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考虑绿证-碳交易的多虚拟电厂混合博弈优化调度

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智慧电力 2024年第3期52卷 1-7,16页

作者：徐慧慧田云飞赵宇洋柴宜方茜梁宁国网甘肃省电力公司经济技术研究院甘肃兰州730050 昆明理工大学电力工程学院云南昆明650500

为分析多个虚拟电厂间协同管理经济效益及低碳效益问题,提出了一种考虑绿证-碳交易的多虚拟电厂混合博弈优化调度方法。首先,建立混合博弈优化框架,分析电网运营商和虚拟电厂联盟间博弈关系。然后,构建以电网运营商为领导者、虚拟电厂... 详细信息

为分析多个虚拟电厂间协同管理经济效益及低碳效益问题,提出了一种考虑绿证-碳交易的多虚拟电厂混合博弈优化调度方法。首先,建立混合博弈优化框架,分析电网运营商和虚拟电厂联盟间博弈关系。然后,构建以电网运营商为领导者、虚拟电厂为跟随者的混合博弈优化模型,并基于纳什谈判理论,将虚拟电厂成本最小化等效为联盟效益最大化和合作收益分配2个子问题。最后,将二分法和交替方向乘子法相结合求解混合博弈模型。算例分析表明所提模型能够降低虚拟电厂联盟的总成本及碳排放量,协调联盟间的运行,提升联盟经济性及低碳性,实现了联盟成员合作收益公平分配。

关键词：混合博弈纳什谈判点对点交易虚拟电厂优化调度

Recent advances in emerging techniques for non-destructive detection of seed viability: A review

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Artificial Intelligence in Agriculture 2019年第1期1卷 35-47页

作者： Yu Xia yunfei xu Jiangbo Li Chi Zhang Shuxiang Fan Beijing Research Center of Intelligent Equipment for Agriculture Beijing 100097China National Research Center of Intelligent Equipment for Agriculture Beijing 100097China Key Laboratory of Agri-informatics Ministry of AgricultureBeijing 100097China Beijing Key Laboratory of Intelligent Equipment Technology for Agriculture Beijing 100097China College of Mechanical and Electronic Engineering Northwest A&F UniversityYanglingShaanxi 712100China

Over the past decades,imaging and spectroscopy techniques have been developed rapidly with widespread applications in non-destructive agro-food quality determination.Seeds are one of themost fundamental elements of agriculture and forestry.Seed viability is of great significance in seed quality characteristics reflecting potential seed germination,and there is a great need for a quick and effective method to determine the germination condition and viability of seeds prior to cultivate,sale and plant.Some researches based on spectra and/or image processing and analysis have been explored in terms of the external and internal quality of a variety of seeds.Many attempts have been made in image segmentation and spectra correction methods to predict seed quality using various traditional and novel methods.This review focuses on the comparative introduction,development and applications of emerging techniques in the analysis of seed viability,in particular,near infrared spectroscopy,hyperspectral and multispectral imaging,Raman spectroscopy,infrared thermography,and soft X-ray imaging methods.The basic theories,principle components,relative chemometric processing,analytical methods and prediction accuracies are reported and compared.Additionally,on the foundation of the observed applications,the technical challenges and future outlook for these emerging techniques are also discussed.

关键词： Seed viability NIR Hyperspectral imaging Raman spectroscopy Infrared thermography Soft X-ray imaging

七氟烷对肺动脉高压大鼠右心室重构时心肌细胞Ca^(2+)转运蛋白表达的影响

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中华麻醉学杂志 2024年第3期44卷 313-317页

作者：翟文倩边燕飞宋悦孜李云飞许红郭志刚韩建阁天津大学胸科医院麻醉科天津300222 天津市心血管急危重症重点实验室天津300222 包钢集团第三职工医院麻醉科包头014017 天津大学胸科医院心血管外科天津300222

目的评价七氟烷对肺动脉高压大鼠右心室重构时心肌细胞Ca^(2+)转运蛋白表达的影响。方法清洁级健康成年雄性SD大鼠24只,8~10周龄,体质量200~250 g,采用随机数字表法分为4组(n=6):对照组(CM组)、七氟烷组(CS组)、野百合碱组(M组)和七氟烷... 详细信息

