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Planning and design of a micro energy network for seawater desalination and regional energy interconnection

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Global Energy Interconnection 2019年第3期2卷 224-234页

作者： jiancheng yu Dan Wang Cheng Yao Peiyu Chen Bo Liu State Grid Tianjin Electric Power Company Hebei District Tianjin 300010 P.R. China Key Laboratory of Smart Grid of Ministry of Education Tianjin University Nankai District Tianjin 300072 P.R. China

With the rapid developme nt of the economy, the continu ously in creasing populati on, and ongoing climate change, the shortage of freshwater resources has become an increasingly important global problem. Seawater desalination tech no logy can effectively alleviate the pressure on freshwater supplies and has bee n in vestigated in many countries. However, the majority of existing projects focus on the research and development of desalination equipment and the use of new tech no logies and pay less atte ntion to the operation optimizati on of the desalinati on process. The micro energy n etwork (MEN) designed in this study is an efficient distributed energy supply system that can be used to simultaneously supply electricity, cooling, heating, and freshwater as photovoltaic power, wind power, combined heat and power (CHP), electric cooling and heating, and a seawater desalinati on device are in teg rated into the MEN. In this study, a model for operati on optimization of a MEN for seawater desalination was developed and the influences of the electric cooling and heating ratios and the operation optimization of the seawater desalination device were studied with the aim of minimizing the life cycle cost. Based on the results of this study, MENs can reduce the operation cost of desalination devices and improve the efficiency of renewable energy sources.

关键词： Seawater desalination Micro energy network Operation optimization Life cycle cost

Research on operation and management muti-node model of mega city energy Internet

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Global Energy Interconnection 2018年第2期1卷 130-136页

作者： Cheng Yao Zhang Zhang jiancheng yu Wei Feng Changxin Zhou Yiming Han State Grid Tianjin Electric Power Company State Grid Tianjin Electric Power Economics Technology Research Institute Lawrence Berkeley National Laboratory

This paper conducts comprehensive analysis about operational characteristics, market value, stakeholders, and operating modes of a megacity energy Internet. An innovating 'one platform, two centers, and multiple nodes' operation management model is proposed. The study provides an in-depth explanation of the new operation and management model of the connotation and logical relationship. Building a comprehensive energy service platform, developing an integrated energy dispatch center, a market trading service center, communication, and other parts of the system needed to achieve benefits for all parties is including in the discussion. The proposed new model of operation and management has important guiding significance and reference for the development and construction of energy Internets in megacities.

关键词： Energy Internet Mega city Operation and management mode Integrated energy service platform

Inhibition of Defect-Induced Ice Nucleation, Propagation, and Adhesion by Bioinspired Self-Healing Anti-Icing Coatings

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Research 2024年第1期2023卷 237-246页

作者： Shu Tian Ruiqi Li Xinmeng Liu jiancheng Wang Junyu yu Sijia Xu yunqing Tian Jing Yang Lei Zhang Department of Biochemical Engineering Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering(MOE)School of Chemical Engineering and TechnologyTianjin UniversityTianjin 300350China Binzhou Institute of Technology Weiqiao-UCAS Science and Technology ParkBinzhou CityShandong Province 256606China

Anti-icing coatings on outdoor infrastructures inevitably suffer from mechanical injuries in numerous icing scenarios such as hailstorms,sandstorms,impacts of foreign objects,and icing–deicing ***,the mechanisms of surface-defect-induced icing are *** the defects,water molecules exhibit stronger adsorption and the heat transfer rate increases,accelerating the condensation of water vapor as well as ice nucleation and ***,the ice–defect interlocking structure increases the ice adhesion ***,a self-healing(at−20℃)antifreeze-protein(AFP)-inspired anti-icing coating is *** coating is based on a design that mimics the ice-binding and non-ice-binding sites in *** enables the coating to markedly inhibit ice nucleation(nucleation temperature<−29.4℃),prevent ice propagation(propagation rate<0.00048 cm^(2)/s),and reduce ice adhesion on the surface(adhesion strength<38.9 kPa).More importantly,the coating can also autonomously self-heal at−20℃,as a result of multiple dynamic bonds in its structure,to inhibit defect-induced icing *** healed coating sustains high anti-icing and deicing performance even under various extreme *** work reveals the in-depth mechanism of defect-induced ice formation as well as adhesion,and proposes a self-healing anti-icing coating for outdoor infrastructures.

