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Imitation Learning Based Real-time Decision-making of Microgrid Economic Dispatch Under Multiple Uncertainties

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Journal of Modern Power Systems and Clean Energy 2024年第4期12卷 1183-1193页

作者： wei Dong fan Zhang meng Li Xiaolun fang Qiang Yang School of Automation Hangzhou Dianzi UniversityHangzhou 310018China College of Electrical Engineering Zhejiang UniversityHangzhou 310027China

The intermittency of renewable energy generation,variability of load demand,and stochasticity of market price bring about direct challenges to optimal energy management of *** cope with these different forms of operation un-certainties,an imitation learning based real-time decision-mak-ing solution for microgrid economic dispatch is *** this solution,the optimal dispatch trajectories obtained by solv-ing the optimal problem using historical deterministic operation patterns are demonstrated as the expert samples for imitation *** improve the generalization performance of imita-tion learning and the expressive ability of uncertain variables,a hybrid model combining the unsupervised and supervised learn-ing is *** denoising autoencoder based unsupervised learning model is adopted to enhance the feature extraction of operation ***,the long short-term memory network based supervised learning model is used to efficiently characterize the mapping between the input space composed of the extracted operation patterns and system state variables and the output space composed of the optimal dispatch *** numerical simulation results demonstrate that under vari-ous operation uncertainties,the operation cost achieved by the proposed solution is close to the minimum theoretical *** with the traditional model predictive control method and basic clone imitation learning method,the operation cost of the proposed solution is reduced by 6.3%and 2.8%,respective-ly,overa test period of three months.

关键词： Energy management imitation learning datadriven decision economic dispatch

定喘汤加减联合糖皮质激素治疗肺脾气虚型支气管哮喘患儿的疗效及对其呼吸道重塑、血清TGFβ水平的影响

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世界中西医结合杂志 2024年第1期19卷 125-128,133页

作者：吕民英张宏付晓梅孟凡威河南大学第一附属医院河南开封475000

目的探讨定喘汤加减联合糖皮质激素用于肺脾气虚型支气管哮喘儿童对呼吸道重塑及血清转化生长因子β(TGFβ)的影响。方法选取2022年1月-2022年12月期间河南大学第一附属医院收治的肺脾气虚型支气管哮喘患儿82例,按随机数字表法分为对照... 详细信息

目的探讨定喘汤加减联合糖皮质激素用于肺脾气虚型支气管哮喘儿童对呼吸道重塑及血清转化生长因子β(TGFβ)的影响。方法选取2022年1月-2022年12月期间河南大学第一附属医院收治的肺脾气虚型支气管哮喘患儿82例,按随机数字表法分为对照组和观察组,每组各41例,对照组采用糖皮质激素吸入治疗,观察组在对照组基础上加用定喘汤加减治疗。治疗3个月后,观察比较两组患儿临床疗效、不良反应发生率,治疗前后中医症候评分、气道重构指标[支气管总面积(TA)、管壁面积(WA)、管腔面积(LA)]、血清指标[白细胞介素-4(Interleukin 4,IL-4)、白细胞介素-5(Interleukin-5,IL-5)、转化生长因子β(Transforming growth factor-β,TGFβ)]。结果治疗后观察组总有效率92.68%(38/41)明显高于对照组75.61%(31/41),差异有统计学意义(P0.05)。结论采用定喘汤加减联合糖皮质激素治疗肺脾气虚型支气管哮喘患儿后,能明显降低TGFβ水平,逆转气道重塑,提高临床治疗疗效。

关键词：定喘汤加减糖皮质激素支气管哮喘呼吸道重塑转化生长因子β

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黑臭河道水质监测及综合治理措施研究

化学工程师 2024年第8期38卷 39-43页

作者：姜海山冯杰孟凡伟徐文哲唐山市生态环境局遵化市分局河北唐山063000 唐山泽岚环境保护监测有限公司河北唐山063000 唐山市环境监控中心河北唐山063000

