检索结果-南通市图书馆

在线全文

学校读者我要写书评

暂无评论

共振隧穿二极管THz辐射源研究进展

太赫兹科学与电子信息学报 2023年第5期21卷 579-585,600页

作者：彭雨欣孟雄孟得运江苏大学物理与电子工程学院江苏镇江212000

太赫兹技术被称为“改变未来世界十大技术之一”,对基础科学研究、国民经济发展和国防建设具有重要意义,尤其在未来6G通信方面举足轻重。太赫兹波源是整个太赫兹技术研究的基础,也是太赫兹应用系统的核心部件。近年来,共振隧穿二极管(R... 详细信息

太赫兹技术被称为“改变未来世界十大技术之一”,对基础科学研究、国民经济发展和国防建设具有重要意义,尤其在未来6G通信方面举足轻重。太赫兹波源是整个太赫兹技术研究的基础,也是太赫兹应用系统的核心部件。近年来,共振隧穿二极管(RTD)型太赫兹波源因体积小,质量轻,易于集成,室温工作,功耗低等特点受到广泛关注,为太赫兹波推广应用开辟了新的途径。通过文献分析,本文从器件材料技术、主要工艺及器件性能等方面对InP基与GaN基RTD太赫兹振荡器的发展进行评述,并探讨了InP基与GaN基RTD太赫兹振荡器件的研究方向。

关键词：共振隧穿二级管太赫兹波源磷化铟氮化镓

基于结构变动度及灰色关联分析的某医院甲状腺癌手术患者住院费用研究

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

中国医院管理 2024年第2期44卷 83-86页

作者：彭宇欣朱致旭严俊涛刘静陈英耀魏艳复旦大学公共卫生学院·国家卫生健康委员会卫生技术评估重点实验室(复旦大学) 上海200032 海南医学院管理学院海南海口571199

目的分析甲状腺癌手术患者住院费用的结构变化情况及其变化原因,为合理控制医药费用提供参考依据,使得甲状腺癌手术患者住院费用结构更趋于合理化。方法运用结构变动度及灰色关联分析法对样本医院2017—2022年的甲状腺癌手术患者住院费... 详细信息

目的分析甲状腺癌手术患者住院费用的结构变化情况及其变化原因,为合理控制医药费用提供参考依据,使得甲状腺癌手术患者住院费用结构更趋于合理化。方法运用结构变动度及灰色关联分析法对样本医院2017—2022年的甲状腺癌手术患者住院费用变化情况及关联情况进行定量分析。结果2017—2022年样本医院甲状腺癌手术患者住院费用呈下降趋势,药品费、耗材费占比较大;耗材费和治疗费总体均呈正向变动,药品费和诊断费总体均呈负向变动,护理费和一般医疗服务类费用虽呈正向变动,但变动不明显;6年间影响甲状腺癌手术患者例均住院费用关联度位于前两位的是药品费和耗材费。结论甲状腺癌手术患者住院费用结构趋于合理,但仍有较大改进空间。建议继续加强对药品、医用耗材等方面的管控,同时明确技术劳务、物资耗材等项目的价值构成,进一步优化住院费用结构。

关键词：甲状腺癌住院费用结构变动度灰色关联分析

Recent advances in exploring new blood-based biomarkers for the early diagnosis of gastric cancer

在线全文

学校读者我要写书评

暂无评论

Science China Chemistry 2025年第1期 35-45页

作者： Xinyu peng Qian Ma Da Han School of Life Science Shanghai University Institute of Molecular Medicine Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine State Key Laboratory of Oncogenes and Related Genes Renji Hospital School of Medicine Shanghai Jiao Tong University Department of Research and Development Intellinosis Biotechnologies Co.Ltd.

Gastric cancer(GC) is a prevalent and lethal malignancy worldwide, and the 5-year survival rate is less than 30%. The absence of distinctive symptoms often leads to late-stage diagnosis, contributing to a grim prognosis. Early detection is pivotal for improving the survival rates and outcomes of GC patients. Traditional diagnostic methods, including gastroscopy and histopathological examination, are restricted in the early diagnosis of GC. Conventional protein biomarkers, such as carcinoembryonic antigen(CEA), carbohydrate antigen 19-9(CA19-9), and carbohydrate antigen 72-4(CA72-4), exhibit insufficient sensitivity and specificity for GC screening, which diminishes their clinical value. Recently, novel circulating biomarkers, such as circulating tumor cells(CTCs), circulating tumor cell DNA(ct DNA), and circulating free RNA(cf RNA), have emerged as promising candidates in the burgeoning field of liquid biopsy due to their superior sensitivity and specificity. This review focuses on the latest research on blood-based biomarkers for GC diagnosis and examines the clinical potentials and challenges associated with these emerging biomarkers.

