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“生态文明建设若干战略问题研究”综合组 《中国工程科学》2015,17(8):1-7
为实现我国从"工业文明"到"生态文明"的转变,2013年中国工程院联合国家开发银行股份有限公司和清华大学开展了"生态文明建设若干战略问题研究"重大咨询研究项目。研究从战略层面探索生态文明建设的三大支柱(资源节约、生态安全和环境保护)如何与新型工业化、城镇化、农业现代化相融合等重大战略问题。研究提出了国土生态安全与水土资源配置格局、生态文明建设中的能源可持续发展战略、生态保护和建设战略、环境保护战略、新型工业化战略、新型城镇化战略、农业现代化战略、绿色消费与文化教育战略、绿色交通运输战略;提出了"十三五"时期生态文明建设目标与重点任务以及生态文明建设政策保障,为国家加快推进生态文明建设提供决策支撑。 相似文献
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"十三五"时期是我国加快推进生态文明建设、全面建成小康社会的关键时期。基于对生态文明建设面临的八大重要挑战的总体判断,提出了"十三五"时期生态文明建设目标和指标建议,提出了生态文明建设的九大重点任务,包括实施绿色拉动战略驱动产业转型升级、提高资源能源效率建设节约型社会、以重大工程带动生态系统量质双升、着力解决危害公众健康的突出环境问题、划定并严守生态保护红线体系、推进新型城镇化战略统筹城乡发展、开展国家生态资产家底清查核算与监控评估平台建设、全面开展全民生态文明新文化活动、实施生态文明工程科技支撑重大专项;最后提出了五项保障的条件与政策建议。 相似文献
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为明确生态保护和建设的概念及其在生态文明建设中的地位,理清我国生态保护和建设的现状,为新时期生态保护和建设发展战略的确定奠定基础,本文采用文献分析、实地专题调研、专家座谈咨询相结合的方法,对生态保护和建设的基本概念、战略地位、基本形势等进行了深入研究。研究结果表明,生态保护和建设是生态文明建设的三大主题之一,在生态文明建设中乃至对于人类的生存与发展都具有基础性和根本性地位,我国生态保护和建设的基本形势可以概括为"成就明显,局部改善;基础薄弱,形势严峻"。 相似文献
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福建省生态文明建设的经验与建议 总被引:1,自引:0,他引:1
福建省是我国首个国家生态文明试验区,生态文明建设成效显著,形成了一系列可推广的经验。本文梳理了福建省自2001年以来在经济建设、环境治理、生态保护与人居建设方面取得的成效,指出福建省未来发展存在的问题,如资源环境约束依然巨大、与生态文明制度相适应的制度体系仍不健全、闽西和闽北山区加快发展与生态保护之间的矛盾日益突出等,总结了福建省在生态文明顶层设计、转变方式、绿色治理、制度建设等方面的经验,建议国家生态文明体制改革试点在福建省集中示范,形成制度合力,增强引领示范效应;建议福建省在下一阶段应着力推进经济绿色转型、创新生态环境监管体系、优化国土安全格局。 相似文献
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生态文明建设是国家发展战略,研究经济发达地区生态文明建设的经验模式与提升策略,对发挥带动和示范效应、推进全国生态文明建设具有重要意义。本文以珠江三角洲(珠三角)地区的生态文明建设为案例,系统梳理了生态空间格局、生态环境质量、生态文明制度、经济环境协调发展等方面取得的成效,总结提炼了生态文明建设的创新模式;在深入分析区域生态文明建设面临挑战的基础上,针对性提出了发展目标与发展路径,以期为我国经济发达地区的生态文明建设提供基本参照。研究建议,提升国土空间保护修复水平,推动珠三角地区率先实现碳排放达峰,以科技创新引领绿色低碳高质量发展,促进天蓝地绿水清,使环境得到持续改善,营造美丽宜居与生态文明新风尚,以此构建生态文明制度创新高地。 相似文献
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党的"十八大"报告中指出,"我们一定要更加自觉地珍爱自然,更加积极地保护生态,努力走向社会主义生态文明新时代。"以及"把生态文明建设放在突出地位,融入经济建设、政治建设、文化建设、社会建设各方面和全过程,努力建设美丽中国,实现中华民族永续发展。"发展有机农业,是推进生态文明建设的重要抓手,是实现人与自然、农业经济与生态环境协调可持续发展的重要途径。 相似文献
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为推进长江经济带生态文明建设,中国工程院于2019年启动“长江经济带生态文明建设若干战略问题研究”重大咨询项目。本文在项目相关研究成果基础上,系统梳理了地区生态文明建设在顶层设计、绿色示范、生态保护、环境改善等方面取得的系列历史性成效,深入分析了地区生态文明建设在国土开发、产业布局、江湖关系、生态安全、能源开发、环境风险等方面面临的主要挑战,基于“山水林田湖草沙”生命共同体理念,着重从生态空间管控、水生态系统健康、绿色高质量发展、生态保护修复与生态农林业发展、生态产品价值实现、生态文明治理体系等方面提出战略建议,为推进长江经济带生态文明建设提供思路。 相似文献
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文章通过对十八大报告中有关生态文明建设内容的学习、分析与理解,并且在理解我国水生态文明建设目标的基础上,分析了我国水生态文明的现状,对建设中存在的问题进行了剖析,并结合我国实际情况针对水生态文明建设中存在的问题提出了主要对策,对开展水生态文明建设工作以及全面推进水生态文明建设提供参考。 相似文献
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Production planning and scheduling are becoming the core of production management, which support the decision of a petrochemical company. The optimization of production planning and scheduling is attempted by every refinery because it gains additional profit and stabilizes the daily production. The optimization problem considered in industry and academic research is of different levels of realism and complexity, thus increasing the gap. Operation research with mathematical programming is a conventional approach used to address the planning and scheduling problem. Additionally, modeling the processes, objectives, and constraints and developing the optimization algorithms are significant for industry and research. This paper introduces the perspective of production planning and scheduling from the development viewpoint. 相似文献
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目的 探索江门世遗文化的传承、发展和转化的新思路,践行国家在《粤港澳大湾区发展规划》纲要中要求江门承担与港澳地区文化创意合作与开发任务的分工。方法 与澳门高校紧密合作,开展专业培训课程,以开平碉楼为例,从人文视角开展设计研究,梳理开平碉楼的文化脉络,把世遗文化的元素和其背后的文化融入文创产品中,提升文创产品的附加值,推动当地文创产业结构的变革。结果 两地高校构建了稳定的科研团队,开设长期有效的设计培训课程,与景区建立了研究协作关系,帮助景区构建了一套产销研的商业模式。结论 以跨区域高校合作为平台,以文创产品为抓手,依托江澳两地的资源优势,可以构建江门世遗文化全新的品牌形象,最终推动开平世遗文化的活化。 相似文献
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Error and uncertainty in modeling and simulation 总被引:1,自引:0,他引:1
