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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 uncertainties,an imitation learning based real-time decision-mak-ing solution for microgrid economic dispatch is *** this solution,the optimal dispatch trajectories obtained by solving the optimal problem using historical deterministic operation patterns are demonstrated as the expert samples for imitation *** improve the generalization performance of imitation learning and the expressive ability of uncertain variables,a hybrid model combining the unsupervised and supervised learning 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 various 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%,respectively,overa test period of three months.

关键词： Energy management imitation learning datadriven decision economic dispatch

Pharmacological targeting cGAS/STING/NF-κB axis by tryptanthrin induces microglia polarization toward M2 phenotype and promotes functional recovery in a mouse model of spinal cord injury

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Neural Regeneration Research 2025年第11期20卷 3287-3301页

作者： Ziwei Fan Mengxian Jia Jian Zhou Zhoule Zhu Yumin Wu Xiaowu Lin Yiming Qian Jiashu Lian Xin Hua Jianhong dong Zheyu fang Yuqing Liu Sibing Chen Xiumin Xue Juanqing Yue Minyu Zhu Ying Wang Zhihui Huang Honglin Teng Department of Orthopedics(Spine Surgery) the First Affiliated Hospital of Wenzhou Medical UniversityWenzhouZhejiang ProvinceChina School of Pharmacy Hangzhou Normal UniversityHangzhouZhejiang ProvinceChina Department of Neurology The First Affiliated Hospital of Wenzhou Medical UniversityWenzhouZhejiang ProvinceChina Department of Pathology Affiliated Hangzhou First People’s HospitalSchool of MedicineWestlake UniversityHangzhouZhejiang ProvinceChina Department of Clinical Research Center Affiliated Hangzhou First People’s HospitalSchool of MedicineWestlake UniversityHangzhouZhejiang ProvinceChina

The M1/M2 phenotypic shift of microglia after spinal cord injury plays an important role in the regulation of neuroinflammation during the secondary injury phase of spinal cord *** of shifting microglia polarization from M1(neurotoxic and proinflammatory type)to M2(neuroprotective and anti-inflammatory type)after spinal cord injury appears to be *** possesses an anti-inflammatory biological ***,its roles and the underlying molecular mechanisms in spinal cord injury remain *** this study,we found that tryptanthrin inhibited microglia-derived inflammation by promoting polarization to the M2 phenotype in *** promoted M2 polarization through inactivating the cGAS/STING/NF-κB ***,we found that targeting the cGAS/STING/NF-κB pathway with tryptanthrin shifted microglia from the M1 to M2 phenotype after spinal cord injury,inhibited neuronal loss,and promoted tissue repair and functional recovery in a mouse model of spinal cord ***,using a conditional co-culture system,we found that microglia treated with tryptanthrin suppressed endoplasmic reticulum stress-related neuronal *** together,these results suggest that by targeting the cGAS/STING/NF-κB axis,tryptanthrin attenuates microglia-derived neuroinflammation and promotes functional recovery after spinal cord injury through shifting microglia polarization to the M2 phenotype.

关键词： cGAS/STING functional recovery microglia neuroinflammation neuroprotection nuclear factor-κB polarization spinal cord injury tryptanthrin

Automatic identification and feature recognition of the metro-led underground space in China based on point of interest data

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Underground Space 2023年第2期9卷 186-199页

作者： Yun-Hao dong fang-Le Peng yang Du Yan-Qing Men Research Center for Underground Space and Department of Geotechnical Engineering Tongji UniversityShanghai 200092China Jinan Rail Transit Group Co. LTD.JinanShandong 250101China

Metro-led underground space(MUS)plays a crucial role in modern underground space *** studies have shown its great potential for high-quality urban ***,limited evidence about MUS was available on a national scale,resulting in incomplete and unsystematic knowledge of MUS *** interaction relationship between MUS and the surrounding built environment also remains *** fill the research gap,an automatic method for MUS identification and development features extraction was proposed based on point of interest *** applied the method to identify the MUS in 28 Chinese cities and estimated the development status of MUS in China for the first *** nationwide statistics of MUS and correlation analysis of development features were *** show that complex MUS(CMUS)share is significantly lower than that of simple ***,CMUS development in China is primarily dominated by public transport and does not have a solid functional link to its *** comparative analysis of MUS development in four primary urban agglomerations was also conducted,and their development char-acteristics were *** study aims to expand the planning toolkit and construct the MUS database,which sheds light on the data-driven planning for MUS.

