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1.
关于次(反)自共轭矩阵的几个性质 总被引：6，自引：0，他引：6
给出次(反)自共轭矩阵的定义，按定义并运用旋转矩阵，给出次(反)自共轭矩阵的一些性质．首先证明次自共轭矩阵A，B的和，实数k与A的乘积，A的2^k次幂及A^-1仍是次自共轭矩阵；其次给出次反自共轭矩阵的一些与次自共轭矩阵类似的性质和它的一个特殊性质，最后讨论次自共轭矩阵与Hermite矩阵之间的关系并给出任意A可表为一个次自共轭矩阵和一个次反自共轭矩阵之和的结论． 相似文献
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宋乾坤 《湖州师范学院学报》2002,24(6):10-13
对于给定的nv阶复矩阵A，给出了几个直接由A的元素迅速确定其稳定度的一些新判据，从而改进和推广了已有的结果。最后给出的例子表明，此方法简捷，具有一定的实用性。 相似文献
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本文介绍了由一个n阶方阵A构造出一个C^kn阶矩阵Mk(A)的方法，给出了矩阵Mk(A)的一些重要性质，讨论了Mk(A)与A的关系。 相似文献
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本文推广了A.F.Horadam和A.G.Shannon定义而由R.A.Jeannin给出了一系列性质的一类Pibonacci，Lucas函数，相应地讨论了其一些性质． 相似文献
7.
张桂霞 《焦作教育学院学报》2002,18(1):62-64
本给出如下一类抽象双曲方程解的爆破性条件，PWu A1W A2Wt N^*g(NW)=0，其中P，A1为对称正定线性算子，A2为对称非负线性算子，N为某一线性算子，g为非负性已知函数。 相似文献
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对n阶矩阵A，B，本文从矩阵元素、分块矩阵、函矩阵三个不同的角度，给出了矩阵AB七A有相同特征多项式的八种证明方法。 相似文献
10.
关于图方程A(H)=n的讨论，重点是研究A(H)=2及A(H)=3的图H及其母图的性质，这就需要研究不同类型的A(H)=3的图。本文给出了含有一个一度顶点的满足A(H)=3的图。 相似文献
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中华民族的伦理文化和道德精神源远流长，博大精深，其中蕴涵着丰富的父慈子孝、兄爱弟悌的家庭责任伦理；修己安人、仁者爱人的人际责任伦理；重义济世、敬业乐群的职业责任伦理；天下兴亡、匹夫有责的社会责任伦理；民胞物与、爱惜万物的环境责任伦理等责任伦理思想。在社会主义市场经济条件下，要弘扬中华民族的责任伦理思想，强化责任伦理意识，这实际上是修整人的心灵秩序，培养人的主体意识和道德自律精神，提升人的道德品质和精神境界，从而为构建社会主义和谐社会提供道德精神支撑和责任伦理基础。 相似文献
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赵春林 《洛阳工业高等专科学校学报》2001,11(2):37-39
分析了工矿企业铁路的特点，简要介绍了我国内燃机车的发展以及国内主要调车 机车的主要型号、内燃机车基本参数计算方法。提出了工矿企业铁路在内燃机车选型时应考 虑的因素。 相似文献
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杨文明 《深圳信息职业技术学院学报》2007,5(2):78-80
如果在一个指定XY平面进行加工的程序,经过指定旋转中心、旋转轴方向和角位移进行三维坐标变换,则可在任意的一个理想平面上进行加工。这对于用数控铣加工中心机床进行的三维加工编程非常有用。 相似文献
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针对国内中小型软件开发团队的实际情况,提出了一套实用的软件配置管理系统解决方案,并介绍了该配置管理系统运行平台的搭建方法和核心配置管理策略。 相似文献
15.
Kazimierz ZieliŃski Tomasz Werka W. Jeffrey Wilson Eugeniusz Nikolaev 《Learning & behavior》1995,23(4):438-446
Effects of extended training (nine sessions, 50 trials each) on two-way avoidance response latencies were studied. For each rat, auditory and visual warning signals (CS) were presented on separate trials, either according to a Gellermann series or in 25-trial blocks. Intermittent presentation of the two kinds of trials yielded shorter latencies and higher levels of avoidance performance in response to the noise CS than in response to the darkness CS. Presentation of trials in blocks revealed stronger response-eliciting properties of stimuli presented during the second half of the session than of those presented during the first half. A significant decrease of avoidance performance in the early portions of the delay period, an index of inhibition of delay, was obtained on auditory trials presented in the second half of the sessions. Results indicate that strong fear of the warning signal is required for inhibition of delay of avoidance responses. 相似文献
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Pigeons were trained to symbolically match comparison stimuli to either visual sample stimuli presented on a center key or to spatial sample stimuli presented on side keys. Tests were carried out in which visual and spatial cues were simultaneously presented in compound and short-term memory was probed for either visual or spatial information. Symmetrical interference with the matching of visual and spatial components of compounds was found when the visual and spatial cues were presented on separate keys. However, when visual and spatial cues were superimposed on the same side key, no interference was observed relative to element control tests. Discussion of these findings focuses on accounts in terms of limited processing capacity, coding decrement, and receptor orientation mechanisms. 相似文献
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本文利用回归分析建立数学模型,从预测模型中得到服装流行要素的预测集合,再通过趋势分析得到合理的服装流行要素(流行趋势),最后,通过企业的服装辅助设计应用实例对该模型进行了验证,并提出近期最佳服装流行色。 相似文献
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给出了求解限定顶点个数为P的最大割问题的一种近似算法,讨论了它的性能保证,利用Pipage技术,为最大割问题设计出了0．5-近似算法． 相似文献
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The purpose of this study was to examine the redundancy effects obtained when spoken information was duplicated in writing during the learning of a multimedia document. Documents consisting of diagrams and spoken information on the development of memory models were presented to three groups of students. In the first group, no written text was presented. In the second, written sentences redundant with the spoken information were progressively presented on the screen while in the third group, these written sentences were presented together. The results show that whatever the type of text presentation (sequential or static), the duplication of information in the written mode led to a substantial impairment in subsequent retention and transfer tests as well as in a task in which the memorization of diagrams was evaluated. This last result supports the hypothesis that the visual channel is overloaded as the cognitive theory of multimedia learning suggests. 相似文献
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Bom Mo Chung 《Asia Pacific Education Review》2000,1(1):5-11
The predicaments which the industrial age of the twentieth century has left with us are briefly discussed, namely nature in
peril, man in crisis and nation at risk. It is argued that these predicaments are brought upon us by the predominantly analytic
thinking of the past century represented in the various forms of dichotomize such as mind and matter, man and nature, East
and West, etc. It is, then, asserted that the twenty-first century should an age of synthesis, which the education for synthesis
are specifically highlighted and discussed: the philosophy of the whole person, the building of sequentially broader self-identities,
and strategies of conflict solution.
Editor’s note Address presented at the First International Conference
Editor’s note Address presented at the First International Conference
Editor’s note Address presented at the First International Conference
Editor’s note Address presented at the First International Conference
Editor’s note Address presented at the First International Conference 相似文献