查询词典 mean square deviation

In this new model, the fuzzy-Markov theory is applied to analyze and predict the state transition of the uncertain factor in SPA model. By this way, the precision can obtained a significant improvement. Based on the correlation coefficient and mean square deviation of eigenvalue, two verify methods for fuzzy-Markov fitting in multidimensional space are suggested.

针对fuzzy-Markov子系统，分别提出了基于相关系数和特征值方差的多维空间模糊马尔可夫链拟合效果检验的两个新方法，并据此定量考察fuzzy-Markov子系统对参数响应的敏感性，用以确定最佳的模型参数组合。

METHODS: By using an in house 2D motion platform system to simulate the respiratory motion, the mean square deviation of N external markers coordinated between two kind of images was used as a similarity evaluating index to measure the accuracy of two-image registration.

利用二维运动平台系统模拟人的呼吸运动，用配准后N个外标记点在两种图像间位置平均偏差作为评价指标来衡量两图像配准的精度。

A significantly high precision with a root mean square deviation of 1.67℃ has been achieved by the approach introduced in this paper,which shows the advantages of synthetically utilizing multi-satellite data.

由于陆地表面远比海洋表面复杂，陆地表面温度反演一直是热红外遥感研究中的一大难题。

The mean square deviation was used to calculate the weight, and compositive appraisement method of hierarchy multiplayer and the linear weighted function were introduced to build the two levels and integrated indicator of health diagnoses model-the health index.

以均方差决策法确定了各指标的权重，运用递阶多层次综合法、线性加权函数法分别建立了二级层次和综合指标健康诊断模型－健康指数。

An optimization model was established for identifying the soil hydraulic properties. The optimization objective was the minimum mean square deviation of simulation between measured and observed values of soil water content, and the constraint conditions were the upper and lower limit values of empirical soil hydraulic conductivity and water diffusion coefficients.

该文以反映土壤含水率实测值和计算值吻合程度的均方差最小为优化目标，以土壤导水率和扩散率经验参数上下限为约束条件，建立了土壤水分运动参数识别的优化计算模型。

According to basic analytical methods of environmental quality standards for surface water in China(GB3838-2002),we used the 2002-2006 monitoring data to evaluate and characterize water quality condition of Lanzhou reach of Yellow river,based on the Nemerow index and variance analysis of the mean square deviation.

根据2002-2006年黄河兰州段水质监测数据，按照《地表水环境质量标准》GB3838-2002中Ⅲ类水质标准，确定污染物的污染程度，选用内梅罗水污染指数法，运用方差分析，对黄河兰州段水质现状进行评价分析，结果表明：(1)黄河兰州段水体的主要污染物是粪大肠菌群和总氮；(2)大量未经处理的生活污水排放是黄河兰州段的主要污染源；(3)针对黄河兰州段生活污水污染现状，提出源头治污思路。

The former three chapters are about theoretical research, and the forth chapter is about empirical research. The theoretical research part generalizes the theoretical basis, theoretical model and the concept of city competitiveness both at home and abroad. According to these theories, the paper introduces the complete and explicit definition of city competitiveness and brings in a new city competitiveness model .The paper emphasizes on empirical research using the data in 2004 as sample, whose objects are ten big cities:Guangzhou, Shenzhen, Tianjin, Shenyang, Dalian, Nanjing, Hangzhou, Wuhan, Chongqing and Chengdu. Firstly, on the basis of mean square deviation method, it finds out both the scores of integrated competitiveness of cities and other factors, based on that analyze the relationship between them. And then the paper computes the scores of competitiveness of cities above by principal component analysis and sorts out them for assessment.

理论研究部分主要是概括的叙述了城市竞争力研究的理论基础和理论模型及国内外城市竞争力的概念，在此基础之上对城市竞争力给出了完整明确的定义，并提出了新的城市竞争力模型；全文的重点在实证分析部分，实证分析是以广州、深圳、天津、沈阳、大连、南京、杭州、武汉、重庆、成都10个城市为研究对象，以其2004年的数据为样本，首先用均方差的方法计算各城市综合竞争力与各要素竞争力的得分，以此来分析综合竞争力与各要素竞争力之间的关系，然后采用因子分析的方法计算2004年各城市综合竞争力的得分并给出排序进行评价。

Also, the study shows that as the base state of the Aleutian and Iceland low experiences change, the mean square deviation on a secular basis also changes, exhibiting dominantly increased linear variability in the study period.

研究还指出，阿留申低压区及冰岛低压区在基本态改变的同时，标准差也有长期变化，而且主要表现为近百年中变率线性增大。

According to the variations of the mean square deviation of the structures in MD trajectories relative to the initial structures, the false structures can be excluded.(2) In order to achieve the binding mode, the docking simulations were performed between glutathione and different isomers of 99mTc-HMPAO with the package of AutoDock.

以两种蛋白质复合物为例，对其候选结构进行MD模拟，根据MD轨迹中构象相对于初始北京工业大学工学硕士学位论文摘要一构象的平方平均偏差随时间的变化来辅助打分函数排除错误构象，得到了较好的结果。

Total 26 features about the textures and the geometry of the tumor images, including the autocorrelation coefficients, the mean square deviation coefficients, and the compact ratios, were extracted.

该系统提取了乳腺肿瘤图像归一化自相关系数、均方差系数、紧凑度等共26个纹理和几何特征。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。