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Improved hyper-spherical search algorithm for voltage total harmonic distortion minimization in 27-level inverter

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Journal of Central South University 2019年第10期26卷 2822-2832页

作者： A A KhODADOOST ArANI h KArAMI b VAhIDI G b GhArEhPETIAN Electrical Engineering Department Amirkabir University of Technology

Multi-level inverters(MLIs)have become popular in different applications such as industrial power control systems and distributed *** are different forms of *** cascaded MLIs(CMLIs)have some special advantages among them such as more different output voltage levels using the same number of components and higher power *** this paper,a 27-level inverter switching algorithm considering total harmonic distortion(ThD)minimization is *** angles of the inverter switches are achieved by minimizing a ThD-based objective *** order to minimize the ThD-based objective function,the hyper-spherical search(hSS)algorithm,as a novel optimization algorithm,is improved and the results of improved hSS(IhSS)are compared with hSS algorithm and other five evolutionary algorithms to show the advantages of IhSS algorithm.

关键词： 27-level inverter cascade multi-level inverter improved hyper-spherical search(IhSS)algorithm total harmonic distortion(ThD)minimization

Prognostic value of Doppler transmitral filling patterns in patients with chronic heart failure

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Chinese Medical Journal 2004年第2期17卷 176-182页

作者：郑哲岚 A.Meissner b.hausmann h.Alexander r.Simon Department of Ultrasonography First Affiliated Hospital Zhejiang University College of Medicine Hangzhou 310003 China Department of Cardiology Kiel University Hospital Germany

background Chronic heart failure is a significant cause of cardiovascular morbidity and mortality. This study tested the hypothesis that restrictive filling pattern may provide useful prognostic data for identifying patients with chronic heart failure at high risk of all-cause cardiac death.Methods Ninety patients with chronic heart failure [ 70 men and 20 women, mean age (58.1 ± 11.6) years] were investigated and followed for (18. 8 ±7. 9) months. During this period, 14 patients died of progressive pump failure, 12 patients underwent heart transplantation, 5 patients died suddenly, and 2 patients died of acute myocardial infarction. A new criterion, the restrictive filling index (rFI), was designed to subgroup patients into a restrictive and a nonrestrictive group.results Patients with restrictive filling pattern had a more severe left ventricular dysfunction and a higher cardiac mortality. Analysis by the Kaplan-Meier method revealed that patients in the rFI≥1 and rFI roups had a cardiac events-free survival rate of 52% versus 94% at 1 year, and 27. 5% versus 92% at 2 years, respectively. The multivariate Cox proportional hazard model selected rFI as the most powerful prognostic factor (x2 =8. 8017, P=0. 0030) for all-cause cardiac death.Conclusion These results indicate that rFI is a simple, noninvasive, and specific clinical predictor for adult chronic heart failure patients who are at a high risk for all-cause cardiac death.

关键词： prognosis echocardiography Doppler heart failure congestive blood flow velocity

Photoconductivity and Thermoluminescence of SrAl2O4∶Eu,Dy-A Study of Persistent Phosphors with Delocalization Processes with Prof. YEN

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发光学报 2008年第4期29卷 633-640页

作者： h b Yuan ZN Technology Inc. Brea CA 92821 USA

1 IntroductionA wide range of luminescent materials havebeen studied by optical spectroscopy *** *** has made tremendous contri-bution to this research *** of his interests inthe recent years was in delocalization pro... 详细信息

关键词：光电导性热发光光学研究无机发光材料

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热镀锌理论与工艺

热镀锌理论与工艺

1959年

作者： h.巴布利克

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没理由过穷日子中英对照

Amplitude analysis of the decays D^(0)→π^(+)π^(−)π^(+)π^(−)and D^(0)→π^(+)π^(−)π^(0)π^(0)

丛书名：激励世界的经典演讲丛书

2006年

作者：（英）拉塞尔·康韦尔

本书收录了美国著名演讲家拉塞尔·康韦尔的演讲《没理由过穷日子》，这部励志类演讲稿在全球巡讲6124次，被誉为“美国最伟大的演讲”之一。

ISBN: (纸本)7506813882

本书收录了美国著名演讲家拉塞尔·康韦尔的演讲《没理由过穷日子》，这部励志类演讲稿在全球巡讲6124次，被誉为“美国最伟大的演讲”之一。

关键词：成功心理学通俗读物汉英

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Chinese Physics C 2024年第8期48卷 6-33页

