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Intelligent optimization of renewable resource mixes incorporating the effect of fuel risk, fuel cost and CO

Deepak KUMAR,D. K. MOHANTA,M. Jaya Bharata REDDY

《能源前沿（英文）》 2015年第9卷第1期页码 91-105 doi: 10.1007/s11708-015-0345-y

摘要： Power system planning is a capital intensive investment-decision problem. The majority of the conventional planning conducted since the last half a century has been based on the least cost approach, keeping in view the optimization of cost and reliability of power supply. Recently, renewable energy sources have found a niche in power system planning owing to concerns arising from fast depletion of fossil fuels, fuel price volatility as well as global climatic changes. Thus, power system planning is under-going a paradigm shift to incorporate such recent technologies. This paper assesses the impact of renewable sources using the portfolio theory to incorporate the effects of fuel price volatility as well as CO emissions. An optimization framework using a robust multi-objective evolutionary algorithm, namely NSGA-II, is developed to obtain Pareto optimal solutions. The performance of the proposed approach is assessed and illustrated using the Indian power system considering real-time design practices. The case study for Indian power system validates the efficacy of the proposed methodology as developing countries are also increasing the investment in green energy to increase awareness about clean energy technologies.

关键词： modern portfolio theory energy policy CO₂ emissions multi-objective optimization planning commission

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Optimal portfolio design of energy storage devices with financial and physical right market

《能源前沿（英文）》 2022年第16卷第1期页码 95-104 doi: 10.1007/s11708-021-0788-2

摘要： With the continuous development of the spot market, in the multi-stage power market environment with the day-ahead market and right market, the study associated with the portfolio of energy storage devices requires that attention should be paid to transmission congestion and power congestion. To maximize the profit of energy storage and avoid the imbalance of power supply and consumption and the risk of node price fluctuation caused by transmission congestion, this paper presents a portfolio strategy of energy storage devices with financial/physical contracts. First, the concepts of financial/physical transmission rights and financial/physical storage rights are proposed. Then, the portfolio models of financial contract and physical contract are established with the conditional value-at-risk to measure the risks. Finally, the portfolio models are verified through the test data of the Pennsylvania-New Jersey-Maryland (PJM) electric power spot market, and the comparison between the risk aversion of portfolios based on financial/physical contract with the portfolio of the market without rights. The simulation results show that the portfolio models proposed in this paper can effectively avoid the risk of market price fluctuations.

关键词： portfolio node price fluctuation transmission right energy storage right risk aversion

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安全性第一准则下的组合贷款模型

唐万生,严维真,宁玉富

《中国工程科学》 2007年第9卷第11期页码 137-141

摘要：

提出了一种在概率准则意义下的组合贷款模型，并设计了基于随机模拟的混合优化算法进行求解。该算法突破了各种贷款收益率必须服从正态分布的假定，可对贷款收益率是任意分布形式的模型进行求解。经数值仿真，验证了算法的可行性。

关键词：组合贷款安全性第一准则随机模拟遗传算法同步扰动随机逼近

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“互联网 +”现代农业的战略路径与对策建议

李瑾,马晨,赵春江,冯献

《中国工程科学》 2020年第22卷第4期页码 50-57 doi: 10.15302/J-SSCAE-2020.04.006

摘要：

“互联网 +” 现代农业是互联网理念、技术和方法在农业领域的实践，是新一代信息技术革命下互联网与现代农业产业融合的新业态和新模式。本文基于现代农业发展需求分析，提出发展“互联网 +”现代农业的必要性，结合对“互联网 +”现代农业内涵的科学界定，分别从信息感知数字化、农机装备智能化、农业生产精准化、产后管理在线化、农技服务个性化5 个方面分析了“互联网 +” 现代农业的新特征，从技术、产业、应用 3 个层面分析了我国“互联网 +” 现代农业发展瓶颈，据此提出了发展“互联网 +” 现代农业的发展思路和战略目标。研究认为，突破“互联网 +” 现代农业应用的理论、方法和共性关键技术，培育形成“互联网 +”现代农业产业集群，开展“互联网 +”在农业生产、农业供应链、农业生产性服务等方面的集成应用示范是我国现阶段的发展重点；应进一步加快实现农业农村互联网信息互通共享，持续推进“互联网 +” 现代农业技术标准体系建设，加强“互联网 +” 现代农业学科发展与人才培养，驱动现代农业产业变革和转型升级。

