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Quantitative Parameters Analysis for Prenatally Echocardiographic Diagnosis of Atrioventricular Septal Defects

Congenital Heart Disease 2023年第3期18卷 387-397页

作者： Xiaoxue Zhou tingyang yang Ye Zhang Yanping Ruan Jiancheng Han Xiaowei Liu Ying Zhao Xiaoyan Gu Tingting Liu Hairui Wang Yihua He Maternal-Fetal Consultation Center of Congenital Heart Disease Department of EchocardiographyBeijing Anzhen HospitalCapital Medical UniversityBeijingChina State Key Laboratory of Software Development Environment Beihang UniversityBeijingChina

Background:Atrioventricular septal defects(AVSDs)are screened and diagnosed usually rely on the imaging characteristics of fetal echocardiography(FE).However,diagnosis on images is heavily depended on sonographers’experience and the quantitative data are rarely ***:This study aimed to realize the prenatal diagnosis of AVSDs by analyzing the quantitative data on ***:One hundred and thirteen cardiac quantitative data was analyzed in 370 normal and 49 AVSDs fetuses *** top six with the highest diagnostic accuracy rate were acquired according to the area under the curve(AUC),and the diagnostic value of six variables was ***:Six parameters obtained on the four-chamber view(4CHV),including the atrial to ventricular length ratio in end-diastole(AVLR-ED),AVLR-ED combined with the atrial to ventricular length ratio in end-systole(AVLR-ES),quantile score(Q score)of AVLR-ED,Q score of AVLR-ES,Q score of ventricle length in end-diastole(VL-ED),and AVLR-ES,were the top six with the highest diagnostic value,and the AUC was 0.99(95%CI 0.99–1.00),0.99(95%CI 0.99–1.00),0.99(95%CI 0.98–1.00),0.95(95%CI 0.91–0.99),0.93(95%CI 0.87–0.99),and 0.91(95%CI 0.83–1.00),*** within the 20%false positive rate,the diagnostic sensitivity was greater than 100%,100%,100%,90%,90%,and 88%,***:Six variables could be used for prenatal diagnosis of *** them,AVLR-ED and Q score of AVLR-ED,obtained on the 4CHV,were more convenient to acquire and had higher diagnostic accuracy.

关键词： AVSDs fetus echocardiography Q score quantitative

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Outlier Mining Based on Principal Component Estimation

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Acta Mathematicae Applicatae Sinica 2005年第2期21卷 303-310页

作者： Huyang tingyang CollegeofMathematicsandPhysics ChongqingUniversity400030China

Outlier mining is an important aspect in data mining and the outlier miningbased on Cook distance is most commonly used. But we know that when the data have multicollinearity,the traditional Cook method is no longer effective. Considering the excellence of the principalcomponent estimation, we use it to substitute the least squares estimation, and then give the Cookdistance measurement based on principal component estimation, which can be used in outlier *** the same time, we have done some research on related theories and application problems.

关键词： Outlier mining principal component estimation Cook distance

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Distributed Cooperative Control of Battery Energy Storage Systems in DC Microgrids

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IEEE/CAA Journal of Automatica Sinica 2021年第3期8卷 606-616页

作者： tingyang Meng Zongli Lin Yacov A.Shamash Charles L.Brown Department of Electrical and Computer Engineering University of VirginiaCharlottesvilleVA 22904-4743 USA Department of Electrical and Computer Engineering Stony Brook UniversityStony BrookNY 11794-2350 USA

The control of battery energy storage systems(BESSs)plays an important role in the management of *** this paper,the problem of balancing the state-ofcharge(SoC)of the networked battery units in a BESS while meeting the total charging/discharging power requirement is formulated and solved as a distributed control *** on the communication topology among the battery units are established under which a control law is designed for each battery unit to solve the control problem based on distributed average reference power estimators and distributed average unit state *** types of estimators are *** achieves asymptotic estimation and the other achieves finite time *** show that,under the proposed control laws,SoC balancing of all battery units is achieved and the total charging/discharging power of the BESS tracks the desired power.A simulation example is shown to verify the theoretical results.

关键词： Cooperative control energy storage systems microgrids multi-agent systems

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The “China Dream” in Question

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Economic and Political Studies 2014年第1期2卷 127-142页

作者： tingyang ZHAO the Chinese Academy of Social Sciences

This paper discusses the historical changes of China’s dream with an analysis of the methodological China that has provided China both flexibility in its imitations of the Western modernization and the potential ability to participate in the innovations of new rules of the global *** author believes that the methodological China is a better concept to understand China as it always goes.

