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Feasibility of diagnosing unstable plaque in patients with acute coronary syndrome using imap-IVUS

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2015年第11期16卷 924-930页

作者： Jian LIU Zhao WANG Wei-min WANG Qi LI yu-liang ma Chuan-fen LIU Ming-yu LU Hong ZHAO Department of Cardiology Peking University People's Hospital

Objective： To compare the plaque composition between stable and unstable plaques, characterize unstable plaque by using imap-intravascular ultrasound （IVUS）, and quantify the diagnostic criteria for unstable plaque. Methods： Thirty-three acute coronary syndrome （ACS） patients who had undergone coronary angiography and IVUS from February 19, 2014 to December 19, 2014 at Peking University People＇s Hospital were enrolled in the study. Baseline data were collected. The patients were divided into two groups according to their gray-scale IVUS imaging, stable plaque and unstable plaque. A difference-in-difference evaluation was performed using the baseline data and off-line imap imaging results between the two groups. A receiver operating characteristic （ROC） curve was constructed to obtain the optimal cut-off value to diagnose unstable plaque. Results： Percentages of fibrotic and necrotic tissues, absolute values of lipidic, necrotic, and calcified tissues, and plaque burden were independent predictors for unstable plaque. Absolute necrotic area was the best predictor and exhibited the highest diagnostic value for plaque vulnerability （area under the curve （AUC）=0.806, P=0.000, 95% CI （0.718, 0.894））. The cut-off score for predicting unstable plaque was 4.0 mm2. Conclusions： This study attempted to propose a cut-off value based on absolute necrotic area using imap-IVUS to predict plaque vulnerability in patients with ACS. This score might provide a valuable reference for diagnosing unstable plaque.

关键词： Acute coronary syndrome Intravascular ultrasound Unstable plaque

Intravascular ultrasound-based analysis of factors affecting minimum lumen area in coronary artery intermediate lesions

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Journal of Geriatric Cardiology 2016年第2期13卷 169-174页

作者： Jian LIU Ying ZHANG Wei-Min WANG Zhao WANG Qi LI Chuan-Fen LIU yu-liang ma Ming-yu LU Hong ZHAO Department of Cardiology Peking University People's Hospital Beijing China

Objective To identify clinical characteristics associated with the minimum lumen area （MLA） of proximal or middle intermediate lesions in the left anterior descending （LAD） artery, and to develop a model to predict MLA. Methods We retrospectively analyzed demographic data, medical history, and intravascular ultrasound findings for 90 patients with intermediate lesions in the LAD artery. Linear regression was used to identify factors affecting MLA, and multiple regression was used to develop a model for predicting MLA. Results Age, number of lesions, and diabetes mellitus correlated significantly with MLA of proximal or middle intermediate lesions. A regression model for predicting MLA （mm2） was derived from the data： 7.00 - 0.05 × （age） - 0.50 × （number of lesions）. A cut-off value of 3.1 mm2 was proposed for deciding when to perform percutaneous coronary intervention. Conclusion This model for predicting MLA of proximal or middle intermediate lesions in the LAD artery showed high accuracy, sensitivity, and specificity, indicating good diagnostic potential.

关键词： Intermediate lesions Intravascular ultrasound Predictive model Risk factors

Vector meson's spin alignments in high energy reactions

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 5-20页

作者： Jin-Hui Chen Zuo-Tang liang yu-Gang ma Xin-Li Sheng Qun Wang Key Laboratory of Nuclear Physics and Ion-beam Application (MoE) Institute of Modern PhysicsFudan University Institute of Frontier and Interdisciplinary Science Key Laboratory of Particle Physics and Particle Irradiation (MOE)Shandong University INFN-Firenze Department of Modern Physics University of Science and Technology of China School of Mechanics and Physics Anhui University of Science and Technology

The global spin alignment of vector mesons has been observed by the STAR collaboration at the Relativistic Heavy Ion Collider （RHIC） at Brookhaven National Laboratory （BNL）.It provides a unique opportunity to probe the correlation between the polarized quark and antiquark in the strongly coupled quark-gluon plasma （sQGP） produced in relativistic heavy ion collisions,opening a new window to explore the properties of s *** addition,spin alignments of vector mesons have also been observed in other high-energy particle collisions such as e+e-annihilations at high energies where hadron production is dominated by quark fragmentation *** results obtained are quite different from those obtained in heavy ion collisions where quark coalescence/combination mechanism dominates suggesting strong dependence on hadronization *** comprehensive studies in different hadronization processes are *** this article,we present a brief review of theoretical and experimental advances in the study of vector meson’s spin alignments in a variety of high-energy particle collisions,with emphasis on hadronization mechanisms.

