橡胶支座中橡胶板基于抗压弹性模量的寿命预测

橡胶板是橡胶支座的重要组成部分,对橡胶支座以及建筑物整体结构的稳定起着重要的作用。对橡胶板的使用寿命做出预测,提出更换周期,有助于工程做好更换计划。以抗压弹性模量对橡胶支座中占绝大部分的橡胶板分别作80℃,90℃以及100℃的加快老化试验。结果表明,在不考虑其它因素下通过阿伦尼乌斯方程拟合推导出橡胶板在年平均温度为23℃下的使用寿命在37．60 a之间。     

高大平房仓储粮减损增效探索

高大平房仓储粮第一年秋、冬低温季节利用小功率风机进行下行式机械通风降低基础粮温;储存稳定期在确保储存安全的前提下,进入第2年、第3年秋冬季节则采用自然通风;气温上升季节对仓房实施隔热密闭、仓顶喷淋等一系列控温措施,在低能耗的情况下,可有效控制粮温,且大大减少了因通风产生水分散失而造成的储粮损耗.经过3年的储藏,损耗率低至1.42‰,且稻谷品质达到要求,降低储粮保管费用.     

是土地供应量与房地产税赋提高了房价吗

自分税制实施后,“土地财政”成为我国地方政府获取收入以支撑财政支出的主要选择,而与此同时房价也在不断上涨。中央政府从民生角度要求地方政府对房价实施调控,地方政府则主要通过调整土地供给量和房地产税税赋来施加影响。土地供应量和税赋会影响供需双方从而影响房价,反过来房价又会影响税收收入及开发商对土地的需求,进而影响社会民生。本文对我国东、中、西部地区住房价格和土地供给量、房地产税税赋之间的关系进行分析,探讨各地区的住房价格上涨原因。通过构建住房价格和土地供给量、房地产税税赋之间的PVAR模型,利用格兰杰因果检验、脉冲分析和方差分解方法来透视地方政府行为对住房价格的影响。分析结果显示,地方政府行为和房价之间存在着联动关系,但在推动住房价格上涨的原因上存在着区域差异：在东部地区,土地供应量影响房价;中部地区,二者联合推动了房价上涨。而在西部地区,房地产税税赋对房价的影响明显。在政策建议上,对地价推动房价的地区要从丰富住房来源和数量入手,而税赋影响房价的地区则要完善相关税制改革。     

金融创新对金融稳定的影响机制研究——基于资产证券化的微观金融视角

本文在改进现有文献的研究模型的基础上,从微观金融视角研究单个银行机构参与资产证券化业务的决策行为及决策效果,从包括资产证券化业务在内的金融产品创新对金融稳定的影响的角度,分析了资产证券化与次贷危机之间的关系.研究发现,资产证券化放大了银行的财务杠杆加剧了资产价格的波动,从而影响金融稳定;资产证券化将资本市场、信贷市场和实体经济紧密联系起来,促使资本市场上的波动演变为实体经济的波动;而当银行在危急中获得救助时,并不会增加对实体经济的融资,反而会更加惜贷并倾向于增加其在中央银行的储备资金或持有证券化资产,从而可能导致金融危机演变为经济危机.因此,有效的救市措施应是从资产方处理银行的“问题资产”,而不仅仅是从负债方解决其融资来源问题.     

Pathways out of poverty in lagging regions: evidence from rural western China

How to reduce poverty in lagging regions remains much debated and underserved with solid empirical evidence. This study illustrates an empirical methodology to analyze the pathways households followed out of poverty and to explore their potential in the future using 2000–2004 rural household panel data from two lagging provinces of China, Inner Mongolia and Gansu. It finds that rising labor productivity in agriculture has been key in understanding poverty reduction in rural lagging areas of these provinces and that it still holds much promise. Circular migration has also been important in Gansu, though less so in Inner Mongolia. On average, rural diversification has not proven to contribute much to poverty reduction and income transfers and agricultural tax abolishment have only helped at the margin. The findings from these two case studies highlight that the scope for reducing poverty in rural lagging regions can still be substantial in agriculture, also when nonagriculture drives national growth.     

护理专业课程中教与学策略的探讨

从教与学的角度,探讨在医学教育课程知识的传授过程中,应把握教与学的和谐统一;根据教学内容选择授课方式及媒体资源;根据讲授知识的难易度设定授课目标;授课结束时,运用适当的方式对学生的学习效果进行评价。     

玉米联合收获机全液压工作系统浅析

文章针对我国玉米收获机液压工作系统的发展趋势,对全液压工作系统的工作原理、构成和特点等进行了论述。并根据玉米收获作业的实际工况条件,对可能产生的各种液压故障成因进行了分析,提出了全液压工作系统的维护要点。     

后金融危机时期解读我国宏观经济政策

在国际金融危机持续蔓延时期,各国出台相应政策扭转不利局势。我国政府在2008年和2009年也出台了多项宏观政策来应对危机,并取得了一定的成效。危机已过,余波未平,在后金融危机时期,这些政策发挥着怎样的作用,今后宏观调控的方针和措施是什么?本文将针对这些问题一一解读。     

高校校园文化建设的理性思考

总结了校园文化的内涵和特征,对高校校园文化,包括物质文化,精神文化,制度文化的建设,进行理性的思考和探讨。     

Corporate social responsibility in china: an analysis of domestic and foreign retailers' sustainability dimensions

In the past decade, a sizeable body of literature has built up on the concept and characteristics of corporate social responsibility (CSR) in Western countries, where it has also been referred to as sustainability. More recently, attention has grown for CSR in emerging countries. Remarkably, China has hardly been studied so far. This paper aims to help fill this gap by considering, against this background, the CSR notion in China, through an exploration of a small sample of large retailers in China, both Chinese and non‐Chinese companies. The analysis of CSR/sustainability dimensions, as communicated by these large retailers in both the Chinese and the English language, shows substantial differences between the Chinese and international contexts. Interestingly, the largest divergence can be found for international retailers between their Chinese and corporate attention for CSR (so home versus host settings), most notably in the case of Carrefour, and to a lesser extent Wal‐Mart. In the Chinese context, there are differences between the Chinese and international retailers as well (so domestic versus foreign firms), with the former reporting more on economic dimensions, including philanthropy, and the latter more on product responsibility – contentious labour issues and the environment receive relatively limited attention in both groups in China. The paper concludes with a discussion of the implications for research and practice. Copyright © 2008 John Wiley & Sons, Ltd and ERP Environment.