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101.
根据北京公交站点分布情况,建立了解决公交拥挤的数学模型,并通过算法和程序化运算,解决了任意两站点间最佳线路的查询问题。在邻接矩阵相乘的过程中,剔除了与现实生活中不相符合的数据,对邻接矩阵中的行和列进行了选择,同时假设出公汽交通阻抗值,从而有效地降低了算法复杂度,并通过对深度优先遍历递归算法的进一步优化再次降低了算法的复杂度。  相似文献   
102.
提出了一种基于双L型阵的二维测向算法。通过定义新的三维波达方向角,同时利用旋转不变算法获得每一维入射角的独立估计,再由波达方向角之间的约束关系进行配对,提高了测向精度与二维角成功配对概率,改善了双L阵二维测向精度对来波方向敏感的问题。计算机仿真结果表明:所提算法在观测的区域内均具有较高测向精度,特别是在仰角较小时较传统算法其测向精度有较大提高,在低信噪比情况下与传统算法比较提高了二维测向中的角度配对成功概率。  相似文献   
103.
介绍利用拉伸试验机横梁位移数据计算拉伸试样断后伸长率的方法。由试样长度与标距不一致产生的测量偏差,可通过补偿值加以修正,其测量精度与常规测量方法基本相同。  相似文献   
104.
Reviews the book, Beliefs, Attitudes and Values by Milton Rokeach (1968). I believe that Rokeach does not believe that his beliefs about beliefs, attitudes, and values are beliefs. The author seems to believe that he presents in this collection of previously published papers something other than his beliefs. Yet, from his presentation it would appear that there exists nothing but beliefs. Much of the confusion which appears in this book is due to the various ways in which the word "belief" is used. The author states that "the task for psychology is . . . to learn enough about the structure of belief systems to know how to form them, and how to modify them so that they will best increase the happiness and freedom of the individual and his society." As a result of the task the author sees for psychology he has undertaken a number of experiments presented in the papers which make up this volume. A detailed discussion of those experiments seems useless in the light of the fact that they are all based on Rokeach's confusing use of the word 'belief in terms of which he also defines "attitudes" and "values." (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   
105.
106.
"If we understand 'mental health' not as an unsatisfactory and vague theoretical concept but as a reasonably adequate rubric or label for an evaluative psychological perspective on personality… we can go about our business without wasting our efforts on the search for concensus on a unique set of mental health criteria when concensus is not to be had… . What is to be avoided is the surreptitious advocacy of values disguised under presumptive scientific auspices. The lists of psychological desiderata that psychologists have continued to propose, each reflecting the value commitments of its proponent, have this drawback." From Psyc Abstracts 36:02:2IR99S. (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   
107.
Beginning with a model of social perception in which the perceiver is assumed to operate according to the conventional canons of statistical inference, it was hypothesized that trait judgments of groups of individuals represented by facial photographs would match the mean values of these photographs judged individually and that confidence and the amount of information required before a judgment is reported will vary inversely with the variance in the set of photographs comprising the group, and directly with the significance of the judgment for the judge. Using different procedures and measures of the dependent variables, 2 experiments were performed which agreed in supporting the hypotheses. (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   
108.
In this first investigation of genetic and environmental influences on children's values, 271 German twin pairs (50.2% boys) reported their values at ages 7–11 years using the Portrait Values Questionnaire (Schwartz & Rubel, 2005). We distinguished between gender-neutral (conservation vs. openness to change) and gender-typed (self-transcendence vs. self-enhancement) values. Boys differed from girls in the importance given to gender-typed benevolence, achievement, and power values. Gender-neutral values showed moderate (.34) and gender-typed values showed higher (.49) heritability, with nonshared environment and error accounting for the remaining variance. For both sexes, substantial genetic effects accounted for the importance children gave to their respective gender-stereotypical end of the self-transcendence versus self-enhancement dimension. However, dramatic sex differences emerged in the gender-atypical end of the distribution. For girls, low self-transcendence (high gender-atypical values) showed a large (.76) group heritability. For boys, gender-atypical values (high self-transcendence) showed no heritability and a modest (.10) shared environment effect. (PsycINFO Database Record (c) 2011 APA, all rights reserved)  相似文献   
109.
王小平 《包钢科技》2011,37(5):47-49
通过分析冷轧带钢厚度偏差产生的原因,探索和研究包钢酸洗冷连轧机组轧机自动厚度控制系统原理,了解冷轧轧机消除热轧原料厚度偏差和冷连轧机本身的扰动产生的厚差。  相似文献   
110.
A historical review of the literature on efforts to assess strength of moral values led to the conclusion that existing instruments have weaknesses which limit their utility for psychological research. The most important of these weaknesses are: (1) questionable assumptions about the relationship of moral values and moral behavior, (2) a focus on moral abstractions rather than moral behavior in realistic contexts, (3) reliance on subjective and inferential scoring procedures which stress "correct" moral values, and (4) inadequate standardization. It is concluded that moral values are best conceptualized as subjective and individual attitudes whose measurement is most meaningfully achieved independent of a concern with moral behavior and conventional standards of moral evaluation. (2 p. ref.) (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   
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