关键词： Development features Metro-led underground space Point of interest

TDDFT Study on Excited-State Hydrogen Bonding of 2'-Deoxyguanosine in H2O Solution

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Chinese Journal of Chemical Physics 2015年第6期28卷 -页

作者： dong-lin Li Hui Li Yong-gang yang Yu-fang Liu Department of Physics Henan Normal University Xinxiang 453007 China

The mono and dihydrated complexes of 2′-deoxyguanosine have been used to elucidate the importance of the 2′-hydroxy group in the hydration. Density functional theory and time-dependent density functional theory methods were performed to investigate the ground-and excited-statehydrogen bonding properties of 2′-deoxyguanosine-water (2′-dG-W) and 2′-deoxyguanosine-2water (2′-dG-2W). Infrared spectra, geometric optimizations, frontier molecular orbitals and Mulliken charges have also been studied. The results demonstrated that the excited-state intramolecular hydrogen bonding dynamics of complexes 2′-dG-W and 2′-dG-2W behaves differently upon photoexcitation, while their intermolecular hydrogen bonding dynamics behaves similarly. Moreover, the significant weakening of the intermolecular hydrogen bond O4?H1–N1 and the formation of the new strong hydrogen bond O4?H3–N2 in the 2′-dG-2W upon photoexcitation were due to the geometric structure bending of guanine and the rigidity of related molecules. In addition, the charge transfer properties were theoretically investigated by analysis of molecular orbital.

关键词： Hydrate Time-dependent density functional theory Rigidity Hydrogen bonding dynamics

Experimental investigation of turbulent flows around high-rise structure foundations and implications on scour

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Water Science and Engineering 2022年第1期15卷 47-56页

作者： dong-fang Liang Hao Jia yang Xiao Sai-yu Yuan Department of Engineering University of CambridgeCambridge CB21PZUK State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering Hohai UniversityNanjing 210098China yangtze Institute for Conservation and Development Hohai UniversityNanjing 210098China

Many studies have been undertaken to predict local scour around offshore high-rise structure foundations(HRSFs),which have been used in constructing the donghai Wind Farm in ***,there have been few works on the turbulent flow that drives the scour *** this study,the characteristics of the turbulent flow fields around an HRSF were investigated using the particle image velocimetry *** mean flow,vorticity,and turbulence intensity were analyzed in *** relationship between the flow feature and scour development around an HRSF was *** results showed that the flow velocity increased to its maximum value near the third row of the pile *** shear layer and wake vortices could not be fully developed downstream of the last row of the piles at small Reynolds *** strong flow and turbulent fluctuation near the third piles explained the existence of a longtail scour pattern starting from the HRSF shoulders and a trapezoidal deposition region directly downstream of *** laboratory experiment gains insight into the mechanism of the turbulent flow around HRSFs and provides a rare dataset for numerical model verifications.

关键词： High-rise structure foundations(HRSFs) Turbulent flow fields Particle image velocimetry(PIV) Scour Sediment transport

Enhanced photocatalytic degradation and H_(2) evolution performance of N-CDs/S-C_(3)N_(4)S-scheme heterojunction constructed byπ-πconjugate self-assembly

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Journal of Materials Science & Technology 2022年第19期114卷 222-232页

作者： Xibao Li Qiuning Luo Lu Han fang Deng Ya yang Fan dong School of Materials Science and Engineering Nanchang Hangkong UniversityNanchang 330063China Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle Nanchang Hangkong UniversityNanchang 330063China School of Materials and Metallurgy University of Science and Technology LiaoningAnshan 114051China CAS Center for Excellence in Nanoscience Beijing Institute of Nanoenergy and NanosystemsChinese Academy of SciencesBeijing 101400China Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of ChinaChengdu 611731China

Constructing heterojunction between two semiconductors with matched energy band structure is an effective modification method to obtain excellent *** experimental scheme adopts a simple solvent method to self-assemble nitrogen doped carbon dots(N-CDs)on the surface of sulfur doped carbon nitride(S-C_(3)N_(4))semiconductor throughπ-πconjugate *** on this,a novel 0D/2D S-scheme heterojunction N-CDs/S-C_(3)N_(4)hybrid was successfully *** degradation kinetic constants of N-CDs/S-C_(3)N_(4)for rhodamine B(RhB)and p-nitrophenol(PNP)reached 0.23522 and 0.01342 min^(−1),repectively,which were 2.72 and 2.65 times that of S-C_(3)N_(4).The highest photocatalytic hydrogen evolution rate was observed under the simulated sunlight irradiation,which was 2.30 times that of S-C_(3)N_(4).The improvement of photocatalytic performance was mainly based on the formation of the S-scheme heterojunction between S-C_(3)N_(4)and *** effects of internal electric field,π-πconjugate interaction and band bending promoted the photogenerated h^(+)and e^(−) with low redox ability to recombine and retained the beneficial h+and e−with strong redox ability,which contributed to the production of more active species of h^(+) and•O_(2)−,therefore the photocatalytic degradation and hydrogen evolution performance were significantly enhanced.