关键词： China dream methodological China imitation and innovation

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The bulk transfer coefficients and surface fluxes on the western Tibetan Plateau

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Chinese Science Bulletin 2000年第13期45卷 1221-1226页

作者： Guoping Li tingyang Duan Yuanfa Gong Chengdu Inst Meteorol Dept Meteorol Chengdu 610041 Peoples R China

On the gradient observational data of the atmospheric surface layer from September 1997 to December 1998 collected by two sets of Automatic Weather Station (AWS) installed in Gaize and Shiquanhe on the western Tibetan Plateau, mean surface roughness lengths at the two stations above are determined to be 2.7 and 2.9 cm, respectively. The bulk transfer coefficients each day are computed by the profile-flux method, means of the bulk transfer coefficient for momentum (i.e. drag coefficient) in 1998 are 4.83×10-3 and 4.75×103 at the two stations. The surface fluxes of momentum, sensible heat and latent heat each day are further estimated by the bulk formulas, annual mean of these fluxes is 3.4×10-2 and 1.8×102N/m2, 73.1 and 67.2 W/m2, 15.4 and 2.9 W/m2, respectively. The diurnal and seasonal variations are obtained by a composite method and the relationships among the heat transfers between land and atmosphere, plateau monsoon and plateau rain season are also discussed.

关键词： western Tibetan Plateau AWS data surface roughness length bulk transfer coefficient surface flux.

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The Ontology of Verbs and the Horizon of Creators

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Social Sciences in China 2022年第4期43卷 24-40页

作者： Zhao tingyang 黄德远 Institute of Philosophy Chinese Academy of Social Sciences(CASS) 不详

Philosophy based on epistemology is a philosophy of nouns which is restricted by the horizon of the knower, and cannot explain creation by human beings within its subjectobject frame. Therefore, we propose a philosophy of verbs that establishes itself on creational ontology and re-understands existence and origin from the horizon of the creator,so as to make that “I do”(facio) the starting point for the understanding of all order, ideas,and history that require consideration.

关键词： creator philosophy of verbs ontology of creation

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胎儿心脏定量分析技术在中孕晚期正常胎儿心脏结构及功能的研究

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心肺血管病杂志 2023年第8期42卷 844-849页

作者：韩艳丽杨汀阳满婷婷赵映谷孝艳张烨韩建成武玉多朱皞罡何怡华首都医科大学附属北京安贞医院-北京市心肺血管疾病研究所心脏超声医学中心胎儿心脏病母胎医学中心 100029 北京航空航天大学软件开发环境国家重点实验室

目的:用定量分析技术(fetal heart quantification,Fetal HQ),对中孕晚期正常胎儿心脏结构及功能等参数进行初步分析。方法:收集2019年9月至2020年1月,在北京安贞医院母胎医学中心就诊的,妊娠22~27周间的153例正常单胎妊娠胎儿,进行系... 详细信息

目的:用定量分析技术(fetal heart quantification,Fetal HQ),对中孕晚期正常胎儿心脏结构及功能等参数进行初步分析。方法:收集2019年9月至2020年1月,在北京安贞医院母胎医学中心就诊的,妊娠22~27周间的153例正常单胎妊娠胎儿,进行系统超声心动图检查,存储胎儿标准四腔心切面,通过Fetal HQ软件后处理操作计算出心脏整体及左、右心室不同节段的球形指数(sphericity index,SI),左、右心室24节段舒张末期内径及短轴缩短分数(fractional shortening,FS)、左、右心室面积变化率(left and right ventricular area change rate, FAC)及整体纵向应变(global left and right ventricular longitudinal strain,GLS)和LVEF并探讨各参数数据分布情况及与孕周之间的相关性。并进行检查者间和检查者自身的重复性检验。结果:除左心室1~24节段LVEDD及右心室第4~13节段舒张末期内径(right ventricular diastolic diameter, RVED)与孕周(gestational age, GA)呈正相关,且符合正态分布外,其他参数均与GA无相关性,其中右心室面积变化率(the right ventricular area change rate,RVFAC)、左心室短轴缩短分数(the left fractional shortening, LVFS)、右心室短轴缩短分数(the right fractional shortening,RVFS)及第10~17节段LVSI呈正态分布,整体球形指数(the sphericity index,GSI)、左心室面积变化率(the left ventricular area change rate,LVFAC)、LVEF、左心室纵向应变(left ventricular longitudinal strain,LVGS)、右心室纵向应变(right ventricular longitudinal strain,RVGS)、1~24节段右心室球形指数(right ventricular sphericity index,RVSI)、第1~9节段、18~24节段左心室球形指数(left ventricular sphericity index,LVSI)符合非正态分布。各参数观察者自身ICC为GSI:0.89,LVEF:0.79,LVGS:0.83, LVFAC:0.82, RVFAC:0.75, RVGS:0.74;观察者间ICC为GSI:0.83, LVEF:0.75, LVGS:0.78, LVFAC:0.74, RVFAC:0.70, RVGS:0.62。结论:Fetal HQ技术可以分析胎儿心脏整体及左、右心室24节段结构及功能,对了解胎儿心脏发育过程中不同节段的大小、形态、功能随孕周的差异性变化,提供了新的方法。

关键词：超声心动图胎儿心脏定量分析技术胎儿心功能

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Temperature difference-enhanced salinity gradient energy conversion enabled by thermostable hydrogel membrane with anti-swelling property

