在新农村文化建设活动中普及太极拳的必要性与可行性研究

建设社会主义新农村是我国现代化进程中的重大历史任务,文章运用文献资料法、问卷调查法、数理统计等研究方法;根据太极拳对身、心的锻炼价值及文化的继承等特征,从新农村贫富差距的根源;农村社会关系及农民的思想波动状况;新农村的生产、生活状况及休闲方式;新型农民应该具有的基本素质需要;农村体育人口现状方面及焦作太极拳普及成功的模式等方面,论证了进一步加大力度普及太极拳在新农村文化建设中的必要性和可行性。     

从养生学角度谈太极拳的功效

太极拳蕴涵着丰富的传统养生思想,集拳术、导引和吐纳术于一体,对健身、修心养性以及社会适应等具有独特的养生效果。文章从养生学角度谈练习太极拳对生理、心理以及社会适应三方面的影响,阐述其在现代养生中的作用。     

Separability in a class of coordinate systems

A study is made of separability conditions for the Helmholtz and Laplace equations. Attention is confined to the most useful case for physical applications; namely,

1.

(a) The coordinate system is either cylindrical or it has rotational symmetry, and     

Simplified interflection calculations

The purpose of the paper has been to present simplified methods that will expedite the calculation of ceiling lighting (Type II). Approximate formulas have been given, which allow ordinary slide-rule calculations to be made very easily for the usual range of variables. Only with rooms having very high domance (or perhaps with extraordinarily high floor reflectance) are the complicated equations of the previous paper (1) needed. These approximate formulas can be represented also by alignment charts, Figs. 2 to 5, which further simplify the work.Either the formulas or the charts may be used to investigate the effect of a change in ?₁, ?₂, or ?₃. However, if reflectances are standardized at recommended values, other methods are possible.In particular, one may use graphs (Fig. 6) or a slide-rule (Figs. 7 and 8). The method of calculation chosen for a specific problem will depend on the problem and on the preferences of the designer. The previous equations and tables (3) may always be used; but in most cases, time can be saved by employing the short-cuts given in the present paper.     

Interflectance calculations for various luminaires

Previous interflectance tables have dealt principally with three basic types of lighting (Types I, II, and III). The present paper extends the scope of the interflection method by showing how it can be applied to rooms lighted by hanging luminaires. It is found that most cases arising in practice can be covered by six canonic distributions. The effect of mounting height is handled by means of a simple equation.     

Radiant flux through apertures—I

Equations for the calculation of radiant power F through two apertures in series are well known. A characteristic of these formulae is that they give F as a small difference between two large terms. Evidently, the flux through the apertures must decrease as the spacing between them increases; and for large spacing, the inverse-square relation must hold. Instead of exhibiting this behaviour in an obvious manner, however, the traditional equations give the specious impression of an increase in F with increase in spacing. The paper develops an approximate formulae that applies to apertures in the shape of any regular polygon and that shows clearly how the inverse square relation is approached for large separation.     

Radiant Flux Through Apertures— III

This paper completes our treatment of radiant flux through pairs of apertures. In Part II, we obtained approximate equations for rectangular apertures in parallel planes, with the restriction that two apertures be identical and that one be directly above the other. Here we generalize to the case of any apertures that fit into a rectangular grid. The idea for this generalization originated with Ondracek but it is here expressed in matrix notation, which allows coefficients F_ij to be obtained rather simply.     

体育院校排球专项训练课教学模式的研究

通过对浙江省体育院校排球专项训练课的调查研究,我们得出在课程对象选择上,应当建立双向选择机制。通过对照实验,证明了“分层次递进”、“莫斯顿互惠分组”排球教学方法是在现实条件下最有效的教学方法。在考核指标上,针对不同年级学生,我们建立了不同的考核指标。     

定向越野运动员专项体能训练方法的探讨

定向越野是一项集智力和体力为一体的运动,近几年在我国广为发展,尤其在高校和中学中发展更为迅速.通过文献资料法、访谈法和总结归纳法对定向越野专项体能训练方法进行分析研究,总结出定向越野专项体能训练的內容,连续跑的能力、不规律变速跑、定向间歇性组合练习等方法.为定向运动的爱好者或各定向越野代表队提供一定理论帮助.     

篮球教学中大学生创造性思维拓展之研究

篮球课是高校体育教学的主要内容之一。文章运用文献资料研究方法、访谈法等研究方法,阐述了创造性思维的概念特点及如何通过篮球教学来拓展大学生的思维能力、发挥学生的主体性、培养学生的创造性思维来促进能力和智力的发展,从而有效地提高篮球教学质量和学生的综合素质。