正常固结饱和粘性土孔隙水压力性状分析

通过正常固结饱和粘性土的三轴固结不排水试验,分析了在正常固结饱和粘性土在三轴固结不排水应力路径下考虑土应力应变非线性的孔隙水压力方程,根据有效应力路径唯一性原理,推导出适用于其他应力路径下正常固结饱和粘性土的孔隙水压力方程,并通过一个工程实例验证方程的工程实用性。     

先进计算基础设施研究在高校中的实施

随着网格计算技术研究的进一步发展,下一代信息基础设施已逐渐演变成为先进计算基础设施,它将使以计算机为主体的信息处理方式发生根本性的变化.作者通过对国内外先进计算基础设施研究的发展概况的讨论,提出针对我国高校网格研究的主要方向及实施提出一些建议和看法.     

高职院校专任教师职业压力实证研究--基于全国14所高职院校的调查

对全国14所高职院校专任教师抽样调查发现,60%以上样本高职院校教师存在中等程度的职业压力。高职院校教师管理环境压力和科研压力较大,男性教师的学生行为压力大于女性教师,11~15年教龄教师的职业压力最大,国家骨干院校教师职业压力高于示范院校与普通院校。高职院校应兼顾严谨管理与和谐氛围营造,避免管理环境高压化;加强科研管理与服务,避免马太效应的消极作用;加强关注11~15年教龄教师群体,缓解该群体教师"家庭-工作"冲突,以缓释教师职业压力。     

评价高强油井管抗应力腐蚀开裂性能的MTS试验技术

系统介绍了MTS材料试验机在评价油井管抗应力腐蚀开裂性能领域中的应用。通过实测双悬臂梁试样(DCB)加载-卸载柔度闭环曲线可以建立卸载柔度系数与裂纹长度的对应关系,实现了在疲劳预裂时对DCB试样裂纹扩展的有效测控。此外,对硫化物应力腐蚀试验(SSC)后的DCB试样进行加载-楔劈移除-卸载控制与二次疲劳裂纹扩展,可获得楔劈加载的平衡载荷与SSC诱导裂纹扩展量,从而准确测定材料的K1SSC指标。     

Impact of an in-service training in neurocognitive insights on teacher stress,teacher professionalism and teacher student relationships

The stressful nature of the teaching profession is recognised worldwide. Consistent with the recent international attention regarding the connection between neurocognition and education, the study ‘Learn2be@school’ introduced a training for teachers about the occurrence of stress and the relationship between human behaviour and the functioning of the human brain. This study investigates whether neurocognitive insights contribute to stress reduction in the professional and personal functioning of teachers, and focuses more specifically on the impact of the training on their attitudes (attitude level), understanding (knowledge level) and handling (application level) of complex stress situations. Using a quasi-experimental study design with 12 participants and 28 non-participants, data were gathered twice through the use of vignettes and in-depth interviews. The results indicated an impact of the training, not only on the stress experienced by teachers in their professional and personal functioning, but also at the level of the teacher–student relationship and team functioning.     

Stressing academia? Stress-as-offence-to-self at Danish universities

Academic work has traditionally been seen as relatively stress free. However, a growing number of studies have reported increases in occupational stress experienced by university researchers. In order to explain stress among this group, we build on a new perspective in occupational stress research: the so-called stress-as-offence-to-self perspective. In line with this perspective, we have investigated the incongruence between the researchers’ work values and their perceptions of the working conditions provided by the organisation. The analysis is based on a sample of 2127 Danish university researchers. The results show that person-organisation incongruence with regard to freedom and independence in the job, job security, personal and professional development at work, and receiving peer recognition are associated with higher levels of stress among the researchers. Based on these results, we suggest three strategies for managers at universities to mitigate stress among academic employees: a tough recruitment process, a team-based organisation and a proactive human resource strategy.     

重金属胁迫对甘蓝型油菜叶绿素的影响

研究了不同浓度Hg2 、Cd2 、Pb2 、Cr2 处理对甘蓝型油菜黔油12号、黔油14号、黔油18号叶绿素含量的影响.在Hg2 、Cd2 、Pb2 、Cr2 胁迫下,随着重金属浓度的增加,处理时间的延长,油菜叶绿素总量有下降趋势.三个油菜品种中,黔油18号对重金属耐受性最强,黔油14号耐受性最差.     

国外孤独症儿童家庭应激研究现状

孤独症儿童家庭成员面临着特殊压力情境,国外学者对这一人群的应激应对问题已进行了深入而系统的研究,并开始从积极正向的角度探讨家庭的良好适应和复原力建构过程。本文通过回顾国外相关研究,从孤独症儿童家庭应激水平、应激来源、对应激的调适等方面进行系统阐述,并对未来研究做出展望,以期对国内相关临床和理论研究提供参考。     

应力状态分析的计算机实现方法

阐述了用计算机绘制应力圆并进行应力状态分析与计算的方法     

浅谈语音语调学在雅思听力测试中的应用

文章通过探讨雅思听力测试的特点与语音语调学之间的关系,力图寻求雅思听力教学中的最佳方法以提高教学效果及应试成绩.