目的评价七氟烷对肺动脉高压大鼠右心室重构时心肌细胞Ca^(2+)转运蛋白表达的影响。方法清洁级健康成年雄性SD大鼠24只,8~10周龄,体质量200~250 g,采用随机数字表法分为4组(n=6):对照组(CM组)、七氟烷组(CS组)、野百合碱组(M组)和七氟烷+野百合碱组(S组)。M组和S组大鼠腹腔注射野百合碱60 mg/kg,CM组大鼠腹腔注射野百合碱溶解剂。注射野百合碱后第1天时S组和CS组大鼠吸入2.5%七氟烷1 h,每周2次,每次间隔3 d。野百合碱注射后6周应用小动物经胸超声心动图法测定肺动脉加速时间和肺动脉射血时间。在3%七氟烷麻醉下暴露小鼠胸腔,灌注心脏,留取肺动脉分支血管和右心室心肌组织。HE染色观察肺小动脉管壁厚度和右心室心肌细胞横截面积,Western blot法检测右心室心肌细胞Ca^(2+)转运蛋白的表达。结果与CM组相比,M组大鼠肺动脉加速时间和肺动脉射血时间比值减小,右心室心肌细胞横截面积增大,肺小动脉管壁厚度增加,1型钠钙交换体和三磷酸肌醇受体表达上调,L-型电压依赖钙离子通道α1C亚基、兰尼碱受体、肌浆网钙泵2α和亲联蛋白-2表达下调(P<0.01);与M组相比,S组大鼠肺动脉加速时间和肺动脉射血时间比值升高,右心室心肌细胞横截面积减小,肺小动脉管壁厚度减少,1型钠钙交换体和三磷酸肌醇受体表达下调,L-型电压依赖钙离子通道α1C亚基、兰尼碱受体、肌浆网钙泵2α和亲联蛋白-2表达上调(P<0.01)。结论七氟烷改善肺动脉高压大鼠右心室重构的机制与调节心肌细胞Ca^(2+)转运蛋白表达有关。

关键词：七氟醚肺动脉高压心室重构阳离子转运蛋白质类

Recent advances in bacterial therapeutics based on sense and response

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Acta Pharmaceutica Sinica B 2023年第3期13卷 1014-1027页

作者： Zhuo Feng Yuchen Wang Haiheng xu yunfei Guo Wen Xia Chenxuan Zhao Xiaozhi Zhao Jinhui Wu State Key Laboratory of Pharmaceutical Biotechnology Chemistry and Biomedicine Innovation CenterMedical School of Nanjing UniversityNanjing 210093China Jiangsu Key Laboratory for Nano Technology Nanjing UniversityNanjing 210093China Department of Andrology Drum Tower HospitalMedical School of Nanjing UniversityNanjing 210093China

Intelligent drug delivery is a promising strategy for cancer therapies.In recent years,with the rapid development of synthetic biology,some properties of bacteria,such as gene operability,excellent tumor colonization ability,and host-independent structure,make them ideal intelligent drug carriers and have attracted extensive attention.By implanting condition-responsive elements or gene circuits into bacteria,they can synthesize or release drugs by sensing stimuli.Therefore,compared with traditional drug delivery,the usage of bacteria for drug loading has better targeting ability and controllability,and can cope with the complex delivery environment of the body to achieve the intelligent delivery of drugs.This review mainly introduces the development of bacterial-based drug delivery carriers,including mechanisms of bacterial targeting to tumor colonization,gene deletions or mutations,environment-responsive elements,and gene circuits.Meanwhile,we summarize the challenges and prospects faced by bacteria in clinical research,and hope to provide ideas for clinical translation.

