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Comments on "Traditional Chinese Medicine Use in the Treatment of Acute Heart Failure in Western Medicine Hospitals in China: Analysis from the China PEACE Retrospective Heart Failure Study"

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Chinese Journal of Integrative Medicine 2020年第3期26卷 163-164页

作者： yang ming LIU Jian-ping Beijing University of Chinese Medicine

Recently,Journal of American Heart of Association published an article entitled"Traditional Chinese Medicine Use in the Treatment of Acute Heart Failure in Western Medicine Hospitals in China:Analysis from the China PEACE Retrospective Heart Failure Study",which drew a conclusion of traditional Chinese medicine(TCM)may be harmful for heart failure patients and added the possibility of bleeding and mortality.(1)However,there existing several drawbacks in the study design,data analyses,and the conclusions that may mislead readers.

关键词： Medicine mortality bleeding

Superconvergence of a Combined Mixed Finite Element and Discontinuous Galerkin Method for a Compressible Miscible Displacement Problem

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Acta Mathematicae Applicatae Sinica 2011年第3期27卷 481-494页

作者： Ji-ming yang Yanping Chen College of Science Hunan Institute of Engineering Xiangtan 411104 China School of Mathematical Sciences South China Normal University Guangzhou 510631 China

A combined mixed finite element and discontinuous Galerkin method for a compressible miscible displacement problem which includes molecular diffusion and dispersion in porous media is investigated. That is to say, the mixed finite element method with Raviart-Thomas space is applied to the flow equation, and the transport one is solved by the symmetric interior penalty discontinuous Galerkin （SIPG） approximation. Based on projection interpolations and induction hypotheses, a superconvergence estimate is obtained. During the analysis, an extension of the Darcy velocity along the Gauss line is also used in the evaluation of the coefficients in the Galerkin procedure for the concentration.

关键词： superconvergence mixed finite element discontinuous Galerkin compressible

Detecting Very-High-Frequency Relic Gravitational Waves by a Waveguide

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Chinese Journal of Astronomy and Astrophysics 2008年第3期8卷 314-328页

作者： ming-Lei Tong yang Zhang Centre for Astrophysics University of Science and Technology of China Hefei 230026 China

The polarization vector （PV） of an electromagnetic wave （EW） will experience a rotation in a region of spacetime perturbed by gravitational waves （GWs）. Based on this consideration, Cruise＇s group has built an annular waveguide to detect GWs. We give detailed calculations of the rotations of polarization vector of an EW caused by incident GWs from various directions and in various polarization states, and then analyze the accumulative effects on the polarization vector when the EW passes n cycles along the annular waveguide. We reexamine the feasibility and limitation of this method to detect GWs of high frequency around 100 MHz, in particular the relic gravitational waves （RGWs）. By comparing the spectrum of RGWs in the accelerating universe with the detector sensitivity of the current waveguide, it is found that the amplitude of the RGWs is too low to be detected by the waveguide detectors currently operating. Possible ways of improvements on detection are suggested.

关键词： early universe -- instrumentation detectors -- gravitational waves --polarization

Blow Up Behavior for a Semilinear Parabolic Equation with Localized Source

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Acta Mathematicae Applicatae Sinica 2010年第1期26卷 133-144页

作者： ming yang Hui-ling Li Department of Mathematics Southeast University Nanjing 210096 China

In this paper, we investigate the blow-up behavior of solutions of a parabolic equation with localized reactions. We completely classify blow-up solutions into the total blow-up case and the single point blow-up case, and give the blow-up rates of solutions near the blow-up time which improve or extend previous results of several authors. Our proofs rely on the maximum principle, a variant of the eigenfunction method and an initial data construction method.

关键词： semilinear parabolic equation single point blow-up total blow-up blow up rate localized source

Coincidence Theorems with Applications to Minimax Inequalities,Section Theorem,Best Approximation and Multiobjective Games in Topological Spaces

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Acta Mathematica Sinica,English Series 2006年第6期22卷 1809-1818页

作者： Lei DENG ming Ge yang Department of Mathematics Southwest University Chongqing 400715 P. R. China

Some new coincidence theorems involving admissible set-valued mappings are proved in general noncompact topological spaces. As applications, some new minimax inequalities, section theorem, best approximation theorem, existence theorems of weighted Nash equilibria and Pareto equilibria for multiobjective games are given in general topological spaces.

