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331.
模块阅读教学法在英语专业阅读教学中的运用 总被引:3,自引:0,他引:3
许红娥 《湖北师范学院学报(哲学社会科学版)》2004,24(2):143-147
本文从语篇 (text)的主题、背景知识、结构及词汇四个层面阐述如何将模块阅读教学法 (BlockReading&Writing )运用于英语专业阅读课教学的实践。笔者认为这种教学法有利于提高学生的阅读理解能力 ,扩大词汇量 ,从而扩大学生的知识面 ,使学生所学的知识系统化、结构化 ,增强语言的运用能力和跨文化交际能力。 相似文献
332.
汪志城 《上海理工大学学报(社会科学版)》1993,(4)
指出古典滚动摩擦定律存在着一定的局限性,对滚动摩擦机理从摩擦学观点进行了探讨,分析了滚动阻力来自微观滑动和弹性滞后.通过一系列金属和非金属材料的摩擦试验,测得滚动摩擦系数值及其变化规律,从而指出了影响滚动摩擦系数的主要因素.最后认为,滚动摩擦系数还须靠实测来确定. 相似文献
333.
In this paper a method of constructing group-divisible incomplete block designs has been suggested. A series of balanced incomplete block designs has also been obtained. 相似文献
334.
Jennifer Seberry 《Journal of statistical planning and inference》1984,10(1):69-82
Some recursive constructions are given for Bhaskar Rao designs. Using examples of these designs found by Shyam J. Singh, Rakesh Vyas and new ones given here we show the necessary conditions λ≡0 (mod 2), λυ(υ?1)≡0 (mod 24) are sufficient for the existence of Bhaskar Rao designs with one association class and block size 3. This result is used with a result of Street and Rodger to obtain regular partially balanced block designs with 2υ treatments, block size 3, λ1=0, group size 2 and υ groups. 相似文献
335.
《统计学通讯:理论与方法》2013,42(7):1571-1578
ABSTRACT Nested pairwise efficiency and variance balanced designs form a new class of block designs. In this article, two methods of constructing such designs from a symmetric balanced incomplete block design are proposed with some illustrations. 相似文献
336.
Tests based on rank statistics are introduced to test for systematic changes in a sequence of independent observations. Proposed tests include a rank test analogous to the parametric likelihood ratio test and others analogous to parametric Bayes tests. The tests are usable with either one- or two-sided alternative hypotheses, and their asymptotic distributions are studied. The results of the general model are applied to two special cases, and their asymptotic distributions are also investigated. A Monte Carlo study verifies the applicability of asymptotic critical points in samples of moderate size, and other simulation studies compare power of the competing tests and their special-case versions. Finally, these tests are applied to a data set of traffic fatalities. 相似文献
337.
Kung-Jong Lui 《统计学通讯:模拟与计算》2013,42(8):2384-2400
AbstractUnder an incomplete block crossover design with two periods, we derive the least-squares estimators for the period effect, treatment effects and carry-over effects in explicit formulae based on within-patient differences. Using the commonly-used strategy of searching a base model for making inferences in regression analysis, we define a two-stage test procedure in studying treatment effects. On the basis of Monte Carlo simulation, we evaluate the performance of the two-stage procedure for hypothesis testing, point and interval estimation of treatment effects in a variety of situations. We note that use of the two-stage procedure can be potentially misleading and hence one should not apply a test procedure to exclusively determine whether he/she needs to account for the carry-over effect in studying treatment effects. We use the double-blind crossover trial comparing two different doses of formoterol with placebo on the forced expiratory volume in 1 second (FEV1) readings to illustrate the use of the two-stage procedure, as well as the distinction between use of two-stage procedure and the approach with assuming no carry-over effects based on one's subjective knowledge. 相似文献
338.
339.
Shashi Shekhar 《统计学通讯:理论与方法》2013,42(8):2413-2425
AbstractA method of construction of A-optimal binary block designs for asymmetrical parallel line assays, i.e., the assays in which the number doses for standard and test preparation are unequal has been considered. The method is illustrated with examples. Two cases of this method have been considered. In the first case, designs obtained are of equal replications of the doses. In the second case, designs with unequal replications are obtained. 相似文献
340.
This communication deals with the construction and optimality of non-proper (unequal block sized) variance balanced (VB) designs obtainable under linear homoscedastic normal model. Several methods of construction of non-proper VB designs have been given. Some constructed designs are universally optimal non-proper variance balanced designs. 相似文献