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基于深度强化学习的电力物联网动态切片策略研究

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无线电工程 2024年第6期54卷 1380-1387页

作者：辛锐吴军英薛冰张鹏飞李艳军柴守亮王佳楠国网河北省电力有限公司信息通信分公司河北石家庄050021 西安电子科技大学广州研究院广东广州510555 国网河北省电力有限公司邯郸供电分公司河北邯郸056035 北京中电普华信息技术有限公司北京100085

软件定义电力物联网支持构建承载不同业务的网络切片(Network Slice,NS),通过部署NS为具有业务需求的物联网设备提供端到端服务。业务NS的部署涉及2个互相耦合的问题,即虚拟网络功能(Virtual Network Function,VNF)部署和业务传输路由... 详细信息

软件定义电力物联网支持构建承载不同业务的网络切片(Network Slice,NS),通过部署NS为具有业务需求的物联网设备提供端到端服务。业务NS的部署涉及2个互相耦合的问题,即虚拟网络功能(Virtual Network Function,VNF)部署和业务传输路由确定。在海量业务需求与动态网络场景中,NS部署方案需要根据网络状态,实现智能的动态灵活部署。针对上述问题,研究动态网络场景下的切片策略,基于深度强化学习算法求解VNF部署和业务传输路由确定这一复杂联合优化问题,实验证明所提策略能根据目前的网络状态灵活地改变部署方案,控制业务路由平均能量损耗、平均可靠性和平均剩余带宽占有率,提高了网络整体传输性能。

关键词：软件定义电力物联网切片虚拟网络功能路由深度强化学习

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Jianpi Qutan Fang(健脾祛痰方)induces anti-atherosclerosis and ameliorates endothelial cell injury in high-fat diet rats via an anti-inflammatory and inhibiting Janus kinase/signal transducer and activator of transcription signaling pathway

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Journal of Traditional Chinese Medicine 2023年第6期43卷 1168-1175页

作者： LIU Yue ZHANG Fan HAN Xiaomeng XU Ningyang ZHAO Yu wang Qige wang jianan LU Bingjiu Zhang Yan Studio of Prestigious Chinese physician Zhang Yan Affiliated hospitalLiaoning University of Traditional Chinese MedicineShenyang 110000China Liaoning University of Traditional Chinese Medicine Shenyang 110000China Department of Infectious Disease Affiliated hospitalLiaoning University of Traditional Chinese MedicineShenyang 110000China Studio of Prestigious Chinese physician Zhang Yan Department of Cardiopulmonary RehabilitationAffiliated hospitalLiaoning University of Traditional Chinese MedicineShenyang 110000China

OBJECTIVE:To investiage the possible mechanism underlying the effect of the Jianpi Qutan Fang(健脾祛痰方,JPQT)on Atherosclerosis(AS)which is the main pathological process of most cardiovascular diseases that affect millions of adults ***:In the present study,rats were fed with a high-fat-diet(HFD)with vitamin D3 for 16 weeks and were orally administered atorvastatin treatment and different doses of *** changes and ultrastructural changes in the aorta were evaluated through hematoxylin-eosin staining and transmission electron microscopy(TEM),*** of cytokine signaling 1(SOCS1)/Janus kinase 1(JAK1)/signal transducer and activator of transcription 1(STAT1)signaling pathways were detected through Western ***:JPQT treatment decreased the lipid levels of triglyceride,low-density lipoprotein,and cholesterol,the inflammatory cytokine levels of interleukin 1 beta(IL-1β),IL-6 and IL-8 in rat serum,but increased high-density lipoprotein and IL-10 serum *** treatment ameliorated pathological changes in the aorta of AS model ***,JPQT upregulated SOCS1 protein expression and down-regulated phosphorylated protein expression levels of p-JAK1 and ***:These results suggest that JPQT induces anti-atherosclerosis effects through anti-inflammatory and inhibiting JAK/STAT signaling pathways in HFD fed rats.

