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A Review of Seasonal Hydrogen Storage Multi-Energy Systems Based on Temporal and Spatial Characteristics

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Journal of Renewable Materials 2021年第11期9卷 1823-1842页

作者： yuchen cao Yongwen Yang Xianglong Zhao Qifen Li The College of Energy and Mechanical Engineering Shanghai University of Electric PowerShanghai200090China

The temporal and spatial characteristics of seasonal hydrogen storage will play a very important role in the coupling of multi-energy *** essay believes that there are several key issues worth noting in the seasonal hydrogen storage coupled multi-energy system,namely,hydrogen storage methods,coupling models,and benefit *** research,this article innovatively divides seasonal hydrogen storage into two types:space transfer hydrogen storage technology and time transfer physical property conversion hydrogen storage *** sort out the two most typical seasonal hydrogen storage multi-energy system application scenarios and their hydrogen storage unit ***,it is shown that hydrogen storage methods should be selected according to different periods of time and regions,and the benefits should be evaluated before they can be used in *** review study is applicable to the process of coupling seasonal hydrogen storage in multi-energy *** energy is used as an intermediate energy link for the selection,evaluation and modeling of the optimal selection and rational utilization.

关键词： Temporal and spatial characteristics multi-energy system hydrogen storage technology modeling

Observation and verification of surface electrical explosion driven by radial-distributed pulsed current in laboratory lightning strike test

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High Voltage 2024年第1期9卷 137-149页

作者： Ruoyu Han yuchen cao Yakun Liu Xi Chen Ting Li Chen Li Pengfei Li State Key Laboratory of Explosion Science and Technology Beijing Institute of TechnologyBeijingChina School of Mechatronical Engineering Beijing Institute of TechnologyBeijingChina Department of Electrical Engineering Shanghai Jiaotong UniversityShanghaiChina Beijing Institute of Astronautical System Engineering BeijingChina Aerospace Research Institute of Materials and Processing Technology BeijingChina

The laboratory lightning test is essential for assessing the effectiveness of lightning strike protection(LSP).Particularly,direct lightning strike damage can be performed with pulsed current injection into the *** paper focuses on the dynamic process of arc plasma and shock wave behaviour in the vicinity of the‘strike’point.A rod-plate discharge load is built for testing aluminium and coated plate under 40-kA-level pulsed *** visualisation of the luminous discharge plasma and its flow field via high-speed photography(from different angles)is meticulously designed and implemented,synchronised with electro-physical *** results indicate some new mechanisms for lightning strike damage,apart from the impulse heat loading from the thermal *** transient current injection through the arc root concentrates on a thin skin layer(skin-depth effect),with the radial-attenuated current density,driving asynchronously electrical explosions on the plate *** inhomogeneous Joule heating of the plate leads to outwardly propagating phase transition and shock wave along the conductive *** addition,the electro-thermal instability is observed and regarded as the seed of irregular erosion *** information reveals two different plasma states of main discharge arc channel and adjacent surface electrical *** correspondence of the physical mechanism of electrical explosion and optical radiation is *** images for different regions depict erosion characteristics and summarise influencing factors,further confirming the mechanism *** research clarifies the role of skin-depth effect in transaction arc erosion for electrode,complements the electrical explosion theory with unevenly distributed current and helps optimise strategies of LSP.

关键词： electrical lightning radial

lncRNA SNHG4 enhanced gastric cancer progression by modulating miR-409-3p/CREB1 axis

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Oncology Research 2025年第1期33卷 185-198页

作者： ZHOUYANG CHENG yuchen HUA YANG cao JUN QIN Department of General Surgery Affiliated Hospital of Nantong UniversityNantong226001China Department of Surgery Affiliated Hospital of Nantong UniversityMedical School of Nantong UniversityNantong226001China Department of Operation Affiliated Hospital of Nantong UniversityNantong226001China

