检索结果-南通市图书馆

Plasma-etching on monolithic MOFs-based MIM filter boosted chemical sensing

Nano Research 2024年第4期17卷 2800-2807页

作者： Jianxi liu li Feng zhihuan li Yang Wu Feng Zhou Yadong Xu Research&Development Institute Northwestern Polytechnical University in ShenzhenShenzhen 518057China State Key Laboratory of Solidification Processing Center of Advanced Lubrication and Seal MaterialsSchool of Materials Science and EngineeringNorthwestern Polytechnical UniversityXi’an 710072China Yantai Zhongke Research Institute of Advanced Materials and Green Chemical Engineering Shandong Laboratory of Advanced Materials and Green Manufacturing at YantaiYantai 264006China State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical PhysicsChinese Academy of SciencesLanzhou 730000China

Metal-insulator-metal(MIM)cavity as a lithography-free structure to control light transmission and reflection has great potential in the field of optical ***,the dense top metal layer of the MIM prohibits any external medium from entering the dielectric insulation layer,which limits the application of the cavity in the sensing ***,we demonstrate a series of monolithic metal-organic frameworks(MOFs)based MIM cavities,which are treated by plasma etching to provide channels for chemical diffusion and to advance *** modulate the bandwidth of the MIM filters by controlling the MOF thickness as insulator *** plasma-etching is applied to build channels on the top metal layer without altering their saturation and brightness for chemical sensing *** etching time regulates the number and size of channels on the top metal *** behavior is demonstrated on the plasma-etched MOFs-based MIM cavity when external chemicals diffuse in the *** addition,we generate patterned structure of the MOFs-based MIM cavity via plasma-mask method,which can transfer to different substrates and produce a controllable structure color change for chemical *** MIM cavity may promote the advancement and applications of structural color in security imaging,color display,information anticounterfeiting,and color printing.

关键词： metal-organic frameworks(MOFs) spin-coating metal-insulator-metal filter patterns sensing

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

共生·共享:中缅边境片马口岸多民族社区和谐互嵌的发展路径探析

引用

原生态民族文化学刊 2024年第1期16卷 32-39,153页

作者：李智环贵州大学历史与民族文化学院贵州大学民族文化与区域发展研究中心、铸牢中华民族共同体意识研究基地贵阳550025

滇西北中缅边境的片马口岸,虽地理位置相对偏远、闭塞,但在当地政府与各族群众的共同努力下,经过半个多世纪,基本形成了多民族和谐互嵌的社区环境与社会结构。其中,经济共生随着互嵌格局的深化而产生、发展,文化共享则是各民族在交往交... 详细信息

滇西北中缅边境的片马口岸,虽地理位置相对偏远、闭塞,但在当地政府与各族群众的共同努力下,经过半个多世纪,基本形成了多民族和谐互嵌的社区环境与社会结构。其中,经济共生随着互嵌格局的深化而产生、发展,文化共享则是各民族在交往交流交融过程中由地域认同升华而成的精神共同体。经济共生与文化共享的有机结合,是边境多民族社区稳定进步、民族团结局面形成的科学发展路径。

关键词：边境多民族互嵌共生共享

来源：

维普期刊数据库

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

Accurate prediction of myopic progression and high myopia by machine learning

引用

Precision Clinical Medicine 2024年第1期7卷 14-20页

作者： Jiahui li Simiao Zeng zhihuan li Jie Xu Zhuo Sun Jing Zhao Meiyan li Zixing Zou Taihua Guan Jin Zeng Zhuang liu Wenchao Xiao Ran Wei Hanpei Miao Ian Ziyar Junxiong Huang Yuanxu Gao Yangfa Zeng Xing-Tao Zhou Kang Zhang Guangzhou Women and Children's Medical Center Guangzhou Medical UniversityGuangzhou 510120China Guangzhou National Laboratory Guangzhou 510o0oChina Zhuhai International Eye Center of the First Affiliated Hospital of Faculty of Medicine Macao University of Science and TechnologyZhuhai 519000China Beijing Institute of Ophthalmology Beijing Tongren Eye CenterBeijing Tongren HospitalCapital Medical UniversityBeijing 100069China Key Laboratory of Myopia Ministry of HealthShanghai Key Laboratory of Visual Impairment and RestorationDepartment of OphthalmologyEye InstituteEye and EarNoseand Throat HospitalFudan UniversityShanghai 200031China DongguanPeople's Hospital The First School of Clinical MedicinelSouthern Medical UniversityDongguan 523059China State Key Laboratory of Ophthalmology Zhongshan Ophthalmic CenterSun Yat-sen UniversityGuangzhou 510060China Wenzhou Eye Hospital and Institute for Advanced Study on Eye Health and Diseases Wenzhou Medical UniversityWenzhou 32500oChina

