建筑施工混凝土裂缝的形成及修护

建筑施工混凝土裂缝普遍存在建筑物中。根据多年的现场施工经验及查阅相关文献资料,从形成原因、修补方法及防护措施3个方面对混凝土裂缝进行分析。以期对混凝土裂缝问题的解决有所帮助。     

Targeted characteristics and use of socially marketed preventive health goods: evidence from condoms in sub-Saharan Africa

Social marketing is a popular method for allocating targeted publicly funded preventive health goods in poor countries. However, low demand among targeted groups may inhibit take-up relative to non-targeted groups, ownership may not result in use, and there exists little large-scale evidence on how use of socially marketed goods varies by targeted characteristics. I assemble national household survey data from 27 sub-Saharan African countries to examine how use of one of the most common socially marketed preventive health goods (i.e. male condoms) varies by the main targeted characteristics (i.e. low income, low educational attainment, and high HIV risk).

The results suggest that the majority of condoms used are socially marketed condoms, engaging in transactional sex is associated with an increased likelihood of using a socially marketed condom brand, and low-income/low educational attainment are not associated with increased likelihoods of using socially marketed brands. The fact that distribution targets low socioeconomic status groups and relative use remains low suggests that weak demand for condoms among these groups inhibits use. Policymakers should consider mechanisms to increase demand and to further refine targeting efforts.     

谈工程机械用的橡胶密封材料

橡胶密封件是密封装置中的一类通用基础元件,根据工程机械用的橡胶密封材料的功用特点,首先对机械用橡胶密封材料密封失效泄漏的原因进行了分析;介绍了机械用橡胶密封制品材料的种类及用途;以及橡胶密封材料在机械上的应用;同时指出了机械用橡胶密封材料的装用与失效的预防措施。     

计算机网络安全问题及其防范措施

随着计算机技术和现代通信技术的不断发展及相互融合,计算机网络的应用得到了迅猛的发展。网络新技术和新产品不断出现,加速了数据流和信息流的传递效率,随之而来的网络安全保密问题也日益突出,需要人们努力加以解决。     

论政府融资平台的贷款风险及对策

2008年下半年以来,地方政府融资平台贷款飞速增长,由于其政府背景的特殊性,银行面临贷款主体、贷款担保、贷款偿还、贷款管理等多种风险,为防范和化解地方政府融资平台贷款风险,应严格按照监管要求,采取各种有效应对措施。     

普通干线公路沥青路面预防性养护技术探讨

本文基于预防性养护理论界定及其在沥青路面养护中的规律、特点,进一步阐述路面病害与成因,即松散、坑槽与裂缝。并探讨相关的养护方法,如灌缝、雾封层、同步碎石封层等。     

浅析同步碎石封层技术在公路预防性养护中的应用

随着公路建设需求升级,同步碎石封层受到关注,应用增多。研究发现,该技术相对成熟,主要用于公路养护。该技术之所以推广范围广,是因为利用同步碎石封层,可以持续强化公路养护效果,科学完成荷载传递,在此前提下,提升路面整体强度。本文将在该技术作用和特点的基础上,总结碎石封层应用策略,以供后续借鉴、参考。     

信用预防性行政诉讼的价值证成与制度构建

为信用执法相对人提供事前、事中、事后相衔接的全方位、多层次权利救济体系是信用法治应有之义。我国现行行政救济制度的事后性弊端使得其对信用执法相对人重大权益的保护十分不利,亟须构建预防性行政诉讼制度。信用预防性行政诉讼具有契合法治理念、满足依法行政要求、弥补行政救济漏洞以及适应法律全球化趋势等多重价值。构建信用预防性行政诉讼制度需要更新行政法相关理论,理性应对行政诉讼制度困境,提升司法适用能力和水平。