Objective:Gastric cancer(GC)is a globally common cancer characterized by high incidence and mortality *** in the molecular understanding of GC provide promising targets for GC diagnosis and *** non-coding RNAs(lncRNAs)and their downstream regulators are regarded to be implicated in the progression of multiple types of *** have shown that the lncRNA small nucleolar RNA host gene 4(SNHG4)serves as a tumor promoter in various malignancies,while its function in GC has yet to be ***,our study aimed to explore the role and underlying mechanism of SNHG4 in ***:We used qRT-PCR to analyze SNHG4 expression in GC tissues and ***-Meier analysis was used to assess the correlation between SNHG4 expression and the survival rate of GC *** function experiments such as CCK-8,BrdU,colony formation,flow cytometry analysis,and transwell were performed to explore the effects of SNHG4 on GC cell proliferation,apoptosis,cell cycle,migration,and *** also established xenograft mouse models to explore the effect of SNHG4 on GC tumor ***,dual luciferase reporter assay was used to verify the interaction between SNHG4 and miR-409-3p and between miR-409-3p and cAMP responsive element binding protein 1(CREB1).Results:The results indicated that SNHG4 was overexpressed in GC tissues and cell lines,and was linked with poor survival rate of GC ***4 promoted GC cell proliferation,migration,and invasion while inhibiting cell apoptosis and cell cycle arrest in *** in vivo experiment indicated that SNHG4 facilitated GC tumor ***,SNHG4 was demonstrated to bind to ***,CREB1 was directly targeted by *** assays demonstrated that miR-409-3p deficiency reversed the suppressive impact of SNHG4 knockdown on GC cell ***,miR-409-3p was also revealed to inhibit GC cell proliferation,migration,and invasion by targeting CREB1

关键词： Gastric cancer Small nucleolar RNA host gene 4(SNHG4) MicroRNA-409-3p(miR-409-3p) cAMP responsive element binding protein 1(CREB1)

Viabahn Stent Graft for Inadvertent Insertion of a Central Venous Catheter in the Subclavian Artery

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World Journal of Cardiovascular Diseases 2022年第7期12卷 397-402页

作者： yuchen cao Masaaki Koide Masakazu Watanabe Division of Cardiovascular Surgery Seirei Hamamatsu General Hospital Hamamatsu Japan

Subclavian artery (SCA) injuries associated with central venous catheter (CVC) insertion are uncommon yet lethal complications that typically require surgical treatment. This case report presents the case of a 94-year-old man with an iatrogenic right SCA injury resulting from a misplaced CVC. Computed tomography revealed the catheter piercing the right internal jugular vein to enter the right SCA and then reaching the aortic arch. Emergent endovascular treatment was performed, and a 13-mm × 50-mm self-expanding Viabahn stent graft (W.L. Gore & Associates, Flagstaff, AZ, USA) was placed via the right brachial artery. The misplaced catheter was successfully removed under simultaneous postdeployment balloon dilatation. This case highlights the utility of the Viabahn stent graft for iatrogenic right SCA injury caused by a misplaced CVC and presents some insights and tips for a safer procedure.

关键词： Central Venous Catheter Insertion Iatrogenic Subclavian Artery Injury Viabahn Stent Graft Endovascular Treatment Surgical Techniques

财务柔性是否会影响商业银行系统性风险?——基于信贷过度扩张与表外业务渠道

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系统工程理论与实践 2024年第5期44卷 1468-1484页

作者：顾海峰曹玉臣东华大学旭日工商管理学院上海200051

建立及完善商业银行财务柔性维度的监管机制,对于防控银行业系统性风险具有重要意义.文章选取2010–2021年中国上市银行季度数据,构建面板回归模型对财务柔性对银行系统性风险的影响及其作用机制进行了实证分析.研究表明:1)财务柔性对... 详细信息

建立及完善商业银行财务柔性维度的监管机制,对于防控银行业系统性风险具有重要意义.文章选取2010–2021年中国上市银行季度数据,构建面板回归模型对财务柔性对银行系统性风险的影响及其作用机制进行了实证分析.研究表明:1)财务柔性对银行系统性风险具有促进作用.相对于国有银行部门和经济下行期,财务柔性对银行系统性风险的促进作用仅存在于非国有银行部门和经济上行期.2)信贷过度扩张和表外业务在财务柔性与银行系统性风险的关系中承担着多重中介作用,财务柔性主要通过加剧信贷过度扩张与提高表外业务渠道来促进银行系统性风险,“财务柔性-信贷过度扩张/表外业务-银行系统性风险”的传导渠道均有效.3)资管新规与货币政策不确定性对两者关系具有非对称性调节作用.资管新规的实施会减弱财务柔性对银行系统性风险的促进作用,而货币政策不确定性提高则会加剧财务柔性对银行系统性风险的促进作用.4)区分财务柔性类型的进一步研究表明,现金柔性和债务柔性均对银行系统性风险具有促进作用.该成果将为提升银行财务柔性监管效率及防控中国银行业系统性风险提供重要的理论指导与决策参考.

