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Effects of sepsis on hippocampal volume and memory function

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World Journal of Emergency Medicine 2020年第4期11卷 223-230页

作者： Miao Yuan Ding-yi Yan Fang-shi Xu Yi-di Zhao Yang Zhou long-fei pan Emergency Department the Second Affi liated Hospital of Xi’an Jiaotong UniversityXi’anChina 2 Department of CardiologyXi’an No.3 HospitalXi’anChina

BACKGROUND:This study aimed to determine the effects of sepsis on brain integrity,memory,and executive ***:Twenty sepsis patients who were not diagnosed with sepsis-associated encephalopathy(SAE)but had abnormal electroencephalograms(EEGs)were *** control group included twenty healthy persons.A neuropsychological test of memory and executive function and a brain magnetic resonance imaging scan were *** volumes of cortex and subcortex were measured using the FreeSurfer *** Physiology and Chronic Health Evaluation II(APACHE II)score was used to determine the disease ***:In the sepsis group,the levels of immediate free recall,immediate cued recall,and delayed cued recall in the California Verbal Learning Test-II(CVLT-II)were significantly lower;the explicit memory(recollection process)in the process dissociation procedure test was lower;and the volumes of the left and right hippocampi were significantly lower compared with the control *** volume of the presubiculum in the hippocampus of sepsis patients showed statistically signifi cant *** the sepsis group,the volumes of the left and right hippocampi were negatively correlated with the APACHE II score and positively with immediate free recall,immediate cued recall,and delayed cued recall in the CVLT-II;moreover,the hippocampal volume was significantly correlated with recollection but not with ***:Patients with abnormal EEGs during hospitalization but with no SAE still have reduced hippocampal volume and memory defi *** fi nding indicates that sepsis leads to damage to specifi c parts of the hippocampus.

关键词： Hippocampus Magnetic resonance imaging Memory Sepsis-associated encephalopathy

Could extracellular vesicles derived from mesenchymal stem cells be a potential therapy for acute pancreatitis-induced cardiac injury?

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World Journal of Stem Cells 2023年第7期15卷 654-664页

作者： long-fei pan Ze-Qun Niu Song Ren Hong-Hong Pei Yan-Xia Gao Hui Feng Jiang-Li Sun Zheng-Liang Zhang Emergency Department The Second Affiliated Hospital of Xi'an Jiaotong UniversityXi’an 710004Shaanxi ProvinceChina Department of Geriatric Digestive Surgery The Second Affiliated Hospital of Xi'an Jiaotong UniversityXi’an 710004Shaanxi ProvinceChina

Acute pancreatitis(AP)often leads to a high incidence of cardiac injury,posing significant challenges in the treatment of severe AP and contributing to increased mortality *** stem cells(MSCs)release bioactive molecules that participate in various inflammatory ***,extracellular vesicles(EVs)secreted by MSCs have garnered extensive attention due to their comparable anti-inflammatory effects to MSCs and their potential to avoid risks associated with cell ***,the therapeutic potential of MSCs-EVs in various inflammatory diseases,including sepsis and AP,has gained increasing *** preclinical research on the utilization of MSCs-EVs in AP-induced cardiac injury is limited,several studies have demonstrated the positive effects of MSCs-EVs in regulating inflammation and immunity in sepsis-induced cardiac injury and cardiovascular ***,clinical studies have been conducted on the therapeutic application of MSCs-EVs for some other diseases,wherein the contents of these EVs could be deliberately modified through prior modulation of ***,we hypothesize that MSCs-EVs hold promise as a potential therapy for AP-induced cardiac *** paper aims to discuss this ***,additional research is essential to comprehensively elucidate the underlying mechanisms of MSCs-EVs in treating AP-induced cardiac injury,as well as to ascertain their safety and efficacy.

关键词： Acute pancreatitis Cardiac injury Mesenchymal stem cells Extracellular vesicles Inflammation Therapeutic strategies

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

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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

Co-production of hydrogen, oxygen, and electricity via an integrated solar-driven system with decoupled water electrolyzer and Na-Zn ion battery

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Journal of Energy Chemistry 2025年第1期100卷 621-627页

作者： fei Lv longjie Liu Jiazhe Wu Pengfei Wang Lixia pan Dengwei Jing Yubin Chen International Research Center for Renewable Energy State Key Laboratory of Multiphase Flow in Power Engineering Xi'an Jiaotong University

Combining water electrolysis and rechargeable battery technologies into a single system holds great promise for the co-production of hydrogen （H2） and ***,the design and development of such systems is still in its ***,an integrated hydrogen-oxygen （O2）-electricity co-production system featuring a bipolar membrane-assisted decoupled electrolyzer and a Na-Zn ion battery was established with sodium nickelhexacyanoferrate （NaNiHCF） and Zn2+/Zn as dual redox *** decoupled electrolyzer enables to produce H2and O2in different time and space with almost 100%Faradaic efficiency at 100 mA ***,the charged NaNiHCF and Zn electrodes after the electrolysis processes formed a Na-Zn ion battery,which can generate electricity with an average cell voltage of 1.75 V at 10 m A *** connecting Si photovoltaics with the modular electrochemical device,a well-matched solar driven system was built to convert the intermittent solar energy into hydrogen and electric energy with a solar to hydrogen-electricity efficiency of 16.7%,demonstrating the flexible storage and conversion of renewables.

