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Anchoring platinum clusters on lamellar MXene for efficient acidic hydrogen evolution reaction

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 2025年 126卷 476-483页

作者： jin, shuwen Zhang, Guangyao Huo, Zhanyue Feng, Libei Liu, Mengyi Sun, Zhiyuan Khalafallah, Diab Wang, Jue Zhang, Qinfang Yancheng Inst Technol Sch Mat Sci & Engn Yancheng 224051 Peoples R China Yancheng Inst Technol Key Lab Adv Technol Environm Protect Yancheng 224051 Jiangsu Peoples R China Nanjing Univ Natl Lab Solid State Microstruct Nanjing 210093 Peoples R China Nanjing Forestry Univ Coll Sci Jiangsu Coinnovat Ctr Efficient Proc & Utilizat Fo Int Innovat Ctr Forest Chem & Mat Nanjing 210037 Peoples R China Aswan Univ Fac Energy Engn Mech Design & Mat Dept POB 81521 Aswan Egypt Yancheng Inst Technol Key Lab Ecol Environm Mat Yancheng 224051 Jiangsu Peoples R China

Hydrogen energy, as a clean and renewable alternative to fossil fuels, requires efficient electrocatalysts for sustainable hydrogen production via the hydrogen evolution reaction (HER). Platinum-based catalysts exhibit superior HER activity but face challenges of high cost, instability, and aggregation under acidic conditions. MXenes, two-dimensional materials with high conductivity and tunable surface chemistry, offer promising support platforms to enhance platinum utilization. Here, we report the design of highly active and stable HER catalysts by anchoring sub-nanometer platinum clusters onto lamellar Ti3C2 and Nb2C MXenes via a cluster beam deposition technique. The optimized Pt/Ti3C2 catalyst achieves a low overpotential of 67 mV at 10 mA cm- 2 in acidic media, outperforming Pt/Nb2C (72 mV), pure Pt clusters (79 mV), and commercial Pt/C (82 mV). This enhancement arises from Ti3C2's larger surface area, which stabilizes Pt clusters, prevents aggregation, and facilitates interfacial electron transfer. The Pt/Ti3C2 heterojunction also demonstrates a Tafel slope of 26.3 mV dec- 1, indicating rapid Volmer-Tafel kinetics, and retains 95 % activity after 5 h of operation. Compared to prior Pt/MXene systems, this work highlights the critical role of MXene surface functionality and Pt cluster dispersion in optimizing HER performance. By reducing platinum loading while maintaining high efficiency, this strategy advances the development of cost-effective electrocatalysts for scalable green hydrogen production. Our findings provide a blueprint for engineering MXene-supported metal clusters to address energy and sustainability challenges.

关键词： Clusters MXene Cluster beam deposition Hydrogen evolution reaction Catalytic activity

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Multi-energy dispatching for uncertainty EV demand: A simulation approach

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FRONTIERS IN ENERGY RESEARCH 2022年 10卷

作者： Ye, Shenxuan Dai, Yuxuan Zhang, Fenglin Qin, Zhiqi jin, shuwen Yan, Qiyao Xu, Yangbing Zhejiang Univ Polytech Inst Hangzhou Peoples R China Weiwojiangxin Tech Co Ltd Hangzhou Peoples R China Zhejiang Univ Sch Management Hangzhou Peoples R China Dalian Maritime Univ Sch Maritime Econ & Management Dalian Peoples R China Zhejiang Univ Sch Oceanog Hangzhou Peoples R China Dalian Maritime Univ Coll Transportat Engn Dalian Peoples R China

Uncertainty and randomness in demand and supply bring significant challenges to the stable operation of the grid and the scheduling planning of multi-energy sources. To solve these challenges, we propose and analyze a multi-energy dispatching model which minimizes the total cost and enhances the efficiency of supplying power. Specifically, we design matching algorithms that simulate an appropriately scaled sequence of stochastic EV demand. We also analyze four different energy dispatching scenarios proving that the scheduling model and the multi-energy synergistic microgrid structure can bring higher efficiency and lower costs. Our main contribution is using a simulation approach to take EVs into account for demand-side uncertainty, which significantly improves the efficiency of grid dispatch.

