查询词典 heterogeneity

According to the result, the confidence region of unknown parameters in single-index models is constructed. Finally, we consider the test of correlation and heterogeneity for hierarchical nonlinear mixed-effects models. According to Laplace approximation expansion of integrated log-quasilikelihood, a class of score test statistics is proposed. Under some very mild conditions, we prove the asymptotic distribution of the test statistics is a standard X~2-distribution. Through a Monte Carlo simulation study, the finite sample performance is examined.

最后，我们研究的第四个问题是分层非线性随机混合效应模型的相关性与异方差性检验问题，依据对数拟积分似然的Laplace近似展开提出了检验统计量，在一些正则条件下，得到了检验统计量的渐近分布是一个标准的χ~2-(来源：d7d7A65BC论文网www.abclunwen.com)分布，通过Monte Carlo模拟研究了其小样本的表现，实例验证了其实际应用。

According to the VESs analysis, the intrinsic brittleness of Fe〓Al is due to less lattice electrons, bondcomplex distribution heterogeneity, hydrogen-induced embrittlement, and the difficulty in recovery of the lattice symmetry, while various alloying elements have strengthening and toughening effects through altering the VES parameters.

运用固体与分子经验电子理论建立起Fe〓Al合金各相的价电子结构，在计算中，首次尝试利用TFD模型确定Fe〓Al的原子杂阶，针对不完全有序的B2-Fe〓Al提出"局部平均原子模型"，对Fe〓Al的室温脆性从电子理论上进行了系统的阐述，认为较少的晶格电子、键络分布不均匀、氢致脆性和难以恢复晶体的对称性使Fe〓Al具有本质脆性，合金化元素可以在一定程度上改变价电子结构参数而改善强度和韧性。

So,his ideas about translation was inevitably subject to historical restrictions and his political philosophy:first,he saw a historical cultural difference between China and western modernity from the angle of history and time;second,his commentary and critique on China's linguistic heterogeneity in 1930s destabilized the translation from "source language" to "target language";third,he tried in theory to solve the problem of difference left by translation.

他的翻译思想受到了及其政治理论背景的影响：首先，他从历史和时间的角度，认为他的位置和西方"性"之间有历史性的文化差异；其次，他对中国20世纪30年代语言异质性的表述与批评动摇了源语言与目标语言之间翻译的稳固关系；最后，他试图在理论上解决翻译所产生的差异问题。

By limiting the horizontal distribution extent of plant root systems, the limited-areas methods can decrease spatial heterogeneity of soil water content and improve the accuracy of determination of soil water content.

植物在极端干旱条件下的生存能力表现为叶片枯黄、萎蔫、脱落和枝条从上到下逐渐干枯，但枝条基部和根系仍然存活，并保持较长时间的存活能力，在遇到适宜的降水后能继续萌发、生长。

This reflects thatthe living quarters of work units are moving into heterogeneity in theprocess of economic development and urbanization.

这反映了宿舍院在经济发展与城市化的进程中，逐步走向异质化的过程。

Borrow loanword is a universal phenomenon when a sort of language affiliates with heterogeneity culture.

谢谢的意思呵呵，学了几句会说不会写了就会写这两个，明天还要去学习，我的论文。。。。

But it is very difficult to design and implement query optimization because of the distribution and heterogeneity of the computing environment and the autonomy of multiple local data sources.

查询优化是异构数据集成中需要解决的关键问题之一，但环境的分布性、异构性以及局部数据源的自治性使得异构数据集成中的查询优化变得非常困难。

Meanwhile, the result of simulations shows that the heterogeneity of degree distribution and local spatial interaction are key factors affecting the malware propagation and immunization.

同时，研究指出网络中度分布的异质化程度和网络的局域空间交互特征是影响传播及免疫行为的关键要素。

The statistical simulation analysis method is effective to deal with space- time heterogeneity of earthquakes and risk regions, after 105 count of the va lues of simulating random prediction probability have been got, the objective result s have been got by comparing between the simulation prediction average probabili ty and the practice prediction average probability.

由于统计模拟的方法有效地处理了地震和危险区的时空不均匀性，并且得到经运算105次的统计模拟随机预报概率，将其与实际预报平均概率比较，得到较为客观的结果。

Therefore, with considering threshold pressure gradients and the maldistribution of threshold pressure gradients caused by reservoir heterogeneity, it will be more objective and better to forecast the production performance of gas wells and guide low-permeability gas reservoirs practical production.

因此，考虑启动压力梯度和由储层非均质性引起的启动压力梯度非均匀分布能更为客观的预测气井单井生产动态，为气田合理开发提供可靠的决策依据。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。