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长三角金融集聚与生态绿色协调发展:基于中心城市溢出效应视角

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西南民族大学学报（人文社会科学版） 2024年第2期45卷 85-98页

作者：吴富强陈雨佳张斌苏州大学商学院江苏苏州21503 南京师范大学商学院江苏南京210023 苏州大学江苏现代金融研究基地

金融集聚是现代金融产业发展的必然趋势,寻找金融集聚影响长三角生态绿色协调发展的关键突破口具有重要现实意义。文章采用长三角41个城市2003-2020年面板数据,系统评价了长三角中心城市金融集聚和生态绿色协调发展水平,并通过实证研究... 详细信息

金融集聚是现代金融产业发展的必然趋势,寻找金融集聚影响长三角生态绿色协调发展的关键突破口具有重要现实意义。文章采用长三角41个城市2003-2020年面板数据,系统评价了长三角中心城市金融集聚和生态绿色协调发展水平,并通过实证研究发现:(1)长三角金融集聚和生态绿色协调发展度均呈现稳步且缓慢的上涨趋势,但总体水平均不高,大部分城市处于轻度失衡的绿色协调水平和较低的金融集聚水平,其中区域中心城市表现较好。(2)金融集聚明显促进了生态绿色协调发展,能够实现对绿色经济效率、绿色生活水平和绿色环境质量的同步驱动。(3)区域中心城市大部分未能形成有效的辐射效应。上海的涓滴效应明显,倾向于浙江和上海大都市圈;宁波的涓滴效应在全域和省域范围内显著;杭州的涓滴效应在杭州都市圈处于倒“U”型影响的左侧阶段;南京和苏州在省域范围内极化效应明显;合肥对邻省的极化效应明显。大都市圈的发展一定程度上改善了金融集聚辐射能力。

关键词：金融集聚生态绿色协调发展溢出效应长三角地区绿色金融

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中心开孔加筋壁板压缩性能研究

南京航空航天大学学报 2024年第1期56卷 96-102页

作者：杨博晗吴富强龚凡珂王斌南京航空航天大学飞行器先进设计技术国防重点学科实验室南京210016

为了研究飞机结构中不同开孔尺寸加筋壁板在压缩载荷下的屈曲行为和后屈曲行为,本文设计了相应的试验方法和试验夹具,完成了壁板压缩试验。得到了不同开孔尺寸加筋壁板的屈曲/破坏载荷、失稳过程及破坏模式。结果表明:加筋壁板的屈曲模... 详细信息

为了研究飞机结构中不同开孔尺寸加筋壁板在压缩载荷下的屈曲行为和后屈曲行为,本文设计了相应的试验方法和试验夹具,完成了壁板压缩试验。得到了不同开孔尺寸加筋壁板的屈曲/破坏载荷、失稳过程及破坏模式。结果表明:加筋壁板的屈曲模式是筋条间蒙皮和筋条外蒙皮发生相反的变形,且屈曲模态随载荷的增加发生多次跳变;加筋壁板的压缩破坏模式是在屈曲变形的基础上筋条伴有明显的变形。针对不同开孔尺寸的加筋壁板进行压缩加载有限元仿真,得到的屈曲与破坏模式和试验的吻合,屈曲/破坏载荷与试验结果的误差在4%以内,验证了有限元模型的有效性。随着开孔尺寸的增加,加筋壁板的屈服载荷先缓慢减小后快速增大;壁板的破坏载荷逐渐减小,最终结构失去后屈曲承载能力。

关键词：加筋壁板压缩试验屈曲后屈曲有限元法

江苏省城镇化与生态环境的耦合协调发展研究——基于包容性增长视角

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经济研究导刊 2024年第14期 52-55页

作者：张斌吴富强苏州大学商学院江苏苏州215021

城镇化与生态环境的耦合协调不仅有助于优化城市发展战略,还可以为政策制定提供科学依据,保障经济增长与生态安全双重目标的实现。通过分析2013—2022年江苏省13个地级市包容性增长、城镇化与生态环境的耦合协调度发现,全省的耦合协调度... 详细信息

城镇化与生态环境的耦合协调不仅有助于优化城市发展战略,还可以为政策制定提供科学依据,保障经济增长与生态安全双重目标的实现。通过分析2013—2022年江苏省13个地级市包容性增长、城镇化与生态环境的耦合协调度发现,全省的耦合协调度从2013年的0.449上升至2022年的0.527,整体处于低度协调状态。苏南和苏中地区的协调度高于全省平均水平,两区域间的竞争态势较为明显;苏北地区的协调度虽然低于平均水平,但也呈现出由中度失调向低度协调状态的积极转变。此外,城市间在协调发展的进程中显示不同程度的进步与挑战,苏州、无锡等城市表现较好,而淮安、连云港等粗放型工业较集中的城市面临环境压力较大的问题。

关键词：江苏省包容性增长城镇化生态环境

Energy estimation and coupling synchronization between biophysical neurons

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Science China(Technological Sciences) 2020年第4期63卷 625-636页

