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Dry Port-Seaport Logistics Network Construction under the Belt and Road Initiative: A Case of Shandong Province in China

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Journal of Systems Science and Systems Engineering 2021年第2期30卷 178-197页

作者： Jingci Xie yiran sun Xin Huo School of Management Shandong UniversityJi'nan 250100China CRRC Qingdao Sifang Co.Ltd Qingdao 266111China

In recent years,China's dry ports have entered into a period of rapid development,especially driven by the Belt and Road initiative(BRI).This initiative not only provides valuable opportunities,but also intensifies fierce competition between *** order to earn more profits and maintain an advantageous position,dry ports generally tend to rely on seaports to increase competitiveness and attract more goods,and seaports are also willing to cooperate with dry ports to expand their *** a large coastal province in China,Shandong Province has good maritime *** of the fierce competition among seaports inside and outside Shandong Province,port operators should make good use of the opportunity offered by BRI to make connections with the inland cities through the dry port-seaport logistics network and enhance the *** order to take an active part in the process of the BRI,forming a dry port-seaport logistics network is a win-win strategy for Shandong *** research first analyzes the impact of the Belt and Road initiative on ports of Shandong and its development,then uses complex network theory and TOPSIS method to select dry port candidate cities from BRI's important transportation *** considering economic benefits,carbon emissions and construction costs,a multi-objective optimization model is established with a construction cost preference *** the NSGA-II algorithm is used to solve the realistic *** study finds that when the construction cost increases,the transportation cost and carbon emission cost will decrease,which indicates that the dry port-seaport logistics network established under the BRI can reduce the cost of logistics transportation and environmental pollution.

关键词： Dry port Belt and Road Initiative logistics network mathematical programming

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Nano-/Micro-confined Water in Graphene Hydrogel as Superadsorbents for Water Purification

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Nano-Micro Letters 2020年第1期12卷 13-26页

作者： yiran sun Fei Yu Cong Li Xiaohu Dai Jie Ma State Key Laboratory of Pollution Control and Resource Reuse College of Environmental Science and EngineeringTongji University1239 Siping RoadShanghai 200092People’s Republic of China College of Marine Ecology and Environment Shanghai Ocean UniversityShanghai 201306People’s Republic of China Department of Chemical and Biomolecular Engineering The University of AkronAkronOH 44325USA Research Center for Environmental Functional Materials College of Environmental Science and EngineeringTongji University1239 Siping RoadShanghai 200092People’s Republic of China Shanghai Institute of Pollution Control and Ecological Security Shanghai 200092People’s Republic of China

Confined water has been proven to be of great importance due to its pervasiveness and contribution to life and many fields of scientific ***,the control and characterization of confined water are a ***,a confined space is constructed by flexibly changing the pH of a graphene oxide dispersion under the self-assembly process of a graphene hydrogel(GH),and the confined space is adjusted with variation from 10.04 to 3.52 *** water content in GH increases when the pore diameter of the confined space decreases;the corresponding adsorption capacity increases from 243.04 to 442.91 mg g−***,attenuated total reflectance Fourier transform infrared spectroscopy and Raman spectroscopy are utilized to analyze the hydrogen bonding structure qualitatively and quantitatively,and correlation analysis reveals that the improvement in the adsorption capacity is caused by incomplete hydrogen bonding in the confined ***,confined water is assembled into four typical porous commercial adsorbents,and a remarkable enhancement of the adsorption capacity is *** research demonstrates the application potential for the extraordinary properties of confined water and has implications for the development of highly effective confined water-modified adsorbents.

关键词： Confined water Graphene hydrogel Hydrogen bonding Adsorption Antibiotic

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Optically Controlled Coercive Field of MAPbl_(3)/P(VDF-TrFE)Ferroelectric Composite Films

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Chemical Research in Chinese Universities 2023年第2期39卷 228-233页

作者： SU Yangfan sun yiran ZHOU Dikui TANG Xiaoming HAN Gaorong REN Zhaohui State Key Laboratory of Silicon Materials School of Materials Science and EngineeringZhejiang UniversityHangzhou310027P.R.China Center of Electron Microscope School of Materials Science and EngineeringZhejiang UniversityHangzhou310027P.R.China Research Center for Humanoid Sensing Zhejiang LabHangzhou311100P.R.China