关键词： uncertainty EV demand simulation approach multi-energy sources microgrid solar power

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SLEEPWISE: A Continuous Sleep Monitoring and Cognitive Evaluation Platform in Ambient Residential Environment 46

SLEEPWISE: A Continuous Sleep Monitoring and Cognitive Evalu...

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46th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2024

作者： jin, shuwen Wang, Danqiong Ma, Xiao Li, Tao Lin, Feng Yu, Lei Zhang, Qing Zhejiang Lab Research Center for Frontier Fundamental Studies Hangzhou China Third Hospital of Shanxi Medical University Shanxi Bethune Hospital Shanxi Academy of Medical Sciences Tongji Shanxi Hospital Taiyuan China Huazhong University of Science and Technology Tongji Hospital Tongji Medical College Wuhan China Complex Systems Research Center Shanxi University Key Laboratory of Complex Systems and Data Science of Ministry of Education Shanxi China

ISBN: (纸本)9798350371499

Age-related cognitive decline presents a significant health challenge for older adults, with no specific medication available to counteract it. Early detection of cognitive decline is crucial for timely intervention and effective management. Sleep status plays a vital role in evaluating cognitive function, as disrupted sleep patterns are associated with cognitive decline and increased risk of neurodegenerative conditions. Existing methods for assessing sleep status, such as self-report questionnaires, actigraphy, and polysomnography, lack the ability to consistently monitor sleep status over a long period. In this paper we introduced SLEEPWISE, an AI-powered platform deployed in residential environments for continuous ambient sleep monitoring to assess the cognitive well-being of older adults. SLEEPWISE utilizes non-contact pads with highly sensitive piezoelectric sensors to monitor sleep parameters such as duration and efficiency, which are transmitted daily to the server. Moreover, we have also developed a gamified module for SLEEPWISE, allowing an objective assessment of daily cognitive functions. This module aids SLEEPWISE in establishing the correlation models between sleep and cognitive health. To evaluate the effectiveness of SLEEP-WISE, a pilot study was conducted with participants recruited from a local hospital. During the 30-days trials, SLEEPWISE identified a negative impact on congnitive performance associated with increased nocturnal body movements and getting out of bad. These findings emphasize the potential of SLEEPWISE as an early screening tool for evaluating daily cognitive health and well-being. © 2024 IEEE.

关键词： Sleep research

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新时代高校生态文明教育的发展趋势及实践路径

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扬州大学学报（高教研究版） 2023年第5期27卷 72-79页

作者：金淑文扬州大学江苏扬州225009

中国式现代化对生态文明教育提出了新的要求。高校是生态文明教育的重要阵地,肩负培养时代新人的重要使命,必须主动适应新时代的要求,顺应生态文明教育制度化、综合化、系统化、生活化、数字化的发展趋势,通过课程育人、环境育人、实践... 详细信息

中国式现代化对生态文明教育提出了新的要求。高校是生态文明教育的重要阵地,肩负培养时代新人的重要使命,必须主动适应新时代的要求,顺应生态文明教育制度化、综合化、系统化、生活化、数字化的发展趋势,通过课程育人、环境育人、实践育人、生活育人等多个纬度,将生态文明教育贯彻到培养目标中,贯穿育人全过程。

关键词：高校生态文明教育生态文明教育发展趋势生态文明教育实践

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绿色创新如何影响隐含权益久期?——来自工业企业的证据

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财经理论与实践 2024年第4期45卷 33-41页

作者：徐维东金书文朱丹宇浙江大学管理学院浙江杭州310058 浙江大学经济学院浙江杭州310058

基于2008—2019年中国A股上市工业企业数据,运用多元线性回归模型探讨绿色创新对隐含权益久期的影响及其作用机制。研究发现:绿色创新的实施增加了企业的隐含权益久期。机制分析表明,绿色创新在短期内抑制企业的增长,长期内则提高了企... 详细信息

