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针对超超临界汽轮发电机组氢气外漏和内漏的原因全面深入进行分析,按系统分层次进行查找,采取针对性措施进行彻底处理,使发电机的漏氢量大幅度降低到了合格标准,减少了氢气消耗量,降低了氢气爆炸的风险度。 相似文献
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锅炉四管爆漏占火力发电机组各类非计划停运原因之首,严重影响火力发电厂安全、经济运行.总结下电防四管泄漏管理经验,对锅炉四管爆漏原因进行分析. 相似文献
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房屋裂漏是很多工程的质量通病,目前房屋裂漏占建筑质量投诉的七八成.房屋裂漏严重影响了业主的正常使用,给用户的生活带来很大不便,甚至造成极大的损失.本文分析了造成房屋各个部位裂漏原因,对症下药,提出了解决这些建筑物裂漏问题的具体措施,使其得以有效防治. 相似文献
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通过Ⅰ型螺旋板式换热器的解剖,对换热器进行流态分析,对结垢、内漏原因分析,重新设计新型螺旋板换热器,解决生产中出现的瓶颈. 相似文献
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在城市供水中,暗渠暗漏存在着排查难、危害大、存续时间长等特点,给城市的供水和输水部门造成了严重的损失。本文主要从西安黑河水暗渠工程的实际出发,结合具体数据分析了影响暗漏的有关因素,并对防止暗漏提出了一些建议。 相似文献
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气垫式皮带机相比托辊式皮带机具有能耗低、运行稳定可靠等优点,但较长距离的气垫式爬坡皮带机长期运行后会出现沿线撒漏料现象,影响作业质量。本文结合气垫式皮带机设计原理和结构,对气垫式爬坡皮带机出现撒漏料的各种原因进行了探索和思考,并作出尝试性的维修解决方案,力求解决这一设备运行难题,力争使气垫式爬坡皮带机撒漏料程度降到最低。 相似文献
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从空调器管路件裂漏的分析思路、手段、原因及预防措施等方面,对管路件运行过程裂漏失效进行分析与预防进行了阐述,本文章可以指导家用空调器管路裂漏的失效分析及预防。 相似文献
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国产锅炉机组在运行中,排烟温度普遍高于设计值.排烟温度升高,排烟损失增大,从而导致锅炉效率降低,煤耗升高,经济效益下降,本文通过理论分析,并结合现场经验,对引起排烟温度升高的原因从环境、设计、设备、管理等不同的角度进行了分析、归纳,针对不同的起因,提出了相应的措施和建议. 相似文献
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介绍了湿式电滤器的工作原理以及该系统在生产中出现的工艺和电气等方面的问题,并从多方面提出了改造措施. 相似文献
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贸易保护政策差异的原因及对策 总被引:3,自引:0,他引:3
贸易保护政策已经成为当代国际贸易中较为普遍的经济现象,然而在跨越不同行业、国家及不同制度背景下的贸易保护水平却存在较大的差异性。本文从经济发展水平、政府类型以及利益组织对于政府进行“商业游说”三个方面的差异阐述了形成贸易保护政策差异的原因,并以“中欧纺织品滞港”为例分析中欧政府贸易保护政策的差异,提出相应的对策建议。 相似文献
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人口普查中的事后质量抽样调查 总被引:2,自引:0,他引:2
事后质量抽查是世界各国在人口普查中普遍采用的用来评估人口普查登记质量的调查方法,是评价数据质量的重要手段之一.从事后质量抽查的作用、抽样设计、调查方法、估计方法、抽查结果以及与以往相比有何改进等方面论述了2000年第五次全国人口普查中的事后质量抽样调查. 相似文献
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弥尔顿从人出发认识人与神、灵魂与肉体、男女性别的关系,是对基督教文化传统的继承与创新。他强调人的自由意志和人独有的理性与信仰能力,肯定了人自身固有的主动追求至高精神的行为。他的诗作深刻揭示了人在精神层面的本质,而成为人之灵魂的伟大史诗。 相似文献
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《International Business Review》2016,25(2):495-510
We investigate the process by which firms become participants in official programmes of public support designed to promote outward internationalization. This study builds on previous research that has established the distinct factors associated with firms’ awareness and use of public support measures. These earlier studies have also shown that deficiencies within programmes manifest in low participation rates. However, scholars have not extended this reasoning to focus on the underlying processes involved, and have paid little attention to the steps through which firms elect to use public support, and how support operates upon, and within, the firm. In particular, the link between awareness of public incentives towards internationalization and the use of these incentives has been overlooked. General failure to understand this link is a potential source of policy inefficiency, reducing the effectiveness of those public programmes that employ incentives. We pose three research questions to examine the concept of such a link: (1) Do firms select public incentives that compensate for a lack of resources or capabilities