某公路滑坡的稳定性分析及防治

公路滑坡治理对保护人民的生命财产、保证交通畅通具有重要意义,目前治理公路高陡边坡的措施有SNS柔性防护技术、喷锚网支护技术、抗滑桩墙体系等。而抗滑桩工程则由于抗滑桩具有适应性强、特别适用于滑面较深的大型滑坡,因有滑坡稳定性和地质环境干扰小、可多桩同时施工、工期较短、抗滑能力强等多方面的突出优点成为滑坡地质灾害治理中一种主要的方法。本文将介绍某公路滑坡的治理经验,阐述了滑坡的形成原因,重点分析了滑坡的地质情况,提出了”抗滑桩＋削坡＋锚杆支护＋挡土墙＋截、排水工程”的滑坡体综合治理方案。     

Research on the rheological properties of pesticide suspension concentrate

This study reports research on pesticide suspension rheology and a new rheological parameter, the relative value of approach, which has great advantage for judging the physical stability of a pesticide suspension concentrate. Experiments showed that the system can form stable dispersions when the value of the relative value of approach (Sr) is less than 0.1.     

从《淮南子》到《诫子书》——“淡泊明志，宁静致远”解读

“非淡泊无以明志，非宁静无以致远”，最早出于西汉刘安编撰的《淮南子·主术训》。后经诸葛亮注入新的思想含义而引用入《诫子书》，遂成为“诸葛亮精神”的重要组成部分之一，并成为中华文明的精神财富得以传承与弘扬。“淡泊明志，宁静致远”的思想，博大精深，它的精髓至少能从哲理性、真理性和进取性诸方面凸现出来。     

碱金属硝酸盐的热稳定性讨论

碱金属的硫酸盐、碳酸盐和氯化物比较稳定不易分解，而碱金属硝酸盐却不稳定。本用热力学原理和方法讨论了这类盐不稳定性的热力学原因，并从理论上分析了碱金属系列热稳定性的变化规律。     

弹跳球运动的研究

建立了弹跳球运动的二维映射关系式，利用非线性动力学的原理和方法，在不同控制参数条件下，研究了系统二维映射式不动点的稳定性．     

金色补血草黄色素提取及稳定性研究

对金色补血草黄色素的提取条件和稳定性进行了研究.结果表明;提取的最佳条件是以pH=5.0体积分数70%的乙醇为提取剂,物料比1g:8m L,在60℃下浸提2.5h,色素对光、热稳定性较好,抗氧化性好,在酸性介质中稳定.     

浅谈影响电视新闻摄像质量的几个关键因素

在确保新闻真实性前提下,个性化行为特征和想象力的发挥、无剪辑拍摄意识的运用以及画面稳定性是影响电视新闻摄像质量的关键因素。     

The Relationship Between Personality Temperament,Communication Reticence,and Fear of Negative Evaluation

This study examined the influence and relationships of the Big Five personality variables of extraversion, agreeableness, conscientiousness, emotional stability (neuroticism), and openness to experience on communication reticence and fear of negative evaluation (FNE). Undergraduates from (N = 336) basic communication or psychology courses completed self-report measures for these variables. Structural equation modeling indicated that only one personality dimension, extraversion, directly predicted reticence, whereas neuroticism was positively related to FNE, and openness was a negatively associated predictor of FNE. The model also showed a strong relationship between FNE and reticence, indicating that FNE moderated the relationship between two of the five personality variables (i.e., openness and neuroticism) and reticence.     

The boundary-spanning role of a cooperative support organization: managing the paradox of stability and change in non-traditional organizations

This project provides an interpretation of how one cooperative support organization, the Nebraska Cooperative Council, discursively functions to help its constituent cooperatives consolidate resources in order to better intersect with organizations in a larger bureaucratic system. In analyzing qualitative data collected through in-depth interviews, surveys, and organizational documents, we found the paradox of stability and change a revealing prism through which to make sense of participants' experiences. We work toward locating and describing how the Council, through its boundary-spanning activities, helps cooperatives manage the paradox of stability and change while protecting their core participatory ideologies. By providing networks of learning, promoting the legitimacy of cooperative forms of organizing, and protecting cooperatives' interests, the Council is an entity helping cooperatives to reconcile their internal requirements for democracy with the external demands of the marketplace.     

Short-term tracking of performance and health-related physical fitness in girls: The Healthy Growth in Cariri Study

Abstract

The main purpose of this study was to track the performance and health-related physical fitness of girls from Brazil's Cariri region. In the “Healthy Growth in Cariri Study”, 294 girls from public and private schools were divided into four age cohorts – 8, 10, 12, and 14 years – and followed for three consecutive years, with an assessment every 6 months. Shuttle run, hand grip, standing long jump, trunk lift, curl-up, 12-min run, and fatness were used to rate physical fitness performance and health-related components on each of six occasions. Tracking was done in a stepwise manner, using auto-correlation, by modelling the individual history of change in performance of each girl, and using Foulkes and Davies’ γ-coefficient. SPSS 18.0 and TIMEPATH were used for data analysis. Auto-correlations evidenced low-to-moderate values in almost all components of performance and health-related physical fitness. Intra-individual tracking analysis showed large variation in all fitness components as a result of a wide spread in individual history of change in fitness performance. Population estimates of γ were low in all tests. Our results show low-to-moderate tracking of physical fitness components of girls. A wide range of intra-individual and inter-variability in fitness development was observed.