关键词： “互联网 +”现代农业现代农业产业体系农产品供应链农业生产性服务业

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论钱学森的大成智慧学

钱学敏

《中国工程科学》 2002年第4卷第3期页码 6-15

摘要：

文章强调"大成智慧学"是新世纪的需要，"大成智慧"的核心是科学技术与哲学的结合。为此，不仅要利用人-机结合的思维体系，下苦功夫掌握广博的知识、经验、信息，还要从实际出发，实事求是，善于思考，反复实践，努力树立起反映新世纪的世界观、人生观、科学观、方法论。

关键词：大成智慧现代科学技术体系开放的复杂巨系统大成智慧工程总体设计部大成智慧教育

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Traditional Chinese medicine: potential approaches from modern dynamical complexity theories

null

《医学前沿（英文）》 2016年第10卷第1期页码 28-32 doi: 10.1007/s11684-016-0434-2

摘要：

Despite the widespread use of traditional Chinese medicine (TCM) in clinical settings, proving its effectiveness via scientific trials is still a challenge. TCM views the human body as a complex dynamical system, and focuses on the balance of the human body, both internally and with its external environment. Such fundamental concepts require investigations using system-level quantification approaches, which are beyond conventional reductionism. Only methods that quantify dynamical complexity can bring new insights into the evaluation of TCM. In a previous article, we briefly introduced the potential value of Multiscale Entropy (MSE) analysis in TCM. This article aims to explain the existing challenges in TCM quantification, to introduce the consistency of dynamical complexity theories and TCM theories, and to inspire future system-level research on health and disease.

关键词： traditional Chinese medicine quantification dynamical complexity system level balance modern sciences

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Costs and prices for renewable energy development in industrialized countries and applications to China

Hugo SALAMANCA, Miao CHANG, Xin TIAN

《环境科学与工程前沿（英文）》 2012年第6卷第3期页码 403-411 doi: 10.1007/s11783-011-0350-2

摘要： Developing renewable energy is now becoming a hot topic as it is important in dealing with climate change issue and energy supply issue. With the growing demand of energy, it has become urgent to develop the effective policies and measures that would enable people to maintain the living standards. Among all the measures, price is an essential one. In order to evaluate the costs and prices of the electricity from renewable energy sources (RES-E) and their effects to the market, this paper firstly focus on the extra costs of the RES-E by breaking it into four parts, including investment, construction, connection and operation. Then, the policy choices made in some typical industrialized countries are examined to find answers to the problems RES-E can raise. Finally, the choices made in China are examined in comparison to industrialized countries so as to determine how the current situation could be improved.

关键词： renewable energy public policy costs prices renewable portfolio feed-in tariff

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现代工程项目三方合同系统研究

林基础,成虎

《中国工程科学》 2008年第10卷第11期页码 93-96

摘要：

对三方合同进行了系统的分析和研究，提出三方合同的概念、常见类型及其特征以及日后在三方合同研究工作中需要解决的问题。

关键词：现代工程项目三方合同常见类型合同特征系统研究

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Application and development of modern long-span space structures in China

