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Optimal Bidding and Operation of a Power Plant with Solvent-BasedCarbon Capture under a CO2 Allowance market： A Solution with aReinforcement Learning-Based Sarsa Temporal-Difference Algorithm

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Engineering 2017年第2期3卷 257-265页

作者： Ziang li Zhengtao Ding Meihong Wang School of Electrical and Electronic Engineering The University of Manchester Manchester M13 9PL UK Department of Chemical and Biological Engineering The University of Sheffield Sheffield S1 3JD UK

In this paper, a reinforcement learning （RL）-based Sarsa temporal-difference （TD） algorithm is applied tosearch for a unified bidding and operation strategy for a coal-fired power plant with monoethanolamine（MEA）-based post-combustion carbon capture under different carbon dioxide （CO2） allowance market con-ditions. The objective of the decision maker for the power plant is to maximize the discounted cumulativeprofit during the power plant lifetime. Two constraints are considered for the objective formulation. Firstly,the tradeoff between the energy-intensive carbon capture and the electricity generation should be made un-der presumed fixed fuel consumption. Secondly, the CO2 allowances purchased from the CO2 allowance mar-ket should be approximately equal to the quantity of COs emission from power generation. Three case stud-ies are demonstrated thereafter. In the first case, we show the convergence of the Sarsa TD algorithm andfind a deterministic optimal bidding and operation strategy. In the second case, compared with the inde-pendently designed operation and bidding strategies discussed in most of the relevant literature, the SarsaTD-based unified bidding and operation strategy with time-varying flexible market-oriented CO2 capturelevels is demonstrated to help the power plant decision maker gain a higher discounted cumulative *** the third case, a competitor operating another power plant identical to the preceding plant is consideredunder the same CO2 allowance market. The competitor also has carbon capture facilities but applies a differ-ent strategy to earn profits. The discounted cumulative profits of the two power plants are then compared,thus exhibiting the competitiveness of the power plant that is using the unified bidding and operation strat-egy explored by the Sarsa TD algorithm.

关键词： Power plants Post-combustion carbon capture Chemical absorption C02 allowance market Optimal decision-making Reinforcement learning

Top-down Modulation of Outcome Processing in Primary Sensory Cortex for Flexible Behavior

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Neuroscience Bulletin 2021年第6期37卷 889-891页

作者： Qi Cheng Chengyu T.li Institute of Neuroscience State Key Laboratory of NeuroscienceChinese Academy of SciencesCAS Center for Excellence in Brain Science and Intelligence TechnologyShanghai Center for Brain Science and Brain-Inspired TechnologyShanghai 200031China School of Future Technology University of the Chinese Academy of SciencesBeijing 100049China

Adaptive behaviors are critical for survival in changing *** you are choosing between a hamburger and sparkling *** brain would assign higher value to hamburger when you are hungry and to water when you are *** example is the driving direction in England and China,which is different between those two *** does the brain respond to the same stimulus under different contexts to guide distinct behavioral decisions?

关键词： Cortex Primary driving

虚拟电厂参与调峰辅助市场的运行成本模型研究

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电机技术 2024年第1期 59-64页

作者：郭茂冉李祥孟钟国网安徽省电力有限公司固镇县供电公司 233700

针对新能源发电不稳定导致整个电力市场运行不平稳的问题,设计了一个虚拟电厂参与调峰辅助市场的运行成本模型。通过容纳多个风电、光伏发电和储能电站组建虚拟电厂(Virtual Power Plant, VPP),实现对电力现货市场数据的全面选择。构建... 详细信息

针对新能源发电不稳定导致整个电力市场运行不平稳的问题,设计了一个虚拟电厂参与调峰辅助市场的运行成本模型。通过容纳多个风电、光伏发电和储能电站组建虚拟电厂(Virtual Power Plant, VPP),实现对电力现货市场数据的全面选择。构建调峰辅助的运营模型,然后将内部各电力部门的资源关系进行整合分析,利用条件风险价值(Conditional Value at Risk,CVaR)首先确定虚拟电厂调峰市场的投标时段、容量和柔性负荷运行计划;然后确定虚拟电厂中储能的充放电功率、弃风弃光功率、调峰实际出力和直接交易功率;之后采用Shapley值对市场运行成本进行优化和分析。试验结果表明,误差率在可接受范围内,表明该成本模型具有一定的实用性和优越性。

