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Journal of Modern Power Systems and Clean Energy 2024年第2期12卷 475-487页

作者： Shida Zhang shaoyun ge Hong Liu Guocheng Hou Chengshan Wang School of Electrical and Information Engineering Tianjin UniversityTianjin 300072China

To provide guidance for photovoltaic(PV)system integration in net-zero distribution systems(DSs),this paper proposes an analytical method for delineating the feasible region for PV integration capacities(PVICs),where the impact of battery energy storage system(BESS)flexibility is considered.First,we introduce distributionally robust chance constraints on network security and energy/carbon net-zero requirements,which form the upper and lower bounds of the feasible region.Then,the formulation and solution of the feasible region is proposed.The resulting analytical expression is a set of linear inequalities,illustrating that the feasible region is a polyhedron in a high-dimensional space.A procedure is designed to verify and adjust the feasible region,ensuring that it satisfies network loss constraints under alternating current(AC)power flow.Case studies on the 4-bus system,the IEEE 33-bus system,and the IEEE 123-bus system verify the effectiveness of the proposed method.It is demonstrated that the proposed method fully captures the spatio-temporal coupling relationship among PVs,loads,and BESSs,while also quantifying the impact of this relationship on the boundaries of the feasible region.

关键词： Net-zero distribution system photovoltaic(PV)integration capacity feasible region battery energy storage system(BESS).

Enhancement of liquideliquid micromixing performance in curved capillary microreactor by generation of Dean vortices

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Chinese Journal of Chemical Engineering 2024年第4期68卷 76-82页

作者： shaoyun Wu Zhuang Ma Zichi Yang Suying Zhao Caijin Zhou Huidong Zheng Fujian Engineering Research Center of Advanced Manufacturing Technology for Fine Chemicals College of Chemical EngineeringFuzhou UniversityFuzhou 350108China Qingyuan Innovation Laboratory Quanzhou362114China

Micromixing efficiency is an important parameter for evaluating the multiphase mass transfer performance and reaction efficiency of microreactors.In this work,the novel curved capillary reactor with different shapes was designed to generate Dean flow,which was used to enhance the liquideliquid micromixing performance.The VillermauxeDushman probe reaction was employed to characterize the micromixing performance in different curved capillary microreactors.The effects of experiment parameters such as liquid flow rate,inner diameter,tube length,and curve diameter on micromixing performance were systematically investigated.Under the optimal conditions,the minimum value of the segmentation factor XS was 0.008.It was worth noting that at the low Reynolds number(Rege of curved shape on the capillary microreactor can significantly improve the micromixing performance with XS reduced by 37.5%.Further,the correlations of segment index XS with dimensionless factor such as Reynolds number or Dean number were developed,which can be used to predict the liquide liquid micromixing performance in capillary microreactors.

关键词： Microreactor Process intensification Micromixing performance Dean flow

CsRAXs negatively regulate leaf size and fruiting ability through auxin glycosylation in cucumber

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Journal of Integrative Plant Biology 2024年第5期66卷 1024-1037页

作者： Jiacai Chen Liu Liu Guangxin Chen shaoyun Wang Ye Liu Zeqin Zhang Hongfei Li Liming Wang Zhaoyang Zhou Jianyu Zhao Xiaolan Zhang Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Crops Department of Vegetable SciencesBeijing key Laboratoy of Growtn and Developmental Regul China Agricultural UniversityBeijing 100193China

Leaves are the main photosynthesis organ that directly determines crop yield and biomass.Dissecting the regulatory mechanism of leaf development is crucial for food security and ecosystem turn-over.Here,we identified the novel function of R2R3-MYB transcription factors CsRAXs in regulating cucumber leaf size and fruiting ability.Csrax5 single mutant exhibited enlarged leaf size and stem diameter,and Csrax1/2/5 triple mutant displayed further enlargement phenotype.Overexpression of CsRAX1 or CsRAX5 gave rise to smaller leaf and thinner stem.The fruiting ability of Csrax1/2/5 plants was significantly enhanced,while that of CsRAX5 overexpression lines was greatly weakened.Similarly,cell number and free auxin level were elevated in mutant plants while decreased in overexpression lines.Biochemical data indicated that CsRAX1/5 directly promoted the expression of auxin glucosyltransferase gene CsUGT74E2.Therefore,our data suggested that CsRAXs function as repressors for leaf size development by promoting auxin glycosylation to decrease free auxin level and cell division in cucumber.Our findings provide new gene targets for cucumber breeding with increased leaf size and crop yield.