Ferroelectric polymers,such as poly(vinylidene fluoride-trifluoroethylene)[P(VDF-TrFE)or PVTF]have attracted growing interest in developing flexible devices because of their excellent ferroelectricity and *** coercive field(E c)inherent to PVTF for switching its polarization,however,is not beneficial for practical memory or sensor device *** strategies,including irradiation and interface control,have been thus developed to reduce E *** many efforts,a facile approach to tailoring intrinsic E_(c) of PVTF has not been *** this work,an optically controlled E_(c) was reported,which is achieved for the first time by introducing photosensitive MAPbI3 nanocrystals into PVTF *** exposed to the irradiation of 532 nm laser light,a decreased E_(c) of the composites can be achieved reversibly by increasing the light *** decreased level of E_(c) increases as the MAPbI3 content enhanced,and a 10.7%reduction of E_(c) can be achieved in 15%(mass fraction)MAPbI3/PVTF *** results could be attributed to loading an internal stress on PVTF,which was generated by the photostriction of MAPbI3 *** explanation was further supported by in-situ XRD results under irradiation of 532 nm laser *** findings may offer the opportunity to optically modulate the ferroelectric properties of PVTF composites for optimized device performances.

关键词： Poly(vinylidene fluoride-trifluoroethylene)[P(VDF-TrFE)] MAPbI_(3) Photostriction Optically controlled coercive field

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Manipulating Na occupation and constructing protective film of P2-Na_(0.67)Ni_(0.33)Mn_(0.67)O_(2) as long-term cycle stability cathode for sodium-ion batteries

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Journal of Energy Chemistry 2024年第1期88卷 603-611,I0013页

作者： yiran sun Pengfei Zhou Siyu Liu Zhongjun Zhao Yihao Pan Xiangyan Shen Xiaozhong Wu Jinping Zhao Junying Weng Jin Zhou School of Chemistry and Chemical Engineering Shandong University of TechnologyZibo 0255000ShandongChina School of Materials Science and Engineering Shandong University of TechnologyZibo 255049ShandongChina

P2-Na_(0.67)Ni_(0.33)Mn_(0.67)O_(2)(NNMO)is promising cathode material for sodium-ion batteries(SIBs)due to its high specific capacity and fast Na+diffusion ***,the irreversible P2-O_(2)phase transformation,Na+/vacancy ordering,and transition metal(TM)dissolution seriously damage its cycling stability and restrict its commercialization ***,Na occupation manipulation and interface stabilization are proposed to strengthen the phase structure of NNMO by synergistic Zn/Ti co-doping and introducing lithium difluorophosp(LiPO_(2)F_(2))film-forming electrolyte *** Zn/Ti co-doping regulates the occupancy ratio of Nae/Nafat Na sites and disorganizes the Na+/vacancy ordering,resulting in a faster Na+diffusion kinetics and reversible P2-Z phase transition for P2-Na_(0.67)Ni_(0.28)Zn_(0.05)Mn_(0.62)Ti_(0.05)O_(2)(NNZMTO).Meanwhile,the LiPO_(2)F_(2)additive can form homogeneous and ultrathin cathode-electrolyte interphase(CEI)on NNZMTO surface,which can stabilize the NNZMTO-electrolyte interface to prevent TM dissolution,surface structure transformation,and micro-crack *** studies of in situ and ex situ characterizations and theoretical calculations were used to elucidate the storage mechanism of NNZMTO with Li PO_(2)F_(2)*** a result,the NNZMTO displays outstanding capacity retention of 94.44%after 500 cycles at 1C with 0.3 wt%Li PO_(2)F_(2),excellent rate performance of 92.5 mA h g^(-1)at 8C with 0.1 wt%Li PO_(2)F_(2),and remarkable full cell *** work highlights the important role of manipulating Na occupation and constructing protective film in the design of layered materials,which provides a promising direction for developing high-performance cathodes for SIBs.