关键词： Cancer therapy Bacterial drug delivery system Synthetic biology Responsive elements Gene circuits Intelligential delivery

Void fraction for random loose packing of the cylindrical particles considering filling rate,material and shape

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Particuology 2022年第4期20卷 35-46页

作者： Chengquan Zhang Jun Gao Yukun xu yunfei Xia Xiaobin Wei Xing Su Lingjie Zeng School of Mechanical Engineering Tongji UniversityShanghaiChina

Particle packing is widely applied in organic pollutant adsorption,catalytic reaction.biomass combustion,nuclear cooling,and other scenarios.Due to the complexity of the shape,the studies on the void fraction of the cylindrical particles are not as thorough as the spherical particles.This study investigated the influence of the flling rate,material properties and sphericity on the void fraction of cylinders through experiments and simulation.DEM(discrete element method)was validated by the internal structures of the packing obtained by CT(computed tomography).Based on the logarithmic correlation between the void fraction and flling rate,an ingenious framework for predicting the void fraction of cylindrical particles was presented with two intermediate coefficients.By correlating the coefficients with the material property and sphericity,a novel void-fraction prediction model was established with R-squared of 0.996.The mechanism of void fraction under random loose packing for cylinders was eventually found in this study.

关键词： Void fraction Random loose packing Cylindrical particles Prediction model DEM

Optimal dispatch approach for rural multi-energy supply systems considering virtual energy storage

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Global Energy Interconnection 2023年第6期6卷 675-688页

作者： Yanze xu yunfei Mu Haijie Qi Hairun Li Peng Yu Shumin Sun Key Laboratory of Smart Grid of Ministry of Education Tianjin UniversityTianjin 300072P.R.China Key Laboratory of Smart Energy&Information Technology of Tianjin Municipality Tianjin UniversityTianjin 300072P.R.China State Key Laboratory of Advanced Power Transmission Technology State Grid Smart Grid Research Institute Co.Ltd.Beijing 102200P.R.China State Grid Shandong Electric Power Research Institute Jinan 250002P.R.China

In response to the underutilization of energy and insufficient flexible operation capability of rural energy supply systems in China,this study proposes an optimal dispatch approach for a rural multi-energy supply system(RMESS)considering virtual energy storage(VES).First,to enable the flexible utilization of rural biomass resources and the thermal inertia of residential building envelopes,this study constructed VES-I and VES-II models that describe electrical-thermal and electrical-gas coupling from an electrical viewpoint.Subsequently,an RMESS model encompassing these two types of VES was formulated.This model delineates the intricate interplay of multi-energy components within the RMESS framework and facilitates the precise assessment of the adjustable potential for optimizing RMESS operations.Based on the above models,a day-ahead optimal dispatch model for an RMESS considering a VES is proposed to achieve optimal economic performance while ensuring efficient energy allocation.Comparative simulations validated the effectiveness of the VES modeling and the day-ahead optimal dispatch approach for the RMESS.

关键词： Virtual energy storage Rural multi-energy supply system Multi-energy coupling Optimal dispatch

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核梭杆菌和胰腺癌的关系及临床意义

中华普外科手术学杂志（电子版） 2024年第4期18卷 448-451页

作者：朱江张进孔云飞李军宋旭江苏大学附属医院肝胆外科江苏镇江212002

核梭杆菌常常定植在人体的自然腔道中,尤其富集在口腔,可以与宿主产生共生关系。随着近些年对核梭杆菌的深入研究,发现核梭杆菌和多种疾病相关。最近的研究发现其感染和胰腺癌的发生、发展息息相关。研究表明,核梭杆菌在胰腺肿瘤组织中... 详细信息

核梭杆菌常常定植在人体的自然腔道中,尤其富集在口腔,可以与宿主产生共生关系。随着近些年对核梭杆菌的深入研究,发现核梭杆菌和多种疾病相关。最近的研究发现其感染和胰腺癌的发生、发展息息相关。研究表明,核梭杆菌在胰腺肿瘤组织中丰度更高,并且核梭杆菌和胰腺癌患者预后差息息相关,同时核梭杆菌能够通过多种机制促进胰腺癌的发生发展。本文对核梭杆菌和胰腺癌的关系及其对胰腺癌的发生发展机制进行综述,能够为我国在胰腺癌诊断或治疗上提供一定的参考价值。

关键词：胰腺肿瘤核梭杆菌致病机制

Carbonized wood with ordered channels decorated by NiCo_(2)O_(4) for lightweight and high-performance microwave absorber

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Journal of Advanced Ceramics 2022年第1期11卷 105-119页