关键词： auxin glycosylation CsRAXs CsUGT74E2 fruiting ability leaf size

基于分布鲁棒优化的车-站-网日前能量管理与交易

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电力系统自动化 2024年第5期48卷 11-20页

作者：葛少云杜咏梅郭玥崔凯刘洪李俊锴智能电网教育部重点实验室(天津大学) 天津市300072 国网经济技术研究院有限公司北京市102209

为考虑上级电网电价、光伏出力等多重多层级不确定性对车-站-网互动博弈模型的影响,且充分体现配电网主动管理技术支撑效果,文中提出了一种基于分布鲁棒优化的车-站-网能量管理与交易方法。首先,针对主动配电网内多元主体能量管理与交... 详细信息

为考虑上级电网电价、光伏出力等多重多层级不确定性对车-站-网互动博弈模型的影响,且充分体现配电网主动管理技术支撑效果,文中提出了一种基于分布鲁棒优化的车-站-网能量管理与交易方法。首先,针对主动配电网内多元主体能量管理与交易问题,建立了配电网运营商、充电站和电动汽车的日前市场互动框架。其次,融合主动网络管理技术和网络约束,在配电网运营商与聚合了电动汽车的多个充电站之间构建了以多主体各自利益最大为目标的双层Wasserstein分布鲁棒互动博弈模型。然后,提出了结合Karush-Kuhn-Tucker条件、对偶原理和大M法的化简方法以解决多层级不确定性造成的求解难题,将双层Wasserstein分布鲁棒模型转化为单层混合整数二阶锥规划模型,并利用商业求解器YALMIP/GUROBI进行了求解。最后,通过算例仿真验证了所提模型和方法的有效性。

关键词：分布鲁棒优化能量管理与交易主动配电网互动博弈多层级不确定性

Antioxidant peptides from Lateolabrax japonicus to protect against oxidative stress injury in Drosophila melanogaster via biochemical and gut microbiota interaction assays

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Food Science and Human Wellness 2024年

作者： Chen Li Lichan Li Jing Cheng Xu Chen Mohamed A.Farag Xixi Cai shaoyun Wang College of Chemical Engineering College of Biological Science and Engineering Fuzhou University Pharmacognosy Department Faculty of Pharmacy Cairo University

Identification of natural substances with antioxidant properties is ongoing research for addressing issues related to oxidative stress especially attributed to environmental effects. Our previous study demonstrated that Lateolabrax japonicus peptides （LPH）， rich in Glu， Gly， and hydrophobic amino acids， exhibited remarkable antioxidant activity in vitro， with though its action mechanism yet to be revealed. Therefore， to assess the in vivo antioxidative properties of LPH， we employed H2O2to generate oxidative stress in Drosophila melanogaster model. Results indicated that LPH significantly prolonged the lifespan of Drosophila subjected to oxidative stress mostly mediated via LPH's enhancement of the antioxidant defense system and intestinal functions. Antioxidant effects were manifested by a decrease in malondialdehyde （MDA） levels， elevated superoxide dismutase （SOD）， catalase （CAT）， and glutathione peroxidase （GSH-Px） activities， decreased levels of reactive oxygen species （ROS） in intestinal epithelial cells， and the preservation of intestinal length. LPH effectively controlled the excessive proliferation and differentiation of oxidative stress-induced Drosophila intestinal stem cells. At the gene level， LPH upregulated the expression of antioxidant-related Nrf2 genes while concurrently downregulated mTOR expression level. Furthermore， high-throughput 16S rDNA sequencing revealed that the addition of LPH significantly influenced the diversity and abundance of the intestinal microbiota in H2O2-induced Drosophila. These findings provide a deeper understanding of the antioxidative mechanism of LPH， suggesting its potential applications in food industry and to be assessed using other in vivo oxidative stress models.