Background Myopia is a leading cause of visual impairment in Asia and ***,accurately predicting the progression of myopia and the high risk of myopia remains a *** study aims to develop a predictive model for the development of *** We first retrospectively gathered 612530 medical records from five independent cohorts,encompassing 227543 patients ranging from infants to young ***,we developed a multivariate linear regression algorithm model to predict the progression of myopia and the risk of high *** The model to predict the progression of myopia achieved an R^(2) value of 0.964 vs a mean absolute error(MAE)of 0.119D[95%confidence interval(CI):0.119,1.146]in the internal validation *** demonstrated strong generalizability,maintaining consistent performance across external validation sets:R^(2)=0.950 vs MAE=0.119D(95%CI:0.119,1.136)in validation study 1,R^(2)=0.950 vs MAE=0.121D(95%CI:0.121,1.144)in validation study 2,and R^(2)=0.806 vs MAE=−0.066D(95%CI:−0.066,0.569)in the Shanghai Children Myopia *** the Beijing Children Eye Study,the model achieved an R^(2) of 0.749 vs a MAE of 0.178D(95%CI:0.178,1.557).The model to predict the risk of high myopia achieved an area under the curve(AUC)of 0.99 in the internal validation set and consistently high area under the curve values of 0.99,0.99,0.96 and 0.99 in the respective external validation *** Our study demonstrates accurate prediction of myopia progression and risk of high myopia providing valuable insights for tailoring strategies to personalize and optimize the clinical management of myopia in children.

关键词： myopia progression machine learning prevention precision medicine

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

滴线附近原子核的衰变和结构研究

引用

原子核物理评论 2024年第1期41卷 86-93页

作者：倪磊金瑜华辉李智焕北京大学物理学院和核物理与核技术国家重点实验室北京100871 中国工程物理研究院材料研究所四川绵阳621907

滴线区原子核奇异衰变和结构研究对人们认识原子核新规律及发展新理论起到了关键的作用。近些年来相关研究取得了重要进展,但是还有很多新现象和新规律有待人们去认识。以质子滴线外^(16)Ne原子核的双质子衰变为例,介绍了不变质量法在... 详细信息

滴线区原子核奇异衰变和结构研究对人们认识原子核新规律及发展新理论起到了关键的作用。近些年来相关研究取得了重要进展,但是还有很多新现象和新规律有待人们去认识。以质子滴线外^(16)Ne原子核的双质子衰变为例,介绍了不变质量法在质子衰变研究中的应用,得到了^(16)Ne基态和第一激发态的衰变能与动量关联。与利用飞行衰变法得到的结果进行了比较,说明了运用完整运动学测量的不变质量法可以更准确地确定共振态的衰变信息。假设^(16)Ne基态具有不同半衰期,通过模拟生成不变质量谱,研究了原子核寿命不同对不变质量谱准确度的影响。结果表明对于寿命较短的原子核不变质量法有效且可靠,对于寿命较长的原子核飞行衰变法则更为合适。

关键词：滴线不变质量法飞行衰变法质子衰变 ^(16)Ne

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

四质子非束缚核^(18)Mg的实验研究

引用

原子核物理评论 2024年第1期41卷 163-171页

作者：金瑜倪磊华辉李智焕牛晨阳吴鸿毅北京大学物理学院和核物理与核技术国家重点实验室北京100871 中国工程物理研究院材料研究所四川绵阳621907

对滴线外原子核自发核子发射现象的实验研究,有助于人们探寻滴线外的新核素,揭示非束缚原子核的奇特结构和衰变特性,进而探索原子核稳定性的极限、理解同位旋极端不对称条件下核子间的相互作用。文章将介绍我们对质子滴线外的新镁同位素... 详细信息