关键词： Layered cathode Zn/Ti co-doping Na occupation Electrolyte additive Sodium-ion batteries

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Ribosome-inspired electrocatalysts inducing preferential nucleation and growth of three-dimensional lithium sulfide for high-performance lithium-sulfur batteries

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Journal of Energy Chemistry 2024年第7期94卷 517-526页

作者： Zhen Wu Wenfeng He Jiahui Yang Yunuo Gu Ruiqi Yang yiran sun Jiajia Yuan Xin Wang Junwu Zhu Yongsheng Fu Key Laboratory for Soft Chemistry and Functional Materials of Ministry of Education Nanjing University of Science and TechnologyNanjing 210094JiangsuChina School of Energy and Power Engineering Jiangsu UniversityZhenjiang 212013JiangsuChina FEB Res Inst Far East BatteryWuxi 214200JiangsuChina

Nucleation of lithium sulfide(Li_(2)S)induced by electrocatalysts plays a crucial role in mitigating the shut-tle ***,short-chain polysulfides on electrocatalysts surfaces tend to re-dissolve into elec-trolytes,delaying Li_(2)S supersaturation and its *** this study,we draw inspiration from the ribosome-driven protein synthesis process in cells to prepare ultrasmall nitrogen-doped MoS_(2) nanocrys-tals anchored on porous nitrogen-doped carbon networks(N-MoS_(2)-NC)***,the ex-situ SEM demonstrates that ribosome-inspired N-MoS_(2)-NC electrocatalysts induce early nucleation and rapid growth of three-dimensional Li_(2)s during *** calculations reveal that the Li-s bond length in N-MoS_(2)-Li_(2)S(100)is shorter,and the corresponding interfacial formation energy is lower than in MoS_(2)-Li_(2)S(100).This accelerated conversion of lithium polysulfides to Li_(2)S can enhance the utilization of active substances and inhibit the shuttle *** study highlights the potential of ribosome-inspired N-MoS_(2)-NC in improving the electrochemical stability of Li-S batteries,providing valuable insights for future electrocatalyst design.

关键词： Lithium-sulfur batteries Electrocatalysts Nanocrystals Ribosome-inspired Nucleation and growth

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Regulating photocatalytic overall water splitting of ferroelectric heterostructures by size effect

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Nano Research 2024年第9期17卷 8000-8006页

作者： Zixing Ye Daifu Yu Ruian Zhang Fei Qin yiran sun Jie Huang Zhanqi Zhou He Tian Gaorong Han Zhaohui Ren Gang Liu State Key Laboratory of Silicon and Advanced Semiconductor Materials School of Materials Science and EngineeringZhejiang UniversityHangzhou 310027China Shenyang National Laboratory for Materials Science Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China Center of Electron Microscopy School of Materials Science and EngineeringZhejiang UniversityHangzhou 310027China

In the past decade,ferroelectric materials have been intensively explored as promising *** intriguing ability of ferroelectrics is to directly sperate the photogenerated electrons and holes,which is believed to arise from a spontaneous *** how polarization affects the photocatalytic performance is vital to design high-efficiency *** this work,we report a size effect of ferroelectric polarization on regulating the photocatalytic overall water splitting of SrTiO_(3)/PbTiO_(3)nanoplate heterostructures for the first *** was realized hydrothermally by controlling the thickness and thus spontaneous polarization strength of single-crystal and single-domain PbTiO_(3)nanoplates,which served as the substrate for selective heteroepitaxial growth of SrTiO_(3).An enhancement of 22 times in the photocatalytic overall water splitting performance of the heterostructures has been achieved when the average thickness of the nanoplate increases from 30 to 107 nm.A combined experimental investigation revealed that the incompletely compensated depolarization filed is the dominated driving force for the photogenerated carrier separation within heterostructures,and its increase with the thickness of the nanoplates accounts for the enhancement of photocatalytic ***,the concentration of oxygen vacancies for negative polarization compensation has been found to grow as the thickness of the nanoplates increases,which promotes oxygen evolution reaction and reduces the stoichiometric ratio of H_(2)/O_(2).These findings may provide the opportunity to design and develop high-efficiency ferroelectric photocatalysts.

关键词： single-domain nanoplates size effect ferroelectric polarization screening photocatalytic overall water splitting

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后危机时代中国南南合作的战略依托与选择

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教学与研究 2014年第8期 51-58页

作者：孙伊然上海社会科学院世界经济研究所上海200020

中国参与和推动南南合作的战略目标是为自身和发展中世界争取一个有利的国际经济环境。出于基本理念、重大利益上的一致与契合,中国应当以新兴大国作为南南合作的关键性战略依托。中国南南合作的战略选择可以归纳为"一个核心,两个层面"... 详细信息