关键词： vector meson spin alignment global polarization relativistic heavy ion collisions fragmentation

Experimental Study on Adaptive Iterative Control for Lower Limb Prostheses

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Experimental Study on Adaptive Iterative Control for Lower L...

New glucocerebrosidase antibodies can advance research in the field of neurodegenerative disorders

2015年中国智能自动化学术会议

作者： yu-liang ma Xiao-hui Ding Ming Meng Qing-shan She Institute of Intelligent Control and Robotics Hangzhou Dianzi University

In order to adapt to the personalized parameters and to the change of tempo in user’s lower limb prosthesis,taking these factors such as nonlinear model and parameter uncertainty of human prosthetic system into consideration,adaptive iterative learning controller has been designed to implement imputation control on ***,the dynamic model of lower limb prosthesis is ***,adaptive iterative learning controller is designed to implement imputation control on it,using Lyapunov function method to prove the stability and convergence of tracking ***,the knee trajectory simulation results are *** final results show that the designed controller has excellent tracking results on the lower limb prosthetic knee.

关键词： Lower limb prosthetic Kinetic model Iterative learning adaptive control Trajectory tracking

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Neural Regeneration Research 2025年第4期20卷 1085-1086页

作者： Charis ma Krystyna Rytel yu Chen Ellen Sidransky Medical Genetics Branch National Human Genome Research InstituteNational Institutes of HealthBethesdaMDUSA

In medical research,there are times when the introduction of a new tool can launch scientific discovery in new *** antibody development may be considered mundane,in the field of glucocerebrosidase(GCase)research,the dearth of validated antibodies for different applications has impeded progress in studies of disease pathogenesis and therapeutic *** recent introduction of new,rigorously evaluated antibodies can now propel research into the link between glucocerebrosidase and Parkinson’s disease(PD)as well as aspects of the pathobiology of Gaucher disease(Jong et al.,2024).

关键词： antibodies cerebro

Morphology engineering of ZnO micro/nanostructures under mild conditions for optoelectronic application

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International Journal of Minerals,Metallurgy and materials 2025年第2期32卷 498-503页

作者： liang Chu Haoyu Shen Hudie Wei Hongyu Chen Guoqiang ma Wensheng Yan Institute of Carbon Neutrality and New Energy&School of Electronics and Information Hangzhou Dianzi UniversityHangzhou 310018China School of Applied Physics and materials Wuyi UniversityJiangmen 529020China

Zinc oxide(ZnO)serves as a crucial functional semiconductor with a wide direct bandgap of approximately 3.37 *** reaction is commonly used in the synthesis of ZnO micro/nanostructures,given its low cost,simplicity,and easy ***,ZnO morphology engineering has become desirable through the alteration of minor conditions in the reaction process,particularly at room *** this work,ZnO micro/nanostructures were synthesized in a solution by varying the amounts of the ammonia added at low temperatures(including room temperature).The formation of Zn^(2+)complexes by ammonia in the precursor regulated the reaction rate of the morphology engineering of ZnO,which resulted in various structures,such as nanoparticles,nanosheets,microflowers,and single ***,the obtained ZnO was used in the optoelectronic application of ultraviolet detectors.

关键词： morphology engineering low temperature ZnO nanosheets microflowers ultraviolet detector

Integration of Electrical Properties and Polarization Loss Modulation on Atomic Fe–N‑RGO for Boosting Electromagnetic Wave Absorption

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Nano-Micro Letters 2025年第2期17卷 517-532页

作者： Kaili Zhang yuefeng Yan Zhen Wang Guansheng ma Dechang Jia Xiaoxiao Huang yu Zhou State Key Laboratory of Precision Welding&Joining of materials and Structures Harbin Institute of TechnologyHarbin 150001People’s Republic of China School of materials Science and Engineering Harbin Institute of TechnologyHarbin 150001People’s Republic of China MIIT Key Laboratory of Advanced Structural‑Functional Integration materials&Green manufacturing Technology Harbin Institute of TechnologyHarbin 150001People’s Republic of China