作者： M.Ablikim M.N.Achasov P.Adlarson O.Afedulidis X.C.Ai r.Aliberti A.Amoroso Q.An Y.bai O.bakina I.balossino Y.ban h.-r.bao V.batozskaya K.begzsuren N.berger M.berlowski M.bertani D.bettoni F.bianchi E.bianco A.bortone I.boyko r.A.briere A.brueggemann h.Cai X.Cai A.Calcaterra G.F.Cao N.Cao S.A.Cetin J.F.Chang W.L.Chang G.r.Che G.Chelkov C.Chen C.h.Chen Chao Chen G.Chen h.S.Chen M.L.Chen S.J.Chen S.L.Chen S.M.Chen T.Chen X.r.Chen X.T.Chen Y.b.Chen Y.Q.Chen Z.J.Chen Z.Y.Chen S.K.Choi X.Chu G.Cibinetto F.Cossio J.J.Cui h.L.Dai J.P.Dai A.Dbeyssi r.E.de boer D.Dedovich C.Q.Deng Z.Y.Deng A.Denig I.Denysenko M.Destefanis F.De Mori b.Fang S.S.Fang W.X.Fang Y.Fang Y.Q.Fang r.Farinelli L.Fava F.Feldbauer G.Felici C.Q.Feng J.h.Feng Y.T.Feng K.Fischer M.Fritsch C.D.Fu J.L.Fu Y.W.Fu h.Gao Y.N.Gao Yang Gao S.Garbolino I.Garzia P.T.Ge Z.W.Ge C.Geng E.M.Gersabeck b.Ding X.X.Ding Y.Ding Y.Ding J.Dong L.Y.Dong M.Y.Dong X.Dong M.C.Du S.X.Du Z.h.Duan P.Egorov Y.h.Fan J.Fang JA.Gilman K.Goetzen L.Gong W.X.Gong W.Gradl S.Gramigna M.Greco M.h.Gu Y.T.Gu C.Y.Guan Z.L.Guan A.Q.Guo L.b.Guo M.J.Guo r.P.Guo Y.P.Guo A.Guskov J.Gutierrez K.L.han T.T.han X.Q.hao F.A.harris K.K.he K.L.he F.h.heinsius C.h.heinz Y.K.heng C.herold T.holtmann P.C.hong G.Y.hou X.T.hou Y.r.hou Z.L.hou b.Y.hu h.M.hu J.F.hu T.hu Y.hu G.S.huang K.X.huang L.Q.huang X.T.huang Y.P.huang T.hussain F.h\"olzken N.h\"usken N.in der Wiesche M.Irshad J.Jackson S.Janchiv J.h.Jeong Q.Ji Q.P.Ji W.Ji X.b.Ji X.L.Ji Y.Y.Ji X.Q.Jia Z.K.Jia D.Jiang h.b.Jiang P.C.Jiang S.S.Jiang T.J.Jiang X.S.Jiang Y.Jiang J.b.Jiao J.K.Jiao Z.Jiao S.Jin Y.Jin M.Q.Jing X.M.Jing T.Johansson S.Kabana N.Kalantar-Nayestanaki X.L.Kang X.S.Kang M.Kavatsyuk b.C.Ke V.Khachatryan A.Khoukaz r.Kiuchi O.b.Kolcu b.Kopf M.Kuessner X.Kui A.Kupsc W.K\"uhn J.J.Lane P.Larin L.Lavezzi T.T.Lei Z.h.Lei h.Leithoff M.Lellmann T.Lenz C.Li C.Li C.h.Li Cheng Li D.M.Li F.Li G.Li h.Li h.b.Li h.J.Li h.N.Li hui Li J.r.Li J.S.Li K.Li L.J.Li L.K.Li Lei Li M.h.Li P.r.Li Q.M.Li Q.X.Li r.Li S.X.Li T.Li W.D.Li W.G.Li X.Li X.h.Li X.L.Li X.Y.Li Y Institute of high Energy Physics Chinese Academy of SciencesBeijing 100049China beihang University Beijing 100191China bochum ruhr-University D-44780 BochumGermany budker Institute of Nuclear Physics Sb rAS(bINP) Novosibirsk 630090Russia Carnegie Mellon University PittsburghPennsylvania 15213USA Central China Normal University Wuhan 430079China Central South University Changsha 410083China China Center of Advanced Science and Technology Beijing 100190China China University of Geosciences Wuhan 430074China Chung-Ang University Seoul06974Republic of Korea COMSATS University Islamabad Lahore CampusDefence RoadOff Raiwind Road54000 LahorePakistan Fudan University Shanghai 200433China GSI helmholtzcentre for heavy Ion research Gmbh D-64291 DarmstadtGermany Guangxi Normal University Guilin 541004China Guangxi University Nanning 530004China hangzhou Normal University Hangzhou 310036China hebei University Baoding 071002China helmholtz Institute Mainz Staudinger Weg 18D-55099 MainzGermany henan Normal University Xinxiang 453007China henan University Kaifeng 475004China henan University of Science and Technology Luoyang 471003China henan University of Technology Zhengzhou 450001China huangshan College Huangshan 245000China hunan Normal University Changsha 410081China hunan University Changsha 410082China Indian Institute of Technology Madras Chennai 600036India Indiana University BloomingtonIndiana 47405USA INFN Laboratori Nazionali di Frascati INFN Laboratori Nazionali di FrascatiI-00044FrascatiItaly INFN Laboratori Nazionali di Frascati INFN Sezione di PerugiaI-06100PerugiaItaly INFN Laboratori Nazionali di Frascati University of PerugiaI-06100PerugiaItaly INFN Sezione di Ferrara INFN Sezione di FerraraI-44122FerraraItaly INFN Sezione di Ferrara University of FerraraI-44122FerraraItaly Inner Mongolia University Hohhot 010021China Institute of Modern Physics Lanzhou 730000China Institute of Physics and Technology Peace Avenue 54BUlaanbaatar 13330Mongolia Instituto de A