William L. Oberkampf Sharon M. DeLand Brian M. Rutherford Kathleen V. Diegert Kenneth F. Alvin 《Reliability Engineering & System Safety》2002,75(3)
This article develops a general framework for identifying error and uncertainty in computational simulations that deal with the numerical solution of a set of partial differential equations (PDEs). A comprehensive, new view of the general phases of modeling and simulation is proposed, consisting of the following phases: conceptual modeling of the physical system, mathematical modeling of the conceptual model, discretization and algorithm selection for the mathematical model, computer programming of the discrete model, numerical solution of the computer program model, and representation of the numerical solution. Our view incorporates the modeling and simulation phases that are recognized in the systems engineering and operations research communities, but it adds phases that are specific to the numerical solution of PDEs. In each of these phases, general sources of uncertainty, both aleatory and epistemic, and error are identified. Our general framework is applicable to any numerical discretization procedure for solving ODEs or PDEs. To demonstrate this framework, we describe a system-level example: the flight of an unguided, rocket-boosted, aircraft-launched missile. This example is discussed in detail at each of the six phases of modeling and simulation. Two alternative models of the flight dynamics are considered, along with aleatory uncertainty of the initial mass of the missile and epistemic uncertainty in the thrust of the rocket motor. We also investigate the interaction of modeling uncertainties and numerical integration error in the solution of the ordinary differential equations for the flight dynamics. 相似文献
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Ravinder Koul 《工程教育杂志》2018,107(2):219-237
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New measurements are reported for the density and viscosity of tetralin and trans-decalin. The density was determined from room temperature to 60°C for tetralin and to 95°C for trans-decalin. The kinematic viscosity was measured up to temperatures slightly above 100°C. Our results improve upon the values recommended by the American Petroleum Institute for these liquids. 相似文献
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Masao Doyama 《Bulletin of Materials Science》1999,22(3):723-728
By making a step on one surface (
) of a rectangular small paralellepiped copper crystal, dislocations could be created by the molecular dynamic method. The
dislocation created was not a complete edge dislocation but a pair of Heidenreich-Shockley partial dislocations. Each time
a dislocation was created, the stress on the surface was released. Small copper crystals having a notch were pulled (until
fracture), compressed and buckled by use of the molecular dynamic method. An embedded atom potential was used to represent
the interaction between atoms. Dislocations were created near the tip of the notch. A very sharp yield stress was observed.
The results of high speed deformations of pure silicon small crystals using the molecular dynamics are presented. The results
suggest that plastic deformation may be possible for the silicon with a high speed deformation even at room temperature. Another
small size single crystal, the same size and the same surfaces, was compressed using molecular dynamic method. The surfaces
are {110}, {112} and {111}. The compressed direction was [111]. It was found that silicon crystals are possible to be compressed
with a high speed deformation. This may suggest that silicon may be plastically deformed with high speed deformation. 相似文献
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SMC/BMC废弃物对工业及环境造成了很大影响,指出了SMC/BMC回收再利用的紧迫性。通过对目前国际上SMC/BMC回收再利用的3种典型途径优缺点的对比,参照国外SMC/BMC回收再利用的先进方法,对我国SMC/BMC回收再利用提供了可行的建议. 相似文献
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文章从翻译过程中语义的判断和选择行为入手,探讨语境的定义和种类,通过分类举例着重说明语境对语义的制约,并以此证明语境作为语义判断和选择的依据,是具体的、可操作的范畴。 相似文献