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我省生物质能源利用及颗料燃料研发现状与分析 总被引:1,自引:0,他引:1
生物质能是可再生能源 ,是仅次于煤炭、石油、天然气的第四大能源。在介绍国内生物质能资源利用及颗粒燃料研制发展现状及国内外生物质成型燃料与设备的研究开发态势的基础上 ,指出甘肃省在开展生物质能颗料燃料研制及技术设备的产业化和商业化生产方面差距。阐述了甘肃省开发生物质能及颗料燃料的主要研制方向及示范推广意义 ,并对甘肃省开展生物质能颗粒燃料研制与推广工作提出了以下意见建议 :①继续增强国家和省上的政策支持 ;②深入开展基础和应用转化研究 ;③进一步加大宣传力度 ;④把利用农业废弃资源与当前农业结构调整结合起来。 相似文献
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新农村建设与生物质能开发利用 总被引:1,自引:0,他引:1
1生物质能的概念及国内外发展概况生物质能是来源于太阳能的一种可再生能源,具有资源丰富、含碳量低的特点。农村的生物质能资源种类很多,主要包括农作物秸杆、人畜粪便、农产品加工副产品和能源作物等几大类,数量大、分布范围广。生物质能可转化为电力、燃气和液体燃料等多种高品位能源,可替代各种常规能源,是仅次于煤炭、石油和天然气的第4大能源。大力开发和有效利用农村生物质能,是我国开拓新的 相似文献
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为充分利用黑龙江省农业生物质能丰富的优势,运用“能源景观”理论方法,从空间规划层面引导与控制生物质能的发展。通过生产潜能分析,确立黑龙江省生物质能发展指导策略,并通过能源供需分析、时空变异预测,构建基于能源规划和空间规划交叉研究的空间规划改进策略。优化德国、奥地利案例中建立的小城镇与运输成本关系模型,构建适用于黑龙江省的生物质能转换点布局模式。从发展策略与空间布局模式两个角度改变黑龙江省目前生物质能利用效率低、资源浪费严重的现状,优化生物质能消费结构,减少不可再生能源的消耗。 相似文献
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中国西部生物经济发展战略探微 总被引:3,自引:0,他引:3
中国西部地区生物经济发展战略应当充分利用西部广阔的生物质能开发空间,相当丰富的生物资源,初具规模的生物产业以及大量的农村富余劳动力等优势资源,遵循因地制宜原则,以发展农业生物经济,医药生物经济,工业生物经济,能源生物经济,环境生物经济为战略内容,以精神生态,人才团队,物质平台,制度环境为战略关键,以管理体制,投融资与财税,知识产权,生物资源为战略保障。 相似文献
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生物质能发电是生物质能化利用的重要方向,是世界也是我国可再生能源发展的重点方向。文章从河南省生物质能源的概况、特征等方面阐述了河南生物质能的资源潜力,提出了河南省生物质能发电产业的主要模式、发展趋势与前景,针对目前河南省生物质发电项目建设、运营情况,分析河南省生物质发电企业的存在的问题,并提出解决问题的对策和建议。 相似文献
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甘肃省生物质能资源利用潜力分析 总被引:1,自引:0,他引:1
在分析甘肃发展生物质能的资源条件和环境利用的基础上,利用已有统计资料和数据,定量估算了甘肃省生物质能源资源潜力。估算得出甘肃每年可利用生物质能总量为2889.20万吨,折标准能源666.32万吨标准煤,其中秸秆约占2/3。在摸清资源家底的基础上,本论述肯定了甘肃生物质能开发的可行性,并提出了因地制宜,适度开发的战略。 相似文献
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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
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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
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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
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Miao Maosheng 《华南师范大学学报(自然科学版)》2014,(6)
正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula- 相似文献
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Yang Weitao 《华南师范大学学报(自然科学版)》2014,46(6):137-138
We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re- 相似文献
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Bernard Kirtman 《华南师范大学学报(自然科学版)》2014,(6)
正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that 相似文献
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Michael Springborg 《华南师范大学学报(自然科学版)》2014,(6):136
For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the 相似文献
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Zhu Chaoyuan 《华南师范大学学报(自然科学版)》2014,46(6):140-140
Franck-Condon factors bridge the gap between theoretical modeling and experimental observations for molecular electronic spectroscopy and electron transfer.Under the displaced harmonic oscillator approximation,multidimensional Franck-Condon factors are decomposed into a product of many one-dimensional(1D)Franck-Condon(FC)factors,and each 1D-FC factor is associated with one Huang-Rhys factor that determines the leading contribution of 相似文献
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《上海师范大学学报(自然科学版)》2014,(5):550
<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with 相似文献