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Normal values of shear wave velocity in liver tissue of healthy children measured using the latest acoustic radiation force impulse technology

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World Journal of Clinical Cases 2019年第21期7卷 3463-3473页

作者： Pei-Xuan Sun yu-yang tong Jing Shi Huan Zhang Shi-Jian Liu Jun Du Diagnostic Imaging Center Shanghai Children’s Medical CenterShanghai Jiao Tong University School of MedicineShanghai 200127China Department of Ultrasound Shanghai Cancer CenterFudan UniversityShanghai 200032China Department of Clinical Epidemiology and Biostatistics Pediatric Translational Medicine InstituteShanghai Children’s Medical CenterShanghai Jiao Tong University School of MedicineShanghai 200127China

BACKGROUND Several studies have demonstrated the feasibility and effectiveness of using ultrasound elastography to assess liver tissue *** touch imaging quantification(VTIQ)based on acoustic radiation force impulse imaging has been developed as a latest and noninvasive method for assessing liver stiffness in *** To determine the standard value in healthy children,and to identify possible factors that might influence the VTIQ *** With the ethical approval,202 children between 1 month and 15 years old were included in this *** of them had any liver or systematic *** children had a normal ultrasound scan and normal body mass index(BMI)*** subjects were divided into four age and BMI *** effects of gender,age,liver lobe,measurement depth,and BMI on liver elasticity were *** A significant correlation was found between age and shear wave velocity(SWV)*** measurement depths of 1.5 cm and 2.0 cm in the left lobe,there were significant differences among the age *** values were significantly negatively correlated with the measurement ***,liver lobe,and BMI showed no significant effect on the SWV *** and BMI may influence the quality of the *** VTIQ is a noninvasive technique that is feasible to measure liver stiffness in *** afore-mentioned velocity value obtained utilizing VTIQ method could be used as reference value for normal liver stiffness in children.

关键词： Acoustic radiation force impulse Virtual touch imaging quantification Liver stiffness Shear wave velocity

Al-enabled properties distribution prediction for high-pressure die casting Al-Si alloy

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Advances in Manufacturing 2024年第3期12卷 591-602页

作者： yu-tong yang Zhong-yuan Qiu Zhen Zheng Liang-Xi Pu Ding-Ding Chen Jiang Zheng Rui-Jie Zhang Bo Zhang Shi-Yao Huang Key Laboratory for Light-Weight Materials Nanjing Tech UniversityNanjing211816People’s Republic of China Xi’an Jiaotong-Liverpool University Suzhou215000JiangsuPeople’s Republic of China Materials Academy JITRI Suzhou215100JiangsuPeople’s Republic of China Key Laboratory for Light-weight Materials Nanjing University of Science and TechnologyNanjing210009People’s Republic of China College of Materials Science and Engineering Chongqing UniversityChongqing400044People’s Republic of China Collaborate Innovation Center of Steel Technology University of Science and Technology BeijingBeijing100083People’s Republic of China Chongqing Millison Technologies Inc. Chongqing401321People’s Republic of China

High-pressure die casting(HPDC)is one of the most popular mass production processes in the automotive industry owing to its capability for part ***,the nonuniform distribution of mechanical properties in large-sized HPDC products adds complexity to part property ***,a methodology for property prediction must be *** characterization,simulation technologies,and artificial intelligence(AI)algorithms were ***,an image recognition technique was employed to construct a temperature-microstructure characteristic model for a typical HPDC Al7Si0.2Mg ***,a porosity/microstructure-mechanical property model was established using a machine learning method based on the finite element method and representative volume element model ***,the computational results of the casting simulation software were mapped with the porosity/microstructure-mechanical property model,allowing accurate prediction of the property distribution of the HPDC Al-Si *** AI-enabled property distribution model developed in this study is expected to serve as a foundation for intelligent HPDC part design platforms in the automotive industry.