关键词： VPP系统 CVaR技术 Shapley值调峰辅助

信息消费如何影响企业市场份额?——基于信息消费示范城市建设的准自然实验

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经济论坛 2024年第10期 70-82页

作者：李志翠陈幼锋新疆师范大学商学院新疆维吾尔自治区乌鲁木齐830017

信息消费是数字经济高速发展背景下产生的新型消费形态,通过有效刺激内需、助推企业数字化转型等深刻影响到企业的各方面。通过分析信息消费对微观主体的作用效果可以更好地为企业纾困解难,推动经济高质量发展。文章从企业市场份额视角... 详细信息

信息消费是数字经济高速发展背景下产生的新型消费形态,通过有效刺激内需、助推企业数字化转型等深刻影响到企业的各方面。通过分析信息消费对微观主体的作用效果可以更好地为企业纾困解难,推动经济高质量发展。文章从企业市场份额视角切入,基于2011—2019年沪深两市A股企业数据,采用双重差分法分析信息消费对企业市场表现的影响,并进一步分析企业创新的调节效应。结果表明:信息消费增强了行业内的企业竞争,降低了上市企业市场份额;信息消费对企业市场份额的影响具有区域和行业的异质性,对东部地区企业市场份额具有显著的负向影响,对中部地区企业市场份额具有显著的正向影响,对资本密集型企业市场份额的负向影响显著强于劳动密集型企业;引入企业创新可以发现,企业创新投入与创新效率在信息消费影响企业市场份额的过程中发挥着调节作用,企业创新投入高会增强信息消费对企业市场份额的负向影响,企业创新效率高则会减缓信息消费对企业市场份额的负向影响。

关键词：信息消费企业市场份额创新投入创新效率

国际电影节主推手访谈录:对话马塔布拉塔国际电影节主席费尔南多·胡安·利马

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电影评介 2024年第15期 23-29页

作者：李苒易婧(整理) 费尔南多·胡安·利马林生(整理) 北京电影学院电影国际传播中心北京电影学院国际交流合作处中央民族大学新闻与传播学院阿根廷国家电影与视听艺术学院(INCAA) 不详

一、背景介绍。费尔南多·胡安·利马(Fernando Juan lima),马塔布拉塔国际电影节主席,阿根廷国家电影与视听艺术学院(以下简称为INCAA)副主席,兼任多个国际电影节评委、选委,布宜诺斯艾利斯大学、阿根廷天主教大学和贝尔格拉诺大学教... 详细信息

一、背景介绍。费尔南多·胡安·利马(Fernando Juan lima),马塔布拉塔国际电影节主席,阿根廷国家电影与视听艺术学院(以下简称为INCAA)副主席,兼任多个国际电影节评委、选委,布宜诺斯艾利斯大学、阿根廷天主教大学和贝尔格拉诺大学教授。费尔南多·胡安·利马于1968年1月21日出生于阿根廷布宜诺斯艾利斯市,1991年毕业于布宜诺斯艾利斯大学(Universidad de Buenos Aires),毕业后在法律领域开始了他的职业生涯,以律师身份开始从事公法相关工作。2000年起担任初审法官。

关键词：费尔南多天主教大学国际电影节视听艺术塔布胡安律师身份阿根廷

Comparison of the femtosecond Laser and mechanical microkeratome for flap cutting in LASIK

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International Journal of Ophthalmology(English edition) 2015年第4期8卷 784-790页

作者： li-Kun Xia Jie Yu Guang-Rui Chai Dang Wang Yang li Department of Ophthalmology Shengjing Hospital of China Medical University

· AIM: To compare refractive results, higher-order aberrations(HOAs), contrast sensitivity and dry eye after laser in situ keratomileusis(LASIK) performed with a femtosecond laser versus a mechanical microkeratome for myopia and astigmatism.·METHODS: In this prospective, non-randomized study,120 eyes with myopia received a LASIK surgery with the Visu Max femtosecond laser for flap cutting, and 120 eyes received a conventional LASIK surgery with a mechanical microkeratome. Flap thickness, visual acuity, manifest refraction, contrast sensitivity function(CSF) curves,HOAs and dry-eye were measured at 1wk; 1, 3, 6mo after surgery.·RESULTS: At 6mo postoperatively, the mean central flap thickness in femtosecond laser procedure was113.05 ±5.89 μm(attempted thickness 110 μm), and148.36 ±21.24 μm(attempted thickness 140 μm) in mechanical microkeratome procedure. An uncorrected distance visual acuity(UDVA) of 4.9 or better was obtained in more than 98% of eyes treated by both methods, a gain in log mar lines of corrected distance visual acuity(CDVA) occurred in more than 70% of eyes treated by both methods, and no eye lost ≥1 lines of CDVA in both groups. The difference of the mean UDVA and CDVA between two groups at any time post-surgery were not statistically significant(P >0.05). The postoperative changes of spherical equivalent occurred markedly during the first month in both groups. The total root mean square values of HOAs and spherical aberrations in the femtosecond treated eyes were markedly less than those in the microkeratome treated eyes during 6mo visit after surgery(P markedly longer than those of the