Shilin DONG, Yang ZHAO, Dong XING

《结构与土木工程前沿（英文）》 2012年第6卷第3期页码 224-239 doi: 10.1007/s11709-012-0166-6

摘要： Modern long-span space structures, developed during the 1970s and 1980s, are light and effective structures based on new technologies and light-weight high-strength materials, such as membranes and steel cables. These structures include air-supported membrane structures, cable-membrane structures, cable truss structures, beam string structures, suspen-domes, cable domes, composite structures of cable dome and single-layer lattice shell, Tensairity structures and so forth. For the premodern space structures widely used since the mid-twentieth century (such as thin shells, space trusses, lattice shells and ordinary cable structures), new space structures have been developed by the combination of different structural forms and materials. The application of prestressing technology and the innovation of structural concepts and configurations are also associated with modern space structures, including composite space trusses, open-web grid structures, polyhedron space frame structures, partial double-layer lattice shells, cable-stayed grid structures, tree-type structures, prestressed segmental steel structures and so forth. This paper provides a review of the structural characteristics and practical applications in China of modern rigid space structures, modern flexible space structures and modern rigid-flexible combined space structures.

关键词： modern long-span space structures rigid space structures flexible space structures rigid-flexible combined space structures application and development

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现代造纸机的节能与降耗

陈克复,杨旭

《中国工程科学》 2012年第14卷第7期页码 4-8

摘要：

讨论了装备控制先进、车速在准高速以上的现代造纸机实现节能降耗的几个途径，即改进各操作单元的结构、实施先进的关键技术与装备及提高其抄造率和产品成品率来提高整机效率。详细介绍了现代造纸机各操作单元的先进关键技术，以及这些关键技术对节能降耗的作用。通过分析现代造纸机在技术上仍存在的科技难题及我国的实际情况，提出研发国产现代造纸机的车速及幅宽的定位，并对我国研发及生产现代造纸机装备方面提出了合理的建议。

关键词：节能降耗现代造纸机关键技术

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Management and Practice of Large-Scale Modern Coal Enterprises

An Wang

《工程管理前沿（英文）》 2014年第1卷第1期页码 13-17 doi: 10.15302/J-FEM-2014004

摘要： As the coal-dominated energy structure will remain unchanged in the short term, the sustainable development of the coal industry is still serving as one of the foundations for the sound development of the national economy. The construction of modernized mines based on "four orientations", that is, orientations of scale production, modern technology and equipment, informationized management and professional working team, has been rapidly enhancing its development in the recent decade. However, in the next decade or an even longer period, the industry, with the energy centre shifting to the West of China, will be exposed to new options and development in the layout, structure, model, technology, etc.

关键词： coal industry sustainable development the four-orientation model

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Development of oxide based diffusion barrier coatings for CFC components applied in modern furnaces

Kirsten BOBZIN, Lidong ZHAO, Thomas SCHLAEFER, Thomas WARDA

《机械工程前沿（英文）》 2011年第6卷第4期页码 392-396 doi: 10.1007/s11465-011-0241-z

摘要：

Carbon fibre reinforced carbon (CFC) materials show a high potential for usage in furnaces as sample carriers for example, which is due to their excellent thermal stability compared to steel carriers. Only their tendency to react with different metals at high temperatures by C-diffusion is a disadvantage, which can be solved by application of diffusion barriers. In order to enable the utilization of CFC-carriers for e.g. brazing furnaces, within the frame of this study thermally sprayed diffusion barrier coatings were developed. Coatings of mullite and ZrO₂-7%βY₂O₃ (YSZ) were prepared by air plasma spraying (APS). The coatings were investigated in terms of their microstructure and thermal shock behaviour. In order to prove the suitability of the coatings for the application in brazing furnaces, the wettability of the coating surfaces by a Ni-based brazing alloy was investigated. The results showed that both mullite and YSZ could be deposited on CFC substrates with a bond coat of W or SiC. Both coatings exhibited good thermal shock behaviour and an excellent non-wetting behaviour against the used Ni-based braze alloy.

关键词： diffusion barrier coatings carbon fibre reinforced carbon (CFC) plasma spraying microstructure furnace