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基于压缩感知的智能电网高级量测体系

高电压技术 2024年第5期50卷 2088-2096页

作者：袁博葛少云刘洪冯喜春魏孟举天津大学电气自动化与信息工程学院天津300072 国网河北省电力有限公司经济技术研究院石家庄050021

针对高级量测体系中的海量数据问题,首次引入压缩感知以克服传统数据压缩方法的不足,深入探索了基于压缩感知的高级量测体系(advanced metering infrastructure based on compressed sensing,AMI-CS)。首先,在分析各类数据特点的基础上... 详细信息

针对高级量测体系中的海量数据问题,首次引入压缩感知以克服传统数据压缩方法的不足,深入探索了基于压缩感知的高级量测体系(advanced metering infrastructure based on compressed sensing,AMI-CS)。首先,在分析各类数据特点的基础上,提出了基于时间和基于空间的2种基本模型及其选取原则;然后,设计模型中的关键要素,提出分类K-SVD稀疏基和适用于时间模型的优选重构算法,并设置二进稀疏测量方式、通用重构算法及适用采集参数;基于此,形成了AMI-CS具体构建方案。实验结果表明,所提出的AMI-CS方案关键要素均具合理性,优于CS传统要素且较传统压缩提升了抗丢包性,通过合理选择压缩比,数据重构信噪比在58 dB以上、重构误差在0.24%以下,满足AMI要求。

关键词：压缩感知高级量测体系基本模型具体构建方案分类K-SVD稀疏基重构算法

基于分布鲁棒机会约束的高韧性配电网多类型储能配置

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电力自动化设备 2024年第7期44卷 45-53页

作者：杨白洁刘洪葛少云李俊锴张世达天津大学智能电网教育部重点实验室天津300072

针对当前多类型储能系统(ESS)配置尚未充分计及正常工况与极端灾害等多元场景下源、网、荷多重不确定性复杂耦合影响的问题,提出了一种兼顾配电网韧性和经济性的多类型ESS配置方法。提出了面向多元场景差异化需求的多类型ESS优化配置框... 详细信息

针对当前多类型储能系统(ESS)配置尚未充分计及正常工况与极端灾害等多元场景下源、网、荷多重不确定性复杂耦合影响的问题,提出了一种兼顾配电网韧性和经济性的多类型ESS配置方法。提出了面向多元场景差异化需求的多类型ESS优化配置框架,建立了以配电网韧性和经济性最优为目标的配置模型。考虑元件故障、源荷出力等多重不确定性,将原模型构建为两阶段分布鲁棒机会约束模型。提出了基于Big-M和条件风险价值理论的系统化线性方法,基于列和约束生成算法对线性化模型求解。在改进的IEEE 33节点配电网与43节点交通网算例上验证,结果表明,所提方法可显著降低负荷损失及投资,提升配电网韧性和经济性。

关键词：配电网韧性多类型储能系统条件风险价值分布鲁棒机会约束

温度和疲劳共同作用对溴化丁基橡胶气体阻隔性能的影响

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高分子材料科学与工程 2024年第2期40卷 134-140页

作者：张帆张力伟熊英郭少云成都理工大学商学院四川成都610059 四川大学高分子研究所四川成都610065

溴化丁基橡胶(BIIR)因其出色的气体阻隔性能成为轮胎内衬层首选材料,但轮胎使用过程中因摩擦生热产生的高温和滚动过程中的屈挠疲劳作用,其性能和使用寿命将会受到很大的影响,因此,探索温度和疲劳作用对BIIR气体阻隔性能的影响具有重要... 详细信息

溴化丁基橡胶(BIIR)因其出色的气体阻隔性能成为轮胎内衬层首选材料,但轮胎使用过程中因摩擦生热产生的高温和滚动过程中的屈挠疲劳作用,其性能和使用寿命将会受到很大的影响,因此,探索温度和疲劳作用对BIIR气体阻隔性能的影响具有重要意义。文中对比研究了温度和屈挠疲劳单因素作用以及双因素作用下,BIIR气体阻隔性能的变化情况;通过交联密度测试、动态力学热分析及透射电镜等手段,探寻了BIIR在温度和疲劳双因素作用下其分子交联网络和填料分布情况的变化。结果表明,热老化作用使BIIR交联度增加,气体阻隔性能提高;疲劳作用对其气体阻隔性能的影响也较小;但温度和疲劳共同作用下,BIIR在较高温度下形成的交联网络又经屈挠疲劳的作用,更易发生裂解,并带动填料粒子的“移动”,导致了BIIR橡胶气体阻隔性能的大幅降低。