关键词： laser in situ keratomileusis femtosecond laser flap visual acuity higher-order aberrations contrast sensitivity dry eye

maresin 2对小鼠蛛网膜下腔出血早期的神经保护作用研究

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神经损伤与功能重建 2024年第6期19卷 311-316页

作者：李晨溪刘一涓王华飞王莉余列臧卫东郑州大学基础医学院人体解剖学系郑州450001 郑州大学第一附属医院生物样本库郑州45000 郑州大学第一附属医院神经内科郑州450001

目的:探讨maresin 2(mar2)注射对蛛网膜下腔出血(SAH)小鼠早期的神经保护作用及机制。方法:将134只雄性C57BL/6小鼠按照随机数字表法分为Sham组(12只)、Vehicle组(22只)、mar2组(57只)、牛磺熊去氧胆酸钠(Tau)组(29只)和Tau+mar2组(14... 详细信息

目的:探讨maresin 2(mar2)注射对蛛网膜下腔出血(SAH)小鼠早期的神经保护作用及机制。方法:将134只雄性C57BL/6小鼠按照随机数字表法分为Sham组(12只)、Vehicle组(22只)、mar2组(57只)、牛磺熊去氧胆酸钠(Tau)组(29只)和Tau+mar2组(14只),其中mar2组又分为低(Low;2μg/kg/d;14只)、中(Middle;10μg/kg/d;29只)、高(High;50μg/kg/d;14只)剂量3个亚组。采用改良血管内穿刺法制备SAH模型,在SAH造模后6 h腹腔注射mar2;Tau组,按照0.5 g/kg/d的剂量腹腔注射Tau,连续注射3 d;Tau+mar2组,腹腔注射Tau后2 h,再腹腔注射中剂量的mar2。完成注射后对各组小鼠进行神经功能评分、脑出血评分和脑组织含水量测定,FJB染色评估神经元变性数量,免疫荧光染色观察星形胶质细胞和小胶质细胞的数量变化,Western blotting检测神经元中内质网应激蛋白C/EBP同源蛋白(CHOP)和caspase-3的表达,荧光实时定量PCR(qPCR)检测脑组织白细胞介素-1β(IL-1β)、IL-6炎症因子的变化。体外培养Neuro2a神经元,根据实验采用血红素(Hem)或Tau(CHOP特异性抑制剂)进行干预,并分为对照组、Hem组、Hem+Tau组、Hem+Tau+mar2组。Western blotting检测各组神经元表达CHOP和caspase-3水平;酶联免疫法检测活性氧(ROS)的水平。结果:mar2注射显著改善神经功能缺损、减轻脑水肿,抑制神经元凋亡,中剂量(10μg/kg/d)即可达到最佳治疗效果。Western blotting结果显示mar2可以抑制皮质CHOP和caspase-3的表达;免疫荧光染色结果显示,mar2可以抑制星形胶质细和小胶质细胞的活化增多;qPCR检测结果显示,mar2注射可显著减少炎症因子IL-1β、IL-6的表达。体外实验显示,血红素可诱导神经元中CHOP和caspase-3的显著上调和ROS的合成增多;mar2处理可以显著抑制神经元CHOP和caspase-3的表达。高剂量Tau处理可以显著抑制神经元中CHOP和caspase-3的表达,Tau+mar2处理不能进一步降低CHOP和caspase-3的表达。结论:mar2注射能抑制SAH小鼠神经元的凋亡、减轻脑水肿并改善神经功能缺损,具体机制可能与mar2抑制神经元CHOP的活化,下调caspase-3的表达并减轻神经炎症有关。

关键词：蛛网膜下腔出血神经保护 maresin2 C/EBP同源蛋白

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Early diagenesis of redox-sensitive trace metals in the northern Okinawa Trough

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Acta Oceanologica Sinica 2019年第12期38卷 14-25页

