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Detection of SARS-CoV-2 based on artificial intelligence-assisted smartphone:A review
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作者 yunxin li Jinghui Zhang +5 位作者 Jisen Chen Feng Zhu Zhiqiang liu Peng Bao Wei Shen Sheng Tang 《Chinese Chemical Letters》 SCIE CAS CSCD 2024年第7期25-34,共10页
In recent years,the application of smartphone in various fields has received great attention,and it has become a promising tool in virus detection,data processing and data exchange.During the rapid spread of COVID-19 ... In recent years,the application of smartphone in various fields has received great attention,and it has become a promising tool in virus detection,data processing and data exchange.During the rapid spread of COVID-19 around the world,many traditional detection methods have been combined with smartphone to assist in the analysis and detection of the novel coronavirus(SARS-CoV-2),including electrochemistry,fluorescence and colorimetry.With the gradual development of artificial intelligence(AI),the combination of AI and smartphone to analyze SARS-CoV-2 was also the focus of research.Based on the summary of the traditional methods combined with smartphone to detect SARS-CoV-2 virus,in addition to AI-based data processing,AI algorithms are also employed for SARS-CoV-2 detection itself.This review discussed both strategies and focused on the application of the former.The combination of AI algorithm and smartphone to detect SARS-CoV-2 has high accuracy,which is more conducive to meeting the needs of portable detection.In addition,the classification of SARS-CoV-2 virus samples in biological fluids such as blood and saliva was also discussed.Finally,this paper briefly discussed the limitations of using smartphone analysis to detect SARS-CoV-2,as well as the prospect and future development of virus detection.In conclusion,the detection methods based on smartphone and AI algorithms show great potential in the detection of SARS-CoV-2 and can be a valuable complement to traditional analysis methods. 展开更多
关键词 COVID-19 SARS-CoV-2 virus Detection method Smartphone analysis Artificial intelligence
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基于二维半导体的垂直晶体管 被引量:1
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作者 乐志凯 刘潇 +2 位作者 李运鑫 刘丽婷 刘渊 《科学通报》 EI CAS CSCD 北大核心 2023年第22期2901-2910,共10页
二维半导体具有原子级薄的体厚度和表面无悬挂键的特点,是实现下一代晶体管微缩的重要候选材料之一.超短沟道的二维水平结构晶体管已通过多种方法成功制备,但通常需要复杂的设备和高精度的制造工艺,并且难以微缩至亚10 nm或亚5 nm的沟... 二维半导体具有原子级薄的体厚度和表面无悬挂键的特点,是实现下一代晶体管微缩的重要候选材料之一.超短沟道的二维水平结构晶体管已通过多种方法成功制备,但通常需要复杂的设备和高精度的制造工艺,并且难以微缩至亚10 nm或亚5 nm的沟道长度.垂直晶体管是一种电流自上而下输运的新型器件结构,其中器件的栅极长度或者沟道长度取决于半导体的厚度而非光刻精度.因此,二维半导体在垂直晶体管中展现出了独特的应用前景.本文综述了基于二维半导体构建垂直晶体管的进展,包括二维垂直晶体管的基本结构、工作机制与器件性能等. 展开更多
关键词 二维半导体 垂直晶体管 器件结构 器件性能
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东西部扶贫协作的理论逻辑与实践探索:杭州市—恩施州例证 被引量:1
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作者 李云新 张文惠 《中国公共政策评论》 2020年第1期50-70,共21页
东西部扶贫协作是实施精准扶贫战略、打赢脱贫攻坚战、全面建成小康社会的重要方略。实施二十多年来,我国东西部扶贫协作的顶层设计逐渐完备,结对关系逐步优化,参与主体走向多元共治,扶贫模式转向"造血式扶贫"。东西部扶贫协... 东西部扶贫协作是实施精准扶贫战略、打赢脱贫攻坚战、全面建成小康社会的重要方略。实施二十多年来,我国东西部扶贫协作的顶层设计逐渐完备,结对关系逐步优化,参与主体走向多元共治,扶贫模式转向"造血式扶贫"。东西部扶贫协作深嵌于国家治理体系的结构之中,具有合法性、效率和组织网络等多重制度逻辑。本研究基于杭州市—恩施州扶贫协作的具体案例,试图通过协作机制、协作主体、协作内容、协作效益等维度来呈现东西部扶贫协作的实践样态和真实图景。东西部扶贫协作虽然取得了积极进展和良好效果,但是仍然存在着深度协作与精准对接困难、社会化协作程度低、协作扶贫的高质量发展受制约、项目管理机制不健全等实践困境。东西部扶贫协作必须在全面深化改革和国家治理现代化进程中寻求制度优化和长效发展之道。 展开更多
关键词 国家治理 精准扶贫 东西部扶贫协作 府际关系 区域协同发展
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Removal and fluorescence detection of antibiotics from wastewater by layered double oxides/metal-organic frameworks with different topological configurations
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作者 Zhiqiang liu Qiang Gao +8 位作者 Wei Shen Meifeng Xu yunxin li Weilin Hou Hai-Wei Shi Yaozuo Yuan Erwin Adams Hian Kee Lee Sheng Tang 《Chinese Chemical Letters》 SCIE CAS 2024年第8期401-405,共5页
Owing to the serious potential side-effects on the environment and human health,the rapid detection and removal of antibiotics have become an important research focus.In this work,four zinc-based metal-organic framewo... Owing to the serious potential side-effects on the environment and human health,the rapid detection and removal of antibiotics have become an important research focus.In this work,four zinc-based metal-organic frameworks(MOFs)with different functional groups,i.e.,Zn-MOF,Zn-MOF-CH_(3),Zn-MOF-NO_(2),Zn-MOF-COOH,were utilized for the construction of LDO/MOF composite materials with a nickel-iron-cobalt-based layered double oxide,NiFeCo-LDO.The results showed that the LDO/MOF composites not only had high sensitivity in detecting sulfonamide and quinolone antibiotics,but also had an appreciable ability to adsorb them from wastewater.The maximum adsorption capacities of all the four types of LDO@Zn-MOFs to all antibiotics can at least reach 150 mg/g,and the limits of detection in relation to all four antibiotics were at least as low as 100μg/L.Our work suggested the dual-function extraction performance can be attributed to the synergistic effects between the LDO and the MOFs.Moreover,the strong ferromagnetism derived from the LDO provided great convenience for the separation and regeneration of the LDO/MOF composites. 展开更多
关键词 Light-emitting metal-organic frameworks Layered double oxides Antibiotics Topological configurations Fluorescence detection
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