关键词： Hydrogen Electricity Decoupled water electrolyzer Na-Zn ion battery Solar energy

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

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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

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某汽油发动机气缸垫失效分析

内燃机与配件 2024年第6期 67-69页

作者：路明费龙盼李强宁波吉利罗佑发动机零部件有限公司浙江宁波315336

某发动机在进行冷热冲击工况耐久试验时发生了多处漏油并且有开裂的现象,为了研究瞬态工况气缸垫发生的变化,本文基于有限元的方法,根据发动机试验循环数据,分析在冷热冲击试验中气缸垫密封发生的变化。研究结果表面,此方法可以得到密... 详细信息

某发动机在进行冷热冲击工况耐久试验时发生了多处漏油并且有开裂的现象,为了研究瞬态工况气缸垫发生的变化,本文基于有限元的方法,根据发动机试验循环数据,分析在冷热冲击试验中气缸垫密封发生的变化。研究结果表面,此方法可以得到密封筋在整个工作循环下的压线历程,在升温阶段更容易发生渗漏问题,分析结果与试验结果基本一致。通过对缸垫层数的优化,可以解决漏油及开裂问题。

关键词：有限元方法瞬态温度场气缸垫提升量线压力

Optimizing the key parameter to accelerate the recovery of AMOC under a rapid increase of greenhouse gas forcing

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Atmospheric and Oceanic Science Letters 2025年第1期18卷 39-45页

作者： Haolan Ren fei Zheng Tingwei Cao Qiang Wang International Center for Climate and Environment Science(ICCES) Institute of Atmospheric PhysicsChinese Academy of SciencesBeijingChina University of Chinese Academy of Sciences BeijingChina College of Oceanography Hohai UniversityNanjingChina CAS Key Laboratory of Ocean Circulation and Waves Institute of OceanologyChinese Academy of Sciences and Pilot National Laboratory for Marine Science and Technology(Qingdao)QingdaoChina

Atlantic Meridional Overturning Circulation(AMOC)plays a central role in long-term climate variations through its heat and freshwater transports,which can collapse under a rapid increase of greenhouse gas forcing in climate *** studies have suggested that the deviation of model parameters is one of the major factors in inducing inaccurate AMOC *** this work,with a low-resolution earth system model,the authors try to explore whether a reasonable adjustment of the key model parameter can help to re-establish the AMOC after its *** a new optimization strategy,the extra freshwater flux(FWF)parameter is determined to be the dominant one affecting the AMOC’s *** traditional ensemble optimal interpolation(EnOI)data assimilation and new machine learning methods are adopted to optimize the FWF parameter in an abrupt 4×CO_(2) forcing experiment to improve the adaptability of model parameters and accelerate the recovery of *** results show that,under an abrupt 4×CO_(2) forcing in millennial simulations,the AMOC will first collapse and then re-establish by the default FWF parameter ***,during the parameter adjustment process,the saltier and colder sea water over the North Atlantic region are the dominant factors in usefully improving the adaptability of the FWF parameter and accelerating the recovery of AMOC,according to their physical relationship with FWF on the interdecadal timescale.

关键词： Recovery of AMOC 4×CO_(2)forcing Key parameter Parameter estimation Data assimilation Machine learning

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抗战阅兵老兵方队随车卫勤保障的实践

中国急救复苏与灾害医学杂志 2016年第11期11卷 1054-1056页

作者：刘钰马晓龙潘菲黎檀实解放军总医院急诊科北京100039 解放军总医院院办公室

目的总结抗战胜利70周年阅兵活动老兵方队的卫勤保障工作，介绍参阅卫勤保障经验。方法明确工作重点及任务特点，保障细致扎实；以科学的重大事件医学保障理论作为行动指导；采用灵活的医学保障模式适应特殊条件和需求。结论保障力量联... 详细信息

目的总结抗战胜利70周年阅兵活动老兵方队的卫勤保障工作，介绍参阅卫勤保障经验。方法明确工作重点及任务特点，保障细致扎实；以科学的重大事件医学保障理论作为行动指导；采用灵活的医学保障模式适应特殊条件和需求。结论保障力量联动是做好阅兵卫勤的重要支撑。保健急救并举是做好阅兵卫勤的基础。制度机制创新是做好阅兵卫勤的保证。精准精细服务是做好阅兵卫勤的前提。

关键词：健康管理卫勤保障医学救援

An Improved Repetitive-Control System Using a Complex-Coefficient Filter

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IEEE/CAA Journal of Automatica Sinica 2025年第1期 282-284页

作者： Qicheng Mei Jinhua She fei long Yanjun Shen the College of Electrical Engineering and New Energy China Three Gorges University the Hubei Provincial Key Laboratory for Operation and Control of Cascaded Hydropower Station the School of Engineering Tokyo University of Technology

Dear Editor,This letter presents an improved repetitive controller(IRC) that uses a complex-coefficient filter to enhance the tracking performance of a system for periodic signals. Compared with the low-pass filter used in the conventional repetitive controller(CRC), the complex-coefficient filter causes less change in the phase and amplitude of a signal at the frequencies of the periodic signal, especially at the fundamental frequency, when the two filters have the same cutofffrequency.

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