基于2008—2019年中国A股上市工业企业数据,运用多元线性回归模型探讨绿色创新对隐含权益久期的影响及其作用机制。研究发现:绿色创新的实施增加了企业的隐含权益久期。机制分析表明,绿色创新在短期内抑制企业的增长,长期内则提高了企业的成长潜力,因此实施绿色创新的企业的现金流将较少集中在近期。此外,国有企业可以更快突破绿色创新短期内的抑制作用,从而减小绿色创新对隐含权益久期的影响。鉴于此,决策部门应充分关注绿色创新的双重外部性,明晰其长短期经济效益差异,助力企业绿色创新。

关键词：绿色创新绿色专利隐含权益久期现金流久期

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电针通过PLC/IP3通路改善功能性消化不良大鼠胃肠动力障碍

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实用医学杂志 2024年第16期40卷 2284-2290页

作者：杨德茜陈琪金舒文徐派的湖北中医药大学针灸骨伤学院武汉430061

目的确定电针是否调节了血小板衍生生长因子受体α阳性(PDGFRα+)细胞中磷脂酶C(PLC)/肌醇-1,4,5-三磷酸酯(PLC/IP3)通路,从而改善功能性消化不良(FD)胃肠动力障碍。方法将40只SD大鼠随机分为5组:空白组、模型组、电针组、U73122(PLC抑... 详细信息

目的确定电针是否调节了血小板衍生生长因子受体α阳性(PDGFRα+)细胞中磷脂酶C(PLC)/肌醇-1,4,5-三磷酸酯(PLC/IP3)通路,从而改善功能性消化不良(FD)胃肠动力障碍。方法将40只SD大鼠随机分为5组:空白组、模型组、电针组、U73122(PLC抑制剂)组、U73122+电针组,每组8只。除空白组外所有大鼠采用多因素应激干预法建立FD大鼠模型。造模成功后,U73122组予以腹腔注射抑制剂,电针组取足三里和太冲穴,U73122+电针组在针刺前2 h注射抑制剂。10 d后行胃肠动力学检测;采用免疫印迹法检测PDGFRα、PLC、P-PLC、IP3的蛋白表达水平;用免疫荧光检测PDGFRα和PLC、IP3的平均荧光密度和共定位表达情况;电子显微镜观察胃窦区域缝隙连接(GJ)情况。结果造模后大鼠胃肠动力减弱,PDGFRα、PLC和IP3的蛋白表达水平显著降低,GJ增宽,细胞形态改变;与模型组比较,电针组、U73122组和U73122+电针组大鼠胃肠动力显著改善,胃窦PDGFRα、PLC、P-PLC、IP3表达水平上升,GJ稍紧密,细胞形态恢复;U73122组和U73122+电针组胃窦PDGFRα、PLC、P-PLC、IP3表达水平无明显差异;PDGFRα与PLC和IP3存在荧光共定位。结论电针通过激活PDGFRα+细胞中的PLC/IP3通路改善FD大鼠的胃肠动力障碍。

关键词：功能性消化不良胃肠动力障碍血小板衍生生长因子受体α阳性细胞磷脂酶C 肌醇-1,4,5-三磷酸酯

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SLEEPWISE: A Continuous Sleep Monitoring and Cognitive Evaluation Platform in Ambient Residential Environment

SLEEPWISE: A Continuous Sleep Monitoring and Cognitive Evalu...

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Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)

作者： shuwen jin Danqiong Wang Xiao Ma Tao Li Feng Lin Lei Yu Qing Zhang Research Center for Frontier Fundamental Studies Zhejiang Lab Hangzhou China Shanxi Bethune Hospital Shanxi Academy of Medical Sciences Tongji Shanxi Hospital Third Hospital of Shanxi Medical University Taiyuan China Tongji Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China Key Laboratory of Complex Systems and Data Science of Ministry of Education Complex Systems Research Center Shanxi University China

ISBN: (数字)9798350371499

ISBN: (纸本)9798350371505

关键词： Correlation Hospitals Sensors Servers Biomedical monitoring Older adults Engineering in medicine and biology Monitoring