Using e^(+)e^(−)annihilation data corresponding to an integrated luminosity of 2.93 fb^(−1)taken at the center-of-mass energy√s=3.773 GeV with the bESIII detector,a joint amplitude analysis is performed on the decays D^(0)→π^(+)π^(−)π^(+)π^(−)and D^(0)→π^(+)π^(−)π^(0)π^(0)(non-η).The fit fractions of individual components are obtained,and large interferences among the dominant components of the decays D^(0)→a_(1)(1260)π,D^(0)→π(1300)π,D^(0)→ρ(770)ρ(770),and D^(0)→2(ππ)_(S)are observed in both *** the obtained amplitude model,the CP-even fractions of D^(0)→π^(+)π^(−)π^(+)π^(−)and D^(0)→π^(+)π^(−)π^(0)π^(0)(non-η)are determined to be(75.2±1.1_(stat).±1.5_(syst.))%and(68.9±1.5_(stat).±2.4_(syst.))%,*** branching fractions of D^(0)→π^(+)π^(−)π^(+)π^(−)and D^(0)→π^(+)π^(−)π^(0)π^(0)(non-η)are measured to be(0.688±0.010_(stat.)±0.010_(syst.))%and(0.951±0.025_(stat.)±0.021_(syst.))%,*** amplitude analysis provides an important model for the binning strategy in measuring the strong phase parameters of D^(0)→4πwhen used to determine the CKM angleγ(ϕ_(3))via the b^(−)→DK^(−)decay.