关键词： anti-inflammatory agents Janus kinases STAT transcription factors signal transduction diet high-fat antiatherosclerosis Jianpi Qutan Fang

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Interpolated Bumpless Transfer Control for Asynchronously Switched Linear Systems

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IEEE/CAA Journal of Automatica Sinica 2024年第7期11卷 1579-1590页

作者： Shengao Lu Tong Wu Lixian Zhang jianan Yang Ye Liang the School of Astronautics Harbin Institute of TechnologyHarbin 150080China the Department of Electrical and Computer Engineering National University of SingaporeSingapore 117583Singapore IEEE

This paper revisits the problem of bumpless transfer control(BTC) for discrete-time nondeterministic switched linear systems. The general case of asynchronous switching is considered for the first time in the field of BTC for switched systems. A new approach called interpolated bumpless transfer control(IBTC) is proposed, where the bumpless transfer controllers are formulated with the combination of the two adjacent modedependent controller gains, and are interpolated for finite steps once the switching is detected. In contrast with the existing approaches, IBTC does not necessarily run through the full interval of subsystems, as well as possesses the time-varying controller gains(with more flexibility and less conservatism) achieved from a control synthesis allowing for the stability and other performance of the whole switched system. Sufficient conditions ensuring stability and H_(∞) performance of the underlying system by IBTC are developed, and numerical examples verify the theoretical findings.

关键词： Asynchronous switching bumpless transfer H_∞control switched systems

Large-scale chiral spherulites with controllable circularly polarized luminescence in liquid crystal block copolymers film

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Aggregate

Aggregate 2024年第1期5卷 427-435页

作者： jianan Yuan Xuemin Lu Qinghua Lu School of Chemistry and Chemical Engineering Shanghai Jiao Tong UniversityShanghaiChina School of Chemical Science and Engineering Tongji UniversityShanghaiChina

Macroscopic chiral spherulites prepared by hierarchical self-assembly have attracted considerable attention due to their excellent property as chiroptical ***,preparing controllable chiral spherulites in bulk film remains a challenge due to the absent knowledge of the evolution mechanism from the molecule to macroscopic crystal during chiral *** this contribution,chiral macroscopic spherulites were constructed with controllable circularly polarized luminescence(CPL)using enantiomeric tartaric acid and rhodamine B co-assembled with liquid crystal block copolymers,poly(ethylene oxide)-b-poly(methyl methacrylate)bearing azobenzene group side *** was found that the chiral liquid crystal field induced by exogenous chiral molecules was closely related to the formation of macroscopic chiral ***,the transformation of azobenzene cis-trans isomerization under photo-thermal endows films with adjustable *** facile strategy provides a platform to design large-scale chiral structures for chiroptical switching,encryption,and memory storage materials.

关键词： block copolymer circularly polarized luminescence macroscopic chirality self-assembly

Straw return increases crop production by improving soil organic carbon sequestration and soil aggregation in a long-term wheat-cotton cropping system

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Journal of Integrative Agriculture 2024年第2期23卷 669-679页

作者： Changqin Yang Xiaojing wang jianan Li Guowei Zhang Hongmei Shu Wei Hu Huanyong Han Ruixian Liu Zichun Guo Institute of Industrial Crops Jiangsu Academy of Agricultural Sciences/Key Laboratory of Cotton and RapeseedMinistry of Agriculture and Rural AffairsNanjing 210014China College of Life Sciences and Food Engineering Huaiyin Institute of TechnologyHuai’an 223003China College of Agriculture Nanjing Agricultural UniversityNanjing 210095China Cotton Research Institute Xinjiang Academy of Agricultural and Reclamation ScienceShihezi 832000China Institute of Soil Science Chinese Academy of Sciences/State Key Laboratory of Soil and Sustainable AgricultureNanjing 210008China

Straw return is a promising strategy for managing soil organic carbon(SOC)and improving yield ***,the optimal straw return strategy for sustainable crop production in the wheat(Triticum aestivum L.)-cotton(Gossypium hirsutum L.)cropping system remains *** objective of this study was to quantify the long-term(10 years)impact of carbon(C)input on SOC sequestration,soil aggregation and crop yields in a wheat-cotton cropping system in the Yangtze River Valley,*** treatments were arranged with a single-factor randomized design as follows:no straw return(Control),return of wheat straw only(Wt),return of cotton straw only(Ct),return of 50%wheat and 50%cotton straw(Wh-Ch)and return of 100%wheat and 100%cotton straw(Wt-Ct).In comparison to the Control,the SOC content increased by 8.4 to 20.2%under straw return.A significant linear positive correlation between SOC sequestration and C input(1.42-7.19 Mg ha^(−1)yr^(−1))(P2 and 1-2 mm at the 0-20 cm soil depth were also significantly elevated under straw return,with the greatest increase of the aggregate stability in the Wt-Ct treatment(28.1%).The average wheat yields increased by 12.4-36.0%and cotton yields increased by 29.4-73.7%,and significantly linear positive correlations were also detected between C input and the yields of wheat and *** average sustainable yield index(SYI)reached a maximum value of 0.69 when the C input was 7.08 Mg ha^(−1)yr^(−1),which was close to the maximum value(SYI of 0.69,C input of 7.19 Mg ha^(−1)yr^(-1))in the Wt-Ct ***,the return of both wheat and cotton straw was the best strategy for improving SOC sequestration,soil aggregation,yields and their sustainability in the wheat-cotton rotation system.