关键词：溴化丁基橡胶热老化屈挠疲劳气体阻隔性能

基于核型分析和CMA的产前诊断中胎儿染色体疾病的早期预测方法研究

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智慧健康 2024年第6期10卷 56-59,63页

作者：黄少云安徽省妇幼保健院安徽合肥230000

目的研究核型分析和染色体微阵列分析(chromosomal microarray analysis, CMA)在产科产前诊断中对胎儿染色体疾病的早期预测价值。方法回顾分析2021年12月—2022年12月于本院产科行产前检查,并接受羊水穿刺术的孕妇431例,对其核型及CM... 详细信息

目的研究核型分析和染色体微阵列分析(chromosomal microarray analysis, CMA)在产科产前诊断中对胎儿染色体疾病的早期预测价值。方法回顾分析2021年12月—2022年12月于本院产科行产前检查,并接受羊水穿刺术的孕妇431例,对其核型及CMA进行分析。结果纳入研究的431例孕妇均穿刺成功并完成细胞培养,成功率100%。术后对孕妇随访,有39例孕妇因电话自动拦截、拒绝、停机、号码错误而失访,1例孕妇术后见发烧,1例孕妇完成检查后当日见阴道出血,于本院住院后无碍,1例孕妇术后3日见红,不良事件发生率0.77%。本次研究中未见流产病例。431例检查结果中,有38例提示染色体异常,检出率8.82%;其中数目异常9例,占23.68%;结构异常29例,占76.32%。进一步分析可知,异常主要集中于12、13、14、15、18、21号染色体及X、Y染色体上。异常类型包括标准型(21-三体型)、易位型、微结构异常型等。夫妻一方染色体异常共4例,检测出胎儿染色体异常1例,异常检出率25%。本次研究中年龄≥35岁的孕妇72人,检出胎儿染色体异常1例,检出率1.39%。结论核型分析联合CMA技术能提升异常检出率,明确致病片段来源,为产前诊断及遗传咨询提供科学可靠的依据,安全可靠。

关键词：核型分析染色体微阵列分析染色体疾病产前诊断

A Multi-objective Chance-constrained Information-gap Decision Model for Active Management to Accommodate Multiple Uncertainties in Distribution Networks

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Journal of Modern Power Systems and Clean Energy 2023年第1期11卷 17-34页

作者： Shida Zhang shaoyun ge Hong Liu Junkai Li Chenghong Gu Chengshan Wang School of Electrical and Information Engineering Tianjin UniversityTianjin 300072China Department of Electrical and Electronic Engineering University of BathBath BA27AYU.K

The load demand and distributed generation(DG)integration capacity in distribution networks(DNs)increase constantly,and it means that the violation of security constraints may occur in the future.This can be further worsened by short-term power fluctuations.In this paper,a scheduling method based on a multi-objective chance-constrained information-gap decision(IGD)model is proposed to obtain the active management schemes for distribution system operators(DSOs)to address these problems.The maximum robust adaptability of multiple uncertainties,including the deviations of growth prediction and their relevant power fluctuations,can be obtained based on the limited budget of active management.The systematic solution of the proposed model is developed.The max term constraint in the IGD model is converted into a group of normal constraints corresponding to extreme points of the max term.Considering the stochastic characteristics and correlations of power fluctuations,the original model is equivalently reformulated by using the properties of multivariate Gaussian distribution.The effectiveness of the proposed model is verified by a modified IEEE 33-bus distribution network.The simulation result delineates a robust accommodation space to represent the adaptability of multiple uncertainties,which corresponds to an optional active management strategy set for future selection.

关键词： Active management distribution network multiple uncertainties information gap decision theory chance constraint