浅谈住宅渗漏的防与治

针对住宅竣工后经常会出现渗漏的问题,提出了一种有效的防治途径。     

DEA视窗分析在技术创新效率评价中的应用

本文对DEA视窗分析模型进行了介绍,并将其运用于东北三省技术创新效率评价研究。     

低密度奇偶校验码构造及编译码研究进展

低密度奇偶校验（LDPC）码具有接近Shannon限的良 好性能,能有效提高数据传输的可靠性。为提高LDPC码的性能,对码字的研究多集中于构造 、编码和译码这几方面的基础研究。首先简要给出了LDPC码的基本描述,然后对二进制和多 进制LDPC码的关键技术进行了系统归纳和全新分类,分别从构造、编码和译码3个方面进行 了详细探讨,重点对最新的研究成果进行了全面分析和总结,对LDPC码今后的研究具有指导 意义。     

OFDM系统的对数似然比最大化盲频偏估计算法

为了消除短波OFDM通信中的频率偏移问题,对差分OFDM信号进行了分析,并对最大 后验概率（MAP）译码的性质进行了研究,提出了一种似然比最大化的迭代盲频偏估计 算法。由于该算法充分利用了软译码得到的似然比信息,因此可以实现最优信号检测。计算 机仿真证明了该算法的有效性。进行了短波OFDM信号通信实验,得到了实测数据。实测数据 检测结果表明,该算法的误码率性能随着迭代次数的增加而提高,且一发两收系统性能要比 单发单收系统性能至少提高2 dB。     

Herding,Faith-Based Investments and the Global Financial Crisis: Empirical Evidence From Static and Dynamic Models

The purpose for this article is to explore the existence of herding behavior in the context of Shariah-based ethical investments. To this end the authors have employed the highly liquid constituent stocks of the U.S. Dow Jones Islamic Index for the period January 2007 to December 2014. The methodology encompasses both static and dynamic models that capture potential time-varying patterns or asymmetric behavior of herding. Summarizing the results, the authors document significant antiherding behavior that is robust across different formulations and testing procedures. Most interestingly, they observe an asymmetric behavior of the antiherding phenomenon. Results from the dynamic analysis reveal that antiherding tends to be more intense during turbulent periods. The findings may entail useful implications for investors who wish to diversify their portfolios using faith-based investments.     

严寒地区居住建筑节能改造优化模型探究

为推进严寒地区建筑节能进程,通过更经济的节能改造策略适应不断提高的建筑节能要求,针对哈尔滨市某9层住宅楼,以提高围护结构保温性能和改设双向通风窗两种策略建立两类节能模型,利用能耗软件模拟分析两类模型较基本模型的节能性和经济性。对比改用双向通风窗前后的能耗变化情况可知:基本模型节能率提高约15%,每年每平方米节约费用1.87元;第一类模型节能率平均提高约13%,每年每平方米平均节约费用1.42元。与提高围护结构保温性能来达到节能效果的方式相比,采用双向通风窗即可在保证空气品质的同时,获得较好的节能效果。研究结果可为严寒地区的居住建筑节能改造提供参考。     

擦玻璃机械手的方案设计分析

本文是在大量的市场调研的基础上,通过对各种擦窗装置分析比较,采用以机械结构为主,辅以自动化控制的设计一种面向家庭公寓等窗户的双面擦窗器。     

在新农村建设中推行建筑节能设计

在新农村建设的进程中,越来越多的新建建筑出现,而由于缺乏合理的规划及有效的监督,这些新建建筑的节能设计被误解为大大增加建房成本而没有得到有效落实。本文从建筑设计的角度提出通过设置合理的体形系数、控制窗墙面积比、加强外墙保温隔热设计、并注意热桥处保温设计和将新能源与建筑有机结合等方法以推行建筑节能的应用。     

中韩FTA框架下贸易便利化的若干思考

始于2012年5月的中韩自由贸易协定谈判迄今已进行13轮,有望在年底完成谈判.伴随着未来中韩自由贸易区的建立,预期双边贸易稳步增长,贸易自由化程度不断提高,双边90％的产品将实现零关税,关税壁垒的不断消除使得自由贸易步伐加快.但是口岸效率不高、通关程序繁琐、卫生检疫等技术性壁垒都将阻碍要素的跨境流动,因此简化和协调货物在中韩贸易中所涉及的各种程序,已成为两国所追求的一个目标.     

The effects of government capital and liquidity support programs on bank lending: Evidence from the syndicated corporate credit market

This study jointly evaluates the effects of the U.S. Treasury's Troubled Asset Relief Program (TARP), the Federal Reserve's Discount Window (DW), and Term Auction Facility (TAF) on bank syndicated lending during the 2007–2009 financial crisis, using a unique data set that tracks the exposure of each lender in each syndicated credit facility in each year. By comparing lending changes within a group of banks that lend to the same facility of the same firm in the same year, it eliminates the impacts of demand-side factors that often bias the results of empirical studies on bank credit supply. Overall, I find that TARP, DW, and TAF played only a marginal role in increasing bank syndicated lending. By examining lending changes at the facility-lender and firm-lender levels, this study is less prone to the reverse causality problem that is inherent in studies using bank-level data. Therefore, this study complements studies using bank-level data and provides policymakers with a balanced view on the effects of these programs.