检索结果-南通市图书馆

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

在线全文

学校读者我要写书评

暂无评论

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

Crystallization Modulation and Holistic Passivation Enables Efficient Two‑Terminal Perovskite/CuIn(Ga)Se_(2)Tandem Solar Cells

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Nano-Micro Letters 2025年第1期17卷 205-215页

作者： Cong Geng Kuanxiang Zhang Changhua Wang Chung Hsien Wu Jiwen Jiang fei Long Liyuan Han Qifeng Han yi‑Bing Cheng Yong Peng State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070People’s Republic of China Triumph Photovoltaic Materials Co. Ltd.No.1001 Yannan AvenueHigh‑Tech Development DistrictBengbuAnhui 233000People’s Republic of China College of Materials Science and Engineering Guilin University of TechnologyGuilin 541004People’s Republic of China State Key Laboratory of Metal Matrix Composites Shanghai Jiao Tong UniversityShanghai 200240People’s Republic of China

Two-terminal(2-T)perovskite(PVK)/CuIn(Ga)Se_(2)(CIGS)tandem solar cells(TSCs)have been considered as an ideal tandem cell because of their best bandgap matching regarding to Shockley–Queisser(S–Q)***,the nature of the irregular rough morphology of commercial CIGS prevents people from improving tandem device *** this paper,D-homoserine lactone hydrochloride is proven to improve coverage of PVK materials on irregular rough CIGS surfaces and also passivate bulk defects by modulating the growth of PVK *** addition,the minority carriers near the PVK/C60 interface and the incompletely passivated trap states caused interface recombination.A surface reconstruction with 2-thiopheneethylammonium iodide and N,N-dimethylformamide assisted passivates the defect sites located at the surface and grain ***,LiF is used to create this field effect,repelling hole carriers away from the PVK and C60 interface and thus reducing *** a result,a 2-T PVK/CIGS tandem yielded a power conversion efficiency of 24.6%(0.16 cm^(2)),one of the highest results for 2-T PVK/CIGS TSCs to our *** validation underscores the potential of our methodology in achieving superior performance in PVK/CIGS tandem solar cells.

关键词： PVK/CIGS TSCs Irregular rough surfaces Modulating the growth PVK/C60 interface recombination

Positive effect of Mo on mechanical properties of a Ni-42W-10Co-x Mo medium heavy alloy

在线全文

学校读者我要写书评

暂无评论

China Foundry 2025年

作者： Guo-xin Cao Jian-xin Dong Yong-sheng He He Jiang Fang Hao Zhi-hua nie Teng-fei Ma Bao-quan Fu School of Materials Science and Engineering University of Science and Technology Beijing Xi'an Superalloy Technology Co. Ltd. School of Materials Science and Engineering Beijing Institute of Technology Key Laboratory of Air-driven Equipment Technology of Zhejiang Province Quzhou University

In this study,a novel Ni-W-Co-Mo medium heavy alloy (MHA) was designed to improve its mechanical strength via Mo *** the Ni-42W-10Co-xM o alloy series,where x represents the weight percent of Mo and varies between 0,1,2,5,and 10,the microstructure transitions from a dendritic structure to a hypoeutectic structure as the Mo content increases from 0 to 5wt.%.Moreover,as the Mo content increases from 0to 10wt.%,the distribution of theμ-phase shifts from being individually dispersed to forming aggregates,and its volume fraction rises from 0.5%to 7.9%.Notably,theμ-phase evolves into an eutectic microstructure,which helps in minimizing the segregation of *** change is accompanied by a substantial enhancement in mechanical properties;specifically,the compressive yield strength at room temperature increases from 350 MPa to 646 MPa,indicating a significant 85%***,the microhardness increases from 230 HV to 304 *** dynamics simulations further reveal that the strengthening mechanism of Ni-42W-10Co-xM o alloys is Mo-induced solid solution strengthening and precipitation strengthening.

关键词：

纽约大学库朗数学科学研究所交叉科研组织模式发展路径分析

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

黑龙江高教研究 2025年第1期43卷 72-79页

作者：于依琼聂映玉陈青上海交通大学上海200240 华东师范大学上海200062

有效组织交叉科学研究面临诸多挑战。纽约大学库朗数学科学研究所通过从平衡数学学科内部分支到构建跨学科知识体系、从研究单一问题到满足国家与社会需求、从促进合作交流到建立学科集群等措施,成功构建了组织交叉科学研究的发展路径... 详细信息

有效组织交叉科学研究面临诸多挑战。纽约大学库朗数学科学研究所通过从平衡数学学科内部分支到构建跨学科知识体系、从研究单一问题到满足国家与社会需求、从促进合作交流到建立学科集群等措施,成功构建了组织交叉科学研究的发展路径。其关键因素在于传承交叉科研核心价值观、孵化多元化交叉平台、实施自主灵活用人机制和精准定位目标人才培养模式等。研究发现,其交叉科研组织模式展现了与超学科理论核心原则高度一致的生长逻辑。借鉴超学科理论,提出交又科研核心价值观的树立传承、基础学科与优势学科多维融合、研究成果的社会应用与转化等策略建议,旨在为我国高校和科研机构在组织交叉科学研究时提供理论指导和实践参考。

关键词：交叉科学研究组织模式基础学科超学科纽约大学库朗数学科学研究所

Brightening room-temperature phosphorescence in solution

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Science China Chemistry 2023年第3期66卷 611-612页

作者： fei nie Dongpeng Yan Beijing Key Laboratory of Energy Conversion and Storage Materials Key Laboratory of RadiopharmaceuticalsMinistry of EducationCollege of ChemistryBeijing Normal UniversityBeijing 100875China

