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微电网运行控制关键技术评价

电器与能效管理技术 2024年第5期 1-9页

作者：刘晓明胡丽娟赵凤展益西措姆王文烨吕国庆国家电网西藏电力有限公司西藏拉萨850000 国网上海能源互联网研究院有限公司上海200120 中国农业大学信息与电气工程学院北京100083

微电网是一种智能化的控制系统,其运行效果与管控技术密切相关。为了实现微电网的精细化管理,开展了微电网运行过程评价研究,建立了包含有功功率控制、电压/无功调节、孤岛安全技术和能量优化管理4个方面的微电网运行控制关键技术评价... 详细信息

微电网是一种智能化的控制系统,其运行效果与管控技术密切相关。为了实现微电网的精细化管理,开展了微电网运行过程评价研究,建立了包含有功功率控制、电压/无功调节、孤岛安全技术和能量优化管理4个方面的微电网运行控制关键技术评价指标体系;同时提出了基于改进变权评价方法的综合评价方法,解决了评价结果不能反映部分指标权重较小但指标值已严重偏离正常值的实际评价问题。最后,通过实际微电网运行评价算例,验证了提出的微电网运行过程评价指标体系和评价方法的有效性。

关键词：微电网运行控制关键技术指标体系变权重方法

The Variation of Plankton Community Structure in Artificial Reef Area and Adjacent Waters in Haizhou Bay

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Journal of Ocean University of China 2024年第1期23卷 264-276页

作者： GAO Shike SHI yixi LU Yanan ZHANG Shuo College of Marine Sciences Shanghai Ocean UniversityShanghai 201306China Joint Laboratory for Monitoring and Conservation of Aquatic Living Resources in the Yangtze Estuary Shanghai 200000China

Plankton are an important component of marine protected areas(MPAs),and its communities would require much smaller interpatch distances to ensure connection among *** to the survey from MPAs dominated by artificial reefs and adjacent waters(estuary area(EA),aquaculture area(AA),artificial reef area(ARA),natural area(NA)and comprehensive effect area(CEA))in Haizhou Bay in spring and autumn,we analyzed phyto-zooplankton composition,abundance and biomass,and correlation with hydrologic variables to gain information about the forces that structure the *** results showed that the dominant zooplankton were copepods(spring,98.9%;autumn,94.2%),while the phytoplankton were mainly composed of Bacillariophyta(spring,61.8%;autumn,95.6%).The RDA results showed that temperature,salinity and depth highly associated with the distribution and composition of plankton species among the habitats than other factors in spring;temperature,Chla and DO had the strongest influence in *** zooplankton in the ARA and AA ecosystems basically contained the same species as those in other habitats,and each habitat also exhibited a relatively unique combination of plankton *** structures of the EA zooplankton in spring and the EA phytoplankton in both seasons were much different than other habitats,which may have been caused by factors such as currents and *** concluded that there exists similarity of the plankton community between artificial reef area and adjacent waters,whereas the EAs may be relatively independent ***,these interaction between plankton community should be considered when designing MPA networks,and ocean circulations should be considered more than the environmental factors.

关键词： zooplankton phytoplankton seasonal variation environmental factor artificial reef

交流半波长输电系统过电压机理和属性及其控制

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电网技术 2023年第6期47卷 2452-2462页

作者：张媛媛韩彬秦晓辉益西措姆李苏宁郭祎伟王磊中国电力科学研究院有限公司北京市海淀区100192 国网西藏电力有限公司西藏自治区拉萨市850010 北京市信息技术应用研究所北京市海淀区100091 国网天津市电力公司天津市河北区300010

半波长输电系统存在常规电力系统中持续运行电压、暂时过电压及操作过电压等作用电压类型,但产生工况、机理、分类及特性有诸多不同。通过机理分析与EMTP仿真验证,得到区内发生接地故障工况是半波长输电系统过电压抑制的重点,存在接地... 详细信息

半波长输电系统存在常规电力系统中持续运行电压、暂时过电压及操作过电压等作用电压类型,但产生工况、机理、分类及特性有诸多不同。通过机理分析与EMTP仿真验证,得到区内发生接地故障工况是半波长输电系统过电压抑制的重点,存在接地故障过电压、谐振过电压及功率波动过电压3种类型。呈现暂时过电压特征的谐振过电压及功率波动过电压幅值高、持续时间长、全线覆盖面广,抑制难度较大,沿线加装金属氧化锌避雷器(metal zinc oxide arresters,MOA)是必然选择,但须对MOA耐受此类作用电压的限制要求重新界定。因此,提出适用于半波长系统的过电压控制要求及沿线MOA差异化配置方法。参照常规特高压工程,提出点对网型特高压半波长输电系统过电压控制标准,包括预测工况、过电压幅值和持续时间以及沿线设备耐受性能等要素;给出过电压抑制方案:沿线配置90组额定电压为876kV的MOA,并可取消特高压断路器合闸电阻。

关键词：半波长输电特高压过电压产生机理控制要求金属氧化锌避雷器配置方法

Rheology of continental lithosphere and seismic anisotropy

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Science China Earth Sciences 2024年第1期67卷 31-60页

