关于我国离婚法定条件的探讨——混合标准还是单一标准

关于离婚法定条件的探讨贯穿于我国婚姻法发展的整个过程。从1950年新中国第一部婚姻法到1980年婚姻法的重新制定,乃至2001年婚姻法的修订,都是一个探索的过程,但探索的结论并没有很大的突破,仍是将离婚法定条件定为感情或婚姻破裂的单一标准。出于完善我国婚姻立法中的法理基础的需要,笔者以为应在我国婚姻立法中确立混合标准的离婚法定条件。     

我国蹦床女子网上单人项目现状及差距分析

笔者分析了悉尼奥运会蹦床比赛女子单人决赛和 2 0 0 0年我国“科健杯”全国蹦床冠军赛女子单人决赛。结果表明 :我国女运动员的预跳能力、动作技术的稳定性和难度提高显著 ,与世界水平的差距日益缩小。全国冠军黄珊仙的水平已达到世界前列。同时 ,笔者还对我国蹦床女子单人项目今后训练提出了一些建议。     

100m跨栏跑教学方法的单因素方差分析

通过100m跨栏跑的单元教学,施以不同的教学方法,观察学生完成技术动作的情况。运用单因素方差分析,经SAS软件检验,认为栏间四步技术是普通高校女生100m跨栏跑的合理技术。     

湘西南侗族青少年足型的研究

为了解湘西南侗族青少年足型及其发展趋势 ,按活体测量要求 ,对湖南省通道和靖州侗族自治县 1343名侗族青少年 (7～ 18岁 )的足长、足宽进行了测量 ,并按足宽足长指数进行分类 ,结合文献资料调研和数理统计法对数据进行整理分析。研究结果表明 :侗族青少年的足长、足宽分别随年龄增长而增长 ,16岁时接近成人水平 ;足长与足宽之间存在正相关 ;足型以中间型最多 ;侗族与汉族青少年足型分布差异无显著意义 ,与畲族青少年足型分布的差异非常显著     

对足球双主裁判制的初步构想

针对足坛现行单主裁判制的弊端，结合比赛的实际提出足球双主裁判制，并对其运用提出初步构想。     

双端口存储器在加密机中的应用

本文论述一个由单片机和双端口存储器构成的加密机,阐述了加密机的工作原理和操作流程.由于双端口RAM的采用,支持中断机制,同步与协调控制单片机与算法单片机并行工作,双端口RAM弹性连接控制单片机与算法单片机,匹配它们的传输速率和处理能力,提高了加解密的处理效率,控制单片与主机之间可进行全双工通信,这样的传输可以节省控制单片机的时间,提高效率.     

A descriptive study of step alignment and foot positioning relative to the tee by professional rugby union goal-kickers

This study describes foot positioning during the final two steps of the approach to the ball amongst professional rugby goal-kickers. A 3D optical motion capture system was used to test 15 goal-kickers performing 10 goal-kicks. The distance and direction of each step, as well as individual foot contact positions relative to the tee, were measured. The intra- and inter-subject variability was calculated as well as the correlation (Pearson) between the measurements and participant anthropometrics. Inter-subject variability for the final foot position was lowest (placed 0.03 ± 0.07 m behind and 0.33 ± 0.03 m lateral to the tee) and highest for the penultimate step distance (0.666 ± 0.149 m), performed at an angle of 36.1 ± 8.5° external to the final step. The final step length was 1.523 ± 0.124 m, executed at an external angle of 35.5 ± 7.4° to the target line. The intra-subject variability was very low; distances and angles for the 10 kicks varied per participant by 1.6–3.1 cm and 0.7–1.6°, respectively. The results show that even though the participants had variability in their run-up to the tee, final foot position next to the tee was very similar and consistent. Furthermore, the inter- and intra-subject variability could not be attributed to differences in anthropometry. These findings may be useful as normative reference data for coaching, although further work is required to understand the role of other factors such as approach speed and body alignment.     

Structural Reliability of Broadside of a Bulk Carrier

The ultimate bending moment and maximal shear stress of a bulk carrier with two structural forms （single hull and double hull/ are calculated separately by using the combined moment which is determined by stochastic process. Then the assessment of reliability is carried out. The results indicate that by introducing the double-hull structure, the shear stress of side can be decreased to half of that of the primary structure（ 50.7% i. but the effect on longitudinal strength is not obvious. Finally, the effects of different double-side skin widths on ultimate bending moment and the maximal shear stress are investigated, followed by proposals of the selection of the double-side skin width.     

8031单片机的串口通信功能

研究了8031单片机的串行通信资源，通过实例演示了8031单片机串行通信的硬件与软件设计方法。     

单层球面网壳屋盖屈曲有限元分析

以单层球面网壳屋盖为研究对象,对50m、30m跨单层球面网壳进行了屈曲有限元分析研究,考虑了不同支座、跨度对结构屈曲特征值的影响,得到了一些重要结论,为单层球面网壳的设计、研究和应用提供了一定的参考和借鉴.