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考虑电-氢一体化的微电网低碳-经济协同优化调度

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中国电力 2024年第5期57卷 137-148页

作者：谭玲玲汤伟楚冬青于子涵吉兴全张玉敏山东电力工程咨询院有限公司山东济南250013 山东科技大学电气与自动化工程学院山东青岛266590

针对微电网中缺乏对碳排放流特性的精确刻画,导致运行层面中微电网的低碳运行方式和经济运行方式之间矛盾凸显,低碳和经济难以兼顾的问题,构建了计及绿电制氢和多能耦合的电-氢一体化运行框架,提出了综合考虑碳排放流和低碳需求响应的... 详细信息

针对微电网中缺乏对碳排放流特性的精确刻画,导致运行层面中微电网的低碳运行方式和经济运行方式之间矛盾凸显,低碳和经济难以兼顾的问题,构建了计及绿电制氢和多能耦合的电-氢一体化运行框架,提出了综合考虑碳排放流和低碳需求响应的微电网低碳-经济协同双层优化调度模型。上层优化调度模型中,以风光储氢一体化工业园区为典型微电网场景,以低碳性和经济性协调最优为目标,将源侧碳交易机制融入调度决策目标中,充分挖掘微电网低碳-经济协同运行方式,以此制定微电网最优低碳经济调度策略;下层低碳需求响应模型中,以微电网用户碳减排所节约的碳排放成本为激励信号,通过建立微电网能量流与碳排放流的映射关系,实现碳排放责任的转移和分摊以及对微电网运行中的碳排放特性精细化评估,进而建立由负荷碳排放强度时空差异性引导用户参与碳减排策略的低碳需求响应(demond response,DR)模型,深入挖掘微电网源-荷间的低碳性和经济性间的协同性。以某工业园区微电网为例,验证了所提模型能有效兼顾系统的低碳性和经济性。

关键词：微电网电-氢一体化碳交易机制低碳调度需求响应碳排放流

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武钢6号高炉热风炉绿色低碳改造设计特点

炼铁 2024年第1期43卷 49-53页

作者：谭玲玲董练德周振华中冶南方工程技术有限公司炼铁分公司湖北武汉430223

对武钢6号高炉热风炉绿色低碳改造设计特点进行了阐述。针对6号高炉第一代炉役生产中,热风炉送风温度低、吨铁煤气消耗量大、烟气排放不满足超低排放要求等问题,大修时对热风炉进行了绿色低碳改造设计,采用了一系列提高风温、降低煤气... 详细信息

对武钢6号高炉热风炉绿色低碳改造设计特点进行了阐述。针对6号高炉第一代炉役生产中,热风炉送风温度低、吨铁煤气消耗量大、烟气排放不满足超低排放要求等问题,大修时对热风炉进行了绿色低碳改造设计,采用了一系列提高风温、降低煤气消耗的技术,同时增加烟气脱硫末端治理系统,全面提升了热风炉系统的工艺设备能力和现代化、绿色化水平。投产后,单烧高炉煤气条件下风温达到1220℃,吨铁煤气消耗量大幅度下降,低于450m^(3)/t。

关键词：大型高炉热风炉绿色低碳高风温煤气消耗

Homological Dimensions of Extriangulated Categories and Recollements

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Algebra Colloquium 2023年第4期30卷 667-684页

作者： Weili Gu Xin Ma lingling tan Department of Mathematics Nanjing UniversityNanjing 210093China College of Science Henan University of EngineeringZhengzhou 451191China School of Mathematical Sciences Qufu Normal UniversityQufuShandong 273165China

Let(A,B,C)be a recollement of extriangulated *** this paper we introduce the global dimension and extension dimension of extriangulated categories,and give some upper bounds of global dimensions and extension dimensions of the categories involved in(A,B,C),which give a simultaneous generalization of some results in recollements of abelian categories and triangulated categories.

关键词： extriangulated category recollement global dimension extension dimension

Interlayer engineering in 3D graphene skeleton realizing tunable electronic properties at a highly controllable level for piezoresistive sensors

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Nano Research 2023年第7期16卷 8512-8521页

作者： Xunxiang Hu lingling tan Xianzhang Wu Jinqing Wang College of Material Science and Engineering Hunan Province Key Laboratory of Materials Surface&Interface Science and TechnologyCentral South University of Forestry and TechnologyChangsha 410004China State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical PhysicsChinese Academy of SciencesLanzhou 730000China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China

