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182篇 您的检索式:作者名="Ward MA"
    题名 作者 年代 出处 被引量
1Dynamic Stability Analysis of Linear Time-varying Systems via an Extended Modal Identification Approach显示文摘The problem of linear time-varying(LTV) system modal analysis is considered based on time-dependent state space representations, as classical modal analysis of linear time-invariant systems and current LTV system modal analysis under the ‘‘frozen-time'' assumption are not able to determine the dynamic stability of LTV systems.Time-dependent state space representations of LTV systems are first introduced, and the corresponding modal analysis theories are subsequently presented via a stabilitypreserving state transformation. The time-varying modes of LTV systems are extended in terms of uniqueness, and are further interpreted to determine the system's stability. An extended modal identification is proposed to estimate the time-varying modes, consisting of the estimation of the state transition matrix via a subspace-based method and the extraction of the time-varying modes by the QR decomposition. The proposed approach is numerically validated by three numerical cases, and is experimentally validated by a coupled moving-mass simply supported beam experimental case. The proposed approach is capable of accurately estimating the time-varying modes, and provides a new way to determine the dynamic stability of LTV systems by using the estimated time-varying modes.Zhisai MA Li LIU Sida ZHOU Frank NAETS Ward HEYLEN Wim DESMET 2017Chinese Journal of Mechanical Engineering2017,30,2:2
2Synergistic neuroprotective effects by combining an NMDA or AMPA receptor antagonist with nitric oxide synthase inhibitors in global cerebral ischaemia 显示文摘Hicks CA Ward MA Swettenham JB O'Neill MJ 1999Eur J Pharmacol1999,381,23:2
3Harmful molecular mechanisms in sepsis显示文摘RITTIRSCH D FLIERL MA WARD PA 2008Nat Rev Immunol2008,8,:1
4The effect of body mass index on global brain volume in middle-aged adults:A cross sectional study显示文摘Ward MA Carlsson CM Trivedi MA 2005BMC Neurol2005,5,:1
5Shigella vulvovaginitis in a prepubertal child显示文摘Jasper JM Ward MA 2006Pediatr Emerg Care2006,22,8:1
6Hemorrhage induced vascular hyporeactivity to norepinephrine in select vasculatures of rats and the roles of nitric oxide and endothelin显示文摘Liu LM Ward JA Dubick MA 2003Shock2003,19,:1
7Purification and identification of the STAT5 protease in myeloid cells显示文摘Schuster B Hendry L Byers H Lynham SF Ward MA John S 2007Biochem J2007,404,:1
8Proteomics characterization of abundant Golgi membrane proteins显示文摘Bell AW Ward MA Blackstock WP 0,,:1
9Harmful molecular mechanisms in sepsis显示文摘RITTIRSCH D FLIERL MA WARD PA 2008Nat Rev Immunol2008,8,10:1
10Annual number of lung cancer deaths potentially avertable by screening in the United States显示文摘Ma J Ward EM Smith R 2013Cancer2013,119,7:1
11Infra-red and Raman Spectra of Poly (m-methylene terephthalate) Polymers显示文摘Ward IM Wilding MA 1977Polymer1977,1,4:1
12Multifactorial analysis of fiream wounds to the head with attention to anatomic location显示文摘Cina SJ Ward ME Hopkins MA 1999Am J Forensic Med Pathol1999,20,2:1
13Invertebrate D2 type dopamine receptor exhibits age-based plasticity of expression in the mushroom bodies of the honeybee brain显示文摘Humphries MA Mustard JA Hunter SJ Mercer A Ward V Ebert PR 0,,03:1
14Risk of serious neuro-logic disease after immunization of young children in Britain and Ireland显示文摘Katherine N Ward MA Chir 2007Pediatrics2007,120,2:1
15Synthesis of novel analogs of cabergoline:improving cardiovascular safety by removing 5-HT2B receptor agonism显示文摘Dosa PI Ward T Walters MA 0,,02:1
16Effects of anti-inflammatory drugs and preservatives on morphologic characteristics and migration of canine corneal epithelial cells in tissue culture显示文摘Hendrix DV Ward DA Barnhill MA 2002Vet Ophthalmol2002,5,2:1
17Hemor rhage-induced vascular hyporeactivity to norepinephrine in select vasculatures of rats and the roles of nitric oxide and endothelin显示文摘Liu LM Ward JA Dubick MA 2003Shock2003,19,3:1
18Synergistic neuroprotective effects by combining a NMDA or AMPA receptor antagonist with nitric oxide synthase inhibitors in global cerebral ischemia显示文摘Hick CA Ward MA Swettenham JB 1999Eur J Pharmacol1999,381,23:1
19A comprehensive systematic review of testicular germ cell tumor surveillance显示文摘Groll RJ Warde P Jewett MA 2007Crit Rev Oncol Hematol2007,64,3:1
20Harmful molecular mechanisms in sepsis显示文摘Rittirsch D Flied MA Ward PA 2008Nat Rev Immunol2008,8,10:1
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