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Fractal analysis of rat dermal tissue in the different injury states

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INTERNATIONAL WOUND JOURNAL 2022年第5期19卷 1016-1022页

作者： Xu, Haisong Zhang, jingde Jiang, Yuzhi Lu, Shuliang Niu, Yiwen Dong, Jiaoyun jin, shuwen Song, Fei Cao, Xiaozan Qing, Chun Tian, Ming Liu, Yingkai Shanghai Jiao Tong Univ Ruijin Hosp Sch Med Shanghai Burns Inst Shanghai 200025 Peoples R China Shanghai Jiao Tong Univ Sch Med Dept Plast Surg Shanghai Hosp 9 Shanghai Peoples R China Second Mil Med Univ Dept Plast Surg Changhai Hosp Shanghai Peoples R China

Scar formation and chronic ulcers can develop following a skin injury. They are the result of the over- or underproduction of collagen. It is very important to evaluate the quality and quantity of the collagen that is produced during wound healing, especially with respect to its structure, as these factors are very important to a complicated outcome. However, there is no standard way to quantitatively analyse dermal collagen. As prior work characterised some potentially fractal properties of collagen, it was hypothesised that collagen structure could be evaluated with fractal dimension analysis. Small-angle X-ray scattering technology (SAXS) was used to evaluate the dermis of rats exposed to graft harvest, burn, and diabetic pathologic states. It was found that almost all collagen structures could be quantitatively measured with fractal dimension analysis. Further, there were significant differences in the three-dimensional (3-D) structure of normal collagen versus that measured in pathologic tissues. There was a significant difference in the 3-D structure of collagen at different stages of healing. The findings of this work suggest that fractal analysis is a good tool for wound healing analysis, and that quantitative collagen analysis is very useful for assessing the structure of dermal collagen.

关键词： burns collagen structure diabetes fractal dimension quantitative analysis wound model

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柔性管理的传统渊源与现代价值

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中国文化与管理 2022年第2期 188-201,263页

作者：金淑文方舟扬州大学扬州市职业大学

中国古代柔性管理具有区别于西方管理思想的鲜明特色。本文立足于先秦语境,梳理中国古代柔性管理的认知基础,呈现中国古代柔性管理的理论与实践,阐述中国古代柔性管理的意义与价值,构建具有中国特色的柔性管理话语体系。

关键词：柔性管理认知基础理论实践意义价值

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基于AMPK/mTOR通路探讨电针“丰隆”穴对高脂血症大鼠肝脏胆固醇代谢的影响

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中国针灸 2024年第10期44卷 1155-1164页

作者：金舒文刘嘉宝李丹张茜刘曼琦张红星潘小丽湖北中医药大学针灸骨伤学院武汉430061 江汉大学医学部江汉大学针灸研究所湖北武汉430056 湖北时珍实验室武汉430061

目的:观察电针“丰隆”穴对高脂血症(HPL)大鼠腺苷酸活化蛋白激酶(AMPK)、哺乳动物雷帕霉素靶蛋白(mTOR)表达水平及下游胆固醇代谢相关分子胆固醇调节元件结合蛋白-2(SREBP-2)、3-羟基3-甲基戊二酰辅酶A还原酶(HMGCR)、三磷酸腺苷结合... 详细信息