关键词： Artificial intelligence(AI) Properties prediction High-pressure die-casting(HPDC) Image recognition Machine learning

Causes and Solutions of Administrative Departments＇ Economic Policy Ineffectiveness

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International Journal of Technology Management 2013年第6期 99-101页

作者： tong yu yang Qin Nanchang Institute of Technology and Lecturer JiangxiChina

Administrative department, as the focus of national political system reform, is associated with optimization and adjustment of state institutions and plays a macro-control role in socialist economic development. Administrative departments, just the ＂government＂, conduct economic control function to promote the sustainable development of social economic causes. The thesis firstly introduces administrative departments＇ era effect and causes of administrative departments＇ economic policy ineffectiveness. And on the basis of these, the thesis comes up with some solutions to solve economic ineffectiveness, hoping that it would be helpful to relevant researches.

关键词： administrative organs economic policy ineffectiveness causes solutions

The Transformation of Government Economic Functions in Public Economic Management

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International Journal of Technology Management 2013年第5期 108-110页

作者： tong yu yang Qin Nanchang Institute of Technology and Lecturer JiangxiChina

Public economics is a science of studying government economic behaviors, and an interdiscipline of politics and economics. As China is at the primary stage of socialism and the development of various domestic causes is still in a period of exploration, it is very important for the reform of the socialist modernization to strengthen domestic administrative management. Society is the subject of national reform and development in the long run, and thus maintaining the stability of domestic social order is not only the prerequisite for the long-term survival and development of China, but also the key requirement of ensuring people to live and work in peace and contentment. This thesis, first of all, introduces the management concept of public economy and the necessity of government＇s involvement in supervising economy. And on the basis of these, the thesis put forward the direction of transforming government economic functions and several precautions that should be noticed in government economic behaviors.

关键词： public economic management government economic fimctions transformation

Metal-organic frameworks with dinuclear metal centers for synergistically boosting CO2 photoreduction

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Science China Chemistry 2025年第1期68卷 201-208页

作者： Hui-Feng Wang Wen-Jie Shi yu-Xin yang Bao-Xia Dong tong-Bu Lu Di-Chang Zhong School of Chemistry and Chemical Engineering Yangzhou University Institute for New Energy Materials and Low Carbon Technologies School of Materials Science and Engineering Tianjin University of Technology

Dinuclear metal synergistic catalysis （DMSC） has been proved powerful in boosting CO2reduction,while this has not been achieved in heterogeneous catalysts with long-range order *** this study,we,by introduction of metal catalytic centers into an indium-based metal-organic framework （MOF）,obtained a series of isostructural In-MOFs,including three MOFs with mononuclear metal catalytic center （M-In）,three MOFs with dinuclear homometallic catalytic centers （MM-In）,and three MOFs with dinuclear heterometallic catalytic centers (MM’-In,M/M’=Co（II）,Ni（II）,Zn（II）).It was found that all these MOFs can serve as catalysts for photochemical CO2reduction to *** with M-In,the catalytic activities of MM-In were obviously enhanced,and that of MM’-In was further significantly *** example,the CO yield of Co Zn-In reaches a record value of 12,700μmol g-1h-1,which is 4.0,8.1,9.4,and 18.6-fold higher than that of Co Co-In,Zn Zn-In,Co-In,and Zn-In,***,the catalytic activities of Co Ni-In and Ni Zn-In also show different fold increase than those of corresponding dinuclear homometallic and mononuclear metallic *** results of control experiments and theoretical calculation reveal that the higher catalytic activities of MM-In over M-In can be ascribed to the DMSC effect,and the higher catalytic activity of MM’-In over MM-In can be ascribed to the strengthened DMSC *** work reveals the relationship between DMSC effect and bimetal centers in CO2reduction,which provides new insights into the DMSC and paves a new way to design highly active catalysts for photochemical CO2reduction.

