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Reliability of Nationwide Transmission and Substation Facilities and Urban Consumer's Power Supply in 2005

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Electricity 2006年第3期17卷 45-51页

作者： Chen Lijuan Jia lixiong Chu xue（Translated） Electric Reliability Management Center China Electricity Council 不详

In 2005 there were 325 supply enterprises （including 29 EHV transmission and substation enterprises） and 221 generation enterprises all over the country. Main reliability indexes of 13 kinds of transmission and subs... 详细信息

关键词：可靠性 2005年能源消费电力供应供电企业

Robust Expansion Planning of Electric Vehicle Charging System and Distribution Networks

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CSEE Journal of Power and Energy Systems 2024年第6期10卷 2457-2469页

作者： Yue Xiang Ping xue Yanliang Wang lixiong Xu Wang Ma Miadreza Shafie-khah Junlong Li Junyong Liu College of Electrical Engineering Sichuan UniversityChengdu 610065China State Grid Sichuan Technical Training Center Sichuan Electric Vocational and Technical Collegeand also the College of Electrical EngineeringSichuan UniversityChengdu 610065China School of Technology and Innovations University of VaasaVaasa 8130Finland Department of Electronic and Electrical Engineering University of BathBath BA27AYUK

Large integration of electric vehicles(EVs)brings uncertainties and challenges for distribution *** and allocation of charging systems(charging stations and piles)need strong support from the distribution network,whose expansion planning would be also greatly impacted by the incremental load from the charging *** address this issue,a collaborative planning scheme of the EV charging system and distribution networks that combines economic and reliability benefits is proposed,which is formulated as a two-stage distributionally robust optimization model considering source-load ***,a candidate EVCS planning scheme is obtained using queuing ***,system reliability is quantified by adopting the average energy not supplied index and correlated integrated into the two-stage mixed-integer linear programming ***,it is solved to perform distributionally robust expansion planning by the column and constraint generation *** and scalability of the proposed planning method are illustrated by numerical case *** indicate the planning scheme that considers economic and reliability benefit can perform better than traditional optimization methods.

关键词： Distribution network planning distributionally robust optimization electric vehicle reliability benefit

Identification of candidate biomarkers and therapeutic drugs of colorectal cancer by integrated bioinformatics analysis

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Identification of candidate biomarkers and therapeutic drugs...

2021第26届广东省药师周大会

作者： Zhuoling Zheng Jingwen Xie lixiong Xiong Min Gao Li Qin Chunmei Dai Zhikun Liang Yiting Wang Jing xue Qinbo Wang Wenhui Wang Xiaoyan Li Department of Pharmacy The Sixth Affiliated Hospital Sun Yat-Sen University Network Information Center The Sixth Affiliated Hospital Sun Yat-Sen University National Engineering Research Center of Digital Life Sun Yat-sen University

Objective: Most colorectal cancer(CRC) patients are diagnosed with advanced stages and low prognosis. We aimed to identify potential diagnostic and prognostic biomarkers, as well as active small molecules of CRC. Methods: Microarray data(GSE9348, GSE35279, and GSE106582) were obtained from the Gene Expression Omnibus database. Differentially expressed genes(DEGs) were identified by the GEO2R platform. Common DEGs were selected for Gene Ontology(GO) and Kyoto Encyclopedia of Genes and Genomes(KEGG) enrichment analysis. Cytoscape software were used to construct protein-protein interaction networks and identify hub genes. Hub genes were evaluated by Kaplan–Meier survival analysis in the GEPIA database and validated in two independent microarray data(GSE74602 and GSE83889). Common DEGs were used to select active small molecules by the connectivity map database. Results: A total of 166 DEGs were identified as common DEGs. GO analysis demonstrated that common DEGs were significantly enriched in the apoptotic process, cell proliferation and cell adhesion. KEGG analysis indicated that the most enriched pathways were the PI3K-Akt signaling pathway and extracellular matrix-receptor interaction. COL1A2, THBS2, TIMP1 and CXCL8 significantly upregulated in colorectal tumor. High expressions of COL1A2, THBS2, TIMP1 were associated with poor survival, while high expressions of CXCL8 were associated with better survival. We selected 11 small molecules for CRC therapy. Conclusion: We found key dysregulated genes associated with CRC and potential small molecules to reverse them. COL1A2, THBS2, TIMP1 and CXCL8 may act as diagnostic and prognostic biomarkers of CRC.

