查询词典 test-tube

To resolve the problem, based on backpressure test theory and superposition principle, this paper designed a new test method, named Backpressure Isochronal Test.

以回压试井理论和渗流叠加原理为基础，提出了"回压等时试井"产能评价方法，该法所需测试时间与"单点法"大致相同，但能较准确地评价低渗气井产能。

Based on the pre-treated Chinese annual economic data from 1985 to 2004,the paper makes the time series stability test,the co-integration test(Johansen maximum likelihood method) and Grenger causal test,and makes a positive analysis of the long-term stable relation between the foreign direct investment in China and the growth of China's economy,which proves that the foreign di...

本文根据经过预处理的1985—2004中国有关年度经济数据，进行了时间序列平稳性检验、协整检验(Johansen极大似然方法)和格兰杰因果检验，实证分析了外商在中国直接投资与中国经济增长之间存在的长期稳定关系，证实了外商直接投资是我国经济增长的一个重要原因，并提出一些政策建议。

Quantitative methods include ADF Unit Root Test, Johansen Cointegration Test and Granger Causality Test.

定量分析方法采取现代计量经济学方法——ADF单位根检验、Johansen协整检验和Granger因果关系检验。

Analyzing the various problems of current steady-state operation life test standard, it is pointed out that, not measuring and controlling, transistor junction temperature in current transistor steady-state operation life test can lead to fatal inaccuracy of the test results.

在分析了现行标准中晶体管稳态工作寿命试验方法存在问题的基础上，认为在现行的稳态工作寿命试验中没有对晶体管的结温实施测量和控制，是导致试验结果不准确的重要原因。

The former involves right prediction rate, Kappa consistency test, ROC curve, and the latter includes likelihood ratio test, Hosmer-Lemeshow test, etc.

评分前的准备工作主要是特征变量的筛选，其中使用的主要方法为Logisitic回归、列联表分析和人工神经网络；本文使用的个人信用评分与评估方法为广义判别分析、精练决策树模型、改进遗传算法、概率神经网络和行为评分模型；个人信用评估的效果检验包括拟合效果检验和拟合优度检验两个方面，前者涉及的方法有预测的正确率、Kappa一致性检验、ROC曲线，后者主要包括似然比检验、Hosmer-Lemeshow检验等。

Experiments on different statistics and judging objects show that the test methods based on the two statistical distributions can make good results on test videos to different extent; but the test based on Laplace distribution is better in terms of overall performance.

针对不同统计量和判决对象的实验结果表明，基于这两种分布的检验方法都能不同程度地对测试视频分割出较好的结果，但基于Laplace的检验方法的综合性能较优。

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。

Objective Evaluation of the two large sample means t test?u test and u'test.

目的 对适用于两个大样本均数比较的t检验、u检验及u′检验评价。

Due to the fact that test application time is proportional to the length of the overlapped vector, except that the length of the overlapped vector is far less than the sum of the length of the original individual test vectors, minimal test application time can be obtained.

由于测试应用时间与重叠向量的长度成正比，而重叠向量的长度要远小于原始测试向量的长度总和，从而减少了测试时间。

Methods: carried out blood glucose test of fingertip capillary vessels, glucose tolerance test and lipoid metabolism index test.

2型 糖尿病的自然发展可分3个阶段1、糖耐量正常/胰岛素抵抗。2、糖耐量低减3、最终进展2型糖尿病。

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。