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Multi-Stage Voltage Control Optimization Strategy for Distribution Networks Considering Active-Reactive Co-Regulation of Electric Vehicles

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Energy Engineering 2025年第1期122卷 221-242页

作者： Shukang Lyu Fei Zeng Huachun Han HuiyuMiao Yi pan Xiaodong yuan Electric Power Research Institute State Grid Jiangsu Electric Power Co.Ltd.Nanjing211103China

The high proportion of uncertain distributed power sources and the access to large-scale random electric vehicle(EV)charging resources further aggravate the voltage fluctuation of the distribution network,and the existing research has not deeply explored the EV active-reactive synergistic regulating characteristics,and failed to realize themulti-timescale synergistic control with other regulatingmeans,For this reason,this paper proposes amultilevel linkage coordinated optimization strategy to reduce the voltage deviation of the distribution ***,a capacitor bank reactive power compensation voltage control model and a distributed photovoltaic(PV)activereactive power regulationmodel are ***,an external characteristicmodel of EVactive-reactive power regulation is developed considering the four-quadrant operational characteristics of the *** optimization model of the distribution network is then constructed considering the time-series coupling constraints of multiple types of voltage regulators.A multi-timescale control strategy is proposed by considering the impact of voltage regulators on active-reactive EV energy consumption and PV energy ***,a four-stage voltage control optimization strategy is proposed for various types of voltage regulators with multiple time ***-objective optimization is solved with the improvedDrosophila algorithmto realize the power fluctuation control of the distribution network and themulti-stage voltage control *** results validate that the proposed voltage control optimization strategy achieves the coordinated control of decentralized voltage control resources in the distribution *** effectively reduces the voltage deviation of the distribution network while ensuring the energy demand of EV users and enhancing the stability and economic efficiency of the distribution network.

关键词： Electric vehicle(EV) distribution network multi-stage optimization active-reactive power regulation voltage control

Ⅰ型X射线暴和中子星周围物质的相互作用研究进展

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天文学进展 2023年第2期41卷 181-197页

作者：刘燕梅潘元月李兆升湘潭大学物理与光电工程学院“恒星与星际物质”省高校重点实验室湘潭411105

Ⅰ型X射线暴是发生在中子星小质量X射线双星表面的不稳定核燃烧过程。Ⅰ型X射线暴的辐射可对中子星周围的物质产生显著影响。文章回顾了Ⅰ型X射线暴与中子星周围物质之间的相互作用的观测结果和理论解释,包括坡印亭-罗伯逊效应引起的吸... 详细信息

Ⅰ型X射线暴是发生在中子星小质量X射线双星表面的不稳定核燃烧过程。Ⅰ型X射线暴的辐射可对中子星周围的物质产生显著影响。文章回顾了Ⅰ型X射线暴与中子星周围物质之间的相互作用的观测结果和理论解释,包括坡印亭-罗伯逊效应引起的吸积率增加、Ⅰ型X射线暴能谱中的吸收限特征、吸积盘反射、千赫兹准周期震荡信号的变化、冕冷却导致的硬X射线缺失等;此外,还介绍了NICER卫星相关观测的最新进展。

关键词： Ⅰ型X射线暴吸积盘冕

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昆明捞渔河国家湿地公园使用后绩效评价研究

广东园林 2022年第6期44卷 62-66页

作者：潘圆月陈桔昆明理工大学昆明650093

捞渔河国家湿地公园生态绩效及社会绩效的评价与优化,对促进滇池生态、提供更好的社会服务具有重要意义。通过构建综合评价指标体系,对其社会绩效、生态绩效进行量化分析,结果显示:湿地公园满足生态效益的同时也兼顾了社会效益。公园里... 详细信息

捞渔河国家湿地公园生态绩效及社会绩效的评价与优化,对促进滇池生态、提供更好的社会服务具有重要意义。通过构建综合评价指标体系,对其社会绩效、生态绩效进行量化分析,结果显示:湿地公园满足生态效益的同时也兼顾了社会效益。公园里的生境相对适宜,水生植物种类较丰富,群落呈现单优结构。公园的水质净化系统降低了入滇池的污染物含量,但净水能力还有待提升。湿地公园的游客流量很大,游客满意度较高。在此基础上,提出增加水生植物种类,营建有梯次的植物群落,提升湿地景观功能等优化建议。

关键词：绩效评价社会绩效生态绩效捞渔河国家湿地公园

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Bioactive materials from berberine-treated human bone marrow mesenchymal stem cells accelerate tooth extraction socket healing through the jaw vascular unit

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Science China Life Sciences 2025年