关键词：

同方期刊数据库

Advances in genotypic antimicrobialresistance testing: a comprehensive review

在线全文

学校读者我要写书评

暂无评论

Science China Life Sciences 2025年第01期 130-143页

作者： Boheng Duan Xianjun Zeng Junping peng Huan Kui College of Nanchang University Department of Imaging The Second Affiliated Hospital of Nanchang University NHC Key Laboratory of Systems Biology of Pathogens National Institute of Pathogen BiologyChinese Academy of Medical Sciences & Peking Union Medical College Key Laboratory of Respiratory Disease Pathogenomics Chinese Academy of Medical Sciences & Peking Union Medical College Key Laboratory of Pathogen Infection Prevention and Control (Ministry of Education) State Key Laboratory of Respiratory Health and MultimorbidityNational Institute of Pathogen BiologyChinese Academy of Medical Sciences & Peking Union Medical College

Antimicrobial resistance(AMR) represents a substantial threat to global public health, complicating the treatment of common infections and leading to prolonged illness and escalated healthcare expenses. To effectively combat AMR, timely and accurate detection is crucial for AMR surveillance and individual-based therapy. Phenotypic antibiotic resistance testing(AST) has long been considered the gold standard in clinical applications, serving as the foundation for clinical AMR diagnosis and optimized therapy. It has significantly contributed to ensuring patients′ health and the development of novel antimicrobials. Despite advancements in automated culture-based AST technologies,inherent limitations impede the widespread use of phenotypic AST in AMR surveillance. Genotypic AST technologies offer a promising alternative option, exhibiting advantages of rapidity, high sensitivity, and specificity. With the continuous advancement and expanding applications of genotypic AST technologies, such as microfluidics, mass spectrometry, and high-resolution melting curve analysis, new vigor has been injected into the development and clinical implementation of genotypic AST technologies. In this narrative review, we discuss the principles, applications, and advancements of emerging genotypic AST methods in clinical settings. The comprehensive review aims to highlight the significant scientific potential of emerging genotypic AST technologies in clinical AMR diagnosis, providing insights to enhance existing methods and explore novel approaches.

关键词：

同方期刊数据库

Boosting bidirectional sulfur conversion enabled by introducing boron-doped atoms and phosphorus vacancies in Ni2P for lithium-sulfur batteries

在线全文

学校读者我要写书评

暂无评论

Journal of Energy Chemistry 2025年第1期100卷 760-769页

作者： Lin peng Yu Bai Hang Li Meixiu Qu Zhenhua Wang Kening Sun Advanced Research Institute of Multidisciplinary Science Beijing Institute of Technology Beijing Key Laboratory of Chemical Power Source and Green Catalysis School of Chemistry and Chemical Engineering Beijing Institute of Technology

Lithium-sulfur （Li-S） batteries have gained great attention due to the high theoretical energy density and low cost,yet their further commercialization has been obstructed by the notorious shuttle effect and sluggish redox ***,we supply a strategy to optimize the electron structure of Ni2P by concurrently introducing B-doped atoms and P vacancies in Ni2P （Vp-B-Ni2P）,thereby enhancing the bidirectional sulfur *** study indicates that the simultaneous introduction of B-doped atoms and P vacancies in Ni2P causes the redistribution of electron around Ni atoms,bringing about the upward shift of d-band center of Ni atoms and effective d-p orbital hybridization between Ni atoms and sulfur species,thus strengthening the chemical anchoring for lithium polysulfides （LiPSs） as well as expediting the bidirectional conversion kinetics of sulfur ***,theoretical calculations reveal that the incorporation of B-doped atoms and P vacancies in Ni2P selectively promotes Li2S dissolution and nucleation ***,the Li-S batteries with Vp-B-Ni2P-separators present outstanding rate ability of 777 m A h g-1at 5 C and high areal capacity of 8.03 mA h cm-2under E/S of 5μL mg-1and sulfur loading of 7.20 mg *** work elucidates that introducing heteroatom and vacancy in metal phosphide collaboratively regulates the electron structure to accelerate bidirectional sulfur conversion.

关键词： Lithium sulfur batteries

Increase in the variability of terrestrial carbon uptake in response to enhanced future ENSO modulation

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Atmospheric and Oceanic Science Letters 2025年第1期18卷 32-38页

作者： Younong Li Li Dan Jing peng Qidong Yang Fuqiang Yang Key Laboratory of Regional Climate-Environment for Temperate East Asia Institute of Atmospheric PhysicsChinese Academy of SciencesBeijingChina Key Laboratory of Atmospheric Environment and Processes in the Boundary Layer over the Low-Latitude Plateau Region Department of Atmospheric ScienceYunnan UniversityKunmingChina

El Niño-Southern Oscillation(ENSO)is a major driver of climate change in middle and low latitudes and thus strongly influences the terrestrial carbon cycle through land-air *** the ENSO modulation and carbon flux variability are projected to increase in the future,but their connection still needs further *** investigate the impact of future ENSO modulation on carbon flux variability,this study used 10 CMIP6 earth system models to analyze ENSO modulation and carbon flux variability in middle and low latitudes,and their relationship,under different scenarios simulated by CMIP6 *** results show a high consistency in the simulations,with both ENSO modulation and carbon flux variability showing an increasing trend in the *** higher the emissions scenario,especially SSP5-8.5 compared to SSP2-4.5,the greater the increase in *** flux variability in the middle and low latitudes under SSP2-4.5 increases by 30.9%compared to historical levels during 1951-2000,while under SSP5-8.5 it increases by 58.2%.Further analysis suggests that ENSO influences mid-and low-latitude carbon flux variability primarily through *** occurrence may potentially be attributed to the increased responsiveness of gross primary productivity towards regional temperature fluctuations,combined with the intensified influence of ENSO on land surface temperatures.