对滴线外原子核自发核子发射现象的实验研究,有助于人们探寻滴线外的新核素,揭示非束缚原子核的奇特结构和衰变特性,进而探索原子核稳定性的极限、理解同位旋极端不对称条件下核子间的相互作用。文章将介绍我们对质子滴线外的新镁同位素^(18)Mg的四质子衰变现象的实验研究。首先介绍实验使用的放射性束流线和探测器设置,给出了束流粒子与衰变产物的粒子鉴别结果。然后重点介绍了闪烁光纤探测阵列及其数据分析方法。结合该阵列在本次实验中的探测效率和位置分辨表现,模拟结果证明了该阵列对于提高不变质量谱分辨的必要性。最后利用不变质量法,由^(14)O+4p五体符合测量事件重建得到了^(18)Mg的衰变能谱。Gamow壳模型理论计算可以较好地描述实验结果,表明连续谱耦合效应对于滴线外原子核的结构存在显著影响。实验测得的^(18)Mg的2_(1)^(+)态激发能比传统幻数核^(20)Mg更高,表明在极端丰质子的Mg同位素中可能出现了N=8的壳减弱或某些奇特的核结构效应。

关键词：滴线新核素四质子衰变 ^(18)Mg 不变质量法 N=8壳

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

Photonic crystals constructed by isostructural metal-organic framework films

引用

Nano Research 2023年第7期16卷 9569-9576页

作者： zhihuan li Jianxi liu Haoze Wu Jiao Tang Zhongyang li Yadong Xu Feng Zhou Weimin liu State Key Laboratory of Solidification Processing Center of Advanced Lubrication and Seal MaterialsSchool of Materials Science and EngineeringNorthwestern Polytechnical UniversityXi’an 710072China Electronic Information School Wuhan UniversityWuhan 430072China State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical PhysicsChinese Academy of SciencesLanzhou 730000China

Metal-organic framework(MOF)-on-MOF structure allows stacking various types of MOFs with different lattice constants for molecule sieving or ***,the multilayered MOFs-based optical devices have incoherent interference due to the lattice-mismatch at the interface and refractive index(RI)*** paper reports isostructural MOFs-based photonic crystals(PCs)designed by stacking Bragg bilayers of lattice-matched MOFs thin films through a layer-by-layer assembly *** nanoparticles(NPs)were homogenously encapsulated in some layers of the MOFs(HKUST-1@NPs)to tune their intrinsic RI during the spraying coating *** isostructural MOFs-based PCs were constructed on a large scale by sequentially spraying coating the low RI layer of HKUST-1 and high RI layer of HKUST-1@NPs to form the desired number of Bragg bilayers.X-ray photoelectron spectroscopy(XPS)depth profiling proved the Bragg bilayers and the homogenous encapsulation of nanomaterials in certain layers of *** of the PCs was tailored by the thickness and RI of the Bragg bilayers,which had a great consistent with finite difference time domain(FDTD)***,reflectivity of the isostructural MOFs-based PCs was up to 96%.We demonstrated high detection sensitivity for chemical sensing on the PCs,which could be advanced by encapsulating different types of nanomaterials and designing wide-band isostructural MOFs-based PCs.

关键词： metal-organic frameworks(MOFs) MOF on MOF liquid phase epitaxy(LPE) hybrid photonic crystals(PCs) specific sensing

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

The landscape of UBE2S in hepatocellular carcinoma: Prognostic significance, immuno-oncology feature and drug response

引用

Genes & Diseases 2023年第2期10卷 363-365页

作者： lipeng Qiu Yue Wang zhihuan li Zhigang Tu Hanqing liu School of life Sciences Jiangsu UniversityZhenjiangJiangsu 212013China School of Pharmacy Jiangsu UniversityZhenjiangJiangsu 212013China

Hepatocellular carcinoma (HCC) is the third leading cause of cancer-related death worldwide.1 E2 ubiquitin conjugating enzymes (UBE2) are potential therapeutic targets in tumors arising from genomic instability and tumor microenvironment (TME).2,3 UBE2S, an important UBE2, has demonstrated strong oncogenic activities in various malignant cancers, including HCC. However, a comprehensive study regarding its role in HCC is still absent, and its association with immunology and drug response of HCC is still unclear. In this study, we conducted a pan-cancer analysis of UBE2S expression and prognosis, carried out enrichment analysis of UBE2S-associated genes, and analyzed association between UBE2S expression and HCC microenvironment, stemness and drug response. Collectively, our results demonstrated that UBE2S expression was significantly increased in multiple types of cancer, including HCC, and harbors prognostic values for HCC. Potential function of UBE2S involves modulation of ubiquitin mediated proteolysis and cell cycle progression. Furthermore, in HCC, UBE2S expression was positively correlated with TME infiltration, microsatellite instability (MSI), DNA methylation, stemness and drug response. These findings highlighted the possible pivotal roles of UBE2S in HCC prognosis, precision immunotherapy and drug response.