为了提高黑臭河道水体的治理效率,以某黑臭河道污水水样为研究对象,对其不同取样点以及不同取样时间段的水质进行了监测分析,并采用“微孔曝气+生物质吸附材料+微生物菌剂”的组合工艺措施对黑臭河道污水进行了综合治理,考察了不同因素... 详细信息

为了提高黑臭河道水体的治理效率,以某黑臭河道污水水样为研究对象,对其不同取样点以及不同取样时间段的水质进行了监测分析,并采用“微孔曝气+生物质吸附材料+微生物菌剂”的组合工艺措施对黑臭河道污水进行了综合治理,考察了不同因素对污水处理效果的影响。结果表明,目标黑臭河道4个取样点不同时间所取水样的平均透明度、溶解氧(DO)、氧化还原电位(ORP)和氨氮(NH_(3)-N)浓度均达到轻度黑臭水体的标准,河道水质存在严重的污染现象。在曝气强度为250L·h^(-1)、生物质吸附材料投加量为8g·L^(-1)、微生物菌剂投加量为0.035g·L^(-1)的条件下,经过“微孔曝气+生物质吸附材料+微生物菌剂”组合工艺处理后的河道污水水质指标显著改善,河道黑臭现象得到了消除,综合治理效果较好。

关键词：黑臭河道水质监测水质指标治理措施组合工艺

Putrescine, spermidine, and spermine play distinct roles in rice salt tolerance

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Journal of Integrative Agriculture 2020年第3期19卷 643-655页

作者： Md Azizul ISlam PANG Jin-huan meng fan-wei LI Ya-wen XU Ning YANG Chao LIU Jun State Key Laboratory of Plant Genomics Institute of MicrobiologyChinese Academy of Sciences(CAS)Beijing 100101P.R.China CAS Center for Excellence in Biotic Interactions University of Chinese Academy of SciencesBeijing 100049P.R.China Department of Biotechnology and Genetic Engineering Faculty of Applied Science and TechnologyIslamic UniversityKushtia 7003Bangladesh

Polyamines(PAs) play diverse roles in plant growth and development,as well as responses to environmental *** this study,the effects of PAs on rice salt tolerance were *** stress resulted in the alteration of endogenous PAs levels in rice roots and leaves,where spermidine(Spd) and spermine(Spm) contents were increased,and putrescine(Put) content was ***-qPCR analysis revealed that PAs biosynthesis-related genes ADC1,ODC,and Arginase were significantly downregulated by salt treatment;however,SAMDC transcription was significantly *** Spm enhanced rice salt tolerance remarkably;however,exogenous Put and Spd undermined rice salt *** rice plants overexpressing SAMDC display a higher ratio of Spm/(Put+Spd) and enhanced salt *** stress also increased polyamine oxidase activities in rice,resulting in elevated reactive oxygen species(ROS) *** findings revealed that accumulation of Put and Spd substantially reduced salt tolerance in rice,likely by facilitating ROS production;whereas,conversion of Put and Spd to Spm contributes to rice salt tolerance.

关键词： rice polyamines NaCl polyamine oxidase guazatine

Vertical Distribution and Seasonal Fluctuation of Nematode Trophic Groups as Affected by Land Use

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Pedosphere 2006年第2期16卷 169-176页

作者： meng fan-Xiang OU wei LI Qi JIANG Yong WEN Da-Zhong Key Laboratory of Terrestrial Ecological Process Institute of Applied Ecology Chinese Academy of Sciences Shenyang 110016 （China）. Graduate School of the Chinese Academy of Sciences Beijing 100039 （China）