作者： Shengsi SUN Yunpeng DONG yixi LI Yihai YANG Chao CHENG Bo HUI Bin ZHANG Rutao ZANG State Key Laboratory of Continental Dynamics Department of GeologyNorthwest UniversityXi’an 710069China Shaanxi Earthquake Agency Xi’an 710068China

Rheology of rocks controls the deformation of the Earth at various space-time scales,which is crucial to understand the tectonic evolution of continental *** of rock rheology are mainly conducted via high-pressure and hightemperature rheological experiments and multi-scale observations and measurements of naturally deformed *** present,a large amount of data from such kinds of studies have been *** paper first provides an up-to-date comprehensive review of the rheological mechanisms,fabric types and seismic properties of the main rock-forming minerals at different depths of continental lithosphere,including olivine,orthopyroxene,clinopyroxene,amphibole,plagioclase,quartz and ***,progress in high-pressure and high-temperature experiments and natural deformation observations is introduced,mainly regarding the rheological strength and behavior,seismic velocity and anisotropy of lithospheric mantle peridotite,eclogite,mafic granulite,amphibolite and felsic ***,by taking the Tibetan Plateau as an example,the application of rock rheology for quantitative interpretation of seismic anisotropy data is *** combination of mineral deformation fabrics and seismic anisotropy is expected to make an important breakthrough in understanding the rheological properties and structure of continental lithosphere.

关键词： Lithosphere Mineral fabric Rheology Seismic velocity Anisotropy

A graph neural network approach to the inverse design for thermal transparency with periodic interparticle system

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Chinese Physics B 2024年第8期33卷 295-303页

作者：刘斌王译浠 Department of Electronic Information and Artificial Intelligence LeShan Normal UniversityLeShan 614099China Department of Physics State Key Laboratory of Surface Physicsand Key Laboratory of Micro and Nano Photonic Structures(MOE)Fudan UniversityShanghai 200438China

Recent years have witnessed significant advances in utilizing machine learning-based techniques for thermal metamaterial-based structures and devices to attain favorable thermal transport *** the various thermal transport behaviors,achieving thermal transparency stands out as particularly desirable and *** earlier work demonstrated the use of a thermal metamaterial-based periodic interparticle system as the underlying structure for manipulating thermal transport behavior and achieving thermal *** this paper,we introduce an approach based on graph neural network to address the complex inverse design problem of determining the design parameters for a thermal metamaterial-based periodic interparticle system with the desired thermal transport *** work demonstrates that combining graph neural network modeling and inference is an effective approach for solving inverse design problems associated with attaining desirable thermal transport behaviors using thermal metamaterials.

关键词： thermal metamaterial thermal transparency inverse design machine learning graph neural net-work

基于信息共享的光伏清洁能源输出功率预测方法

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电网与清洁能源 2023年第12期39卷 153-158页

作者：徐潜益西措姆白玛央宗杜宁刚廖晓群国网西藏电力有限公司西藏拉萨850000 西安科技大学信息网络中心陕西西安710054

与传统能源不同,光伏发电-储电-用电的历史信息数量多、约束条件复杂度较高,且缺少必要的数据共享过程,导致光伏清洁能源输出功率预测的准确率较差。在光伏清洁能源输出功率预测方法中引入信息共享方法,利用信息集成模块集成生产管理系... 详细信息

与传统能源不同,光伏发电-储电-用电的历史信息数量多、约束条件复杂度较高,且缺少必要的数据共享过程,导致光伏清洁能源输出功率预测的准确率较差。在光伏清洁能源输出功率预测方法中引入信息共享方法,利用信息集成模块集成生产管理系统、电网规划系统、主管信息系统、调度系统、历史生产数据、市场交易等光伏清洁能源数据,设计一种信息共享方法,降低光伏清洁能源数据的差异化程度。通过PSOEM优化BP神经网络算法,预测光伏清洁能源输出功率,引入带扩展记忆的粒子群算法来改善算法陷入局部最优值的缺陷,提升光伏清洁能源信息预测精度以及收敛速度,构建光伏清洁能源输出功率预测模型。模型测试结果表明,该方法能够准确实现光伏发电信息、储电信息以及用电信息的实时共享,预测光伏电力系统输出功率的HM准确率达96.3%,RMSE准确率达93%。

关键词： PSOEM 约束条件光伏清洁能源发电-储电-用电信息共享模型信息集成模块决策支持模块

A bHLH transcription factor,CsSPT,regulates high-temperature resistance in cucumber

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Horticultural Plant Journal 2024年第2期10卷 503-514页

作者： Yonggui Liang Chenyu Yang Fangyan Ming Bingwei Yu Zhihua Cheng yixi Wang Zhengkun Qiu Xiaolan Zhang Bihao Cao Shuangshuang Yan Key Laboratory of Biology and Genetic Improvement of Horticultural Crops(South China) Ministry of Agriculture and Rural AffairsGuangdong Vegetable Engineering and Technology Research CenterCollege of HorticultureSouth China Agricultural UniversityGuangzhouGuangdong 510642China State Key Laboratories of Agrobiotechnology Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable CropsMOE Joint Laboratory for International Cooperation in Crop Molecular BreedingChina Agricultural UniversityBeijing 100193China