关键词： admissible set-valued mapping generalized R-KKM mapping transfer compactly openvalued compactly local intersection property multiobjective game

Non-constant Stationary Solutions to a Prey-predator Model with Diffusion

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Acta Mathematicae Applicatae Sinica 2009年第1期25卷 141-150页

作者： ming yang Wen-yan Chen Department of Mathematics Southeast University Nanjing 210096 China

In this paper, a nonlinear predator reproduction and prey competition model with diffusion is discussed. Some existence and non-existence results concerning non-constant positive steady-states are presented using topo... 详细信息

关键词： Prey-predator model steady states degree method energy method

Global Zero-relaxation Limit Problem of the Electro-diffusion Model Arising in Electro-Hydrodynamics

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Acta Mathematicae Applicatae Sinica 2024年第1期40卷 241-268页

作者： ming-hua yang Si-ming Huang Jin-yi Sun Department of Mathematics Jiangxi University of Finance and EconomicsNanchang330032China School of Public Administration Guangdong University of Foreign StudiesGuangzhou510006China College of Mathematics and Statistics Northwest Normal UniversityLanzhou730070China

In this paper,we study a global zero-relaxation limit problem of the electro-diffusion model arising in electro-hydrodynamics which is the coupled Planck-Nernst-Poisson and Navier-Stokes *** is,the paper deals with a singular limit problem of{u^(∈)_(t)+u^(∈)·▽u^(∈)-Δu^(∈)+▽P^(∈)=Δφ^(∈)▽φ^(∈),in R^(3)×(0,∞),▽·u^(∈)=0,in R^(3)×(0,∞),n^(∈)_(t)+u^(∈)·▽n^(∈)-Δn^(∈)=-▽·(n^(∈)▽φ^(∈)),in R^(3)×(0,∞),ct+u^(∈)·▽c^(∈)-Δc^(∈)=▽·(c^(∈)▽φ^(∈)),in R^(3)×(0,∞),∈^(-1)φ^(∈)_(t)=Δφ^(∈)-n^(∈)+c^(∈),in R^(3)×(0,∞),(u^(∈),n^(∈),c^(∈),φ^(∈))|t=0=(u0,n0,c0,φ0),in R^(3) involving with a positive,large parameter^(∈).The present work show a case that(u^(∈),n^(∈),c^(∈))stabilizes to(u^(∞),n∞,c∞):=(u,n,c)uniformly with respect to the time variable as^(∈)→+∞with respect to the strong topology in a certain Fourier-Herz space.

关键词： fourier-Herz space littlewood-Paley decomposition stability limit dissipative system

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雾天环境下的指针式仪表检测与读数识别

化工自动化及仪表 2025年第1期52卷 101-110页

作者：吴攀超杨鹏孙电洋杨明昊东北石油大学电气信息工程学院

针对雾天油田巡检机器人对指针式仪表漏检及读数识别准确率低的问题,提出一种结合FFA-Net去雾算法和Yolov5检测网络的方法。首先,对于雾天图像,改进了FFA-Net算法,通过多尺度结构、特征融合残差块和优化模块,有效地提升了算法在去雾任... 详细信息

针对雾天油田巡检机器人对指针式仪表漏检及读数识别准确率低的问题,提出一种结合FFA-Net去雾算法和Yolov5检测网络的方法。首先,对于雾天图像,改进了FFA-Net算法,通过多尺度结构、特征融合残差块和优化模块,有效地提升了算法在去雾任务中的性能表现。其次,对于仪表检测与读数识别,采用较小的检测头来提升Yolov5对小目标的检测能力,并引入空间转换模块将检测到的表盘图像转换为更符合人眼观感的正视图像。最后,创建了一个端到端的框架,紧密耦合仪表成分检索和仪表读数识别,提高了仪表读数的准确性。实验结果表明,所提方法在油田雾天环境下展现出了良好的鲁棒性,提升了雾天环境下指针式仪表检测与读数识别的准确性。

关键词：图像去雾 Yolov5 仪表检测仪表识别

Relief Materials Vehicles Planning in Natural Disasters

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IEEE/CAA Journal of Automatica Sinica 2018年第2期5卷 595-601页

作者： Qun Shi Wen yang Zhen-ming yang Qian-Chuan Zhao Department of Automation Tsinghua University Beijing 100084 China IEEE

A variety of relief materials needs to be transported to the disaster hit areas immediately after natural disasters. This paper studies the problem of planning relief materials vehicles in order to maximize their total weight. We propose a new method named substitution equilibrium point which can be used to plan relief materials vehicles. One feature of our model is to consider the substitution among vehicles which is usually omitted in the literature. The simulation experiments show that the transportation fleets are increased effectively considering the substitution between vehicles. Substitution equilibrium point has the same results as integer programming but has much lower time complexity.

关键词： Index Terms-Equilibrium point substitution transportationfleet vehicles planning.