A field investigation was conducted at the Shenyang Experimental Station of Ecology, Chinese Academy of Sciences, in an aquic brown soil of Northeast China under three land use types (cropland, abandoned cropland, and woodland) in order to evaluate whether the vertical distribution and seasonal fluctuation for the number of total nematodes and trophic groups could reflect soil ecosystem differences and to determine the relationships between soil chemical properties and soil nematodes. The majority of soil nematodes were present in the 0-20 cm soil layers, and for these land use types plant parasites were the most abundant trophic group. In the abandoned cropland the numbers of plant parasites reached a peak on the August sampling date, whereas the cropland and woodland peaked on the October sampling date. Meanwhile, in all land use types the number of total nematodes, bacterivores, plant parasites, and omnivores-predators was negatively (P < 0.05, except for bacterivores in cropland, which was not significant) correlated with bulk density, and positively (P < 0.05, except for fungivores in abandoned cropland, which was not significant) correlated with total organic carbon and total nitrogen.

关键词： aquic brown soil land uses soil nematode trophic groups vertical distribution

EAST-CTI测试平台上六硼化镧等离子体源的研制

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核聚变与等离子体物理 2024年第1期44卷 24-29页

作者：孟凡卫张小辉胡广海孔德峰叶扬黄艳清齐美彬赵志豪李博董期龙合肥工业大学计算机与信息学院合肥230009 中国科学院等离子体物理研究所合肥230031 合肥综合性国家科学中心能源研究院合肥230031 衡阳师范学院物理与电子工程学院衡阳4210024 石河子大学理学院石河子832003

为了更方便和深入研究紧凑环注入(CTI)系统产生的等离子体团在等离子体中的演化过程,特设计了一套大尺寸、均匀的六硼化镧等离子体源,用来产生磁化、高密度等离子体。等离子体源的阴极采用钨丝间接加热的方式来达到工作温度,阴极最高可... 详细信息

为了更方便和深入研究紧凑环注入(CTI)系统产生的等离子体团在等离子体中的演化过程,特设计了一套大尺寸、均匀的六硼化镧等离子体源,用来产生磁化、高密度等离子体。等离子体源的阴极采用钨丝间接加热的方式来达到工作温度,阴极最高可达到1800℃。阳极采用耐高温、透过率50%的钼金属网,与阴极之间轴向间距1m。在阴极和阳极之间施加40~200V偏压,阴极发射的电子与中性气体碰撞、电离进而产生长1m直径100mm的稳态磁化等离子体柱。在台面实验中,测试了源的放电性能和等离子体相关参数。实验结果表明,在阴极发射电流密度为1~2A·cm^(-2)的情况下,测得的氩等离子体电子密度可达到10^(18)m^(-3)量级,电子温度约为8eV。通过增加阴、阳极之间偏压,阴极发射电流密度最高达到8.5A·cm^(-2),等离子体参数与托卡马克边界参数相近。该等离子体源满足设计要求并具备为EAST-CTI系统开展台面实验的能力。

关键词： EAST-CTI 六硼化镧阴极等离子体源磁化等离子体

Improving photochemical indicators for attributing ozone sensitivities in source apportionment analysis

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Journal of Environmental Sciences 2024年第9期143卷 235-246页

作者： Xiaohui Du wei Tang Zhongzhi Zhang Yang Yu Yang Li Ling Huang Greg Yarwood fan meng Atmospheric Environment Institute Chinese Research Academy of Environmental SciencesBeijing 100012China College of Water Sciences Beijing Normal UniversityBeijing 100857China Asia Center for Air Pollution Research United Nations Environment Programme Asia and the Pacific OfficeNishi-kuNiigata-shi 9502144Japan School of Environmental and Chemical Engineering Shanghai UniversityShanghai 200444China Ramboll NovatoCalifornia 94945USA

