[!--title--]

来源 :老年人 | 被引量 : [!--cite_num--]次 | 上传用户:[!--user--]
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
[!--newstext--]
其他文献
This paper considers a class of stochastic variational inequality problems.As proposed by Jiang and Xu (2008),by using the so-called regularized gap function,th
In this paper,a delayed ratio-dependent Holling-Ⅲ predator-prey system with stagestructured and impulsive stocking on prey and continuous harvesting on predato
接种11种外生菌根菌株对红椎苗期生长产生了影响.试验苗26周时测定的各生长指标统计分析结果表明,接种处理间在干质量、苗高、地径、须根数等指标上均有极显著或显著差异(P<0.
通过对界阜蚌公路沿线水土流失现状和特点的分析 ,对沿线的水土流失进行了预测 ,并提出了具体的防治措施。 Through the analysis of the present situation and characteri
核心素养是以培养全面发展的人为核心的素养,数学教学在培养学生核心素养的过程中具有不可替代作用。在小学数学教学中,培养学生核心素养的过程就是帮助学生通过数学学会思维
A partial linear model with missing response variables and error-prone covariates is considered.The imputation approach is developed to estimate the regression
This paper considers two estimators ofθ =g(x) in a nonparametric regression model Y =g(x) + ε(x ∈ (0,1)p) with missing responses:Imputation and inverse proba
In this paper,the dynamic behaviors of a discrete epidemic model with a nonlinear incidence rate obtained by Euler method are discussed,which can exhibit the pe
This paper considers the problem of estimating the bounds on the average controlled direct effects (ACDEs) of a treatment variable on an unobserved response var