关键词： bESIII D^(0)meson decays amplitude analysis CP-even fraction

The Soft X-ray Imager(SXI)on the SMILE Mission

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Earth and Planetary Physics 2024年第1期8卷 5-14页

作者： S.Sembay A.L.Alme D.Agnolon T.Arnold A.beardmore A.belén balado Margeli C.bicknell C.bouldin G.branduardi-raymont T.Crawford J.P.breuer T.buggey G.butcher r.Canchal J.A.Carter A.Cheney Y.Collado-Vega h.Connor T.Crawford N.Eaton C.Feldman C.Forsyth T.Frantzen G.Galgóczi J.Garcia G.Y.Genov C.Gordillo h-P.Gröbelbauer M.Guedel Y.Guo M.hailey D.hall r.hampson J.hasiba O.hetherington A.holland S-Y.hsieh M.W.J.hubbard h.Jeszenszky M.Jones T.Kennedy K.Koch-Mehrin S.Kögl S.Krucker K.D.Kuntz C.Lakin G.Laky O.Lylund A.Martindale J.Miguel Mas hesse r.Nakamura K.Oksavik N.Østgaard h.Ottacher r.Ottensamer C.Pagani S.Parsons P.Patel J.Pearson G.Peikert F.S.Porter T.Pouliantis b.h.Qureshi W.raab G.randal A.M.read N.M.M.roque M.E.rostad C.runciman S.Sachdev A.Samsonov M.Soman D.Sibeck S.Smit J.Søndergaard r.Speight S.Stavland M.Steller Tianran Sun J.Thornhill W.Thomas K.Ullaland b.Walsh D.Walton C.Wang S.Yang School of Physics and Astronomy University of LeicesterLeicesterLE17RHUK Space Park Leicester University of LeicesterLeicesterLE17RHUK Mullard Space Science Laboratory University College LondonDorkingRH56NTUK Centre for Electronic Imaging Open UniversityMilton KeynesMK76 AAUK birkeland Centre for Space Science Department of Physics and TechnologyUniv.of BergenN-5007 BergenNorway University of Vienna A-1010 ViennaAustria Space research Institute Austrian Academy of SciencesA-8042 GrazAustria National Institute of Aerospace Technology MadridSpain ESTEC European Space Agency2201 AZ NoordwijkNetherlands State Key Laboratory of Space Weather National Space Science CentreBeijing 100190China University of Applied Sciences and Arts Northwestern Switzerland CH-5210 WindischSwitzerland Koegl Space Gmbh CH-8157 DielsdorfSwitzerland Space Acoustics Gmbh CH-8157 DielsdorfSwitzerland Zurich University of Applied Sciences 8400 WinterhurSwitzerland Genov Solutions N-5172 LoddefjordNorway STM Engineering N-5165 LaksevagNorway John hopkins University Applied Physics Laboratory MD 20723USA NASA/Goddard Space Flight Centre MD 20771USA Center for Space Physics Boston UniversityBostonMA 02215USA Department of Theoretical Physics and Astrophysics Masaryk University60177 BrnoCzech Republic Institute of Physics E¨otvo¨s Lor´and University1053 BudapestHungary Aerospace Information research Institute Chinese Academy of SciencesBeijing 100045China Centro de Astrobiologia(CAb) CSIC-INTAMadridSpain

The Soft X-ray Imager(SXI)is part of the scientific payload of the Solar wind Magnetosphere Ionosphere Link Explorer(SMILE)*** is a joint science mission between the European Space Agency(ESA)and the Chinese Academy of Sciences(CAS)and is due for launch in *** is a compact X-ray telescope with a wide field-of-view(FOV)capable of encompassing large portions of Earth’s magnetosphere from the vantage point of the SMILE *** is sensitive to the soft X-rays produced by the Solar Wind Charge eXchange(SWCX)process produced when heavy ions of solar wind origin interact with neutral particles in Earth’s *** provides a mechanism for boundary detection within the magnetosphere,such as the position of Earth’s magnetopause,because the solar wind heavy ions have a very low density in regions of closed magnetic field *** sensitivity of the SXI is such that it can potentially track movements of the magnetopause on timescales of a few minutes and the orbit of SMILE will enable such movements to be tracked for segments lasting many *** is led by the University of Leicester in the United Kingdom(UK)with collaborating organisations on hardware,software and science support within the UK,Europe,China and the United States.

关键词： Soft X-ray Imaging micropore optics large area CCD

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表达与意义

2017年

作者： (美)约翰·r.塞尔(John r. Searle)

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铸造生产自动化装置与系统