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Nano Research 2023年第8期16卷 11288-11295页

作者： Zhehua Zhang Teng Zhou Xiang-Yu Kong Yadong Wu Weiwen Xin yanglansen Cui Linsen yang tingyang Li Xin Li Qingchen Wang Weipeng Chen Lei Jiang Liping Wen Key Laboratory of Bio-inspired Materials and Interfacial Science Technical Institute of Physics and ChemistryChinese Academy of SciencesBeijing 100049China School of Future Technology University of Chinese Academy of SciencesBeijing 100049PChina College of Mechanical and Electrical Engineering Hainan UniversityHaikou 570228China Binzhou Institute of Technology Binzhou 256600China

Coupling low-grade heat(LGH)with salinity gradient is an effective approach to increase the efficiency of the nanofluidic-membrane-based power ***,it is a challenge to fabricate membranes with high charge density that ensures ion permselectivity,while maintaining chemical and mechanical stability in this composite ***,we develop a bis[2-(methacryloyloxy)ethyl]phosphate(BMAP)hydrogel membrane with good thermal stability and anti-swelling property through self-crosslinking of the selected *** taking advantage of negative space charge and three-dimensional(3D)interconnected nanochannels,salinity gradient energy conversion efficiency is substantially enhanced by temperature *** and experimental results verify that LGH can largely weaken the concentration polarization,promoting transmembrane ion *** a result,such a hydrogel membrane delivers high-performance energy conversion with a power density of 11.53 W·m^(−2)under a negative temperature difference(NTD),showing a 193%increase compared with that without NTD.

关键词： ion transport temperature difference-enhanced salinity gradient energy self-crosslinking hydrogel membranes space charge

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Talking About ‘World’ From Perspective of Philosophy

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中国新闻发布(英文版) 2024年第Z1期 41-42页

作者： Zhao tingyang the Chinese Academy of Social Sciences (CASS) the CASS' Institute of Philosophy

I want to discuss the concept of “world” from a philosophical perspective. What's the best possible world? Let us pose this question to people. This was, and continues to be, an opportunity for people to construct the world — for the first men and women in their primitive state, as well as for all subsequent generations. Unfortunately, humans are unlikely to create the best possible world.

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Elucidating the role of embedding dispersed cobalt sites in nitrogen-doped carbon frameworks in Si-based anodes for stable and superior storage

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Journal of Energy Chemistry 2024年第11期98卷 180-195页

作者： Yueying Chen Ping Li Mianying Huang Chunlei Wu Qianhong Huang tingyang Xie Xiaoming Lin Akif Zeb Yongbo Wu Zhiguang Xu Yuepeng Cai Joint Laboratory of Energy and Materials Chemistry(South China Normal University-Guangzhou Tianci New Materials Co.Ltd.) Key Laboratory of Theoretical Chemistry of EnvironmentMinistry of EducationSchool of ChemistrySouth China Normal UniversityGuangzhou 510006GuangdongChina Department of Chemistry and Chemical Engineering Jiangxi Normal UniversityNanchang 330022JiangxiChina Guangzhou Huifu Research Institute Co.Ltd Nanxiang San LuGuangzhou 510663GuangdongChina Key Laboratory of Atomic and Subatomic Structure and Quantum Control(Ministry of Education) Guangdong Basic Research Center of Excellence for Structure and Fundamental Interactions of MatterSchool of PhysicsSouth China Normal UniversityGuangzhou 510006GuangdongChina Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials Guangdong-Hong Kong Joint Laboratory of Quantum MatterSouth China Normal UniversityGuangzhou 510006GuangdongChina

Unsatisfactory conductivity and volume effects have hindered the commercial application of siliconbased materials as advanced anode materials for high-performance lithium-ion batteries. Herein, nitrogen doped carbon silicon matrix composite with atomically dispersed Co sites(Si/Co-N-C) is obtained via the design of the frame structure loaded with nano-components and the multi-element hybrid strategy. Co atoms are uniformly fixed to the N-C frame and tightly packed with nanoscale silicon particles as an activation and protection building block. The mechanism of the N-C framework of loaded metal Co in the Si alloying process is revealed by electrochemical kinetic analysis and ex situ characterization ***, the nitrogen-doped Co site activates the intercalation of the outer carbon matrix to supplement the additional capacity. The Co nanoparticles with high conductivity and support enhance the conductivity and structural stability of the composite, accelerating the Li^(+)/Na^(+) diffusion kinetics. Density functional theory(DFT) calculation confirms that the hetero-structure Si/Co-N-C adjusts the electronic structure to obtain good lithium-ion adsorption energy, reduces the Li^(+)/Na^(+) migration energy *** work provides meaningful guidance for the development of high-performance metal/non-metal modified anode materials.

关键词： Co nanoparticles Nitrogen doped carbon Silicon Lithium/sodium storage Metal-organic frameworks(MOFs)

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