关键词： metal-organic frameworks dinuclear metal centers synergistic catalysis CO2 reduction photocatalysis

The Lyman-alpha Solar Telescope(LST) for the ASO-S mission——Ⅲ. data and potential diagnostics

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Research in Astronomy and Astrophysics 2019年第11期19卷 79-92页

作者： Li Feng Hui Li Bo Chen Ying Li Roberto Susino yu Huang Lei Lu Bei-Li Ying Jing-Wei Li Jian-Chao Xue yu-tong yang Jie Hong Jian-Ping Li Jie Zhao Wei-Qun Gan Yan Zhang Key Laboratory of Dark Matter and Space Astronomy Purple Mountain ObservatoryChinese Academy of SciencesNanjing 210033China Changchun Institute of Optics FineMechanics and PhysicsChinese Academy of SciencesChangchun 130033China INAF-Turin Astrophysical Observatory via Osservatorio 2010025 Pino TorineseItaly School of Astronomy and Space Science University of Science and Technology of ChinaHefei 230026China School of Astronomy and Space Science Nanjing UniversityNanjing 210023China Department of Computer Science and Technology Nanjing UniversityNanjing 210023China

The Lyman-alpha Solar Telescope(LST)is one of the three payloads onboard the Advanced Space-based Solar Observatory(ASO-S)*** aims at imaging the Sun from the disk center up to 2.5 R⊙targeting solar eruptions,particularly coronal mass ejections(CMEs),solar flares,prominences/filaments and related phenomena,as well as the fast and slow solar *** most prominent speciality of LST is the simultaneous observation of the solar atmosphere in both Lyαand white light(WL)with high temporospatial resolution both on the solar disk and the inner *** observations in the Lyαline together with traditional WL observations will provide us with many new insights into solar eruptions and solar *** consists of a Solar Corona Imager(SCI)with a field of view(FOV)of 1.1–2.5 R⊙,a Solar Disk Imager(SDI)and a full-disk White-light Solar Telescope(WST)with an identical FOV up to 1.2 R⊙.SCI has a dual waveband in Lyα(121.6±10 nm)and in WL(700±40 nm),while SDI works in the Lyαwaveband of 121.6±7.5 nm and WST works in the violet narrow-band continuum of 360±2.0 *** produce high quality science data,careful ground and in-flight calibrations are *** present our methods for different calibrations including dark field correction,flat field correction,radiometry,instrumental polarization and optical *** on the data calibration,definitions of the data levels and processing procedures for the defined levels from raw data are *** physical diagnostics offer key ingredients to understand ejecta and plasma flows in the inner corona,as well as different features on the solar disk including flares,filaments,***,we are making efforts to develop various tools to detect the different features observed by LST,and then to derive their physical parameters,for example,the electron density and temperature of CMEs,the outflow velocity of the solar wind,and the hydrogen density and mass flows of *** observations and data analyses wi

关键词： Sun:coronal mass ejections(CMEs) Sun:flares Sun:solar wind techniques:calibration

ICA Based Speckle Filtering for Target Extraction in SAR Images Using Adaptive Space Separation

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Journal of Shanghai Jiaotong university(Science) 2008年第5期13卷 528-532页

作者：李昱彤周越杨磊 Institute of Image Processing and Pattern Recognition Shanghai Jiaotong University

A novel approach based on independent component analysis (ICA) for speckle filtering and target extraction of synthetic aperture radar (SAR) images is proposed using adaptive space separation with weighted information entropy (WIE) incorporated. First the basis and the independent components are respectively obtained by ICA technique, and WIE of the image is computed; then based on the threshold computed from function T-WIE (threshold versus weighted-information-entropy), independent components are adaptively separated and the bases are classified accordingly. Thus, the image space is separated into two subspaces: "clean" and "noise". Then, a proposed nonlinear operator ABO is applied on each component of the 'clean' subspace for further optimization. Finally, recovery image is obtained reconstructing this subspace and target is easily extracted with binarisation. Note that here T-WIE is an interpolated function based on several representative target SAR images using proposed space separation algorithm.