作者： Ruyu Wang Tianxiao Wang Ziyu Chen Jiandong Jiang Yifei Du Hua yuan Yongchu pan Yuli Wang Department of Oral and Maxillofacial Surgery The Affiliated Stomatological Hospital of Nanjing Medical University State Key Laboratory Cultivation Base of Research Prevention and Treatment for Oral Diseases Jiangsu Province Engineering Research Centre of Stomatological Translational Medicine Nanjing Medical University Department of Stomatology Chongzhou People's Hospital Medical Basic Research Innovation Centre for Cardiovascular and Cerebrovascular Diseases Ministry of Education International Joint Laboratory for Drug Target of Critical Illnesses School of PharmacyNanjing Medical University Institute of Medicinal Biotechnology Chinese Academy of Medical Sciences & Peking Union Medical College Department of Orthodontic The Affiliated Stomatological Hospital of Nanjing Medical University State Key Laboratory Cultivation Base of Research Prevention and Treatment for Oral Diseases Jiangsu Province Engineering Research Centre of Stomatological Translational Medicine Nanjing Medical University

Delayed tooth extraction socket(TES) healing can cause failure of subsequent oral implantation and increase socioeconomic burden on patients. Excessive amounts of M1 macrophages, apoptotic neutrophils(ANs), and neutrophil extracellular traps(NETs) impair alveolar bone regeneration during TES healing. In the present study, we first discovered that conditioned medium(CM) collected from berberine-treated human bone marrow mesenchymal stem cells(BBR-HB-CM) accelerated TES healing. BBR-HB-CM contained bioactive materials that promoted the polarization of macrophages from M1 to M2, impeded the formation of ANs and NETs, and modulated M2 macrophage efferocytosis in vivo and in vitro. Mechanistically, BBR-HB-CM promoted bone formation by inhibiting macrophage-myofibroblast transition and reprogrammed macrophage polarization through p85/AKT/mTOR pathway-dependent autophagy. The 3-methyladenine abolished the therapeutic effects of BBR-HB-CM. Further studies revealed that BBR-HB-CM accelerated TES healing in rats with type 2 diabetes mellitus. Overall, our results demonstrated that BBR-HB-CM had high potential to promote rapid TES healing.

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脉冲星减速研究与电磁和引力波辐射

天文学报 2015年第3期56卷 235-242页

作者：张月竹付妍妍魏益焕张承民禺少华潘元月郭元旗王德华渤海大学数理学院物理系锦州121000 中国科学院国家天文台北京100012 贵州师范大学物理与电子科学学院贵阳550001

脉冲星具有极强的磁场,由于其磁轴与自转轴并不完全重合,这使脉冲星存在电磁辐射.脉冲星靠消耗自转能来弥补辐射出去的能量,从而导致自旋速度的逐渐放慢.根据理论推导,对蟹状星云脉冲星(Crab)的初始周期进行预测,并推导出在未来任意时刻... 详细信息

脉冲星具有极强的磁场,由于其磁轴与自转轴并不完全重合,这使脉冲星存在电磁辐射.脉冲星靠消耗自转能来弥补辐射出去的能量,从而导致自旋速度的逐渐放慢.根据理论推导,对蟹状星云脉冲星(Crab)的初始周期进行预测,并推导出在未来任意时刻,在电磁辐射的影响下,其脉冲星自旋周期的演化规律.由于脉冲星的质量分布可能存在四极矩,引力波辐射也会使得脉冲星的旋转速度减小,因此进一步分析Crab脉冲星在引力波影响下自旋周期的变化.最后将两种辐射机制模型结合,对脉冲星在两种辐射机制共同作用下自旋周期的演化进行分析.

关键词：脉冲星:普通恒星中子星恒星:演化恒星:磁场

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中子星吸积加速与引力辐射影响

天文学报 2015年第3期56卷 225-234页

作者：付妍妍张月竹魏益焕张承民禺少华潘元月郭元旗王德华渤海大学数理学院物理系锦州121000 中国科学院国家天文台北京100012 贵州师范大学物理与电子科学学院贵阳550001

研究了中子星双星系统吸积过程中的中子星自旋加速,得到其周期随着吸积质量的变化关系,并且通过对中子星磁场与周期演化分析,对比脉冲星的观测,获得了理论与观测类似的结果,在此基础上,研究了引力辐射作用对中子星自旋加速过程的影响,... 详细信息

研究了中子星双星系统吸积过程中的中子星自旋加速,得到其周期随着吸积质量的变化关系,并且通过对中子星磁场与周期演化分析,对比脉冲星的观测,获得了理论与观测类似的结果,在此基础上,研究了引力辐射作用对中子星自旋加速过程的影响,并且推导了吸积过程中中子星自旋周期变化率,探讨了吸积与引力辐射影响相当的临界角速度Ω_(cr),评估了中子星的自旋在引力辐射下的影响.

