2本研究以反距离权重插值法对降雨线的进行内插处理,获取闽江流域各季度的降雨量,温度因子栅格空间数据库采用泛克里格插值获得,经模外检验精度较高,总体精度都达到95%以上。
-
Content characteristics of five kinds of detrimental elements,As,Cr,Cd,Pb,S,in iron ores imported from 23 countries,totally 490 batches,within recent two years were investigated by statistical techniques.Based on data distribution, interquantile robust statistics,and a brand-new data description technique,kernel density estimation,were used to acquire the standing values of detrimental elements.Multivariate statistical methods,including Principle Component Analysis and Factor Analysis,were used to ...
对我国进口铁矿石中的环境有害元素As、Cr、Cd、Pb、S的含量进行了总体统计分析,选用了四分位稳健统计分析及内核密度估计分别对铁矿中的有害元素As、Cr、Cd、Pb、S的含量的代表值进行估计,探讨了两种方法在代表值估计方面的特点,并使用主成分分析、因子分析等多元统计分析方法对有害元素的含量特征进行整体分类描述,确定了含量特征整体分类的主要有害元素,全面了解进口铁矿中涉及安全、环保等有害元素的质量状况。
-
RESULTS The SOD activity had linear correlation with pH in the range of pH 2.2-8.0 when SOD concentration was fixed. The varication of activity after ultrosonication had linear correlcation with fluoresent intensity at 340 nm. With increase of uhtrosonic frequency, the microenviroment of tyrosine and tryptophan inside the SOD molecule was changed, then the balance of hydrophokicity and hydrophilicity inside the molecule was broken, this induced the blue shift of synchronous spectrum band and decrease of SOD activity.
结果 SOD浓度一定、pH2.2~8.0时,活性与其线性相关,超声后活性差值与340 nm荧光强度差值的线性相关;随着超声次数的增加,蛋白质SOD分子内部的酪氨酸、色氨酸所处的微环境被扰动,打破了分子内部的疏水和亲水平衡,使蛋白质的活性降低,在荧光检测中观察到普通荧光谱带蓝移,同步荧光的荧光峰位总体呈现峰位蓝移和强度下降。
-
To achieve the program of finite element, which apply to the two-dimensional temperature distribution of high power laserAccording to the diathermanous principles and the thoughts of finite element, the temperature distribution of the chip and the submount of high-power laser were simulated in the work.
2实现了适用于大功率半导体激光器二维温度场的有限元程序根据传热学的基本原理和有限单元的思想对大功率半导体激光器的芯片和载体的温度场进行计算机模拟了,最终求解出了总体温度刚度矩阵K_总和总体边界条件矩阵P_总,进而求解出各个节点的温度值T。
-
Methods: Collect the English and Chinese investigation literature for pancreatic gland primarily occupation which were published and cited by MEDLINE and the core Chinese academic journals, with pathologic diagnosis. We collected 21 piece of writing, and reconsolidate these literatures, calculate the sensitivity, specificity, degree of accuracy, positive predictive value and negative predictive value, and 95% confidence interval.
收集自1994年以来PET应用公开发表的能被MEDLINE引用或中国科技核心期刊的中英文胰腺原发占位研究文献,要求这些研究文献需有病理诊断结果,共收集到21篇,将文献重新合并,按国内、国外以及总体合并计算其灵敏度、特异度、准确度、阳性预测值和阴性预测值,并计算其95%可信区间。
-
This paper puts forward and describes in detail a set of methods to quantize the vector C in the efficiency of air defense missile weapon system, and quantizes the general system efficiencies of some missile systems.
针对当前分析人员难于求解防空导弹武器系统总体效能值,提出了一套量化系统效能中的系统能力向量C的方法。对该方法作了详细的论述,并用该方法量度了一些防空导弹武器系统的总体系统效能。
- 推荐网络例句
-
With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.
随着死亡的吉他手Schuldiner接受主唱的职务,乐队在现实中树立了重要的影响。
-
But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.
不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐,因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。
-
Closes the eye, the deep breathing, all no longer are the dreams as if......
关闭眼睛,深呼吸,一切不再是梦想,犹如。。。。。。