检索结果-南通市图书馆

Design of novel RGO/2D strip-like ZIF-8/DMAOP ternary hybrid structure towards high-efficiency microwave absorption, active and passive anti-corrosion, and synergistic antibacterial performance

引用

Nano Research 2024年第3期17卷 913-926页

作者： Tanlin Chen Yingrui Tian Zihao Guo Yao Chen qing qi Fanbin Meng Key Laboratory of Advanced Technologies of Materials(Ministry of Education) School of Materials Science and EngineeringSouthwest Jiaotong UniversityChengdu 610031China Shenzhen Institute of Southwest Jiaotong University Shenzhen 518000China

In order to meet the requirements of the marine environment for microwave absorption(MA)materials,we put forward the strategy of constructing multi-functional composite materials,which integrate microwave absorption,anti-corrosion,and antibacterial ***,graphene oxide(GO)was used as a template to induce the growth of zeolitic imidazolate framework-8(ZIF-8),simultaneously as a two-dimensional(2D)nanocontainers to load corrosion inhibitors to achieve pH-responsive and self-healing ***,quaternary ammonium salt(dimethyl octadecyl(3-trimethoxylsilyl propyl)ammonium chloride(DMAOP))and sodium ascorbate(VCNa)were introduced to achieve synergistic antibacterial activity and the reduction of *** 2D strip-like structure of ZIF-8 was due to the confined growth induced by the electrostatic attraction between ZIF-8 and GO *** as-obtained reduced GO(RGO)/ZIF-8/DMAOP5 exhibited excellent microwave absorption(MA)properties,with a minimum reflection loss(RL)value of-47.08 dB at 12.73 GHz when the thickness was 2.8 ***,the effective absorption bandwidth reached 6.84 *** soaking in 3.5%NaCl solution for 35 days,the RGO/ZIF-8/DMAOP5-0.7%coating still achieved an impedance value of 4.585×107Ω·cm^(2) and a protective efficiency of 99.994%,providing superior anti-corrosion *** addition,fantastic antibacterial activity was obtained,with the antibacterial rates of RGO/ZIF-8/DMAOP_(10) reaching 99.39%and 100%against Escherichia coli and Staphylococcus *** work could open new avenues towards the development of a new generation of multifunctional MA materials.

关键词： two-dimensional(2D)strip-like zeolitic imidazolate framework-8(ZIF-8) microwave absorption active and passive anti-corrosion antibacterial

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Unraveling role of double-exchange interaction in electrochemical water oxidation by external magnetic field

引用

Rare Metals 2024年第1期43卷 289-297页

作者： Jun Li Jun-Ming Li Hong Hong Dong-Xue Liu qing-qi Cao Dun-Hui Wang National Laboratory of Solid State Microstructures and Jiangsu Provincial Key Laboratory for Nanotechnology Nanjing UniversityNanjing 210093China School of Electronics and Information Hangzhou Dianzi UniversityHangzhou 310018China

Double-exchange(DE) interaction plays an important role in electrocatalytic oxygen evolution reaction(OER).However,precise achievement of DE interaction often requires foreign dopants or vacancy engineering,leading to destabilization of the catalysts and deterioration of *** contrast,the utilization of environmentally friendly,contactless,and continuously adjustable magnetic fields to study the OER process is profitable to avoid aforementioned interference factors and further elucidate the direct relationship_(0.5)between DE interaction and OER ***,by using cobalt hydroxide carbonate(Co(OH)(CO_(3))·xH_(2)O,CoHC) nanostructures as a proof-of-concept study,external magnetic fields are carefully implemented to verify the role of DE interaction during water oxidation *** studies reveal that external magnetic fields effectively enhance the reaction rate of the catalyst,the overpotential decreases from 386 to 355 mV(100 mA·cm^(-2)),while Tafel slopes drastically decline from 93 to 67 mV·dec^(-1)(1.0 T).Moreover,magnetic field increment exhibits robust *** in situ Raman and impedance measurements under external field,it can be found that magnetic field promotes the electron migration between Co^(2+) and Co^(3+) in the CoHC catalysts with the assistance of DE interactions,thus boosting the OER efficiency.

