中国“城乡一体化”进程中园林规划领域运用“五维理论”的探索研究

中国"城乡一体化"的规划与建设,不能盲目化、西化,要有自己的特色,要有适应中国本土的园林规划理论和方法。风景园林师就像一个大地医生,要去给大地号脉,"五维理论"就像中医中的"人体经络理论"一样,研究环境的一种内在气息、内在本质。运用"五维空间"园林设计理念就是:园林设计应以"三维空间"为基础,安排其在第四维(时间轴)上进行表现,并在第五维(能量场)上调整合理,最终达到整体和谐的景致效果。通俗地讲就是,园林设计不仅要研究可见、有形的景观因素,还要研究不可见、无形的景观因素。     

岩爆实验碎屑分类及其研究方法

 利用中国矿业大学(北京)岩爆过程模拟实验系统,进行一系列的应变岩爆实验。对岩爆碎屑不同尺度,可以采用不同方法提取其信息,包括对面积约为100 mm2的中粒碎屑SEM(扫描电子显微镜)扫描,粗粒碎屑的断口表面形貌三维激光扫描和岩爆碎屑颗粒的尺寸特征测量。测量参数为质量、长度、宽度和厚度。为了便于对不同尺度的岩爆碎屑进行研究的方便,将岩爆碎屑分为粗粒、中粒、细粒和微粒4组,对不同粒组采用不同的研究方法。以花岗岩为例,介绍不同方法计算分形维数的过程及结果。采用倍分长度区间、SEM裂纹图像处理的二值法及小岛法进形分形维数计算时,其线性关系都较好,但不同方法计算获得的分维值不同。根据不同粒组的分形结果,可以分析不同尺度下的岩爆碎屑破碎程度,并为进一步研究岩爆过程的能量变化特征提供基础。     

网络型支架式教学评价

随着信息技术的发展,网络教学作为一种新型的教学形式得到了日益关注,将支架式教学模式恰当地融入到网络教学中是当前有关支架式教学研究的一个重要方向。本文将从课程内容、教学设计、技术设计这三个维度对网络型支架式教学进行评价。     

三维彩色扫描仪在面部整形领域的应用

为使进行脸部整形与美容手术的人在实施真实手术前能预先看到整形与美容后的效果,开发基于三维激光彩色扫描仪的面部整形的虚拟现实软件,采用计算机图象处理技术,先通过扫描,得到患者术前的面部三维图像,根据系统设计的若干操作算子,交互式地对该图象实施多种操作,即对之实施图象变换来完成虚拟手术,实现人的脸部整形与美容.描述三维激光彩色扫描仪的系统结构进,介绍用于面部整形虚拟现实软件的实现过程.     

Assessment of obsessive-compulsive symptom dimensions: Development and evaluation of the Dimensional Obsessive-Compulsive Scale.

Although several measures of obsessive-compulsive (OC) symptoms exist, most are limited in that they are not consistent with the most recent empirical findings on the nature and dimensional structure of obsessions and compulsions. In the present research, the authors developed and evaluated a measure called the Dimensional Obsessive-Compulsive Scale (DOCS) to address limitations of existing OC symptom measures. The DOCS is a 20-item measure that assesses the four dimensions of OC symptoms most reliably replicated in previous structural research. Factorial validity of the DOCS was supported by exploratory and confirmatory factor analyses of 3 samples, including individuals with OC disorder, those with other anxiety disorders, and nonclinical individuals. Scores on the DOCS displayed good performance on indices of reliability and validity, as well as sensitivity to treatment and diagnostic sensitivity, and hold promise as a measure of OC symptoms in clinical and research settings. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

弹簧载荷机构工作原理及装配故障原因分析

对飞机不可逆助力操纵系统的弹簧载荷机构工作原理和力-位移曲线进行了分类阐述。从产品装配过程、轴向装配尺寸和弹簧刚度等方面对常用类型的弹簧载荷机构中位间隙大、初始预紧力不合格、力-位移曲线出现不正常的斜率突变、拉伸压缩状态下特性不一致,以及机构的回中性差等故障的产生原因进行了分析,找出了影响弹簧载荷机构力-位移曲线特性的关键装配尺寸,并提出了控制措施。     

Using comparison data to differentiate categorical and dimensional data by examining factor score distributions: Resolving the mode problem.

Factor-analytic research is common in the study of constructs and measures in psychological assessment. Latent factors can represent traits as continuous underlying dimensions or as discrete categories. When examining the distributions of estimated scores on latent factors, one would expect unimodal distributions for dimensional data and bimodal or multimodal distributions for categorical data. Unfortunately, identifying modes is subjective, and the operationalization of counting local maxima has not performed very well. Rather than locating and counting modes, the authors propose performing parallel analyses of categorical and dimensional comparison data and calculating an index of the relative fit of these competing structural models. In an extensive Monte Carlo study, the authors replicated prior results for mode counting and found that trimming distributions' tails helped. However, parallel analyses of comparison data achieved much greater accuracy, improved base rate estimation, and afforded consistency checks with other taxometric procedures. Two additional studies apply this approach to empirical data either known to be categorical or presumed to be dimensional. Each study supports this new method for factor-analytic research on the latent structure of constructs and measures in psychological assessment. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

包钢结构调整与产品的开发方向

文章对未来5年世界钢材进出口贸易流量进行了评估,根据需求发展内在和外部因素的分析,分品种进行了需求预测。结合包钢的生产现状,详细分析了产业和产品结构状况,为包钢在"十二五"期间及未来结构调整中,重点开发的钢材品种指出了方向。     

Measurement of linear dimensions of pattern elements of micro- and nano-structures under high- and low-voltage scanning electron microscopes

Measurements of the line width of one and the same test object under high- and low-voltage scanning electron microscopes are performed. Translated from Izmeritel’naya Tekhnika, No. 1, pp. 15–17, January, 2009.     

Type D personality and the development of PTSD symptoms: A prospective study.

Psychological trauma and prolonged stress may cause mental disorders such as posttraumatic stress disorder (PTSD). Pretrauma personality is an important determinant of posttraumatic adjustment. Specifically, trait neuroticism has been identified as a risk factor for PTSD. Additionally, the combination of high negative affectivity or neuroticism with marked social inhibition or introversion, also called Type D personality (Denollet, 2000), may compose a risk factor for PTSD. There is no research available that examined pretrauma Type D personality in relation to PTSD. The present study examined the predictive validity of the Type D personality construct in a sample of Dutch soldiers. Data were collected prior to and 6 months after military deployment to Afghanistan. Separate multiple regression analyses were performed to examine the predictive validity of Type D personality. First, Type D personality was defined as the interaction between negative affect and social inhibition (Na × Si). In a second analysis, Type D was defined following cutoff criteria recommended by Denollet (2000). Results showed that negative affectivity was a significant predictor of PTSD symptoms. Social inhibition and the interaction Na × Si did not add to the amount of explained variance in postdeployment PTSD scores over the effects of childhood abuse, negative affectivity, and prior psychological symptoms. A second analysis showed that Type D personality (dichotomous) did not add to the amount of explained variance in postdeployment PTSD scores over the effects of childhood abuse, and prior psychological symptoms. Therefore, Type D personality appears to be of limited value to explain development of combat-related PTSD symptoms. (PsycINFO Database Record (c) 2011 APA, all rights reserved)