从运动过程研究中的几例矛盾谈多学科综合研究的必要性

人的运动,是一个伴随着物理变化、化学变化和心理变化的矛盾统一过程,必须进行多学科的综合研究.     

体育数学模型的理论与方法

本文从体育问题与数学模型、体育数学模型的建立过程和方法、体育现象和数学模型的类别以及体育数学模型与计算机应用四个方面,概要介绍了体育数学模型的理论与方法。     

Effects of power variation on cycle performance during simulated hilly time-trials

It has previously been shown that cyclists are unable to maintain a constant power output during cycle time-trials on hilly courses. The purpose of the present study is therefore to quantify these effects of power variation using a mathematical model of cycling performance. A hypothetical cyclist (body mass: 70?kg, bicycle mass: 10?kg) was studied using a mathematical model of cycling, which included the effects of acceleration. Performance was modelled over three hypothetical 40-km courses, comprising repeated 2.5-km sections of uphill and downhill with gradients of 1%, 3%, and 6%, respectively. Amplitude (5–15%) and distance (0.31–20.00?km) of variation were modelled over a range of mean power outputs (200–600?W) and compared to sustaining a constant power. Power variation was typically detrimental to performance; these effects were augmented as the amplitude of variation and severity of gradient increased. Varying power every 1.25?km was most detrimental to performance; at a mean power of 200?W, performance was impaired by 43.90?s (±15% variation, 6% gradient). However at the steepest gradients, the effect of power variation was relatively independent of the distance of variation. In contrast, varying power in parallel with changes in gradient improved performance by 188.89?s (±15% variation, 6% gradient) at 200?W. The present data demonstrate that during hilly time-trials, power variation that does not occur in parallel with changes in gradient is detrimental to performance, especially at steeper gradients. These adverse effects are substantially larger than those previously observed during flat, windless time-trials.     

应用管理系统在局域网中的总体设计

随着计算机关系型数据库语言的丰富与完善,特别是FOXBASE最新一代的数据库管理系统软件的出现,以及各种管理系统开发工具软件的使用,使得在开发一个计算机系统时,最感困难和复杂的已不再是具体程序的编写,而是整个系统的规划。大连市委组织部开发的《大连市组织工作信息管理网络系统》即是整个系统的规划在局域网络中的总体设计的想法和思路。     

Explaining the substantial inter-domain and over-time correlations in student achievement: the importance of stable student attributes

Multi-domain and longitudinal studies of student achievement routinely find moderate to strong correlations across achievement domains and even stronger within-domain correlations over time. The purpose of this study is to examine the sources of these patterns analysing student achievement in 5 domains across Years 3, 5 and 7. The analysis is of longitudinal population data of over 22,000 students and utilizes fixed-effects models to incorporate stable general and domain-specific latent factors. These latent factors correspond to a general cognitive-ability-like factor and specific aptitudes in particular, or types of, subject areas. The preferred model incorporates both general and domain-specific latent factors with stronger effects for the general factor, although the domain-specific factors are particularly strong for spelling and numeracy. When taking into account general and domain-specific latent factors, the effects of student’s socioeconomic status (SES) and school SES are trivial.     

水墨写意画造型特点分析

中国画的造型方式有别于其他画种,既不追求绝对的写实,又不主张脱离真实物象的过分夸张变形,而是力求在尊重客观对象的基础上,对形象进行适当的处理,使所表现的形象更加符合画家的主观意图,更加生动,更具表现力。“意象造型”是水墨写意画所采用的基本造型手段,也是中国画造型的显著特征。     

Do digital natives differ by computer self-efficacy and experience? An empirical study

This study serves to validate a Chinese translation of the Digital Native Assessment Scale (C-DNAS) and assess if significant differences exist between a sample of students and teachers from a culture different than the one used in the development of the DNAS. Participants were 402 university students from one province in Mainland China. Results of the confirmatory factor analysis revealed that the C-DNAS possessed a stable factorial structure and was a valid measure among Chinese-speaking participants in Mainland China. Tests of measurement invariance revealed score equivalence among the students for each of the four factors of the C-DNAS: grew up with technology; comfortable with multitasking; reliant on graphics for communication; and thrive on instant gratifications and rewards, by computer self-efficacy and experience. Finally, tests of latent mean differences revealed significant differences in each of the four factors by computer experience but not by computer self-efficacy. Implications for research are discussed.     

论高职教育中的人文素质培养

高职教育的目的是培养社会第一线需要的高级应用性专门人才。人文素质的教育以提高学生道德标准、人生态度、审美情趣、思维方式为内涵，逐步内化受教育者的品质，气质与修养。把人文素质培养贯穿于高职教育之中，是造就一大批具有综合职业素质优秀合格人才的保证。     

步枪作战效能评估

应用联系数、关联度、模糊综合评判以及层次分析方法分别对两代(共10种)冲锋枪和自动步枪作战效能的评估和排序进行了讨论,并对其作战效能和技术水平进行了判断.所得结论对了解我军装备的先进程度,适应新时期军事科学和战备具有特别重要的意义.     

谈职技高师学生的综合素质养成教育

近年来，职技高师对学生的综合素质养成教育进行了初步的研究与探索，并在实践中取得了一定成效。职技高师培养目标的特殊性决定了学生的综合素质养成教育有着与其他高校不同的要求。本从职技高师学生的师德素质、专业技术素质、创新精神和实践能力培养等方面，对学生综合素质养成教育中的一些问题进行了初步思考与探讨。