作者： Xiaojing Wang li li Jihua liu Yonghua Wu Jingjing Gao Peng Cao Ying Zhang Xuefa Shi Key Laboratory of marine Sedimentology and Environmental Geology First Institute of OceanographyMinistry of Natural ResourcesQingdao 266061China Laboratory for marine Geology Pilot National Laboratory for Marine Science and Technology(Qingdao)Qingdao 266237China

The early diagenesis processes of several redox-sensitive trace metals(RSMs)(Mo, U and V) were studied with several short sediment cores(~25 cm) collected in the northern Okinawa Trough(OT). Pore water vertical profiles indicated that the sedimentary environments in all cores were between oxic and suboxic, not yet reaching anoxic sulfidic conditions. The recycling process of Mo in sediments was clearly associated with Mn and yielded little authigenic accumulation, while U showed a downcore increase in sediment and its authigenic mass accumulation rate(mar) was estimated to be ~23% of the Changjiang(Yangtze) and Huanghe(Yellow) riverine flux. Benthic diffusive fluxes and mar were calculated and the comparison of them showed that U and V fluxes matched relatively well both in direction and in magnitude, implying that diffusion processes at the sedimentwater interface is the dominant process controlling the remobilization or burial of V and U in northern OT. This work provided a systematic study(both in pore water and solid phase) on the RSMs geochemical behaviors during early diagenesis process, yielding a quantitative assessment of the remobilization or burial fluxes of the RSMs in northern OT. Such studies are in general lacking in the coastal margin of Northwest Pacific Ocean.

关键词： diagenesis molybdenum uranium vanadium pore water sediment Okinawa Trough

复方苦参注射液通过调控巨噬细胞极化改善大鼠急性放射性口腔黏膜炎的机制研究

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辽宁中医杂志 2024年第9期51卷 200-204,I0006页

作者：董克臣张萌梁毅李松刘丹费新雄黄石市中心医院湖北黄石435200

目的从巨噬细胞极化角度探讨复方苦参注射液(Compound Kushen Injection,CKI)对大鼠急性放射性口腔黏膜炎的防治效果及相关机制。方法将72只SPF级雌性SD大鼠按电脑随机抽样法平均分为对照组、模型组和CKI组各24只。将模型组和CKI组暴露... 详细信息

目的从巨噬细胞极化角度探讨复方苦参注射液(Compound Kushen Injection,CKI)对大鼠急性放射性口腔黏膜炎的防治效果及相关机制。方法将72只SPF级雌性SD大鼠按电脑随机抽样法平均分为对照组、模型组和CKI组各24只。将模型组和CKI组暴露于单次30 Gy照射下,对大鼠左侧颊黏膜建立急性放射性口腔黏膜炎模型。CKI组给予复方苦参注射液(1.8 mL/kg)静脉注射,其余各组给予等量0.9%氯化钠溶液。观察照射后各组大鼠一般情况,颊黏膜肉眼观及病理变化。EliSA检测大鼠颊黏膜组织中白细胞介素-6、转化生长因子-β、肿瘤坏死因子-α和白细胞介素-10的浓度水平。免疫荧光法检测大鼠颊黏膜组织中CD86和CD206阳性巨噬细胞数量。RT-PCR和Western Blotting法检测颊黏膜中诱导型一氧化氮合酶(inducible nitric oxide synthase,iNOS)、精氨酸酶1(arginase 1,Arg1)、共刺激分子CD86和CD206 mRNA表达和蛋白水平。结果与模型组比较,CKI组大鼠的一般情况得到改善,颊黏膜炎症明显减轻。与模型组比较,CKI组大鼠颊黏膜组织中CD86+巨噬细胞数量明显减少(P<0.05),M1型巨噬细胞标记物iNOS和CD86 mRNA表达和蛋白水平均显著下降(P<0.05),促炎因子白细胞介素-6和肿瘤坏死因子-α水平显著降低(P<0.05)。与模型组比较,CKI组大鼠颊黏膜CD206+巨噬细胞数量明显升高(P<0.05),M2型巨噬细胞标记物Arg1和CD206 mRNA表达和蛋白水平升高(P<0.05),转化生长因子-β和白细胞介素-10水平明显升高(P<0.05)。结论复方苦参注射液可通过抑制巨噬细胞M1极化,下调促炎因子白细胞介素-6和肿瘤坏死因子-α蛋白表达,同时促进巨噬细胞M2极化,上调抗炎因子转化生长因子-β和白细胞介素-10蛋白表达,从而改善大鼠一般情况,减轻口腔黏膜炎症反应。

关键词：复方苦参注射液大鼠放射性口腔黏膜炎巨噬细胞极化

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