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107篇 您的检索式:作者名="Ovidiu"
    题名 作者 年代 出处 被引量
1Microwave Synthesis of Large Few-Layer Graphene Sheets in Aqueous Solution of Ammonia显示文摘Few-layer graphene (FLG) sheets with sizes exceeding several micrometers have been synthesized by exfoliation of expanded graphite in aqueous solution of ammonia under microwave irradiation, with an overall yield approaching 8 wt.%. Transmission electron microscopy (in bright-field and dark-field modes) together with electron diffraction patterns and atomic force microscopy confirmed that this graphene material consisted mostly of mono-, bi- or few-layer graphene (less than ten layers). The high degree of surface reduction was confirmed by X-ray photoelectron and infrared spectroscopies. In addition, the high stability of the FLG in the liquid medium facilitates the deposition of the graphene material onto several substrates via low-cost solution-phase processing techniques, opening the way to subsequent applications of the material.Izabela Janowska Kambiz Chizari Ovidiu Ersen Spyridon Zafeiratos Driss Soubane Victor Da Costa Virginie Speisser Christine Boeglin Matthieu Houllé Dominique Bégin Dominique Plee Marc-Jacques Ledoux Cuong Pham-Huu 2010Nano Research2010,3,2:22
2The Relationship Between Attenuated Plaque Identified by Intravascular Ultrasound and No-Reflow After Stenting in Acute Myocardial Infarction显示文摘Xiaofan Wu Gary S. Mintz Kai Xu Alexandra J. Lansky Bernhard Witzenbichler Giulio Guagliumi Bruce Brodie Mirle A. Kellett Ovidiu Dressler Helen Parise Roxana Mehran Gregg W. Stone Akiko Maehara 2011JACC: Cardiovascular Interventions2011,,5:3
3Pegylated-interferon alpha 2a treatment for chronic hepatitis C in patients on chronic haemodialysis显示文摘瞄准:评估反应到 pegylated 干扰素高山哈在长期的血液透析上的长期的丙肝病人的 2a。方法:有长期的 C 肝炎的十个病人在这研究被注册。所有为超过 6 瞬间,积极 antiHCV 抗体和积极 PCR HCV-RNA 增加了 aminotransferases。我们管理了木钉干扰素高山哈 2a 为 48 wk 的 180 microg/wk。在治疗的 12 wk 以后,我们评估了生物化学、早的 virological 反应(EVR ) 。在治疗的结束,我们在我们评估了的治疗的结束以后评估了生物化学的反应和 24 wk 持续 virological 反应(SVR ) 。我们在治疗期间监视了副作用。结果:二个病人在治疗的开始的 12 wk 放弃了并且 2 在治疗的开始的 12 wk 以后。在治疗的 12 wk 以后, 7 从 8 个病人有生物化学的反应和 EVR, 1 有生物化学的反应但是坚持的病毒血。我们不得不在 2 种情况中把 pegylated 干扰素的剂量归结为 135 mug/wk。三(50%) 从 6,病人们在治疗的结束以后有 SVR 24 wk。Intention-to-treat 分析证明 3 从 10 个病人(30%) 有 SVR。副作用发生在大多数病人(像流感的症候群,血小板减少或 leucopoenia ) ,但是他们没强加治疗的中止。结论:在有木钉干扰素高山的治疗的 12 wk 以后哈在有长期的 C 肝炎的长期的血液透析上的病人的 2a (40 ku ) , EVR 在 87.5% 被获得(7/8 ) 盒子。SVR 在完成了治疗的 48 wk 的 50% 盒子(3/6 病人) 中被完成。Ioan Sporea Alina Popescu Roxana ■irli Ovidiu Golea CameliaTotolici Mirela Dǎnilǎ Corina Vernic 2006World Journal of Gastroenterology2006,12,26:2
4Potential roles of functional bacterial amyloid proteins,bacterial biosurfactants and other putative gut microbiota products in the etiopathogeny of Parkinson’s Disease显示文摘An increasing number of studies provide evidence for the existence of a microbiota-gut-brain axis and its potential involvement in the development of sporadic Parkinson’s disease and other neurodegenerative conditions.The neuropathologic hallmark of Parkinson’s disease is the presence of brain intraneuronal aggregates of misfolded alpha-synuclein,known as Lewy bodies.Some gut microbiota products may trigger alpha-synuclein conformational changes in the neurons of the enteric nervous system,which can then spread to the brain in a prion-like fashion through the vagus nerve.Others may interfere with neuroinflammatory pathways and susceptibility to neurodegeneration.In this review,we assess the potential role of putative gut microbiota products in the etiopathogeny of Parkinson’s disease,with a special emphasis on functional bacterial amyloid proteins,bacterial biosurfactants,endotoxins and short-chain fatty acids.The possible roles of molecular hydrogen,a common byproduct of bacterial fermentation,are also addressed.EMILIA MANOLE LAURA DUMITRESCU CRISTINA NICULIȚE BOGDAN OVIDIU POPESCU LAURA CRISTINA CEAFALAN 2021BIOCELL2021,45,1:2
5Synthesis of hydroxyapatite nanotubes for biomedical applications显示文摘Balasaheb B. Chandanshive Priyanka Rai Andre L. Rossi Ovidiu Ersen Deepa Khushalani 2013Materials Science & Engineering C2013,,5:1
6REI equivalent design for electric power systems with genetic algorithms显示文摘Mihai G Ovidiu I Gilda G A 2008WSEAS Transactions on Circuits & Systems2008,7,10:1
