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1.
扼要地介绍了高性能结构陶瓷材料的研究,开发及其在工程技术领域的应用概况,并对我国高性能结构陶瓷的近期发展重点和关键技术作了简要的论述。  相似文献   

2.
节能项目融资租赁及其相关问题的探讨刘雪梅,张蓉随着我国市场经济体制的逐步建立和完善,企业融资渠道和交易方式呈现多元化、多样化趋势。自从八十年代初,以节能设备租赁和节能项目融资租赁为主要目的的现代租赁业务在我国开始出现,迄今已为许多企业所认同和采用。中...  相似文献   

3.
沸石和膨润土的结构、改性及在废水处理中的应用   总被引:6,自引:0,他引:6  
介绍了膨润土、沸石的结构、改性方法及其机理,并对其在废水处理中影响处理效果的主要因素作了简要阐述,提出了研究中存在的问题及今后进一步研究的方向。  相似文献   

4.
燃油锅炉结构及其运行关键技术问题探讨   总被引:1,自引:0,他引:1  
燃油锅炉结构及其运行关键技术问题探讨刘德春,庐卫伟(珠海华丰集团股份有限公司)(珠海市劳动局)1.燃油锅炉结构问题探讨(1)燃油锅炉整体结构问题现有燃油锅炉大体分为干背式和湿背式两大类。无论哪一些锅炉(D≤6t/h),其锅炉热效率一般设计在83%~8...  相似文献   

5.
简述了发动机对点火系统和火花塞的基本要求,较为全面的介绍了国内外火花塞发火端的各种结构型式,性能特点及其研制情况,特别指出;加强火花塞火端结构的研究是开发新型火花塞的重要环节和途径。  相似文献   

6.
阐述了国际间特别是美、日等国对结构陶瓷粉体开展的市场竞争情况,及其对当关SiC陶瓷领域所起的促进作用  相似文献   

7.
国产汽轮机中的汽封结构及其系统存在若干比较严重的问题,影响到国产汽轮机的运行经济性、可靠性和灵活性;和汽轮机通流部分的其它改进项目比较,改进汽封及系统其相对性能价格比较高,投资回收年限短。本文简述了汽封结构及系统设计中存在的一些主要问题,并提供了若干改进措施。  相似文献   

8.
介绍了内展翅片管及其换热器的原理、结构、特点及其实验、应用情况,对内展翅片管换热器与普通光管及传统的外翅片管进行了比较,提出了针对特殊的气——液热交换场合使用内展翅片换热器的合理性。  相似文献   

9.
本介绍了用8031单片机构成的磁电机性能参数测试仪的电路结构,工作原理及其抗干扰措施,并给出了仪器程序总体框图。  相似文献   

10.
锅炉是个有机的整体,单个部件采用新技术,最后会导致整个机组的飞跃,本文阐述了两种有前途的新型除渣设备的结构、特点及其工作原理。  相似文献   

11.
This study investigates the impact of political connections on firm efficiency as well as its mechanisms in Chinese renewable energy firms. The empirical results reveal a direct negative association between political connections and firm efficiency and an indirect correlation through political resources. The results indicate that the higher the level of political connections, the stronger the relationship between political connections and firm efficiency. Our findings also indicate that the impact of political connections is different between state-owned and non-state-owned firms. For state-owned firms, political connections are negatively correlated with firm efficiency and government subsidies are not beneficial for state-owned firms in promoting productivity. As for non-state-owned firms, there is a ‘double-edged sword’ effect of political connections on firm efficiency. On the one hand, political connections are associated with lower firm efficiency, but on the other hand, political connections can alleviate the adverse effects of financing constraints on non-state-owned firms.  相似文献   

12.
宿洪涛 《中国能源》2013,35(2):35-36,40
文化融合模式没有定式,关键是能否达到同向、同道、同行,实现"形神合一",发挥重组企业"1+1>2"的效果。山东能源集团根据自身的特点采取了传承包容与创新超越并重,强势统一与循序渐进同步,快节奏推进、分阶段融合的策略,开创了大型重组国企文化融合的山东模式。  相似文献   

13.
杨军 《中外能源》2013,18(5):1-3
党的“十八大”报告提出“大力推进生态文明建设”,首次把生态文明建设提升到与经济建设、政治建设、文化建设、社会建设相并列的高度,“五位一体”地建设中国特色社会主义.从环境保护到建设生态文明的转变,为国有企业一直肩负的责任增加了新的内涵,国有企业必须成为建设生态文明的主力军、引领者和推动者.国有企业需要通过走生态文明科学发展之路,来满足人民群众日益增长的生态诉求,否则将失去企业生存和发展的基础.同时,走生态文明科学发展之路,也是国有企业在新一轮国际竞争中赢得主动的法宝.国有企业要把生态文明建设贯穿于企业生产始终,抓住契机促进企业技术创新,把生态文明建设作为提升国企形象的重要途径,将生态文明寓于企业文化之中,以实实在在的行动推进绿色发展、循环发展、低碳发展,为早日实现“中国梦”做出自己的贡献.  相似文献   

