基于LabView的电能质量虚拟仪器分析仪

为了检测电能质量,本文提出一种基于Lab View软件的电能质量虚拟仪器分析仪,并解释了部分原理知识和Lab View程序设计的过程。该虚拟仪器可以简单快捷地检测电能质量并模拟不同情况电能质量波形图,然后计算其电能质量的失真度。该虚拟仪器分析仪利用利用小波算法检测电能信号突变点,选用的小波基为Meyer小波。该虚拟仪器分析仪也有助于加深学习者对于电能质量各种不同恶化情况的印象,可以直观地看到电能质量的变化。     

2005-2015年CBA各球队竞争实力的不确定性研究

以近10届(2005-2015)CBA各球队为案例,采集横截面、时间序列、面板3个层面的数据,基于经济学HHI方法衡量和揭示CBA各球队竞争实力的不确定性,探寻CBA各球队竞争实力不确定性与现场观众人数、主客场胜率和净胜分等之间的关系,结果表明：近10届CBA联赛HHI值呈下降趋势,说明CBA各球队竞争力正向着均衡方向发展,但赛季内部球队之间竞争力差距依然明显;主场和客场胜率之间差距存在高度显著性( P<0.01);CBA观众上座率与HHI之间呈高度负相关(P<0.05),即比赛结果的不确定性越强,上座率就越高;近10届CBA联赛主、客场净胜分差值在逐渐缩小,冠亚军球队实力正趋于平衡,但与其它队伍之间的差距存在显著性。     

感悟“第一名”现象

文章指出：传统的教育评价，易造成“第一名”学生的高分低能，现代的教育，应注重学生综合能力的考察，选拔最优秀的学生。因材施教，促进学生内在潜能的开发尤其重要。     

用微分方程求二项式（1＋x）^α的幂级数展开式

本用微分方程求二项式（1＋x)6α的幂级数展开式，取得成功，从而避免了通常计算余项极限的繁杂过程。     

An economic evaluation of Iranian public agricultural R&D policy: The case of sugarbeet

Despite its long tradition in the economic literature, there is no acceptable economic evaluation of Iranian public agricultural R&D policy mainly because of the lack of reliable estimates of supply shift parameter. Sugarbeet is chosen as a case for the estimation of the parameter using the method developed here and then the efficiency of the public investment in sugarbeet research is evaluated using the ordinary cost–benefit analysis. Research station records for 1982–2004 are used to estimate annual changes in beet attributes of root yield and sugar content and the estimates are used to make an evaluation of Iranian beet research investment. The results showed that the investment led to an average of 7.18% annual increase in beet sugar supply during the period (composing of +7.74% change in root yield index and −0.5% change in sugar content index) giving an internal rate of return of 32% (or an NPV/ha of $69) to this investment. It is concluded that although the investment has been profitable in comparison to other public investment projects, the efficiency of the policy is not comparable to that common in the literature and a revision in the policy is proposed.     

福柯权力话语论对后殖民主义文本理论的启示

在福柯的所有理论集大成中,权力话语成为其理论核心和关键.他认为知识使统治的结构获得某种合法性,而这种统治总是具有压迫、监禁和权力的分割等特征.其话语权力利理论启发并影响了后殖民主义理论家,成为后殖民主义理论的基石.他们借用福柯的话语理论来研究殖民主义文本并指出其中隐含的权力关系,揭示出西方宗主国时边缘文化的控制和文化侵略.     

系统训练对中学生社会适应能力影响的调查

根据社会性发展心理学的基本理论分析了系统训练促进社会适应能力发展的作用,论证了系统训练与社会适应能力的关系,提出多方位、多层次地发挥系统训练对于儿童青少年社会适应能力的促进作用,能使学生更好的对社会环境的一切变化发展和刺激能够做出积极、恰当、正常反应的能力     

陆上体能训练对游泳运动员运动成绩的影响

本文试图通过两组游泳运动员不同训练的模式所产生的训练效果,说明陆上体能训练手段对游泳运动员运动成绩的影响,为丰富今后训练模式和提高运动员训练水平,提供参考和借鉴。     

小说“Blackmail”的称谓语探析

称谓语通常蕴涵交际双方地位、身份、修养及其相互关系。运用社会语言学关于权势和等同关系有关理论分析小说Hotel的片段"Blackmail"中的人物角色的称谓语及其变异形式,反映交际双方之间权势和等同关系及其变化。     

A study of word diversification∗

Argument diagrams, especially Stephen Toulmin's “layout,” have enjoyed wide popularity, but the theoretical assumptions behind the use of such diagrams are very suspect. Diagrams are linguistically biased; they abstract arguments out of social contexts; and it is impossible to clearly define and delimit the phenomena they represent. The disadvantages of their use outweigh any conceptual advantages they might provide, and the rhetorical critic and argumentation theorist are enjoined to eschew their use.