关键词： drug prognosis cancer

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

顾客不文明行为的研究述评及展望

引用

全国流通经济 2024年第11期 14-17页

作者：林韵轩陈心怡李传倩李俊凯李治寰海南大学海南海口571127

随着服务业的发展,服务行业的规则意识、服务意识越来越强,如何合理应对顾客不文明行为并将其负面影响最小化的问题也越来越受到行业的重视。顾客不文明行为不仅对服务人员带来了影响,而且一定程度上影响了组织的运行。本文基于对国内... 详细信息

随着服务业的发展,服务行业的规则意识、服务意识越来越强,如何合理应对顾客不文明行为并将其负面影响最小化的问题也越来越受到行业的重视。顾客不文明行为不仅对服务人员带来了影响,而且一定程度上影响了组织的运行。本文基于对国内外相关文献的梳理与分析,首先厘清了顾客不文明的起源,辨析了其内涵,阐述了顾客不文明行为的衡量标准及测量方式;其次,分析了顾客不文明行为的影响因素和后果;最后,总结实践启示并提出未来展望。

关键词：顾客不文明行为服务业组织

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

β-decay studies of the neutron-rich ^(18,21)N isotopes

引用

Science China(Physics,Mechanics & Astronomy) 2011年第S1期54卷 53-60页

作者： HUA Hui, li zhihuan, YE Yanlin, JIANG DongXing, LOU Jianling, li XiangQing & XU FuRong School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China Peking University School of Physics and State Key Laboratory of Nuclear Physics and Technology Beijing China (GRID:grid.11135.37) (ISNI:***)

The β-decay studies of neutron-rich 18,21N isotopes have been performed using β-n, β-γ, and β-n-γ coincidence methods. The 18,21N ions were produced by the fragmentation of the 22Ne and 26Mg beams, respectively, on a thick beryllium target. The time of flight of the emitted neutrons following the β-decay of 18,21N was measured by a neutron detector system with wide energy detection range and low-energy detection threshold. In addition, several clover germanium detectors were used to detect the β-delayed γ-rays. The half-lives of the β-decays of 18N and 21N were determined to be (619±2) ms and (82.9±7.5) ms, respec tively. Several new β-delayed neutron groups were observed with a total branching ratio of (6.98±1.46)% and (90.5±4.2)% for 18N and 21N, respectively. The level schemes of 18O and 21O were deduced. The experimental Gamow-Teller β-decay strengths of 18N and 21N to these levels were compared with the shell model calculations.

关键词： β-delayed neutron decay 18 21N neutron detector system branching ratio Gamow-Teller strength

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

Determination of the cluster spectroscopic factor of the 10.3 MeV state in ^(12)Be

引用

Science China(Physics,Mechanics & Astronomy) 2014年第9期57卷 1613-1617页

作者： YANG ZaiHong YE Yanlin li zhihuan LOU Jianlin XU FuRong PEI JunCheng TIAN ZhengYang li KuoAng SUN YeLei CHEN Jie li Jing JIANG Wei YANG Biao CHEN SiDong liU Qiang ZANG Hongliang FENG Jun YIN ZheWei State Key Laboratory of Nuclear Physics and Technology School of Physics Peking University

From an inelastic excitation and breakup experiment with a12Be beam at 29 MeV/u,a large4He+8He cluster decay width of 1.1(2)MeV is determined for a state at an excitation energy of 10.3 MeV and with a spin parity of 0+.By using the R-matrix analysis,a cluster spectroscopic factor of 0.53(10)is extracted from the cluster partial width,providing a strong support for the clustering structure in12Be.A specially designed zero-degree telescope played an essential role in the present experiment and has been demonstrated to be a promising tool in future studies of the molecular-like resonances near the cluster separation threshold.

关键词： cluster decay width R-matrix

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：