Realized EquiCorrelation: a bird’s-eye view of financial stress on equity markets

This article addresses the issue of measuring the level of aggregate financial stress on stock markets, which is a central issue for investors and policy-makers. To this end, Realized EquiCorrelation (REC) is obtained by plugging realized volatility as an input into the Dynamic EquiCorrelation (DECO) model where both the continuous and jump components of realized volatility are considered. An application is provided for the 20 major stock markets over January 2000–May 2014 using intra-day data. The results remarkably pick up financial stress periods.     

页岩的地震属性分析综述

在最近几年里,非常规页岩气和页岩油勘探已经进入公众的视线里,引起大家的注意。这些新的成藏是地球物理学许多新发展的催化剂,尤其是新地震属性的应用。近来,三维地震数据和地震属性技术已经在断层、裂缝方位和密度、储层富集带,可能的水力压裂障碍,孔隙压力,岩石力学以及增产的有效性和优化提供信息。下面介绍的是从三维地面地震资料中获得的信息,这些信息是怎样影响非常规页岩发展的。     

中小学教师职业压力的成因与自我调适

中小学教师承受的职业压力主要来自考试压力、新课改的挑战、工作强度大、角色冲突等几个方面。教师个体的自我调适是缓解压力的关键所在,教师只有合理认知并积极应对,才能变压力为动力,从而提升自身的职业幸福感。     

铁路三线大桥帽梁无支架法施工技术及受力检算

帽梁施工采用无支架法施工相对满堂支架法施工而言,具有施工简便,对地面承载力无要求,节约大量钢管,降低施工成本,缩短工期等优点。文章针对洛湛铁路旺甫1号三线大桥设计出穿心棒无支架法施工帽梁的支撑系统方案,成功地解决了三线大桥因帽梁砼重量大、跨度长而致使常用材料不适合做承托梁的问题,并对支撑系统进行了受力检算。     

The Playful Advantage: How Playfulness Enhances Coping with Stress

Research on playfulness has long focused on children, while the study of its expression in adulthood has only recently been undertaken. This cross-sectional study investigated the interrelationship between playfulness in young adults, perceived stress, and styles of coping with 898 students from three universities. Findings revealed that playful individuals reported lower levels of perceived stress than their less playful counterparts, and more frequently utilized adaptive, stressor-focused coping strategies and were less likely to employ negative, avoidant, and escape-oriented strategies. The results suggested that playfulness serves a strong adaptive function with university students, providing them with specific cognitive resources from which they can manifest effective coping behaviors in the face of stressful situations. Speculation as to the role of playfulness in fostering resilience is encouraged, and further empirical research on the therapeutic benefits of playfulness should be undertaken from a causal perspective.     

论析大体积混凝土的施工温度与裂缝控制

在现代工程中,大体积混凝土的施工技术既复杂又具有严格要求,在整个过程中对施工温度控制具有非常重要的意义。施工中应严格防止混凝土因水泥水化热引起的温度差而产生温度应力裂缝,施工中的裂缝将影响到结构的稳定,在通过实际的住宅项目跟踪观察及通过查阅相关的混凝土施工著作后,对混凝土施工温度,裂缝控制和相关措施进行研究论述。     

“I don’t Care that People don’t Like What I Do” – Business Codes Viewed as Invisible or Visible Restrictions

Research about codes of corporate ethics has hitherto taken a hypothetical, correct meaning of codes for granted. The article problematises the dichotomous categories intrinsic and subjective meanings of codes. I address the question if professionals in finance accept codes of business. The particular mentality of stockbrokers and traders constructs the way they judge restrictions such as company codes of ethics. While neglecting dimensions of ethics beyond known rules, brokers and traders distrust good ethics as a possible end in itself. Many professionals in the financial market perceive efforts to integrate ethical reasoning in work as only means for maximising business opportunities.     

荣地水电站增机扩容工程压力钢管的结构设计

荣地水电站增机扩容工程原发电引水系统主要为总长为2663 m的隧洞，由于隧洞竖井至原钢衬段前的钢筋混凝土衬砌施工质量较差，达不到结构安全运行的要求，因此需对原发电引水系统进行加固处理，经方案比选后，采用竖井段进行埋管回填混凝土加固+下平洞内铺设明钢管的方式进行加固处理，并相应对钢管进行结构设计。     

20Kt/a煅烧焦回转窑耐高温下料溜管技术改造的研究

介绍在大港油田20Kt/a煅烧焦厂煅烧回转窑高温下料溜管的投产使用中,针对出现的焊口开裂、高温下管体变形等一系列问题,通过焊接应力分析、高温温差应力、溜管整体结构受力分析等方法和原理,从整体结构和焊接方法两方面进行技术改造,探讨出符合大港油田20Kt/a煅烧焦60米回转窑使用要求的耐高温下料溜管制作安装方法。