14.
China is quickly building up its nuclear power capacity while the hailed nuclear renaissance in the United States has been largely stagnant. The political and industrial structures explain the divergent paths. This paper draws lessons from the French experiences in deploying nuclear power and uses the lessons in comparing Chinese and U.S. policies. An authoritative political system and state-owned utility industry allow China to emulate the French approaches such as government-backed financing and broad-scale deployment with standardized design. The democratic political system and fragmented utility industry, and the laissez-faire ideology in the United States, on the other hand, are unfavorable to a nuclear renaissance. The prospect of a nuclear revival in the United States remains highly uncertain.  相似文献   

15.
马晓微  魏一鸣 《中国能源》2009,31(12):28-32
本文分析讨论了我国能源投资规模、融资渠道的变化;能源融资机制与体制的历史沿革;以及当前我国能源投融资所面临的机遇与挑战。研究最后指出,当前我国能源行业面临的挑战主要有以下几个方面,在投融资监管机制、法律法规体系完善、金融市场发育程度、能源市场化程度、投资渠道和资金结构等方面都存在很大的挑战。  相似文献   

16.
通过对我国房地产企业开发绿色建筑的现状和问题的调研,发现目前我国房地产企业对绿色建筑的认识程度明显不同,开发进程也参差不齐.进一步分析后发现,市场需求和增量成本是影响开发决策的最主要因素,购房者不认同和成本增加是开发中面临的主要障碍,土地、融资、税收优惠是企业最期望的激励政策.在供应端和需求端实施双向激励,强制执行绿色建筑评价标准的,将绿色建筑开发纳入国有房地产企业负责人业绩考核,加强绿色建筑发展相关支撑能力建设,则是现阶段实施绿色建筑的可行措施.  相似文献   

17.
Based on a natural experiment of foreign investment access relaxation, this paper investigates impacts of foreign institutional investors (FIIs) on energy firms' innovation. It is still unclear the real effect of FIIs on energy firms' innovation in the literature. We detect a significantly positive relationship between foreign institutional investors and innovation outputs of energy firms using firm-level data. Three possible mechanisms driving our findings are explored. Foreign institutions increase the proportion of R&D expenditures in revenues, limit the scale of related party transactions to improve corporate governance, and widen the pay gap within firms to stimulate the efficiency of human capital. Our main findings are weakened in state-owned companies with high financing constraints. Jointly, our findings offer clear policy implications to emerging markets by identifying the effects of FIIs on energy firms' innovation.  相似文献   

18.
节约能源是中国基本国策,省委、省政府对节能工作高度重视,明确提出“十一五”末单位GDP能耗下20%的奋斗目标。随着江西省工业化、江西城市化进程的进一步加快,国民经济增长对能源的依赖程度逐步增强。经济的发展离不开能源,但能源高消费也将给社会带来巨大的负面影响。因此,优化能源结构、提高能源利用效率,对促进国民经济向资源节约型社会转变具有十分重要的意义。那么优化能源结构到底在多大程度上影响到能源效率?文章根据1985—2008年江西能源消费数据,建立能源效率与能源消费结构的计量模型,定量分析煤品、油品、电力等能源结构对能源效率的影响,并根据模型结果,从能源消费结构的角度提出优化我省能源结构和提高能源效率的政策建议。  相似文献   

19.
本文介绍了一种燃用生物质玉米芯的循环流化床热风系统的结构及其运行,这套系统利用玉米芯燃烧产生的热量来生产热风,热风供种子烘干企业烘干玉米种子式样。本文主要介绍这套系统的组成以及主要部分的结构,首台采用该技术的热风系统已在山东登海先锋种业公司投产。运行中主要出现的问题是锅炉尾部积灰比较严重。  相似文献   

20.
Burning of biomass for cooking is associated with health problems and climate change impacts. Many previous efforts to disseminate improved stoves – primarily by governments and NGOs – have not been successful. Based on interviews with 12 organizations selling improved biomass stoves, we assess the results to date and future prospects of commercial stove operations in India. Specifically, we consider how the ability of these businesses to achieve scale and become self-sustaining has been influenced by six elements of their respective business models: design, customers targeted, financing, marketing, channel strategy, and organizational characteristics. The two companies with the most stoves in the field shared in common generous enterprise financing, a sophisticated approach to developing a sales channel, and many person-years of management experience in marketing and operations. And yet the financial sustainability of improved stove sales to households remains far from assured. The only company in our sample with demonstrated profitability is a family-owned business selling to commercial rather than household customers. The stove sales leader is itself now turning to the commercial segment to maintain flagging cash flow, casting doubt on the likelihood of large positive impacts on health from sales to households in the near term.  相似文献   

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