谈谈当前我省消灭无标生产工作的情况和问题

总结甘肃省开展消灭无标生产工作带来的变化，分析提出工作中存在的新情况、新问题及其对策。     

系杆拱桥拱肋现浇施工支架设计及内力验算

文章结合黎湛铁路河湛段新增二线工程平坡仔中桥项目的施工实践,阐述了下承式钢筋混凝土系杆拱桥的拱肋现浇施工支架的设计,并进行了受力验算,以期对其他类似工程的施工提供借鉴。     

铁路桥连续刚构边跨现浇段的吊架设计及受力检算

采用挂篮施工的连续刚构边跨现浇段的支架形式多种多样,其设计目的是施工简便、安全牢固、确保质量及节约成本。在遂渝二线铁路薛家坝涪江左线特大桥连续刚构梁边跨现浇段施工时采用型钢吊架支撑,吊架分别利用原施工悬浇节段的挂篮及在墩顶预埋工字钢作支承点。吊架施工现浇段不仅结构简单、施工方便,而且在安全、质量及效益方面均取得了很好的效果。文章对型钢吊架的设计、施工方法进行了详细介绍,并对吊架进行了受力分析及验算,验证了方案的可行性,为以后同类桥型的施工提供参考。     

建筑材料的质量控制和现场管理

建筑材料作为建筑工程的重要组成部分，其质量优劣直接影响到建筑产品的质量、安全、美观、经济。文章结合监理的实践体会，介绍了建筑材料质量控制在监理过程中的重要意义，提出了质量保证体系和控制依据，并分析了材料进场前、进场、进场后在管理、检测等方面的具体监理措施和方法，以寻求控制材料质量，保证工程质量。     

C程序设计中缓冲区溢出问题

C语言对数组边界不进行检查，这容易导致缓冲区溢出，可能使程序运行失败、死机，甚至被利用或攻击。本文分析了在C程序设计中存在的缓冲区溢出问题和潜在的危险性，提出了自己的看法。     

Optimal Commodity Promotion when Downstream Markets are Imperfectly Competitive

We investigate the optimal collection and expenditure of funds for agricultural commodity promotion in markets where the processing and distribution sectors may exhibit oligopoly and/or oligopsony power. The conditions that characterize optimal advertising intensity under perfect competition for funds generated from either per-unit or lump-sum taxes do not, in general, hold when marketing is imperfectly competitive. Simulation analyses show that imperfect competition always reduces farmers' optimal advertising expenditure and that an imperfectly competitive marketing sector may capture half or more of the benefits from the funds that are expended.     

中国财政支出结构与经济增长的Granger因果关系分析

财政支出与经济增长之间有联系,那么,财政支出结构的变化是否会对经济增长起到显著的作用,它们之间的关系如何,就值得研究。可运用单位根、协整及Granger因果关系检验等计量方法,分析中国财政支出结构与经济增长的关系。     

Are stock markets really so inefficient? The case of the “Halloween Indicator”

The old and simple investment strategy “Sell in May and Go Away” (also referred to as the “Halloween effect”) enjoys an unbroken popularity. Recent studies suggest that the Halloween effect even strengthened rather than weakened since its first publication by Bouman and Jacobsen (2002). We implement regression models as well as Hansen’s (2005) “Superior Predictive Ability” test to analyze whether stock markets are really so inefficient. In line with the predictions of market efficiency, our results reject the hypothesis that a trading strategy based on the Halloween effect significantly outperforms.     

Instructional Manipulation Checks: A longitudinal analysis with implications for MTurk

Instructional Manipulation Checks (IMCs) assess respondent behavior by, for example, asking participants not to answer a trick question. We find IMCs can be used to detect problematic response behavior in longitudinal surveys. This is important because a Latent Class Analysis based on IMC-failure in the two reported studies reveals that between 9% and 12% of respondents can be labelled Inattentive Stayers at the first survey-wave and between 13% and 17% at the third wave. The tendency of Inattentive Stayers to remain in the panel is particularly relevant for online panel services such as MTurk, with workers participating in many surveys over longer time-periods. We find IMC-failure to be mitigated by a warning to respondents that their attention will be checked early in the survey, but not by repeated exposure to IMCs, or a timer leaving questions on the screen longer. Respondent personality also plays a role in IMC-failure, which implies persistency of undesirable respondent behavior.     

我国资源核算演变历程问题及展望

分析了资源核算问题提出的背景 ,探讨了我国资源核算演变的历程及存在的问题 ,并对资源核算发展趋势进行了预测