球形孔洞膨胀动态问题的弹性-损伤力学分析

研究了材料还没有出现塑性变形、仅含弹性区和损伤区的球形孔洞动态扩展问题．首先通过对弹性区的研究以及初始损伤分析获得弹性区的场量分布,并给出弹性／损伤区交界处的边界连续条件;然后在自相似假设条件下,推导出动态扩展时损伤区需满足的控制方程;最后通过打靶法进行数值求解．数值分析表明,许多材料参数如ν、n、m都对弹性区和损伤区的场量分布有影响．     

用Excel实现单个正态总体均值的假设检验

单个正态总体均值的检验是假设检验中最基础的内容.通过证明两个总体均值之差假设检验的特殊情形和单个正态总体均值检验的一致性,提供了用Excel进行单个正态总体均值的检验的一种便捷方法.     

基于假设检验的自适应粒子滤波红外目标跟踪

在实时性要求较高的非线性非高斯环境中,粒子滤波中的粒子数选取将直接影响红外目标跟踪效果。为此,提出一种基于假设检验的自适应粒子滤波算法。通过假设检验问题中样本容量的选取确定粒子数,解决因粒子数过大造成的时间损耗。实验结果表明,该算法在保证目标跟踪准确度的同时可减少跟踪延时,具有较好的实时跟踪效果。     

“3-1 分栏Web 统计报表”生成技术

总结出了“3．1分栏Web统计报表”的3个基本特征,归结了生成“3-1分栏Web统计报表”要解决的3个关键问题,给出了解决问题的策略,描述了采取的生成技术,包括算法假设与算法设计,并在实际工程中应用．该种生成技术算法复杂度降为,且只进行了一次SQL语句操作,具备良好的效率．     

矿物显微图像中网孔状及针板状成分识别方法研究

矿石的显微图像成分分析是一项具有挑战性的应用研究课题，针对所要求的对某种矿石进行自动识别的任务，提出了一种使用改进的统计假说方法对网孔状纹理成分进行识别的方法；并提出了一种采用Sobel变换、骨架提取以及Hough变换相结合的技术进行针板状纹理成分识别的方法，实验结果表明，该方法是有效的。     

采用统计技术的假设检验方法推断化验室检测差异

假设检验是统计技术较常用的一种分析测定结果进而推断化验室测定的方法、人员、实验室是否存在系统差异的技术。在质量管理中,假设检验具有以小概率事件来推断当工艺方法、原材料、过程参数改变时是否引起总体发生变化的常用方法。本文就某公司的子实验室与总部实验室每月的内外检结果(2004年1~2月)举例进行阐述。     

The acculturation gap-distress hypothesis among high-risk Mexican American families.

The authors tested the acculturation gap-distress hypothesis by examining whether parent-adolescent acculturation gaps were associated with greater conflict and youth conduct problems among 260 high-risk Mexican American families. The authors operationalized acculturation gaps in 2 ways: parent-youth mismatches in acculturation style, and parent-youth discrepancies in acculturation toward both mainstream and heritage cultures. Acculturation gaps were common, but results of hierarchical regression analyses indicated that parent-youth discrepancies in acculturation toward mainstream and heritage cultures were not related to increased conflict or youth conduct problems. Conduct problems were no higher in families in which the adolescent was more aligned with mainstream culture than the parent. Unexpectedly, the authors found more youth conduct problems in families in which the youth was more aligned with traditional culture than the parent. The results call into question the assumption that the more rapid acculturation of adolescents to American culture inevitably leads to distress in minority families. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Omnibus Hypothesis Testing in Dominance-Based Ordinal Multiple Regression.

Often quantitative data in the social sciences have only ordinal justification. Problems of interpretation can arise when least squares multiple regression (LSMR) is used with ordinal data. Two ordinal alternatives are discussed, dominance-based ordinal multiple regression (DOMR) and proportional odds multiple regression. The Q2 statistic is introduced for testing the omnibus null hypothesis in DOMR. A simulation study is discussed that examines the actual Type I error rate and power of Q2 in comparison to the LSMR omnibus F test under normality and non-normality. Results suggest that Q2 has favorable sampling properties as long as the sample size-to-predictors ratio is not too small, and Q2 can be a good alternative to the omnibus F test when the response variable is non-normal. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Dissociation and Internal Models of Protection: Psychotherapy With Child Abuse Survivors.

This article presents strategies for treating child abuse survivors based on a theory of interpersonal protection that integrates research in attachment, developmental psychopathology, trauma, dissociation, and experiential psychotherapy. The theory proposes that abused children do not form internal working models of an effective protector, with the result that they have difficulty defending themselves against interpersonal aggression and internal self-criticism; thus, a core psychotherapy task is to help survivors develop adequate representations of protection. The article provides case examples and describes interventions targeting the client-therapist relationship, other client relationships, client self-criticism, and traumatic memories. The author discusses dissociation as an intervention marker; client verbal and nonverbal feedback to therapist interventions; subselves and internal roles; the "inner critic"; guided imagery, role-plays, and dramatic enactment methods; and directions for future research. (PsycINFO Database Record (c) 2010 APA, all rights reserved)