作者： wu fuqiang MA Jun ZHANG Ge Department of Physics Lanzhou University of TechnologyLanzhou 730050China NAAM-Research Group King Abdulaziz UniversityJeddah 21589Saudi Arabia

Static charges can induce spatial electric field while moving charges can induce magnetic *** a result,continuous pumping and exchange of intercellular and extracellular Calcium,potassium and sodium of cells will generate time-varying magnetic field in the ***,the physical effect of electromagnetic induction in neural activities should be included in building biological *** the other hand,the occurrence of action potential and propagation of ions require energy consumption and supply,so the estimation of physical energy becomes *** on our memristive biophysical neuron model,the Hamilton energy function is obtained by using the Helmholtz’s theorem,and this energy is contributed by the electric field and magnetic field described by magnetic *** is found that this improved neuron model can present the main dynamical properties in neural activities,and it characterizes the lower threshold behavior and subthreshold oscillation during refractory *** external forcing current on an isolate is adjusted to calculate the firing patterns,energy function and mode transition,which shows the dependence of energy on electrical ***,magnetic coupling is triggered to modulate the phase synchronization between two identical neurons connected by electric synapse,respectively.

关键词： memristor energy magnetic field phase synchronization

Energy flow accounts for the adaptive property of functional synapses

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Science China(Technological Sciences) 2023年第11期66卷 3139-3152页

作者： wu fuqiang GUO YiTong MA Jun Department of Physics Lanzhou University of TechnologyLanzhou 730050China School of Mathematics and Statistics Ningxia UniversityYinchuan 750021China College of Electrical and Information Engineering Lanzhou University of TechnologyLanzhou 730050China School of Science Chongqing University of Posts and TelecommunicationsChongqing 400065China

In the presence of external stimuli and electromagnetic radiation(EMR),biological neurons can exhibit different firing patterns and switch to appropriate firing modes because of intrinsic *** to memristive synapses can discern the EMR effect,and memristive synapses connecting to neurons can be effectively regulated by external physical *** a dynamical viewpoint,the appropriate setting for memristive synapse intensity can trigger changes in neural activities;however,the biophysical mechanism of adaptive regulation in the memristive biophysical neuron has not been ***,a memristor is used to control a simple neural circuit by generating a memristive current,and an equivalent memristive neuron model is obtained.A single firing mode can be stabilized in the absence of EMR,while multiple firing modes occur in the neuron under *** gain of the memristive synaptic current is dependent on the energy flow,and the shunted energy flow in the memristive channel can control the energy ratio between the electric field and magnetic *** growth and enhancement of the memristive synapse depend on the energy flow across the memristive *** memristive synapse is enhanced when its field energy is below the threshold,and it is suppressed when its field energy is above the *** results explain why and how multiple firing modes are induced and controlled in biological ***,the self-adaption property of memristive neurons was also ***,the control of energy flow in the memristive synapse can effectively regulate the membrane potentials,and neural activities can be effectively controlled to select suitable body gaits.

关键词： memristive synapse electromagnetic induction neural circuit Hamilton energy

Experimental Investigation on Low-Velocity Impact Response and Residual Compressive Bearing Capacity of Composite Stringers

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Transactions of Nanjing University of Aeronautics and Astronautics 2020年第4期37卷 655-662页

作者： CHEN Fang YAO Weixing wu fuqiang State Key Laboratory of Mechanics and Control of Mechanical Structures Nanjing University of Aeronautics and AstronauticsNanjing 210016P.R.China

Three types of composite stringers were impacted from two different *** between impact energy and visible defect length were *** critical impact energy corresponding to barely visible impact damage(BVID)of each stringer was *** with BVID were then compressed to obtain the residual *** results showed that for all types of stringers,the critical energy of in-plane impact is always much lower than out-plane ***-plane impact causes much more decrement of stringers'bearing capacity than outplane *** both impact directions,I-stringers own the highest defect detectability,T-stringers come ***,I-stringers own the better residual strength ratio than I-stringers and *** considering impact defect detectability and residual bearing capacity after impact,T-stringers own the best compression-afterimpact(CAI)behaviors.

关键词： composite stringer low-velocity impact defect compression after impact residual bearing capacity

In-situ construction of PDOL electrolyte with dual-reinforced stable interface for high-voltage lithium metal batteries

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Science China Chemistry 2024年第5期67卷 1664-1671页

作者： Yingkang wu Yuzhou Bai wujie Dong Xue Wang Wenqin Ma fuqiang Huang State Key Lab of Metal Matrix Composites School of Materials Science and EngineeringShanghai Jiao Tong UniversityShanghai 200240China School of Physical Science and Technology Shanghai Tech UniversityShanghai 201210China Shanghai Institute of Ceramics Chinese Academy of SciencesShanghai 200050China