关键词： target extraction speckle filtering synthetic aperture radar (SAR) independent component analysis (ICA) adaptive space separation weighted information entropy (WIE)

The Lyman-alpha Solar Telescope (LST) for the ASO-S mission——Ⅰ. Scientific objectives and overview

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Research in Astronomy and Astrophysics 2019年第11期19卷 23-32页

作者： Hui Li Bo Chen Li Feng Ying Li yu Huang Jing-Wei Li Lei Lu Jian-Chao Xue Bei-Li Ying Jie Zhao yu-tong yang Wei-Qun Gan Cheng Fang Ke-Fei Song Hong Wang Quan-Feng Guo Ling-Ping He Bo Zhu Cheng Zhu Lei Deng Hai-Chao Bao Cai-Xia Cao Zhong-Guang yang Key Laboratory of Dark Matter and Space Astronomy Purple Mountain ObservatoryChinese Academy of SciencesNanjing 210034China School of Astronomy and Space Science University of Science and Technology of ChinaHefei 230026China Changchun Institute of Optics FineMechanics and PhysicsChinese Academy of SciencesChangchun 130033China School of Astronomy and Space Science Nanjing UniversityNanjing 210023China Xi’an Institute of Optics and Precision Mechanics Chinese Academy of SciencesXi’an 710119China Innovation Academy for Microsatellites Chinese Academy of SciencesShanghai 201210China

As one of the payloads for the Advanced Space-based Solar Observatory(ASO-S)mission,the Lyman-alpha(Lyα)Solar Telescope(LST)is aimed at imaging the Sun and the inner corona up to 2.5 R⊙(mean solar radius)in both the Lyα(121.6 nm)and visible wavebands with high temporo-spatial resolution,mainly targeting solar flares,coronal mass ejections(CMEs)and filaments/*** observations allow us to trace solar eruptive phenomena from the disk center to the inner corona,to study the relationships between eruptive prominences/filaments,solar flares and CMEs,to explore the dynamical processes and evolution of solar eruptions,to diagnose solar winds,and to derive physical parameters of the solar *** is actually an instrument suite,which consists of a Solar Disk Imager(SDI),a Solar Corona Imager(SCI),a White-light Solar Telescope(WST)and two Guide Telescopes(GTs).This is the first paper in a series of LST-related *** this paper,we introduce the scientific objectives,present an overview of the LST payload and describe the planned *** detailed design and data along with potential diagnostics are described in the second(Paper II)and third(Paper III)papers,respectively,appearing in this issue.

关键词： Sun flares-Sun coronal mass ejections(CMEs)-Sun filaments,prominences-Sun corona-Sun chromosphere-Sun UV radiation

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3D打印技术在中小学教学中的应用研究

现代教育技术 2013年第12期23卷 16-19页

作者：童宇阳深圳市南山区丽湖中学广东深圳518055

2013年伊始,3D打印技术突然成为人们关注的热点,由工业、建筑、军事等应用领域逐渐走向民用领域.教育领域,特别是基础教育领域应用3D打印技术还处于起步、探索阶段.文章介绍了什么是3D打印技术;3D打印技术在本质上是多媒体技术的延伸,... 详细信息

2013年伊始,3D打印技术突然成为人们关注的热点,由工业、建筑、军事等应用领域逐渐走向民用领域.教育领域,特别是基础教育领域应用3D打印技术还处于起步、探索阶段.文章介绍了什么是3D打印技术;3D打印技术在本质上是多媒体技术的延伸,是虚拟现实技术的延伸,它拓展了人的感觉和知觉,促进了人的思维能力的进一步发展;列举了3D打印技术在中小学学科教学中应用的几个案例;3D打印技术目前面临的一些诸如普及慢、成本高、速度慢等局限性.最后指出,3D打印技术作为第三次工业革命的重要标志之一,未来4～5年,必将普遍走进中小学课堂,必将对现有教学产生深刻的影响和变革.

关键词： 3D打印三维模型中小学教学应用