关键词： S-scheme Internal electric field Hydrogen evolution C_(3)N_(4) π–πinteraction

Critical assessment of mixing thermodynamic functions of Fe-Al binary melts based on atom-molecule coexistence theory

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Journal of Iron and Steel Research International 2020年第3期27卷 266-281页

作者： Xue-min yang Jin-yan Li fang-jia Yan dong-ping Duan CAS Key Laboratory of Green Process and Engineering Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China Department of Metallurgy and Raw Materials China Metallurgical Industry Planning and Research InstituteBeijing 100711China

In order to further verify the accuracy and feasibility of the calculated mass action concentrations Ni of Al and Fe by the developed atom and molecule coexistence theory(AMCT)model,i.e.,AMCT-N,model,for representing activities aR,i of Al and Fe in Fe-Al binary melts reported in the first part of the serial studies,the molar mixing thermodynamic functions of Fe-Al binary melts over a temperature range from 1823 to 1973 K have been calculated based on Ni of Al and Fe as well as the effect of temperature on activity coefficients 7,of Al and Fe as■lnγj/■T=■ln(Ni/xi)/dT by the developed AMCTN-Ni model,where T is absolute temperature and.v,is the mole fraction of element i or compound i in metallic *** reported molar mixing thermodynamic functions of Fe-Al binary melts as well as the reported excess molar mixing thermodynamic functions of Fe-Al binary melts relative to ideal solution as a basis from the available literatures have been critically assessed and applied as criteria to verify the developed AMCT-Al,*** effect of changing temperature onγi of Al and Fe,i.e.,activity coefficient gradients■lnγAl/■T and■lnγFe/■T,which are two indispensable parameters to calculate the molar mixing thermodynamic functions of Fe-Al binary melts,can be accurately obtained by the developed AMCT-Ni,model and expressed by the cubic polynomial *** only the partial molar mixing thermodynamic functions of Al and Fe in Fe-Al binary melts but also the integral molar mixing thermodynamic functions of Fe-Al binary melts can be accurately calculated by the developed AMCT-Al,***,the excess partial and integral molar mixing thermodynamic functions of Fe-Al binary melts relative to ideal solution as a basis can also be precisely calculated by the developed AMCT-Ni,model.

关键词： Thermodynamic assessment Fe-Al binary melt Molar mixing thermodynamic function Excess molar mixing thermodynamic function Activity Atom and molecule coexistence theory

Photodissociation Exploration for Near-Visible UV Absorption of Molecular Bromine

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Chinese Journal of Chemical Physics 2008年第1期21卷 12-20页

作者： dong-fang Zhang Bing Zhang State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics Wuhan Insti-tute of Physics and Mathematics Chinese Academy of Sciences Wuhan 430071 China Graduate School of Chinese Academy of Sciences Beijing 100039 China

The photodissociation of Br2 was investigated within the near-visible UV absorption band. Based on the potential curves for the ground and low-lying excited states, the optical cross-sections for the discrete transitions of C1^Пu,B^3Пou^＋, A^3П1u←X^1∑g＋ and their total energy absorption spectrum are derived, and the quantum yield of （Br＋Br6＊） channel are determined correspondingly. The one-dimensional Landau-Zener model is used to evaluate the behavior of curve crossing during photodissociation. The results indicate that the influence of nonadiabatic mechanism, which may be caused by the electronic-vibrational interplay between the 13 and C states, is negligibly small for the （Br＋Br^＊） channel. From the Landau-Zener modeling of the observed product recoil parameter β（Br＋Br）, the best-fit value of the coupling matrix elenment or coupling strength between the diabatic B and C state potentials is obtained.

关键词： Photodissociation Time-dependent wave packet Nonadiabatic mechanism Landau-Zener model

Novel Nuclear Protein ALC-INTERACTING PROTEIN1 is Expressed in Vascular and Mesocarp Cells in Arabidopsis

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Journal of Integrative Plant Biology 2008年第7期50卷 918-927页

作者： fang Wang dong-Qiao Shi Jie Liu Wei-Cai yang Key Laboratory of Molecular and Developmental Biology National Centre for Plant Gene Research Institute of Genetics and Developmental Biology the Chinese Academy of Sciences Beijing 100101 China Graduate University the Chinese Academy of Sciences Beijing 100039 China

Pod shattering is an agronomical trait that is a result of the coordinated action of cell differentiation and separation. In Arabidopsis, pod shattering is controlled by a complex genetic network in which ALCATRAZ （ALC）, a member of the basic helix-loop-helix family, is critical for cell separation during fruit dehiscence. Herein, we report the identification of ALC-INTERACTING PROTEIN1 （ACI1） via the yeast two-hybrid screen. ACll encodes a nuclear protein with a lysine-rich domain and a C-terminal serine-rich domain. ACI1 is mainly expressed in the vascular system throughout the plant and mesocarp of the valve in siliques. Our data showed that ACI1 interacts strongly with the N-terminal portion of ALC in yeast cells and in plant cells in the nucleus as demonstrated by bimolecular fluorescence complementaUon assay. Both ACI1 and ALC share an overlapping expression pattern, suggesting that they likely function together in planta. However, no detectable phenotype was found in plants with reduced ACll expression by RNA interference technology, suggesting that ACll may be redundant. Taken together, these data indicate that ALC may interact with ACI1 and its homologs to control cell separation during fruit dehiscence in Arabidopsis.

关键词： ALC-INTERACTING PROTEIN1 ALCATRAZ Arabidopsis basic helix-loop-helix nuclear protein transcription factor.