目的:观察电针“丰隆”穴对高脂血症(HPL)大鼠腺苷酸活化蛋白激酶(AMPK)、哺乳动物雷帕霉素靶蛋白(mTOR)表达水平及下游胆固醇代谢相关分子胆固醇调节元件结合蛋白-2(SREBP-2)、3-羟基3-甲基戊二酰辅酶A还原酶(HMGCR)、三磷酸腺苷结合盒转运体G5/G8(ABCG5/G8)表达的影响,探讨电针干预HPL的可能机制。方法:将30只SPF级雄性SD大鼠随机分为空白组、模型组、AMPK激动剂组、电针组和电针+AMPK抑制剂组,每组6只。采用高脂饲料喂养法制备HPL模型。造模完成后,电针组大鼠行电针干预,穴取双侧“丰隆”,予疏密波,频率2 Hz/100 Hz,电流1 mA,每次30 min,每天1次;AMPK激动剂组予以腹腔注射AMPK激动剂A-769662(30 mg/kg),每天2次;电针+AMPK抑制剂组于电针干预前30 min腹腔注射AMPK抑制剂化合物C(Compound C,25 mg/kg),每天1次。3组均每周连续干预5 d,干预4周。全自动生化分析仪检测大鼠血脂相关指标[血清胆固醇(TC)、三酰甘油(TG)、低密度脂蛋白胆固醇(LDL-C)、高密度脂蛋白胆固醇(HDL-C)及丙氨酸氨基转移酶(ALT)、天冬氨酸氨基转移酶(AST)含量];HE染色和油红O染色法观察大鼠肝脏组织形态;称重计算肝指数,ELISA法检测大鼠肝脏组织TC、TG含量及粪便TC、胆汁酸含量;Western blot法检测大鼠肝脏组织AMPK、m TOR蛋白磷酸化水平;免疫组化法检测大鼠肝脏组织SREBP-2、HMGCR和ACBG5/G8阳性表达。结果:造模后,模型组、AMPK激动剂组、电针组和电针+AMPK抑制剂组大鼠血清TC、TG和LDL-C含量均高于空白组(P<0.01);各组大鼠血清HDL-C含量比较,差异无统计学意义(P>0.05)。干预后,与空白组比较,模型组大鼠血清TC、TG、LDL-C、ALT、AST含量,肝指数,肝脏组织TC、TG含量及粪便TC、胆汁酸含量均升高(P<0.01);HE和油红O染色可见肝细胞排列紊乱,细胞内有明显的大泡性脂滴,明显脂质蓄积;肝脏组织磷酸化腺苷酸活化蛋白激酶(p-AMPK)蛋白表达、p-AMPK/AMPK比值降低(P<0.01),磷酸化哺乳动物雷帕霉素靶蛋白(p-mTOR)蛋白表达、p-mTOR/mTOR比值升高(P<0.01);肝脏组织SREBP-2、HMGCR、ABCG5、ABCG8阳性表达升高(P<0.01,P<0.05)。与模型组比较,AMPK激动剂组和电针组大鼠血清TC、TG、LDL-C、ALT、AST含量,肝指数及肝脏组织TC、TG含量降低(P<0.01),粪便TC、胆汁酸含量升高(P<0.05,P<0.01);HE染色和油红O染色可见肝细胞排列较规则,脂质蓄积明显减轻;肝脏组织p-AMPK蛋白表达、p-AMPK/AMPK比值升高(P<0.01),p-mTOR蛋白表达、p-mTOR/mTOR比值降低(P<0.01);肝脏组织SREBP-2、HMGCR阳性表达降低(P<0.01),ABCG5、ABCG8阳性表达升高(P<0.05,P<0.01)。与电针组比较,电针+AMPK抑制剂组大鼠血清TC、TG、LDL-C、ALT、AST含量,肝指数及肝脏组织TC、TG含量升高(P<0.05,P<0.01),粪便TC、胆汁酸含量降低(P<0.01);肝脏脂质蓄积加重;肝脏组织p-AMPK蛋白表达、p-AMPK/AMPK比值降低(P<0.01,P<0.05),p-m TOR蛋白表达、p-m TOR/m TOR比值升高(P<0.05,P<0.01);肝脏组织SREBP-2、HMGCR阳性表达升高(P<0.01),ABCG5、ABCG8阳性表达降低(P<0.01)。结论:电针“丰隆”穴可以改善HPL大鼠高血脂水平,其机制可能与调节AMPK/m TOR信号通路,抑制下游胆固醇合成相关分子SREBP-2、HMGCR表达及上调胆固醇外排分子ABCG5、ABCG8表达,从而减轻肝脏胆固醇堆积、增加胆固醇排泄有关。

关键词：高脂血症电针丰隆胆固醇代谢腺苷酸活化蛋白激酶/哺乳动物雷帕霉素靶蛋白

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