关键词： coating defect clarified

Application of Binomial Option Pricing Model to the Appraisal of Knowledge Management Investment

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Chinese Business Review 2005年第3期4卷 1-5页

作者： Jing Sui Jinsheng He jiancheng yu Tianjin University

This paper views knowledge management （KM） investment from the angle of real options, and demonstrates the utility of the real options approach to KM investment analysis. First, KM project has characteristics of uncertainty, irreversibility and choice of timing, which suggests that we can appraise KM investment by real options theory. Second, the paper analyses corresponding states of real options in KM and finance options. Then, this paper sheds light on the way to the application of binomial pricing method to KM investment model, which includes modeling and conducting KM options. Finally, different results are shown of using DCF method and binomial model of option evaluation via a case.

关键词： knowledge management real options binomial option pricing model project appraisal

Integrated energy efficiency evaluation of a multi-source multi-load desalination micro-energy network

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Global Energy Interconnection 2020年第2期3卷 128-139页

作者： Dan Wang jiancheng yu Bo Liu Chao Long Peiyu Chen Zhiqiang Chong Key Laboratory of Smart Grid of Ministry of Education Tianjin UniversityNankai DistrictTianjin 300072P.R.China State Grid Tianjin Electric Power Company Hebei DistrictTianjin 300010P.R.China Centre for Energy Systems and Strategy in School of Water Energy and EnvironmentCranfield UniversityCollege Road Cranfield MK430ALUnited Kingdom Electric Power Research Institute of State Grid Tianjin Electric Power Company Xiqing DistrictTianjin 300384P.R.China

With increasing global shortage of fresh water resources,many countries are prioritizing desalination as a means of utilizing abundantly available seawater *** energy efficiency evaluation is a scientific method for the quantitative analysis of energy efficiency based on multiple indicators and is very useful for investment,construction,and scientific decision-making for desalination *** this paper,the energy efficiency evaluation of the micro energy network (MEN) of desalination for multi-source and multi-load is studied,and the basic idea of comprehensive energy efficiency evaluation is *** process includes the use of a MEN model to establish an integrated energy efficiency evaluation index system,taking into consideration energy,equipment,economic,environmental,and social factors.A combined evaluation method considering subjective and objective comprehensive weights for multi-source multi-load desalination MENs is proposed to evaluate the energy efficiency of desalination and from multiple perspectives.

关键词： Seawater Desalination Micro-energy Network Integrated Energy Efficiency Evaluation Index System Evaluation Method

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连续斜系杆拱滨江大桥设计与稳定性能分析

东南大学学报（自然科学版） 2006年第6期36卷 1007-1012页

作者：虞建成童浩黄卫东南大学交通学院南京210096

介绍了滨江大桥主结构首次采用的无风撑三跨连续斜系杆拱(左斜20°)的设计构造,定性分析了该结构的主要受力特点,阐述了稳定分析的类型,采用第1类弹性稳定分析方法,建立空间有限元计算模型,对施工阶段、成桥以及运营状态进行了稳定性能... 详细信息

介绍了滨江大桥主结构首次采用的无风撑三跨连续斜系杆拱(左斜20°)的设计构造,定性分析了该结构的主要受力特点,阐述了稳定分析的类型,采用第1类弹性稳定分析方法,建立空间有限元计算模型,对施工阶段、成桥以及运营状态进行了稳定性能的计算分析;同时对正交和斜交、单跨和连续端横梁刚度的影响进行对比分析.结果表明:在左斜20°时,对于刚性系杆刚性拱结构体系,桥面系刚度较大,结构的失稳主要表现在拱肋的面外失稳;而单跨与连续2种体系以及正交和斜交时的稳定性相差不大,在具有较多较强内横梁情况下,端横梁刚度对拱肋的稳定性影响不明显.