Three-dimensional(3D)graphene is a promising active component for various engineering fields,but its performance is limited by the hidebound electrical conductivity levels and hindered electrical *** we present a novel approach based on interlayer engineering,in which graphene oxide(GO)nanosheets are covalently functionalized with varied molecular lengths of diamine *** has led to the creation of an unprecedented class of 3D graphene with highly adjustable electronic *** calculations and experimental results demonstrate that ethylenediamine,with its small diameter acting as a molecular bridge for facilitating electron transport,has the potential to significantly improve the electrical conductivity of 3D *** contrast,butylene diamine,with its larger diameter,has a reverse effect due to the enlarged spacing of the graphene interlayers,resulting in conductive *** importantly,the moderate conductive level of 3D graphene can be achieved by combining the interlayer spacing expansion effect and theπ-electronic donor ability of aromatic *** resulting 3D graphene exhibits highly tunable electronic properties,which can be easily adjusted in a wide range of 2.56-6.61 S·cm^(-1)compared to pristine GO foam(4.20 S·cm^(-1)).This opens up new possibilities for its use as an active material in a piezoresistive sensor,as it offers remarkable monitoring abilities.

关键词： graphene tunable electronic properties multifunctional composites piezoresistive sensor

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基于主从博弈的电热氢综合能源系统优化运行

中国电力 2024年第9期57卷 136-145页

作者：谭玲玲汤伟楚冬青李竞锐张玉敏吉兴全山东电力工程咨询院有限公司山东济南250013 山东科技大学电气与自动化工程学院山东青岛266590

针对综合能源系统(integrated energy system,IES)中各主体间交互关系复杂、利益冲突显著的问题,提出了基于主从博弈的电热氢综合能源系统优化调度模型。首先,在分析氢能“产消一体化”传输特性的基础上,构建计及氢能全过程充分利用的... 详细信息

针对综合能源系统(integrated energy system,IES)中各主体间交互关系复杂、利益冲突显著的问题,提出了基于主从博弈的电热氢综合能源系统优化调度模型。首先,在分析氢能“产消一体化”传输特性的基础上,构建计及氢能全过程充分利用的能源生产商(energy producer,EP)模型;其次,分析EP、负荷聚合商(load aggregator,LA)及能源销售商(energy system operator,ESO)之间的价格信息交互关系,考虑负荷聚合商在需求响应机制下的资源整合效用,建立IES中各利益主体的收益模型;最后,引入“主从博弈”思想,建立以ESO为主导者,采用遗传算法和二次规划相结合的方法,对以EP和LA为跟随者的一主多从Stackelberg博弈模型进行求解。以中国北部某地区的园区IES为例,验证了该模型在促进各主体间利益均衡及共同获利方面的有效性。

关键词：综合能源系统主从博弈氢能需求响应

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Further exploration on causes of temperature anomalies associated with the abnormal northern annular mode

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Chinese Science Bulletin 2009年第12期54卷 2101-2106页

作者： SUO lingling tan BenKui HUANG JiaYou Department of Atmospheric Science School of Physics Peking University Beijing 100871 China

This article concerns the temperature anomalies during the high index phase of the northern annual mode for the wintertime from January to March. The response of the zonal and meridional winds and the temperature advection caused by the anomalous horizontal wind are investigated. The results show that both the zonal and meridional winds experience strong anomalies and the temperature advection induced by both the anomalous zonal and meridional winds is responsible for the temperature anomalies associated with the high index northern annual mode. The temperature advection induced by the anomalous zonal wind contributes dominantly to the cooling in the Atlantic and the Bering Sea while the temperature advection induced by the anomalous merional wind contributes dominantly the warming in the United States of America and the cooling in southern Europe and Canada. The superposed influences caused the obvious warming in north Eurasia.

关键词：温度异常环形原因温度平流气候变暖纬向风经向风横向风

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轨道交通主变电所装配式方案研究

电工技术 2024年第6期 174-177页

作者：谭玲玲商振高长青山东电力工程咨询院有限公司山东济南250013 国家电网有限公司滨州供电公司山东滨州256600

近几年,轨道交通的建设迅猛发展,但受土地资源等因素制约,其主变电所往往位于城区,模块化装配式技术的应用显得尤为重要。通过对一次设备运输单元的划分及预制式电缆终端的选择,简化现场对接及接线工作量,实现一次设备“即插即用”;通... 详细信息

近几年,轨道交通的建设迅猛发展,但受土地资源等因素制约,其主变电所往往位于城区,模块化装配式技术的应用显得尤为重要。通过对一次设备运输单元的划分及预制式电缆终端的选择,简化现场对接及接线工作量,实现一次设备“即插即用”;通过采用统一设备基础、统一基础尺寸模数,采用标准化定型钢模浇制混凝土,提高工艺水平,推进现场机械化施工及电气安装,减少劳动力投入,降低现场安全风险,提高工程质量,为未来轨道交通主变电所的建设、运行提供借鉴和参考。