关键词： Magnetic field Double-exchange(DE)interaction Electrocatalysis Oxygen evolution reaction(OER) Cobalt hydroxide carbonate

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Non-contact gaseous microplasma electrode as anode for electrodeposition of metal and metal alloy in molten salt

引用

Chinese Chemical Letters 2024年第4期35卷 166-169页

作者： Junhan Luo qi qing Liqin Huang Zhe Wang Shuang Liu Jing Chen Yuexiang Lu Institute of Nuclear and New Energy Technology Tsinghua UniversityBeijing 100084China The MOE Key Laboratory of Resources and Environmental System Optimization College of Environmental Science and EngineeringNorth China Electric Power UniversityBeijing 102206China Nuclear Research Institute for Future Technology and Policy Seoul National UniversitySeoul 08826Republic of Korea

Microplasma based on glow discharge could act as a non-contact gaseous electrode and has attracted much attention in both fundamental research and application. Herein, with microplasma as the anode,the electrodeposition process of a series of metal and metal alloys in molten salt has been systemically studied. Four metal cations with different valence states, silver(Ag~+), nickel(Ni^(2+)), copper(Cu^(2+)), and iron(Fe^(3+)), could all be reduced on the solid cathode with high current efficiency and the corresponding metal products were of high purity. The electrodeposition of aluminum-lanthanum(Al-Ln) alloy on the aluminum cathode was also successfully carried out with microplasma as the anode, and the same alloy was obtained by using the conventional anode electrode. These results indicated that microplasma anode based on non-contact direct-current(DC) glow discharge is a promising electrode to be applied in molten salt electrolysis.

关键词： Microplasma Anode Molten salt Electrodeposition Al-Ln alloy

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Enhanced hydrogen evolution reaction in FePt film with remanence due to decrease in domain walls

引用

Rare Metals 2024年第3期43卷 1108-1115页

作者： Hong Hong Dong-Xue Liu Jun Li Jun-Ming Li Li-qian Wu Bo Yang qing-qi Cao Dun-Hui Wang National Laboratory of Solid State Microstructures Collaborative Innovation Center of Advanced MicrostructuresJiangsu Provincial Key Laboratory for NanotechnologySchool of PhysicsNanjing UniversityNanjing210093China Hangzhou Dianzi University Hangzhou310018China Key Laboratory for Anisotropy and Texture of Materials(Ministry of Education) School of Material Science and EngineeringNortheastern UniversityShenyang110819China

As an effective strategy to improve the properties of electrocatalysts,magnetic field-assisted electrocatalytic water splitting has attracted increasing attention ***,the corresponding enhancements mostly depend on the exertion of an external magnetic field during electrochemical reactions,which results in a high cost of industrial production,and makes the magnetic field manipulation of electrocatalysis become a challenging *** this work,instead of the external magnetic field,a bias magnetic field is self-supplied by the remanence state of a ferromagnetic electrocatalyst of *** to the assistance of this bias magnetic field,the FePt film in the remanence state shows the overpotential of 229 mV during hydrogen evolution reaction,which is much lower than that in its demagnetization state(283 mV).Our findings demonstrate that the remanence in ferromagnetic electrocatalysts can improve the catalytic performance,which is attributed to the decrease in domain walls.

关键词： Remanence Magnetic domains Electrocatalysis Hydrogen evolution reaction(HER)

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

AGK2 pre-treatment protects against thioacetamide-induced acute liver failure via regulating the MFN2-PERK axis and ferroptosis signaling pathway

引用

Hepatobiliary & Pancreatic Diseases International 2024年第1期23卷 43-51页

作者： qing-qi Zhang qian Chen Pan Cao Chun-Xia Shi Lu-Yi Zhang Lu-Wen Wang Zuo-Jiong Gong Department of Infectious Diseases Renmin Hospital of Wuhan UniversityWuhan 430060China