作者： Guangyu QIN Xiaoxiao HUANG xu YAN yunfei HE Yuhao LIU Long XIA Bo ZHONG School of Materials Science and Engineering Harbin Institute of TechnologyHarbin 150001China Beijing Institute of Radio Measurement Beijing 100854China School of Materials Science and Engineering Harbin Institute of Technology at WeihaiWeihai 264009China

Wood-derived carbon has a 3D porous framework composed of through channels along the growth direction,which is a suitable matrix for preparing electromagnetic wave(EMW)absorbing materials with low cost,light weight,and environmental friendliness.Herein,the carbonized wood decorated by short cone-like NiCo_(2)O_(4)(NiCo_(2)O_(4)@CW)with highly ordered straight-channel architecture was successfully manufactured through a facile calcination procedure.The horizontal arrangement of the through channels of NiCo_(2)O_(4)@CW(H-NiCo_(2)O_(4)@CW)exhibits a strong reflection loss value of-64.0 dB at 10.72 GHz with a thickness of 3.62 mm and a low filling ratio of 26 wt%(with the density of 0.98 g-cnf3),and the effective absorption bandwidth(EAB)is 8.08 GHz(9.92-18.0 GHz)at the thickness of 3.2 mm.The excellent microwave absorption(MA)property was ascribed to the ordered-channel structure with abundant interfaces and defects from NiCo_(2)O_(4)@CW,which could promote the interfacial polarization and dipole polarization.What is more,this advantageous structure increased the multiple reflections and scattering.Finite element analysis(FEA)simulation is carried out to detect the interaction between the prepared material and EMW when the ordered channels are arranged in different directions.This research provides a low-cost,sustainable,and environmentally friendly strategy for using carbonized wood to fabricate microwave absorbers with strong attenuation capabilities and light weight.

关键词： microwave absorption(MA) wood-derived carbon ordered-channel architecture light weight finite element analysis(FEA)

湘东北连云山上石地区伟晶岩型稀有金属矿床的发现及意义

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地质科学 2024年第4期59卷 961-970页

作者：文志林黄明许国锋张云飞黄宝亮李荫中刘磊湖南省地质灾害调查监测所中南大学有色金属成矿预测与地质环境监测教育部重点实验室中南大学地球科学与信息物理学院

湘东北地区位于钦杭成矿带中部北西缘，历来是中国重要的金、铜、钴、铅、锌多金属矿产区。在进行1∶10 000地质填图过程中，在上石地区发现了大量锂辉石稀有金属矿脉，单样Li2O含量达到了1.88%。其中包括：新发现伟晶岩脉25条，脉宽一... 详细信息

湘东北地区位于钦杭成矿带中部北西缘，历来是中国重要的金、铜、钴、铅、锌多金属矿产区。在进行1∶10 000地质填图过程中，在上石地区发现了大量锂辉石稀有金属矿脉，单样Li2O含量达到了1.88%。其中包括：新发现伟晶岩脉25条，脉宽一米至数十米，延伸方向主要为北西西及近东西向，延伸数米至数百米；确定伟晶岩矿化点20余处，其中普遍发育锂辉石、铌钽铁矿、绿柱石等稀有金属矿物。伟晶岩脉与围岩存在明显的渐变分带，可细分为混合岩化片岩带（Ⅰ带）、二云母花岗岩带（Ⅱ带）、电气石伟晶岩带（Ⅲ带）和块状钠长石锂辉石带（Ⅳ带），各结构带之间分带明显。锂辉石多产于钠长石—锂辉石伟晶岩带中，伴生有大量巨晶电气石、白云母等，显示出良好的锂成矿潜力。同时大量伴生铌钽铁矿、绿柱石等稀有金属矿物，部分达到锂矿共伴生品位。矿床主要赋矿伟晶岩脉为近东西走向，长度超过1 km，宽数米至数十米，厚度超过百米，Li2O平均品位为1.42%，初步预测储量约为2.56×10～4t，可达中型规模。该伟晶型锂稀有金属矿床的发现，彻底改变了湘东北地区以Be-Nb-Ta为主的稀有金属分布格局，暗示着区内稀有金属成矿的巨大潜力，对新一轮的找矿勘查具有启示意义。

关键词：稀有金属矿床伟晶岩分带上石锂矿床连云山地区湘东北