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排序方式: 共有108条查询结果,搜索用时 15 毫秒
1.
张彩萍 《中北大学学报(社会科学版)》2002,(4):72-74
通过对职业技术学院学生现状的分析 ,以整体语言教学的理论为依据 ,进行了分层次教学的尝试并作了效果调查 ,提出了分层次教学是提高学生英语水平的有效途径。同时也指出 ,要全面实施分层次教学 ,还受到多种条件的制约。首先 ,需要教师有足够的精力、有良好的心理素质 ;其次 ,还需要有良好的管理体制来保证这种方法的实施 相似文献
2.
王芳 《南京人口管理干部学院学报》2003,19(4):50-52,55
通过分析交际教学法和语法教学法自身的特点和各自在英语教学中的优势与局限 ,指出将两者结合应用应是现阶段大学英语教学最理想的教学模式 ,并从教学目的、教学对象和教师自身角度说明了这种结合应用的必要性。在此基础上 ,总结了目前在结合应用实践中发现的问题 ,并提出了相应的解决办法。 相似文献
3.
本文建立了若干新的增算子不动点存在定理,作为应用,作者研究了在Banach空间中一类含间断项Volterra积分方程解的存在性,我们的结果改进和推广了诸多已知结果。 相似文献
4.
《Journal of Statistical Computation and Simulation》2012,82(4):299-324
Based on the recursive formulas of Lee (1988) and Singh and Relyea (1992) for computing the noncentral F distribution, a numerical algorithm for evaluating the distributional values of the sample squared multiple correlation coefficient is proposed. The distributional function of this statistic is usually represented as an infinite weighted sum of the iterative form of incomplete beta integral. So an effective algorithm for the incomplete beta integral is crucial to the numerical evaluation of various distribution values. Let a and b denote two shape parameters shown in the incomplete beta integral and hence formed in the sampling distribution functionn be the sample size, and p be the number of random variates. Then both 2a = p - 1 and 2b = n - p are positive integers in sampling situations so that the proposed numerical procedures in this paper are greatly simplified by recursively formulating the incomplete beta integral. By doing this, it can jointly compute the distributional values of probability dens function (pdf) and cumulative distribution function (cdf) for which the distributional value of quantile can be more efficiently obtained by Newton's method. In addition, computer codes in C are developed for demonstration and performance evaluation. For the less precision required, the implemented method can achieve the exact value with respect to the jnite significant digit desired. In general, the numerical results are apparently better than those by various approximations and interpolations of Gurland and Asiribo (1991),Gurland and Milton (1970), and Lee (1971, 1972). When b = (1/2)(n -p) is an integer in particular, the finite series formulation of Gurland (1968) is used to evaluate the pdf/cdf values without truncation errors, which are served as the pivotal one. By setting the implemented codes with double precisions, the infinite series form of derived method can achieve the pivotal values for almost all cases under study. Related comparisons and illustrations are also presented 相似文献
5.
研究了留数定理的有关问题,通过举例论证和归纳推理等证明方法,得到了单个留数定理的一个推广结论,最后将此结论应用于一些积分问题中. 相似文献
6.
Considered are stochastic continuous-time control systems described by stochastic differential equations, which are defined by special martingals. Examples are given by the well known Ito equations with respect to a Wiener - or a Poisson process. By means of a performance index, regarding current yields as well as a terminal payment a control problem is formulated. The essential result in view of concrete evaluation is the approximation by a sequence of discrete-time finite dimensional control problems. 相似文献
7.
Chang-Ming Hsieh 《Social indicators research》2008,87(1):127-137
This article seeks to extend Michalos’ [Social indicators research and health-related quality of life (QoL) research. Social Indicators Research, 65, 27–72, 2004] discussion on bridging social indicators research and health-related QoL (HRQoL) research through an examination
of (1) the relative importance of satisfaction with one’s own health to another common measure of QoL—Life satisfaction, and
(2) the relative importance of health in relation to other major life domains. Using data from two surveys, this article found
that individuals may perceive health as most important in relation to other major life domains but satisfaction with one’s
own health may not necessarily be the most important determining factor (in relation to satisfaction with other major life
domains) of QoL as measured by life satisfaction. These findings support Michalos’ (Social indicators research and HRQoL research.
Social Indicators Research, 65, 27–72, 2004) call for caution regarding the interpretation of research results on HRQoL since many HRQoL measures are measures
of satisfaction with one’s own health and should not be considered as measures of QoL. 相似文献
8.
新时期,由网络媒介技术迅猛发展带来了经典公共领域范畴的重塑或新生。因此,在此探讨经典公共领域的重塑主要特指网络公共领域,广义上还应包含因网络媒介影响的其它生活场域。本文力求运用解释学方法阐释新时期网络媒介的兴起带来了经典公共领域的重塑,并尝试提出中国理想网络公共领域的构建建议。 相似文献
9.
10.
王浚岭 《三峡大学学报(人文社会科学版)》1998,(1)
本文引人m阶积分算子,给出函数乘积u(x).v(x)的m阶积分公式,此公式将函数乘积u(X).v(x)的n阶导数的Leibniz公式推广到n为负整数情形,此公式同时也是函数f(x)的Taylor公式及Taylor级数的一种推广. 相似文献