Background:Acute liver failure(ALF)is an unpredictable and life-threatening critical *** pathological characteristic of ALF is massive necrosis of hepatocytes and lots of inflammatory cells infiltration which may lead to multiple organ ***:Animals were divided into 3 groups,normal,thioacetamide(TAA,ALF model)and TAA+*** L02 cells were divided into 5 groups,normal,TAA,TAA+mitofusin 2(MFN2)-siRNA,TAA+AGK2,and TAA+AGK2+MFN2-siRNA *** liver histology was evaluated with hematoxylin and eosin staining,inositol-requiring enzyme 1(IRE1),activating transcription factor 6β(ATF6β),protein kinase R(PKR)-like endoplasmic reticulum kinase(PERK)and phosphorylated-PERK(p-PERK).C/EBP homologous protein(CHOP),reactive oxygen species(ROS),MFN2 and glutathione peroxidase 4(GPX4)were measured with Western blotting,and cell viability and liver chemistry were also *** endoplasmic reticulum membranes(MAMs)were measured by ***:The liver tissue in the ALF group had massive inflammatory cell infiltration and hepatocytes necrosis,which were reduced by AGK2 *** comparison to the normal group,apoptosis rate and levels of IRE1,ATF6β,p-PERK,CHOP,ROS and Fe2+in the TAA-induced ALF model group were significantly increased,which were decreased by AGK2 *** levels of MFN2 and GPX4 were decreased in TAA-induced mice compared with the normal group,which were enhanced by AGK2 *** with the TAA-induced L02 cell,apoptosis rate and levels of IRE1,ATF6β,p-PERK,CHOP,ROS and Fe2+were further increased and levels of MFN2 and GPX4 were decreased in the MFN2-siRNA ***2 pre-treatment decreased the apoptosis rate and levels of IRE1,ATF6β,p-PERK,CHOP,ROS and Fe2+and enhanced the protein expression of MFN2 and GPX4 in MFN2-siRNA treated L02 *** observation showed that level of MAMs was promoted in the AGK2 pre-treatment group when compared with the TAA-induced gr

关键词： SIRT2 inhibitor AGK2 Acute liver failure MFN2 Ferroptosis

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Clinical efficacy and pathological outcomes of transanal endoscopic intersphincteric resection for low rectal cancer

引用

World Journal of Gastrointestinal Oncology 2024年第3期16卷 933-944页

作者： Zhi-Wen Xu Jing-Tao Zhu Hao-Yu Bai Xue-Jun Yu qing-qi Hong Jun You Department of Gastrointestinal Oncology Surgery The First Affiliated Hospital of Xiamen UniversitySchool of MedicineXiamen UniversityXiamen 361000Fujian ProvinceChina

BACKGROUND Transanal endoscopic intersphincteric resection(ISR)surgery currently lacks sufficient clinical research and *** To investigate the clinical effectiveness of transanal endoscopic ISR,in order to promote the clinical application and development of this *** This study utilized a retrospective case series *** and pathological data of patients with lower rectal cancer who underwent transanal endoscopic ISR at the First Affiliated Hospital of Xiamen University between May 2018 and May 2023 were *** patients underwent transanal endoscopic ISR as the surgical *** conducted this study to determine the perioperative recovery status,postoperative complications,and pathological specimen charac-teristics of this group of *** This study included 45 eligible patients,with no perioperative *** overall incidence of early complications was 22.22%,with a rate of 4.44%for Clavien-Dindo grade≥III *** patients(4.4%)developed anastomotic leakage after surgery,including one case of grade A and one case of grade *** pathological examination confirmed negative circumferential resection margins and distal resection margins in all *** mean distance between the tumor lower margin and distal resection margin was found to be 2.30±0.62 *** transanal endoscopic ISR procedure consistently yielded high quality pathological *** Transanal endoscopic ISR is safe,feasible,and provides a clear anatomical *** is associated with a low incidence of postoperative complications and favorable pathological outcomes,making it worth further research and application.

关键词： Intersphincteric resection Transanal Rectal cancer Complications Endoscopic

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Cetuximab combined with chemotherapy for simultaneous esophageal squamous cell carcinoma and colon adenocarcinoma:A case report

引用

World Journal of Clinical Cases 2024年第15期12卷 2649-2654页

作者： Xin-Xin Luo Yu-Xuan Du qi-qing Zhang Lin Zhang Shu-Ying Zeng Zhi-Hong Yu Peng Shen Zheng-Quan Feng The Second School of Clinical Medicine Zhejiang Chinese Medical UniversityHangzhou310053Zhejiang ProvinceChina Department of Oncology Tongde Hospital of Zhejiang ProvinceHangzhou 310012Zhejiang ProvinceChina Department of Medical Oncology The First Affiliated HospitalMedical College of Zhejiang UniversityHangzhou 310003Zhejiang ProvinceChina

BACKGROUND Multiple primary carcinomas(MPCs)are defined as two or more independent primary cancers that occur simultaneously or sequentially in the same *** MPCs are rarer than solitary cancers or metachronous *** diagnoses of synchronous MPCs and the choice of treatment are critical for successful outcomes in these *** SUMMARY A 64-year-old patient presented with dysphagia,without obvious cause.A diagnosis of synchronous esophageal squamous cell carcinoma and colon adenocarcinoma with liver metastasis was confirmed based on examination and laboratory *** multi-disciplinary consultations,combination chemotherapy(a 3-wk cycle with oxaliplatin 212 mg administered on day 1 and capecitabine 1.5 g twice daily on days 1-14)and esophageal cancer radiotherapy were *** on the results of genetic testing,we switched to a regimen of leucovorin+fluorouracil+oxaliplatin and cetuximab regimen for 8 ***,capecitabine and bevacizumab were administered until the most recent follow-up,at which the tumor remained *** Successful cetuximab chemotherapy treatment provides a reference for the nonoperative and homogeneous treatment of different pathological types of synchronous MCPs.

