基于神经网络的监控数据智能处理方法

针对船用系泊缆绳安全智能报警系统中的表格试验数据，提出了应用神经网络技术的智能数据处理方法。该方法克服了传统数据处理方法一般难以找到合适的逼近函数、处理过程复杂的弱点，避免了传统数据处理方法上的不便性和局限性，实现了表格数据非线性输入输出的映射。通过样本学习而建立的网络可以提高数据的取用效率，具有很大的灵活性和适用性。这是一种很有应用价值的数据处理方法。     

Sculpture Dedicated to Olympics

Founder of modern Olympic Games Coubertin said, ＂Athletics inspires art and creates moments of artistic expression. Athletics is beautiful as it makes athletes dynamic sculpture.＂ In celebration of the Beijing Olympic Games, many outstanding sculptures have been created to ignite people＇s passion and dream.     

Anthropometric and training characteristics of female marathon runners as determinants of distance running performance

The purpose of this study was to determine how female marathon runners of varying standards differed in body composition and physique and in their training regimes, and secondly to develop predictors of distance running performance from the anthropometric and training variables. Female marathon runners (n = 36), all participants in a national 10 mile (16 km) road racing championship, were divided into three groups according to their best time for the 26.2 mile race. They were assessed for body composition and somatotype using anthropometric techniques and completed a questionnaire about their current training for the marathon. No difference was found between the groups of distance runners when measured for height, bone widths and circumferences. The three groups were found to have similar body weights of approximately 53 kg, a value which is much lower than the average for sedentary women, but which compares favourably with those from previous studies of female long distance runners. While all the runners had a lower per cent fat, as measured from skinfold thicknesses, than sedentary women, the elite runners were seen to have significantly lower values (P less than 0.05) than the other two groups. The difference in body fat was particularly reflected in the triceps skinfold value. There was also a tendency for the elite runners to be more ectomorphic and less endomorphic than the others. The better runners were seen, on the whole, to have been running longer, and to have more strenuous regimes, both in terms of intensity of training and distance run per week. Multiple regression and discriminant function analyses indicated that the number of training sessions per week and the number of years training were the best predictors of competitive performance at both 10 mile and marathon distances. They also indicated that a female long distance runner with a slim physique high in ectomorphy has the greatest potential for success.     

Gender differences in coaching philosophy: the case of female basketball teams

With the advent of Title IX, the proportion of female participants in interscholastic sport has risen sharply while the proportion of female coaches has dropped precipitously. This paper seeks to determine whether there are any differences in coaching philosophy by gender. Questionnaires were sent to the coaches of 600 high school girls' basketball teams selected randomly from the 48 contiguous states. There were 250 usable ones returned for a response rate of 42%. The questionnaires included items designed to assess the attitudes and behaviors of coaches in five areas of coaching philosophy: (1) the coach's role in the overall development of athletes; (2) conditions believed essential to maximize team performance; (3) team rules used; (4) use of sports aphorisms; and (5) expectations of athletes. Summing the findings, we found that in 83 of the 100 comparisons there were no statistical differences in the means of the male and female coaches. In the 17 instances where there were statistically significant differences, 14 times the female coaches were on the more traditional side. Several possible explanations for this interesting finding are discussed.     

飘球原理归结及其潜在威力之分析

本文以排球新规则有关发球条文为依据，运用流体力学原理，根据风洞实验、自由落体实验的结论与数据，对飘球的原理及特点进行了深入的探讨分析，揭示了现阶段挖掘飘球潜在威力的可行性与现实性。