Developing effective strategies to regulate graphene’s conduction loss and polarization has become a key to expanding its application in the electromagnetic wave absorption(EMWA)*** on the unique energy band structure of graphene,regulating its bandgap and electrical properties by introducing heteroatoms is considered a feasible ***,metal-nitrogen doping reduced graphene oxide(M–N-RGO)was prepared by embedding a series of single metal atoms M–N_(4) sites(M=Mn,Fe,Co,Ni,Cu,Zn,Nb,Cd,and Sn)in RGO using an N-coordination atom-assisted *** composites had adjustable conductivity and polarization to optimize dielectric loss and impedance matching for efficient EMWA *** results showed that the minimum reflection loss(RL_(min))of Fe–N-RGO reaches−74.05 dB(2.0 mm)and the maximum effective absorption bandwidth(EAB_(max))is 7.05 GHz(1.89 mm)even with a low filler loading of only 1 wt%.Combined with X-ray absorption spectra(XAFS),atomic force microscopy,and density functional theory calculation analysis,the Fe–N_(4) can be used as the polarization center to increase dipole polarization,interface polarization and defect-induced polarization due to d-p orbital hybridization and structural ***,electron migration within the Fe further leads to conduction loss,thereby synergistically promoting energy *** study demonstrates the effectiveness of metal-nitrogen doping in regulating the graphene′s dielectric properties,which provides an important basis for further investigation of the loss mechanism.

关键词： Electromagnetic wave absorption Fe-N-RGO Dipole polarization Conduction loss Impedance matching

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现代流域规划程序的数学模型

水电能源科学 1989年第4期7卷 324-335页

作者：虞锦江梁年生马寅午管家宝

在流域规划中,梯级水电站群中的各电站应按怎样的程序兴建才能取得最优的技术经济效果,这是水电建设中亟待解决的重要课题。本文运用系统工程的理论和数学规划方法,提出了优化的数学模型,用这个模型和方法,解决梯级水电站的开发程序不... 详细信息

在流域规划中,梯级水电站群中的各电站应按怎样的程序兴建才能取得最优的技术经济效果,这是水电建设中亟待解决的重要课题。本文运用系统工程的理论和数学规划方法,提出了优化的数学模型,用这个模型和方法,解决梯级水电站的开发程序不但在理论上比较完善,而且在应用上也很方便。

关键词：流域规划水电站群梯级水电站数学模型数学规划方法水电建设技术经济效果 straight coordinates requirement

杭州地区育龄妇女和新生儿TORCH的检测结果分析

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中国卫生检验杂志 2017年第9期27卷 1274-1275,1278页

作者：梁宇马琳娜浙江大学医学院附属妇产科医院检验科浙江杭州310000 杭州医学院检验医学院浙江杭州310000

目的探讨TORCH抗体检测的临床意义。方法用化学发光微粒子免疫检测法(CMIA)检测血清中的特异性抗弓形虫IgM/IgG抗体(TOX-IgM/IgG)、抗风疹病毒IgM/IgG抗体(RV-IgM/IgG)、抗巨细胞病毒IgM/IgG抗体(CMV-IgM/IgG),检测抗单纯疱疹病毒Ⅰ型... 详细信息

目的探讨TORCH抗体检测的临床意义。方法用化学发光微粒子免疫检测法(CMIA)检测血清中的特异性抗弓形虫IgM/IgG抗体(TOX-IgM/IgG)、抗风疹病毒IgM/IgG抗体(RV-IgM/IgG)、抗巨细胞病毒IgM/IgG抗体(CMV-IgM/IgG),检测抗单纯疱疹病毒Ⅰ型和Ⅱ型IgM/IgG抗体(HSVⅠ/Ⅱ-IgM/IgG),分析感染率。结果与育龄妇女相比,新生儿的TOX、RV、CMV的IgM抗体阳性率均降低,差异有统计学意义(P0.05)。结论 TORCH的筛查对做好优生优育工作、提高出生人口素质具有重要意义。

关键词： TORCH感染育龄妇女新生儿