关键词： straw return crop yields SOC soil aggregates wheat-cotton cropping system

Photoperiod Mediates the Effects of Temperature and Light Intensity on the Proliferation of Ulva prolifera

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Journal of Ocean University of China 2024年第1期23卷 255-263页

作者： JIANG jianan YU Yanyan CHEN Yili LI Yahe XU Nianjun Key Laboratory of Marine Biotechnology of Zhejiang Province School of Marine SciencesNingbo UniversityNingbo 315211China

In order to study the complex effects of photoperiod,temperature,and light intensity on the spore maturation and release number of Ulva prolifera,we cultured thalli segment(2–3 mm)under three different photoperiods(L:D=12:12,14:10 and 10:14),temperature(15℃(LT),25℃(MT)and 30℃(HT))and light intensity(100,200 and 400μmol m^(−2)s^(−1),noted as LL,ML and HL,respectively)*** the maturation time,spore release number and chlorophyll fluorescence were *** results suggested that:1)The spore maturation time was accelerated by higher temperature or higher light intensity from 62 h to 36 h,and changes in day length accelerated the spore maturation to a certain extent as compared with 12:12 light/dark cycle;2)Higher light intensity significantly decreased the chlorophyll fluorescence(Fv′/Fm′,NPQ,rETRmax andα)of the mature reproductive segment under 30℃with 12:12 light/dark *** when in the other photoperiods(10:14 and 14:10 conditions),the inhibitory effects of high light intensity were alleviated significantly;3)The optimum condition for the spore maturation and release was 12:12 light/dark cycle,25℃,400μmol m^(−2)s^(−1),with both shorter and longer photoperiod reducing the spore release number;4)Higher light intensity significantly increased the spore release number under 25℃,but these effects were alleviated by 30℃*** study is the first attempt to elucidate the coincidence effects of photoperiod,temperature and light intensity on the reproduction of Ulva,which would help to reveal the mechanism of the rapid proliferation of green tide.

关键词： light intensity maturation photoperiod reproduction temperature Ulva prolifera

Highly aligned lithiophilic electrospun nanofiber membrane for the multiscale suppression of Li dendrite growth

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eScience 2022年第6期2卷 655-665页

作者： jianan wang Qianyue Ma Shiyi Sun Kai Yang Qiong Cai Emilia Olsson Xin Chen Ze wang Amr MAbdelkader Yinshi Li Wei Yan Shujiang Ding Kai Xi Department of Environmental Science and Engineering Xi'an Key Laboratory of Solid Waste Recycling and Resource RecoverySchool of Energy and Power EngineeringXi'an Jiaotong UniversityXi'an 710049China Department of Applied Chemistry School of ChemistryUniversity Engineering Research Center of Energy Storage Materials and Chemistry of Shaanxi ProvinceState Key Laboratory for Electrical Insulation and Power EquipmentXi'an Jiaotong UniversityXi'an 710049China Department of Chemical and Process Engineering Faculty of Engineering and Physical SciencesAdvanced Technology InstituteUniversity of SurreyGuildford GU27XHSurreyEnglandUK Key Laboratory of Thermo-Fluid Science and Engineering of Ministry of Education School of Energy and Power EngineeringXi'an Jiaotong UniversityXi'anShaanxi710049China Advanced Research Center for Nanolithography Science Park 1061098 XGAmsterdamthe Netherlands Institute of Physics and Institute for Theoretical Physics University of AmsterdamPostbus 944851090 GLAmsterdamthe Netherlands Faculty of Science and Technology Bournemouth UniversityTalbot CampusFern BarrowPooleEnglandBH125BBUK

