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Synchronization analysis on cascaded multilevel converters with distributed control

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2008年第2期9卷 190-198页

作者： ming-yao MA Xiang-ning HE School of Electrical Engineering Zhej iang University Hangzhou 310027 China

Cascaded multilevel converters built with integrated modules have many advantages such as increased power density,flexible distributed control,multi-functionality,increased reliability and short design ***,the system performance will be affected due to the synchronization errors among each integrated *** paper analyzes the impact of the three kinds of synchronization errors on the whole system performance,as well as detailed synchronization *** valuable conclusions are derived from the theoretical analysis,simulations and experimental results.

关键词： Cascaded multilevel converter Integrated module Synchronization

Thermal conductivity model of filled polymer composites

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International Journal of Minerals,Metallurgy and Materials 2011年第5期18卷 623-631页

作者： ming-xia Shen Yin-xin Cui Jing He yao-ming Zhang College of Mechanics and Materials Hohai University Nanjing 210098 China

Theoretical and empirical models for predicting the thermal conductivity of polymer composites were summarized since the *** effects of particle shape,filler amount,dispersion state of fillers,and interfacial thermal barrier on the thermal conductivity of filled polymer composites were investigated,and the agreement of experimental data with theoretical models in literatures was *** with high thermal conductivity was chosen to mix with polyvinyl-acetate （EVA） copolymer to prepare SiO2/EVA *** data of the co-films＇ thermal conductivity were compared with some classical theoretical and empirical *** results show that Agari＇s model,the mixed model,and the percolation model can predict well the thermal conductivity of SiO2/EVA co-films.

关键词： polymer matrix composites thermal conductivity mathematical models polyvinyl acetates silica filled polymers.

Normality of Tetravalent Cayley Graphs of Odd Prime-cube Order and Its Application

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Acta Mathematica Sinica,English Series 2005年第4期21卷 903-912页

作者： Yan Quan FENG ming yao XU Department of Mathematics Beijing Jiaotong University Beijing 100044 P. R. China LMAM Institute of Mathematics Peking University Beijing 100871 P. R. China

Let p be an odd prime. In this paper we prove that all tetravalent connected Cayley graphs of order p^3 are normal. As an application, a classification of tetravalent symmetric graphs of odd prime-cube order is given.

关键词： Cayley graph Normal Cayley graph Symmetric graph

Boundedness for Parabolic Singular Integral with Rough Kernels and Its Commutators on Triebel-Lizorkin Spaces

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Acta Mathematica Sinica,English Series 2011年第9期27卷 1783-1802页

作者： Shuang Ping TAO yao ming NIU College of Mathematics and Information Science Northwest Normal University Lanzhou 730070 P. R. China Faculty of Mathematics Baotou Teachers College Baotou 014030 P. R. China

In this paper, the authors give the boundedness on Triebel-Lizorkin spaces for the parabolic singular integral with rough kernel and its commutator.

关键词： Parabolic singular integral Triebel-Lizorkin spaces commutator parabolic BMO

Transition-layer Solutions of Quasilinear Elliptic Boundary Blow-up Problems and Dirichlet Problems

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Acta Mathematica Sinica,English Series 2011年第11期27卷 2177-2190页

作者： Zong ming GUO yao Yong YAN Department of Mathematics He＇nan Normal University Xinxiang 453007 P. R. China

We study profiles of positive solutions for quasilinear elliptic boundary blow-up problems and Dirichlet problems with the same equation：where ω 〉 0, a（x） is a continuous function satisfying 0 〈 a（x）〈 1 for x ∈Ω, Ω is a bounded smooth domain in R^N. We will see that the profile of a minimal positive boundary blow-up solution of the equation shares some similarities to the profile of a positive minimizer solution of the equation with homogeneous Dirichlet boundary condition.

关键词： Quasilinear elliptic boundary blow-up problems quasilinear elliptic Dirichlet problems transition-layer solutions minimizer solutions

Better therapy for combat injury

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Military Medical Research 2020年第1期7卷 122-124页

作者： Yong-ming yao Hui Zhang Trauma Research Center Fourth Medical Center of the Chinese PLA General HospitalBeijing 100048People's Republic of China

In modern warfare,therapy for combat injury is a critical issue to improve personnel survival and battle *** limited to the severe circumstance in the distant battlefield,quick and effective treatment cannot be supplied that leads infections,sepsis,multiple organ dysfunction syndrome(MODS)and high *** get a better therapy for combat injury,we summarized several reports that associated with the mechanisms of sepsis and MODS,those published on MMR *** and colleagues reported gender difference in the outcomes of trauma,shock and *** advantageous outcome in female is due to their hormone *** accumulating reports indicated estrogen as a beneficial factor for multiple system and organs,including the central nervous system,the cardiopulmonary system,the liver,the kidneys,the immune system,and leads to better survival from *** et *** the underlying mechanisms in trauma induced sepsis,which can be concluded as an imbalance of immune response triggered by damage-associated molecular patterns(DAMPs)and other immune modifying *** also emphasize immunomodulation as a better therapeutic strategy that might be a potential benefit in regulating the host immune *** et *** revealed a crucial mechanism underlying lung epithelial and macrophage crosstalk,which involves IL-25 as a *** the injury,lung epithelial secreted IL-25 promotes TNF-αproduction in macrophage leading to acute lung injury(ALI).In addition to a mountain of cytokines,mitochondrial dysfunction in immune cell is another critical risk factor for immune dysfunction during *** morphology and function alterations in mitochondria are closely associated with inadequate ATP production,insufficient metabolism process and overloaded ROS production,which lead harm to immune cells and other tissues by triggering oxidative *** the above reports discussed mechanisms of sepsis induction after trauma and provided evide