关键词：脉冲星普通恒星中子双星普通 X射线双星恒星演化

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双中子星质量分布的统计研究

天文学报 2016年第6期57卷 647-656页

作者：杨佚沿张承民王德华潘元月周筑文贵州师范学院物理与电子科学学院贵阳550018 中国科学院国家天文台北京100012 贵州师范大学物理与电子科学学院贵阳550001 湘潭大学物理与光电工程学院湘潭411105

通过对12对双中子星(DNS)系统进行质量分布统计,得到其质量加权平均值为(1.339±0.042)M_⊙,其中主星和伴星的质量加权平均值分别为(1.439±0.036)M_⊙和(1.239±0.020)M_⊙.主星平均质量比伴星平均质量高,表明主星可能通过吸积获得质量... 详细信息

通过对12对双中子星(DNS)系统进行质量分布统计,得到其质量加权平均值为(1.339±0.042)M_⊙,其中主星和伴星的质量加权平均值分别为(1.439±0.036)M_⊙和(1.239±0.020)M_⊙.主星平均质量比伴星平均质量高,表明主星可能通过吸积获得质量,或者主星的前身星的质量更大.据此可以分析大质量恒星通过超新星爆发形成中子星的物理过程.此外还发现,DNS的总质量集中在一个比较狭小的范围(2.5–2.8 M_⊙),这说明DNS的质量形成受到伴星的影响.经过进一步的分析注意到DNS的质量比接近于1(略大于1),这可能暗示DNS系统的前身星质量比较相近.通过分析12对DNS在中子星的磁场强度-自旋周期关系图(B-P_s图)中的分布,发现DNS主星磁场强度约10^(10)Gs,自转周期约50 ms;PSR J1906+0746和PSR J0737-3039B处在正常脉冲星序列,磁场强度约10^(12)Gs,这说明两者没有吸积加速过程.

关键词：恒星中子,双星普通方法统计

七台河市生态文明建设气象保障服务的思考和探索

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黑龙江气象 2024年第3期41卷 44-46页

作者：毕然张嘉欣潘月媛七台河市气象局黑龙江七台河154600

1引言1.1背景生态文明建设,作为中国特色社会主义事业“五位一体”总体布局的核心构成,不仅是实现国家可持续发展战略的关键所在,更是时代进步的必然要求。随着我国民众生活水平的持续攀升,对优质生态环境的需求亦逐步扩大,大众的环保... 详细信息

1引言1.1背景生态文明建设,作为中国特色社会主义事业“五位一体”总体布局的核心构成,不仅是实现国家可持续发展战略的关键所在,更是时代进步的必然要求。随着我国民众生活水平的持续攀升,对优质生态环境的需求亦逐步扩大,大众的环保意识亦随之增强,这为生态文明的建设提供了坚实的基础和动力。在这一进程中,气象保障服务扮演着不可或缺的角色,它以基础性的科技支撑,确保了生态保护与建设工作的科学性和有效性。通过精准的气象预报和及时的服务响应,不仅能够提升生态系统的自我修复能力,增强其稳定性,还对促进生态系统质量的整体提升发挥着至关重要的作用。因此,加强气象保障服务,就是为生态文明建设注入了持久的活力和智慧的力量,是走向人与自然和谐共生之路的重要保障。

关键词：气象保障服务自我修复能力生态文明建设生态系统质量气象预报生态保护与建设民众生活水平环保意识

Unlocking the future:Mitochondrial genes and neural networks in predicting ovarian cancer prognosis and immunotherapy response

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World Journal of Clinical Oncology 2025年第1期16卷 43-52页

作者： Zhi-Jian Tang yuan-Ming pan Wei Li Rui-Qiong Ma Jian-Liu Wang Department of Obstetrics and Gynecology Peking University People’s HospitalBeijing 100044China Cancer Research Center Beijing Chest HospitalBeijing 101149China Department of Thoracic Surgery Sichuan Provincial People's HospitalChengdu 610072Sichuan ProvinceChina

BACKGROUND Mitochondrial genes are involved in tumor metabolism in ovarian cancer(OC)and affect immune cell infiltration and treatment *** To predict prognosis and immunotherapy response in patients diagnosed with OC using mitochondrial genes and neural *** Prognosis,immunotherapy efficacy,and next-generation sequencing data of patients with OC were downloaded from The Cancer Genome Atlas and Gene Expression *** genes were sourced from the MitoCarta3.0 *** discovery cohort for model construction was created from 70% of the patients,whereas the remaining 30% constituted the validation *** the expression of mitochondrial genes as the predictor variable and based on neural network algorithm,the overall survival time and immunotherapy efficacy(complete or partial response)of patients were *** In total,375 patients with OC were included to construct the prognostic model,and 26 patients were included to construct the immune efficacy *** average area under the receiver operating characteristic curve of the prognostic model was 0.7268[95% confidence interval(CI):0.7258-0.7278]in the discovery cohort and 0.6475(95%CI:0.6466-0.6484)in the validation *** average area under the receiver operating characteristic curve of the immunotherapy efficacy model was 0.9444(95%CI:0.8333-1.0000)in the discovery cohort and 0.9167(95%CI:0.6667-1.0000)in the validation *** The application of mitochondrial genes and neural networks has the potential to predict prognosis and immunotherapy response in patients with OC,providing valuable insights into personalized treatment strategies.

关键词： Ovarian cancer Mitochondria Prognosis Immunotherapy Neural network