关键词： Colorectal cancer biomarker COL1A2 THBS2 TIMP1 CXCL8

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在线校正的无人车五次样条实时路径规划方法

火力与指挥控制 2022年第9期47卷 137-142,152页

作者：张立雄郭艳李宁宋晓祥薛端陆军工程大学南京210001

针对时变行驶环境下对路径规划乘坐舒适性、稳定性、实时性和连续性的要求,提出了一种在线校正的无人车五次样条实时路径规划方法。基于五次样条曲线的路径生成模型,考虑速度、加速度和横摆角速度等约束,以平均曲率最小和距离最短为目... 详细信息

针对时变行驶环境下对路径规划乘坐舒适性、稳定性、实时性和连续性的要求,提出了一种在线校正的无人车五次样条实时路径规划方法。基于五次样条曲线的路径生成模型,考虑速度、加速度和横摆角速度等约束,以平均曲率最小和距离最短为目标设计了目标函数,利用序列二次规划算法(SQP)优化参数。设计了基于映射查找表的动态迭代路径规划方法,通过搜索最佳分割点和在线校正参数快速规划路径。仿真结果表明,所提方法具有较好的性能。

关键词：无人车五次样条路径规划序列二次规划在线校正

埋碳条件下氮化硅铁-刚玉复合材料的反应机理

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硅酸盐学报 2014年第9期42卷 1184-1188页

作者：秦海霞李勇孙加林白立雄李传静陈俊红薛文东北京科技大学材料科学与工程学院北京100083

以热固型酚醛树脂为结合剂,在刚玉中分别引入质量分数为0、5%、10%、15%、20%、25%的氮化硅铁,制备出氮化硅铁-刚玉复合材料。结果表明:样品在埋碳气氛下于1 450℃保温24h处理后,常温耐压强度增加;添加氮化硅铁质量分数为15%的样品,耐... 详细信息

以热固型酚醛树脂为结合剂,在刚玉中分别引入质量分数为0、5%、10%、15%、20%、25%的氮化硅铁,制备出氮化硅铁-刚玉复合材料。结果表明:样品在埋碳气氛下于1 450℃保温24h处理后,常温耐压强度增加;添加氮化硅铁质量分数为15%的样品,耐压强度达到132MPa。氮化硅铁中部分Fe3Si转化成为Fe4N;热固酚醛树脂结合剂中部分残碳与氮气反应生成C3N4;氮化硅与刚玉发生固溶,生成Si5AlON7(Z=1)。氮化硅铁中的氮化硅与刚玉固溶形成Sialon。新形成的物相(Fe4N、C3N4和Si5AlON7)改善了样品的性能。

关键词：氮化硅铁刚玉 β-Sialon 埋碳

基于多智能体强化学习的无人车分布式路径规划方法

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电声技术 2021年第3期45卷 52-57页

作者：张立雄郭艳李宁宋晓祥薛端陆军工程大学江苏南京210001

在危险系数较高的救援、勘察或补给等重要任务中,为避免人员伤亡,需要无人车具备自主探索并协同到达多个目标位置的能力。基于此,提出一种基于多智能体强化学习的无人车分布式路径规划模型,通过集中训练方式生成无人车的行驶策略。仿真... 详细信息

在危险系数较高的救援、勘察或补给等重要任务中,为避免人员伤亡,需要无人车具备自主探索并协同到达多个目标位置的能力。基于此,提出一种基于多智能体强化学习的无人车分布式路径规划模型,通过集中训练方式生成无人车的行驶策略。仿真结果证明了该方法的有效性。

关键词：自主协同多智能体强化学习无人车路径规划