关键词：斜桥连续结构系杆拱端横梁稳定分析

Effect of Culture Parameters on the Growth of Sparassis crispa Mycelium

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食用菌学报 2007年第3期14卷 37-40页

作者： WANG jiancheng YING Zhenghe yu Yingrui LI Kaiben Plant Protection Institute Fujian Academy of Agricultural Sciences Fuzhou Fujian 350013 China

The effect of carbon and nitrogen sources, pH, temperature and substrate water content on the growth and vigor of Sparassis crispa mycelium was evaluated. Mycelial growth rates were highest when rice starch served as the carbon source and when peptone, yeast extract or soybean meal were adopted as the nitrogen source. The optimum pH and substrate water content values were 5.25 and 62.5% respectively. Mycelial growth was optimal at 20.2 ℃ and inhibited at 35 ℃, and temperatures of 40 ℃ and above killed the fungus.

关键词：绣球菇栽培介质生长菌丝体

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微小型自主水下机器人研究现状

机器人 2023年第2期45卷 218-237页

作者：康帅俞建成张进中国科学院沈阳自动化研究所机器人学国家重点实验室辽宁沈阳日110016 中国科学院机器人与智能制造创新研究院辽宁沈阳110169 中国科学院大学北京100049

综述了国内外微小型自主水下机器人(AUV)的研究现状。首先,对微小型AUV的定义进行了梳理。其次,基于微小型AUV的平台结构特征,对微小型AUV的应用背景和特征进行了归纳和总结。最后,对微小型AUV的发展趋势进行了分析和探讨。为微小型AUV... 详细信息

综述了国内外微小型自主水下机器人(AUV)的研究现状。首先,对微小型AUV的定义进行了梳理。其次,基于微小型AUV的平台结构特征,对微小型AUV的应用背景和特征进行了归纳和总结。最后,对微小型AUV的发展趋势进行了分析和探讨。为微小型AUV的设计提供了参考,对微小型AUV的应用发展具有借鉴意义。

关键词：自主水下机器人(AUV) 微小型AUV 结构特征

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基于事件相关电位的水下机械手脑电波控制

机器人 2017年第4期39卷 395-404页

作者：俞建成张进李伟中国科学院沈阳自动化研究所机器人学国家重点实验室辽宁沈阳110016 中国科学院大学北京100049

为了解放水下机械手操作人员的双手,本文将脑-机接口(BCI)技术应用到水下机器人作业中,通过解析脑电信号并将其映射为具体指令从而控制机械手.现有的脑电波控制机械手方法在实时性、准确性方面无法满足实际的水下作业要求,提出了基于视... 详细信息

为了解放水下机械手操作人员的双手,本文将脑-机接口(BCI)技术应用到水下机器人作业中,通过解析脑电信号并将其映射为具体指令从而控制机械手.现有的脑电波控制机械手方法在实时性、准确性方面无法满足实际的水下作业要求,提出了基于视觉诱发模式的ERP(事件相关电位)脑电信号来控制水下机械手的策略.通过融合脑电波控制与水下机械手作业的各自特点和优化ERP视觉诱发界面,使操作人员能够快速地完成给定任务.8位被试被邀请在建立的实验平台上进行控制实验,最终得到的辨识操作人员意图平均准确率、系统信息传输率与完成任务平均控制时间分别为91.5%、27.7 bits/min与90.1 s.与同类系统相比,本文所提控制策略系统性能更好,且作业效率满足实际作业要求.

关键词：水下机械手复杂任务事件相关电位(ERP) 脑-机接口(BCI) 信息传输率(ITR)