Using inorganic fibrous membranes as protective layers has yielded success in suppressing dendrite ***,conventional fibrous membranes usually have large voids and low affinity for Li,promoting inhomogeneous charge distribution and allowing some dendrites to ***,we introduce a highly aligned TiO_(2)/SiO_(2)(A-TS)electrospun nanofiber membrane as a protective layer for the Li metal *** A-TS membrane is fabricated by a custom-made electrospinning system with an automatic fiber alignment collector that allows control of the fibers’*** the scale of the individual fibers,their high binding energies with Li can attract more“dead”Li by reacting with the SiO_(2) component of the composite,avoiding uncontrollable deposition on the metal *** the membrane scale,these highly ordered structures achieve homogeneous contact and charge distribution on the Li metal surface,leaving no vulnerable areas to nucleate dendrite ***,the excellent mechanical and thermal stability properties of the A-TS membrane prevent any potential puncturing by dendrites or thermal runaway in a ***,an A-TS@Li anode exhibits stable cycling performance when used in both Li-S and Li-NCM811 batteries,highlighting significant reference values for the future design and development of high-energy-density metal-based battery systems.

关键词： Aligned structure Protective layerLi dendrite Lithium sulfur battery Li metal battery

Conducting Polymers Meet Lithium-Sulfur Batteries:Progress,Challenges,and Perspectives

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On-chip ultra-high rejection and narrow bandwidth filter based on coherency-broken cascaded cladding-modulated gratings

能源与环境材料（英文） 2023年第5期6卷 159-182页

作者： Xin Chen Chengcheng Zhao Kai Yang Shiyi Sun Jinxin Bi Ningrui Zhu Qiong Cai jianan wang Wei Yan Department of Environmental Science and Engineering State Key Laboratory of Multiphase Flow in Power EngineeringXi'an Jiaotong UniversityXi'an 710049China Xi'an Key Laboratory of Solid Waste Recycling and Resource Recovery Department of Environmental EngineeringXi'an Jiaotong UniversityXi'an 710049China Advanced Technology Institute University of SurreyGuildfordSurrey GU27XHUK College of Arts College of Landscape Architecture Fujian Agriculture and Forestry UniversityFuzhou 350108China Department of Chemical & Process Engineering Faculty of Engineering and Physical Sciences University of SurreyGuildford GU2 7XHUK

Lithium-sulfur(Li-S)batteries have attracted increased interest because of the high theoretical energy density,low cost,and environmental *** polymers(CPs),as one of the most promising materials used in Li-S batteries,can not only facilitate electron transfer and buffer the large volumetric change of sulfur benefiting from their porous structure and excellent flexibility,but also enable stronger physical/chemical adsorption capacity toward polysulfides(LiPSs)when doped with abundant heteroatoms to promote the sulfur redox kinetics and achieve the high sulfur *** review firstly introduces the properties of various CPs including structural CPs(polypyrrole(PPy),polyaniline(PANi),polyethylene dioxothiophene[PEDOT])and compound CPs(polyethylene oxide(PEO),polyvinyl alcohol(PVA)and poly(acrylic acid)[PAA]),and their application potential in Li-S ***,the research progress of various CPs in different components(cathode,separator,and interlayer)of Li-S batteries is systematically ***,the application perspective of the CPs in Li-S batteries as a potential guidance is comprehensively discussed.

关键词： conducting polymers Li–S batteries modified materials polysulfides

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Photonics Research 2024年第5期12卷 979-985页

作者： JINZHAO wang TING LI YANG FENG JIEWEN LI WANXIN LI LUWEI DING YONG YAO jianan DUAN WEI LIU FENG HE YI ZOU XIAOCHUAN XU Guangdong Provincial Key Laboratory of Integrated Photonic-Electronic Chip Guangdong Provincial Key Laboratory of Aerospace Communication and Networking TechnologyHarbin Institute of TechnologyShenzhenShenzhen 518055China School of Information Science and Technology ShanghaiTech UniversityShanghai 201210China

Bragg filters are of essential importance for chip-scale photonic ***,the implementation of filters with sub-nanometer bandwidth and rejection beyond 70 dB is hindered by the high index contrast of the siliconon-insulator platform,which makes filters prone to fabrication *** this paper,we propose to combine coherency-broken cascading architecture and cladding modulation to circumvent the intrinsic *** cascading architecture effectively prevents the accumulation of phase errors,while the cladding modulation offers additional design freedom to reduce the coupling coefficient.A bimodal Bragg filter with a testingequipment-limited rejection level of 74 dB and a 40 dB bandwidth of 0.44 nm is experimentally *** minimum feature size is 90 nm,which significantly relieves the fabrication constraints.

关键词： filter cladding narrow