High-temperature stress threatens the growth and yield of crops. Basic helix-loop-helix(bHLH) transcription factors(TFs) have been shown to play important roles in regulating high-temperature resistance in plants. However, the bHLH TFs responsible for high-temperature tolerance in cucumbers have not been identified. We used transcriptome profiling to screen the high temperature-responsive candidate bHLH TFs in cucumber. Here, we found that the expression of 75 CsbHLH genes was altered under high-temperature stress. The expression of the CsSPT gene was induced by high temperatures in TT(Thermotolerant) cucumber plants. However, the Csspt mutant plants obtained by the CRISPR-Cas9 system showed severe thermosensitive symptoms, including wilted leaves with brown margins and reduced root density and cell *** Csspt mutant plants also exhibited elevated H_(2)O_(2) levels and down-regulated photosystem-related genes under normal ***, there were high relative electrolytic leakage(REC), malondialdehyde(MDA), glutathione(GSH), and superoxide radical(O_(2)^(·-)) levels in the Csspt mutant plants, with decreased Proline content after the high-temperature treatment. Transcriptome analysis showed that the photosystem and chloroplast activities in Csspt mutant plants were extremely disrupted by the high-temperature stress compared with wildtype(WT) plants. Moreover, the plant hormone signal transduction, as well as MAPK and calcium signaling pathways were activated in Csspt mutant plants under high-temperature stress. The HSF and HSP family genes shared the same upregulated expression patterns in Csspt and WT plants under high-temperature conditions. However, most bHLH, NAC, and bZIP family genes were significantly down-regulated by heat in Csspt mutant plants. Thus, these results demonstrated that CsSPT regulated the high-temperature response by recruiting photosynthesis components, signaling pathway molecules, and transcription factors. Our results pro

关键词： Cucumber bHLH CsSPT Photosynthesis High temperature

Harnessing cytokine-induced killer cells to accelerate diabetic wound healing:an approach to regulating post-traumatic inflammation

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Regenerative Biomaterials 2024年第2期3卷 88-99页

作者： yixi Yang Cheng Zhang Yuan Jiang Yijun He iawei Cai Lin Liang Zhaohuan Chen Sicheng Pan Chu Hua Keke Wu Le Wang Zhiyong Zhang Translational Research Centre of Regenerative Medicine and 3D Printing of Guangzhou Medical University Guangdong Province Engineering Research Center for Biomedical EngineeringState Key Laboratory of Respiratory DiseaseDepartment of Orthopaedic SurgeryMedical Technology and Related Equipment Research for Spinal Injury TreatmentCity Key LaboratoryThe Third Affliated Hospital of Guangzhou Medical UniversitySchool of Biomedical EngineeringGuangzhou MedicalUniversityGuangzhouGuangdong510150P.R.China Department of Osteoarthropathy and Sports Medicine Panyu Central HospitalGuangzhou 511400P.R.China

Impaired immunohomeostasis in diabetic wounds prolongs infiammation and cytokine dysfunction,thus,delaying or pre-venting wound-surface *** clinical studies have been conducted on cytokine-induced killer(CIK)cells recently,as they can be easily proliferated using a straightforward,inex-pensive ***,the function of CIK cells in regulat-ing inflammatory environments has been drawing attention for clinical *** the current investigation,we discovered the regenerative capacity of these cells in the chal-lenging environment of wounds that heal poorly due to *** demonstrated that the intravenous injection of CIK cells can re-establish a proregenerative inflammatory *** *** accelerateskin healing in diabetic *** results indicated that CIK cell treatment affects macrophage polarization and restores the function regenerative cells under hyperglycemic *** novel cellular therapy offers a promising intervention for clinical applic tions through specific inflammatory regulation functions.

关键词： macrophage diabetic wound post-traumatic inflammation cytokine-induced killer cells vascularization

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论伍尔夫对汪曾祺早期小说创作的影响

惠州学院学报 2024年第4期44卷 15-21页

作者：李益茜贵州民族大学文学院

汪曾祺早期小说创作深受伍尔夫影响。西南联大自由开放的学术环境为其接受伍尔夫影响提供了可能性，自身创作主张与伍尔夫小说理念的契合使汪曾祺具有学习现代主义的自觉性。汪曾祺借内心独白、自由联想和时空蒙太奇的意识流手法进行创... 详细信息

汪曾祺早期小说创作深受伍尔夫影响。西南联大自由开放的学术环境为其接受伍尔夫影响提供了可能性，自身创作主张与伍尔夫小说理念的契合使汪曾祺具有学习现代主义的自觉性。汪曾祺借内心独白、自由联想和时空蒙太奇的意识流手法进行创作，对中国文学的发展具有先驱意义。借鉴伍尔夫意识流小说创作的基础上，汪曾祺在文体形式上融入中国元素，在审美追求上提倡“和谐美”，创造出具有本土性的现代主义小说。

关键词：伍尔夫汪曾祺早期小说