The strategies including noncovalent macrocycle-confined supramolecular assembly and construction of rigid hydrogen-bond network have been verified as effective routes to brighten aqueous-phase room temperature ***-based room-temperature phosphorescence(RTP)has attracted widespread attention in the fields of chemical sensors,optical anti-counterfeiting,information encoding and so on,due to unique characteristics of long excited-state lifetimes,large Stokes shifts and high signal-tonoise ratios[1,2].Currently,to obtain RTP with considerable efficiency and long lifetime,two brilliant strategies have been developed:one is the introduction of heavy atoms,which facilitates the spin-orbital coupling and intersystem crossing(ISC)from singlet to triplet states。

关键词： lifetime excited coupling

Scattering Analysis and Optimization of Spherical Acoustic Cloak with Unideal Pentamode Material

在线全文

学校读者我要写书评

暂无评论

Acta Mechanica Solida Sinica 2020年第3期33卷 347-360页

作者： Xin nie yi Chen Xiaoning Liu Key Laboratory of Dynamics and Control of Flight Vehicle Ministry of EducationSchool of Aerospace EngineeringBeijing Institute of TechnologyBeijing 100081China

The acoustic scattering is theoretically studied in this paper for three-dimensional spherical cloak composed of unideal pentamode material,for which small shear rigidity is always inevitable for a real designed microstructure.A theoretical formulation is developed to efficiently evaluate the cloaking *** generic scattering feature of the cloak and the efTects of material imperfectness and inner cloak boundary constraints are systematically *** preferable constraint type and the critical imperfectness parameter of the material are identified for possible broadband *** addition,a very practical lining shell scheme is proposed to tune the constraint strength on the inner *** combining the theoretical model with optimization algorithm,it is further proved that the cloak can be reduced by several piecewiseuniform layers and optimized to achieve excellent invisibility in targeted frequency *** study will provide valuable guidance for the future microstructural design of cloaks.

关键词： Pentamode material Spherical acoustic cloak Scattering calculation Boundary effect Optimization

Self-assembly of perovskite nanocrystals:From driving forces to applications

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Energy Chemistry 2024年第1期88卷 561-578,I0013页

作者： yi Li fei Zhang School of Chemical Engineering and Technology Tianjin UniversityTianjin 300072China Collaborative Innovation Center of Chemical Science and Engineering(Tianjin) Tianjin 300072China

Self-assembly of metal halide perovskite nanocrystals(NCs)into superlattices can exhibit unique collective properties,which have significant application values in the display,detector,and solar cell *** review discusses the driving forces behind the self-assembly process of perovskite NCs,and the commonly used self-assembly methods and different self-assembly structures are ***,we summarize the collective optoelectronic properties and application areas of perovskite superlattice ***,we conclude with an outlook on the potential issues and future challenges in developing perovskite NCs.

关键词： Self-assembly Metal halide perovskite Nanocrystals Driving forces

Surface embedded binary Co-Cu hydroxy phosphate over surface of oxy/hydroxides for efficient nitrate reduction to ammonia

在线全文

学校读者我要写书评

暂无评论

Nano Research 2025年第1期18卷 195-207页

作者： Chun Zhu yifei Yang yike Jing Zhen Zeng Xuesong yi Wei Sun fei Yang Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province School of Environmental Science and EngineeringHainan UniversityHaikou 570228China

Electrochemical nitrate reduction reaction(NO3RR)to ammonia is a promising approach to address excess Ncontamination in aqueous environment but suffers from a limited ammonia yield and selectivity due to the low concentration and sluggish *** work reports a three-dimensional porous electrode with binary Co_(2)Cu_(1)hydroxy phosphate embedded into the surface of Ni_(3)Co_(1)oxy/hydroxides(CoCu-PH@NiCo/Ni,“PH”means phosphate-hydroxide),which delivers a yield of 4.13 mg·h^(-1)·cm^(-2)with a high Faraday efficiency of 92.6%under a low nitrate concentration of 40 mM and provide an impressive *** embedded structure of the as-prepared catalyst exhibits unique metal coordination ligands and valence states different from the unitary *** electrochemical in situ infrared spectra and theoretical calculations revealed that the Co sites with the ability to dissociate water molecular to form adsorbed OH*can effectively provide the required protons for the deoxygenation and hydrogenation steps during NO3-conversion,thereby,effectively reducing the energy barrier of the key transition states in the NO3RR process to improve the intrinsic *** demonstrate that the rational design of binary components with the appropriate ability to activate water molecules as well as the threedimensional porous skeletal structure are expected to promote effectively the low-concentration nitrates conversion to ammonia.

关键词： nitrate reduction hydroxy phosphate surface embedded water dissociation active hydroxy adsorbed

Innate immune responses to DNA viruses

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Protein & Cell 2013年第1期4卷 1-7页

作者： ying nie Yan-yi Wang Wuhan Institute of Virology Chinese Academy of SciencesWuhan 430071China Graduate University of Chinese Academy of Sciences Beijing 100049China

The innate immune system acts as the first line of defense against pathogens,which is also essen-tial for initiation of adaptive *** immune responses are initiated by pattern-recognition receptors(PRRs),which recognize conserved molecular structures of pathogens called patho-gen-associated molecular patterns(PAMPs).The infection of virus triggers a series of signaling events leading to transcriptional induction of type I interferons(IFNs)and proinflammatory *** recent years,the mechanisms of viral RNA recognition and RNA virus-triggered signaling pathways have been well ***,it remains unclear on how DNA virus infection is sensed by host cells and triggers the host antiviral *** ten potential viral DNA sen-sors have been reported,none of them is validated as a generally used sensor for distinct DNA viruses in divergent cell types and ***,we provide a summary and perspective on recent advances in innate immune responses to DNA viruses.

关键词： initiated nat pattern