In-situ polymerized electrolytes significantly enhance the interfacial compatibility of lithium metal batteries(LMBs). Typically,in-situ polymerized 1,3-dioxolane(PDOL) exhibits low interfacial resistance, yet still suffers from low ionic conductivity and a narrow electrochemical stability window(ESW). Here, an ultra-stable PDOL-based polymer electrolyte is developed by incorporating plasticizers of tetramethylene sulfone(TMS) and fluorinated ethylene carbonate(FEC) into the 3D cross-linked network, achieving a significant enhancement in the transport capacity and efficiency of Li-ion. The ionic conductivity reaches3.63×10^(-4)S cm^(-1)even at room temperature, and the transference number(tLi^(+)) is even higher at 0.85. Furthermore, the ESW of this electrolyte can be increased to 4.5 V with the addition of TMS, which forms a thin and robust antioxidant cathode-electrolyte interface(CEI) on the surface of high-voltage LiCoO_(2). FEC generates an inorganic-rich solid-electrolyte interface(SEI) on the Li anode, which effectively inhibits the growth of lithium dendrites. Benefiting from the aforementioned advantages, the highvoltage lithium metal battery demonstrates outstanding long-cycle stability, with 93.2% capacity retention after 200 cycles. This work offers a straightforward and accessible method for the practical implementation of high energy density in-situ polymerized solid-state LMBs.

关键词： solid polymer electrolyte in-situ polymerization PDOL high-voltage LMBs

Functionalized lipid nanoparticles modulate the blood-brain barrier and eliminate α-synuclein to repair dopamine neurons

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Asian Journal of Pharmaceutical Sciences 2024年第2期19卷 120-135页

作者： Xiaomei wu Renxiang Yuan Yichong Xu Kai Wang Hong Yuan Tingting Meng fuqiang Hu Department of Pharmacy Ruijin HospitalSchool of MedicineShanghai Jiaotong UniversityShanghai 200000China College of Pharmaceutical Science Zhejiang UniversityHangzhou 310058China Jinhua Institute of Zhejiang University Jinhua 321299China

The challenge in the clinical treatment of Parkinson's disease lies in the lack of disease-modifying therapies that can halt or slow down the progression. Peptide drugs, such as exenatide (Exe), with potential disease-modifying efficacy, have difficulty in crossing the blood-brain barrier (BBB) due to their large molecular weight. Herein, we fabricate multi-functionalized lipid nanoparticles (LNP) Lpc-BoSA/CSO with BBB targeting, permeability-increasing and responsive release functions. Borneol is chemically bonded with stearic acid and, as one of the components of Lpc-BoSA/CSO, is used to increase BBB permeability. Immunofluorescence results of brain tissue of 15-month-old C57BL/6 mice show that Lpc-BoSA/CSO disperses across the BBB into brain parenchyma, and the amount is 4.21 times greater than that of conventional LNP. Motor symptoms of mice in Lpc-BoSA/CSO-Exe group are significantly improved, and the content of dopamine is 1.85 times (substantia nigra compacta) and 1.49 times (striatum) that of PD mice. α-Synuclein expression and Lewy bodies deposition are reduced to 51.85% and 44.72% of PD mice, respectively. Immunohistochemical mechanism studies show AKT expression in Lpc-BoSA/CSO-Exe is 4.23 times that of PD mice and GSK-3β expression is reduced to 18.41%. Lpc-BoSA/CSO-Exe could reduce the production of α-synuclein and Lewy bodies through AKT/GSK-3β pathway, and effectively prevent the progressive deterioration of Parkinson's disease. In summary, Lpc-BoSA/CSO-Exe increases the entry of exenatide into brain and promotes its clinical application for Parkinson's disease therapy.

关键词： Blood-brain barrier Lipid nanoparticles Brain delivery facilitation α-Symuclein Parkinson's disease

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纤维增强复合材料剩余强度衰减模型

南京航空航天大学学报 2008年第4期40卷 517-520页

作者：吴富强姚卫星南京航空航天大学飞行器先进设计技术国防重点学科实验室南京210016

分析了复合材料剩余强度随加载次数增加而单调衰减的疲劳损伤机理,得出复合材料剩余强度衰减率在其疲劳寿命全程内呈"快→缓→快"演化过程,并提出一个剩余强度衰减模型来描述这一过程。该模型从材料的疲劳破坏机制上分析了铺层形式对复... 详细信息

分析了复合材料剩余强度随加载次数增加而单调衰减的疲劳损伤机理,得出复合材料剩余强度衰减率在其疲劳寿命全程内呈"快→缓→快"演化过程,并提出一个剩余强度衰减模型来描述这一过程。该模型从材料的疲劳破坏机制上分析了铺层形式对复合材料剩余强度衰减的影响,并综合考虑了材料抗疲劳性能、受载水平等影响因素。6种复合材料的系列试验数据验证了该模型。结果表明,该模型合理描述了复合材料剩余强度的衰减规律。

关键词：复合材料层舍板剩余强度衰减疲劳损伤