7Diffusion abnormality maps in demyelinating disease: Correlations with clinical scores显示文摘Mihaela Onu Adina Roceanu Uta Sboto-Frankenstein Robert Bendic Eugen Tarta Florentin Preoteasa Ovidiu Bajenaru 2011European Journal of Radiology2011,,3:1
8Carbon nanotubes decorated α-Al_2O_3 containing cobalt nanoparticles for Fischer-Tropsch reaction显示文摘A new hierarchical composite consisted of multi-walled carbon nanotubes (CNTs) layer anchored on macroscopic α-Al2O3 host matrix was synthesized and used as support for Fischer-Tropsch synthesis (FTS). The composite constituted by a thin shell of a homogeneous, highly entangled and structure-opened carbon nanotubes network and it exhibited a relatively high and fully accessible specific surface area of 76 m 2 g-1 , compared with that of 5 m 2 g-1 of the original α-Al2O3 support. The metal-support interaction between carbon nanotubes surface and cobalt precursor and high effective surface area led to a relatively high dispersion of cobalt nanoparticles. This hierarchically supported cobalt catalyst exhibited a high FTS activity along with an extremely high selectivity towards liquid hydrocarbons compared with the cobalt-based catalyst supported on pristine α-Al2O3 or on CNTs carriers. This improvement can attribute to the high accessibility of composite surface area comparing with the macroscopic host structure alone or to the bulk CNTs where the nanoscopic dimension induced a dense packing with low mass transfer which favoured the problem of reactants competitive diffusion towards the cobalt active site. In addition, intrinsic thermal conductivity of decorated CNTs could help the heat dissipating throughout the catalyst body, thus avoiding the formation of local hot spots which appeared in high CO conversion under pure syngas feed in FTS reaction. Cobalt supported on CNTs decorated α-Al2O3 catalyst also exhibited satisfied high stability during more than 200 h on stream under relatively severe conditions compared with other catalysts reported in the literature. Finally, the macroscopic shape of such composite easily rendered its usage as catalyst support in a fixed-bed configuration without facing problems of transport and pressure drop as encountered with the bulk CNTs.Yuefeng Liu Thierry Dintzer Ovidiu Ersen Cuong Pham-Huu 2013Journal of Energy Chemistry2013,22,2:1
9Evaluation of robustness against rotation- of LBP, CCR and ILBP features in granite texture classification显示文摘ANTONION Fernandez OVIDIU Ghita ELENA Gonzalez 2011Machine Vision and Application2011,22,6:1
10Six-port direct digital receiver (SPDR) and standard direct receiver (SDR) results for QPSK modulation at high speeds显示文摘Jean-Christophe Schiel Serioja Ovidiu Tatu Ke Wu Rcanato G Bosisio 2002IEEE MIT-S Digest2002,,:1
11A generic stochastic model for supply-and-return network design显示文摘Ovidiu Listes 2007Computers & Operations Research2007,,34:1
12The integrated response of the human cerebro-cerebellar and limbic systems to acupuncture stimulation at ST 36 as evidenced by fMRI显示文摘Hui KS Liu Jing Marina Ovidiu 2005Neurolmage2005,27,3:1
13Use of in Vivo Two-dimensional MR Spectroscopy to Compare the Biochemistry of the Human Brain to That of Glioblastoma 显示文摘Saadallah Ramadan Ovidiu C Andronesi 2011Radiology2011,259,2:1
14Cyclooxygenase-2 inhibition with celecoxib enhances antitumor efficacy and reduces diarrhea side effect of CPT-11显示文摘Ovidiu CT William FD Valerie SS 2002Cancer Res2002,62,15:1
15COX-2 inhibitors as radiosensitizing agents for cancer therapy 显示文摘Thomas DW Nancy H Ovidiu TC 2003American Journal of Clinical Oncology2003,26,4:1
16Bacterial inactivation using an RF-powered atmospheric pressure plasma 显示文摘Ashish Sharrria Amy Pruden Ovidiu Stan 2006IEEE Trans on Plasma Sci2006,34,4:1
17A Scenario aggregation-based approach for determining a robust airline fleet composi- tion for dynamic capacity allocation显示文摘Ovidiu L O Rommert D 2005Transportation Science2005,39,3:1
18Neuro-fuzzy motion controller design using improved simple genetic algorithm显示文摘Ovidiu Popvoci Vlad Toshio Fukuda 2003IEEE2003,,7:1
19AngiotensinⅠconverting enzyme and chymase in cardiovascular tissues显示文摘 Sigrid H Ovidiu B 1996Kidney International1996,49,55:1
20High yield graphene and few-layer graphene synthesis assisted by microwaves显示文摘Izabela Janowska Dominique Bégin Ovidiu Ersen Maria Simona Moldovan Kambiz Chizari Marc Jacques Ledoux Cuong Pham-Huu 2011Physica E: Low-dimensional Systems and Nanostructures2011,,6:1
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