in their possession? (2) Do firms react primarily to internal or external exigencies, for example, internal financial constraints or, rather, are they responding to unfolding circumstances, such as the more demanding market conditions experienced on internationalization? And (3) do firms use public support to “externalize” the increased risk to which they are exposed as internationalization proceeds, and thereby protect their external activities and investments from loss?The process that firms go through to apply for any type of public support is normally two-staged. Firms first become aware of incentives and then decide whether or not to use them. This process can be handled empirically using a Heckman Selection Model, which we apply to explore our research questions using survey data collected from a sample of Portuguese firms. We find that the greater are the internal limitations of these firms with respect to resources and capabilities and the more demanding are the conditions in which internationalization takes place, then the greater is the use made of public support. We find that awareness of the availability of support is promoted by firms’ in-house resources and capabilities and, at the same time, is positively associated with more demanding conditions of internationalization. The use of public support appears to be associated with the opportunity cost to the firm of public incentives, and with the increased risk inherent with internationalization. These results point to the existence of important sources of inefficiency within the process of application for policy measures, particularly with respect to the link between awareness and use. The use of public support is inversely associated with the opportunity cost to the firm of the resources deployed to apply for public incentives and, for firms with greater resources and capabilities, associated positively with the increased inherent risk of internationalization. We find evidence that it is the firms with greater resources and capabilities that predominate in the application for public incentives, allowing us to infer from the data that the typical recipient pursues more risky modes of entry, or selects locations with higher levels of risk, because of the availability of public support. These results point to the possible existence of important sources of inefficiency within the process of application for policy measures, particularly with respect to the link between awareness and use. This behaviour is quite distinct from the search for return on commercial investments and, therefore, is indicative of the possibility of social loss within this public policy intervention. 相似文献
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我国是世界上自然灾害最为频繁的国家之一。灾害种类多、频度高、分布广、损失大。2003、2004、2005年农业成灾面积占播种面积的比重分别为21.33%、10.61%、12.84%。近几年灾害造成的粮食损失每年都在400亿公斤以上,经济损失每年都在600亿元以上。种植业保险是降低种植业风险的有效手段,伴随灾害而来的巨大损失使越来越多的农民保险意愿日益强烈。在这种情势下,种植业保险却出现了日益萎缩的怪现象,陷入了"供给不足,需求有限"的困境。笔者对鄱阳湖湖区进行了实地调查分析,以求解决种植业保险的供给与需求矛盾。 相似文献
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随着改革开放的深入,我国“三农”问题日渐突出,并且短期内不会消失。为解决“三农”问题提供真实、有效而全面的信息,是新时期农村统计的基本任务。本文通过分析总结现行农村统计调查体系存在的各种矛盾和问题,分别从制度体系、组织体系和方法体系等三个方面提出建立一套适应我国政府管理体制的农村统计调查体系。依据这一新型的农村统计调查体系,全面、及时而有效地搜集并提供关于“三农”问题的调查数据。在未来实际应用与改革过程中出现的新问题,也可以在该体系的整体框架下予以解决。 相似文献