查询词典 observational error

To explore Tephrosia facilitate emergence and survival of the matrix formula for rapid seedling Tephrosia to provide theoretical and practical basis for selection of the trial of domestic peat, imported peat, perlite, vermiculite, a mixture of river sand for the material of the different media for the cultivation of Tephrosia test, and eight kinds of formulations were measured by physical and chemical properties and the growth of Tephrosia physiological and observational data analysis of variance and multiple comparisons.

急急急！！！科技论文英文摘要翻译本人英语超烂~~没过4级~几天后就要答辩了~要赶论文啊~下面是我的摘要：为了探讨有利于对山毛豆出苗和成活的基质配方，为山毛豆快速育苗提供理论和实践依据，本试验选用国产泥炭、进口泥炭、珍珠岩、蛭石、河沙为材料混合组成的不同基质，进行山毛豆的栽培试验，同时分别测定8种配方的理化性质和山毛豆的生长生理指标，并对观测数据进行方差分析和多重比较。

Methods: We performed a prospective observational study. A total of 25 patients were enrolled and divided into 2 groups: 13 with bacterial parapneumonic effusion and 12 with transudative effusion.

这是一个前瞻性的观察研究，总共有25位患者分为两组为研究对象。13位为细菌性肺炎相关肋膜积液及12位为渗出性肋膜积液的患者。

Paco Underhill, a pioneer in the field of observational customer research pointed out that people are taped dozens of times each day doing routine chores like pumping gas.

顾客观察研究领域的先驱安德希尔表示，人们每天执行例行杂务，例如为爱车车胎打气的过程中，都会被录下数十次。

Background- Observational studies suggest that open visiting policies are preferred by most patients and visitors in intensive care units, but no randomized trial has compared the safety and health outcomes of unrestrictive and restrictive visiting policies.

背景：重症监护病房开放探视受到患者和探视者的欢迎，但是没有相关随机试验来比较限制探视和开放探视在安全性和健康方面的差异。

this paper discussed several untestable assumptions which were often used in epidemiologi-cal observational studies,and some paradoxical results that may arise under different assumptions were showed.simpson's paradox and lord's paradox were introduced.assumption of treatment assignment in causal inference of epidemiological studies,assumption of control group in evaluation of exposure ef-fects,and assumption of missing data mechanisms in incomplete data analysis were also discussed.

本文主要讨论流行病学观察性研究中几种常用的假定，介绍simpson's悖论和lord's悖论，逆回归问题，以及在不同假定下可能出现的相互矛盾的结果。探讨流行病学研究的因果推断中处理分配机制的假定，暴露作用评价中对照组的模型假定，以及不完全数据分析中缺失数据机制的假定。

The other one retrieves vertical velocity from the reflectivity using statistical algorithm and assimilates the vertical velocity taking Richardson's equation as observational operator. It is found that the vertical velo city derived by the former is usually too weak while the later gets the distinct three dimensional convective structure of meso-scale system with strong vertical velocity.

其一是采用Richardson方程通过水平风场、温度和气压来对垂直速度进行诊断，其二是利用统计方法由观测的反射率因子反演出垂直速度后，再采用Richardson方程作为观测算子对反演的垂直速度进行同化。

The participants are interviewed one-to-one and the result shows that when students are conjecturing geometry, different ways of initial observational behaviors for picture cards appear, and that the behavior of collecting data is related to the whole amount and the correct rate of conjectures. Most of the students adopt the method of only observing one piece of diagram during the initial period of observation and are able to attain more correct and bigger amount of conjectures.

结果显示学生在进行几何臆测，对於图卡的初期观察行为会呈现不同的方式，而且该资料收集行为与学生能产生的全部臆测命题数和臆测命题正确率相关，多数的学生在初期观察时，采用仅观察一张图例的方式，而且可以获得更多且更正确的臆测命题。

Social practice, knowledge accumulation and technological development have shaped the profile of the observer. As artists, Yin Zhaohui and Yin Zhaoyu propose to raise an observational system in the standardized and denaturalized public consciousness.

社会实践、知识积累、科技发明的混合塑造了一种观察者的身形，而尹朝辉、尹朝宇以艺术家的身分作为观察者，在现今已标准化且去自然化的群众知觉中，提出了一层新的观察者机制。

Many factors have been incriminated --- dietary protein, calcium, vitamin D, Ca:P, low UVB, rapid growth from high calorie diets --- but to date our information has been strictly observational and anecdotal.

许多因素造成了隆背---蛋白质摄入，钙，维生素D，钙磷比，低UVB，高热量食物引起的快速生长--但是到目前为止我们的信息一直受到拘束，而且大部分只是传闻。

Using maximal ancestral graph models, this paper characterizes the independencies and causal structure of the observed variables and provides an algorithm for causal inference using observational data.

作者利用在观测变量上构造的最大祖先图模型刻画观测变量间的独立性关系和因果结构，并提出了具体的实现算法，从而可由观测数据来推断这类不完全观测下的部分因果关系。

He became prime minister in 1997 and won international acclaim for his role in the Northern Ireland peace process.

他在1997年成为总理，并且因为在北爱尔兰的和平进程中发挥的作用受到国际社会的赞许。

Mixed Page Sorting Method Using the cuttable user model, this thesis proposes a mixed page sorting method by using cutted user model in server-side and complete user model in client-side.

隐私分级利用的混合式页面排序方法针对个性化搜索中搜索结果排序的问题，本文利用隐私可控开放的用户偏好模型，提出一个在客户端和服务器端分步进行的隐私分级利用的混合式页面排序方法。