关键词：财务柔性银行系统性风险信贷过度扩张表外业务

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石墨烯材料及其应用

石油化工 2016年第10期45卷 1149-1159页

作者：曹宇臣郭鸣明中国石化北京化工研究院北京100013

回顾了石墨烯的发现与发展,论述了石墨烯材料及其应用以及目前面临的机遇与挑战;简单地讨论了石墨烯材料的电学、力学和光学性能,重点介绍了最近发现的石墨烯材料的胶体化学性质、石墨烯无金属催化剂方面的原理及其应用;最后展望了石墨... 详细信息

回顾了石墨烯的发现与发展,论述了石墨烯材料及其应用以及目前面临的机遇与挑战;简单地讨论了石墨烯材料的电学、力学和光学性能,重点介绍了最近发现的石墨烯材料的胶体化学性质、石墨烯无金属催化剂方面的原理及其应用;最后展望了石墨烯有可能带来的更加光明的未来。

关键词：石墨烯材料石墨烯应用胶体化学性质无金属催化剂

采用二进制蚁群模糊神经网络的配电网故障分类方法

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高电压技术 2016年第7期42卷 2063-2072页

作者：孙鹏曹雨晨刘洋李静沈阳工业大学教育部特种电机与高压电器重点实验室电器新技术及应用研究所沈阳110870

配电网故障后的准确分类可以增强故障维修的针对性,因此针对配电网故障分类的研究对快速恢复供电具有重要意义。提出一种基于二进制蚁群算法(BACA)与模糊神经网络(FNN)的故障分类系统,该系统适用于中性点非有效接地的中低压配电系统。... 详细信息

配电网故障后的准确分类可以增强故障维修的针对性,因此针对配电网故障分类的研究对快速恢复供电具有重要意义。提出一种基于二进制蚁群算法(BACA)与模糊神经网络(FNN)的故障分类系统,该系统适用于中性点非有效接地的中低压配电系统。利用经验模态分解(EMD)提取故障后2 ms暂态信号中的高频成分,基于数理统计方法构造了推理系统的特征向量,研究了不同故障工况下的特征向量变化规律。利用二进制蚁群算法对模糊神经网络权值进行优化,克服了其搜索速度慢、易陷入局部极小值的缺点。在ATP-EMTP中根据实际情况构造了计算模型,利用计算结果对推理系统进行训练。测试样本与现场实验结果表明,所提出的故障分类方法的准确度高、适应性强。

关键词：谐振接地系统故障分类经验模态分解二进制蚁群算法模糊神经网络

Surgical Closure of Coronary Cameral Fistula Draining into the Left Ventricle via a “Fistula Lake”

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World Journal of Cardiovascular Diseases 2020年第8期10卷 545-549页

作者： yuchen cao Masaaki Koide Yoshifumi Kunii Minori Tateishi Kazumasa Watanabe Satoshi Okugi Yosuke Sakurai Risa Shimbori Division of Cardiovascular Surgery Seirei Hamamatsu General Hospital Hamamatsu Japan

A left-sided lesion of a coronary cameral fistula (CCF) is extremely rare. Surgical closure of the fistula is indicated when symptoms emerge or as a preventive strategy, while surgical approaches depend on the individual anatomical structures. In particular, a CCF forming a “fistula lake” with multiple inflow vessels is so unique that few studies have focused on the technique to close it. We report the successful management of a CCF originating from multiple coronary arteries and draining into the left ventricle via a “fistula lake” by ligation and clipping of associated communication tracts. On the postoperative coronary computed tomography angiography, the fistula lake and the small vessels entering it had all disappeared.

关键词： Coronary Cameral Fistula Fistula Lake Surgical Repair

基于“放管服”改革的我国营商环境指标体系构建与评价研究——以陕西省为例

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价格理论与实践 2021年第9期 124-127,203页

作者：张洽曹玉臣西安科技大学管理学院

科学评价营商环境是优化营商环境的前提和基础。本文利用二次加权因子分析和聚类分析方法分别从政务环境、市场环境、创新环境和公共服务四个维度选取指标,旨在构建一套系统的"放管服"改革背景下营商环境评价指标体系,并以陕西省下属的1... 详细信息

科学评价营商环境是优化营商环境的前提和基础。本文利用二次加权因子分析和聚类分析方法分别从政务环境、市场环境、创新环境和公共服务四个维度选取指标,旨在构建一套系统的"放管服"改革背景下营商环境评价指标体系,并以陕西省下属的10个地级市为例验证了指标选取的合理性。从评价结果显示:陕西省营商环境综合水平位列前三名的分别是西安市、汉中市和渭南市,整体上陕西省营商环境大致呈现三个梯队,分别为:领先型、表现良好型和综合落后型,且各梯队间发展不均衡。建议提高政企服务效率和质量、降低制度性交易成本,营造更加包容开放的创新环境,进一步完善社会公共服务设施。

关键词： “放管服”改革营商环境政务环境市场环境创新环境