Comprehensive Air Quality Model with extensions(CAMx)-Decoupled Direct Method(DDM)simulations of first-order ozone(O_(3))sensitivity to nitrogen oxides(NO_(x))and volatile organic compounds(VOCs)emissions were performed and combined with modelled P_(H_(2)O_(2))/P_(HNO_(3))ratios to obtain a range of thresholds for determining O_(3)-sensitivity regimes for different areas of *** the new threshold ranges for photochemical indicators,the method for determining O_(3)formation in the Ozone Source Apportionment Technology(OSAT)module within CAMx was improved by a dynamically varied threshold of P_(H_(2)O_(2))/P_(HNO_(3))*** O_(3)concentration contributions in the newly added transition regime were apportioned to NO_(x)and VOCs emissions in proportion to the relationship between the P_(H_(2)O_(2))/P_(HNO_(3))ratio and first-order O_(3)*** source contributions of O_(3)concentrations from different emission sectors from June to September 2019 were compared using the original and improved *** results showed that the O_(3)concentration contributions changed significantly in the NO_(x)-limited regime,with a maximum decrease of 21.89%,while the contributions increased by up to 7.57%in the VOC-limited regime,and were within 15μg/m^(3)in the transition *** modified OSAT module enabled a more sophisticated attribution of O_(3)to precursor emissions and may have far-reaching implications for informing O_(3)pollution control policy.

关键词： O_(3) modeling O_(3)-sensitivity regimes Ozone source apportionment technology Photochemical indicators

OnFractional(g,f,n′,m)-Critical Covered Graphs

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Journal of the Operations Research Society of China 2024年第2期12卷 446-460页

作者： wei Gao wei-fan Wang School of Information Science and Technology Yunnan Normal UniversityKunming 650500YunnanChina Department of Mathematics Zhejiang Normal UniversityJinhua 321004ZhejiangChina

The main contribution in this article is threefold:(1)we show the necessary and sufficient condition for graphs to be fractional(g,f)-covered which can be expressed in different forms,and extended to fractional(g,f,m)-covered graphs;(2)the concept of fractional-critical covered graph is put forward and its necessary and sufficient condition is given;(3)we present the degree condition for a graph to be fractional(g,f,n′,m)-critical covered,and show that degree bound is sharp when m is ***,the related result in fractional(a,b,n′,m)-critical covered setting is also verified.

关键词： Network Fractional factor Data transmission Fractional covered graph Fractional critical covered graph

Characteristics and genetic mechanism of the Mesoproterozoic rift system,Ordos Basin,China

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Energy Geoscience 2024年第1期5卷 141-152页

作者： meng Li Xiangbin Yan wei Zhang Yuanling Guo Chaoying Liu Lingling fan Shuang Yang Petroleum Exploration and Production Research Institute SINOPECBeijing100083China Exploration and Development Research Institute SINOPEC North China CompanyZhengzhouHenan450006China

The Mesoproterozoic rifts are developed in the Ordos Basin located in the western margin of the North China *** on the latest 3D seismic data and previous research results,this study intends to discuss the zonal differential deformation characteristics and genetic mechanism of the Mesoproterozoic rifts in the Ordos ***-trending rifts are developed in the Mesoproterozoic in the south-central Ordos Basin,the main part of which are located near the western margin of the North China ***-trending rifts are developed in the north of the basin,while NW-NNW rifts in the Mesoproterozoic in Hangjinqi *** genetic mechanism of the Mesoproterozoic rifts is related to regional extensional stress field,plate boundary conditions and internal preexisting *** main extensional stress direction strikes NWW-SSE(120°)in the western margin of the North China Plate,based on the forward rift trend of the northern *** Hangjinqi area,the reactivation of the existing NWtrending Wulansu fault and NW-NW-trending Daolao fault,results in dextral shear stress *** boundary between the western margin of the North China Plate and its adjacent plates forms a nearly NS-trending preexisting basement tectonic belt,which intersects with the NWW-SSE(120°)extensional stress at an acute angle of 60°.Therefore,the western margin of the North China Plate is formed by oblique normal faults under oblique *** to the long time span of Columbia Supercontinent breakup(1.8e1.6 Ga),the oblique rift in the south-central Ordos Basin is formed under the continuous oblique extension at the western margin of the North China Plate.

关键词： Columbia Supercontinent Ordos Basin Rift system Mesoproterozoic Genetic mechanism