高职院校公共基础课与专业课之间的相关分析——以广东工商职业学院为例

指出轻视公共基础课的教学对培养高素质的应用型人才是不利的,并利用典型相关分析的方法,对高职院校财务管理专业的公共基础课和专业课进行了相关分析,得出了公共基础课对专业课的支撑作用,为高职院校的课程改革提供了一定的理论参考。     

Kinematics of a striking task: accuracy and speed–accuracy considerations

Handballing in Australian football (AF) is the most efficient passing method, yet little research exists examining technical factors associated with accuracy. This study had three aims: (a) To explore the kinematic differences between accurate and inaccurate handballers, (b) to compare within-individual successful (hit target) and unsuccessful (missed target) handballs and (c) to assess handballing when both accuracy and speed of ball-travel were combined using a novel approach utilising canonical correlation analysis. Three-dimensional data were collected on 18 elite AF players who performed handballs towards a target. More accurate handballers exhibited a significantly straighter hand-path, slower elbow angular velocity and smaller elbow range of motion (ROM) compared to the inaccurate group. Successful handballs displayed significantly larger trunk ROM, maximum trunk rotation velocity and step-angle and smaller elbow ROM in comparison to the unsuccessful handballs. The canonical model explained 73% of variance shared between the variable sets, with a significant relationship found between hand-path, elbow ROM and maximum elbow angular velocity (predictors) and hand-speed and accuracy (dependant variables). Interestingly, not all parameters were the same across each of the analyses, with technical differences between inaccurate and accurate handballers different from those between successful and unsuccessful handballs in the within-individual analysis.     

自适应PID控制器的冷却水温度控制系统

笔者分析了自适应ＰＩＤ控制器参数自整定的工作原理，并介绍了将其用于主机冷却水温度控制系统中的研究结果。     

Hermite标准形——线性代数的重要工具

给出了Hermite标准形的一个重要性质,讨论了Hermite标准形在线性代数中的广泛应用,指出Hermite标准形为线性代数中的一个重要工具。     

浅析城乡二元经济问题———以青海为例

青海省经济快速发展的同时城乡二元经济问题日趋严重,并成为经济发展的障碍,本文运用实证分析与规范分析,依据青海省近三十年经济发展数据对青海城乡二元经济的表现,及对经济社会发展的现实和长远影响进行探讨和分析.通过分析,现阶段青海城乡二元经济对比是在扩大的,城镇化战略对缓解青海省城乡二元经济作用不显著.以此为基础对缓解青海城乡二元问题提供理论依据.     

The communication anxiety inventory: Validation of state‐and context‐communication apprehension

Research reported in this paper investigates the reconceptualization (McCroskey, 1984) of communication apprehension (CA), focusing on the relationship between context‐CA and state‐CA. The validity of the reconceptualization can be enhanced by demonstrating that state‐CA (level of fear and anxiety) is systematically related to context‐CA (predisposition). Two research studies using a new operational measures of state‐CA and context‐CA, the Communication Anxiety Inventory, offer empirical support for the relationship between context‐CA and state‐CA. Results show that context‐CA explains a minimum of 50% of the state‐CA variance. Conclusions suggest that level of fear or anxiety varies closely with context‐CA and that the new scales have strong predictive validity.     

熵与状态参量的关联

从正则系综与巨正则系综的统计规律出发推导出了熵与宏观状态参量之间的关联。结果表明,对单原子分子的理想气体而言,两种系综的结论是一致的;与单原子分子的理想气体相比,范德瓦尔斯气体的结论将出现一修正项。     

非理想约束系统的Boltzmann-Hamel型方程及其正则式

本文在文献[1]、[2]的基础上,提出带有非理想约束的分析力学的普遍中心方程,建立非理想非线性非完整非保守系统准坐标形式的广义BoltZmann—Hamel方程,并建立与其对应的正则方程,最后讨论线性系、保守系、完转系和理想系情形。     

我国各地农村居民人均收入与消费支出的统计分析

文章应用SAS统计软件，对我国2002年农村居民人均纯收入和消费支出的统计资料进行对应分析和典型相关分析，得到了许多有意义的结论，并针对我国目前的“三农”问题提出了一些有益的建议。