关键词： Synchronous multiple primary carcinoma Esophageal squamous cell carcinoma Colon adenocarcinoma Cetuximab Chemotherapy Case report

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

人物形象、叙事话语和创新传播:新主流电影中的国家形象塑造与传播研究

引用

电影评介 2024年第4期 8-17页

作者：齐青李丹仪上海师范大学影视传媒学院

近年来,新主流电影这一类型及概念不断被提起,虽然目前新主流电影仍未有规范及明确化的定义,但学界和业界相关讨论层出不穷。新主流电影的前身主旋律电影常以革命或历史题材为主,弘扬国家主流意识形态和讴歌人性,而新主流电影是在主旋... 详细信息

近年来,新主流电影这一类型及概念不断被提起,虽然目前新主流电影仍未有规范及明确化的定义,但学界和业界相关讨论层出不穷。新主流电影的前身主旋律电影常以革命或历史题材为主,弘扬国家主流意识形态和讴歌人性,而新主流电影是在主旋律电影的审美基础上进一步拓展而来的一种类型范式。

关键词：主旋律电影新主流电影叙事话语创新传播类型范式历史题材审美基础人物形象

来源：

维普期刊数据库博看期刊

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

交叠影响域理论下小学生数学学习力的问题诊断及对策

引用

教学与管理 2024年第15期 67-71页

作者：戚晴晴陈碧芬浙江师范大学教育学院浙江金华321000

学会学习是现代人必备的基本素质,数学学习力是学生可持续发展能力的重要体现之一。以交叠影响域理论为视角,运用文献资料、逻辑分析等方法探析小学生的数学学习力现状,发现小学生数学学习力总体水平偏低,主要呈现出数学知识零散,活动... 详细信息

学会学习是现代人必备的基本素质,数学学习力是学生可持续发展能力的重要体现之一。以交叠影响域理论为视角,运用文献资料、逻辑分析等方法探析小学生的数学学习力现状,发现小学生数学学习力总体水平偏低,主要呈现出数学知识零散,活动经验匮乏;忽视思维养成,方法运用不足;价值认识单一,缺乏学习兴趣问题。进一步揭示问题产生的原因:家校教育目标冲突,阻碍数学学习力的形成;家校信息沟通不畅,限制数学学习力的发展;家校职责定位模糊,妨碍数学学习力的维持。家校共育是破解小学生数学学习力存在问题的有效策略之一,具体对策包括坚持正面引导,激发数学学习积极性;畅通家师联系,启发数学思维与方法;扩展家校互动,建构数学学习共同体。

关键词：小学数学数学学习力交叠影响域理论家校社协同家校共育

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

共享停车随机冲突建模与控制研究

引用

数学的实践与认识 2024年第1期54卷 71-79页

作者：肖伟魏庆琦重庆交通大学经济与管理学院重庆400074

针对城市共享停车中业主与外来车辆停车的泊位冲突管理问题,刻画了随机环境下业主返回车数和外来车辆离场数均为泊松分布时,其冲突的联合分布泊松差形式,构建了机会约束下的共享停车冲突管理模型.模型旨在通过合理设置保留泊位数和共享... 详细信息

针对城市共享停车中业主与外来车辆停车的泊位冲突管理问题,刻画了随机环境下业主返回车数和外来车辆离场数均为泊松分布时,其冲突的联合分布泊松差形式,构建了机会约束下的共享停车冲突管理模型.模型旨在通过合理设置保留泊位数和共享停车结束时间,在控制停车冲突的基础上,确保共享停车企业获得最大收益,设计了遗传人工鱼群算法对优化模型进行求解.最后,采用数值算例探讨了业主入场速率、外来车辆出场速率、冲突控制阈值和共享停车泊位总数等参数对保留泊位数、共享停车结束时间,以及共享停车企业收益与成本的影响.

关键词：城市交通共享停车机会规划停车冲突遗传人工鱼群算法

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：