基于可靠度理论的现役框架结构的维修设计

现役建筑结构经过一段时间的使用，其抗力和荷载效应都与设计时的不同。本文根据实际情况，采用串联分析模型，计算结构体系的失效概率。并通过对结构体系的失效概率直接进行调整，实现对现役结构可靠度的维修设计。以此对结构的安全性进行评估，为框架结构的维修决策提供了依据。     

关于全民炒股和股市泡沫的经济分析

近来媒体关于全民炒股特别是上班族炒股升温的报道,敲响了股市泡沫崩溃的警钟,而推动股市泡沫走向崩溃的,则是全民炒股热和上班族炒股风.中国股票市场的两大缺陷是中国股市动辄形成严重泡沫的重要原因,要彻底消除股市泡沫,必须改变股票供给严重不足和股票需求异常增大的局面,并严肃八小时工作纪律,杜绝全民炒股特别是上班炒股风.在股市钱空的程度日趋严重的形势下,对股市泡沫崩溃及其严重影响必须有清醒的认识,做好充分的准备.     

How much could refuges help us recover from a global catastrophe?

Some global catastrophes (such as nuclear wars, pandemics, or an asteroid collision) might destroy civilization. Some propose building well-stocked shelters constantly staffed with people trained to rebuild civilization in such cases. These “refuges” would have an unimpressive expected cost per life saved, but could conceivably have an impressive expected cost per future generation allowed to exist. From some ethical perspectives that highly value future generations, building refuges may therefore seem like a promising idea. However, several factors significantly dilute the potential impact of refuges, even if the proposed catastrophes occur. Government/private disaster shelters, people working on submarines, and isolated peoples who prefer to be left alone serve these purposes to some extent already. Many proposed catastrophes do too much/too little damage for refuges to help, affect the environment in ways that make refuges largely irrelevant, or otherwise give relatively limited advantages to the people in refuges. In global food crises or social collapse scenarios, refuges would add little to aggregate stocks of population, resources, food, and relevant skills; but they may add something unique in terms of isolation and coordination. These potential benefits of refuges seem the most promising, and may be worthy of further analysis.     

被动防护网在遵义市某危岩带治理工程中的应用

危岩体通常存在于高陡边坡及陡崖上,是山区常见的地质灾害类型之一,在我国每年都造成大量的人员伤亡和经济损失。     

利93区块钻探技术

我公司通过对利93区块所钻井的研究,在总结以往钻井经验的基础上,认真消化和吸收国内同行业的先进钻探技术,结合的利93断地质特点,总结出了一套适应该区块安全快速钻进的实用技术,提高了该区块的钻井速度与钻井质量,取得了良好的社会效益与经济效益。     

宝钞崩坏、白银需求与海外白银流入——对明代白银货币化的考察

明代民间白银货币的大量应用与大明宝钞的逐渐崩坏是相互伴随的,共同促进了白银货币化的进程。从民间开始的自下而上的白银货币化趋势冲击着明代的货币制度,最终明政府不得不以法令的形式认可了白银的货币地位。明代中国产银数量远远不足以满足政府和民间巨大的白银需求,明政府被迫开放海上贸易,凭借外贸出超优势,巨额海外白银滚滚流入国内,满足了明代中后期不断扩大的白银货币需求。     

宝钞崩坏、白银需求与海外白银流入——对明代白银货币化的考察

明代民间白银货币的大量应用与大明宝钞的逐渐崩坏是相互伴随的,共同促进了白银货币化的进程。从民间开始的自下而上的白银货币化趋势冲击着明代的货币制度,最终明政府不得不以法令的形式认可了白银的货币地位。明代中国产银数量远远不足以满足政府和民间巨大的白银需求,明政府被迫开放海上贸易,凭借外贸出超优势,巨额海外白银滚滚流入国内,满足了明代中后期不断扩大的白银货币需求。     

Risky business: How social psychology can help improve corporate risk management

Drawing on research in management theory, risk analysis, and the social sciences, this installment of Business Law & Ethics Corner promotes diversity of thought in corporate governance as not only beneficial to business growth and creativity, but also imperative to managing risk successfully. The article begins with a review of four major worldviews and the risk preferences of each. Next, it examines psychological processes that guide human decision making and greatly influence risk perception. The article then applies these worldviews and psychological phenomena to the case of risk management. It offers a critique of current risk management practices, drawing on evidence from the 2007–2008 financial crisis. The article concludes by promoting increased diversity of worldviews in corporate governance as a way to prevent the same risk blindness that led to the Great Recession.     

采煤塌陷区移民安置问题分析

采煤塌陷区移民安置问题是关系资源型城市可持续发展的重要课题。本文对此进行实地调研,研究说明在移民安置中应将人理放在首位位置,建议建立以就业为先导的采煤塌陷区移民安置模式。     

人工挖孔桩护壁土方坍塌、烂根处理及监理措施

笔者结合工程实践,提出人工挖孔桩孔外土体坍落的两种情况,详细阐述了行之有效的施工措施及监理措施,以供今后施工参考。