关键词： Carbon variability ENSO modulation CMIP6 models

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

单家村煤矿通风系统优化研究

山东煤炭科技 2020年第11期38卷 86-89页

作者：彭玉鑫颜亚民魏军军山东裕隆矿业集团有限公司单家村煤矿通防科山东曲阜273100 山东裕隆矿业集团有限公司单家村煤矿山东曲阜273100

针对单家村煤矿通风路线长、井巷风阻高、通风压力损失大、矿井需风量增大等问题,通过Ventsim三维辅助通风模拟软件建立了井下通风仿真模型,并对整体通风系统进行了网络解算和动态模拟,提出了三种优化降阻方案,从降阻效果方面进行对比分... 详细信息

针对单家村煤矿通风路线长、井巷风阻高、通风压力损失大、矿井需风量增大等问题,通过Ventsim三维辅助通风模拟软件建立了井下通风仿真模型,并对整体通风系统进行了网络解算和动态模拟,提出了三种优化降阻方案,从降阻效果方面进行对比分析,有效解决了单家村煤矿通风系统所存在的问题。

关键词：三维建模 Ventsim软件通风系统优化

基于EQ-5D-5L量表的甲状腺结节/肿瘤患者生命质量及其影响因素分析

在线全文

学校读者我要写书评

暂无评论

中国卫生经济 2023年第10期42卷 50-54页

作者：朱致旭彭宇欣严俊涛陈英耀魏艳复旦大学公共卫生学院上海200032 国家卫生健康委员会卫生技术评估重点实验室(复旦大学) 上海200032

目的:评价甲状腺结节/肿瘤患者生命质量现状并分析其影响因素,为改善甲状腺结节/肿瘤患者的生命质量提供参考建议。方法:使用欧洲五维健康(EQ-5D-5L)量表并采用线上调查的形式对符合纳入排除标准的甲状腺结节/肿瘤患者进行调查,采用单... 详细信息

目的:评价甲状腺结节/肿瘤患者生命质量现状并分析其影响因素,为改善甲状腺结节/肿瘤患者的生命质量提供参考建议。方法:使用欧洲五维健康(EQ-5D-5L)量表并采用线上调查的形式对符合纳入排除标准的甲状腺结节/肿瘤患者进行调查,采用单因素方差分析和多水平线性回归分析影响因素。结果:甲状腺结节/肿瘤患者健康效用值均值为(0.708±0.298),健康状况自评问卷与视觉模拟标尺评分(EQ Visual analogue scale,EQ-VAS)均值为(65.45±27.82)分,性别、年龄、户籍类型、婚姻状态、家庭平均年收入、颈部暴露史、甲状腺癌家族史、结节/肿瘤性质对甲状腺结节/肿瘤患者健康效用值和EQ-VAS量表的影响,差异具有统计学意义(P<0.05)。结论:甲状腺结节/肿瘤患者生命质量偏低,应综合考虑影响生命质量的各种因素,提升患者生理机能和心理弹性,改善甲状腺结节/肿瘤患者的生命质量。

关键词：甲状腺结节/肿瘤患者 EQ-5D-5L 生命质量

在线全文

学校读者我要写书评

暂无评论

服务设计视角下技术接受理论研究热点分析

设计 2020年第9期33卷 88-91页

作者：宗婕聪吴群彭宇新浙江理工大学艺术与设计学院

挖掘服务设计领域技术接受理论研究热点及前沿趋势。本研究利用了知识图谱工具Cite Space对2009-2018年期间,在Web of Science(SCI-E和SSCI)发表的1506篇文献,进行文献计量分析。经分析,可得出未来服务设计视角下技术接受理论研究趋势... 详细信息

挖掘服务设计领域技术接受理论研究热点及前沿趋势。本研究利用了知识图谱工具Cite Space对2009-2018年期间,在Web of Science(SCI-E和SSCI)发表的1506篇文献,进行文献计量分析。经分析,可得出未来服务设计视角下技术接受理论研究趋势主要在于移动服务领域,尤其是移动银行及电子商务领域。通过分析,本研究着重讨论了当前该领域的知识结构、研究热点和研究趋势,为服务设计视角下技术接受理论应用及其相关领域之研究提供参考。

关键词：服务设计技术接受理论知识图谱可视化分析共被引分析 CiteSpace