关键词：轨道交通主变电所装配式

中青年2型糖尿病患者智谋现状及影响因素研究

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国际医药卫生导报 2024年第5期30卷 776-781页

作者：吴成慧高红陈慧媛谢辰熙谭玲玲南华大学护理学院衡阳421001 南华大学附属第二医院护理部衡阳421001

目的了解中青年2型糖尿病患者智谋现状及其影响因素,为中青年2型糖尿病患者智谋干预方案的制定提供参考。方法采用方便抽样法,使用一般资料调查表、智谋量表(Resourcefulness Scale,RS)、2型糖尿病病耻感评估量表(Type 2 Diabetes Stigm... 详细信息

目的了解中青年2型糖尿病患者智谋现状及其影响因素,为中青年2型糖尿病患者智谋干预方案的制定提供参考。方法采用方便抽样法,使用一般资料调查表、智谋量表(Resourcefulness Scale,RS)、2型糖尿病病耻感评估量表(Type 2 Diabetes Stigma Assessment Scale,DSAS-2)对2022年11月至2023年4月于湖南省某两所三级甲等医院内分泌科就诊的272例中青年2型糖尿病患者行问卷调查,其中男198例,女74例,年龄(49.36±8.89)岁。统计学方法采用t检验、方差分析、相关性分析、多元线性回归分析。结果272例中青年2型糖尿病患者智谋量表评分为(75.53±11.42)分,处于中等水平,其中个人智谋维度得分为(45.26±7.51)分,社会智谋维度得分为(30.26±5.60)分。除了不同病程、合并症数量、治疗方式、体质量指数(body mass index,BMI)患者外,不同年龄、性别、文化程度、职业、个人月收入、医保类型、并发症数量的患者智谋水平比较,差异均有统计学意义(t=3.890、2.099,F=45.556、18.883、40.970、21.060、3.306,均P<0.05)。Pearson相关性分析结果显示,智谋与病耻感呈负相关(r=-0.396,P<0.001);多元线性回归分析结果显示,性别(t=-2.915,P=0.004)、年龄(t=-3.004,P=0.003)、文化程度(t=4.714,P<0.001)、个人月收入(t=5.066,P<0.001)、病耻感(t=-6.270,P<0.01)是中青年2型糖尿病患者智谋水平的重要影响因素,共解释中青年2型糖尿病患者智谋总变异的45.8%。结论中青年2型糖尿病患者智谋处于中等水平。临床工作者应加强关注女性、年龄较大、文化程度较低、低收入、存在病耻感的中青年2型糖尿病患者,根据患者情况开展特异性干预,以进一步改善患者智谋水平。

关键词： 2型糖尿病中青年智谋病耻感影响因素

Electrospinning of hydroxypropyl methylcellulose trimellitate solutions

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Science China Chemistry 2010年第1期53卷 190-195页

作者： MA Gang,SHAO ZiQiang,WANG WenJun,WANG FeiJun,tan lingling & LIAO Bing School of Material,Beijing Institute of Technology,Beijing 100081,China School of Material Beijing Institute of Technology Beijing China

Nonwoven fiber mats of hydroxypropyl methylcellulose trimellitate(HPMCT) with potential applications in controlled delivery of drugs and scaffolds for tissue cultures have been successfully fabricated by electrospinning of HPMCT *** formation and diameters of HPMCT fibers fabricated by electrospinning were strongly influenced by the solvents employed,electrostatic field strength,and solution *** electrospun products generated from all HPMCT solutions with various weight-average molecular weights in methanol/dichloromethane(1:1) solvent consisted of clustered beads,while methanol/dichloromethane(1:5) solvent helped to generate smooth,uniform,submicron *** the relationship between specific viscosity and molecular weight in different solvents,it could be concluded that methanol/dichloromethane(1:5) solvent enhanced the molecular entanglements,improved the viscosity of the solutions,thus helped to generate smooth *** all the other variables were kept constant,the concentration range suitable for electrospinning was between 10% and 16%(wt),and the average fiber diameter increased as the concentration *** all the other variables were kept constant,the average fiber diameter decreased as the strength of the electrostatic field *** the solutions of two compounds with similar structure,hydroxypropyl methylcellulose phthalate(HPMCP) and HPMCT,we found that the fibers electrospun from HPMCP were thicker than that from HPMCT,which is attributed to the fact that the solution's conductivity of HPMCT(containing two free carboxyl groups) is higher than that of HPMCP(containing only one free carboxyl group).

关键词： electrospinning HPMCT ultrafine fibers structure properties