中国参与和推动南南合作的战略目标是为自身和发展中世界争取一个有利的国际经济环境。出于基本理念、重大利益上的一致与契合,中国应当以新兴大国作为南南合作的关键性战略依托。中国南南合作的战略选择可以归纳为"一个核心,两个层面":一个核心即以发展为导向,指引合作中的各项具体议题;两个层面即在拓展南方国家互利共赢合作的同时,通过与北方国家的互动,改变现行国际经济机制中不尽公正合理的规则,争取更多的发展空间。就此而言,中国和新兴大国并非当前国际体系的颠覆者,而是致力于让全球化更加均衡、共赢的改革者。

关键词：南南合作新兴大国全球经济治理

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民主之用:呼吁机制与发展的稳定性

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上海行政学院学报 2010年第4期11卷 26-33页

作者：孙伊然上海社会科学院上海200020

对于发展而言,民主有何功效?着眼于发展的稳定性,本文运用"退出-呼吁"模型分析了民主制度的经济意义。发展不仅意味着增长速度,还意味着稳定性,两者缺一不可。民主制度对促进经济绩效恢复、维持发展的稳定性有着重要的积极作用。其所以... 详细信息

对于发展而言,民主有何功效?着眼于发展的稳定性,本文运用"退出-呼吁"模型分析了民主制度的经济意义。发展不仅意味着增长速度,还意味着稳定性,两者缺一不可。民主制度对促进经济绩效恢复、维持发展的稳定性有着重要的积极作用。其所以如此,主要在于民主制度所蕴含之有效的呼吁机制。无论垂直呼吁还是水平呼吁,都从不同方面、以不同机制化解了经济运行中的波动与风险。非但如此,在全球化的背景下,呼吁的重要性将愈发凸显,同时也将面临更高的要求。

关键词：退出呼吁民主经济稳定性全球化

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中国增长前景的国际政治经济学逻辑

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社会科学 2024年第2期 126-134页

作者：孙伊然上海社会科学院世界经济研究所

中国增长是当今时代的重大标志性事件。这一事件有着深刻的政治经济内涵,折射出中国与世界之间的深切关联。理解中国增长,需要将其置于中国式现代化的演进脉络而予以审视,探究其内在属性、关键动力与指导理念。增长依托于且服务于中国... 详细信息

中国增长是当今时代的重大标志性事件。这一事件有着深刻的政治经济内涵,折射出中国与世界之间的深切关联。理解中国增长,需要将其置于中国式现代化的演进脉络而予以审视,探究其内在属性、关键动力与指导理念。增长依托于且服务于中国式现代化。增长的动力主要在于政治经济层面,而不单是经济层面。增长背后是全局性、系统性的新发展理念。对于世界而言,中国增长的意义主要体现于规则、交往获益、价值观三个层面。在规则层面,中国的增长意味着与发达国家之间就国际规则的磨合趋于明朗化,全球南方的发展空间趋于扩展。在交往获益层面,中西之间竞争合作并行的态势很可能会延续,中国与发展中国家之间的相互依存则更趋长期性、互惠性与韧性。在价值观层面,受中国增长的影响,发达国家对现代化的理解正在经历反思与调整,而发展中国家对“另一种选择”的重视则意味着全球南方提升内部凝聚力、加强彼此协调水平的可能契机。

关键词：中国增长全球南方中国式现代化国际政治经济学

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“全球化-福利国家”关联的理论演进

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外交评论（外交学院学报） 2010年第1期27卷 143-158页

作者：孙伊然上海社会科学院世界经济研究所上海200020

过去三十年间,国际政治经济学领域的众多学者卷入了一场重要的理论之争,即全球化与福利国家之间的关联。这一论争沿着"收缩还是扩张"的主线展开,至今未有定论。位于论争光谱两端的代表性观点——"效率假说"与"补偿假说"——得到了全方... 详细信息

过去三十年间,国际政治经济学领域的众多学者卷入了一场重要的理论之争,即全球化与福利国家之间的关联。这一论争沿着"收缩还是扩张"的主线展开,至今未有定论。位于论争光谱两端的代表性观点——"效率假说"与"补偿假说"——得到了全方位的阐释和检验。随着研究的进展,起初"非此即彼"式的理论对立逐渐被更为具体的分歧所取代。本文试图从变量设定、传导机制和样本选取三个方面对此前研究进行梳理,总结其共识,追溯分歧的根源。在此基础上评介此前研究之得失,并指出可能的改进之处。

关键词：全球化福利国家效率假说补偿假说

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