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1.
分析了山西省发展太阳能清洁能源的自然条件和社会条件,评价了太阳能光伏技术的经济效益,展望了太阳能光伏技术的发展前景,为山西省发展太阳能光伏产业提出了相关的对策建议。  相似文献   

2.
光伏产业是河北省大力发展的战略新兴产业,在遭遇欧盟贸易保护所带来的打击和我国政府的大力扶持之后,正面临着加大技术创新、降低成本的挑战。本文通过对国内外光伏产业技术发展现状、特点、关键技术以及专利的分析,结合河北光伏发展实际提出对策。  相似文献   

3.
从我国光伏产业与国际的差距以及即将"入世"所面临的挑战出发,分析了世界光伏产业发展的趋势、速度及我国光伏产业应采取的发展战略,对21世纪前期的发展作出初步预测,同时还分析了为实现发展战略构想应采取的驱动措施。分析表明,世界光伏产业在2000~2010年期间将以28.5%的年增长速率发展,如果我们能抓住"入世"机遇在同一期间以35%的年增长率发展,就能使我国光伏发电成本在2010年与国际趋同。  相似文献   

4.
《科学管理研究》2013,(6):49-52
光伏产业是我国未来发展战略性新兴产业的重要组成部分,多年来在政府大力支持下取得了飞跃发展,但近期美国、欧盟等发达国家发起"双反"使光伏产业遭遇了前所未有的打击,这暴露出光伏产业存在着一些迫切需要被解决的问题。从补贴制度、行业整合、国内需求、外部挑战等多个方面分析了光伏产业发展的主要制约因素,并针对性的提出了解决对策,对我国光伏产业"破冰"之旅提供了一定的指导意义。  相似文献   

5.
在中国光伏产业进入寒冬之时,各地的光伏产业发展规划面临巨大的挑战.以新余市光伏产业的发展为案例,运用SWOT分析方法对该市的光伏产业集群现状进行了梳理,提出了构建以光伏产业为核心多重产业集群发展模式的区域经济发展战略,以促进当地区域经济的可持续发展.  相似文献   

6.
通过对比国内外产业技术政策,结合山西省的能源产业发展以及山西省能源产业技术政策选择的实际情况,分析了山西省能源产业技术政策对山西省能源产业发展的影响。  相似文献   

7.
赵晓丽 《太原科技》2009,186(7):41-42
近年来,随着能源短缺、环境污染等问题的日趋严重,太阳能、水能、风能、地热能、生物能等清洁能源与可再生能源,因其清洁环保、可再生等特点获得了良好的发展机遇.尤其是太阳能光伏产业,在全球持续保持年均30%增长率的情况下,已成为名副其实的朝阳产业.对于能源消费结构以煤为主的山西而言,发展清洁能源与可再生能源,推动山西能源工业结构调整和优化升级,是减少污染、保护生态环境、实现可持续发展的重要途径和迫切需要.而山西省的太阳能资源尤其丰富,总辐射量为481.48~598.71kJ/cm2,仅次于青藏高原和西北地区,是我国光照资源的高值区,具有发展光伏产业的先天优势.大力发展光伏产业,对推动山西省新型能源战略的实施具有积极意义.  相似文献   

8.
《太原科技》2011,(9):111-111
2011年8月22日.中国科学院上海光学精密机械研究所与山西纳克太阳能科技有限公司签订共同建设光伏实验基地的协议,这是山西省光伏企业与中国科学院首次全面合作,也将为山西省、太原市光伏产业的升级提供强有力的技术支撑。  相似文献   

9.
光伏产业是新兴、朝阳产业,是新余市经济社会发展的一个支柱产业。通过对新余市光伏产业发展优势、产业发展目标及任务进行的分析,提出了该市发展中光伏应用产业化基地的相关建议和对策。  相似文献   

10.
在能源资源紧缺和环境变化已成为经济社会发展面临的重要挑战背景下,山西省节能环保产业应该根据自身的发展现状及特点,结合山西资源优势,走出山西特色的节能环保产业发展之路。笔者先是根据《"十二五"节能环保产业发展规划》对节能环保产业及其子产业进行概述;通过分析山西省节能环保产业的发展现状,发现总结山西省节能环保产业在现阶段发展过程中存在的问题;最后针对这些问题,根据国内外其他一些地区发展较好的产业,结合山西自己特点和优势,提出一些可供山西现阶段节能环保产业发展的建议。  相似文献   

11.
Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.  相似文献   

12.
The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3~4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰~ -7.8‰, PDB) and matrix dolomites (-6.6‰~ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084~0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078~0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.  相似文献   

13.
何延凌 《科技信息》2008,(4):258-258
Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women's language from these perspectives: pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women's language, more attention should be paid to language use in social context. What's more, the linguistic phenomena in a speaking community can be understood more thoroughly.  相似文献   

14.
AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…  相似文献   

15.
理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。  相似文献   

16.
As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.  相似文献   

17.
本文叙述了对海南岛及其毗邻大陆边缘白垩纪到第四纪地层岩石进行古地磁研究的全部工作过程。通过分析岩石中剩余磁矢量的磁偏角及磁倾角的变化,提出海南岛白垩纪以来经历的构造演化模式如下:早期伴随顺时针旋转而向南迁移,后期伴随逆时针转动并向北运移。联系该地区及邻区的地质、地球物理资料,对海南岛上述的构造地体运动提出以下认识:北部湾内早期有一拉张作用,主要是该作用使湾内地壳显著伸长减薄,形成北部湾盆地。从而导致了海南岛的早期构造运动,而海南岛后期的构造运动则主要是受南海海底扩张的影响。海南地体运动规律的阐明对于了解北部湾油气盆地的形成演化有重要的理论和实际意义。  相似文献   

18.
There are numerous geometric objects stored in the spatial databases. An importance function in a spatial database is that users can browse the geometric objects as a map efficiently. Thus the spatial database should display the geometric objects users concern about swiftly onto the display window. This process includes two operations:retrieve data from database and then draw them onto screen. Accordingly, to improve the efficiency, we should try to reduce time of both retrieving object and displaying them. The former can be achieved with the aid of spatial index such as R-tree, the latter require to simplify the objects. Simplification means that objects are shown with sufficient but not with unnecessary detail which depend on the scale of browse. So the major problem is how to retrieve data at different detail level efficiently. This paper introduces the implementation of a multi-scale index in the spatial database SISP (Spatial Information Shared Platform) which is generalized from R-tree. The difference between the generalization and the R-tree lies on two facets: One is that every node and geometric object in the generalization is assigned with a importance value which denote the importance of them, and every vertex in the objects are assigned with a importance value,too. The importance value can be use to decide which data should be retrieve from disk in a query. The other difference is that geometric objects in the generalization are divided into one or more sub-blocks, and vertexes are total ordered by their importance value. With the help of the generalized R-tree, one can easily retrieve data at different detail levels.Some experiments are performed on real-life data to evaluate the performance of solutions that separately use normal spatial index and multi-scale spatial index. The results show that the solution using multi-scale index in SISP is satisfying.  相似文献   

19.
20.
The elongation method,originally proposed by Imamura was further developed for many years in our group.As a method towards O(N)with high efficiency and high accuracy for any dimensional systems.This treatment designed for one-dimensional(ID)polymers is now available for three-dimensional(3D)systems,but geometry optimization is now possible only for 1D-systems.As an approach toward post-Hartree-Fock,it was also extended to  相似文献   

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