关键词： Combat injury Sepsis Multiple organ dysfunction syndrome Estrogen Immune dysfunction Mitochondrial function Interleukin-25

Spatial differentiation in stable isotope compositions of surface waters and its environmental significance in the Issyk-Kul Lake region of Central Asia

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Journal of Mountain Science 2018年第2期15卷 254-263页

作者： MA Long JILILI Abuduwaili LI yao-ming State Key Laboratory of Desert and Oasis Ecology Xinjiang Institute of Ecology and Geography Chinese Academy of Sciences Urumqi 830011 China CAS Research Center for Ecology and Environment of Central Asia Urumqi 830011 China

Stable isotope values of oxygen （180） and hydrogen （2H） of surface waters were used to study the origin and environmental significanees in the Issyk-Kul basin of Kyrgyzstan in Central Asia, which is the most important intermountain basin in the modern Tien Shan orogen. This study is the first analysis of hydrochemical spatial differentiation in the stable isotopes of surface waters in this watershed. 75 samples were collected from rivers, springs, lakes, rain and snow during the rainy season in July and August of 2o16. Stable isotopes of 180 and 2H were studied for all samples, and cation ratios （Sr/Ca and Mg/Ca） were also determined for lake water samples. Stable isotope values from precipitation scattered around the Local Meteoric Water Line （determined from Urumqi Station of the global network of isotopes in precipitation （GNIP））, together with values of the Deuterium excess parameter （d） from 15.3‰ to 30.5‰, with an average of 19.8‰, indicating that the moisture sources are primarily from regions with low relative humidity. The 8180 and 52H values were significantly different between the river and lake samples, indicating that regional evaporation caused the isotopic enrichment of lake water. Geospatial autocorrelation, measured by Moran＇s I coefficient, indicated weak spatial autocorrelation within stable isotopes of oxygen and hydrogen in the surface waters of the studied area, which is primarily an effect of climate during the water chemistry evolution. The cation ratios Sr/Ca and Mg/Ca in lake water samples were not correlated with the concentration of total dissolved solids, but did show correlation with stable isotopic values, which is significant for paleoenvironmental reconstruction.

关键词： Spatial differentiation Stable isotope Moisture Sources Geospatial autocorrelation IssykKul Lake Central Asia

Meditative Practices in the Context of Constructing and Understanding the Spatial World

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Fudan Journal of the Humanities and Social Sciences 2018年第4期11卷 515-531页

作者： yao-ming Tsai Department of Philosophy National Taiwan UniversityNo.1Sec.4Roosevelt Road Taipei 106TalwanROC

Major Buddhist traditions,especially Yogacara Buddhism,suggest that both mental activities and meditative practices play determinative roles in con- structing and understanding the spatial *** the spatial world,which is closely related to the temporal world,numerous passages in the Agama-sutras indicate that such a set of meditative practices as the "eight levels of liberation" (as..tau vimok4.8.h)can perform a pioneering function,on the one hand,in understating how the realm of desire of the spatial world is both constructed by and therefore confined by sentient beings'desire-infused mental activities,and on the other hand,in expanding the spatial world from the realm of desire to those of form and *** sixth chapter of the ***-nirmocana-sutra discusses in detail how and why a bodhisattva practices the meditation of quietude and *** the line of the quietude meditation,various discursive constructions of time and space can actually be *** the line of the insight meditation,the unreality of identity in relation to time and space can be clearly *** view of such reasoning,this study will investigate how the ***-nirmocana-sutra explicates the way in which mental activities and meditative practices are intrinsic in the construction and understanding of the spatial *** detailed exploration of the multiple roles played by meditative practices in shaping the spatial world,this study will conclude with a brief examination of the thematic consistency among these two texts.

关键词： Yogacaa Buddhism Meditation Space-time Liberation

Potential therapy strategy: targeting mitochondrial dysfunction in sepsis

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Military Medical Research 2019年第3期6卷 230-241页

作者： Hui Zhang Yong-Wen Feng Yong-ming yao Trauma Research Center First Hospital Affiliated to the Chinese PLA General HospitalFucheng Road 51Haidian DistrictBeijing 100048China Department of Critical Care Medicine the Second People’s Hospital of ShenzhenShenzhen 518035China.

Recently, the definition of sepsis was concluded to be a life-threatening organ dysfunction caused by a dysregulated host response to infection. Severe patients always present with uncorrectable hypotension or hyperlactacidemia, which is defined as septic shock. The new definition emphasizes dysregulation of the host response and multiple organ dysfunction, which is partially attributed to metabolic disorders induced by energy crisis and oxidative stress. Mitochondria are a cellular organelle that are well known as the center of energy production, and mitochondrial damage or dysfunction is commonly induced in septic settings and is a predominant factor leading to a worse prognosis. In the present review, we determine the major mitochondrial disorders from morphology to functions in sepsis. In the following, several clinical or pre-clinical assays for monitoring mitochondrial function are demonstrated according to accumulated evidence, which is the first step of specific therapy targeting to modulate mitochondrial function. Accordingly, various reagents used for regulating mitochondrial enzyme activities and promoting biogenesis have been documented, among which mitochondriatargeted cation, TPP-conjugated antioxidants are the most valuable for future trials and clinical treatment to improve mitochondrial function as they may take advantage of the prognosis associated with septic complications.

关键词： Sepsis Mitochondria Electron transfer chain Monitor Therapy strategy